--- DOAJ_listed: '1' OA_place: publisher OA_type: diamond PlanS_conform: '1' _id: '22816' abstract: - lang: eng text: "The Galactic Be star binary MWC 656 was long considered the only known Be star+black hole (BH) system, making it a critical\r\nbenchmark for models of massive binary evolution and for the expected X-ray emission of Be+BH binaries. However, recent dynamical measurements cast doubt on the presence of a BH companion. We present new multi-epoch ultraviolet spectroscopy from the\r\nHubble Space Telescope, combined with high-resolution optical spectra, to reassess the nature of the companion. The far-ultraviolet\r\nspectra reveal high-ionisation features – including prominent N v and He ii lines – which are absent in the spectra of normal Be stars\r\nand are indicative of a hot, luminous companion. Spectral modelling shows that these features cannot originate from the Be star or\r\nfrom an accretion disc around a compact object. Instead, we find that the data are best explained by a hot (Teff ≈ 85 kK), compact,\r\nhydrogen-deficient star with strong wind signatures, consistent with an intermediate-mass stripped star. Our revised orbital solution\r\nand composite spectroscopic modelling yield a companion mass of M2 = 1.48+0.55\r\n−0.46 M\f, definitively ruling out a BH and disfavouring a\r\nwhite dwarf. MWC 656 thus joins the growing class of Be + stripped star binaries. The system’s unusual properties – including a high\r\ncompanion temperature and wind strength – extend the known parameter space of such binaries. The continued absence of confirmed\r\nOBe+BH binaries in the Galaxy highlights a growing tension with population synthesis models." acknowledgement: "Open access funding provided by Max Planck Society. The authors sincerely thank the anonymous referee for\r\ntheir thorough review and thoughtful and constructive comments. The authors\r\nthank Howard Isaacson and Andrew W. Howard for their help in obtaining five HIRES optical spectra, which were used in the orbital analysis, and\r\nKevin Burdge and Charlie Conroy for their help in obtaining the HST spectra. J. Müller-Horn thanks Hans-Walter Rix, Sahar Shahaf, Pablo Marchant,\r\nAnnachiara Picco, Anna F. Pala, and Dominic Bowman for helpful discussions and suggestions. J. Müller-Horn acknowledges support from the European\r\nResearch Council for the ERC Advanced Grant [101054731]. V. Ramachandran and A.A.C. Sander are supported by the German Deutsche Forschungsgemeinschaft, DFG in the form of an Emmy Noether Research Group –\r\nProject-ID 445674056 (SA4064/1-1, PI Sander) and acknowledge financial\r\nsupport by the Federal Ministry for Economic Affairs and Energy (BMWE)\r\nvia the Deutsches Zentrum für Luft- und Raumfahrt (DLR) grant 50 OR\r\n2509 (PI Sander). V. Ramachandran, A.A.C. Sander, and E.C. Schösser further acknowledge financial support by the BMWE via the DLR grant 50 OR\r\n2306 (PI Ramachandran/Sander). This project was co-funded by the European Union (Project 101183150 – OCEANS). This work has made use of\r\ndata from the European Space Agency (ESA) mission Gaia (https://www.\r\ncosmos.esa.int/gaia), processed by the Gaia Data Processing and Analysis Consortium (DPAC, https://www.cosmos.esa.int/web/gaia/dpac/\r\nconsortium). Funding for the DPAC has been provided by national institutions,\r\nin particular the institutions participating in the Gaia Multilateral Agreement.\r\nTS acknowledges support from the Israel Science Foundation (ISF) under grant\r\nnumber 0603225041 and from the European Research Council (ERC) under the\r\nEuropean Union’s Horizon 2020 research and innovation program (grant agreement 101164755/METAL)." article_number: A187 article_processing_charge: No article_type: original arxiv: 1 author: - first_name: Johanna full_name: Müller-Horn, Johanna last_name: Müller-Horn - first_name: Varsha full_name: Ramachandran, Varsha last_name: Ramachandran - first_name: Kareem full_name: El-Badry, Kareem last_name: El-Badry - first_name: Andreas A.C. full_name: Sander, Andreas A.C. last_name: Sander - first_name: Julia K full_name: Bodensteiner, Julia K id: 48162413-c59a-11ee-a1af-dbba36c8a756 last_name: Bodensteiner - first_name: Douglas R. full_name: Gies, Douglas R. last_name: Gies - first_name: Ylva Louise Linsdotter full_name: Götberg, Ylva Louise Linsdotter id: d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d last_name: Götberg orcid: 0000-0002-6960-6911 - first_name: Thomas full_name: Rivinius, Thomas last_name: Rivinius - first_name: Tomer full_name: Shenar, Tomer last_name: Shenar - first_name: Elisa C. full_name: Schösser, Elisa C. last_name: Schösser - first_name: Luqian full_name: Wang, Luqian last_name: Wang - first_name: Allyson full_name: Bieryla, Allyson last_name: Bieryla - first_name: Lars A. full_name: Buchhave, Lars A. last_name: Buchhave - first_name: David W. full_name: Latham, David W. last_name: Latham citation: ama: Müller-Horn J, Ramachandran V, El-Badry K, et al. Ultraviolet spectroscopy reveals a hot and luminous companion to the Be star+black hole candidate MWC 656. Astronomy & Astrophysics. 2026;708. doi:10.1051/0004-6361/202557960 apa: Müller-Horn, J., Ramachandran, V., El-Badry, K., Sander, A. A. C., Bodensteiner, J. K., Gies, D. R., … Latham, D. W. (2026). Ultraviolet spectroscopy reveals a hot and luminous companion to the Be star+black hole candidate MWC 656. Astronomy & Astrophysics. EDP Sciences. https://doi.org/10.1051/0004-6361/202557960 chicago: Müller-Horn, Johanna, Varsha Ramachandran, Kareem El-Badry, Andreas A.C. Sander, Julia K Bodensteiner, Douglas R. Gies, Ylva Louise Linsdotter Götberg, et al. “Ultraviolet Spectroscopy Reveals a Hot and Luminous Companion to the Be Star+black Hole Candidate MWC 656.” Astronomy & Astrophysics. EDP Sciences, 2026. https://doi.org/10.1051/0004-6361/202557960. ieee: J. Müller-Horn et al., “Ultraviolet spectroscopy reveals a hot and luminous companion to the Be star+black hole candidate MWC 656,” Astronomy & Astrophysics, vol. 708. EDP Sciences, 2026. ista: Müller-Horn J, Ramachandran V, El-Badry K, Sander AAC, Bodensteiner JK, Gies DR, Götberg YLL, Rivinius T, Shenar T, Schösser EC, Wang L, Bieryla A, Buchhave LA, Latham DW. 2026. Ultraviolet spectroscopy reveals a hot and luminous companion to the Be star+black hole candidate MWC 656. Astronomy & Astrophysics. 708, A187. mla: Müller-Horn, Johanna, et al. “Ultraviolet Spectroscopy Reveals a Hot and Luminous Companion to the Be Star+black Hole Candidate MWC 656.” Astronomy & Astrophysics, vol. 708, A187, EDP Sciences, 2026, doi:10.1051/0004-6361/202557960. short: J. Müller-Horn, V. Ramachandran, K. El-Badry, A.A.C. Sander, J.K. Bodensteiner, D.R. Gies, Y.L.L. Götberg, T. Rivinius, T. Shenar, E.C. Schösser, L. Wang, A. Bieryla, L.A. Buchhave, D.W. Latham, Astronomy & Astrophysics 708 (2026). das_tickbox: '1' dataavailabilitystatement: "The newly calculated PoWR model spectra for the Be star and\r\nthe companion will be provided as supplementary material on\r\nZenodo. The HST UV spectra used in this work are publicly\r\naccessible and can be obtained from MAST. Optical TRES and\r\nHIRES spectra are available at the CDS via https://cdsarc.\r\ncds.unistra.fr/viz-bin/cat/J/A+A/708/A187" date_created: 2026-09-06T22:01:57Z date_published: 2026-04-01T00:00:00Z date_updated: 2026-09-16T08:56:14Z day: '01' ddc: - '520' department: - _id: YlGo doi: 10.1051/0004-6361/202557960 external_id: arxiv: - '2601.14403' file: - access_level: open_access checksum: 58213b981fe02219f3c9b77ad76abd8e content_type: application/pdf creator: dernst date_created: 2026-09-09T13:08:37Z date_updated: 2026-09-09T13:08:37Z file_id: '22891' file_name: 2026_AstronomyAstrophysics_MuellerHorn.pdf file_size: 5726333 relation: main_file success: 1 file_date_updated: 2026-09-09T13:08:37Z fulldoi: https://doi.org/10.1051/0004-6361/202557960 has_accepted_license: '1' intvolume: ' 708' language: - iso: eng license: https://creativecommons.org/licenses/by/4.0/ month: '04' oa: 1 oa_version: Published Version publication: Astronomy & Astrophysics publication_identifier: eissn: - 1432-0746 issn: - 0004-6361 publication_status: published publisher: EDP Sciences quality_controlled: '1' related_material: record: - id: '22933' relation: research_data status: public researchdata_availability: no scopus_import: '1' status: public supplementarymaterial: yes title: Ultraviolet spectroscopy reveals a hot and luminous companion to the Be star+black hole candidate MWC 656 tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 708 year: '2026' ... --- DOAJ_listed: '1' OA_place: publisher OA_type: diamond PlanS_conform: '1' _id: '21450' abstract: - lang: eng text: Stellar wind mass loss of massive stars is often assumed to depend on their metallicity Z. Therefore, evolutionary models predict that massive stars in lower-Z environments are able to retain more of their hydrogen-rich layers and evolve into brighter cool supergiants (cool SGs; Teff < 7 kK). Surprisingly, in galaxies in the metallicity range 0.2 ≲ Z/Z⊙ ≲ 1.5, previous studies have not found a metallicity dependence on the upper luminosity limit Lmax of cool SGs. Here, we add four galaxies to the sample studied for this purpose with data from the Hubble Space Telescope and the James Webb Space Telescope (JWST). Observations of the extremely metal-poor dwarf galaxy I Zw 18 from JWST allow us to extend the studied metallicity range down to Z/Z⊙ ≈ 1/40. For cool SGs in all studied galaxies, including I Zw 18, we find a constant value of Lmax ≈ 105.6 L⊙, similar to literature results for 0.2 ≲ Z/Z⊙ ≲ 1.5. In I Zw 18 and the other studied galaxies, the presence of Wolf-Rayet stars has been previously inferred. Although we cannot rule out that some of them become intermediate-temperature objects, this paints a picture in which evolved stars with L > 105.6 L⊙ burn helium as hot, helium-rich stars down to extremely low metallicity. We argue that metallicity-independent late-phase mass loss would be the most likely mechanism responsible for this. Regardless of the exact stripping mechanism (winds or, for example, binary interaction), for the Early Universe our results imply a limitation on black hole masses and a contribution of stars born with M ≳ 30 M⊙ to its surprisingly strong nitrogen enrichment. We propose a scenario in which single stars at low metallicity emit sufficiently hard ionizing radiation to produce He II and C IV lines. In this scenario, late-phase metallicity-independent mass loss produces hot, helium-rich stars. Due to the well-understood metallicity dependence on the radiation-driven winds of hot stars, a window of opportunity would open below 0.2 Z⊙, where self-stripped helium-rich stars can exist without dense Wolf-Rayet winds that absorb hard ionizing radiation. acknowledgement: "We thank our anonymous referee for carefully reading the manuscript and providing a constructive report with helpful feedback. This work is based in part on observations made with the NASA/ESA/CSA James Webb Space Telescope. The data were obtained from the Mikulski Archive for Space Telescopes at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-03127 for JWST. These observations are associated with program #1233. The specific observations analyzed can be accessed via DOI: 10.17909/3c1d-6182. Moreover, this research is based in part on observations made with the NASA/ESA Hubble Space Telescope obtained from the\r\nSpace Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5–26555. These observations are associated with programs #13664, GO-10915, and DD-11307. This research was supported in part by grant NSF PHY-2309135 to the Kavli Institute for Theoretical Physics (KITP). LRP acknowledges support by grants PID2019-105552RB-C41 and PID2022-137779OB-C41 funded\r\nby MCIN/AEI/10.13039/501100011033 by “ERDF A way of making Europe”. LRP acknowledges support from grant PID2022-140483NB-C22 funded by MCIN/AEI/10.13039/501100011033." article_number: A116 article_processing_charge: No article_type: original arxiv: 1 author: - first_name: Abel full_name: Schootemeijer, Abel last_name: Schootemeijer - first_name: Ylva Louise Linsdotter full_name: Götberg, Ylva Louise Linsdotter id: d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d last_name: Götberg orcid: 0000-0002-6960-6911 - first_name: Norbert full_name: Langer, Norbert last_name: Langer - first_name: Giacomo full_name: Bortolini, Giacomo last_name: Bortolini - first_name: Alec S. full_name: Hirschauer, Alec S. last_name: Hirschauer - first_name: Lee full_name: Patrick, Lee last_name: Patrick citation: ama: Schootemeijer A, Götberg YLL, Langer N, Bortolini G, Hirschauer AS, Patrick L. A constant upper luminosity limit of cool supergiant stars down to the extremely low metallicity of I Zw 18. Astronomy & Astrophysics. 2026;707. doi:10.1051/0004-6361/202557675 apa: Schootemeijer, A., Götberg, Y. L. L., Langer, N., Bortolini, G., Hirschauer, A. S., & Patrick, L. (2026). A constant upper luminosity limit of cool supergiant stars down to the extremely low metallicity of I Zw 18. Astronomy & Astrophysics. EDP Sciences. https://doi.org/10.1051/0004-6361/202557675 chicago: Schootemeijer, Abel, Ylva Louise Linsdotter Götberg, Norbert Langer, Giacomo Bortolini, Alec S. Hirschauer, and Lee Patrick. “A Constant Upper Luminosity Limit of Cool Supergiant Stars down to the Extremely Low Metallicity of I Zw 18.” Astronomy & Astrophysics. EDP Sciences, 2026. https://doi.org/10.1051/0004-6361/202557675. ieee: A. Schootemeijer, Y. L. L. Götberg, N. Langer, G. Bortolini, A. S. Hirschauer, and L. Patrick, “A constant upper luminosity limit of cool supergiant stars down to the extremely low metallicity of I Zw 18,” Astronomy & Astrophysics, vol. 707. EDP Sciences, 2026. ista: Schootemeijer A, Götberg YLL, Langer N, Bortolini G, Hirschauer AS, Patrick L. 2026. A constant upper luminosity limit of cool supergiant stars down to the extremely low metallicity of I Zw 18. Astronomy & Astrophysics. 707, A116. mla: Schootemeijer, Abel, et al. “A Constant Upper Luminosity Limit of Cool Supergiant Stars down to the Extremely Low Metallicity of I Zw 18.” Astronomy & Astrophysics, vol. 707, A116, EDP Sciences, 2026, doi:10.1051/0004-6361/202557675. short: A. Schootemeijer, Y.L.L. Götberg, N. Langer, G. Bortolini, A.S. Hirschauer, L. Patrick, Astronomy & Astrophysics 707 (2026). das_tickbox: '0' date_created: 2026-03-15T23:01:35Z date_published: 2026-03-01T00:00:00Z date_updated: 2026-09-16T08:35:19Z day: '01' ddc: - '520' department: - _id: YlGo doi: 10.1051/0004-6361/202557675 external_id: arxiv: - '2510.12594' file: - access_level: open_access checksum: 02a0cd932340207c96fdd3059490ad29 content_type: application/pdf creator: dernst date_created: 2026-03-16T09:05:06Z date_updated: 2026-03-16T09:05:06Z file_id: '21455' file_name: 2026_AstronomyAstrophysics_Schootemeijer.pdf file_size: 2102107 relation: main_file success: 1 file_date_updated: 2026-03-16T09:05:06Z fulldoi: https://doi.org/10.1051/0004-6361/202557675 has_accepted_license: '1' intvolume: ' 707' language: - iso: eng month: '03' oa: 1 oa_version: Published Version publication: Astronomy & Astrophysics publication_identifier: eissn: - 1432-0746 issn: - 0004-6361 publication_status: published publisher: EDP Sciences quality_controlled: '1' researchdata_availability: no scopus_import: '1' status: public supplementarymaterial: no title: A constant upper luminosity limit of cool supergiant stars down to the extremely low metallicity of I Zw 18 tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 707 year: '2026' ... --- DOAJ_listed: '1' OA_place: publisher OA_type: gold PlanS_conform: '1' _id: '21997' abstract: - lang: eng text: 'The massive binary common envelope (CE) phase plays a pivotal role in the formation of close black hole (BH)/neutron star binaries, yet significant uncertainties remain in our understanding of this process. In this study, we aim to constrain the massive binary CE phase by systematically reconstructing three observed BH X-ray binaries (BHXBs): GRO J1655-40, SAX J1819.3-2525, and 4U 1543-47. Through comprehensive binary evolution simulations and parametric supernova modeling, we establish lower limits for the CE efficiency parameters under different energy considerations within the standard energy formalism. Specifically, we derive minimum values for three cases: α0.5U and αU, representing CE efficiencies with half and all of the internal energy contributing to the envelope ejection, respectively, and αH, accounting for the envelope’s enthalpy. Our analysis reveals that the self-consistent formation of these three BHXBs requires CE efficiency parameters satisfying α0.5U ≳ 6.7, αU ≳ 4.2, and αH ≳ 1.7. Notably, we find no viable solutions with CE efficiency values below unity, even when considering the most extreme scenarios, in which the envelope binding energy is significantly reduced through enthalpy inclusion. Our results strongly imply that either additional energy sources are required or the formalism itself must be revised. Furthermore, we quantitatively assess the impact of BH natal kicks on our results. A key finding is that 4U 1543-47’s formation requires substantial natal kicks (≳50 km s−1), as lower kick velocities are incompatible with isolated binary evolution.' acknowledgement: We deeply thank the referee for a very careful reading and constructive comments that have led to the improvement of the manuscript. The authors are grateful to Poshak Gandhi for his valuable suggestions and feedback on this work. This work is supported by the Natural Science Foundation of China (grant Nos. 12125303, 12525304, 12288102, 12473034, 12103028, 12333008, 12422305, 12090040/3, 12273105, 11703081, 11422324, 12073070, and 12173081), the CAS Project for Young Scientists in Basic Research (YSBR-148), the Strategic Priority Research Program of the Chinese Academy of Sciences (grant Nos. XDB1160303, XDB1160201, and XDB1160000), the National Key R&D Program of China (grant Nos. 2021YFA1600403 and 2021YFA1600400), the Key Research Program of Frontier Sciences of CAS (No. ZDBS-LY-7005), the “CAS Light of West China”, the Yunnan Revitalization Talent Support Program-Science & Technology Champion Project (No. 202305AB350003) and Young Talent Project, the International Centre of Supernovae (ICESUN), Yunnan Key Laboratory of Supernova Research (Nos. 202302AN360001 and 202201BC070003), Yunnan Fundamental Research Projects (No. 202401AT070139), and the Natural Science Foundation of Henan Province (No. 242300420944). X.C. acknowledges the New Cornerstone Science Foundation through the XPLORER PRIZE. The authors gratefully acknowledge the “PHOENIX Supercomputing Platform” jointly operated by the Binary Population Synthesis Group and the Stellar Astrophysics Group at Yunnan Observatories, Chinese Academy of Sciences. article_number: '31' article_processing_charge: Yes article_type: original arxiv: 1 author: - first_name: Zhenwei full_name: Li, Zhenwei last_name: Li - first_name: Dandan full_name: Wei, Dandan id: 5dd129bd-0601-11ef-b325-833284687b76 last_name: Wei - first_name: Shi full_name: Jia, Shi last_name: Jia - first_name: Hailiang full_name: Chen, Hailiang last_name: Chen - first_name: Hongwei full_name: Ge, Hongwei last_name: Ge - first_name: Zhuo full_name: Chen, Zhuo last_name: Chen - first_name: Yangyang full_name: Zhang, Yangyang last_name: Zhang - first_name: Xuefei full_name: Chen, Xuefei last_name: Chen - first_name: Zhanwen full_name: Han, Zhanwen last_name: Han citation: ama: 'Li Z, Wei D, Jia S, et al. A path to constraints on common envelope ejection in massive binaries: Full evolutionary reconstruction of three Black Hole X-ray binaries. The Astrophysical Journal. 2026;1004(1). doi:10.3847/1538-4357/ae66fd' apa: 'Li, Z., Wei, D., Jia, S., Chen, H., Ge, H., Chen, Z., … Han, Z. (2026). A path to constraints on common envelope ejection in massive binaries: Full evolutionary reconstruction of three Black Hole X-ray binaries. The Astrophysical Journal. IOP Publishing. https://doi.org/10.3847/1538-4357/ae66fd' chicago: 'Li, Zhenwei, Dandan Wei, Shi Jia, Hailiang Chen, Hongwei Ge, Zhuo Chen, Yangyang Zhang, Xuefei Chen, and Zhanwen Han. “A Path to Constraints on Common Envelope Ejection in Massive Binaries: Full Evolutionary Reconstruction of Three Black Hole X-Ray Binaries.” The Astrophysical Journal. IOP Publishing, 2026. https://doi.org/10.3847/1538-4357/ae66fd.' ieee: 'Z. Li et al., “A path to constraints on common envelope ejection in massive binaries: Full evolutionary reconstruction of three Black Hole X-ray binaries,” The Astrophysical Journal, vol. 1004, no. 1. IOP Publishing, 2026.' ista: 'Li Z, Wei D, Jia S, Chen H, Ge H, Chen Z, Zhang Y, Chen X, Han Z. 2026. A path to constraints on common envelope ejection in massive binaries: Full evolutionary reconstruction of three Black Hole X-ray binaries. The Astrophysical Journal. 1004(1), 31.' mla: 'Li, Zhenwei, et al. “A Path to Constraints on Common Envelope Ejection in Massive Binaries: Full Evolutionary Reconstruction of Three Black Hole X-Ray Binaries.” The Astrophysical Journal, vol. 1004, no. 1, 31, IOP Publishing, 2026, doi:10.3847/1538-4357/ae66fd.' short: Z. Li, D. Wei, S. Jia, H. Chen, H. Ge, Z. Chen, Y. Zhang, X. Chen, Z. Han, The Astrophysical Journal 1004 (2026). das_tickbox: '0' date_created: 2026-06-14T22:01:42Z date_published: 2026-06-10T00:00:00Z date_updated: 2026-09-16T08:31:10Z day: '10' ddc: - '520' department: - _id: YlGo doi: 10.3847/1538-4357/ae66fd external_id: arxiv: - '2604.10440' file: - access_level: open_access checksum: bb76fbb51f8d2834cb79f19e7932e3bd content_type: application/pdf creator: dernst date_created: 2026-06-19T09:56:29Z date_updated: 2026-06-19T09:56:29Z file_id: '22099' file_name: 2026_AstrophysicalJour_Li.pdf file_size: 3386217 relation: main_file success: 1 file_date_updated: 2026-06-19T09:56:29Z fulldoi: https://doi.org/10.3847/1538-4357/ae66fd has_accepted_license: '1' intvolume: ' 1004' issue: '1' language: - iso: eng month: '06' oa: 1 oa_version: Published Version publication: The Astrophysical Journal publication_identifier: eissn: - 1538-4357 issn: - 0004-637X publication_status: published publisher: IOP Publishing quality_controlled: '1' researchdata_availability: no scopus_import: '1' status: public supplementarymaterial: no title: 'A path to constraints on common envelope ejection in massive binaries: Full evolutionary reconstruction of three Black Hole X-ray binaries' tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345 volume: 1004 year: '2026' ... --- DOAJ_listed: '1' OA_place: publisher OA_type: gold _id: '22910' abstract: - lang: eng text: The small nuclear RNA U4atac is a core component of the minor spliceosome. In humans, homozygous or compound heterozygous point mutations in U4atac cause rare developmental disorders, such as Roifman syndrome, characterized by growth restriction, brain anomalies, and immune deficiency. To better define the pathophysiological role of U4atac mutations, we here establish a model of minor spliceosome dysfunction by generating a Drosophila melanogaster CRISPR/Cas9-induced U4atac mutant in the highly conserved stem II region. U4atac homozygous mutants exhibit growth and neurodevelopmental defects, immunodeficiency, and gastrointestinal symptoms. Using bulk RNA-sequencing and functional assays, we reveal that mutations in U4atac affect the splicing of a large set of transcripts involved in innate immunity, hematopoiesis, and intestinal cell functions, including the Drosophila Janus kinase (JAK) homolog hopscotch (hop). Importantly, U4atac deficiency reduces Hop expression and causes Hop-related hematopoietic defects at the embryonic and larval stages. Notably, we also observe reduced expression of Jak1 and attenuated activation of downstream signaling in patients with Roifman syndrome. Thus, our work identifies alterations of Jak signaling as part of the pathogenesis of RNU4atac-opathy. acknowledgement: 'Microscopy was performed at the Dalhousie University, Faculty of Medicine, Cellular and Molecular Digital Imaging. We thank Gerard Gaspard for their help with microscopy. The sequencing of the RNA libraries was performed at Génome Québec, Montreal, QC. Bioinformatics support was provided by the Canadian Center for Computational Genomics (C3G) at the McGill Genome Center of the Victor Phillip Dahdaleh Institute of Genomic Medicine, Montreal, Quebec, Canada. We thank Dr. Rahul Kanadia at the University of Connecticut for insightful discussions on the topic. This work was funded by a Project Grant from the 2019-20 Establishment Grant (Research Nova Scotia), the CIHR Project grant PJT-169179, a CIHR Catalyst grant Rare Diseases: Models & Mechanisms Network and NSERC Discovery Grant RGPIN-2019-04083 to Francesca Di Cara. Dania Shikara and Eden Bishop were funded by NSERC URSA Summer 2021, and Nathan Barton was funded by an Imhotep’s Legacy Academy Summer Scholarship and CIHR-SSRP Summer 2023.' article_number: '9582' article_processing_charge: Yes article_type: original author: - first_name: Dania full_name: Shikara, Dania last_name: Shikara - first_name: Eden full_name: Bishop, Eden last_name: Bishop - first_name: Nathan full_name: Barton, Nathan last_name: Barton - first_name: Stephanie full_name: Makdissi, Stephanie last_name: Makdissi - first_name: Senthilkumar full_name: Kailasam, Senthilkumar last_name: Kailasam - first_name: Attila full_name: György, Attila id: 3BCEDBE0-F248-11E8-B48F-1D18A9856A87 last_name: György orcid: 0000-0002-1819-198X - first_name: Daria E full_name: Siekhaus, Daria E id: 3D224B9E-F248-11E8-B48F-1D18A9856A87 last_name: Siekhaus orcid: 0000-0001-8323-8353 - first_name: Maria Carla full_name: Borroto, Maria Carla last_name: Borroto - first_name: Philippe M. full_name: Campeau, Philippe M. last_name: Campeau - first_name: Linda full_name: Vong, Linda last_name: Vong - first_name: Chaim M. full_name: Roifman, Chaim M. last_name: Roifman - first_name: Brendon D. full_name: Parsons, Brendon D. last_name: Parsons - first_name: Francesca full_name: Di Cara, Francesca last_name: Di Cara citation: ama: Shikara D, Bishop E, Barton N, et al. The minor spliceosome component U4atac regulates JAK/STAT signaling to modulate hematopoiesis and immune responses in Drosophila melanogaster. Nature Communications. 2026;17. doi:10.1038/s41467-026-75539-y apa: Shikara, D., Bishop, E., Barton, N., Makdissi, S., Kailasam, S., György, A., … Di Cara, F. (2026). The minor spliceosome component U4atac regulates JAK/STAT signaling to modulate hematopoiesis and immune responses in Drosophila melanogaster. Nature Communications. Springer Nature. https://doi.org/10.1038/s41467-026-75539-y chicago: Shikara, Dania, Eden Bishop, Nathan Barton, Stephanie Makdissi, Senthilkumar Kailasam, Attila György, Daria E Siekhaus, et al. “The Minor Spliceosome Component U4atac Regulates JAK/STAT Signaling to Modulate Hematopoiesis and Immune Responses in Drosophila Melanogaster.” Nature Communications. Springer Nature, 2026. https://doi.org/10.1038/s41467-026-75539-y. ieee: D. Shikara et al., “The minor spliceosome component U4atac regulates JAK/STAT signaling to modulate hematopoiesis and immune responses in Drosophila melanogaster,” Nature Communications, vol. 17. Springer Nature, 2026. ista: Shikara D, Bishop E, Barton N, Makdissi S, Kailasam S, György A, Siekhaus DE, Borroto MC, Campeau PM, Vong L, Roifman CM, Parsons BD, Di Cara F. 2026. The minor spliceosome component U4atac regulates JAK/STAT signaling to modulate hematopoiesis and immune responses in Drosophila melanogaster. Nature Communications. 17, 9582. mla: Shikara, Dania, et al. “The Minor Spliceosome Component U4atac Regulates JAK/STAT Signaling to Modulate Hematopoiesis and Immune Responses in Drosophila Melanogaster.” Nature Communications, vol. 17, 9582, Springer Nature, 2026, doi:10.1038/s41467-026-75539-y. short: D. Shikara, E. Bishop, N. Barton, S. Makdissi, S. Kailasam, A. György, D.E. Siekhaus, M.C. Borroto, P.M. Campeau, L. Vong, C.M. Roifman, B.D. Parsons, F. Di Cara, Nature Communications 17 (2026). das_tickbox: '1' dataavailabilitystatement: 'The original RNA-seq DATA have been deposited at NCBI and are publicly available as of the date of publication under the accession numbers NCBI Bioproject Number: PRJNA1329293. All data are included in the Supplementary Information or available from the authors, as are unique reagents used in this Article. The raw numbers for charts and graphs are available in the Source Data file whenever possible Source data are provided in this paper.' date_created: 2026-09-13T22:01:51Z date_published: 2026-09-08T00:00:00Z date_updated: 2026-09-16T08:48:22Z day: '08' ddc: - '570' department: - _id: DaSi doi: 10.1038/s41467-026-75539-y external_id: pmid: - '42463491' file: - access_level: open_access checksum: 7a1036697767e6b948d009ff57b1e1b6 content_type: application/pdf creator: dernst date_created: 2026-09-16T08:43:27Z date_updated: 2026-09-16T08:43:27Z file_id: '22934' file_name: 2026_NatureComm_Shikara.pdf file_size: 5784038 relation: main_file success: 1 file_date_updated: 2026-09-16T08:43:27Z fulldoi: https://doi.org/10.1038/s41467-026-75539-y has_accepted_license: '1' intvolume: ' 17' language: - iso: eng license: https://creativecommons.org/licenses/by-nc-nd/4.0/ month: '09' oa: 1 oa_version: Published Version pmid: 1 publication: Nature Communications publication_identifier: eissn: - 2041-1723 publication_status: published publisher: Springer Nature quality_controlled: '1' researchdata_availability: yes scopus_import: '1' status: public supplementarymaterial: yes title: The minor spliceosome component U4atac regulates JAK/STAT signaling to modulate hematopoiesis and immune responses in Drosophila melanogaster tmp: image: /images/cc_by_nc_nd.png legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) short: CC BY-NC-ND (4.0) type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 17 year: '2026' ... --- OA_embargo: '18' OA_place: publisher _id: '22775' acknowledged_ssus: - _id: Bio - _id: PreCl - _id: M-Shop - _id: LifeSc alternative_title: - ISTA Thesis article_processing_charge: No author: - first_name: Silvia full_name: Jamrichova, Silvia id: F0EA6804-AA27-11E9-8613-C0F7E5697425 last_name: Jamrichova orcid: 0009-0003-9929-8221 citation: ama: Jamrichova S. Timing and strength of synaptic transmission at hippocampal mossy fiber synapses in mice and humans. 2026. doi:10.15479/AT-ISTA-22775 apa: Jamrichova, S. (2026). Timing and strength of synaptic transmission at hippocampal mossy fiber synapses in mice and humans. Institute of Science and Technology Austria. https://doi.org/10.15479/AT-ISTA-22775 chicago: Jamrichova, Silvia. “Timing and Strength of Synaptic Transmission at Hippocampal Mossy Fiber Synapses in Mice and Humans.” Institute of Science and Technology Austria, 2026. https://doi.org/10.15479/AT-ISTA-22775. ieee: S. Jamrichova, “Timing and strength of synaptic transmission at hippocampal mossy fiber synapses in mice and humans,” Institute of Science and Technology Austria, 2026. ista: Jamrichova S. 2026. Timing and strength of synaptic transmission at hippocampal mossy fiber synapses in mice and humans. Institute of Science and Technology Austria. mla: Jamrichova, Silvia. Timing and Strength of Synaptic Transmission at Hippocampal Mossy Fiber Synapses in Mice and Humans. Institute of Science and Technology Austria, 2026, doi:10.15479/AT-ISTA-22775. short: S. Jamrichova, Timing and Strength of Synaptic Transmission at Hippocampal Mossy Fiber Synapses in Mice and Humans, Institute of Science and Technology Austria, 2026. corr_author: '1' date_created: 2026-09-03T08:06:58Z date_published: 2026-09-03T00:00:00Z date_updated: 2026-09-16T08:13:41Z day: '03' ddc: - '570' degree_awarded: PhD department: - _id: GradSch - _id: PeJo doi: 10.15479/AT-ISTA-22775 doi_confirm: '1' ec_funded: 1 file: - access_level: closed checksum: d9a6fd39a0b6343c4473901f9323f127 content_type: application/pdf creator: cchlebak date_created: 2026-09-08T09:01:22Z date_updated: 2026-09-08T09:01:22Z embargo: 2028-03-08 embargo_to: open_access file_id: '22850' file_name: 2026_Jamrichova_Silvia_Thesis.pdf file_size: 8968078 relation: main_file - access_level: closed checksum: 02b728c9157f88e392b69e94877889f0 content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document creator: cchlebak date_created: 2026-09-08T09:02:52Z date_updated: 2026-09-08T09:02:52Z file_id: '22851' file_name: 2026_Jamrichova_Silvia_Thesis.docx file_size: 17338630 relation: source_file file_date_updated: 2026-09-08T09:02:52Z fulldoi: https://doi.org/10.15479/AT-ISTA-22775 has_accepted_license: '1' language: - iso: eng month: '09' oa_version: Published Version page: '153' project: - _id: 25B7EB9E-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '692692' name: Biophysics and circuit function of a giant cortical glutamatergic synapse - _id: e62b56fe-ab3c-11f0-94c7-d181dd352b3b grant_number: '101199096' name: Synaptic mechanisms of engram storage and retrieval in CA3 hippocampal microcircuits - _id: bd88be38-d553-11ed-ba76-81d5a70a6ef5 grant_number: P36232 name: Mechanisms of GABA release in hippocampal circuits - _id: 8d9195e9-16d5-11f0-9cad-d075be887a1e grant_number: PAT 4178023 name: Synaptic networks of human brain - _id: 25C5A090-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: Z00312 name: Synaptic communication in neuronal microcircuits - _id: 0a6c8641-b036-11f1-bacf-e4eec62b5bb4 grant_number: COE16 name: Neuronal circuits in health and disease (Jonas) publication_identifier: isbn: - 978-3-99078-085-5 issn: - 2663-337X publication_status: published publisher: Institute of Science and Technology Austria researchdata_availability: upon request status: public supervisor: - first_name: Peter M full_name: Jonas, Peter M id: 353C1B58-F248-11E8-B48F-1D18A9856A87 last_name: Jonas orcid: 0000-0001-5001-4804 supplementarymaterial: no title: Timing and strength of synaptic transmission at hippocampal mossy fiber synapses in mice and humans tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: dissertation user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9 year: '2026' ... --- OA_place: publisher OA_type: gold _id: '22915' abstract: - lang: eng text: "The element distinctness problem takes as input a list I of n values from a totally ordered universe, where pairwise comparisons between values are allowed, and the goal is to decide whether I contains any duplicates. It is a well-studied problem with a classical worst-case Ω(n log n) comparison-based lower bound by Fredman [TCS'76]. At first glance, this lower bound appears to rule out any algorithm more efficient than the naive approach of sorting I and comparing adjacent elements. However, upon closer inspection, the Ω(n log n) bound is overly pessimistic. For instance, if I contains n/2 identical elements, a median-finding algorithm will, regardless of the input order, find a duplicate in linear time. This raises a natural question: Are there comparison-based lower bounds for element distinctness that are sensitive to the amount of duplicates in the input instance?\r\nTo address this question, we derive instance-specific lower bounds. For any input instance I, we represent the combinatorial structure of the duplicates in I by an undirected graph G(I) that connects identical elements. Each such graph G is a union of cliques, and we study algorithms by their worst-case running time over all inputs I' with G(I') ≅ G. We establish an adversarial lower bound showing that, for any deterministic algorithm \U0001D49C, there exists a graph G and an algorithm \U0001D49C' that, for all inputs I with G(I) ≅ G, is a factor O(log log n) faster than \U0001D49C. Consequently, no deterministic algorithm can be o(log log n)-competitive for all graphs G. We complement this with an O(log log n)-competitive deterministic algorithm, thereby obtaining tight bounds for element distinctness that go beyond classical worst-case analysis. Subsequently, we study the related problem of set intersection. We show that no deterministic set intersection algorithm can be o(log n)-competitive, and provide an O(log n)-competitive deterministic algorithm. We find it interesting and surprising to discover tight O(log log n)-competitive bounds for element distinctness. Moreover, we find the separation between element distinctness and the set intersection problem unexpected." acknowledgement: "Ivor van der Hoog, Eva Rotenberg, and Daniel Rutschmann thank the VILLUM Foundation\r\ngrant (VIL37507) “Efficient Recomputations for Changeful Problems” for supporting this work.\r\nDaniel Rutschmann is supported by the European Research Council (ERC) under the European\r\nUnion’s Horizon 2020 research and innovation programme (No. 101019564) " alternative_title: - LIPIcs article_number: '101' article_processing_charge: Yes arxiv: 1 author: - first_name: Ivor full_name: Van Der Hoog, Ivor last_name: Van Der Hoog - first_name: Eva full_name: Rotenberg, Eva last_name: Rotenberg - first_name: Daniel P full_name: Rutschmann, Daniel P id: 7397d908-b582-11f0-bf73-88b902e86527 last_name: Rutschmann citation: ama: 'Van Der Hoog I, Rotenberg E, Rutschmann DP. Tight Better-Than-Worst-Case bounds for element distinctness and set intersection. In: 34th Annual European Symposium on Algorithms. Vol 388. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2026. doi:10.4230/LIPIcs.ESA.2026.101' apa: 'Van Der Hoog, I., Rotenberg, E., & Rutschmann, D. P. (2026). Tight Better-Than-Worst-Case bounds for element distinctness and set intersection. In 34th Annual European Symposium on Algorithms (Vol. 388). L’Aquila, Italy: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPIcs.ESA.2026.101' chicago: Van Der Hoog, Ivor, Eva Rotenberg, and Daniel P Rutschmann. “Tight Better-Than-Worst-Case Bounds for Element Distinctness and Set Intersection.” In 34th Annual European Symposium on Algorithms, Vol. 388. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2026. https://doi.org/10.4230/LIPIcs.ESA.2026.101. ieee: I. Van Der Hoog, E. Rotenberg, and D. P. Rutschmann, “Tight Better-Than-Worst-Case bounds for element distinctness and set intersection,” in 34th Annual European Symposium on Algorithms, L’Aquila, Italy, 2026, vol. 388. ista: 'Van Der Hoog I, Rotenberg E, Rutschmann DP. 2026. Tight Better-Than-Worst-Case bounds for element distinctness and set intersection. 34th Annual European Symposium on Algorithms. ESA: European Symposium on Algorithms, LIPIcs, vol. 388, 101.' mla: Van Der Hoog, Ivor, et al. “Tight Better-Than-Worst-Case Bounds for Element Distinctness and Set Intersection.” 34th Annual European Symposium on Algorithms, vol. 388, 101, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2026, doi:10.4230/LIPIcs.ESA.2026.101. short: I. Van Der Hoog, E. Rotenberg, D.P. Rutschmann, in:, 34th Annual European Symposium on Algorithms, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2026. conference: end_date: 2026-09-04 location: L’Aquila, Italy name: 'ESA: European Symposium on Algorithms' start_date: 2026-08-31 corr_author: '1' das_tickbox: '0' date_created: 2026-09-13T22:01:52Z date_published: 2026-08-25T00:00:00Z date_updated: 2026-09-16T09:21:35Z day: '25' ddc: - '000' department: - _id: MoHe doi: 10.4230/LIPIcs.ESA.2026.101 ec_funded: 1 external_id: arxiv: - '2511.02954' file: - access_level: open_access checksum: c552853bfa37e4b9a0f060107e464ed0 content_type: application/pdf creator: dernst date_created: 2026-09-16T09:20:49Z date_updated: 2026-09-16T09:20:49Z file_id: '22937' file_name: 2026_LIPIcsESA_vanderHoog.pdf file_size: 892322 relation: main_file success: 1 file_date_updated: 2026-09-16T09:20:49Z fulldoi: https://doi.org/10.4230/LIPIcs.ESA.2026.101 has_accepted_license: '1' intvolume: ' 388' keyword: - Comparison-based analysis - set intersection - universal optimality language: - iso: eng month: '08' oa: 1 oa_version: Published Version project: - _id: bd9ca328-d553-11ed-ba76-dc4f890cfe62 call_identifier: H2020 grant_number: '101019564' name: The design and evaluation of modern fully dynamic data structures publication: 34th Annual European Symposium on Algorithms publication_identifier: isbn: - '9783959774451' issn: - 1868-8969 publication_status: published publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik quality_controlled: '1' researchdata_availability: no scopus_import: '1' status: public supplementarymaterial: yes title: Tight Better-Than-Worst-Case bounds for element distinctness and set intersection tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 388 year: '2026' ... --- OA_place: publisher OA_type: hybrid _id: '22913' abstract: - lang: eng text: The medial habenula (MHb) is implicated in regulating emotional responses to aversive events. Studies in zebrafish have identified a remarkable morphological left–right asymmetry in the dorsal habenula (zebrafish equivalent of mammalian MHb)-interpeduncular nucleus (IPN) pathway and its asymmetrical roles in behavior. However, there is little evidence for structural or functional lateralization in the mammalian MHb-IPN pathway. Here, we investigated the synaptic properties of left- and right-MHb afferents to the IPN and their roles in the expression of conditioned fear in mice. We found that each IPN neuron receives inputs from both left and right MHb, but the left MHb-originating synapses exhibit lower release probability and higher γ-aminobutyric acid type B receptor (GABABR)-mediated potentiation compared to the right MHb-originating synapses. Interestingly, these asymmetrical properties persist in the inversus visceral mutant mice with normal internal organ laterality (situs solitus), but nearly disappear in those with reversed internal organ laterality (situs inversus). Behaviorally, chemogenetic inhibition of cholinergic neurons and conditional deletion of GABABR in the left, but not the right, MHb significantly attenuated cue-dependent fear recall. Our results demonstrate functional asymmetry of the MHb under partial influence of the nodal flow in mice, revealing a predominant role of GABABR-mediated signaling in the left MHb-IPN pathway in modulating fear memories. These findings suggest that lateralized MHb pathways could represent a fundamental principle in the neural regulation of emotion across species but that they develop differently in zebrafish and mice. acknowledged_ssus: - _id: M-Shop - _id: PreCl acknowledgement: We thank Bernhard Bettler for GABAB1 floxed mice. This project has received funding from the Austrian Science Fund (10.55776/PAT5720324) to R.S., and the Marie Skłodowska-Curie Grant Agreement No. 665385 to C.Ö. We thank Todor Asenov from the ISTA machine shop for preparing the custom part and the ISTA preclinical facility for animal care. SI Appendix, Fig. S7 was created in BioRender under the following license [Onal, C.(2026) https://BioRender.com/wuyvshe]. For open access purposes, the author has applied a CC BY-NC-ND public copyright license to any author-accepted manuscript version arising from this submission. article_number: e2536560123 article_processing_charge: Yes (in subscription journal) article_type: original author: - first_name: Hüseyin C full_name: Önal, Hüseyin C id: 4659D740-F248-11E8-B48F-1D18A9856A87 last_name: Önal orcid: 0000-0002-2771-2011 - first_name: Peter full_name: Koppensteiner, Peter id: 3B8B25A8-F248-11E8-B48F-1D18A9856A87 last_name: Koppensteiner orcid: 0000-0002-3509-1948 - first_name: Mary W full_name: Muhia, Mary W id: ab7ed20f-09f7-11eb-909c-d5d0b443ee9d last_name: Muhia - first_name: Elodie full_name: Le Monnier, Elodie id: 3B59276A-F248-11E8-B48F-1D18A9856A87 last_name: Le Monnier - first_name: Ryuichi full_name: Shigemoto, Ryuichi id: 499F3ABC-F248-11E8-B48F-1D18A9856A87 last_name: Shigemoto orcid: 0000-0001-8761-9444 citation: ama: Önal C, Koppensteiner P, Muhia MW, Le Monnier E, Shigemoto R. Asymmetrical modulation of fear expression via GABAB receptors in the mouse medial habenula. Proceedings of the National Academy of Sciences of the United States of America. 2026;123(36). doi:10.1073/pnas.2536560123 apa: Önal, C., Koppensteiner, P., Muhia, M. W., Le Monnier, E., & Shigemoto, R. (2026). Asymmetrical modulation of fear expression via GABAB receptors in the mouse medial habenula. Proceedings of the National Academy of Sciences of the United States of America. National Academy of Sciences. https://doi.org/10.1073/pnas.2536560123 chicago: Önal, Cihan, Peter Koppensteiner, Mary W Muhia, Elodie Le Monnier, and Ryuichi Shigemoto. “Asymmetrical Modulation of Fear Expression via GABAB Receptors in the Mouse Medial Habenula.” Proceedings of the National Academy of Sciences of the United States of America. National Academy of Sciences, 2026. https://doi.org/10.1073/pnas.2536560123. ieee: C. Önal, P. Koppensteiner, M. W. Muhia, E. Le Monnier, and R. Shigemoto, “Asymmetrical modulation of fear expression via GABAB receptors in the mouse medial habenula,” Proceedings of the National Academy of Sciences of the United States of America, vol. 123, no. 36. National Academy of Sciences, 2026. ista: Önal C, Koppensteiner P, Muhia MW, Le Monnier E, Shigemoto R. 2026. Asymmetrical modulation of fear expression via GABAB receptors in the mouse medial habenula. Proceedings of the National Academy of Sciences of the United States of America. 123(36), e2536560123. mla: Önal, Cihan, et al. “Asymmetrical Modulation of Fear Expression via GABAB Receptors in the Mouse Medial Habenula.” Proceedings of the National Academy of Sciences of the United States of America, vol. 123, no. 36, e2536560123, National Academy of Sciences, 2026, doi:10.1073/pnas.2536560123. short: C. Önal, P. Koppensteiner, M.W. Muhia, E. Le Monnier, R. Shigemoto, Proceedings of the National Academy of Sciences of the United States of America 123 (2026). corr_author: '1' das_tickbox: '1' dataavailabilitystatement: All numerical data regarding electrophysiological recordings, calcium imaging, image analysis and behavioral tracking included in the article and/or SI Appendix have been deposited and are publicly available at ISTA REx (https://doi.org/10.15479/AT-ISTA-22704). date_created: 2026-09-13T22:01:52Z date_published: 2026-09-08T00:00:00Z date_updated: 2026-09-16T09:55:16Z day: '08' ddc: - '570' department: - _id: RySh - _id: PreCl doi: 10.1073/pnas.2536560123 ec_funded: 1 external_id: pmid: - '42673459' file: - access_level: open_access checksum: 8efe98c02ba79b9a3d76b7d6c1edbfbc content_type: application/pdf creator: dernst date_created: 2026-09-16T09:09:58Z date_updated: 2026-09-16T09:09:58Z file_id: '22936' file_name: 2026_PNAS_Oenal.pdf file_size: 7496942 relation: main_file success: 1 file_date_updated: 2026-09-16T09:09:58Z fulldoi: https://doi.org/10.1073/pnas.2536560123 has_accepted_license: '1' intvolume: ' 123' issue: '36' keyword: - medial habenula - GABAB receptor - asymmetry - fear conditioning - mouse language: - iso: eng month: '09' oa: 1 oa_version: Published Version pmid: 1 project: - _id: 92503f6e-16d5-11f0-9cad-8c571927f3b7 grant_number: PAT 5720324 name: New regime of presynaptic release regulation - _id: 2564DBCA-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '665385' name: International IST Doctoral Program publication: Proceedings of the National Academy of Sciences of the United States of America publication_identifier: eissn: - 1091-6490 publication_status: published publisher: National Academy of Sciences quality_controlled: '1' related_material: record: - id: '22704' relation: research_data status: public researchdata_availability: yes scopus_import: '1' status: public supplementarymaterial: yes title: Asymmetrical modulation of fear expression via GABAB receptors in the mouse medial habenula tmp: image: /images/cc_by_nc_nd.png legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) short: CC BY-NC-ND (4.0) type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 123 year: '2026' ... --- OA_place: repository _id: '22704' abstract: - lang: eng text: "The medial habenula (MHb) is implicated in regulating emotional responses to aversive events. Studies in zebrafish have identified a remarkable morphological left–right asymmetry in the dorsal habenula (zebrafish equivalent of mammalian MHb)-interpeduncular nucleus (IPN) pathway and its asymmetrical roles in behavior. However, there is little evidence for structural or functional lateralization in the mammalian MHb-IPN pathway. Here, we investigated the synaptic properties of left- and right-MHb afferents to the IPN and their roles in the expression of conditioned fear in mice. We found that each IPN neuron receives inputs from both left and right MHb, but the left MHb-originating synapses exhibit lower release probability and higher γ-aminobutyric acid type B receptor (GABABR)-mediated potentiation compared to the right MHb-originating synapses. Interestingly, these asymmetrical properties persist in the inversus visceral mutant mice with normal internal organ laterality (situs solitus), but nearly disappear in those with reversed internal organ laterality (situs inversus). Behaviorally, chemogenetic inhibition of cholinergic neurons and conditional deletion of GABABR in the left, but not the right, MHb significantly attenuated cue-dependent fear recall. Our results demonstrate functional asymmetry of the MHb under partial influence of the nodal flow in mice, revealing a predominant role of GABABR-mediated signaling in the left MHb-IPN pathway in modulating fear memories. These findings suggest that lateralized MHb pathways could represent a fundamental principle in the neural regulation of emotion across species but that they develop differently in zebrafish and mice.\r\n" acknowledged_ssus: - _id: M-Shop - _id: PreCl article_processing_charge: No author: - first_name: Elodie full_name: Le Monnier, Elodie id: 3B59276A-F248-11E8-B48F-1D18A9856A87 last_name: Le Monnier - first_name: Cihan full_name: Önal, Cihan last_name: Önal citation: ama: Le Monnier E, Önal C. Asymmetrical modulation of fear expression via GABAB receptors in the mouse medial habenula. 2026. doi:10.15479/AT-ISTA-22704 apa: Le Monnier, E., & Önal, C. (2026). Asymmetrical modulation of fear expression via GABAB receptors in the mouse medial habenula. Institute of Science and Technology Austria. https://doi.org/10.15479/AT-ISTA-22704 chicago: Le Monnier, Elodie, and Cihan Önal. “Asymmetrical Modulation of Fear Expression via GABAB Receptors in the Mouse Medial Habenula.” Institute of Science and Technology Austria, 2026. https://doi.org/10.15479/AT-ISTA-22704. ieee: E. Le Monnier and C. Önal, “Asymmetrical modulation of fear expression via GABAB receptors in the mouse medial habenula.” Institute of Science and Technology Austria, 2026. ista: Le Monnier E, Önal C. 2026. Asymmetrical modulation of fear expression via GABAB receptors in the mouse medial habenula, Institute of Science and Technology Austria, 10.15479/AT-ISTA-22704. mla: Le Monnier, Elodie, and Cihan Önal. Asymmetrical Modulation of Fear Expression via GABAB Receptors in the Mouse Medial Habenula. Institute of Science and Technology Austria, 2026, doi:10.15479/AT-ISTA-22704. short: E. Le Monnier, C. Önal, (2026). corr_author: '1' date_created: 2026-08-13T12:20:08Z date_published: 2026-08-13T00:00:00Z date_updated: 2026-09-16T09:55:15Z day: '13' department: - _id: RySh doi: 10.15479/AT-ISTA-22704 doi_confirm: '1' ec_funded: 1 file: - access_level: open_access checksum: 7742bb211a43bb87c2b5ce7bda3068ae content_type: application/x-zip-compressed creator: elemonni date_created: 2026-08-13T12:07:53Z date_updated: 2026-08-13T12:07:53Z file_id: '22705' file_name: Behavior.zip file_size: 162086 relation: main_file success: 1 - access_level: open_access checksum: a162eb6103a770d94536374e02934fcf content_type: application/x-zip-compressed creator: elemonni date_created: 2026-08-13T12:07:57Z date_updated: 2026-08-13T12:07:57Z file_id: '22706' file_name: image_analysis.zip file_size: 6643 relation: main_file success: 1 - access_level: open_access checksum: 608aaf395bba5fd9cf62d8c8940d63aa content_type: application/x-zip-compressed creator: elemonni date_created: 2026-08-13T12:07:59Z date_updated: 2026-08-13T12:07:59Z file_id: '22707' file_name: Recordings.zip file_size: 1193016 relation: main_file success: 1 - access_level: open_access checksum: 2389ebd71238bd7de03d20504a8cf962 content_type: text/plain creator: elemonni date_created: 2026-08-13T13:06:29Z date_updated: 2026-08-13T13:06:29Z file_id: '22708' file_name: README.txt file_size: 246 relation: main_file success: 1 file_date_updated: 2026-08-13T13:06:29Z fulldoi: https://doi.org/10.15479/AT-ISTA-22704 has_accepted_license: '1' month: '08' oa: 1 oa_version: None project: - _id: 2564DBCA-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '665385' name: International IST Doctoral Program - _id: 92503f6e-16d5-11f0-9cad-8c571927f3b7 grant_number: PAT 5720324 name: New regime of presynaptic release regulation publisher: Institute of Science and Technology Austria related_material: record: - id: '22913' relation: used_in_publication status: public status: public title: Asymmetrical modulation of fear expression via GABAB receptors in the mouse medial habenula tmp: image: /images/cc_by_nc_nd.png legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) short: CC BY-NC-ND (4.0) type: research_data user_id: 68b8ca59-c5b3-11ee-8790-cd641c68093d year: '2026' ... --- OA_place: repository OA_type: green _id: '22923' abstract: - lang: eng text: "We study the sensitivity of the eigenvectors of random matrices, showing that even small perturbations make the eigenvectors almost orthogonal. More precisely, we consider two deformed Wigner matrices \U0001D44A +\U0001D4371, \U0001D44A +\U0001D4372 and show that their bulk eigenvectors become asymptotically orthogonal as soon as Tr⁡(\U0001D4371−\U0001D4372)2 ≫1, or their respective energies are separated on a scale much bigger than the local eigenvalue spacing. Furthermore, we show that quadratic forms of eigenvectors of \U0001D44A +\U0001D4371, \U0001D44A +\U0001D4372 with any deterministic matrix \U0001D434 ∈\U0001D402\U0001D441×\U0001D441 in a specific subspace of codimension one are of size \U0001D441−1/2. This proves a generalization of the eigenstate thermalization hypothesis to eigenvectors belonging to two different spectral families." acknowledgement: L. Erdős, J. Henheik and O. Kolupaiev were supported by the ERC Advanced Grant “RMTBeyond” No. 101020331. G. Cipolloni is partially supported by the MUR Excellence Department Project MatMod@TOV awarded to the Department of Mathematics, University of Rome Tor Vergata, CUP E83C18000100006. article_processing_charge: No article_type: original arxiv: 1 author: - first_name: Giorgio full_name: Cipolloni, Giorgio id: 42198EFA-F248-11E8-B48F-1D18A9856A87 last_name: Cipolloni orcid: 0000-0002-4901-7992 - first_name: László full_name: Erdös, László id: 4DBD5372-F248-11E8-B48F-1D18A9856A87 last_name: Erdös orcid: 0000-0001-5366-9603 - first_name: Sven Joscha full_name: Henheik, Sven Joscha id: 31d731d7-d235-11ea-ad11-b50331c8d7fb last_name: Henheik orcid: 0000-0003-1106-327X - first_name: Oleksii full_name: Kolupaiev, Oleksii id: 149b70d4-896a-11ed-bdf8-8c63fd44ca61 last_name: Kolupaiev orcid: 0000-0003-1491-4623 citation: ama: Cipolloni G, Erdös L, Henheik SJ, Kolupaiev O. Eigenvector decorrelation for random matrices. Annals of Applied Probability. 2026;36(4):3707-3756. doi:10.1214/26-AAP2318 apa: Cipolloni, G., Erdös, L., Henheik, S. J., & Kolupaiev, O. (2026). Eigenvector decorrelation for random matrices. Annals of Applied Probability. Institute of Mathematical Statistics. https://doi.org/10.1214/26-AAP2318 chicago: Cipolloni, Giorgio, László Erdös, Sven Joscha Henheik, and Oleksii Kolupaiev. “Eigenvector Decorrelation for Random Matrices.” Annals of Applied Probability. Institute of Mathematical Statistics, 2026. https://doi.org/10.1214/26-AAP2318. ieee: G. Cipolloni, L. Erdös, S. J. Henheik, and O. Kolupaiev, “Eigenvector decorrelation for random matrices,” Annals of Applied Probability, vol. 36, no. 4. Institute of Mathematical Statistics, pp. 3707–3756, 2026. ista: Cipolloni G, Erdös L, Henheik SJ, Kolupaiev O. 2026. Eigenvector decorrelation for random matrices. Annals of Applied Probability. 36(4), 3707–3756. mla: Cipolloni, Giorgio, et al. “Eigenvector Decorrelation for Random Matrices.” Annals of Applied Probability, vol. 36, no. 4, Institute of Mathematical Statistics, 2026, pp. 3707–56, doi:10.1214/26-AAP2318. short: G. Cipolloni, L. Erdös, S.J. Henheik, O. Kolupaiev, Annals of Applied Probability 36 (2026) 3707–3756. corr_author: '1' das_tickbox: '0' date_created: 2026-09-13T22:01:54Z date_published: 2026-08-01T00:00:00Z date_updated: 2026-09-16T10:00:54Z day: '01' department: - _id: LaEr - _id: GradSch doi: 10.1214/26-AAP2318 ec_funded: 1 external_id: arxiv: - '2410.10718' fulldoi: https://doi.org/10.1214/26-AAP2318 intvolume: ' 36' issue: '4' keyword: - characteristic flow - Davis–Kahan theorem - Eigenstate thermalization - Eigenvector perturbation theory - Local law - zigzag strategy language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.48550/arXiv.2410.10718 mathsc: - 60B20 - 82C10 month: '08' oa: 1 oa_version: Preprint page: 3707-3756 project: - _id: 62796744-2b32-11ec-9570-940b20777f1d call_identifier: H2020 grant_number: '101020331' name: Random matrices beyond Wigner-Dyson-Mehta publication: Annals of Applied Probability publication_identifier: issn: - 1050-5164 publication_status: published publisher: Institute of Mathematical Statistics quality_controlled: '1' related_material: record: - id: '19546' relation: earlier_version status: public researchdata_availability: no scopus_import: '1' status: public supplementarymaterial: yes title: Eigenvector decorrelation for random matrices type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 36 year: '2026' ... --- OA_place: publisher OA_type: hybrid _id: '22926' abstract: - lang: eng text: Adeno-associated viruses (AAVs) provide a versatile tool for labeling neurons in the Xenopus central nervous system across developmental stages. AAV-mediated transgene expression is long-lasting and stable, enabling robust labeling of neuronal populations without genomic integration and without the need to generate transgenic lines. The choice of AAV capsid and promoter can restrict expression to a population of interest, and depending on the route and timing of delivery, AAVs can selectively target either progenitor-derived neuronal cohorts or mature neuronal populations. Here, we have outlined two labeling strategies. First, intraventricular injections in tadpoles transduce neural progenitor cells lining the ventricular system, resulting in cohort-based labeling of neurons as they differentiate during development. Second, direct intraparenchymal injections in post-metamorphic frogs enable spatially restricted labeling and anterograde or retrograde tracing of connectivity within defined brain regions. Together, these approaches provide selective access to developing and mature neural circuits in X. laevis, supporting applications ranging from anatomical tracing to functional imaging and manipulation of neural circuits. acknowledgement: This work was supported by a Horizon Europe ERC Starting Grant Number 101041551 (L.B.S. and D.V.), FTI Strategy Lower Austria Dissertation Grant Number FT121-D-046 (D.V.), NSF IOS Grant Number 2110086 (L.B.S. and D.V.), Special Research Program (SFB) of the Austrian Science Fund (FWF) F7814-B (L.B.S.), and Austrian Science Fund (FWF) 10.55776/COE16 (L.B.S. and D.V.). alternative_title: - Methods in Molecular Biology article_processing_charge: Yes (in subscription journal) author: - first_name: David full_name: Vijatovic, David id: cf391e77-ec3c-11ea-a124-d69323410b58 last_name: Vijatovic orcid: 0000-0002-5494-0941 - first_name: Lora Beatrice Jaeger full_name: Sweeney, Lora Beatrice Jaeger id: 56BE8254-C4F0-11E9-8E45-0B23E6697425 last_name: Sweeney orcid: 0000-0001-9242-5601 citation: ama: 'Vijatovic D, Sweeney LB. Adeno-Associated Virus (AAV) for tracking neural development and connectivity in Xenopus. In: Beck CW, ed. Xenopus. Vol 3049. MIMB. Springer; 2026:219-229. doi:10.1007/978-1-0716-5360-9_9' apa: Vijatovic, D., & Sweeney, L. B. (2026). Adeno-Associated Virus (AAV) for tracking neural development and connectivity in Xenopus. In C. W. Beck (Ed.), Xenopus (Vol. 3049, pp. 219–229). Springer. https://doi.org/10.1007/978-1-0716-5360-9_9 chicago: Vijatovic, David, and Lora B. Sweeney. “Adeno-Associated Virus (AAV) for Tracking Neural Development and Connectivity in Xenopus.” In Xenopus, edited by Caroline W. Beck, 3049:219–29. MIMB. Springer, 2026. https://doi.org/10.1007/978-1-0716-5360-9_9. ieee: D. Vijatovic and L. B. Sweeney, “Adeno-Associated Virus (AAV) for tracking neural development and connectivity in Xenopus,” in Xenopus, vol. 3049, C. W. Beck, Ed. Springer, 2026, pp. 219–229. ista: 'Vijatovic D, Sweeney LB. 2026.Adeno-Associated Virus (AAV) for tracking neural development and connectivity in Xenopus. In: Xenopus. Methods in Molecular Biology, vol. 3049, 219–229.' mla: Vijatovic, David, and Lora B. Sweeney. “Adeno-Associated Virus (AAV) for Tracking Neural Development and Connectivity in Xenopus.” Xenopus, edited by Caroline W. Beck, vol. 3049, Springer, 2026, pp. 219–29, doi:10.1007/978-1-0716-5360-9_9. short: D. Vijatovic, L.B. Sweeney, in:, C.W. Beck (Ed.), Xenopus, Springer, 2026, pp. 219–229. corr_author: '1' das_tickbox: '0' date_created: 2026-09-13T22:01:56Z date_published: 2026-09-02T00:00:00Z date_updated: 2026-09-17T08:03:32Z day: '02' ddc: - '570' department: - _id: LoSw doi: 10.1007/978-1-0716-5360-9_9 editor: - first_name: Caroline W. full_name: Beck, Caroline W. last_name: Beck external_id: pmid: - '42681226' file: - access_level: open_access checksum: ea5af1374dd6820830773e0e96535ac0 content_type: application/pdf creator: dernst date_created: 2026-09-17T08:00:45Z date_updated: 2026-09-17T08:00:45Z file_id: '22939' file_name: 2026_MIMB_Vijatovic2.pdf file_size: 852042 relation: main_file success: 1 file_date_updated: 2026-09-17T08:00:45Z fulldoi: https://doi.org/10.1007/978-1-0716-5360-9_9 has_accepted_license: '1' intvolume: ' 3049' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1007/978-1-0716-5360-9_9 month: '09' oa: 1 oa_version: Published Version page: 219-229 pmid: 1 project: - _id: ebb66355-77a9-11ec-83b8-b8ac210a4dae grant_number: '101041551' name: Development and Evolution of Tetrapod Motor Circuits - _id: bd73af52-d553-11ed-ba76-912049f0ac7a grant_number: FTI21-D-046 name: Development of V1 interneuron diversity during swim-to-walk transition of Xenopus metamorphosis - _id: 8da85f50-16d5-11f0-9cad-eab8b0ff6c9e grant_number: F7814 name: 'Stem Cell Modulation in Neural Development and Regeneration/ P14-Swim-to-limb transition: cell type to connection diversity' - _id: cf428362-b037-11f1-b015-8277a8a2f63d grant_number: COE16 name: Neuronal circuits in health and disease (Sweeney) - _id: 34a02c70-11ca-11ed-8bc3-fbfd2c86c88f grant_number: 3(GG016346-01) name: Development of Viral Vectors for Amphibian Gene Delivery and Manipulation publication: Xenopus publication_identifier: eissn: - 1940-6029 publication_status: published publisher: Springer quality_controlled: '1' researchdata_availability: no scopus_import: '1' series_title: MIMB status: public supplementarymaterial: no title: Adeno-Associated Virus (AAV) for tracking neural development and connectivity in Xenopus tmp: image: /images/cc_by_nc_nd.png legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) short: CC BY-NC-ND (4.0) type: book_chapter user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 3049 year: '2026' ... --- OA_place: publisher OA_type: hybrid _id: '22925' abstract: - lang: eng text: Hybridization Chain Reaction (HCR) enables highly sensitive and multiplexed detection of mRNA with subcellular spatial resolution. It employs fluorophore-tagged DNA hairpins that self-assemble on target-bound probe pairs, amplifying the signal without enzymatic reactions. Here, we describe a protocol for performing HCR fluorescence in situ hybridization (FISH) on Xenopus tissue sections. We also outline a semi-automated image analysis pipeline that enables per-cell quantification of probe expression and co-localization. This method provides a robust and quantitative approach for visualizing gene expression patterns in situ. acknowledgement: "This work was supported by a Horizon Europe ERC Starting Grant\r\nNumber 101041551 (L.B.S., D.V., S.P.), Special Research Program\r\n(SFB) of the Austrian Science Fund (FWF) F7814-B (L.B.S., S.P.),\r\nAustrian Science Fund (FWF) 10.55776/COE16 (L.B.S.), FTI\r\nStrategy Lower Austria Dissertation Grant Number FT121-D-046\r\n(D.V.), and Austrian Academy of Sciences DOC Fellowship 27229\r\n(S.P.). We also thank the Imaging & Optics and Scientific Computing Facilities at ISTA for their support in developing the quantification pipeline." alternative_title: - Methods in Molecular Biology article_processing_charge: No author: - first_name: David full_name: Vijatovic, David id: cf391e77-ec3c-11ea-a124-d69323410b58 last_name: Vijatovic orcid: 0000-0002-5494-0941 - first_name: Stavros full_name: Papadopoulos, Stavros id: 40606b92-f128-11eb-9611-bf66a98cfa5c last_name: Papadopoulos - first_name: Marco full_name: Dalla Vecchia, Marco id: 02a7a869-ff06-11ed-a87f-86649d6077e5 last_name: Dalla Vecchia - first_name: Lora Beatrice Jaeger full_name: Sweeney, Lora Beatrice Jaeger id: 56BE8254-C4F0-11E9-8E45-0B23E6697425 last_name: Sweeney orcid: 0000-0001-9242-5601 citation: ama: 'Vijatovic D, Papadopoulos S, Dalla Vecchia M, Sweeney LB. Fluorescent in situ mRNA hybridization (FISH) using Hybridization Chain Reaction (HCR) in Xenopus cryosections. In: Beck CW, ed. Xenopus. Vol 3049. MIMB. Springer; 2026:245-259. doi:10.1007/978-1-0716-5360-9_11' apa: Vijatovic, D., Papadopoulos, S., Dalla Vecchia, M., & Sweeney, L. B. (2026). Fluorescent in situ mRNA hybridization (FISH) using Hybridization Chain Reaction (HCR) in Xenopus cryosections. In C. W. Beck (Ed.), Xenopus (Vol. 3049, pp. 245–259). Springer. https://doi.org/10.1007/978-1-0716-5360-9_11 chicago: Vijatovic, David, Stavros Papadopoulos, Marco Dalla Vecchia, and Lora B. Sweeney. “Fluorescent in Situ MRNA Hybridization (FISH) Using Hybridization Chain Reaction (HCR) in Xenopus Cryosections.” In Xenopus, edited by Caroline W. Beck, 3049:245–59. MIMB. Springer, 2026. https://doi.org/10.1007/978-1-0716-5360-9_11. ieee: D. Vijatovic, S. Papadopoulos, M. Dalla Vecchia, and L. B. Sweeney, “Fluorescent in situ mRNA hybridization (FISH) using Hybridization Chain Reaction (HCR) in Xenopus cryosections,” in Xenopus, vol. 3049, C. W. Beck, Ed. Springer, 2026, pp. 245–259. ista: 'Vijatovic D, Papadopoulos S, Dalla Vecchia M, Sweeney LB. 2026.Fluorescent in situ mRNA hybridization (FISH) using Hybridization Chain Reaction (HCR) in Xenopus cryosections. In: Xenopus. Methods in Molecular Biology, vol. 3049, 245–259.' mla: Vijatovic, David, et al. “Fluorescent in Situ MRNA Hybridization (FISH) Using Hybridization Chain Reaction (HCR) in Xenopus Cryosections.” Xenopus, edited by Caroline W. Beck, vol. 3049, Springer, 2026, pp. 245–59, doi:10.1007/978-1-0716-5360-9_11. short: D. Vijatovic, S. Papadopoulos, M. Dalla Vecchia, L.B. Sweeney, in:, C.W. Beck (Ed.), Xenopus, Springer, 2026, pp. 245–259. corr_author: '1' das_tickbox: '0' date_created: 2026-09-13T22:01:55Z date_published: 2026-09-02T00:00:00Z date_updated: 2026-09-17T07:31:16Z day: '02' ddc: - '570' department: - _id: LoSw - _id: GradSch - _id: IAS doi: 10.1007/978-1-0716-5360-9_11 editor: - first_name: Caroline W. full_name: Beck, Caroline W. last_name: Beck external_id: pmid: - '42681228' file: - access_level: open_access checksum: e7a075a9ee1b91d5824f8f2b9b1f3c9b content_type: application/pdf creator: dernst date_created: 2026-09-17T07:28:53Z date_updated: 2026-09-17T07:28:53Z file_id: '22938' file_name: 2026_MIMB_Vijatovic.pdf file_size: 1004024 relation: main_file success: 1 file_date_updated: 2026-09-17T07:28:53Z fulldoi: https://doi.org/10.1007/978-1-0716-5360-9_11 has_accepted_license: '1' intvolume: ' 3049' keyword: - mRNA FISH - Hybridization chain reaction - In situ hybridization - Fluorescence microscopy language: - iso: eng month: '09' oa: 1 oa_version: Published Version page: 245-259 pmid: 1 project: - _id: ebb66355-77a9-11ec-83b8-b8ac210a4dae grant_number: '101041551' name: Development and Evolution of Tetrapod Motor Circuits - _id: 8da85f50-16d5-11f0-9cad-eab8b0ff6c9e grant_number: F7814 name: 'Stem Cell Modulation in Neural Development and Regeneration/ P14-Swim-to-limb transition: cell type to connection diversity' - _id: cf428362-b037-11f1-b015-8277a8a2f63d grant_number: COE16 name: Neuronal circuits in health and disease (Sweeney) - _id: bd73af52-d553-11ed-ba76-912049f0ac7a grant_number: FTI21-D-046 name: Development of V1 interneuron diversity during swim-to-walk transition of Xenopus metamorphosis - _id: 907b765e-16d5-11f0-9cad-fef108a945b1 grant_number: '27229' name: 'A Tale of Two Circuits: Rostrocaudal spinal cord patterning during the swim-to-limb transition of Xenopus metamorphosis' publication: Xenopus publication_identifier: eissn: - 1940-6029 publication_status: published publisher: Springer quality_controlled: '1' researchdata_availability: no scopus_import: '1' series_title: MIMB status: public supplementarymaterial: no title: Fluorescent in situ mRNA hybridization (FISH) using Hybridization Chain Reaction (HCR) in Xenopus cryosections tmp: image: /images/cc_by_nc_nd.png legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) short: CC BY-NC-ND (4.0) type: book_chapter user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 3049 year: '2026' ... --- OA_place: publisher OA_type: hybrid _id: '22927' abstract: - lang: eng text: Auxin and calcium (Ca2+) are central plant signals that coordinate growth, development, and responses to environmental cues. Typically studied as largely parallel pathways, they are now increasingly recognized as interconnected networks whose activities converge at multiple regulatory levels. Recent advances in live imaging, biosensors, optogenetics, and structural approaches have revealed that auxin can rapidly trigger Ca2+ influx from the apoplast via TRANSPORT INHIBITOR RESPONSE1 (TIR1)/AUXIN-SIGNALING F-BOX (AFB)-dependent signaling mechanisms and Ca2+ channels, presumably involving cyclic nucleotides produced by TIR1/AFB auxin receptors. Conversely, Ca2+ signals arising from mechanosensing, wounding, and environmental stress can modulate auxin transport, signaling, and transcriptional outputs. Together, these discoveries highlight a dynamic, reciprocal signaling axis where Ca2+ acts both downstream and upstream of auxin to shape growth, development, tropisms, and regeneration. acknowledgement: The authors would like to acknowledge many colleagues whose valuable contributions to the field could not be included in this review due to space limitations and reference constraints. article_processing_charge: No article_type: original author: - first_name: Milan full_name: Zupunski, Milan id: f6a21fce-573e-11f0-a150-a8d96aee2539 last_name: Zupunski - first_name: Guido full_name: Grossmann, Guido last_name: Grossmann - first_name: Jiří full_name: Friml, Jiří id: 4159519E-F248-11E8-B48F-1D18A9856A87 last_name: Friml orcid: 0000-0002-8302-7596 citation: ama: 'Zupunski M, Grossmann G, Friml J. Decoding dialog: The auxin–calcium signaling crosstalk in plants. Trends in Plant Science. 2026. doi:10.1016/j.tplants.2026.08.002' apa: 'Zupunski, M., Grossmann, G., & Friml, J. (2026). Decoding dialog: The auxin–calcium signaling crosstalk in plants. Trends in Plant Science. Cell Press. https://doi.org/10.1016/j.tplants.2026.08.002' chicago: 'Zupunski, Milan, Guido Grossmann, and Jiří Friml. “Decoding Dialog: The Auxin–Calcium Signaling Crosstalk in Plants.” Trends in Plant Science. Cell Press, 2026. https://doi.org/10.1016/j.tplants.2026.08.002.' ieee: 'M. Zupunski, G. Grossmann, and J. Friml, “Decoding dialog: The auxin–calcium signaling crosstalk in plants,” Trends in Plant Science. Cell Press, 2026.' ista: 'Zupunski M, Grossmann G, Friml J. 2026. Decoding dialog: The auxin–calcium signaling crosstalk in plants. Trends in Plant Science.' mla: 'Zupunski, Milan, et al. “Decoding Dialog: The Auxin–Calcium Signaling Crosstalk in Plants.” Trends in Plant Science, Cell Press, 2026, doi:10.1016/j.tplants.2026.08.002.' short: M. Zupunski, G. Grossmann, J. Friml, Trends in Plant Science (2026). corr_author: '1' das_tickbox: '0' date_created: 2026-09-13T22:01:56Z date_published: 2026-09-04T00:00:00Z date_updated: 2026-09-17T07:42:27Z day: '04' ddc: - '580' department: - _id: JiFr doi: 10.1016/j.tplants.2026.08.002 external_id: pmid: - '42692943' fulldoi: https://doi.org/10.1016/j.tplants.2026.08.002 has_accepted_license: '1' keyword: - auxin - calcium - rapid signaling - crosstalk - growth regulation - cyclic nucleotides language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1016/j.tplants.2026.08.002 month: '09' oa: 1 oa_version: Published Version pmid: 1 publication: Trends in Plant Science publication_identifier: eissn: - 1878-4372 issn: - 1360-1385 publication_status: epub_ahead publisher: Cell Press quality_controlled: '1' researchdata_availability: no scopus_import: '1' status: public supplementarymaterial: no title: 'Decoding dialog: The auxin–calcium signaling crosstalk in plants' tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2026' ... --- OA_place: publisher OA_type: gold _id: '22914' abstract: - lang: eng text: "We present the first truly subquadratic time algorithm to compute diameter and eccentricities in real-weighted directed graphs with constant distance VC-dimension and strongly sublinear-sized balanced separators. For real-weighted K_h-minor-free digraphs, this runs in O(n^{2-1/(2h-2)} polylog(n)) time.\r\nPrior to this work, truly subquadratic time computation of diameter was only known for real-weighted planar graphs, while extensions to broader classes like minor-free graphs were restricted to unweighted settings. In particular, existing algorithms that use VC-dimension [Ducoffe, Habib, Viennot; SICOMP 2022] [Le, Wulff-Nilsen; SODA 2024] [Chan, Chang, Gao, Le, Kisfaludi-Bak, Zheng; FOCS 2025] work with small integer weights, but do not naturally generalize to real weights. We overcome this barrier by introducing a randomized search-to-decision reduction, demonstrating that VC-dimension is a sufficiently powerful tool in the real-weighted regime." acknowledgement: "This project has received funding from the Austrian Science Fund (FWF)\r\ngrant DOI 10.55776/I5982. For open access purposes, the author has applied a CC BY public\r\ncopyright license to any author-accepted manuscript version arising from this submission. Thanks to Jie Gao for feedback on a preliminary version of the manuscript" alternative_title: - LIPIcs article_number: 61:1-61:12 article_processing_charge: Yes arxiv: 1 author: - first_name: Da Wei full_name: Zheng, Da Wei id: af77956b-e859-11ef-8dc9-d301b898e32f last_name: Zheng citation: ama: 'Zheng DW. Real-weighted diameter and eccentricities of minor-free and bounded VC-dimension graphs in truly subquadratic time. In: 34th Annual European Symposium on Algorithms. Vol 388. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2026. doi:10.4230/LIPIcs.ESA.2026.61' apa: 'Zheng, D. W. (2026). Real-weighted diameter and eccentricities of minor-free and bounded VC-dimension graphs in truly subquadratic time. In 34th Annual European Symposium on Algorithms (Vol. 388). L’Aquila, Italy: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPIcs.ESA.2026.61' chicago: Zheng, Da Wei. “Real-Weighted Diameter and Eccentricities of Minor-Free and Bounded VC-Dimension Graphs in Truly Subquadratic Time.” In 34th Annual European Symposium on Algorithms, Vol. 388. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2026. https://doi.org/10.4230/LIPIcs.ESA.2026.61. ieee: D. W. Zheng, “Real-weighted diameter and eccentricities of minor-free and bounded VC-dimension graphs in truly subquadratic time,” in 34th Annual European Symposium on Algorithms, L’Aquila, Italy, 2026, vol. 388. ista: 'Zheng DW. 2026. Real-weighted diameter and eccentricities of minor-free and bounded VC-dimension graphs in truly subquadratic time. 34th Annual European Symposium on Algorithms. ESA: European Symposium on Algorithms, LIPIcs, vol. 388, 61:1-61:12.' mla: Zheng, Da Wei. “Real-Weighted Diameter and Eccentricities of Minor-Free and Bounded VC-Dimension Graphs in Truly Subquadratic Time.” 34th Annual European Symposium on Algorithms, vol. 388, 61:1-61:12, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2026, doi:10.4230/LIPIcs.ESA.2026.61. short: D.W. Zheng, in:, 34th Annual European Symposium on Algorithms, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2026. conference: end_date: 2026-09-04 location: L’Aquila, Italy name: 'ESA: European Symposium on Algorithms' start_date: 2026-08-31 corr_author: '1' das_tickbox: '0' date_created: 2026-09-13T22:01:52Z date_published: 2026-08-25T00:00:00Z date_updated: 2026-09-17T09:31:02Z day: '25' ddc: - '000' department: - _id: MoHe doi: 10.4230/LIPIcs.ESA.2026.61 external_id: arxiv: - '2607.01926' file: - access_level: open_access checksum: 574f50435b092a72041c7365cac3d280 content_type: application/pdf creator: dernst date_created: 2026-09-17T09:28:04Z date_updated: 2026-09-17T09:28:04Z file_id: '22942' file_name: 2026_LIPIcsESA_Zheng.pdf file_size: 760002 relation: main_file success: 1 file_date_updated: 2026-09-17T09:28:04Z fulldoi: https://doi.org/10.4230/LIPIcs.ESA.2026.61 has_accepted_license: '1' intvolume: ' 388' keyword: - Diameter - eccentricities - minor-free graphs - real weights - VC-dimension language: - iso: eng month: '08' oa: 1 oa_version: Published Version project: - _id: bda196b2-d553-11ed-ba76-8e8ee6c21103 grant_number: I05982 name: Static and Dynamic Hierarchical Graph Decompositions publication: 34th Annual European Symposium on Algorithms publication_identifier: eissn: - 1868-8969 isbn: - '9783959774451' publication_status: published publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik quality_controlled: '1' researchdata_availability: no scopus_import: '1' status: public supplementarymaterial: no title: Real-weighted diameter and eccentricities of minor-free and bounded VC-dimension graphs in truly subquadratic time tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 388 year: '2026' ... --- OA_place: publisher OA_type: diamond _id: '22928' abstract: - lang: eng text: "We present deep ALMA Band 7 observations of the [O iii] 88 µm line and underlying dust continuum\r\nemission in four UV-bright, gravitationally lensed (magnification µ = 1.4 − 3.8), JWST-selected\r\ngalaxies at z = 8.5 − 10.3, with observed magnitudes −22.5 ≲ MUV ≲ −20.5. [O iii] 88 µm is\r\nconfidently detected in UNCOVER-10646 at z = 8.5080 ± 0.0011 (15σ) and DHZ1 at z = 9.3113 ±\r\n0.0006 (6σ), with both being intrinsically luminous systems [L[O iii] = (1.1− 1.6) ×109 L⊙] that follow\r\nthe local [O iii]-SFR relation. [O iii] 88 µm remains undetected in the two z > 10 targets, including in\r\nthe z = 10.07 X-ray AGN UHZ1, where we obtain a deep limit of L[O iii] < 6 × 107 L⊙. Dust emission\r\nis not detected in any individual source nor in a stack (< 3σ). The high S/N [O iii] 88 µm detection\r\nin UNCOVER-10646 uniquely reveals an additional broad component (FWHM = 1366+473\r\n−329 km/s;\r\n∆BIC ≈ 20) indicative of an ionized outflow. We infer a high outflow rate of M˙\r\nout = 128+80\r\n−46 M⊙ yr−1\r\n,\r\ncorresponding to a mass loading factor η = M˙\r\nout/SFR = 2.9\r\n+1.8\r\n−1.0\r\nthat matches or exceeds theoretical\r\npredictions and JWST-based studies of ionized outflows at high redshift. While high-resolution ALMA\r\nfollow-up is required to confirm and spatially resolve the outflow, this first systematic study at z > 8\r\nhighlights the unique diagnostic power of [O iii] 88 µm in characterizing galaxies in the early Universe." acknowledgement: "We thank the referee for their valuable and constructive comments that improved this work. We also thank Javier Alvarez-M´arquez for useful discussions ´\r\nabout the MIRI observations of UHZ1 and UNCOVER37126. HSBA gratefully acknowledges support from\r\nAcademia Sinica through grant AS-PD-1141-M01-2. MA\r\nis supported by FONDECYT grant number 1252054,\r\nand gratefully acknowledges support from ANID Basal\r\nProject FB210003 and ANID MILENIO NCN2024 112.\r\nAKI acknowledges support from KAKENHI Grant No.\r\n23H00131. NW was supported by the GACR EXPRO\r\ngrant No. 21-13491X.\r\nThis paper makes use of the following ALMA data:\r\nADS/JAO.ALMA#2024.1.00440.S,\r\nADS/JAO.ALMA#2024.1.01197.S\r\nALMA is a partnership of ESO (representing its member states), NSF (USA) and NINS (Japan), together with\r\nNRC (Canada), MOST and ASIAA (Taiwan), and KASI\r\n(Republic of Korea), in cooperation with the Republic\r\nof Chile. The Joint ALMA Observatory is operated by\r\nESO, AUI/NRAO and NAOJ." article_processing_charge: No article_type: original arxiv: 1 author: - first_name: Hiddo S.B. full_name: Algera, Hiddo S.B. last_name: Algera - first_name: John R. full_name: Weaver, John R. last_name: Weaver - first_name: Tom J.L.C. full_name: Bakx, Tom J.L.C. last_name: Bakx - first_name: Manuel full_name: Aravena, Manuel last_name: Aravena - first_name: Rychard J. full_name: Bouwens, Rychard J. last_name: Bouwens - first_name: Karin full_name: Cescon, Karin last_name: Cescon - first_name: Chian Chou full_name: Chen, Chian Chou last_name: Chen - first_name: Elisabete full_name: Da Cunha, Elisabete last_name: Da Cunha - first_name: Pratika full_name: Dayal, Pratika last_name: Dayal - first_name: Andreas full_name: Faisst, Andreas last_name: Faisst - first_name: Andrea full_name: Ferrara, Andrea last_name: Ferrara - first_name: Seiji full_name: Fujimoto, Seiji last_name: Fujimoto - first_name: Takuya full_name: Hashimoto, Takuya last_name: Hashimoto - first_name: Kasper full_name: Heintz, Kasper last_name: Heintz - first_name: Rodrigo full_name: Herrera-Camus, Rodrigo last_name: Herrera-Camus - first_name: Jacqueline full_name: Hodge, Jacqueline last_name: Hodge - first_name: Hanae full_name: Inami, Hanae last_name: Inami - first_name: Akio K. full_name: Inoue, Akio K. last_name: Inoue - first_name: Jorryt J full_name: Matthee, Jorryt J id: 7439a258-f3c0-11ec-9501-9df22fe06720 last_name: Matthee orcid: 0000-0003-2871-127X - first_name: Romain full_name: Meyer, Romain last_name: Meyer - first_name: Shoichiro full_name: Mizukoshi, Shoichiro last_name: Mizukoshi - first_name: Chayan full_name: Mondal, Chayan last_name: Mondal - first_name: Themiya full_name: Nanayakkara, Themiya last_name: Nanayakkara - first_name: Pascal A. full_name: Oesch, Pascal A. last_name: Oesch - first_name: Andrea full_name: Pallottini, Andrea last_name: Pallottini - first_name: Huub full_name: Röttgering, Huub last_name: Röttgering - first_name: Lucie E. full_name: Rowland, Lucie E. last_name: Rowland - first_name: Sander full_name: Schouws, Sander last_name: Schouws - first_name: Renske full_name: Smit, Renske last_name: Smit - first_name: Laura full_name: Sommovigo, Laura last_name: Sommovigo - first_name: Daniel P. full_name: Stark, Daniel P. last_name: Stark - first_name: Yuma full_name: Sugahara, Yuma last_name: Sugahara - first_name: Livia full_name: Vallini, Livia last_name: Vallini - first_name: Bovornpratch full_name: Vijarnwannaluk, Bovornpratch last_name: Vijarnwannaluk - first_name: Paul full_name: Van Der Werf, Paul last_name: Van Der Werf - first_name: Norbert full_name: Werner, Norbert last_name: Werner - first_name: Joris full_name: Witstok, Joris last_name: Witstok - first_name: Mengyuan full_name: Xiao, Mengyuan last_name: Xiao citation: ama: 'Algera HSB, Weaver JR, Bakx TJLC, et al. A first systematic study of [OIII] 88μm at z>8: two luminous oxygen lines and a powerful ionized outflow in the first 600 million years. The Open Journal of Astrophysics. 2026;9. doi:10.33232/001c.165333' apa: 'Algera, H. S. B., Weaver, J. R., Bakx, T. J. L. C., Aravena, M., Bouwens, R. J., Cescon, K., … Xiao, M. (2026). A first systematic study of [OIII] 88μm at z>8: two luminous oxygen lines and a powerful ionized outflow in the first 600 million years. The Open Journal of Astrophysics. Maynooth Academic Publishing. https://doi.org/10.33232/001c.165333' chicago: 'Algera, Hiddo S.B., John R. Weaver, Tom J.L.C. Bakx, Manuel Aravena, Rychard J. Bouwens, Karin Cescon, Chian Chou Chen, et al. “A First Systematic Study of [OIII] 88μm at Z>8: Two Luminous Oxygen Lines and a Powerful Ionized Outflow in the First 600 Million Years.” The Open Journal of Astrophysics. Maynooth Academic Publishing, 2026. https://doi.org/10.33232/001c.165333.' ieee: 'H. S. B. Algera et al., “A first systematic study of [OIII] 88μm at z>8: two luminous oxygen lines and a powerful ionized outflow in the first 600 million years,” The Open Journal of Astrophysics, vol. 9. Maynooth Academic Publishing, 2026.' ista: 'Algera HSB, Weaver JR, Bakx TJLC, Aravena M, Bouwens RJ, Cescon K, Chen CC, Da Cunha E, Dayal P, Faisst A, Ferrara A, Fujimoto S, Hashimoto T, Heintz K, Herrera-Camus R, Hodge J, Inami H, Inoue AK, Matthee JJ, Meyer R, Mizukoshi S, Mondal C, Nanayakkara T, Oesch PA, Pallottini A, Röttgering H, Rowland LE, Schouws S, Smit R, Sommovigo L, Stark DP, Sugahara Y, Vallini L, Vijarnwannaluk B, Van Der Werf P, Werner N, Witstok J, Xiao M. 2026. A first systematic study of [OIII] 88μm at z>8: two luminous oxygen lines and a powerful ionized outflow in the first 600 million years. The Open Journal of Astrophysics. 9.' mla: 'Algera, Hiddo S. B., et al. “A First Systematic Study of [OIII] 88μm at Z>8: Two Luminous Oxygen Lines and a Powerful Ionized Outflow in the First 600 Million Years.” The Open Journal of Astrophysics, vol. 9, Maynooth Academic Publishing, 2026, doi:10.33232/001c.165333.' short: H.S.B. Algera, J.R. Weaver, T.J.L.C. Bakx, M. Aravena, R.J. Bouwens, K. Cescon, C.C. Chen, E. Da Cunha, P. Dayal, A. Faisst, A. Ferrara, S. Fujimoto, T. Hashimoto, K. Heintz, R. Herrera-Camus, J. Hodge, H. Inami, A.K. Inoue, J.J. Matthee, R. Meyer, S. Mizukoshi, C. Mondal, T. Nanayakkara, P.A. Oesch, A. Pallottini, H. Röttgering, L.E. Rowland, S. Schouws, R. Smit, L. Sommovigo, D.P. Stark, Y. Sugahara, L. Vallini, B. Vijarnwannaluk, P. Van Der Werf, N. Werner, J. Witstok, M. Xiao, The Open Journal of Astrophysics 9 (2026). dataavailabilitystatement: "This paper makes use of the following ALMA data:\r\nADS/JAO.ALMA#2024.1.00440.S,\r\nADS/JAO.ALMA#2024.1.01197.S\r\nALMA is a partnership of ESO (representing its member states), NSF (USA) and NINS (Japan), together with\r\nNRC (Canada), MOST and ASIAA (Taiwan), and KASI\r\n(Republic of Korea), in cooperation with the Republic\r\nof Chile. The Joint ALMA Observatory is operated by\r\nESO, AUI/NRAO and NAOJ." date_created: 2026-09-13T22:01:57Z date_published: 2026-07-21T00:00:00Z date_updated: 2026-09-17T08:31:24Z day: '21' ddc: - '520' department: - _id: JoMa doi: 10.33232/001c.165333 external_id: arxiv: - '2512.14486' fulldoi: https://doi.org/10.33232/001c.165333 has_accepted_license: '1' intvolume: ' 9' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.48550/arXiv.2512.14486 month: '07' oa: 1 oa_version: Published Version publication: The Open Journal of Astrophysics publication_identifier: eissn: - 2565-6120 publication_status: published publisher: Maynooth Academic Publishing quality_controlled: '1' researchdata_availability: no scopus_import: '1' status: public supplementarymaterial: yes title: 'A first systematic study of [OIII] 88μm at z>8: two luminous oxygen lines and a powerful ionized outflow in the first 600 million years' tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 9 year: '2026' ... --- OA_place: publisher OA_type: gold _id: '22920' abstract: - lang: eng text: "Two-player games on graphs are a classical framework for analyzing strategic decision making. In turn-based games, two players move a token along the edges of the graph, and the right to move the token is determined by the current vertex. In traditional bidding games - referred to as pure bidding games - the right to move the token is determined at each step through bidding; here we consider Richman bidding, where the winning player of a bid pays the losing player. The winner is decided based on a temporal or quantitative specification evaluated over the resulting infinite play.\r\nIn this work, we combine turn-based games and pure bidding games into generalized bidding games, with player-1 vertices, player-2 vertices, and bidding vertices. This natural and simple generalization of bidding games has far-reaching consequences. First, we show that, as a model, generalized bidding games are more expressive than pure bidding games, and we provide several applications. Second, and most importantly, we show that generalized Richman bidding games are structurally equivalent to simple stochastic games, a well-studied model: they are linearly interreducible to each other. As was previously known, the special case of pure Richman bidding games corresponds to random-turn games. In other words, generalized bidding games extend pure bidding games in the same way that simple stochastic games extend random-turn games. We use this connection to solve generalized Richman bidding games for temporal (parity) and quantitative (mean-payoff and discounted-sum) specifications. From a computational perspective, we establish that generalized bidding games with parity and mean-payoff specifications retain the best known upper bounds for turn-based games and pure bidding games, namely NP∩coNP.\r\nFinally, we study a repair problem that asks whether bidding vertices can be assigned \"owners\" so as to bring the threshold budget required to win the game below a given target. This problem has direct applications in compositional policy synthesis for multi-objective settings, and we show it to be NP-complete." acknowledgement: "The research was partially supported by Austrian Science Fund (FWF) 10.55776/COE12,\r\nERC CoG 863818 (ForM-SMArt), FWF-2022-SFB F8502 (SPyCoDe), ERC-2020-AdG 101020093\r\n(VAMOS), and the RYC2024-049116-I grant funded by MICIU/AEI/10.13039/501100011033 and\r\nESF+.\r\n" alternative_title: - LIPIcs article_number: 13:1-13:20 article_processing_charge: Yes arxiv: 1 author: - first_name: Ali full_name: Asadi, Ali id: 02d96aae-000e-11ec-b801-cadd0a5eefbb last_name: Asadi - first_name: Thomas A full_name: Henzinger, Thomas A id: 40876CD8-F248-11E8-B48F-1D18A9856A87 last_name: Henzinger orcid: 0000-0002-2985-7724 - first_name: Ehsan full_name: Kafshdar Goharshadi, Ehsan id: 103b4fa0-896a-11ed-bdf8-87b697bef40d last_name: Kafshdar Goharshadi orcid: 0000-0002-8595-0587 - first_name: Pavol full_name: Kebis, Pavol id: 2e0132b3-4e98-11ef-b275-cf7281c2802a last_name: Kebis - first_name: Kaushik full_name: Mallik, Kaushik id: 0834ff3c-6d72-11ec-94e0-b5b0a4fb8598 last_name: Mallik orcid: 0000-0001-9864-7475 citation: ama: 'Asadi A, Henzinger TA, Goharshady E, Kebis P, Mallik K. Generalized bidding games: Where bidding and stochastic games meet. In: 37th International Conference on Concurrency Theory. Vol 391. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2026. doi:10.4230/LIPIcs.CONCUR.2026.13' apa: 'Asadi, A., Henzinger, T. A., Goharshady, E., Kebis, P., & Mallik, K. (2026). Generalized bidding games: Where bidding and stochastic games meet. In 37th International Conference on Concurrency Theory (Vol. 391). Liverpool, United Kingdom: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPIcs.CONCUR.2026.13' chicago: 'Asadi, Ali, Thomas A Henzinger, Ehsan Goharshady, Pavol Kebis, and Kaushik Mallik. “Generalized Bidding Games: Where Bidding and Stochastic Games Meet.” In 37th International Conference on Concurrency Theory, Vol. 391. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2026. https://doi.org/10.4230/LIPIcs.CONCUR.2026.13.' ieee: 'A. Asadi, T. A. Henzinger, E. Goharshady, P. Kebis, and K. Mallik, “Generalized bidding games: Where bidding and stochastic games meet,” in 37th International Conference on Concurrency Theory, Liverpool, United Kingdom, 2026, vol. 391.' ista: 'Asadi A, Henzinger TA, Goharshady E, Kebis P, Mallik K. 2026. Generalized bidding games: Where bidding and stochastic games meet. 37th International Conference on Concurrency Theory. CONCUR: Conference on Concurrency Theory, LIPIcs, vol. 391, 13:1-13:20.' mla: 'Asadi, Ali, et al. “Generalized Bidding Games: Where Bidding and Stochastic Games Meet.” 37th International Conference on Concurrency Theory, vol. 391, 13:1-13:20, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2026, doi:10.4230/LIPIcs.CONCUR.2026.13.' short: A. Asadi, T.A. Henzinger, E. Goharshady, P. Kebis, K. Mallik, in:, 37th International Conference on Concurrency Theory, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2026. conference: end_date: 2026-09-04 location: Liverpool, United Kingdom name: 'CONCUR: Conference on Concurrency Theory' start_date: 2026-09-01 corr_author: '1' das_tickbox: '0' date_created: 2026-09-13T22:01:53Z date_published: 2026-08-24T00:00:00Z date_updated: 2026-09-17T09:44:41Z day: '24' ddc: - '000' department: - _id: GradSch - _id: KrCh - _id: ToHe doi: 10.4230/LIPIcs.CONCUR.2026.13 ec_funded: 1 external_id: arxiv: - '2606.29420' file: - access_level: open_access checksum: de9af748d78fa42c173f68a71cbbd8d9 content_type: application/pdf creator: dernst date_created: 2026-09-17T09:43:28Z date_updated: 2026-09-17T09:43:28Z file_id: '22946' file_name: 2026_LIPIcsCONCUR_Asadi.pdf file_size: 1175682 relation: main_file success: 1 file_date_updated: 2026-09-17T09:43:28Z fulldoi: https://doi.org/10.4230/LIPIcs.CONCUR.2026.13 has_accepted_license: '1' intvolume: ' 391' keyword: - Bidding Games - Stochastic Games language: - iso: eng month: '08' oa: 1 oa_version: Published Version project: - _id: 4029cfc7-b034-11f1-9e55-88ab2ff3b6ee grant_number: COE12 name: Bilateral Artificial Intelligence (Chatterjee) - _id: 0599E47C-7A3F-11EA-A408-12923DDC885E call_identifier: H2020 grant_number: '863818' name: 'Formal Methods for Stochastic Models: Algorithms and Applications' - _id: 34a1b658-11ca-11ed-8bc3-c75229f0241e grant_number: F8502 name: Interface Theory for Security and Privacy - _id: 62781420-2b32-11ec-9570-8d9b63373d4d call_identifier: H2020 grant_number: '101020093' name: Vigilant Algorithmic Monitoring of Software publication: 37th International Conference on Concurrency Theory publication_identifier: eissn: - 1868-8969 isbn: - '9783959774475' publication_status: published publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik quality_controlled: '1' researchdata_availability: no scopus_import: '1' status: public supplementarymaterial: yes title: 'Generalized bidding games: Where bidding and stochastic games meet' tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 391 year: '2026' ... --- OA_place: publisher OA_type: gold _id: '22919' abstract: - lang: eng text: 'Reachability is the most fundamental logical objective, yet it is notoriously difficult to learn in reinforcement learning settings: even for Markov decision processes, PAC learning of reachability is impossible without additional assumptions. This difficulty also holds in turn-based stochastic games (TBSGs), where two adversarial players interact on a finite state space. In this work, we consider turn-based stochastic games with reachability objectives. For such settings, adversarial learning, in which players are adversarial even in the learning phase, is impossible. Therefore, the goal is to consider learning, in which both players learn the unknown model together. In this spirit, previous literature on PAC learning in TBSGs considers (a) public information shared by both players; and (b) centralized learning, which means that players share the same learning algorithm. In this work, our contribution is two-fold. First, we relax these strong assumptions and ensure learning: (i) with private information not shared with the other player; and (ii) decentralized learning where the players do not share the same learning algorithm. To the best of our knowledge, this work is the first positive result for decentralized and private information learning of TBSGs with reachability objectives. Second, we introduce a game-theoretic generalization of the Expected Conditional Distance (ECD) parameter, which measures the expected length of reaching the target set. We establish a polynomial-sample complexity bound with respect to the number of states, actions, ECD parameter, and inverses of error tolerance and failure probability.' acknowledgement: "The research was partially supported by Austrian Science Fund (FWF) 10.55776/COE12,\r\nERC CoG 863818 (ForM-SMArt), FWF-2022-SFB F8502 (SPyCoDe), and ERC-2020-AdG 101020093\r\n(VAMOS) grants." alternative_title: - LIPIcs article_number: 12:1-12:23 article_processing_charge: Yes arxiv: 1 author: - first_name: Ali full_name: Asadi, Ali id: 02d96aae-000e-11ec-b801-cadd0a5eefbb last_name: Asadi - first_name: Krishnendu full_name: Chatterjee, Krishnendu id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87 last_name: Chatterjee orcid: 0000-0002-4561-241X - first_name: Pavol full_name: Kebis, Pavol id: 2e0132b3-4e98-11ef-b275-cf7281c2802a last_name: Kebis citation: ama: 'Asadi A, Chatterjee K, Kebis P. PAC learning in turn-based stochastic games with reachability objectives: A decentralized private approach via expected conditional distance. In: 37th International Conference on Concurrency Theory. Vol 391. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2026. doi:10.4230/LIPIcs.CONCUR.2026.12' apa: 'Asadi, A., Chatterjee, K., & Kebis, P. (2026). PAC learning in turn-based stochastic games with reachability objectives: A decentralized private approach via expected conditional distance. In 37th International Conference on Concurrency Theory (Vol. 391). Liverpool, United Kingdom: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPIcs.CONCUR.2026.12' chicago: 'Asadi, Ali, Krishnendu Chatterjee, and Pavol Kebis. “PAC Learning in Turn-Based Stochastic Games with Reachability Objectives: A Decentralized Private Approach via Expected Conditional Distance.” In 37th International Conference on Concurrency Theory, Vol. 391. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2026. https://doi.org/10.4230/LIPIcs.CONCUR.2026.12.' ieee: 'A. Asadi, K. Chatterjee, and P. Kebis, “PAC learning in turn-based stochastic games with reachability objectives: A decentralized private approach via expected conditional distance,” in 37th International Conference on Concurrency Theory, Liverpool, United Kingdom, 2026, vol. 391.' ista: 'Asadi A, Chatterjee K, Kebis P. 2026. PAC learning in turn-based stochastic games with reachability objectives: A decentralized private approach via expected conditional distance. 37th International Conference on Concurrency Theory. CONCUR: Conference on Concurrency Theory, LIPIcs, vol. 391, 12:1-12:23.' mla: 'Asadi, Ali, et al. “PAC Learning in Turn-Based Stochastic Games with Reachability Objectives: A Decentralized Private Approach via Expected Conditional Distance.” 37th International Conference on Concurrency Theory, vol. 391, 12:1-12:23, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2026, doi:10.4230/LIPIcs.CONCUR.2026.12.' short: A. Asadi, K. Chatterjee, P. Kebis, in:, 37th International Conference on Concurrency Theory, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2026. conference: end_date: 2026-09-04 location: Liverpool, United Kingdom name: 'CONCUR: Conference on Concurrency Theory' start_date: 2026-09-01 corr_author: '1' das_tickbox: '0' date_created: 2026-09-13T22:01:53Z date_published: 2026-08-24T00:00:00Z date_updated: 2026-09-17T09:51:25Z day: '24' ddc: - '000' department: - _id: GradSch - _id: KrCh - _id: ToHe doi: 10.4230/LIPIcs.CONCUR.2026.12 ec_funded: 1 external_id: arxiv: - '2607.14877' file: - access_level: open_access checksum: 2e6c55b65d9d7ce436a6f59e81d7ba17 content_type: application/pdf creator: dernst date_created: 2026-09-17T09:50:00Z date_updated: 2026-09-17T09:50:00Z file_id: '22947' file_name: 2026_LIPIcsCONCUR_Asadi2.pdf file_size: 959234 relation: main_file success: 1 file_date_updated: 2026-09-17T09:50:00Z fulldoi: https://doi.org/10.4230/LIPIcs.CONCUR.2026.12 has_accepted_license: '1' intvolume: ' 391' keyword: - formal methods - games and logic - logical aspects of AI - model checking language: - iso: eng month: '08' oa: 1 oa_version: Published Version project: - _id: 4029cfc7-b034-11f1-9e55-88ab2ff3b6ee grant_number: COE12 name: Bilateral Artificial Intelligence (Chatterjee) - _id: 0599E47C-7A3F-11EA-A408-12923DDC885E call_identifier: H2020 grant_number: '863818' name: 'Formal Methods for Stochastic Models: Algorithms and Applications' - _id: 34a1b658-11ca-11ed-8bc3-c75229f0241e grant_number: F8502 name: Interface Theory for Security and Privacy - _id: 62781420-2b32-11ec-9570-8d9b63373d4d call_identifier: H2020 grant_number: '101020093' name: Vigilant Algorithmic Monitoring of Software publication: 37th International Conference on Concurrency Theory publication_identifier: eissn: - 1868-8969 isbn: - '9783959774475' publication_status: published publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik quality_controlled: '1' researchdata_availability: no scopus_import: '1' status: public supplementarymaterial: yes title: 'PAC learning in turn-based stochastic games with reachability objectives: A decentralized private approach via expected conditional distance' tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 391 year: '2026' ... --- OA_place: publisher OA_type: gold _id: '22918' abstract: - lang: eng text: "Given a weighted digraph G, a (t,g,μ)-DAG cover is a collection of g dominating DAGs D_1,… ,D_g such that all distances are approximately preserved: for every pair (u,v) of vertices, min_id_{D_i}(u,v) ≤ t⋅ d_G(u,v), and the total number of non-G edges is bounded by |(∪_i D_i)⧵ G| ≤ μ. Assadi, Hoppenworth, and Wein [STOC 25] and Filtser [SODA 26] studied DAG covers for general digraphs. This paper initiates the study of Steiner DAG cover, where the DAGs are allowed to contain Steiner points. \r\nWe obtain Steiner DAG covers on the important classes of planar digraphs and low-treewidth digraphs. Specifically, we show that any digraph with treewidth tw admits a (1,2,Õ(n⋅tw))-Steiner DAG cover. For planar digraphs we provide a (1+ε,2,Õ_ε(n))-Steiner DAG cover.\r\nWe also demonstrate a stark difference between Steiner and non-Steiner DAG covers. As a lower bound, we show that any non-Steiner DAG cover for graphs with treewidth 1 with stretch t < 2 and sub-quadratic number of extra edges requires Ω(log n) DAGs." acknowledgement: "This work was initiated at Dagstuhl Seminar 25212: Metric Sketching and\r\nDynamic Algorithms for Geometric and Topological Graphs. We thank the organizers and other\r\nparticipants for a productive environment.\r\nujoy Bhore: Work supported in part by ANRF ARG-MATRICS, Grant 002465.\r\nHsien-Chih Chang: Supported by the U.S. National Science Foundation Grant No. CCF-2443017.\r\nJonathan Conroy: Supported by the U.S. National Science Foundation Grant No. CCF-2443017.\r\nArnold Filtser: This research was supported by the ISRAEL SCIENCE FOUNDATION (grant No.\r\n1042/22).\r\nEunjin Oh: Supported by Institute of Information & Communications Technology Planning &\r\nEvaluation (IITP) grant funded by the Korea government (MSIT) (No. RS-2024-00440239, Sublinear\r\nScalable Algorithms for Large-Scale Data Analysis) and the National Research Foundation of Korea\r\n(NRF) grant funded by the Korea government (MSIT) (No. RS-2024-00358505).\r\nNicole Wein: Supported by NSF CAREER award 2541910.\r\nDa Wei Zheng: This project has received funding from the Austrian Science Fund (FWF) grant\r\nDOI 10.55776/I5982. For open access purposes, the author has applied a CC BY public copyright\r\nlicense to any author-accepted manuscript version arising from this submission." alternative_title: - LIPIcs article_number: 94:1-94:18 article_processing_charge: Yes arxiv: 1 author: - first_name: Sujoy full_name: Bhore, Sujoy last_name: Bhore - first_name: Hsien Chih full_name: Chang, Hsien Chih last_name: Chang - first_name: Jonathan full_name: Conroy, Jonathan last_name: Conroy - first_name: Arnold full_name: Filtser, Arnold last_name: Filtser - first_name: Eunjin full_name: Oh, Eunjin last_name: Oh - first_name: Nicole full_name: Wein, Nicole last_name: Wein - first_name: Da Wei full_name: Zheng, Da Wei id: af77956b-e859-11ef-8dc9-d301b898e32f last_name: Zheng citation: ama: 'Bhore S, Chang HC, Conroy J, et al. DAG covers for structured graphs: The Steiner point effect. In: 34th Annual European Symposium on Algorithms. Vol 388. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2026. doi:10.4230/LIPIcs.ESA.2026.94' apa: 'Bhore, S., Chang, H. C., Conroy, J., Filtser, A., Oh, E., Wein, N., & Zheng, D. W. (2026). DAG covers for structured graphs: The Steiner point effect. In 34th Annual European Symposium on Algorithms (Vol. 388). L’Aquila, Italy: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPIcs.ESA.2026.94' chicago: 'Bhore, Sujoy, Hsien Chih Chang, Jonathan Conroy, Arnold Filtser, Eunjin Oh, Nicole Wein, and Da Wei Zheng. “DAG Covers for Structured Graphs: The Steiner Point Effect.” In 34th Annual European Symposium on Algorithms, Vol. 388. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2026. https://doi.org/10.4230/LIPIcs.ESA.2026.94.' ieee: 'S. Bhore et al., “DAG covers for structured graphs: The Steiner point effect,” in 34th Annual European Symposium on Algorithms, L’Aquila, Italy, 2026, vol. 388.' ista: 'Bhore S, Chang HC, Conroy J, Filtser A, Oh E, Wein N, Zheng DW. 2026. DAG covers for structured graphs: The Steiner point effect. 34th Annual European Symposium on Algorithms. ESA: European Symposium on Algorithms, LIPIcs, vol. 388, 94:1-94:18.' mla: 'Bhore, Sujoy, et al. “DAG Covers for Structured Graphs: The Steiner Point Effect.” 34th Annual European Symposium on Algorithms, vol. 388, 94:1-94:18, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2026, doi:10.4230/LIPIcs.ESA.2026.94.' short: S. Bhore, H.C. Chang, J. Conroy, A. Filtser, E. Oh, N. Wein, D.W. Zheng, in:, 34th Annual European Symposium on Algorithms, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2026. conference: end_date: 2026-09-04 location: L’Aquila, Italy name: 'ESA: European Symposium on Algorithms' start_date: 2026-08-31 corr_author: '1' das_tickbox: '0' date_created: 2026-09-13T22:01:53Z date_published: 2026-08-25T00:00:00Z date_updated: 2026-09-17T10:27:46Z day: '25' ddc: - '000' department: - _id: MoHe doi: 10.4230/LIPIcs.ESA.2026.94 external_id: arxiv: - '2604.04186' file: - access_level: open_access checksum: 2082683b3b72865c6a795305e5d61276 content_type: application/pdf creator: dernst date_created: 2026-09-17T10:09:22Z date_updated: 2026-09-17T10:09:22Z file_id: '22948' file_name: 2026_LIPIcsESA_Bhore.pdf file_size: 1123327 relation: main_file success: 1 file_date_updated: 2026-09-17T10:09:22Z fulldoi: https://doi.org/10.4230/LIPIcs.ESA.2026.94 has_accepted_license: '1' intvolume: ' 388' keyword: - Directed graphs - DAG (directed acyclic graphs) - distortion - metric embeddings - planar graph - treewidth language: - iso: eng month: '08' oa: 1 oa_version: Published Version project: - _id: bda196b2-d553-11ed-ba76-8e8ee6c21103 grant_number: I05982 name: Static and Dynamic Hierarchical Graph Decompositions publication: 34th Annual European Symposium on Algorithms publication_identifier: isbn: - '9783959774451' issn: - 1868-8969 publication_status: published publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik quality_controlled: '1' researchdata_availability: no scopus_import: '1' status: public supplementarymaterial: yes title: 'DAG covers for structured graphs: The Steiner point effect' tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 388 year: '2026' ... --- OA_place: publisher OA_type: gold _id: '22917' abstract: - lang: eng text: 'A heap is a dynamic data structure that stores a set of labeled values under the following operations: pop returns the minimum value of the heap, Push(x_i) pushes a new value x_i onto the heap, and DecreaseKey(i, v) decreases the value x_i to v. A working-set heap is a heap that supports the x_i ← pop() operation in O(log Γ(x_i)) time where Γ(x_i) is the size of the working set: the number of elements that were pushed onto the heap while x_i was in the heap. The goal of working set heap design is to maintain the working set property while minimizing the overhead of the Push and DecreaseKey operations. On a word RAM, there exist working set heaps that support Push and DecreaseKey in amortized constant time. In this paper, we show via a simple construction that pointer machines, one of the most general and least-assuming computational models, support working set heaps that support Push in amortized constant time and DecreaseKey in inverse-Ackermann time. A by-product of this analysis is that Dijkstra’s shortest path algorithm can be near-universally optimal on a pointer machine - incurring only an additive O(m α(m)) overhead compared to the optimal running time for distance ordering, where m denotes the number of edges in the graph.' acknowledgement: "Ivor van der Hoog, Eva Rotenberg, and Daniel Rutschmann thank the VILLUM Foundation\r\ngrant (VIL37507) “Efficient Recomputations for Changeful Problems” for supporting this work.\r\nDaniel Rutschmann is supported by the European Research Council (ERC) under the European\r\nUnion’s Horizon 2020 research and innovation programme (No. 101019564) . John Iacono\r\nis supported by the Fonds de la Recherche Scientifique – FNRS.This work started at Dagstuhl 25191: Adaptive and Scalable Data Structures.\r\n\r\n" alternative_title: - LIPIcs article_number: 45:1-45:13 article_processing_charge: Yes arxiv: 1 author: - first_name: Ivor full_name: Van Der Hoog, Ivor last_name: Van Der Hoog - first_name: John full_name: Iacono, John last_name: Iacono - first_name: Eva full_name: Rotenberg, Eva last_name: Rotenberg - first_name: Daniel P full_name: Rutschmann, Daniel P id: 7397d908-b582-11f0-bf73-88b902e86527 last_name: Rutschmann citation: ama: 'Van Der Hoog I, Iacono J, Rotenberg E, Rutschmann DP. Near-optimal working-set heaps and dijkstra on pointer machines. In: 34th Annual European Symposium on Algorithms. Vol 388. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2026. doi:10.4230/LIPIcs.ESA.2026.45' apa: 'Van Der Hoog, I., Iacono, J., Rotenberg, E., & Rutschmann, D. P. (2026). Near-optimal working-set heaps and dijkstra on pointer machines. In 34th Annual European Symposium on Algorithms (Vol. 388). L’Aquila, Italy: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPIcs.ESA.2026.45' chicago: Van Der Hoog, Ivor, John Iacono, Eva Rotenberg, and Daniel P Rutschmann. “Near-Optimal Working-Set Heaps and Dijkstra on Pointer Machines.” In 34th Annual European Symposium on Algorithms, Vol. 388. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2026. https://doi.org/10.4230/LIPIcs.ESA.2026.45. ieee: I. Van Der Hoog, J. Iacono, E. Rotenberg, and D. P. Rutschmann, “Near-optimal working-set heaps and dijkstra on pointer machines,” in 34th Annual European Symposium on Algorithms, L’Aquila, Italy, 2026, vol. 388. ista: 'Van Der Hoog I, Iacono J, Rotenberg E, Rutschmann DP. 2026. Near-optimal working-set heaps and dijkstra on pointer machines. 34th Annual European Symposium on Algorithms. ESA: European Symposium on Algorithms, LIPIcs, vol. 388, 45:1-45:13.' mla: Van Der Hoog, Ivor, et al. “Near-Optimal Working-Set Heaps and Dijkstra on Pointer Machines.” 34th Annual European Symposium on Algorithms, vol. 388, 45:1-45:13, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2026, doi:10.4230/LIPIcs.ESA.2026.45. short: I. Van Der Hoog, J. Iacono, E. Rotenberg, D.P. Rutschmann, in:, 34th Annual European Symposium on Algorithms, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2026. conference: end_date: 2026-09-04 location: L’Aquila, Italy name: 'ESA: European Symposium on Algorithms' start_date: 2026-08-31 corr_author: '1' das_tickbox: '0' date_created: 2026-09-13T22:01:53Z date_published: 2026-08-25T00:00:00Z date_updated: 2026-09-17T10:35:56Z day: '25' ddc: - '000' department: - _id: MoHe doi: 10.4230/LIPIcs.ESA.2026.45 ec_funded: 1 external_id: arxiv: - '2604.24134' file: - access_level: open_access checksum: 52e7cb8881060e8f17b89cd46504f445 content_type: application/pdf creator: dernst date_created: 2026-09-17T10:33:12Z date_updated: 2026-09-17T10:33:12Z file_id: '22949' file_name: 2026_LIPIcsESA_vanderHoog2.pdf file_size: 792024 relation: main_file success: 1 file_date_updated: 2026-09-17T10:33:12Z fulldoi: https://doi.org/10.4230/LIPIcs.ESA.2026.45 has_accepted_license: '1' intvolume: ' 388' keyword: - Data structures - graph algorithms - amortized analysis language: - iso: eng month: '08' oa: 1 oa_version: Published Version project: - _id: bd9ca328-d553-11ed-ba76-dc4f890cfe62 call_identifier: H2020 grant_number: '101019564' name: The design and evaluation of modern fully dynamic data structures publication: 34th Annual European Symposium on Algorithms publication_identifier: eissn: - 1868-8969 isbn: - '9783959774451' publication_status: published publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik quality_controlled: '1' researchdata_availability: no scopus_import: '1' status: public supplementarymaterial: no title: Near-optimal working-set heaps and dijkstra on pointer machines tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: conference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 388 year: '2026' ... --- DOAJ_listed: '1' OA_place: publisher OA_type: gold PlanS_conform: '1' _id: '22408' abstract: - lang: eng text: Solitons—localized wave packets that travel without spreading—play a central role in understanding transport and properties of nonlinear systems. In quantum many-body systems, however, such robust excitations are typically destroyed by thermalization. Here, we theoretically demonstrate the existence of solitonic excitations in high-energy states of Rydberg atom chains in the regime of strong nearest-neighbor Rydberg blockade. These localized wave packets propagate directionally atop a special class of reviving initial states related to quantum many-body scars and are capable of carrying energy. Exhibiting long coherence times, these states constitute a form of non-ergodic quantum dynamics and can be efficiently implemented on Rydberg atom simulators. In this work, in addition to a phenomenological description of solitons, we identify their counterpart in a classical nonlinear dynamical system, demonstrate their potential use in quantum information transfer, and conjecture their relevance for anomalous energy transport reported in numerical studies of Rydberg atom arrays. acknowledgement: We acknowledge useful discussions with J.-S. Caux, E. Demler, J. Dubail, F. Essler, J. Feldmeier, S. Garratt, W. W. Ho, M. Lukin, Z. Papic, S. Rotter, F. Surace, and R. Vasseur. J.-Y.D. acknowledges funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie Grant Agreement No. 101034413. M. L. acknowledges support by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy—EXC-2111—390814868. We acknowledge support by the Erwin Schrödinger International Institute for Mathematics and Physics (ESI). This research was funded in part by the Austrian Science Fund (FWF) https://doi.org/10.55776/COE1 and the European Union—NextGenerationEU. This research was supported in part by grant NSF PHY2309135 to the Kavli Institute for Theoretical Physics (KITP). article_number: '8783' article_processing_charge: Yes article_type: original author: - first_name: Aron full_name: Kerschbaumer, Aron id: ade85a9c-3200-11ee-973b-91c1eb240410 last_name: Kerschbaumer orcid: 0009-0002-2370-8661 - first_name: Jean-Yves Marc full_name: Desaules, Jean-Yves Marc id: 6c292945-a610-11ed-9eec-c3be1ad62a80 last_name: Desaules orcid: 0000-0002-3749-6375 - first_name: Marko full_name: Ljubotina, Marko id: F75EE9BE-5C90-11EA-905D-16643DDC885E last_name: Ljubotina orcid: 0000-0003-0038-7068 - first_name: Maksym full_name: Serbyn, Maksym id: 47809E7E-F248-11E8-B48F-1D18A9856A87 last_name: Serbyn orcid: 0000-0002-2399-5827 citation: ama: Kerschbaumer A, Desaules J-YM, Ljubotina M, Serbyn M. Quasi-solitons in Rydberg atom chains. Nature Communications. 2026;17. doi:10.1038/s41467-026-75598-1 apa: Kerschbaumer, A., Desaules, J.-Y. M., Ljubotina, M., & Serbyn, M. (2026). Quasi-solitons in Rydberg atom chains. Nature Communications. Springer Nature. https://doi.org/10.1038/s41467-026-75598-1 chicago: Kerschbaumer, Aron, Jean-Yves Marc Desaules, Marko Ljubotina, and Maksym Serbyn. “Quasi-Solitons in Rydberg Atom Chains.” Nature Communications. Springer Nature, 2026. https://doi.org/10.1038/s41467-026-75598-1. ieee: A. Kerschbaumer, J.-Y. M. Desaules, M. Ljubotina, and M. Serbyn, “Quasi-solitons in Rydberg atom chains,” Nature Communications, vol. 17. Springer Nature, 2026. ista: Kerschbaumer A, Desaules J-YM, Ljubotina M, Serbyn M. 2026. Quasi-solitons in Rydberg atom chains. Nature Communications. 17, 8783. mla: Kerschbaumer, Aron, et al. “Quasi-Solitons in Rydberg Atom Chains.” Nature Communications, vol. 17, 8783, Springer Nature, 2026, doi:10.1038/s41467-026-75598-1. short: A. Kerschbaumer, J.-Y.M. Desaules, M. Ljubotina, M. Serbyn, Nature Communications 17 (2026). corr_author: '1' das_tickbox: '1' dataavailabilitystatement: The raw data used to generate the figures are available at ref54.The TEBD algorithm used in this work was implemented using the ITensor library48,49 and the integration of the classical differential equations was performed via SciPy’s Runge-Kutta RK45 integrator52,53. The code used in this study to produce the plots from the shared data is available at ref.54. date_created: 2026-07-27T07:26:27Z date_published: 2026-08-21T00:00:00Z date_updated: 2026-09-17T10:54:09Z day: '21' ddc: - '530' department: - _id: MaSe - _id: GradSch doi: 10.1038/s41467-026-75598-1 ec_funded: 1 external_id: pmid: - '42469244' file: - access_level: open_access checksum: 2e12ade81e19b7eea099a2196217edff content_type: application/pdf creator: dernst date_created: 2026-09-09T07:04:48Z date_updated: 2026-09-09T07:04:48Z file_id: '22863' file_name: 2026_NatureComm_Kerschbaumer.pdf file_size: 1337815 relation: main_file success: 1 file_date_updated: 2026-09-09T07:04:48Z fulldoi: https://doi.org/10.1038/s41467-026-75598-1 has_accepted_license: '1' intvolume: ' 17' language: - iso: eng month: '08' oa: 1 oa_version: Published Version pmid: 1 project: - _id: fc2ed2f7-9c52-11eb-aca3-c01059dda49c call_identifier: H2020 grant_number: '101034413' name: 'IST-BRIDGE: International postdoctoral program' - _id: 92c64506-16d5-11f0-9cad-87ce313ee832 grant_number: COE01 name: Quantum Science Austria (Serbyn) publication: Nature Communications publication_identifier: eissn: - 2041-1723 publication_status: published publisher: Springer Nature quality_controlled: '1' related_material: record: - id: '21960' relation: research_data status: public researchdata_availability: yes scopus_import: '1' status: public supplementarymaterial: yes title: Quasi-solitons in Rydberg atom chains tmp: image: /images/cc_by.png legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0) short: CC BY (4.0) type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 17 year: '2026' ... --- OA_place: repository _id: '21960' abstract: - lang: eng text: "Solitons - localized wave packets that travel without spreading - play a central role in understanding transport and properties of nonlinear systems. In quantum many-body systems, however, such robust excitations are typically destroyed by thermalization. Here, we theoretically demonstrate the existence of solitonic excitations in high-energy states of Rydberg atom chains in the regime of strong nearest-neighbor Rydberg blockade. \r\nThese localized wave packets propagate directionally atop a special class of reviving initial states related to quantum many-body scars and are capable of carrying energy. Exhibiting long coherence times, these states constitute a form of non-ergodic quantum dynamics and can be efficiently implemented on Rydberg atom simulators. In this work, in addition to a phenomenological description of solitons, we identify their counterpart in a classical nonlinear dynamical system, demonstrate their potential use in quantum information transfer, and conjecture their relevance for anomalous energy transport reported in numerical studies of Rydberg atom arrays." article_processing_charge: No author: - first_name: Aron full_name: Kerschbaumer, Aron id: ade85a9c-3200-11ee-973b-91c1eb240410 last_name: Kerschbaumer orcid: 0009-0002-2370-8661 citation: ama: 'Kerschbaumer A. Research Data: “Quasi-solitons in Rydberg atom chains.” 2026. doi:10.15479/AT-ISTA-21960' apa: 'Kerschbaumer, A. (2026). Research Data: “Quasi-solitons in Rydberg atom chains.” Institute of Science and Technology Austria. https://doi.org/10.15479/AT-ISTA-21960' chicago: 'Kerschbaumer, Aron. “Research Data: ‘Quasi-Solitons in Rydberg Atom Chains.’” Institute of Science and Technology Austria, 2026. https://doi.org/10.15479/AT-ISTA-21960.' ieee: 'A. Kerschbaumer, “Research Data: ‘Quasi-solitons in Rydberg atom chains.’” Institute of Science and Technology Austria, 2026.' ista: 'Kerschbaumer A. 2026. Research Data: ‘Quasi-solitons in Rydberg atom chains’, Institute of Science and Technology Austria, 10.15479/AT-ISTA-21960.' mla: 'Kerschbaumer, Aron. Research Data: “Quasi-Solitons in Rydberg Atom Chains.” Institute of Science and Technology Austria, 2026, doi:10.15479/AT-ISTA-21960.' short: A. Kerschbaumer, (2026). contributor: - contributor_type: contact_person first_name: Aron id: ade85a9c-3200-11ee-973b-91c1eb240410 last_name: Kerschbaumer orcid: 0009-0002-2370-8661 - contributor_type: supervisor first_name: Maksym id: 47809E7E-F248-11E8-B48F-1D18A9856A87 last_name: Serbyn orcid: 0000-0002-2399-5827 - contributor_type: researcher first_name: Jean-Yves Marc id: 6c292945-a610-11ed-9eec-c3be1ad62a80 last_name: Desaules orcid: 0000-0002-3749-6375 - contributor_type: researcher first_name: Marko last_name: Ljubotina corr_author: '1' date_created: 2026-06-09T07:17:50Z date_published: 2026-06-16T00:00:00Z date_updated: 2026-09-17T10:54:08Z day: '16' department: - _id: GradSch - _id: MaSe doi: 10.15479/AT-ISTA-21960 ec_funded: 1 file: - access_level: open_access checksum: 133269a105e996c6c44fdd56128259c7 content_type: text/plain creator: akerschb date_created: 2026-06-15T22:01:57Z date_updated: 2026-06-15T22:01:57Z file_id: '22010' file_name: README.txt file_size: 1940 relation: main_file success: 1 - access_level: open_access checksum: 759f9649c3919f4c4ad37a1d104ea32a content_type: application/zip creator: akerschb date_created: 2026-06-15T22:02:07Z date_updated: 2026-06-15T22:02:07Z file_id: '22011' file_name: Soliton_Data.zip file_size: 13259747 relation: main_file success: 1 file_date_updated: 2026-06-15T22:02:07Z fulldoi: https://doi.org/10.15479/AT-ISTA-21960 has_accepted_license: '1' license: https://creativecommons.org/licenses/by-nc/4.0/ month: '06' oa: 1 oa_version: Published Version project: - _id: fc2ed2f7-9c52-11eb-aca3-c01059dda49c call_identifier: H2020 grant_number: '101034413' name: 'IST-BRIDGE: International postdoctoral program' publisher: Institute of Science and Technology Austria related_material: record: - id: '22408' relation: used_in_publication status: public status: public title: 'Research Data: "Quasi-solitons in Rydberg atom chains"' tmp: image: /images/cc_by_nc.png legal_code_url: https://creativecommons.org/licenses/by-nc/4.0/legalcode name: Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) short: CC BY-NC (4.0) type: research_data user_id: 68b8ca59-c5b3-11ee-8790-cd641c68093d year: '2026' ...