--- OA_place: repository OA_type: green _id: '21737' abstract: - lang: eng text: In calculus, l'Hopital's rule provides a simple way to evaluate the limits of quotient functions when both the numerator and denominator vanish. But what happens when we move beyond real functions on a real interval? In this article, we study when the quotient of two complex-valued functions in higher dimension can be defined continuously at the points where both functions vanish. Surprisingly, the answer is far subtler than in the real-valued setting. We provide a complete characterization for the continuity of the quotient function. We also point out why extending this result to smoother quotients remains an intriguing challenge. acknowledgement: "This project was funded in part by the European Research Council (ERC Consolidator Grant 101045083 CoDiNA) and the National Science Foundation CAREER Award 2239062.\r\n" article_number: '2602.09958' article_processing_charge: No arxiv: 1 author: - first_name: Albert full_name: Chern, Albert last_name: Chern - first_name: Sadashige full_name: Ishida, Sadashige id: 6F7C4B96-A8E9-11E9-A7CA-09ECE5697425 last_name: Ishida orcid: 0000-0002-3121-3100 citation: ama: Chern A, Ishida S. L’Hopital rules for complex-valued functions in higher dimensions. arXiv. doi:10.48550/ARXIV.2602.09958 apa: Chern, A., & Ishida, S. (n.d.). L’Hopital rules for complex-valued functions in higher dimensions. arXiv. https://doi.org/10.48550/ARXIV.2602.09958 chicago: Chern, Albert, and Sadashige Ishida. “L’Hopital Rules for Complex-Valued Functions in Higher Dimensions.” ArXiv, n.d. https://doi.org/10.48550/ARXIV.2602.09958. ieee: A. Chern and S. Ishida, “L’Hopital rules for complex-valued functions in higher dimensions,” arXiv. . ista: Chern A, Ishida S. L’Hopital rules for complex-valued functions in higher dimensions. arXiv, 2602.09958. mla: Chern, Albert, and Sadashige Ishida. “L’Hopital Rules for Complex-Valued Functions in Higher Dimensions.” ArXiv, 2602.09958, doi:10.48550/ARXIV.2602.09958. short: A. Chern, S. Ishida, ArXiv (n.d.). corr_author: '1' date_created: 2026-04-15T16:28:24Z date_published: 2026-02-10T00:00:00Z date_updated: 2026-04-28T10:56:30Z day: '10' ddc: - '510' department: - _id: GradSch - _id: ChWo doi: 10.48550/ARXIV.2602.09958 external_id: arxiv: - '2602.09958' file: - access_level: open_access checksum: 6a76591c723d3e949ad5afa9f7dbb2ee content_type: application/pdf creator: dernst date_created: 2026-04-28T10:53:27Z date_updated: 2026-04-28T10:53:27Z file_id: '21771' file_name: 2026_arXiv_2602.09958.pdf file_size: 867109 relation: main_file success: 1 file_date_updated: 2026-04-28T10:53:27Z fulldoi: https://doi.org/10.48550/ARXIV.2602.09958 has_accepted_license: '1' keyword: - l’Hopital theorem - complex functions language: - iso: eng month: '02' oa: 1 oa_version: Preprint project: - _id: 34bc2376-11ca-11ed-8bc3-9a3b3961a088 grant_number: '101045083' name: Computational Discovery of Numerical Algorithms for Animation and Simulation of Natural Phenomena publication: arXiv publication_status: submitted status: public title: L'Hopital rules for complex-valued functions in higher dimensions 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: preprint user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2026' ... --- DOAJ_listed: '1' OA_place: publisher OA_type: gold _id: '21745' abstract: - lang: eng text: 'The small DAHe and DAe spectral classes comprise isolated, hydrogen-dominated atmosphere white dwarfs that exhibit variable photometric flux and Balmer line emission. These mysterious systems offer unique insight into the complex interplay between magnetic fields, stellar rotation and atmospheric activity in single white dwarfs. DAHe stars have detectable magnetic fields through Zeeman-split spectral lines, whereas DAe stars lack such splitting. We report the first discovery and characterization of magnetism in the DAe white dwarf WD J165335.21−100116.33 with new time-resolved spectropolarimetry from FORS2. We detect a weak but variable longitudinal magnetic field with values Bz > −9.2 ± 2.4 kG and Bz < −2.2 ± 1.0 kG. Independent ZTF and ATLAS photometry reveal a consistent period of P = 80.3070 ± 0.0007 h. Time-resolved optical spectroscopy obtained with six ground-based instruments demonstrates strong modulation in the strength of the Hα and Hβ Balmer line emission with P = 80.2922 ± 0.0108 h. The photometric flux and Balmer emission strength vary in antiphase, with the strongest magnetic detections coinciding with phases of low photometric flux and strong line emission. These characteristicssupport the theory that a magnetically active, temperature-inverted spot/region is producing an optically thin chromospheric emission region. Comparison with other DAe and DAHe white dwarfsreveals all systems have a strikingly similar antiphase phenomenology, reinforcing the theory that they are subject to a unified physical mechanism. With the detection of a weak magnetic field, we reclassify WD J165335.21−100116.33 as a low-field DAHe white dwarf. ' acknowledgement: "This project has received funding from the European Research Council under the European Union’s Horizon 2020 research and innovation programme (Grant agreement numbers 101002408). The observationsfrom the FOcal Reducer/low dispersion Spectrograph 2 (FORS2) instrument were collected at the European Southern Observatory (ESO) under ESO programme(s) 113.26ES.001. This work has made use of data from the European Space\r\nAgency (ESA) mission Gaia (https://www.cosmos.esa.int/gaia), processed by the Gaia Data Processing and Analysis Consortium (DPAC, https://www.cosmos.esa.int/web/gaia/dpac/conso\r\nrtium). Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement. Based on observations obtained with the Samuel Oschin Telescope 48-inch and the 60-inch Telescope at the Palomar Observatory as part of the Zwicky Transient Facility project. ZTF is supported by the National Science Foundation under Grants No. AST-1440341 and AST-2034437 and a collaboration including current partners Caltech, IPAC, the Weizmann Institute for Science, the Oskar Klein Center at Stockholm University, the University of Maryland, Deutsches Elektronen-Synchrotron and\r\nHumboldt University, the TANGO Consortium of Taiwan, the University of Wisconsin at Milwaukee, Trinity College Dublin, Lawrence Livermore National Laboratories, IN2P3, University\r\nof Warwick, Ruhr University Bochum, Northwestern University and former partners the University of Washington, Los Alamos National Laboratories, and Lawrence Berkeley National Laboratories. Operations are conducted by COO, IPAC, and UW. This work has made use of data from the Asteroid Terrestrialimpact Last Alert System (ATLAS) project. The Asteroid Terrestrial-impact Last Alert System (ATLAS) project is primarily funded to search for near earth asteroids through NASA grants NN12AR55G, 80NSSC18K0284, and 80NSSC18K1575; byproducts of the NEO search include images and catalogs from the survey area. This work was partially funded by Kepler/K2 grant J1944/80NSSC19K0112 and HST GO-15889, and STFC grants ST/T000198/1 and ST/S006109/1. The ATLAS science products have been made possible through the contributions of the University of Hawaii Institute for Astronomy, the Queen’s University Belfast, the Space Telescope Science Institute, the South African\r\nAstronomical Observatory, and The Millennium Institute of Astrophysics (MAS), Chile.\r\nThis work makes use of observations from the Las Cumbres Observatory global telescope network. Research at Lick Observatory is partially supported by a generous gift from Google. A major upgrade of the Kast spectrograph on the Shane 3 m telescope at Lick Observatory was made possible through generous gifts from William and Marina Kast as well as the Heising–Simons Foundation. The Isaac Newton Telescope is operated on the island of La Palma by the Isaac Newton Group of Telescopes in the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofísica de Canarias.This paper includes data gathered with the 6.5 meter Magellan Telescopes located at Las Campanas Observatory, Chile. Observations reported here were obtained at the Multiple Mirror Telescope (MMT) Observatory, a joint facility of the Smithsonian Institution and the University of Arizona. Based on observations collected at Centro Astronómico Hispano en Andalucía (CAHA) at Calar Alto, operated jointly by Junta de Andalucía and Consejo Superior de Investigaciones Científicas (IAA-CSIC)." article_number: stag505 article_processing_charge: Yes article_type: original arxiv: 1 author: - first_name: Abbigail K. full_name: Elms, Abbigail K. last_name: Elms - first_name: Stefano full_name: Bagnulo, Stefano last_name: Bagnulo - first_name: Pier Emmanuel full_name: Tremblay, Pier Emmanuel last_name: Tremblay - first_name: Tim full_name: Cunningham, Tim last_name: Cunningham - first_name: James full_name: Munday, James last_name: Munday - first_name: John full_name: Landstreet, John last_name: Landstreet - first_name: Kareem full_name: El-Badry, Kareem last_name: El-Badry - first_name: Ilaria full_name: Caiazzo, Ilaria id: 8ae5b6e7-2a03-11ee-914d-b58ed7a3b47d last_name: Caiazzo orcid: 0000-0002-4770-5388 - first_name: Carl full_name: Melis, Carl last_name: Melis - first_name: Viktoria full_name: Pinter, Viktoria last_name: Pinter - first_name: Alycia full_name: Weinberger, Alycia last_name: Weinberger citation: ama: Elms AK, Bagnulo S, Tremblay PE, et al. Detection of a weak magnetic field in the Balmer emission line white dwarf WDJ1653−1001. Monthly Notices of the Royal Astronomical Society. 2026;548(1). doi:10.1093/mnras/stag505 apa: Elms, A. K., Bagnulo, S., Tremblay, P. E., Cunningham, T., Munday, J., Landstreet, J., … Weinberger, A. (2026). Detection of a weak magnetic field in the Balmer emission line white dwarf WDJ1653−1001. Monthly Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stag505 chicago: Elms, Abbigail K., Stefano Bagnulo, Pier Emmanuel Tremblay, Tim Cunningham, James Munday, John Landstreet, Kareem El-Badry, et al. “Detection of a Weak Magnetic Field in the Balmer Emission Line White Dwarf WDJ1653−1001.” Monthly Notices of the Royal Astronomical Society. Oxford University Press, 2026. https://doi.org/10.1093/mnras/stag505. ieee: A. K. Elms et al., “Detection of a weak magnetic field in the Balmer emission line white dwarf WDJ1653−1001,” Monthly Notices of the Royal Astronomical Society, vol. 548, no. 1. Oxford University Press, 2026. ista: Elms AK, Bagnulo S, Tremblay PE, Cunningham T, Munday J, Landstreet J, El-Badry K, Caiazzo I, Melis C, Pinter V, Weinberger A. 2026. Detection of a weak magnetic field in the Balmer emission line white dwarf WDJ1653−1001. Monthly Notices of the Royal Astronomical Society. 548(1), stag505. mla: Elms, Abbigail K., et al. “Detection of a Weak Magnetic Field in the Balmer Emission Line White Dwarf WDJ1653−1001.” Monthly Notices of the Royal Astronomical Society, vol. 548, no. 1, stag505, Oxford University Press, 2026, doi:10.1093/mnras/stag505. short: A.K. Elms, S. Bagnulo, P.E. Tremblay, T. Cunningham, J. Munday, J. Landstreet, K. El-Badry, I. Caiazzo, C. Melis, V. Pinter, A. Weinberger, Monthly Notices of the Royal Astronomical Society 548 (2026). date_created: 2026-04-19T22:07:42Z date_published: 2026-05-01T00:00:00Z date_updated: 2026-05-04T12:11:53Z day: '01' ddc: - '520' department: - _id: IlCa doi: 10.1093/mnras/stag505 external_id: arxiv: - '2603.12048' file: - access_level: open_access checksum: 75c48d70d10a9a48875f577e04da80bc content_type: application/pdf creator: dernst date_created: 2026-05-04T12:10:40Z date_updated: 2026-05-04T12:10:40Z file_id: '21794' file_name: 2026_MNRAS_Elms.pdf file_size: 4991495 relation: main_file success: 1 file_date_updated: 2026-05-04T12:10:40Z fulldoi: https://doi.org/10.1093/mnras/stag505 has_accepted_license: '1' intvolume: ' 548' issue: '1' language: - iso: eng month: '05' oa: 1 oa_version: Published Version publication: Monthly Notices of the Royal Astronomical Society publication_identifier: eissn: - 1365-2966 issn: - 0035-8711 publication_status: published publisher: Oxford University Press quality_controlled: '1' scopus_import: '1' status: public title: Detection of a weak magnetic field in the Balmer emission line white dwarf WDJ1653−1001 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: 548 year: '2026' ... --- DOAJ_listed: '1' OA_place: publisher OA_type: gold PlanS_conform: '1' _id: '21747' abstract: - lang: eng text: Entanglement does not always require one particle per party. It was predicted some 30 years ago that a single photon traversing a beam splitter could violate a Bell inequality. Although initially debated, single-photon nonlocality was eventually demonstrated via homodyne measurements. Here, we present an alternate realization that avoids the complexity of homodyne measurements and potential loopholes in their implementation. We violate a Bell inequality by performing joint measurements on two copies of the same single-photon entangled state, where one photon acts as a phase reference for the other, making it self-referential. We observe CHSH parameters of 2.71 = 0.09 and 2.23 = 0.07, depending on the joint measurements implemented. This offers a perspective on single-photon nonlocality and a more accessible experimental route, potentially applicable to general mode-entangled states in diverse platforms. acknowledgement: European Union ERC (101071779 (GRAVITES)); European Union Horizon 2020 Research and Innovation Programme (899368 (EPIQUS)); European Union Horizon 2020 Research and Innovation Programme Marie Sklodowska-Curie (956071 (AppQInfo)); European Union HORIZON Europe Research and Innovation Programme (101135288 (EPIQUE)); FWF Austrian Science Fund (10.55776/COE1 (Quantum Science Austria), 10.55776/F71 (BeyondC), 10.55776/FG5 (Research Group 5)); United States Air Force Office of Scientific Research (FA9550-21-1-0355 (Q-Trust), FA8655-23-1-7063 (TIQI)). article_processing_charge: Yes article_type: original arxiv: 1 author: - first_name: Daniel full_name: Kun, Daniel last_name: Kun - first_name: Karl T full_name: Strömberg, Karl T id: 68011cd2-da32-11ee-a930-b2774c7aba5f last_name: Strömberg - first_name: Borivoje full_name: Dakić, Borivoje last_name: Dakić - first_name: Philip full_name: Walther, Philip last_name: Walther - first_name: Lee A. full_name: Rozema, Lee A. last_name: Rozema citation: ama: Kun D, Strömberg KT, Dakić B, Walther P, Rozema LA. Testing single-photon entanglement using self-referential measurements. Optica. 2026;13(4):745-751. doi:10.1364/OPTICA.586172 apa: Kun, D., Strömberg, K. T., Dakić, B., Walther, P., & Rozema, L. A. (2026). Testing single-photon entanglement using self-referential measurements. Optica. Optica Publishing Group. https://doi.org/10.1364/OPTICA.586172 chicago: Kun, Daniel, Karl T Strömberg, Borivoje Dakić, Philip Walther, and Lee A. Rozema. “Testing Single-Photon Entanglement Using Self-Referential Measurements.” Optica. Optica Publishing Group, 2026. https://doi.org/10.1364/OPTICA.586172. ieee: D. Kun, K. T. Strömberg, B. Dakić, P. Walther, and L. A. Rozema, “Testing single-photon entanglement using self-referential measurements,” Optica, vol. 13, no. 4. Optica Publishing Group, pp. 745–751, 2026. ista: Kun D, Strömberg KT, Dakić B, Walther P, Rozema LA. 2026. Testing single-photon entanglement using self-referential measurements. Optica. 13(4), 745–751. mla: Kun, Daniel, et al. “Testing Single-Photon Entanglement Using Self-Referential Measurements.” Optica, vol. 13, no. 4, Optica Publishing Group, 2026, pp. 745–51, doi:10.1364/OPTICA.586172. short: D. Kun, K.T. Strömberg, B. Dakić, P. Walther, L.A. Rozema, Optica 13 (2026) 745–751. date_created: 2026-04-19T22:07:44Z date_published: 2026-04-20T00:00:00Z date_updated: 2026-05-05T12:05:47Z day: '20' ddc: - '530' department: - _id: OnHo doi: 10.1364/OPTICA.586172 external_id: arxiv: - '2511.21819' file: - access_level: open_access checksum: f6e62a93f274e0c07197bf4e457eff31 content_type: application/pdf creator: dernst date_created: 2026-05-05T12:01:08Z date_updated: 2026-05-05T12:01:08Z file_id: '21799' file_name: 2026_Optica_Kun.pdf file_size: 858539 relation: main_file success: 1 file_date_updated: 2026-05-05T12:01:08Z fulldoi: https://doi.org/10.1364/OPTICA.586172 has_accepted_license: '1' intvolume: ' 13' issue: '4' language: - iso: eng month: '04' oa: 1 oa_version: Published Version page: 745-751 project: - _id: bdb108fd-d553-11ed-ba76-83dc74a9864f grant_number: F07105 name: QUANTUM INFORMATION SYSTEMS BEYOND CLASSICAL CAPABILITIES / P5- Integration of Superconducting Quantum Circuits publication: Optica publication_identifier: eissn: - 2334-2536 publication_status: published publisher: Optica Publishing Group quality_controlled: '1' scopus_import: '1' status: public title: Testing single-photon entanglement using self-referential measurements 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: 13 year: '2026' ... --- OA_place: publisher OA_type: hybrid PlanS_conform: '1' _id: '21748' abstract: - lang: eng text: Cells are defined by lipid membranes that differ in their structure across the tree of life. While the membranes of most bacteria and eukaryotes consist of single-headed bilayer lipids, the membranes of archaea are composed of mixtures of single-headed bilayer lipids and double-headed bolalipids. Archaeal bolalipids can adopt straight or u-shaped conformations, enabling them—together with bilayer lipids—to control whether membranes form bilayer or monolayer structures. Yet, the physical principles governing archaeal membranes remain largely unexplored, especially how membrane structure couples to externally imposed curvature during membrane remodeling. Here, we perform coarse-grained molecular dynamics simulations of toroidal vesicles to systematically probe the effects of all relevant combinations of mean and Gaussian curvatures on shape stability and lipid organization. We find that soft bilayer membranes can sustain all curvatures induced, whereas rigid bolalipid monolayer membranes either transition to different vesicle shapes or rupture. Bilayer-mimicking u-shaped bolalipids and bilayer lipids are spatially accumulated in regions of high mean membrane curvature independent of Gaussian curvature. Our work identifies curvature–composition coupling as a physical signature of archaeal membrane remodeling. acknowledgement: F.F. acknowledges the financial support from the NOMIS foundation. M.A. and A.Š. acknowledge the funding from the Volkswagen Foundation (Grant No. Az 96727). A.Š. acknowledges the funding from ERC Starting Grant “NEPA” (Grant No. 802960) and the Vallee Scholarship. article_number: '144902' article_processing_charge: Yes (in subscription journal) article_type: original arxiv: 1 author: - first_name: Felix F full_name: Frey, Felix F id: a0270b37-8f1a-11ec-95c7-8e710c59a4f3 last_name: Frey orcid: 0000-0001-8501-6017 - first_name: Miguel full_name: Santana de Freitas Amaral, Miguel id: 4f2d02dd-47a9-11ec-ad10-82820ed3f501 last_name: Santana de Freitas Amaral - first_name: Anđela full_name: Šarić, Anđela id: bf63d406-f056-11eb-b41d-f263a6566d8b last_name: Šarić orcid: 0000-0002-7854-2139 citation: ama: 'Frey FF, Santana de Freitas Amaral M, Šarić A. Cracking donuts and sorting lipids: Geometry controls archaeal membrane stability and lipid organization. Journal of Chemical Physics. 2026;164(14). doi:10.1063/5.0325170' apa: 'Frey, F. F., Santana de Freitas Amaral, M., & Šarić, A. (2026). Cracking donuts and sorting lipids: Geometry controls archaeal membrane stability and lipid organization. Journal of Chemical Physics. AIP Publishing. https://doi.org/10.1063/5.0325170' chicago: 'Frey, Felix F, Miguel Santana de Freitas Amaral, and Anđela Šarić. “Cracking Donuts and Sorting Lipids: Geometry Controls Archaeal Membrane Stability and Lipid Organization.” Journal of Chemical Physics. AIP Publishing, 2026. https://doi.org/10.1063/5.0325170.' ieee: 'F. F. Frey, M. Santana de Freitas Amaral, and A. Šarić, “Cracking donuts and sorting lipids: Geometry controls archaeal membrane stability and lipid organization,” Journal of Chemical Physics, vol. 164, no. 14. AIP Publishing, 2026.' ista: 'Frey FF, Santana de Freitas Amaral M, Šarić A. 2026. Cracking donuts and sorting lipids: Geometry controls archaeal membrane stability and lipid organization. Journal of Chemical Physics. 164(14), 144902.' mla: 'Frey, Felix F., et al. “Cracking Donuts and Sorting Lipids: Geometry Controls Archaeal Membrane Stability and Lipid Organization.” Journal of Chemical Physics, vol. 164, no. 14, 144902, AIP Publishing, 2026, doi:10.1063/5.0325170.' short: F.F. Frey, M. Santana de Freitas Amaral, A. Šarić, Journal of Chemical Physics 164 (2026). corr_author: '1' date_created: 2026-04-19T22:07:45Z date_published: 2026-04-14T00:00:00Z date_updated: 2026-05-05T12:40:41Z day: '14' ddc: - '540' department: - _id: AnSa doi: 10.1063/5.0325170 ec_funded: 1 external_id: arxiv: - '2603.15170' file: - access_level: open_access checksum: 2e10c4f4531676e0771ef3730e4b63a9 content_type: application/pdf creator: dernst date_created: 2026-05-05T12:35:24Z date_updated: 2026-05-05T12:35:24Z file_id: '21801' file_name: 2026_JourChemPhysics_Frey.pdf file_size: 8764791 relation: main_file success: 1 file_date_updated: 2026-05-05T12:35:24Z fulldoi: https://doi.org/10.1063/5.0325170 has_accepted_license: '1' intvolume: ' 164' issue: '14' language: - iso: eng month: '04' oa: 1 oa_version: Published Version project: - _id: eba2549b-77a9-11ec-83b8-a81e493eae4e call_identifier: H2020 grant_number: '802960' name: 'Non-Equilibrium Protein Assembly: from Building Blocks to Biological Machines' publication: Journal of Chemical Physics publication_identifier: eissn: - 1089-7690 issn: - ' 0021-9606' publication_status: published publisher: AIP Publishing quality_controlled: '1' related_material: record: - id: '21800' relation: research_data status: public scopus_import: '1' status: public title: 'Cracking donuts and sorting lipids: Geometry controls archaeal membrane stability and lipid organization' 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: 164 year: '2026' ... --- OA_place: repository OA_type: green _id: '21749' abstract: - lang: eng text: The collagen triple helix assembles hierarchically into bundled oligomers, solvated networks, and fibers. Synthetic peptide assemblies, driven by supramolecular interactions, can form single triple helices through intrahelical amino acid pairs; however, the principles guiding interhelical associations into higher-order structures remain unclear. Here, we incorporate cation−π and electrostatic charge pairs to probe interhelical interactions and elucidate the mechanisms driving triple helix assembly into fibrils, nanotubes, and nanosheets. Introducing cation−π pairs into a fibrillating collagen mimetic resulted in D-periodic fibrils with pH-sensitive gelation. By alternating the presentation of electrostatic and cation−π pairs, the assembly of another D-periodic fibril featuring inner and outer triple-helical layers was resolved by cryo electron microscopy to a resolution of 8 Å. At physiological pH, antiparallel association of these triple helices leads to the formation of nanotubes. The packing behavior of triple helices correlates with the interhelical interactions, where parallel associations favor fibril formation and antiparallel interactions drive nanotube and nanosheet assembly. These self-assembling triple-helical peptides demonstrate how packing of higher-order structures can be tailored with supramolecular interactions and establish the relationship of different hierarchical collagen-mimetic assemblies as pH-dependent. acknowledgement: The authors acknowledge Crispin Hetherington and L. Tracy Yu for their technical assistance and insights. This work was funded in part by the National Science Foundation (CHE 2203937), the National Science Foundation Graduate Research Fellowship (Grant No. 1842494), the Welch Foundation (C-2141), the Swedish Research Council (2020-04633), and the NIH (GM122510). This work benefited from using the SasView application, originally developed under NSF award DMR-0520547. SasView contains code developed with funding from the European Union’s Horizon 2020 research and innovation program under the SINE2020 project, Grant Agreement No. 654000. This work was partly done using the Shared Equipment Authority resources at Rice University. article_processing_charge: No article_type: original author: - first_name: Carson C. full_name: Cole, Carson C. last_name: Cole - first_name: Mark A.B. full_name: Kreutzberger, Mark A.B. last_name: Kreutzberger - first_name: Kevin full_name: Klein, Kevin id: 1e7ede04-9e54-11f0-9ec4-8d4d5563c398 last_name: Klein - first_name: Kiana A. full_name: Cahue, Kiana A. last_name: Cahue - first_name: Brett H. full_name: Pogostin, Brett H. last_name: Pogostin - first_name: Adam C. full_name: Farsheed, Adam C. last_name: Farsheed - first_name: Joseph W.R. full_name: Swain, Joseph W.R. last_name: Swain - first_name: Thi H. full_name: Bui, Thi H. last_name: Bui - first_name: Arghadip full_name: Dey, Arghadip last_name: Dey - first_name: Jonathan T. full_name: Makhoul, Jonathan T. last_name: Makhoul - first_name: Marija full_name: Dubackic, Marija last_name: Dubackic - first_name: Antara full_name: Pal, Antara last_name: Pal - first_name: Ulf full_name: Olsson, Ulf last_name: Olsson - first_name: Anđela full_name: Šarić, Anđela id: bf63d406-f056-11eb-b41d-f263a6566d8b last_name: Šarić orcid: 0000-0002-7854-2139 - first_name: Edward H. full_name: Egelman, Edward H. last_name: Egelman - first_name: Jeffrey D. full_name: Hartgerink, Jeffrey D. last_name: Hartgerink citation: ama: Cole CC, Kreutzberger MAB, Klein K, et al. Supramolecular assembly of collagen-mimetic eptide D-periodic fibrils and nanoassemblies. Biomacromolecules. 2026;27(4):2956-2965. doi:10.1021/acs.biomac.6c00345 apa: Cole, C. C., Kreutzberger, M. A. B., Klein, K., Cahue, K. A., Pogostin, B. H., Farsheed, A. C., … Hartgerink, J. D. (2026). Supramolecular assembly of collagen-mimetic eptide D-periodic fibrils and nanoassemblies. Biomacromolecules. American Chemical Society. https://doi.org/10.1021/acs.biomac.6c00345 chicago: Cole, Carson C., Mark A.B. Kreutzberger, Kevin Klein, Kiana A. Cahue, Brett H. Pogostin, Adam C. Farsheed, Joseph W.R. Swain, et al. “Supramolecular Assembly of Collagen-Mimetic Eptide D-Periodic Fibrils and Nanoassemblies.” Biomacromolecules. American Chemical Society, 2026. https://doi.org/10.1021/acs.biomac.6c00345. ieee: C. C. Cole et al., “Supramolecular assembly of collagen-mimetic eptide D-periodic fibrils and nanoassemblies,” Biomacromolecules, vol. 27, no. 4. American Chemical Society, pp. 2956–2965, 2026. ista: Cole CC, Kreutzberger MAB, Klein K, Cahue KA, Pogostin BH, Farsheed AC, Swain JWR, Bui TH, Dey A, Makhoul JT, Dubackic M, Pal A, Olsson U, Šarić A, Egelman EH, Hartgerink JD. 2026. Supramolecular assembly of collagen-mimetic eptide D-periodic fibrils and nanoassemblies. Biomacromolecules. 27(4), 2956–2965. mla: Cole, Carson C., et al. “Supramolecular Assembly of Collagen-Mimetic Eptide D-Periodic Fibrils and Nanoassemblies.” Biomacromolecules, vol. 27, no. 4, American Chemical Society, 2026, pp. 2956–65, doi:10.1021/acs.biomac.6c00345. short: C.C. Cole, M.A.B. Kreutzberger, K. Klein, K.A. Cahue, B.H. Pogostin, A.C. Farsheed, J.W.R. Swain, T.H. Bui, A. Dey, J.T. Makhoul, M. Dubackic, A. Pal, U. Olsson, A. Šarić, E.H. Egelman, J.D. Hartgerink, Biomacromolecules 27 (2026) 2956–2965. date_created: 2026-04-19T22:07:46Z date_published: 2026-04-13T00:00:00Z date_updated: 2026-05-06T05:43:44Z day: '13' department: - _id: AnSa doi: 10.1021/acs.biomac.6c00345 fulldoi: https://doi.org/10.1021/acs.biomac.6c00345 intvolume: ' 27' issue: '4' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1101/2025.02.15.637692 month: '04' oa: 1 oa_version: Preprint page: 2956-2965 publication: Biomacromolecules publication_identifier: eissn: - 1526-4602 publication_status: published publisher: American Chemical Society quality_controlled: '1' scopus_import: '1' status: public title: Supramolecular assembly of collagen-mimetic eptide D-periodic fibrils and nanoassemblies type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 27 year: '2026' ... --- DOAJ_listed: '1' OA_place: publisher OA_type: gold _id: '21750' abstract: - lang: eng text: Liquid-like superionic conductors, with highly mobile ions in a rigid framework, offer intrinsically low lattice thermal conductivity without compromising electronic transport. Argyrodite-type Ag8SnSe6 exhibits a melt-like Ag sublattice that drives lattice thermal conductivity (κL) below 0.2 watts per meter per kelvin, yet its low carrier concentration limits the power factor. Here, interstitial Ag atoms raise the Fermi level into the conduction band, substantially increasing the electron concentration. Simultaneously, the formation of a secondary Ag2Se phase generates lattice distortions that enhance phonon scattering. A pronounced mismatch between electronic (~200 nanometers) and phononic (~0.22 nanometers) mean free paths decouples charge and heat transport, enabling concurrent suppression of κL and retention of high electrical conductivity. This coupled electronic-phononic modulation yields a record ZT of 0.72 at ambient temperature and a peak ZT of 1.1 at 735 kelvins, with an average ZTavg of 0.72 over 320 to 735 kelvins. A unicouple device achieves 6.3% efficiency under a 357-kelvin gradient, highlighting a practical strategy for high-performance midtemperature thermoelectrics. acknowledged_ssus: - _id: LifeSc acknowledgement: The Scientific Service Units (SSU) of ISTA supported this research through resources provided by the Lab Support Facility (LSF). This work was supported by the National Key R&D Program of China grant 2024YFE0105200 (to C.S.), National Natural Science Foundation of China grant 12504038 (to M.L.), China Postdoctoral Science Foundation grant 2023M743151 (to M.L.), Natural Science Foundation of Henan Province grant 252300421763 (to M.L.), Key Scientific Research Project of Higher Education Institutions in Henan Province grant 25A140004 (to M.L.), National Natural Science Foundation of China grant 12204156 (to D.W.), China Postdoctoral Science Foundation grant 2023TQ0315 and 2023 M743224 (to D.W.), Generalitat de Catalunya grant 2021SGR00457 (to J.A.), and European Regional Development Fund grants ENE2016-77798-C4-3-R, PID2020-116093RB-C43, and AEI/10.13039/501100011033 (to A.C.). This work also was financially supported by ISTA and the Werner Siemens Foundation (to M.I.). article_number: eaec9073 article_processing_charge: Yes article_type: original author: - first_name: Mengyao full_name: Li, Mengyao last_name: Li - first_name: Xueke full_name: Zhao, Xueke last_name: Zhao - first_name: Yu full_name: Zhang, Yu last_name: Zhang - first_name: Jing full_name: Yu, Jing last_name: Yu - first_name: Xuyang full_name: Liu, Xuyang last_name: Liu - first_name: Mochen full_name: Jia, Mochen last_name: Jia - first_name: Hongzhang full_name: Song, Hongzhang last_name: Song - first_name: Dongyang full_name: Wang, Dongyang last_name: Wang - first_name: Jordi full_name: Arbiol, Jordi last_name: Arbiol - first_name: Maria full_name: Ibáñez, Maria id: 43C61214-F248-11E8-B48F-1D18A9856A87 last_name: Ibáñez orcid: 0000-0001-5013-2843 - first_name: Chongxin full_name: Shan, Chongxin last_name: Shan - first_name: Andreu full_name: Cabot, Andreu last_name: Cabot - first_name: Ziyu full_name: Wang, Ziyu last_name: Wang citation: ama: Li M, Zhao X, Zhang Y, et al. Electronic-phononic decoupling and Fermi-level tuning enable high thermoelectric performance in Ag8SnSe6. Science Advances. 2026;12(15). doi:10.1126/sciadv.aec9073 apa: Li, M., Zhao, X., Zhang, Y., Yu, J., Liu, X., Jia, M., … Wang, Z. (2026). Electronic-phononic decoupling and Fermi-level tuning enable high thermoelectric performance in Ag8SnSe6. Science Advances. AAAS. https://doi.org/10.1126/sciadv.aec9073 chicago: Li, Mengyao, Xueke Zhao, Yu Zhang, Jing Yu, Xuyang Liu, Mochen Jia, Hongzhang Song, et al. “Electronic-Phononic Decoupling and Fermi-Level Tuning Enable High Thermoelectric Performance in Ag8SnSe6.” Science Advances. AAAS, 2026. https://doi.org/10.1126/sciadv.aec9073. ieee: M. Li et al., “Electronic-phononic decoupling and Fermi-level tuning enable high thermoelectric performance in Ag8SnSe6,” Science Advances, vol. 12, no. 15. AAAS, 2026. ista: Li M, Zhao X, Zhang Y, Yu J, Liu X, Jia M, Song H, Wang D, Arbiol J, Ibáñez M, Shan C, Cabot A, Wang Z. 2026. Electronic-phononic decoupling and Fermi-level tuning enable high thermoelectric performance in Ag8SnSe6. Science Advances. 12(15), eaec9073. mla: Li, Mengyao, et al. “Electronic-Phononic Decoupling and Fermi-Level Tuning Enable High Thermoelectric Performance in Ag8SnSe6.” Science Advances, vol. 12, no. 15, eaec9073, AAAS, 2026, doi:10.1126/sciadv.aec9073. short: M. Li, X. Zhao, Y. Zhang, J. Yu, X. Liu, M. Jia, H. Song, D. Wang, J. Arbiol, M. Ibáñez, C. Shan, A. Cabot, Z. Wang, Science Advances 12 (2026). date_created: 2026-04-19T22:07:47Z date_published: 2026-04-10T00:00:00Z date_updated: 2026-05-06T06:08:27Z day: '10' ddc: - '530' department: - _id: MaIb doi: 10.1126/sciadv.aec9073 external_id: pmid: - '41961944' file: - access_level: open_access checksum: 9bd4546a23f218972f83164fb21003e1 content_type: application/pdf creator: dernst date_created: 2026-05-06T06:06:26Z date_updated: 2026-05-06T06:06:26Z file_id: '21802' file_name: 2026_ScienceAdv_Li.pdf file_size: 3727993 relation: main_file success: 1 file_date_updated: 2026-05-06T06:06:26Z fulldoi: https://doi.org/10.1126/sciadv.aec9073 has_accepted_license: '1' intvolume: ' 12' issue: '15' language: - iso: eng month: '04' oa: 1 oa_version: Published Version pmid: 1 project: - _id: 9B8F7476-BA93-11EA-9121-9846C619BF3A name: 'HighTE: The Werner Siemens Laboratory for the High Throughput Discovery of Semiconductors for Waste Heat Recovery' publication: Science Advances publication_identifier: eissn: - 2375-2548 publication_status: published publisher: AAAS quality_controlled: '1' scopus_import: '1' status: public title: Electronic-phononic decoupling and Fermi-level tuning enable high thermoelectric performance in Ag8SnSe6 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: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 12 year: '2026' ... --- OA_place: publisher OA_type: hybrid PlanS_conform: '1' _id: '21752' abstract: - lang: eng text: Epithelial tissues function as multicellular communities that preserve tissue integrity while adapting to diverse environmental stresses by altering cell behaviors. A striking manifestation of such adaptability is cell plasticity, the ability of differentiated cells to revert to stem-like states or adopt alternative fates. Once considered rare and confined to highly regenerative species, cell plasticity is now recognized across the metazoan tree. In early-branching animals such as sponges and cnidarians, transdifferentiation and dedifferentiation are integral to life-cycle transitions and regeneration, whereas in more complex organisms, these processes typically emerge under stress, including stem cell loss or environmental perturbations. Here, we examine epithelial cell plasticity through evolutionary, cellular, and molecular perspectives. Focusing on the intestinal epithelium, we explore findings from mammalian and Drosophila models showing that progenitors and even terminally differentiated cells can dedifferentiate in response to external stimuli that disrupt homeostasis, such as pathogen infection and nutrient fluctuations. We further discuss conserved mechanisms involving intercellular signaling (e.g., Notch, EGFR, and JAK-STAT) and chromatin states primed for reprogramming, modulated by metabolic cues. Together, these insights position cell plasticity as an ancient environmental adaptation strategy, shaped by conserved molecular toolkits and refined by species- and cell lineage-specific innovations. acknowledgement: This work was supported by JSPS/MEXT KAKENHI (grant numbers JP22J01430 to H.N., JP23H04696, JP23K24025, JP25H02543, JP25K02406 to Y.N.), JST FOREST Program JPMJFR233E (Y.N.), The Cell Science Research Foundation (Y.N.), and Takeda Science Foundation (Y.N.). article_number: '103670' article_processing_charge: Yes (in subscription journal) article_type: review author: - first_name: Hiroki full_name: Nagai, Hiroki id: 608df3e6-e2ab-11ed-8890-c9318cec7da4 last_name: Nagai orcid: 0000-0003-1671-9434 - first_name: Yu Ichiro full_name: Nakajima, Yu Ichiro last_name: Nakajima citation: ama: 'NAGAI H, Nakajima YI. Epithelial cell plasticity in metazoans: Evolutionary insights into roles and mechanisms. Seminars in Cell and Developmental Biology. 2026;179-180. doi:10.1016/j.semcdb.2026.103670' apa: 'NAGAI, H., & Nakajima, Y. I. (2026). Epithelial cell plasticity in metazoans: Evolutionary insights into roles and mechanisms. Seminars in Cell and Developmental Biology. Elsevier. https://doi.org/10.1016/j.semcdb.2026.103670' chicago: 'NAGAI, HIROKI, and Yu Ichiro Nakajima. “Epithelial Cell Plasticity in Metazoans: Evolutionary Insights into Roles and Mechanisms.” Seminars in Cell and Developmental Biology. Elsevier, 2026. https://doi.org/10.1016/j.semcdb.2026.103670.' ieee: 'H. NAGAI and Y. I. Nakajima, “Epithelial cell plasticity in metazoans: Evolutionary insights into roles and mechanisms,” Seminars in Cell and Developmental Biology, vol. 179–180. Elsevier, 2026.' ista: 'NAGAI H, Nakajima YI. 2026. Epithelial cell plasticity in metazoans: Evolutionary insights into roles and mechanisms. Seminars in Cell and Developmental Biology. 179–180, 103670.' mla: 'NAGAI, HIROKI, and Yu Ichiro Nakajima. “Epithelial Cell Plasticity in Metazoans: Evolutionary Insights into Roles and Mechanisms.” Seminars in Cell and Developmental Biology, vol. 179–180, 103670, Elsevier, 2026, doi:10.1016/j.semcdb.2026.103670.' short: H. NAGAI, Y.I. Nakajima, Seminars in Cell and Developmental Biology 179–180 (2026). corr_author: '1' date_created: 2026-04-19T22:07:49Z date_published: 2026-05-01T00:00:00Z date_updated: 2026-04-28T14:11:13Z day: '01' ddc: - '570' department: - _id: XiFe doi: 10.1016/j.semcdb.2026.103670 file: - access_level: open_access checksum: 0a0929a045d0cbd964297768833c14ae content_type: application/pdf creator: dernst date_created: 2026-04-28T13:58:47Z date_updated: 2026-04-28T13:58:47Z file_id: '21775' file_name: 2026_SeminarsCellDevBiology_Nagai.pdf file_size: 1306613 relation: main_file success: 1 file_date_updated: 2026-04-28T13:58:47Z fulldoi: https://doi.org/10.1016/j.semcdb.2026.103670 has_accepted_license: '1' language: - iso: eng month: '05' oa: 1 oa_version: Published Version publication: Seminars in Cell and Developmental Biology publication_identifier: eissn: - 1096-3634 issn: - 1084-9521 publication_status: published publisher: Elsevier quality_controlled: '1' scopus_import: '1' status: public title: 'Epithelial cell plasticity in metazoans: Evolutionary insights into roles and mechanisms' 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: 179-180 year: '2026' ... --- DOAJ_listed: '1' OA_place: publisher OA_type: gold PlanS_conform: '1' _id: '21755' abstract: - lang: eng text: Tropical shallow clouds are a major source of uncertainty in Earth's climate sensitivity, especially through their spatial arrangement, which global climate models do not represent. Efforts to understand their organization have partly relied on classifying observed scenes, identifying four patterns as archetypal regimes. Here we analyze geostationary satellite imagery of the western tropical Atlantic using the L‐function, a tool based on point pattern theory that quantifies cloud organization across spatial scales. Classical examples of the four patterns show distinct L‐function fingerprints, revealing their characteristic clustering and regularity scales and aiding physical interpretation. Yet, when evaluating many scenes at fixed spatial scales, the L‐function distribution lacks the distinct modes expected from discrete regimes. This is corroborated by analyses of other organization indices employing diverse approaches, from inter‐cloud nearest‐neighbor distances to fractal analysis. Implications for the parameterization of mesoscale cloud organization in climate models are discussed. acknowledgement: GB was supported by an ICTP Postdoctoral Research Fellowship Agreement. GM was supported by the CNRS. AC was supported by the European Union's Horizon 2020 research and innovation programme Marie Sklodowska-Curie Grant agreement No 101034413. LJF acknowledges funding from the NERC Doctoral Training Partnership in Environmental Research Grant NE/S007474/1. We thank three anonymous reviewers and Jiawei Bao for their insightful comments, which greatly improved this manuscript. article_number: e2025GL119921 article_processing_charge: Yes article_type: original author: - first_name: Giovanni full_name: Biagioli, Giovanni last_name: Biagioli - first_name: Giulio full_name: Mandorli, Giulio last_name: Mandorli - first_name: Lilli Johanna full_name: Freischem, Lilli Johanna last_name: Freischem - first_name: Alejandro full_name: Casallas Garcia, Alejandro id: 92081129-2d75-11ef-a48d-b04dd7a2385a last_name: Casallas Garcia orcid: 0000-0002-1988-5035 - first_name: Adrian Mark full_name: Tompkins, Adrian Mark last_name: Tompkins citation: ama: 'Biagioli G, Mandorli G, Freischem LJ, Casallas Garcia A, Tompkins AM. Spatial patterns of shallow clouds: Challenging the concept of defined regimes. Geophysical Research Letters. 2026;53(8). doi:10.1029/2025gl119921' apa: 'Biagioli, G., Mandorli, G., Freischem, L. J., Casallas Garcia, A., & Tompkins, A. M. (2026). Spatial patterns of shallow clouds: Challenging the concept of defined regimes. Geophysical Research Letters. Wiley. https://doi.org/10.1029/2025gl119921' chicago: 'Biagioli, Giovanni, Giulio Mandorli, Lilli Johanna Freischem, Alejandro Casallas Garcia, and Adrian Mark Tompkins. “Spatial Patterns of Shallow Clouds: Challenging the Concept of Defined Regimes.” Geophysical Research Letters. Wiley, 2026. https://doi.org/10.1029/2025gl119921.' ieee: 'G. Biagioli, G. Mandorli, L. J. Freischem, A. Casallas Garcia, and A. M. Tompkins, “Spatial patterns of shallow clouds: Challenging the concept of defined regimes,” Geophysical Research Letters, vol. 53, no. 8. Wiley, 2026.' ista: 'Biagioli G, Mandorli G, Freischem LJ, Casallas Garcia A, Tompkins AM. 2026. Spatial patterns of shallow clouds: Challenging the concept of defined regimes. Geophysical Research Letters. 53(8), e2025GL119921.' mla: 'Biagioli, Giovanni, et al. “Spatial Patterns of Shallow Clouds: Challenging the Concept of Defined Regimes.” Geophysical Research Letters, vol. 53, no. 8, e2025GL119921, Wiley, 2026, doi:10.1029/2025gl119921.' short: G. Biagioli, G. Mandorli, L.J. Freischem, A. Casallas Garcia, A.M. Tompkins, Geophysical Research Letters 53 (2026). date_created: 2026-04-21T06:04:41Z date_published: 2026-04-28T00:00:00Z date_updated: 2026-04-28T13:35:53Z day: '28' ddc: - '550' department: - _id: CaMu doi: 10.1029/2025gl119921 ec_funded: 1 file: - access_level: open_access checksum: 2cd4ae120b14b244f5b2f50eaae0efc1 content_type: application/pdf creator: acasalla date_created: 2026-04-21T06:07:22Z date_updated: 2026-04-21T06:07:22Z file_id: '21756' file_name: Gio_Casallas_2026.pdf file_size: 1544417 relation: main_file success: 1 file_date_updated: 2026-04-21T06:07:22Z fulldoi: https://doi.org/10.1029/2025gl119921 has_accepted_license: '1' intvolume: ' 53' issue: '8' language: - iso: eng month: '04' 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' publication: Geophysical Research Letters publication_identifier: eissn: - 1944-8007 issn: - 0094-8276 publication_status: published publisher: Wiley quality_controlled: '1' scopus_import: '1' status: public title: 'Spatial patterns of shallow clouds: Challenging the concept of defined regimes' 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: 53 year: '2026' ... --- DOAJ_listed: '1' OA_place: publisher OA_type: gold PlanS_conform: '1' _id: '21760' abstract: - lang: eng text: 3I/ATLAS is the third interstellar object discovered to date, following 1I/‘Oumuamua and 2I/Borisov. Its unusually high excess velocity and active cometary nature make it a key probe of the Galactic population of icy planetesimals. Understanding its origin requires its past trajectory through the Galaxy to be traced and the possible role of stellar encounters to be assessed, both as a potential origin and a perturber to its orbit. We integrated the orbit of 3I/ATLAS backward in time for 10 Myr, together with a sample of Gaia DR3 stars with high-quality astrometry and radial velocities, to identify close passages within 2 pc. We identify 93 nominal encounters, 62 of which are significant at the 2σ level. However, none of these encounters produced any meaningful perturbation. The strongest perturber Gaia DR3 6863591389529611264 at 0.30 pc and with a relative velocity of 35 km s−1, imparted only a velocity change of ∣Δv∣ ≃ 5 × 10−4 km s−1 to the orbit of 3I/ATLAS. Our results indicate that no stellar flybys within the past 10 Myr and 500 pc contained in Gaia DR3 can account for the present trajectory of 3I/ATLAS or be associated with its origin. We further show that 3I/ATLAS is kinematically consistent with a thin-disk population, despite its large peculiar velocity. acknowledgement: We thank the anonymous referee for a careful reading of the manuscript and for constructive comments that improved the paper. X.P.C. and S.T. thank J.L. Gragera-Más and Ylva Götberg for their valuable feedback and comments. X.P.C. acknowledges financial support from the Spanish National Programme for the Promotion of Talent and its Employability grant PRE2022-104959 cofunded by the European Social Fund. S.T. acknowledges the funding from the European Union’s Horizon 2020 research and innovation program under the Marie Skłodowska-Curie grant agreement No. 101034413. E.V. acknowledges support from the DISCOBOLO project funded by the Spanish Ministerio de Ciencia, Innovación y Universidades under grant PID2021-127289NB-I00. A.J.M. acknowledges support from the Swedish National Space Agency (Career grant 2023-00146). X.P.C. and M.M. acknowledge support from the Spanish Ministerio de Ciencia, Innovaciòn y Universidades under grants PID2021122842OB-C22 and PID2024-157964OB-C22; from the Xunta de Galicia and the European Union (FEDER Galicia 2021-2027 Program) Ref. ED431B 2024/21, ED431B 2024/02, and CITIC ED431G 2023/01. This work has made use of data from the European Space Agency (ESA) Gaia mission and processed by the Gaia Data Processing and Analysis Consortium (DPAC). Funding for the DPAC has been provided by national institutions, particularly the institutions participating in the Gaia Multilateral Agreement. article_number: '146' article_processing_charge: Yes article_type: original arxiv: 1 author: - first_name: X. full_name: Pérez-Couto, X. last_name: Pérez-Couto - first_name: Santiago full_name: Torres Rodriguez, Santiago id: a8df4360-4328-11ee-8f1a-e502d0c83fc2 last_name: Torres Rodriguez orcid: 0000-0002-3150-8988 - first_name: E. full_name: Villaver, E. last_name: Villaver - first_name: A. J. full_name: Mustill, A. J. last_name: Mustill - first_name: M. full_name: Manteiga, M. last_name: Manteiga citation: ama: 'Pérez-Couto X, Torres Rodriguez S, Villaver E, Mustill AJ, Manteiga M. 3I/ATLAS: In search of the witnesses to its voyage. The Astrophysical Journal. 2026;1001(2). doi:10.3847/1538-4357/ae56ff' apa: 'Pérez-Couto, X., Torres Rodriguez, S., Villaver, E., Mustill, A. J., & Manteiga, M. (2026). 3I/ATLAS: In search of the witnesses to its voyage. The Astrophysical Journal. IOP Publishing. https://doi.org/10.3847/1538-4357/ae56ff' chicago: 'Pérez-Couto, X., Santiago Torres Rodriguez, E. Villaver, A. J. Mustill, and M. Manteiga. “3I/ATLAS: In Search of the Witnesses to Its Voyage.” The Astrophysical Journal. IOP Publishing, 2026. https://doi.org/10.3847/1538-4357/ae56ff.' ieee: 'X. Pérez-Couto, S. Torres Rodriguez, E. Villaver, A. J. Mustill, and M. Manteiga, “3I/ATLAS: In search of the witnesses to its voyage,” The Astrophysical Journal, vol. 1001, no. 2. IOP Publishing, 2026.' ista: 'Pérez-Couto X, Torres Rodriguez S, Villaver E, Mustill AJ, Manteiga M. 2026. 3I/ATLAS: In search of the witnesses to its voyage. The Astrophysical Journal. 1001(2), 146.' mla: 'Pérez-Couto, X., et al. “3I/ATLAS: In Search of the Witnesses to Its Voyage.” The Astrophysical Journal, vol. 1001, no. 2, 146, IOP Publishing, 2026, doi:10.3847/1538-4357/ae56ff.' short: X. Pérez-Couto, S. Torres Rodriguez, E. Villaver, A.J. Mustill, M. Manteiga, The Astrophysical Journal 1001 (2026). date_created: 2026-04-26T22:01:46Z date_published: 2026-04-20T00:00:00Z date_updated: 2026-04-28T13:08:39Z day: '20' ddc: - '520' department: - _id: LiBu doi: 10.3847/1538-4357/ae56ff ec_funded: 1 external_id: arxiv: - '2509.07678' file: - access_level: open_access checksum: c3daf49261a9933c079854c38eec316f content_type: application/pdf creator: dernst date_created: 2026-04-28T13:06:00Z date_updated: 2026-04-28T13:06:00Z file_id: '21773' file_name: 2026_AstrophysicalJournal_PerezCouto.pdf file_size: 2905627 relation: main_file success: 1 file_date_updated: 2026-04-28T13:06:00Z fulldoi: https://doi.org/10.3847/1538-4357/ae56ff has_accepted_license: '1' intvolume: ' 1001' issue: '2' language: - iso: eng month: '04' 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' publication: The Astrophysical Journal publication_identifier: eissn: - 1538-4357 issn: - 0004-637X publication_status: published publisher: IOP Publishing quality_controlled: '1' scopus_import: '1' status: public title: '3I/ATLAS: In search of the witnesses to its voyage' 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: 1001 year: '2026' ... --- OA_place: publisher OA_type: hybrid PlanS_conform: '1' _id: '21764' abstract: - lang: eng text: "Colloidal fluids can exhibit complex phase behavior and determining phase diagrams via experiments or computer simulations can be laborious. We demonstrate that the dispersion relation ω(k), obtained from dynamical density functional theory for the uniform density system, is a highly versatile tool for predicting where in the phase diagram complex crystals form. The sign of ω(k) determines whether density modes with wave number k grow or decay over time. We demonstrate the predictive power by investigating the complex phase behavior of particles interacting via core-shoulder pair potentials. With complementary Monte Carlo simulations, we show that regions of the phase diagram where ωðkÞ has one or several unstable (growing) wave numbers are also where crystalline phases occur. Going further, by tuning these\r\nunstable wave numbers via the interaction-potential and state-point parameters, we design systems with quasicrystals in the phase diagram. We identify a system with a certain shoulder range exhibiting at least ten different phases. Our general approach accelerates considerably the mapping of complex phase diagrams, crucial for the design of new materials." acknowledgement: "The authors thank Ms. Katrin Muck for her guidance related to the use of HPC. The MC\r\ncomputer simulation results presented here were enabled via a generous share of CPU time, offered by the Vienna Scientific Cluster (VSC) under Project No. 71263. A. J. A. gratefully acknowledges support from the EPSRC under Grant No. EP/P015689/1. This research was funded in part by the Austrian Science Fund (FWF) [Grant DOI: 10.55776/PIN8759524], gratefully acknowledged by G. K ." article_number: '148203' article_processing_charge: Yes (in subscription journal) article_type: original arxiv: 1 author: - first_name: Michael full_name: Wassermair, Michael id: 23d132c4-4e98-11ef-b275-9e8d4cd8c917 last_name: Wassermair orcid: 0009-0003-6339-4051 - first_name: Gerhard full_name: Kahl, Gerhard last_name: Kahl - first_name: Roland full_name: Roth, Roland last_name: Roth - first_name: Andrew J. full_name: Archer, Andrew J. last_name: Archer citation: ama: Wassermair M, Kahl G, Roth R, Archer AJ. Navigating complex phase diagrams in soft matter systems. Physical Review Letters. 2026;136(14). doi:10.1103/nbvt-fgjy apa: Wassermair, M., Kahl, G., Roth, R., & Archer, A. J. (2026). Navigating complex phase diagrams in soft matter systems. Physical Review Letters. American Physical Society. https://doi.org/10.1103/nbvt-fgjy chicago: Wassermair, Michael, Gerhard Kahl, Roland Roth, and Andrew J. Archer. “Navigating Complex Phase Diagrams in Soft Matter Systems.” Physical Review Letters. American Physical Society, 2026. https://doi.org/10.1103/nbvt-fgjy. ieee: M. Wassermair, G. Kahl, R. Roth, and A. J. Archer, “Navigating complex phase diagrams in soft matter systems,” Physical Review Letters, vol. 136, no. 14. American Physical Society, 2026. ista: Wassermair M, Kahl G, Roth R, Archer AJ. 2026. Navigating complex phase diagrams in soft matter systems. Physical Review Letters. 136(14), 148203. mla: Wassermair, Michael, et al. “Navigating Complex Phase Diagrams in Soft Matter Systems.” Physical Review Letters, vol. 136, no. 14, 148203, American Physical Society, 2026, doi:10.1103/nbvt-fgjy. short: M. Wassermair, G. Kahl, R. Roth, A.J. Archer, Physical Review Letters 136 (2026). date_created: 2026-04-26T22:01:47Z date_published: 2026-04-10T00:00:00Z date_updated: 2026-04-28T07:03:48Z day: '10' ddc: - '530' department: - _id: AnSa - _id: GradSch doi: 10.1103/nbvt-fgjy external_id: arxiv: - '2603.18918' file: - access_level: open_access checksum: 8ffb139122a185fcddbe6a9c901a287c content_type: application/pdf creator: dernst date_created: 2026-04-28T06:58:40Z date_updated: 2026-04-28T06:58:40Z file_id: '21769' file_name: 2026_PhysicalReviewLetters_Wassermair.pdf file_size: 4336488 relation: main_file success: 1 file_date_updated: 2026-04-28T06:58:40Z fulldoi: https://doi.org/10.1103/nbvt-fgjy has_accepted_license: '1' intvolume: ' 136' issue: '14' language: - iso: eng month: '04' oa: 1 oa_version: Published Version publication: Physical Review Letters publication_identifier: eissn: - 1079-7114 issn: - 0031-9007 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: Navigating complex phase diagrams in soft matter systems 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: 136 year: '2026' ... --- OA_type: closed access _id: '21765' abstract: - lang: eng text: "Dielectric particles of the same material exchange electrical charge during collisions or sliding contacts, yet the underlying charge-exchange mechanism is still not understood. The fact that particles can become highly charged as a result of this effect has significant consequences for many settings, both in nature and industry, such as thunderstorms, volcanic eruptions, particle aggregation during meteorite and planet formation, and the clogging of industrial granular systems. Toward understanding these systems, great efforts have been made to develop precise in situ measurements for particle charge, e.g., to determine ensemble charge distributions or measure exchange during individual contacts. Here, we present experimental results concerning the particle size scaling of the stationary-state charge distributions of oxide particles in the sub-millimeter range. We measure the charge distributions for large ensembles of monodisperse ZrO2:SiO2 composite spheres, ranging from 172 to 545µ⁢m in diameter. These distributions are non-Gaussian and collapse to a single master curve when plotted as functions of the surface charge density Σ=\U0001D45E/4⁢\U0001D70B⁢\U0001D4452. X-ray fluorescence and atomic force microscopy measurements show that the differences in the measured charge distributions are not due to variations in chemical composition or surface roughness, but rather to size alone. Our findings provide constraints on microscopic models for charge exchange, namely that they should lead to steady-state distributions that are non-Gaussian and scale in a specific way with particle size." acknowledgement: This research was supported by ANID Grants QUIMAL No. 160001, FONDECYT No. 1221597, and FONDEQUIP No. EQM190177. The authors thank Rodrigo Espinoza for the EDS-SEM measurements and Domingo Jullian for fruitful discussions. We also acknowledge the technical assistance of Ricardo Silva and Andrés Espinosa at DFI, FCFM, Universidad de Chile. article_number: '045604' article_processing_charge: No article_type: original author: - first_name: Macarena full_name: Lara, Macarena last_name: Lara - first_name: Marcos full_name: Flores, Marcos last_name: Flores - first_name: Gustavo full_name: Castillo, Gustavo last_name: Castillo - first_name: Santiago full_name: Tassara, Santiago last_name: Tassara - first_name: Scott R full_name: Waitukaitis, Scott R id: 3A1FFC16-F248-11E8-B48F-1D18A9856A87 last_name: Waitukaitis orcid: 0000-0002-2299-3176 - first_name: Nicolás full_name: Mujica, Nicolás last_name: Mujica citation: ama: Lara M, Flores M, Castillo G, Tassara S, Waitukaitis SR, Mujica N. Particle size scaling of non-Gaussian granular charge distributions. Physical Review Materials. 2026;10(4). doi:10.1103/qw6t-xqdw apa: Lara, M., Flores, M., Castillo, G., Tassara, S., Waitukaitis, S. R., & Mujica, N. (2026). Particle size scaling of non-Gaussian granular charge distributions. Physical Review Materials. American Physical Society. https://doi.org/10.1103/qw6t-xqdw chicago: Lara, Macarena, Marcos Flores, Gustavo Castillo, Santiago Tassara, Scott R Waitukaitis, and Nicolás Mujica. “Particle Size Scaling of Non-Gaussian Granular Charge Distributions.” Physical Review Materials. American Physical Society, 2026. https://doi.org/10.1103/qw6t-xqdw. ieee: M. Lara, M. Flores, G. Castillo, S. Tassara, S. R. Waitukaitis, and N. Mujica, “Particle size scaling of non-Gaussian granular charge distributions,” Physical Review Materials, vol. 10, no. 4. American Physical Society, 2026. ista: Lara M, Flores M, Castillo G, Tassara S, Waitukaitis SR, Mujica N. 2026. Particle size scaling of non-Gaussian granular charge distributions. Physical Review Materials. 10(4), 045604. mla: Lara, Macarena, et al. “Particle Size Scaling of Non-Gaussian Granular Charge Distributions.” Physical Review Materials, vol. 10, no. 4, 045604, American Physical Society, 2026, doi:10.1103/qw6t-xqdw. short: M. Lara, M. Flores, G. Castillo, S. Tassara, S.R. Waitukaitis, N. Mujica, Physical Review Materials 10 (2026). date_created: 2026-04-26T22:01:47Z date_published: 2026-04-01T00:00:00Z date_updated: 2026-04-28T07:13:56Z day: '01' department: - _id: ScWa doi: 10.1103/qw6t-xqdw fulldoi: https://doi.org/10.1103/qw6t-xqdw intvolume: ' 10' issue: '4' language: - iso: eng month: '04' oa_version: None publication: Physical Review Materials publication_identifier: eissn: - 2475-9953 publication_status: published publisher: American Physical Society quality_controlled: '1' scopus_import: '1' status: public title: Particle size scaling of non-Gaussian granular charge distributions type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 10 year: '2026' ... --- OA_place: publisher OA_type: hybrid _id: '21766' abstract: - lang: eng text: We provide a new characterisation of the decades old open problem of extending bilipschitz mappings given on a Euclidean separated net. In particular, this allows for the complete positive solution of the open problem in dimension two. Along the way, we develop a set of tools for bilipschitz extensions of mappings between subsets of Euclidean spaces. acknowledgement: "The present work developed from a research visit of M.D. to V.K. at IST Austria, funded by\r\na London Mathematical Society Research in Pairs grant. This work was done while V.K. was fully funded by the Austria Science Fund (FWF) [M 3100-N]." article_processing_charge: Yes (in subscription journal) article_type: original arxiv: 1 author: - first_name: Michael full_name: Dymond, Michael last_name: Dymond - first_name: Vojtech full_name: Kaluza, Vojtech id: 21AE5134-9EAC-11EA-BEA2-D7BD3DDC885E last_name: Kaluza orcid: 0000-0002-2512-8698 citation: ama: Dymond M, Kaluza V. Extending bilipschitz mappings between separated nets. Annales Fennici Mathematici. 2026;51(1):237-260. doi:10.54330/afm.181562 apa: Dymond, M., & Kaluza, V. (2026). Extending bilipschitz mappings between separated nets. Annales Fennici Mathematici. Finnish Mathematical Society. https://doi.org/10.54330/afm.181562 chicago: Dymond, Michael, and Vojtech Kaluza. “Extending Bilipschitz Mappings between Separated Nets.” Annales Fennici Mathematici. Finnish Mathematical Society, 2026. https://doi.org/10.54330/afm.181562. ieee: M. Dymond and V. Kaluza, “Extending bilipschitz mappings between separated nets,” Annales Fennici Mathematici, vol. 51, no. 1. Finnish Mathematical Society, pp. 237–260, 2026. ista: Dymond M, Kaluza V. 2026. Extending bilipschitz mappings between separated nets. Annales Fennici Mathematici. 51(1), 237–260. mla: Dymond, Michael, and Vojtech Kaluza. “Extending Bilipschitz Mappings between Separated Nets.” Annales Fennici Mathematici, vol. 51, no. 1, Finnish Mathematical Society, 2026, pp. 237–60, doi:10.54330/afm.181562. short: M. Dymond, V. Kaluza, Annales Fennici Mathematici 51 (2026) 237–260. corr_author: '1' date_created: 2026-04-26T22:01:47Z date_published: 2026-04-17T00:00:00Z date_updated: 2026-04-28T12:06:00Z day: '17' ddc: - '510' department: - _id: UlWa doi: 10.54330/afm.181562 external_id: arxiv: - '2507.22007' file: - access_level: open_access checksum: 442023926a3803d5d6ca8db8dbc4af1c content_type: application/pdf creator: dernst date_created: 2026-04-28T12:03:13Z date_updated: 2026-04-28T12:03:13Z file_id: '21772' file_name: 2026_AnnalesFenniciMath_Dymond.pdf file_size: 342082 relation: main_file success: 1 file_date_updated: 2026-04-28T12:03:13Z fulldoi: https://doi.org/10.54330/afm.181562 has_accepted_license: '1' intvolume: ' 51' issue: '1' keyword: - Lipschitz - bilipschitz - extension - separated net. language: - iso: eng month: '04' oa: 1 oa_version: Published Version page: 237-260 project: - _id: fc35eaa2-9c52-11eb-aca3-88501ab155e9 grant_number: M03100 name: Spectra and topology of graphs and of simplicial complexes publication: Annales Fennici Mathematici publication_identifier: eissn: - 2737-114X issn: - 2737-0690 publication_status: published publisher: Finnish Mathematical Society quality_controlled: '1' scopus_import: '1' status: public title: Extending bilipschitz mappings between separated nets 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: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 51 year: '2026' ... --- OA_place: publisher OA_type: hybrid _id: '21767' abstract: - lang: eng text: 'The involvement of non-scientific staff in discussions about animal welfare and scientific quality is essential for biomedical research progress. In this study, we developed a survey to collect the self-perception of animal care staff (ACS) and laboratory technicians about their involvement in scientific planning and conduct. Participants were contacted to complete an anonymous online questionnaire. We obtained 850 responses, mainly from Europe: 564 from ACS and 286 from laboratory technicians. Job satisfaction was assessed as positive by ACS and laboratory technicians despite the low frequency of culture of care activities and mental health meetings. Both groups expressed their desire to be trained in research planning and conduct; however, regular training was not reported. In addition, the inability to act on animal welfare concerns owing to experimental reasons was reported by both groups. Over half of the participants felt valued and appreciated by the lead scientists or animal facility manager; however, it is not clear how they are acknowledged, as their names on the authors list or in the manuscript acknowledgments are barely included. Our results indicated that involvement of ACS and laboratory technicians in planning and conducting studies would improve their understanding of how experiments are done, and therefore communication processes, work satisfaction, animal welfare, and scientific quality. Finally, we provided recommendations to improve the engagement of ACS and laboratory technicians in discussions about animal research planning and conduct.' - lang: fre text: 'La participation de personnel non-scientifique aux discussions sur le bien-être animal et la qualité scientifique est essentielle aux progrès la recherche biomédicale. Dans cette étude, nous avons développé une enquête pour recueillir l''auto-perception du personnel chargé des soins prodigués aux animaux (PCSA) et des techniciens de laboratoire (TL) sur leur implication dans la planification et la conduite scientifiques. Les participants ont été contactés pour remplir un questionnaire anonyme en ligne. Nous avons obtenu 850 réponses, principalement en Europe : 564 provenant de PCSA et 286 de TL. La satisfaction au travail a été évaluée comme positive par le PCSA et les TL malgré la faible fréquence d’activités sur la culture des soins et de réunions concernant la santé mentale. Bien que les deux groupes aient exprimé leur désir d''être formés à la planification et à la conduite de la recherche, aucune formation réelle régulière n''a été signalée. De plus, l''incapacité d''agir sur les préoccupations relatives au bien-être animal pour des raisons expérimentales a été signalée par les deux groupes. Plus de la moitié des participants se sont sentis valorisés et appréciés par les scientifiques principaux ou le gestionnaire de l’installation animale mais on ne sait pas clairement comment ils sont reconnus, car leurs noms sur la liste des auteurs ou dans les remerciements sont à peine inclus dans la documentation. Nos résultats ont indiqué que la participation du PCSA et des TL à la planification et à la conduite des études améliorerait leur compréhension de la façon dont les expériences sont effectuées et, par conséquent, les processus de communication, leur satisfaction au travail ainsi que le bien-être animal et la qualité scientifique. Enfin, nous avons formulé des recommandations pour améliorer la participation du PCSA et des TL aux discussions sur la planification et la conduite de la recherche animale.' - lang: ger text: 'Die Einbeziehung von nichtwissenschaftlichem Personal in Diskussionen über Tierschutz und wissenschaftliche Qualität ist für Fortschritte in biomedizinischer Forschung von entscheidender Bedeutung. In dieser Studie haben wir eine Umfrage entwickelt, um die Selbsteinschätzung von Tierpflegern (ACS) und Labortechnikern (LT) hinsichtlich ihrer Beteiligung an der wissenschaftlichen Planung und Durchführung zu erfassen. Die Teilnehmer wurden gebeten, einen anonymen Online-Fragebogen auszufüllen. Wir erhielten 850 Rückmeldungen, hauptsächlich aus Europa: 564 von ACS und 286 von LT. Die Arbeitszufriedenheit wurde von ACS und LT trotz der geringen Häufigkeit von Pflegeaktivitäten und Treffen zum Thema psychische Gesundheit als positiv bewertet. Beide Gruppen äußerten den Wunsch, in der Forschungsplanung und -durchführung geschult zu werden, doch regelmäßig stattfindende Schulungen wurden nicht berichtet. Außerdem wurde von beiden Gruppen vermeldet, dass sie aus versuchstechnischen Gründen nicht in der Lage waren, auf Tierschutzbedenken zu reagieren. Über die Hälfte der Teilnehmer fühlte sich von den leitenden Wissenschaftlern oder dem Leiter der Tierhaltungseinrichtung geschätzt und anerkannt; es ist jedoch unklar, inwiefern sie wirklich gewürdigt werden, da ihre Namen kaum in der Autorenliste oder in den Danksagungen des Manuskripts aufgeführt sind. Unsere Ergebnisse deuteten darauf hin, dass die Einbeziehung von ACS und LT in die Planung und Durchführung von Studien ihr Verständnis für die Durchführung von Experimenten verbessern würde – und damit auch Kommunikationsprozesse, Arbeitszufriedenheit, Tierwohl und wissenschaftliche Qualität. Abschließend gaben wir Empfehlungen zur Verbesserung der Einbeziehung von ACS und LT in Diskussionen über die Planung und Durchführung von Tierversuchen.' - lang: spa text: 'La participación del personal no científico en los debates sobre el bienestar animal y la calidad científica es fundamental para el avance de la investigación biomédica. En este estudio, desarrollamos una encuesta para recoger la autopercepción del personal encargado del cuidado de los animales (ACS) y de los técnicos de laboratorio (LT) sobre su implicación en la planificación y la realización científicas. Se contactó con los participantes para que cumplimentaran un cuestionario anónimo en línea. Obtuvimos 850 respuestas, principalmente de Europa: 564 de ACS y 286 de LT. La satisfacción laboral fue evaluada como positiva por ACS y técnicos de laboratorio a pesar de la baja frecuencia de actividades de cultura del cuidado y reuniones sobre bienestar mental. Ambos grupos expresaron su deseo de recibir formación en planificación y realización de investigaciones, sin embargo, no se informó sobre una formación regular. Asimismo, ambos grupos señalaron la incapacidad de actuar ante las preocupaciones sobre el bienestar animal por motivos experimentales. Más de la mitad de los participantes se sintieron valorados y apreciados por los científicos principales o el responsable de las instalaciones de animales; sin embargo, no está claro cómo se les reconoce, ya que apenas se incluyen sus nombres en la lista de autores o en los agradecimientos del manuscrito. Nuestros resultados indicaron que la participación de los ACS y los LT en la planificación y realización de los estudios mejoraría su comprensión de cómo se hacen los experimentos y, por tanto, los procesos de comunicación, la satisfacción laboral, el bienestar animal y la calidad científica. Finalmente, proporcionamos recomendaciones para mejorar el compromiso de la AEC y la LT en los debates sobre la planificación y la realización de investigaciones con animales.' acknowledgement: "We deeply acknowledge all the animal care staff and laboratory technicians who participated in this study! We acknowledge Working Groups 1 and 4 from COST Action IMPROVE (“3Rs concepts to improve the quality of biomedical science”), CA21139, supported by COST (European Cooperation in Science and Technology) for their feedback and support. We also acknowledge Aoife Milford for her comments and contributions to the final draft of the manuscript.\r\nThis publication was based on work from the COST Action IMPROVE (“3Rs concepts to improve the quality of biomedical science”), CA21139, supported by COST (European Cooperation in Science and Technology)." article_processing_charge: Yes (in subscription journal) article_type: original author: - first_name: Fernando full_name: Gonzalez-Uarquin, Fernando last_name: Gonzalez-Uarquin - first_name: Paulin full_name: Jirkof, Paulin last_name: Jirkof - first_name: Bettina full_name: Bert, Bettina last_name: Bert - first_name: Penny full_name: Hawkins, Penny last_name: Hawkins - first_name: Ljupco full_name: Angelovski, Ljupco last_name: Angelovski - first_name: Jan full_name: Baumgart, Jan last_name: Baumgart - first_name: Nadine full_name: Baumgart, Nadine last_name: Baumgart - first_name: Özge S. full_name: Cevik, Özge S. last_name: Cevik - first_name: Nuno H. full_name: Franco, Nuno H. last_name: Franco - first_name: Erdal full_name: Horata, Erdal last_name: Horata - first_name: Rohish full_name: Kaura, Rohish last_name: Kaura - first_name: Winfried full_name: Neuhaus, Winfried last_name: Neuhaus - first_name: Brigida full_name: Riso, Brigida last_name: Riso - first_name: Adrian J. full_name: Smith, Adrian J. last_name: Smith - first_name: Athanassia full_name: Sotiropoulos, Athanassia last_name: Sotiropoulos - first_name: Augusto full_name: Vitale, Augusto last_name: Vitale - first_name: Sophie full_name: Schober, Sophie id: 80b0a0ef-4b9f-11ec-b119-8d9d94c4a1d8 last_name: Schober citation: ama: 'Gonzalez-Uarquin F, Jirkof P, Bert B, et al. Building bridges: Involvement of animal care staff and laboratory technicians in experimental planning and conduct of animal studies for better job satisfaction and science. Laboratory Animals. 2026. doi:10.1177/00236772251400976' apa: 'Gonzalez-Uarquin, F., Jirkof, P., Bert, B., Hawkins, P., Angelovski, L., Baumgart, J., … Schober, S. (2026). Building bridges: Involvement of animal care staff and laboratory technicians in experimental planning and conduct of animal studies for better job satisfaction and science. Laboratory Animals. SAGE Publications. https://doi.org/10.1177/00236772251400976' chicago: 'Gonzalez-Uarquin, Fernando, Paulin Jirkof, Bettina Bert, Penny Hawkins, Ljupco Angelovski, Jan Baumgart, Nadine Baumgart, et al. “Building Bridges: Involvement of Animal Care Staff and Laboratory Technicians in Experimental Planning and Conduct of Animal Studies for Better Job Satisfaction and Science.” Laboratory Animals. SAGE Publications, 2026. https://doi.org/10.1177/00236772251400976.' ieee: 'F. Gonzalez-Uarquin et al., “Building bridges: Involvement of animal care staff and laboratory technicians in experimental planning and conduct of animal studies for better job satisfaction and science,” Laboratory Animals. SAGE Publications, 2026.' ista: 'Gonzalez-Uarquin F, Jirkof P, Bert B, Hawkins P, Angelovski L, Baumgart J, Baumgart N, Cevik ÖS, Franco NH, Horata E, Kaura R, Neuhaus W, Riso B, Smith AJ, Sotiropoulos A, Vitale A, Schober S. 2026. Building bridges: Involvement of animal care staff and laboratory technicians in experimental planning and conduct of animal studies for better job satisfaction and science. Laboratory Animals.' mla: 'Gonzalez-Uarquin, Fernando, et al. “Building Bridges: Involvement of Animal Care Staff and Laboratory Technicians in Experimental Planning and Conduct of Animal Studies for Better Job Satisfaction and Science.” Laboratory Animals, SAGE Publications, 2026, doi:10.1177/00236772251400976.' short: F. Gonzalez-Uarquin, P. Jirkof, B. Bert, P. Hawkins, L. Angelovski, J. Baumgart, N. Baumgart, Ö.S. Cevik, N.H. Franco, E. Horata, R. Kaura, W. Neuhaus, B. Riso, A.J. Smith, A. Sotiropoulos, A. Vitale, S. Schober, Laboratory Animals (2026). date_created: 2026-04-26T22:01:47Z date_published: 2026-04-14T00:00:00Z date_updated: 2026-06-18T08:33:36Z day: '14' ddc: - '570' department: - _id: PreCl doi: 10.1177/00236772251400976 fulldoi: https://doi.org/10.1177/00236772251400976 language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1177/00236772251400976 month: '04' oa: 1 oa_version: Published Version publication: Laboratory Animals publication_identifier: eissn: - 1758-1117 issn: - 0023-6772 publication_status: epub_ahead publisher: SAGE Publications quality_controlled: '1' scopus_import: '1' status: public title: 'Building bridges: Involvement of animal care staff and laboratory technicians in experimental planning and conduct of animal studies for better job satisfaction and science' type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2026' ... --- OA_place: publisher OA_type: hybrid PlanS_conform: '1' _id: '21776' abstract: - lang: eng text: Pyridyl motifs equipped with N-substituents can be powerful ligands for catalysis, yet their broader adoption is limited by the lack of a practical method to prepare these scaffolds. We report a modular, robust, and versatile Buchwald–Hartwig amination protocol that enables the rapid synthesis of bipyridine, phenanthroline, terpyridine, and pybox ligands bearing dialkylamine, diarylamine, and heteroaromatic N-substituents. These conditions streamline ligand library synthesis and will facilitate systematic studies in catalysis and related applications. acknowledged_ssus: - _id: LifeSc - _id: MassSpec - _id: NMR - _id: M-Shop acknowledgement: We gratefully acknowledge ISTA for generous financial support. B.P. acknowledges the Austrian Science Fund (PAT 1250924) and the ACS GCI Pharmaceutical Roundtable for funding; T.P.Y acknowledges the NSF(CHE-2349003) for financial support. This research was supported by the Scientific Service Units (SSU) of ISTA through resources provided by the Lab Support Facility, Mass Spec Facility, NMR facility, and the Miba Machine Shop. We specifically thank Aikaterina Paraskevopoulou for HRMS measurements and Jan Pecak for support with ICP-OES experi-ments. NMR facilities at UW−Madison were supported by the NSF(CHE-1048642) and a generous gift from Paul J. and Margaret M. Bender. Open Access funding provided by Institute of Science and Technology Austria/KEMÖ. This study was supported by Austrian Science Fund (PAT 1250924), ACSGCI Pharmaceutical Roundtable, and National Science Foundation(CHE-2349003) and (CHE-1048642). article_number: e70417 article_processing_charge: Yes (via OA deal) article_type: original author: - first_name: Adam full_name: Petrik, Adam id: e273d403-329f-11ee-a353-8c34c056f8ed last_name: Petrik - first_name: Aleksander full_name: Bena, Aleksander id: 4197c39e-e8ec-11ed-86cb-afed934cd664 last_name: Bena - first_name: Haralds full_name: Baunis, Haralds id: 2eea55ec-e8ec-11ed-86cb-d9c76787acfe last_name: Baunis - first_name: Riley M. full_name: Kelch, Riley M. last_name: Kelch - first_name: Tehshik P. full_name: Yoon, Tehshik P. last_name: Yoon - first_name: Bartholomäus full_name: Pieber, Bartholomäus id: 93e5e5b2-0da6-11ed-8a41-af589a024726 last_name: Pieber orcid: 0000-0001-8689-388X citation: ama: Petrik A, Bena A, Baunis H, Kelch RM, Yoon TP, Pieber B. Facile access to N-substituted pyridyl ligands. Advanced Synthesis & Catalysis. 2026;368(9). doi:10.1002/adsc.70417 apa: Petrik, A., Bena, A., Baunis, H., Kelch, R. M., Yoon, T. P., & Pieber, B. (2026). Facile access to N-substituted pyridyl ligands. Advanced Synthesis & Catalysis. Wiley. https://doi.org/10.1002/adsc.70417 chicago: Petrik, Adam, Aleksander Bena, Haralds Baunis, Riley M. Kelch, Tehshik P. Yoon, and Bartholomäus Pieber. “Facile Access to N-Substituted Pyridyl Ligands.” Advanced Synthesis & Catalysis. Wiley, 2026. https://doi.org/10.1002/adsc.70417. ieee: A. Petrik, A. Bena, H. Baunis, R. M. Kelch, T. P. Yoon, and B. Pieber, “Facile access to N-substituted pyridyl ligands,” Advanced Synthesis & Catalysis, vol. 368, no. 9. Wiley, 2026. ista: Petrik A, Bena A, Baunis H, Kelch RM, Yoon TP, Pieber B. 2026. Facile access to N-substituted pyridyl ligands. Advanced Synthesis & Catalysis. 368(9), e70417. mla: Petrik, Adam, et al. “Facile Access to N-Substituted Pyridyl Ligands.” Advanced Synthesis & Catalysis, vol. 368, no. 9, e70417, Wiley, 2026, doi:10.1002/adsc.70417. short: A. Petrik, A. Bena, H. Baunis, R.M. Kelch, T.P. Yoon, B. Pieber, Advanced Synthesis & Catalysis 368 (2026). corr_author: '1' date_created: 2026-05-03T22:01:36Z date_published: 2026-05-05T00:00:00Z date_updated: 2026-05-07T07:33:33Z day: '05' ddc: - '540' department: - _id: BaPi - _id: GradSch doi: 10.1002/adsc.70417 file: - access_level: open_access checksum: afe9752977898642c903abdc70b4a283 content_type: application/pdf creator: dernst date_created: 2026-05-07T07:29:24Z date_updated: 2026-05-07T07:29:24Z file_id: '21833' file_name: 2026_AdvSynthCatal_Petrik.pdf file_size: 437184 relation: main_file success: 1 file_date_updated: 2026-05-07T07:29:24Z fulldoi: https://doi.org/10.1002/adsc.70417 has_accepted_license: '1' intvolume: ' 368' issue: '9' language: - iso: eng month: '05' oa: 1 oa_version: Published Version project: - _id: 8f1d607d-16d5-11f0-9cad-ab453295ba5e grant_number: PAT 1250924 name: Photoactive ligands for transformative nickel catalysis publication: Advanced Synthesis & Catalysis publication_identifier: eissn: - 1615-4169 issn: - 1615-4150 publication_status: published publisher: Wiley quality_controlled: '1' scopus_import: '1' status: public title: Facile access to N-substituted pyridyl ligands 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: 368 year: '2026' ... --- OA_place: publisher OA_type: hybrid _id: '21778' abstract: - lang: eng text: "We prove that every \U0001D43F-bilipschitz mapping ℤ 2 → ℝ2 canbe extended to a \U0001D436(\U0001D43F)-bilipschitz mapping ℝ2 → ℝ2,and we provide a polynomial upper bound for \U0001D436(\U0001D43F).Moreover, we extend the result to every separated netin ℝ2 instead of ℤ 2, with the upper bound gaininga polynomial dependence on the separation and netconstants associated to the given separated net. Thisanswers an Oberwolfach question of Navas from 2015and is also a positive solution of the two-dimensionalform of a decades old open (in all dimensions at leasttwo) problem due to Alestalo Trotsenko and Väisälä." acknowledgement: The authors wish to thank Professor Leonid Kovalev for a valuable observation on the first versionof this work, which led to improved estimates and cleaner proofs in Section 6. The present workdeveloped from a research visit of Michael Dymond to Vojtěch Kaluža at IST Austria, funded by aLondon Mathematical Society Research in Pairs grant. This work was done whilst Vojtěch Kalužawas fully funded by the Austria Science Fund (FWF) [M 3100-N]. article_number: e70540 article_processing_charge: Yes (in subscription journal) article_type: original arxiv: 1 author: - first_name: Michael full_name: Dymond, Michael last_name: Dymond - first_name: Vojtech full_name: Kaluza, Vojtech id: 21AE5134-9EAC-11EA-BEA2-D7BD3DDC885E last_name: Kaluza orcid: 0000-0002-2512-8698 citation: ama: Dymond M, Kaluza V. Planar bilipschitz extension from separated nets. Journal of the London Mathematical Society. 2026;113(4). doi:10.1112/jlms.70540 apa: Dymond, M., & Kaluza, V. (2026). Planar bilipschitz extension from separated nets. Journal of the London Mathematical Society. Wiley. https://doi.org/10.1112/jlms.70540 chicago: Dymond, Michael, and Vojtech Kaluza. “Planar Bilipschitz Extension from Separated Nets.” Journal of the London Mathematical Society. Wiley, 2026. https://doi.org/10.1112/jlms.70540. ieee: M. Dymond and V. Kaluza, “Planar bilipschitz extension from separated nets,” Journal of the London Mathematical Society, vol. 113, no. 4. Wiley, 2026. ista: Dymond M, Kaluza V. 2026. Planar bilipschitz extension from separated nets. Journal of the London Mathematical Society. 113(4), e70540. mla: Dymond, Michael, and Vojtech Kaluza. “Planar Bilipschitz Extension from Separated Nets.” Journal of the London Mathematical Society, vol. 113, no. 4, e70540, Wiley, 2026, doi:10.1112/jlms.70540. short: M. Dymond, V. Kaluza, Journal of the London Mathematical Society 113 (2026). date_created: 2026-05-03T22:01:37Z date_published: 2026-04-01T00:00:00Z date_updated: 2026-05-07T08:29:18Z day: '01' ddc: - '510' department: - _id: UlWa doi: 10.1112/jlms.70540 external_id: arxiv: - '2410.22294' file: - access_level: open_access checksum: 6dbfc7134f732d17c5c8467843a73e90 content_type: application/pdf creator: dernst date_created: 2026-05-07T08:27:43Z date_updated: 2026-05-07T08:27:43Z file_id: '21836' file_name: 2026_JourLondonMathSoc_Dymond.pdf file_size: 617569 relation: main_file success: 1 file_date_updated: 2026-05-07T08:27:43Z fulldoi: https://doi.org/10.1112/jlms.70540 has_accepted_license: '1' intvolume: ' 113' issue: '4' language: - iso: eng month: '04' oa: 1 oa_version: Published Version project: - _id: fc35eaa2-9c52-11eb-aca3-88501ab155e9 grant_number: M03100 name: Spectra and topology of graphs and of simplicial complexes publication: Journal of the London Mathematical Society publication_identifier: eissn: - 1469-7750 issn: - 0024-6107 publication_status: published publisher: Wiley quality_controlled: '1' scopus_import: '1' status: public title: Planar bilipschitz extension from separated nets 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: 113 year: '2026' ... --- DOAJ_listed: '1' OA_place: publisher OA_type: gold _id: '21779' abstract: - lang: eng text: Acidomycin is an anti-mycobacterial antibiotic with a unique mode of action, targeting the biotin biosynthesis pathway. Despite being highly active against mycobacteria in vitro, its development as an anti-tubercular agent has been hindered due to suboptimal pharmacokinetics. Engineering of the acidomycin biosynthesis may yield new analogues with improved pharmacological properties. Here, we describe the identification of the acidomycin biosynthetic gene cluster (BGC) in a Streptomyces bacterium isolated from the rhizosphere of Edelweiss. Notably, the acidomycin BGC is located in proximity to the genes for the biosynthesis of stravidins, secondary metabolites targeting a different enzyme in the biotin biosynthesis pathway, and two genes for streptavidins, proteins that strongly bind and sequester biotin. The identity of the acidomycin BGC was confirmed via both gene knock-out and heterologous expression, which suggested that the fatty acid required for the formation of acidomycin's acyl chain is most likely scavenged from the biotin biosynthesis pathway. CRISPR/Cas9-assisted knock-out of the cytochrome P450-encoding gene in the acidomycin BGC resulted in a significant decrease in its yield but did not abrogate the biosynthesis completely. acknowledgement: This work was supported by the University of Vienna. The authors thank Anna Fabisikova from the Mass Spectrometry Centre and the team of the NMR Centre (both of the Faculty of Chemistry, University of Vienna and members of the Vienna Life Science Instruments) for assistance with data acquisition. Open Access funding provided by Universitat Wien. This work was supported by Universität Wien. article_number: e70357 article_processing_charge: Yes article_type: original author: - first_name: Anna full_name: Vignolle, Anna last_name: Vignolle - first_name: Martin full_name: Zehl, Martin id: 8e016d5b-5d77-11f0-86d2-96cdb3922a55 last_name: Zehl orcid: 0000-0001-9685-0373 - first_name: Jaime Felipe Guerrero full_name: Garzón, Jaime Felipe Guerrero last_name: Garzón - first_name: Olha full_name: Schneider, Olha last_name: Schneider - first_name: Johannes full_name: Gafriller, Johannes last_name: Gafriller - first_name: Ulrike full_name: Grienke, Ulrike last_name: Grienke - first_name: Rasmus H. full_name: Kirkegaard, Rasmus H. last_name: Kirkegaard - first_name: Sergey B. full_name: Zotchev, Sergey B. last_name: Zotchev citation: ama: Vignolle A, Zehl M, Garzón JFG, et al. Identification and characterisation of the gene cluster governing biosynthesis of the anti-mycobacterial antibiotic acidomycin. Microbial Biotechnology. 2026;19(4). doi:10.1111/1751-7915.70357 apa: Vignolle, A., Zehl, M., Garzón, J. F. G., Schneider, O., Gafriller, J., Grienke, U., … Zotchev, S. B. (2026). Identification and characterisation of the gene cluster governing biosynthesis of the anti-mycobacterial antibiotic acidomycin. Microbial Biotechnology. Wiley. https://doi.org/10.1111/1751-7915.70357 chicago: Vignolle, Anna, Martin Zehl, Jaime Felipe Guerrero Garzón, Olha Schneider, Johannes Gafriller, Ulrike Grienke, Rasmus H. Kirkegaard, and Sergey B. Zotchev. “Identification and Characterisation of the Gene Cluster Governing Biosynthesis of the Anti-Mycobacterial Antibiotic Acidomycin.” Microbial Biotechnology. Wiley, 2026. https://doi.org/10.1111/1751-7915.70357. ieee: A. Vignolle et al., “Identification and characterisation of the gene cluster governing biosynthesis of the anti-mycobacterial antibiotic acidomycin,” Microbial Biotechnology, vol. 19, no. 4. Wiley, 2026. ista: Vignolle A, Zehl M, Garzón JFG, Schneider O, Gafriller J, Grienke U, Kirkegaard RH, Zotchev SB. 2026. Identification and characterisation of the gene cluster governing biosynthesis of the anti-mycobacterial antibiotic acidomycin. Microbial Biotechnology. 19(4), e70357. mla: Vignolle, Anna, et al. “Identification and Characterisation of the Gene Cluster Governing Biosynthesis of the Anti-Mycobacterial Antibiotic Acidomycin.” Microbial Biotechnology, vol. 19, no. 4, e70357, Wiley, 2026, doi:10.1111/1751-7915.70357. short: A. Vignolle, M. Zehl, J.F.G. Garzón, O. Schneider, J. Gafriller, U. Grienke, R.H. Kirkegaard, S.B. Zotchev, Microbial Biotechnology 19 (2026). date_created: 2026-05-03T22:01:37Z date_published: 2026-04-01T00:00:00Z date_updated: 2026-05-07T08:22:41Z day: '01' ddc: - '570' department: - _id: MassSpec doi: 10.1111/1751-7915.70357 external_id: pmid: - '42036976' file: - access_level: open_access checksum: 8c8aa660cef5394167e06f187adbabf0 content_type: application/pdf creator: dernst date_created: 2026-05-07T08:21:06Z date_updated: 2026-05-07T08:21:06Z file_id: '21835' file_name: 2026_MicrobialBiotechnology_Vignolle.pdf file_size: 575492 relation: main_file success: 1 file_date_updated: 2026-05-07T08:21:06Z fulldoi: https://doi.org/10.1111/1751-7915.70357 has_accepted_license: '1' intvolume: ' 19' issue: '4' language: - iso: eng month: '04' oa: 1 oa_version: Published Version pmid: 1 publication: Microbial Biotechnology publication_identifier: eissn: - 1751-7915 publication_status: published publisher: Wiley quality_controlled: '1' scopus_import: '1' status: public title: Identification and characterisation of the gene cluster governing biosynthesis of the anti-mycobacterial antibiotic acidomycin 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: 19 year: '2026' ... --- DOAJ_listed: '1' OA_place: publisher OA_type: gold _id: '21780' abstract: - lang: eng text: It is predicted that half or more of all cataclysmic variables (CVs) should have evolved past the period minimum and now exist as so-called period bouncers where a white dwarf should be accreting from a Roche lobe filling substellar companion. However, this prediction stands in stark contrast to observations, where only a few per cent of CVs are found in this evolutionary phase. A potential solution to this discrepancy is that a magnetic field emerges from within the white dwarf after the system has reached the period minimum. The transfer of angular momentum from the spin of the white dwarf into the orbit then pushes the two stars apart, detaching them for potentially billions of years. Here we present the discovery of ZTF J021804.16+071152.93, a detached 0.69 +- 0.01 M⁠, 19 MG magnetic white dwarf plus 37 +- 5MJup brown dwarf binary with an orbital period of 1.7 h. The kinematics of the system indicate that it is a high probability member of the Galactic thick disc. However, this strongly disagrees with the much younger age of the system obtained from the white dwarf parameters, implying that the system may have been accreting in the past. This system is therefore consistent with having detached as a result of the emergence of the magnetic field of the white dwarf when the system was still mass transferring, and may represent the ultimate fate for many (perhaps even most) CVs. acknowledgement: "The results presented in this paper are based on observations collected at the European Southern Observatory under programme IDs 113.D-0277 and 114.D-0066 and on observations made with the Gran Telescopio Canarias (programme ID GTC119-23B), installed in the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofísica de Canarias, on the island of La Palma.\r\n\r\nSGP acknowledges support by the Science and Technology Facilities Council (grant ST/B001174/1). ARM acknowledges support from MINECO under the PID2023-148661NB-I00 grant and by the AGAUR/Generalitat de Catalunya grant SGR-386/2021. RMO was funded by INTA through grant PRE-OBSERVATORIO and acknowledges support from project PID2023-146210NB-I00 funded by MICIU/AEI/10.13039/501100011033 and by ERDF/EU. MZ acknowledges support from FONDECYT (grants 1250525 and 1221059). VSD and HiPERCAM were funded by the Science and Technology Facilities Council (grant ST/Z000033/1). MRS thanks for support from FONDECYT (grant No. 1221059). This project received funding from the European Research Council under the European Union’s Horizon 2020 research and innovation programme (Grant agreement numbers 101002408-MOS100PC)." article_number: stag521 article_processing_charge: Yes article_type: original arxiv: 1 author: - first_name: S. G. full_name: Parsons, S. G. last_name: Parsons - first_name: A. J. full_name: Brown, A. J. last_name: Brown - first_name: S. L. full_name: Casewell, S. L. last_name: Casewell - first_name: S. P. full_name: Littlefair, S. P. last_name: Littlefair - first_name: Joannes C full_name: van Roestel, Joannes C id: 4d122fc8-6083-11f0-87a5-97d68b860333 last_name: van Roestel - first_name: A. full_name: Rebassa-Mansergas, A. last_name: Rebassa-Mansergas - first_name: R. full_name: Murillo-Ojeda, R. last_name: Murillo-Ojeda - first_name: M. full_name: Zorotovic, M. last_name: Zorotovic - first_name: M. R. full_name: Schreiber, M. R. last_name: Schreiber - first_name: S. full_name: Bagnulo, S. last_name: Bagnulo - first_name: M. A. full_name: Stroet, M. A. last_name: Stroet - first_name: N. full_name: Castro Segura, N. last_name: Castro Segura - first_name: V. S. full_name: Dhillon, V. S. last_name: Dhillon - first_name: M. J. full_name: Dyer, M. J. last_name: Dyer - first_name: J. A. full_name: Garbutt, J. A. last_name: Garbutt - first_name: M. J. full_name: Green, M. J. last_name: Green - first_name: D. full_name: Jarvis, D. last_name: Jarvis - first_name: M. R. full_name: Kennedy, M. R. last_name: Kennedy - first_name: P. full_name: Kerry, P. last_name: Kerry - first_name: J. full_name: Mccormac, J. last_name: Mccormac - first_name: J. full_name: Munday, J. last_name: Munday - first_name: I. full_name: Pelisoli, I. last_name: Pelisoli - first_name: E. full_name: Pike, E. last_name: Pike - first_name: D. I. full_name: Sahman, D. I. last_name: Sahman - first_name: A. full_name: Yates, A. last_name: Yates citation: ama: 'Parsons SG, Brown AJ, Casewell SL, et al. ZTF J021804.16+071152.93: A dead cataclysmic variable and potential solution to the missing period bouncer cataclysmic variables. Monthly Notices of the Royal Astronomical Society. 2026;547(4). doi:10.1093/mnras/stag521' apa: 'Parsons, S. G., Brown, A. J., Casewell, S. L., Littlefair, S. P., van Roestel, J. C., Rebassa-Mansergas, A., … Yates, A. (2026). ZTF J021804.16+071152.93: A dead cataclysmic variable and potential solution to the missing period bouncer cataclysmic variables. Monthly Notices of the Royal Astronomical Society. Oxford University Press. https://doi.org/10.1093/mnras/stag521' chicago: 'Parsons, S. G., A. J. Brown, S. L. Casewell, S. P. Littlefair, Joannes C van Roestel, A. Rebassa-Mansergas, R. Murillo-Ojeda, et al. “ZTF J021804.16+071152.93: A Dead Cataclysmic Variable and Potential Solution to the Missing Period Bouncer Cataclysmic Variables.” Monthly Notices of the Royal Astronomical Society. Oxford University Press, 2026. https://doi.org/10.1093/mnras/stag521.' ieee: 'S. G. Parsons et al., “ZTF J021804.16+071152.93: A dead cataclysmic variable and potential solution to the missing period bouncer cataclysmic variables,” Monthly Notices of the Royal Astronomical Society, vol. 547, no. 4. Oxford University Press, 2026.' ista: 'Parsons SG, Brown AJ, Casewell SL, Littlefair SP, van Roestel JC, Rebassa-Mansergas A, Murillo-Ojeda R, Zorotovic M, Schreiber MR, Bagnulo S, Stroet MA, Castro Segura N, Dhillon VS, Dyer MJ, Garbutt JA, Green MJ, Jarvis D, Kennedy MR, Kerry P, Mccormac J, Munday J, Pelisoli I, Pike E, Sahman DI, Yates A. 2026. ZTF J021804.16+071152.93: A dead cataclysmic variable and potential solution to the missing period bouncer cataclysmic variables. Monthly Notices of the Royal Astronomical Society. 547(4), stag521.' mla: 'Parsons, S. G., et al. “ZTF J021804.16+071152.93: A Dead Cataclysmic Variable and Potential Solution to the Missing Period Bouncer Cataclysmic Variables.” Monthly Notices of the Royal Astronomical Society, vol. 547, no. 4, stag521, Oxford University Press, 2026, doi:10.1093/mnras/stag521.' short: S.G. Parsons, A.J. Brown, S.L. Casewell, S.P. Littlefair, J.C. van Roestel, A. Rebassa-Mansergas, R. Murillo-Ojeda, M. Zorotovic, M.R. Schreiber, S. Bagnulo, M.A. Stroet, N. Castro Segura, V.S. Dhillon, M.J. Dyer, J.A. Garbutt, M.J. Green, D. Jarvis, M.R. Kennedy, P. Kerry, J. Mccormac, J. Munday, I. Pelisoli, E. Pike, D.I. Sahman, A. Yates, Monthly Notices of the Royal Astronomical Society 547 (2026). date_created: 2026-05-03T22:01:37Z date_published: 2026-04-01T00:00:00Z date_updated: 2026-05-07T07:51:58Z day: '01' ddc: - '520' department: - _id: IlCa doi: 10.1093/mnras/stag521 external_id: arxiv: - '2603.12888' file: - access_level: open_access checksum: a64094199db4dedb12fc121b7c65fe97 content_type: application/pdf creator: dernst date_created: 2026-05-07T07:51:06Z date_updated: 2026-05-07T07:51:06Z file_id: '21834' file_name: 2026_MNRAS_Parsons.pdf file_size: 5955512 relation: main_file success: 1 file_date_updated: 2026-05-07T07:51:06Z fulldoi: https://doi.org/10.1093/mnras/stag521 has_accepted_license: '1' intvolume: ' 547' issue: '4' language: - iso: eng month: '04' oa: 1 oa_version: Published Version publication: Monthly Notices of the Royal Astronomical Society publication_identifier: eissn: - 1365-2966 issn: - 0035-8711 publication_status: published publisher: Oxford University Press quality_controlled: '1' scopus_import: '1' status: public title: 'ZTF J021804.16+071152.93: A dead cataclysmic variable and potential solution to the missing period bouncer cataclysmic variables' 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: 547 year: '2026' ... --- OA_place: repository OA_type: green _id: '21781' abstract: - lang: eng text: "Given a set A of n points (vertices) in general position in the plane, the complete geometric graph \r\nKn[A] consists of all (n2) segments (edges) between the elements of A. It is known that the edge set of every complete geometric graph on n vertices can be partitioned into O(n3∕2) crossing-free paths (or matchings). We strengthen this result under various additional assumptions on the point set. In particular, we prove that for a set A of n randomly selected points, uniformly distributed in [0,1]2, with probability tending to 1 as n→∞, the edge set of Kn[A] can be covered by O(nlogn) crossing-free paths and by O(n√logn) crossing-free matchings. On the other hand, we construct n-element point sets such that covering the edge set of Kn[A] requires a quadratic number of monotone paths." acknowledgement: "Research partially supported by ERC Advanced Grant \"GeoScape\", no. 882971 and\r\nHungarian NKFIH grant no. K-131529. Work by the third author is supported by EPSRC grant\r\nEP/X013642/1. Work by the third author is partially supported by the European Research Council (ERC), grant no. 788183, and by the Wittgenstein Prize, Austrian Science Fund (FWF), grant no. Z 342-N31." article_processing_charge: No article_type: original arxiv: 1 author: - first_name: Adrian full_name: Dumitrescu, Adrian last_name: Dumitrescu - first_name: János full_name: Pach, János last_name: Pach - first_name: Morteza full_name: Saghafian, Morteza id: f86f7148-b140-11ec-9577-95435b8df824 last_name: Saghafian - first_name: Alex full_name: Scott, Alex last_name: Scott citation: ama: Dumitrescu A, Pach J, Saghafian M, Scott A. Covering complete geometric graphs by monotone paths. Combinatorics and Number Theory. 2026;15(1):73-82. doi:10.2140/cnt.2026.15.73 apa: Dumitrescu, A., Pach, J., Saghafian, M., & Scott, A. (2026). Covering complete geometric graphs by monotone paths. Combinatorics and Number Theory. Mathematical Sciences Publishers. https://doi.org/10.2140/cnt.2026.15.73 chicago: Dumitrescu, Adrian, János Pach, Morteza Saghafian, and Alex Scott. “Covering Complete Geometric Graphs by Monotone Paths.” Combinatorics and Number Theory. Mathematical Sciences Publishers, 2026. https://doi.org/10.2140/cnt.2026.15.73. ieee: A. Dumitrescu, J. Pach, M. Saghafian, and A. Scott, “Covering complete geometric graphs by monotone paths,” Combinatorics and Number Theory, vol. 15, no. 1. Mathematical Sciences Publishers, pp. 73–82, 2026. ista: Dumitrescu A, Pach J, Saghafian M, Scott A. 2026. Covering complete geometric graphs by monotone paths. Combinatorics and Number Theory. 15(1), 73–82. mla: Dumitrescu, Adrian, et al. “Covering Complete Geometric Graphs by Monotone Paths.” Combinatorics and Number Theory, vol. 15, no. 1, Mathematical Sciences Publishers, 2026, pp. 73–82, doi:10.2140/cnt.2026.15.73. short: A. Dumitrescu, J. Pach, M. Saghafian, A. Scott, Combinatorics and Number Theory 15 (2026) 73–82. date_created: 2026-05-03T22:01:37Z date_published: 2026-04-17T00:00:00Z date_updated: 2026-05-07T07:45:24Z day: '17' department: - _id: HeEd doi: 10.2140/cnt.2026.15.73 ec_funded: 1 external_id: arxiv: - '2507.10840' fulldoi: https://doi.org/10.2140/cnt.2026.15.73 intvolume: ' 15' issue: '1' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.48550/arXiv.2507.10840 month: '04' oa: 1 oa_version: Preprint page: 73-82 project: - _id: 266A2E9E-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '788183' name: Alpha Shape Theory Extended - _id: 268116B8-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: Z00342 name: Mathematics, Computer Science publication: Combinatorics and Number Theory publication_identifier: eissn: - 2996-220X issn: - 2996-2196 publication_status: published publisher: Mathematical Sciences Publishers quality_controlled: '1' scopus_import: '1' status: public title: Covering complete geometric graphs by monotone paths type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 15 year: '2026' ... --- OA_place: repository OA_type: green _id: '21798' abstract: - lang: eng text: 'Phase singularities—points carrying quantized topological charge—are universal features found across diverse wave systems from superfluids and superconductors to acoustic and optical fields1,2,3,4. Ensembles of these singularities exhibit distance correlations resembling particles in liquids5,6,7,8, extensively studied for their role in exotic material phases9,10,11. By contrast, the full correlations in phase space that govern the system evolution have remained unexplored and experimentally inaccessible. Here we directly measure the ultrafast dynamics of optical singularity ensembles, capturing their full phase-space correlations, presenting the joint distance–velocity distribution. Our observations show a breakdown of the particle-singularity analogy12: phase singularities accelerate towards formally divergent velocities in the moment before annihilation7,13,14, indicated by measurements of velocities exceeding the speed of light. These apparent superluminal velocities are paradoxically amplified by the slow group velocity of hyperbolic phonon polaritons in our material platform, hexagonal boron nitride membranes15,16,17,18,19. We demonstrate these phenomena using combined hardware and algorithmic advances in ultrafast electron microscopy18,20,21,22,23,24,25, achieving spatial and temporal resolutions, each an order of magnitude below the polaritonic wavelength and cycle period. Our findings deepen our understanding of phase singularities and their universality, enabling to probe topological defect dynamics at previously unattainable timescales.' article_processing_charge: No article_type: original arxiv: 1 author: - first_name: T. full_name: Bucher, T. last_name: Bucher - first_name: A. full_name: Gorlach, A. last_name: Gorlach - first_name: A. full_name: Niedermayr, A. last_name: Niedermayr - first_name: Q. full_name: Yan, Q. last_name: Yan - first_name: H. full_name: Nahari, H. last_name: Nahari - first_name: K. full_name: Wang, K. last_name: Wang - first_name: R. full_name: Ruimy, R. last_name: Ruimy - first_name: Y. full_name: Adiv, Y. last_name: Adiv - first_name: M. full_name: Yannai, M. last_name: Yannai - first_name: T. L. full_name: Abudi, T. L. last_name: Abudi - first_name: E. full_name: Janzen, E. last_name: Janzen - first_name: C. full_name: Spaegele, C. last_name: Spaegele - first_name: Charles full_name: Roques-Carmes, Charles id: e2e68fc9-6505-11ef-a541-eb4e72cc3e82 last_name: Roques-Carmes - first_name: J. H. full_name: Edgar, J. H. last_name: Edgar - first_name: F. H. L. full_name: Koppens, F. H. L. last_name: Koppens - first_name: G. M. full_name: Vanacore, G. M. last_name: Vanacore - first_name: H. full_name: H. Sheinfux, H. last_name: H. Sheinfux - first_name: S. full_name: Tsesses, S. last_name: Tsesses - first_name: I. full_name: Kaminer, I. last_name: Kaminer citation: ama: Bucher T, Gorlach A, Niedermayr A, et al. Superluminal correlations in ensembles of optical phase singularities. Nature. 2026;651(8107):920-926. doi:10.1038/s41586-026-10209-z apa: Bucher, T., Gorlach, A., Niedermayr, A., Yan, Q., Nahari, H., Wang, K., … Kaminer, I. (2026). Superluminal correlations in ensembles of optical phase singularities. Nature. Springer Nature. https://doi.org/10.1038/s41586-026-10209-z chicago: Bucher, T., A. Gorlach, A. Niedermayr, Q. Yan, H. Nahari, K. Wang, R. Ruimy, et al. “Superluminal Correlations in Ensembles of Optical Phase Singularities.” Nature. Springer Nature, 2026. https://doi.org/10.1038/s41586-026-10209-z. ieee: T. Bucher et al., “Superluminal correlations in ensembles of optical phase singularities,” Nature, vol. 651, no. 8107. Springer Nature, pp. 920–926, 2026. ista: Bucher T, Gorlach A, Niedermayr A, Yan Q, Nahari H, Wang K, Ruimy R, Adiv Y, Yannai M, Abudi TL, Janzen E, Spaegele C, Roques-Carmes C, Edgar JH, Koppens FHL, Vanacore GM, H. Sheinfux H, Tsesses S, Kaminer I. 2026. Superluminal correlations in ensembles of optical phase singularities. Nature. 651(8107), 920–926. mla: Bucher, T., et al. “Superluminal Correlations in Ensembles of Optical Phase Singularities.” Nature, vol. 651, no. 8107, Springer Nature, 2026, pp. 920–26, doi:10.1038/s41586-026-10209-z. short: T. Bucher, A. Gorlach, A. Niedermayr, Q. Yan, H. Nahari, K. Wang, R. Ruimy, Y. Adiv, M. Yannai, T.L. Abudi, E. Janzen, C. Spaegele, C. Roques-Carmes, J.H. Edgar, F.H.L. Koppens, G.M. Vanacore, H. H. Sheinfux, S. Tsesses, I. Kaminer, Nature 651 (2026) 920–926. date_created: 2026-05-05T11:05:31Z date_published: 2026-03-25T00:00:00Z date_updated: 2026-05-05T11:10:07Z day: '25' doi: 10.1038/s41586-026-10209-z extern: '1' external_id: arxiv: - '2509.17675' fulldoi: https://doi.org/10.1038/s41586-026-10209-z intvolume: ' 651' issue: '8107' language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.48550/arXiv.2509.17675 month: '03' oa: 1 oa_version: Preprint page: 920-926 publication: Nature publication_identifier: eissn: - 1476-4687 issn: - 0028-0836 publication_status: published publisher: Springer Nature quality_controlled: '1' scopus_import: '1' status: public title: Superluminal correlations in ensembles of optical phase singularities type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 651 year: '2026' ... --- OA_place: repository OA_type: green _id: '21800' abstract: - lang: eng text: 'LAMMPS input scripts to simulate toroidal vesicles composed of pure bolalipid membranes and archaeal mixture membranes for the following publication: "Cracking donuts and sorting lipids: geometry controls archaeal membrane stability and lipid organization" by Felix Frey, Miguel Amaral, and Andela Saric.' article_processing_charge: No author: - first_name: Felix F full_name: Frey, Felix F id: a0270b37-8f1a-11ec-95c7-8e710c59a4f3 last_name: Frey orcid: 0000-0001-8501-6017 - first_name: Miguel full_name: Santana de Freitas Amaral, Miguel id: 4f2d02dd-47a9-11ec-ad10-82820ed3f501 last_name: Santana de Freitas Amaral - first_name: Anđela full_name: Šarić, Anđela id: bf63d406-f056-11eb-b41d-f263a6566d8b last_name: Šarić orcid: 0000-0002-7854-2139 citation: ama: 'Frey FF, Santana de Freitas Amaral M, Šarić A. Cracking donuts and sorting lipids: Geometry controls archaeal membrane stability and lipid organization. 2026. doi:10.5281/ZENODO.18772086' apa: 'Frey, F. F., Santana de Freitas Amaral, M., & Šarić, A. (2026). Cracking donuts and sorting lipids: Geometry controls archaeal membrane stability and lipid organization. Zenodo. https://doi.org/10.5281/ZENODO.18772086' chicago: 'Frey, Felix F, Miguel Santana de Freitas Amaral, and Anđela Šarić. “Cracking Donuts and Sorting Lipids: Geometry Controls Archaeal Membrane Stability and Lipid Organization.” Zenodo, 2026. https://doi.org/10.5281/ZENODO.18772086.' ieee: 'F. F. Frey, M. Santana de Freitas Amaral, and A. Šarić, “Cracking donuts and sorting lipids: Geometry controls archaeal membrane stability and lipid organization.” Zenodo, 2026.' ista: 'Frey FF, Santana de Freitas Amaral M, Šarić A. 2026. Cracking donuts and sorting lipids: Geometry controls archaeal membrane stability and lipid organization, Zenodo, 10.5281/ZENODO.18772086.' mla: 'Frey, Felix F., et al. Cracking Donuts and Sorting Lipids: Geometry Controls Archaeal Membrane Stability and Lipid Organization. Zenodo, 2026, doi:10.5281/ZENODO.18772086.' short: F.F. Frey, M. Santana de Freitas Amaral, A. Šarić, (2026). corr_author: '1' date_created: 2026-05-05T12:11:52Z date_published: 2026-02-25T00:00:00Z date_updated: 2026-05-05T12:40:41Z day: '25' ddc: - '540' department: - _id: AnSa doi: 10.5281/ZENODO.18772086 fulldoi: https://doi.org/10.5281/ZENODO.18772086 main_file_link: - open_access: '1' url: https://doi.org/10.5281/ZENODO.18772086 month: '02' oa: 1 oa_version: Published Version publisher: Zenodo related_material: record: - id: '21748' relation: used_in_publication status: public status: public title: 'Cracking donuts and sorting lipids: Geometry controls archaeal membrane stability and lipid organization' type: research_data_reference user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 year: '2026' ...