---
DOAJ_listed: '1'
OA_place: publisher
OA_type: diamond
PlanS_conform: '1'
_id: '21951'
abstract:
- lang: eng
text: "The central engines of Little Red Dots (LRDs) may be “black hole stars” (BH*s),
early stages of\r\nblack hole growth characterized by dense gas envelopes. So
far, the most direct evidence for BH*s\r\ncomes from a handful of sources where
the host galaxy is completely outshone as suggested by their\r\nremarkably steep
Balmer breaks. Here we present a novel scheme to disentangle BH*s from their\r\nhost
galaxies assuming that the [O III]5008˚A line arises exclusively from the host.
Using a sample\r\nof 98 LRDs (z ≈ 2 − 9) with high quality NIRSpec/PRISM spectra,
we demonstrate that the hostsubtracted median stack displays a Balmer break >
2× stronger than massive quiescent galaxies,\r\nwith the rest-optical continuum
resembling a blackbody-like SED (Teff ≈ 4050 K, log(Lbol) ≈ 43.9\r\nerg s−1\r\n,
Reff ≈ 1300 au). We measure a steep Balmer decrement (Hα/Hβ > 10) and numerous\r\ndensity-sensitive
features (e.g., Fe II, He I, O I). These are hallmark signatures of dense gas
envelopes,\r\nproviding population-level evidence that BH*s indeed power LRDs.
In the median LRD, BH*s account\r\nfor ∼ 20% of the UV emission, ∼ 50% at the
Balmer break, and ∼ 90% at wavelengths longer\r\nthan Hα with the remainder arising
from the host. BH*s preferentially reside in low-mass galaxies\r\n(M⋆ ≈ 108 M⊙)
undergoing recent starbursts, as evidenced by extreme emission line EWs (e.g.,\r\n[O
III]5008˚A≈ 1100˚A, C III]≈ 12˚A), thereby favoring BH* origins linked to star-formation.
We show\r\nV-shaped LRD selections are biased to high BH*/host fractions (≳ 60%
at 5500˚A) – less dominant\r\nBH*s may be powering JWST’s blue broad-line AGN.
We find BH*s are so commonplace and transient\r\n(duty cycle ∼ 1%, lifetime ∼
10 Myrs) that every massive black hole may have once shone as a BH*.\r\n"
acknowledgement: "We thank the two anonymous referees for their insightful comments
that have strengthened this work.\r\nWQS and RPN acknowledge funding from JWST programs
GO-3516, GO-5224, and the MIT Undergraduate\r\nResearch Opportunities Program (UROP).
Support for\r\nthis work was provided by NASA through the NASA\r\nHubble Fellowship
grant HST-HF2-51515.001-A awarded\r\nby the Space Telescope Science Institute, which
is operated by the Association of Universities for Research in\r\nAstronomy, Incorporated,
under NASA contract NAS5-\r\n26555. RPN thanks Neil Pappalardo and Jane Pappalardo
for their generous support of the MIT Pappalardo Fellowships in Physics, and for
their enthusiasm\r\nand encouragement for pursuing the earliest galaxies and\r\nblack
holes. JM and AT acknowledge funding from the\r\nEuropean Union (ERC, AGENTS, 101076224).
KEH\r\nacknowledges support from the Independent Research Fund Denmark (DFF) under
grant 5251-00009B and cofunding by the European Union (ERC, HEAVYMETAL,\r\n101071865).
Views and opinions expressed are, however,\r\nthose of the authors only and do not
necessarily reflect\r\nthose of the European Union or the European Research\r\nCouncil.
Neither the European Union nor the granting\r\nauthority can be held responsible
for them. REH acknowledges support by the German Aerospace Center\r\n(DLR) and the
Federal Ministry for Economic Affairs\r\nand Energy (BMWi) through program 50OR2403
‘RUBIES’.\r\nThe data products presented herein were retrieved\r\nfrom the Dawn
JWST Archive (DJA). DJA is an initiative of the Cosmic Dawn Center (DAWN), which
is\r\nfunded by the Danish National Research Foundation under grant DNRF140. This
work is based on observations\r\nmade with the NASA/ESA/CSA James Webb Space\r\nTelescope.
The data were obtained from the Mikulski Archive for Space Telescopes at the Space
Telescope\r\nScience Institute, which is operated by the Association\r\nof Universities
for Research in Astronomy, Inc., under\r\nNASA contract NAS 5-03127 for JWST. Support
for\r\nprograms #3516, #5224, #5664 was provided by NASA\r\nthrough grants from
the Space Telescope Science Institute, which is operated by the Association of Universities\r\nfor
Research in Astronomy, Inc., under NASA contract\r\nNAS 5-03127.\r\nThe spectra
used in this paper are associated with programs 1180 (D’Eugenio et al. 2025d), 1181
(PI: D. Eisenstein), 1208 (Willott et al. 2022), 1210 (PI: N. Luetzgendorf), 1211
(Maseda et al. 2024), 1212 - 1215 (PI: N.\r\nLuetzgendorf), 1228 (Luhman et al.
2024b), 1229 (Luhman et al. 2024a), 1286 (PI: N. Luetzgendorf), 1287 (PI:\r\nK.
Isaak), 1345 (Finkelstein et al. 2023), 1433 (Hsiao\r\net al. 2024), 1747 (PI: G.
Roberts-Borsani), 2028 (Wang\r\net al. 2024c), 2073 (PI: J. Hennawi), 2198 (Barrufet\r\net
al. 2025), 2282 (Bradley et al. 2023), 2561 (Bezanson\r\net al. 2024), 2565 (Nanayakkara
et al. 2025), 2640 (PI:\r\nW. Best), 2750 (Arrabal Haro et al. 2023), 2756 (Mascia
et al. 2024), 2767 (Williams et al. 2023b), 2770 (PI:\r\nM. McCaughrean), 3073 (Castellano
et al. 2024), 3215\r\n(Eisenstein et al. 2025), 4106 (PI: E. Nelson), 4233 (de\r\nGraaff
et al. 2025c), 4446 (Frye et al. 2024), 4557 (PI: H.\r\nYan), 5105 (Shen et al.
2024), 5224 (PIs: P.A. Oesch &\r\nR.P. Naidu), 6368 (PI: M. Dickinson), 6541 (DeCoursey\r\net
al. 2025), 6585 (PI: D. Coulter), 6642 (PI: J. Muzerolle\r\nPage), and FRESCO IFU
(Matthee et al. 2024; Torralba\r\net al. 2025b).\r\nSoftware used in developing
this work includes:\r\nmatplotlib (Hunter 2007), jupyter (Kluyver et al.\r\n2016),
IPython (P´erez & Granger 2007), numpy\r\n(Oliphant 2015), scipy (Virtanen et al.
2020), TOPCAT\r\n(Taylor 2005), Astropy (Astropy Collaboration et al.\r\n2013),
msaexp (Brammer 2023)."
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Wendy Q.
full_name: Sun, Wendy Q.
last_name: Sun
- first_name: Rohan P.
full_name: Naidu, Rohan P.
last_name: Naidu
- first_name: Jorryt J
full_name: Matthee, Jorryt J
id: 7439a258-f3c0-11ec-9501-9df22fe06720
last_name: Matthee
orcid: 0000-0003-2871-127X
- first_name: Anna
full_name: De Graaff, Anna
last_name: De Graaff
- first_name: John
full_name: Chisholm, John
last_name: Chisholm
- first_name: Jenny E.
full_name: Greene, Jenny E.
last_name: Greene
- first_name: Pascal A.
full_name: Oesch, Pascal A.
last_name: Oesch
- first_name: Alberto
full_name: Torralba Torregrosa, Alberto
id: 018f0249-0e87-11f0-b167-cbce08fbd541
last_name: Torralba Torregrosa
orcid: 0000-0001-5586-6950
- first_name: Raphael E.
full_name: Hviding, Raphael E.
last_name: Hviding
- first_name: Gabriel
full_name: Brammer, Gabriel
last_name: Brammer
- first_name: Robert A.
full_name: Simcoe, Robert A.
last_name: Simcoe
- first_name: Sownak
full_name: Bose, Sownak
last_name: Bose
- first_name: Rychard
full_name: Bouwens, Rychard
last_name: Bouwens
- first_name: Pratika
full_name: Dayal, Pratika
last_name: Dayal
- first_name: Anna Christina
full_name: Eilers, Anna Christina
last_name: Eilers
- first_name: Qinyue
full_name: Fei, Qinyue
last_name: Fei
- first_name: Lukas J.
full_name: Furtak, Lukas J.
last_name: Furtak
- first_name: Rashmi
full_name: Gottumukkala, Rashmi
last_name: Gottumukkala
- first_name: Andy
full_name: Goulding, Andy
last_name: Goulding
- first_name: Kasper E.
full_name: Heintz, Kasper E.
last_name: Heintz
- first_name: Michaela
full_name: Hirschmann, Michaela
last_name: Hirschmann
- first_name: Vasily
full_name: Kokorev, Vasily
last_name: Kokorev
- first_name: Joel
full_name: Leja, Joel
last_name: Leja
- first_name: Zhaoran
full_name: Liu, Zhaoran
last_name: Liu
- first_name: Priyamvada
full_name: Natarajan, Priyamvada
last_name: Natarajan
- first_name: Andrew D.
full_name: Santarelli, Andrew D.
last_name: Santarelli
- first_name: David J.
full_name: Setton, David J.
last_name: Setton
- first_name: Aaron
full_name: Smith, Aaron
last_name: Smith
- first_name: Sandro
full_name: Tacchella, Sandro
last_name: Tacchella
- first_name: Marta
full_name: Volonteri, Marta
last_name: Volonteri
- first_name: Fabian
full_name: Walter, Fabian
last_name: Walter
- first_name: Andrea
full_name: Weibel, Andrea
last_name: Weibel
- first_name: Christina C.
full_name: Williams, Christina C.
last_name: Williams
citation:
ama: 'Sun WQ, Naidu RP, Matthee JJ, et al. Little Red Dot - Host Galaxy = Black
Hole Star: A gas-enshrouded heart at the center of every Little Red Dot. The
Open Journal of Astrophysics. 2026;9. doi:10.33232/001c.162505'
apa: 'Sun, W. Q., Naidu, R. P., Matthee, J. J., De Graaff, A., Chisholm, J., Greene,
J. E., … Williams, C. C. (2026). Little Red Dot - Host Galaxy = Black Hole Star:
A gas-enshrouded heart at the center of every Little Red Dot. The Open Journal
of Astrophysics. Maynooth Academic Publishing. https://doi.org/10.33232/001c.162505'
chicago: 'Sun, Wendy Q., Rohan P. Naidu, Jorryt J Matthee, Anna De Graaff, John
Chisholm, Jenny E. Greene, Pascal A. Oesch, et al. “Little Red Dot - Host Galaxy
= Black Hole Star: A Gas-Enshrouded Heart at the Center of Every Little Red Dot.”
The Open Journal of Astrophysics. Maynooth Academic Publishing, 2026. https://doi.org/10.33232/001c.162505.'
ieee: 'W. Q. Sun et al., “Little Red Dot - Host Galaxy = Black Hole Star:
A gas-enshrouded heart at the center of every Little Red Dot,” The Open Journal
of Astrophysics, vol. 9. Maynooth Academic Publishing, 2026.'
ista: 'Sun WQ, Naidu RP, Matthee JJ, De Graaff A, Chisholm J, Greene JE, Oesch PA,
Torralba Torregrosa A, Hviding RE, Brammer G, Simcoe RA, Bose S, Bouwens R, Dayal
P, Eilers AC, Fei Q, Furtak LJ, Gottumukkala R, Goulding A, Heintz KE, Hirschmann
M, Kokorev V, Leja J, Liu Z, Natarajan P, Santarelli AD, Setton DJ, Smith A, Tacchella
S, Volonteri M, Walter F, Weibel A, Williams CC. 2026. Little Red Dot - Host Galaxy
= Black Hole Star: A gas-enshrouded heart at the center of every Little Red Dot.
The Open Journal of Astrophysics. 9.'
mla: 'Sun, Wendy Q., et al. “Little Red Dot - Host Galaxy = Black Hole Star: A Gas-Enshrouded
Heart at the Center of Every Little Red Dot.” The Open Journal of Astrophysics,
vol. 9, Maynooth Academic Publishing, 2026, doi:10.33232/001c.162505.'
short: W.Q. Sun, R.P. Naidu, J.J. Matthee, A. De Graaff, J. Chisholm, J.E. Greene,
P.A. Oesch, A. Torralba Torregrosa, R.E. Hviding, G. Brammer, R.A. Simcoe, S.
Bose, R. Bouwens, P. Dayal, A.C. Eilers, Q. Fei, L.J. Furtak, R. Gottumukkala,
A. Goulding, K.E. Heintz, M. Hirschmann, V. Kokorev, J. Leja, Z. Liu, P. Natarajan,
A.D. Santarelli, D.J. Setton, A. Smith, S. Tacchella, M. Volonteri, F. Walter,
A. Weibel, C.C. Williams, The Open Journal of Astrophysics 9 (2026).
date_created: 2026-06-07T22:01:36Z
date_published: 2026-05-25T00:00:00Z
date_updated: 2026-06-08T08:25:40Z
day: '25'
ddc:
- '520'
department:
- _id: JoMa
doi: 10.33232/001c.162505
external_id:
arxiv:
- '2601.20929'
file:
- access_level: open_access
checksum: 33c4a444f7c37b3f47ecbd53eb187c1b
content_type: application/pdf
creator: dernst
date_created: 2026-06-08T08:23:37Z
date_updated: 2026-06-08T08:23:37Z
file_id: '21952'
file_name: 2026_OpenJourAstrophysics_Sun.pdf
file_size: 7591188
relation: main_file
success: 1
file_date_updated: 2026-06-08T08:23:37Z
fulldoi: https://doi.org/10.33232/001c.162505
has_accepted_license: '1'
intvolume: ' 9'
language:
- iso: eng
month: '05'
oa: 1
oa_version: Published Version
project:
- _id: bd9b2118-d553-11ed-ba76-db24564edfea
grant_number: '101076224'
name: Young galaxies as tracers and agents of cosmic reionization
publication: The Open Journal of Astrophysics
publication_identifier:
eissn:
- 2565-6120
publication_status: published
publisher: Maynooth Academic Publishing
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Little Red Dot - Host Galaxy = Black Hole Star: A gas-enshrouded heart at
the center of every Little Red Dot'
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 9
year: '2026'
...
---
OA_place: publisher
OA_type: hybrid
PlanS_conform: '1'
_id: '21954'
abstract:
- lang: eng
text: We investigate a framework for train-free MRI segmentation based on Topological
Data Analysis. The pipeline proceeds in three steps, first identifying the whole
object to segment via automatic thresholding, then detecting a distinctive subset
whose topology is known in advance, and finally deducing the various components
of the segmentation. A key ingredient is the extraction of approximate representative
cycles from persistence diagrams, which provides an interpretable link between
persistent features and anatomical components. To clarify the method’s scope,
we make the underlying topological and intensity assumptions explicit, quantify
when they hold on real data, and analyze typical failure modes. We evaluate the
approach on glioblastoma and on fetal cortical plate segmentation, with comparisons
to unsupervised and deep-learning references. By operating without large annotated
datasets, the method is well suited to scarce-data settings and provides an interpretable
baseline and practical initialization for expert refinement or learning-based
pipelines.
acknowledgement: Open access funding provided by Institute of Science and Technology
(IST Austria).
article_number: '20'
article_processing_charge: Yes (via OA deal)
article_type: original
arxiv: 1
author:
- first_name: Anton
full_name: François, Anton
last_name: François
- first_name: Raphaël
full_name: Tinarrage, Raphaël
id: 40ebcc9d-905f-11ef-bf0a-dc475da8a04e
last_name: Tinarrage
orcid: 0000-0002-1404-1095
citation:
ama: François A, Tinarrage R. Train-free segmentation in MRI with cubical persistent
homology. Journal of Mathematical Imaging and Vision. 2026;68(3). doi:10.1007/s10851-026-01300-1
apa: François, A., & Tinarrage, R. (2026). Train-free segmentation in MRI with
cubical persistent homology. Journal of Mathematical Imaging and Vision.
Springer Nature. https://doi.org/10.1007/s10851-026-01300-1
chicago: François, Anton, and Raphaël Tinarrage. “Train-Free Segmentation in MRI
with Cubical Persistent Homology.” Journal of Mathematical Imaging and Vision.
Springer Nature, 2026. https://doi.org/10.1007/s10851-026-01300-1.
ieee: A. François and R. Tinarrage, “Train-free segmentation in MRI with cubical
persistent homology,” Journal of Mathematical Imaging and Vision, vol.
68, no. 3. Springer Nature, 2026.
ista: François A, Tinarrage R. 2026. Train-free segmentation in MRI with cubical
persistent homology. Journal of Mathematical Imaging and Vision. 68(3), 20.
mla: François, Anton, and Raphaël Tinarrage. “Train-Free Segmentation in MRI with
Cubical Persistent Homology.” Journal of Mathematical Imaging and Vision,
vol. 68, no. 3, 20, Springer Nature, 2026, doi:10.1007/s10851-026-01300-1.
short: A. François, R. Tinarrage, Journal of Mathematical Imaging and Vision 68
(2026).
corr_author: '1'
date_created: 2026-06-08T08:34:43Z
date_published: 2026-05-25T00:00:00Z
date_updated: 2026-06-10T08:00:52Z
day: '25'
ddc:
- '510'
department:
- _id: UlWa
doi: 10.1007/s10851-026-01300-1
external_id:
arxiv:
- '2401.01160'
file:
- access_level: open_access
checksum: 34080653e0f9c6160856a6bbca9b5248
content_type: application/pdf
creator: dernst
date_created: 2026-06-10T07:58:58Z
date_updated: 2026-06-10T07:58:58Z
file_id: '21990'
file_name: 2026_JourMathImaging_Francois.pdf
file_size: 6070434
relation: main_file
success: 1
file_date_updated: 2026-06-10T07:58:58Z
fulldoi: https://doi.org/10.1007/s10851-026-01300-1
has_accepted_license: '1'
intvolume: ' 68'
issue: '3'
language:
- iso: eng
month: '05'
oa: 1
oa_version: Published Version
publication: Journal of Mathematical Imaging and Vision
publication_identifier:
eissn:
- 1573-7683
issn:
- 0924-9907
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Train-free segmentation in MRI with cubical persistent homology
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: 68
year: '2026'
...
---
OA_place: repository
OA_type: green
_id: '21955'
abstract:
- lang: eng
text: 'AgRP neurons cause hunger, the drive to seek and consume food. Their activation
by fasting is key for survival and is thought to be triggered by feedback when
energy stores are low. However, we know that environmental cues can also regulate
AgRP neurons since cues that predict future food intake rapidly inhibit AgRP neurons,
but is the converse true: can the prediction of future fasting rapidly activate
AgRP neurons? Here, we show in mice that such rapid fasting activation of AgRP
neurons does occur. This rapid activation is driven by excitatory input from paraventricular
hypothalamic (PVH) neurons expressing Sim2, which are bidirectionally sensitive
to predictions of future energy state. Thus, cognitively processed contextual
information conveyed by PVHSim2 neurons strongly activates AgRP neurons. Lastly,
chronic silencing of PVHSim2 neurons causes persistent hypophagia. This PVHSim2-to-AgRP-neuron
circuit, by anticipating and preventing negative energy balance, provides an important
new dimension of hunger regulation.'
acknowledgement: "We thank all members of the B.B.L. laboratory for helpful discussions.
We\r\nthank the BADERC and BNORC transgenic cores (NIH P30DK057521 and\r\nP30DK046200)
for performing embryo injections to generate knockin mouse\r\nlines. We also thank
the BIDMC Energy Balance Core (supported by NIH\r\nS10OD028635 and the Boston Area
Diabetes Endocrinology Research Centers, P30DK135043), where Marissa Cortopassi
performed indirect calorimetry experiments and Alexander Banks assisted with data
analysis and interpretation. Confocal imaging was performed at BIDMC’s Confocal
Imaging\r\nCore. We thank Chen Wu for assistance in designing knockin mouse lines.\r\nThis
work was supported by the NIH (R01DK134427, R01DK096010, and\r\nR01DK075632 to B.B.L.).
Authors were supported by an EMBO Long-Term\r\nFellowship (770-2018, S.J.W.), a
T32 Postdoctoral Training Fellowship\r\n(5T32DK007516, E.D.L.), the Charles A. King
Trust Postdoctoral Research\r\nFellowship program (A.M.D.), and a K99 Career Development
Award\r\n(K99HL144923, J.M.R.)."
article_processing_charge: No
article_type: original
author:
- first_name: Samuel J.
full_name: Walker, Samuel J.
last_name: Walker
- first_name: Elijah D.
full_name: Lowenstein, Elijah D.
last_name: Lowenstein
- first_name: Amelia May Barnett
full_name: Douglass, Amelia May Barnett
id: de5f6fda-80fb-11ef-996f-a8c4ecd8e289
last_name: Douglass
orcid: 0000-0001-5398-6473
- first_name: Callum M.P.
full_name: Thomas, Callum M.P.
last_name: Thomas
- first_name: Joseph C.
full_name: Madara, Joseph C.
last_name: Madara
- first_name: Hakan
full_name: Kucukdereli, Hakan
last_name: Kucukdereli
- first_name: Eunice A.
full_name: Barbosa-Meillon, Eunice A.
last_name: Barbosa-Meillon
- first_name: Jenkang
full_name: Tao, Jenkang
last_name: Tao
- first_name: Jon M.
full_name: Resch, Jon M.
last_name: Resch
- first_name: Bradford B.
full_name: Lowell, Bradford B.
last_name: Lowell
citation:
ama: Walker SJ, Lowenstein ED, Douglass AM, et al. A hypothalamic circuit for anticipating
future changes in energy balance. Neuron. doi:10.1016/j.neuron.2026.05.010
apa: Walker, S. J., Lowenstein, E. D., Douglass, A. M., Thomas, C. M. P., Madara,
J. C., Kucukdereli, H., … Lowell, B. B. (n.d.). A hypothalamic circuit for anticipating
future changes in energy balance. Neuron. Elsevier. https://doi.org/10.1016/j.neuron.2026.05.010
chicago: Walker, Samuel J., Elijah D. Lowenstein, Amelia M. Douglass, Callum M.P.
Thomas, Joseph C. Madara, Hakan Kucukdereli, Eunice A. Barbosa-Meillon, Jenkang
Tao, Jon M. Resch, and Bradford B. Lowell. “A Hypothalamic Circuit for Anticipating
Future Changes in Energy Balance.” Neuron. Elsevier, n.d. https://doi.org/10.1016/j.neuron.2026.05.010.
ieee: S. J. Walker et al., “A hypothalamic circuit for anticipating future
changes in energy balance,” Neuron. Elsevier.
ista: Walker SJ, Lowenstein ED, Douglass AM, Thomas CMP, Madara JC, Kucukdereli
H, Barbosa-Meillon EA, Tao J, Resch JM, Lowell BB. A hypothalamic circuit for
anticipating future changes in energy balance. Neuron.
mla: Walker, Samuel J., et al. “A Hypothalamic Circuit for Anticipating Future Changes
in Energy Balance.” Neuron, Elsevier, doi:10.1016/j.neuron.2026.05.010.
short: S.J. Walker, E.D. Lowenstein, A.M. Douglass, C.M.P. Thomas, J.C. Madara,
H. Kucukdereli, E.A. Barbosa-Meillon, J. Tao, J.M. Resch, B.B. Lowell, Neuron
(n.d.).
date_created: 2026-06-08T09:24:25Z
date_published: 2026-06-03T00:00:00Z
date_updated: 2026-06-16T08:35:11Z
day: '03'
department:
- _id: AmDo
doi: 10.1016/j.neuron.2026.05.010
external_id:
pmid:
- '42235510'
fulldoi: https://doi.org/10.1016/j.neuron.2026.05.010
keyword:
- hunger
- hypothalamus
- AGRP neurons
- neuroscience
- metabolism
- homeostasis
- feeding
- food intake
- energy balance
- appetite
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1101/2025.09.27.678865
month: '06'
oa: 1
oa_version: Preprint
pmid: 1
publication: Neuron
publication_identifier:
eissn:
- ' 1097-4199'
issn:
- 0896-6273
publication_status: inpress
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: A hypothalamic circuit for anticipating future changes in energy balance
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2026'
...
---
OA_place: repository
OA_type: green
_id: '21962'
abstract:
- lang: eng
text: The generation of faithful cell-type diversity and correct projection neuron
numbers is essential for cerebral cortex development. Corticogenesis is however
susceptible to genetic interference of critical signaling pathways, including
mutations in Mtor/Rptor that lead to microcephaly. How the loss of Rptor/mTORC1
function affects cortical developmental programs, at single cell level, is still
unknown. Here, we utilized Mosaic Analysis with Double Markers (MADM) technology
to probe Rptor gene function upon sparse single cell- or global tissue-wide ablation.
We found that tissue-wide effects drive the etiology of cortical microcephaly
upon loss of Rptor, rather than deficits in projection neuron genesis. Conversely,
Rptor function is cell-autonomously required for postnatal projection neuron survival
in a highly cell-type-specific manner. Collectively, our results suggest that
the fine balance of precise cell-type-specific cell-autonomous Rptor/mTORC1 function
in concert with non-cell-autonomous tissue-wide effects is essential for the development
of a properly-sized cerebral cortex with accurate projection neuron diversity.
acknowledged_ssus:
- _id: PreCl
- _id: LifeSc
- _id: MassSpec
- _id: Bio
acknowledgement: "We thank A. Heger (IST Austria Preclinical Facility), A. Sommer
(VBCF GmbH, NGS Unit), and A.\r\nNicolas (IST Austria Lab Support Facility / Mass
Spectrometry Facility) for technical support; K. Ferencak,\r\nI. Aykara, P. Hirschfeld,
E. Fisher, S. Laukoter, L. Andersen for initial experiments and/or assistance; and\r\nall
members of the Hippenmeyer lab for discussion. This research was supported by the
Scientific Service\r\nUnits (SSU) of IST Austria through resources provided by the
Imaging and Optics- (IOF), Lab Support-\r\n(LSF) and Preclinical Facilities (PCF).
R.B. received support from FWF Meitner-Programm (M 2416). This\r\nwork was also
supported by IST Austria institutional funds; the People Programme (Marie Curie
Actions)\r\nof the European Union’s Seventh Framework Programme (FP7/2007-2013)
under REA grant agreement\r\nNo 618444 to S.H., and the European Research Council
(ERC) under the European Union’s Horizon 2020\r\nresearch and innovation programme
(grant agreement No 725780 LinPro) to S.H."
article_processing_charge: No
author:
- first_name: Ana
full_name: Villalba Requena, Ana
id: 68cb85a0-39f7-11eb-9559-9aaab4f6a247
last_name: Villalba Requena
orcid: 0000-0002-5615-5277
- first_name: Robert J
full_name: Beattie, Robert J
id: 2E26DF60-F248-11E8-B48F-1D18A9856A87
last_name: Beattie
orcid: 0000-0002-8483-8753
- first_name: Florian
full_name: Pauler, Florian
id: 48EA0138-F248-11E8-B48F-1D18A9856A87
last_name: Pauler
orcid: 0000-0002-7462-0048
- first_name: Carmen
full_name: Streicher, Carmen
id: 36BCB99C-F248-11E8-B48F-1D18A9856A87
last_name: Streicher
- first_name: Osvaldo
full_name: Miranda, Osvaldo
id: 862A3C56-A8BF-11E9-B4FA-D9E3E5697425
last_name: Miranda
orcid: 0000-0001-6618-6889
- first_name: Thomas
full_name: Krausgruber, Thomas
last_name: Krausgruber
- first_name: Martin
full_name: Senekowitsch, Martin
last_name: Senekowitsch
- first_name: Matthias
full_name: Farlik, Matthias
last_name: Farlik
- first_name: Christoph
full_name: Bock, Christoph
last_name: Bock
- first_name: Thomas
full_name: Rülicke, Thomas
last_name: Rülicke
- first_name: Simon
full_name: Hippenmeyer, Simon
id: 37B36620-F248-11E8-B48F-1D18A9856A87
last_name: Hippenmeyer
orcid: 0000-0003-2279-1061
citation:
ama: Villalba Requena A, Beattie RJ, Pauler F, et al. Mtor/Rptor function globally
prevents cortical microcephaly and cell-autonomously promotes postnatal neuron
survival in cell type specific manner. bioRxiv. doi:10.64898/2026.05.01.722172
apa: Villalba Requena, A., Beattie, R. J., Pauler, F., Streicher, C., Miranda, O.,
Krausgruber, T., … Hippenmeyer, S. (n.d.). Mtor/Rptor function globally prevents
cortical microcephaly and cell-autonomously promotes postnatal neuron survival
in cell type specific manner. bioRxiv. https://doi.org/10.64898/2026.05.01.722172
chicago: Villalba Requena, Ana, Robert J Beattie, Florian Pauler, Carmen Streicher,
Osvaldo Miranda, Thomas Krausgruber, Martin Senekowitsch, et al. “Mtor/Rptor Function
Globally Prevents Cortical Microcephaly and Cell-Autonomously Promotes Postnatal
Neuron Survival in Cell Type Specific Manner.” BioRxiv, n.d. https://doi.org/10.64898/2026.05.01.722172.
ieee: A. Villalba Requena et al., “Mtor/Rptor function globally prevents
cortical microcephaly and cell-autonomously promotes postnatal neuron survival
in cell type specific manner,” bioRxiv. .
ista: Villalba Requena A, Beattie RJ, Pauler F, Streicher C, Miranda O, Krausgruber
T, Senekowitsch M, Farlik M, Bock C, Rülicke T, Hippenmeyer S. Mtor/Rptor function
globally prevents cortical microcephaly and cell-autonomously promotes postnatal
neuron survival in cell type specific manner. bioRxiv, 10.64898/2026.05.01.722172.
mla: Villalba Requena, Ana, et al. “Mtor/Rptor Function Globally Prevents Cortical
Microcephaly and Cell-Autonomously Promotes Postnatal Neuron Survival in Cell
Type Specific Manner.” BioRxiv, doi:10.64898/2026.05.01.722172.
short: A. Villalba Requena, R.J. Beattie, F. Pauler, C. Streicher, O. Miranda, T.
Krausgruber, M. Senekowitsch, M. Farlik, C. Bock, T. Rülicke, S. Hippenmeyer,
BioRxiv (n.d.).
date_created: 2026-06-09T08:08:18Z
date_published: 2026-05-05T00:00:00Z
date_updated: 2026-06-16T08:45:25Z
day: '05'
ddc:
- '570'
department:
- _id: SiHi
doi: 10.64898/2026.05.01.722172
ec_funded: 1
fulldoi: https://doi.org/10.64898/2026.05.01.722172
has_accepted_license: '1'
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc/4.0/
main_file_link:
- open_access: '1'
url: https://doi.org/10.64898/2026.05.01.722172
month: '05'
oa: 1
oa_version: Preprint
project:
- _id: 264E56E2-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: M02416
name: Molecular Mechanisms Regulating Gliogenesis in the Neocortex
- _id: 25D61E48-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '618444'
name: Molecular Mechanisms of Cerebral Cortex Development
- _id: 260018B0-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '725780'
name: Principles of Neural Stem Cell Lineage Progression in Cerebral Cortex Development
publication: bioRxiv
publication_status: submitted
status: public
title: Mtor/Rptor function globally prevents cortical microcephaly and cell-autonomously
promotes postnatal neuron survival in cell type specific manner
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: preprint
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2026'
...
---
OA_place: repository
OA_type: green
_id: '21963'
abstract:
- lang: eng
text: The cerebral cortex consists of immense numbers of neuronal and glial cell-types
derived from radial glial progenitor (RGP) cells. How RGPs generate appropriate
quantities of distinct cortical cell-types to safeguard a brain of correct size,
is not well understood. However, genetic aberration in human, including mutations
in PTEN, lead to cortical malformation such as macrocephaly, albeit with unknown
etiology. Here we utilized Mosaic Analysis with Double Markers (MADM)-based clonal
analysis and single cell phenotyping to decipher the role of Pten in neurogenic
and gliogenic RGP lineage progression during cortical ontogeny. While neurogenic
RGP lineage progression and projection neuron production was moderately altered
in the absence of Pten, cortical astrocyte production was drastically increased.
Through genetic epistasis experiments we show that the loss of Pten uncouples
astrocyte generation from essential growth factor signaling hubs, funneling into
MAPK. Collectively, our results suggest that Pten regulates RGP lineage progression
with distinct sequential functions in cortical projection neurogenesis and astrocyte
production to ensure the emergence of a correctly-sized cerebral cortex.
acknowledged_ssus:
- _id: Bio
- _id: LifeSc
- _id: PreCl
acknowledgement: "We thank Kay-Uwe Wagner (Wayne State University) for generously
sharing Jak1/2–flox mouse lines; A.\r\nSommer (VBCF GmbH, NGS Unit) for technical
support; N. Kim, V. Mick, S. Schnabl, S. Gobeil, and L.\r\nAndersen for technical
assistance; all members of the Hippenmeyer lab for discussion and B. Novitch for\r\ncomments
on earlier versions of the manuscript. This research was supported by the Scientific
Service Units\r\n(SSU) of IST Austria through resources provided by the Imaging
and Optics Facility (IOF), Lab Support-\r\n(LSF) and Preclinical Facilities (PCF).
O.A.M received support from the Austrian Academy of Sciences\r\nÖAW (DOC 186584),
and N.A. from FWF Elise Richter Program (Grant V1041T). This work was also\r\nsupported
by IST Austria institutional funds; FWF SFB F78 (Neuro Stem Modulation) to S.H.,
and the\r\nEuropean Research Council (ERC) under the European Union’s Horizon 2020
research and innovation\r\nprogramme (grant agreement No 725780 LinPro) to S.H."
article_processing_charge: No
author:
- first_name: Osvaldo
full_name: Miranda, Osvaldo
id: 862A3C56-A8BF-11E9-B4FA-D9E3E5697425
last_name: Miranda
orcid: 0000-0001-6618-6889
- first_name: Ximena
full_name: Contreras, Ximena
id: 475990FE-F248-11E8-B48F-1D18A9856A87
last_name: Contreras
- first_name: Florian
full_name: Pauler, Florian
id: 48EA0138-F248-11E8-B48F-1D18A9856A87
last_name: Pauler
orcid: 0000-0002-7462-0048
- first_name: Amarbayasgalan
full_name: Davaatseren, Amarbayasgalan
id: 70ADC922-B424-11E9-99E3-BA18E6697425
last_name: Davaatseren
- first_name: Nicole
full_name: Amberg, Nicole
id: 4CD6AAC6-F248-11E8-B48F-1D18A9856A87
last_name: Amberg
orcid: 0000-0002-3183-8207
- first_name: Carmen
full_name: Streicher, Carmen
id: 36BCB99C-F248-11E8-B48F-1D18A9856A87
last_name: Streicher
- first_name: Ana
full_name: Villalba Requena, Ana
id: 68cb85a0-39f7-11eb-9559-9aaab4f6a247
last_name: Villalba Requena
orcid: 0000-0002-5615-5277
- first_name: Anna-Magdalena
full_name: Heger, Anna-Magdalena
id: 4B76FFD2-F248-11E8-B48F-1D18A9856A87
last_name: Heger
- first_name: Corentine
full_name: Marie, Corentine
last_name: Marie
- first_name: Bassem A.
full_name: Hassan, Bassem A.
last_name: Hassan
- first_name: Thomas
full_name: Rülicke, Thomas
last_name: Rülicke
- first_name: Simon
full_name: Hippenmeyer, Simon
id: 37B36620-F248-11E8-B48F-1D18A9856A87
last_name: Hippenmeyer
orcid: 0000-0003-2279-1061
citation:
ama: Miranda O, Contreras X, Pauler F, et al. Pten orchestrates neurogenic radial
glia lineage progression and tunes neocortical astrocyte production. bioRxiv.
doi:10.64898/2026.05.01.722191
apa: Miranda, O., Contreras, X., Pauler, F., Davaatseren, A., Amberg, N., Streicher,
C., … Hippenmeyer, S. (n.d.). Pten orchestrates neurogenic radial glia lineage
progression and tunes neocortical astrocyte production. bioRxiv. https://doi.org/10.64898/2026.05.01.722191
chicago: Miranda, Osvaldo, Ximena Contreras, Florian Pauler, Amarbayasgalan Davaatseren,
Nicole Amberg, Carmen Streicher, Ana Villalba Requena, et al. “Pten Orchestrates
Neurogenic Radial Glia Lineage Progression and Tunes Neocortical Astrocyte Production.”
BioRxiv, n.d. https://doi.org/10.64898/2026.05.01.722191.
ieee: O. Miranda et al., “Pten orchestrates neurogenic radial glia lineage
progression and tunes neocortical astrocyte production,” bioRxiv. .
ista: Miranda O, Contreras X, Pauler F, Davaatseren A, Amberg N, Streicher C, Villalba
Requena A, Heger A-M, Marie C, Hassan BA, Rülicke T, Hippenmeyer S. Pten orchestrates
neurogenic radial glia lineage progression and tunes neocortical astrocyte production.
bioRxiv, 10.64898/2026.05.01.722191.
mla: Miranda, Osvaldo, et al. “Pten Orchestrates Neurogenic Radial Glia Lineage
Progression and Tunes Neocortical Astrocyte Production.” BioRxiv, doi:10.64898/2026.05.01.722191.
short: O. Miranda, X. Contreras, F. Pauler, A. Davaatseren, N. Amberg, C. Streicher,
A. Villalba Requena, A.-M. Heger, C. Marie, B.A. Hassan, T. Rülicke, S. Hippenmeyer,
BioRxiv (n.d.).
corr_author: '1'
date_created: 2026-06-09T08:08:53Z
date_published: 2026-05-05T00:00:00Z
date_updated: 2026-06-16T08:57:20Z
day: '05'
ddc:
- '570'
department:
- _id: SiHi
- _id: PreCl
- _id: GradSch
doi: 10.64898/2026.05.01.722191
ec_funded: 1
fulldoi: https://doi.org/10.64898/2026.05.01.722191
has_accepted_license: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.64898/2026.05.01.722191
month: '05'
oa: 1
oa_version: Preprint
project:
- _id: 059F6AB4-7A3F-11EA-A408-12923DDC885E
grant_number: F7805
name: Stem Cell Modulation in Neural Development and Regeneration/ P05-Molecular
Mechanisms of Neural Stem Cell Lineage Progression
- _id: 260018B0-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '725780'
name: Principles of Neural Stem Cell Lineage Progression in Cerebral Cortex Development
publication: bioRxiv
publication_status: submitted
status: public
title: Pten orchestrates neurogenic radial glia lineage progression and tunes neocortical
astrocyte production
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: preprint
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2026'
...
---
OA_place: repository
OA_type: green
_id: '21968'
abstract:
- lang: eng
text: Balancing selection, a form of selection that maintains genetic diversity,
is difficult to detect, and the importance of balancing selection for the maintenance
of genetic variation may be larger than often assumed. We model the possibility
that the diversity-promoting effects of balancing selection extend to other loci
that show sign epistasis with a locus under balancing selection. Rather than focusing
on overdominance, as was done in previous efforts, we explore the effects of negative
frequency dependence and show that this has important effects on the conditions
under which the diversity-promoting effect of epistasis can occur in diploids.
Our results show that not only recombination rate but also the dominance of sign
epistasis are key parameters that determine the maintenance of polymorphism beyond
the locus under direct balancing selection. We suggest that the effect we explore
may play a significant role, especially when balancing selection acts on major
effect loci.
acknowledgement: This work was funded by grants from the Swedish Research Council
(2023-03730 to G.A.) and the DOC fellowship from the Austrian Academy of Science
(26293 to K.K.).
article_processing_charge: No
author:
- first_name: Kseniia
full_name: Khudiakova, Kseniia
id: 4E6DC800-AE37-11E9-AC72-31CAE5697425
last_name: Khudiakova
orcid: 0000-0002-6246-1465
- first_name: Nicholas H
full_name: Barton, Nicholas H
id: 4880FE40-F248-11E8-B48F-1D18A9856A87
last_name: Barton
orcid: 0000-0002-8548-5240
- first_name: Goran
full_name: Arnqvist, Goran
last_name: Arnqvist
citation:
ama: Khudiakova K, Barton NH, Arnqvist G. Sign epistasis extends the effects of
balancing selection on genetic diversity. bioRxiv. doi:10.1101/2025.04.09.647826
apa: Khudiakova, K., Barton, N. H., & Arnqvist, G. (n.d.). Sign epistasis extends
the effects of balancing selection on genetic diversity. bioRxiv. https://doi.org/10.1101/2025.04.09.647826
chicago: Khudiakova, Kseniia, Nicholas H Barton, and Goran Arnqvist. “Sign Epistasis
Extends the Effects of Balancing Selection on Genetic Diversity.” BioRxiv,
n.d. https://doi.org/10.1101/2025.04.09.647826.
ieee: K. Khudiakova, N. H. Barton, and G. Arnqvist, “Sign epistasis extends the
effects of balancing selection on genetic diversity,” bioRxiv. .
ista: Khudiakova K, Barton NH, Arnqvist G. Sign epistasis extends the effects of
balancing selection on genetic diversity. bioRxiv, 10.1101/2025.04.09.647826.
mla: Khudiakova, Kseniia, et al. “Sign Epistasis Extends the Effects of Balancing
Selection on Genetic Diversity.” BioRxiv, doi:10.1101/2025.04.09.647826.
short: K. Khudiakova, N.H. Barton, G. Arnqvist, BioRxiv (n.d.).
corr_author: '1'
date_created: 2026-06-09T12:26:11Z
date_published: 2026-04-23T00:00:00Z
date_updated: 2026-06-12T12:43:34Z
day: '23'
department:
- _id: NiBa
- _id: JaMa
doi: 10.1101/2025.04.09.647826
fulldoi: https://doi.org/10.1101/2025.04.09.647826
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1101/2025.04.09.647826
month: '04'
oa: 1
oa_version: Preprint
project:
- _id: 34d33d68-11ca-11ed-8bc3-ec13763c0ca8
grant_number: '26293'
name: The impact of deleterious mutations on small populations
publication: bioRxiv
publication_status: draft
related_material:
record:
- id: '21918'
relation: dissertation_contains
status: public
status: public
title: Sign epistasis extends the effects of balancing selection on genetic diversity
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: preprint
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2026'
...
---
_id: '21971'
abstract:
- lang: eng
text: "A Rust library for analyzing dendritic structures using quadric matrices.
This project provides efficient tools for representing dendritic trees, computing
quadric error metrics, and visualizing eigenvalue distributions on hexagonal plots.\r\n\r\nThis
library implements quadric-based geometric analysis of dendritic structures, commonly
found in neuroscience applications. Key features include:\r\n\r\nTree data structures:
Hierarchical vertex and edge representations for dendritic trees\r\nQuadric matrices:
Computation of quadric error metrics for edges and vertices\r\nVisualisation:
Hexagonal plot generation using NormPolar transformations\r\nInteractive tools:
Desktop application with plotting capabilities"
author:
- first_name: Yossi
full_name: Bleile, Yossi
id: 920a7385-7995-11ef-9bfd-8c434cd8f3c2
last_name: Bleile
orcid: 0000-0002-4861-9174
- first_name: Emanuele
full_name: Cortinovis, Emanuele
last_name: Cortinovis
citation:
ama: Bokor Bleile Y, Cortinovis E. Quadrix. 2026. doi:10.15479/AT-ISTA-21971
apa: Bokor Bleile, Y., & Cortinovis, E. (2026). Quadrix. Institute of Science
and Technology Austria. https://doi.org/10.15479/AT-ISTA-21971
chicago: Bokor Bleile, Yossi, and Emanuele Cortinovis. “Quadrix.” Institute of Science
and Technology Austria, 2026. https://doi.org/10.15479/AT-ISTA-21971.
ieee: Y. Bokor Bleile and E. Cortinovis, “Quadrix.” Institute of Science and Technology
Austria, 2026.
ista: Bokor Bleile Y, Cortinovis E. 2026. Quadrix, Institute of Science and Technology
Austria, 10.15479/AT-ISTA-21971.
mla: Bokor Bleile, Yossi, and Emanuele Cortinovis. Quadrix. Institute of
Science and Technology Austria, 2026, doi:10.15479/AT-ISTA-21971.
short: Y. Bokor Bleile, E. Cortinovis, (2026).
corr_author: '1'
date_created: 2026-06-09T19:19:13Z
date_published: 2026-06-15T00:00:00Z
date_updated: 2026-06-15T23:00:03Z
day: '15'
department:
- _id: HeEd
doi: 10.15479/AT-ISTA-21971
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fulldoi: https://doi.org/10.15479/AT-ISTA-21971
has_accepted_license: '1'
keyword:
- quadratics
- mathematics
- dendrites
- geometry
- topology
license: https://opensource.org/licenses/MIT
month: '06'
oa: 1
project:
- _id: 9106a876-16d5-11f0-9cad-bbf11c9952f9
grant_number: ESP 9584724
name: Quantitative Unbiased Shape Analysis with Geometry & Topology
publisher: Institute of Science and Technology Austria
status: public
title: Quadrix
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legal_code_url: https://opensource.org/licenses/MIT
name: The MIT License
short: MIT
type: software
user_id: 68b8ca59-c5b3-11ee-8790-cd641c68093d
year: '2026'
...
---
OA_place: publisher
OA_type: hybrid
PlanS_conform: '1'
_id: '20328'
abstract:
- lang: eng
text: We consider the standard overlap (math formular) of any bi-orthogonal family
of left and right eigenvectors of a large random matrix X with centred i.i.d.
entries and we prove that it decays as an inverse second power of the distance
between the corresponding eigenvalues. This extends similar results for the complex
Gaussian ensemble from Bourgade and Dubach [15], as well as Benaych-Georges and
Zeitouni [13], to any i.i.d. matrix ensemble in both symmetry classes. As a main
tool, we prove a two-resolvent local law for the Hermitisation of X uniformly
in the spectrum with optimal decay rate and optimal dependence on the density
near the spectral edge.
acknowledgement: Partially supported by ERC Advanced Grant “RMTBeyond” No. 101020331.
Partially supported by National Key R&D Program of China No. 2024YFA1013503.
article_number: '111180'
article_processing_charge: Yes (via OA deal)
article_type: original
arxiv: 1
author:
- first_name: Giorgio
full_name: Cipolloni, Giorgio
id: 42198EFA-F248-11E8-B48F-1D18A9856A87
last_name: Cipolloni
orcid: 0000-0002-4901-7992
- first_name: László
full_name: Erdös, László
id: 4DBD5372-F248-11E8-B48F-1D18A9856A87
last_name: Erdös
orcid: 0000-0001-5366-9603
- first_name: Yuanyuan
full_name: Xu, Yuanyuan
id: 7902bdb1-a2a4-11eb-a164-c9216f71aea3
last_name: Xu
orcid: 0000-0003-1559-1205
citation:
ama: Cipolloni G, Erdös L, Xu Y. Optimal decay of eigenvector overlap for non-Hermitian
random matrices. Journal of Functional Analysis. 2026;290(1). doi:10.1016/j.jfa.2025.111180
apa: Cipolloni, G., Erdös, L., & Xu, Y. (2026). Optimal decay of eigenvector
overlap for non-Hermitian random matrices. Journal of Functional Analysis.
Elsevier. https://doi.org/10.1016/j.jfa.2025.111180
chicago: Cipolloni, Giorgio, László Erdös, and Yuanyuan Xu. “Optimal Decay of Eigenvector
Overlap for Non-Hermitian Random Matrices.” Journal of Functional Analysis.
Elsevier, 2026. https://doi.org/10.1016/j.jfa.2025.111180.
ieee: G. Cipolloni, L. Erdös, and Y. Xu, “Optimal decay of eigenvector overlap for
non-Hermitian random matrices,” Journal of Functional Analysis, vol. 290,
no. 1. Elsevier, 2026.
ista: Cipolloni G, Erdös L, Xu Y. 2026. Optimal decay of eigenvector overlap for
non-Hermitian random matrices. Journal of Functional Analysis. 290(1), 111180.
mla: Cipolloni, Giorgio, et al. “Optimal Decay of Eigenvector Overlap for Non-Hermitian
Random Matrices.” Journal of Functional Analysis, vol. 290, no. 1, 111180,
Elsevier, 2026, doi:10.1016/j.jfa.2025.111180.
short: G. Cipolloni, L. Erdös, Y. Xu, Journal of Functional Analysis 290 (2026).
corr_author: '1'
date_created: 2025-09-10T05:46:07Z
date_published: 2026-01-01T00:00:00Z
date_updated: 2026-06-03T13:12:14Z
day: '01'
ddc:
- '510'
department:
- _id: LaEr
doi: 10.1016/j.jfa.2025.111180
ec_funded: 1
external_id:
arxiv:
- '2411.16572'
isi:
- '001583178200001'
oaworkid:
- w4413883397
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fulldoi: https://doi.org/10.1016/j.jfa.2025.111180
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isi: 1
issue: '1'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
oaworkid: 1
project:
- _id: 62796744-2b32-11ec-9570-940b20777f1d
call_identifier: H2020
grant_number: '101020331'
name: Random matrices beyond Wigner-Dyson-Mehta
publication: Journal of Functional Analysis
publication_identifier:
issn:
- 0022-1236
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Optimal decay of eigenvector overlap for non-Hermitian random matrices
tmp:
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short: CC BY (4.0)
type: journal_article
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volume: 290
year: '2026'
...
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_id: '20422'
abstract:
- lang: eng
text: "We show that if n is odd and p>=Clog n/n, then with high probability Hamilton
cycles in G(n,p) span its cycle space. More generally, we show this holds for
a class of graphs satisfying certain natural pseudorandom properties. The proof
is based on a novel idea of parity-switchers, which can be thought of as analogues
of absorbers in the context of cycle spaces. As another application of our method,
we show that Hamilton cycles in a near-Dirac graph G, that is, a graph G with
odd n vertices and minimum degree n/2+C for sufficiently large constant C, span
its cycle space.\r\n"
acknowledgement: This project has received funding from the European Union's Horizon
2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement
No 101034413. Image 1 Part of this research was conducted while the author was at
Department of Computer Science, ETH Zürich, Switzerland. This author was supported
by grant no. CRSII5 173721 of the Swiss National Science Foundation.
article_processing_charge: Yes (via OA deal)
article_type: original
arxiv: 1
author:
- first_name: Micha
full_name: Christoph, Micha
last_name: Christoph
- first_name: Rajko
full_name: Nenadov, Rajko
last_name: Nenadov
- first_name: Kalina H
full_name: Petrova, Kalina H
id: 554ff4e4-f325-11ee-b0c4-a10dbd523381
last_name: Petrova
citation:
ama: Christoph M, Nenadov R, Petrova KH. The Hamilton space of pseudorandom graphs.
Journal of Combinatorial Theory Series B. 2026;176:254-267. doi:10.1016/j.jctb.2025.09.002
apa: Christoph, M., Nenadov, R., & Petrova, K. H. (2026). The Hamilton space
of pseudorandom graphs. Journal of Combinatorial Theory Series B. Elsevier.
https://doi.org/10.1016/j.jctb.2025.09.002
chicago: Christoph, Micha, Rajko Nenadov, and Kalina H Petrova. “The Hamilton Space
of Pseudorandom Graphs.” Journal of Combinatorial Theory Series B. Elsevier,
2026. https://doi.org/10.1016/j.jctb.2025.09.002.
ieee: M. Christoph, R. Nenadov, and K. H. Petrova, “The Hamilton space of pseudorandom
graphs,” Journal of Combinatorial Theory Series B, vol. 176. Elsevier,
pp. 254–267, 2026.
ista: Christoph M, Nenadov R, Petrova KH. 2026. The Hamilton space of pseudorandom
graphs. Journal of Combinatorial Theory Series B. 176, 254–267.
mla: Christoph, Micha, et al. “The Hamilton Space of Pseudorandom Graphs.” Journal
of Combinatorial Theory Series B, vol. 176, Elsevier, 2026, pp. 254–67, doi:10.1016/j.jctb.2025.09.002.
short: M. Christoph, R. Nenadov, K.H. Petrova, Journal of Combinatorial Theory Series
B 176 (2026) 254–267.
corr_author: '1'
date_created: 2025-10-05T22:01:34Z
date_published: 2026-01-01T00:00:00Z
date_updated: 2026-01-05T13:29:52Z
day: '01'
ddc:
- '510'
department:
- _id: MaKw
doi: 10.1016/j.jctb.2025.09.002
ec_funded: 1
external_id:
arxiv:
- '2402.01447'
isi:
- '001585783400001'
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oa_version: Published Version
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call_identifier: H2020
grant_number: '101034413'
name: 'IST-BRIDGE: International postdoctoral program'
publication: Journal of Combinatorial Theory Series B
publication_identifier:
eissn:
- 1096-0902
issn:
- 0095-8956
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
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title: The Hamilton space of pseudorandom graphs
tmp:
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type: journal_article
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...
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OA_place: publisher
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_id: '20456'
abstract:
- lang: eng
text: Given a locally finite set A⊆Rd and a coloring χ:A→{0,1,…,s}, we introduce
the chromatic Delaunay mosaic of χ, which is a Delaunay mosaic in Rs+d that represents
how points of different colors mingle. Our main results are bounds on the size
of the chromatic Delaunay mosaic, in which we assume that d and s are constants.
For example, if A is finite with n=#A, and the coloring is random, then the chromatic
Delaunay mosaic has O(n⌈d/2⌉) cells in expectation. In contrast, for Delone sets
and Poisson point processes in Rd, the expected number of cells within a closed
ball is only a constant times the number of points in this ball. Furthermore,
in R2 all colorings of a dense set of n points have chromatic Delaunay mosaics
of size O(n). This encourages the use of chromatic Delaunay mosaics in applications.
acknowledgement: The fourth author thanks Boris Aronov for insightful discussions
on the size of the overlay of Voronoi tessellations. Open access funding provided
by Institute of Science and Technology (IST Austria). This project has received
funding from the European Research Council (ERC) under the European Union’s Horizon
2020 research and innovation programme, grant no. 788183, from the Wittgenstein
Prize, Austrian Science Fund (FWF), grant no. Z 342-N31, and from the DFG Collaborative
Research Center TRR 109, ‘Discretization in Geometry and Dynamics’, Austrian Science
Fund (FWF), grant no. I 02979-N35.
article_processing_charge: Yes (via OA deal)
article_type: original
arxiv: 1
author:
- first_name: Ranita
full_name: Biswas, Ranita
id: 3C2B033E-F248-11E8-B48F-1D18A9856A87
last_name: Biswas
orcid: 0000-0002-5372-7890
- first_name: Sebastiano
full_name: Cultrera di Montesano, Sebastiano
id: 34D2A09C-F248-11E8-B48F-1D18A9856A87
last_name: Cultrera di Montesano
orcid: 0000-0001-6249-0832
- first_name: Ondrej
full_name: Draganov, Ondrej
id: 2B23F01E-F248-11E8-B48F-1D18A9856A87
last_name: Draganov
orcid: 0000-0003-0464-3823
- first_name: Herbert
full_name: Edelsbrunner, Herbert
id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
last_name: Edelsbrunner
orcid: 0000-0002-9823-6833
- first_name: Morteza
full_name: Saghafian, Morteza
id: f86f7148-b140-11ec-9577-95435b8df824
last_name: Saghafian
citation:
ama: Biswas R, Cultrera di Montesano S, Draganov O, Edelsbrunner H, Saghafian M.
On the size of chromatic Delaunay mosaics. Discrete and Computational Geometry.
2026;75:24-47. doi:10.1007/s00454-025-00778-7
apa: Biswas, R., Cultrera di Montesano, S., Draganov, O., Edelsbrunner, H., &
Saghafian, M. (2026). On the size of chromatic Delaunay mosaics. Discrete and
Computational Geometry. Springer Nature. https://doi.org/10.1007/s00454-025-00778-7
chicago: Biswas, Ranita, Sebastiano Cultrera di Montesano, Ondrej Draganov, Herbert
Edelsbrunner, and Morteza Saghafian. “On the Size of Chromatic Delaunay Mosaics.”
Discrete and Computational Geometry. Springer Nature, 2026. https://doi.org/10.1007/s00454-025-00778-7.
ieee: R. Biswas, S. Cultrera di Montesano, O. Draganov, H. Edelsbrunner, and M.
Saghafian, “On the size of chromatic Delaunay mosaics,” Discrete and Computational
Geometry, vol. 75. Springer Nature, pp. 24–47, 2026.
ista: Biswas R, Cultrera di Montesano S, Draganov O, Edelsbrunner H, Saghafian M.
2026. On the size of chromatic Delaunay mosaics. Discrete and Computational Geometry.
75, 24–47.
mla: Biswas, Ranita, et al. “On the Size of Chromatic Delaunay Mosaics.” Discrete
and Computational Geometry, vol. 75, Springer Nature, 2026, pp. 24–47, doi:10.1007/s00454-025-00778-7.
short: R. Biswas, S. Cultrera di Montesano, O. Draganov, H. Edelsbrunner, M. Saghafian,
Discrete and Computational Geometry 75 (2026) 24–47.
corr_author: '1'
date_created: 2025-10-12T22:01:26Z
date_published: 2026-01-01T00:00:00Z
date_updated: 2026-01-05T13:21:56Z
day: '01'
ddc:
- '510'
department:
- _id: HeEd
doi: 10.1007/s00454-025-00778-7
ec_funded: 1
external_id:
arxiv:
- '2212.03121'
isi:
- '001584166900001'
file:
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checksum: 0addb5c1b78142f9fb453bfa04695400
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isi: 1
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
page: 24-47
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
- _id: 2561EBF4-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: I02979-N35
name: Persistence and stability of geometric complexes
publication: Discrete and Computational Geometry
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eissn:
- 1432-0444
issn:
- 0179-5376
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
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title: On the size of chromatic Delaunay mosaics
tmp:
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legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
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type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
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year: '2026'
...
---
OA_place: publisher
OA_type: hybrid
PlanS_conform: '1'
_id: '20482'
abstract:
- lang: eng
text: 'In his study of graph codes, Alon introduced the concept of the odd-Ramsey
number of a family of graphs H in Kn, defined as the minimum number of colours
needed to colour the edges of K so that every copy of a graph H E H intersects
some colour class in an odd number of edges. In this paper, we focus on complete
bipartite graphs. First, we completely resolve the problem when H is the family
of all spanning complete bipartite graphs on n vertices. We then focus on its
subfamilies, that is, {Kt,n-t : t E T} for a fixed set of integers T c [[n/2]].
We prove that the odd-Ramsey problem is equivalent to determining the maximum
dimension of a linear binary code avoiding codewords of given weights, and leverage
known results from coding theory to deduce asymptotically tight bounds in our
setting. We conclude with bounds for the odd-Ramsey numbers of fixed (that is,
non-spanning) complete bipartite subgraphs.'
acknowledgement: "The authors would like to thank Gilles Zémor for a helpful clarification
on [3], Deepak Bal and Patrick Bennett for bringing [25] to their attention, and
both referees for several helpful comments.\r\nS.B.: Most of this research was conducted
while the author was at the School of Mathematics, University of Birmingham, Birmingham,
United Kingdom. The research leading to these results was supported by EPSRC, United
Kingdom, grant no. EP/V048287/1 and by ERC Advanced Grants “GeoScape”, no. 882971
and “ERMiD”, no. 101054936. There are no additional data beyond that contained within
the main manuscript.\r\nS.D.: Research supported by Taiwan NSTC grants 111-2115-M-002-009-MY2
and 113-2628-M-002-008-MY4.\r\nK.P.: This project has received funding from the
European Union’s Horizon 2020 research and innovation programme under the Marie
Skłodowska-Curie grant agreement No 101034413. Parts of this research was conducted
while K.P. was at the Department of Computer Science, ETH Zürich, Switzerland, supported
by Swiss National Science Foundation, Switzerland , grant no. CRSII5 173721."
article_number: '104235'
article_processing_charge: Yes (via OA deal)
article_type: original
arxiv: 1
author:
- first_name: Simona
full_name: Boyadzhiyska, Simona
last_name: Boyadzhiyska
- first_name: Shagnik
full_name: Das, Shagnik
last_name: Das
- first_name: Thomas
full_name: Lesgourgues, Thomas
last_name: Lesgourgues
- first_name: Kalina H
full_name: Petrova, Kalina H
id: 554ff4e4-f325-11ee-b0c4-a10dbd523381
last_name: Petrova
citation:
ama: Boyadzhiyska S, Das S, Lesgourgues T, Petrova KH. Odd-Ramsey numbers of complete
bipartite graphs. European Journal of Combinatorics. 2026;131. doi:10.1016/j.ejc.2025.104235
apa: Boyadzhiyska, S., Das, S., Lesgourgues, T., & Petrova, K. H. (2026). Odd-Ramsey
numbers of complete bipartite graphs. European Journal of Combinatorics.
Elsevier. https://doi.org/10.1016/j.ejc.2025.104235
chicago: Boyadzhiyska, Simona, Shagnik Das, Thomas Lesgourgues, and Kalina H Petrova.
“Odd-Ramsey Numbers of Complete Bipartite Graphs.” European Journal of Combinatorics.
Elsevier, 2026. https://doi.org/10.1016/j.ejc.2025.104235.
ieee: S. Boyadzhiyska, S. Das, T. Lesgourgues, and K. H. Petrova, “Odd-Ramsey numbers
of complete bipartite graphs,” European Journal of Combinatorics, vol.
131. Elsevier, 2026.
ista: Boyadzhiyska S, Das S, Lesgourgues T, Petrova KH. 2026. Odd-Ramsey numbers
of complete bipartite graphs. European Journal of Combinatorics. 131, 104235.
mla: Boyadzhiyska, Simona, et al. “Odd-Ramsey Numbers of Complete Bipartite Graphs.”
European Journal of Combinatorics, vol. 131, 104235, Elsevier, 2026, doi:10.1016/j.ejc.2025.104235.
short: S. Boyadzhiyska, S. Das, T. Lesgourgues, K.H. Petrova, European Journal of
Combinatorics 131 (2026).
corr_author: '1'
date_created: 2025-10-16T13:14:34Z
date_published: 2026-01-01T00:00:00Z
date_updated: 2026-01-05T13:34:48Z
day: '01'
ddc:
- '500'
department:
- _id: MaKw
doi: 10.1016/j.ejc.2025.104235
ec_funded: 1
external_id:
arxiv:
- '2410.05887'
isi:
- '001573380700001'
file:
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checksum: 52883daa217398396cbf9b8ad9ddae92
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creator: dernst
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isi: 1
language:
- iso: eng
month: '01'
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: European Journal of Combinatorics
publication_identifier:
issn:
- 0195-6698
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Odd-Ramsey numbers of complete bipartite graphs
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
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short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 131
year: '2026'
...
---
OA_place: repository
OA_type: green
_id: '22103'
abstract:
- lang: eng
text: "Modern AI systems increasingly rely on opaque, highly complex models whose
inner workings remain inaccessible even to experts. This opacity creates challenges
for trust, accountability, and compliance with\r\nemerging regulatory expectations
such as the “right to an explanation”. While traditional explainability methods—feature
attributions, counterfactuals, surrogate models—and interpretable model classes
provide valuable insights for engineers, they often fall short of delivering the
contextual, conversational explanations that\r\nreal users expect. Large Language
Models (LLMs) offer a promising new avenue for explanation due to their\r\nability
to engage interactively, adapt to user needs, and translate technical outputs
into more accessible reasoning. However, their tendencies toward hallucination,
conflict avoidance, and oversimplification introduce\r\nserious risks when used
as explanatory agents. This paper analyzes these opportunities and limitations,
examines verification strategies for ensuring explanation fidelity, and situates
LLM-generated explanations within\r\nbroader concerns about public trust. The
paper concludes by outlining best practices and future research directions for
building robust, verifiable, and human-aligned explanation systems."
acknowledgement: "This work has been supported by the European Research Council under
Grant No.: ERC-2020-AdG\r\n101020093. LLM–based tools have been used as\r\nwriting
assistance to help improve presentation.\r\n"
article_processing_charge: No
author:
- first_name: Filip
full_name: Cano Cordoba, Filip
id: 708cad98-e86a-11ef-8098-bdae2d7c6af1
last_name: Cano Cordoba
orcid: 0000-0002-0783-904X
citation:
ama: 'Cano Cordoba F. Explaining decisions one conversation at a time: Opportunities
and risks of LLMs as explainability assistants. In: Proceedings of the 18th
International Conference on Agents and Artificial Intelligence. Vol 5. Science
and Technology Publications; 2026:4689-4696. doi:10.5220/0014483200004052'
apa: 'Cano Cordoba, F. (2026). Explaining decisions one conversation at a time:
Opportunities and risks of LLMs as explainability assistants. In Proceedings
of the 18th International Conference on Agents and Artificial Intelligence
(Vol. 5, pp. 4689–4696). Marbella, Spain: Science and Technology Publications.
https://doi.org/10.5220/0014483200004052'
chicago: 'Cano Cordoba, Filip. “Explaining Decisions One Conversation at a Time:
Opportunities and Risks of LLMs as Explainability Assistants.” In Proceedings
of the 18th International Conference on Agents and Artificial Intelligence,
5:4689–96. Science and Technology Publications, 2026. https://doi.org/10.5220/0014483200004052.'
ieee: 'F. Cano Cordoba, “Explaining decisions one conversation at a time: Opportunities
and risks of LLMs as explainability assistants,” in Proceedings of the 18th
International Conference on Agents and Artificial Intelligence, Marbella,
Spain, 2026, vol. 5, pp. 4689–4696.'
ista: 'Cano Cordoba F. 2026. Explaining decisions one conversation at a time: Opportunities
and risks of LLMs as explainability assistants. Proceedings of the 18th International
Conference on Agents and Artificial Intelligence. ICAART: International Conference
on Agents and Artificial Intelligence vol. 5, 4689–4696.'
mla: 'Cano Cordoba, Filip. “Explaining Decisions One Conversation at a Time: Opportunities
and Risks of LLMs as Explainability Assistants.” Proceedings of the 18th International
Conference on Agents and Artificial Intelligence, vol. 5, Science and Technology
Publications, 2026, pp. 4689–96, doi:10.5220/0014483200004052.'
short: F. Cano Cordoba, in:, Proceedings of the 18th International Conference on
Agents and Artificial Intelligence, Science and Technology Publications, 2026,
pp. 4689–4696.
conference:
end_date: 2026-03-08
location: Marbella, Spain
name: 'ICAART: International Conference on Agents and Artificial Intelligence'
start_date: 2026-03-05
corr_author: '1'
das_tickbox: '0'
date_created: 2026-06-21T22:03:00Z
date_published: 2026-04-01T00:00:00Z
date_updated: 2026-06-24T08:37:00Z
day: '01'
department:
- _id: ToHe
doi: 10.5220/0014483200004052
ec_funded: 1
fulldoi: https://doi.org/10.5220/0014483200004052
intvolume: ' 5'
keyword:
- Explainable AI
- Large Language Models
- Trust in AI
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://filipcano.org/files/icaart26llm.pdf
month: '04'
oa: 1
oa_version: Accepted Version
page: 4689-4696
project:
- _id: 62781420-2b32-11ec-9570-8d9b63373d4d
call_identifier: H2020
grant_number: '101020093'
name: Vigilant Algorithmic Monitoring of Software
publication: Proceedings of the 18th International Conference on Agents and Artificial
Intelligence
publication_identifier:
eissn:
- 2184-433X
isbn:
- '9789897587962'
issn:
- 2184-3589
publication_status: published
publisher: Science and Technology Publications
quality_controlled: '1'
researchdata_availability: no
scopus_import: '1'
status: public
supplementarymaterial: no
title: 'Explaining decisions one conversation at a time: Opportunities and risks of
LLMs as explainability assistants'
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 5
year: '2026'
...
---
OA_place: publisher
OA_type: gold
_id: '21437'
abstract:
- lang: eng
text: Altermagnets are a class of collinear magnets that exhibit non-relativistic
spin splitting (NRSS) of electronic bands in the absence of net magnetization.
Their potential to generate large spin polarization without spin-orbit coupling
has created strong interest in probes that access the underlying order parameter
directly. In this Perspective, we show that linear magneto-birefringence (LMB)
provides a natural and broadly applicable route to detecting altermagnetic order.
Building on the correspondence between the momentum-space structure of NRSS and
the ferroic ordering of magnetic multipoles in real space, we demonstrate how
$d$-wave and $g$-wave NRSS textures yield distinct LMB responses. We present a
symmetry-based framework that identifies the optical geometries and field configurations
required to isolate specific multipole components, enabling domain imaging and
providing benchmarks for theoretical models of LMB.
acknowledgement: We thank Nicola Spaldin and Marc Vila for valuable discussions. J.O.
received support from the Quantum Materials (KC2202) program under the U.S. Department
of Energy, Office of Science, Office of Basic Energy Sciences, Materials Sciences
and Engineering Division under Contract No. DE-AC02-05CH11231, and the Gordon and
Betty Moore Foundation's EPiQS Initiative through Grant GBMF4537 to J.O. at UC Berkeley.
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: Veronika
full_name: Sunko, Veronika
id: 23cb1cf6-2c7a-11ef-91a4-f72fc19f20b3
last_name: Sunko
orcid: 0000-0003-2724-3523
- first_name: J.
full_name: Orenstein, J.
last_name: Orenstein
citation:
ama: Sunko V, Orenstein J. Linear magneto-birefringence as a probe of altermagnetism.
npj Quantum Materials. 2026. doi:10.1038/s41535-026-00901-8
apa: Sunko, V., & Orenstein, J. (2026). Linear magneto-birefringence as a probe
of altermagnetism. Npj Quantum Materials. Springer Nature. https://doi.org/10.1038/s41535-026-00901-8
chicago: Sunko, Veronika, and J. Orenstein. “Linear Magneto-Birefringence as a Probe
of Altermagnetism.” Npj Quantum Materials. Springer Nature, 2026. https://doi.org/10.1038/s41535-026-00901-8.
ieee: V. Sunko and J. Orenstein, “Linear magneto-birefringence as a probe of altermagnetism,”
npj Quantum Materials. Springer Nature, 2026.
ista: Sunko V, Orenstein J. 2026. Linear magneto-birefringence as a probe of altermagnetism.
npj Quantum Materials.
mla: Sunko, Veronika, and J. Orenstein. “Linear Magneto-Birefringence as a Probe
of Altermagnetism.” Npj Quantum Materials, Springer Nature, 2026, doi:10.1038/s41535-026-00901-8.
short: V. Sunko, J. Orenstein, Npj Quantum Materials (2026).
corr_author: '1'
date_created: 2026-03-11T10:40:08Z
date_published: 2026-05-30T00:00:00Z
date_updated: 2026-06-24T10:31:05Z
day: '30'
ddc:
- '530'
department:
- _id: VeSu
doi: 10.1038/s41535-026-00901-8
external_id:
arxiv:
- '2511.16421'
fulldoi: https://doi.org/10.1038/s41535-026-00901-8
has_accepted_license: '1'
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc-nd/4.0/
main_file_link:
- open_access: '1'
url: https://doi.org/10.1038/s41535-026-00901-8
month: '05'
oa: 1
oa_version: Published Version
publication: npj Quantum Materials
publication_identifier:
eissn:
- 2397-4648
publication_status: epub_ahead
publisher: Springer Nature
status: public
title: Linear magneto-birefringence as a probe of altermagnetism
tmp:
image: /images/cc_by_nc_nd.png
legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
(CC BY-NC-ND 4.0)
short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2026'
...
---
OA_place: publisher
OA_type: hybrid
PlanS_conform: '1'
_id: '22145'
abstract:
- lang: eng
text: An in-operando electro-intercalation method for the on-chip synthesis of alkali-metal-intercalated
materials and their Raman spectroscopic and transport characterization in ultrahigh
vacuum (UHV) is developed. We apply this method to synthesize fulleride superconductors
via Rb+ intercalation into a C60 film. During the intercalation, we monitor the
stoichiometry via UHV-Raman spectroscopy and probe superconductivity via transport
measurements. An increase of the superconducting transition temperature from 7.0
K to 14.5 K is observed when the stoichiometry is tuned from Rb2.7C60 to Rb3C60.
In our experiment, an ionic Rb+ flux into the host material is induced by an applied
electronic current via a Butler–Volmer-type mechanism. Electro-intercalation captivates
through improved stoichiometric precision, the ability to smoothly vary stoichiometry
via duration of current application, and the absence of a lower limit of the volume
of the host material. It represents a powerful concept for the on-chip synthesis
of intercalated materials, battery research, and beyond.
acknowledgement: 'A.G. and K.P.S. acknowledge the DFG through CRC 1238 (277146847,
A01) and DFG project SE 2575. K.P.S., P.S., and A.G. would like to thank the Center
for Micro- and Nanostructures (ZMNS) for providing the cleanroom facilities. K.P.S.
thanks Daniele Nazari for help with ALD of Al2O3 films. Financial support from FFG
Austria (CrystalGate) is acknowledged. A.G. thanks John Weaver for discussions about
the structure of RbxC60. B.C. acknowledges support from the NOMIS Foundation. First-principles
simulations were supported as part of user project CNMS2025-R-03182 at the Center
for Nanophase Materials Sciences (CNMS), which is a US Department of Energy, Office
of Science User Facility at Oak Ridge National Laboratory. J.J. and J.H. acknowledge
the computational resources provided by the ACCESS (Advanced Cyberinfrastructure
Coordination Ecosystem: Services & Support) program through allocation TG-DMR110037;
the National Energy Research Scientific Computing Center (NERSC), a DOE Office of
Science User Facility supported under Contract No. DE-AC02-05CH11231, through NERSC
award BES-ERCAP0031261; and the Compute and Data Environment for Science (CADES)
Baseline at Oak Ridge National Laboratory, supported by the Office of Science of
the U.S. Department of Energy under Contract No. DE-AC05-00OR22725. The authors
acknowledge TU Wien Bibliothek for financial support through its Open access funding
provided by Technische Universitat Wien.'
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Konstantin P.
full_name: Shchukin, Konstantin P.
last_name: Shchukin
- first_name: Oliver N.
full_name: Gallego Lacey, Oliver N.
last_name: Gallego Lacey
- first_name: Baptiste
full_name: Coquinot, Baptiste
id: f8417bd4-f599-11ee-a482-b927e3ed1e8e
last_name: Coquinot
orcid: 0000-0001-5524-596X
- first_name: Jacek
full_name: Jakowski, Jacek
last_name: Jakowski
- first_name: Jingsong
full_name: Huang, Jingsong
last_name: Huang
- first_name: Patrik
full_name: Staudenmayer, Patrik
last_name: Staudenmayer
- first_name: Yannic
full_name: Falke, Yannic
last_name: Falke
- first_name: Ram Prakash
full_name: Pandeya, Ram Prakash
last_name: Pandeya
- first_name: Alexander
full_name: Grüneis, Alexander
last_name: Grüneis
citation:
ama: Shchukin KP, Gallego Lacey ON, Coquinot B, et al. On-chip tuning of superconductivity
in fullerides via current-driven Rb+ intercalation. ACS Nano. 2026;20(24):17360-17372.
doi:10.1021/acsnano.6c02466
apa: Shchukin, K. P., Gallego Lacey, O. N., Coquinot, B., Jakowski, J., Huang, J.,
Staudenmayer, P., … Grüneis, A. (2026). On-chip tuning of superconductivity in
fullerides via current-driven Rb+ intercalation. ACS Nano. American Chemical
Society. https://doi.org/10.1021/acsnano.6c02466
chicago: Shchukin, Konstantin P., Oliver N. Gallego Lacey, Baptiste Coquinot, Jacek
Jakowski, Jingsong Huang, Patrik Staudenmayer, Yannic Falke, Ram Prakash Pandeya,
and Alexander Grüneis. “On-Chip Tuning of Superconductivity in Fullerides via
Current-Driven Rb+ Intercalation.” ACS Nano. American Chemical Society,
2026. https://doi.org/10.1021/acsnano.6c02466.
ieee: K. P. Shchukin et al., “On-chip tuning of superconductivity in fullerides
via current-driven Rb+ intercalation,” ACS Nano, vol. 20, no. 24. American
Chemical Society, pp. 17360–17372, 2026.
ista: Shchukin KP, Gallego Lacey ON, Coquinot B, Jakowski J, Huang J, Staudenmayer
P, Falke Y, Pandeya RP, Grüneis A. 2026. On-chip tuning of superconductivity in
fullerides via current-driven Rb+ intercalation. ACS Nano. 20(24), 17360–17372.
mla: Shchukin, Konstantin P., et al. “On-Chip Tuning of Superconductivity in Fullerides
via Current-Driven Rb+ Intercalation.” ACS Nano, vol. 20, no. 24, American
Chemical Society, 2026, pp. 17360–72, doi:10.1021/acsnano.6c02466.
short: K.P. Shchukin, O.N. Gallego Lacey, B. Coquinot, J. Jakowski, J. Huang, P.
Staudenmayer, Y. Falke, R.P. Pandeya, A. Grüneis, ACS Nano 20 (2026) 17360–17372.
das_tickbox: '0'
date_created: 2026-06-28T22:01:34Z
date_published: 2026-06-23T00:00:00Z
date_updated: 2026-06-29T09:00:33Z
day: '23'
ddc:
- '530'
department:
- _id: MiLe
doi: 10.1021/acsnano.6c02466
external_id:
pmid:
- '42260723'
file:
- access_level: open_access
checksum: 01ec8ee6fab7bf563df7af13f6b43045
content_type: application/pdf
creator: dernst
date_created: 2026-06-29T08:58:12Z
date_updated: 2026-06-29T08:58:12Z
file_id: '22150'
file_name: 2026_ACSNano_Shchukin.pdf
file_size: 6290296
relation: main_file
success: 1
file_date_updated: 2026-06-29T08:58:12Z
fulldoi: https://doi.org/10.1021/acsnano.6c02466
has_accepted_license: '1'
intvolume: ' 20'
issue: '24'
keyword:
- fulleride
- intercalation
- alkali metal
- superconductivity
- Raman
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
page: 17360-17372
pmid: 1
publication: ACS Nano
publication_identifier:
eissn:
- 1936-086X
issn:
- 1936-0851
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
researchdata_availability: no
scopus_import: '1'
status: public
supplementarymaterial: yes
title: On-chip tuning of superconductivity in fullerides via current-driven Rb+ intercalation
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: 20
year: '2026'
...
---
OA_type: closed access
_id: '22144'
abstract:
- lang: eng
text: Most cells polarize and migrate in response to electrical fields. In this
issue of Cell, Belliveau et al. identify TMEM154/Galvanin, a receptor that serves
as a cellular antenna to sense electrical gradients and guide migration toward
the cathode.
article_processing_charge: No
article_type: comment
author:
- first_name: Michael
full_name: Riedl, Michael
id: 3BE60946-F248-11E8-B48F-1D18A9856A87
last_name: Riedl
orcid: 0000-0003-4844-6311
- first_name: Michael K
full_name: Sixt, Michael K
id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87
last_name: Sixt
orcid: 0000-0002-6620-9179
citation:
ama: Riedl M, Sixt MK. A new sense for electrical fields. Cell. 2026;189(13):3845-3846.
doi:10.1016/j.cell.2026.05.038
apa: Riedl, M., & Sixt, M. K. (2026). A new sense for electrical fields. Cell.
Elsevier. https://doi.org/10.1016/j.cell.2026.05.038
chicago: Riedl, Michael, and Michael K Sixt. “A New Sense for Electrical Fields.”
Cell. Elsevier, 2026. https://doi.org/10.1016/j.cell.2026.05.038.
ieee: M. Riedl and M. K. Sixt, “A new sense for electrical fields,” Cell,
vol. 189, no. 13. Elsevier, pp. 3845–3846, 2026.
ista: Riedl M, Sixt MK. 2026. A new sense for electrical fields. Cell. 189(13),
3845–3846.
mla: Riedl, Michael, and Michael K. Sixt. “A New Sense for Electrical Fields.” Cell,
vol. 189, no. 13, Elsevier, 2026, pp. 3845–46, doi:10.1016/j.cell.2026.05.038.
short: M. Riedl, M.K. Sixt, Cell 189 (2026) 3845–3846.
corr_author: '1'
das_tickbox: '0'
date_created: 2026-06-28T22:01:34Z
date_published: 2026-06-25T00:00:00Z
date_updated: 2026-06-29T09:04:49Z
day: '25'
department:
- _id: MiSi
doi: 10.1016/j.cell.2026.05.038
fulldoi: https://doi.org/10.1016/j.cell.2026.05.038
intvolume: ' 189'
issue: '13'
language:
- iso: eng
month: '06'
oa_version: None
page: 3845-3846
publication: Cell
publication_identifier:
eissn:
- 1097-4172
issn:
- 0092-8674
publication_status: published
publisher: Elsevier
quality_controlled: '1'
researchdata_availability: no
scopus_import: '1'
status: public
supplementarymaterial: no
title: A new sense for electrical fields
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 189
year: '2026'
...
---
OA_place: publisher
OA_type: hybrid
PlanS_conform: '1'
_id: '22147'
abstract:
- lang: eng
text: "Let 1 ≤ k ≤ n and M be a random n × n matrix with independent uniformly random
{±1}-entries. We\r\nshow that there exists an absolute constant c > 0 such that\r\nP[rank(M)
≤ n − k] ≤ exp(−cnk).\r\nThis confirms a well-known prediction in the area, extending
a result of Rudelson (who previously\r\nproved this same result under the restriction
k ≤ √n, via different methods)."
acknowledgement: "Z.H. was supported by SNSF grant 200021-228014. M.K. was supported
by ERC Starting Grant “RANDSTRUCT” No. 101076777. L.S. was supported by the Deutsche
Forschungsgemeinschaft (DFG, German\r\nResearch Foundation)—CRC 1720–539309657.
This research was conducted during the period M.S. served\r\nas a Clay Research
Fellow. This work began when the authors were visiting Mathematisches Forschungsinstitut
Oberwolfach, which\r\nprovided ideal working conditions. M.S. thanks Vishesh Jain
for initial discussions regarding the problem.\r\nWe also thank the anonymous referee
for helpful comments."
article_number: rnag126
article_processing_charge: Yes (via OA deal)
article_type: original
arxiv: 1
author:
- first_name: Zach
full_name: Hunter, Zach
last_name: Hunter
- first_name: Matthew Alan
full_name: Kwan, Matthew Alan
id: 5fca0887-a1db-11eb-95d1-ca9d5e0453b3
last_name: Kwan
orcid: 0000-0002-4003-7567
- first_name: Lisa
full_name: Sauermann, Lisa
last_name: Sauermann
- first_name: Mehtaab
full_name: Sawhney, Mehtaab
last_name: Sawhney
citation:
ama: Hunter Z, Kwan MA, Sauermann L, Sawhney M. On random matrices with large corank.
International Mathematics Research Notices. 2026;2026(12). doi:10.1093/imrn/rnag126
apa: Hunter, Z., Kwan, M. A., Sauermann, L., & Sawhney, M. (2026). On random
matrices with large corank. International Mathematics Research Notices.
Oxford University Press. https://doi.org/10.1093/imrn/rnag126
chicago: Hunter, Zach, Matthew Alan Kwan, Lisa Sauermann, and Mehtaab Sawhney. “On
Random Matrices with Large Corank.” International Mathematics Research Notices.
Oxford University Press, 2026. https://doi.org/10.1093/imrn/rnag126.
ieee: Z. Hunter, M. A. Kwan, L. Sauermann, and M. Sawhney, “On random matrices with
large corank,” International Mathematics Research Notices, vol. 2026, no.
12. Oxford University Press, 2026.
ista: Hunter Z, Kwan MA, Sauermann L, Sawhney M. 2026. On random matrices with large
corank. International Mathematics Research Notices. 2026(12), rnag126.
mla: Hunter, Zach, et al. “On Random Matrices with Large Corank.” International
Mathematics Research Notices, vol. 2026, no. 12, rnag126, Oxford University
Press, 2026, doi:10.1093/imrn/rnag126.
short: Z. Hunter, M.A. Kwan, L. Sauermann, M. Sawhney, International Mathematics
Research Notices 2026 (2026).
corr_author: '1'
das_tickbox: '0'
date_created: 2026-06-28T22:01:35Z
date_published: 2026-06-01T00:00:00Z
date_updated: 2026-06-29T09:19:14Z
day: '01'
ddc:
- '500'
department:
- _id: MaKw
doi: 10.1093/imrn/rnag126
external_id:
arxiv:
- '2510.12933'
file:
- access_level: open_access
checksum: 396b47d0532d7ea509f8cd30f11392a8
content_type: application/pdf
creator: dernst
date_created: 2026-06-29T09:15:15Z
date_updated: 2026-06-29T09:15:15Z
file_id: '22151'
file_name: 2026_IMRN_Hunter.pdf
file_size: 524993
relation: main_file
success: 1
file_date_updated: 2026-06-29T09:15:15Z
fulldoi: https://doi.org/10.1093/imrn/rnag126
has_accepted_license: '1'
intvolume: ' 2026'
issue: '12'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
project:
- _id: bd95085b-d553-11ed-ba76-e55d3349be45
grant_number: '101076777'
name: Randomness and structure in combinatorics
publication: International Mathematics Research Notices
publication_identifier:
eissn:
- 1687-0247
issn:
- 1073-7928
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
researchdata_availability: no
scopus_import: '1'
status: public
supplementarymaterial: no
title: On random matrices with large corank
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: 2026
year: '2026'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
PlanS_conform: '1'
_id: '22229'
abstract:
- lang: eng
text: Hippocampal CA3 pyramidal neurons (PNs) form the largest autoassociative network
in the mammalian brain. Whether CA3–CA3 recurrent connectivity is genetically
preconfigured or environmentally shaped during ongoing memory storage is currently
unknown. To address this question, we performed multicellular patch-clamp-based
circuit mapping of up to eight CA3 PNs in the mouse hippocampus at multiple postnatal
time points (P7–8, P18–25, and P45–50). Here, we show that the hippocampal CA3
network undergoes a developmental transformation from local, dense, and random
connectivity to a distributed, sparse, and structured configuration. Thus, sparse
and structured connectivity may emerge via experience-dependent mechanisms. In
parallel, the strength of single synapses is downregulated; single synaptic events
are sufficient to trigger postsynaptic spiking early in development, whereas spatial
summation of several inputs is required at later time points. Biologically inspired
models of memory storage by Hebbian synaptic plasticity and retrieval via pattern
completion suggest that developmental changes improve specific aspects of memory
storage and retrieval. Our results imply a developmental transformation of the
neuronal code and the memory functions in the hippocampal CA3 network.
acknowledged_ssus:
- _id: PreCl
- _id: Bio
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acknowledgement: 'We thank Jose Guzman, Simon Hippenmeyer, and Tim Vogels for critically
reading the manuscript, Jozsef Csicsvari for useful discussions, Florian Marr for
technical assistance, and Eleftheria Kralli-Beller for manuscript editing. This
research was supported by the Scientific Services Units (SSUs) of ISTA: the preclinical
facility (PCF) provided housing and breeding of the animals, the imaging and optics
facility (IOF) offered technical training and state of the art equipment, the Miba
machine shop contributed to the construction and maintenance of multicellular recording
setups, and the scientific computing unit helped with the large-scale simulations.
The project received funding from the European Union’s Horizon 2020 research and
innovation programme (ERC Advanced Grants No 692692 GIANTSYN and 101199096 CA3-SYNGRAM
to P.J.; Marie Skłodowska-Curie Grant 754411 to V.V.B.; Marie Skłodowska-Curie Grant
101026635 to J.F.W.), the Fond zur Förderung der Wissenschaftlichen Forschung (P
36232-B, PAT4178023, and 10.55776/CoE16 to P.J.), and the Nomis Foundation (fellowship
to A.N.-O.). V.V.B. received funding from a CONACyT fellowship (289638).'
article_number: '5540'
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Nature. https://doi.org/10.1038/s41467-026-71914-x
chicago: Vargas Barroso, Victor M, Jake Watson, Andrea C Navas Olivé, Alois Schlögl,
and Peter M Jonas. “Developmental Emergence of Sparse and Structured Synaptic
Connectivity in the Hippocampal CA3 Memory Circuit.” Nature Communications.
Springer Nature, 2026. https://doi.org/10.1038/s41467-026-71914-x.
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in the hippocampal CA3 memory circuit,” Nature Communications, vol. 17.
Springer Nature, 2026.
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memory circuit. Nature Communications. 17, 5540.
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short: V.M. Vargas Barroso, J. Watson, A.C. Navas Olivé, A. Schlögl, P.M. Jonas,
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Glacier using ensemble-based Lagrangian modelling. In EGU General Assembly
2026. Vienna, Austria & Virtual: European Geosciences Union. https://doi.org/10.5194/egusphere-egu26-19367'
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Jouvet, and Francesca Pellicciotti. “Constraining Debris Input to Oberaletsch
Glacier Using Ensemble-Based Lagrangian Modelling.” In EGU General Assembly
2026. European Geosciences Union, 2026. https://doi.org/10.5194/egusphere-egu26-19367.
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P, Fontrodona-Bach A, Jouvet G, Pellicciotti F. 2026. Constraining debris input
to Oberaletsch Glacier using ensemble-based Lagrangian modelling. EGU General
Assembly 2026. EGU General Assembly, EGU26-19367.
mla: Muñoz Hermosilla, José M., et al. “Constraining Debris Input to Oberaletsch
Glacier Using Ensemble-Based Lagrangian Modelling.” EGU General Assembly 2026,
EGU26-19367, European Geosciences Union, 2026, doi:10.5194/egusphere-egu26-19367.
short: J.M. Muñoz Hermosilla, E. Miles, M. McCarthy, J.V. Melo Velasco, F. Hardmeier,
P. GANTAYAT, A. Fontrodona-Bach, G. Jouvet, F. Pellicciotti, in:, EGU General
Assembly 2026, European Geosciences Union, 2026.
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text: We revisit the computation of 3D generalized winding numbers, a useful measure
for inside-outside classification on triangle meshes with gaps, self-intersections,
and open boundaries. At the core of our new method is an analytical reduction
of the surface integral that defines the winding number, resulting in a single
ray-mesh intersection test and an elementary sum over boundary edges per evaluation.
This construction is orders of magnitude more efficient than the state of the
art in practice, which we show in an extensive performance benchmark. Conveniently,
the method also reduces to the best-available asymptotic complexity in the worst
case, and it introduces no approximations apart from floating-point errors. Our
algorithm is conceptually simple to understand, straightforward to implement and
debug, and it works reliably even on extremely noisy and corrupt input geometry.
acknowledgement: "We thank Sadashige Ishida and Ryusuke Sugimoto for their insightful
discussions and proofreading and other members of the ISTA\r\nVisual Computing Group
for their general feedback. This project was\r\nfunded in part by the European Research
Council (ERC Consolidator\r\nGrant 101045083 CoDiNA)."
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Machinery. https://doi.org/10.1145/3811339
chicago: Xie, Peiyuan, Christian Hafner, and Chris Wojtan. “Fast and Exact Winding
Numbers for Triangle Meshes.” ACM Transactions on Graphics. Association
for Computing Machinery, 2026. https://doi.org/10.1145/3811339.
ieee: P. Xie, C. Hafner, and C. Wojtan, “Fast and exact winding numbers for triangle
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mla: Xie, Peiyuan, et al. “Fast and Exact Winding Numbers for Triangle Meshes.”
ACM Transactions on Graphics, vol. 45, no. 4, 41, Association for Computing
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name: Computational Discovery of Numerical Algorithms for Animation and Simulation
of Natural Phenomena
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eissn:
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issn:
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