---
_id: '15099'
abstract:
- lang: eng
text: Speciation is a key evolutionary process that is not yet fully understood.
Combining population genomic and ecological data from multiple diverging pairs
of marine snails (Littorina) supports the search for speciation mechanisms. Placing
pairs on a one-dimensional speciation continuum, from undifferentiated populations
to species, obscured the complexity of speciation. Adding multiple axes helped
to describe either speciation routes or reproductive isolation in the snails.
Divergent ecological selection repeatedly generated barriers between ecotypes,
but appeared less important in completing speciation while genetic incompatibilities
played a key role. Chromosomal inversions contributed to genomic barriers, but
with variable impact. A multidimensional (hypercube) approach supported framing
of questions and identification of knowledge gaps and can be useful to understand
speciation in many other systems.
acknowledgement: KJ, MR, and RKB were supported by grants from the Swedish Research
Council (2021-0419, 2021-05243, and 2018-03695, respectively). RKB was also supported
by the Leverhulme Trust (RPG-2021-141), RF by FCT- Portuguese Science Foundation
(PTDC/BIA-EVL/1614/2021 and 2020.00275.CEECIND), and AMW by Norwegian Research Council
RCN (Project number 315287). We thank the members of the Integration of Speciation
Research network for stimulating discussions, the Littorina research community for
important contributions of data and analyses, and Cynthia Riginos for useful comments
on an earlier draft.
article_processing_charge: Yes (in subscription journal)
article_type: review
author:
- first_name: Kerstin
full_name: Johannesson, Kerstin
last_name: Johannesson
- first_name: Rui
full_name: Faria, Rui
last_name: Faria
- first_name: Alan
full_name: Le Moan, Alan
last_name: Le Moan
- first_name: Marina
full_name: Rafajlović, Marina
last_name: Rafajlović
- first_name: Anja M
full_name: Westram, Anja M
id: 3C147470-F248-11E8-B48F-1D18A9856A87
last_name: Westram
orcid: 0000-0003-1050-4969
- first_name: Roger K.
full_name: Butlin, Roger K.
last_name: Butlin
- first_name: Sean
full_name: Stankowski, Sean
id: 43161670-5719-11EA-8025-FABC3DDC885E
last_name: Stankowski
citation:
ama: Johannesson K, Faria R, Le Moan A, et al. Diverse pathways to speciation revealed
by marine snails. Trends in Genetics. 2024. doi:10.1016/j.tig.2024.01.002
apa: Johannesson, K., Faria, R., Le Moan, A., Rafajlović, M., Westram, A. M., Butlin,
R. K., & Stankowski, S. (2024). Diverse pathways to speciation revealed by
marine snails. Trends in Genetics. Cell Press. https://doi.org/10.1016/j.tig.2024.01.002
chicago: Johannesson, Kerstin, Rui Faria, Alan Le Moan, Marina Rafajlović, Anja
M Westram, Roger K. Butlin, and Sean Stankowski. “Diverse Pathways to Speciation
Revealed by Marine Snails.” Trends in Genetics. Cell Press, 2024. https://doi.org/10.1016/j.tig.2024.01.002.
ieee: K. Johannesson et al., “Diverse pathways to speciation revealed by
marine snails,” Trends in Genetics. Cell Press, 2024.
ista: Johannesson K, Faria R, Le Moan A, Rafajlović M, Westram AM, Butlin RK, Stankowski
S. 2024. Diverse pathways to speciation revealed by marine snails. Trends in Genetics.
mla: Johannesson, Kerstin, et al. “Diverse Pathways to Speciation Revealed by Marine
Snails.” Trends in Genetics, Cell Press, 2024, doi:10.1016/j.tig.2024.01.002.
short: K. Johannesson, R. Faria, A. Le Moan, M. Rafajlović, A.M. Westram, R.K. Butlin,
S. Stankowski, Trends in Genetics (2024).
date_created: 2024-03-10T23:00:54Z
date_published: 2024-02-22T00:00:00Z
date_updated: 2024-03-13T12:08:57Z
day: '22'
ddc:
- '570'
department:
- _id: NiBa
doi: 10.1016/j.tig.2024.01.002
external_id:
pmid:
- '38395682'
has_accepted_license: '1'
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
main_file_link:
- open_access: '1'
url: https://doi.org/10.1016/j.tig.2024.01.002
month: '02'
oa: 1
oa_version: Published Version
pmid: 1
publication: Trends in Genetics
publication_identifier:
eissn:
- 1362-4555
issn:
- 0168-9525
publication_status: epub_ahead
publisher: Cell Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Diverse pathways to speciation revealed by marine snails
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2024'
...
---
_id: '15098'
abstract:
- lang: eng
text: The paper is devoted to the analysis of the global well-posedness and the
interior regularity of the 2D Navier–Stokes equations with inhomogeneous stochastic
boundary conditions. The noise, white in time and coloured in space, can be interpreted
as the physical law describing the driving mechanism on the atmosphere–ocean interface,
i.e. as a balance of the shear stress of the ocean and the horizontal wind force.
acknowledgement: The authors thank Professor Franco Flandoli for useful discussions
and valuable insight into the subject. In particular, A.A. would like to thank professor
Franco Flandoli for hosting and financially contributing to his research visit at
Scuola Normale di Pisa in January 2023, where this work started. E.L. would like
to express sincere gratitude to Professor Marco Fuhrman for igniting his interest
in this particular field of research. E.L. want to thank Professor Matthias Hieber
and Dr. Martin Saal for useful discussions. Finally, the authors thank the anonymous
referee for helpful comments which improved the paper from its initial version.Open
access funding provided by Scuola Normale Superiore within the CRUI-CARE Agreement.
A. Agresti has received funding from the European Research Council (ERC) under the
European Union’s Horizon 2020 research and innovation programme (Grant Agreement
No. 948819).
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Antonio
full_name: Agresti, Antonio
id: 673cd0cc-9b9a-11eb-b144-88f30e1fbb72
last_name: Agresti
orcid: 0000-0002-9573-2962
- first_name: Eliseo
full_name: Luongo, Eliseo
last_name: Luongo
citation:
ama: Agresti A, Luongo E. Global well-posedness and interior regularity of 2D Navier-Stokes
equations with stochastic boundary conditions. Mathematische Annalen. 2024.
doi:10.1007/s00208-024-02812-0
apa: Agresti, A., & Luongo, E. (2024). Global well-posedness and interior regularity
of 2D Navier-Stokes equations with stochastic boundary conditions. Mathematische
Annalen. Springer Nature. https://doi.org/10.1007/s00208-024-02812-0
chicago: Agresti, Antonio, and Eliseo Luongo. “Global Well-Posedness and Interior
Regularity of 2D Navier-Stokes Equations with Stochastic Boundary Conditions.”
Mathematische Annalen. Springer Nature, 2024. https://doi.org/10.1007/s00208-024-02812-0.
ieee: A. Agresti and E. Luongo, “Global well-posedness and interior regularity of
2D Navier-Stokes equations with stochastic boundary conditions,” Mathematische
Annalen. Springer Nature, 2024.
ista: Agresti A, Luongo E. 2024. Global well-posedness and interior regularity of
2D Navier-Stokes equations with stochastic boundary conditions. Mathematische
Annalen.
mla: Agresti, Antonio, and Eliseo Luongo. “Global Well-Posedness and Interior Regularity
of 2D Navier-Stokes Equations with Stochastic Boundary Conditions.” Mathematische
Annalen, Springer Nature, 2024, doi:10.1007/s00208-024-02812-0.
short: A. Agresti, E. Luongo, Mathematische Annalen (2024).
date_created: 2024-03-10T23:00:54Z
date_published: 2024-02-27T00:00:00Z
date_updated: 2024-03-13T12:20:23Z
day: '27'
department:
- _id: JuFi
doi: 10.1007/s00208-024-02812-0
ec_funded: 1
external_id:
arxiv:
- '2306.11081'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1007/s00208-024-02812-0
month: '02'
oa: 1
oa_version: Published Version
project:
- _id: 0aa76401-070f-11eb-9043-b5bb049fa26d
call_identifier: H2020
grant_number: '948819'
name: Bridging Scales in Random Materials
publication: Mathematische Annalen
publication_identifier:
eissn:
- 1432-1807
issn:
- 0025-5831
publication_status: epub_ahead
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Global well-posedness and interior regularity of 2D Navier-Stokes equations
with stochastic boundary conditions
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2024'
...
---
_id: '15122'
abstract:
- lang: eng
text: Quantum computers are increasing in size and quality but are still very noisy.
Error mitigation extends the size of the quantum circuits that noisy devices can
meaningfully execute. However, state-of-the-art error mitigation methods are hard
to implement and the limited qubit connectivity in superconducting qubit devices
restricts most applications to the hardware's native topology. Here we show a
quantum approximate optimization algorithm (QAOA) on nonplanar random regular
graphs with up to 40 nodes enabled by a machine learning-based error mitigation.
We use a swap network with careful decision-variable-to-qubit mapping and a feed-forward
neural network to optimize a depth-two QAOA on up to 40 qubits. We observe a meaningful
parameter optimization for the largest graph which requires running quantum circuits
with 958 two-qubit gates. Our paper emphasizes the need to mitigate samples, and
not only expectation values, in quantum approximate optimization. These results
are a step towards executing quantum approximate optimization at a scale that
is not classically simulable. Reaching such system sizes is key to properly understanding
the true potential of heuristic algorithms like QAOA.
acknowledgement: S.H.S. acknowledges support from the IBM Ph.D. fellowship 2022 in
quantum computing. The authors also thank M. Serbyn, R. Kueng, R. A. Medina, and
S. Woerner for fruitful discussions.
article_number: '013223'
article_processing_charge: Yes
article_type: original
author:
- first_name: Stefan
full_name: Sack, Stefan
id: dd622248-f6e0-11ea-865d-ce382a1c81a5
last_name: Sack
orcid: 0000-0001-5400-8508
- first_name: Daniel J.
full_name: Egger, Daniel J.
last_name: Egger
citation:
ama: Sack S, Egger DJ. Large-scale quantum approximate optimization on nonplanar
graphs with machine learning noise mitigation. Physical Review Research.
2024;6(1). doi:10.1103/PhysRevResearch.6.013223
apa: Sack, S., & Egger, D. J. (2024). Large-scale quantum approximate optimization
on nonplanar graphs with machine learning noise mitigation. Physical Review
Research. American Physical Society. https://doi.org/10.1103/PhysRevResearch.6.013223
chicago: Sack, Stefan, and Daniel J. Egger. “Large-Scale Quantum Approximate Optimization
on Nonplanar Graphs with Machine Learning Noise Mitigation.” Physical Review
Research. American Physical Society, 2024. https://doi.org/10.1103/PhysRevResearch.6.013223.
ieee: S. Sack and D. J. Egger, “Large-scale quantum approximate optimization on
nonplanar graphs with machine learning noise mitigation,” Physical Review Research,
vol. 6, no. 1. American Physical Society, 2024.
ista: Sack S, Egger DJ. 2024. Large-scale quantum approximate optimization on nonplanar
graphs with machine learning noise mitigation. Physical Review Research. 6(1),
013223.
mla: Sack, Stefan, and Daniel J. Egger. “Large-Scale Quantum Approximate Optimization
on Nonplanar Graphs with Machine Learning Noise Mitigation.” Physical Review
Research, vol. 6, no. 1, 013223, American Physical Society, 2024, doi:10.1103/PhysRevResearch.6.013223.
short: S. Sack, D.J. Egger, Physical Review Research 6 (2024).
date_created: 2024-03-17T23:00:59Z
date_published: 2024-03-01T00:00:00Z
date_updated: 2024-03-19T07:24:03Z
day: '01'
ddc:
- '530'
department:
- _id: MaSe
doi: 10.1103/PhysRevResearch.6.013223
external_id:
arxiv:
- '2307.14427'
file:
- access_level: open_access
checksum: 274c9f1b15b3547a10a03f39e4ccc582
content_type: application/pdf
creator: dernst
date_created: 2024-03-19T07:16:38Z
date_updated: 2024-03-19T07:16:38Z
file_id: '15123'
file_name: 2024_PhysicalReviewResearch_Sack.pdf
file_size: 2777593
relation: main_file
success: 1
file_date_updated: 2024-03-19T07:16:38Z
has_accepted_license: '1'
intvolume: ' 6'
issue: '1'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
project:
- _id: bd660c93-d553-11ed-ba76-fb0fb6f49c0d
name: Quantum_Quantum Circuits and Software_Variational quantum algorithms on NISQ
devices
publication: Physical Review Research
publication_identifier:
issn:
- 2643-1564
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Large-scale quantum approximate optimization on nonplanar graphs with machine
learning noise mitigation
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: 6
year: '2024'
...
---
_id: '15119'
abstract:
- lang: eng
text: In this paper we consider an SPDE where the leading term is a second order
operator with periodic boundary conditions, coefficients which are measurable
in (t,ω) , and Hölder continuous in space. Assuming stochastic parabolicity conditions,
we prove Lp((0,T)×Ω,tκdt;Hσ,q(Td)) -estimates. The main novelty is that we do
not require p=q . Moreover, we allow arbitrary σ∈R and weights in time. Such
mixed regularity estimates play a crucial role in applications to nonlinear SPDEs
which is clear from our previous work. To prove our main results we develop a
general perturbation theory for SPDEs. Moreover, we prove a new result on pointwise
multiplication in spaces with fractional smoothness.
acknowledgement: The first author has been partially supported by the Nachwuchsring
– Network for the promotion of young scientists – at TU Kaiserslautern. The second
author is supported by the VIDI subsidy 639.032.427 of the Netherlands Organisation
for Scientific Research (NWO). The authors thank the anonymous referees and Max
Sauerbrey for careful reading and helpful suggestions.
article_processing_charge: No
article_type: original
author:
- first_name: Antonio
full_name: Agresti, Antonio
id: 673cd0cc-9b9a-11eb-b144-88f30e1fbb72
last_name: Agresti
orcid: 0000-0002-9573-2962
- first_name: Mark
full_name: Veraar, Mark
last_name: Veraar
citation:
ama: Agresti A, Veraar M. Stochastic maximal Lp(Lq)-regularity for second order
systems with periodic boundary conditions. Annales de l’institut Henri Poincare
Probability and Statistics. 2024;60(1):413-430. doi:10.1214/22-AIHP1333
apa: Agresti, A., & Veraar, M. (2024). Stochastic maximal Lp(Lq)-regularity
for second order systems with periodic boundary conditions. Annales de l’institut
Henri Poincare Probability and Statistics. Institute of Mathematical Statistics.
https://doi.org/10.1214/22-AIHP1333
chicago: Agresti, Antonio, and Mark Veraar. “Stochastic Maximal Lp(Lq)-Regularity
for Second Order Systems with Periodic Boundary Conditions.” Annales de l’institut
Henri Poincare Probability and Statistics. Institute of Mathematical Statistics,
2024. https://doi.org/10.1214/22-AIHP1333.
ieee: A. Agresti and M. Veraar, “Stochastic maximal Lp(Lq)-regularity for second
order systems with periodic boundary conditions,” Annales de l’institut Henri
Poincare Probability and Statistics, vol. 60, no. 1. Institute of Mathematical
Statistics, pp. 413–430, 2024.
ista: Agresti A, Veraar M. 2024. Stochastic maximal Lp(Lq)-regularity for second
order systems with periodic boundary conditions. Annales de l’institut Henri Poincare
Probability and Statistics. 60(1), 413–430.
mla: Agresti, Antonio, and Mark Veraar. “Stochastic Maximal Lp(Lq)-Regularity for
Second Order Systems with Periodic Boundary Conditions.” Annales de l’institut
Henri Poincare Probability and Statistics, vol. 60, no. 1, Institute of Mathematical
Statistics, 2024, pp. 413–30, doi:10.1214/22-AIHP1333.
short: A. Agresti, M. Veraar, Annales de l’institut Henri Poincare Probability and
Statistics 60 (2024) 413–430.
date_created: 2024-03-17T23:00:58Z
date_published: 2024-02-01T00:00:00Z
date_updated: 2024-03-19T08:14:17Z
day: '01'
department:
- _id: JuFi
doi: 10.1214/22-AIHP1333
external_id:
arxiv:
- '2106.01274'
intvolume: ' 60'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2106.01274
month: '02'
oa: 1
oa_version: Preprint
page: 413-430
publication: Annales de l'institut Henri Poincare Probability and Statistics
publication_identifier:
issn:
- 0246-0203
publication_status: published
publisher: Institute of Mathematical Statistics
quality_controlled: '1'
scopus_import: '1'
status: public
title: Stochastic maximal Lp(Lq)-regularity for second order systems with periodic
boundary conditions
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 60
year: '2024'
...
---
_id: '14478'
abstract:
- lang: eng
text: Entire chromosomes are typically only transmitted vertically from one generation
to the next. The horizontal transfer of such chromosomes has long been considered
improbable, yet gained recent support in several pathogenic fungi where it may
affect the fitness or host specificity. To date, it is unknown how these transfers
occur, how common they are and whether they can occur between different species.
In this study, we show multiple independent instances of horizontal transfers
of the same accessory chromosome between two distinct strains of the asexual entomopathogenic
fungusMetarhizium robertsiiduring experimental co-infection
of its insect host, the Argentine ant. Notably, only the one chromosome – but
no other – was transferred from the donor to the recipient strain. The recipient
strain, now harboring the accessory chromosome, exhibited a competitive advantage
under certain host conditions. By phylogenetic analysis we further demonstrate
that the same accessory chromosome was horizontally transferred in a natural environment
betweenM. robertsiiand another congeneric insect pathogen,M.
guizhouense. Hence horizontal chromosome transfer is not limited
to the observed frequent events within species during experimental infections
but also occurs naturally across species. The transferred accessory chromosome
contains genes that might be involved in its preferential horizontal transfer,
encoding putative histones and histone-modifying enzymes, but also putative virulence
factors that may support its establishment. Our study reveals that both intra-
and interspecies horizontal transfer of entire chromosomes is more frequent than
previously assumed, likely representing a not uncommon mechanism for gene exchange.Significance
StatementThe enormous success of bacterial pathogens has
been attributed to their ability to exchange genetic material between one another.
Similarly, in eukaryotes, horizontal transfer of genetic material allowed the
spread of virulence factors across species. The horizontal transfer of whole chromosomes
could be an important pathway for such exchange of genetic material, but little
is known about the origin of transferable chromosomes and how frequently they
are exchanged. Here, we show that the transfer of accessory chromosomes - chromosomes
that are non-essential but may provide fitness benefits - is common during fungal
co-infections and is even possible between distant pathogenic species, highlighting
the importance of horizontal gene transfer via chromosome transfer also for the
evolution and function of eukaryotic pathogens.
acknowledgement: We thank Bernhardt Steinwender, Jorgen Eilenberg, and Nicolai V.
Meyling for the fungal strains. We further thank Chengshu Wang for providing the
short sequencing reads for M. guizhouense ARESF977 he used for his published genome
assembly, and Kristian Ullrich for help in the bioinformatics analysis for methylation
pattern in Nanopore reads, and the VBC and the Max Planck Society for the use of
their sequencing centers. We thank Barbara Milutinović and Hinrich Schulenburg for
discussion, and Tal Dagan and Jens Rolff for comments on a previous version of the
manuscript. Fig. 1A was created with BioRender.com. This study received funding
by the European Research Council under the European Union’s Horizon 2020 Research
and Innovation Programme (No. 771402; EPIDEMICSonCHIP) to S.C. and by the German
Research Foundation (DFG grant HA9263/1-1) to M.H.
article_number: e2316284121
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Michael
full_name: Habig, Michael
last_name: Habig
- first_name: Anna V
full_name: Grasse, Anna V
id: 406F989C-F248-11E8-B48F-1D18A9856A87
last_name: Grasse
- first_name: Judith
full_name: Müller, Judith
last_name: Müller
- first_name: Eva H.
full_name: Stukenbrock, Eva H.
last_name: Stukenbrock
- first_name: Hanna
full_name: Leitner, Hanna
id: 8fc5c6f6-5903-11ec-abad-c83f046253e7
last_name: Leitner
- first_name: Sylvia
full_name: Cremer, Sylvia
id: 2F64EC8C-F248-11E8-B48F-1D18A9856A87
last_name: Cremer
orcid: 0000-0002-2193-3868
citation:
ama: Habig M, Grasse AV, Müller J, Stukenbrock EH, Leitner H, Cremer S. Frequent
horizontal chromosome transfer between asexual fungal insect pathogens. Proceedings
of the National Academy of Sciences of the United States of America. 2024;121(11).
doi:10.1073/pnas.2316284121
apa: Habig, M., Grasse, A. V., Müller, J., Stukenbrock, E. H., Leitner, H., &
Cremer, S. (2024). Frequent horizontal chromosome transfer between asexual fungal
insect pathogens. Proceedings of the National Academy of Sciences of the United
States of America. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.2316284121
chicago: Habig, Michael, Anna V Grasse, Judith Müller, Eva H. Stukenbrock, Hanna
Leitner, and Sylvia Cremer. “Frequent Horizontal Chromosome Transfer between Asexual
Fungal Insect Pathogens.” Proceedings of the National Academy of Sciences of
the United States of America. Proceedings of the National Academy of Sciences,
2024. https://doi.org/10.1073/pnas.2316284121.
ieee: M. Habig, A. V. Grasse, J. Müller, E. H. Stukenbrock, H. Leitner, and S. Cremer,
“Frequent horizontal chromosome transfer between asexual fungal insect pathogens,”
Proceedings of the National Academy of Sciences of the United States of America,
vol. 121, no. 11. Proceedings of the National Academy of Sciences, 2024.
ista: Habig M, Grasse AV, Müller J, Stukenbrock EH, Leitner H, Cremer S. 2024. Frequent
horizontal chromosome transfer between asexual fungal insect pathogens. Proceedings
of the National Academy of Sciences of the United States of America. 121(11),
e2316284121.
mla: Habig, Michael, et al. “Frequent Horizontal Chromosome Transfer between Asexual
Fungal Insect Pathogens.” Proceedings of the National Academy of Sciences of
the United States of America, vol. 121, no. 11, e2316284121, Proceedings of
the National Academy of Sciences, 2024, doi:10.1073/pnas.2316284121.
short: M. Habig, A.V. Grasse, J. Müller, E.H. Stukenbrock, H. Leitner, S. Cremer,
Proceedings of the National Academy of Sciences of the United States of America
121 (2024).
date_created: 2023-10-31T13:30:00Z
date_published: 2024-03-12T00:00:00Z
date_updated: 2024-03-19T09:07:20Z
day: '12'
ddc:
- '570'
department:
- _id: SyCr
doi: 10.1073/pnas.2316284121
ec_funded: 1
external_id:
pmid:
- '38442176'
file:
- access_level: open_access
checksum: f5e871db617b682edc71fcd08670dc81
content_type: application/pdf
creator: dernst
date_created: 2024-03-19T09:02:57Z
date_updated: 2024-03-19T09:02:57Z
file_id: '15124'
file_name: 2024_PNAS_Habig.pdf
file_size: 5750361
relation: main_file
success: 1
file_date_updated: 2024-03-19T09:02:57Z
has_accepted_license: '1'
intvolume: ' 121'
issue: '11'
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc-nd/4.0/
month: '03'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 2649B4DE-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '771402'
name: Epidemics in ant societies on a chip
publication: Proceedings of the National Academy of Sciences of the United States
of America
publication_identifier:
eissn:
- 1091-6490
issn:
- 0027-8424
publication_status: published
publisher: Proceedings of the National Academy of Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: Frequent horizontal chromosome transfer between asexual fungal insect pathogens
tmp:
image: /images/cc_by_nc_nd.png
legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
(CC BY-NC-ND 4.0)
short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 121
year: '2024'
...
---
_id: '10045'
abstract:
- lang: eng
text: "Given a fixed finite metric space (V,μ), the {\\em minimum 0-extension problem},
denoted as 0-Ext[μ], is equivalent to the following optimization problem: minimize
function of the form minx∈Vn∑ifi(xi)+∑ijcijμ(xi,xj) where cij,cvi are given nonnegative
costs and fi:V→R are functions given by fi(xi)=∑v∈Vcviμ(xi,v). The computational
complexity of 0-Ext[μ] has been recently established by Karzanov and by Hirai:
if metric μ is {\\em orientable modular} then 0-Ext[μ] can be solved in polynomial
time, otherwise 0-Ext[μ] is NP-hard. To prove the tractability part, Hirai developed
a theory of discrete convex functions on orientable modular graphs generalizing
several known classes of functions in discrete convex analysis, such as L♮-convex
functions. We consider a more general version of the problem in which unary functions
fi(xi) can additionally have terms of the form cuv;iμ(xi,{u,v}) for {u,v}∈F, where
set F⊆(V2) is fixed. We extend the complexity classification above by providing
an explicit condition on (μ,F) for the problem to be tractable. In order to prove
the tractability part, we generalize Hirai's theory and define a larger class
of discrete convex functions. It covers, in particular, another well-known class
of functions, namely submodular functions on an integer lattice. Finally, we improve
the complexity of Hirai's algorithm for solving 0-Ext on orientable modular graphs.\r\n"
acknowledgement: We thank the anonymous reviewers for their careful reading of our
manuscript and their many insightful comments and suggestions. Open access funding
provided by Institute of Science and Technology (IST Austria).
article_number: '2109.10203'
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Martin
full_name: Dvorak, Martin
id: 40ED02A8-C8B4-11E9-A9C0-453BE6697425
last_name: Dvorak
orcid: 0000-0001-5293-214X
- first_name: Vladimir
full_name: Kolmogorov, Vladimir
id: 3D50B0BA-F248-11E8-B48F-1D18A9856A87
last_name: Kolmogorov
citation:
ama: Dvorak M, Kolmogorov V. Generalized minimum 0-extension problem and discrete
convexity. Mathematical Programming. 2024. doi:10.1007/s10107-024-02064-5
apa: Dvorak, M., & Kolmogorov, V. (2024). Generalized minimum 0-extension problem
and discrete convexity. Mathematical Programming. Springer Nature. https://doi.org/10.1007/s10107-024-02064-5
chicago: Dvorak, Martin, and Vladimir Kolmogorov. “Generalized Minimum 0-Extension
Problem and Discrete Convexity.” Mathematical Programming. Springer Nature,
2024. https://doi.org/10.1007/s10107-024-02064-5.
ieee: M. Dvorak and V. Kolmogorov, “Generalized minimum 0-extension problem and
discrete convexity,” Mathematical Programming. Springer Nature, 2024.
ista: Dvorak M, Kolmogorov V. 2024. Generalized minimum 0-extension problem and
discrete convexity. Mathematical Programming., 2109.10203.
mla: Dvorak, Martin, and Vladimir Kolmogorov. “Generalized Minimum 0-Extension Problem
and Discrete Convexity.” Mathematical Programming, 2109.10203, Springer
Nature, 2024, doi:10.1007/s10107-024-02064-5.
short: M. Dvorak, V. Kolmogorov, Mathematical Programming (2024).
date_created: 2021-09-27T10:48:23Z
date_published: 2024-03-07T00:00:00Z
date_updated: 2024-03-19T08:20:31Z
day: '07'
ddc:
- '004'
department:
- _id: GradSch
- _id: VlKo
doi: 10.1007/s10107-024-02064-5
external_id:
arxiv:
- '2109.10203'
file:
- access_level: open_access
checksum: e7e83065f7bc18b9c188bf93b5ca5db6
content_type: application/pdf
creator: mdvorak
date_created: 2021-09-27T10:54:51Z
date_updated: 2021-09-27T10:54:51Z
file_id: '10046'
file_name: Generalized-0-Ext.pdf
file_size: 603672
relation: main_file
success: 1
file_date_updated: 2021-09-27T10:54:51Z
has_accepted_license: '1'
keyword:
- minimum 0-extension problem
- metric labeling problem
- discrete metric spaces
- metric extensions
- computational complexity
- valued constraint satisfaction problems
- discrete convex analysis
- L-convex functions
language:
- iso: eng
month: '03'
oa: 1
oa_version: Preprint
publication: Mathematical Programming
publication_identifier:
eissn:
- 1436-4646
issn:
- 0025-5610
publication_status: epub_ahead
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Generalized minimum 0-extension problem and discrete convexity
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2024'
...
---
_id: '15121'
abstract:
- lang: eng
text: We present an auction algorithm using multiplicative instead of constant weight
updates to compute a (1-E)-approximate maximum weight matching (MWM) in a bipartite
graph with n vertices and m edges in time 0(mE-1), beating the running time of
the fastest known approximation algorithm of Duan and Pettie [JACM ’14] that runs
in 0(mE-1 log E-1). Our algorithm is very simple and it can be extended to give
a dynamic data structure that maintains a (1-E)-approximate maximum weight matching
under (1) one-sided vertex deletions (with incident edges) and (2) one-sided vertex
insertions (with incident edges sorted by weight) to the other side. The total
time time used is 0(mE-1), where m is the sum of the number of initially existing
and inserted edges.
acknowledgement: The first author thanks Chandra Chekuri for useful discussions about
this paper. This work was done in part at the University of Vienna. This project
has received funding from the European Research Council (ERC) under the European
Union’s Horizon 2020 research and innovation programme (Grant agreement No. 101019564
“The Design of Modern Fully Dynamic Data Structures (MoDynStruct)” and from the
Austrian Science Fund (FWF) project “Fast Algorithms for a Reactive Network Layer
(ReactNet)”, P 33775-N, with additional funding from the netidee SCIENCE Stiftung,
2020–2024.
article_processing_charge: No
article_type: original
author:
- first_name: Da Wei
full_name: Zheng, Da Wei
last_name: Zheng
- first_name: Monika H
full_name: Henzinger, Monika H
id: 540c9bbd-f2de-11ec-812d-d04a5be85630
last_name: Henzinger
orcid: 0000-0002-5008-6530
citation:
ama: Zheng DW, Henzinger MH. Multiplicative auction algorithm for approximate maximum
weight bipartite matching. Mathematical Programming. 2024. doi:10.1007/s10107-024-02066-3
apa: Zheng, D. W., & Henzinger, M. H. (2024). Multiplicative auction algorithm
for approximate maximum weight bipartite matching. Mathematical Programming.
Springer Nature. https://doi.org/10.1007/s10107-024-02066-3
chicago: Zheng, Da Wei, and Monika H Henzinger. “Multiplicative Auction Algorithm
for Approximate Maximum Weight Bipartite Matching.” Mathematical Programming.
Springer Nature, 2024. https://doi.org/10.1007/s10107-024-02066-3.
ieee: D. W. Zheng and M. H. Henzinger, “Multiplicative auction algorithm for approximate
maximum weight bipartite matching,” Mathematical Programming. Springer
Nature, 2024.
ista: Zheng DW, Henzinger MH. 2024. Multiplicative auction algorithm for approximate
maximum weight bipartite matching. Mathematical Programming.
mla: Zheng, Da Wei, and Monika H. Henzinger. “Multiplicative Auction Algorithm for
Approximate Maximum Weight Bipartite Matching.” Mathematical Programming,
Springer Nature, 2024, doi:10.1007/s10107-024-02066-3.
short: D.W. Zheng, M.H. Henzinger, Mathematical Programming (2024).
date_created: 2024-03-17T23:00:58Z
date_published: 2024-03-06T00:00:00Z
date_updated: 2024-03-19T08:32:32Z
day: '06'
department:
- _id: MoHe
doi: 10.1007/s10107-024-02066-3
ec_funded: 1
external_id:
arxiv:
- '2301.09217'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2301.09217
month: '03'
oa: 1
oa_version: Preprint
project:
- _id: bd9ca328-d553-11ed-ba76-dc4f890cfe62
call_identifier: H2020
grant_number: '101019564'
name: The design and evaluation of modern fully dynamic data structures
- _id: bd9e3a2e-d553-11ed-ba76-8aa684ce17fe
grant_number: 'P33775 '
name: Fast Algorithms for a Reactive Network Layer
publication: Mathematical Programming
publication_identifier:
eissn:
- 1436-4646
issn:
- 0025-5610
publication_status: epub_ahead
publisher: Springer Nature
quality_controlled: '1'
related_material:
record:
- id: '13236'
relation: earlier_version
status: public
scopus_import: '1'
status: public
title: Multiplicative auction algorithm for approximate maximum weight bipartite matching
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2024'
...
---
_id: '15116'
abstract:
- lang: eng
text: Water is known to play an important role in collagen self-assembly, but it
is still largely unclear how water–collagen interactions influence the assembly
process and determine the fibril network properties. Here, we use the H2O/D2O
isotope effect on the hydrogen-bond strength in water to investigate the role
of hydration in collagen self-assembly. We dissolve collagen in H2O and D2O and
compare the growth kinetics and the structure of the collagen assemblies formed
in these water isotopomers. Surprisingly, collagen assembly occurs ten times faster
in D2O than in H2O, and collagen in D2O self-assembles into much thinner fibrils,
that form a more inhomogeneous and softer network, with a fourfold reduction in
elastic modulus when compared to H2O. Combining spectroscopic measurements with
atomistic simulations, we show that collagen in D2O is less hydrated than in H2O.
This partial dehydration lowers the enthalpic penalty for water removal and reorganization
at the collagen–water interface, increasing the self-assembly rate and the number
of nucleation centers, leading to thinner fibrils and a softer network. Coarse-grained
simulations show that the acceleration in the initial nucleation rate can be reproduced
by the enhancement of electrostatic interactions. These results show that water
acts as a mediator between collagen monomers, by modulating their interactions
so as to optimize the assembly process and, thus, the final network properties.
We believe that isotopically modulating the hydration of proteins can be a valuable
method to investigate the role of water in protein structural dynamics and protein
self-assembly.
acknowledgement: We thank Dr. Steven Roeters (Aarhus University), Dr. Federica Burla,
and Prof. Dr. Mischa Bonn (Institute for Polymer Research, Mainz, Germany) for the
useful discussions. We thank Dr. Wim Roeterdink and Michiel Hilberts for technical
support. G.H.K. acknowledges financial support by the “BaSyC Building a Synthetic
Cell” Gravitation grant (024.003.019) of The Netherlands Ministry of Education,
Culture and Science (OCW) and The Netherlands Organization for Scientific Research
and from NWO grant OCENW.GROOT.2019.022. This work has received support from the
National Research Foundation of Korea (NRF), funded by the Ministry of Science and
ICT, under Grant No. 2022K1A3A1A04062969. This publication is part of the project
(with Project Number VI.Veni.212.240) of the research programme NWO Talent Programme
Veni 2021, which is financed by the Dutch Research Council (NWO). I.M.I. acknowledges
support from the Sectorplan Bèta & Techniek of the Dutch Government and the Dementia
Research - Synapsis Foundation Switzerland. A.Š. and K.K. acknowledge support from
Royal Society and European Research Council Starting Grant. G. Giubertoni kindly
thanks to the Care4Bones community and the Collagen Café community for reminding
that we do not own the knowledge we create, but it is, rather, a collective resource
intended for the advancement of human progress.
article_number: e2313162121
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Giulia
full_name: Giubertoni, Giulia
last_name: Giubertoni
- first_name: Liru
full_name: Feng, Liru
last_name: Feng
- first_name: Kevin
full_name: Klein, Kevin
last_name: Klein
- first_name: Guido
full_name: Giannetti, Guido
last_name: Giannetti
- first_name: Luco
full_name: Rutten, Luco
last_name: Rutten
- first_name: Yeji
full_name: Choi, Yeji
last_name: Choi
- first_name: Anouk
full_name: Van Der Net, Anouk
last_name: Van Der Net
- first_name: Gerard
full_name: Castro-Linares, Gerard
last_name: Castro-Linares
- first_name: Federico
full_name: Caporaletti, Federico
last_name: Caporaletti
- first_name: Dimitra
full_name: Micha, Dimitra
last_name: Micha
- first_name: Johannes
full_name: Hunger, Johannes
last_name: Hunger
- first_name: Antoine
full_name: Deblais, Antoine
last_name: Deblais
- first_name: Daniel
full_name: Bonn, Daniel
last_name: Bonn
- first_name: Nico
full_name: Sommerdijk, Nico
last_name: Sommerdijk
- first_name: Anđela
full_name: Šarić, Anđela
id: bf63d406-f056-11eb-b41d-f263a6566d8b
last_name: Šarić
orcid: 0000-0002-7854-2139
- first_name: Ioana M.
full_name: Ilie, Ioana M.
last_name: Ilie
- first_name: Gijsje H.
full_name: Koenderink, Gijsje H.
last_name: Koenderink
- first_name: Sander
full_name: Woutersen, Sander
last_name: Woutersen
citation:
ama: Giubertoni G, Feng L, Klein K, et al. Elucidating the role of water in collagen
self-assembly by isotopically modulating collagen hydration. Proceedings of
the National Academy of Sciences of the United States of America. 2024;121(11).
doi:10.1073/pnas.2313162121
apa: Giubertoni, G., Feng, L., Klein, K., Giannetti, G., Rutten, L., Choi, Y., …
Woutersen, S. (2024). Elucidating the role of water in collagen self-assembly
by isotopically modulating collagen hydration. Proceedings of the National
Academy of Sciences of the United States of America. Proceedings of the National
Academy of Sciences. https://doi.org/10.1073/pnas.2313162121
chicago: Giubertoni, Giulia, Liru Feng, Kevin Klein, Guido Giannetti, Luco Rutten,
Yeji Choi, Anouk Van Der Net, et al. “Elucidating the Role of Water in Collagen
Self-Assembly by Isotopically Modulating Collagen Hydration.” Proceedings of
the National Academy of Sciences of the United States of America. Proceedings
of the National Academy of Sciences, 2024. https://doi.org/10.1073/pnas.2313162121.
ieee: G. Giubertoni et al., “Elucidating the role of water in collagen self-assembly
by isotopically modulating collagen hydration,” Proceedings of the National
Academy of Sciences of the United States of America, vol. 121, no. 11. Proceedings
of the National Academy of Sciences, 2024.
ista: Giubertoni G, Feng L, Klein K, Giannetti G, Rutten L, Choi Y, Van Der Net
A, Castro-Linares G, Caporaletti F, Micha D, Hunger J, Deblais A, Bonn D, Sommerdijk
N, Šarić A, Ilie IM, Koenderink GH, Woutersen S. 2024. Elucidating the role of
water in collagen self-assembly by isotopically modulating collagen hydration.
Proceedings of the National Academy of Sciences of the United States of America.
121(11), e2313162121.
mla: Giubertoni, Giulia, et al. “Elucidating the Role of Water in Collagen Self-Assembly
by Isotopically Modulating Collagen Hydration.” Proceedings of the National
Academy of Sciences of the United States of America, vol. 121, no. 11, e2313162121,
Proceedings of the National Academy of Sciences, 2024, doi:10.1073/pnas.2313162121.
short: G. Giubertoni, L. Feng, K. Klein, G. Giannetti, L. Rutten, Y. Choi, A. Van
Der Net, G. Castro-Linares, F. Caporaletti, D. Micha, J. Hunger, A. Deblais, D.
Bonn, N. Sommerdijk, A. Šarić, I.M. Ilie, G.H. Koenderink, S. Woutersen, Proceedings
of the National Academy of Sciences of the United States of America 121 (2024).
date_created: 2024-03-17T23:00:57Z
date_published: 2024-03-12T00:00:00Z
date_updated: 2024-03-19T11:41:32Z
day: '12'
ddc:
- '550'
department:
- _id: AnSa
doi: 10.1073/pnas.2313162121
external_id:
pmid:
- '38451946'
file:
- access_level: open_access
checksum: a3f7fdc29dd9f0a38952ab4e322b3a05
content_type: application/pdf
creator: dernst
date_created: 2024-03-19T10:22:42Z
date_updated: 2024-03-19T10:22:42Z
file_id: '15125'
file_name: 2024_PNAS_Giubertoni.pdf
file_size: 12952586
relation: main_file
success: 1
file_date_updated: 2024-03-19T10:22:42Z
has_accepted_license: '1'
intvolume: ' 121'
issue: '11'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
pmid: 1
publication: Proceedings of the National Academy of Sciences of the United States
of America
publication_identifier:
eissn:
- 1091-6490
issn:
- 0027-8424
publication_status: published
publisher: Proceedings of the National Academy of Sciences
quality_controlled: '1'
related_material:
record:
- id: '15126'
relation: research_data
status: public
scopus_import: '1'
status: public
title: Elucidating the role of water in collagen self-assembly by isotopically modulating
collagen hydration
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: 121
year: '2024'
...
---
_id: '15126'
abstract:
- lang: eng
text: This zip file contains data, and analysis for the paper "Elucidating the role
of water in collagen self-assembly by isotopically modulating collagen hydration".
article_processing_charge: No
author:
- first_name: G.
full_name: Giubertoni, G.
last_name: Giubertoni
- first_name: S.
full_name: Woutersen, S.
last_name: Woutersen
citation:
ama: Giubertoni G, Woutersen S. Dataset Collagen Self Assembly in H2O and D2O. 2024.
doi:10.21942/UVA.24829896
apa: Giubertoni, G., & Woutersen, S. (2024). Dataset Collagen Self Assembly
in H2O and D2O. Figshare. https://doi.org/10.21942/UVA.24829896
chicago: Giubertoni, G., and S. Woutersen. “Dataset Collagen Self Assembly in H2O
and D2O.” Figshare, 2024. https://doi.org/10.21942/UVA.24829896.
ieee: G. Giubertoni and S. Woutersen, “Dataset Collagen Self Assembly in H2O and
D2O.” Figshare, 2024.
ista: Giubertoni G, Woutersen S. 2024. Dataset Collagen Self Assembly in H2O and
D2O, Figshare, 10.21942/UVA.24829896.
mla: Giubertoni, G., and S. Woutersen. Dataset Collagen Self Assembly in H2O
and D2O. Figshare, 2024, doi:10.21942/UVA.24829896.
short: G. Giubertoni, S. Woutersen, (2024).
date_created: 2024-03-19T10:47:16Z
date_published: 2024-02-14T00:00:00Z
date_updated: 2024-03-19T11:41:33Z
day: '14'
ddc:
- '550'
doi: 10.21942/UVA.24829896
extern: '1'
has_accepted_license: '1'
main_file_link:
- open_access: '1'
url: https://doi.org/10.21942/UVA.24829896
month: '02'
oa: 1
oa_version: Published Version
publisher: Figshare
related_material:
record:
- id: '15116'
relation: used_in_publication
status: public
status: public
title: Dataset Collagen Self Assembly in H2O and D2O
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: research_data_reference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2024'
...
---
_id: '15094'
abstract:
- lang: eng
text: "Point sets, geometric networks, and arrangements of hyperplanes are fundamental
objects in\r\ndiscrete geometry that have captivated mathematicians for centuries,
if not millennia. This\r\nthesis seeks to cast new light on these structures by
illustrating specific instances where a\r\ntopological perspective, specifically
through discrete Morse theory and persistent homology,\r\nprovides valuable insights.\r\n\r\nAt
first glance, the topology of these geometric objects might seem uneventful: point
sets\r\nessentially lack of topology, arrangements of hyperplanes are a decomposition
of Rd, which\r\nis a contractible space, and the topology of a network primarily
involves the enumeration\r\nof connected components and cycles within the network.
However, beneath this apparent\r\nsimplicity, there lies an array of intriguing
structures, a small subset of which will be uncovered\r\nin this thesis.\r\n\r\nFocused
on three case studies, each addressing one of the mentioned objects, this work\r\nwill
showcase connections that intertwine topology with diverse fields such as combinatorial\r\ngeometry,
algorithms and data structures, and emerging applications like spatial biology.\r\n\r\n"
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- 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
citation:
ama: Cultrera di Montesano S. Persistence and Morse theory for discrete geometric
structures. 2024. doi:10.15479/at:ista:15094
apa: Cultrera di Montesano, S. (2024). Persistence and Morse theory for discrete
geometric structures. Institute of Science and Technology Austria. https://doi.org/10.15479/at:ista:15094
chicago: Cultrera di Montesano, Sebastiano. “Persistence and Morse Theory for Discrete
Geometric Structures.” Institute of Science and Technology Austria, 2024. https://doi.org/10.15479/at:ista:15094.
ieee: S. Cultrera di Montesano, “Persistence and Morse theory for discrete geometric
structures,” Institute of Science and Technology Austria, 2024.
ista: Cultrera di Montesano S. 2024. Persistence and Morse theory for discrete geometric
structures. Institute of Science and Technology Austria.
mla: Cultrera di Montesano, Sebastiano. Persistence and Morse Theory for Discrete
Geometric Structures. Institute of Science and Technology Austria, 2024, doi:10.15479/at:ista:15094.
short: S. Cultrera di Montesano, Persistence and Morse Theory for Discrete Geometric
Structures, Institute of Science and Technology Austria, 2024.
date_created: 2024-03-08T15:28:10Z
date_published: 2024-03-08T00:00:00Z
date_updated: 2024-03-20T09:36:57Z
day: '08'
ddc:
- '514'
- '500'
- '516'
degree_awarded: PhD
department:
- _id: GradSch
- _id: HeEd
doi: 10.15479/at:ista:15094
ec_funded: 1
file:
- access_level: open_access
checksum: 1e468bfa42a7dcf04d89f4dadc621c87
content_type: application/pdf
creator: scultrer
date_created: 2024-03-14T08:55:07Z
date_updated: 2024-03-14T08:55:07Z
file_id: '15112'
file_name: Thesis Sebastiano.pdf
file_size: 4106872
relation: main_file
success: 1
- access_level: closed
checksum: bcbd213490f5a7e68855a092bbce93f1
content_type: application/zip
creator: scultrer
date_created: 2024-03-14T08:56:24Z
date_updated: 2024-03-14T14:14:35Z
file_id: '15113'
file_name: Thesis (1).zip
file_size: 4746234
relation: source_file
file_date_updated: 2024-03-14T14:14:35Z
has_accepted_license: '1'
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc-sa/4.0/
month: '03'
oa: 1
oa_version: Published Version
page: '108'
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: The Wittgenstein Prize
- _id: 0aa4bc98-070f-11eb-9043-e6fff9c6a316
grant_number: I4887
name: Discretization in Geometry and Dynamics
- _id: 2561EBF4-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: I02979-N35
name: Persistence and stability of geometric complexes
publication_identifier:
issn:
- 2663 - 337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
record:
- id: '11660'
relation: part_of_dissertation
status: public
- id: '11658'
relation: part_of_dissertation
status: public
- id: '13182'
relation: part_of_dissertation
status: public
- id: '15090'
relation: part_of_dissertation
status: public
- id: '15091'
relation: part_of_dissertation
status: public
- id: '15093'
relation: part_of_dissertation
status: public
status: public
supervisor:
- first_name: Herbert
full_name: Edelsbrunner, Herbert
id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
last_name: Edelsbrunner
orcid: 0000-0002-9823-6833
title: Persistence and Morse theory for discrete geometric structures
tmp:
image: /images/cc_by_nc_sa.png
legal_code_url: https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode
name: Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC
BY-NC-SA 4.0)
short: CC BY-NC-SA (4.0)
type: dissertation
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2024'
...
---
_id: '15093'
abstract:
- lang: eng
text: We present a dynamic data structure for maintaining the persistent homology
of a time series of real numbers. The data structure supports local operations,
including the insertion and deletion of an item and the cutting and concatenating
of lists, each in time O(log n + k), in which n counts the critical items and
k the changes in the augmented persistence diagram. To achieve this, we design
a tailor-made tree structure with an unconventional representation, referred to
as banana tree, which may be useful in its own right.
acknowledgement: The first and second authors are funded by the European Research Council under the
European Union’s Horizon 2020 research and innovation programme, ERC grant no. 788183,“Alpha
Shape Theory Extended (Alpha)”, by the Wittgenstein Prize, FWF grant no. Z 342-N31,
and by the DFG Collaborative Research Center TRR 109, FWF grant no. I 02979-N35.The
third author received funding by the European Research Council under the European
Union’s Horizon 2020research and innovation programme, ERC grant no. 101019564, “The Design of Modern Fully Dynamic DataStructures
(MoDynStruct)”, and by the Austrian Science Fund through the Wittgenstein Prize
with FWF grant no. Z 422-N, and also by FWF grant no. I 5982-N, and by FWF grant
no. P 33775-N, with additional funding from the netidee SCIENCE Stiftung, 2020–2024. The
fourth author is funded by the Vienna Graduate School on Computational Optimization,
FWF project no. W1260-N35.
article_processing_charge: No
author:
- 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: Herbert
full_name: Edelsbrunner, Herbert
id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
last_name: Edelsbrunner
orcid: 0000-0002-9823-6833
- first_name: Monika H
full_name: Henzinger, Monika H
id: 540c9bbd-f2de-11ec-812d-d04a5be85630
last_name: Henzinger
orcid: 0000-0002-5008-6530
- first_name: Lara
full_name: Ost, Lara
last_name: Ost
citation:
ama: 'Cultrera di Montesano S, Edelsbrunner H, Henzinger MH, Ost L. Dynamically
maintaining the persistent homology of time series. In: Woodruff DP, ed. Proceedings
of the 2024 Annual ACM-SIAM Symposium on Discrete Algorithms (SODA). Society
for Industrial and Applied Mathematics; 2024:243-295. doi:10.1137/1.9781611977912.11'
apa: 'Cultrera di Montesano, S., Edelsbrunner, H., Henzinger, M. H., & Ost,
L. (2024). Dynamically maintaining the persistent homology of time series. In
D. P. Woodruff (Ed.), Proceedings of the 2024 Annual ACM-SIAM Symposium on
Discrete Algorithms (SODA) (pp. 243–295). Alexandria, VA, USA: Society for
Industrial and Applied Mathematics. https://doi.org/10.1137/1.9781611977912.11'
chicago: Cultrera di Montesano, Sebastiano, Herbert Edelsbrunner, Monika H Henzinger,
and Lara Ost. “Dynamically Maintaining the Persistent Homology of Time Series.”
In Proceedings of the 2024 Annual ACM-SIAM Symposium on Discrete Algorithms
(SODA), edited by David P. Woodruff, 243–95. Society for Industrial and Applied
Mathematics, 2024. https://doi.org/10.1137/1.9781611977912.11.
ieee: S. Cultrera di Montesano, H. Edelsbrunner, M. H. Henzinger, and L. Ost, “Dynamically
maintaining the persistent homology of time series,” in Proceedings of the
2024 Annual ACM-SIAM Symposium on Discrete Algorithms (SODA), Alexandria,
VA, USA, 2024, pp. 243–295.
ista: 'Cultrera di Montesano S, Edelsbrunner H, Henzinger MH, Ost L. 2024. Dynamically
maintaining the persistent homology of time series. Proceedings of the 2024 Annual
ACM-SIAM Symposium on Discrete Algorithms (SODA). SODA: Symposium on Discrete
Algorigthms, 243–295.'
mla: Cultrera di Montesano, Sebastiano, et al. “Dynamically Maintaining the Persistent
Homology of Time Series.” Proceedings of the 2024 Annual ACM-SIAM Symposium
on Discrete Algorithms (SODA), edited by David P. Woodruff, Society for Industrial
and Applied Mathematics, 2024, pp. 243–95, doi:10.1137/1.9781611977912.11.
short: S. Cultrera di Montesano, H. Edelsbrunner, M.H. Henzinger, L. Ost, in:, D.P.
Woodruff (Ed.), Proceedings of the 2024 Annual ACM-SIAM Symposium on Discrete
Algorithms (SODA), Society for Industrial and Applied Mathematics, 2024, pp. 243–295.
conference:
end_date: 2024-01-10
location: Alexandria, VA, USA
name: 'SODA: Symposium on Discrete Algorigthms'
start_date: 2024-01-07
date_created: 2024-03-08T10:27:39Z
date_published: 2024-01-04T00:00:00Z
date_updated: 2024-03-20T09:36:56Z
day: '04'
department:
- _id: HeEd
- _id: MoHe
doi: 10.1137/1.9781611977912.11
ec_funded: 1
editor:
- first_name: David P.
full_name: Woodruff, David P.
last_name: Woodruff
external_id:
arxiv:
- '2311.01115'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2311.01115
month: '01'
oa: 1
oa_version: Preprint
page: 243 - 295
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: The Wittgenstein Prize
- _id: bd9ca328-d553-11ed-ba76-dc4f890cfe62
call_identifier: H2020
grant_number: '101019564'
name: The design and evaluation of modern fully dynamic data structures
- _id: 34def286-11ca-11ed-8bc3-da5948e1613c
grant_number: Z00422
name: Wittgenstein Award - Monika Henzinger
- _id: bd9e3a2e-d553-11ed-ba76-8aa684ce17fe
grant_number: 'P33775 '
name: Fast Algorithms for a Reactive Network Layer
publication: Proceedings of the 2024 Annual ACM-SIAM Symposium on Discrete Algorithms
(SODA)
publication_identifier:
eisbn:
- '9781611977912'
publication_status: published
publisher: Society for Industrial and Applied Mathematics
quality_controlled: '1'
related_material:
record:
- id: '15094'
relation: dissertation_contains
status: public
status: public
title: Dynamically maintaining the persistent homology of time series
type: conference
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2024'
...
---
_id: '15091'
abstract:
- lang: eng
text: "Motivated by applications in the medical sciences, we study finite chromatic\r\nsets
in Euclidean space from a topological perspective. Based on the persistent\r\nhomology
for images, kernels and cokernels, we design provably stable\r\nhomological quantifiers
that describe the geometric micro- and macro-structure\r\nof how the color classes
mingle. These can be efficiently computed using\r\nchromatic variants of Delaunay
and alpha complexes, and code that does these\r\ncomputations is provided."
article_number: '2212.03128'
article_processing_charge: No
author:
- 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
- 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: Cultrera di Montesano S, Draganov O, Edelsbrunner H, Saghafian M. Chromatic
alpha complexes. arXiv.
apa: Cultrera di Montesano, S., Draganov, O., Edelsbrunner, H., & Saghafian,
M. (n.d.). Chromatic alpha complexes. arXiv.
chicago: Cultrera di Montesano, Sebastiano, Ondrej Draganov, Herbert Edelsbrunner,
and Morteza Saghafian. “Chromatic Alpha Complexes.” ArXiv, n.d.
ieee: S. Cultrera di Montesano, O. Draganov, H. Edelsbrunner, and M. Saghafian,
“Chromatic alpha complexes,” arXiv. .
ista: Cultrera di Montesano S, Draganov O, Edelsbrunner H, Saghafian M. Chromatic
alpha complexes. arXiv, 2212.03128.
mla: Cultrera di Montesano, Sebastiano, et al. “Chromatic Alpha Complexes.” ArXiv,
2212.03128.
short: S. Cultrera di Montesano, O. Draganov, H. Edelsbrunner, M. Saghafian, ArXiv
(n.d.).
date_created: 2024-03-08T10:13:59Z
date_published: 2024-02-07T00:00:00Z
date_updated: 2024-03-20T09:36:56Z
day: '07'
department:
- _id: HeEd
external_id:
arxiv:
- '2212.03128'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2212.03128
month: '02'
oa: 1
oa_version: Preprint
publication: arXiv
publication_status: submitted
related_material:
record:
- id: '15094'
relation: dissertation_contains
status: public
status: public
title: Chromatic alpha complexes
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: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2024'
...
---
_id: '15171'
abstract:
- lang: eng
text: The brain’s functionality is developed and maintained through synaptic plasticity.
As synapses undergo plasticity, they also affect each other. The nature of such
‘co-dependency’ is difficult to disentangle experimentally, because multiple synapses
must be monitored simultaneously. To help understand the experimentally observed
phenomena, we introduce a framework that formalizes synaptic co-dependency between
different connection types. The resulting model explains how inhibition can gate
excitatory plasticity while neighboring excitatory–excitatory interactions determine
the strength of long-term potentiation. Furthermore, we show how the interplay
between excitatory and inhibitory synapses can account for the quick rise and
long-term stability of a variety of synaptic weight profiles, such as orientation
tuning and dendritic clustering of co-active synapses. In recurrent neuronal networks,
co-dependent plasticity produces rich and stable motor cortex-like dynamics with
high input sensitivity. Our results suggest an essential role for the neighborly
synaptic interaction during learning, connecting micro-level physiology with network-wide
phenomena.
acknowledgement: We thank C. Currin, B. Podlaski and the members of the Vogels group
for fruitful discussions. E.J.A. and T.P.V. were supported by a Research Project
Grant from the Leverhulme Trust (RPG-2016-446; TPV), a Sir Henry Dale Fellowship
from the Wellcome Trust and the Royal Society (WT100000; T.P.V.), a Wellcome Trust
Senior Research Fellowship (214316/Z/18/Z; T.P.V.) and a European Research Council
Consolidator Grant (SYNAPSEEK, 819603; T.P.V.). For the purpose of open access,
the authors have applied a CC BY public copyright license to any author accepted
manuscript version arising from this submission. Open access funding provided by
University of Basel.
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Everton J.
full_name: Agnes, Everton J.
last_name: Agnes
- first_name: Tim P
full_name: Vogels, Tim P
id: CB6FF8D2-008F-11EA-8E08-2637E6697425
last_name: Vogels
orcid: 0000-0003-3295-6181
citation:
ama: Agnes EJ, Vogels TP. Co-dependent excitatory and inhibitory plasticity accounts
for quick, stable and long-lasting memories in biological networks. Nature
Neuroscience. 2024. doi:10.1038/s41593-024-01597-4
apa: Agnes, E. J., & Vogels, T. P. (2024). Co-dependent excitatory and inhibitory
plasticity accounts for quick, stable and long-lasting memories in biological
networks. Nature Neuroscience. Springer Nature. https://doi.org/10.1038/s41593-024-01597-4
chicago: Agnes, Everton J., and Tim P Vogels. “Co-Dependent Excitatory and Inhibitory
Plasticity Accounts for Quick, Stable and Long-Lasting Memories in Biological
Networks.” Nature Neuroscience. Springer Nature, 2024. https://doi.org/10.1038/s41593-024-01597-4.
ieee: E. J. Agnes and T. P. Vogels, “Co-dependent excitatory and inhibitory plasticity
accounts for quick, stable and long-lasting memories in biological networks,”
Nature Neuroscience. Springer Nature, 2024.
ista: Agnes EJ, Vogels TP. 2024. Co-dependent excitatory and inhibitory plasticity
accounts for quick, stable and long-lasting memories in biological networks. Nature
Neuroscience.
mla: Agnes, Everton J., and Tim P. Vogels. “Co-Dependent Excitatory and Inhibitory
Plasticity Accounts for Quick, Stable and Long-Lasting Memories in Biological
Networks.” Nature Neuroscience, Springer Nature, 2024, doi:10.1038/s41593-024-01597-4.
short: E.J. Agnes, T.P. Vogels, Nature Neuroscience (2024).
date_created: 2024-03-24T23:01:00Z
date_published: 2024-03-20T00:00:00Z
date_updated: 2024-03-25T07:04:05Z
day: '20'
department:
- _id: TiVo
doi: 10.1038/s41593-024-01597-4
ec_funded: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1038/s41593-024-01597-4
month: '03'
oa: 1
oa_version: Published Version
project:
- _id: 0aacfa84-070f-11eb-9043-d7eb2c709234
call_identifier: H2020
grant_number: '819603'
name: Learning the shape of synaptic plasticity rules for neuronal architectures
and function through machine learning.
publication: Nature Neuroscience
publication_identifier:
eissn:
- 1546-1726
issn:
- 1097-6256
publication_status: epub_ahead
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Co-dependent excitatory and inhibitory plasticity accounts for quick, stable
and long-lasting memories in biological networks
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2024'
...
---
_id: '15170'
abstract:
- lang: eng
text: 'The James Webb Space Telescope is revealing a new population of dust-reddened
broad-line active galactic nuclei (AGN) at redshifts z ≳ 5. Here we present deep
NIRSpec/Prism spectroscopy from the Cycle 1 Treasury program Ultradeep NIRSpec
and NIRCam ObserVations before the Epoch of Reionization (UNCOVER) of 15 AGN candidates
selected to be compact, with red continua in the rest-frame optical but with blue
slopes in the UV. From NIRCam photometry alone, they could have been dominated
by dusty star formation or an AGN. Here we show that the majority of the compact
red sources in UNCOVER are dust-reddened AGN: 60% show definitive evidence for
broad-line Hα with a FWHM > 2000 km s −1, 20% of the current data are inconclusive,
and 20% are brown dwarf stars. We propose an updated photometric criterion to
select red z > 5 AGN that excludes brown dwarfs and is expected to yield >80%
AGN. Remarkably, among all zphot > 5 galaxies with F277W – F444W > 1 in UNCOVER
at least 33% are AGN regardless of compactness, climbing to at least 80% AGN for
sources with F277W – F444W > 1.6. The confirmed AGN have black hole masses of
107–109M⊙. While their UV luminosities (−16 > MUV > −20 AB mag) are low compared
to UV-selected AGN at these epochs, consistent with percent-level scattered AGN
light or low levels of unobscured star formation, the inferred bolometric luminosities
are typical of 107–109M⊙ black holes radiating at ∼10%–40% the Eddington limit.
The number densities are surprisingly high at ∼10−5 Mpc−3 mag−1, 100 times more
common than the faintest UV-selected quasars, while accounting for ∼1% of the
UV-selected galaxies. While their UV faintness suggests they may not contribute
strongly to reionization, their ubiquity poses challenges to models of black hole
growth.'
acknowledgement: J.E.G. and A.D.G acknowledge support from NSF/AAG grant No. 1007094,
and J.E.G. also acknowledges support from NSF/AAG grant No. 1007052. A.Z. acknowledges
support by grant No. 2020750 from the United States-Israel Binational Science Foundation
(BSF) and grant No. 2109066 from the United States National Science Foundation (NSF),
and by the Ministry of Science & Technology of Israel. The Cosmic Dawn Center is
funded by the Danish National Research Foundation (DNRF) under grant No. 140. This
work has received funding from the Swiss State Secretariat for Education, Research
and Innovation (SERI) under contract number MB22.00072, as well as from the Swiss
National Science Foundation (SNSF) through project grant 200020_207349. P.D. acknowledges
support from the NWO grant 016.VIDI.189.162 ("ODIN") and from the European Commission's
and University of Groningen's CO-FUND Rosalind Franklin program. K.G. and T.N. acknowledge
support from Australian Research Council Laureate Fellowship FL180100060. H.A. and
I.C. acknowledge support from CNES, focused on the JWST mission, and the Programme
National Cosmology and Galaxies (PNCG) of CNRS/INSU with INP and IN2P3, cofunded
by CEA and CNES. R.P.N. acknowledges funding from JWST programs GO-1933 and GO-2279.
Support for this work was provided by NASA through the NASA Hubble Fellowship grant
HST-HF2-51515.001-A awarded by the Space Telescope Science Institute, which is operated
by the Association of Universities for Research in Astronomy, Incorporated, under
NASA contract NAS5-26555. The research of C.C.W. is supported by NOIRLab, which
is managed by the Association of Universities for Research in Astronomy (AURA) under
a cooperative agreement with the National Science Foundation. B.W. acknowledges
support from JWST-GO-02561.022-A. A.J.B. acknowledges funding support from NASA/ADAP
grant 21-ADAP21-0187. Support for this work was provided by The Brinson Foundation
through a Brinson Prize Fellowship grant. R.P.N. acknowledges support for this work
provided by NASA through the NASA Hubble Fellowship grant HST-HF2-51515.001-A awarded
by the Space Telescope Science Institute, which is operated by the Association of
Universities for Research in Astronomy, Incorporated, under NASA contract NAS5-26555.
C.P. thanks Marsha and Ralph Schilling for the generous support of this research.
article_number: '39'
article_processing_charge: Yes
article_type: original
author:
- first_name: Jenny E.
full_name: Greene, Jenny E.
last_name: Greene
- first_name: Ivo
full_name: Labbe, Ivo
last_name: Labbe
- first_name: Andy D.
full_name: Goulding, Andy D.
last_name: Goulding
- first_name: Lukas J.
full_name: Furtak, Lukas J.
last_name: Furtak
- first_name: Iryna
full_name: Chemerynska, Iryna
last_name: Chemerynska
- first_name: Vasily
full_name: Kokorev, Vasily
last_name: Kokorev
- first_name: Pratika
full_name: Dayal, Pratika
last_name: Dayal
- first_name: Marta
full_name: Volonteri, Marta
last_name: Volonteri
- first_name: Christina C.
full_name: Williams, Christina C.
last_name: Williams
- first_name: Bingjie
full_name: Wang, Bingjie
last_name: Wang
- first_name: David J.
full_name: Setton, David J.
last_name: Setton
- first_name: Adam J.
full_name: Burgasser, Adam J.
last_name: Burgasser
- first_name: Rachel
full_name: Bezanson, Rachel
last_name: Bezanson
- first_name: Hakim
full_name: Atek, Hakim
last_name: Atek
- first_name: Gabriel
full_name: Brammer, Gabriel
last_name: Brammer
- first_name: Sam E.
full_name: Cutler, Sam E.
last_name: Cutler
- first_name: Robert
full_name: Feldmann, Robert
last_name: Feldmann
- first_name: Seiji
full_name: Fujimoto, Seiji
last_name: Fujimoto
- first_name: Karl
full_name: Glazebrook, Karl
last_name: Glazebrook
- first_name: Anna
full_name: De Graaff, Anna
last_name: De Graaff
- first_name: Gourav
full_name: Khullar, Gourav
last_name: Khullar
- first_name: Joel
full_name: Leja, Joel
last_name: Leja
- first_name: Danilo
full_name: Marchesini, Danilo
last_name: Marchesini
- first_name: Michael V.
full_name: Maseda, Michael V.
last_name: Maseda
- 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: Tim B.
full_name: Miller, Tim B.
last_name: Miller
- first_name: Rohan P.
full_name: Naidu, Rohan P.
last_name: Naidu
- first_name: Themiya
full_name: Nanayakkara, Themiya
last_name: Nanayakkara
- first_name: Pascal A.
full_name: Oesch, Pascal A.
last_name: Oesch
- first_name: Richard
full_name: Pan, Richard
last_name: Pan
- first_name: Casey
full_name: Papovich, Casey
last_name: Papovich
- first_name: Sedona H.
full_name: Price, Sedona H.
last_name: Price
- first_name: Pieter
full_name: Van Dokkum, Pieter
last_name: Van Dokkum
- first_name: John R.
full_name: Weaver, John R.
last_name: Weaver
- first_name: Katherine E.
full_name: Whitaker, Katherine E.
last_name: Whitaker
- first_name: Adi
full_name: Zitrin, Adi
last_name: Zitrin
citation:
ama: Greene JE, Labbe I, Goulding AD, et al. UNCOVER spectroscopy confirms the surprising
ubiquity of active galactic nuclei in red sources at z > 5. Astrophysical
Journal. 2024;964. doi:10.3847/1538-4357/ad1e5f
apa: Greene, J. E., Labbe, I., Goulding, A. D., Furtak, L. J., Chemerynska, I.,
Kokorev, V., … Zitrin, A. (2024). UNCOVER spectroscopy confirms the surprising
ubiquity of active galactic nuclei in red sources at z > 5. Astrophysical
Journal. IOP Publishing. https://doi.org/10.3847/1538-4357/ad1e5f
chicago: Greene, Jenny E., Ivo Labbe, Andy D. Goulding, Lukas J. Furtak, Iryna Chemerynska,
Vasily Kokorev, Pratika Dayal, et al. “UNCOVER Spectroscopy Confirms the Surprising
Ubiquity of Active Galactic Nuclei in Red Sources at z > 5.” Astrophysical
Journal. IOP Publishing, 2024. https://doi.org/10.3847/1538-4357/ad1e5f.
ieee: J. E. Greene et al., “UNCOVER spectroscopy confirms the surprising
ubiquity of active galactic nuclei in red sources at z > 5,” Astrophysical
Journal, vol. 964. IOP Publishing, 2024.
ista: Greene JE, Labbe I, Goulding AD, Furtak LJ, Chemerynska I, Kokorev V, Dayal
P, Volonteri M, Williams CC, Wang B, Setton DJ, Burgasser AJ, Bezanson R, Atek
H, Brammer G, Cutler SE, Feldmann R, Fujimoto S, Glazebrook K, De Graaff A, Khullar
G, Leja J, Marchesini D, Maseda MV, Matthee JJ, Miller TB, Naidu RP, Nanayakkara
T, Oesch PA, Pan R, Papovich C, Price SH, Van Dokkum P, Weaver JR, Whitaker KE,
Zitrin A. 2024. UNCOVER spectroscopy confirms the surprising ubiquity of active
galactic nuclei in red sources at z > 5. Astrophysical Journal. 964, 39.
mla: Greene, Jenny E., et al. “UNCOVER Spectroscopy Confirms the Surprising Ubiquity
of Active Galactic Nuclei in Red Sources at z > 5.” Astrophysical Journal,
vol. 964, 39, IOP Publishing, 2024, doi:10.3847/1538-4357/ad1e5f.
short: J.E. Greene, I. Labbe, A.D. Goulding, L.J. Furtak, I. Chemerynska, V. Kokorev,
P. Dayal, M. Volonteri, C.C. Williams, B. Wang, D.J. Setton, A.J. Burgasser, R.
Bezanson, H. Atek, G. Brammer, S.E. Cutler, R. Feldmann, S. Fujimoto, K. Glazebrook,
A. De Graaff, G. Khullar, J. Leja, D. Marchesini, M.V. Maseda, J.J. Matthee, T.B.
Miller, R.P. Naidu, T. Nanayakkara, P.A. Oesch, R. Pan, C. Papovich, S.H. Price,
P. Van Dokkum, J.R. Weaver, K.E. Whitaker, A. Zitrin, Astrophysical Journal 964
(2024).
date_created: 2024-03-24T23:00:59Z
date_published: 2024-03-01T00:00:00Z
date_updated: 2024-03-25T08:04:13Z
day: '01'
ddc:
- '550'
department:
- _id: JoMa
doi: 10.3847/1538-4357/ad1e5f
external_id:
arxiv:
- '2309.05714'
file:
- access_level: open_access
checksum: 389a880e176799d5c062ea7cb82d08c9
content_type: application/pdf
creator: dernst
date_created: 2024-03-25T08:02:43Z
date_updated: 2024-03-25T08:02:43Z
file_id: '15176'
file_name: 2024_AstrophysicalJourn_Greene.pdf
file_size: 2700137
relation: main_file
success: 1
file_date_updated: 2024-03-25T08:02:43Z
has_accepted_license: '1'
intvolume: ' 964'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
publication: 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: UNCOVER spectroscopy confirms the surprising ubiquity of active galactic nuclei
in red sources at z > 5
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: 964
year: '2024'
...
---
_id: '15168'
abstract:
- lang: eng
text: 'A linearly ordered (LO) k-colouring of a hypergraph is a colouring of its
vertices with colours 1, … , k such that each edge contains a unique maximal colour.
Deciding whether an input hypergraph admits LO k-colouring with a fixed number
of colours is NP-complete (and in the special case of graphs, LO colouring coincides
with the usual graph colouring). Here, we investigate the complexity of approximating
the "linearly ordered chromatic number" of a hypergraph. We prove that the following
promise problem is NP-complete: Given a 3-uniform hypergraph, distinguish between
the case that it is LO 3-colourable, and the case that it is not even LO 4-colourable.
We prove this result by a combination of algebraic, topological, and combinatorial
methods, building on and extending a topological approach for studying approximate
graph colouring introduced by Krokhin, Opršal, Wrochna, and Živný (2023).'
acknowledgement: "Marek Filakovský: This research was supported by Charles University
(project PRIMUS/\r\n21/SCI/014), the Austrian Science Fund (FWF project P31312-N35),
and MSCAfellow5_MUNI\r\n(CZ.02.01.01/00/22_010/0003229). Tamio-Vesa Nakajima: This
research was funded by UKRI EP/X024431/1 and by a Clarendon Fund Scholarship. All
data is provided in full in the results section of this paper. Jakub Opršal: 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.
Uli Wagner: This research was supported by the Austrian Science Fund (FWF project
P31312-N35)."
alternative_title:
- LIPIcs
article_number: '34'
article_processing_charge: No
author:
- first_name: Marek
full_name: Filakovský, Marek
id: 3E8AF77E-F248-11E8-B48F-1D18A9856A87
last_name: Filakovský
- first_name: Tamio Vesa
full_name: Nakajima, Tamio Vesa
last_name: Nakajima
- first_name: Jakub
full_name: Opršal, Jakub
id: ec596741-c539-11ec-b829-c79322a91242
last_name: Opršal
orcid: 0000-0003-1245-3456
- first_name: Gianluca
full_name: Tasinato, Gianluca
id: 0433290C-AF8F-11E9-A4C7-F729E6697425
last_name: Tasinato
- first_name: Uli
full_name: Wagner, Uli
id: 36690CA2-F248-11E8-B48F-1D18A9856A87
last_name: Wagner
orcid: 0000-0002-1494-0568
citation:
ama: 'Filakovský M, Nakajima TV, Opršal J, Tasinato G, Wagner U. Hardness of linearly
ordered 4-colouring of 3-colourable 3-uniform hypergraphs. In: 41st International
Symposium on Theoretical Aspects of Computer Science. Vol 289. Schloss Dagstuhl
- Leibniz-Zentrum für Informatik; 2024. doi:10.4230/LIPIcs.STACS.2024.34'
apa: 'Filakovský, M., Nakajima, T. V., Opršal, J., Tasinato, G., & Wagner, U.
(2024). Hardness of linearly ordered 4-colouring of 3-colourable 3-uniform hypergraphs.
In 41st International Symposium on Theoretical Aspects of Computer Science
(Vol. 289). Clermont-Ferrand, France: Schloss Dagstuhl - Leibniz-Zentrum für Informatik.
https://doi.org/10.4230/LIPIcs.STACS.2024.34'
chicago: Filakovský, Marek, Tamio Vesa Nakajima, Jakub Opršal, Gianluca Tasinato,
and Uli Wagner. “Hardness of Linearly Ordered 4-Colouring of 3-Colourable 3-Uniform
Hypergraphs.” In 41st International Symposium on Theoretical Aspects of Computer
Science, Vol. 289. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2024.
https://doi.org/10.4230/LIPIcs.STACS.2024.34.
ieee: M. Filakovský, T. V. Nakajima, J. Opršal, G. Tasinato, and U. Wagner, “Hardness
of linearly ordered 4-colouring of 3-colourable 3-uniform hypergraphs,” in 41st
International Symposium on Theoretical Aspects of Computer Science, Clermont-Ferrand,
France, 2024, vol. 289.
ista: 'Filakovský M, Nakajima TV, Opršal J, Tasinato G, Wagner U. 2024. Hardness
of linearly ordered 4-colouring of 3-colourable 3-uniform hypergraphs. 41st International
Symposium on Theoretical Aspects of Computer Science. STACS: Symposium on Theoretical
Aspects of Computer Science, LIPIcs, vol. 289, 34.'
mla: Filakovský, Marek, et al. “Hardness of Linearly Ordered 4-Colouring of 3-Colourable
3-Uniform Hypergraphs.” 41st International Symposium on Theoretical Aspects
of Computer Science, vol. 289, 34, Schloss Dagstuhl - Leibniz-Zentrum für
Informatik, 2024, doi:10.4230/LIPIcs.STACS.2024.34.
short: M. Filakovský, T.V. Nakajima, J. Opršal, G. Tasinato, U. Wagner, in:, 41st
International Symposium on Theoretical Aspects of Computer Science, Schloss Dagstuhl
- Leibniz-Zentrum für Informatik, 2024.
conference:
end_date: 2024-03-14
location: Clermont-Ferrand, France
name: 'STACS: Symposium on Theoretical Aspects of Computer Science'
start_date: 2024-03-12
date_created: 2024-03-24T23:00:59Z
date_published: 2024-03-01T00:00:00Z
date_updated: 2024-03-25T07:45:54Z
day: '01'
ddc:
- '510'
department:
- _id: UlWa
doi: 10.4230/LIPIcs.STACS.2024.34
ec_funded: 1
external_id:
arxiv:
- '2312.12981'
file:
- access_level: open_access
checksum: 0524d4189fd1ed08989546511343edf3
content_type: application/pdf
creator: dernst
date_created: 2024-03-25T07:44:30Z
date_updated: 2024-03-25T07:44:30Z
file_id: '15175'
file_name: 2024_LIPICs_Filakovsky.pdf
file_size: 927290
relation: main_file
success: 1
file_date_updated: 2024-03-25T07:44:30Z
has_accepted_license: '1'
intvolume: ' 289'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
project:
- _id: 26611F5C-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: P31312
name: Algorithms for Embeddings and Homotopy Theory
- _id: fc2ed2f7-9c52-11eb-aca3-c01059dda49c
call_identifier: H2020
grant_number: '101034413'
name: 'IST-BRIDGE: International postdoctoral program'
publication: 41st International Symposium on Theoretical Aspects of Computer Science
publication_identifier:
eissn:
- 1868-8969
isbn:
- '9783959773119'
publication_status: published
publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik
quality_controlled: '1'
scopus_import: '1'
status: public
title: Hardness of linearly ordered 4-colouring of 3-colourable 3-uniform hypergraphs
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 289
year: '2024'
...
---
_id: '15164'
abstract:
- lang: eng
text: Primary implant stability, which refers to the stability of the implant during
the initial healing period is a crucial factor in determining the long-term success
of the implant and lays the foundation for secondary implant stability achieved
through osseointegration. Factors affecting primary stability include implant
design, surgical technique, and patient-specific factors like bone quality and
morphology. In vivo, the cyclic nature of anatomical loading puts osteosynthesis
locking screws under dynamic loads, which can lead to the formation of micro cracks
and defects that slowly degrade the mechanical connection between the bone and
screw, thus compromising the initial stability and secondary stability of the
implant. Monotonic quasi-static loading used for testing the holding capacity
of implanted screws is not well suited to capture this behavior since it cannot
capture the progressive deterioration of peri‑implant bone at small displacements.
In order to address this issue, this study aims to determine a critical point
of loss of primary implant stability in osteosynthesis locking screws under cyclic
overloading by investigating the evolution of damage, dissipated energy, and permanent
deformation. A custom-made test setup was used to test implanted 2.5 mm locking
screws under cyclic overloading test. For each loading cycle, maximum forces and
displacement were recorded as well as initial and final cycle displacements and
used to calculate damage and energy dissipation evolution. The results of this
study demonstrate that for axial, shear, and mixed loading significant damage
and energy dissipation can be observed at approximately 20 % of the failure force.
Additionally, at this load level, permanent deformations on the screw-bone interface
were found to be in the range of 50 to 150 mm which promotes osseointegration
and secondary implant stability. This research can assist surgeons in making informed
preoperative decisions by providing a better understanding of the critical point
of loss of primary implant stability, thus improving the long-term success of
the implant and overall patient satisfaction.
acknowledgement: The authors declare no conflict of interest related to this study.
This project was funded by the Gesellschaft fuer Forschungsfoerderung Niederoesterreich
m.b.H. Life Science Call 2017 Grant No. LS17004 and Science call 2019 Dissertationen
Grant No. SC19014. No ethical approval was required for this study.
article_number: '104143'
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Juan D.
full_name: Silva-Henao, Juan D.
last_name: Silva-Henao
- first_name: Sophie
full_name: Schober, Sophie
id: 80b0a0ef-4b9f-11ec-b119-8d9d94c4a1d8
last_name: Schober
- first_name: Dieter H.
full_name: Pahr, Dieter H.
last_name: Pahr
- first_name: Andreas G.
full_name: Reisinger, Andreas G.
last_name: Reisinger
citation:
ama: Silva-Henao JD, Schober S, Pahr DH, Reisinger AG. Critical loss of primary
implant stability in osteosynthesis locking screws under cyclic overloading. Medical
Engineering and Physics. 2024;126. doi:10.1016/j.medengphy.2024.104143
apa: Silva-Henao, J. D., Schober, S., Pahr, D. H., & Reisinger, A. G. (2024).
Critical loss of primary implant stability in osteosynthesis locking screws under
cyclic overloading. Medical Engineering and Physics. Elsevier. https://doi.org/10.1016/j.medengphy.2024.104143
chicago: Silva-Henao, Juan D., Sophie Schober, Dieter H. Pahr, and Andreas G. Reisinger.
“Critical Loss of Primary Implant Stability in Osteosynthesis Locking Screws under
Cyclic Overloading.” Medical Engineering and Physics. Elsevier, 2024. https://doi.org/10.1016/j.medengphy.2024.104143.
ieee: J. D. Silva-Henao, S. Schober, D. H. Pahr, and A. G. Reisinger, “Critical
loss of primary implant stability in osteosynthesis locking screws under cyclic
overloading,” Medical Engineering and Physics, vol. 126. Elsevier, 2024.
ista: Silva-Henao JD, Schober S, Pahr DH, Reisinger AG. 2024. Critical loss of primary
implant stability in osteosynthesis locking screws under cyclic overloading. Medical
Engineering and Physics. 126, 104143.
mla: Silva-Henao, Juan D., et al. “Critical Loss of Primary Implant Stability in
Osteosynthesis Locking Screws under Cyclic Overloading.” Medical Engineering
and Physics, vol. 126, 104143, Elsevier, 2024, doi:10.1016/j.medengphy.2024.104143.
short: J.D. Silva-Henao, S. Schober, D.H. Pahr, A.G. Reisinger, Medical Engineering
and Physics 126 (2024).
date_created: 2024-03-24T23:00:58Z
date_published: 2024-04-01T00:00:00Z
date_updated: 2024-03-25T08:31:01Z
day: '01'
ddc:
- '610'
department:
- _id: PreCl
doi: 10.1016/j.medengphy.2024.104143
file:
- access_level: open_access
checksum: 974acbf2731e7382dcf5920ac762e551
content_type: application/pdf
creator: dernst
date_created: 2024-03-25T08:29:52Z
date_updated: 2024-03-25T08:29:52Z
file_id: '15177'
file_name: 2024_MedEngineeringPhysics_SilvaHenao.pdf
file_size: 10039402
relation: main_file
success: 1
file_date_updated: 2024-03-25T08:29:52Z
has_accepted_license: '1'
intvolume: ' 126'
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
publication: Medical Engineering and Physics
publication_identifier:
eissn:
- 1873-4030
issn:
- 1350-4533
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Critical loss of primary implant stability in osteosynthesis locking screws
under cyclic overloading
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: 126
year: '2024'
...
---
_id: '15167'
abstract:
- lang: eng
text: We perform a diagrammatic analysis of the energy of a mobile impurity immersed
in a strongly interacting two-component Fermi gas to second order in the impurity-bath
interaction. These corrections demonstrate divergent behavior in the limit of
large impurity momentum. We show the fundamental processes responsible for these
logarithmically divergent terms. We study the problem in the general case without
any assumptions regarding the fermion-fermion interactions in the bath. We show
that the divergent term can be summed up to all orders in the Fermi-Fermi interaction
and that the resulting expression is equivalent to the one obtained in the few-body
calculation. Finally, we provide a perturbative calculation to the second order
in the Fermi-Fermi interaction, and we show the diagrams responsible for these
terms.
acknowledgement: We thank Félix Werner and Kris Van Houcke for interesting discussions.
article_number: '033315'
article_processing_charge: No
article_type: original
author:
- first_name: Ragheed
full_name: Al Hyder, Ragheed
id: d1c405be-ae15-11ed-8510-ccf53278162e
last_name: Al Hyder
- first_name: F.
full_name: Chevy, F.
last_name: Chevy
- first_name: X.
full_name: Leyronas, X.
last_name: Leyronas
citation:
ama: Al Hyder R, Chevy F, Leyronas X. Exploring beyond-mean-field logarithmic divergences
in Fermi-polaron energy. Physical Review A. 2024;109(3). doi:10.1103/PhysRevA.109.033315
apa: Al Hyder, R., Chevy, F., & Leyronas, X. (2024). Exploring beyond-mean-field
logarithmic divergences in Fermi-polaron energy. Physical Review A. American
Physical Society. https://doi.org/10.1103/PhysRevA.109.033315
chicago: Al Hyder, Ragheed, F. Chevy, and X. Leyronas. “Exploring Beyond-Mean-Field
Logarithmic Divergences in Fermi-Polaron Energy.” Physical Review A. American
Physical Society, 2024. https://doi.org/10.1103/PhysRevA.109.033315.
ieee: R. Al Hyder, F. Chevy, and X. Leyronas, “Exploring beyond-mean-field logarithmic
divergences in Fermi-polaron energy,” Physical Review A, vol. 109, no.
3. American Physical Society, 2024.
ista: Al Hyder R, Chevy F, Leyronas X. 2024. Exploring beyond-mean-field logarithmic
divergences in Fermi-polaron energy. Physical Review A. 109(3), 033315.
mla: Al Hyder, Ragheed, et al. “Exploring Beyond-Mean-Field Logarithmic Divergences
in Fermi-Polaron Energy.” Physical Review A, vol. 109, no. 3, 033315, American
Physical Society, 2024, doi:10.1103/PhysRevA.109.033315.
short: R. Al Hyder, F. Chevy, X. Leyronas, Physical Review A 109 (2024).
date_created: 2024-03-24T23:00:59Z
date_published: 2024-03-19T00:00:00Z
date_updated: 2024-03-25T07:36:55Z
day: '19'
department:
- _id: MiLe
doi: 10.1103/PhysRevA.109.033315
external_id:
arxiv:
- '2311.14536'
intvolume: ' 109'
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2311.14536
month: '03'
oa: 1
oa_version: Preprint
publication: Physical Review A
publication_identifier:
eissn:
- 2469-9934
issn:
- 2469-9926
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Exploring beyond-mean-field logarithmic divergences in Fermi-polaron energy
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 109
year: '2024'
...
---
_id: '15163'
abstract:
- lang: eng
text: For some k∈Z≥0∪{∞}, we call a linear forest k-bounded if each of its components
has at most k edges. We will say a (k,ℓ)-bounded linear forest decomposition of
a graph G is a partition of E(G) into the edge sets of two linear forests Fk,Fℓ
where Fk is k-bounded and Fℓ is ℓ-bounded. We show that the problem of deciding
whether a given graph has such a decomposition is NP-complete if both k and ℓ
are at least 2, NP-complete if k≥9 and ℓ=1, and is in P for (k,ℓ)=(2,1). Before
this, the only known NP-complete cases were the (2,2) and (3,3) cases. Our hardness
result answers a question of Bermond et al. from 1984. We also show that planar
graphs of girth at least nine decompose into a linear forest and a matching, which
in particular is stronger than 3-edge-colouring such graphs.
acknowledgement: We wish to thank Dániel Marx and András Sebő for making us aware
of the results in [8] and some clarifications on them.
article_number: '113962'
article_processing_charge: No
article_type: original
author:
- first_name: Rutger
full_name: Campbell, Rutger
last_name: Campbell
- first_name: Florian
full_name: Hörsch, Florian
last_name: Hörsch
- first_name: Benjamin
full_name: Moore, Benjamin
id: 6dc1a1be-bf1c-11ed-8d2b-d044840f49d6
last_name: Moore
citation:
ama: Campbell R, Hörsch F, Moore B. Decompositions into two linear forests of bounded
lengths. Discrete Mathematics. 2024;347(6). doi:10.1016/j.disc.2024.113962
apa: Campbell, R., Hörsch, F., & Moore, B. (2024). Decompositions into two linear
forests of bounded lengths. Discrete Mathematics. Elsevier. https://doi.org/10.1016/j.disc.2024.113962
chicago: Campbell, Rutger, Florian Hörsch, and Benjamin Moore. “Decompositions into
Two Linear Forests of Bounded Lengths.” Discrete Mathematics. Elsevier,
2024. https://doi.org/10.1016/j.disc.2024.113962.
ieee: R. Campbell, F. Hörsch, and B. Moore, “Decompositions into two linear forests
of bounded lengths,” Discrete Mathematics, vol. 347, no. 6. Elsevier, 2024.
ista: Campbell R, Hörsch F, Moore B. 2024. Decompositions into two linear forests
of bounded lengths. Discrete Mathematics. 347(6), 113962.
mla: Campbell, Rutger, et al. “Decompositions into Two Linear Forests of Bounded
Lengths.” Discrete Mathematics, vol. 347, no. 6, 113962, Elsevier, 2024,
doi:10.1016/j.disc.2024.113962.
short: R. Campbell, F. Hörsch, B. Moore, Discrete Mathematics 347 (2024).
date_created: 2024-03-24T23:00:58Z
date_published: 2024-03-19T00:00:00Z
date_updated: 2024-03-25T08:09:43Z
day: '19'
department:
- _id: MaKw
doi: 10.1016/j.disc.2024.113962
external_id:
arxiv:
- '2301.11615'
intvolume: ' 347'
issue: '6'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2301.11615
month: '03'
oa: 1
oa_version: Preprint
publication: Discrete Mathematics
publication_identifier:
issn:
- 0012-365X
publication_status: epub_ahead
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Decompositions into two linear forests of bounded lengths
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 347
year: '2024'
...
---
_id: '15180'
abstract:
- lang: eng
text: Characterizing the prevalence and properties of faint active galactic nuclei
(AGNs) in the early Universe is key for understanding the formation of supermassive
black holes (SMBHs) and determining their role in cosmic reionization. We perform
a spectroscopic search for broad Hα emitters at z ≈ 4–6 using deep JWST/NIRCam
imaging and wide field slitless spectroscopy from the EIGER and FRESCO surveys.
We identify 20 Hα lines at z = 4.2–5.5 that have broad components with line widths
from ∼1200–3700 km s−1, contributing ∼30%–90% of the total line flux. We interpret
these broad components as being powered by accretion onto SMBHs with implied masses
∼107–8M⊙. In the UV luminosity range MUV,AGN+host = −21 to −18, we measure number
densities of ≈10−5 cMpc−3. This is an order of magnitude higher than expected
from extrapolating quasar UV luminosity functions (LFs). Yet, such AGN are found
in only <1% of star-forming galaxies at z ∼ 5. The number density discrepancy
is much lower when compared to the broad Hα LF. The SMBH mass function agrees
with large cosmological simulations. In two objects, we detect complex Hα profiles
that we tentatively interpret as caused by absorption signatures from dense gas
fueling SMBH growth and outflows. We may be witnessing early AGN feedback that
will clear dust-free pathways through which more massive blue quasars are seen.
We uncover a strong correlation between reddening and the fraction of total galaxy
luminosity arising from faint AGN. This implies that early SMBH growth is highly
obscured and that faint AGN are only minor contributors to cosmic reionization.
acknowledgement: "We thank the anonymous referee for constructive comments that helped
improve the manuscript. This work is based on observations made with the NASA/ESA/CSA
James Webb Space Telescope. The data were obtained from the Mikulski Archive for
Space Telescopes at the Space Telescope Science Institute, which is operated by
the Association of Universities for Research in Astronomy, Inc., under NASA contract
NAS 5-03127 for JWST. These observations are associated with program Nos. 1243 and
1895. The specific observations analyzed can be accessed via doi:10.17909/4xx0-zj76.
Funded by the European Union (ERC, AGENTS, 101076224). Views and opinions expressed
are however those of the author(s) only and do not necessarily reflect those of
the European Union or the European Research Council. Neither the European Union
nor the granting authority can be held responsible for them. R.P.N. acknowledges
funding from JWST programs GO-1933 and GO-2279. Support for this work for R.P.N.
was provided by NASA through the NASA Hubble Fellowship grant HST-HF2-51515.001-A
awarded by the Space Telescope Science Institute, which is operated by the Association
of Universities for Research in Astronomy, Incorporated, under NASA contract NAS5-26555.
Support for this work for G.I. was provided by NASA through grant JWST-GO-01895
awarded by the Space Telescope Science Institute, which is operated by the Association
of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555.
This work has received funding from the Swiss State Secretariat for Education, Research
and Innovation (SERI) under contract No. MB22.00072, as well as from the Swiss National
Science Foundation (SNSF) through project grant 200020_207349. The Cosmic Dawn Center
(DAWN) is funded by the Danish National Research Foundation under grant No. 140.\r\nFacility:
JWST - James Webb Space Telescope, HST - Hubble Space Telescope satellite\r\nSoftware:
Python, matplotlib (Hunter 2007), numpy (Harris et al. 2020), scipy (Virtanen et
al. 2020), Astropy (Astropy Collaboration et al. 2013, 2018), Imfit (Erwin 2015)."
article_number: '129'
article_processing_charge: Yes
article_type: original
author:
- 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: Rohan P.
full_name: Naidu, Rohan P.
last_name: Naidu
- first_name: Gabriel
full_name: Brammer, Gabriel
last_name: Brammer
- first_name: John
full_name: Chisholm, John
last_name: Chisholm
- first_name: Anna-Christina
full_name: Eilers, Anna-Christina
last_name: Eilers
- first_name: Andy
full_name: Goulding, Andy
last_name: Goulding
- first_name: Jenny
full_name: Greene, Jenny
last_name: Greene
- first_name: Daichi
full_name: Kashino, Daichi
last_name: Kashino
- first_name: Ivo
full_name: Labbe, Ivo
last_name: Labbe
- first_name: Simon J.
full_name: Lilly, Simon J.
last_name: Lilly
- first_name: Ruari
full_name: Mackenzie, Ruari
last_name: Mackenzie
- first_name: Pascal A.
full_name: Oesch, Pascal A.
last_name: Oesch
- first_name: Andrea
full_name: Weibel, Andrea
last_name: Weibel
- first_name: Stijn
full_name: Wuyts, Stijn
last_name: Wuyts
- first_name: Mengyuan
full_name: Xiao, Mengyuan
last_name: Xiao
- first_name: Rongmon
full_name: Bordoloi, Rongmon
last_name: Bordoloi
- first_name: Rychard
full_name: Bouwens, Rychard
last_name: Bouwens
- first_name: Pieter
full_name: van Dokkum, Pieter
last_name: van Dokkum
- first_name: Garth
full_name: Illingworth, Garth
last_name: Illingworth
- first_name: Ivan
full_name: Kramarenko, Ivan
last_name: Kramarenko
- first_name: Michael V.
full_name: Maseda, Michael V.
last_name: Maseda
- first_name: Charlotte
full_name: Mason, Charlotte
last_name: Mason
- first_name: Romain A.
full_name: Meyer, Romain A.
last_name: Meyer
- first_name: Erica J.
full_name: Nelson, Erica J.
last_name: Nelson
- first_name: Naveen A.
full_name: Reddy, Naveen A.
last_name: Reddy
- first_name: Irene
full_name: Shivaei, Irene
last_name: Shivaei
- first_name: Robert A.
full_name: Simcoe, Robert A.
last_name: Simcoe
- first_name: Minghao
full_name: Yue, Minghao
last_name: Yue
citation:
ama: 'Matthee JJ, Naidu RP, Brammer G, et al. Little Red Dots: An abundant population
of faint active galactic nuclei at z ∼ 5 revealed by the EIGER and FRESCO JWST
surveys. The Astrophysical Journal. 2024;963(2). doi:10.3847/1538-4357/ad2345'
apa: 'Matthee, J. J., Naidu, R. P., Brammer, G., Chisholm, J., Eilers, A.-C., Goulding,
A., … Yue, M. (2024). Little Red Dots: An abundant population of faint active
galactic nuclei at z ∼ 5 revealed by the EIGER and FRESCO JWST surveys. The
Astrophysical Journal. American Astronomical Society. https://doi.org/10.3847/1538-4357/ad2345'
chicago: 'Matthee, Jorryt J, Rohan P. Naidu, Gabriel Brammer, John Chisholm, Anna-Christina
Eilers, Andy Goulding, Jenny Greene, et al. “Little Red Dots: An Abundant Population
of Faint Active Galactic Nuclei at z ∼ 5 Revealed by the EIGER and FRESCO JWST
Surveys.” The Astrophysical Journal. American Astronomical Society, 2024.
https://doi.org/10.3847/1538-4357/ad2345.'
ieee: 'J. J. Matthee et al., “Little Red Dots: An abundant population of
faint active galactic nuclei at z ∼ 5 revealed by the EIGER and FRESCO JWST surveys,”
The Astrophysical Journal, vol. 963, no. 2. American Astronomical Society,
2024.'
ista: 'Matthee JJ, Naidu RP, Brammer G, Chisholm J, Eilers A-C, Goulding A, Greene
J, Kashino D, Labbe I, Lilly SJ, Mackenzie R, Oesch PA, Weibel A, Wuyts S, Xiao
M, Bordoloi R, Bouwens R, van Dokkum P, Illingworth G, Kramarenko I, Maseda MV,
Mason C, Meyer RA, Nelson EJ, Reddy NA, Shivaei I, Simcoe RA, Yue M. 2024. Little
Red Dots: An abundant population of faint active galactic nuclei at z ∼ 5 revealed
by the EIGER and FRESCO JWST surveys. The Astrophysical Journal. 963(2), 129.'
mla: 'Matthee, Jorryt J., et al. “Little Red Dots: An Abundant Population of Faint
Active Galactic Nuclei at z ∼ 5 Revealed by the EIGER and FRESCO JWST Surveys.”
The Astrophysical Journal, vol. 963, no. 2, 129, American Astronomical
Society, 2024, doi:10.3847/1538-4357/ad2345.'
short: J.J. Matthee, R.P. Naidu, G. Brammer, J. Chisholm, A.-C. Eilers, A. Goulding,
J. Greene, D. Kashino, I. Labbe, S.J. Lilly, R. Mackenzie, P.A. Oesch, A. Weibel,
S. Wuyts, M. Xiao, R. Bordoloi, R. Bouwens, P. van Dokkum, G. Illingworth, I.
Kramarenko, M.V. Maseda, C. Mason, R.A. Meyer, E.J. Nelson, N.A. Reddy, I. Shivaei,
R.A. Simcoe, M. Yue, The Astrophysical Journal 963 (2024).
date_created: 2024-03-25T08:54:47Z
date_published: 2024-03-07T00:00:00Z
date_updated: 2024-03-25T09:37:27Z
day: '07'
ddc:
- '550'
department:
- _id: JoMa
doi: 10.3847/1538-4357/ad2345
file:
- access_level: open_access
checksum: dc7af4694f9f94a551417ab49fa43edf
content_type: application/pdf
creator: dernst
date_created: 2024-03-25T09:31:58Z
date_updated: 2024-03-25T09:31:58Z
file_id: '15184'
file_name: 2024_AstrophysicalJourn_Matthee.pdf
file_size: 6047536
relation: main_file
success: 1
file_date_updated: 2024-03-25T09:31:58Z
has_accepted_license: '1'
intvolume: ' 963'
issue: '2'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
language:
- iso: eng
month: '03'
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 Astrophysical Journal
publication_identifier:
eissn:
- 1538-4357
issn:
- 0004-637X
publication_status: published
publisher: American Astronomical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Little Red Dots: An abundant population of faint active galactic nuclei at
z ∼ 5 revealed by the EIGER and FRESCO JWST surveys'
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: 963
year: '2024'
...
---
_id: '15179'
abstract:
- lang: eng
text: The fungal bioluminescence pathway can be reconstituted in other organisms
allowing luminescence imaging without exogenously supplied substrate. The pathway
starts from hispidin biosynthesis—a step catalyzed by a large fungal polyketide
synthase that requires a posttranslational modification for activity. Here, we
report identification of alternative compact hispidin synthases encoded by a phylogenetically
diverse group of plants. A hybrid bioluminescence pathway that combines plant
and fungal genes is more compact, not dependent on availability of machinery for
posttranslational modifications, and confers autonomous bioluminescence in yeast,
mammalian, and plant hosts. The compact size of plant hispidin synthases enables
additional modes of delivery of autoluminescence, such as delivery with viral
vectors.
acknowledgement: "We thank Milaboratory (milaboratory.com) for the access to computing
and storage infrastructure. We thank J. Petrasek for providing the BY-2 cell culture
line. We thank Konstantin Lukyanov laboratory and Sergey Deyev laboratory for assistance
with experiments.\r\nThis study was partially funded by Light Bio and Planta. The
Synthetic biology Group is funded by the MRC London Institute of Medical Sciences
(UKRI MC-A658-5QEA0). Cloning and luminescent assays performed in BY-2 were partially
supported by RSF, project number 22-14-00400, https://rscf.ru/project/22-14-00400/.
Plant transformations were funded by RFBR and MOST, project number 21-54-52004.
Plant imaging experiments were funded by RSF, project number 22-74-00124, https://rscf.ru/project/22-74-00124/.
Viral delivery experiments were funded by the grant PID2019-108203RB-I00 Plan Nacional
I + D from the Ministerio de Ciencia e Innovación (Spain) through the Agencia Estatal
de Investigación (cofinanced by the European Regional Development Fund)."
article_number: adk1992
article_processing_charge: Yes
article_type: original
author:
- first_name: Kseniia A.
full_name: Palkina, Kseniia A.
last_name: Palkina
- first_name: Tatiana A.
full_name: Karataeva, Tatiana A.
last_name: Karataeva
- first_name: Maxim M.
full_name: Perfilov, Maxim M.
last_name: Perfilov
- first_name: Liliia I.
full_name: Fakhranurova, Liliia I.
last_name: Fakhranurova
- first_name: Nadezhda M.
full_name: Markina, Nadezhda M.
last_name: Markina
- first_name: Louisa
full_name: Gonzalez Somermeyer, Louisa
id: 4720D23C-F248-11E8-B48F-1D18A9856A87
last_name: Gonzalez Somermeyer
orcid: 0000-0001-9139-5383
- first_name: Elena
full_name: Garcia-Perez, Elena
last_name: Garcia-Perez
- first_name: Marta
full_name: Vazquez-Vilar, Marta
last_name: Vazquez-Vilar
- first_name: Marta
full_name: Rodriguez-Rodriguez, Marta
last_name: Rodriguez-Rodriguez
- first_name: Victor
full_name: Vazquez-Vilriales, Victor
last_name: Vazquez-Vilriales
- first_name: Ekaterina S.
full_name: Shakhova, Ekaterina S.
last_name: Shakhova
- first_name: Tatiana
full_name: Mitiouchkina, Tatiana
last_name: Mitiouchkina
- first_name: Olga A.
full_name: Belozerova, Olga A.
last_name: Belozerova
- first_name: Sergey I.
full_name: Kovalchuk, Sergey I.
last_name: Kovalchuk
- first_name: Anna
full_name: Alekberova, Anna
last_name: Alekberova
- first_name: Alena K.
full_name: Malyshevskaia, Alena K.
last_name: Malyshevskaia
- first_name: Evgenia N.
full_name: Bugaeva, Evgenia N.
last_name: Bugaeva
- first_name: Elena B.
full_name: Guglya, Elena B.
last_name: Guglya
- first_name: Anastasia
full_name: Balakireva, Anastasia
last_name: Balakireva
- first_name: Nikita
full_name: Sytov, Nikita
last_name: Sytov
- first_name: Anastasia
full_name: Bezlikhotnova, Anastasia
last_name: Bezlikhotnova
- first_name: Daria I.
full_name: Boldyreva, Daria I.
last_name: Boldyreva
- first_name: Vladislav V.
full_name: Babenko, Vladislav V.
last_name: Babenko
- first_name: Fyodor
full_name: Kondrashov, Fyodor
id: 44FDEF62-F248-11E8-B48F-1D18A9856A87
last_name: Kondrashov
orcid: 0000-0001-8243-4694
- first_name: Vladimir V.
full_name: Choob, Vladimir V.
last_name: Choob
- first_name: Diego
full_name: Orzaez, Diego
last_name: Orzaez
- first_name: Ilia V.
full_name: Yampolsky, Ilia V.
last_name: Yampolsky
- first_name: Alexander S.
full_name: Mishin, Alexander S.
last_name: Mishin
- first_name: Karen S.
full_name: Sarkisyan, Karen S.
last_name: Sarkisyan
citation:
ama: Palkina KA, Karataeva TA, Perfilov MM, et al. A hybrid pathway for self-sustained
luminescence. Science Advances. 2024;10(10). doi:10.1126/sciadv.adk1992
apa: Palkina, K. A., Karataeva, T. A., Perfilov, M. M., Fakhranurova, L. I., Markina,
N. M., Gonzalez Somermeyer, L., … Sarkisyan, K. S. (2024). A hybrid pathway for
self-sustained luminescence. Science Advances. American Association for
the Advancement of Science. https://doi.org/10.1126/sciadv.adk1992
chicago: Palkina, Kseniia A., Tatiana A. Karataeva, Maxim M. Perfilov, Liliia I.
Fakhranurova, Nadezhda M. Markina, Louisa Gonzalez Somermeyer, Elena Garcia-Perez,
et al. “A Hybrid Pathway for Self-Sustained Luminescence.” Science Advances.
American Association for the Advancement of Science, 2024. https://doi.org/10.1126/sciadv.adk1992.
ieee: K. A. Palkina et al., “A hybrid pathway for self-sustained luminescence,”
Science Advances, vol. 10, no. 10. American Association for the Advancement
of Science, 2024.
ista: Palkina KA, Karataeva TA, Perfilov MM, Fakhranurova LI, Markina NM, Gonzalez
Somermeyer L, Garcia-Perez E, Vazquez-Vilar M, Rodriguez-Rodriguez M, Vazquez-Vilriales
V, Shakhova ES, Mitiouchkina T, Belozerova OA, Kovalchuk SI, Alekberova A, Malyshevskaia
AK, Bugaeva EN, Guglya EB, Balakireva A, Sytov N, Bezlikhotnova A, Boldyreva DI,
Babenko VV, Kondrashov F, Choob VV, Orzaez D, Yampolsky IV, Mishin AS, Sarkisyan
KS. 2024. A hybrid pathway for self-sustained luminescence. Science Advances.
10(10), adk1992.
mla: Palkina, Kseniia A., et al. “A Hybrid Pathway for Self-Sustained Luminescence.”
Science Advances, vol. 10, no. 10, adk1992, American Association for the
Advancement of Science, 2024, doi:10.1126/sciadv.adk1992.
short: K.A. Palkina, T.A. Karataeva, M.M. Perfilov, L.I. Fakhranurova, N.M. Markina,
L. Gonzalez Somermeyer, E. Garcia-Perez, M. Vazquez-Vilar, M. Rodriguez-Rodriguez,
V. Vazquez-Vilriales, E.S. Shakhova, T. Mitiouchkina, O.A. Belozerova, S.I. Kovalchuk,
A. Alekberova, A.K. Malyshevskaia, E.N. Bugaeva, E.B. Guglya, A. Balakireva, N.
Sytov, A. Bezlikhotnova, D.I. Boldyreva, V.V. Babenko, F. Kondrashov, V.V. Choob,
D. Orzaez, I.V. Yampolsky, A.S. Mishin, K.S. Sarkisyan, Science Advances 10 (2024).
date_created: 2024-03-25T08:54:33Z
date_published: 2024-03-01T00:00:00Z
date_updated: 2024-03-25T09:44:53Z
day: '01'
ddc:
- '580'
department:
- _id: FyKo
doi: 10.1126/sciadv.adk1992
file:
- access_level: open_access
checksum: a19c43b260ea0bbaf895a29712e3153c
content_type: application/pdf
creator: dernst
date_created: 2024-03-25T09:42:10Z
date_updated: 2024-03-25T09:42:10Z
file_id: '15185'
file_name: 2024_ScienceAdv_Palkina.pdf
file_size: 1499302
relation: main_file
success: 1
file_date_updated: 2024-03-25T09:42:10Z
has_accepted_license: '1'
intvolume: ' 10'
issue: '10'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
publication: Science Advances
publication_identifier:
issn:
- 2375-2548
publication_status: published
publisher: American Association for the Advancement of Science
quality_controlled: '1'
scopus_import: '1'
status: public
title: A hybrid pathway for self-sustained luminescence
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: 10
year: '2024'
...