---
_id: '14845'
abstract:
- lang: eng
text: We study a linear rotor in a bosonic bath within the angulon formalism. Our
focus is on systems where isotropic or anisotropic impurity-boson interactions
support a shallow bound state. To study the fate of the angulon in the vicinity
of bound-state formation, we formulate a beyond-linear-coupling angulon Hamiltonian.
First, we use it to study attractive, spherically symmetric impurity-boson interactions
for which the linear rotor can be mapped onto a static impurity. The well-known
polaron formalism provides an adequate description in this limit. Second, we consider
anisotropic potentials, and show that the presence of a shallow bound state with
pronounced anisotropic character leads to a many-body instability that washes
out the angulon dynamics.
acknowledgement: "We would like to thank G. Bighin, I. Cherepanov, E. Paerschke, and
E. Yakaboylu for insightful discussions on a wide range of topics. This work has
been supported by the European Research Council (ERC) Starting Grant No. 801770
(ANGULON). A.G. and A.G.V. acknowledge support from the European Union’s Horizon
2020 research and innovation\r\nprogram under the Marie Skłodowska-Curie Grant Agreement
No. 754411. Numerical calculations were performed on the Euler cluster managed by
the HPC team at ETH Zurich.\r\nR.S. acknowledges support by the Deutsche Forschungsgemeinschaft
under Germany’s Excellence Strategy Grant No. EXC 2181/1-390900948 (the Heidelberg
STRUCTURES Excellence Cluster). T.D. acknowledges support from the Isaac Newton
Studentship and the Science and Technology Facilities Council under Grant No. ST/V50659X/1."
article_number: '014102'
article_processing_charge: No
article_type: original
author:
- first_name: Tibor
full_name: Dome, Tibor
id: 7e3293e2-b9dc-11ee-97a9-cd73400f6994
last_name: Dome
orcid: 0000-0003-2586-3702
- first_name: Artem
full_name: Volosniev, Artem
id: 37D278BC-F248-11E8-B48F-1D18A9856A87
last_name: Volosniev
orcid: 0000-0003-0393-5525
- first_name: Areg
full_name: Ghazaryan, Areg
id: 4AF46FD6-F248-11E8-B48F-1D18A9856A87
last_name: Ghazaryan
orcid: 0000-0001-9666-3543
- first_name: Laleh
full_name: Safari, Laleh
id: 3C325E5E-F248-11E8-B48F-1D18A9856A87
last_name: Safari
- first_name: Richard
full_name: Schmidt, Richard
last_name: Schmidt
- first_name: Mikhail
full_name: Lemeshko, Mikhail
id: 37CB05FA-F248-11E8-B48F-1D18A9856A87
last_name: Lemeshko
orcid: 0000-0002-6990-7802
citation:
ama: Dome T, Volosniev A, Ghazaryan A, Safari L, Schmidt R, Lemeshko M. Linear rotor
in an ideal Bose gas near the threshold for binding. Physical Review B.
2024;109(1). doi:10.1103/PhysRevB.109.014102
apa: Dome, T., Volosniev, A., Ghazaryan, A., Safari, L., Schmidt, R., & Lemeshko,
M. (2024). Linear rotor in an ideal Bose gas near the threshold for binding. Physical
Review B. American Physical Society. https://doi.org/10.1103/PhysRevB.109.014102
chicago: Dome, Tibor, Artem Volosniev, Areg Ghazaryan, Laleh Safari, Richard Schmidt,
and Mikhail Lemeshko. “Linear Rotor in an Ideal Bose Gas near the Threshold for
Binding.” Physical Review B. American Physical Society, 2024. https://doi.org/10.1103/PhysRevB.109.014102.
ieee: T. Dome, A. Volosniev, A. Ghazaryan, L. Safari, R. Schmidt, and M. Lemeshko,
“Linear rotor in an ideal Bose gas near the threshold for binding,” Physical
Review B, vol. 109, no. 1. American Physical Society, 2024.
ista: Dome T, Volosniev A, Ghazaryan A, Safari L, Schmidt R, Lemeshko M. 2024. Linear
rotor in an ideal Bose gas near the threshold for binding. Physical Review B.
109(1), 014102.
mla: Dome, Tibor, et al. “Linear Rotor in an Ideal Bose Gas near the Threshold for
Binding.” Physical Review B, vol. 109, no. 1, 014102, American Physical
Society, 2024, doi:10.1103/PhysRevB.109.014102.
short: T. Dome, A. Volosniev, A. Ghazaryan, L. Safari, R. Schmidt, M. Lemeshko,
Physical Review B 109 (2024).
date_created: 2024-01-21T23:00:57Z
date_published: 2024-01-01T00:00:00Z
date_updated: 2024-01-23T10:51:09Z
day: '01'
department:
- _id: MiLe
doi: 10.1103/PhysRevB.109.014102
ec_funded: 1
intvolume: ' 109'
issue: '1'
language:
- iso: eng
month: '01'
oa_version: None
project:
- _id: 2688CF98-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '801770'
name: 'Angulon: physics and applications of a new quasiparticle'
- _id: 260C2330-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
publication: Physical Review B
publication_identifier:
eissn:
- 2469-9969
issn:
- 2469-9950
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Linear rotor in an ideal Bose gas near the threshold for binding
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 109
year: '2024'
...
---
_id: '14852'
abstract:
- lang: eng
text: The physical conditions giving rise to high escape fractions of ionizing radiation
(LyC fesc) in star-forming galaxies – most likely protagonists of cosmic reionization
– are not yet fully understood. Using the VLT/MUSE observations of ∼1400 Ly α
emitters at 2.9 < z < 6.7, we compare stacked rest-frame UV spectra
of candidates for LyC leakers and non-leakers selected based on their Ly α profiles.
We find that the stacks of potential LyC leakers, i.e. galaxies with narrow, symmetric
Ly α profiles with small peak separation, generally show (i) strong nebular O iii]λ1666,
[Si iii]λ1883, and [C iii]λ1907 +C iii]λ1909 emission, indicating a high-ionization
state of the interstellar medium (ISM); (ii) high equivalent widths of He iiλ1640
(∼1 − 3 Å), suggesting the presence of hard ionizing radiation fields; (iii) Si ii*λ1533
emission, revealing substantial amounts of neutral hydrogen off the line of sight;
(iv) high C ivλλ1548,1550 to [C iii]λ1907 +C iii]λ1909 ratios (C iv/C iii] ≳0.75)
, signalling the presence of low column density channels in the ISM. In contrast,
the stacks with broad, asymmetric Ly α profiles with large peak separation show
weak nebular emission lines, low He iiλ1640 equivalent widths (≲1 Å), and low
C iv/C iii] (≲0.25), implying low-ionization states and high-neutral hydrogen
column densities. Our results suggest that C iv/C iii] might be sensitive to the
physical conditions that govern LyC photon escape, providing a promising tool
for identification of ionizing sources among star-forming galaxies in the epoch
of reionization.
acknowledgement: 'We thank the anonymous referee for the constructive feedback that
helped to improve the manuscript. We thank Michael Maseda, Daniel Schaerer, Charlotte
Simmonds, and Rashmi Gottumukkala for useful comments and productive discussions.
We also thank the organizers and participants of the 24th MUSE Science Busy Week
in Leiden. IGK acknowledges an Excellence Master Fellowship granted by the Faculty
of Science of the University of Geneva. 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 number 200020_207349 and SNSF Professorship grant number 190079.
The Cosmic Dawn Center (DAWN) is funded by the Danish National Research Foundation
under grant number 140. This paper is based on observations collected at the European
Organisation for Astronomical Research in the Southern Hemisphere under ESO programmes
094.A-0289(B), 095.A-0010(A), 096.A-0045(A), 096.A-0045(B), 094.A-0205, 095.A-0240,
096.A-0090, 097.A-0160, and 098.A-0017. We made extensive use of several open-source
software packages and we are thankful to the respective authors for sharing their
work: NUMPY (Harris et al. 2020), ASTROPY (Astropy Collaboration 2022), MATPLOTLIB
(Hunter 2007), IPYTHON (Perez & Granger 2007), and TOPCAT (Taylor 2005).'
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Ivan
full_name: Kramarenko, Ivan
id: 9a9394cb-3200-11ee-973b-f5ba2a8b16e4
last_name: Kramarenko
- first_name: J
full_name: Kerutt, J
last_name: Kerutt
- first_name: A
full_name: Verhamme, A
last_name: Verhamme
- first_name: P A
full_name: Oesch, P A
last_name: Oesch
- first_name: L
full_name: Barrufet, L
last_name: Barrufet
- 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: H
full_name: Kusakabe, H
last_name: Kusakabe
- first_name: I
full_name: Goovaerts, I
last_name: Goovaerts
- first_name: T T
full_name: Thai, T T
last_name: Thai
citation:
ama: Kramarenko I, Kerutt J, Verhamme A, et al. Linking UV spectral properties of
MUSE Ly α emitters at z ≳ 3 to Lyman continuum escape. Monthly Notices
of the Royal Astronomical Society. 2024;527(4):9853-9871. doi:10.1093/mnras/stad3853
apa: Kramarenko, I., Kerutt, J., Verhamme, A., Oesch, P. A., Barrufet, L., Matthee,
J. J., … Thai, T. T. (2024). Linking UV spectral properties of MUSE Ly α emitters
at z ≳ 3 to Lyman continuum escape. Monthly Notices of the Royal Astronomical
Society. Oxford University Press. https://doi.org/10.1093/mnras/stad3853
chicago: Kramarenko, Ivan, J Kerutt, A Verhamme, P A Oesch, L Barrufet, Jorryt J
Matthee, H Kusakabe, I Goovaerts, and T T Thai. “Linking UV Spectral Properties
of MUSE Ly α Emitters at z ≳ 3 to Lyman Continuum Escape.” Monthly Notices
of the Royal Astronomical Society. Oxford University Press, 2024. https://doi.org/10.1093/mnras/stad3853.
ieee: I. Kramarenko et al., “Linking UV spectral properties of MUSE Ly α
emitters at z ≳ 3 to Lyman continuum escape,” Monthly Notices of the
Royal Astronomical Society, vol. 527, no. 4. Oxford University Press, pp.
9853–9871, 2024.
ista: Kramarenko I, Kerutt J, Verhamme A, Oesch PA, Barrufet L, Matthee JJ, Kusakabe
H, Goovaerts I, Thai TT. 2024. Linking UV spectral properties of MUSE Ly α emitters
at z ≳ 3 to Lyman continuum escape. Monthly Notices of the Royal Astronomical
Society. 527(4), 9853–9871.
mla: Kramarenko, Ivan, et al. “Linking UV Spectral Properties of MUSE Ly α Emitters
at z ≳ 3 to Lyman Continuum Escape.” Monthly Notices of the Royal Astronomical
Society, vol. 527, no. 4, Oxford University Press, 2024, pp. 9853–71, doi:10.1093/mnras/stad3853.
short: I. Kramarenko, J. Kerutt, A. Verhamme, P.A. Oesch, L. Barrufet, J.J. Matthee,
H. Kusakabe, I. Goovaerts, T.T. Thai, Monthly Notices of the Royal Astronomical
Society 527 (2024) 9853–9871.
date_created: 2024-01-22T08:22:17Z
date_published: 2024-02-01T00:00:00Z
date_updated: 2024-01-23T12:33:50Z
day: '01'
ddc:
- '520'
department:
- _id: GradSch
- _id: JoMa
doi: 10.1093/mnras/stad3853
external_id:
arxiv:
- '2305.07044'
file:
- access_level: open_access
checksum: 9d02df4035c4951cf63dee0db1e462e9
content_type: application/pdf
creator: dernst
date_created: 2024-01-23T12:30:45Z
date_updated: 2024-01-23T12:30:45Z
file_id: '14879'
file_name: 2024_MNAstronomSoc_Kramarenko.pdf
file_size: 4521738
relation: main_file
success: 1
file_date_updated: 2024-01-23T12:30:45Z
has_accepted_license: '1'
intvolume: ' 527'
issue: '4'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
page: 9853-9871
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
eissn:
- 1365-2966
issn:
- 0035-8711
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
status: public
title: Linking UV spectral properties of MUSE Ly α emitters at z ≳ 3 to Lyman
continuum escape
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: 527
year: '2024'
...
---
_id: '14850'
abstract:
- lang: eng
text: Elaborate sexual signals are thought to have evolved and be maintained to
serve as honest indicators of signaller quality. One measure of quality is health,
which can be affected by parasite infection. Cnemaspis mysoriensis is a diurnal
gecko that is often infested with ectoparasites in the wild, and males of this
species express visual (coloured gular patches) and chemical (femoral gland secretions)
traits that receivers could assess during social interactions. In this paper,
we tested whether ectoparasites affect individual health, and whether signal quality
is an indicator of ectoparasite levels. In wild lizards, we found that ectoparasite
level was negatively correlated with body condition in both sexes. Moreover, some
characteristics of both visual and chemical traits in males were strongly associated
with ectoparasite levels. Specifically, males with higher ectoparasite levels
had yellow gular patches with lower brightness and chroma, and chemical secretions
with a lower proportion of aromatic compounds. We then determined whether ectoparasite
levels in males influence female behaviour. Using sequential choice trials, wherein
females were provided with either the visual or the chemical signals of wild-caught
males that varied in ectoparasite level, we found that only chemical secretions
evoked an elevated female response towards less parasitised males. Simultaneous
choice trials in which females were exposed to the chemical secretions from males
that varied in parasite level further confirmed a preference for males with lower
parasites loads. Overall, we find that although health (body condition) or ectoparasite
load can be honestly advertised through multiple modalities, the parasite-mediated
female response is exclusively driven by chemical signals.
acknowledgement: "We thank Anuradha Batabyal and Shakilur Kabir for scientific discussions,
and help with sampling and colour analyses. We thank Muralidhar and the central
LCMS facility of the IISc for their technical support with the GCMS.\r\nResearch
funding was provided by the Department of Science and Technology Fund for Improvement
of S&T Infrastructure (DST-FIST), the Department of Biotechnology-Indian Institute
of Science (DBT-IISc) partnership program and a Science and Engineering Research
Board (SERB) grant to M.T. (EMR/2017/002228). Open Access funding provided by Indian
Institute of Science. Deposited in PMC for immediate release."
article_number: jeb246217
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Arka
full_name: Pal, Arka
id: 6AAB2240-CA9A-11E9-9C1A-D9D1E5697425
last_name: Pal
orcid: 0000-0002-4530-8469
- first_name: Mihir
full_name: Joshi, Mihir
last_name: Joshi
- first_name: Maria
full_name: Thaker, Maria
last_name: Thaker
citation:
ama: Pal A, Joshi M, Thaker M. Too much information? Males convey parasite levels
using more signal modalities than females utilise. Journal of Experimental
Biology. 2024;227(1). doi:10.1242/jeb.246217
apa: Pal, A., Joshi, M., & Thaker, M. (2024). Too much information? Males convey
parasite levels using more signal modalities than females utilise. Journal
of Experimental Biology. The Company of Biologists. https://doi.org/10.1242/jeb.246217
chicago: Pal, Arka, Mihir Joshi, and Maria Thaker. “Too Much Information? Males
Convey Parasite Levels Using More Signal Modalities than Females Utilise.” Journal
of Experimental Biology. The Company of Biologists, 2024. https://doi.org/10.1242/jeb.246217.
ieee: A. Pal, M. Joshi, and M. Thaker, “Too much information? Males convey parasite
levels using more signal modalities than females utilise,” Journal of Experimental
Biology, vol. 227, no. 1. The Company of Biologists, 2024.
ista: Pal A, Joshi M, Thaker M. 2024. Too much information? Males convey parasite
levels using more signal modalities than females utilise. Journal of Experimental
Biology. 227(1), jeb246217.
mla: Pal, Arka, et al. “Too Much Information? Males Convey Parasite Levels Using
More Signal Modalities than Females Utilise.” Journal of Experimental Biology,
vol. 227, no. 1, jeb246217, The Company of Biologists, 2024, doi:10.1242/jeb.246217.
short: A. Pal, M. Joshi, M. Thaker, Journal of Experimental Biology 227 (2024).
date_created: 2024-01-22T08:14:49Z
date_published: 2024-01-10T00:00:00Z
date_updated: 2024-01-23T12:13:08Z
day: '10'
ddc:
- '570'
department:
- _id: NiBa
doi: 10.1242/jeb.246217
external_id:
pmid:
- '38054353'
file:
- access_level: open_access
checksum: 136325372f6f45abaa62a71e2d23bfb6
content_type: application/pdf
creator: dernst
date_created: 2024-01-23T12:08:24Z
date_updated: 2024-01-23T12:08:24Z
file_id: '14877'
file_name: 2024_JourExperimBiology_Pal.pdf
file_size: 594128
relation: main_file
success: 1
file_date_updated: 2024-01-23T12:08:24Z
has_accepted_license: '1'
intvolume: ' 227'
issue: '1'
keyword:
- Insect Science
- Molecular Biology
- Animal Science and Zoology
- Aquatic Science
- Physiology
- Ecology
- Evolution
- Behavior and Systematics
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
pmid: 1
publication: Journal of Experimental Biology
publication_identifier:
eissn:
- 0022-0949
issn:
- 1477-9145
publication_status: published
publisher: The Company of Biologists
quality_controlled: '1'
related_material:
link:
- relation: software
url: https://github.com/arka-pal/Cnemaspis-SexualSignaling
status: public
title: Too much information? Males convey parasite levels using more signal modalities
than females utilise
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: 227
year: '2024'
...
---
_id: '14711'
abstract:
- lang: eng
text: "In nature, different species find their niche in a range of environments,
each with its unique characteristics. While some thrive in uniform (homogeneous)
landscapes where environmental conditions stay relatively consistent across space,
others traverse the complexities of spatially heterogeneous terrains. Comprehending
how species are distributed and how they interact within these landscapes holds
the key to gaining insights into their evolutionary dynamics while also informing
conservation and management strategies.\r\n\r\nFor species inhabiting heterogeneous
landscapes, when the rate of dispersal is low compared to spatial fluctuations
in selection pressure, localized adaptations may emerge. Such adaptation in response
to varying selection strengths plays an important role in the persistence of populations
in our rapidly changing world. Hence, species in nature are continuously in a
struggle to adapt to local environmental conditions, to ensure their continued
survival. Natural populations can often adapt in time scales short enough for
evolutionary changes to influence ecological dynamics and vice versa, thereby
creating a feedback between evolution and demography. The analysis of this feedback
and the relative contributions of gene flow, demography, drift, and natural selection
to genetic variation and differentiation has remained a recurring theme in evolutionary
biology. Nevertheless, the effective role of these forces in maintaining variation
and shaping patterns of diversity is not fully understood. Even in homogeneous
environments devoid of local adaptations, such understanding remains elusive.
Understanding this feedback is crucial, for example in determining the conditions
under which extinction risk can be mitigated in peripheral populations subject
to deleterious mutation accumulation at the edges of species’ ranges\r\nas well
as in highly fragmented populations.\r\n\r\nIn this thesis we explore both uniform
and spatially heterogeneous metapopulations, investigating and providing theoretical
insights into the dynamics of local adaptation in the latter and examining the
dynamics of load and extinction as well as the impact of joint ecological and
evolutionary (eco-evolutionary) dynamics in the former. The thesis is divided
into 5 chapters.\r\n\r\nChapter 1 provides a general introduction into the subject
matter, clarifying concepts and ideas used throughout the thesis. In chapter 2,
we explore how fast a species distributed across a heterogeneous landscape adapts
to changing conditions marked by alterations in carrying capacity, selection pressure,
and migration rate.\r\n\r\nIn chapter 3, we investigate how migration selection
and drift influences adaptation and the maintenance of variation in a metapopulation
with three habitats, an extension of previous models of adaptation in two habitats.
We further develop analytical approximations for the critical threshold required
for polymorphism to persist.\r\n\r\nThe focus of chapter 4 of the thesis is on
understanding the interplay between ecology and evolution as coupled processes.
We investigate how eco-evolutionary feedback between migration, selection, drift,
and demography influences eco-evolutionary outcomes in marginal populations subject
to deleterious mutation accumulation. Using simulations as well as theoretical
approximations of the coupled dynamics of population size and allele frequency,
we analyze how gene flow from a large mainland source influences genetic load
and population size on an island (i.e., in a marginal population) under genetically
realistic assumptions. Analyses of this sort are important because small isolated
populations, are repeatedly affected by complex interactions between ecological
and evolutionary processes, which can lead to their death. Understanding these
interactions can therefore provide an insight into the conditions under which
extinction risk can be mitigated in peripheral populations thus, contributing
to conservation and restoration efforts.\r\n\r\nChapter 5 extends the analysis
in chapter 4 to consider the dynamics of load (due to deleterious mutation accumulation)
and extinction risk in a metapopulation. We explore the role of gene flow, selection,
and dominance on load and extinction risk and further pinpoint critical thresholds
required for metapopulation persistence.\r\n\r\nOverall this research contributes
to our understanding of ecological and evolutionary mechanisms that shape species’
persistence in fragmented landscapes, a crucial foundation for successful conservation
efforts and biodiversity management."
acknowledged_ssus:
- _id: SSU
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Oluwafunmilola O
full_name: Olusanya, Oluwafunmilola O
id: 41AD96DC-F248-11E8-B48F-1D18A9856A87
last_name: Olusanya
orcid: 0000-0003-1971-8314
citation:
ama: Olusanya OO. Local adaptation, genetic load and extinction in metapopulations.
2024. doi:10.15479/at:ista:14711
apa: Olusanya, O. O. (2024). Local adaptation, genetic load and extinction in
metapopulations. Institute of Science and Technology Austria. https://doi.org/10.15479/at:ista:14711
chicago: Olusanya, Oluwafunmilola O. “Local Adaptation, Genetic Load and Extinction
in Metapopulations.” Institute of Science and Technology Austria, 2024. https://doi.org/10.15479/at:ista:14711.
ieee: O. O. Olusanya, “Local adaptation, genetic load and extinction in metapopulations,”
Institute of Science and Technology Austria, 2024.
ista: Olusanya OO. 2024. Local adaptation, genetic load and extinction in metapopulations.
Institute of Science and Technology Austria.
mla: Olusanya, Oluwafunmilola O. Local Adaptation, Genetic Load and Extinction
in Metapopulations. Institute of Science and Technology Austria, 2024, doi:10.15479/at:ista:14711.
short: O.O. Olusanya, Local Adaptation, Genetic Load and Extinction in Metapopulations,
Institute of Science and Technology Austria, 2024.
date_created: 2023-12-26T22:49:53Z
date_published: 2024-01-19T00:00:00Z
date_updated: 2024-01-26T12:00:54Z
day: '19'
ddc:
- '576'
degree_awarded: PhD
department:
- _id: NiBa
- _id: GradSch
doi: 10.15479/at:ista:14711
ec_funded: 1
file:
- access_level: closed
checksum: de179b1c6758f182ff0c70d8b38c1501
content_type: application/zip
creator: oolusany
date_created: 2024-01-03T18:30:13Z
date_updated: 2024-01-03T18:30:13Z
file_id: '14730'
file_name: FinalSubmission_Thesis_OLUSANYA.zip
file_size: 16986244
relation: source_file
- access_level: open_access
checksum: 0e331585e3cd4823320aab4e69e64ccf
content_type: application/pdf
creator: oolusany
date_created: 2024-01-03T18:31:34Z
date_updated: 2024-01-03T18:31:34Z
file_id: '14731'
file_name: FinalSubmission2_Thesis_OLUSANYA.pdf
file_size: 6460403
relation: main_file
success: 1
file_date_updated: 2024-01-03T18:31:34Z
has_accepted_license: '1'
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc-sa/4.0/
month: '01'
oa: 1
oa_version: Published Version
page: '183'
project:
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '665385'
name: International IST Doctoral Program
- _id: c08d3278-5a5b-11eb-8a69-fdb09b55f4b8
grant_number: P32896
name: Causes and consequences of population fragmentation
- _id: 34c872fe-11ca-11ed-8bc3-8534b82131e6
grant_number: '26380'
name: Polygenic Adaptation in a Metapopulation
publication_identifier:
issn:
- 2663 - 337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
record:
- id: '10658'
relation: part_of_dissertation
status: public
- id: '10787'
relation: part_of_dissertation
status: public
- id: '14732'
relation: part_of_dissertation
status: public
status: public
supervisor:
- first_name: Nicholas H
full_name: Barton, Nicholas H
id: 4880FE40-F248-11E8-B48F-1D18A9856A87
last_name: Barton
orcid: 0000-0002-8548-5240
- first_name: Jitka
full_name: Polechova, Jitka
last_name: Polechova
- first_name: Himani
full_name: Sachdeva, Himani
last_name: Sachdeva
title: Local adaptation, genetic load and extinction in metapopulations
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: '14888'
abstract:
- lang: eng
text: 'A face in a curve arrangement is called popular if it is bounded by the same
curve multiple times. Motivated by the automatic generation of curved nonogram
puzzles, we investigate possibilities to eliminate the popular faces in an arrangement
by inserting a single additional curve. This turns out to be NP-hard; however,
it becomes tractable when the number of popular faces is small: We present a probabilistic
FPT-approach in the number of popular faces.'
acknowledgement: 'This work was initiated at the 16th European Research Week on Geometric
Graphs in Strobl in 2019. A.W. is supported by the Austrian Science Fund (FWF):
W1230. S.T. has been funded by the Vienna Science and Technology Fund (WWTF) [10.47379/ICT19035].
A preliminary version of this work has been presented at the 38th European Workshop
on Computational Geometry (EuroCG 2022) in Perugia [9]. A full version of this paper,
which includes appendices but is otherwise identical, is available as a technical
report [10].'
alternative_title:
- LNCS
article_processing_charge: No
author:
- first_name: Phoebe
full_name: De Nooijer, Phoebe
last_name: De Nooijer
- first_name: Soeren
full_name: Terziadis, Soeren
last_name: Terziadis
- first_name: Alexandra
full_name: Weinberger, Alexandra
last_name: Weinberger
- first_name: Zuzana
full_name: Masárová, Zuzana
id: 45CFE238-F248-11E8-B48F-1D18A9856A87
last_name: Masárová
orcid: 0000-0002-6660-1322
- first_name: Tamara
full_name: Mchedlidze, Tamara
last_name: Mchedlidze
- first_name: Maarten
full_name: Löffler, Maarten
last_name: Löffler
- first_name: Günter
full_name: Rote, Günter
last_name: Rote
citation:
ama: 'De Nooijer P, Terziadis S, Weinberger A, et al. Removing popular faces in curve
arrangements. In: 31st International Symposium on Graph Drawing and Network
Visualization. Vol 14466. Springer Nature; 2024:18-33. doi:10.1007/978-3-031-49275-4_2'
apa: 'De Nooijer, P., Terziadis, S., Weinberger, A., Masárová, Z., Mchedlidze, T.,
Löffler, M., & Rote, G. (2024). Removing popular faces in curve arrangements.
In 31st International Symposium on Graph Drawing and Network Visualization
(Vol. 14466, pp. 18–33). Isola delle Femmine, Palermo, Italy: Springer Nature.
https://doi.org/10.1007/978-3-031-49275-4_2'
chicago: De Nooijer, Phoebe, Soeren Terziadis, Alexandra Weinberger, Zuzana Masárová,
Tamara Mchedlidze, Maarten Löffler, and Günter Rote. “Removing Popular Faces in Curve
Arrangements.” In 31st International Symposium on Graph Drawing and Network
Visualization, 14466:18–33. Springer Nature, 2024. https://doi.org/10.1007/978-3-031-49275-4_2.
ieee: P. De Nooijer et al., “Removing popular faces in curve arrangements,”
in 31st International Symposium on Graph Drawing and Network Visualization,
Isola delle Femmine, Palermo, Italy, 2024, vol. 14466, pp. 18–33.
ista: 'De Nooijer P, Terziadis S, Weinberger A, Masárová Z, Mchedlidze T, Löffler
M, Rote G. 2024. Removing popular faces in curve arrangements. 31st International
Symposium on Graph Drawing and Network Visualization. GD: Graph Drawing and Network
Visualization, LNCS, vol. 14466, 18–33.'
mla: De Nooijer, Phoebe, et al. “Removing Popular Faces in Curve Arrangements.”
31st International Symposium on Graph Drawing and Network Visualization,
vol. 14466, Springer Nature, 2024, pp. 18–33, doi:10.1007/978-3-031-49275-4_2.
short: P. De Nooijer, S. Terziadis, A. Weinberger, Z. Masárová, T. Mchedlidze, M.
Löffler, G. Rote, in:, 31st International Symposium on Graph Drawing and Network
Visualization, Springer Nature, 2024, pp. 18–33.
conference:
end_date: 2023-09-22
location: Isola delle Femmine, Palermo, Italy
name: 'GD: Graph Drawing and Network Visualization'
start_date: 2023-09-20
date_created: 2024-01-28T23:01:43Z
date_published: 2024-01-06T00:00:00Z
date_updated: 2024-01-29T09:45:06Z
day: '06'
department:
- _id: UlWa
- _id: HeEd
doi: 10.1007/978-3-031-49275-4_2
external_id:
arxiv:
- '2202.12175'
intvolume: ' 14466'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2202.12175
month: '01'
oa: 1
oa_version: Preprint
page: 18-33
publication: 31st International Symposium on Graph Drawing and Network Visualization
publication_identifier:
eissn:
- 1611-3349
isbn:
- '9783031492747'
issn:
- 0302-9743
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Removing popular faces in curve arrangements
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 14466
year: '2024'
...
---
_id: '14887'
abstract:
- lang: eng
text: 'Episodic memories are encoded by experience-activated neuronal ensembles
that remain necessary and sufficient for recall. However, the temporal evolution
of memory engrams after initial encoding is unclear. In this study, we employed
computational and experimental approaches to examine how the neural composition
and selectivity of engrams change with memory consolidation. Our spiking neural
network model yielded testable predictions: memories transition from unselective
to selective as neurons drop out of and drop into engrams; inhibitory activity
during recall is essential for memory selectivity; and inhibitory synaptic plasticity
during memory consolidation is critical for engrams to become selective. Using
activity-dependent labeling, longitudinal calcium imaging and a combination of
optogenetic and chemogenetic manipulations in mouse dentate gyrus, we conducted
contextual fear conditioning experiments that supported our model’s predictions.
Our results reveal that memory engrams are dynamic and that changes in engram
composition mediated by inhibitory plasticity are crucial for the emergence of
memory selectivity.'
acknowledgement: We thank S. Erisken from Inscopix for helping us establish in vivo
one-photon calcium imaging for this work. We thank K. Su at Tsinghua University
for assistance with this work. This work was funded by the President’s PhD Scholarship
from Imperial College London (D.F.T.), the Wellcome Trust (225412/Z/22/Z) (S.S.),
the Biotechnology and Biological Sciences Research Council (BB/N013956/1 and BB/N019008/1)
(C.C.), the Wellcome Trust (200790/Z/16/Z) (C.C.), the Simons Foundation (564408)
(C.C.) and the Engineering and Physical Sciences Research Council (EP/R035806/1)
(CC). The School of Life Sciences and the IDG/McGovern Institute for Brain Research
supported Y.Z. The Warren Alpert Distinguished Scholar Award and National Institutes
of Health 1K99NS125131-01 supported D.S.R.
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Douglas
full_name: Feitosa Tomé, Douglas
id: 0eed2d40-3d48-11ec-8d38-f789cc2e40b2
last_name: Feitosa Tomé
- first_name: Ying
full_name: Zhang, Ying
last_name: Zhang
- first_name: Tomomi
full_name: Aida, Tomomi
last_name: Aida
- first_name: Olivia
full_name: Mosto, Olivia
last_name: Mosto
- first_name: Yifeng
full_name: Lu, Yifeng
last_name: Lu
- first_name: Mandy
full_name: Chen, Mandy
last_name: Chen
- first_name: Sadra
full_name: Sadeh, Sadra
last_name: Sadeh
- first_name: Dheeraj S.
full_name: Roy, Dheeraj S.
last_name: Roy
- first_name: Claudia
full_name: Clopath, Claudia
last_name: Clopath
citation:
ama: Feitosa Tomé D, Zhang Y, Aida T, et al. Dynamic and selective engrams emerge
with memory consolidation. Nature Neuroscience. 2024. doi:10.1038/s41593-023-01551-w
apa: Feitosa Tomé, D., Zhang, Y., Aida, T., Mosto, O., Lu, Y., Chen, M., … Clopath,
C. (2024). Dynamic and selective engrams emerge with memory consolidation. Nature
Neuroscience. Springer Nature. https://doi.org/10.1038/s41593-023-01551-w
chicago: Feitosa Tomé, Douglas, Ying Zhang, Tomomi Aida, Olivia Mosto, Yifeng Lu,
Mandy Chen, Sadra Sadeh, Dheeraj S. Roy, and Claudia Clopath. “Dynamic and Selective
Engrams Emerge with Memory Consolidation.” Nature Neuroscience. Springer
Nature, 2024. https://doi.org/10.1038/s41593-023-01551-w.
ieee: D. Feitosa Tomé et al., “Dynamic and selective engrams emerge with
memory consolidation,” Nature Neuroscience. Springer Nature, 2024.
ista: Feitosa Tomé D, Zhang Y, Aida T, Mosto O, Lu Y, Chen M, Sadeh S, Roy DS, Clopath
C. 2024. Dynamic and selective engrams emerge with memory consolidation. Nature
Neuroscience.
mla: Feitosa Tomé, Douglas, et al. “Dynamic and Selective Engrams Emerge with Memory
Consolidation.” Nature Neuroscience, Springer Nature, 2024, doi:10.1038/s41593-023-01551-w.
short: D. Feitosa Tomé, Y. Zhang, T. Aida, O. Mosto, Y. Lu, M. Chen, S. Sadeh, D.S.
Roy, C. Clopath, Nature Neuroscience (2024).
date_created: 2024-01-28T23:01:43Z
date_published: 2024-01-19T00:00:00Z
date_updated: 2024-01-29T09:22:00Z
day: '19'
department:
- _id: TiVo
doi: 10.1038/s41593-023-01551-w
external_id:
isi:
- '001145442300001'
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1038/s41593-023-01551-w
month: '01'
oa: 1
oa_version: Published Version
publication: Nature Neuroscience
publication_identifier:
eissn:
- 1546-1726
issn:
- 1097-6256
publication_status: epub_ahead
publisher: Springer Nature
quality_controlled: '1'
related_material:
record:
- id: '14892'
relation: research_data
status: public
scopus_import: '1'
status: public
title: Dynamic and selective engrams emerge with memory consolidation
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2024'
...
---
_id: '14251'
abstract:
- lang: eng
text: The phytohormone auxin and its directional transport through tissues play
a fundamental role in development of higher plants. This polar auxin transport
predominantly relies on PIN-FORMED (PIN) auxin exporters. Hence, PIN polarization
is crucial for development, but its evolution during the rise of morphological
complexity in land plants remains unclear. Here, we performed a cross-species
investigation by observing the trafficking and localization of endogenous and
exogenous PINs in two bryophytes, Physcomitrium patens and Marchantia polymorpha,
and in the flowering plant Arabidopsis thaliana. We confirmed that the GFP fusion
did not compromise the auxin export function of all examined PINs by using radioactive
auxin export assay and by observing the phenotypic changes in transgenic bryophytes.
Endogenous PINs polarize to filamentous apices, while exogenous Arabidopsis PINs
distribute symmetrically on the membrane in both bryophytes. In Arabidopsis root
epidermis, bryophytic PINs show no defined polarity. Pharmacological interference
revealed a strong cytoskeleton dependence of bryophytic but not Arabidopsis PIN
polarization. The divergence of PIN polarization and trafficking is also observed
within the bryophyte clade and between tissues of individual species. These results
collectively reveal a divergence of PIN trafficking and polarity mechanisms throughout
land plant evolution and a co-evolution of PIN sequence-based and cell-based polarity
mechanisms.
acknowledgement: This work was supported by the ERC grant (PR1023ERC02) to H. T. and
J. F., and by the ministry of science and technology (grant number 110-2636-B-005-001)
to K. J. L.
article_number: '100669'
article_processing_charge: Yes
article_type: original
author:
- first_name: Han
full_name: Tang, Han
id: 19BDF720-25A0-11EA-AC6E-928F3DDC885E
last_name: Tang
orcid: 0000-0001-6152-6637
- first_name: KJ
full_name: Lu, KJ
last_name: Lu
- first_name: Y
full_name: Zhang, Y
last_name: Zhang
- first_name: YL
full_name: Cheng, YL
last_name: Cheng
- first_name: SL
full_name: Tu, SL
last_name: Tu
- first_name: Jiří
full_name: Friml, Jiří
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
citation:
ama: Tang H, Lu K, Zhang Y, Cheng Y, Tu S, Friml J. Divergence of trafficking and
polarization mechanisms for PIN auxin transporters during land plant evolution.
Plant Communications. 2024;5(1). doi:10.1016/j.xplc.2023.100669
apa: Tang, H., Lu, K., Zhang, Y., Cheng, Y., Tu, S., & Friml, J. (2024). Divergence
of trafficking and polarization mechanisms for PIN auxin transporters during land
plant evolution. Plant Communications. Elsevier. https://doi.org/10.1016/j.xplc.2023.100669
chicago: Tang, Han, KJ Lu, Y Zhang, YL Cheng, SL Tu, and Jiří Friml. “Divergence
of Trafficking and Polarization Mechanisms for PIN Auxin Transporters during Land
Plant Evolution.” Plant Communications. Elsevier, 2024. https://doi.org/10.1016/j.xplc.2023.100669.
ieee: H. Tang, K. Lu, Y. Zhang, Y. Cheng, S. Tu, and J. Friml, “Divergence of trafficking
and polarization mechanisms for PIN auxin transporters during land plant evolution,”
Plant Communications, vol. 5, no. 1. Elsevier, 2024.
ista: Tang H, Lu K, Zhang Y, Cheng Y, Tu S, Friml J. 2024. Divergence of trafficking
and polarization mechanisms for PIN auxin transporters during land plant evolution.
Plant Communications. 5(1), 100669.
mla: Tang, Han, et al. “Divergence of Trafficking and Polarization Mechanisms for
PIN Auxin Transporters during Land Plant Evolution.” Plant Communications,
vol. 5, no. 1, 100669, Elsevier, 2024, doi:10.1016/j.xplc.2023.100669.
short: H. Tang, K. Lu, Y. Zhang, Y. Cheng, S. Tu, J. Friml, Plant Communications
5 (2024).
date_created: 2023-09-01T11:32:02Z
date_published: 2024-01-08T00:00:00Z
date_updated: 2024-01-30T13:00:47Z
day: '08'
ddc:
- '580'
department:
- _id: JiFr
doi: 10.1016/j.xplc.2023.100669
ec_funded: 1
external_id:
pmid:
- '37528584'
file:
- access_level: open_access
checksum: edbc44c6d4a394d2bf70f92fdbb08f0a
content_type: application/pdf
creator: dernst
date_created: 2024-01-30T12:59:57Z
date_updated: 2024-01-30T12:59:57Z
file_id: '14911'
file_name: 2023_PlantCommunications_Tang.pdf
file_size: 2825565
relation: main_file
success: 1
file_date_updated: 2024-01-30T12:59:57Z
has_accepted_license: '1'
intvolume: ' 5'
issue: '1'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 261099A6-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '742985'
name: Tracing Evolution of Auxin Transport and Polarity in Plants
publication: Plant Communications
publication_identifier:
issn:
- 2590-3462
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Divergence of trafficking and polarization mechanisms for PIN auxin transporters
during land plant evolution
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: 5
year: '2024'
...
---
_id: '14886'
abstract:
- lang: eng
text: It is a basic principle that an effect cannot come before the cause. Dispersive
relations that follow from this fundamental fact have proven to be an indispensable
tool in physics and engineering. They are most powerful in the domain of linear
response where they are known as Kramers-Kronig relations. However, when it comes
to nonlinear phenomena the implications of causality are much less explored, apart
from several notable exceptions. Here in this paper we demonstrate how to apply
the dispersive formalism to analyze the ultrafast nonlinear response in the context
of the paradigmatic nonlinear Kerr effect. We find that the requirement of causality
introduces a noticeable effect even under assumption that Kerr effect is mediated
by quasi-instantaneous off-resonant electronic hyperpolarizability. We confirm
this by experimentally measuring the time-resolved Kerr dynamics in GaAs by means
of a hybrid pump-probe Mach-Zehnder interferometer and demonstrate the presence
of an intrinsic lagging between amplitude and phase responses as predicted by
dispersive analysis. Our results describe a general property of the time-resolved
nonlinear processes thereby highlighting the importance of accounting for dispersive
effects in the nonlinear optical processes involving ultrashort pulses.
acknowledgement: The work was supported by the Institute of Science and Technology
Austria (ISTA). We thank Prof. John M. Dudley, Dr. Ugur Sezer, and Dr. Artem Volosniev
for valuable discussions.
article_number: '013042'
article_processing_charge: Yes
article_type: original
author:
- first_name: Dusan
full_name: Lorenc, Dusan
id: 40D8A3E6-F248-11E8-B48F-1D18A9856A87
last_name: Lorenc
- first_name: Zhanybek
full_name: Alpichshev, Zhanybek
id: 45E67A2A-F248-11E8-B48F-1D18A9856A87
last_name: Alpichshev
orcid: 0000-0002-7183-5203
citation:
ama: 'Lorenc D, Alpichshev Z. Dispersive effects in ultrafast nonlinear phenomena:
The case of optical Kerr effect. Physical Review Research. 2024;6(1). doi:10.1103/PhysRevResearch.6.013042'
apa: 'Lorenc, D., & Alpichshev, Z. (2024). Dispersive effects in ultrafast nonlinear
phenomena: The case of optical Kerr effect. Physical Review Research. American
Physical Society. https://doi.org/10.1103/PhysRevResearch.6.013042'
chicago: 'Lorenc, Dusan, and Zhanybek Alpichshev. “Dispersive Effects in Ultrafast
Nonlinear Phenomena: The Case of Optical Kerr Effect.” Physical Review Research.
American Physical Society, 2024. https://doi.org/10.1103/PhysRevResearch.6.013042.'
ieee: 'D. Lorenc and Z. Alpichshev, “Dispersive effects in ultrafast nonlinear phenomena:
The case of optical Kerr effect,” Physical Review Research, vol. 6, no.
1. American Physical Society, 2024.'
ista: 'Lorenc D, Alpichshev Z. 2024. Dispersive effects in ultrafast nonlinear phenomena:
The case of optical Kerr effect. Physical Review Research. 6(1), 013042.'
mla: 'Lorenc, Dusan, and Zhanybek Alpichshev. “Dispersive Effects in Ultrafast Nonlinear
Phenomena: The Case of Optical Kerr Effect.” Physical Review Research,
vol. 6, no. 1, 013042, American Physical Society, 2024, doi:10.1103/PhysRevResearch.6.013042.'
short: D. Lorenc, Z. Alpichshev, Physical Review Research 6 (2024).
date_created: 2024-01-28T23:01:42Z
date_published: 2024-01-11T00:00:00Z
date_updated: 2024-01-31T12:01:16Z
day: '11'
ddc:
- '530'
department:
- _id: ZhAl
doi: 10.1103/PhysRevResearch.6.013042
file:
- access_level: open_access
checksum: 42d58f93ae74e7f2c4de058ef75ff8b2
content_type: application/pdf
creator: dernst
date_created: 2024-01-31T11:59:30Z
date_updated: 2024-01-31T11:59:30Z
file_id: '14918'
file_name: 2024_PhysicalReviewResearch_Lorenc.pdf
file_size: 2863627
relation: main_file
success: 1
file_date_updated: 2024-01-31T11:59:30Z
has_accepted_license: '1'
intvolume: ' 6'
issue: '1'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
publication: Physical Review Research
publication_identifier:
eissn:
- 2643-1564
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Dispersive effects in ultrafast nonlinear phenomena: The case of optical Kerr
effect'
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 6
year: '2024'
...
---
_id: '14821'
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Heloisa
full_name: Chiossi, Heloisa
id: 2BBA502C-F248-11E8-B48F-1D18A9856A87
last_name: Chiossi
citation:
ama: Chiossi HSC. Adaptive hierarchical representations in the hippocampus. 2024.
doi:10.15479/at:ista:14821
apa: Chiossi, H. S. C. (2024). Adaptive hierarchical representations in the hippocampus.
Institute of Science and Technology Austria. https://doi.org/10.15479/at:ista:14821
chicago: Chiossi, Heloisa S. C. “Adaptive Hierarchical Representations in the Hippocampus.”
Institute of Science and Technology Austria, 2024. https://doi.org/10.15479/at:ista:14821.
ieee: H. S. C. Chiossi, “Adaptive hierarchical representations in the hippocampus,”
Institute of Science and Technology Austria, 2024.
ista: Chiossi HSC. 2024. Adaptive hierarchical representations in the hippocampus.
Institute of Science and Technology Austria.
mla: Chiossi, Heloisa S. C. Adaptive Hierarchical Representations in the Hippocampus.
Institute of Science and Technology Austria, 2024, doi:10.15479/at:ista:14821.
short: H.S.C. Chiossi, Adaptive Hierarchical Representations in the Hippocampus,
Institute of Science and Technology Austria, 2024.
date_created: 2024-01-16T14:25:21Z
date_published: 2024-01-19T00:00:00Z
date_updated: 2024-02-01T09:50:29Z
day: '19'
ddc:
- '570'
degree_awarded: PhD
department:
- _id: GradSch
- _id: JoCs
doi: 10.15479/at:ista:14821
ec_funded: 1
file:
- access_level: closed
checksum: d3fa3de1abd5af5204c13e9d55375615
content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
creator: hchiossi
date_created: 2024-01-19T11:04:05Z
date_updated: 2024-01-19T11:04:05Z
file_id: '14838'
file_name: PhD_Thesis_190124.docx
file_size: 8656268
relation: source_file
- access_level: closed
checksum: 13adc8dcfb5b6b18107f89f0a98fa8bd
content_type: application/pdf
creator: hchiossi
date_created: 2024-01-19T11:03:59Z
date_updated: 2024-01-19T11:03:59Z
embargo: 2025-01-19
embargo_to: open_access
file_id: '14839'
file_name: PhD_Thesis_190124.pdf
file_size: 6567275
relation: main_file
file_date_updated: 2024-01-19T11:04:05Z
has_accepted_license: '1'
language:
- iso: eng
month: '01'
oa_version: Published Version
page: '89'
project:
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '665385'
name: International IST Doctoral Program
publication_identifier:
issn:
- 2663 - 337X
publication_status: published
publisher: Institute of Science and Technology Austria
status: public
supervisor:
- first_name: Jozsef L
full_name: Csicsvari, Jozsef L
id: 3FA14672-F248-11E8-B48F-1D18A9856A87
last_name: Csicsvari
orcid: 0000-0002-5193-4036
title: Adaptive hierarchical representations in the hippocampus
type: dissertation
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2024'
...
---
_id: '14901'
abstract:
- lang: eng
text: Global services like navigation, communication, and Earth observation have
increased dramatically in the 21st century due to advances in outer space industries.
But as orbits become increasingly crowded with both satellites and inevitable
space debris pollution, continued operations become endangered by the heightened
risks of debris collisions in orbit. Kessler Syndrome is the term for when a critical
threshold of orbiting debris triggers a runaway positive feedback loop of debris
collisions, creating debris congestion that can render orbits unusable. As this
potential tipping point becomes more widely recognized, there have been renewed
calls for debris mitigation and removal. Here, we combine complex systems and
social-ecological systems approaches to study how these efforts may affect space
debris accumulation and the likelihood of reaching Kessler Syndrome. Specifically,
we model how debris levels are affected by future launch rates, cleanup activities,
and collisions between extant debris. We contextualize and interpret our dynamic
model within a discussion of existing space debris governance and other social,
economic, and geopolitical factors that may influence effective collective management
of the orbital commons. In line with previous studies, our model finds that debris
congestion may be reached in less than 200 years, though a holistic management
strategy combining removal and mitigation actions can avoid such outcomes while
continuing space activities. Moreover, although active debris removal may be particularly
effective, the current lack of market and governance support may impede its implementation.
Research into these critical dynamics and the multi-faceted variables that influence
debris outcomes can support policymakers in curating impactful governance strategies
and realistic transition pathways to sustaining debris-free orbits. Overall, our
study is useful for communicating about space debris sustainability in policy
and education settings by providing an exploration of policy portfolio options
supported by a simple and clear social-ecological modeling approach.
acknowledgement: The authors would like to thank the special issue co-editors, Marco
Janssen and Xiao-Shan Yap, and the anonymous reviewers for their comments that helped
improve the manuscript. The paper also benefited from suggestions by other author
participants in this special issue. We would also like to thank the 2022 Santa Fe
Institute Complex Systems Summer School for providing space to initiate this study.
article_processing_charge: Yes
article_type: original
author:
- first_name: Keiko
full_name: Nomura, Keiko
last_name: Nomura
- first_name: Simon
full_name: Rella, Simon
id: B4765ACA-AA38-11E9-AC9A-0930E6697425
last_name: Rella
- first_name: Haily
full_name: Merritt, Haily
last_name: Merritt
- first_name: Mathieu
full_name: Baltussen, Mathieu
last_name: Baltussen
- first_name: Darcy
full_name: Bird, Darcy
last_name: Bird
- first_name: Annika
full_name: Tjuka, Annika
last_name: Tjuka
- first_name: Dan
full_name: Falk, Dan
last_name: Falk
citation:
ama: Nomura K, Rella S, Merritt H, et al. Tipping points of space debris in low
earth orbit. International Journal of the Commons. 2024;18(1). doi:10.5334/ijc.1275
apa: Nomura, K., Rella, S., Merritt, H., Baltussen, M., Bird, D., Tjuka, A., &
Falk, D. (2024). Tipping points of space debris in low earth orbit. International
Journal of the Commons. Ubiquity Press. https://doi.org/10.5334/ijc.1275
chicago: Nomura, Keiko, Simon Rella, Haily Merritt, Mathieu Baltussen, Darcy Bird,
Annika Tjuka, and Dan Falk. “Tipping Points of Space Debris in Low Earth Orbit.”
International Journal of the Commons. Ubiquity Press, 2024. https://doi.org/10.5334/ijc.1275.
ieee: K. Nomura et al., “Tipping points of space debris in low earth orbit,”
International Journal of the Commons, vol. 18, no. 1. Ubiquity Press, 2024.
ista: Nomura K, Rella S, Merritt H, Baltussen M, Bird D, Tjuka A, Falk D. 2024.
Tipping points of space debris in low earth orbit. International Journal of the
Commons. 18(1).
mla: Nomura, Keiko, et al. “Tipping Points of Space Debris in Low Earth Orbit.”
International Journal of the Commons, vol. 18, no. 1, Ubiquity Press, 2024,
doi:10.5334/ijc.1275.
short: K. Nomura, S. Rella, H. Merritt, M. Baltussen, D. Bird, A. Tjuka, D. Falk,
International Journal of the Commons 18 (2024).
date_created: 2024-01-30T11:58:02Z
date_published: 2024-01-11T00:00:00Z
date_updated: 2024-02-05T10:10:27Z
day: '11'
ddc:
- '550'
department:
- _id: GradSch
- _id: GaTk
doi: 10.5334/ijc.1275
file:
- access_level: open_access
checksum: b80ebc889033c365d8f8c05a0c655382
content_type: application/pdf
creator: dernst
date_created: 2024-02-05T10:06:35Z
date_updated: 2024-02-05T10:06:35Z
file_id: '14939'
file_name: 2023_IntJourCommons_Nomura.pdf
file_size: 1305786
relation: main_file
success: 1
file_date_updated: 2024-02-05T10:06:35Z
has_accepted_license: '1'
intvolume: ' 18'
issue: '1'
keyword:
- Sociology and Political Science
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
publication: International Journal of the Commons
publication_identifier:
issn:
- 1875-0281
publication_status: published
publisher: Ubiquity Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Tipping points of space debris in low earth orbit
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: 18
year: '2024'
...
---
_id: '14884'
abstract:
- lang: eng
text: We perform a stochastic homogenization analysis for composite materials exhibiting
a random microstructure. Under the assumptions of stationarity and ergodicity,
we characterize the Gamma-limit of a micromagnetic energy functional defined on
magnetizations taking value in the unit sphere and including both symmetric and
antisymmetric exchange contributions. This Gamma-limit corresponds to a micromagnetic
energy functional with homogeneous coefficients. We provide explicit formulas
for the effective magnetic properties of the composite material in terms of homogenization
correctors. Additionally, the variational analysis of the two exchange energy
terms is performed in the more general setting of functionals defined on manifold-valued
maps with Sobolev regularity, in the case in which the target manifold is a bounded,
orientable smooth surface with tubular neighborhood of uniform thickness. Eventually,
we present an explicit characterization of minimizers of the effective exchange
in the case of magnetic multilayers, providing quantitative evidence of Dzyaloshinskii’s
predictions on the emergence of helical structures in composite ferromagnetic
materials with stochastic microstructure.
acknowledgement: All authors acknowledge support of the Austrian Science Fund (FWF)
through the SFB project F65. The research of E. Davoli and L. D’Elia has additionally
been supported by the FWF through grants V662, Y1292, and P35359, as well as from
OeAD through the WTZ grant CZ09/2023.
article_number: '30'
article_processing_charge: No
article_type: original
author:
- first_name: Elisa
full_name: Davoli, Elisa
last_name: Davoli
- first_name: Lorenza
full_name: D’Elia, Lorenza
last_name: D’Elia
- first_name: Jonas
full_name: Ingmanns, Jonas
id: 71523d30-15b2-11ec-abd3-f80aa909d6b0
last_name: Ingmanns
citation:
ama: Davoli E, D’Elia L, Ingmanns J. Stochastic homogenization of micromagnetic
energies and emergence of magnetic skyrmions. Journal of Nonlinear Science.
2024;34(2). doi:10.1007/s00332-023-10005-3
apa: Davoli, E., D’Elia, L., & Ingmanns, J. (2024). Stochastic homogenization
of micromagnetic energies and emergence of magnetic skyrmions. Journal of Nonlinear
Science. Springer Nature. https://doi.org/10.1007/s00332-023-10005-3
chicago: Davoli, Elisa, Lorenza D’Elia, and Jonas Ingmanns. “Stochastic Homogenization
of Micromagnetic Energies and Emergence of Magnetic Skyrmions.” Journal of
Nonlinear Science. Springer Nature, 2024. https://doi.org/10.1007/s00332-023-10005-3.
ieee: E. Davoli, L. D’Elia, and J. Ingmanns, “Stochastic homogenization of micromagnetic
energies and emergence of magnetic skyrmions,” Journal of Nonlinear Science,
vol. 34, no. 2. Springer Nature, 2024.
ista: Davoli E, D’Elia L, Ingmanns J. 2024. Stochastic homogenization of micromagnetic
energies and emergence of magnetic skyrmions. Journal of Nonlinear Science. 34(2),
30.
mla: Davoli, Elisa, et al. “Stochastic Homogenization of Micromagnetic Energies
and Emergence of Magnetic Skyrmions.” Journal of Nonlinear Science, vol.
34, no. 2, 30, Springer Nature, 2024, doi:10.1007/s00332-023-10005-3.
short: E. Davoli, L. D’Elia, J. Ingmanns, Journal of Nonlinear Science 34 (2024).
date_created: 2024-01-28T23:01:42Z
date_published: 2024-01-23T00:00:00Z
date_updated: 2024-02-05T08:54:44Z
day: '23'
department:
- _id: JuFi
doi: 10.1007/s00332-023-10005-3
external_id:
arxiv:
- '2306.05151'
intvolume: ' 34'
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2306.05151
month: '01'
oa: 1
oa_version: Preprint
project:
- _id: fc31cba2-9c52-11eb-aca3-ff467d239cd2
grant_number: F6504
name: Taming Complexity in Partial Differential Systems
publication: Journal of Nonlinear Science
publication_identifier:
eissn:
- 1432-1467
issn:
- 0938-8974
publication_status: epub_ahead
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Stochastic homogenization of micromagnetic energies and emergence of magnetic
skyrmions
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 34
year: '2024'
...
---
_id: '14933'
abstract:
- lang: eng
text: Centrioles are part of centrosomes and cilia, which are microtubule organising
centres (MTOC) with diverse functions. Despite their stability, centrioles can
disappear during differentiation, such as in oocytes, but little is known about
the regulation of their structural integrity. Our previous research revealed that
the pericentriolar material (PCM) that surrounds centrioles and its recruiter,
Polo kinase, are downregulated in oogenesis and sufficient for maintaining both
centrosome structural integrity and MTOC activity. We now show that the expression
of specific components of the centriole cartwheel and wall, including ANA1/CEP295,
is essential for maintaining centrosome integrity. We find that Polo kinase requires
ANA1 to promote centriole stability in cultured cells and eggs. In addition, ANA1
expression prevents the loss of centrioles observed upon PCM-downregulation. However,
the centrioles maintained by overexpressing and tethering ANA1 are inactive, unlike
the MTOCs observed upon tethering Polo kinase. These findings demonstrate that
several centriole components are needed to maintain centrosome structure. Our
study also highlights that centrioles are more dynamic than previously believed,
with their structural stability relying on the continuous expression of multiple
components.
acknowledgement: We thank all members of the Cell Cycle and Regulation Lab for the
discussions and for the critical reading of the manuscript. We thank Tomer Avidor-Reiss
(University of Toledo, Toledo, OH), Daniel St. Johnston (The Gurdon Institute, Cambridge,
UK), David Glover (University of Cambridge, Cambridge, UK), Jingyan Fu (Agricultural
University, Beijing, China) Jordan Raff (University of Oxford, Oxford, UK) and Timothy
Megraw (Florida State University, Tallahassee, FL) for sharing tools. We acknowledge
the technical support of Instituto Gulbenkian de Ciência (IGC)‘s Advanced Imaging
Facility, in particular Gabriel Martins, Nuno Pimpão Martins and José Marques. We
also thank Tiago Paixão from the IGC’s Quantitative & Digital Science Unit and Marco
Louro from the CCR lab for the support provided on statistical analysis. IGC’s Advanced
Imaging Facility (AIF-UIC) is supported by the national Portuguese funding ref#
PPBI-POCI-01-0145-FEDER -022122. We thank the IGC’s Fly Facility, supported by CONGENTO
(LISBOA-01-0145-FEDER-022170). This work was supported by an ERC grant (ERC-2015-CoG-683258)
awarded to MBD and a grant from the Portuguese Research Council (FCT) awarded to
APM (PTDC/BIA-BID/32225/2017).
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Ana
full_name: Pimenta-Marques, Ana
last_name: Pimenta-Marques
- first_name: Tania
full_name: Perestrelo, Tania
last_name: Perestrelo
- first_name: Patricia
full_name: Dos Reis Rodrigues, Patricia
id: 26E95904-5160-11E9-9C0B-C5B0DC97E90F
last_name: Dos Reis Rodrigues
orcid: 0000-0003-1681-508X
- first_name: Paulo
full_name: Duarte, Paulo
last_name: Duarte
- first_name: Ana
full_name: Ferreira-Silva, Ana
last_name: Ferreira-Silva
- first_name: Mariana
full_name: Lince-Faria, Mariana
last_name: Lince-Faria
- first_name: Mónica
full_name: Bettencourt-Dias, Mónica
last_name: Bettencourt-Dias
citation:
ama: Pimenta-Marques A, Perestrelo T, Dos Reis Rodrigues P, et al. Ana1/CEP295 is
an essential player in the centrosome maintenance program regulated by Polo kinase
and the PCM. EMBO reports. 2024;25(1):102-127. doi:10.1038/s44319-023-00020-6
apa: Pimenta-Marques, A., Perestrelo, T., Dos Reis Rodrigues, P., Duarte, P., Ferreira-Silva,
A., Lince-Faria, M., & Bettencourt-Dias, M. (2024). Ana1/CEP295 is an essential
player in the centrosome maintenance program regulated by Polo kinase and the
PCM. EMBO Reports. Embo Press. https://doi.org/10.1038/s44319-023-00020-6
chicago: Pimenta-Marques, Ana, Tania Perestrelo, Patricia Dos Reis Rodrigues, Paulo
Duarte, Ana Ferreira-Silva, Mariana Lince-Faria, and Mónica Bettencourt-Dias.
“Ana1/CEP295 Is an Essential Player in the Centrosome Maintenance Program Regulated
by Polo Kinase and the PCM.” EMBO Reports. Embo Press, 2024. https://doi.org/10.1038/s44319-023-00020-6.
ieee: A. Pimenta-Marques et al., “Ana1/CEP295 is an essential player in the
centrosome maintenance program regulated by Polo kinase and the PCM,” EMBO
reports, vol. 25, no. 1. Embo Press, pp. 102–127, 2024.
ista: Pimenta-Marques A, Perestrelo T, Dos Reis Rodrigues P, Duarte P, Ferreira-Silva
A, Lince-Faria M, Bettencourt-Dias M. 2024. Ana1/CEP295 is an essential player
in the centrosome maintenance program regulated by Polo kinase and the PCM. EMBO
reports. 25(1), 102–127.
mla: Pimenta-Marques, Ana, et al. “Ana1/CEP295 Is an Essential Player in the Centrosome
Maintenance Program Regulated by Polo Kinase and the PCM.” EMBO Reports,
vol. 25, no. 1, Embo Press, 2024, pp. 102–27, doi:10.1038/s44319-023-00020-6.
short: A. Pimenta-Marques, T. Perestrelo, P. Dos Reis Rodrigues, P. Duarte, A. Ferreira-Silva,
M. Lince-Faria, M. Bettencourt-Dias, EMBO Reports 25 (2024) 102–127.
date_created: 2024-02-04T23:00:53Z
date_published: 2024-01-10T00:00:00Z
date_updated: 2024-02-05T12:37:07Z
day: '10'
ddc:
- '570'
department:
- _id: MiSi
doi: 10.1038/s44319-023-00020-6
file:
- access_level: open_access
checksum: 53c3ef43d9bd6d7bff3ffcf57d763cac
content_type: application/pdf
creator: dernst
date_created: 2024-02-05T12:35:03Z
date_updated: 2024-02-05T12:35:03Z
file_id: '14941'
file_name: 2023_EmboReports_PimentaMarques.pdf
file_size: 9645056
relation: main_file
success: 1
file_date_updated: 2024-02-05T12:35:03Z
has_accepted_license: '1'
intvolume: ' 25'
issue: '1'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
page: 102-127
publication: EMBO reports
publication_identifier:
eissn:
- 1469-3178
publication_status: published
publisher: Embo Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Ana1/CEP295 is an essential player in the centrosome maintenance program regulated
by Polo kinase and the PCM
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: 25
year: '2024'
...
---
_id: '14932'
abstract:
- lang: eng
text: The huge antlers of the extinct Irish elk have invited evolutionary speculation
since Darwin. In the 1970s, Stephen Jay Gould presented the first extensive data
on antler size in the Irish elk and combined these with comparative data from
other deer to test the hypothesis that the gigantic antlers were the outcome of
a positive allometry that constrained large-bodied deer to have proportionally
even larger antlers. He concluded that the Irish elk had antlers as predicted
for its size and interpreted this within his emerging framework of developmental
constraints as an explanatory factor in evolution. Here we reanalyze antler allometry
based on new morphometric data for 57 taxa of the family Cervidae. We also present
a new phylogeny for the Cervidae, which we use for comparative analyses. In contrast
to Gould, we find that the antlers of Irish elk were larger than predicted from
the allometry within the true deer, Cervini, as analyzed by Gould, but follow
the allometry across Cervidae as a whole. After dissecting the discrepancy, we
reject the allometric-constraint hypothesis because, contrary to Gould, we find
no similarity between static and evolutionary allometries, and because we document
extensive non-allometric evolution of antler size across the Cervidae.
acknowledgement: "Open access funding provided by University of Oslo (incl Oslo University
Hospital).\r\nWe thank Adrian Lister, Louis Tomsett, Roberto Portela Miguez and
Roula Pappa (NHMUK), Brian O'Toole and Eileen Westwig (AMNH), Daniela Kalthoff (NHRM),
Alexander Bibl and Zachos Frank (NHMW), Darrin Lunde and John Ososky (NMNH), Matthew
Parkes and Nigel Monaghan (NMI), Elizabetta Cioppi and Luca Bellucci (IGF), and
Yoshihiro Tanaka and Hiroyuki Taruno (OMNH), who helped us in obtaining the museum
data, and a special thanks to Jørgen Sikkeland (NTNU NHM) for assistance in obtaining
the ontogenetic data for the red deer. We thank Olja Toljagic and Kjetil L. Voje
for discussions, Ayumu Tsuboi for assistance with data collection, and Jean-Michel
Gaillard and the anonymous reviewers for comments on the manuscript. We thank the
Centre of Advanced Study (CAS) at the Norwegian Academy of Sciences and Letters
for hosting us during the academic year of 2019/2020 when much of the analysis and
writing were done. MT was funded by JSPS Research Fellowship for Young Scientists
(201603238)."
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Masahito
full_name: Tsuboi, Masahito
last_name: Tsuboi
- first_name: Bjørn Tore
full_name: Kopperud, Bjørn Tore
last_name: Kopperud
- first_name: Michael
full_name: Matschiner, Michael
last_name: Matschiner
- first_name: Mark
full_name: Grabowski, Mark
last_name: Grabowski
- first_name: Chrsitine
full_name: Syrowatka, Chrsitine
id: 205ffb76-7fe7-11eb-aa17-958bd11b99ad
last_name: Syrowatka
- first_name: Christophe
full_name: Pélabon, Christophe
last_name: Pélabon
- first_name: Thomas F.
full_name: Hansen, Thomas F.
last_name: Hansen
citation:
ama: Tsuboi M, Kopperud BT, Matschiner M, et al. Antler allometry, the Irish elk
and Gould revisited. Evolutionary Biology. 2024. doi:10.1007/s11692-023-09624-1
apa: Tsuboi, M., Kopperud, B. T., Matschiner, M., Grabowski, M., Syrowatka, C.,
Pélabon, C., & Hansen, T. F. (2024). Antler allometry, the Irish elk and Gould
revisited. Evolutionary Biology. Springer Nature. https://doi.org/10.1007/s11692-023-09624-1
chicago: Tsuboi, Masahito, Bjørn Tore Kopperud, Michael Matschiner, Mark Grabowski,
Chrsitine Syrowatka, Christophe Pélabon, and Thomas F. Hansen. “Antler Allometry,
the Irish Elk and Gould Revisited.” Evolutionary Biology. Springer Nature,
2024. https://doi.org/10.1007/s11692-023-09624-1.
ieee: M. Tsuboi et al., “Antler allometry, the Irish elk and Gould revisited,”
Evolutionary Biology. Springer Nature, 2024.
ista: Tsuboi M, Kopperud BT, Matschiner M, Grabowski M, Syrowatka C, Pélabon C,
Hansen TF. 2024. Antler allometry, the Irish elk and Gould revisited. Evolutionary
Biology.
mla: Tsuboi, Masahito, et al. “Antler Allometry, the Irish Elk and Gould Revisited.”
Evolutionary Biology, Springer Nature, 2024, doi:10.1007/s11692-023-09624-1.
short: M. Tsuboi, B.T. Kopperud, M. Matschiner, M. Grabowski, C. Syrowatka, C. Pélabon,
T.F. Hansen, Evolutionary Biology (2024).
date_created: 2024-02-04T23:00:53Z
date_published: 2024-01-29T00:00:00Z
date_updated: 2024-02-05T12:43:58Z
day: '29'
department:
- _id: MaRo
doi: 10.1007/s11692-023-09624-1
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1007/s11692-023-09624-1
month: '01'
oa: 1
oa_version: Published Version
publication: Evolutionary Biology
publication_identifier:
eissn:
- 1934-2845
issn:
- 0071-3260
publication_status: epub_ahead
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Antler allometry, the Irish elk and Gould revisited
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2024'
...
---
_id: '14934'
abstract:
- lang: eng
text: "We study random perturbations of a Riemannian manifold (M, g) by means of
so-called\r\nFractional Gaussian Fields, which are defined intrinsically by the
given manifold. The fields\r\nh• : ω \x02→ hω will act on the manifold via the
conformal transformation g \x02→ gω := e2hω g.\r\nOur focus will be on the regular
case with Hurst parameter H > 0, the critical case H = 0\r\nbeing the celebrated
Liouville geometry in two dimensions. We want to understand how basic\r\ngeometric
and functional-analytic quantities like diameter, volume, heat kernel, Brownian\r\nmotion,
spectral bound, or spectral gap change under the influence of the noise. And if
so, is\r\nit possible to quantify these dependencies in terms of key parameters
of the noise? Another\r\ngoal is to define and analyze in detail the Fractional
Gaussian Fields on a general Riemannian\r\nmanifold, a fascinating object of independent
interest."
acknowledgement: "The authors would like to thank Matthias Erbar and Ronan Herry for
valuable discussions on this project. They are also grateful to Nathanaël Berestycki,
and Fabrice Baudoin for respectively pointing out the references [7], and [6, 24],
and to Julien Fageot and Thomas Letendre for pointing out a mistake in a previous
version of the proof of Proposition 3.10. The authors feel very much indebted to
an anonymous reviewer for his/her careful reading and the many valuable suggestions
that have significantly contributed to the improvement of the paper. L.D.S. gratefully
acknowledges financial support by the Deutsche Forschungsgemeinschaft through CRC
1060 as well as through SPP 2265, and by the Austrian Science Fund (FWF) grant F65
at Institute of Science and Technology Austria. This research was funded in whole
or in part by the Austrian Science Fund (FWF) ESPRIT 208. For the purpose of open
access, the authors have applied a CC BY public copyright licence to any Author
Accepted Manuscript version arising from this submission. E.K. and K.-T.S. gratefully
acknowledge funding by the Deutsche Forschungsgemeinschaft through the Hausdorff
Center for Mathematics and through CRC 1060 as well as through SPP 2265.\r\nOpen
Access funding enabled and organized by Projekt DEAL."
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Lorenzo
full_name: Dello Schiavo, Lorenzo
id: ECEBF480-9E4F-11EA-B557-B0823DDC885E
last_name: Dello Schiavo
orcid: 0000-0002-9881-6870
- first_name: Eva
full_name: Kopfer, Eva
last_name: Kopfer
- first_name: Karl Theodor
full_name: Sturm, Karl Theodor
last_name: Sturm
citation:
ama: Dello Schiavo L, Kopfer E, Sturm KT. A discovery tour in random Riemannian
geometry. Potential Analysis. 2024. doi:10.1007/s11118-023-10118-0
apa: Dello Schiavo, L., Kopfer, E., & Sturm, K. T. (2024). A discovery tour
in random Riemannian geometry. Potential Analysis. Springer Nature. https://doi.org/10.1007/s11118-023-10118-0
chicago: Dello Schiavo, Lorenzo, Eva Kopfer, and Karl Theodor Sturm. “A Discovery
Tour in Random Riemannian Geometry.” Potential Analysis. Springer Nature,
2024. https://doi.org/10.1007/s11118-023-10118-0.
ieee: L. Dello Schiavo, E. Kopfer, and K. T. Sturm, “A discovery tour in random
Riemannian geometry,” Potential Analysis. Springer Nature, 2024.
ista: Dello Schiavo L, Kopfer E, Sturm KT. 2024. A discovery tour in random Riemannian
geometry. Potential Analysis.
mla: Dello Schiavo, Lorenzo, et al. “A Discovery Tour in Random Riemannian Geometry.”
Potential Analysis, Springer Nature, 2024, doi:10.1007/s11118-023-10118-0.
short: L. Dello Schiavo, E. Kopfer, K.T. Sturm, Potential Analysis (2024).
date_created: 2024-02-04T23:00:54Z
date_published: 2024-01-26T00:00:00Z
date_updated: 2024-02-05T13:04:23Z
day: '26'
department:
- _id: JaMa
doi: 10.1007/s11118-023-10118-0
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1007/s11118-023-10118-0
month: '01'
oa: 1
oa_version: Published Version
project:
- _id: fc31cba2-9c52-11eb-aca3-ff467d239cd2
grant_number: F6504
name: Taming Complexity in Partial Differential Systems
publication: Potential Analysis
publication_identifier:
eissn:
- 1572-929X
issn:
- 0926-2601
publication_status: epub_ahead
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: A discovery tour in random Riemannian geometry
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2024'
...
---
_id: '12312'
abstract:
- lang: eng
text: "Let $\\ell$ be a prime number. We classify the subgroups $G$ of $\\operatorname{Sp}_4(\\mathbb{F}_\\ell)$
and $\\operatorname{GSp}_4(\\mathbb{F}_\\ell)$ that act irreducibly on $\\mathbb{F}_\\ell^4$,
but such that every element of $G$ fixes an $\\mathbb{F}_\\ell$-vector subspace
of dimension 1. We use this classification to prove that the local-global principle
for isogenies of degree $\\ell$ between abelian surfaces over number fields holds
in many cases -- in particular, whenever the abelian surface has non-trivial endomorphisms
and $\\ell$ is large enough with respect to the field of definition. Finally,
we prove that there exist arbitrarily large primes $\\ell$ for which some abelian
surface\r\n$A/\\mathbb{Q}$ fails the local-global principle for isogenies of degree
$\\ell$."
acknowledgement: "It is a pleasure to thank Samuele Anni for his interest in this
project and for several discussions on the topic of this paper, which led in particular
to Remark 6.30 and to a better understanding of the difficulties with [6]. We also
thank John Cullinan for correspondence about [6] and Barinder Banwait for his many
insightful comments on the first version of this paper. Finally, we thank the referee
for their thorough reading of the manuscript.\r\nOpen access funding provided by
Università di Pisa within the CRUI-CARE Agreement. The authors have been partially
supported by MIUR (Italy) through PRIN 2017 “Geometric, algebraic and analytic methods
in arithmetic\" and PRIN 2022 “Semiabelian varieties, Galois representations and
related Diophantine problems\", and by the University of Pisa through PRA 2018-19
and 2022 “Spazi di moduli, rappresentazioni e strutture combinatorie\". The first
author is a member of the INdAM group GNSAGA."
article_number: '18'
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Davide
full_name: Lombardo, Davide
last_name: Lombardo
- first_name: Matteo
full_name: Verzobio, Matteo
id: 7aa8f170-131e-11ed-88e1-a9efd01027cb
last_name: Verzobio
orcid: 0000-0002-0854-0306
citation:
ama: Lombardo D, Verzobio M. On the local-global principle for isogenies of abelian
surfaces. Selecta Mathematica. 2024;30(2). doi:10.1007/s00029-023-00908-0
apa: Lombardo, D., & Verzobio, M. (2024). On the local-global principle for
isogenies of abelian surfaces. Selecta Mathematica. Springer Nature. https://doi.org/10.1007/s00029-023-00908-0
chicago: Lombardo, Davide, and Matteo Verzobio. “On the Local-Global Principle for
Isogenies of Abelian Surfaces.” Selecta Mathematica. Springer Nature, 2024.
https://doi.org/10.1007/s00029-023-00908-0.
ieee: D. Lombardo and M. Verzobio, “On the local-global principle for isogenies
of abelian surfaces,” Selecta Mathematica, vol. 30, no. 2. Springer Nature,
2024.
ista: Lombardo D, Verzobio M. 2024. On the local-global principle for isogenies
of abelian surfaces. Selecta Mathematica. 30(2), 18.
mla: Lombardo, Davide, and Matteo Verzobio. “On the Local-Global Principle for Isogenies
of Abelian Surfaces.” Selecta Mathematica, vol. 30, no. 2, 18, Springer
Nature, 2024, doi:10.1007/s00029-023-00908-0.
short: D. Lombardo, M. Verzobio, Selecta Mathematica 30 (2024).
date_created: 2023-01-16T11:45:53Z
date_published: 2024-01-26T00:00:00Z
date_updated: 2024-02-05T12:25:00Z
day: '26'
department:
- _id: TiBr
doi: 10.1007/s00029-023-00908-0
external_id:
arxiv:
- '2206.15240'
intvolume: ' 30'
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2206.15240
month: '01'
oa: 1
oa_version: Preprint
publication: Selecta Mathematica
publication_identifier:
eissn:
- 1420-9020
issn:
- 1022-1824
publication_status: epub_ahead
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: On the local-global principle for isogenies of abelian surfaces
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 30
year: '2024'
...
---
_id: '14930'
abstract:
- lang: eng
text: In this paper we investigate locally free representations of a quiver Q over
a commutative Frobenius algebra R by arithmetic Fourier transform. When the base
field is finite we prove that the number of isomorphism classes of absolutely
indecomposable locally free representations of fixed rank is independent of the
orientation of Q. We also prove that the number of isomorphism classes of locally
free absolutely indecomposable representations of the preprojective algebra of
Q over R equals the number of isomorphism classes of locally free absolutely indecomposable
representations of Q over R[t]/(t2). Using these results together with results
of Geiss, Leclerc and Schröer we give, when k is algebraically closed, a classification
of pairs (Q, R) such that the set of isomorphism classes of indecomposable locally
free representations of Q over R is finite. Finally when the representation is
free of rank 1 at each vertex of Q, we study the function that counts the number
of isomorphism classes of absolutely indecomposable locally free representations
of Q over the Frobenius algebra Fq[t]/(tr). We prove that they are polynomial
in q and their generating function is rational and satisfies a functional equation.
acknowledgement: Special thanks go to Christof Geiss, Bernard Leclerc and Jan Schröer
for explaining their work but also for sharing some unpublished results with us.
We also thank the referee for many useful suggestions. We would like to thank Tommaso
Scognamiglio for pointing out a mistake in the proof of Proposition 5.17 in an earlier
version of the paper. We would like also to thank Alexander Beilinson, Bill Crawley-Boevey,
Joel Kamnitzer, and Peng Shan for useful discussions.
article_number: '20'
article_processing_charge: No
article_type: original
author:
- first_name: Tamás
full_name: Hausel, Tamás
id: 4A0666D8-F248-11E8-B48F-1D18A9856A87
last_name: Hausel
- first_name: Emmanuel
full_name: Letellier, Emmanuel
last_name: Letellier
- first_name: Fernando
full_name: Rodriguez-Villegas, Fernando
last_name: Rodriguez-Villegas
citation:
ama: Hausel T, Letellier E, Rodriguez-Villegas F. Locally free representations of
quivers over commutative Frobenius algebras. Selecta Mathematica. 2024;30(2).
doi:10.1007/s00029-023-00914-2
apa: Hausel, T., Letellier, E., & Rodriguez-Villegas, F. (2024). Locally free
representations of quivers over commutative Frobenius algebras. Selecta Mathematica.
Springer Nature. https://doi.org/10.1007/s00029-023-00914-2
chicago: Hausel, Tamás, Emmanuel Letellier, and Fernando Rodriguez-Villegas. “Locally
Free Representations of Quivers over Commutative Frobenius Algebras.” Selecta
Mathematica. Springer Nature, 2024. https://doi.org/10.1007/s00029-023-00914-2.
ieee: T. Hausel, E. Letellier, and F. Rodriguez-Villegas, “Locally free representations
of quivers over commutative Frobenius algebras,” Selecta Mathematica, vol.
30, no. 2. Springer Nature, 2024.
ista: Hausel T, Letellier E, Rodriguez-Villegas F. 2024. Locally free representations
of quivers over commutative Frobenius algebras. Selecta Mathematica. 30(2), 20.
mla: Hausel, Tamás, et al. “Locally Free Representations of Quivers over Commutative
Frobenius Algebras.” Selecta Mathematica, vol. 30, no. 2, 20, Springer
Nature, 2024, doi:10.1007/s00029-023-00914-2.
short: T. Hausel, E. Letellier, F. Rodriguez-Villegas, Selecta Mathematica 30 (2024).
date_created: 2024-02-04T23:00:53Z
date_published: 2024-01-27T00:00:00Z
date_updated: 2024-02-05T12:58:21Z
day: '27'
department:
- _id: TaHa
doi: 10.1007/s00029-023-00914-2
intvolume: ' 30'
issue: '2'
language:
- iso: eng
month: '01'
oa_version: None
publication: Selecta Mathematica
publication_identifier:
eissn:
- 1420-9020
issn:
- 1022-1824
publication_status: epub_ahead
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Locally free representations of quivers over commutative Frobenius algebras
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 30
year: '2024'
...
---
_id: '14885'
abstract:
- lang: eng
text: The near-surface boundary layer can mediate the response of mountain glaciers
to external climate, cooling the overlying air and promoting a density-driven
glacier wind. The fundamental processes are conceptually well understood, though
the magnitudes of cooling and presence of glacier winds are poorly quantified
in space and time, increasing the forcing uncertainty for melt models. We utilize
a new data set of on-glacier meteorological measurements on three neighboring
glaciers in the Swiss Alps to explore their distinct response to regional climate
under the extreme 2022 summer. We find that synoptic wind origins and local terrain
modifications, not only glacier size, play an important role in the ability of
a glacier to cool the near-surface air. Warm air intrusions from valley or synoptically-driven
winds onto the glacier can occur between ∼19% and 64% of the time and contribute
between 3% and 81% of the total sensible heat flux to the surface during warm
afternoon hours, depending on the fetch of the glacier flowline and its susceptibility
to boundary layer erosion. In the context of extreme summer warmth, indicative
of future conditions, the boundary layer cooling (up to 6.5°C cooler than its
surroundings) and resultant katabatic wind flow are highly heterogeneous between
the study glaciers, highlighting the complex and likely non-linear response of
glaciers to an uncertain future.
acknowledgement: This project has received funding from the European Union's Horizon
2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement
No. 101026058. The authors acknowledge the invaluable field assistance of Marta
Corrà, Achille Jouberton, Marin Kneib, Stefan Fugger, Celine Ducret and Alexander
Groos. The authors would also like to thank Luca Carturan for advice regarding AWS
setup and maintenance and Simone Fatichi for provision and support in the use of
the Tethys-Chloris model. Open access funding provided by ETH-Bereich Forschungsanstalten.
article_number: e2023JD040214
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Thomas
full_name: Shaw, Thomas
id: 3caa3f91-1f03-11ee-96ce-e0e553054d6e
last_name: Shaw
orcid: 0000-0001-7640-6152
- first_name: Pascal
full_name: Buri, Pascal
id: 317987aa-9421-11ee-ac5a-b941b041abba
last_name: Buri
- first_name: Michael
full_name: Mccarthy, Michael
id: 22a2674a-61ce-11ee-94b5-d18813baf16f
last_name: Mccarthy
- first_name: Evan S.
full_name: Miles, Evan S.
last_name: Miles
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
orcid: 0000-0002-5554-8087
citation:
ama: 'Shaw T, Buri P, McCarthy M, Miles ES, Pellicciotti F. Local controls on near-surface
glacier cooling under warm atmospheric conditions. Journal of Geophysical Research:
Atmospheres. 2024;129(2). doi:10.1029/2023JD040214'
apa: 'Shaw, T., Buri, P., McCarthy, M., Miles, E. S., & Pellicciotti, F. (2024).
Local controls on near-surface glacier cooling under warm atmospheric conditions.
Journal of Geophysical Research: Atmospheres. Wiley. https://doi.org/10.1029/2023JD040214'
chicago: 'Shaw, Thomas, Pascal Buri, Michael McCarthy, Evan S. Miles, and Francesca
Pellicciotti. “Local Controls on Near-Surface Glacier Cooling under Warm Atmospheric
Conditions.” Journal of Geophysical Research: Atmospheres. Wiley, 2024.
https://doi.org/10.1029/2023JD040214.'
ieee: 'T. Shaw, P. Buri, M. McCarthy, E. S. Miles, and F. Pellicciotti, “Local controls
on near-surface glacier cooling under warm atmospheric conditions,” Journal
of Geophysical Research: Atmospheres, vol. 129, no. 2. Wiley, 2024.'
ista: 'Shaw T, Buri P, McCarthy M, Miles ES, Pellicciotti F. 2024. Local controls
on near-surface glacier cooling under warm atmospheric conditions. Journal of
Geophysical Research: Atmospheres. 129(2), e2023JD040214.'
mla: 'Shaw, Thomas, et al. “Local Controls on Near-Surface Glacier Cooling under
Warm Atmospheric Conditions.” Journal of Geophysical Research: Atmospheres,
vol. 129, no. 2, e2023JD040214, Wiley, 2024, doi:10.1029/2023JD040214.'
short: 'T. Shaw, P. Buri, M. McCarthy, E.S. Miles, F. Pellicciotti, Journal of Geophysical
Research: Atmospheres 129 (2024).'
date_created: 2024-01-28T23:01:42Z
date_published: 2024-01-28T00:00:00Z
date_updated: 2024-02-06T08:44:02Z
day: '28'
ddc:
- '550'
department:
- _id: FrPe
doi: 10.1029/2023JD040214
file:
- access_level: open_access
checksum: cad5b93caadb40c14e5faedc34f7bba7
content_type: application/pdf
creator: dernst
date_created: 2024-02-06T08:38:27Z
date_updated: 2024-02-06T08:38:27Z
file_id: '14943'
file_name: 2024_JGRAtmospheres_Shaw.pdf
file_size: 7481087
relation: main_file
success: 1
file_date_updated: 2024-02-06T08:38:27Z
has_accepted_license: '1'
intvolume: ' 129'
issue: '2'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
publication: 'Journal of Geophysical Research: Atmospheres'
publication_identifier:
eissn:
- 2169-8996
issn:
- 2169-897X
publication_status: published
publisher: Wiley
quality_controlled: '1'
related_material:
record:
- id: '14919'
relation: research_data
status: public
scopus_import: '1'
status: public
title: Local controls on near-surface glacier cooling under warm atmospheric conditions
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: 129
year: '2024'
...
---
_id: '14938'
abstract:
- lang: eng
text: High elevation headwater catchments are complex hydrological systems that
seasonally buffer water and release it in the form of snow and ice melt, modulating
downstream runoff regimes and water availability. In High Mountain Asia (HMA),
where a wide range of climates from semi-arid to monsoonal exist, the importance
of the cryospheric contributions to the water budget varies with the amount and
seasonal distribution of precipitation. Losses due to evapotranspiration and sublimation
are to date largely unquantified components of the water budget in such catchments,
although they can be comparable in magnitude to glacier melt contributions to
streamflow. 
Here, we simulate the hydrology of three high elevation headwater
catchments in distinct climates in HMA over 10 years using an ecohydrological
model geared towards high-mountain areas including snow and glaciers, forced with
reanalysis data. 
Our results show that evapotranspiration and sublimation
together are most important at the semi-arid site, Kyzylsu, on the northernmost
slopes of the Pamir mountain range. Here, the evaporative loss amounts to 28%
of the water throughput, which we define as the total water added to, or removed
from the water balance within a year. In comparison, evaporative losses are 19%
at the Central Himalayan site Langtang and 13% at the wettest site, 24K, on the
Southeastern Tibetan Plateau. At the three sites, respectively, sublimation removes
15%, 13% and 6% of snowfall, while evapotranspiration removes the equivalent of
76%, 28% and 19% of rainfall. In absolute terms, and across a comparable elevation
range, the highest ET flux is 413 mm yr-1 at 24K, while the highest sublimation
flux is 91 mm yr-1 at Kyzylsu. During warm and dry years, glacier melt was found
to only partially compensate for the annual supply deficit.
article_processing_charge: Yes
article_type: original
author:
- first_name: Stefan
full_name: Fugger, Stefan
id: 86698d64-c4c6-11ee-af02-cdf1e6a7d31f
last_name: Fugger
- first_name: Thomas
full_name: Shaw, Thomas
id: 3caa3f91-1f03-11ee-96ce-e0e553054d6e
last_name: Shaw
orcid: 0000-0001-7640-6152
- first_name: Achille
full_name: Jouberton, Achille
last_name: Jouberton
- first_name: Evan
full_name: Miles, Evan
last_name: Miles
- first_name: Pascal
full_name: Buri, Pascal
id: 317987aa-9421-11ee-ac5a-b941b041abba
last_name: Buri
- first_name: Michael
full_name: McCarthy, Michael
id: 22a2674a-61ce-11ee-94b5-d18813baf16f
last_name: McCarthy
- first_name: Catriona Louise
full_name: Fyffe, Catriona Louise
id: 001b0422-8d15-11ed-bc51-cab6c037a228
last_name: Fyffe
- first_name: Simone
full_name: Fatichi, Simone
last_name: Fatichi
- first_name: Marin
full_name: Kneib, Marin
last_name: Kneib
- first_name: Peter
full_name: Molnar, Peter
last_name: Molnar
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
orcid: 0000-0002-5554-8087
citation:
ama: Fugger S, Shaw T, Jouberton A, et al. Hydrological regimes and evaporative
flux partitioning at the climatic ends of High Mountain Asia. Environmental
Research Letters. doi:10.1088/1748-9326/ad25a0
apa: Fugger, S., Shaw, T., Jouberton, A., Miles, E., Buri, P., McCarthy, M., … Pellicciotti,
F. (n.d.). Hydrological regimes and evaporative flux partitioning at the climatic
ends of High Mountain Asia. Environmental Research Letters. IOP Publishing.
https://doi.org/10.1088/1748-9326/ad25a0
chicago: Fugger, Stefan, Thomas Shaw, Achille Jouberton, Evan Miles, Pascal Buri,
Michael McCarthy, Catriona Louise Fyffe, et al. “Hydrological Regimes and Evaporative
Flux Partitioning at the Climatic Ends of High Mountain Asia.” Environmental
Research Letters. IOP Publishing, n.d. https://doi.org/10.1088/1748-9326/ad25a0.
ieee: S. Fugger et al., “Hydrological regimes and evaporative flux partitioning
at the climatic ends of High Mountain Asia,” Environmental Research Letters.
IOP Publishing.
ista: Fugger S, Shaw T, Jouberton A, Miles E, Buri P, McCarthy M, Fyffe CL, Fatichi
S, Kneib M, Molnar P, Pellicciotti F. Hydrological regimes and evaporative flux
partitioning at the climatic ends of High Mountain Asia. Environmental Research
Letters.
mla: Fugger, Stefan, et al. “Hydrological Regimes and Evaporative Flux Partitioning
at the Climatic Ends of High Mountain Asia.” Environmental Research Letters,
IOP Publishing, doi:10.1088/1748-9326/ad25a0.
short: S. Fugger, T. Shaw, A. Jouberton, E. Miles, P. Buri, M. McCarthy, C.L. Fyffe,
S. Fatichi, M. Kneib, P. Molnar, F. Pellicciotti, Environmental Research Letters
(n.d.).
date_created: 2024-02-05T09:01:11Z
date_published: 2024-02-02T00:00:00Z
date_updated: 2024-02-06T08:35:39Z
day: '02'
ddc:
- '550'
department:
- _id: FrPe
doi: 10.1088/1748-9326/ad25a0
has_accepted_license: '1'
keyword:
- Public Health
- Environmental and Occupational Health
- General Environmental Science
- Renewable Energy
- Sustainability and the Environment
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1088/1748-9326/ad25a0
month: '02'
oa: 1
oa_version: Published Version
publication: Environmental Research Letters
publication_identifier:
issn:
- 1748-9326
publication_status: accepted
publisher: IOP Publishing
quality_controlled: '1'
status: public
title: Hydrological regimes and evaporative flux partitioning at the climatic ends
of High Mountain Asia
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: '14213'
abstract:
- lang: eng
text: We introduce a method to segment the visual field into independently moving
regions, trained with no ground truth or supervision. It consists of an adversarial
conditional encoder-decoder architecture based on Slot Attention, modified to
use the image as context to decode optical flow without attempting to reconstruct
the image itself. In the resulting multi-modal representation, one modality (flow)
feeds the encoder to produce separate latent codes (slots), whereas the other
modality (image) conditions the decoder to generate the first (flow) from the
slots. This design frees the representation from having to encode complex nuisance
variability in the image due to, for instance, illumination and reflectance properties
of the scene. Since customary autoencoding based on minimizing the reconstruction
error does not preclude the entire flow from being encoded into a single slot,
we modify the loss to an adversarial criterion based on Contextual Information
Separation. The resulting min-max optimization fosters the separation of objects
and their assignment to different attention slots, leading to Divided Attention,
or DivA. DivA outperforms recent unsupervised multi-object motion segmentation
methods while tripling run-time speed up to 104FPS and reducing the performance
gap from supervised methods to 12% or less. DivA can handle different numbers
of objects and different image sizes at training and test time, is invariant to
permutation of object labels, and does not require explicit regularization.
article_processing_charge: No
author:
- first_name: Dong
full_name: Lao, Dong
last_name: Lao
- first_name: Zhengyang
full_name: Hu, Zhengyang
last_name: Hu
- first_name: Francesco
full_name: Locatello, Francesco
id: 26cfd52f-2483-11ee-8040-88983bcc06d4
last_name: Locatello
orcid: 0000-0002-4850-0683
- first_name: Yanchao
full_name: Yang, Yanchao
last_name: Yang
- first_name: Stefano
full_name: Soatto, Stefano
last_name: Soatto
citation:
ama: 'Lao D, Hu Z, Locatello F, Yang Y, Soatto S. Divided attention: Unsupervised
multi-object discovery with contextually separated slots. In: 1st Conference
on Parsimony and Learning. ; 2024.'
apa: 'Lao, D., Hu, Z., Locatello, F., Yang, Y., & Soatto, S. (2024). Divided
attention: Unsupervised multi-object discovery with contextually separated slots.
In 1st Conference on Parsimony and Learning. Hong Kong, China.'
chicago: 'Lao, Dong, Zhengyang Hu, Francesco Locatello, Yanchao Yang, and Stefano
Soatto. “Divided Attention: Unsupervised Multi-Object Discovery with Contextually
Separated Slots.” In 1st Conference on Parsimony and Learning, 2024.'
ieee: 'D. Lao, Z. Hu, F. Locatello, Y. Yang, and S. Soatto, “Divided attention:
Unsupervised multi-object discovery with contextually separated slots,” in 1st
Conference on Parsimony and Learning, Hong Kong, China, 2024.'
ista: 'Lao D, Hu Z, Locatello F, Yang Y, Soatto S. 2024. Divided attention: Unsupervised
multi-object discovery with contextually separated slots. 1st Conference on Parsimony
and Learning. CPAL: Conference on Parsimony and Learning.'
mla: 'Lao, Dong, et al. “Divided Attention: Unsupervised Multi-Object Discovery
with Contextually Separated Slots.” 1st Conference on Parsimony and Learning,
2024.'
short: D. Lao, Z. Hu, F. Locatello, Y. Yang, S. Soatto, in:, 1st Conference on Parsimony
and Learning, 2024.
conference:
end_date: 2024-01-03
location: Hong Kong, China
name: 'CPAL: Conference on Parsimony and Learning'
start_date: 2024-01-03
date_created: 2023-08-22T14:19:59Z
date_published: 2024-01-03T00:00:00Z
date_updated: 2024-02-12T08:56:23Z
day: '03'
ddc:
- '000'
department:
- _id: FrLo
external_id:
arxiv:
- '2304.01430'
file:
- access_level: open_access
checksum: 8fad894c34f1b3d5a14fb8ffb12f7277
content_type: application/pdf
creator: dernst
date_created: 2024-02-12T08:40:36Z
date_updated: 2024-02-12T08:40:36Z
file_id: '14978'
file_name: 2024_CPAL_Lao.pdf
file_size: 8038511
relation: main_file
success: 1
file_date_updated: 2024-02-12T08:40:36Z
has_accepted_license: '1'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
publication: 1st Conference on Parsimony and Learning
publication_status: published
quality_controlled: '1'
status: public
title: 'Divided attention: Unsupervised multi-object discovery with contextually separated
slots'
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2024'
...
---
_id: '14980'
abstract:
- lang: eng
text: Precision sensing and manipulation of milligram-scale mechanical oscillators
has attracted growing interest in the fields of table-top explorations of gravity
and tests of quantum mechanics at macroscopic scales. Torsional oscillators present
an opportunity in this regard due to their remarked isolation from environmental
noise. For torsional motion, an effective employment of optical cavities to enhance
optomechanical interactions—as already established for linear oscillators—so far
faced certain challenges. Here, we propose a concept for sensing and manipulating
torsional motion, where exclusively the torsional rotations of a pendulum are
mapped onto the path length of a single two-mirror optical cavity. The concept
inherently alleviates many limitations of previous approaches. A proof-of-principle
experiment is conducted with a rigidly controlled pendulum to explore the sensing
aspects of the concept and to identify practical limitations in a potential state-of-the
art setup. Based on this study, we anticipate development of precision torque
sensors utilizing torsional pendulums that can support sensitivities below 10−19Nm/√Hz,
while the motion of the pendulums are dominated by quantum radiation pressure
noise at sub-microwatts of incoming laser power. These developments will provide
horizons for experiments at the interface of quantum mechanics and gravity.
acknowledgement: "We thank Pere Rosselló for his contributions to the initial modeling
of the presented sensing technique. This work was supported by Institute of Science
and Technology Austria, and\r\nthe European Research Council under Grant No. 101087907
(ERC CoG QuHAMP)."
article_number: '013141'
article_processing_charge: Yes
article_type: original
author:
- first_name: Sofya
full_name: Agafonova, Sofya
id: 09501ff6-dca7-11ea-a8ae-b3e0b9166e80
last_name: Agafonova
orcid: 0000-0003-0582-2946
- first_name: Umang
full_name: Mishra, Umang
id: 4328fa4c-f128-11eb-9611-c107b0fe4d51
last_name: Mishra
- first_name: Fritz R
full_name: Diorico, Fritz R
id: 2E054C4C-F248-11E8-B48F-1D18A9856A87
last_name: Diorico
orcid: 0000-0002-4947-8924
- first_name: Onur
full_name: Hosten, Onur
id: 4C02D85E-F248-11E8-B48F-1D18A9856A87
last_name: Hosten
orcid: 0000-0002-2031-204X
citation:
ama: Agafonova S, Mishra U, Diorico FR, Hosten O. Zigzag optical cavity for sensing
and controlling torsional motion. Physical Review Research. 2024;6(1).
doi:10.1103/physrevresearch.6.013141
apa: Agafonova, S., Mishra, U., Diorico, F. R., & Hosten, O. (2024). Zigzag
optical cavity for sensing and controlling torsional motion. Physical Review
Research. American Physical Society. https://doi.org/10.1103/physrevresearch.6.013141
chicago: Agafonova, Sofya, Umang Mishra, Fritz R Diorico, and Onur Hosten. “Zigzag
Optical Cavity for Sensing and Controlling Torsional Motion.” Physical Review
Research. American Physical Society, 2024. https://doi.org/10.1103/physrevresearch.6.013141.
ieee: S. Agafonova, U. Mishra, F. R. Diorico, and O. Hosten, “Zigzag optical cavity
for sensing and controlling torsional motion,” Physical Review Research,
vol. 6, no. 1. American Physical Society, 2024.
ista: Agafonova S, Mishra U, Diorico FR, Hosten O. 2024. Zigzag optical cavity for
sensing and controlling torsional motion. Physical Review Research. 6(1), 013141.
mla: Agafonova, Sofya, et al. “Zigzag Optical Cavity for Sensing and Controlling
Torsional Motion.” Physical Review Research, vol. 6, no. 1, 013141, American
Physical Society, 2024, doi:10.1103/physrevresearch.6.013141.
short: S. Agafonova, U. Mishra, F.R. Diorico, O. Hosten, Physical Review Research
6 (2024).
date_created: 2024-02-12T11:42:18Z
date_published: 2024-02-05T00:00:00Z
date_updated: 2024-02-12T11:49:06Z
day: '05'
ddc:
- '530'
department:
- _id: OnHo
doi: 10.1103/physrevresearch.6.013141
external_id:
arxiv:
- '2306.12804'
file:
- access_level: open_access
checksum: 3a39ebffb24c1cc1dd0b547a726dc52d
content_type: application/pdf
creator: dernst
date_created: 2024-02-12T11:46:50Z
date_updated: 2024-02-12T11:46:50Z
file_id: '14981'
file_name: 2024_PhysicalRevResearch_Agafonova.pdf
file_size: 1437167
relation: main_file
success: 1
file_date_updated: 2024-02-12T11:46:50Z
has_accepted_license: '1'
intvolume: ' 6'
issue: '1'
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
project:
- _id: bdb2a702-d553-11ed-ba76-f12e3e5a3bc6
grant_number: '101087907'
name: 'A quantum hybrid of atoms and milligram-scale pendulums: towards gravitational
quantum mechanics'
publication: Physical Review Research
publication_identifier:
eissn:
- 2643-1564
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
status: public
title: Zigzag optical cavity for sensing and controlling torsional motion
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'
...