---
OA_place: publisher
_id: '839'
abstract:
- lang: eng
text: 'This thesis describes a brittle fracture simulation method for visual effects
applications. Building upon a symmetric Galerkin boundary element method, we first
compute stress intensity factors following the theory of linear elastic fracture
mechanics. We then use these stress intensities to simulate the motion of a propagating
crack front at a significantly higher resolution than the overall deformation
of the breaking object. Allowing for spatial variations of the material''s toughness
during crack propagation produces visually realistic, highly-detailed fracture
surfaces. Furthermore, we introduce approximations for stress intensities and
crack opening displacements, resulting in both practical speed-up and theoretically
superior runtime complexity compared to previous methods. While we choose a quasi-static
approach to fracture mechanics, ignoring dynamic deformations, we also couple
our fracture simulation framework to a standard rigid-body dynamics solver, enabling
visual effects artists to simulate both large scale motion, as well as fracturing
due to collision forces in a combined system. As fractures inside of an object
grow, their geometry must be represented both in the coarse boundary element mesh,
as well as at the desired fine output resolution. Using a boundary element method,
we avoid complicated volumetric meshing operations. Instead we describe a simple
set of surface meshing operations that allow us to progressively add cracks to
the mesh of an object and still re-use all previously computed entries of the
linear boundary element system matrix. On the high resolution level, we opt for
an implicit surface representation. We then describe how to capture fracture surfaces
during crack propagation, as well as separate the individual fragments resulting
from the fracture process, based on this implicit representation. We show results
obtained with our method, either solving the full boundary element system in every
time step, or alternatively using our fast approximations. These results demonstrate
that both of these methods perform well in basic test cases and produce realistic
fracture surfaces. Furthermore we show that our fast approximations substantially
out-perform the standard approach in more demanding scenarios. Finally, these
two methods naturally combine, using the full solution while the problem size
is manageably small and switching to the fast approximations later on. The resulting
hybrid method gives the user a direct way to choose between speed and accuracy
of the simulation. '
acknowledgement: "ERC H2020 programme (grant agreement no. 638176)\r\nFirst of all,
let me thank my committee members, especially my supervisor, Chris\r\nWojtan, for
supporting me throughout my PhD. Obviously, none of this work would\r\nhave been
possible without you.\r\nFurthermore, Thank You to all the people who have contributed
to this work in various\r\nways, in particular Martin Schanz and his group for providing
and supporting the\r\nHyENA boundary element library, as well as Eder Miguel and
Morten Bojsen-Hansen\r\nfor (repeatedly) proof reading and providing valuable suggestions
during the writing\r\nof this thesis.\r\nI would also like to thank Bernd Bickel,
and all the members – past and present – of his\r\nand Chris’ research groups at
IST Austria for always providing honest and insightful\r\nfeedback throughout many
joint group meetings, as well as Christopher Batty, Eitan\r\nGrinspun, and Fang
Da for many insights into boundary element methods during our\r\ncollaboration.\r\nAs
only virtual objects have been harmed in the process of creating this work, I would\r\nlike
to acknowledge the Stanford scanning repository for providing the “Bunny” and\r\n“Armadillo”
models, the AIM@SHAPE repository for “Pierre’s hand, watertight”, and\r\nS. Gainsbourg
for the “Column” via Archive3D.net. Sorry for breaking these models\r\nin many different
ways.\r\n"
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: David
full_name: Hahn, David
id: 357A6A66-F248-11E8-B48F-1D18A9856A87
last_name: Hahn
citation:
ama: Hahn D. Brittle fracture simulation with boundary elements for computer graphics.
2017. doi:10.15479/AT:ISTA:th_855
apa: Hahn, D. (2017). Brittle fracture simulation with boundary elements for
computer graphics. Institute of Science and Technology Austria. https://doi.org/10.15479/AT:ISTA:th_855
chicago: Hahn, David. “Brittle Fracture Simulation with Boundary Elements for Computer
Graphics.” Institute of Science and Technology Austria, 2017. https://doi.org/10.15479/AT:ISTA:th_855.
ieee: D. Hahn, “Brittle fracture simulation with boundary elements for computer
graphics,” Institute of Science and Technology Austria, 2017.
ista: Hahn D. 2017. Brittle fracture simulation with boundary elements for computer
graphics. Institute of Science and Technology Austria.
mla: Hahn, David. Brittle Fracture Simulation with Boundary Elements for Computer
Graphics. Institute of Science and Technology Austria, 2017, doi:10.15479/AT:ISTA:th_855.
short: D. Hahn, Brittle Fracture Simulation with Boundary Elements for Computer
Graphics, Institute of Science and Technology Austria, 2017.
corr_author: '1'
date_created: 2018-12-11T11:48:47Z
date_published: 2017-08-14T00:00:00Z
date_updated: 2026-04-08T14:20:16Z
day: '14'
ddc:
- '004'
- '005'
- '006'
- '531'
- '621'
degree_awarded: PhD
department:
- _id: ChWo
doi: 10.15479/AT:ISTA:th_855
ec_funded: 1
file:
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checksum: 6c1ae8c90bfaba5e089417fefbc4a272
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:14:46Z
date_updated: 2020-07-14T12:48:13Z
file_id: '5100'
file_name: IST-2017-855-v1+1_thesis_online_pdfA.pdf
file_size: 14596191
relation: main_file
- access_level: closed
checksum: 421672f68d563b029869c5cf1713f919
content_type: application/zip
creator: dernst
date_created: 2019-04-05T08:40:30Z
date_updated: 2020-07-14T12:48:13Z
file_id: '6207'
file_name: 2017_thesis_Hahn_source.zip
file_size: 15060566
relation: source_file
file_date_updated: 2020-07-14T12:48:13Z
has_accepted_license: '1'
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
page: '124'
project:
- _id: 2533E772-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '638176'
name: 'Big Splash: Efficient Simulation of Natural Phenomena at Extremely Large
Scales'
publication_identifier:
issn:
- 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
publist_id: '6809'
pubrep_id: '855'
related_material:
record:
- id: '5568'
relation: popular_science
status: public
- id: '1362'
relation: part_of_dissertation
status: public
- id: '1633'
relation: part_of_dissertation
status: public
status: public
supervisor:
- first_name: Christopher J
full_name: Wojtan, Christopher J
id: 3C61F1D2-F248-11E8-B48F-1D18A9856A87
last_name: Wojtan
orcid: 0000-0001-6646-5546
title: Brittle fracture simulation with boundary elements for computer graphics
tmp:
image: /images/cc_by_sa.png
legal_code_url: https://creativecommons.org/licenses/by-sa/4.0/legalcode
name: Creative Commons Attribution-ShareAlike 4.0 International Public License (CC
BY-SA 4.0)
short: CC BY-SA (4.0)
type: dissertation
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
year: '2017'
...
---
_id: '840'
abstract:
- lang: eng
text: Heavy holes confined in quantum dots are predicted to be promising candidates
for the realization of spin qubits with long coherence times. Here we focus on
such heavy-hole states confined in germanium hut wires. By tuning the growth density
of the latter we can realize a T-like structure between two neighboring wires.
Such a structure allows the realization of a charge sensor, which is electrostatically
and tunnel coupled to a quantum dot, with charge-transfer signals as high as 0.3
e. By integrating the T-like structure into a radiofrequency reflectometry setup,
single-shot measurements allowing the extraction of hole tunneling times are performed.
The extracted tunneling times of less than 10 μs are attributed to the small effective
mass of Ge heavy-hole states and pave the way toward projective spin readout measurements.
acknowledged_ssus:
- _id: M-Shop
article_processing_charge: No
author:
- first_name: Lada
full_name: Vukusic, Lada
id: 31E9F056-F248-11E8-B48F-1D18A9856A87
last_name: Vukusic
orcid: 0000-0003-2424-8636
- first_name: Josip
full_name: Kukucka, Josip
id: 3F5D8856-F248-11E8-B48F-1D18A9856A87
last_name: Kukucka
- first_name: Hannes
full_name: Watzinger, Hannes
id: 35DF8E50-F248-11E8-B48F-1D18A9856A87
last_name: Watzinger
- first_name: Georgios
full_name: Katsaros, Georgios
id: 38DB5788-F248-11E8-B48F-1D18A9856A87
last_name: Katsaros
orcid: 0000-0001-8342-202X
citation:
ama: Vukušić L, Kukucka J, Watzinger H, Katsaros G. Fast hole tunneling times in
germanium hut wires probed by single-shot reflectometry. Nano Letters.
2017;17(9):5706-5710. doi:10.1021/acs.nanolett.7b02627
apa: Vukušić, L., Kukucka, J., Watzinger, H., & Katsaros, G. (2017). Fast hole
tunneling times in germanium hut wires probed by single-shot reflectometry. Nano
Letters. American Chemical Society. https://doi.org/10.1021/acs.nanolett.7b02627
chicago: Vukušić, Lada, Josip Kukucka, Hannes Watzinger, and Georgios Katsaros.
“Fast Hole Tunneling Times in Germanium Hut Wires Probed by Single-Shot Reflectometry.”
Nano Letters. American Chemical Society, 2017. https://doi.org/10.1021/acs.nanolett.7b02627.
ieee: L. Vukušić, J. Kukucka, H. Watzinger, and G. Katsaros, “Fast hole tunneling
times in germanium hut wires probed by single-shot reflectometry,” Nano Letters,
vol. 17, no. 9. American Chemical Society, pp. 5706–5710, 2017.
ista: Vukušić L, Kukucka J, Watzinger H, Katsaros G. 2017. Fast hole tunneling times
in germanium hut wires probed by single-shot reflectometry. Nano Letters. 17(9),
5706–5710.
mla: Vukušić, Lada, et al. “Fast Hole Tunneling Times in Germanium Hut Wires Probed
by Single-Shot Reflectometry.” Nano Letters, vol. 17, no. 9, American Chemical
Society, 2017, pp. 5706–10, doi:10.1021/acs.nanolett.7b02627.
short: L. Vukušić, J. Kukucka, H. Watzinger, G. Katsaros, Nano Letters 17 (2017)
5706–5710.
corr_author: '1'
date_created: 2018-12-11T11:48:47Z
date_published: 2017-08-10T00:00:00Z
date_updated: 2026-04-08T14:09:47Z
day: '10'
ddc:
- '539'
department:
- _id: GeKa
doi: 10.1021/acs.nanolett.7b02627
ec_funded: 1
external_id:
isi:
- '000411043500078'
file:
- access_level: open_access
checksum: 761371a0129b2aa442424b9561450ece
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:12:33Z
date_updated: 2020-07-14T12:48:13Z
file_id: '4951'
file_name: IST-2017-865-v1+1_acs.nanolett.7b02627.pdf
file_size: 2449546
relation: main_file
file_date_updated: 2020-07-14T12:48:13Z
has_accepted_license: '1'
intvolume: ' 17'
isi: 1
issue: '9'
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
page: 5706 - 5710
project:
- _id: 25517E86-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '335497'
name: Towards Spin qubits and Majorana fermions in Germanium self assembled hut-wires
publication: Nano Letters
publication_identifier:
issn:
- 1530-6984
publication_status: published
publisher: American Chemical Society
publist_id: '6808'
pubrep_id: '865'
quality_controlled: '1'
related_material:
record:
- id: '7977'
relation: popular_science
- id: '7996'
relation: dissertation_contains
status: public
- id: '69'
relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: Fast hole tunneling times in germanium hut wires probed by single-shot reflectometry
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 17
year: '2017'
...
---
_id: '8423'
abstract:
- lang: eng
text: In this paper we show that for a generic strictly convex domain, one can recover
the eigendata corresponding to Aubry–Mather periodic orbits of the induced billiard
map from the (maximal) marked length spectrum of the domain.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Guan
full_name: Huang, Guan
last_name: Huang
- first_name: Vadim
full_name: Kaloshin, Vadim
id: FE553552-CDE8-11E9-B324-C0EBE5697425
last_name: Kaloshin
orcid: 0000-0002-6051-2628
- first_name: Alfonso
full_name: Sorrentino, Alfonso
last_name: Sorrentino
citation:
ama: Huang G, Kaloshin V, Sorrentino A. On the marked length spectrum of generic
strictly convex billiard tables. Duke Mathematical Journal. 2017;167(1):175-209.
doi:10.1215/00127094-2017-0038
apa: Huang, G., Kaloshin, V., & Sorrentino, A. (2017). On the marked length
spectrum of generic strictly convex billiard tables. Duke Mathematical Journal.
Duke University Press. https://doi.org/10.1215/00127094-2017-0038
chicago: Huang, Guan, Vadim Kaloshin, and Alfonso Sorrentino. “On the Marked Length
Spectrum of Generic Strictly Convex Billiard Tables.” Duke Mathematical Journal.
Duke University Press, 2017. https://doi.org/10.1215/00127094-2017-0038.
ieee: G. Huang, V. Kaloshin, and A. Sorrentino, “On the marked length spectrum of
generic strictly convex billiard tables,” Duke Mathematical Journal, vol.
167, no. 1. Duke University Press, pp. 175–209, 2017.
ista: Huang G, Kaloshin V, Sorrentino A. 2017. On the marked length spectrum of
generic strictly convex billiard tables. Duke Mathematical Journal. 167(1), 175–209.
mla: Huang, Guan, et al. “On the Marked Length Spectrum of Generic Strictly Convex
Billiard Tables.” Duke Mathematical Journal, vol. 167, no. 1, Duke University
Press, 2017, pp. 175–209, doi:10.1215/00127094-2017-0038.
short: G. Huang, V. Kaloshin, A. Sorrentino, Duke Mathematical Journal 167 (2017)
175–209.
date_created: 2020-09-17T10:42:42Z
date_published: 2017-12-08T00:00:00Z
date_updated: 2021-01-12T08:19:11Z
day: '08'
doi: 10.1215/00127094-2017-0038
extern: '1'
external_id:
arxiv:
- '1603.08838'
intvolume: ' 167'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1603.08838
month: '12'
oa: 1
oa_version: Preprint
page: 175-209
publication: Duke Mathematical Journal
publication_identifier:
issn:
- 0012-7094
publication_status: published
publisher: Duke University Press
quality_controlled: '1'
status: public
title: On the marked length spectrum of generic strictly convex billiard tables
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 167
year: '2017'
...
---
_id: '8427'
abstract:
- lang: eng
text: We show that any sufficiently (finitely) smooth ℤ₂-symmetric strictly convex
domain sufficiently close to a circle is dynamically spectrally rigid; i.e., all
deformations among domains in the same class that preserve the length of all periodic
orbits of the associated billiard flow must necessarily be isometric deformations.
This gives a partial answer to a question of P. Sarnak.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Jacopo
full_name: De Simoi, Jacopo
last_name: De Simoi
- first_name: Vadim
full_name: Kaloshin, Vadim
id: FE553552-CDE8-11E9-B324-C0EBE5697425
last_name: Kaloshin
orcid: 0000-0002-6051-2628
- first_name: Qiaoling
full_name: Wei, Qiaoling
last_name: Wei
citation:
ama: De Simoi J, Kaloshin V, Wei Q. Dynamical spectral rigidity among Z2-symmetric
strictly convex domains close to a circle. Annals of Mathematics. 2017;186(1):277-314.
doi:10.4007/annals.2017.186.1.7
apa: De Simoi, J., Kaloshin, V., & Wei, Q. (2017). Dynamical spectral rigidity
among Z2-symmetric strictly convex domains close to a circle. Annals of Mathematics.
Annals of Mathematics. https://doi.org/10.4007/annals.2017.186.1.7
chicago: De Simoi, Jacopo, Vadim Kaloshin, and Qiaoling Wei. “Dynamical Spectral
Rigidity among Z2-Symmetric Strictly Convex Domains Close to a Circle.” Annals
of Mathematics. Annals of Mathematics, 2017. https://doi.org/10.4007/annals.2017.186.1.7.
ieee: J. De Simoi, V. Kaloshin, and Q. Wei, “Dynamical spectral rigidity among Z2-symmetric
strictly convex domains close to a circle,” Annals of Mathematics, vol.
186, no. 1. Annals of Mathematics, pp. 277–314, 2017.
ista: De Simoi J, Kaloshin V, Wei Q. 2017. Dynamical spectral rigidity among Z2-symmetric
strictly convex domains close to a circle. Annals of Mathematics. 186(1), 277–314.
mla: De Simoi, Jacopo, et al. “Dynamical Spectral Rigidity among Z2-Symmetric Strictly
Convex Domains Close to a Circle.” Annals of Mathematics, vol. 186, no.
1, Annals of Mathematics, 2017, pp. 277–314, doi:10.4007/annals.2017.186.1.7.
short: J. De Simoi, V. Kaloshin, Q. Wei, Annals of Mathematics 186 (2017) 277–314.
date_created: 2020-09-17T10:46:42Z
date_published: 2017-07-01T00:00:00Z
date_updated: 2021-01-12T08:19:12Z
day: '01'
doi: 10.4007/annals.2017.186.1.7
extern: '1'
external_id:
arxiv:
- '1606.00230'
intvolume: ' 186'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1606.00230
month: '07'
oa: 1
oa_version: Preprint
page: 277-314
publication: Annals of Mathematics
publication_identifier:
issn:
- 0003-486X
publication_status: published
publisher: Annals of Mathematics
quality_controlled: '1'
status: public
title: Dynamical spectral rigidity among Z2-symmetric strictly convex domains close
to a circle
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 186
year: '2017'
...
---
OA_place: publisher
OA_type: gold
_id: '8445'
abstract:
- lang: eng
text: Proteins perform their functions in solution but their structures are most
frequently studied inside crystals. Here we probe how the crystal packing alters
microsecond dynamics, using solid-state NMR measurements and multi-microsecond
MD simulations of different crystal forms of ubiquitin. In particular, near-rotary-resonance
relaxation dispersion (NERRD) experiments probe angular backbone motion, while
Bloch–McConnell relaxation dispersion data report on fluctuations of the local
electronic environment. These experiments and simulations reveal that the packing
of the protein can significantly alter the thermodynamics and kinetics of local
conformational exchange. Moreover, we report small-amplitude reorientational motion
of protein molecules in the crystal lattice with an ~3–5° amplitude on a tens-of-microseconds
time scale in one of the crystals, but not in others. An intriguing possibility
arises that overall motion is to some extent coupled to local dynamics. Our study
highlights the importance of considering the packing when analyzing dynamics of
crystalline proteins.
article_number: '145'
article_processing_charge: Yes
article_type: original
author:
- first_name: Vilius
full_name: Kurauskas, Vilius
last_name: Kurauskas
- first_name: Sergei A.
full_name: Izmailov, Sergei A.
last_name: Izmailov
- first_name: Olga N.
full_name: Rogacheva, Olga N.
last_name: Rogacheva
- first_name: Audrey
full_name: Hessel, Audrey
last_name: Hessel
- first_name: Isabel
full_name: Ayala, Isabel
last_name: Ayala
- first_name: Joyce
full_name: Woodhouse, Joyce
last_name: Woodhouse
- first_name: Anastasya
full_name: Shilova, Anastasya
last_name: Shilova
- first_name: Yi
full_name: Xue, Yi
last_name: Xue
- first_name: Tairan
full_name: Yuwen, Tairan
last_name: Yuwen
- first_name: Nicolas
full_name: Coquelle, Nicolas
last_name: Coquelle
- first_name: Jacques-Philippe
full_name: Colletier, Jacques-Philippe
last_name: Colletier
- first_name: Nikolai R.
full_name: Skrynnikov, Nikolai R.
last_name: Skrynnikov
- first_name: Paul
full_name: Schanda, Paul
id: 7B541462-FAF6-11E9-A490-E8DFE5697425
last_name: Schanda
orcid: 0000-0002-9350-7606
citation:
ama: Kurauskas V, Izmailov SA, Rogacheva ON, et al. Slow conformational exchange
and overall rocking motion in ubiquitin protein crystals. Nature Communications.
2017;8. doi:10.1038/s41467-017-00165-8
apa: Kurauskas, V., Izmailov, S. A., Rogacheva, O. N., Hessel, A., Ayala, I., Woodhouse,
J., … Schanda, P. (2017). Slow conformational exchange and overall rocking motion
in ubiquitin protein crystals. Nature Communications. Springer Nature.
https://doi.org/10.1038/s41467-017-00165-8
chicago: Kurauskas, Vilius, Sergei A. Izmailov, Olga N. Rogacheva, Audrey Hessel,
Isabel Ayala, Joyce Woodhouse, Anastasya Shilova, et al. “Slow Conformational
Exchange and Overall Rocking Motion in Ubiquitin Protein Crystals.” Nature
Communications. Springer Nature, 2017. https://doi.org/10.1038/s41467-017-00165-8.
ieee: V. Kurauskas et al., “Slow conformational exchange and overall rocking
motion in ubiquitin protein crystals,” Nature Communications, vol. 8. Springer
Nature, 2017.
ista: Kurauskas V, Izmailov SA, Rogacheva ON, Hessel A, Ayala I, Woodhouse J, Shilova
A, Xue Y, Yuwen T, Coquelle N, Colletier J-P, Skrynnikov NR, Schanda P. 2017.
Slow conformational exchange and overall rocking motion in ubiquitin protein crystals.
Nature Communications. 8, 145.
mla: Kurauskas, Vilius, et al. “Slow Conformational Exchange and Overall Rocking
Motion in Ubiquitin Protein Crystals.” Nature Communications, vol. 8, 145,
Springer Nature, 2017, doi:10.1038/s41467-017-00165-8.
short: V. Kurauskas, S.A. Izmailov, O.N. Rogacheva, A. Hessel, I. Ayala, J. Woodhouse,
A. Shilova, Y. Xue, T. Yuwen, N. Coquelle, J.-P. Colletier, N.R. Skrynnikov, P.
Schanda, Nature Communications 8 (2017).
date_created: 2020-09-18T10:06:01Z
date_published: 2017-07-27T00:00:00Z
date_updated: 2025-01-22T14:32:38Z
day: '27'
doi: 10.1038/s41467-017-00165-8
extern: '1'
intvolume: ' 8'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1038/s41467-017-00165-8
month: '07'
oa: 1
oa_version: Published Version
publication: Nature Communications
publication_identifier:
issn:
- 2041-1723
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Slow conformational exchange and overall rocking motion in ubiquitin protein
crystals
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 8
year: '2017'
...
---
_id: '909'
abstract:
- lang: eng
text: We study the lengths of curves passing through a fixed number of points on
the boundary of a convex shape in the plane. We show that, for any convex shape
K, there exist four points on the boundary of K such that the length of any curve
passing through these points is at least half of the perimeter of K. It is also
shown that the same statement does not remain valid with the additional constraint
that the points are extreme points of K. Moreover, the factor ½ cannot
be achieved with any fixed number of extreme points. We conclude the paper with
a few other inequalities related to the perimeter of a convex shape.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Arseniy
full_name: Akopyan, Arseniy
id: 430D2C90-F248-11E8-B48F-1D18A9856A87
last_name: Akopyan
orcid: 0000-0002-2548-617X
- first_name: Vladislav
full_name: Vysotsky, Vladislav
last_name: Vysotsky
citation:
ama: Akopyan A, Vysotsky V. On the lengths of curves passing through boundary points
of a planar convex shape. The American Mathematical Monthly. 2017;124(7):588-596.
doi:10.4169/amer.math.monthly.124.7.588
apa: Akopyan, A., & Vysotsky, V. (2017). On the lengths of curves passing through
boundary points of a planar convex shape. The American Mathematical Monthly.
Mathematical Association of America. https://doi.org/10.4169/amer.math.monthly.124.7.588
chicago: Akopyan, Arseniy, and Vladislav Vysotsky. “On the Lengths of Curves Passing
through Boundary Points of a Planar Convex Shape.” The American Mathematical
Monthly. Mathematical Association of America, 2017. https://doi.org/10.4169/amer.math.monthly.124.7.588.
ieee: A. Akopyan and V. Vysotsky, “On the lengths of curves passing through boundary
points of a planar convex shape,” The American Mathematical Monthly, vol.
124, no. 7. Mathematical Association of America, pp. 588–596, 2017.
ista: Akopyan A, Vysotsky V. 2017. On the lengths of curves passing through boundary
points of a planar convex shape. The American Mathematical Monthly. 124(7), 588–596.
mla: Akopyan, Arseniy, and Vladislav Vysotsky. “On the Lengths of Curves Passing
through Boundary Points of a Planar Convex Shape.” The American Mathematical
Monthly, vol. 124, no. 7, Mathematical Association of America, 2017, pp. 588–96,
doi:10.4169/amer.math.monthly.124.7.588.
short: A. Akopyan, V. Vysotsky, The American Mathematical Monthly 124 (2017) 588–596.
date_created: 2018-12-11T11:49:09Z
date_published: 2017-01-01T00:00:00Z
date_updated: 2025-07-10T12:01:35Z
day: '01'
department:
- _id: HeEd
doi: 10.4169/amer.math.monthly.124.7.588
ec_funded: 1
external_id:
arxiv:
- '1605.07997'
isi:
- '000413947300002'
intvolume: ' 124'
isi: 1
issue: '7'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1605.07997
month: '01'
oa: 1
oa_version: Submitted Version
page: 588 - 596
project:
- _id: 25681D80-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '291734'
name: International IST Postdoc Fellowship Programme
publication: The American Mathematical Monthly
publication_identifier:
issn:
- 0002-9890
publication_status: published
publisher: Mathematical Association of America
publist_id: '6534'
quality_controlled: '1'
scopus_import: '1'
status: public
title: On the lengths of curves passing through boundary points of a planar convex
shape
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 124
year: '2017'
...
---
_id: '910'
abstract:
- lang: eng
text: "Frequency-independent selection is generally considered as a force that acts
to reduce the genetic variation in evolving populations, yet rigorous arguments
for this idea are scarce. When selection fluctuates in time, it is unclear whether
frequency-independent selection may maintain genetic polymorphism without invoking
additional mechanisms. We show that constant frequency-independent selection with
arbitrary epistasis on a well-mixed haploid population eliminates genetic variation
if we assume linkage equilibrium between alleles. To this end, we introduce the
notion of frequency-independent selection at the level of alleles, which is sufficient
to prove our claim and contains the notion of frequency-independent selection
on haploids. When selection and recombination are weak but of the same order,
there may be strong linkage disequilibrium; numerical calculations show that stable
equilibria are highly unlikely. Using the example of a diallelic two-locus model,
we then demonstrate that frequency-independent selection that fluctuates in time
can maintain stable polymorphism if linkage disequilibrium changes its sign periodically.
We put our findings in the context of results from the existing literature and
point out those scenarios in which the possible role of frequency-independent
selection in maintaining genetic variation remains unclear.\r\n"
article_processing_charge: No
author:
- first_name: Sebastian
full_name: Novak, Sebastian
id: 461468AE-F248-11E8-B48F-1D18A9856A87
last_name: Novak
orcid: 0000-0002-2519-824X
- first_name: Nicholas H
full_name: Barton, Nicholas H
id: 4880FE40-F248-11E8-B48F-1D18A9856A87
last_name: Barton
orcid: 0000-0002-8548-5240
citation:
ama: Novak S, Barton NH. When does frequency-independent selection maintain genetic
variation? Genetics. 2017;207(2):653-668. doi:10.1534/genetics.117.300129
apa: Novak, S., & Barton, N. H. (2017). When does frequency-independent selection
maintain genetic variation? Genetics. Genetics Society of America. https://doi.org/10.1534/genetics.117.300129
chicago: Novak, Sebastian, and Nicholas H Barton. “When Does Frequency-Independent
Selection Maintain Genetic Variation?” Genetics. Genetics Society of America,
2017. https://doi.org/10.1534/genetics.117.300129.
ieee: S. Novak and N. H. Barton, “When does frequency-independent selection maintain
genetic variation?,” Genetics, vol. 207, no. 2. Genetics Society of America,
pp. 653–668, 2017.
ista: Novak S, Barton NH. 2017. When does frequency-independent selection maintain
genetic variation? Genetics. 207(2), 653–668.
mla: Novak, Sebastian, and Nicholas H. Barton. “When Does Frequency-Independent
Selection Maintain Genetic Variation?” Genetics, vol. 207, no. 2, Genetics
Society of America, 2017, pp. 653–68, doi:10.1534/genetics.117.300129.
short: S. Novak, N.H. Barton, Genetics 207 (2017) 653–668.
corr_author: '1'
date_created: 2018-12-11T11:49:09Z
date_published: 2017-10-01T00:00:00Z
date_updated: 2025-04-15T08:22:21Z
day: '01'
ddc:
- '576'
department:
- _id: NiBa
doi: 10.1534/genetics.117.300129
ec_funded: 1
external_id:
isi:
- '000412232600019'
file:
- access_level: open_access
checksum: f7c32dabf52e6d9e709d9203761e39fd
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:17:12Z
date_updated: 2020-07-14T12:48:15Z
file_id: '5264'
file_name: IST-2018-974-v1+1_manuscript.pdf
file_size: 494268
relation: main_file
file_date_updated: 2020-07-14T12:48:15Z
has_accepted_license: '1'
intvolume: ' 207'
isi: 1
issue: '2'
language:
- iso: eng
month: '10'
oa: 1
oa_version: Submitted Version
page: 653 - 668
project:
- _id: 25B1EC9E-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '618091'
name: Speed of Adaptation in Population Genetics and Evolutionary Computation
publication: Genetics
publication_status: published
publisher: Genetics Society of America
publist_id: '6533'
pubrep_id: '974'
quality_controlled: '1'
scopus_import: '1'
status: public
title: When does frequency-independent selection maintain genetic variation?
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 207
year: '2017'
...
---
_id: '911'
abstract:
- lang: eng
text: We develop a probabilistic technique for colorizing grayscale natural images.
In light of the intrinsic uncertainty of this task, the proposed probabilistic
framework has numerous desirable properties. In particular, our model is able
to produce multiple plausible and vivid colorizations for a given grayscale image
and is one of the first colorization models to provide a proper stochastic sampling
scheme. Moreover, our training procedure is supported by a rigorous theoretical
framework that does not require any ad hoc heuristics and allows for efficient
modeling and learning of the joint pixel color distribution.We demonstrate strong
quantitative and qualitative experimental results on the CIFAR-10 dataset and
the challenging ILSVRC 2012 dataset.
article_processing_charge: No
arxiv: 1
author:
- first_name: Amélie
full_name: Royer, Amélie
id: 3811D890-F248-11E8-B48F-1D18A9856A87
last_name: Royer
orcid: 0000-0002-8407-0705
- first_name: Alexander
full_name: Kolesnikov, Alexander
id: 2D157DB6-F248-11E8-B48F-1D18A9856A87
last_name: Kolesnikov
- first_name: Christoph
full_name: Lampert, Christoph
id: 40C20FD2-F248-11E8-B48F-1D18A9856A87
last_name: Lampert
orcid: 0000-0001-8622-7887
citation:
ama: 'Royer A, Kolesnikov A, Lampert C. Probabilistic image colorization. In: BMVA
Press; 2017:85.1-85.12. doi:10.5244/c.31.85'
apa: 'Royer, A., Kolesnikov, A., & Lampert, C. (2017). Probabilistic image colorization
(p. 85.1-85.12). Presented at the BMVC: British Machine Vision Conference, London,
United Kingdom: BMVA Press. https://doi.org/10.5244/c.31.85'
chicago: Royer, Amélie, Alexander Kolesnikov, and Christoph Lampert. “Probabilistic
Image Colorization,” 85.1-85.12. BMVA Press, 2017. https://doi.org/10.5244/c.31.85.
ieee: 'A. Royer, A. Kolesnikov, and C. Lampert, “Probabilistic image colorization,”
presented at the BMVC: British Machine Vision Conference, London, United Kingdom,
2017, p. 85.1-85.12.'
ista: 'Royer A, Kolesnikov A, Lampert C. 2017. Probabilistic image colorization.
BMVC: British Machine Vision Conference, 85.1-85.12.'
mla: Royer, Amélie, et al. Probabilistic Image Colorization. BMVA Press,
2017, p. 85.1-85.12, doi:10.5244/c.31.85.
short: A. Royer, A. Kolesnikov, C. Lampert, in:, BMVA Press, 2017, p. 85.1-85.12.
conference:
end_date: 2017-09-07
location: London, United Kingdom
name: 'BMVC: British Machine Vision Conference'
start_date: 2017-09-04
corr_author: '1'
date_created: 2018-12-11T11:49:09Z
date_published: 2017-09-01T00:00:00Z
date_updated: 2026-04-08T07:26:44Z
day: '01'
ddc:
- '000'
department:
- _id: ChLa
doi: 10.5244/c.31.85
ec_funded: 1
external_id:
arxiv:
- '1705.04258'
file:
- access_level: open_access
content_type: application/pdf
creator: dernst
date_created: 2020-08-10T07:14:33Z
date_updated: 2020-08-10T07:14:33Z
file_id: '8224'
file_name: 2017_BMVC_Royer.pdf
file_size: 1625363
relation: main_file
success: 1
file_date_updated: 2020-08-10T07:14:33Z
has_accepted_license: '1'
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
page: 85.1-85.12
project:
- _id: 2532554C-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '308036'
name: Lifelong Learning of Visual Scene Understanding
publication_identifier:
eisbn:
- 190172560X
publication_status: published
publisher: BMVA Press
publist_id: '6532'
quality_controlled: '1'
related_material:
record:
- id: '8390'
relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: Probabilistic image colorization
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2017'
...
---
_id: '9137'
abstract:
- lang: eng
text: Pools of air cooled by partial rain evaporation span up to several hundreds
of kilometers in nature and typically last less than 1 day, ultimately losing
their identity to the large-scale flow. These fundamentally differ in character
from the radiatively-driven dry pools defining convective aggregation. Advancement
in remote sensing and in computer capabilities has promoted exploration of how
precipitation-induced cold pool processes modify the convective spectrum and life
cycle. This contribution surveys current understanding of such cold pools over
the tropical and subtropical oceans. In shallow convection with low rain rates,
the cold pools moisten, preserving the near-surface equivalent potential temperature
or increasing it if the surface moisture fluxes cannot ventilate beyond the new
surface layer; both conditions indicate downdraft origin air from within the boundary
layer. When rain rates exceed ∼ 2 mm h−1, convective-scale downdrafts can bring
down drier air of lower equivalent potential temperature from above the boundary
layer. The resulting density currents facilitate the lifting of locally thermodynamically
favorable air and can impose an arc-shaped mesoscale cloud organization. This
organization allows clouds capable of reaching 4–5 km within otherwise dry environments.
These are more commonly observed in the northern hemisphere trade wind regime,
where the flow to the intertropical convergence zone is unimpeded by the equator.
Their near-surface air properties share much with those shown from cold pools
sampled in the equatorial Indian Ocean. Cold pools are most effective at influencing
the mesoscale organization when the atmosphere is moist in the lower free troposphere
and dry above, suggesting an optimal range of water vapor paths. Outstanding questions
on the relationship between cold pools, their accompanying moisture distribution
and cloud cover are detailed further. Near-surface water vapor rings are documented
in one model inside but near the cold pool edge; these are not consistent with
observations, but do improve with smaller horizontal grid spacings.
article_processing_charge: No
article_type: original
author:
- first_name: Paquita
full_name: Zuidema, Paquita
last_name: Zuidema
- first_name: Giuseppe
full_name: Torri, Giuseppe
last_name: Torri
- first_name: Caroline J
full_name: Muller, Caroline J
id: f978ccb0-3f7f-11eb-b193-b0e2bd13182b
last_name: Muller
orcid: 0000-0001-5836-5350
- first_name: Arunchandra
full_name: Chandra, Arunchandra
last_name: Chandra
citation:
ama: Zuidema P, Torri G, Muller CJ, Chandra A. A survey of precipitation-induced
atmospheric cold pools over oceans and their interactions with the larger-scale
environment. Surveys in Geophysics. 2017;38(6):1283-1305. doi:10.1007/s10712-017-9447-x
apa: Zuidema, P., Torri, G., Muller, C. J., & Chandra, A. (2017). A survey of
precipitation-induced atmospheric cold pools over oceans and their interactions
with the larger-scale environment. Surveys in Geophysics. Springer Nature.
https://doi.org/10.1007/s10712-017-9447-x
chicago: Zuidema, Paquita, Giuseppe Torri, Caroline J Muller, and Arunchandra Chandra.
“A Survey of Precipitation-Induced Atmospheric Cold Pools over Oceans and Their
Interactions with the Larger-Scale Environment.” Surveys in Geophysics.
Springer Nature, 2017. https://doi.org/10.1007/s10712-017-9447-x.
ieee: P. Zuidema, G. Torri, C. J. Muller, and A. Chandra, “A survey of precipitation-induced
atmospheric cold pools over oceans and their interactions with the larger-scale
environment,” Surveys in Geophysics, vol. 38, no. 6. Springer Nature, pp.
1283–1305, 2017.
ista: Zuidema P, Torri G, Muller CJ, Chandra A. 2017. A survey of precipitation-induced
atmospheric cold pools over oceans and their interactions with the larger-scale
environment. Surveys in Geophysics. 38(6), 1283–1305.
mla: Zuidema, Paquita, et al. “A Survey of Precipitation-Induced Atmospheric Cold
Pools over Oceans and Their Interactions with the Larger-Scale Environment.” Surveys
in Geophysics, vol. 38, no. 6, Springer Nature, 2017, pp. 1283–305, doi:10.1007/s10712-017-9447-x.
short: P. Zuidema, G. Torri, C.J. Muller, A. Chandra, Surveys in Geophysics 38 (2017)
1283–1305.
date_created: 2021-02-15T14:20:07Z
date_published: 2017-11-14T00:00:00Z
date_updated: 2022-01-24T12:41:45Z
day: '14'
doi: 10.1007/s10712-017-9447-x
extern: '1'
intvolume: ' 38'
issue: '6'
keyword:
- Geochemistry and Petrology
- Geophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1007/s10712-017-9447-x
month: '11'
oa: 1
oa_version: Published Version
page: 1283-1305
publication: Surveys in Geophysics
publication_identifier:
issn:
- 0169-3298
- 1573-0956
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: A survey of precipitation-induced atmospheric cold pools over oceans and their
interactions with the larger-scale environment
type: journal_article
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 38
year: '2017'
...
---
_id: '9138'
abstract:
- lang: eng
text: Convective self-aggregation, the spontaneous organization of initially scattered
convection into isolated convective clusters despite spatially homogeneous boundary
conditions and forcing, was first recognized and studied in idealized numerical
simulations. While there is a rich history of observational work on convective
clustering and organization, there have been only a few studies that have analyzed
observations to look specifically for processes related to self-aggregation in
models. Here we review observational work in both of these categories and motivate
the need for more of this work. We acknowledge that self-aggregation may appear
to be far-removed from observed convective organization in terms of time scales,
initial conditions, initiation processes, and mean state extremes, but we argue
that these differences vary greatly across the diverse range of model simulations
in the literature and that these comparisons are already offering important insights
into real tropical phenomena. Some preliminary new findings are presented, including
results showing that a self-aggregation simulation with square geometry has too
broad distribution of humidity and is too dry in the driest regions when compared
with radiosonde records from Nauru, while an elongated channel simulation has
realistic representations of atmospheric humidity and its variability. We discuss
recent work increasing our understanding of how organized convection and climate
change may interact, and how model discrepancies related to this question are
prompting interest in observational comparisons. We also propose possible future
directions for observational work related to convective aggregation, including
novel satellite approaches and a ground-based observational network.
article_processing_charge: No
article_type: original
author:
- first_name: Christopher E.
full_name: Holloway, Christopher E.
last_name: Holloway
- first_name: Allison A.
full_name: Wing, Allison A.
last_name: Wing
- first_name: Sandrine
full_name: Bony, Sandrine
last_name: Bony
- first_name: Caroline J
full_name: Muller, Caroline J
id: f978ccb0-3f7f-11eb-b193-b0e2bd13182b
last_name: Muller
orcid: 0000-0001-5836-5350
- first_name: Hirohiko
full_name: Masunaga, Hirohiko
last_name: Masunaga
- first_name: Tristan S.
full_name: L’Ecuyer, Tristan S.
last_name: L’Ecuyer
- first_name: David D.
full_name: Turner, David D.
last_name: Turner
- first_name: Paquita
full_name: Zuidema, Paquita
last_name: Zuidema
citation:
ama: Holloway CE, Wing AA, Bony S, et al. Observing convective aggregation. Surveys
in Geophysics. 2017;38(6):1199-1236. doi:10.1007/s10712-017-9419-1
apa: Holloway, C. E., Wing, A. A., Bony, S., Muller, C. J., Masunaga, H., L’Ecuyer,
T. S., … Zuidema, P. (2017). Observing convective aggregation. Surveys in Geophysics.
Springer Nature. https://doi.org/10.1007/s10712-017-9419-1
chicago: Holloway, Christopher E., Allison A. Wing, Sandrine Bony, Caroline J Muller,
Hirohiko Masunaga, Tristan S. L’Ecuyer, David D. Turner, and Paquita Zuidema.
“Observing Convective Aggregation.” Surveys in Geophysics. Springer Nature,
2017. https://doi.org/10.1007/s10712-017-9419-1.
ieee: C. E. Holloway et al., “Observing convective aggregation,” Surveys
in Geophysics, vol. 38, no. 6. Springer Nature, pp. 1199–1236, 2017.
ista: Holloway CE, Wing AA, Bony S, Muller CJ, Masunaga H, L’Ecuyer TS, Turner DD,
Zuidema P. 2017. Observing convective aggregation. Surveys in Geophysics. 38(6),
1199–1236.
mla: Holloway, Christopher E., et al. “Observing Convective Aggregation.” Surveys
in Geophysics, vol. 38, no. 6, Springer Nature, 2017, pp. 1199–236, doi:10.1007/s10712-017-9419-1.
short: C.E. Holloway, A.A. Wing, S. Bony, C.J. Muller, H. Masunaga, T.S. L’Ecuyer,
D.D. Turner, P. Zuidema, Surveys in Geophysics 38 (2017) 1199–1236.
date_created: 2021-02-15T14:20:38Z
date_published: 2017-11-01T00:00:00Z
date_updated: 2022-01-24T12:43:13Z
day: '01'
doi: 10.1007/s10712-017-9419-1
extern: '1'
intvolume: ' 38'
issue: '6'
keyword:
- Geochemistry and Petrology
- Geophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1007/s10712-017-9419-1
month: '11'
oa: 1
oa_version: Published Version
page: 1199-1236
publication: Surveys in Geophysics
publication_identifier:
issn:
- 0169-3298
- 1573-0956
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: Observing convective aggregation
type: journal_article
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 38
year: '2017'
...
---
_id: '914'
abstract:
- lang: eng
text: Infections with potentially lethal pathogens may negatively affect an individual’s
lifespan and decrease its reproductive value. The terminal investment hypothesis
predicts that individuals faced with a reduced survival should invest more into
reproduction instead of maintenance and growth. Several studies suggest that individuals
are indeed able to estimate their body condition and to increase their reproductive
effort with approaching death, while other studies gave ambiguous results. We
investigate whether queens of a perennial social insect (ant) are able to boost
their reproduction following infection with an obligate killing pathogen. Social
insect queens are special with regard to reproduction and aging, as they outlive
conspecific non-reproductive workers. Moreover, in the ant Cardiocondyla obscurior,
fecundity increases with queen age. However, it remained unclear whether this
reflects negative reproductive senescence or terminal investment in response to
approaching death. Here, we test whether queens of C. obscurior react to infection
with the entomopathogenic fungus Metarhizium brunneum by an increased egg-laying
rate. We show that a fungal infection triggers a reinforced investment in reproduction
in queens. This adjustment of the reproductive rate by ant queens is consistent
with predictions of the terminal investment hypothesis and is reported for the
first time in a social insect.
acknowledgement: We thank two anonymous reviewers for helpful suggestions on the manuscript.
article_number: '170547'
article_processing_charge: No
author:
- first_name: Julia
full_name: Giehr, Julia
last_name: Giehr
- first_name: Anna V
full_name: Grasse, Anna V
id: 406F989C-F248-11E8-B48F-1D18A9856A87
last_name: Grasse
- first_name: Sylvia
full_name: Cremer, Sylvia
id: 2F64EC8C-F248-11E8-B48F-1D18A9856A87
last_name: Cremer
orcid: 0000-0002-2193-3868
- first_name: Jürgen
full_name: Heinze, Jürgen
last_name: Heinze
- first_name: Alexandra
full_name: Schrempf, Alexandra
last_name: Schrempf
citation:
ama: Giehr J, Grasse AV, Cremer S, Heinze J, Schrempf A. Ant queens increase their
reproductive efforts after pathogen infection. Royal Society Open Science.
2017;4(7). doi:10.1098/rsos.170547
apa: Giehr, J., Grasse, A. V., Cremer, S., Heinze, J., & Schrempf, A. (2017).
Ant queens increase their reproductive efforts after pathogen infection. Royal
Society Open Science. Royal Society, The. https://doi.org/10.1098/rsos.170547
chicago: Giehr, Julia, Anna V Grasse, Sylvia Cremer, Jürgen Heinze, and Alexandra
Schrempf. “Ant Queens Increase Their Reproductive Efforts after Pathogen Infection.”
Royal Society Open Science. Royal Society, The, 2017. https://doi.org/10.1098/rsos.170547.
ieee: J. Giehr, A. V. Grasse, S. Cremer, J. Heinze, and A. Schrempf, “Ant queens
increase their reproductive efforts after pathogen infection,” Royal Society
Open Science, vol. 4, no. 7. Royal Society, The, 2017.
ista: Giehr J, Grasse AV, Cremer S, Heinze J, Schrempf A. 2017. Ant queens increase
their reproductive efforts after pathogen infection. Royal Society Open Science.
4(7), 170547.
mla: Giehr, Julia, et al. “Ant Queens Increase Their Reproductive Efforts after
Pathogen Infection.” Royal Society Open Science, vol. 4, no. 7, 170547,
Royal Society, The, 2017, doi:10.1098/rsos.170547.
short: J. Giehr, A.V. Grasse, S. Cremer, J. Heinze, A. Schrempf, Royal Society Open
Science 4 (2017).
date_created: 2018-12-11T11:49:10Z
date_published: 2017-07-05T00:00:00Z
date_updated: 2025-07-10T12:01:39Z
day: '05'
ddc:
- '576'
- '592'
department:
- _id: SyCr
doi: 10.1098/rsos.170547
external_id:
isi:
- '000406670000025'
file:
- access_level: open_access
checksum: 351ae5e7a37e6e7d9295cd41146c4190
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:08:24Z
date_updated: 2020-07-14T12:48:15Z
file_id: '4684'
file_name: IST-2017-849-v1+1_2017_Grasse_Cremer_AntQueens.pdf
file_size: 530412
relation: main_file
file_date_updated: 2020-07-14T12:48:15Z
has_accepted_license: '1'
intvolume: ' 4'
isi: 1
issue: '7'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
publication: Royal Society Open Science
publication_identifier:
issn:
- 2054-5703
publication_status: published
publisher: Royal Society, The
publist_id: '6527'
pubrep_id: '849'
quality_controlled: '1'
related_material:
record:
- id: '9853'
relation: research_data
status: public
scopus_import: '1'
status: public
title: Ant queens increase their reproductive efforts after pathogen infection
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: 4
year: '2017'
...
---
_id: '915'
abstract:
- lang: eng
text: We propose a dual decomposition and linear program relaxation of the NP-hard
minimum cost multicut problem. Unlike other polyhedral relaxations of the multicut
polytope, it is amenable to efficient optimization by message passing. Like other
polyhedral relaxations, it can be tightened efficiently by cutting planes. We
define an algorithm that alternates between message passing and efficient separation
of cycle- and odd-wheel inequalities. This algorithm is more efficient than state-of-the-art
algorithms based on linear programming, including algorithms written in the framework
of leading commercial software, as we show in experiments with large instances
of the problem from applications in computer vision, biomedical image analysis
and data mining.
article_processing_charge: No
author:
- first_name: Paul
full_name: Swoboda, Paul
id: 446560C6-F248-11E8-B48F-1D18A9856A87
last_name: Swoboda
- first_name: Bjoern
full_name: Andres, Bjoern
last_name: Andres
citation:
ama: 'Swoboda P, Andres B. A message passing algorithm for the minimum cost multicut
problem. In: Vol 2017. IEEE; 2017:4990-4999. doi:10.1109/CVPR.2017.530'
apa: 'Swoboda, P., & Andres, B. (2017). A message passing algorithm for the
minimum cost multicut problem (Vol. 2017, pp. 4990–4999). Presented at the CVPR:
Computer Vision and Pattern Recognition, Honolulu, HA, United States: IEEE. https://doi.org/10.1109/CVPR.2017.530'
chicago: Swoboda, Paul, and Bjoern Andres. “A Message Passing Algorithm for the
Minimum Cost Multicut Problem,” 2017:4990–99. IEEE, 2017. https://doi.org/10.1109/CVPR.2017.530.
ieee: 'P. Swoboda and B. Andres, “A message passing algorithm for the minimum cost
multicut problem,” presented at the CVPR: Computer Vision and Pattern Recognition,
Honolulu, HA, United States, 2017, vol. 2017, pp. 4990–4999.'
ista: 'Swoboda P, Andres B. 2017. A message passing algorithm for the minimum cost
multicut problem. CVPR: Computer Vision and Pattern Recognition vol. 2017, 4990–4999.'
mla: Swoboda, Paul, and Bjoern Andres. A Message Passing Algorithm for the Minimum
Cost Multicut Problem. Vol. 2017, IEEE, 2017, pp. 4990–99, doi:10.1109/CVPR.2017.530.
short: P. Swoboda, B. Andres, in:, IEEE, 2017, pp. 4990–4999.
conference:
end_date: 2017-07-26
location: Honolulu, HA, United States
name: 'CVPR: Computer Vision and Pattern Recognition'
start_date: 2017-07-21
corr_author: '1'
date_created: 2018-12-11T11:49:11Z
date_published: 2017-07-01T00:00:00Z
date_updated: 2024-11-04T13:52:34Z
day: '01'
ddc:
- '000'
department:
- _id: VlKo
doi: 10.1109/CVPR.2017.530
ec_funded: 1
external_id:
isi:
- '000418371405009'
file:
- access_level: open_access
checksum: 7e51dacefa693574581a32da3eff63dc
content_type: application/pdf
creator: dernst
date_created: 2019-01-18T12:52:46Z
date_updated: 2020-07-14T12:48:15Z
file_id: '5849'
file_name: Swoboda_A_Message_Passing_CVPR_2017_paper.pdf
file_size: 883264
relation: main_file
file_date_updated: 2020-07-14T12:48:15Z
has_accepted_license: '1'
intvolume: ' 2017'
isi: 1
language:
- iso: eng
month: '07'
oa: 1
oa_version: Submitted Version
page: 4990-4999
project:
- _id: 25FBA906-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '616160'
name: 'Discrete Optimization in Computer Vision: Theory and Practice'
publication_identifier:
isbn:
- 978-153860457-1
publication_status: published
publisher: IEEE
publist_id: '6526'
quality_controlled: '1'
scopus_import: '1'
status: public
title: A message passing algorithm for the minimum cost multicut problem
type: conference
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 2017
year: '2017'
...
---
_id: '9152'
abstract:
- lang: eng
text: Previous numerical studies of the dissipation of internal tides in idealized
settings suggest the existence of a critical latitude (~29°) where dissipation
is enhanced. But observations only indicate a modest enhancement at this latitude.
To resolve this difference between observational and numerical results, the authors
study the latitudinal dependence of internal tides’ dissipation in more realistic
conditions. In particular, the ocean is not a quiescent medium; the presence of
large-scale currents or mesoscale eddies can impact the propagation and dissipation
of internal tides. This paper investigates the impact of a weak background mean
current in numerical simulations. The authors focus on the local dissipation of
high spatial mode internal waves near their generation site. The vertical profile
of dissipation and its variation with latitude without the mean current are consistent
with earlier studies. But adding a weak mean current has a major impact on the
latitudinal distribution of dissipation. The peak at the critical latitude disappears,
and the dissipation is closer to a constant, albeit with two weak peaks at ~25°
and ~35° latitude. This disappearance results from the Doppler shift of the internal
tides’ frequency, which hinders the nonlinear transfer of energy to small-scale
secondary waves via the parametric subharmonic instability (PSI). The new two
weak peaks correspond to the Doppler-shifted critical latitudes of the left- and
right-propagating waves. The results are confirmed in simulations with simple
sinusoidal topography. Thus, although nonlinear transfers via PSI are efficient
at dissipating internal tides, the exact location of the dissipation is sensitive
to large-scale oceanic conditions.
article_processing_charge: No
article_type: original
author:
- first_name: O.
full_name: Richet, O.
last_name: Richet
- first_name: Caroline J
full_name: Muller, Caroline J
id: f978ccb0-3f7f-11eb-b193-b0e2bd13182b
last_name: Muller
orcid: 0000-0001-5836-5350
- first_name: J.-M.
full_name: Chomaz, J.-M.
last_name: Chomaz
citation:
ama: Richet O, Muller CJ, Chomaz J-M. Impact of a mean current on the internal tide
energy dissipation at the critical latitude. Journal of Physical Oceanography.
2017;47(6):1457-1472. doi:10.1175/jpo-d-16-0197.1
apa: Richet, O., Muller, C. J., & Chomaz, J.-M. (2017). Impact of a mean current
on the internal tide energy dissipation at the critical latitude. Journal of
Physical Oceanography. American Meteorological Society. https://doi.org/10.1175/jpo-d-16-0197.1
chicago: Richet, O., Caroline J Muller, and J.-M. Chomaz. “Impact of a Mean Current
on the Internal Tide Energy Dissipation at the Critical Latitude.” Journal
of Physical Oceanography. American Meteorological Society, 2017. https://doi.org/10.1175/jpo-d-16-0197.1.
ieee: O. Richet, C. J. Muller, and J.-M. Chomaz, “Impact of a mean current on the
internal tide energy dissipation at the critical latitude,” Journal of Physical
Oceanography, vol. 47, no. 6. American Meteorological Society, pp. 1457–1472,
2017.
ista: Richet O, Muller CJ, Chomaz J-M. 2017. Impact of a mean current on the internal
tide energy dissipation at the critical latitude. Journal of Physical Oceanography.
47(6), 1457–1472.
mla: Richet, O., et al. “Impact of a Mean Current on the Internal Tide Energy Dissipation
at the Critical Latitude.” Journal of Physical Oceanography, vol. 47, no.
6, American Meteorological Society, 2017, pp. 1457–72, doi:10.1175/jpo-d-16-0197.1.
short: O. Richet, C.J. Muller, J.-M. Chomaz, Journal of Physical Oceanography 47
(2017) 1457–1472.
date_created: 2021-02-15T15:11:04Z
date_published: 2017-06-01T00:00:00Z
date_updated: 2022-01-24T13:36:31Z
day: '01'
doi: 10.1175/jpo-d-16-0197.1
extern: '1'
intvolume: ' 47'
issue: '6'
keyword:
- Oceanography
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1175/JPO-D-16-0197.1
month: '06'
oa: 1
oa_version: Published Version
page: 1457-1472
publication: Journal of Physical Oceanography
publication_identifier:
issn:
- 0022-3670
- 1520-0485
publication_status: published
publisher: American Meteorological Society
quality_controlled: '1'
status: public
title: Impact of a mean current on the internal tide energy dissipation at the critical
latitude
type: journal_article
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
volume: 47
year: '2017'
...
---
_id: '916'
abstract:
- lang: eng
text: We study the quadratic assignment problem, in computer vision also known as
graph matching. Two leading solvers for this problem optimize the Lagrange decomposition
duals with sub-gradient and dual ascent (also known as message passing) updates.
We explore this direction further and propose several additional Lagrangean relaxations
of the graph matching problem along with corresponding algorithms, which are all
based on a common dual ascent framework. Our extensive empirical evaluation gives
several theoretical insights and suggests a new state-of-the-art anytime solver
for the considered problem. Our improvement over state-of-the-art is particularly
visible on a new dataset with large-scale sparse problem instances containing
more than 500 graph nodes each.
article_processing_charge: No
author:
- first_name: Paul
full_name: Swoboda, Paul
id: 446560C6-F248-11E8-B48F-1D18A9856A87
last_name: Swoboda
- first_name: Carsten
full_name: Rother, Carsten
last_name: Rother
- first_name: Carsten
full_name: Abu Alhaija, Carsten
last_name: Abu Alhaija
- first_name: Dagmar
full_name: Kainmueller, Dagmar
last_name: Kainmueller
- first_name: Bogdan
full_name: Savchynskyy, Bogdan
last_name: Savchynskyy
citation:
ama: 'Swoboda P, Rother C, Abu Alhaija C, Kainmueller D, Savchynskyy B. A study
of lagrangean decompositions and dual ascent solvers for graph matching. In: Vol
2017. IEEE; 2017:7062-7071. doi:10.1109/CVPR.2017.747'
apa: 'Swoboda, P., Rother, C., Abu Alhaija, C., Kainmueller, D., & Savchynskyy,
B. (2017). A study of lagrangean decompositions and dual ascent solvers for graph
matching (Vol. 2017, pp. 7062–7071). Presented at the CVPR: Computer Vision and
Pattern Recognition, Honolulu, HA, United States: IEEE. https://doi.org/10.1109/CVPR.2017.747'
chicago: Swoboda, Paul, Carsten Rother, Carsten Abu Alhaija, Dagmar Kainmueller,
and Bogdan Savchynskyy. “A Study of Lagrangean Decompositions and Dual Ascent
Solvers for Graph Matching,” 2017:7062–71. IEEE, 2017. https://doi.org/10.1109/CVPR.2017.747.
ieee: 'P. Swoboda, C. Rother, C. Abu Alhaija, D. Kainmueller, and B. Savchynskyy,
“A study of lagrangean decompositions and dual ascent solvers for graph matching,”
presented at the CVPR: Computer Vision and Pattern Recognition, Honolulu, HA,
United States, 2017, vol. 2017, pp. 7062–7071.'
ista: 'Swoboda P, Rother C, Abu Alhaija C, Kainmueller D, Savchynskyy B. 2017. A
study of lagrangean decompositions and dual ascent solvers for graph matching.
CVPR: Computer Vision and Pattern Recognition vol. 2017, 7062–7071.'
mla: Swoboda, Paul, et al. A Study of Lagrangean Decompositions and Dual Ascent
Solvers for Graph Matching. Vol. 2017, IEEE, 2017, pp. 7062–71, doi:10.1109/CVPR.2017.747.
short: P. Swoboda, C. Rother, C. Abu Alhaija, D. Kainmueller, B. Savchynskyy, in:,
IEEE, 2017, pp. 7062–7071.
conference:
end_date: 2017-07-26
location: Honolulu, HA, United States
name: 'CVPR: Computer Vision and Pattern Recognition'
start_date: 2017-07-21
corr_author: '1'
date_created: 2018-12-11T11:49:11Z
date_published: 2017-01-01T00:00:00Z
date_updated: 2024-11-04T13:52:34Z
day: '01'
ddc:
- '000'
department:
- _id: VlKo
doi: 10.1109/CVPR.2017.747
ec_funded: 1
external_id:
isi:
- '000418371407018'
file:
- access_level: open_access
checksum: e38a2740daad1ea178465843b5072906
content_type: application/pdf
creator: dernst
date_created: 2019-01-18T12:49:38Z
date_updated: 2020-07-14T12:48:15Z
file_id: '5848'
file_name: 2017_CVPR_Swoboda2.pdf
file_size: 944332
relation: main_file
file_date_updated: 2020-07-14T12:48:15Z
has_accepted_license: '1'
intvolume: ' 2017'
isi: 1
language:
- iso: eng
month: '01'
oa: 1
oa_version: Submitted Version
page: 7062-7071
project:
- _id: 25FBA906-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '616160'
name: 'Discrete Optimization in Computer Vision: Theory and Practice'
publication_identifier:
isbn:
- 978-153860457-1
publication_status: published
publisher: IEEE
publist_id: '6525'
quality_controlled: '1'
scopus_import: '1'
status: public
title: A study of lagrangean decompositions and dual ascent solvers for graph matching
type: conference
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 2017
year: '2017'
...
---
_id: '917'
abstract:
- lang: eng
text: We propose a general dual ascent framework for Lagrangean decomposition
of combinatorial problems. Although methods of this type have shown their efficiency
for a number of problems, so far there was no general algorithm applicable to
multiple problem types. In this work, we propose such a general algorithm. It
depends on several parameters, which can be used to optimize its performance in
each particular setting. We demonstrate efficacy of our method on graph matching
and multicut problems, where it outperforms state-of-the-art solvers including
those based on subgradient optimization and off-the-shelf linear programming solvers.
article_processing_charge: No
author:
- first_name: Paul
full_name: Swoboda, Paul
id: 446560C6-F248-11E8-B48F-1D18A9856A87
last_name: Swoboda
- first_name: Jan
full_name: Kuske, Jan
last_name: Kuske
- first_name: Bogdan
full_name: Savchynskyy, Bogdan
last_name: Savchynskyy
citation:
ama: 'Swoboda P, Kuske J, Savchynskyy B. A dual ascent framework for Lagrangean
decomposition of combinatorial problems. In: Vol 2017. IEEE; 2017:4950-4960. doi:10.1109/CVPR.2017.526'
apa: 'Swoboda, P., Kuske, J., & Savchynskyy, B. (2017). A dual ascent framework
for Lagrangean decomposition of combinatorial problems (Vol. 2017, pp. 4950–4960).
Presented at the CVPR: Computer Vision and Pattern Recognition, Honolulu, HA,
United States: IEEE. https://doi.org/10.1109/CVPR.2017.526'
chicago: Swoboda, Paul, Jan Kuske, and Bogdan Savchynskyy. “A Dual Ascent Framework
for Lagrangean Decomposition of Combinatorial Problems,” 2017:4950–60. IEEE, 2017.
https://doi.org/10.1109/CVPR.2017.526.
ieee: 'P. Swoboda, J. Kuske, and B. Savchynskyy, “A dual ascent framework for Lagrangean
decomposition of combinatorial problems,” presented at the CVPR: Computer Vision
and Pattern Recognition, Honolulu, HA, United States, 2017, vol. 2017, pp. 4950–4960.'
ista: 'Swoboda P, Kuske J, Savchynskyy B. 2017. A dual ascent framework for Lagrangean
decomposition of combinatorial problems. CVPR: Computer Vision and Pattern Recognition
vol. 2017, 4950–4960.'
mla: Swoboda, Paul, et al. A Dual Ascent Framework for Lagrangean Decomposition
of Combinatorial Problems. Vol. 2017, IEEE, 2017, pp. 4950–60, doi:10.1109/CVPR.2017.526.
short: P. Swoboda, J. Kuske, B. Savchynskyy, in:, IEEE, 2017, pp. 4950–4960.
conference:
end_date: 2017-07-26
location: Honolulu, HA, United States
name: 'CVPR: Computer Vision and Pattern Recognition'
start_date: 2017-07-21
corr_author: '1'
date_created: 2018-12-11T11:49:11Z
date_published: 2017-07-01T00:00:00Z
date_updated: 2024-11-04T13:52:34Z
day: '01'
ddc:
- '000'
department:
- _id: VlKo
doi: 10.1109/CVPR.2017.526
ec_funded: 1
external_id:
isi:
- '000418371405005'
file:
- access_level: open_access
checksum: 72fd291046bd8e5717961bd68f6b6f03
content_type: application/pdf
creator: dernst
date_created: 2019-01-18T12:45:55Z
date_updated: 2020-07-14T12:48:15Z
file_id: '5847'
file_name: 2017_CVPR_Swoboda.pdf
file_size: 898652
relation: main_file
file_date_updated: 2020-07-14T12:48:15Z
has_accepted_license: '1'
intvolume: ' 2017'
isi: 1
language:
- iso: eng
month: '07'
oa: 1
oa_version: Submitted Version
page: 4950-4960
project:
- _id: 25FBA906-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '616160'
name: 'Discrete Optimization in Computer Vision: Theory and Practice'
publication_identifier:
isbn:
- 978-153860457-1
publication_status: published
publisher: IEEE
publist_id: '6524'
quality_controlled: '1'
scopus_import: '1'
status: public
title: A dual ascent framework for Lagrangean decomposition of combinatorial problems
type: conference
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 2017
year: '2017'
...
---
_id: '9190'
abstract:
- lang: eng
text: Plant meristems carry pools of continuously active stem cells, whose
activity is controlled by developmental and environmental signals. After stem
cell division, daughter cells that exit the stem cell domain acquire transit amplifying
cell identity before they are incorporated into organs and differentiate. In this
study, we used an integrated approach to elucidate the role of HECATE (HEC) genes
in regulating developmental trajectories of shoot stem cells in Arabidopsis thaliana.
Our work reveals that HEC function stabilizes cell fate in distinct zones of the
shoot meristem thereby controlling the spatio-temporal dynamics of stem cell differentiation.
Importantly, this activity is concomitant with the local modulation of cellular
responses to cytokinin and auxin, two key phytohormones regulating cell behaviour.
Mechanistically, we show that HEC factors transcriptionally control and physically
interact with MONOPTEROS (MP), a key regulator of auxin signalling, and modulate
the autocatalytic stabilization of auxin signalling output.
article_number: e30135
article_processing_charge: No
article_type: original
author:
- first_name: Christophe
full_name: Gaillochet, Christophe
last_name: Gaillochet
- first_name: Thomas
full_name: Stiehl, Thomas
last_name: Stiehl
- first_name: Christian
full_name: Wenzl, Christian
last_name: Wenzl
- first_name: Juan-José
full_name: Ripoll, Juan-José
last_name: Ripoll
- first_name: Lindsay J
full_name: Bailey-Steinitz, Lindsay J
last_name: Bailey-Steinitz
- first_name: Lanxin
full_name: Li, Lanxin
id: 367EF8FA-F248-11E8-B48F-1D18A9856A87
last_name: Li
orcid: 0000-0002-5607-272X
- first_name: Anne
full_name: Pfeiffer, Anne
last_name: Pfeiffer
- first_name: Andrej
full_name: Miotk, Andrej
last_name: Miotk
- first_name: Jana P
full_name: Hakenjos, Jana P
last_name: Hakenjos
- first_name: Joachim
full_name: Forner, Joachim
last_name: Forner
- first_name: Martin F
full_name: Yanofsky, Martin F
last_name: Yanofsky
- first_name: Anna
full_name: Marciniak-Czochra, Anna
last_name: Marciniak-Czochra
- first_name: Jan U
full_name: Lohmann, Jan U
last_name: Lohmann
citation:
ama: Gaillochet C, Stiehl T, Wenzl C, et al. Control of plant cell fate transitions
by transcriptional and hormonal signals. eLife. 2017;6. doi:10.7554/elife.30135
apa: Gaillochet, C., Stiehl, T., Wenzl, C., Ripoll, J.-J., Bailey-Steinitz, L. J.,
Li, L., … Lohmann, J. U. (2017). Control of plant cell fate transitions by transcriptional
and hormonal signals. ELife. eLife Sciences Publications. https://doi.org/10.7554/elife.30135
chicago: Gaillochet, Christophe, Thomas Stiehl, Christian Wenzl, Juan-José Ripoll,
Lindsay J Bailey-Steinitz, Lanxin Li, Anne Pfeiffer, et al. “Control of Plant
Cell Fate Transitions by Transcriptional and Hormonal Signals.” ELife.
eLife Sciences Publications, 2017. https://doi.org/10.7554/elife.30135.
ieee: C. Gaillochet et al., “Control of plant cell fate transitions by transcriptional
and hormonal signals,” eLife, vol. 6. eLife Sciences Publications, 2017.
ista: Gaillochet C, Stiehl T, Wenzl C, Ripoll J-J, Bailey-Steinitz LJ, Li L, Pfeiffer
A, Miotk A, Hakenjos JP, Forner J, Yanofsky MF, Marciniak-Czochra A, Lohmann JU.
2017. Control of plant cell fate transitions by transcriptional and hormonal signals.
eLife. 6, e30135.
mla: Gaillochet, Christophe, et al. “Control of Plant Cell Fate Transitions by Transcriptional
and Hormonal Signals.” ELife, vol. 6, e30135, eLife Sciences Publications,
2017, doi:10.7554/elife.30135.
short: C. Gaillochet, T. Stiehl, C. Wenzl, J.-J. Ripoll, L.J. Bailey-Steinitz, L.
Li, A. Pfeiffer, A. Miotk, J.P. Hakenjos, J. Forner, M.F. Yanofsky, A. Marciniak-Czochra,
J.U. Lohmann, ELife 6 (2017).
date_created: 2021-02-24T17:06:13Z
date_published: 2017-10-23T00:00:00Z
date_updated: 2021-03-02T09:33:54Z
day: '23'
ddc:
- '580'
doi: 10.7554/elife.30135
extern: '1'
external_id:
pmid:
- '29058667'
file:
- access_level: open_access
checksum: 51c8968a845df5077643c3e3e139d34f
content_type: application/pdf
creator: dernst
date_created: 2021-03-02T09:29:56Z
date_updated: 2021-03-02T09:29:56Z
file_id: '9214'
file_name: 2017_eLife_Gaillochet.pdf
file_size: 11669407
relation: main_file
success: 1
file_date_updated: 2021-03-02T09:29:56Z
has_accepted_license: '1'
intvolume: ' 6'
language:
- iso: eng
month: '10'
oa: 1
oa_version: Published Version
pmid: 1
publication: eLife
publication_identifier:
issn:
- 2050-084X
publication_status: published
publisher: eLife Sciences Publications
quality_controlled: '1'
status: public
title: Control of plant cell fate transitions by transcriptional and hormonal signals
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: '2017'
...
---
_id: '93'
abstract:
- lang: eng
text: An electro-optomechanical device capable of microwave-to-optics conversion
has recently been demonstrated, with the vision of enabling optical networks of
superconducting qubits. Here we present an improved converter design that uses
a three-dimensional microwave cavity for coupling between the microwave transmission
line and an integrated LC resonator on the converter chip. The new design simplifies
the optical assembly and decouples it from the microwave part of the setup. Experimental
demonstrations show that the modular device assembly allows us to flexibly tune
the microwave coupling to the converter chip while maintaining small loss. We
also find that electromechanical experiments are not impacted by the additional
microwave cavity. Our design is compatible with a high-finesse optical cavity
and will improve optical performance.
article_number: '094701'
arxiv: 1
author:
- first_name: Tim
full_name: Menke, Tim
last_name: Menke
- first_name: Peter
full_name: Burns, Peter
last_name: Burns
- first_name: Andrew P
full_name: Higginbotham, Andrew P
id: 4AD6785A-F248-11E8-B48F-1D18A9856A87
last_name: Higginbotham
orcid: 0000-0003-2607-2363
- first_name: N S
full_name: Kampel, N S
last_name: Kampel
- first_name: Robert
full_name: Peterson, Robert
last_name: Peterson
- first_name: Katarina
full_name: Cicak, Katarina
last_name: Cicak
- first_name: Raymond
full_name: Simmonds, Raymond
last_name: Simmonds
- first_name: Cindy
full_name: Regal, Cindy
last_name: Regal
- first_name: Konrad
full_name: Lehnert, Konrad
last_name: Lehnert
citation:
ama: Menke T, Burns P, Higginbotham AP, et al. Reconfigurable re-entrant cavity
for wireless coupling to an electro-optomechanical device. Review of Scientific
Instruments. 2017;88(9). doi:10.1063/1.5000973
apa: Menke, T., Burns, P., Higginbotham, A. P., Kampel, N. S., Peterson, R., Cicak,
K., … Lehnert, K. (2017). Reconfigurable re-entrant cavity for wireless coupling
to an electro-optomechanical device. Review of Scientific Instruments.
American Institute of Physics. https://doi.org/10.1063/1.5000973
chicago: Menke, Tim, Peter Burns, Andrew P Higginbotham, N S Kampel, Robert Peterson,
Katarina Cicak, Raymond Simmonds, Cindy Regal, and Konrad Lehnert. “Reconfigurable
Re-Entrant Cavity for Wireless Coupling to an Electro-Optomechanical Device.”
Review of Scientific Instruments. American Institute of Physics, 2017.
https://doi.org/10.1063/1.5000973.
ieee: T. Menke et al., “Reconfigurable re-entrant cavity for wireless coupling
to an electro-optomechanical device,” Review of Scientific Instruments,
vol. 88, no. 9. American Institute of Physics, 2017.
ista: Menke T, Burns P, Higginbotham AP, Kampel NS, Peterson R, Cicak K, Simmonds
R, Regal C, Lehnert K. 2017. Reconfigurable re-entrant cavity for wireless coupling
to an electro-optomechanical device. Review of Scientific Instruments. 88(9),
094701.
mla: Menke, Tim, et al. “Reconfigurable Re-Entrant Cavity for Wireless Coupling
to an Electro-Optomechanical Device.” Review of Scientific Instruments,
vol. 88, no. 9, 094701, American Institute of Physics, 2017, doi:10.1063/1.5000973.
short: T. Menke, P. Burns, A.P. Higginbotham, N.S. Kampel, R. Peterson, K. Cicak,
R. Simmonds, C. Regal, K. Lehnert, Review of Scientific Instruments 88 (2017).
date_created: 2018-12-11T11:44:35Z
date_published: 2017-09-08T00:00:00Z
date_updated: 2021-01-12T08:21:59Z
day: '08'
doi: 10.1063/1.5000973
extern: '1'
external_id:
arxiv:
- '1703.06470'
pmid:
- '28964202'
intvolume: ' 88'
issue: '9'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1703.06470
month: '09'
oa: 1
oa_version: Preprint
pmid: 1
publication: Review of Scientific Instruments
publication_status: published
publisher: American Institute of Physics
publist_id: '7961'
quality_controlled: '1'
status: public
title: Reconfigurable re-entrant cavity for wireless coupling to an electro-optomechanical
device
type: journal_article
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 88
year: '2017'
...
---
OA_place: publisher
_id: '938'
abstract:
- lang: eng
text: The thesis encompasses several topics of plant cell biology which were studied
in the model plant Arabidopsis thaliana. Chapter 1 concerns the plant hormone
auxin and its polar transport through cells and tissues. The highly controlled,
directional transport of auxin is facilitated by plasma membrane-localized transporters.
Transporters from the PIN family direct auxin transport due to their polarized
localizations at cell membranes. Substantial effort has been put into research
on cellular trafficking of PIN proteins, which is thought to underlie their polar
distribution. I participated in a forward genetic screen aimed at identifying
novel regulators of PIN polarity. The screen yielded several genes which may be
involved in PIN polarity regulation or participate in polar auxin transport by
other means. Chapter 2 focuses on the endomembrane system, with particular attention
to clathrin-mediated endocytosis. The project started with identification of several
proteins that interact with clathrin light chains. Among them, I focused on two
putative homologues of auxilin, which in non-plant systems is an endocytotic factor
known for uncoating clathrin-coated vesicles in the final step of endocytosis.
The body of my work consisted of an in-depth characterization of transgenic A.
thaliana lines overexpressing these putative auxilins in an inducible manner.
Overexpression of these proteins leads to an inhibition of endocytosis, as documented
by imaging of cargoes and clathrin-related endocytic machinery. An extension of
this work is an investigation into a concept of homeostatic regulation acting
between distinct transport processes in the endomembrane system. With auxilin
overexpressing lines, where endocytosis is blocked specifically, I made observations
on the mutual relationship between two opposite trafficking processes of secretion
and endocytosis. In Chapter 3, I analyze cortical microtubule arrays and their
relationship to auxin signaling and polarized growth in elongating cells. In plants,
microtubules are organized into arrays just below the plasma membrane, and it
is thought that their function is to guide membrane-docked cellulose synthase
complexes. These, in turn, influence cell wall structure and cell shape by directed
deposition of cellulose fibres. In elongating cells, cortical microtubule arrays
are able to reorient in relation to long cell axis, and these reorientations have
been linked to cell growth and to signaling of growth-regulating factors such
as auxin or light. In this chapter, I am addressing the causal relationship between
microtubule array reorientation, growth, and auxin signaling. I arrive at a model
where array reorientation is not guided by auxin directly, but instead is only
controlled by growth, which, in turn, is regulated by auxin.
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Maciek
full_name: Adamowski, Maciek
id: 45F536D2-F248-11E8-B48F-1D18A9856A87
last_name: Adamowski
orcid: 0000-0001-6463-5257
citation:
ama: Adamowski M. Investigations into cell polarity and trafficking in the plant
model Arabidopsis thaliana . 2017. doi:10.15479/AT:ISTA:th_842
apa: Adamowski, M. (2017). Investigations into cell polarity and trafficking
in the plant model Arabidopsis thaliana . Institute of Science and Technology
Austria. https://doi.org/10.15479/AT:ISTA:th_842
chicago: Adamowski, Maciek. “Investigations into Cell Polarity and Trafficking in
the Plant Model Arabidopsis Thaliana .” Institute of Science and Technology Austria,
2017. https://doi.org/10.15479/AT:ISTA:th_842.
ieee: M. Adamowski, “Investigations into cell polarity and trafficking in the plant
model Arabidopsis thaliana ,” Institute of Science and Technology Austria, 2017.
ista: Adamowski M. 2017. Investigations into cell polarity and trafficking in the
plant model Arabidopsis thaliana . Institute of Science and Technology Austria.
mla: Adamowski, Maciek. Investigations into Cell Polarity and Trafficking in
the Plant Model Arabidopsis Thaliana . Institute of Science and Technology
Austria, 2017, doi:10.15479/AT:ISTA:th_842.
short: M. Adamowski, Investigations into Cell Polarity and Trafficking in the Plant
Model Arabidopsis Thaliana , Institute of Science and Technology Austria, 2017.
corr_author: '1'
date_created: 2018-12-11T11:49:18Z
date_published: 2017-06-02T00:00:00Z
date_updated: 2026-04-08T14:20:45Z
day: '02'
ddc:
- '581'
- '583'
- '580'
degree_awarded: PhD
department:
- _id: JiFr
doi: 10.15479/AT:ISTA:th_842
file:
- access_level: closed
checksum: 193425764d9aaaed3ac57062a867b315
content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
creator: dernst
date_created: 2019-04-05T09:03:20Z
date_updated: 2020-07-14T12:48:15Z
file_id: '6215'
file_name: 2017_Adamowski-Thesis_Source.docx
file_size: 46903863
relation: source_file
- access_level: open_access
checksum: df5ab01be81f821e1b958596a1ec8d21
content_type: application/pdf
creator: dernst
date_created: 2019-04-05T09:03:19Z
date_updated: 2020-07-14T12:48:15Z
file_id: '6216'
file_name: 2017_Adamowski-Thesis.pdf
file_size: 8698888
relation: main_file
file_date_updated: 2020-07-14T12:48:15Z
has_accepted_license: '1'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
page: '117'
publication_identifier:
issn:
- 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
publist_id: '6483'
pubrep_id: '842'
related_material:
record:
- id: '1591'
relation: part_of_dissertation
status: public
status: public
supervisor:
- first_name: Jiří
full_name: Friml, Jiří
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
title: 'Investigations into cell polarity and trafficking in the plant model Arabidopsis
thaliana '
type: dissertation
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
year: '2017'
...
---
_id: '939'
abstract:
- lang: eng
text: We reveal the existence of continuous families of guided single-mode solitons
in planar waveguides with weakly nonlinear active core and absorbing boundaries.
Stable propagation of TE and TM-polarized solitons is accompanied by attenuation
of all other modes, i.e., the waveguide features properties of conservative and
dissipative systems. If the linear spectrum of the waveguide possesses exceptional
points, which occurs in the case of TM polarization, an originally focusing (defocusing)
material nonlinearity may become effectively defocusing (focusing). This occurs
due to the geometric phase of the carried eigenmode when the surface impedance
encircles the exceptional point. In its turn, the change of the effective nonlinearity
ensures the existence of dark (bright) solitons in spite of focusing (defocusing)
Kerr nonlinearity of the core. The existence of an exceptional point can also
result in anomalous enhancement of the effective nonlinearity. In terms of practical
applications, the nonlinearity of the reported waveguide can be manipulated by
controlling the properties of the absorbing cladding.
article_number: '033905'
article_processing_charge: No
arxiv: 1
author:
- first_name: Bikashkali
full_name: Midya, Bikashkali
id: 456187FC-F248-11E8-B48F-1D18A9856A87
last_name: Midya
- first_name: Vladimir
full_name: Konotop, Vladimir
last_name: Konotop
citation:
ama: 'Midya B, Konotop V. Waveguides with absorbing boundaries: Nonlinearity controlled
by an exceptional point and solitons. Physical Review Letters. 2017;119(3).
doi:10.1103/PhysRevLett.119.033905'
apa: 'Midya, B., & Konotop, V. (2017). Waveguides with absorbing boundaries:
Nonlinearity controlled by an exceptional point and solitons. Physical Review
Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.119.033905'
chicago: 'Midya, Bikashkali, and Vladimir Konotop. “Waveguides with Absorbing Boundaries:
Nonlinearity Controlled by an Exceptional Point and Solitons.” Physical Review
Letters. American Physical Society, 2017. https://doi.org/10.1103/PhysRevLett.119.033905.'
ieee: 'B. Midya and V. Konotop, “Waveguides with absorbing boundaries: Nonlinearity
controlled by an exceptional point and solitons,” Physical Review Letters,
vol. 119, no. 3. American Physical Society, 2017.'
ista: 'Midya B, Konotop V. 2017. Waveguides with absorbing boundaries: Nonlinearity
controlled by an exceptional point and solitons. Physical Review Letters. 119(3),
033905.'
mla: 'Midya, Bikashkali, and Vladimir Konotop. “Waveguides with Absorbing Boundaries:
Nonlinearity Controlled by an Exceptional Point and Solitons.” Physical Review
Letters, vol. 119, no. 3, 033905, American Physical Society, 2017, doi:10.1103/PhysRevLett.119.033905.'
short: B. Midya, V. Konotop, Physical Review Letters 119 (2017).
corr_author: '1'
date_created: 2018-12-11T11:49:18Z
date_published: 2017-07-18T00:00:00Z
date_updated: 2025-06-04T08:20:23Z
day: '18'
department:
- _id: MiLe
doi: 10.1103/PhysRevLett.119.033905
ec_funded: 1
external_id:
arxiv:
- '1706.04085 '
isi:
- '000405718200012'
intvolume: ' 119'
isi: 1
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: 'https://arxiv.org/abs/1706.04085 '
month: '07'
oa: 1
oa_version: Submitted Version
project:
- _id: 25681D80-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '291734'
name: International IST Postdoc Fellowship Programme
publication: Physical Review Letters
publication_identifier:
issn:
- 0031-9007
publication_status: published
publisher: American Physical Society
publist_id: '6481'
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Waveguides with absorbing boundaries: Nonlinearity controlled by an exceptional
point and solitons'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 119
year: '2017'
...
---
_id: '94'
abstract:
- lang: eng
text: We introduce a method for breaking Lorentz reciprocity based upon the noncommutation
of frequency conversion and delay. The method requires no magnetic materials or
resonant physics, allowing for the design of scalable and broadband nonreciprocal
circuits. With this approach, two types of gyrators - universal building blocks
for linear, nonreciprocal circuits - are constructed. Using one of these gyrators,
we create a circulator with >15 dB of isolation across the 5-9 GHz band. Our
designs may be readily extended to any platform with suitable frequency conversion
elements, including semiconducting devices for telecommunication or an on-chip
superconducting implementation for quantum information processing.
article_number: '147703'
arxiv: 1
author:
- first_name: Eric
full_name: Rosenthal, Eric
last_name: Rosenthal
- first_name: Benjamin
full_name: Chapman, Benjamin
last_name: Chapman
- first_name: Andrew P
full_name: Higginbotham, Andrew P
id: 4AD6785A-F248-11E8-B48F-1D18A9856A87
last_name: Higginbotham
orcid: 0000-0003-2607-2363
- first_name: Joseph
full_name: Kerckhoff, Joseph
last_name: Kerckhoff
- first_name: Konrad
full_name: Lehnert, Konrad
last_name: Lehnert
citation:
ama: Rosenthal E, Chapman B, Higginbotham AP, Kerckhoff J, Lehnert K. Breaking Lorentz
reciprocity with frequency conversion and delay. APS Physics, Physical Review
Letters. 2017;119(14). doi:10.1103/PhysRevLett.119.147703
apa: Rosenthal, E., Chapman, B., Higginbotham, A. P., Kerckhoff, J., & Lehnert,
K. (2017). Breaking Lorentz reciprocity with frequency conversion and delay. APS
Physics, Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.119.147703
chicago: Rosenthal, Eric, Benjamin Chapman, Andrew P Higginbotham, Joseph Kerckhoff,
and Konrad Lehnert. “Breaking Lorentz Reciprocity with Frequency Conversion and
Delay.” APS Physics, Physical Review Letters. American Physical Society,
2017. https://doi.org/10.1103/PhysRevLett.119.147703.
ieee: E. Rosenthal, B. Chapman, A. P. Higginbotham, J. Kerckhoff, and K. Lehnert,
“Breaking Lorentz reciprocity with frequency conversion and delay,” APS Physics,
Physical Review Letters, vol. 119, no. 14. American Physical Society, 2017.
ista: Rosenthal E, Chapman B, Higginbotham AP, Kerckhoff J, Lehnert K. 2017. Breaking
Lorentz reciprocity with frequency conversion and delay. APS Physics, Physical
Review Letters. 119(14), 147703.
mla: Rosenthal, Eric, et al. “Breaking Lorentz Reciprocity with Frequency Conversion
and Delay.” APS Physics, Physical Review Letters, vol. 119, no. 14, 147703,
American Physical Society, 2017, doi:10.1103/PhysRevLett.119.147703.
short: E. Rosenthal, B. Chapman, A.P. Higginbotham, J. Kerckhoff, K. Lehnert, APS
Physics, Physical Review Letters 119 (2017).
date_created: 2018-12-11T11:44:35Z
date_published: 2017-10-06T00:00:00Z
date_updated: 2021-01-12T08:22:04Z
day: '06'
doi: 10.1103/PhysRevLett.119.147703
extern: '1'
external_id:
arxiv:
- '1705.09548'
intvolume: ' 119'
issue: '14'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1705.09548
month: '10'
oa: 1
oa_version: Submitted Version
publication: APS Physics, Physical Review Letters
publication_status: published
publisher: American Physical Society
publist_id: '7960'
quality_controlled: '1'
status: public
title: Breaking Lorentz reciprocity with frequency conversion and delay
type: journal_article
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 119
year: '2017'
...