---
_id: '15235'
abstract:
- lang: eng
text: Radiative corrections of quantum electrodynamics cause a vacuum threaded by
a magnetic field to be birefringent. This means that radiation of different polarizations
travels at different speeds. Even in the strong magnetic fields of astrophysical
sources, the difference in speed is small. However, it has profound consequences
for the extent of polarization expected from strongly magnetized sources. We demonstrate
how the birefringence arises from first principles, show how birefringence affects
the polarization state of radiation and present recent calculations for the expected
polarization from magnetars and X-ray pulsars.
article_number: '76'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Jeremy
full_name: Heyl, Jeremy
last_name: Heyl
- first_name: Ilaria
full_name: Caiazzo, Ilaria
id: 8ae5b6e7-2a03-11ee-914d-b58ed7a3b47d
last_name: Caiazzo
orcid: 0000-0002-4770-5388
citation:
ama: 'Heyl J, Caiazzo I. Strongly magnetized sources: QED and X-ray polarization.
Galaxies. 2018;6(3). doi:10.3390/galaxies6030076'
apa: 'Heyl, J., & Caiazzo, I. (2018). Strongly magnetized sources: QED and X-ray
polarization. Galaxies. MDPI. https://doi.org/10.3390/galaxies6030076'
chicago: 'Heyl, Jeremy, and Ilaria Caiazzo. “Strongly Magnetized Sources: QED and
X-Ray Polarization.” Galaxies. MDPI, 2018. https://doi.org/10.3390/galaxies6030076.'
ieee: 'J. Heyl and I. Caiazzo, “Strongly magnetized sources: QED and X-ray polarization,”
Galaxies, vol. 6, no. 3. MDPI, 2018.'
ista: 'Heyl J, Caiazzo I. 2018. Strongly magnetized sources: QED and X-ray polarization.
Galaxies. 6(3), 76.'
mla: 'Heyl, Jeremy, and Ilaria Caiazzo. “Strongly Magnetized Sources: QED and X-Ray
Polarization.” Galaxies, vol. 6, no. 3, 76, MDPI, 2018, doi:10.3390/galaxies6030076.'
short: J. Heyl, I. Caiazzo, Galaxies 6 (2018).
date_created: 2024-03-26T10:38:46Z
date_published: 2018-07-21T00:00:00Z
date_updated: 2024-04-08T07:02:25Z
day: '21'
doi: 10.3390/galaxies6030076
extern: '1'
external_id:
arxiv:
- '1802.00358'
fulldoi: https://doi.org/10.3390/galaxies6030076
intvolume: ' 6'
issue: '3'
keyword:
- Astronomy and Astrophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.3390/galaxies6030076
month: '07'
oa: 1
oa_version: Published Version
publication: Galaxies
publication_identifier:
eissn:
- 2075-4434
publication_status: published
publisher: MDPI
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Strongly magnetized sources: QED and X-ray polarization'
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: '2018'
...
---
_id: '15236'
abstract:
- lang: eng
text: 'Radio pulsars found in binary systems with short orbital periods are usually
fast spinning as a consequence of recycling via mass transfer from their companion
stars; this process is also thought to decrease the magnetic field of the neutron
star being recycled. Here, we report on timing observations of the recently discovered
binary PSR J1755−2550 and find that this pulsar is an exception: with a characteristic
age of 2.1 Myr, it is relatively young; furthermore, with a spin period of 315 ms
and a surface magnetic field strength at its poles of 0.88 × 1012 G, the pulsar
shows no sign of having been recycled. Based on its timing and orbital characteristics,
the pulsar either has a massive white dwarf (WD) or a neutron star (NS) companion.
To distinguish between these two cases, we searched radio observations for a potential
recycled pulsar companion and analysed archival optical data for a potential WD
companion. Neither work returned conclusive detections. We apply population synthesis
modelling and find that both solutions are roughly equally probable. Our population
synthesis also predicts a minimum mass of 0.90 M⊙ for the companion star to PSR
J1755−2550 and we simulate the systemic runaway velocities for the resulting WDNS
systems which may merge and possibly produce Ca-rich supernovae. Whether PSR J1755−2550
hosts a WD or a NS companion star, it is certainly a member of a rare subpopulation
of binary radio pulsars.'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: C
full_name: Ng, C
last_name: Ng
- first_name: M U
full_name: Kruckow, M U
last_name: Kruckow
- first_name: T M
full_name: Tauris, T M
last_name: Tauris
- first_name: A G
full_name: Lyne, A G
last_name: Lyne
- first_name: P C C
full_name: Freire, P C C
last_name: Freire
- first_name: A
full_name: Ridolfi, A
last_name: Ridolfi
- first_name: Ilaria
full_name: Caiazzo, Ilaria
id: 8ae5b6e7-2a03-11ee-914d-b58ed7a3b47d
last_name: Caiazzo
orcid: 0000-0002-4770-5388
- first_name: J
full_name: Heyl, J
last_name: Heyl
- first_name: M
full_name: Kramer, M
last_name: Kramer
- first_name: A D
full_name: Cameron, A D
last_name: Cameron
- first_name: D J
full_name: Champion, D J
last_name: Champion
- first_name: B
full_name: Stappers, B
last_name: Stappers
citation:
ama: 'Ng C, Kruckow MU, Tauris TM, et al. PSR J1755−2550: A young radio pulsar with
a massive, compact companion. Monthly Notices of the Royal Astronomical Society.
2018;476(4):4315-4326. doi:10.1093/mnras/sty482'
apa: 'Ng, C., Kruckow, M. U., Tauris, T. M., Lyne, A. G., Freire, P. C. C., Ridolfi,
A., … Stappers, B. (2018). PSR J1755−2550: A young radio pulsar with a massive,
compact companion. Monthly Notices of the Royal Astronomical Society. Oxford
University Press. https://doi.org/10.1093/mnras/sty482'
chicago: 'Ng, C, M U Kruckow, T M Tauris, A G Lyne, P C C Freire, A Ridolfi, Ilaria
Caiazzo, et al. “PSR J1755−2550: A Young Radio Pulsar with a Massive, Compact
Companion.” Monthly Notices of the Royal Astronomical Society. Oxford University
Press, 2018. https://doi.org/10.1093/mnras/sty482.'
ieee: 'C. Ng et al., “PSR J1755−2550: A young radio pulsar with a massive,
compact companion,” Monthly Notices of the Royal Astronomical Society,
vol. 476, no. 4. Oxford University Press, pp. 4315–4326, 2018.'
ista: 'Ng C, Kruckow MU, Tauris TM, Lyne AG, Freire PCC, Ridolfi A, Caiazzo I, Heyl
J, Kramer M, Cameron AD, Champion DJ, Stappers B. 2018. PSR J1755−2550: A young
radio pulsar with a massive, compact companion. Monthly Notices of the Royal Astronomical
Society. 476(4), 4315–4326.'
mla: 'Ng, C., et al. “PSR J1755−2550: A Young Radio Pulsar with a Massive, Compact
Companion.” Monthly Notices of the Royal Astronomical Society, vol. 476,
no. 4, Oxford University Press, 2018, pp. 4315–26, doi:10.1093/mnras/sty482.'
short: C. Ng, M.U. Kruckow, T.M. Tauris, A.G. Lyne, P.C.C. Freire, A. Ridolfi, I.
Caiazzo, J. Heyl, M. Kramer, A.D. Cameron, D.J. Champion, B. Stappers, Monthly
Notices of the Royal Astronomical Society 476 (2018) 4315–4326.
date_created: 2024-03-26T10:39:05Z
date_published: 2018-02-23T00:00:00Z
date_updated: 2024-04-08T07:02:52Z
day: '23'
doi: 10.1093/mnras/sty482
extern: '1'
external_id:
arxiv:
- '1802.08248'
fulldoi: https://doi.org/10.1093/mnras/sty482
intvolume: ' 476'
issue: '4'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.1802.08248
month: '02'
oa: 1
oa_version: Preprint
page: 4315-4326
publication: Monthly Notices of the Royal Astronomical Society
publication_identifier:
eissn:
- 1365-2966
issn:
- 0035-8711
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'PSR J1755−2550: A young radio pulsar with a massive, compact companion'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 476
year: '2018'
...
---
_id: '15237'
abstract:
- lang: eng
text: 'The effect of vacuum birefringence is one of the first predictions of quantum
electrodynamics (QED): the presence of a charged Dirac field makes the vacuum
birefringent when threaded by magnetic fields. This effect, extremely weak for
terrestrial magnetic fields, becomes important for highly magnetized astrophysical
objects, such as accreting black holes. In the X-ray regime, the polarization
of photons traveling in the magnetosphere of a black hole is not frozen at emission
but is changed by the local magnetic field. We show that, for photons traveling
along the plane of the disk, where the field is expected to be partially organized,
this results in a depolarization of the X-ray radiation. Because the amount of
depolarization depends on the strength of the magnetic field, this effect can
provide a way to probe the magnetic field in black-hole accretion disks and to
study the role of magnetic fields in astrophysical accretion in general.'
article_number: '57'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Ilaria
full_name: Caiazzo, Ilaria
id: 8ae5b6e7-2a03-11ee-914d-b58ed7a3b47d
last_name: Caiazzo
orcid: 0000-0002-4770-5388
- first_name: Jeremy
full_name: Heyl, Jeremy
last_name: Heyl
citation:
ama: Caiazzo I, Heyl J. Probing black hole magnetic fields with QED. Galaxies.
2018;6(2). doi:10.3390/galaxies6020057
apa: Caiazzo, I., & Heyl, J. (2018). Probing black hole magnetic fields with
QED. Galaxies. MDPI. https://doi.org/10.3390/galaxies6020057
chicago: Caiazzo, Ilaria, and Jeremy Heyl. “Probing Black Hole Magnetic Fields with
QED.” Galaxies. MDPI, 2018. https://doi.org/10.3390/galaxies6020057.
ieee: I. Caiazzo and J. Heyl, “Probing black hole magnetic fields with QED,” Galaxies,
vol. 6, no. 2. MDPI, 2018.
ista: Caiazzo I, Heyl J. 2018. Probing black hole magnetic fields with QED. Galaxies.
6(2), 57.
mla: Caiazzo, Ilaria, and Jeremy Heyl. “Probing Black Hole Magnetic Fields with
QED.” Galaxies, vol. 6, no. 2, 57, MDPI, 2018, doi:10.3390/galaxies6020057.
short: I. Caiazzo, J. Heyl, Galaxies 6 (2018).
date_created: 2024-03-26T10:39:26Z
date_published: 2018-05-24T00:00:00Z
date_updated: 2024-10-14T12:33:20Z
day: '24'
doi: 10.3390/galaxies6020057
extern: '1'
external_id:
arxiv:
- '1805.11018'
fulldoi: https://doi.org/10.3390/galaxies6020057
intvolume: ' 6'
issue: '2'
keyword:
- Astronomy and Astrophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.3390/galaxies6020057
month: '05'
oa: 1
oa_version: Published Version
publication: Galaxies
publication_identifier:
eissn:
- 2075-4434
publication_status: published
publisher: MDPI
quality_controlled: '1'
scopus_import: '1'
status: public
title: Probing black hole magnetic fields with QED
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: '2018'
...
---
_id: '15238'
abstract:
- lang: eng
text: 'In the next decade, x-ray polarimetry will open a new window on the high-energy
Universe, as several missions that include an x-ray polarimeter are currently
under development. Observations of the polarization of x rays coming from the
accretion disks of stellar-mass and supermassive black holes are among the new
polarimeters’ major objectives. In this paper, we show that these observations
can be affected by the quantum electrodynamic (QED) effect of vacuum birefringence:
after an x-ray photon is emitted from the accretion disk, its polarization changes
as the photon travels through the accretion disk’s magnetosphere, as a result
of the vacuum becoming birefringent in the presence of a magnetic field. We show
that this effect can be important for black holes in the energy band of the upcoming
polarimeters and has to be taken into account in a complete model of the x-ray
polarization that we expect to detect from black-hole accretion disks, both for
stellar mass and for supermassive black holes. We find that, for a chaotic magnetic
field in the disk, QED can significantly decrease the linear polarization fraction
of edge-on photons, depending on the spin of the hole and on the strength of the
magnetic field. This effect can provide, for the first time, a direct way to probe
the magnetic field strength close to the innermost stable orbit of black-hole
accretion disks and to study the role of magnetic fields in astrophysical accretion
in general.'
article_number: '083001'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Ilaria
full_name: Caiazzo, Ilaria
id: 8ae5b6e7-2a03-11ee-914d-b58ed7a3b47d
last_name: Caiazzo
orcid: 0000-0002-4770-5388
- first_name: Jeremy
full_name: Heyl, Jeremy
last_name: Heyl
citation:
ama: Caiazzo I, Heyl J. Vacuum birefringence and the x-ray polarization from black-hole
accretion disks. Physical Review D. 2018;97(8). doi:10.1103/physrevd.97.083001
apa: Caiazzo, I., & Heyl, J. (2018). Vacuum birefringence and the x-ray polarization
from black-hole accretion disks. Physical Review D. American Physical Society.
https://doi.org/10.1103/physrevd.97.083001
chicago: Caiazzo, Ilaria, and Jeremy Heyl. “Vacuum Birefringence and the X-Ray Polarization
from Black-Hole Accretion Disks.” Physical Review D. American Physical
Society, 2018. https://doi.org/10.1103/physrevd.97.083001.
ieee: I. Caiazzo and J. Heyl, “Vacuum birefringence and the x-ray polarization from
black-hole accretion disks,” Physical Review D, vol. 97, no. 8. American
Physical Society, 2018.
ista: Caiazzo I, Heyl J. 2018. Vacuum birefringence and the x-ray polarization from
black-hole accretion disks. Physical Review D. 97(8), 083001.
mla: Caiazzo, Ilaria, and Jeremy Heyl. “Vacuum Birefringence and the X-Ray Polarization
from Black-Hole Accretion Disks.” Physical Review D, vol. 97, no. 8, 083001,
American Physical Society, 2018, doi:10.1103/physrevd.97.083001.
short: I. Caiazzo, J. Heyl, Physical Review D 97 (2018).
date_created: 2024-03-26T10:39:46Z
date_published: 2018-04-03T00:00:00Z
date_updated: 2024-10-14T12:33:32Z
day: '03'
doi: 10.1103/physrevd.97.083001
extern: '1'
external_id:
arxiv:
- '1803.03798'
fulldoi: https://doi.org/10.1103/physrevd.97.083001
intvolume: ' 97'
issue: '8'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.1803.03798
month: '04'
oa: 1
oa_version: Preprint
publication: Physical Review D
publication_identifier:
eissn:
- 2470-0029
issn:
- 2470-0010
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Vacuum birefringence and the x-ray polarization from black-hole accretion disks
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 97
year: '2018'
...
---
_id: '153'
abstract:
- lang: eng
text: Cells migrating in multicellular organisms steadily traverse complex three-dimensional
(3D) environments. To decipher the underlying cell biology, current experimental
setups either use simplified 2D, tissue-mimetic 3D (e.g., collagen matrices) or
in vivo environments. While only in vivo experiments are truly physiological,
they do not allow for precise manipulation of environmental parameters. 2D in
vitro experiments do allow mechanical and chemical manipulations, but increasing
evidence demonstrates substantial differences of migratory mechanisms in 2D and
3D. Here, we describe simple, robust, and versatile “pillar forests” to investigate
cell migration in complex but fully controllable 3D environments. Pillar forests
are polydimethylsiloxane-based setups, in which two closely adjacent surfaces
are interconnected by arrays of micrometer-sized pillars. Changing the pillar
shape, size, height and the inter-pillar distance precisely manipulates microenvironmental
parameters (e.g., pore sizes, micro-geometry, micro-topology), while being easily
combined with chemotactic cues, surface coatings, diverse cell types and advanced
imaging techniques. Thus, pillar forests combine the advantages of 2D cell migration
assays with the precise definition of 3D environmental parameters.
article_processing_charge: No
author:
- first_name: Jörg
full_name: Renkawitz, Jörg
id: 3F0587C8-F248-11E8-B48F-1D18A9856A87
last_name: Renkawitz
orcid: 0000-0003-2856-3369
- first_name: Anne
full_name: Reversat, Anne
id: 35B76592-F248-11E8-B48F-1D18A9856A87
last_name: Reversat
orcid: 0000-0003-0666-8928
- first_name: Alexander F
full_name: Leithner, Alexander F
id: 3B1B77E4-F248-11E8-B48F-1D18A9856A87
last_name: Leithner
orcid: 0000-0002-1073-744X
- first_name: Jack
full_name: Merrin, Jack
id: 4515C308-F248-11E8-B48F-1D18A9856A87
last_name: Merrin
orcid: 0000-0001-5145-4609
- first_name: Michael K
full_name: Sixt, Michael K
id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87
last_name: Sixt
orcid: 0000-0002-6620-9179
citation:
ama: 'Renkawitz J, Reversat A, Leithner AF, Merrin J, Sixt MK. Micro-engineered
“pillar forests” to study cell migration in complex but controlled 3D environments.
In: Methods in Cell Biology. Vol 147. Academic Press; 2018:79-91. doi:10.1016/bs.mcb.2018.07.004'
apa: Renkawitz, J., Reversat, A., Leithner, A. F., Merrin, J., & Sixt, M. K.
(2018). Micro-engineered “pillar forests” to study cell migration in complex but
controlled 3D environments. In Methods in Cell Biology (Vol. 147, pp. 79–91).
Academic Press. https://doi.org/10.1016/bs.mcb.2018.07.004
chicago: Renkawitz, Jörg, Anne Reversat, Alexander F Leithner, Jack Merrin, and
Michael K Sixt. “Micro-Engineered ‘Pillar Forests’ to Study Cell Migration in
Complex but Controlled 3D Environments.” In Methods in Cell Biology, 147:79–91.
Academic Press, 2018. https://doi.org/10.1016/bs.mcb.2018.07.004.
ieee: J. Renkawitz, A. Reversat, A. F. Leithner, J. Merrin, and M. K. Sixt, “Micro-engineered
‘pillar forests’ to study cell migration in complex but controlled 3D environments,”
in Methods in Cell Biology, vol. 147, Academic Press, 2018, pp. 79–91.
ista: 'Renkawitz J, Reversat A, Leithner AF, Merrin J, Sixt MK. 2018.Micro-engineered
“pillar forests” to study cell migration in complex but controlled 3D environments.
In: Methods in Cell Biology. vol. 147, 79–91.'
mla: Renkawitz, Jörg, et al. “Micro-Engineered ‘Pillar Forests’ to Study Cell Migration
in Complex but Controlled 3D Environments.” Methods in Cell Biology, vol.
147, Academic Press, 2018, pp. 79–91, doi:10.1016/bs.mcb.2018.07.004.
short: J. Renkawitz, A. Reversat, A.F. Leithner, J. Merrin, M.K. Sixt, in:, Methods
in Cell Biology, Academic Press, 2018, pp. 79–91.
date_created: 2018-12-11T11:44:54Z
date_published: 2018-07-27T00:00:00Z
date_updated: 2025-07-10T11:51:09Z
day: '27'
department:
- _id: MiSi
- _id: NanoFab
doi: 10.1016/bs.mcb.2018.07.004
external_id:
isi:
- '000452412300006'
pmid:
- '30165964'
fulldoi: https://doi.org/10.1016/bs.mcb.2018.07.004
intvolume: ' 147'
isi: 1
language:
- iso: eng
month: '07'
oa_version: None
page: 79 - 91
pmid: 1
publication: Methods in Cell Biology
publication_identifier:
issn:
- 0091-679X
publication_status: published
publisher: Academic Press
publist_id: '7768'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Micro-engineered “pillar forests” to study cell migration in complex but controlled
3D environments
type: book_chapter
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 147
year: '2018'
...
---
_id: '155'
abstract:
- lang: eng
text: There is currently significant interest in operating devices in the quantum
regime, where their behaviour cannot be explained through classical mechanics.
Quantum states, including entangled states, are fragile and easily disturbed by
excessive thermal noise. Here we address the question of whether it is possible
to create non-reciprocal devices that encourage the flow of thermal noise towards
or away from a particular quantum device in a network. Our work makes use of the
cascaded systems formalism to answer this question in the affirmative, showing
how a three-port device can be used as an effective thermal transistor, and illustrates
how this formalism maps onto an experimentally-realisable optomechanical system.
Our results pave the way to more resilient quantum devices and to the use of thermal
noise as a resource.
alternative_title:
- Proceedings of SPIE
article_number: 106721N
article_processing_charge: No
arxiv: 1
author:
- first_name: André
full_name: Xuereb, André
last_name: Xuereb
- first_name: Matteo
full_name: Aquilina, Matteo
last_name: Aquilina
- first_name: Shabir
full_name: Barzanjeh, Shabir
id: 2D25E1F6-F248-11E8-B48F-1D18A9856A87
last_name: Barzanjeh
orcid: 0000-0003-0415-1423
citation:
ama: 'Xuereb A, Aquilina M, Barzanjeh S. Routing thermal noise through quantum networks.
In: Andrews DL, Ostendorf A, Bain AJ, Nunzi JM, eds. Vol 10672. SPIE; 2018. doi:10.1117/12.2309928'
apa: 'Xuereb, A., Aquilina, M., & Barzanjeh, S. (2018). Routing thermal noise
through quantum networks. In D. L. Andrews, A. Ostendorf, A. J. Bain, & J.
M. Nunzi (Eds.) (Vol. 10672). Presented at the SPIE: The international society
for optical engineering, Strasbourg, France: SPIE. https://doi.org/10.1117/12.2309928'
chicago: Xuereb, André, Matteo Aquilina, and Shabir Barzanjeh. “Routing Thermal
Noise through Quantum Networks.” edited by D L Andrews, A Ostendorf, A J Bain,
and J M Nunzi, Vol. 10672. SPIE, 2018. https://doi.org/10.1117/12.2309928.
ieee: 'A. Xuereb, M. Aquilina, and S. Barzanjeh, “Routing thermal noise through
quantum networks,” presented at the SPIE: The international society for optical
engineering, Strasbourg, France, 2018, vol. 10672.'
ista: 'Xuereb A, Aquilina M, Barzanjeh S. 2018. Routing thermal noise through quantum
networks. SPIE: The international society for optical engineering, Proceedings
of SPIE, vol. 10672, 106721N.'
mla: Xuereb, André, et al. Routing Thermal Noise through Quantum Networks.
Edited by D L Andrews et al., vol. 10672, 106721N, SPIE, 2018, doi:10.1117/12.2309928.
short: A. Xuereb, M. Aquilina, S. Barzanjeh, in:, D.L. Andrews, A. Ostendorf, A.J.
Bain, J.M. Nunzi (Eds.), SPIE, 2018.
conference:
end_date: 2018-04-26
location: Strasbourg, France
name: 'SPIE: The international society for optical engineering'
start_date: 2018-04-22
date_created: 2018-12-11T11:44:55Z
date_published: 2018-05-04T00:00:00Z
date_updated: 2023-09-18T08:12:24Z
day: '04'
department:
- _id: JoFi
doi: 10.1117/12.2309928
editor:
- first_name: D L
full_name: Andrews, D L
last_name: Andrews
- first_name: A
full_name: Ostendorf, A
last_name: Ostendorf
- first_name: A J
full_name: Bain, A J
last_name: Bain
- first_name: J M
full_name: Nunzi, J M
last_name: Nunzi
external_id:
arxiv:
- '1806.01000'
isi:
- '000453298500019'
fulldoi: https://doi.org/10.1117/12.2309928
intvolume: ' 10672'
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1806.01000
month: '05'
oa: 1
oa_version: Preprint
publication_status: published
publisher: SPIE
publist_id: '7766'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Routing thermal noise through quantum networks
type: conference
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 10672
year: '2018'
...
---
_id: '156'
abstract:
- lang: eng
text: 'Imprecision in timing can sometimes be beneficial: Metric interval temporal
logic (MITL), disabling the expression of punctuality constraints, was shown to
translate to timed automata, yielding an elementary decision procedure. We show
how this principle extends to other forms of dense-time specification using regular
expressions. By providing a clean, automaton-based formal framework for non-punctual
languages, we are able to recover and extend several results in timed systems.
Metric interval regular expressions (MIRE) are introduced, providing regular expressions
with non-singular duration constraints. We obtain that MIRE are expressively complete
relative to a class of one-clock timed automata, which can be determinized using
additional clocks. Metric interval dynamic logic (MIDL) is then defined using
MIRE as temporal modalities. We show that MIDL generalizes known extensions of
MITL, while translating to timed automata at comparable cost.'
alternative_title:
- LNCS
article_processing_charge: No
author:
- first_name: Thomas
full_name: Ferrere, Thomas
id: 40960E6E-F248-11E8-B48F-1D18A9856A87
last_name: Ferrere
orcid: 0000-0001-5199-3143
citation:
ama: 'Ferrere T. The compound interest in relaxing punctuality. In: Vol 10951. Springer;
2018:147-164. doi:10.1007/978-3-319-95582-7_9'
apa: 'Ferrere, T. (2018). The compound interest in relaxing punctuality (Vol. 10951,
pp. 147–164). Presented at the FM: Formal Methods, Oxford, UK: Springer. https://doi.org/10.1007/978-3-319-95582-7_9'
chicago: Ferrere, Thomas. “The Compound Interest in Relaxing Punctuality,” 10951:147–64.
Springer, 2018. https://doi.org/10.1007/978-3-319-95582-7_9.
ieee: 'T. Ferrere, “The compound interest in relaxing punctuality,” presented at
the FM: Formal Methods, Oxford, UK, 2018, vol. 10951, pp. 147–164.'
ista: 'Ferrere T. 2018. The compound interest in relaxing punctuality. FM: Formal
Methods, LNCS, vol. 10951, 147–164.'
mla: Ferrere, Thomas. The Compound Interest in Relaxing Punctuality. Vol.
10951, Springer, 2018, pp. 147–64, doi:10.1007/978-3-319-95582-7_9.
short: T. Ferrere, in:, Springer, 2018, pp. 147–164.
conference:
end_date: 2018-07-17
location: Oxford, UK
name: 'FM: Formal Methods'
start_date: 2018-07-15
date_created: 2018-12-11T11:44:55Z
date_published: 2018-07-12T00:00:00Z
date_updated: 2025-07-10T11:51:10Z
day: '12'
ddc:
- '000'
department:
- _id: ToHe
doi: 10.1007/978-3-319-95582-7_9
external_id:
isi:
- '000489765800009'
file:
- access_level: open_access
checksum: a045c213c42c445f1889326f8db82a0a
content_type: application/pdf
creator: dernst
date_created: 2020-10-09T06:22:41Z
date_updated: 2020-10-09T06:22:41Z
file_id: '8637'
file_name: 2018_LNCS_Ferrere.pdf
file_size: 485576
relation: main_file
success: 1
file_date_updated: 2020-10-09T06:22:41Z
fulldoi: https://doi.org/10.1007/978-3-319-95582-7_9
has_accepted_license: '1'
intvolume: ' 10951'
isi: 1
language:
- iso: eng
month: '07'
oa: 1
oa_version: Submitted Version
page: 147 - 164
project:
- _id: 25F42A32-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: Z211
name: Formal methods for the design and analysis of complex systems
- _id: 25832EC2-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: S 11407_N23
name: Rigorous Systems Engineering
publication_status: published
publisher: Springer
publist_id: '7765'
quality_controlled: '1'
scopus_import: '1'
status: public
title: The compound interest in relaxing punctuality
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 10951
year: '2018'
...
---
_id: '157'
abstract:
- lang: eng
text: 'Social dilemmas occur when incentives for individuals are misaligned with
group interests 1-7 . According to the ''tragedy of the commons'', these misalignments
can lead to overexploitation and collapse of public resources. The resulting behaviours
can be analysed with the tools of game theory 8 . The theory of direct reciprocity
9-15 suggests that repeated interactions can alleviate such dilemmas, but previous
work has assumed that the public resource remains constant over time. Here we
introduce the idea that the public resource is instead changeable and depends
on the strategic choices of individuals. An intuitive scenario is that cooperation
increases the public resource, whereas defection decreases it. Thus, cooperation
allows the possibility of playing a more valuable game with higher payoffs, whereas
defection leads to a less valuable game. We analyse this idea using the theory
of stochastic games 16-19 and evolutionary game theory. We find that the dependence
of the public resource on previous interactions can greatly enhance the propensity
for cooperation. For these results, the interaction between reciprocity and payoff
feedback is crucial: neither repeated interactions in a constant environment nor
single interactions in a changing environment yield similar cooperation rates.
Our framework shows which feedbacks between exploitation and environment - either
naturally occurring or designed - help to overcome social dilemmas.'
acknowledgement: "European Research Council Start Grant 279307, Austrian Science Fund
(FWF) grant P23499-N23, \r\nC.H. acknowledges support from the ISTFELLOW programme."
article_processing_charge: No
author:
- first_name: Christian
full_name: Hilbe, Christian
id: 2FDF8F3C-F248-11E8-B48F-1D18A9856A87
last_name: Hilbe
orcid: 0000-0001-5116-955X
- first_name: Štepán
full_name: Šimsa, Štepán
last_name: Šimsa
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Martin
full_name: Nowak, Martin
last_name: Nowak
citation:
ama: Hilbe C, Šimsa Š, Chatterjee K, Nowak M. Evolution of cooperation in stochastic
games. Nature. 2018;559(7713):246-249. doi:10.1038/s41586-018-0277-x
apa: Hilbe, C., Šimsa, Š., Chatterjee, K., & Nowak, M. (2018). Evolution of
cooperation in stochastic games. Nature. Nature Publishing Group. https://doi.org/10.1038/s41586-018-0277-x
chicago: Hilbe, Christian, Štepán Šimsa, Krishnendu Chatterjee, and Martin Nowak.
“Evolution of Cooperation in Stochastic Games.” Nature. Nature Publishing
Group, 2018. https://doi.org/10.1038/s41586-018-0277-x.
ieee: C. Hilbe, Š. Šimsa, K. Chatterjee, and M. Nowak, “Evolution of cooperation
in stochastic games,” Nature, vol. 559, no. 7713. Nature Publishing Group,
pp. 246–249, 2018.
ista: Hilbe C, Šimsa Š, Chatterjee K, Nowak M. 2018. Evolution of cooperation in
stochastic games. Nature. 559(7713), 246–249.
mla: Hilbe, Christian, et al. “Evolution of Cooperation in Stochastic Games.” Nature,
vol. 559, no. 7713, Nature Publishing Group, 2018, pp. 246–49, doi:10.1038/s41586-018-0277-x.
short: C. Hilbe, Š. Šimsa, K. Chatterjee, M. Nowak, Nature 559 (2018) 246–249.
date_created: 2018-12-11T11:44:56Z
date_published: 2018-07-04T00:00:00Z
date_updated: 2025-04-15T06:30:08Z
day: '04'
ddc:
- '000'
department:
- _id: KrCh
doi: 10.1038/s41586-018-0277-x
ec_funded: 1
external_id:
isi:
- '000438240900054'
file:
- access_level: open_access
checksum: 011ab905cf9a410bc2b96f15174d654d
content_type: application/pdf
creator: dernst
date_created: 2019-11-19T08:09:57Z
date_updated: 2020-07-14T12:45:02Z
file_id: '7049'
file_name: 2018_Nature_Hilbe.pdf
file_size: 2834442
relation: main_file
file_date_updated: 2020-07-14T12:45:02Z
fulldoi: https://doi.org/10.1038/s41586-018-0277-x
has_accepted_license: '1'
intvolume: ' 559'
isi: 1
issue: '7713'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Submitted Version
page: 246 - 249
project:
- _id: 25863FF4-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: S11407
name: Game Theory
- _id: 2581B60A-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '279307'
name: 'Quantitative Graph Games: Theory and Applications'
- _id: 2584A770-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: P 23499-N23
name: Modern Graph Algorithmic Techniques in Formal Verification
- _id: 25832EC2-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: S 11407_N23
name: Rigorous Systems Engineering
- _id: 25681D80-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '291734'
name: International IST Postdoc Fellowship Programme
publication: Nature
publication_status: published
publisher: Nature Publishing Group
publist_id: '7764'
quality_controlled: '1'
related_material:
link:
- description: News on IST Homepage
relation: press_release
url: https://ist.ac.at/en/news/engineering-cooperation/
scopus_import: '1'
status: public
title: Evolution of cooperation in stochastic games
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 559
year: '2018'
...
---
_id: '158'
abstract:
- lang: eng
text: 'The angiosperm seed is composed of three genetically distinct tissues: the
diploid embryo that originates from the fertilized egg cell, the triploid endosperm
that is produced from the fertilized central cell, and the maternal sporophytic
integuments that develop into the seed coat1. At the onset of embryo development
in Arabidopsis thaliana, the zygote divides asymmetrically, producing a small
apical embryonic cell and a larger basal cell that connects the embryo to the
maternal tissue2. The coordinated and synchronous development of the embryo and
the surrounding integuments, and the alignment of their growth axes, suggest communication
between maternal tissues and the embryo. In contrast to animals, however, where
a network of maternal factors that direct embryo patterning have been identified3,4,
only a few maternal mutations have been described to affect embryo development
in plants5–7. Early embryo patterning in Arabidopsis requires accumulation of
the phytohormone auxin in the apical cell by directed transport from the suspensor8–10.
However, the origin of this auxin has remained obscure. Here we investigate the
source of auxin for early embryogenesis and provide evidence that the mother plant
coordinates seed development by supplying auxin to the early embryo from the integuments
of the ovule. We show that auxin response increases in ovules after fertilization,
due to upregulated auxin biosynthesis in the integuments, and this maternally
produced auxin is required for correct embryo development.'
acknowledgement: This work was further supported by the Czech Science Foundation GACR
(GA13-40637S) to J.F.;
article_processing_charge: No
author:
- first_name: Hélène
full_name: Robert, Hélène
last_name: Robert
- first_name: Chulmin
full_name: Park, Chulmin
last_name: Park
- first_name: Carla
full_name: Gutièrrez, Carla
last_name: Gutièrrez
- first_name: Barbara
full_name: Wójcikowska, Barbara
last_name: Wójcikowska
- first_name: Aleš
full_name: Pěnčík, Aleš
last_name: Pěnčík
- first_name: Ondřej
full_name: Novák, Ondřej
last_name: Novák
- first_name: Junyi
full_name: Chen, Junyi
last_name: Chen
- first_name: Wim
full_name: Grunewald, Wim
last_name: Grunewald
- first_name: Thomas
full_name: Dresselhaus, Thomas
last_name: Dresselhaus
- first_name: Jirí
full_name: Friml, Jirí
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
- first_name: Thomas
full_name: Laux, Thomas
last_name: Laux
citation:
ama: Robert H, Park C, Gutièrrez C, et al. Maternal auxin supply contributes to
early embryo patterning in Arabidopsis. Nature Plants. 2018;4(8):548-553.
doi:10.1038/s41477-018-0204-z
apa: Robert, H., Park, C., Gutièrrez, C., Wójcikowska, B., Pěnčík, A., Novák, O.,
… Laux, T. (2018). Maternal auxin supply contributes to early embryo patterning
in Arabidopsis. Nature Plants. Nature Publishing Group. https://doi.org/10.1038/s41477-018-0204-z
chicago: Robert, Hélène, Chulmin Park, Carla Gutièrrez, Barbara Wójcikowska, Aleš
Pěnčík, Ondřej Novák, Junyi Chen, et al. “Maternal Auxin Supply Contributes to
Early Embryo Patterning in Arabidopsis.” Nature Plants. Nature Publishing
Group, 2018. https://doi.org/10.1038/s41477-018-0204-z.
ieee: H. Robert et al., “Maternal auxin supply contributes to early embryo
patterning in Arabidopsis,” Nature Plants, vol. 4, no. 8. Nature Publishing
Group, pp. 548–553, 2018.
ista: Robert H, Park C, Gutièrrez C, Wójcikowska B, Pěnčík A, Novák O, Chen J, Grunewald
W, Dresselhaus T, Friml J, Laux T. 2018. Maternal auxin supply contributes to
early embryo patterning in Arabidopsis. Nature Plants. 4(8), 548–553.
mla: Robert, Hélène, et al. “Maternal Auxin Supply Contributes to Early Embryo Patterning
in Arabidopsis.” Nature Plants, vol. 4, no. 8, Nature Publishing Group,
2018, pp. 548–53, doi:10.1038/s41477-018-0204-z.
short: H. Robert, C. Park, C. Gutièrrez, B. Wójcikowska, A. Pěnčík, O. Novák, J.
Chen, W. Grunewald, T. Dresselhaus, J. Friml, T. Laux, Nature Plants 4 (2018)
548–553.
date_created: 2018-12-11T11:44:56Z
date_published: 2018-07-16T00:00:00Z
date_updated: 2025-04-15T07:48:03Z
day: '16'
department:
- _id: JiFr
doi: 10.1038/s41477-018-0204-z
ec_funded: 1
external_id:
isi:
- '000443861300011'
pmid:
- '30013211'
fulldoi: https://doi.org/10.1038/s41477-018-0204-z
intvolume: ' 4'
isi: 1
issue: '8'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.ncbi.nlm.nih.gov/pubmed/30013211
month: '07'
oa: 1
oa_version: Submitted Version
page: 548 - 553
pmid: 1
project:
- _id: 25716A02-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '282300'
name: Polarity and subcellular dynamics in plants
publication: Nature Plants
publication_status: published
publisher: Nature Publishing Group
publist_id: '7763'
quality_controlled: '1'
related_material:
link:
- description: News on IST Homepage
relation: press_release
url: https://ist.ac.at/en/news/plant-mothers-talk-to-their-embryos-via-the-hormone-auxin/
scopus_import: '1'
status: public
title: Maternal auxin supply contributes to early embryo patterning in Arabidopsis
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 4
year: '2018'
...
---
_id: '159'
abstract:
- lang: eng
text: L-type Ca2+ channels (LTCCs) play a crucial role in excitation-contraction
coupling and release of hormones from secretory cells. They are targets of antihypertensive
and antiarrhythmic drugs such as diltiazem. Here, we present a photoswitchable
diltiazem, FHU-779, which can be used to reversibly block endogenous LTCCs by
light. FHU-779 is as potent as diltiazem and can be used to place pancreatic β-cell
function and cardiac activity under optical control.
article_processing_charge: No
article_type: original
author:
- first_name: Timm
full_name: Fehrentz, Timm
last_name: Fehrentz
- first_name: Florian
full_name: Huber, Florian
last_name: Huber
- first_name: Nina
full_name: Hartrampf, Nina
last_name: Hartrampf
- first_name: Tobias
full_name: Bruegmann, Tobias
last_name: Bruegmann
- first_name: James
full_name: Frank, James
last_name: Frank
- first_name: Nicholas
full_name: Fine, Nicholas
last_name: Fine
- first_name: Daniela
full_name: Malan, Daniela
last_name: Malan
- first_name: Johann G
full_name: Danzl, Johann G
id: 42EFD3B6-F248-11E8-B48F-1D18A9856A87
last_name: Danzl
orcid: 0000-0001-8559-3973
- first_name: Denis
full_name: Tikhonov, Denis
last_name: Tikhonov
- first_name: Maritn
full_name: Sumser, Maritn
last_name: Sumser
- first_name: Philipp
full_name: Sasse, Philipp
last_name: Sasse
- first_name: David
full_name: Hodson, David
last_name: Hodson
- first_name: Boris
full_name: Zhorov, Boris
last_name: Zhorov
- first_name: Nikolaj
full_name: Klocker, Nikolaj
last_name: Klocker
- first_name: Dirk
full_name: Trauner, Dirk
last_name: Trauner
citation:
ama: Fehrentz T, Huber F, Hartrampf N, et al. Optical control of L-type Ca2+ channels
using a diltiazem photoswitch. Nature Chemical Biology. 2018;14(8):764-767.
doi:10.1038/s41589-018-0090-8
apa: Fehrentz, T., Huber, F., Hartrampf, N., Bruegmann, T., Frank, J., Fine, N.,
… Trauner, D. (2018). Optical control of L-type Ca2+ channels using a diltiazem
photoswitch. Nature Chemical Biology. Nature Publishing Group. https://doi.org/10.1038/s41589-018-0090-8
chicago: Fehrentz, Timm, Florian Huber, Nina Hartrampf, Tobias Bruegmann, James
Frank, Nicholas Fine, Daniela Malan, et al. “Optical Control of L-Type Ca2+ Channels
Using a Diltiazem Photoswitch.” Nature Chemical Biology. Nature Publishing
Group, 2018. https://doi.org/10.1038/s41589-018-0090-8.
ieee: T. Fehrentz et al., “Optical control of L-type Ca2+ channels using
a diltiazem photoswitch,” Nature Chemical Biology, vol. 14, no. 8. Nature
Publishing Group, pp. 764–767, 2018.
ista: Fehrentz T, Huber F, Hartrampf N, Bruegmann T, Frank J, Fine N, Malan D, Danzl
JG, Tikhonov D, Sumser M, Sasse P, Hodson D, Zhorov B, Klocker N, Trauner D. 2018.
Optical control of L-type Ca2+ channels using a diltiazem photoswitch. Nature
Chemical Biology. 14(8), 764–767.
mla: Fehrentz, Timm, et al. “Optical Control of L-Type Ca2+ Channels Using a Diltiazem
Photoswitch.” Nature Chemical Biology, vol. 14, no. 8, Nature Publishing
Group, 2018, pp. 764–67, doi:10.1038/s41589-018-0090-8.
short: T. Fehrentz, F. Huber, N. Hartrampf, T. Bruegmann, J. Frank, N. Fine, D.
Malan, J.G. Danzl, D. Tikhonov, M. Sumser, P. Sasse, D. Hodson, B. Zhorov, N.
Klocker, D. Trauner, Nature Chemical Biology 14 (2018) 764–767.
date_created: 2018-12-11T11:44:56Z
date_published: 2018-07-16T00:00:00Z
date_updated: 2023-09-13T09:36:35Z
day: '16'
ddc:
- '570'
department:
- _id: JoDa
doi: 10.1038/s41589-018-0090-8
external_id:
isi:
- '000438970200010'
file:
- access_level: open_access
checksum: d42935094ec845f54a0688bf12986d62
content_type: application/pdf
creator: dernst
date_created: 2020-05-14T12:14:09Z
date_updated: 2020-07-14T12:45:03Z
file_id: '7832'
file_name: 2018_NatureChemicalBiology_Fehrentz.pdf
file_size: 6321000
relation: main_file
file_date_updated: 2020-07-14T12:45:03Z
fulldoi: https://doi.org/10.1038/s41589-018-0090-8
has_accepted_license: '1'
intvolume: ' 14'
isi: 1
issue: '8'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Submitted Version
page: 764 - 767
publication: Nature Chemical Biology
publication_status: published
publisher: Nature Publishing Group
publist_id: '7762'
quality_controlled: '1'
related_material:
link:
- relation: erratum
url: https://doi.org/10.1038/s41589-021-00744-3
scopus_import: '1'
status: public
title: Optical control of L-type Ca2+ channels using a diltiazem photoswitch
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 14
year: '2018'
...
---
_id: '16'
abstract:
- lang: eng
text: We report quantitative evidence of mixing-layer elastic instability in a viscoelastic
fluid flow between two widely spaced obstacles hindering a channel flow at Re
1 and Wi 1. Two mixing layers with nonuniform shear velocity profiles are formed
in the region between the obstacles. The mixing-layer instability arises in the
vicinity of an inflection point on the shear velocity profile with a steep variation
in the elastic stress. The instability results in an intermittent appearance of
small vortices in the mixing layers and an amplification of spatiotemporal averaged
vorticity in the elastic turbulence regime. The latter is characterized through
scaling of friction factor with Wi and both pressure and velocity spectra. Furthermore,
the observations reported provide improved understanding of the stability of the
mixing layer in a viscoelastic fluid at large elasticity, i.e., Wi 1 and Re 1
and oppose the current view of suppression of vorticity solely by polymer additives.
acknowledgement: This work was partially supported by the Israel Science Foundation
(ISF; Grant No. 882/15) and the Binational USA-Israel Foundation (BSF; Grant No.
2016145).
article_number: '103303'
article_processing_charge: No
article_type: original
author:
- first_name: Atul
full_name: Varshney, Atul
id: 2A2006B2-F248-11E8-B48F-1D18A9856A87
last_name: Varshney
orcid: 0000-0002-3072-5999
- first_name: Victor
full_name: Steinberg, Victor
last_name: Steinberg
citation:
ama: Varshney A, Steinberg V. Mixing layer instability and vorticity amplification
in a creeping viscoelastic flow. Physical Review Fluids. 2018;3(10). doi:10.1103/PhysRevFluids.3.103303
apa: Varshney, A., & Steinberg, V. (2018). Mixing layer instability and vorticity
amplification in a creeping viscoelastic flow. Physical Review Fluids.
American Physical Society. https://doi.org/10.1103/PhysRevFluids.3.103303
chicago: Varshney, Atul, and Victor Steinberg. “Mixing Layer Instability and Vorticity
Amplification in a Creeping Viscoelastic Flow.” Physical Review Fluids.
American Physical Society, 2018. https://doi.org/10.1103/PhysRevFluids.3.103303.
ieee: A. Varshney and V. Steinberg, “Mixing layer instability and vorticity amplification
in a creeping viscoelastic flow,” Physical Review Fluids, vol. 3, no. 10.
American Physical Society, 2018.
ista: Varshney A, Steinberg V. 2018. Mixing layer instability and vorticity amplification
in a creeping viscoelastic flow. Physical Review Fluids. 3(10), 103303.
mla: Varshney, Atul, and Victor Steinberg. “Mixing Layer Instability and Vorticity
Amplification in a Creeping Viscoelastic Flow.” Physical Review Fluids,
vol. 3, no. 10, 103303, American Physical Society, 2018, doi:10.1103/PhysRevFluids.3.103303.
short: A. Varshney, V. Steinberg, Physical Review Fluids 3 (2018).
date_created: 2018-12-11T11:44:10Z
date_published: 2018-10-16T00:00:00Z
date_updated: 2025-04-14T07:44:02Z
day: '16'
ddc:
- '532'
department:
- _id: BjHo
doi: 10.1103/PhysRevFluids.3.103303
ec_funded: 1
external_id:
isi:
- '000447469200001'
file:
- access_level: open_access
checksum: 7fc0a2322214d1c04debef36d5bf2e8a
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:13:56Z
date_updated: 2020-07-14T12:45:04Z
file_id: '5043'
file_name: IST-2018-1062-v1+1_PhysRevFluids.3.103303.pdf
file_size: 1838431
relation: main_file
file_date_updated: 2020-07-14T12:45:04Z
fulldoi: https://doi.org/10.1103/PhysRevFluids.3.103303
has_accepted_license: '1'
intvolume: ' 3'
isi: 1
issue: '10'
language:
- iso: eng
month: '10'
oa: 1
oa_version: Submitted Version
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
publication: Physical Review Fluids
publication_status: published
publisher: American Physical Society
publist_id: '8039'
pubrep_id: '1062'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Mixing layer instability and vorticity amplification in a creeping viscoelastic
flow
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 3
year: '2018'
...
---
_id: '160'
abstract:
- lang: eng
text: We present layered concurrent programs, a compact and expressive notation
for specifying refinement proofs of concurrent programs. A layered concurrent
program specifies a sequence of connected concurrent programs, from most concrete
to most abstract, such that common parts of different programs are written exactly
once. These programs are expressed in the ordinary syntax of imperative concurrent
programs using gated atomic actions, sequencing, choice, and (recursive) procedure
calls. Each concurrent program is automatically extracted from the layered program.
We reduce refinement to the safety of a sequence of concurrent checker programs,
one each to justify the connection between every two consecutive concurrent programs.
These checker programs are also automatically extracted from the layered program.
Layered concurrent programs have been implemented in the CIVL verifier which has
been successfully used for the verification of several complex concurrent programs.
alternative_title:
- LNCS
article_processing_charge: No
author:
- first_name: Bernhard
full_name: Kragl, Bernhard
id: 320FC952-F248-11E8-B48F-1D18A9856A87
last_name: Kragl
orcid: 0000-0001-7745-9117
- first_name: Shaz
full_name: Qadeer, Shaz
last_name: Qadeer
citation:
ama: 'Kragl B, Qadeer S. Layered Concurrent Programs. In: Vol 10981. Springer; 2018:79-102.
doi:10.1007/978-3-319-96145-3_5'
apa: 'Kragl, B., & Qadeer, S. (2018). Layered Concurrent Programs (Vol. 10981,
pp. 79–102). Presented at the CAV: Computer Aided Verification, Oxford, UK: Springer.
https://doi.org/10.1007/978-3-319-96145-3_5'
chicago: Kragl, Bernhard, and Shaz Qadeer. “Layered Concurrent Programs,” 10981:79–102.
Springer, 2018. https://doi.org/10.1007/978-3-319-96145-3_5.
ieee: 'B. Kragl and S. Qadeer, “Layered Concurrent Programs,” presented at the CAV:
Computer Aided Verification, Oxford, UK, 2018, vol. 10981, pp. 79–102.'
ista: 'Kragl B, Qadeer S. 2018. Layered Concurrent Programs. CAV: Computer Aided
Verification, LNCS, vol. 10981, 79–102.'
mla: Kragl, Bernhard, and Shaz Qadeer. Layered Concurrent Programs. Vol.
10981, Springer, 2018, pp. 79–102, doi:10.1007/978-3-319-96145-3_5.
short: B. Kragl, S. Qadeer, in:, Springer, 2018, pp. 79–102.
conference:
end_date: 2018-07-17
location: Oxford, UK
name: 'CAV: Computer Aided Verification'
start_date: 2018-07-14
date_created: 2018-12-11T11:44:57Z
date_published: 2018-07-18T00:00:00Z
date_updated: 2026-04-08T07:23:52Z
day: '18'
ddc:
- '000'
department:
- _id: ToHe
doi: 10.1007/978-3-319-96145-3_5
external_id:
isi:
- '000491481600005'
file:
- access_level: open_access
checksum: c64fff560fe5a7532ec10626ad1c215e
content_type: application/pdf
creator: dernst
date_created: 2018-12-17T12:52:12Z
date_updated: 2020-07-14T12:45:04Z
file_id: '5705'
file_name: 2018_LNCS_Kragl.pdf
file_size: 1603844
relation: main_file
file_date_updated: 2020-07-14T12:45:04Z
fulldoi: https://doi.org/10.1007/978-3-319-96145-3_5
has_accepted_license: '1'
intvolume: ' 10981'
isi: 1
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: 79 - 102
project:
- _id: 25F42A32-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: Z211
name: Formal methods for the design and analysis of complex systems
- _id: 25832EC2-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: S 11407_N23
name: Rigorous Systems Engineering
publication_status: published
publisher: Springer
publist_id: '7761'
quality_controlled: '1'
related_material:
record:
- id: '8332'
relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: Layered Concurrent Programs
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: conference
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 10981
year: '2018'
...
---
_id: '161'
abstract:
- lang: eng
text: 'Which properties of metabolic networks can be derived solely from stoichiometry?
Predictive results have been obtained by flux balance analysis (FBA), by postulating
that cells set metabolic fluxes to maximize growth rate. Here we consider a generalization
of FBA to single-cell level using maximum entropy modeling, which we extend and
test experimentally. Specifically, we define for Escherichia coli metabolism a
flux distribution that yields the experimental growth rate: the model, containing
FBA as a limit, provides a better match to measured fluxes and it makes a wide
range of predictions: on flux variability, regulation, and correlations; on the
relative importance of stoichiometry vs. optimization; on scaling relations for
growth rate distributions. We validate the latter here with single-cell data at
different sub-inhibitory antibiotic concentrations. The model quantifies growth
optimization as emerging from the interplay of competitive dynamics in the population
and regulation of metabolism at the level of single cells.'
article_number: '2988'
article_processing_charge: No
author:
- first_name: Daniele
full_name: De Martino, Daniele
id: 3FF5848A-F248-11E8-B48F-1D18A9856A87
last_name: De Martino
orcid: 0000-0002-5214-4706
- first_name: Andersson Anna
full_name: Mc, Andersson Anna
last_name: Mc
- first_name: Tobias
full_name: Bergmiller, Tobias
id: 2C471CFA-F248-11E8-B48F-1D18A9856A87
last_name: Bergmiller
orcid: 0000-0001-5396-4346
- first_name: Calin C
full_name: Guet, Calin C
id: 47F8433E-F248-11E8-B48F-1D18A9856A87
last_name: Guet
orcid: 0000-0001-6220-2052
- first_name: Gasper
full_name: Tkacik, Gasper
id: 3D494DCA-F248-11E8-B48F-1D18A9856A87
last_name: Tkacik
orcid: 0000-0002-6699-1455
citation:
ama: De Martino D, Mc AA, Bergmiller T, Guet CC, Tkačik G. Statistical mechanics
for metabolic networks during steady state growth. Nature Communications.
2018;9(1). doi:10.1038/s41467-018-05417-9
apa: De Martino, D., Mc, A. A., Bergmiller, T., Guet, C. C., & Tkačik, G. (2018).
Statistical mechanics for metabolic networks during steady state growth. Nature
Communications. Springer Nature. https://doi.org/10.1038/s41467-018-05417-9
chicago: De Martino, Daniele, Andersson Anna Mc, Tobias Bergmiller, Calin C Guet,
and Gašper Tkačik. “Statistical Mechanics for Metabolic Networks during Steady
State Growth.” Nature Communications. Springer Nature, 2018. https://doi.org/10.1038/s41467-018-05417-9.
ieee: D. De Martino, A. A. Mc, T. Bergmiller, C. C. Guet, and G. Tkačik, “Statistical
mechanics for metabolic networks during steady state growth,” Nature Communications,
vol. 9, no. 1. Springer Nature, 2018.
ista: De Martino D, Mc AA, Bergmiller T, Guet CC, Tkačik G. 2018. Statistical mechanics
for metabolic networks during steady state growth. Nature Communications. 9(1),
2988.
mla: De Martino, Daniele, et al. “Statistical Mechanics for Metabolic Networks during
Steady State Growth.” Nature Communications, vol. 9, no. 1, 2988, Springer
Nature, 2018, doi:10.1038/s41467-018-05417-9.
short: D. De Martino, A.A. Mc, T. Bergmiller, C.C. Guet, G. Tkačik, Nature Communications
9 (2018).
date_created: 2018-12-11T11:44:57Z
date_published: 2018-07-30T00:00:00Z
date_updated: 2025-04-15T06:50:08Z
day: '30'
ddc:
- '570'
department:
- _id: GaTk
- _id: CaGu
doi: 10.1038/s41467-018-05417-9
ec_funded: 1
external_id:
isi:
- '000440149300021'
file:
- access_level: open_access
checksum: 3ba7ab27b27723c7dcf633e8fc1f8f18
content_type: application/pdf
creator: dernst
date_created: 2018-12-17T16:44:28Z
date_updated: 2020-07-14T12:45:06Z
file_id: '5728'
file_name: 2018_NatureComm_DeMartino.pdf
file_size: 1043205
relation: main_file
file_date_updated: 2020-07-14T12:45:06Z
fulldoi: https://doi.org/10.1038/s41467-018-05417-9
has_accepted_license: '1'
intvolume: ' 9'
isi: 1
issue: '1'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
project:
- _id: 254E9036-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: P28844-B27
name: Biophysics of information processing in gene regulation
- _id: 25681D80-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '291734'
name: International IST Postdoc Fellowship Programme
publication: Nature Communications
publication_status: published
publisher: Springer Nature
publist_id: '7760'
quality_controlled: '1'
related_material:
record:
- id: '5587'
relation: popular_science
status: public
scopus_import: '1'
status: public
title: Statistical mechanics for metabolic networks during steady state growth
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: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 9
year: '2018'
...
---
_id: '162'
abstract:
- lang: eng
text: 'Facial shape is the basis for facial recognition and categorization. Facial
features reflect the underlying geometry of the skeletal structures. Here, we
reveal that cartilaginous nasal capsule (corresponding to upper jaw and face)
is shaped by signals generated by neural structures: brain and olfactory epithelium.
Brain-derived Sonic Hedgehog (SHH) enables the induction of nasal septum and posterior
nasal capsule, whereas the formation of a capsule roof is controlled by signals
from the olfactory epithelium. Unexpectedly, the cartilage of the nasal capsule
turned out to be important for shaping membranous facial bones during development.
This suggests that conserved neurosensory structures could benefit from protection
and have evolved signals inducing cranial cartilages encasing them. Experiments
with mutant mice revealed that the genomic regulatory regions controlling production
of SHH in the nervous system contribute to facial cartilage morphogenesis, which
might be a mechanism responsible for the adaptive evolution of animal faces and
snouts.'
article_number: e34465
article_processing_charge: No
author:
- first_name: Marketa
full_name: Kaucka, Marketa
last_name: Kaucka
- first_name: Julian
full_name: Petersen, Julian
last_name: Petersen
- first_name: Marketa
full_name: Tesarova, Marketa
last_name: Tesarova
- first_name: Bara
full_name: Szarowska, Bara
last_name: Szarowska
- first_name: Maria
full_name: Kastriti, Maria
last_name: Kastriti
- first_name: Meng
full_name: Xie, Meng
last_name: Xie
- first_name: Anna
full_name: Kicheva, Anna
id: 3959A2A0-F248-11E8-B48F-1D18A9856A87
last_name: Kicheva
orcid: 0000-0003-4509-4998
- first_name: Karl
full_name: Annusver, Karl
last_name: Annusver
- first_name: Maria
full_name: Kasper, Maria
last_name: Kasper
- first_name: Orsolya
full_name: Symmons, Orsolya
last_name: Symmons
- first_name: Leslie
full_name: Pan, Leslie
last_name: Pan
- first_name: Francois
full_name: Spitz, Francois
last_name: Spitz
- first_name: Jozef
full_name: Kaiser, Jozef
last_name: Kaiser
- first_name: Maria
full_name: Hovorakova, Maria
last_name: Hovorakova
- first_name: Tomas
full_name: Zikmund, Tomas
last_name: Zikmund
- first_name: Kazunori
full_name: Sunadome, Kazunori
last_name: Sunadome
- first_name: Michael P
full_name: Matise, Michael P
last_name: Matise
- first_name: Hui
full_name: Wang, Hui
last_name: Wang
- first_name: Ulrika
full_name: Marklund, Ulrika
last_name: Marklund
- first_name: Hind
full_name: Abdo, Hind
last_name: Abdo
- first_name: Patrik
full_name: Ernfors, Patrik
last_name: Ernfors
- first_name: Pascal
full_name: Maire, Pascal
last_name: Maire
- first_name: Maud
full_name: Wurmser, Maud
last_name: Wurmser
- first_name: Andrei S
full_name: Chagin, Andrei S
last_name: Chagin
- first_name: Kaj
full_name: Fried, Kaj
last_name: Fried
- first_name: Igor
full_name: Adameyko, Igor
last_name: Adameyko
citation:
ama: Kaucka M, Petersen J, Tesarova M, et al. Signals from the brain and olfactory
epithelium control shaping of the mammalian nasal capsule cartilage. eLife.
2018;7. doi:10.7554/eLife.34465
apa: Kaucka, M., Petersen, J., Tesarova, M., Szarowska, B., Kastriti, M., Xie, M.,
… Adameyko, I. (2018). Signals from the brain and olfactory epithelium control
shaping of the mammalian nasal capsule cartilage. ELife. eLife Sciences
Publications. https://doi.org/10.7554/eLife.34465
chicago: Kaucka, Marketa, Julian Petersen, Marketa Tesarova, Bara Szarowska, Maria
Kastriti, Meng Xie, Anna Kicheva, et al. “Signals from the Brain and Olfactory
Epithelium Control Shaping of the Mammalian Nasal Capsule Cartilage.” ELife.
eLife Sciences Publications, 2018. https://doi.org/10.7554/eLife.34465.
ieee: M. Kaucka et al., “Signals from the brain and olfactory epithelium
control shaping of the mammalian nasal capsule cartilage,” eLife, vol.
7. eLife Sciences Publications, 2018.
ista: Kaucka M, Petersen J, Tesarova M, Szarowska B, Kastriti M, Xie M, Kicheva
A, Annusver K, Kasper M, Symmons O, Pan L, Spitz F, Kaiser J, Hovorakova M, Zikmund
T, Sunadome K, Matise MP, Wang H, Marklund U, Abdo H, Ernfors P, Maire P, Wurmser
M, Chagin AS, Fried K, Adameyko I. 2018. Signals from the brain and olfactory
epithelium control shaping of the mammalian nasal capsule cartilage. eLife. 7,
e34465.
mla: Kaucka, Marketa, et al. “Signals from the Brain and Olfactory Epithelium Control
Shaping of the Mammalian Nasal Capsule Cartilage.” ELife, vol. 7, e34465,
eLife Sciences Publications, 2018, doi:10.7554/eLife.34465.
short: M. Kaucka, J. Petersen, M. Tesarova, B. Szarowska, M. Kastriti, M. Xie, A.
Kicheva, K. Annusver, M. Kasper, O. Symmons, L. Pan, F. Spitz, J. Kaiser, M. Hovorakova,
T. Zikmund, K. Sunadome, M.P. Matise, H. Wang, U. Marklund, H. Abdo, P. Ernfors,
P. Maire, M. Wurmser, A.S. Chagin, K. Fried, I. Adameyko, ELife 7 (2018).
date_created: 2018-12-11T11:44:57Z
date_published: 2018-06-13T00:00:00Z
date_updated: 2025-04-14T07:27:30Z
day: '13'
ddc:
- '571'
department:
- _id: AnKi
doi: 10.7554/eLife.34465
ec_funded: 1
external_id:
isi:
- '000436227500001'
file:
- access_level: open_access
checksum: da2378cdcf6b5461dcde194e4d608343
content_type: application/pdf
creator: dernst
date_created: 2018-12-17T16:41:58Z
date_updated: 2020-07-14T12:45:07Z
file_id: '5727'
file_name: 2018_eLife_Kaucka.pdf
file_size: 9816484
relation: main_file
file_date_updated: 2020-07-14T12:45:07Z
fulldoi: https://doi.org/10.7554/eLife.34465
has_accepted_license: '1'
intvolume: ' 7'
isi: 1
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
project:
- _id: B6FC0238-B512-11E9-945C-1524E6697425
call_identifier: H2020
grant_number: '680037'
name: Coordination of Patterning And Growth In the Spinal Cord
publication: eLife
publication_status: published
publisher: eLife Sciences Publications
publist_id: '7759'
quality_controlled: '1'
related_material:
record:
- id: '9838'
relation: research_data
status: public
scopus_import: '1'
status: public
title: Signals from the brain and olfactory epithelium control shaping of the mammalian
nasal capsule cartilage
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: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 7
year: '2018'
...
---
_id: '163'
abstract:
- lang: eng
text: For ultrafast fixation of biological samples to avoid artifacts, high-pressure
freezing (HPF) followed by freeze substitution (FS) is preferred over chemical
fixation at room temperature. After HPF, samples are maintained at low temperature
during dehydration and fixation, while avoiding damaging recrystallization. This
is a notoriously slow process. McDonald and Webb demonstrated, in 2011, that sample
agitation during FS dramatically reduces the necessary time. Then, in 2015, we
(H.G. and S.R.) introduced an agitation module into the cryochamber of an automated
FS unit and demonstrated that the preparation of algae could be shortened from
days to a couple of hours. We argued that variability in the processing, reproducibility,
and safety issues are better addressed using automated FS units. For dissemination,
we started low-cost manufacturing of agitation modules for two of the most widely
used FS units, the Automatic Freeze Substitution Systems, AFS(1) and AFS2, from
Leica Microsystems, using three dimensional (3D)-printing of the major components.
To test them, several labs independently used the modules on a wide variety of
specimens that had previously been processed by manual agitation, or without agitation.
We demonstrate that automated processing with sample agitation saves time, increases
flexibility with respect to sample requirements and protocols, and produces data
of at least as good quality as other approaches.
article_processing_charge: No
article_type: original
author:
- first_name: Siegfried
full_name: Reipert, Siegfried
last_name: Reipert
- first_name: Helmuth
full_name: Goldammer, Helmuth
last_name: Goldammer
- first_name: Christine
full_name: Richardson, Christine
last_name: Richardson
- first_name: Martin
full_name: Goldberg, Martin
last_name: Goldberg
- first_name: Timothy
full_name: Hawkins, Timothy
last_name: Hawkins
- first_name: Elena
full_name: Hollergschwandtner, Elena
id: 3C054040-F248-11E8-B48F-1D18A9856A87
last_name: Hollergschwandtner
- first_name: Walter
full_name: Kaufmann, Walter
id: 3F99E422-F248-11E8-B48F-1D18A9856A87
last_name: Kaufmann
orcid: 0000-0001-9735-5315
- first_name: Sebastian
full_name: Antreich, Sebastian
last_name: Antreich
- first_name: York
full_name: Stierhof, York
last_name: Stierhof
citation:
ama: 'Reipert S, Goldammer H, Richardson C, et al. Agitation modules: Flexible means
to accelerate automated freeze substitution. Journal of Histochemistry and
Cytochemistry. 2018;66(12):903-921. doi:10.1369/0022155418786698'
apa: 'Reipert, S., Goldammer, H., Richardson, C., Goldberg, M., Hawkins, T., Saeckl,
E., … Stierhof, Y. (2018). Agitation modules: Flexible means to accelerate automated
freeze substitution. Journal of Histochemistry and Cytochemistry. SAGE
Publications. https://doi.org/10.1369/0022155418786698'
chicago: 'Reipert, Siegfried, Helmuth Goldammer, Christine Richardson, Martin Goldberg,
Timothy Hawkins, Elena Saeckl, Walter Kaufmann, Sebastian Antreich, and York Stierhof.
“Agitation Modules: Flexible Means to Accelerate Automated Freeze Substitution.”
Journal of Histochemistry and Cytochemistry. SAGE Publications, 2018. https://doi.org/10.1369/0022155418786698.'
ieee: 'S. Reipert et al., “Agitation modules: Flexible means to accelerate
automated freeze substitution,” Journal of Histochemistry and Cytochemistry,
vol. 66, no. 12. SAGE Publications, pp. 903–921, 2018.'
ista: 'Reipert S, Goldammer H, Richardson C, Goldberg M, Hawkins T, Saeckl E, Kaufmann
W, Antreich S, Stierhof Y. 2018. Agitation modules: Flexible means to accelerate
automated freeze substitution. Journal of Histochemistry and Cytochemistry. 66(12),
903–921.'
mla: 'Reipert, Siegfried, et al. “Agitation Modules: Flexible Means to Accelerate
Automated Freeze Substitution.” Journal of Histochemistry and Cytochemistry,
vol. 66, no. 12, SAGE Publications, 2018, pp. 903–21, doi:10.1369/0022155418786698.'
short: S. Reipert, H. Goldammer, C. Richardson, M. Goldberg, T. Hawkins, E. Saeckl,
W. Kaufmann, S. Antreich, Y. Stierhof, Journal of Histochemistry and Cytochemistry
66 (2018) 903–921.
date_created: 2018-12-11T11:44:57Z
date_published: 2018-12-01T00:00:00Z
date_updated: 2026-06-18T17:50:00Z
day: '01'
ddc:
- '570'
department:
- _id: RySh
- _id: EM-Fac
doi: 10.1369/0022155418786698
external_id:
isi:
- '000452277700005'
pmid:
- '29969056'
fulldoi: https://doi.org/10.1369/0022155418786698
intvolume: ' 66'
isi: 1
issue: '12'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1369/0022155418786698
month: '12'
oa: 1
oa_version: Published Version
page: 903-921
pmid: 1
publication: Journal of Histochemistry and Cytochemistry
publication_identifier:
issn:
- 0022-1554
publication_status: published
publisher: SAGE Publications
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Agitation modules: Flexible means to accelerate automated freeze substitution'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 66
year: '2018'
...
---
_id: '17'
abstract:
- lang: eng
text: Creeping flow of polymeric fluid without inertia exhibits elastic instabilities
and elastic turbulence accompanied by drag enhancement due to elastic stress produced
by flow-stretched polymers. However, in inertia-dominated flow at high Re and
low fluid elasticity El, a reduction in turbulent frictional drag is caused by
an intricate competition between inertial and elastic stresses. Here we explore
the effect of inertia on the stability of viscoelastic flow in a broad range of
control parameters El and (Re,Wi). We present the stability diagram of observed
flow regimes in Wi-Re coordinates and find that the instabilities' onsets show
an unexpectedly nonmonotonic dependence on El. Further, three distinct regions
in the diagram are identified based on El. Strikingly, for high-elasticity fluids
we discover a complete relaminarization of flow at Reynolds number in the range
of 1 to 10, different from a well-known turbulent drag reduction. These counterintuitive
effects may be explained by a finite polymer extensibility and a suppression of
vorticity at high Wi. Our results call for further theoretical and numerical development
to uncover the role of inertial effect on elastic turbulence in a viscoelastic
flow.
article_number: '103302 '
article_processing_charge: No
author:
- first_name: Atul
full_name: Varshney, Atul
id: 2A2006B2-F248-11E8-B48F-1D18A9856A87
last_name: Varshney
orcid: 0000-0002-3072-5999
- first_name: Victor
full_name: Steinberg, Victor
last_name: Steinberg
citation:
ama: Varshney A, Steinberg V. Drag enhancement and drag reduction in viscoelastic
flow. Physical Review Fluids. 2018;3(10). doi:10.1103/PhysRevFluids.3.103302
apa: Varshney, A., & Steinberg, V. (2018). Drag enhancement and drag reduction
in viscoelastic flow. Physical Review Fluids. American Physical Society.
https://doi.org/10.1103/PhysRevFluids.3.103302
chicago: Varshney, Atul, and Victor Steinberg. “Drag Enhancement and Drag Reduction
in Viscoelastic Flow.” Physical Review Fluids. American Physical Society,
2018. https://doi.org/10.1103/PhysRevFluids.3.103302.
ieee: A. Varshney and V. Steinberg, “Drag enhancement and drag reduction in viscoelastic
flow,” Physical Review Fluids, vol. 3, no. 10. American Physical Society,
2018.
ista: Varshney A, Steinberg V. 2018. Drag enhancement and drag reduction in viscoelastic
flow. Physical Review Fluids. 3(10), 103302.
mla: Varshney, Atul, and Victor Steinberg. “Drag Enhancement and Drag Reduction
in Viscoelastic Flow.” Physical Review Fluids, vol. 3, no. 10, 103302,
American Physical Society, 2018, doi:10.1103/PhysRevFluids.3.103302.
short: A. Varshney, V. Steinberg, Physical Review Fluids 3 (2018).
date_created: 2018-12-11T11:44:11Z
date_published: 2018-10-15T00:00:00Z
date_updated: 2025-04-14T07:43:59Z
day: '15'
ddc:
- '532'
department:
- _id: BjHo
doi: 10.1103/PhysRevFluids.3.103302
ec_funded: 1
external_id:
isi:
- '000447311500001'
file:
- access_level: open_access
checksum: e1445be33e8165114e96246275600750
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:10:14Z
date_updated: 2020-07-14T12:45:12Z
file_id: '4800'
file_name: IST-2018-1061-v1+1_PhysRevFluids.3.103302.pdf
file_size: 1409040
relation: main_file
file_date_updated: 2020-07-14T12:45:12Z
fulldoi: https://doi.org/10.1103/PhysRevFluids.3.103302
has_accepted_license: '1'
intvolume: ' 3'
isi: 1
issue: '10'
language:
- iso: eng
month: '10'
oa: 1
oa_version: Published Version
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
publication: Physical Review Fluids
publication_status: published
publisher: American Physical Society
publist_id: '8038'
pubrep_id: '1061'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Drag enhancement and drag reduction in viscoelastic flow
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 3
year: '2018'
...
---
_id: '185'
abstract:
- lang: eng
text: We resolve in the affirmative conjectures of A. Skopenkov and Repovš (1998),
and M. Skopenkov (2003) generalizing the classical Hanani-Tutte theorem to the
setting of approximating maps of graphs on 2-dimensional surfaces by embeddings.
Our proof of this result is constructive and almost immediately implies an efficient
algorithm for testing whether a given piecewise linear map of a graph in a surface
is approximable by an embedding. More precisely, an instance of this problem consists
of (i) a graph G whose vertices are partitioned into clusters and whose inter-cluster
edges are partitioned into bundles, and (ii) a region R of a 2-dimensional compact
surface M given as the union of a set of pairwise disjoint discs corresponding
to the clusters and a set of pairwise disjoint "pipes" corresponding
to the bundles, connecting certain pairs of these discs. We are to decide whether
G can be embedded inside M so that the vertices in every cluster are drawn in
the corresponding disc, the edges in every bundle pass only through its corresponding
pipe, and every edge crosses the boundary of each disc at most once.
alternative_title:
- Leibniz International Proceedings in Information, LIPIcs
article_number: '39'
author:
- first_name: Radoslav
full_name: Fulek, Radoslav
id: 39F3FFE4-F248-11E8-B48F-1D18A9856A87
last_name: Fulek
orcid: 0000-0001-8485-1774
- first_name: Jan
full_name: Kynčl, Jan
last_name: Kynčl
citation:
ama: 'Fulek R, Kynčl J. Hanani-Tutte for approximating maps of graphs. In: Vol 99.
Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2018. doi:10.4230/LIPIcs.SoCG.2018.39'
apa: 'Fulek, R., & Kynčl, J. (2018). Hanani-Tutte for approximating maps of
graphs (Vol. 99). Presented at the SoCG: Symposium on Computational Geometry,
Budapest, Hungary: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPIcs.SoCG.2018.39'
chicago: Fulek, Radoslav, and Jan Kynčl. “Hanani-Tutte for Approximating Maps of
Graphs,” Vol. 99. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2018. https://doi.org/10.4230/LIPIcs.SoCG.2018.39.
ieee: 'R. Fulek and J. Kynčl, “Hanani-Tutte for approximating maps of graphs,” presented
at the SoCG: Symposium on Computational Geometry, Budapest, Hungary, 2018, vol.
99.'
ista: 'Fulek R, Kynčl J. 2018. Hanani-Tutte for approximating maps of graphs. SoCG:
Symposium on Computational Geometry, Leibniz International Proceedings in Information,
LIPIcs, vol. 99, 39.'
mla: Fulek, Radoslav, and Jan Kynčl. Hanani-Tutte for Approximating Maps of Graphs.
Vol. 99, 39, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2018, doi:10.4230/LIPIcs.SoCG.2018.39.
short: R. Fulek, J. Kynčl, in:, Schloss Dagstuhl - Leibniz-Zentrum für Informatik,
2018.
conference:
end_date: 2018-06-14
location: Budapest, Hungary
name: 'SoCG: Symposium on Computational Geometry'
start_date: 2018-06-11
date_created: 2018-12-11T11:45:04Z
date_published: 2018-01-01T00:00:00Z
date_updated: 2021-01-12T06:53:36Z
day: '01'
ddc:
- '510'
department:
- _id: UlWa
doi: 10.4230/LIPIcs.SoCG.2018.39
file:
- access_level: open_access
checksum: f1b94f1a75b37c414a1f61d59fb2cd4c
content_type: application/pdf
creator: dernst
date_created: 2018-12-17T12:33:52Z
date_updated: 2020-07-14T12:45:19Z
file_id: '5701'
file_name: 2018_LIPIcs_Fulek.pdf
file_size: 718857
relation: main_file
file_date_updated: 2020-07-14T12:45:19Z
fulldoi: https://doi.org/10.4230/LIPIcs.SoCG.2018.39
has_accepted_license: '1'
intvolume: ' 99'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
project:
- _id: 261FA626-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: M02281
name: Eliminating intersections in drawings of graphs
publication_identifier:
isbn:
- 978-3-95977-066-8
publication_status: published
publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik
publist_id: '7735'
quality_controlled: '1'
scopus_import: 1
status: public
title: Hanani-Tutte for approximating maps of graphs
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 99
year: '2018'
...
---
_id: '186'
abstract:
- lang: eng
text: 'A drawing of a graph on a surface is independently even if every pair of
nonadjacent edges in the drawing crosses an even number of times. The ℤ2-genus
of a graph G is the minimum g such that G has an independently even drawing on
the orientable surface of genus g. An unpublished result by Robertson and Seymour
implies that for every t, every graph of sufficiently large genus contains as
a minor a projective t × t grid or one of the following so-called t-Kuratowski
graphs: K3, t, or t copies of K5 or K3,3 sharing at most 2 common vertices. We
show that the ℤ2-genus of graphs in these families is unbounded in t; in fact,
equal to their genus. Together, this implies that the genus of a graph is bounded
from above by a function of its ℤ2-genus, solving a problem posed by Schaefer
and Štefankovič, and giving an approximate version of the Hanani-Tutte theorem
on orientable surfaces.'
alternative_title:
- LIPIcs
article_processing_charge: No
arxiv: 1
author:
- first_name: Radoslav
full_name: Fulek, Radoslav
id: 39F3FFE4-F248-11E8-B48F-1D18A9856A87
last_name: Fulek
orcid: 0000-0001-8485-1774
- first_name: Jan
full_name: Kynčl, Jan
last_name: Kynčl
citation:
ama: 'Fulek R, Kynčl J. The ℤ2-Genus of Kuratowski minors. In: Vol 99. Schloss Dagstuhl
- Leibniz-Zentrum für Informatik; 2018:40.1-40.14. doi:10.4230/LIPIcs.SoCG.2018.40'
apa: 'Fulek, R., & Kynčl, J. (2018). The ℤ2-Genus of Kuratowski minors (Vol.
99, p. 40.1-40.14). Presented at the SoCG: Symposium on Computational Geometry,
Budapest, Hungary: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPIcs.SoCG.2018.40'
chicago: Fulek, Radoslav, and Jan Kynčl. “The ℤ2-Genus of Kuratowski Minors,” 99:40.1-40.14.
Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2018. https://doi.org/10.4230/LIPIcs.SoCG.2018.40.
ieee: 'R. Fulek and J. Kynčl, “The ℤ2-Genus of Kuratowski minors,” presented at
the SoCG: Symposium on Computational Geometry, Budapest, Hungary, 2018, vol. 99,
p. 40.1-40.14.'
ista: 'Fulek R, Kynčl J. 2018. The ℤ2-Genus of Kuratowski minors. SoCG: Symposium
on Computational Geometry, LIPIcs, vol. 99, 40.1-40.14.'
mla: Fulek, Radoslav, and Jan Kynčl. The ℤ2-Genus of Kuratowski Minors. Vol.
99, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2018, p. 40.1-40.14, doi:10.4230/LIPIcs.SoCG.2018.40.
short: R. Fulek, J. Kynčl, in:, Schloss Dagstuhl - Leibniz-Zentrum für Informatik,
2018, p. 40.1-40.14.
conference:
end_date: 2018-06-14
location: Budapest, Hungary
name: 'SoCG: Symposium on Computational Geometry'
start_date: 2018-06-11
date_created: 2018-12-11T11:45:05Z
date_published: 2018-06-11T00:00:00Z
date_updated: 2025-04-14T13:52:37Z
day: '11'
department:
- _id: UlWa
doi: 10.4230/LIPIcs.SoCG.2018.40
external_id:
arxiv:
- '1803.05085'
fulldoi: https://doi.org/10.4230/LIPIcs.SoCG.2018.40
intvolume: ' 99'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1803.05085
month: '06'
oa: 1
oa_version: Submitted Version
page: 40.1 - 40.14
project:
- _id: 261FA626-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: M02281
name: Eliminating intersections in drawings of graphs
publication_status: published
publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik
publist_id: '7734'
quality_controlled: '1'
related_material:
record:
- id: '11593'
relation: later_version
status: public
scopus_import: '1'
status: public
title: The ℤ2-Genus of Kuratowski minors
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 99
year: '2018'
...
---
_id: '187'
abstract:
- lang: eng
text: 'Given a locally finite X ⊆ ℝd and a radius r ≥ 0, the k-fold cover of X and
r consists of all points in ℝd that have k or more points of X within distance
r. We consider two filtrations - one in scale obtained by fixing k and increasing
r, and the other in depth obtained by fixing r and decreasing k - and we compute
the persistence diagrams of both. While standard methods suffice for the filtration
in scale, we need novel geometric and topological concepts for the filtration
in depth. In particular, we introduce a rhomboid tiling in ℝd+1 whose horizontal
integer slices are the order-k Delaunay mosaics of X, and construct a zigzag module
from Delaunay mosaics that is isomorphic to the persistence module of the multi-covers. '
acknowledgement: This work is partially supported by the DFG Collaborative Research
Center TRR 109, ‘Discretization in Geometry and Dynamics’, through grant no. I02979-N35
of the Austrian Science Fund (FWF).
alternative_title:
- LIPIcs
article_number: '34'
author:
- first_name: Herbert
full_name: Edelsbrunner, Herbert
id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
last_name: Edelsbrunner
orcid: 0000-0002-9823-6833
- first_name: Georg F
full_name: Osang, Georg F
id: 464B40D6-F248-11E8-B48F-1D18A9856A87
last_name: Osang
orcid: 0000-0002-8882-5116
citation:
ama: 'Edelsbrunner H, Osang GF. The multi-cover persistence of Euclidean balls.
In: Vol 99. Schloss Dagstuhl - Leibniz-Zentrum für Informatik; 2018. doi:10.4230/LIPIcs.SoCG.2018.34'
apa: 'Edelsbrunner, H., & Osang, G. F. (2018). The multi-cover persistence of
Euclidean balls (Vol. 99). Presented at the SoCG: Symposium on Computational Geometry,
Budapest, Hungary: Schloss Dagstuhl - Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPIcs.SoCG.2018.34'
chicago: Edelsbrunner, Herbert, and Georg F Osang. “The Multi-Cover Persistence
of Euclidean Balls,” Vol. 99. Schloss Dagstuhl - Leibniz-Zentrum für Informatik,
2018. https://doi.org/10.4230/LIPIcs.SoCG.2018.34.
ieee: 'H. Edelsbrunner and G. F. Osang, “The multi-cover persistence of Euclidean
balls,” presented at the SoCG: Symposium on Computational Geometry, Budapest,
Hungary, 2018, vol. 99.'
ista: 'Edelsbrunner H, Osang GF. 2018. The multi-cover persistence of Euclidean
balls. SoCG: Symposium on Computational Geometry, LIPIcs, vol. 99, 34.'
mla: Edelsbrunner, Herbert, and Georg F. Osang. The Multi-Cover Persistence of
Euclidean Balls. Vol. 99, 34, Schloss Dagstuhl - Leibniz-Zentrum für Informatik,
2018, doi:10.4230/LIPIcs.SoCG.2018.34.
short: H. Edelsbrunner, G.F. Osang, in:, Schloss Dagstuhl - Leibniz-Zentrum für
Informatik, 2018.
conference:
end_date: 2018-06-14
location: Budapest, Hungary
name: 'SoCG: Symposium on Computational Geometry'
start_date: 2018-06-11
date_created: 2018-12-11T11:45:05Z
date_published: 2018-06-11T00:00:00Z
date_updated: 2026-04-08T07:01:29Z
day: '11'
ddc:
- '516'
department:
- _id: HeEd
doi: 10.4230/LIPIcs.SoCG.2018.34
file:
- access_level: open_access
checksum: d8c0533ad0018eb4ed1077475eb8fc18
content_type: application/pdf
creator: dernst
date_created: 2018-12-18T09:27:22Z
date_updated: 2020-07-14T12:45:19Z
file_id: '5738'
file_name: 2018_LIPIcs_Edelsbrunner_Osang.pdf
file_size: 528018
relation: main_file
file_date_updated: 2020-07-14T12:45:19Z
fulldoi: https://doi.org/10.4230/LIPIcs.SoCG.2018.34
has_accepted_license: '1'
intvolume: ' 99'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
project:
- _id: 2561EBF4-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: I02979-N35
name: Persistence and stability of geometric complexes
publication_status: published
publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik
publist_id: '7732'
quality_controlled: '1'
related_material:
record:
- id: '9317'
relation: later_version
status: public
- id: '9056'
relation: dissertation_contains
status: public
scopus_import: 1
status: public
title: The multi-cover persistence of Euclidean balls
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 99
year: '2018'
...
---
_id: '188'
abstract:
- lang: eng
text: Smallest enclosing spheres of finite point sets are central to methods in
topological data analysis. Focusing on Bregman divergences to measure dissimilarity,
we prove bounds on the location of the center of a smallest enclosing sphere.
These bounds depend on the range of radii for which Bregman balls are convex.
acknowledgement: This research is partially supported by the Office of Naval Research,
through grant no. N62909-18-1-2038, and the DFG Collaborative Research Center TRR
109, ‘Discretization in Geometry and Dynamics’, through grant no. I02979-N35 of
the Austrian Science Fund
alternative_title:
- Leibniz International Proceedings in Information, LIPIcs
author:
- first_name: Herbert
full_name: Edelsbrunner, Herbert
id: 3FB178DA-F248-11E8-B48F-1D18A9856A87
last_name: Edelsbrunner
orcid: 0000-0002-9823-6833
- first_name: Ziga
full_name: Virk, Ziga
last_name: Virk
- first_name: Hubert
full_name: Wagner, Hubert
id: 379CA8B8-F248-11E8-B48F-1D18A9856A87
last_name: Wagner
citation:
ama: 'Edelsbrunner H, Virk Z, Wagner H. Smallest enclosing spheres and Chernoff
points in Bregman geometry. In: Vol 99. Schloss Dagstuhl - Leibniz-Zentrum für
Informatik; 2018:35:1-35:13. doi:10.4230/LIPIcs.SoCG.2018.35'
apa: 'Edelsbrunner, H., Virk, Z., & Wagner, H. (2018). Smallest enclosing spheres
and Chernoff points in Bregman geometry (Vol. 99, p. 35:1-35:13). Presented at
the SoCG: Symposium on Computational Geometry, Budapest, Hungary: Schloss Dagstuhl
- Leibniz-Zentrum für Informatik. https://doi.org/10.4230/LIPIcs.SoCG.2018.35'
chicago: Edelsbrunner, Herbert, Ziga Virk, and Hubert Wagner. “Smallest Enclosing
Spheres and Chernoff Points in Bregman Geometry,” 99:35:1-35:13. Schloss Dagstuhl
- Leibniz-Zentrum für Informatik, 2018. https://doi.org/10.4230/LIPIcs.SoCG.2018.35.
ieee: 'H. Edelsbrunner, Z. Virk, and H. Wagner, “Smallest enclosing spheres and
Chernoff points in Bregman geometry,” presented at the SoCG: Symposium on Computational
Geometry, Budapest, Hungary, 2018, vol. 99, p. 35:1-35:13.'
ista: 'Edelsbrunner H, Virk Z, Wagner H. 2018. Smallest enclosing spheres and Chernoff
points in Bregman geometry. SoCG: Symposium on Computational Geometry, Leibniz
International Proceedings in Information, LIPIcs, vol. 99, 35:1-35:13.'
mla: Edelsbrunner, Herbert, et al. Smallest Enclosing Spheres and Chernoff Points
in Bregman Geometry. Vol. 99, Schloss Dagstuhl - Leibniz-Zentrum für Informatik,
2018, p. 35:1-35:13, doi:10.4230/LIPIcs.SoCG.2018.35.
short: H. Edelsbrunner, Z. Virk, H. Wagner, in:, Schloss Dagstuhl - Leibniz-Zentrum
für Informatik, 2018, p. 35:1-35:13.
conference:
end_date: 2018-06-14
location: Budapest, Hungary
name: 'SoCG: Symposium on Computational Geometry'
start_date: 2018-06-11
date_created: 2018-12-11T11:45:05Z
date_published: 2018-06-11T00:00:00Z
date_updated: 2021-01-12T06:53:48Z
day: '11'
ddc:
- '000'
department:
- _id: HeEd
doi: 10.4230/LIPIcs.SoCG.2018.35
file:
- access_level: open_access
checksum: 7509403803b3ac1aee94bbc2ad293d21
content_type: application/pdf
creator: dernst
date_created: 2018-12-17T16:31:31Z
date_updated: 2020-07-14T12:45:20Z
file_id: '5724'
file_name: 2018_LIPIcs_Edelsbrunner.pdf
file_size: 489080
relation: main_file
file_date_updated: 2020-07-14T12:45:20Z
fulldoi: https://doi.org/10.4230/LIPIcs.SoCG.2018.35
has_accepted_license: '1'
intvolume: ' 99'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
page: 35:1 - 35:13
project:
- _id: 2561EBF4-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: I02979-N35
name: Persistence and stability of geometric complexes
publication_status: published
publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik
publist_id: '7733'
quality_controlled: '1'
scopus_import: 1
status: public
title: Smallest enclosing spheres and Chernoff points in Bregman geometry
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 99
year: '2018'
...