---
_id: '1842'
abstract:
- lang: eng
text: We prove polynomial upper bounds of geometric Ramsey numbers of pathwidth-2
outerplanar triangulations in both convex and general cases. We also prove that
the geometric Ramsey numbers of the ladder graph on 2n vertices are bounded by
O(n3) and O(n10), in the convex and general case, respectively. We then apply
similar methods to prove an (Formula presented.) upper bound on the Ramsey number
of a path with n ordered vertices.
acknowledgement: Marek Krčál was supported by the ERC Advanced Grant No. 267165.
article_processing_charge: No
arxiv: 1
author:
- first_name: Josef
full_name: Cibulka, Josef
last_name: Cibulka
- first_name: Pu
full_name: Gao, Pu
last_name: Gao
- first_name: Marek
full_name: Krcál, Marek
id: 33E21118-F248-11E8-B48F-1D18A9856A87
last_name: Krcál
- first_name: Tomáš
full_name: Valla, Tomáš
last_name: Valla
- first_name: Pavel
full_name: Valtr, Pavel
last_name: Valtr
citation:
ama: Cibulka J, Gao P, Krcál M, Valla T, Valtr P. On the geometric ramsey number
of outerplanar graphs. Discrete & Computational Geometry. 2014;53(1):64-79.
doi:10.1007/s00454-014-9646-x
apa: Cibulka, J., Gao, P., Krcál, M., Valla, T., & Valtr, P. (2014). On the
geometric ramsey number of outerplanar graphs. Discrete & Computational
Geometry. Springer. https://doi.org/10.1007/s00454-014-9646-x
chicago: Cibulka, Josef, Pu Gao, Marek Krcál, Tomáš Valla, and Pavel Valtr. “On
the Geometric Ramsey Number of Outerplanar Graphs.” Discrete & Computational
Geometry. Springer, 2014. https://doi.org/10.1007/s00454-014-9646-x.
ieee: J. Cibulka, P. Gao, M. Krcál, T. Valla, and P. Valtr, “On the geometric ramsey
number of outerplanar graphs,” Discrete & Computational Geometry, vol.
53, no. 1. Springer, pp. 64–79, 2014.
ista: Cibulka J, Gao P, Krcál M, Valla T, Valtr P. 2014. On the geometric ramsey
number of outerplanar graphs. Discrete & Computational Geometry. 53(1), 64–79.
mla: Cibulka, Josef, et al. “On the Geometric Ramsey Number of Outerplanar Graphs.”
Discrete & Computational Geometry, vol. 53, no. 1, Springer, 2014,
pp. 64–79, doi:10.1007/s00454-014-9646-x.
short: J. Cibulka, P. Gao, M. Krcál, T. Valla, P. Valtr, Discrete & Computational
Geometry 53 (2014) 64–79.
date_created: 2018-12-11T11:54:18Z
date_published: 2014-11-14T00:00:00Z
date_updated: 2025-09-29T13:11:56Z
day: '14'
department:
- _id: UlWa
- _id: HeEd
doi: 10.1007/s00454-014-9646-x
external_id:
arxiv:
- '1310.7004'
isi:
- '000346774600005'
intvolume: ' 53'
isi: 1
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://arxiv.org/abs/1310.7004
month: '11'
oa: 1
oa_version: Submitted Version
page: 64 - 79
publication: Discrete & Computational Geometry
publication_status: published
publisher: Springer
publist_id: '5260'
scopus_import: '1'
status: public
title: On the geometric ramsey number of outerplanar graphs
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 53
year: '2014'
...
---
_id: '18423'
abstract:
- lang: eng
text: We present a method for supervised learning of shape descriptors for shape
retrieval applications. Many content-based shape retrieval approaches follow the
bag-of-features (BoF) paradigm commonly used in text and image retrieval by first
computing local shape descriptors, and then representing them in a ‘geometric
dictionary’ using vector quantization. A major drawback of such approaches is
that the dictionary is constructed in an unsupervised manner using clustering,
unaware of the last stage of the process (pooling of the local descriptors into
a BoF, and comparison of the latter using some metric). In this paper, we replace
the clustering with dictionary learning, where every atom acts as a feature, followed
by sparse coding and pooling to get the final BoF descriptor. Both the dictionary
and the sparse codes can be learned in the supervised regime via bi-level optimization
using a task-specific objective that promotes invariance desired in the specific
application. We show significant performance improvement on several standard shape
retrieval benchmarks.
article_processing_charge: No
author:
- first_name: Roee
full_name: Litman, Roee
last_name: Litman
- first_name: Alexander
full_name: Bronstein, Alexander
id: 58f3726e-7cba-11ef-ad8b-e6e8cb3904e6
last_name: Bronstein
orcid: 0000-0001-9699-8730
- first_name: Michael
full_name: Bronstein, Michael
last_name: Bronstein
- first_name: Umberto
full_name: Castellani, Umberto
last_name: Castellani
citation:
ama: Litman R, Bronstein AM, Bronstein M, Castellani U. Supervised learning of bag‐of‐features
shape descriptors using sparse coding. Computer Graphics Forum. 2014;33(5):127-136.
doi:10.1111/cgf.12438
apa: Litman, R., Bronstein, A. M., Bronstein, M., & Castellani, U. (2014). Supervised
learning of bag‐of‐features shape descriptors using sparse coding. Computer
Graphics Forum. Wiley. https://doi.org/10.1111/cgf.12438
chicago: Litman, Roee, Alex M. Bronstein, Michael Bronstein, and Umberto Castellani.
“Supervised Learning of Bag‐of‐features Shape Descriptors Using Sparse Coding.”
Computer Graphics Forum. Wiley, 2014. https://doi.org/10.1111/cgf.12438.
ieee: R. Litman, A. M. Bronstein, M. Bronstein, and U. Castellani, “Supervised learning
of bag‐of‐features shape descriptors using sparse coding,” Computer Graphics
Forum, vol. 33, no. 5. Wiley, pp. 127–136, 2014.
ista: Litman R, Bronstein AM, Bronstein M, Castellani U. 2014. Supervised learning
of bag‐of‐features shape descriptors using sparse coding. Computer Graphics Forum.
33(5), 127–136.
mla: Litman, Roee, et al. “Supervised Learning of Bag‐of‐features Shape Descriptors
Using Sparse Coding.” Computer Graphics Forum, vol. 33, no. 5, Wiley, 2014,
pp. 127–36, doi:10.1111/cgf.12438.
short: R. Litman, A.M. Bronstein, M. Bronstein, U. Castellani, Computer Graphics
Forum 33 (2014) 127–136.
date_created: 2024-10-15T11:20:55Z
date_published: 2014-08-01T00:00:00Z
date_updated: 2024-12-19T10:20:12Z
day: '01'
doi: 10.1111/cgf.12438
extern: '1'
intvolume: ' 33'
issue: '5'
language:
- iso: eng
month: '08'
oa_version: None
page: 127-136
publication: Computer Graphics Forum
publication_identifier:
eissn:
- 1467-8659
issn:
- 0167-7055
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: Supervised learning of bag‐of‐features shape descriptors using sparse coding
type: journal_article
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 33
year: '2014'
...
---
_id: '1844'
abstract:
- lang: eng
text: 'Local protein interactions ("molecular context" effects) dictate
amino acid replacements and can be described in terms of site-specific, energetic
preferences for any different amino acid. It has been recently debated whether
these preferences remain approximately constant during evolution or whether, due
to coevolution of sites, they change strongly. Such research highlights an unresolved
and fundamental issue with far-reaching implications for phylogenetic analysis
and molecular evolution modeling. Here, we take advantage of the recent availability
of phenotypically supported laboratory resurrections of Precambrian thioredoxins
and β-lactamases to experimentally address the change of site-specific amino acid
preferences over long geological timescales. Extensive mutational analyses support
the notion that evolutionary adjustment to a new amino acid may occur, but to
a large extent this is insufficient to erase the primitive preference for amino
acid replacements. Generally, site-specific amino acid preferences appear to remain
conserved throughout evolutionary history despite local sequence divergence. We
show such preference conservation to be readily understandable in molecular terms
and we provide crystallographic evidence for an intriguing structural-switch mechanism:
Energetic preference for an ancestral amino acid in a modern protein can be linked
to reorganization upon mutation to the ancestral local structure around the mutated
site. Finally, we point out that site-specific preference conservation naturally
leads to one plausible evolutionary explanation for the existence of intragenic
global suppressor mutations.'
article_processing_charge: No
author:
- first_name: Valeria
full_name: Risso, Valeria
last_name: Risso
- first_name: Fadia
full_name: Manssour Triedo, Fadia
last_name: Manssour Triedo
- first_name: Asuncion
full_name: Delgado Delgado, Asuncion
last_name: Delgado Delgado
- first_name: Rocio
full_name: Arco, Rocio
last_name: Arco
- first_name: Alicia
full_name: Barroso Deljesús, Alicia
last_name: Barroso Deljesús
- first_name: Álvaro
full_name: Inglés Prieto, Álvaro
id: 2A9DB292-F248-11E8-B48F-1D18A9856A87
last_name: Inglés Prieto
orcid: 0000-0002-5409-8571
- first_name: Raquel
full_name: Godoy Ruiz, Raquel
last_name: Godoy Ruiz
- first_name: Josè
full_name: Gavira, Josè
last_name: Gavira
- first_name: Eric
full_name: Gaucher, Eric
last_name: Gaucher
- first_name: Beatriz
full_name: Ibarra Molero, Beatriz
last_name: Ibarra Molero
- first_name: Jose
full_name: Sánchez Ruiz, Jose
last_name: Sánchez Ruiz
citation:
ama: Risso V, Manssour Triedo F, Delgado Delgado A, et al. Mutational studies on
resurrected ancestral proteins reveal conservation of site-specific amino acid
preferences throughout evolutionary history. Molecular Biology and Evolution.
2014;32(2):440-455. doi:10.1093/molbev/msu312
apa: Risso, V., Manssour Triedo, F., Delgado Delgado, A., Arco, R., Barroso Deljesús,
A., Inglés Prieto, Á., … Sánchez Ruiz, J. (2014). Mutational studies on resurrected
ancestral proteins reveal conservation of site-specific amino acid preferences
throughout evolutionary history. Molecular Biology and Evolution. Oxford
University Press. https://doi.org/10.1093/molbev/msu312
chicago: Risso, Valeria, Fadia Manssour Triedo, Asuncion Delgado Delgado, Rocio
Arco, Alicia Barroso Deljesús, Álvaro Inglés Prieto, Raquel Godoy Ruiz, et al.
“Mutational Studies on Resurrected Ancestral Proteins Reveal Conservation of Site-Specific
Amino Acid Preferences throughout Evolutionary History.” Molecular Biology
and Evolution. Oxford University Press, 2014. https://doi.org/10.1093/molbev/msu312.
ieee: V. Risso et al., “Mutational studies on resurrected ancestral proteins
reveal conservation of site-specific amino acid preferences throughout evolutionary
history,” Molecular Biology and Evolution, vol. 32, no. 2. Oxford University
Press, pp. 440–455, 2014.
ista: Risso V, Manssour Triedo F, Delgado Delgado A, Arco R, Barroso Deljesús A,
Inglés Prieto Á, Godoy Ruiz R, Gavira J, Gaucher E, Ibarra Molero B, Sánchez Ruiz
J. 2014. Mutational studies on resurrected ancestral proteins reveal conservation
of site-specific amino acid preferences throughout evolutionary history. Molecular
Biology and Evolution. 32(2), 440–455.
mla: Risso, Valeria, et al. “Mutational Studies on Resurrected Ancestral Proteins
Reveal Conservation of Site-Specific Amino Acid Preferences throughout Evolutionary
History.” Molecular Biology and Evolution, vol. 32, no. 2, Oxford University
Press, 2014, pp. 440–55, doi:10.1093/molbev/msu312.
short: V. Risso, F. Manssour Triedo, A. Delgado Delgado, R. Arco, A. Barroso Deljesús,
Á. Inglés Prieto, R. Godoy Ruiz, J. Gavira, E. Gaucher, B. Ibarra Molero, J. Sánchez
Ruiz, Molecular Biology and Evolution 32 (2014) 440–455.
date_created: 2018-12-11T11:54:19Z
date_published: 2014-11-12T00:00:00Z
date_updated: 2025-09-29T13:11:19Z
day: '12'
ddc:
- '571'
department:
- _id: HaJa
doi: 10.1093/molbev/msu312
external_id:
isi:
- '000350050700012'
file:
- access_level: open_access
checksum: 06215318e66be8f3e0c33abb07e9d3da
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:16:56Z
date_updated: 2020-07-14T12:45:19Z
file_id: '5247'
file_name: IST-2016-430-v1+1_Mol_Biol_Evol-2015-Risso-440-55.pdf
file_size: 1545246
relation: main_file
file_date_updated: 2020-07-14T12:45:19Z
has_accepted_license: '1'
intvolume: ' 32'
isi: 1
issue: '2'
language:
- iso: eng
month: '11'
oa: 1
oa_version: Published Version
page: 440 - 455
publication: Molecular Biology and Evolution
publication_status: published
publisher: Oxford University Press
publist_id: '5257'
pubrep_id: '430'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Mutational studies on resurrected ancestral proteins reveal conservation of
site-specific amino acid preferences throughout evolutionary history
tmp:
image: /images/cc_by_nc.png
legal_code_url: https://creativecommons.org/licenses/by-nc/4.0/legalcode
name: Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
short: CC BY-NC (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 32
year: '2014'
...
---
_id: '1852'
abstract:
- lang: eng
text: To control morphogenesis, molecular regulatory networks have to interfere
with the mechanical properties of the individual cells of developing organs and
tissues, but how this is achieved is not well known. We study this issue here
in the shoot meristem of higher plants, a group of undifferentiated cells where
complex changes in growth rates and directions lead to the continuous formation
of new organs [1, 2]. Here, we show that the plant hormone auxin plays an important
role in this process via a dual, local effect on the extracellular matrix, the
cell wall, which determines cell shape. Our study reveals that auxin not only
causes a limited reduction in wall stiffness but also directly interferes with
wall anisotropy via the regulation of cortical microtubule dynamics. We further
show that to induce growth isotropy and organ outgrowth, auxin somehow interferes
with the cortical microtubule-ordering activity of a network of proteins, including
AUXIN BINDING PROTEIN 1 and KATANIN 1. Numerical simulations further indicate
that the induced isotropy is sufficient to amplify the effects of the relatively
minor changes in wall stiffness to promote organogenesis and the establishment
of new growth axes in a robust manner.
acknowledgement: 'This work was funded by grants from EraSysBio+ (iSAM) and ERC (Morphodynamics). '
article_processing_charge: No
author:
- first_name: Massimiliano
full_name: Sassi, Massimiliano
last_name: Sassi
- first_name: Olivier
full_name: Ali, Olivier
last_name: Ali
- first_name: Frédéric
full_name: Boudon, Frédéric
last_name: Boudon
- first_name: Gladys
full_name: Cloarec, Gladys
last_name: Cloarec
- first_name: Ursula
full_name: Abad, Ursula
last_name: Abad
- first_name: Coralie
full_name: Cellier, Coralie
last_name: Cellier
- first_name: Xu
full_name: Chen, Xu
id: 4E5ADCAA-F248-11E8-B48F-1D18A9856A87
last_name: Chen
- first_name: Benjamin
full_name: Gilles, Benjamin
last_name: Gilles
- first_name: Pascale
full_name: Milani, Pascale
last_name: Milani
- first_name: Jirí
full_name: Friml, Jirí
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
- first_name: Teva
full_name: Vernoux, Teva
last_name: Vernoux
- first_name: Christophe
full_name: Godin, Christophe
last_name: Godin
- first_name: Olivier
full_name: Hamant, Olivier
last_name: Hamant
- first_name: Jan
full_name: Traas, Jan
last_name: Traas
citation:
ama: Sassi M, Ali O, Boudon F, et al. An auxin-mediated shift toward growth isotropy
promotes organ formation at the shoot meristem in Arabidopsis. Current Biology.
2014;24(19):2335-2342. doi:10.1016/j.cub.2014.08.036
apa: Sassi, M., Ali, O., Boudon, F., Cloarec, G., Abad, U., Cellier, C., … Traas,
J. (2014). An auxin-mediated shift toward growth isotropy promotes organ formation
at the shoot meristem in Arabidopsis. Current Biology. Cell Press. https://doi.org/10.1016/j.cub.2014.08.036
chicago: Sassi, Massimiliano, Olivier Ali, Frédéric Boudon, Gladys Cloarec, Ursula
Abad, Coralie Cellier, Xu Chen, et al. “An Auxin-Mediated Shift toward Growth
Isotropy Promotes Organ Formation at the Shoot Meristem in Arabidopsis.” Current
Biology. Cell Press, 2014. https://doi.org/10.1016/j.cub.2014.08.036.
ieee: M. Sassi et al., “An auxin-mediated shift toward growth isotropy promotes
organ formation at the shoot meristem in Arabidopsis,” Current Biology,
vol. 24, no. 19. Cell Press, pp. 2335–2342, 2014.
ista: Sassi M, Ali O, Boudon F, Cloarec G, Abad U, Cellier C, Chen X, Gilles B,
Milani P, Friml J, Vernoux T, Godin C, Hamant O, Traas J. 2014. An auxin-mediated
shift toward growth isotropy promotes organ formation at the shoot meristem in
Arabidopsis. Current Biology. 24(19), 2335–2342.
mla: Sassi, Massimiliano, et al. “An Auxin-Mediated Shift toward Growth Isotropy
Promotes Organ Formation at the Shoot Meristem in Arabidopsis.” Current Biology,
vol. 24, no. 19, Cell Press, 2014, pp. 2335–42, doi:10.1016/j.cub.2014.08.036.
short: M. Sassi, O. Ali, F. Boudon, G. Cloarec, U. Abad, C. Cellier, X. Chen, B.
Gilles, P. Milani, J. Friml, T. Vernoux, C. Godin, O. Hamant, J. Traas, Current
Biology 24 (2014) 2335–2342.
date_created: 2018-12-11T11:54:22Z
date_published: 2014-10-06T00:00:00Z
date_updated: 2025-09-29T13:10:45Z
day: '06'
department:
- _id: JiFr
doi: 10.1016/j.cub.2014.08.036
external_id:
isi:
- '000342747600031'
intvolume: ' 24'
isi: 1
issue: '19'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://hal.archives-ouvertes.fr/hal-01074821
month: '10'
oa: 1
oa_version: Submitted Version
page: 2335 - 2342
publication: Current Biology
publication_status: published
publisher: Cell Press
publist_id: '5248'
quality_controlled: '1'
scopus_import: '1'
status: public
title: An auxin-mediated shift toward growth isotropy promotes organ formation at
the shoot meristem in Arabidopsis
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 24
year: '2014'
...
---
_id: '1853'
abstract:
- lang: eng
text: Wireless sensor networks (WSNs) composed of low-power, low-cost sensor nodes
are expected to form the backbone of future intelligent networks for a broad range
of civil, industrial and military applications. These sensor nodes are often deployed
through random spreading, and function in dynamic environments. Many applications
of WSNs such as pollution tracking, forest fire detection, and military surveillance
require knowledge of the location of constituent nodes. But the use of technologies
such as GPS on all nodes is prohibitive due to power and cost constraints. So,
the sensor nodes need to autonomously determine their locations. Most localization
techniques use anchor nodes with known locations to determine the position of
remaining nodes. Localization techniques have two conflicting requirements. On
one hand, an ideal localization technique should be computationally simple and
on the other hand, it must be resistant to attacks that compromise anchor nodes.
In this paper, we propose a computationally light-weight game theoretic secure
localization technique and demonstrate its effectiveness in comparison to existing
techniques.
author:
- first_name: Susmit
full_name: Jha, Susmit
last_name: Jha
- first_name: Stavros
full_name: Tripakis, Stavros
last_name: Tripakis
- first_name: Sanjit
full_name: Seshia, Sanjit
last_name: Seshia
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
citation:
ama: 'Jha S, Tripakis S, Seshia S, Chatterjee K. Game theoretic secure localization
in wireless sensor networks. In: IEEE; 2014:85-90. doi:10.1109/IOT.2014.7030120'
apa: 'Jha, S., Tripakis, S., Seshia, S., & Chatterjee, K. (2014). Game theoretic
secure localization in wireless sensor networks (pp. 85–90). Presented at the
IOT: Internet of Things, Cambridge, USA: IEEE. https://doi.org/10.1109/IOT.2014.7030120'
chicago: Jha, Susmit, Stavros Tripakis, Sanjit Seshia, and Krishnendu Chatterjee.
“Game Theoretic Secure Localization in Wireless Sensor Networks,” 85–90. IEEE,
2014. https://doi.org/10.1109/IOT.2014.7030120.
ieee: 'S. Jha, S. Tripakis, S. Seshia, and K. Chatterjee, “Game theoretic secure
localization in wireless sensor networks,” presented at the IOT: Internet of Things,
Cambridge, USA, 2014, pp. 85–90.'
ista: 'Jha S, Tripakis S, Seshia S, Chatterjee K. 2014. Game theoretic secure localization
in wireless sensor networks. IOT: Internet of Things, 85–90.'
mla: Jha, Susmit, et al. Game Theoretic Secure Localization in Wireless Sensor
Networks. IEEE, 2014, pp. 85–90, doi:10.1109/IOT.2014.7030120.
short: S. Jha, S. Tripakis, S. Seshia, K. Chatterjee, in:, IEEE, 2014, pp. 85–90.
conference:
end_date: 2014-10-08
location: Cambridge, USA
name: 'IOT: Internet of Things'
start_date: 2014-10-06
date_created: 2018-12-11T11:54:22Z
date_published: 2014-02-03T00:00:00Z
date_updated: 2024-10-21T06:02:48Z
day: '03'
department:
- _id: KrCh
doi: 10.1109/IOT.2014.7030120
language:
- iso: eng
month: '02'
oa_version: None
page: 85 - 90
publication_status: published
publisher: IEEE
publist_id: '5247'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Game theoretic secure localization in wireless sensor networks
type: conference
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
year: '2014'
...
---
_id: '1854'
abstract:
- lang: eng
text: In this paper, we present a method for non-rigid, partial shape matching in
vector graphics. Given a user-specified query region in a 2D shape, similar regions
are found, even if they are non-linearly distorted. Furthermore, a non-linear
mapping is established between the query regions and these matches, which allows
the automatic transfer of editing operations such as texturing. This is achieved
by a two-step approach. First, pointwise correspondences between the query region
and the whole shape are established. The transformation parameters of these correspondences
are registered in an appropriate transformation space. For transformations between
similar regions, these parameters form surfaces in transformation space, which
are extracted in the second step of our method. The extracted regions may be related
to the query region by a non-rigid transform, enabling non-rigid shape matching.
In this paper, we present a method for non-rigid, partial shape matching in vector
graphics. Given a user-specified query region in a 2D shape, similar regions are
found, even if they are non-linearly distorted. Furthermore, a non-linear mapping
is established between the query regions and these matches, which allows the automatic
transfer of editing operations such as texturing. This is achieved by a two-step
approach. First, pointwise correspondences between the query region and the whole
shape are established. The transformation parameters of these correspondences
are registered in an appropriate transformation space. For transformations between
similar regions, these parameters form surfaces in transformation space, which
are extracted in the second step of our method. The extracted regions may be related
to the query region by a non-rigid transform, enabling non-rigid shape matching.
article_processing_charge: No
author:
- first_name: Paul
full_name: Guerrero, Paul
last_name: Guerrero
- first_name: Thomas
full_name: Auzinger, Thomas
id: 4718F954-F248-11E8-B48F-1D18A9856A87
last_name: Auzinger
orcid: 0000-0002-1546-3265
- first_name: Michael
full_name: Wimmer, Michael
last_name: Wimmer
- first_name: Stefan
full_name: Jeschke, Stefan
id: 44D6411A-F248-11E8-B48F-1D18A9856A87
last_name: Jeschke
citation:
ama: Guerrero P, Auzinger T, Wimmer M, Jeschke S. Partial shape matching using transformation
parameter similarity. Computer Graphics Forum. 2014;34(1):239-252. doi:10.1111/cgf.12509
apa: Guerrero, P., Auzinger, T., Wimmer, M., & Jeschke, S. (2014). Partial shape
matching using transformation parameter similarity. Computer Graphics Forum.
Wiley. https://doi.org/10.1111/cgf.12509
chicago: Guerrero, Paul, Thomas Auzinger, Michael Wimmer, and Stefan Jeschke. “Partial
Shape Matching Using Transformation Parameter Similarity.” Computer Graphics
Forum. Wiley, 2014. https://doi.org/10.1111/cgf.12509.
ieee: P. Guerrero, T. Auzinger, M. Wimmer, and S. Jeschke, “Partial shape matching
using transformation parameter similarity,” Computer Graphics Forum, vol.
34, no. 1. Wiley, pp. 239–252, 2014.
ista: Guerrero P, Auzinger T, Wimmer M, Jeschke S. 2014. Partial shape matching
using transformation parameter similarity. Computer Graphics Forum. 34(1), 239–252.
mla: Guerrero, Paul, et al. “Partial Shape Matching Using Transformation Parameter
Similarity.” Computer Graphics Forum, vol. 34, no. 1, Wiley, 2014, pp.
239–52, doi:10.1111/cgf.12509.
short: P. Guerrero, T. Auzinger, M. Wimmer, S. Jeschke, Computer Graphics Forum
34 (2014) 239–252.
date_created: 2018-12-11T11:54:22Z
date_published: 2014-11-05T00:00:00Z
date_updated: 2025-09-23T09:47:49Z
day: '05'
ddc:
- '000'
department:
- _id: ChWo
doi: 10.1111/cgf.12509
external_id:
isi:
- '000350145600019'
file:
- access_level: open_access
checksum: 91946bfc509c77f5fd3151a3ff2b2c8f
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:15:58Z
date_updated: 2020-07-14T12:45:19Z
file_id: '5182'
file_name: IST-2016-574-v1+1_Guerrero-2014-TPS-paper.pdf
file_size: 24817484
relation: main_file
file_date_updated: 2020-07-14T12:45:19Z
has_accepted_license: '1'
intvolume: ' 34'
isi: 1
issue: '1'
language:
- iso: eng
month: '11'
oa: 1
oa_version: Submitted Version
page: 239 - 252
publication: Computer Graphics Forum
publication_status: published
publisher: Wiley
publist_id: '5246'
pubrep_id: '574'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Partial shape matching using transformation parameter similarity
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 34
year: '2014'
...
---
_id: '1862'
abstract:
- lang: eng
text: The prominent and evolutionarily ancient role of the plant hormone auxin is
the regulation of cell expansion. Cell expansion requires ordered arrangement
of the cytoskeleton but molecular mechanisms underlying its regulation by signalling
molecules including auxin are unknown. Here we show in the model plant Arabidopsis
thaliana that in elongating cells exogenous application of auxin or redistribution
of endogenous auxin induces very rapid microtubule re-orientation from transverse
to longitudinal, coherent with the inhibition of cell expansion. This fast auxin
effect requires auxin binding protein 1 (ABP1) and involves a contribution of
downstream signalling components such as ROP6 GTPase, ROP-interactive protein
RIC1 and the microtubule-severing protein katanin. These components are required
for rapid auxin-and ABP1-mediated re-orientation of microtubules to regulate cell
elongation in roots and dark-grown hypocotyls as well as asymmetric growth during
gravitropic responses.
acknowledgement: We thank R. Dixit for performing complementary experiments, D. W.
Ehrhardt and T. Hashimoto for providing the seeds of TUB6–RFP and EB1b–GFP respectively,
E. Zazimalova, J. Petrasek and M. Fendrych for discussing the manuscript and J.
Leung for text optimization. This work was supported by the European Research Council
(project ERC-2011-StG-20101109-PSDP, to J.F.), ANR blanc AuxiWall project (ANR-11-BSV5-0007,
to C.P.-R. and L.G.) and the Agency for Innovation by Science and Technology (IWT)
(to H.R.). This work benefited from the facilities and expertise of the Imagif Cell
Biology platform (http://www.imagif.cnrs.fr), which is supported by the Conseil
Général de l’Essonne.
article_processing_charge: No
article_type: original
author:
- first_name: Xu
full_name: Chen, Xu
id: 4E5ADCAA-F248-11E8-B48F-1D18A9856A87
last_name: Chen
- first_name: Laurie
full_name: Grandont, Laurie
last_name: Grandont
- first_name: Hongjiang
full_name: Li, Hongjiang
id: 33CA54A6-F248-11E8-B48F-1D18A9856A87
last_name: Li
orcid: 0000-0001-5039-9660
- first_name: Robert
full_name: Hauschild, Robert
id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87
last_name: Hauschild
orcid: 0000-0001-9843-3522
- first_name: Sébastien
full_name: Paque, Sébastien
last_name: Paque
- first_name: Anas
full_name: Abuzeineh, Anas
last_name: Abuzeineh
- first_name: Hana
full_name: Rakusova, Hana
id: 4CAAA450-78D2-11EA-8E57-B40A396E08BA
last_name: Rakusova
- first_name: Eva
full_name: Benková, Eva
id: 38F4F166-F248-11E8-B48F-1D18A9856A87
last_name: Benková
orcid: 0000-0002-8510-9739
- first_name: Catherine
full_name: Perrot Rechenmann, Catherine
last_name: Perrot Rechenmann
- first_name: Jirí
full_name: Friml, Jirí
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
citation:
ama: Chen X, Grandont L, Li H, et al. Inhibition of cell expansion by rapid ABP1-mediated
auxin effect on microtubules. Nature. 2014;516(729):90-93. doi:10.1038/nature13889
apa: Chen, X., Grandont, L., Li, H., Hauschild, R., Paque, S., Abuzeineh, A., …
Friml, J. (2014). Inhibition of cell expansion by rapid ABP1-mediated auxin effect
on microtubules. Nature. Nature Publishing Group. https://doi.org/10.1038/nature13889
chicago: Chen, Xu, Laurie Grandont, Hongjiang Li, Robert Hauschild, Sébastien Paque,
Anas Abuzeineh, Hana Rakusova, Eva Benková, Catherine Perrot Rechenmann, and Jiří
Friml. “Inhibition of Cell Expansion by Rapid ABP1-Mediated Auxin Effect on Microtubules.”
Nature. Nature Publishing Group, 2014. https://doi.org/10.1038/nature13889.
ieee: X. Chen et al., “Inhibition of cell expansion by rapid ABP1-mediated
auxin effect on microtubules,” Nature, vol. 516, no. 729. Nature Publishing
Group, pp. 90–93, 2014.
ista: Chen X, Grandont L, Li H, Hauschild R, Paque S, Abuzeineh A, Rakusova H, Benková
E, Perrot Rechenmann C, Friml J. 2014. Inhibition of cell expansion by rapid ABP1-mediated
auxin effect on microtubules. Nature. 516(729), 90–93.
mla: Chen, Xu, et al. “Inhibition of Cell Expansion by Rapid ABP1-Mediated Auxin
Effect on Microtubules.” Nature, vol. 516, no. 729, Nature Publishing Group,
2014, pp. 90–93, doi:10.1038/nature13889.
short: X. Chen, L. Grandont, H. Li, R. Hauschild, S. Paque, A. Abuzeineh, H. Rakusova,
E. Benková, C. Perrot Rechenmann, J. Friml, Nature 516 (2014) 90–93.
corr_author: '1'
date_created: 2018-12-11T11:54:25Z
date_published: 2014-12-04T00:00:00Z
date_updated: 2025-09-29T13:10:05Z
day: '04'
department:
- _id: JiFr
- _id: Bio
- _id: EvBe
doi: 10.1038/nature13889
ec_funded: 1
external_id:
isi:
- '000346310800045'
pmid:
- '25409144'
intvolume: ' 516'
isi: 1
issue: '729'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4257754/
month: '12'
oa: 1
oa_version: Submitted Version
page: 90 - 93
pmid: 1
project:
- _id: 25716A02-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '282300'
name: Polarity and subcellular dynamics in plants
publication: Nature
publication_identifier:
eissn:
- 1476-4687
issn:
- 0028-0836
publication_status: published
publisher: Nature Publishing Group
publist_id: '5237'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Inhibition of cell expansion by rapid ABP1-mediated auxin effect on microtubules
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 516
year: '2014'
...
---
_id: '1869'
abstract:
- lang: eng
text: Boolean controllers for systems with complex datapaths are often very difficult
to implement correctly, in particular when concurrency is involved. Yet, in many
instances it is easy to formally specify correctness. For example, the specification
for the controller of a pipelined processor only has to state that the pipelined
processor gives the same results as a non-pipelined reference design. This makes
such controllers a good target for automated synthesis. However, an efficient
abstraction for the complex datapath elements is needed, as a bit-precise description
is often infeasible. We present Suraq, the first controller synthesis tool which
uses uninterpreted functions for the abstraction. Quantified firstorder formulas
(with specific quantifier structure) serve as the specification language from
which Suraq synthesizes Boolean controllers. Suraq transforms the specification
into an unsatisfiable SMT formula, and uses Craig interpolation to compute its
results. Using Suraq, we were able to synthesize a controller (consisting of two
Boolean signals) for a five-stage pipelined DLX processor in roughly one hour
and 15 minutes.
acknowledgement: The work presented in this paper was supported in part by the European
Research Council (ERC) under grant agreement QUAINT (I774-N23)
alternative_title:
- LNCS
author:
- first_name: Georg
full_name: Hofferek, Georg
last_name: Hofferek
- first_name: Ashutosh
full_name: Gupta, Ashutosh
id: 335E5684-F248-11E8-B48F-1D18A9856A87
last_name: Gupta
citation:
ama: 'Hofferek G, Gupta A. Suraq - a controller synthesis tool using uninterpreted
functions. In: Yahav E, ed. HVC 2014. Vol 8855. Springer; 2014:68-74. doi:10.1007/978-3-319-13338-6_6'
apa: 'Hofferek, G., & Gupta, A. (2014). Suraq - a controller synthesis tool
using uninterpreted functions. In E. Yahav (Ed.), HVC 2014 (Vol. 8855,
pp. 68–74). Haifa, Israel: Springer. https://doi.org/10.1007/978-3-319-13338-6_6'
chicago: Hofferek, Georg, and Ashutosh Gupta. “Suraq - a Controller Synthesis Tool
Using Uninterpreted Functions.” In HVC 2014, edited by Eran Yahav, 8855:68–74.
Springer, 2014. https://doi.org/10.1007/978-3-319-13338-6_6.
ieee: G. Hofferek and A. Gupta, “Suraq - a controller synthesis tool using uninterpreted
functions,” in HVC 2014, Haifa, Israel, 2014, vol. 8855, pp. 68–74.
ista: 'Hofferek G, Gupta A. 2014. Suraq - a controller synthesis tool using uninterpreted
functions. HVC 2014. HVC: Haifa Verification Conference, LNCS, vol. 8855, 68–74.'
mla: Hofferek, Georg, and Ashutosh Gupta. “Suraq - a Controller Synthesis Tool Using
Uninterpreted Functions.” HVC 2014, edited by Eran Yahav, vol. 8855, Springer,
2014, pp. 68–74, doi:10.1007/978-3-319-13338-6_6.
short: G. Hofferek, A. Gupta, in:, E. Yahav (Ed.), HVC 2014, Springer, 2014, pp.
68–74.
conference:
end_date: 2014-11-20
location: Haifa, Israel
name: 'HVC: Haifa Verification Conference'
start_date: 2014-11-18
date_created: 2018-12-11T11:54:27Z
date_published: 2014-01-01T00:00:00Z
date_updated: 2024-10-21T06:02:48Z
day: '01'
department:
- _id: ToHe
doi: 10.1007/978-3-319-13338-6_6
ec_funded: 1
editor:
- first_name: Eran
full_name: Yahav, Eran
last_name: Yahav
intvolume: ' 8855'
language:
- iso: eng
month: '01'
oa_version: None
page: 68 - 74
project:
- _id: 25EE3708-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '267989'
name: Quantitative Reactive Modeling
- _id: 25863FF4-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: S11407
name: Game Theory
publication: HVC 2014
publication_status: published
publisher: Springer
publist_id: '5228'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Suraq - a controller synthesis tool using uninterpreted functions
type: conference
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
volume: 8855
year: '2014'
...
---
_id: '1870'
abstract:
- lang: eng
text: We investigate the problem of checking if a finite-state transducer is robust
to uncertainty in its input. Our notion of robustness is based on the analytic
notion of Lipschitz continuity - a transducer is K-(Lipschitz) robust if the perturbation
in its output is at most K times the perturbation in its input. We quantify input
and output perturbation using similarity functions. We show that K-robustness
is undecidable even for deterministic transducers. We identify a class of functional
transducers, which admits a polynomial time automata-theoretic decision procedure
for K-robustness. This class includes Mealy machines and functional letter-to-letter
transducers. We also study K-robustness of nondeterministic transducers. Since
a nondeterministic transducer generates a set of output words for each input word,
we quantify output perturbation using setsimilarity functions. We show that K-robustness
of nondeterministic transducers is undecidable, even for letter-to-letter transducers.
We identify a class of set-similarity functions which admit decidable K-robustness
of letter-to-letter transducers.
alternative_title:
- LIPIcs
author:
- first_name: Thomas A
full_name: Henzinger, Thomas A
id: 40876CD8-F248-11E8-B48F-1D18A9856A87
last_name: Henzinger
orcid: 0000−0002−2985−7724
- first_name: Jan
full_name: Otop, Jan
id: 2FC5DA74-F248-11E8-B48F-1D18A9856A87
last_name: Otop
- first_name: Roopsha
full_name: Samanta, Roopsha
id: 3D2AAC08-F248-11E8-B48F-1D18A9856A87
last_name: Samanta
citation:
ama: 'Henzinger TA, Otop J, Samanta R. Lipschitz robustness of finite-state transducers.
In: Leibniz International Proceedings in Informatics, LIPIcs. Vol 29. Schloss
Dagstuhl - Leibniz-Zentrum für Informatik; 2014:431-443. doi:10.4230/LIPIcs.FSTTCS.2014.431'
apa: 'Henzinger, T. A., Otop, J., & Samanta, R. (2014). Lipschitz robustness
of finite-state transducers. In Leibniz International Proceedings in Informatics,
LIPIcs (Vol. 29, pp. 431–443). Delhi, India: Schloss Dagstuhl - Leibniz-Zentrum
für Informatik. https://doi.org/10.4230/LIPIcs.FSTTCS.2014.431'
chicago: Henzinger, Thomas A, Jan Otop, and Roopsha Samanta. “Lipschitz Robustness
of Finite-State Transducers.” In Leibniz International Proceedings in Informatics,
LIPIcs, 29:431–43. Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2014.
https://doi.org/10.4230/LIPIcs.FSTTCS.2014.431.
ieee: T. A. Henzinger, J. Otop, and R. Samanta, “Lipschitz robustness of finite-state
transducers,” in Leibniz International Proceedings in Informatics, LIPIcs,
Delhi, India, 2014, vol. 29, pp. 431–443.
ista: 'Henzinger TA, Otop J, Samanta R. 2014. Lipschitz robustness of finite-state
transducers. Leibniz International Proceedings in Informatics, LIPIcs. FSTTCS:
Foundations of Software Technology and Theoretical Computer Science, LIPIcs, vol.
29, 431–443.'
mla: Henzinger, Thomas A., et al. “Lipschitz Robustness of Finite-State Transducers.”
Leibniz International Proceedings in Informatics, LIPIcs, vol. 29, Schloss
Dagstuhl - Leibniz-Zentrum für Informatik, 2014, pp. 431–43, doi:10.4230/LIPIcs.FSTTCS.2014.431.
short: T.A. Henzinger, J. Otop, R. Samanta, in:, Leibniz International Proceedings
in Informatics, LIPIcs, Schloss Dagstuhl - Leibniz-Zentrum für Informatik, 2014,
pp. 431–443.
conference:
end_date: 2014-12-17
location: Delhi, India
name: 'FSTTCS: Foundations of Software Technology and Theoretical Computer Science'
start_date: 2014-12-15
corr_author: '1'
date_created: 2018-12-11T11:54:27Z
date_published: 2014-12-01T00:00:00Z
date_updated: 2024-10-21T06:02:49Z
day: '01'
ddc:
- '004'
department:
- _id: ToHe
doi: 10.4230/LIPIcs.FSTTCS.2014.431
file:
- access_level: open_access
checksum: 7b1aff1710a8bffb7080ec07f62d9a17
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:09:11Z
date_updated: 2020-07-14T12:45:19Z
file_id: '4734'
file_name: IST-2017-804-v1+1_37.pdf
file_size: 562151
relation: main_file
file_date_updated: 2020-07-14T12:45:19Z
has_accepted_license: '1'
intvolume: ' 29'
language:
- iso: eng
month: '12'
oa: 1
oa_version: Published Version
page: 431 - 443
publication: Leibniz International Proceedings in Informatics, LIPIcs
publication_status: published
publisher: Schloss Dagstuhl - Leibniz-Zentrum für Informatik
publist_id: '5227'
pubrep_id: '804'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Lipschitz robustness of finite-state transducers
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: 4435EBFC-F248-11E8-B48F-1D18A9856A87
volume: 29
year: '2014'
...
---
_id: '1872'
abstract:
- lang: eng
text: Extensionality axioms are common when reasoning about data collections, such
as arrays and functions in program analysis, or sets in mathematics. An extensionality
axiom asserts that two collections are equal if they consist of the same elements
at the same indices. Using extensionality is often required to show that two collections
are equal. A typical example is the set theory theorem (∀x)(∀y)x∪y = y ∪x. Interestingly,
while humans have no problem with proving such set identities using extensionality,
they are very hard for superposition theorem provers because of the calculi they
use. In this paper we show how addition of a new inference rule, called extensionality
resolution, allows first-order theorem provers to easily solve problems no modern
first-order theorem prover can solve. We illustrate this by running the VAMPIRE
theorem prover with extensionality resolution on a number of set theory and array
problems. Extensionality resolution helps VAMPIRE to solve problems from the TPTP
library of first-order problems that were never solved before by any prover.
acknowledgement: This research was supported in part by the Austrian National Research
Network RiSE (S11410-N23).
alternative_title:
- LNCS
author:
- first_name: Ashutosh
full_name: Gupta, Ashutosh
id: 335E5684-F248-11E8-B48F-1D18A9856A87
last_name: Gupta
- first_name: Laura
full_name: Kovács, Laura
last_name: Kovács
- first_name: Bernhard
full_name: Kragl, Bernhard
id: 320FC952-F248-11E8-B48F-1D18A9856A87
last_name: Kragl
orcid: 0000-0001-7745-9117
- first_name: Andrei
full_name: Voronkov, Andrei
last_name: Voronkov
citation:
ama: 'Gupta A, Kovács L, Kragl B, Voronkov A. Extensional crisis and proving identity.
In: Cassez F, Raskin J-F, eds. ATVA 2014. Vol 8837. Springer; 2014:185-200.
doi:10.1007/978-3-319-11936-6_14'
apa: 'Gupta, A., Kovács, L., Kragl, B., & Voronkov, A. (2014). Extensional crisis
and proving identity. In F. Cassez & J.-F. Raskin (Eds.), ATVA 2014
(Vol. 8837, pp. 185–200). Sydney, Australia: Springer. https://doi.org/10.1007/978-3-319-11936-6_14'
chicago: Gupta, Ashutosh, Laura Kovács, Bernhard Kragl, and Andrei Voronkov. “Extensional
Crisis and Proving Identity.” In ATVA 2014, edited by Franck Cassez and
Jean-François Raskin, 8837:185–200. Springer, 2014. https://doi.org/10.1007/978-3-319-11936-6_14.
ieee: A. Gupta, L. Kovács, B. Kragl, and A. Voronkov, “Extensional crisis and proving
identity,” in ATVA 2014, Sydney, Australia, 2014, vol. 8837, pp. 185–200.
ista: 'Gupta A, Kovács L, Kragl B, Voronkov A. 2014. Extensional crisis and proving
identity. ATVA 2014. ATVA: Automated Technology for Verification and Analysis,
LNCS, vol. 8837, 185–200.'
mla: Gupta, Ashutosh, et al. “Extensional Crisis and Proving Identity.” ATVA
2014, edited by Franck Cassez and Jean-François Raskin, vol. 8837, Springer,
2014, pp. 185–200, doi:10.1007/978-3-319-11936-6_14.
short: A. Gupta, L. Kovács, B. Kragl, A. Voronkov, in:, F. Cassez, J.-F. Raskin
(Eds.), ATVA 2014, Springer, 2014, pp. 185–200.
conference:
end_date: 2014-11-07
location: Sydney, Australia
name: 'ATVA: Automated Technology for Verification and Analysis'
start_date: 2014-11-03
date_created: 2018-12-11T11:54:28Z
date_published: 2014-01-01T00:00:00Z
date_updated: 2021-01-12T06:53:45Z
day: '01'
ddc:
- '000'
department:
- _id: ToHe
doi: 10.1007/978-3-319-11936-6_14
ec_funded: 1
editor:
- first_name: Franck
full_name: Cassez, Franck
last_name: Cassez
- first_name: Jean-François
full_name: Raskin, Jean-François
last_name: Raskin
file:
- access_level: open_access
checksum: af4bd3fc1f4c93075e4dc5cbf625fe7b
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:10:15Z
date_updated: 2020-07-14T12:45:19Z
file_id: '4801'
file_name: IST-2016-641-v1+1_atva2014.pdf
file_size: 244294
relation: main_file
file_date_updated: 2020-07-14T12:45:19Z
has_accepted_license: '1'
intvolume: ' 8837'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Submitted Version
page: 185 - 200
project:
- _id: 25EE3708-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '267989'
name: Quantitative Reactive Modeling
- _id: 25F5A88A-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: S11402-N23
name: Moderne Concurrency Paradigms
publication: ATVA 2014
publication_status: published
publisher: Springer
publist_id: '5226'
pubrep_id: '641'
quality_controlled: '1'
scopus_import: 1
status: public
title: Extensional crisis and proving identity
type: conference
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
volume: 8837
year: '2014'
...
---
_id: '12632'
abstract:
- lang: eng
text: We investigate the performance of five glacier melt models over a multi-decadal
period in order to assess their ability to model future glacier response. The
models range from a simple degree-day model, based solely on air temperature,
to more-sophisticated models, including the full shortwave radiation balance.
In addition to the empirical models, the performance of a physically based energy-balance
(EB) model is examined. The melt models are coupled to an accumulation and a surface
evolution model and applied in a distributed manner to Rhonegletscher, Switzerland,
over the period 1929–2012 at hourly resolution. For calibration, seasonal mass-balance
measurements (2006–12) are used. Decadal ice volume changes for six periods in
the years 1929–2012 serve for model validation. Over the period 2006–12, there
are almost no differences in performance between the models, except for EB, which
is less consistent with observations, likely due to lack of meteorological in
situ data. However, simulations over the long term (1929–2012) reveal that models
which include a separate term for shortwave radiation agree best with the observed
ice volume changes, indicating that their melt relationships are robust in time
and thus suitable for long-term modelling, in contrast to more empirical approaches
that are oversensitive to temperature fluctuations.
article_processing_charge: No
article_type: original
author:
- first_name: Jeannette
full_name: Gabbi, Jeannette
last_name: Gabbi
- first_name: Marco
full_name: Carenzo, Marco
last_name: Carenzo
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
- first_name: Andreas
full_name: Bauder, Andreas
last_name: Bauder
- first_name: Martin
full_name: Funk, Martin
last_name: Funk
citation:
ama: Gabbi J, Carenzo M, Pellicciotti F, Bauder A, Funk M. A comparison of empirical
and physically based glacier surface melt models for long-term simulations of
glacier response. Journal of Glaciology. 2014;60(224):1140-1154. doi:10.3189/2014jog14j011
apa: Gabbi, J., Carenzo, M., Pellicciotti, F., Bauder, A., & Funk, M. (2014).
A comparison of empirical and physically based glacier surface melt models for
long-term simulations of glacier response. Journal of Glaciology. International
Glaciological Society. https://doi.org/10.3189/2014jog14j011
chicago: Gabbi, Jeannette, Marco Carenzo, Francesca Pellicciotti, Andreas Bauder,
and Martin Funk. “A Comparison of Empirical and Physically Based Glacier Surface
Melt Models for Long-Term Simulations of Glacier Response.” Journal of Glaciology.
International Glaciological Society, 2014. https://doi.org/10.3189/2014jog14j011.
ieee: J. Gabbi, M. Carenzo, F. Pellicciotti, A. Bauder, and M. Funk, “A comparison
of empirical and physically based glacier surface melt models for long-term simulations
of glacier response,” Journal of Glaciology, vol. 60, no. 224. International
Glaciological Society, pp. 1140–1154, 2014.
ista: Gabbi J, Carenzo M, Pellicciotti F, Bauder A, Funk M. 2014. A comparison of
empirical and physically based glacier surface melt models for long-term simulations
of glacier response. Journal of Glaciology. 60(224), 1140–1154.
mla: Gabbi, Jeannette, et al. “A Comparison of Empirical and Physically Based Glacier
Surface Melt Models for Long-Term Simulations of Glacier Response.” Journal
of Glaciology, vol. 60, no. 224, International Glaciological Society, 2014,
pp. 1140–54, doi:10.3189/2014jog14j011.
short: J. Gabbi, M. Carenzo, F. Pellicciotti, A. Bauder, M. Funk, Journal of Glaciology
60 (2014) 1140–1154.
date_created: 2023-02-20T08:16:34Z
date_published: 2014-08-01T00:00:00Z
date_updated: 2023-02-24T08:56:35Z
day: '01'
doi: 10.3189/2014jog14j011
extern: '1'
intvolume: ' 60'
issue: '224'
keyword:
- Earth-Surface Processes
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.3189/2014JoG14J011
month: '08'
oa: 1
oa_version: Published Version
page: 1140-1154
publication: Journal of Glaciology
publication_identifier:
eissn:
- 1727-5652
issn:
- 0022-1430
publication_status: published
publisher: International Glaciological Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: A comparison of empirical and physically based glacier surface melt models
for long-term simulations of glacier response
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 60
year: '2014'
...
---
_id: '12634'
abstract:
- lang: eng
text: 'Glaciers in the Andes of Chile seem to be shrinking and possibly loosing
mass, but the number and types of studies conducted, constrained mainly by data
availability, are not sufficient to provide a synopsis of glacier changes for
the past or future or explain in an explicit way causes of the observed changes.
In this paper, we provide a systematic review of changes in glaciers for the entire
country, followed by a discussion of the studies that have provided evidence of
such changes. We identify a missing type of work in distributed, physically-oriented
modelling studies that are needed to bridge the gap between the numerous remote
sensing studies and the specific, point scale works focused on process understanding.
We use an advanced mass balance model applied to one of the best monitored glaciers
in the region to investigate four main research issues that should be addressed
in modelling studies for a sound assessment of glacier changes: 1) the use of
physically-based models of glacier ablation (energy balance models) versus more
empirical models (enhanced temperature index approaches); 2) the importance of
the correct extrapolation of air temperature forcing on glaciers and in high elevation
areas and the large uncertainty in model outputs associated with it; 3) the role
played by snow gravitational redistribution; and 4) the uncertainty associated
with future climate scenarios. We quantify differences in model outputs associated
with each of these choices, and conclude with suggestions for future work directions.'
article_processing_charge: No
article_type: review
author:
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
orcid: 0000-0002-5554-8087
- first_name: S.
full_name: Ragettli, S.
last_name: Ragettli
- first_name: M.
full_name: Carenzo, M.
last_name: Carenzo
- first_name: J.
full_name: McPhee, J.
last_name: McPhee
citation:
ama: Pellicciotti F, Ragettli S, Carenzo M, McPhee J. Changes of glaciers in the
Andes of Chile and priorities for future work. Science of The Total Environment.
2014;493:1197-1210. doi:10.1016/j.scitotenv.2013.10.055
apa: Pellicciotti, F., Ragettli, S., Carenzo, M., & McPhee, J. (2014). Changes
of glaciers in the Andes of Chile and priorities for future work. Science of
The Total Environment. Elsevier. https://doi.org/10.1016/j.scitotenv.2013.10.055
chicago: Pellicciotti, Francesca, S. Ragettli, M. Carenzo, and J. McPhee. “Changes
of Glaciers in the Andes of Chile and Priorities for Future Work.” Science
of The Total Environment. Elsevier, 2014. https://doi.org/10.1016/j.scitotenv.2013.10.055.
ieee: F. Pellicciotti, S. Ragettli, M. Carenzo, and J. McPhee, “Changes of glaciers
in the Andes of Chile and priorities for future work,” Science of The Total
Environment, vol. 493. Elsevier, pp. 1197–1210, 2014.
ista: Pellicciotti F, Ragettli S, Carenzo M, McPhee J. 2014. Changes of glaciers
in the Andes of Chile and priorities for future work. Science of The Total Environment.
493, 1197–1210.
mla: Pellicciotti, Francesca, et al. “Changes of Glaciers in the Andes of Chile
and Priorities for Future Work.” Science of The Total Environment, vol.
493, Elsevier, 2014, pp. 1197–210, doi:10.1016/j.scitotenv.2013.10.055.
short: F. Pellicciotti, S. Ragettli, M. Carenzo, J. McPhee, Science of The Total
Environment 493 (2014) 1197–1210.
date_created: 2023-02-20T08:16:46Z
date_published: 2014-09-15T00:00:00Z
date_updated: 2024-10-14T12:04:02Z
day: '15'
doi: 10.1016/j.scitotenv.2013.10.055
extern: '1'
intvolume: ' 493'
keyword:
- Pollution
- Waste Management and Disposal
- Environmental Chemistry
- Environmental Engineering
language:
- iso: eng
month: '09'
oa_version: None
page: 1197-1210
publication: Science of The Total Environment
publication_identifier:
issn:
- 0048-9697
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Changes of glaciers in the Andes of Chile and priorities for future work
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 493
year: '2014'
...
---
_id: '12635'
abstract:
- lang: eng
text: 'Switzerland is one of the countries with some of the longest and best glaciological
data sets. Its glaciers and their changes in response to climate have been extensively
investigated, and the number and quality of related studies are notable. However,
a comprehensive review of glacier changes and their impact on the hydrology of
glacierised catchments for Switzerland is missing and we use the opportunity provided
by the EU-FP7 ACQWA project to review the current state of knowledge about past
changes and future projections. We examine the type of models that have been applied
to infer glacier evolution and identify knowledge gaps that should be addressed
in future research in addition to those indicated in previous publications. Common
characteristics in long-term series of projected future glacier runoff are an
initial peak followed by a decline, associated with shifts in seasonality, earlier
melt onset and reduced summer runoff. However, the quantitative predictions are
difficult to compare, as studies differ in terms of model structure, calibration
strategies, input data, temporal and spatial resolution as well as future scenarios
used for impact studies. We identify two sources of uncertainties among those
emerging from recent research, and use simulations over four glaciers to: i) quantify
the importance of the correct extrapolation of air temperature, and ii) point
at the key role played by debris cover in modulating glacier response.'
article_processing_charge: No
article_type: review
author:
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
orcid: 0000-0002-5554-8087
- first_name: M.
full_name: Carenzo, M.
last_name: Carenzo
- first_name: R.
full_name: Bordoy, R.
last_name: Bordoy
- first_name: M.
full_name: Stoffel, M.
last_name: Stoffel
citation:
ama: 'Pellicciotti F, Carenzo M, Bordoy R, Stoffel M. Changes in glaciers in the
Swiss Alps and impact on basin hydrology: Current state of the art and future
research. Science of The Total Environment. 2014;493:1152-1170. doi:10.1016/j.scitotenv.2014.04.022'
apa: 'Pellicciotti, F., Carenzo, M., Bordoy, R., & Stoffel, M. (2014). Changes
in glaciers in the Swiss Alps and impact on basin hydrology: Current state of
the art and future research. Science of The Total Environment. Elsevier.
https://doi.org/10.1016/j.scitotenv.2014.04.022'
chicago: 'Pellicciotti, Francesca, M. Carenzo, R. Bordoy, and M. Stoffel. “Changes
in Glaciers in the Swiss Alps and Impact on Basin Hydrology: Current State of
the Art and Future Research.” Science of The Total Environment. Elsevier,
2014. https://doi.org/10.1016/j.scitotenv.2014.04.022.'
ieee: 'F. Pellicciotti, M. Carenzo, R. Bordoy, and M. Stoffel, “Changes in glaciers
in the Swiss Alps and impact on basin hydrology: Current state of the art and
future research,” Science of The Total Environment, vol. 493. Elsevier,
pp. 1152–1170, 2014.'
ista: 'Pellicciotti F, Carenzo M, Bordoy R, Stoffel M. 2014. Changes in glaciers
in the Swiss Alps and impact on basin hydrology: Current state of the art and
future research. Science of The Total Environment. 493, 1152–1170.'
mla: 'Pellicciotti, Francesca, et al. “Changes in Glaciers in the Swiss Alps and
Impact on Basin Hydrology: Current State of the Art and Future Research.” Science
of The Total Environment, vol. 493, Elsevier, 2014, pp. 1152–70, doi:10.1016/j.scitotenv.2014.04.022.'
short: F. Pellicciotti, M. Carenzo, R. Bordoy, M. Stoffel, Science of The Total
Environment 493 (2014) 1152–1170.
date_created: 2023-02-20T08:16:51Z
date_published: 2014-09-15T00:00:00Z
date_updated: 2024-10-14T12:03:49Z
day: '15'
doi: 10.1016/j.scitotenv.2014.04.022
extern: '1'
intvolume: ' 493'
keyword:
- Pollution
- Waste Management and Disposal
- Environmental Chemistry
- Environmental Engineering
language:
- iso: eng
month: '09'
oa_version: None
page: 1152-1170
publication: Science of The Total Environment
publication_identifier:
issn:
- 0048-9697
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Changes in glaciers in the Swiss Alps and impact on basin hydrology: Current
state of the art and future research'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 493
year: '2014'
...
---
_id: '12636'
abstract:
- lang: eng
text: Himalayan glacier tongues are commonly debris covered and they are an important
source of melt water. However, they remain relatively unstudied because of the
inaccessibility of the terrain and the difficulties in field work caused by the
thick debris mantles. Observations of debris-covered glaciers are therefore scarce
and airborne remote sensing may bridge the gap between scarce field observations
and coarse resolution space-borne remote sensing. In this study we deploy an Unmanned
Aerial Vehicle (UAV) before and after the melt and monsoon season (May and October
2013) over the debris-covered tongue of the Lirung Glacier in Nepal. Based on
stereo-imaging and the structure for motion algorithm we derive highly detailed
ortho-mosaics and digital elevation models (DEMs), which we geometrically correct
using differential GPS observations collected in the field. Based on DEM differencing
and manual feature tracking we derive the mass loss and the surface velocity of
the glacier at a high spatial accuracy. On average, mass loss is limited and the
surface velocity is very small. However, the spatial variability of melt rates
is very high, and ice cliffs and supra-glacial ponds show mass losses that can
be an order of magnitude higher than the average. We suggest that future research
should focus on the interaction between supra-glacial ponds, ice cliffs and englacial
hydrology to further understand the dynamics of debris-covered glaciers. Finally,
we conclude that UAV deployment has large potential in glaciology and it may revolutionize
methods currently applied in studying glacier surface features.
article_processing_charge: No
article_type: original
author:
- first_name: W.W.
full_name: Immerzeel, W.W.
last_name: Immerzeel
- first_name: P.D.A.
full_name: Kraaijenbrink, P.D.A.
last_name: Kraaijenbrink
- first_name: J.M.
full_name: Shea, J.M.
last_name: Shea
- first_name: A.B.
full_name: Shrestha, A.B.
last_name: Shrestha
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
- first_name: M.F.P.
full_name: Bierkens, M.F.P.
last_name: Bierkens
- first_name: S.M.
full_name: de Jong, S.M.
last_name: de Jong
citation:
ama: Immerzeel WW, Kraaijenbrink PDA, Shea JM, et al. High-resolution monitoring
of Himalayan glacier dynamics using unmanned aerial vehicles. Remote Sensing
of Environment. 2014;150(7):93-103. doi:10.1016/j.rse.2014.04.025
apa: Immerzeel, W. W., Kraaijenbrink, P. D. A., Shea, J. M., Shrestha, A. B., Pellicciotti,
F., Bierkens, M. F. P., & de Jong, S. M. (2014). High-resolution monitoring
of Himalayan glacier dynamics using unmanned aerial vehicles. Remote Sensing
of Environment. Elsevier. https://doi.org/10.1016/j.rse.2014.04.025
chicago: Immerzeel, W.W., P.D.A. Kraaijenbrink, J.M. Shea, A.B. Shrestha, Francesca
Pellicciotti, M.F.P. Bierkens, and S.M. de Jong. “High-Resolution Monitoring of
Himalayan Glacier Dynamics Using Unmanned Aerial Vehicles.” Remote Sensing
of Environment. Elsevier, 2014. https://doi.org/10.1016/j.rse.2014.04.025.
ieee: W. W. Immerzeel et al., “High-resolution monitoring of Himalayan glacier
dynamics using unmanned aerial vehicles,” Remote Sensing of Environment,
vol. 150, no. 7. Elsevier, pp. 93–103, 2014.
ista: Immerzeel WW, Kraaijenbrink PDA, Shea JM, Shrestha AB, Pellicciotti F, Bierkens
MFP, de Jong SM. 2014. High-resolution monitoring of Himalayan glacier dynamics
using unmanned aerial vehicles. Remote Sensing of Environment. 150(7), 93–103.
mla: Immerzeel, W. W., et al. “High-Resolution Monitoring of Himalayan Glacier Dynamics
Using Unmanned Aerial Vehicles.” Remote Sensing of Environment, vol. 150,
no. 7, Elsevier, 2014, pp. 93–103, doi:10.1016/j.rse.2014.04.025.
short: W.W. Immerzeel, P.D.A. Kraaijenbrink, J.M. Shea, A.B. Shrestha, F. Pellicciotti,
M.F.P. Bierkens, S.M. de Jong, Remote Sensing of Environment 150 (2014) 93–103.
date_created: 2023-02-20T08:16:56Z
date_published: 2014-07-01T00:00:00Z
date_updated: 2023-02-24T08:32:39Z
day: '01'
doi: 10.1016/j.rse.2014.04.025
extern: '1'
intvolume: ' 150'
issue: '7'
keyword:
- Computers in Earth Sciences
- Geology
- Soil Science
language:
- iso: eng
month: '07'
oa_version: None
page: 93-103
publication: Remote Sensing of Environment
publication_identifier:
issn:
- 0034-4257
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: High-resolution monitoring of Himalayan glacier dynamics using unmanned aerial
vehicles
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 150
year: '2014'
...
---
_id: '12637'
abstract:
- lang: eng
text: The performance of glaciohydrological models which simulate catchment response
to climate variability depends to a large degree on the data used to force the
models. The forcing data become increasingly important in high-elevation, glacierized
catchments where the interplay between extreme topography, climate, and the cryosphere
is complex. It is challenging to generate a reliable forcing data set that captures
this spatial heterogeneity. In this paper, we analyze the results of a 1 year
field campaign focusing on air temperature and precipitation observations in the
Langtang valley in the Nepalese Himalayas. We use the observed time series to
characterize both temperature lapse rates (LRs) and precipitation gradients (PGs).
We study their spatial and temporal variability, and we attempt to identify possible
controlling factors. We show that very clear LRs exist in the valley and that
there are strong seasonal differences related to the water vapor content in the
atmosphere. Results also show that the LRs are generally shallower than the commonly
used environmental lapse rates. The analysis of the precipitation observations
reveals that there is great variability in precipitation over short horizontal
distances. A uniform valley wide PG cannot be established, and several scale-dependent
mechanisms may explain our observations. We complete our analysis by showing the
impact of the observed LRs and PGs on the outputs of the TOPKAPI-ETH glaciohydrological
model. We conclude that LRs and PGs have a very large impact on the water balance
composition and that short-term monitoring campaigns have the potential to improve
model quality considerably.
article_processing_charge: No
article_type: original
author:
- first_name: W. W.
full_name: Immerzeel, W. W.
last_name: Immerzeel
- first_name: L.
full_name: Petersen, L.
last_name: Petersen
- first_name: S.
full_name: Ragettli, S.
last_name: Ragettli
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
citation:
ama: Immerzeel WW, Petersen L, Ragettli S, Pellicciotti F. The importance of observed
gradients of air temperature and precipitation for modeling runoff from a glacierized
watershed in the Nepalese Himalayas. Water Resources Research. 2014;50(3):2212-2226.
doi:10.1002/2013wr014506
apa: Immerzeel, W. W., Petersen, L., Ragettli, S., & Pellicciotti, F. (2014).
The importance of observed gradients of air temperature and precipitation for
modeling runoff from a glacierized watershed in the Nepalese Himalayas. Water
Resources Research. American Geophysical Union. https://doi.org/10.1002/2013wr014506
chicago: Immerzeel, W. W., L. Petersen, S. Ragettli, and Francesca Pellicciotti.
“The Importance of Observed Gradients of Air Temperature and Precipitation for
Modeling Runoff from a Glacierized Watershed in the Nepalese Himalayas.” Water
Resources Research. American Geophysical Union, 2014. https://doi.org/10.1002/2013wr014506.
ieee: W. W. Immerzeel, L. Petersen, S. Ragettli, and F. Pellicciotti, “The importance
of observed gradients of air temperature and precipitation for modeling runoff
from a glacierized watershed in the Nepalese Himalayas,” Water Resources Research,
vol. 50, no. 3. American Geophysical Union, pp. 2212–2226, 2014.
ista: Immerzeel WW, Petersen L, Ragettli S, Pellicciotti F. 2014. The importance
of observed gradients of air temperature and precipitation for modeling runoff
from a glacierized watershed in the Nepalese Himalayas. Water Resources Research.
50(3), 2212–2226.
mla: Immerzeel, W. W., et al. “The Importance of Observed Gradients of Air Temperature
and Precipitation for Modeling Runoff from a Glacierized Watershed in the Nepalese
Himalayas.” Water Resources Research, vol. 50, no. 3, American Geophysical
Union, 2014, pp. 2212–26, doi:10.1002/2013wr014506.
short: W.W. Immerzeel, L. Petersen, S. Ragettli, F. Pellicciotti, Water Resources
Research 50 (2014) 2212–2226.
date_created: 2023-02-20T08:17:01Z
date_published: 2014-03-01T00:00:00Z
date_updated: 2023-02-24T08:28:23Z
day: '01'
doi: 10.1002/2013wr014506
extern: '1'
intvolume: ' 50'
issue: '3'
keyword:
- Water Science and Technology
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1002/2013WR014506
month: '03'
oa: 1
oa_version: Published Version
page: 2212-2226
publication: Water Resources Research
publication_identifier:
eissn:
- 1944-7973
issn:
- 0043-1397
publication_status: published
publisher: American Geophysical Union
quality_controlled: '1'
scopus_import: '1'
status: public
title: The importance of observed gradients of air temperature and precipitation for
modeling runoff from a glacierized watershed in the Nepalese Himalayas
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 50
year: '2014'
...
---
_id: '1309'
abstract:
- lang: eng
text: We show that weak solutions of the Derrida-Lebowitz-Speer-Spohn (DLSS) equation
display infinite speed of support propagation. We apply our method to the case
of the quantum drift-diffusion equation which augments the DLSS equation with
a drift term and possibly a second-order diffusion term. The proof is accomplished
using weighted entropy estimates, Hardy's inequality and a family of singular
weight functions to derive a differential inequality; the differential inequality
shows exponential growth of the weighted entropy, with the growth constant blowing
up very fast as the singularity of the weight becomes sharper. To the best of
our knowledge, this is the first example of a nonnegativity-preserving higher-order
parabolic equation displaying infinite speed of support propagation.
author:
- first_name: Julian L
full_name: Julian Fischer
id: 2C12A0B0-F248-11E8-B48F-1D18A9856A87
last_name: Fischer
orcid: 0000-0002-0479-558X
citation:
ama: Fischer JL. Infinite speed of support propagation for the Derrida-Lebowitz-Speer-Spohn
equation and quantum drift-diffusion models. Nonlinear Differential Equations
and Applications. 2014;21(1):27-50. doi:10.1007/s00030-013-0235-0
apa: Fischer, J. L. (2014). Infinite speed of support propagation for the Derrida-Lebowitz-Speer-Spohn
equation and quantum drift-diffusion models. Nonlinear Differential Equations
and Applications. Birkhäuser. https://doi.org/10.1007/s00030-013-0235-0
chicago: Fischer, Julian L. “Infinite Speed of Support Propagation for the Derrida-Lebowitz-Speer-Spohn
Equation and Quantum Drift-Diffusion Models.” Nonlinear Differential Equations
and Applications. Birkhäuser, 2014. https://doi.org/10.1007/s00030-013-0235-0.
ieee: J. L. Fischer, “Infinite speed of support propagation for the Derrida-Lebowitz-Speer-Spohn
equation and quantum drift-diffusion models,” Nonlinear Differential Equations
and Applications, vol. 21, no. 1. Birkhäuser, pp. 27–50, 2014.
ista: Fischer JL. 2014. Infinite speed of support propagation for the Derrida-Lebowitz-Speer-Spohn
equation and quantum drift-diffusion models. Nonlinear Differential Equations
and Applications. 21(1), 27–50.
mla: Fischer, Julian L. “Infinite Speed of Support Propagation for the Derrida-Lebowitz-Speer-Spohn
Equation and Quantum Drift-Diffusion Models.” Nonlinear Differential Equations
and Applications, vol. 21, no. 1, Birkhäuser, 2014, pp. 27–50, doi:10.1007/s00030-013-0235-0.
short: J.L. Fischer, Nonlinear Differential Equations and Applications 21 (2014)
27–50.
date_created: 2018-12-11T11:51:17Z
date_published: 2014-01-01T00:00:00Z
date_updated: 2021-01-12T06:49:47Z
day: '01'
doi: 10.1007/s00030-013-0235-0
extern: 1
intvolume: ' 21'
issue: '1'
month: '01'
page: 27 - 50
publication: Nonlinear Differential Equations and Applications
publication_status: published
publisher: Birkhäuser
publist_id: '5960'
quality_controlled: 0
status: public
title: Infinite speed of support propagation for the Derrida-Lebowitz-Speer-Spohn
equation and quantum drift-diffusion models
type: journal_article
volume: 21
year: '2014'
...
---
_id: '1312'
abstract:
- lang: eng
text: We derive upper bounds on the waiting time of solutions to the thin-film equation
in the regime of weak slippage n ∈ [2, 32\11). In particular, we give sufficient
conditions on the initial data for instantaneous forward motion of the free boundary.
For n ∈ (2, 32\11), our estimates are sharp, for n = 2, they are sharp up to a
logarithmic correction term. Note that the case n = 2 corresponds-with a grain
of salt-to the assumption of the Navier slip condition at the fluid-solid interface.
We also obtain results in the regime of strong slippage n ∈ (1,2); however, in
this regime we expect them not to be optimal. Our method is based on weighted
backward entropy estimates, Hardy's inequality and singular weight functions;
we deduce a differential inequality which would enforce blowup of the weighted
entropy if the contact line were to remain stationary for too long.
author:
- first_name: Julian L
full_name: Julian Fischer
id: 2C12A0B0-F248-11E8-B48F-1D18A9856A87
last_name: Fischer
orcid: 0000-0002-0479-558X
citation:
ama: 'Fischer JL. Upper bounds on waiting times for the Thin-film equation: The
case of weak slippage. Archive for Rational Mechanics and Analysis. 2014;211(3):771-818.
doi:10.1007/s00205-013-0690-0'
apa: 'Fischer, J. L. (2014). Upper bounds on waiting times for the Thin-film equation:
The case of weak slippage. Archive for Rational Mechanics and Analysis.
Springer. https://doi.org/10.1007/s00205-013-0690-0'
chicago: 'Fischer, Julian L. “Upper Bounds on Waiting Times for the Thin-Film Equation:
The Case of Weak Slippage.” Archive for Rational Mechanics and Analysis.
Springer, 2014. https://doi.org/10.1007/s00205-013-0690-0.'
ieee: 'J. L. Fischer, “Upper bounds on waiting times for the Thin-film equation:
The case of weak slippage,” Archive for Rational Mechanics and Analysis,
vol. 211, no. 3. Springer, pp. 771–818, 2014.'
ista: 'Fischer JL. 2014. Upper bounds on waiting times for the Thin-film equation:
The case of weak slippage. Archive for Rational Mechanics and Analysis. 211(3),
771–818.'
mla: 'Fischer, Julian L. “Upper Bounds on Waiting Times for the Thin-Film Equation:
The Case of Weak Slippage.” Archive for Rational Mechanics and Analysis,
vol. 211, no. 3, Springer, 2014, pp. 771–818, doi:10.1007/s00205-013-0690-0.'
short: J.L. Fischer, Archive for Rational Mechanics and Analysis 211 (2014) 771–818.
date_created: 2018-12-11T11:51:18Z
date_published: 2014-01-01T00:00:00Z
date_updated: 2021-01-12T06:49:48Z
day: '01'
doi: 10.1007/s00205-013-0690-0
extern: 1
intvolume: ' 211'
issue: '3'
month: '01'
page: 771 - 818
publication: Archive for Rational Mechanics and Analysis
publication_status: published
publisher: Springer
publist_id: '5959'
quality_controlled: 0
status: public
title: 'Upper bounds on waiting times for the Thin-film equation: The case of weak
slippage'
type: journal_article
volume: 211
year: '2014'
...
---
_id: '1979'
abstract:
- lang: eng
text: NADH-ubiquinone oxidoreductase (complex I) is the first and largest enzyme
in the respiratory chain of mitochondria and many bacteria. It couples the transfer
of two electrons between NADH and ubiquinone to the translocation of four protons
across the membrane. Complex I is an L-shaped assembly formed by the hydrophilic
(peripheral) arm, containing all the redox centres performing electron transfer
and the membrane arm, containing proton-translocating machinery. Mitochondrial
complex I consists of 44 subunits of about 1 MDa in total, whilst the prokaryotic
enzyme is simpler and generally consists of 14 conserved “core” subunits. Recently
we have determined the first atomic structure of the entire complex I, using the
enzyme from Thermus thermophilus (536 kDa, 16 subunits, 9 Fe-S clusters, 64 TM
helices). Structure suggests a unique coupling mechanism, with redox energy of
electron transfer driving proton translocation via long-range (up to ~200 Å) conformational
changes. It resembles a steam engine, with coupling elements (akin to coupling
rods) linking parts of this molecular machine.
author:
- first_name: Leonid A
full_name: Leonid Sazanov
id: 338D39FE-F248-11E8-B48F-1D18A9856A87
last_name: Sazanov
orcid: 0000-0002-0977-7989
citation:
ama: Sazanov LA. The mechanism of coupling between electron transfer and proton
translocation in respiratory complex I. Journal of Bioenergetics and Biomembranes.
2014;46(4):247-253. doi:10.1007/s10863-014-9554-z
apa: Sazanov, L. A. (2014). The mechanism of coupling between electron transfer
and proton translocation in respiratory complex I. Journal of Bioenergetics
and Biomembranes. Springer. https://doi.org/10.1007/s10863-014-9554-z
chicago: Sazanov, Leonid A. “The Mechanism of Coupling between Electron Transfer
and Proton Translocation in Respiratory Complex I.” Journal of Bioenergetics
and Biomembranes. Springer, 2014. https://doi.org/10.1007/s10863-014-9554-z.
ieee: L. A. Sazanov, “The mechanism of coupling between electron transfer and proton
translocation in respiratory complex I,” Journal of Bioenergetics and Biomembranes,
vol. 46, no. 4. Springer, pp. 247–253, 2014.
ista: Sazanov LA. 2014. The mechanism of coupling between electron transfer and
proton translocation in respiratory complex I. Journal of Bioenergetics and Biomembranes.
46(4), 247–253.
mla: Sazanov, Leonid A. “The Mechanism of Coupling between Electron Transfer and
Proton Translocation in Respiratory Complex I.” Journal of Bioenergetics and
Biomembranes, vol. 46, no. 4, Springer, 2014, pp. 247–53, doi:10.1007/s10863-014-9554-z.
short: L.A. Sazanov, Journal of Bioenergetics and Biomembranes 46 (2014) 247–253.
date_created: 2018-12-11T11:55:01Z
date_published: 2014-08-01T00:00:00Z
date_updated: 2021-01-12T06:54:28Z
day: '01'
doi: 10.1007/s10863-014-9554-z
extern: 1
intvolume: ' 46'
issue: '4'
month: '08'
page: 247 - 253
publication: Journal of Bioenergetics and Biomembranes
publication_status: published
publisher: Springer
publist_id: '5104'
quality_controlled: 0
status: public
title: The mechanism of coupling between electron transfer and proton translocation
in respiratory complex I
type: journal_article
volume: 46
year: '2014'
...
---
_id: '1980'
abstract:
- lang: eng
text: Non-proton pumping type II NADH dehydrogenase (NDH-2) plays a central role
in the respiratory metabolism of bacteria, and in the mitochondria of fungi, plants
and protists. The lack of NDH-2 in mammalian mitochondria and its essentiality
in important bacterial pathogens suggests these enzymes may represent a potential
new drug target to combat microbial pathogens. Here, we report the first crystal
structure of a bacterial NDH-2 enzyme at 2.5Å resolution from Caldalkalibacillus
thermarum. The NDH-2 structure reveals a homodimeric organization that has a unique
dimer interface. NDH-2 is localized to the cytoplasmic membrane by two separated
C-terminal membrane-anchoring regions that are essential for membrane localization
and FAD binding, but not NDH-2 dimerization. Comparison of bacterial NDH-2 with
the yeast NADH dehydrogenase (Ndi1) structure revealed non-overlapping binding
sites for quinone and NADH in the bacterial enzyme. The bacterial NDH-2 structure
establishes a framework for the structure-based design of small-molecule inhibitors.
acknowledgement: Funded by Health Research Council of New Zealand Royal Society
of New Zealand University of Otago New Zealand Synchrotron Group
author:
- first_name: Adam
full_name: 'Heikal, Adam '
last_name: Heikal
- first_name: Yoshio
full_name: Nakatani, Yoshio
last_name: Nakatani
- first_name: Elyse
full_name: Dunn, Elyse A
last_name: Dunn
- first_name: Marion
full_name: Weimar, Marion R
last_name: Weimar
- first_name: Catherine
full_name: Day, Catherine
last_name: Day
- first_name: Edward
full_name: Baker, Edward N
last_name: Baker
- first_name: Shaun
full_name: Lott, Shaun J
last_name: Lott
- first_name: Leonid A
full_name: Leonid Sazanov
id: 338D39FE-F248-11E8-B48F-1D18A9856A87
last_name: Sazanov
orcid: 0000-0002-0977-7989
- first_name: Gregory
full_name: Cook, Gregory
last_name: Cook
citation:
ama: 'Heikal A, Nakatani Y, Dunn E, et al. Structure of the bacterial type II NADH
dehydrogenase: a monotopic membrane protein with an essential role in energy generation.
Molecular Microbiology. 2014;91(5):950-964. doi:10.1111/mmi.12507'
apa: 'Heikal, A., Nakatani, Y., Dunn, E., Weimar, M., Day, C., Baker, E., … Cook,
G. (2014). Structure of the bacterial type II NADH dehydrogenase: a monotopic
membrane protein with an essential role in energy generation. Molecular Microbiology.
Wiley-Blackwell. https://doi.org/10.1111/mmi.12507'
chicago: 'Heikal, Adam, Yoshio Nakatani, Elyse Dunn, Marion Weimar, Catherine Day,
Edward Baker, Shaun Lott, Leonid A Sazanov, and Gregory Cook. “Structure of the
Bacterial Type II NADH Dehydrogenase: A Monotopic Membrane Protein with an Essential
Role in Energy Generation.” Molecular Microbiology. Wiley-Blackwell, 2014.
https://doi.org/10.1111/mmi.12507.'
ieee: 'A. Heikal et al., “Structure of the bacterial type II NADH dehydrogenase:
a monotopic membrane protein with an essential role in energy generation,” Molecular
Microbiology, vol. 91, no. 5. Wiley-Blackwell, pp. 950–964, 2014.'
ista: 'Heikal A, Nakatani Y, Dunn E, Weimar M, Day C, Baker E, Lott S, Sazanov LA,
Cook G. 2014. Structure of the bacterial type II NADH dehydrogenase: a monotopic
membrane protein with an essential role in energy generation. Molecular Microbiology.
91(5), 950–964.'
mla: 'Heikal, Adam, et al. “Structure of the Bacterial Type II NADH Dehydrogenase:
A Monotopic Membrane Protein with an Essential Role in Energy Generation.” Molecular
Microbiology, vol. 91, no. 5, Wiley-Blackwell, 2014, pp. 950–64, doi:10.1111/mmi.12507.'
short: A. Heikal, Y. Nakatani, E. Dunn, M. Weimar, C. Day, E. Baker, S. Lott, L.A.
Sazanov, G. Cook, Molecular Microbiology 91 (2014) 950–964.
date_created: 2018-12-11T11:55:01Z
date_published: 2014-03-01T00:00:00Z
date_updated: 2021-01-12T06:54:29Z
day: '01'
doi: 10.1111/mmi.12507
extern: 1
intvolume: ' 91'
issue: '5'
month: '03'
page: 950 - 964
publication: Molecular Microbiology
publication_status: published
publisher: Wiley-Blackwell
publist_id: '5103'
quality_controlled: 0
status: public
title: 'Structure of the bacterial type II NADH dehydrogenase: a monotopic membrane
protein with an essential role in energy generation'
type: journal_article
volume: 91
year: '2014'
...
---
_id: '1989'
abstract:
- lang: eng
text: During animal cell division, the cleavage furrow is positioned by microtubules
that signal to the actin cortex at the cell midplane. We developed a cell-free
system to recapitulate cytokinesis signaling using cytoplasmic extract from Xenopus
eggs. Microtubules grew out as asters from artificial centrosomes and met to organize
antiparallel overlap zones. These zones blocked the interpenetration of neighboring
asters and recruited cytokinesis midzone proteins, including the chromosomal passenger
complex (CPC) and centralspindlin. The CPC was transported to overlap zones, which
required two motor proteins, Kif4A and a Kif20A paralog. Using supported lipid
bilayers to mimic the plasma membrane, we observed the recruitment of cleavage
furrow markers, including an active RhoA reporter, at microtubule overlaps. This
system opens further approaches to understanding the biophysics of cytokinesis
signaling.
acknowledgement: 'This work was supported by NIH grant GM39565 (T.J.M.); MBL fellowships
from the Evans Foundation, MBL Associates, and the Colwin Fund (T.J.M. and C.M.F.);
HFSP fellowship LT000466/2012-L (M.L.); and NIH grant GM103785 (M.W.). '
article_processing_charge: No
author:
- first_name: Phuong
full_name: Nguyen, Phuong
last_name: Nguyen
- first_name: Aaron
full_name: Groen, Aaron
last_name: Groen
- first_name: Martin
full_name: Loose, Martin
id: 462D4284-F248-11E8-B48F-1D18A9856A87
last_name: Loose
orcid: 0000-0001-7309-9724
- first_name: Keisuke
full_name: Ishihara, Keisuke
last_name: Ishihara
- first_name: Martin
full_name: Wühr, Martin
last_name: Wühr
- first_name: Christine
full_name: Field, Christine
last_name: Field
- first_name: Timothy
full_name: Mitchison, Timothy
last_name: Mitchison
citation:
ama: Nguyen P, Groen A, Loose M, et al. Spatial organization of cytokinesis signaling
reconstituted in a cell-free system. Science. 2014;346(6206):244-247. doi:10.1126/science.1256773
apa: Nguyen, P., Groen, A., Loose, M., Ishihara, K., Wühr, M., Field, C., &
Mitchison, T. (2014). Spatial organization of cytokinesis signaling reconstituted
in a cell-free system. Science. American Association for the Advancement
of Science. https://doi.org/10.1126/science.1256773
chicago: Nguyen, Phuong, Aaron Groen, Martin Loose, Keisuke Ishihara, Martin Wühr,
Christine Field, and Timothy Mitchison. “Spatial Organization of Cytokinesis Signaling
Reconstituted in a Cell-Free System.” Science. American Association for
the Advancement of Science, 2014. https://doi.org/10.1126/science.1256773.
ieee: P. Nguyen et al., “Spatial organization of cytokinesis signaling reconstituted
in a cell-free system,” Science, vol. 346, no. 6206. American Association
for the Advancement of Science, pp. 244–247, 2014.
ista: Nguyen P, Groen A, Loose M, Ishihara K, Wühr M, Field C, Mitchison T. 2014.
Spatial organization of cytokinesis signaling reconstituted in a cell-free system.
Science. 346(6206), 244–247.
mla: Nguyen, Phuong, et al. “Spatial Organization of Cytokinesis Signaling Reconstituted
in a Cell-Free System.” Science, vol. 346, no. 6206, American Association
for the Advancement of Science, 2014, pp. 244–47, doi:10.1126/science.1256773.
short: P. Nguyen, A. Groen, M. Loose, K. Ishihara, M. Wühr, C. Field, T. Mitchison,
Science 346 (2014) 244–247.
date_created: 2018-12-11T11:55:04Z
date_published: 2014-10-10T00:00:00Z
date_updated: 2025-08-05T14:39:34Z
day: '10'
doi: 10.1126/science.1256773
extern: '1'
intvolume: ' 346'
issue: '6206'
language:
- iso: eng
month: '10'
oa_version: None
page: 244 - 247
publication: Science
publication_status: published
publisher: American Association for the Advancement of Science
publist_id: '5093'
status: public
title: Spatial organization of cytokinesis signaling reconstituted in a cell-free
system
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 346
year: '2014'
...