---
_id: '1241'
abstract:
- lang: eng
text: 'How likely is it that a population escapes extinction through adaptive evolution?
The answer to this question is of great relevance in conservation biology, where
we aim at species’ rescue and the maintenance of biodiversity, and in agriculture
and medicine, where we seek to hamper the emergence of pesticide or drug resistance.
By reshuffling the genome, recombination has two antagonistic effects on the probability
of evolutionary rescue: It generates and it breaks up favorable gene combinations.
Which of the two effects prevails depends on the fitness effects of mutations
and on the impact of stochasticity on the allele frequencies. In this article,
we analyze a mathematical model for rescue after a sudden environmental change
when adaptation is contingent on mutations at two loci. The analysis reveals a
complex nonlinear dependence of population survival on recombination. We moreover
find that, counterintuitively, a fast eradication of the wild type can promote
rescue in the presence of recombination. The model also shows that two-step rescue
is not unlikely to happen and can even be more likely than single-step rescue
(where adaptation relies on a single mutation), depending on the circumstances.'
acknowledgement: This work was made possible by a “For Women in Science” fellowship
(L’Oréal Österreich in cooperation with the Austrian Commission for the United Nations
Educational, Scientific, and Cultural Organization and the Austrian Academy of Sciences
with financial support from the Federal Ministry for Science and Research Austria)
and European Research Council grant 250152 (to Nick Barton).
article_processing_charge: No
author:
- first_name: Hildegard
full_name: Uecker, Hildegard
id: 2DB8F68A-F248-11E8-B48F-1D18A9856A87
last_name: Uecker
orcid: 0000-0001-9435-2813
- first_name: Joachim
full_name: Hermisson, Joachim
last_name: Hermisson
citation:
ama: Uecker H, Hermisson J. The role of recombination in evolutionary rescue. Genetics.
2016;202(2):721-732. doi:10.1534/genetics.115.180299
apa: Uecker, H., & Hermisson, J. (2016). The role of recombination in evolutionary
rescue. Genetics. Genetics Society of America. https://doi.org/10.1534/genetics.115.180299
chicago: Uecker, Hildegard, and Joachim Hermisson. “The Role of Recombination in
Evolutionary Rescue.” Genetics. Genetics Society of America, 2016. https://doi.org/10.1534/genetics.115.180299.
ieee: H. Uecker and J. Hermisson, “The role of recombination in evolutionary rescue,”
Genetics, vol. 202, no. 2. Genetics Society of America, pp. 721–732, 2016.
ista: Uecker H, Hermisson J. 2016. The role of recombination in evolutionary rescue.
Genetics. 202(2), 721–732.
mla: Uecker, Hildegard, and Joachim Hermisson. “The Role of Recombination in Evolutionary
Rescue.” Genetics, vol. 202, no. 2, Genetics Society of America, 2016,
pp. 721–32, doi:10.1534/genetics.115.180299.
short: H. Uecker, J. Hermisson, Genetics 202 (2016) 721–732.
das_tickbox: '1'
date_created: 2018-12-11T11:50:54Z
date_published: 2016-02-01T00:00:00Z
date_updated: 2026-06-18T07:59:00Z
day: '01'
ddc:
- '570'
department:
- _id: NiBa
doi: 10.1534/genetics.115.180299
ec_funded: 1
intvolume: ' 202'
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://biorxiv.org/content/early/2015/07/06/022020.abstract
month: '02'
oa: 1
oa_version: Preprint
page: 721 - 732
project:
- _id: 25B07788-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '250152'
name: Limits to selection in biology and in evolutionary computation
- _id: 25B67606-B435-11E9-9278-68D0E5697425
name: L'OREAL Fellowship
publication: Genetics
publication_status: published
publisher: Genetics Society of America
publist_id: '6091'
quality_controlled: '1'
scopus_import: '1'
status: public
title: The role of recombination in evolutionary rescue
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 202
year: '2016'
...
---
_id: '12196'
abstract:
- lang: eng
text: SNC1 (SUPPRESSOR OF NPR1, CONSTITUTIVE 1) is one of a suite of intracellular
Arabidopsis NOD-like receptor (NLR) proteins which, upon activation, result in
the induction of defense responses. However, the molecular mechanisms underlying
NLR activation and the subsequent provocation of immune responses are only partially
characterized. To identify negative regulators of NLR-mediated immunity, a forward
genetic screen was undertaken to search for enhancers of the dwarf, autoimmune
gain-of-function snc1 mutant. To avoid lethality resulting from severe dwarfism,
the screen was conducted using mos4 (modifier of snc1, 4) snc1 plants, which display
wild-type-like morphology and resistance. M2 progeny were screened for mutant,
snc1-enhancing (muse) mutants displaying a reversion to snc1-like phenotypes.
The muse9 mos4 snc1 triple mutant was found to exhibit dwarf morphology, elevated
expression of the pPR2-GUS defense marker reporter gene and enhanced resistance
to the oomycete pathogen Hyaloperonospora arabidopsidis Noco2. Via map-based cloning
and Illumina sequencing, it was determined that the muse9 mutation is in the gene
encoding the SWI/SNF chromatin remodeler SYD (SPLAYED), and was thus renamed syd-10.
The syd-10 single mutant has no observable alteration from wild-type-like resistance,
although the syd-4 T-DNA insertion allele displays enhanced resistance to the
bacterial pathogen Pseudomonas syringae pv. maculicola ES4326. Transcription of
SNC1 is increased in both syd-4 and syd-10. These data suggest that SYD plays
a subtle, specific role in the regulation of SNC1 expression and SNC1-mediated
immunity. SYD may work with other proteins at the chromatin level to repress SNC1
transcription; such regulation is important for fine-tuning the expression of
NLR-encoding genes to prevent unpropitious autoimmunity.
acknowledgement: "This work was supported by the National Sciences and Engineering
Research Council of Canada [Canada Graduate\r\nScholarship–Doctoral to K.J.; Discovery
Grant to X.L.]; the department of Botany at the University of f British Columbia\r\n[the
Dewar Cooper Memorial Fund to X.L.].The authors would like to thank Dr. Yuelin Zhang
and Ms. Yan Li for their assistance with next-generation sequencing, and Mr. Charles
Copeland for critical reading of the manuscript."
article_processing_charge: No
article_type: original
author:
- first_name: Kaeli C.M.
full_name: Johnson, Kaeli C.M.
last_name: Johnson
- first_name: Shitou
full_name: Xia, Shitou
last_name: Xia
- first_name: Xiaoqi
full_name: Feng, Xiaoqi
id: e0164712-22ee-11ed-b12a-d80fcdf35958
last_name: Feng
orcid: 0000-0002-4008-1234
- first_name: Xin
full_name: Li, Xin
last_name: Li
citation:
ama: Johnson KCM, Xia S, Feng X, Li X. The chromatin remodeler SPLAYED negatively
regulates SNC1-mediated immunity. Plant and Cell Physiology. 2015;56(8):1616-1623.
doi:10.1093/pcp/pcv087
apa: Johnson, K. C. M., Xia, S., Feng, X., & Li, X. (2015). The chromatin remodeler
SPLAYED negatively regulates SNC1-mediated immunity. Plant and Cell Physiology.
Oxford University Press. https://doi.org/10.1093/pcp/pcv087
chicago: Johnson, Kaeli C.M., Shitou Xia, Xiaoqi Feng, and Xin Li. “The Chromatin
Remodeler SPLAYED Negatively Regulates SNC1-Mediated Immunity.” Plant and Cell
Physiology. Oxford University Press, 2015. https://doi.org/10.1093/pcp/pcv087.
ieee: K. C. M. Johnson, S. Xia, X. Feng, and X. Li, “The chromatin remodeler SPLAYED
negatively regulates SNC1-mediated immunity,” Plant and Cell Physiology,
vol. 56, no. 8. Oxford University Press, pp. 1616–1623, 2015.
ista: Johnson KCM, Xia S, Feng X, Li X. 2015. The chromatin remodeler SPLAYED negatively
regulates SNC1-mediated immunity. Plant and Cell Physiology. 56(8), 1616–1623.
mla: Johnson, Kaeli C. M., et al. “The Chromatin Remodeler SPLAYED Negatively Regulates
SNC1-Mediated Immunity.” Plant and Cell Physiology, vol. 56, no. 8, Oxford
University Press, 2015, pp. 1616–23, doi:10.1093/pcp/pcv087.
short: K.C.M. Johnson, S. Xia, X. Feng, X. Li, Plant and Cell Physiology 56 (2015)
1616–1623.
date_created: 2023-01-16T09:20:22Z
date_published: 2015-08-01T00:00:00Z
date_updated: 2023-05-08T11:03:23Z
department:
- _id: XiFe
doi: 10.1093/pcp/pcv087
extern: '1'
external_id:
pmid:
- '26063389'
intvolume: ' 56'
issue: '8'
keyword:
- Cell Biology
- Plant Science
- Physiology
- General Medicine
language:
- iso: eng
month: '08'
oa_version: None
page: 1616-1623
pmid: 1
publication: Plant and Cell Physiology
publication_identifier:
issn:
- 0032-0781
- 1471-9053
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: The chromatin remodeler SPLAYED negatively regulates SNC1-mediated immunity
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 56
year: '2015'
...
---
_id: '12626'
abstract:
- lang: eng
text: Ice cliffs have been identified as a reason for higher ablation rates on debris-covered
glaciers than are implied by the insulation effects of the debris. This study
aims to improve our understanding of cliff backwasting, and the role of radiative
fluxes in particular. An energy-balance model is forced with new data gathered
in May and October 2013 on Lirung Glacier, Nepalese Himalaya. Observations show
substantial variability in melt between cliffs, between locations on any cliff
and between seasons. Using a high-resolution digital elevation model we calculate
longwave fluxes incident to the cliff from surrounding terrain and include the
effect of local shading on shortwave radiation. This is an advance over previous
studies, that made simplified assumptions on cliff geometry and radiative fluxes.
Measured melt rates varied between 3.25 and 8.6 cm d−1 in May and 0.18 and 1.34
cm d−1 in October. Model results reproduce the strong variability in space and
time, suggesting considerable differences in radiative fluxes over one cliff.
In October the model fails to reproduce stake readings, probably due to the lack
of a refreezing component. Disregarding local topography can lead to overestimation
of melt at the point scale by up to ∼9%.
article_processing_charge: No
article_type: original
author:
- first_name: Jakob F.
full_name: Steiner, Jakob F.
last_name: Steiner
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
- first_name: Pascal
full_name: Buri, Pascal
last_name: Buri
- first_name: Evan S.
full_name: Miles, Evan S.
last_name: Miles
- first_name: Walter W.
full_name: Immerzeel, Walter W.
last_name: Immerzeel
- first_name: Tim D.
full_name: Reid, Tim D.
last_name: Reid
citation:
ama: Steiner JF, Pellicciotti F, Buri P, Miles ES, Immerzeel WW, Reid TD. Modelling
ice-cliff backwasting on a debris-covered glacier in the Nepalese Himalaya. Journal
of Glaciology. 2015;61(229):889-907. doi:10.3189/2015jog14j194
apa: Steiner, J. F., Pellicciotti, F., Buri, P., Miles, E. S., Immerzeel, W. W.,
& Reid, T. D. (2015). Modelling ice-cliff backwasting on a debris-covered
glacier in the Nepalese Himalaya. Journal of Glaciology. International
Glaciological Society. https://doi.org/10.3189/2015jog14j194
chicago: Steiner, Jakob F., Francesca Pellicciotti, Pascal Buri, Evan S. Miles,
Walter W. Immerzeel, and Tim D. Reid. “Modelling Ice-Cliff Backwasting on a Debris-Covered
Glacier in the Nepalese Himalaya.” Journal of Glaciology. International
Glaciological Society, 2015. https://doi.org/10.3189/2015jog14j194.
ieee: J. F. Steiner, F. Pellicciotti, P. Buri, E. S. Miles, W. W. Immerzeel, and
T. D. Reid, “Modelling ice-cliff backwasting on a debris-covered glacier in the
Nepalese Himalaya,” Journal of Glaciology, vol. 61, no. 229. International
Glaciological Society, pp. 889–907, 2015.
ista: Steiner JF, Pellicciotti F, Buri P, Miles ES, Immerzeel WW, Reid TD. 2015.
Modelling ice-cliff backwasting on a debris-covered glacier in the Nepalese Himalaya.
Journal of Glaciology. 61(229), 889–907.
mla: Steiner, Jakob F., et al. “Modelling Ice-Cliff Backwasting on a Debris-Covered
Glacier in the Nepalese Himalaya.” Journal of Glaciology, vol. 61, no.
229, International Glaciological Society, 2015, pp. 889–907, doi:10.3189/2015jog14j194.
short: J.F. Steiner, F. Pellicciotti, P. Buri, E.S. Miles, W.W. Immerzeel, T.D.
Reid, Journal of Glaciology 61 (2015) 889–907.
date_created: 2023-02-20T08:16:01Z
date_published: 2015-07-01T00:00:00Z
date_updated: 2023-02-24T09:43:14Z
day: '01'
doi: 10.3189/2015jog14j194
extern: '1'
intvolume: ' 61'
issue: '229'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.3189/2015JoG14J194
month: '07'
oa: 1
oa_version: Published Version
page: 889-907
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: Modelling ice-cliff backwasting on a debris-covered glacier in the Nepalese
Himalaya
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 61
year: '2015'
...
---
_id: '12627'
abstract:
- lang: eng
text: Spatial evolution of supraglacial debris cover on mountain glaciers is a largely
unmonitored and poorly understood phenomenon that directly affects glacier melt.
Supraglacial debris cover for 93 glaciers in the Karakoram, northern Pakistan,
was mapped from Landsat imagery acquired in 1977, 1998, 2009 and 2014. Surge-type
glaciers occupy 41% of the study area and were considered separately. The time
series of debris-covered surface area change shows a mean value of zero or near-zero
change for both surging and non-surging glaciers. An increase in debris-covered
area is often associated with negative regional mass balances. We extend this
logic to suggest that the stable regional mass balances in the Karakoram explain
the zero or near-zero change in debris-covered area. This coupling of trends combined
with our 37 year time series of data suggests the Karakoram anomaly extends further
back in time than previously known.
article_processing_charge: No
article_type: original
author:
- first_name: Sam
full_name: Herreid, Sam
last_name: Herreid
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
- first_name: Alvaro
full_name: Ayala, Alvaro
last_name: Ayala
- first_name: Anna
full_name: Chesnokova, Anna
last_name: Chesnokova
- first_name: Christian
full_name: Kienholz, Christian
last_name: Kienholz
- first_name: Joseph
full_name: Shea, Joseph
last_name: Shea
- first_name: Arun
full_name: Shrestha, Arun
last_name: Shrestha
citation:
ama: Herreid S, Pellicciotti F, Ayala A, et al. Satellite observations show no net
change in the percentage of supraglacial debris-covered area in northern Pakistan
from 1977 to 2014. Journal of Glaciology. 2015;61(227):524-536. doi:10.3189/2015jog14j227
apa: Herreid, S., Pellicciotti, F., Ayala, A., Chesnokova, A., Kienholz, C., Shea,
J., & Shrestha, A. (2015). Satellite observations show no net change in the
percentage of supraglacial debris-covered area in northern Pakistan from 1977
to 2014. Journal of Glaciology. International Glaciological Society. https://doi.org/10.3189/2015jog14j227
chicago: Herreid, Sam, Francesca Pellicciotti, Alvaro Ayala, Anna Chesnokova, Christian
Kienholz, Joseph Shea, and Arun Shrestha. “Satellite Observations Show No Net
Change in the Percentage of Supraglacial Debris-Covered Area in Northern Pakistan
from 1977 to 2014.” Journal of Glaciology. International Glaciological
Society, 2015. https://doi.org/10.3189/2015jog14j227.
ieee: S. Herreid et al., “Satellite observations show no net change in the
percentage of supraglacial debris-covered area in northern Pakistan from 1977
to 2014,” Journal of Glaciology, vol. 61, no. 227. International Glaciological
Society, pp. 524–536, 2015.
ista: Herreid S, Pellicciotti F, Ayala A, Chesnokova A, Kienholz C, Shea J, Shrestha
A. 2015. Satellite observations show no net change in the percentage of supraglacial
debris-covered area in northern Pakistan from 1977 to 2014. Journal of Glaciology.
61(227), 524–536.
mla: Herreid, Sam, et al. “Satellite Observations Show No Net Change in the Percentage
of Supraglacial Debris-Covered Area in Northern Pakistan from 1977 to 2014.” Journal
of Glaciology, vol. 61, no. 227, International Glaciological Society, 2015,
pp. 524–36, doi:10.3189/2015jog14j227.
short: S. Herreid, F. Pellicciotti, A. Ayala, A. Chesnokova, C. Kienholz, J. Shea,
A. Shrestha, Journal of Glaciology 61 (2015) 524–536.
date_created: 2023-02-20T08:16:06Z
date_published: 2015-05-01T00:00:00Z
date_updated: 2023-02-24T09:40:30Z
day: '01'
doi: 10.3189/2015jog14j227
extern: '1'
intvolume: ' 61'
issue: '227'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.3189/2015JoG14J227
month: '05'
oa: 1
oa_version: Published Version
page: 524-536
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: Satellite observations show no net change in the percentage of supraglacial
debris-covered area in northern Pakistan from 1977 to 2014
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 61
year: '2015'
...
---
_id: '12628'
abstract:
- lang: eng
text: Thick debris cover on glaciers can significantly reduce ice melt. However,
several studies have suggested that debris-covered glaciers in the Himalaya might
have lost mass at a rate similar to debris-free glaciers. We reconstruct elevation
and mass changes for the debris-covered glaciers of the upper Langtang valley,
Nepalese Himalaya, using a digital elevation model (DEM) from 1974 stereo Hexagon
satellite data and the 2000 SRTM (Shuttle Radar Topography Mission) DEM. Uncertainties
are high in the accumulation areas, due to data gaps in the SRTM and difficulties
with delineation of the glacier borders. Even with these uncertainties, we obtain
thinning rates comparable to those of several other studies in the Himalaya. In
particular, we obtain a total mass balance for the investigated debris-covered
glaciers of the basin of –0.32 ± 0.18 m w.e. a−1. However,
there are major spatial differences both between glaciers and within any single
glacier, exhibiting a very distinct nonlinear mass-balance profile with elevation.
Through analysis of surface velocities derived from Landsat ETM+ imagery, we show
that thinning occurs in areas of low velocity and low slope. These areas are prone
to a general, dynamic decay of surface features and to the development of supraglacial
lakes and ice cliffs, which may be responsible for a considerable increase in
overall glacier ablation.
article_processing_charge: No
article_type: original
author:
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
- first_name: Christa
full_name: Stephan, Christa
last_name: Stephan
- first_name: Evan
full_name: Miles, Evan
last_name: Miles
- first_name: Sam
full_name: Herreid, Sam
last_name: Herreid
- first_name: Walter W.
full_name: Immerzeel, Walter W.
last_name: Immerzeel
- first_name: Tobias
full_name: Bolch, Tobias
last_name: Bolch
citation:
ama: Pellicciotti F, Stephan C, Miles E, Herreid S, Immerzeel WW, Bolch T. Mass-balance
changes of the debris-covered glaciers in the Langtang Himal, Nepal, from 1974
to 1999. Journal of Glaciology. 2015;61(226):373-386. doi:10.3189/2015jog13j237
apa: Pellicciotti, F., Stephan, C., Miles, E., Herreid, S., Immerzeel, W. W., &
Bolch, T. (2015). Mass-balance changes of the debris-covered glaciers in the Langtang
Himal, Nepal, from 1974 to 1999. Journal of Glaciology. International Glaciological
Society. https://doi.org/10.3189/2015jog13j237
chicago: Pellicciotti, Francesca, Christa Stephan, Evan Miles, Sam Herreid, Walter
W. Immerzeel, and Tobias Bolch. “Mass-Balance Changes of the Debris-Covered Glaciers
in the Langtang Himal, Nepal, from 1974 to 1999.” Journal of Glaciology.
International Glaciological Society, 2015. https://doi.org/10.3189/2015jog13j237.
ieee: F. Pellicciotti, C. Stephan, E. Miles, S. Herreid, W. W. Immerzeel, and T.
Bolch, “Mass-balance changes of the debris-covered glaciers in the Langtang Himal,
Nepal, from 1974 to 1999,” Journal of Glaciology, vol. 61, no. 226. International
Glaciological Society, pp. 373–386, 2015.
ista: Pellicciotti F, Stephan C, Miles E, Herreid S, Immerzeel WW, Bolch T. 2015.
Mass-balance changes of the debris-covered glaciers in the Langtang Himal, Nepal,
from 1974 to 1999. Journal of Glaciology. 61(226), 373–386.
mla: Pellicciotti, Francesca, et al. “Mass-Balance Changes of the Debris-Covered
Glaciers in the Langtang Himal, Nepal, from 1974 to 1999.” Journal of Glaciology,
vol. 61, no. 226, International Glaciological Society, 2015, pp. 373–86, doi:10.3189/2015jog13j237.
short: F. Pellicciotti, C. Stephan, E. Miles, S. Herreid, W.W. Immerzeel, T. Bolch,
Journal of Glaciology 61 (2015) 373–386.
date_created: 2023-02-20T08:16:11Z
date_published: 2015-03-01T00:00:00Z
date_updated: 2023-02-24T09:35:21Z
day: '01'
doi: 10.3189/2015jog13j237
extern: '1'
intvolume: ' 61'
issue: '226'
keyword:
- Earth-Surface Processes
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.3189/2015JoG13J237
month: '03'
oa: 1
oa_version: Published Version
page: 373-386
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: Mass-balance changes of the debris-covered glaciers in the Langtang Himal,
Nepal, from 1974 to 1999
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 61
year: '2015'
...
---
_id: '12629'
abstract:
- lang: eng
text: Meteorological studies in high-mountain environments form the basis of our
understanding of catchment hydrology and glacier accumulation and melt processes,
yet high-altitude (>4000 m above sea level, asl) observatories are rare. This
research presents meteorological data recorded between December 2012 and November
2013 at seven stations in Nepal, ranging in elevation from 3860 to 5360 m asl.
Seasonal and diurnal cycles in air temperature, vapour pressure, incoming short-wave
and long-wave radiation, atmospheric transmissivity, wind speed, and precipitation
are compared between sites. Solar radiation strongly affects diurnal temperature
and vapour pressure cycles, but local topography and valley-scale circulations
alter wind speed and precipitation cycles. The observed diurnal variability in
vertical temperature gradients in all seasons highlights the importance of in
situ measurements for melt modelling. The monsoon signal (progressive onset and
sharp end) is visible in all data-sets, and the passage of the remnants of Typhoon
Phailin in mid-October 2013 provides an interesting case study on the possible
effects of such storms on glaciers in the region.
article_processing_charge: No
article_type: original
author:
- first_name: J.M.
full_name: Shea, J.M.
last_name: Shea
- first_name: P.
full_name: Wagnon, P.
last_name: Wagnon
- first_name: W.W.
full_name: Immerzeel, W.W.
last_name: Immerzeel
- first_name: R.
full_name: Biron, R.
last_name: Biron
- first_name: F.
full_name: Brun, F.
last_name: Brun
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
citation:
ama: Shea JM, Wagnon P, Immerzeel WW, Biron R, Brun F, Pellicciotti F. A comparative
high-altitude meteorological analysis from three catchments in the Nepalese Himalaya.
International Journal of Water Resources Development. 2015;31(2):174-200.
doi:10.1080/07900627.2015.1020417
apa: Shea, J. M., Wagnon, P., Immerzeel, W. W., Biron, R., Brun, F., & Pellicciotti,
F. (2015). A comparative high-altitude meteorological analysis from three catchments
in the Nepalese Himalaya. International Journal of Water Resources Development.
Taylor & Francis. https://doi.org/10.1080/07900627.2015.1020417
chicago: Shea, J.M., P. Wagnon, W.W. Immerzeel, R. Biron, F. Brun, and Francesca
Pellicciotti. “A Comparative High-Altitude Meteorological Analysis from Three
Catchments in the Nepalese Himalaya.” International Journal of Water Resources
Development. Taylor & Francis, 2015. https://doi.org/10.1080/07900627.2015.1020417.
ieee: J. M. Shea, P. Wagnon, W. W. Immerzeel, R. Biron, F. Brun, and F. Pellicciotti,
“A comparative high-altitude meteorological analysis from three catchments in
the Nepalese Himalaya,” International Journal of Water Resources Development,
vol. 31, no. 2. Taylor & Francis, pp. 174–200, 2015.
ista: Shea JM, Wagnon P, Immerzeel WW, Biron R, Brun F, Pellicciotti F. 2015. A
comparative high-altitude meteorological analysis from three catchments in the
Nepalese Himalaya. International Journal of Water Resources Development. 31(2),
174–200.
mla: Shea, J. M., et al. “A Comparative High-Altitude Meteorological Analysis from
Three Catchments in the Nepalese Himalaya.” International Journal of Water
Resources Development, vol. 31, no. 2, Taylor & Francis, 2015, pp. 174–200,
doi:10.1080/07900627.2015.1020417.
short: J.M. Shea, P. Wagnon, W.W. Immerzeel, R. Biron, F. Brun, F. Pellicciotti,
International Journal of Water Resources Development 31 (2015) 174–200.
date_created: 2023-02-20T08:16:17Z
date_published: 2015-04-18T00:00:00Z
date_updated: 2023-02-24T09:30:42Z
day: '18'
doi: 10.1080/07900627.2015.1020417
extern: '1'
intvolume: ' 31'
issue: '2'
keyword:
- Water Science and Technology
- Development
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1080/07900627.2015.1020417
month: '04'
oa: 1
oa_version: Published Version
page: 174-200
publication: International Journal of Water Resources Development
publication_identifier:
eissn:
- 1360-0648
issn:
- 0790-0627
publication_status: published
publisher: Taylor & Francis
quality_controlled: '1'
scopus_import: '1'
status: public
title: A comparative high-altitude meteorological analysis from three catchments in
the Nepalese Himalaya
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 31
year: '2015'
...
---
_id: '12630'
abstract:
- lang: eng
text: "The hydrology of high-elevation watersheds of the Hindu Kush-Himalaya region
(HKH) is poorly known. The correct representation of internal states and process
dynamics in glacio-hydrological models can often not be verified due to missing
in situ measurements. We use a new set of detailed ground data from the upper
Langtang valley in Nepal to systematically guide a state-of-the art glacio-hydrological
model through a parameter assigning process with the aim to understand the hydrology
of the catchment and contribution of snow and ice processes to runoff. 14 parameters
are directly calculated on the basis of local data, and 13 parameters are calibrated
against 5 different datasets of in situ or remote sensing data. Spatial fields
of debris thickness are reconstructed through a novel approach that employs data
from an Unmanned Aerial Vehicle (UAV), energy balance modeling and statistical
techniques. The model is validated against measured catchment runoff (Nash–Sutcliffe
efficiency 0.87) and modeled snow cover is compared to Landsat snow cover. The
advanced representation of processes allowed assessing the role played by avalanching
for runoff for the first time for a Himalayan catchment (5% of annual water inputs
to the hydrological system are due to snow redistribution) and to quantify the
hydrological significance of sub-debris ice melt (9% of annual water inputs).
Snowmelt is the most important contributor to total runoff during the hydrological
year 2012/2013 (representing 40% of all sources), followed by rainfall (34%) and
ice melt (26%). A sensitivity analysis is used to assess the efficiency of the
monitoring network and identify the timing and location of field measurements
that constrain model uncertainty. The methodology to set up a glacio-hydrological
model in high-elevation regions presented in this study can be regarded as a benchmark
for modelers in the HKH seeking to evaluate their calibration approach, their
experimental setup and thus to reduce the predictive model uncertainty.\r\n\r\n"
article_processing_charge: No
article_type: original
author:
- 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
- first_name: W.W.
full_name: Immerzeel, W.W.
last_name: Immerzeel
- first_name: E.S.
full_name: Miles, E.S.
last_name: Miles
- first_name: L.
full_name: Petersen, L.
last_name: Petersen
- first_name: M.
full_name: Heynen, M.
last_name: Heynen
- first_name: J.M.
full_name: Shea, J.M.
last_name: Shea
- first_name: D.
full_name: Stumm, D.
last_name: Stumm
- first_name: S.
full_name: Joshi, S.
last_name: Joshi
- first_name: A.
full_name: Shrestha, A.
last_name: Shrestha
citation:
ama: Ragettli S, Pellicciotti F, Immerzeel WW, et al. Unraveling the hydrology of
a Himalayan catchment through integration of high resolution in situ data and
remote sensing with an advanced simulation model. Advances in Water Resources.
2015;78(4):94-111. doi:10.1016/j.advwatres.2015.01.013
apa: Ragettli, S., Pellicciotti, F., Immerzeel, W. W., Miles, E. S., Petersen, L.,
Heynen, M., … Shrestha, A. (2015). Unraveling the hydrology of a Himalayan catchment
through integration of high resolution in situ data and remote sensing with an
advanced simulation model. Advances in Water Resources. Elsevier. https://doi.org/10.1016/j.advwatres.2015.01.013
chicago: Ragettli, S., Francesca Pellicciotti, W.W. Immerzeel, E.S. Miles, L. Petersen,
M. Heynen, J.M. Shea, D. Stumm, S. Joshi, and A. Shrestha. “Unraveling the Hydrology
of a Himalayan Catchment through Integration of High Resolution in Situ Data and
Remote Sensing with an Advanced Simulation Model.” Advances in Water Resources.
Elsevier, 2015. https://doi.org/10.1016/j.advwatres.2015.01.013.
ieee: S. Ragettli et al., “Unraveling the hydrology of a Himalayan catchment
through integration of high resolution in situ data and remote sensing with an
advanced simulation model,” Advances in Water Resources, vol. 78, no. 4.
Elsevier, pp. 94–111, 2015.
ista: Ragettli S, Pellicciotti F, Immerzeel WW, Miles ES, Petersen L, Heynen M,
Shea JM, Stumm D, Joshi S, Shrestha A. 2015. Unraveling the hydrology of a Himalayan
catchment through integration of high resolution in situ data and remote sensing
with an advanced simulation model. Advances in Water Resources. 78(4), 94–111.
mla: Ragettli, S., et al. “Unraveling the Hydrology of a Himalayan Catchment through
Integration of High Resolution in Situ Data and Remote Sensing with an Advanced
Simulation Model.” Advances in Water Resources, vol. 78, no. 4, Elsevier,
2015, pp. 94–111, doi:10.1016/j.advwatres.2015.01.013.
short: S. Ragettli, F. Pellicciotti, W.W. Immerzeel, E.S. Miles, L. Petersen, M.
Heynen, J.M. Shea, D. Stumm, S. Joshi, A. Shrestha, Advances in Water Resources
78 (2015) 94–111.
date_created: 2023-02-20T08:16:21Z
date_published: 2015-04-01T00:00:00Z
date_updated: 2023-02-24T09:28:04Z
day: '01'
doi: 10.1016/j.advwatres.2015.01.013
extern: '1'
intvolume: ' 78'
issue: '4'
keyword:
- Water Science and Technology
language:
- iso: eng
month: '04'
oa_version: None
page: 94-111
publication: Advances in Water Resources
publication_identifier:
issn:
- 0309-1708
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Unraveling the hydrology of a Himalayan catchment through integration of high
resolution in situ data and remote sensing with an advanced simulation model
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 78
year: '2015'
...
---
_id: '12631'
abstract:
- lang: eng
text: Air temperature is one of the most relevant input variables for snow and ice
melt calculations. However, local meteorological conditions, complex topography,
and logistical concerns in glacierized regions make the measuring and modeling
of air temperature a difficult task. In this study, we investigate the spatial
distribution of 2 m air temperature over mountain glaciers and propose a modification
to an existing model to improve its representation. Spatially distributed meteorological
data from Haut Glacier d'Arolla (Switzerland), Place (Canada), and Juncal Norte
(Chile) Glaciers are used to examine approximate flow line temperatures during
their respective ablation seasons. During warm conditions (off-glacier temperatures
well above 0°C), observed air temperatures in the upper reaches of Place Glacier
and Haut Glacier d'Arolla decrease down glacier along the approximate flow line.
At Juncal Norte and Haut Glacier d'Arolla, an increase in air temperature is observed
over the glacier tongue. While the temperature behavior over the upper part can
be explained by the cooling effect of the glacier surface, the temperature increase
over the glacier tongue may be caused by several processes induced by the surrounding
warm atmosphere. In order to capture the latter effect, we add an additional term
to the Greuell and Böhm (GB) thermodynamic glacier wind model. For high off-glacier
temperatures, the modified GB model reduces root-mean-square error up to 32% and
provides a new approach for distributing air temperature over mountain glaciers
as a function of off-glacier temperatures and approximate glacier flow lines.
article_processing_charge: No
article_type: original
author:
- first_name: A.
full_name: Ayala, A.
last_name: Ayala
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
- first_name: J. M.
full_name: Shea, J. M.
last_name: Shea
citation:
ama: 'Ayala A, Pellicciotti F, Shea JM. Modeling 2 m air temperatures over mountain
glaciers: Exploring the influence of katabatic cooling and external warming. Journal
of Geophysical Research: Atmospheres. 2015;120(8):3139-3157. doi:10.1002/2015jd023137'
apa: 'Ayala, A., Pellicciotti, F., & Shea, J. M. (2015). Modeling 2 m air temperatures
over mountain glaciers: Exploring the influence of katabatic cooling and external
warming. Journal of Geophysical Research: Atmospheres. American Geophysical
Union. https://doi.org/10.1002/2015jd023137'
chicago: 'Ayala, A., Francesca Pellicciotti, and J. M. Shea. “Modeling 2 m Air Temperatures
over Mountain Glaciers: Exploring the Influence of Katabatic Cooling and External
Warming.” Journal of Geophysical Research: Atmospheres. American Geophysical
Union, 2015. https://doi.org/10.1002/2015jd023137.'
ieee: 'A. Ayala, F. Pellicciotti, and J. M. Shea, “Modeling 2 m air temperatures
over mountain glaciers: Exploring the influence of katabatic cooling and external
warming,” Journal of Geophysical Research: Atmospheres, vol. 120, no. 8.
American Geophysical Union, pp. 3139–3157, 2015.'
ista: 'Ayala A, Pellicciotti F, Shea JM. 2015. Modeling 2 m air temperatures over
mountain glaciers: Exploring the influence of katabatic cooling and external warming.
Journal of Geophysical Research: Atmospheres. 120(8), 3139–3157.'
mla: 'Ayala, A., et al. “Modeling 2 m Air Temperatures over Mountain Glaciers: Exploring
the Influence of Katabatic Cooling and External Warming.” Journal of Geophysical
Research: Atmospheres, vol. 120, no. 8, American Geophysical Union, 2015,
pp. 3139–57, doi:10.1002/2015jd023137.'
short: 'A. Ayala, F. Pellicciotti, J.M. Shea, Journal of Geophysical Research: Atmospheres
120 (2015) 3139–3157.'
date_created: 2023-02-20T08:16:28Z
date_published: 2015-04-18T00:00:00Z
date_updated: 2023-02-24T09:16:26Z
day: '18'
doi: 10.1002/2015jd023137
extern: '1'
intvolume: ' 120'
issue: '8'
keyword:
- Space and Planetary Science
- Earth and Planetary Sciences (miscellaneous)
- Atmospheric Science
- Geophysics
language:
- iso: eng
month: '04'
oa_version: Published Version
page: 3139-3157
publication: 'Journal of Geophysical Research: Atmospheres'
publication_identifier:
eissn:
- 2169-8996
issn:
- 2169-897X
publication_status: published
publisher: American Geophysical Union
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Modeling 2 m air temperatures over mountain glaciers: Exploring the influence
of katabatic cooling and external warming'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 120
year: '2015'
...
---
_id: '12881'
acknowledgement: This work was supported by the DFG (SPP 1527) and the EU (FP7, REA
grant no 291734).
article_processing_charge: No
author:
- first_name: Georg S
full_name: Martius, Georg S
id: 3A276B68-F248-11E8-B48F-1D18A9856A87
last_name: Martius
- first_name: Eckehard
full_name: Olbrich, Eckehard
last_name: Olbrich
citation:
ama: 'Martius GS, Olbrich E. Quantifying self-organizing behavior of autonomous
robots. In: Proceedings of the 13th European Conference on Artificial Life.
MIT Press; 2015:78. doi:10.7551/978-0-262-33027-5-ch018'
apa: 'Martius, G. S., & Olbrich, E. (2015). Quantifying self-organizing behavior
of autonomous robots. In Proceedings of the 13th European Conference on Artificial
Life (p. 78). York, United Kingdom: MIT Press. https://doi.org/10.7551/978-0-262-33027-5-ch018'
chicago: Martius, Georg S, and Eckehard Olbrich. “Quantifying Self-Organizing Behavior
of Autonomous Robots.” In Proceedings of the 13th European Conference on Artificial
Life, 78. MIT Press, 2015. https://doi.org/10.7551/978-0-262-33027-5-ch018.
ieee: G. S. Martius and E. Olbrich, “Quantifying self-organizing behavior of autonomous
robots,” in Proceedings of the 13th European Conference on Artificial Life,
York, United Kingdom, 2015, p. 78.
ista: 'Martius GS, Olbrich E. 2015. Quantifying self-organizing behavior of autonomous
robots. Proceedings of the 13th European Conference on Artificial Life. ECAL:
European Conference on Artificial Life, 78.'
mla: Martius, Georg S., and Eckehard Olbrich. “Quantifying Self-Organizing Behavior
of Autonomous Robots.” Proceedings of the 13th European Conference on Artificial
Life, MIT Press, 2015, p. 78, doi:10.7551/978-0-262-33027-5-ch018.
short: G.S. Martius, E. Olbrich, in:, Proceedings of the 13th European Conference
on Artificial Life, MIT Press, 2015, p. 78.
conference:
end_date: 2015-07-24
location: York, United Kingdom
name: 'ECAL: European Conference on Artificial Life'
start_date: 2015-07-20
date_created: 2023-04-30T22:01:07Z
date_published: 2015-07-01T00:00:00Z
date_updated: 2023-05-02T07:06:21Z
day: '01'
ddc:
- '000'
department:
- _id: ChLa
doi: 10.7551/978-0-262-33027-5-ch018
ec_funded: 1
file:
- access_level: open_access
checksum: 880eabe59c9df12f06a882aa1bc4e600
content_type: application/pdf
creator: dernst
date_created: 2023-05-02T07:02:59Z
date_updated: 2023-05-02T07:02:59Z
file_id: '12882'
file_name: 2015_ECAL_Martius.pdf
file_size: 1674241
relation: main_file
success: 1
file_date_updated: 2023-05-02T07:02:59Z
has_accepted_license: '1'
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
month: '07'
oa: 1
oa_version: Published Version
page: '78'
project:
- _id: 25681D80-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '291734'
name: International IST Postdoc Fellowship Programme
publication: Proceedings of the 13th European Conference on Artificial Life
publication_identifier:
isbn:
- '9780262330275'
publication_status: published
publisher: MIT Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Quantifying self-organizing behavior of autonomous robots
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
year: '2015'
...
---
_id: '1311'
abstract:
- lang: eng
text: In this paper, we develop an energy method to study finite speed of propagation
and waiting time phenomena for the stochastic porous media equation with linear
multiplicative noise in up to three spatial dimensions. Based on a novel iteration
technique and on stochastic counterparts of weighted integral estimates used in
the deterministic setting, we formulate a sufficient criterion on the growth of
initial data which locally guarantees a waiting time phenomenon to occur almost
surely. Up to a logarithmic factor, this criterion coincides with the optimal
criterion known from the deterministic setting. Our technique can be modified
to prove finite speed of propagation as well.
acknowledgement: The first author has been supported by the Lithuanian-Swiss co- operation
program under the project agreement No. CH-SMM-01/0.
author:
- first_name: Julian L
full_name: Julian Fischer
id: 2C12A0B0-F248-11E8-B48F-1D18A9856A87
last_name: Fischer
orcid: 0000-0002-0479-558X
- first_name: Günther
full_name: Grün, Günther
last_name: Grün
citation:
ama: 'Fischer JL, Grün G. Finite speed of propagation and waiting times for the
stochastic porous medium equation: A unifying approach. SIAM Journal on Mathematical
Analysis. 2015;47(1):825-854. doi:10.1137/140960578'
apa: 'Fischer, J. L., & Grün, G. (2015). Finite speed of propagation and waiting
times for the stochastic porous medium equation: A unifying approach. SIAM
Journal on Mathematical Analysis. Society for Industrial and Applied Mathematics
. https://doi.org/10.1137/140960578'
chicago: 'Fischer, Julian L, and Günther Grün. “Finite Speed of Propagation and
Waiting Times for the Stochastic Porous Medium Equation: A Unifying Approach.”
SIAM Journal on Mathematical Analysis. Society for Industrial and Applied
Mathematics , 2015. https://doi.org/10.1137/140960578.'
ieee: 'J. L. Fischer and G. Grün, “Finite speed of propagation and waiting times
for the stochastic porous medium equation: A unifying approach,” SIAM Journal
on Mathematical Analysis, vol. 47, no. 1. Society for Industrial and Applied
Mathematics , pp. 825–854, 2015.'
ista: 'Fischer JL, Grün G. 2015. Finite speed of propagation and waiting times for
the stochastic porous medium equation: A unifying approach. SIAM Journal on Mathematical
Analysis. 47(1), 825–854.'
mla: 'Fischer, Julian L., and Günther Grün. “Finite Speed of Propagation and Waiting
Times for the Stochastic Porous Medium Equation: A Unifying Approach.” SIAM
Journal on Mathematical Analysis, vol. 47, no. 1, Society for Industrial and
Applied Mathematics , 2015, pp. 825–54, doi:10.1137/140960578.'
short: J.L. Fischer, G. Grün, SIAM Journal on Mathematical Analysis 47 (2015) 825–854.
date_created: 2018-12-11T11:51:18Z
date_published: 2015-01-01T00:00:00Z
date_updated: 2021-01-12T06:49:48Z
day: '01'
doi: 10.1137/140960578
extern: 1
intvolume: ' 47'
issue: '1'
month: '01'
page: 825 - 854
publication: SIAM Journal on Mathematical Analysis
publication_status: published
publisher: 'Society for Industrial and Applied Mathematics '
publist_id: '5958'
quality_controlled: 0
status: public
title: 'Finite speed of propagation and waiting times for the stochastic porous medium
equation: A unifying approach'
type: journal_article
volume: 47
year: '2015'
...
---
_id: '1313'
abstract:
- lang: eng
text: We present an algorithm for the derivation of lower bounds on support propagation
for a certain class of nonlinear parabolic equations. We proceed by combining
the ideas in some recent papers by the author with the algorithmic construction
of entropies due to Jüngel and Matthes, reducing the problem to a quantifier elimination
problem. Due to its complexity, the quantifier elimination problem cannot be solved
by present exact algorithms. However, by tackling the quantifier elimination problem
numerically, in the case of the thin-film equation we are able to improve recent
results by the author in the regime of strong slippage n ∈ (1, 2). For certain
second-order doubly nonlinear parabolic equations, we are able to extend the known
lower bounds on free boundary propagation to the case of irregular oscillatory
initial data. Finally, we apply our method to a sixth-order quantum drift-diffusion
equation, resulting in an upper bound on the time which it takes for the support
to reach every point in the domain.
acknowledgement: This research was supported by the Lithuanian-Swiss cooperation program
under the project agreement No. CH-SMM-01/0.
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. Estimates on front propagation for nonlinear higher-order parabolic
equations: An algorithmic approach. Interfaces and Free Boundaries. 2015;17(1):1-20.
doi:10.4171/IFB/331'
apa: 'Fischer, J. L. (2015). Estimates on front propagation for nonlinear higher-order
parabolic equations: An algorithmic approach. Interfaces and Free Boundaries.
European Mathematical Society Publishing House. https://doi.org/10.4171/IFB/331'
chicago: 'Fischer, Julian L. “Estimates on Front Propagation for Nonlinear Higher-Order
Parabolic Equations: An Algorithmic Approach.” Interfaces and Free Boundaries.
European Mathematical Society Publishing House, 2015. https://doi.org/10.4171/IFB/331.'
ieee: 'J. L. Fischer, “Estimates on front propagation for nonlinear higher-order
parabolic equations: An algorithmic approach,” Interfaces and Free Boundaries,
vol. 17, no. 1. European Mathematical Society Publishing House, pp. 1–20, 2015.'
ista: 'Fischer JL. 2015. Estimates on front propagation for nonlinear higher-order
parabolic equations: An algorithmic approach. Interfaces and Free Boundaries.
17(1), 1–20.'
mla: 'Fischer, Julian L. “Estimates on Front Propagation for Nonlinear Higher-Order
Parabolic Equations: An Algorithmic Approach.” Interfaces and Free Boundaries,
vol. 17, no. 1, European Mathematical Society Publishing House, 2015, pp. 1–20,
doi:10.4171/IFB/331.'
short: J.L. Fischer, Interfaces and Free Boundaries 17 (2015) 1–20.
date_created: 2018-12-11T11:51:19Z
date_published: 2015-01-01T00:00:00Z
date_updated: 2021-01-12T06:49:48Z
day: '01'
doi: 10.4171/IFB/331
extern: 1
intvolume: ' 17'
issue: '1'
month: '01'
page: 1 - 20
publication: Interfaces and Free Boundaries
publication_status: published
publisher: European Mathematical Society Publishing House
publist_id: '5956'
quality_controlled: 0
status: public
title: 'Estimates on front propagation for nonlinear higher-order parabolic equations:
An algorithmic approach'
type: journal_article
volume: 17
year: '2015'
...
---
_id: '1314'
abstract:
- lang: eng
text: 'We derive a posteriori estimates for the modeling error caused by the assumption
of perfect incompressibility in the incompressible Navier-Stokes equation: Real
fluids are never perfectly incompressible but always feature at least some low
amount of compressibility. Thus, their behavior is described by the compressible
Navier-Stokes equation, the pressure being a steep function of the density. We
rigorously estimate the difference between an approximate solution to the incompressible
Navier-Stokes equation and any weak solution to the compressible Navier-Stokes
equation in the sense of Lions (without assuming any additional regularity of
solutions). Heuristics and numerical results suggest that our error estimates
are of optimal order in the case of "well-behaved" flows and divergence-free
approximations of the velocity field. Thus, we expect our estimates to justify
the idealization of fluids as perfectly incompressible also in practical situations.'
acknowledgement: The research of the author was supported by the Lithuanian-Swiss
cooperation program under the project agreement CH-SMM-01/0.
author:
- first_name: Julian L
full_name: Fischer, Julian L
id: 2C12A0B0-F248-11E8-B48F-1D18A9856A87
last_name: Fischer
orcid: 0000-0002-0479-558X
citation:
ama: Fischer JL. A posteriori modeling error estimates for the assumption of perfect
incompressibility in the Navier-Stokes equation. SIAM Journal on Numerical
Analysis. 2015;53(5):2178-2205. doi:10.1137/140966654
apa: Fischer, J. L. (2015). A posteriori modeling error estimates for the assumption
of perfect incompressibility in the Navier-Stokes equation. SIAM Journal on
Numerical Analysis. Society for Industrial and Applied Mathematics . https://doi.org/10.1137/140966654
chicago: Fischer, Julian L. “A Posteriori Modeling Error Estimates for the Assumption
of Perfect Incompressibility in the Navier-Stokes Equation.” SIAM Journal on
Numerical Analysis. Society for Industrial and Applied Mathematics , 2015.
https://doi.org/10.1137/140966654.
ieee: J. L. Fischer, “A posteriori modeling error estimates for the assumption of
perfect incompressibility in the Navier-Stokes equation,” SIAM Journal on Numerical
Analysis, vol. 53, no. 5. Society for Industrial and Applied Mathematics ,
pp. 2178–2205, 2015.
ista: Fischer JL. 2015. A posteriori modeling error estimates for the assumption
of perfect incompressibility in the Navier-Stokes equation. SIAM Journal on Numerical
Analysis. 53(5), 2178–2205.
mla: Fischer, Julian L. “A Posteriori Modeling Error Estimates for the Assumption
of Perfect Incompressibility in the Navier-Stokes Equation.” SIAM Journal on
Numerical Analysis, vol. 53, no. 5, Society for Industrial and Applied Mathematics
, 2015, pp. 2178–205, doi:10.1137/140966654.
short: J.L. Fischer, SIAM Journal on Numerical Analysis 53 (2015) 2178–2205.
date_created: 2018-12-11T11:51:19Z
date_published: 2015-01-01T00:00:00Z
date_updated: 2021-01-12T06:49:49Z
day: '01'
doi: 10.1137/140966654
extern: '1'
intvolume: ' 53'
issue: '5'
language:
- iso: eng
month: '01'
oa_version: None
page: 2178 - 2205
publication: SIAM Journal on Numerical Analysis
publication_status: published
publisher: 'Society for Industrial and Applied Mathematics '
publist_id: '5957'
quality_controlled: '1'
status: public
title: A posteriori modeling error estimates for the assumption of perfect incompressibility
in the Navier-Stokes equation
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 53
year: '2015'
...
---
_id: '1316'
abstract:
- lang: eng
text: In the present work we introduce the notion of a renormalized solution for
reaction–diffusion systems with entropy-dissipating reactions. We establish the
global existence of renormalized solutions. In the case of integrable reaction
terms our notion of a renormalized solution reduces to the usual notion of a weak
solution. Our existence result in particular covers all reaction–diffusion systems
involving a single reversible reaction with mass-action kinetics and (possibly
species-dependent) Fick-law diffusion; more generally, it covers the case of systems
of reversible reactions with mass-action kinetics which satisfy the detailed balance
condition. For such equations the existence of any kind of solution in general
was an open problem, thereby motivating the study of renormalized solutions.
acknowledgement: This research was supported by the Lithuanian-Swiss cooperation program
under the project agreement No. CH-SMM-01/0.
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. Global existence of renormalized solutions to entropy-dissipating
reaction–diffusion systems. Archive for Rational Mechanics and Analysis.
2015;218(1):553-587. doi:10.1007/s00205-015-0866-x
apa: Fischer, J. L. (2015). Global existence of renormalized solutions to entropy-dissipating
reaction–diffusion systems. Archive for Rational Mechanics and Analysis.
Springer. https://doi.org/10.1007/s00205-015-0866-x
chicago: Fischer, Julian L. “Global Existence of Renormalized Solutions to Entropy-Dissipating
Reaction–Diffusion Systems.” Archive for Rational Mechanics and Analysis.
Springer, 2015. https://doi.org/10.1007/s00205-015-0866-x.
ieee: J. L. Fischer, “Global existence of renormalized solutions to entropy-dissipating
reaction–diffusion systems,” Archive for Rational Mechanics and Analysis,
vol. 218, no. 1. Springer, pp. 553–587, 2015.
ista: Fischer JL. 2015. Global existence of renormalized solutions to entropy-dissipating
reaction–diffusion systems. Archive for Rational Mechanics and Analysis. 218(1),
553–587.
mla: Fischer, Julian L. “Global Existence of Renormalized Solutions to Entropy-Dissipating
Reaction–Diffusion Systems.” Archive for Rational Mechanics and Analysis,
vol. 218, no. 1, Springer, 2015, pp. 553–87, doi:10.1007/s00205-015-0866-x.
short: J.L. Fischer, Archive for Rational Mechanics and Analysis 218 (2015) 553–587.
date_created: 2018-12-11T11:51:20Z
date_published: 2015-10-01T00:00:00Z
date_updated: 2021-01-12T06:49:50Z
day: '01'
doi: 10.1007/s00205-015-0866-x
extern: 1
intvolume: ' 218'
issue: '1'
month: '10'
page: 553 - 587
publication: Archive for Rational Mechanics and Analysis
publication_status: published
publisher: Springer
publist_id: '5955'
quality_controlled: 0
status: public
title: Global existence of renormalized solutions to entropy-dissipating reaction–diffusion
systems
type: journal_article
volume: 218
year: '2015'
...
---
_id: '8242'
article_number: AB101
article_processing_charge: No
article_type: original
author:
- first_name: Lukas
full_name: Einhorn, Lukas
last_name: Einhorn
- first_name: Judit
full_name: Fazekas, Judit
id: 36432834-F248-11E8-B48F-1D18A9856A87
last_name: Fazekas
orcid: 0000-0002-8777-3502
- first_name: Martina
full_name: Muhr, Martina
last_name: Muhr
- first_name: Alexandra
full_name: Schoos, Alexandra
last_name: Schoos
- first_name: Kumiko
full_name: Oida, Kumiko
last_name: Oida
- first_name: Josef
full_name: Singer, Josef
last_name: Singer
- first_name: Lucia
full_name: Panakova, Lucia
last_name: Panakova
- first_name: Krisztina
full_name: Manzano-Szalai, Krisztina
last_name: Manzano-Szalai
- first_name: Erika
full_name: Jensen-Jarolim, Erika
last_name: Jensen-Jarolim
citation:
ama: Einhorn L, Singer J, Muhr M, et al. Generation of recombinant FcεRIα of dog,
cat and horse for component-resolved allergy diagnosis in veterinary patients.
Journal of Allergy and Clinical Immunology. 2015;135(2). doi:10.1016/j.jaci.2014.12.1263
apa: Einhorn, L., Singer, J., Muhr, M., Schoos, A., Oida, K., Singer, J., … Jensen-Jarolim,
E. (2015). Generation of recombinant FcεRIα of dog, cat and horse for component-resolved
allergy diagnosis in veterinary patients. Journal of Allergy and Clinical Immunology.
Elsevier. https://doi.org/10.1016/j.jaci.2014.12.1263
chicago: Einhorn, Lukas, Judit Singer, Martina Muhr, Alexandra Schoos, Kumiko Oida,
Josef Singer, Lucia Panakova, Krisztina Manzano-Szalai, and Erika Jensen-Jarolim.
“Generation of Recombinant FcεRIα of Dog, Cat and Horse for Component-Resolved
Allergy Diagnosis in Veterinary Patients.” Journal of Allergy and Clinical
Immunology. Elsevier, 2015. https://doi.org/10.1016/j.jaci.2014.12.1263.
ieee: L. Einhorn et al., “Generation of recombinant FcεRIα of dog, cat and
horse for component-resolved allergy diagnosis in veterinary patients,” Journal
of Allergy and Clinical Immunology, vol. 135, no. 2. Elsevier, 2015.
ista: Einhorn L, Singer J, Muhr M, Schoos A, Oida K, Singer J, Panakova L, Manzano-Szalai
K, Jensen-Jarolim E. 2015. Generation of recombinant FcεRIα of dog, cat and horse
for component-resolved allergy diagnosis in veterinary patients. Journal of Allergy
and Clinical Immunology. 135(2), AB101.
mla: Einhorn, Lukas, et al. “Generation of Recombinant FcεRIα of Dog, Cat and Horse
for Component-Resolved Allergy Diagnosis in Veterinary Patients.” Journal of
Allergy and Clinical Immunology, vol. 135, no. 2, AB101, Elsevier, 2015, doi:10.1016/j.jaci.2014.12.1263.
short: L. Einhorn, J. Singer, M. Muhr, A. Schoos, K. Oida, J. Singer, L. Panakova,
K. Manzano-Szalai, E. Jensen-Jarolim, Journal of Allergy and Clinical Immunology
135 (2015).
date_created: 2020-08-10T11:54:09Z
date_published: 2015-02-01T00:00:00Z
date_updated: 2021-01-12T08:17:42Z
day: '01'
doi: 10.1016/j.jaci.2014.12.1263
extern: '1'
intvolume: ' 135'
issue: '2'
language:
- iso: eng
month: '02'
oa_version: None
publication: Journal of Allergy and Clinical Immunology
publication_identifier:
issn:
- 0091-6749
publication_status: published
publisher: Elsevier
quality_controlled: '1'
status: public
title: Generation of recombinant FcεRIα of dog, cat and horse for component-resolved
allergy diagnosis in veterinary patients
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 135
year: '2015'
...
---
_id: '832'
abstract:
- lang: eng
text: Plants maintain capacity to form new organs such as leaves, flowers, lateral
shoots and roots throughout their postembryonic lifetime. Lateral roots (LRs)
originate from a few pericycle cells that acquire attributes of founder cells
(FCs), undergo series of anticlinal divisions, and give rise to a few short initial
cells. After initiation, coordinated cell division and differentiation occur,
giving rise to lateral root primordia (LRP). Primordia continue to grow, emerge
through the cortex and epidermal layers of the primary root, and finally a new
apical meristem is established taking over the responsibility for growth of mature
lateral roots [for detailed description of the individual stages of lateral root
organogenesis see Malamy and Benfey (1997)]. To examine this highly dynamic developmental
process and to investigate a role of various hormonal, genetic and environmental
factors in the regulation of lateral root organogenesis, the real time imaging
based analyses represent extremely powerful tools (Laskowski et al., 2008; De
Smet et al., 2012; Marhavy et al., 2013 and 2014). Herein, we describe a protocol
for real time lateral root primordia (LRP) analysis, which enables the monitoring
of an onset of the specific gene expression and subcellular protein localization
during primordia organogenesis, as well as the evaluation of the impact of genetic
and environmental perturbations on LRP organogenesis.
acknowledgement: "European Research Council with a Starting Independent Research grant:
ERC-2007-Stg-207362-HCPO, Czech Science Foundation: GA13-39982S\nWe thank Matyas
Fendrych for critical reading and comments. The protocol was developed based on
previously published work of De Rybel et al. (2010) and Laskowski et al. (2008). "
author:
- first_name: Peter
full_name: Peter Marhavy
id: 3F45B078-F248-11E8-B48F-1D18A9856A87
last_name: Marhavy
orcid: 0000-0001-5227-5741
- first_name: Eva
full_name: Eva Benková
id: 38F4F166-F248-11E8-B48F-1D18A9856A87
last_name: Benková
orcid: 0000-0002-8510-9739
citation:
ama: Marhavý P, Benková E. Real time analysis of lateral root organogenesis in arabidopsis.
Bio-protocol. 2015;5(8). doi:10.21769/BioProtoc.1446
apa: Marhavý, P., & Benková, E. (2015). Real time analysis of lateral root organogenesis
in arabidopsis. Bio-Protocol. Bio-protocol LLC. https://doi.org/10.21769/BioProtoc.1446
chicago: Marhavý, Peter, and Eva Benková. “Real Time Analysis of Lateral Root Organogenesis
in Arabidopsis.” Bio-Protocol. Bio-protocol LLC, 2015. https://doi.org/10.21769/BioProtoc.1446.
ieee: P. Marhavý and E. Benková, “Real time analysis of lateral root organogenesis
in arabidopsis,” Bio-protocol, vol. 5, no. 8. Bio-protocol LLC, 2015.
ista: Marhavý P, Benková E. 2015. Real time analysis of lateral root organogenesis
in arabidopsis. Bio-protocol. 5(8).
mla: Marhavý, Peter, and Eva Benková. “Real Time Analysis of Lateral Root Organogenesis
in Arabidopsis.” Bio-Protocol, vol. 5, no. 8, Bio-protocol LLC, 2015, doi:10.21769/BioProtoc.1446.
short: P. Marhavý, E. Benková, Bio-Protocol 5 (2015).
date_created: 2018-12-11T11:48:44Z
date_published: 2015-04-20T00:00:00Z
date_updated: 2021-01-12T08:18:07Z
day: '20'
doi: 10.21769/BioProtoc.1446
extern: 1
intvolume: ' 5'
issue: '8'
month: '04'
publication: Bio-protocol
publication_status: published
publisher: Bio-protocol LLC
publist_id: '6816'
quality_controlled: 0
status: public
title: Real time analysis of lateral root organogenesis in arabidopsis
type: journal_article
volume: 5
year: '2015'
...
---
_id: '8456'
abstract:
- lang: eng
text: The large majority of three-dimensional structures of biological macromolecules
have been determined by X-ray diffraction of crystalline samples. High-resolution
structure determination crucially depends on the homogeneity of the protein crystal.
Overall ‘rocking’ motion of molecules in the crystal is expected to influence
diffraction quality, and such motion may therefore affect the process of solving
crystal structures. Yet, so far overall molecular motion has not directly been
observed in protein crystals, and the timescale of such dynamics remains unclear.
Here we use solid-state NMR, X-ray diffraction methods and μs-long molecular dynamics
simulations to directly characterize the rigid-body motion of a protein in different
crystal forms. For ubiquitin crystals investigated in this study we determine
the range of possible correlation times of rocking motion, 0.1–100 μs. The amplitude
of rocking varies from one crystal form to another and is correlated with the
resolution obtainable in X-ray diffraction experiments.
article_number: '8361'
article_processing_charge: No
article_type: original
author:
- first_name: Peixiang
full_name: Ma, Peixiang
last_name: Ma
- first_name: Yi
full_name: Xue, Yi
last_name: Xue
- first_name: Nicolas
full_name: Coquelle, Nicolas
last_name: Coquelle
- first_name: Jens D.
full_name: Haller, Jens D.
last_name: Haller
- first_name: Tairan
full_name: Yuwen, Tairan
last_name: Yuwen
- first_name: Isabel
full_name: Ayala, Isabel
last_name: Ayala
- first_name: Oleg
full_name: Mikhailovskii, Oleg
last_name: Mikhailovskii
- first_name: Dieter
full_name: Willbold, Dieter
last_name: Willbold
- first_name: Jacques-Philippe
full_name: Colletier, Jacques-Philippe
last_name: Colletier
- first_name: Nikolai R.
full_name: Skrynnikov, Nikolai R.
last_name: Skrynnikov
- first_name: Paul
full_name: Schanda, Paul
id: 7B541462-FAF6-11E9-A490-E8DFE5697425
last_name: Schanda
orcid: 0000-0002-9350-7606
citation:
ama: Ma P, Xue Y, Coquelle N, et al. Observing the overall rocking motion of a protein
in a crystal. Nature Communications. 2015;6. doi:10.1038/ncomms9361
apa: Ma, P., Xue, Y., Coquelle, N., Haller, J. D., Yuwen, T., Ayala, I., … Schanda,
P. (2015). Observing the overall rocking motion of a protein in a crystal. Nature
Communications. Springer Nature. https://doi.org/10.1038/ncomms9361
chicago: Ma, Peixiang, Yi Xue, Nicolas Coquelle, Jens D. Haller, Tairan Yuwen, Isabel
Ayala, Oleg Mikhailovskii, et al. “Observing the Overall Rocking Motion of a Protein
in a Crystal.” Nature Communications. Springer Nature, 2015. https://doi.org/10.1038/ncomms9361.
ieee: P. Ma et al., “Observing the overall rocking motion of a protein in
a crystal,” Nature Communications, vol. 6. Springer Nature, 2015.
ista: Ma P, Xue Y, Coquelle N, Haller JD, Yuwen T, Ayala I, Mikhailovskii O, Willbold
D, Colletier J-P, Skrynnikov NR, Schanda P. 2015. Observing the overall rocking
motion of a protein in a crystal. Nature Communications. 6, 8361.
mla: Ma, Peixiang, et al. “Observing the Overall Rocking Motion of a Protein in
a Crystal.” Nature Communications, vol. 6, 8361, Springer Nature, 2015,
doi:10.1038/ncomms9361.
short: P. Ma, Y. Xue, N. Coquelle, J.D. Haller, T. Yuwen, I. Ayala, O. Mikhailovskii,
D. Willbold, J.-P. Colletier, N.R. Skrynnikov, P. Schanda, Nature Communications
6 (2015).
date_created: 2020-09-18T10:07:36Z
date_published: 2015-10-05T00:00:00Z
date_updated: 2021-01-12T08:19:24Z
day: '05'
doi: 10.1038/ncomms9361
extern: '1'
intvolume: ' 6'
keyword:
- General Biochemistry
- Genetics and Molecular Biology
- General Physics and Astronomy
- General Chemistry
language:
- iso: eng
month: '10'
oa_version: Published Version
publication: Nature Communications
publication_identifier:
issn:
- 2041-1723
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: Observing the overall rocking motion of a protein in a crystal
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 6
year: '2015'
...
---
_id: '8457'
abstract:
- lang: eng
text: We review recent advances in methodologies to study microseconds‐to‐milliseconds
exchange processes in biological molecules using magic‐angle spinning solid‐state
nuclear magnetic resonance (MAS ssNMR) spectroscopy. The particularities of MAS
ssNMR, as compared to solution‐state NMR, are elucidated using numerical simulations
and experimental data. These simulations reveal the potential of MAS NMR to provide
detailed insight into short‐lived conformations of biological molecules. Recent
studies of conformational exchange dynamics in microcrystalline ubiquitin are
discussed.
article_processing_charge: No
article_type: original
author:
- first_name: Peixiang
full_name: Ma, Peixiang
last_name: Ma
- first_name: Paul
full_name: Schanda, Paul
id: 7B541462-FAF6-11E9-A490-E8DFE5697425
last_name: Schanda
orcid: 0000-0002-9350-7606
citation:
ama: 'Ma P, Schanda P. Conformational exchange processes in biological systems:
Detection by solid-state NMR. eMagRes. 2015;4(3):699-708. doi:10.1002/9780470034590.emrstm1418'
apa: 'Ma, P., & Schanda, P. (2015). Conformational exchange processes in biological
systems: Detection by solid-state NMR. EMagRes. Wiley. https://doi.org/10.1002/9780470034590.emrstm1418'
chicago: 'Ma, Peixiang, and Paul Schanda. “Conformational Exchange Processes in
Biological Systems: Detection by Solid-State NMR.” EMagRes. Wiley, 2015.
https://doi.org/10.1002/9780470034590.emrstm1418.'
ieee: 'P. Ma and P. Schanda, “Conformational exchange processes in biological systems:
Detection by solid-state NMR,” eMagRes, vol. 4, no. 3. Wiley, pp. 699–708,
2015.'
ista: 'Ma P, Schanda P. 2015. Conformational exchange processes in biological systems:
Detection by solid-state NMR. eMagRes. 4(3), 699–708.'
mla: 'Ma, Peixiang, and Paul Schanda. “Conformational Exchange Processes in Biological
Systems: Detection by Solid-State NMR.” EMagRes, vol. 4, no. 3, Wiley,
2015, pp. 699–708, doi:10.1002/9780470034590.emrstm1418.'
short: P. Ma, P. Schanda, EMagRes 4 (2015) 699–708.
date_created: 2020-09-18T10:07:45Z
date_published: 2015-09-10T00:00:00Z
date_updated: 2021-01-12T08:19:24Z
day: '10'
doi: 10.1002/9780470034590.emrstm1418
extern: '1'
intvolume: ' 4'
issue: '3'
language:
- iso: eng
month: '09'
oa_version: None
page: 699-708
publication: eMagRes
publication_identifier:
isbn:
- '9780470034590'
- '9780470058213'
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: 'Conformational exchange processes in biological systems: Detection by solid-state
NMR'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 4
year: '2015'
...
---
_id: '848'
abstract:
- lang: eng
text: The nature of factors governing the tempo and mode of protein evolution is
a fundamental issue in evolutionary biology. Specifically, whether or not interactions
between different sites, or epistasis, are important in directing the course of
evolution became one of the central questions. Several recent reports have scrutinized
patterns of long-term protein evolution claiming them to be compatible only with
an epistatic fitness landscape. However, these claims have not yet been substantiated
with a formal model of protein evolution. Here, we formulate a simple covarion-like
model of protein evolution focusing on the rate at which the fitness impact of
amino acids at a site changes with time. We then apply the model to the data on
convergent and divergent protein evolution to test whether or not the incorporation
of epistatic interactions is necessary to explain the data. We find that convergent
evolution cannot be explained without the incorporation of epistasis and the rate
at which an amino acid state switches from being acceptable at a site to being
deleterious is faster than the rate of amino acid substitution. Specifically,
for proteins that have persisted in modern prokaryotic organisms since the last
universal common ancestor for one amino acid substitution approximately ten amino
acid states switch from being accessible to being deleterious, or vice versa.
Thus, molecular evolution can only be perceived in the context of rapid turnover
of which amino acids are available for evolution.
author:
- first_name: Dinara
full_name: Usmanova, Dinara
last_name: Usmanova
- first_name: Luca
full_name: Ferretti, Luca
last_name: Ferretti
- first_name: Inna
full_name: Povolotskaya, Inna
last_name: Povolotskaya
- first_name: Peter
full_name: Vlasov, Peter
last_name: Vlasov
- first_name: Fyodor
full_name: Kondrashov, Fyodor
id: 44FDEF62-F248-11E8-B48F-1D18A9856A87
last_name: Kondrashov
orcid: 0000-0001-8243-4694
citation:
ama: Usmanova D, Ferretti L, Povolotskaya I, Vlasov P, Kondrashov F. A model of
substitution trajectories in sequence space and long-term protein evolution. Molecular
Biology and Evolution. 2015;32(2):542-554. doi:10.1093/molbev/msu318
apa: Usmanova, D., Ferretti, L., Povolotskaya, I., Vlasov, P., & Kondrashov,
F. (2015). A model of substitution trajectories in sequence space and long-term
protein evolution. Molecular Biology and Evolution. Oxford University Press.
https://doi.org/10.1093/molbev/msu318
chicago: Usmanova, Dinara, Luca Ferretti, Inna Povolotskaya, Peter Vlasov, and Fyodor
Kondrashov. “A Model of Substitution Trajectories in Sequence Space and Long-Term
Protein Evolution.” Molecular Biology and Evolution. Oxford University
Press, 2015. https://doi.org/10.1093/molbev/msu318.
ieee: D. Usmanova, L. Ferretti, I. Povolotskaya, P. Vlasov, and F. Kondrashov, “A
model of substitution trajectories in sequence space and long-term protein evolution,”
Molecular Biology and Evolution, vol. 32, no. 2. Oxford University Press,
pp. 542–554, 2015.
ista: Usmanova D, Ferretti L, Povolotskaya I, Vlasov P, Kondrashov F. 2015. A model
of substitution trajectories in sequence space and long-term protein evolution.
Molecular Biology and Evolution. 32(2), 542–554.
mla: Usmanova, Dinara, et al. “A Model of Substitution Trajectories in Sequence
Space and Long-Term Protein Evolution.” Molecular Biology and Evolution,
vol. 32, no. 2, Oxford University Press, 2015, pp. 542–54, doi:10.1093/molbev/msu318.
short: D. Usmanova, L. Ferretti, I. Povolotskaya, P. Vlasov, F. Kondrashov, Molecular
Biology and Evolution 32 (2015) 542–554.
date_created: 2018-12-11T11:48:49Z
date_published: 2015-02-01T00:00:00Z
date_updated: 2021-01-12T08:19:33Z
day: '01'
doi: 10.1093/molbev/msu318
extern: '1'
intvolume: ' 32'
issue: '2'
language:
- iso: eng
month: '02'
oa_version: None
page: 542 - 554
publication: Molecular Biology and Evolution
publication_status: published
publisher: Oxford University Press
publist_id: '6804'
quality_controlled: '1'
status: public
title: A model of substitution trajectories in sequence space and long-term protein
evolution
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 32
year: '2015'
...
---
_id: '8495'
abstract:
- lang: eng
text: 'In this note, we consider the dynamics associated to a perturbation of an
integrable Hamiltonian system in action-angle coordinates in any number of degrees
of freedom and we prove the following result of ``micro-diffusion'''': under generic
assumptions on $ h$ and $ f$, there exists an orbit of the system for which the
drift of its action variables is at least of order $ \sqrt {\varepsilon }$, after
a time of order $ \sqrt {\varepsilon }^{-1}$. The assumptions, which are essentially
minimal, are that there exists a resonant point for $ h$ and that the corresponding
averaged perturbation is non-constant. The conclusions, although very weak when
compared to usual instability phenomena, are also essentially optimal within this
setting.'
article_processing_charge: No
article_type: letter_note
author:
- first_name: Abed
full_name: Bounemoura, Abed
last_name: Bounemoura
- first_name: Vadim
full_name: Kaloshin, Vadim
id: FE553552-CDE8-11E9-B324-C0EBE5697425
last_name: Kaloshin
orcid: 0000-0002-6051-2628
citation:
ama: Bounemoura A, Kaloshin V. A note on micro-instability for Hamiltonian systems
close to integrable. Proceedings of the American Mathematical Society.
2015;144(4):1553-1560. doi:10.1090/proc/12796
apa: Bounemoura, A., & Kaloshin, V. (2015). A note on micro-instability for
Hamiltonian systems close to integrable. Proceedings of the American Mathematical
Society. American Mathematical Society. https://doi.org/10.1090/proc/12796
chicago: Bounemoura, Abed, and Vadim Kaloshin. “A Note on Micro-Instability for
Hamiltonian Systems Close to Integrable.” Proceedings of the American Mathematical
Society. American Mathematical Society, 2015. https://doi.org/10.1090/proc/12796.
ieee: A. Bounemoura and V. Kaloshin, “A note on micro-instability for Hamiltonian
systems close to integrable,” Proceedings of the American Mathematical Society,
vol. 144, no. 4. American Mathematical Society, pp. 1553–1560, 2015.
ista: Bounemoura A, Kaloshin V. 2015. A note on micro-instability for Hamiltonian
systems close to integrable. Proceedings of the American Mathematical Society.
144(4), 1553–1560.
mla: Bounemoura, Abed, and Vadim Kaloshin. “A Note on Micro-Instability for Hamiltonian
Systems Close to Integrable.” Proceedings of the American Mathematical Society,
vol. 144, no. 4, American Mathematical Society, 2015, pp. 1553–60, doi:10.1090/proc/12796.
short: A. Bounemoura, V. Kaloshin, Proceedings of the American Mathematical Society
144 (2015) 1553–1560.
date_created: 2020-09-18T10:46:14Z
date_published: 2015-12-21T00:00:00Z
date_updated: 2021-01-12T08:19:40Z
day: '21'
doi: 10.1090/proc/12796
extern: '1'
intvolume: ' 144'
issue: '4'
language:
- iso: eng
month: '12'
oa_version: None
page: 1553-1560
publication: Proceedings of the American Mathematical Society
publication_identifier:
issn:
- 0002-9939
- 1088-6826
publication_status: published
publisher: American Mathematical Society
quality_controlled: '1'
status: public
title: A note on micro-instability for Hamiltonian systems close to integrable
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 144
year: '2015'
...
---
_id: '8498'
abstract:
- lang: eng
text: "In the present note we announce a proof of a strong form of Arnold diffusion
for smooth convex Hamiltonian systems. Let ${\\mathbb T}^2$ be a 2-dimensional
torus and B2 be the unit ball around the origin in ${\\mathbb R}^2$ . Fix ρ >
0. Our main result says that for a 'generic' time-periodic perturbation of an
integrable system of two degrees of freedom $H_0(p)+\\varepsilon H_1(\\theta,p,t),\\quad
\\ \\theta\\in {\\mathbb T}^2,\\ p\\in B^2,\\ t\\in {\\mathbb T}={\\mathbb R}/{\\mathbb
Z}$ , with a strictly convex H0, there exists a ρ-dense orbit (θε, pε, t)(t) in
${\\mathbb T}^2 \\times B^2 \\times {\\mathbb T}$ , namely, a ρ-neighborhood of
the orbit contains ${\\mathbb T}^2 \\times B^2 \\times {\\mathbb T}$ .\r\n\r\nOur
proof is a combination of geometric and variational methods. The fundamental elements
of the construction are the usage of crumpled normally hyperbolic invariant cylinders
from [9], flower and simple normally hyperbolic invariant manifolds from [36]
as well as their kissing property at a strong double resonance. This allows us
to build a 'connected' net of three-dimensional normally hyperbolic invariant
manifolds. To construct diffusing orbits along this net we employ a version of
the Mather variational method [41] equipped with weak KAM theory [28], proposed
by Bernard in [7]."
article_processing_charge: No
article_type: original
author:
- first_name: Vadim
full_name: Kaloshin, Vadim
id: FE553552-CDE8-11E9-B324-C0EBE5697425
last_name: Kaloshin
orcid: 0000-0002-6051-2628
- first_name: K
full_name: Zhang, K
last_name: Zhang
citation:
ama: Kaloshin V, Zhang K. Arnold diffusion for smooth convex systems of two and
a half degrees of freedom. Nonlinearity. 2015;28(8):2699-2720. doi:10.1088/0951-7715/28/8/2699
apa: Kaloshin, V., & Zhang, K. (2015). Arnold diffusion for smooth convex systems
of two and a half degrees of freedom. Nonlinearity. IOP Publishing. https://doi.org/10.1088/0951-7715/28/8/2699
chicago: Kaloshin, Vadim, and K Zhang. “Arnold Diffusion for Smooth Convex Systems
of Two and a Half Degrees of Freedom.” Nonlinearity. IOP Publishing, 2015.
https://doi.org/10.1088/0951-7715/28/8/2699.
ieee: V. Kaloshin and K. Zhang, “Arnold diffusion for smooth convex systems of two
and a half degrees of freedom,” Nonlinearity, vol. 28, no. 8. IOP Publishing,
pp. 2699–2720, 2015.
ista: Kaloshin V, Zhang K. 2015. Arnold diffusion for smooth convex systems of two
and a half degrees of freedom. Nonlinearity. 28(8), 2699–2720.
mla: Kaloshin, Vadim, and K. Zhang. “Arnold Diffusion for Smooth Convex Systems
of Two and a Half Degrees of Freedom.” Nonlinearity, vol. 28, no. 8, IOP
Publishing, 2015, pp. 2699–720, doi:10.1088/0951-7715/28/8/2699.
short: V. Kaloshin, K. Zhang, Nonlinearity 28 (2015) 2699–2720.
date_created: 2020-09-18T10:46:43Z
date_published: 2015-06-30T00:00:00Z
date_updated: 2021-01-12T08:19:41Z
day: '30'
doi: 10.1088/0951-7715/28/8/2699
extern: '1'
intvolume: ' 28'
issue: '8'
keyword:
- Mathematical Physics
- General Physics and Astronomy
- Applied Mathematics
- Statistical and Nonlinear Physics
language:
- iso: eng
month: '06'
oa_version: None
page: 2699-2720
publication: Nonlinearity
publication_identifier:
issn:
- 0951-7715
- 1361-6544
publication_status: published
publisher: IOP Publishing
quality_controlled: '1'
status: public
title: Arnold diffusion for smooth convex systems of two and a half degrees of freedom
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 28
year: '2015'
...