---
_id: '2962'
abstract:
- lang: eng
text: The choice of summary statistics is a crucial step in approximate Bayesian
computation (ABC). Since statistics are often not sufficient, this choice involves
a trade-off between loss of information and reduction of dimensionality. The latter
may increase the efficiency of ABC. Here, we propose an approach for choosing
summary statistics based on boosting, a technique from the machine learning literature.
We consider different types of boosting and compare them to partial least squares
regression as an alternative. To mitigate the lack of sufficiency, we also propose
an approach for choosing summary statistics locally, in the putative neighborhood
of the true parameter value. We study a demographic model motivated by the re-introduction
of Alpine ibex (Capra ibex) into the Swiss Alps. The parameters of interest are
the mean and standard deviation across microsatellites of the scaled ancestral
mutation rate (θanc = 4 Ne u), and the proportion of males obtaining access to
matings per breeding season (ω). By simulation, we assess the properties of the
posterior distribution obtained with the various methods. According to our criteria,
ABC with summary statistics chosen locally via boosting with the L2-loss performs
best. Applying that method to the ibex data, we estimate θanc ≈ 1.288, and find
that most of the variation across loci of the ancestral mutation rate u is between
7.7×10−4 and 3.5×10−3 per locus per generation. The proportion of males with access
to matings is estimated to ω ≈ 0.21, which is in good agreement with recent independent
estimates.
acknowledged_ssus:
- _id: ScienComp
article_processing_charge: No
author:
- first_name: Simon
full_name: Aeschbacher, Simon
id: 2D35326E-F248-11E8-B48F-1D18A9856A87
last_name: Aeschbacher
- first_name: Mark
full_name: Beaumont, Mark
last_name: Beaumont
- first_name: Andreas
full_name: Futschik, Andreas
last_name: Futschik
citation:
ama: Aeschbacher S, Beaumont M, Futschik A. A novel approach for choosing summary
statistics in approximate Bayesian computation. Genetics. 2012;192(3):1027-1047.
doi:10.1534/genetics.112.143164
apa: Aeschbacher, S., Beaumont, M., & Futschik, A. (2012). A novel approach
for choosing summary statistics in approximate Bayesian computation. Genetics.
Genetics Society of America. https://doi.org/10.1534/genetics.112.143164
chicago: Aeschbacher, Simon, Mark Beaumont, and Andreas Futschik. “A Novel Approach
for Choosing Summary Statistics in Approximate Bayesian Computation.” Genetics.
Genetics Society of America, 2012. https://doi.org/10.1534/genetics.112.143164.
ieee: S. Aeschbacher, M. Beaumont, and A. Futschik, “A novel approach for choosing
summary statistics in approximate Bayesian computation,” Genetics, vol.
192, no. 3. Genetics Society of America, pp. 1027–1047, 2012.
ista: Aeschbacher S, Beaumont M, Futschik A. 2012. A novel approach for choosing
summary statistics in approximate Bayesian computation. Genetics. 192(3), 1027–1047.
mla: Aeschbacher, Simon, et al. “A Novel Approach for Choosing Summary Statistics
in Approximate Bayesian Computation.” Genetics, vol. 192, no. 3, Genetics
Society of America, 2012, pp. 1027–47, doi:10.1534/genetics.112.143164.
short: S. Aeschbacher, M. Beaumont, A. Futschik, Genetics 192 (2012) 1027–1047.
corr_author: '1'
date_created: 2018-12-11T12:00:34Z
date_published: 2012-11-01T00:00:00Z
date_updated: 2025-09-30T08:06:06Z
day: '01'
department:
- _id: NiBa
doi: 10.1534/genetics.112.143164
external_id:
isi:
- '000310793900018'
pmid:
- '22960215'
intvolume: ' 192'
isi: 1
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3522150/
month: '11'
oa: 1
oa_version: Submitted Version
page: 1027 - 1047
pmid: 1
publication: Genetics
publication_status: published
publisher: Genetics Society of America
publist_id: '3763'
quality_controlled: '1'
scopus_import: '1'
status: public
title: A novel approach for choosing summary statistics in approximate Bayesian computation
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 192
year: '2012'
...
---
_id: '2963'
abstract:
- lang: eng
text: 'Zebra finches are an ubiquitous model system for the study of vocal learning
in animal communication. Their song has been well described, but its possible
function(s) in social communication are only partly understood. The so-called
‘directed song’ is a high-intensity, high-performance song given during courtship
in close proximity to the female, which is known to mediate mate choice and mating.
However, this singing mode constitutes only a fraction of zebra finch males’ prolific
song output. Potential communicative functions of their second, ‘undirected’ singing
mode remain unresolved in the face of contradicting reports of both facilitating
and inhibiting effects of social company on singing. We addressed this issue by
experimentally manipulating social contexts in a within-subject design, comparing
a solo versus male or female only company condition, each lasting for 24 hours.
Males’ total song output was significantly higher when a conspecific was in audible
and visible distance than when they were alone. Male and female company had an
equally facilitating effect on song output. Our findings thus indicate that singing
motivation is facilitated rather than inhibited by social company, suggesting
that singing in zebra finches might function both in inter- and intrasexual communication. '
article_processing_charge: No
author:
- first_name: Fabienne
full_name: Jesse, Fabienne
id: 4C8C26A4-F248-11E8-B48F-1D18A9856A87
last_name: Jesse
- first_name: Katharina
full_name: Riebel, Katharina
last_name: Riebel
citation:
ama: Jesse F, Riebel K. Social facilitation of male song by male and female conspecifics
in the zebra finch, Taeniopygia guttata. Behavioural Processes. 2012;91(3):262-266.
doi:10.1016/j.beproc.2012.09.006
apa: Jesse, F., & Riebel, K. (2012). Social facilitation of male song by male
and female conspecifics in the zebra finch, Taeniopygia guttata. Behavioural
Processes. Elsevier. https://doi.org/10.1016/j.beproc.2012.09.006
chicago: Jesse, Fabienne, and Katharina Riebel. “Social Facilitation of Male Song
by Male and Female Conspecifics in the Zebra Finch, Taeniopygia Guttata.” Behavioural
Processes. Elsevier, 2012. https://doi.org/10.1016/j.beproc.2012.09.006.
ieee: F. Jesse and K. Riebel, “Social facilitation of male song by male and female
conspecifics in the zebra finch, Taeniopygia guttata,” Behavioural Processes,
vol. 91, no. 3. Elsevier, pp. 262–266, 2012.
ista: Jesse F, Riebel K. 2012. Social facilitation of male song by male and female
conspecifics in the zebra finch, Taeniopygia guttata. Behavioural Processes. 91(3),
262–266.
mla: Jesse, Fabienne, and Katharina Riebel. “Social Facilitation of Male Song by
Male and Female Conspecifics in the Zebra Finch, Taeniopygia Guttata.” Behavioural
Processes, vol. 91, no. 3, Elsevier, 2012, pp. 262–66, doi:10.1016/j.beproc.2012.09.006.
short: F. Jesse, K. Riebel, Behavioural Processes 91 (2012) 262–266.
corr_author: '1'
date_created: 2018-12-11T12:00:35Z
date_published: 2012-11-01T00:00:00Z
date_updated: 2025-09-30T08:05:37Z
day: '01'
department:
- _id: JoBo
doi: 10.1016/j.beproc.2012.09.006
external_id:
isi:
- '000311660200007'
intvolume: ' 91'
isi: 1
issue: '3'
language:
- iso: eng
month: '11'
oa_version: None
page: 262 - 266
publication: Behavioural Processes
publication_status: published
publisher: Elsevier
publist_id: '3756'
quality_controlled: '1'
status: public
title: Social facilitation of male song by male and female conspecifics in the zebra
finch, Taeniopygia guttata
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 91
year: '2012'
...
---
OA_place: publisher
_id: '2964'
abstract:
- lang: eng
text: 'CA3 pyramidal neurons are important for memory formation and pattern completion
in the hippocampal network. These neurons receive multiple excitatory inputs from
numerous sources. Therefore, the rules of spatiotemporal integration of multiple
synaptic inputs and propagation of action potentials are important to understand
how CA3 neurons contribute to higher brain functions at cellular level. By using
confocally targeted patch-clamp recording techniques, we investigated the biophysical
properties of rat CA3 pyramidal neuron dendrites. We found two distinct dendritic
domains critical for action potential initiation and propagation: In the proximal
domain, action potentials initiated in the axon backpropagate actively with large
amplitude and fast time course. In the distal domain, Na+-channel mediated dendritic
spikes are efficiently evoked by local dendritic depolarization or waveforms mimicking
synaptic events. These findings can be explained by a high Na+-to-K+ conductance
density ratio of CA3 pyramidal neuron dendrites. The results challenge the prevailing
view that proximal mossy fiber inputs activate CA3 pyramidal neurons more efficiently
than distal perforant inputs by showing that the distal synapses trigger a different
form of activity represented by dendritic spikes. The high probability of dendritic
spike initiation in the distal area may enhance the computational power of CA3
pyramidal neurons in the hippocampal network. '
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Sooyun
full_name: Kim, Sooyun
id: 394AB1C8-F248-11E8-B48F-1D18A9856A87
last_name: Kim
citation:
ama: Kim S. Active properties of hippocampal CA3 pyramidal neuron dendrites. 2012.
apa: Kim, S. (2012). Active properties of hippocampal CA3 pyramidal neuron dendrites.
Institute of Science and Technology Austria.
chicago: Kim, Sooyun. “Active Properties of Hippocampal CA3 Pyramidal Neuron Dendrites.”
Institute of Science and Technology Austria, 2012.
ieee: S. Kim, “Active properties of hippocampal CA3 pyramidal neuron dendrites,”
Institute of Science and Technology Austria, 2012.
ista: Kim S. 2012. Active properties of hippocampal CA3 pyramidal neuron dendrites.
Institute of Science and Technology Austria.
mla: Kim, Sooyun. Active Properties of Hippocampal CA3 Pyramidal Neuron Dendrites.
Institute of Science and Technology Austria, 2012.
short: S. Kim, Active Properties of Hippocampal CA3 Pyramidal Neuron Dendrites,
Institute of Science and Technology Austria, 2012.
corr_author: '1'
date_created: 2018-12-11T12:00:35Z
date_published: 2012-06-01T00:00:00Z
date_updated: 2026-06-18T18:41:53Z
day: '01'
degree_awarded: PhD
department:
- _id: PeJo
- _id: GradSch
language:
- iso: eng
month: '06'
oa_version: None
page: '65'
publication_identifier:
issn:
- 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
publist_id: '3755'
related_material:
record:
- id: '3258'
relation: part_of_dissertation
status: public
status: public
supervisor:
- first_name: Peter M
full_name: Jonas, Peter M
id: 353C1B58-F248-11E8-B48F-1D18A9856A87
last_name: Jonas
orcid: 0000-0001-5001-4804
title: Active properties of hippocampal CA3 pyramidal neuron dendrites
type: dissertation
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
year: '2012'
...
---
_id: '2966'
abstract:
- lang: eng
text: 'Background: The outcome of male-male competition can be predicted from the
relative fighting qualities of the opponents, which often depend on their age.
In insects, freshly emerged and still sexually inactive males are morphologically
indistinct from older, sexually active males. These young inactive males may thus
be easy targets for older males if they cannot conceal themselves from their attacks.
The ant Cardiocondyla obscurior is characterised by lethal fighting between wingless
(" ergatoid" ) males. Here, we analyse for how long young males are
defenceless after eclosion, and how early adult males can detect the presence
of rival males.Results: We found that old ergatoid males consistently won fights
against ergatoid males younger than two days. Old males did not differentiate
between different types of unpigmented pupae several days before emergence, but
had more frequent contact to ready-to-eclose pupae of female sexuals and winged
males than of workers and ergatoid males. In rare cases, old ergatoid males displayed
alleviated biting of pigmented ergatoid male pupae shortly before adult eclosion,
as well as copulation attempts to dark pupae of female sexuals and winged males.
Ergatoid male behaviour may be promoted by a closer similarity of the chemical
profile of ready-to-eclose pupae to the profile of adults than that of young pupae
several days prior to emergence.Conclusion: Young ergatoid males of C. obscurior
would benefit greatly by hiding their identity from older, resident males, as
they are highly vulnerable during the first two days of their adult lives. In
contrast to the winged males of the same species, which are able to prevent ergatoid
male attacks by chemical female mimicry, young ergatoids do not seem to be able
to produce a protective chemical profile. Conflicts in male-male competition between
ergatoid males of different age thus seem to be resolved in favour of the older
males. This might represent selection at the colony level rather than the individual
level. © 2012 Cremer et al.; licensee BioMed Central Ltd.'
article_number: '7'
article_processing_charge: No
author:
- first_name: Sylvia
full_name: Cremer, Sylvia
id: 2F64EC8C-F248-11E8-B48F-1D18A9856A87
last_name: Cremer
orcid: 0000-0002-2193-3868
- first_name: Masaki
full_name: Suefuji, Masaki
last_name: Suefuji
- first_name: Alexandra
full_name: Schrempf, Alexandra
last_name: Schrempf
- first_name: Jürgen
full_name: Heinze, Jürgen
last_name: Heinze
citation:
ama: Cremer S, Suefuji M, Schrempf A, Heinze J. The dynamics of male-male competition
in Cardiocondyla obscurior ants. BMC Ecology. 2012;12. doi:10.1186/1472-6785-12-7
apa: Cremer, S., Suefuji, M., Schrempf, A., & Heinze, J. (2012). The dynamics
of male-male competition in Cardiocondyla obscurior ants. BMC Ecology.
BioMed Central. https://doi.org/10.1186/1472-6785-12-7
chicago: Cremer, Sylvia, Masaki Suefuji, Alexandra Schrempf, and Jürgen Heinze.
“The Dynamics of Male-Male Competition in Cardiocondyla Obscurior Ants.” BMC
Ecology. BioMed Central, 2012. https://doi.org/10.1186/1472-6785-12-7.
ieee: S. Cremer, M. Suefuji, A. Schrempf, and J. Heinze, “The dynamics of male-male
competition in Cardiocondyla obscurior ants,” BMC Ecology, vol. 12. BioMed
Central, 2012.
ista: Cremer S, Suefuji M, Schrempf A, Heinze J. 2012. The dynamics of male-male
competition in Cardiocondyla obscurior ants. BMC Ecology. 12, 7.
mla: Cremer, Sylvia, et al. “The Dynamics of Male-Male Competition in Cardiocondyla
Obscurior Ants.” BMC Ecology, vol. 12, 7, BioMed Central, 2012, doi:10.1186/1472-6785-12-7.
short: S. Cremer, M. Suefuji, A. Schrempf, J. Heinze, BMC Ecology 12 (2012).
corr_author: '1'
date_created: 2018-12-11T12:00:35Z
date_published: 2012-06-15T00:00:00Z
date_updated: 2025-09-30T08:05:03Z
day: '15'
ddc:
- '570'
department:
- _id: SyCr
doi: 10.1186/1472-6785-12-7
external_id:
isi:
- '000307777500001'
file:
- access_level: open_access
checksum: 03d004bdff3724fb1627e3f5004bad80
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:08:44Z
date_updated: 2020-07-14T12:45:57Z
file_id: '4706'
file_name: IST-2012-94-v1+1_1472-6785-12-7.pdf
file_size: 489994
relation: main_file
file_date_updated: 2020-07-14T12:45:57Z
has_accepted_license: '1'
intvolume: ' 12'
isi: 1
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
month: '06'
oa: 1
oa_version: Published Version
publication: BMC Ecology
publication_status: published
publisher: BioMed Central
publist_id: '3753'
pubrep_id: '94'
quality_controlled: '1'
scopus_import: '1'
status: public
title: The dynamics of male-male competition in Cardiocondyla obscurior ants
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 12
year: '2012'
...
---
_id: '2968'
abstract:
- lang: eng
text: Little is known about the stability of trophic relationships in complex natural
communities over evolutionary timescales. Here, we use sequence data from 18 nuclear
loci to reconstruct and compare the intraspecific histories of major Pleistocene
refugial populations in the Middle East, the Balkans and Iberia in a guild of
four Chalcid parasitoids (Cecidostiba fungosa, Cecidostiba semifascia, Hobbya
stenonota and Mesopolobus amaenus) all attacking Cynipid oak galls. We develop
a likelihood method to numerically estimate models of divergence between three
populations from multilocus data. We investigate the power of this framework on
simulated data, and-using triplet alignments of intronic loci-quantify the support
for all possible divergence relationships between refugial populations in the
four parasitoids. Although an East to West order of population divergence has
highest support in all but one species, we cannot rule out alternative population
tree topologies. Comparing the estimated times of population splits between species,
we find that one species, M. amaenus, has a significantly older history than the
rest of the guild and must have arrived in central Europe at least one glacial
cycle prior to other guild members. This suggests that although all four species
may share a common origin in the East, they expanded westwards into Europe at
different times. © 2012 Blackwell Publishing Ltd.
acknowledgement: "This work was supported by funding from the UK Natural Environment
Research Council to KL (NE/I020288/1) and GS (NE/H000038/1, NE/E014453/1, NER/B/504406/1,
NER/B/S2003/00856) and a grant from the European Research Council (250152) to NB.\r\nWe
thank Majide Tavakoli, Juli Pujade-Villar and Pablo-Fuentes Utrilla for contributing
specimens. Mike Hickerson and three anonymous reviewers gave helpful comments on
earlier versions of the manuscript. "
article_processing_charge: No
author:
- first_name: Konrad
full_name: Lohse, Konrad
last_name: Lohse
- first_name: Nicholas H
full_name: Barton, Nicholas H
id: 4880FE40-F248-11E8-B48F-1D18A9856A87
last_name: Barton
orcid: 0000-0002-8548-5240
- first_name: George
full_name: Melika, George
last_name: Melika
- first_name: Graham
full_name: Stone, Graham
last_name: Stone
citation:
ama: Lohse K, Barton NH, Melika G, Stone G. A likelihood based comparison of population
histories in a parasitoid guild. Molecular Ecology. 2012;21(18):4605-4617.
doi:10.1111/j.1365-294X.2012.05700.x
apa: Lohse, K., Barton, N. H., Melika, G., & Stone, G. (2012). A likelihood
based comparison of population histories in a parasitoid guild. Molecular Ecology.
Wiley-Blackwell. https://doi.org/10.1111/j.1365-294X.2012.05700.x
chicago: Lohse, Konrad, Nicholas H Barton, George Melika, and Graham Stone. “A Likelihood
Based Comparison of Population Histories in a Parasitoid Guild.” Molecular
Ecology. Wiley-Blackwell, 2012. https://doi.org/10.1111/j.1365-294X.2012.05700.x.
ieee: K. Lohse, N. H. Barton, G. Melika, and G. Stone, “A likelihood based comparison
of population histories in a parasitoid guild,” Molecular Ecology, vol.
21, no. 18. Wiley-Blackwell, pp. 4605–4617, 2012.
ista: Lohse K, Barton NH, Melika G, Stone G. 2012. A likelihood based comparison
of population histories in a parasitoid guild. Molecular Ecology. 21(18), 4605–4617.
mla: Lohse, Konrad, et al. “A Likelihood Based Comparison of Population Histories
in a Parasitoid Guild.” Molecular Ecology, vol. 21, no. 18, Wiley-Blackwell,
2012, pp. 4605–17, doi:10.1111/j.1365-294X.2012.05700.x.
short: K. Lohse, N.H. Barton, G. Melika, G. Stone, Molecular Ecology 21 (2012) 4605–4617.
date_created: 2018-12-11T12:00:36Z
date_published: 2012-09-01T00:00:00Z
date_updated: 2025-09-30T08:04:03Z
day: '01'
ddc:
- '570'
- '579'
department:
- _id: NiBa
doi: 10.1111/j.1365-294X.2012.05700.x
ec_funded: 1
external_id:
isi:
- '000308634300016'
file:
- access_level: open_access
checksum: c14ee4cb2a8ba9575bfd8a9bb7a883bb
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:17:47Z
date_updated: 2020-07-14T12:45:57Z
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file_size: 235820
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checksum: f00afc5b887c8222014b57375b8caece
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:17:48Z
date_updated: 2020-07-14T12:45:57Z
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has_accepted_license: '1'
intvolume: ' 21'
isi: 1
issue: '18'
language:
- iso: eng
month: '09'
oa: 1
oa_version: Submitted Version
page: 4605 - 4617
project:
- _id: 25B07788-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '250152'
name: Limits to selection in biology and in evolutionary computation
publication: Molecular Ecology
publication_status: published
publisher: Wiley-Blackwell
publist_id: '3746'
pubrep_id: '296'
quality_controlled: '1'
related_material:
record:
- id: '13075'
relation: research_data
status: public
scopus_import: '1'
status: public
title: A likelihood based comparison of population histories in a parasitoid guild
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 21
year: '2012'
...
---
_id: '2969'
abstract:
- lang: eng
text: "The coupling between presynaptic Ca^(2+) channels and Ca^(2+) sensors of
exocytosis is a key determinant of synaptic transmission. Evoked release from
parvalbumin (PV)-expressing interneurons is triggered by nanodomain coupling of
P/Q-type Ca^(2+) channels, whereas release from cholecystokinin (CCK)-containing
interneurons is generated by microdomain coupling of N-type channels. Nanodomain
coupling has several functional advantages, including speed and efficacy of transmission.
One potential disadvantage is that stochastic\r\nopening of presynaptic Ca^(2+)
channels may trigger spontaneous transmitter release. We addressed this possibility
in rat hippocampal\r\ngranule cells, which receive converging inputs from different
inhibitory sources. Both reduction of extracellular Ca^(2+) concentration and
the unselective Ca^(2+) channel blocker Cd^(2+) reduced the frequency of miniature
IPSCs (mIPSCs) in granule cells by ~50%, suggesting that the opening of presynaptic
Ca^(2+) channels contributes to spontaneous release. Application of the selective
P/Q-type Ca^(2+) channel blocker\r\nω-agatoxin IVa had no detectable effects,
whereas both the N-type blocker ω-conotoxin GVIa and the L-type blocker nimodipine
reduced\r\nmIPSC frequency. Furthermore, both the fast Ca^(2+) chelator BAPTA-AM
and the slow chelator EGTA-AM reduced the mIPSC frequency,\r\nsuggesting that
Ca^(2+)-dependent spontaneous release is triggered by microdomain rather than
nanodomain coupling. The CB_(1) receptor\r\nagonist WIN 55212-2 also decreased
spontaneous release; this effect was occluded by prior application of ω-conotoxin
GVIa, suggesting that a major fraction of Ca^(2+)-dependent spontaneous release
was generated at the terminals of CCK-expressing interneurons. Tonic inhibition
generated by spontaneous opening of presynaptic N- and L-type Ca^(2+) channels
may be important for hippocampal information processing.\r\n"
acknowledgement: This work was supported by grants from the Deutsche Forschungsgemeinschaft
(TR 3/B10, Leibniz program, GSC-4 Spemann Graduate School) and the European Union
(European Research Council Advanced Grant).
article_processing_charge: No
author:
- first_name: Sarit
full_name: Goswami, Sarit
id: 3A578F32-F248-11E8-B48F-1D18A9856A87
last_name: Goswami
- first_name: Iancu
full_name: Bucurenciu, Iancu
last_name: Bucurenciu
- first_name: Peter M
full_name: Jonas, Peter M
id: 353C1B58-F248-11E8-B48F-1D18A9856A87
last_name: Jonas
orcid: 0000-0001-5001-4804
citation:
ama: Goswami S, Bucurenciu I, Jonas PM. Miniature IPSCs in hippocampal granule cells
are triggered by voltage-gated Ca^(2+) channels via microdomain coupling. Journal
of Neuroscience. 2012;32(41):14294-14304. doi:10.1523/JNEUROSCI.6104-11.2012
apa: Goswami, S., Bucurenciu, I., & Jonas, P. M. (2012). Miniature IPSCs in
hippocampal granule cells are triggered by voltage-gated Ca^(2+) channels via
microdomain coupling. Journal of Neuroscience. Society for Neuroscience.
https://doi.org/10.1523/JNEUROSCI.6104-11.2012
chicago: Goswami, Sarit, Iancu Bucurenciu, and Peter M Jonas. “Miniature IPSCs in
Hippocampal Granule Cells Are Triggered by Voltage-Gated Ca^(2+) Channels via
Microdomain Coupling.” Journal of Neuroscience. Society for Neuroscience,
2012. https://doi.org/10.1523/JNEUROSCI.6104-11.2012.
ieee: S. Goswami, I. Bucurenciu, and P. M. Jonas, “Miniature IPSCs in hippocampal
granule cells are triggered by voltage-gated Ca^(2+) channels via microdomain
coupling,” Journal of Neuroscience, vol. 32, no. 41. Society for Neuroscience,
pp. 14294–14304, 2012.
ista: Goswami S, Bucurenciu I, Jonas PM. 2012. Miniature IPSCs in hippocampal granule
cells are triggered by voltage-gated Ca^(2+) channels via microdomain coupling.
Journal of Neuroscience. 32(41), 14294–14304.
mla: Goswami, Sarit, et al. “Miniature IPSCs in Hippocampal Granule Cells Are Triggered
by Voltage-Gated Ca^(2+) Channels via Microdomain Coupling.” Journal of Neuroscience,
vol. 32, no. 41, Society for Neuroscience, 2012, pp. 14294–304, doi:10.1523/JNEUROSCI.6104-11.2012.
short: S. Goswami, I. Bucurenciu, P.M. Jonas, Journal of Neuroscience 32 (2012)
14294–14304.
corr_author: '1'
date_created: 2018-12-11T12:00:36Z
date_published: 2012-10-10T00:00:00Z
date_updated: 2025-09-30T08:03:27Z
day: '10'
department:
- _id: PeJo
doi: 10.1523/JNEUROSCI.6104-11.2012
external_id:
isi:
- '000309963700030'
pmid:
- '23055500'
intvolume: ' 32'
isi: 1
issue: '41'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3632771/
month: '10'
oa: 1
oa_version: Submitted Version
page: 14294 - 14304
pmid: 1
project:
- _id: 25BDE9A4-B435-11E9-9278-68D0E5697425
grant_number: SFB-TR3-TP10B
name: "Glutamaterge synaptische Ã\x9Cbertragung und Plastizität in hippocampalen
Mikroschaltkreisen"
publication: Journal of Neuroscience
publication_status: published
publisher: Society for Neuroscience
publist_id: '3744'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Miniature IPSCs in hippocampal granule cells are triggered by voltage-gated
Ca^(2+) channels via microdomain coupling
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 32
year: '2012'
...
---
_id: '2970'
abstract:
- lang: eng
text: Morphogen gradients regulate the patterning and growth of many tissues, hence
a key question is how they are established and maintained during development.
Theoretical descriptions have helped to explain how gradient shape is controlled
by the rates of morphogen production, spreading and degradation. These effective
rates have been measured using fluorescence recovery after photobleaching (FRAP)
and photoactivation. To unravel which molecular events determine the effective
rates, such tissue-level assays have been combined with genetic analysis, high-resolution
assays, and models that take into account interactions with receptors, extracellular
components and trafficking. Nevertheless, because of the natural and experimental
data variability, and the underlying assumptions of transport models, it remains
challenging to conclusively distinguish between cellular mechanisms.
acknowledgement: AK is currently supported by an MRC CDF. MGG and OW were supported
by the Swiss National Science Foundation, grants from the Swiss SystemsX.ch initiative,
LipidX-2008/011, an ERC advanced investigator grant and the Polish-Swiss research
program.
article_processing_charge: No
author:
- first_name: Anna
full_name: Kicheva, Anna
id: 3959A2A0-F248-11E8-B48F-1D18A9856A87
last_name: Kicheva
orcid: 0000-0003-4509-4998
- first_name: Mark Tobias
full_name: Bollenbach, Mark Tobias
id: 3E6DB97A-F248-11E8-B48F-1D18A9856A87
last_name: Bollenbach
orcid: 0000-0003-4398-476X
- first_name: Ortrud
full_name: Wartlick, Ortrud
last_name: Wartlick
- first_name: Frank
full_name: Julicher, Frank
last_name: Julicher
- first_name: Marcos
full_name: Gonzalez Gaitan, Marcos
last_name: Gonzalez Gaitan
citation:
ama: 'Kicheva A, Bollenbach MT, Wartlick O, Julicher F, Gonzalez Gaitan M. Investigating
the principles of morphogen gradient formation: from tissues to cells. Current
Opinion in Genetics & Development. 2012;22(6):527-532. doi:10.1016/j.gde.2012.08.004'
apa: 'Kicheva, A., Bollenbach, M. T., Wartlick, O., Julicher, F., & Gonzalez
Gaitan, M. (2012). Investigating the principles of morphogen gradient formation:
from tissues to cells. Current Opinion in Genetics & Development. Elsevier.
https://doi.org/10.1016/j.gde.2012.08.004'
chicago: 'Kicheva, Anna, Mark Tobias Bollenbach, Ortrud Wartlick, Frank Julicher,
and Marcos Gonzalez Gaitan. “Investigating the Principles of Morphogen Gradient
Formation: From Tissues to Cells.” Current Opinion in Genetics & Development.
Elsevier, 2012. https://doi.org/10.1016/j.gde.2012.08.004.'
ieee: 'A. Kicheva, M. T. Bollenbach, O. Wartlick, F. Julicher, and M. Gonzalez Gaitan,
“Investigating the principles of morphogen gradient formation: from tissues to
cells,” Current Opinion in Genetics & Development, vol. 22, no. 6.
Elsevier, pp. 527–532, 2012.'
ista: 'Kicheva A, Bollenbach MT, Wartlick O, Julicher F, Gonzalez Gaitan M. 2012.
Investigating the principles of morphogen gradient formation: from tissues to
cells. Current Opinion in Genetics & Development. 22(6), 527–532.'
mla: 'Kicheva, Anna, et al. “Investigating the Principles of Morphogen Gradient
Formation: From Tissues to Cells.” Current Opinion in Genetics & Development,
vol. 22, no. 6, Elsevier, 2012, pp. 527–32, doi:10.1016/j.gde.2012.08.004.'
short: A. Kicheva, M.T. Bollenbach, O. Wartlick, F. Julicher, M. Gonzalez Gaitan,
Current Opinion in Genetics & Development 22 (2012) 527–532.
date_created: 2018-12-11T12:00:37Z
date_published: 2012-12-01T00:00:00Z
date_updated: 2025-09-30T08:02:58Z
day: '01'
department:
- _id: ToBo
doi: 10.1016/j.gde.2012.08.004
external_id:
isi:
- '000314490300002'
intvolume: ' 22'
isi: 1
issue: '6'
language:
- iso: eng
month: '12'
oa_version: None
page: 527 - 532
publication: Current Opinion in Genetics & Development
publication_status: published
publisher: Elsevier
publist_id: '3739'
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Investigating the principles of morphogen gradient formation: from tissues
to cells'
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 22
year: '2012'
...
---
OA_type: closed access
_id: '2971'
abstract:
- lang: eng
text: 'We study the task of interactive semantic labeling of a segmentation hierarchy.
To this end we propose a framework interleaving two components: an automatic labeling
step, based on a Conditional Random Field whose dependencies are defined by the
inclusion tree of the segmentation hierarchy, and an interaction step that integrates
incremental input from a human user. Evaluated on two distinct datasets, the proposed
interactive approach efficiently integrates human interventions and illustrates
the advantages of structured prediction in an interactive framework. '
alternative_title:
- LNCS
article_processing_charge: No
author:
- first_name: Georg
full_name: Zankl, Georg
last_name: Zankl
- first_name: Yll
full_name: Haxhimusa, Yll
last_name: Haxhimusa
- first_name: Adrian
full_name: Ion, Adrian
id: 29F89302-F248-11E8-B48F-1D18A9856A87
last_name: Ion
citation:
ama: 'Zankl G, Haxhimusa Y, Ion A. Interactive labeling of image segmentation hierarchies.
In: 34th DAGM and 36th OAGM Symposium. Vol 7476. Springer; 2012:11-20.
doi:10.1007/978-3-642-32717-9_2'
apa: 'Zankl, G., Haxhimusa, Y., & Ion, A. (2012). Interactive labeling of image
segmentation hierarchies. In 34th DAGM and 36th OAGM Symposium (Vol. 7476,
pp. 11–20). Graz, Austria: Springer. https://doi.org/10.1007/978-3-642-32717-9_2'
chicago: Zankl, Georg, Yll Haxhimusa, and Adrian Ion. “Interactive Labeling of Image
Segmentation Hierarchies.” In 34th DAGM and 36th OAGM Symposium, 7476:11–20.
Springer, 2012. https://doi.org/10.1007/978-3-642-32717-9_2.
ieee: G. Zankl, Y. Haxhimusa, and A. Ion, “Interactive labeling of image segmentation
hierarchies,” in 34th DAGM and 36th OAGM Symposium, Graz, Austria, 2012,
vol. 7476, pp. 11–20.
ista: Zankl G, Haxhimusa Y, Ion A. 2012. Interactive labeling of image segmentation
hierarchies. 34th DAGM and 36th OAGM Symposium. Pattern Recognition, LNCS, vol.
7476, 11–20.
mla: Zankl, Georg, et al. “Interactive Labeling of Image Segmentation Hierarchies.”
34th DAGM and 36th OAGM Symposium, vol. 7476, Springer, 2012, pp. 11–20,
doi:10.1007/978-3-642-32717-9_2.
short: G. Zankl, Y. Haxhimusa, A. Ion, in:, 34th DAGM and 36th OAGM Symposium, Springer,
2012, pp. 11–20.
conference:
end_date: 2012-08-31
location: Graz, Austria
name: Pattern Recognition
start_date: 2012-08-28
date_created: 2018-12-11T12:00:37Z
date_published: 2012-08-01T00:00:00Z
date_updated: 2025-05-20T07:21:42Z
day: '01'
department:
- _id: HeEd
doi: 10.1007/978-3-642-32717-9_2
intvolume: ' 7476'
language:
- iso: eng
month: '08'
oa_version: None
page: 11 - 20
publication: 34th DAGM and 36th OAGM Symposium
publication_identifier:
eisbn:
- '9783642327179'
eissn:
- 1611-3349
publication_status: published
publisher: Springer
publist_id: '3737'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Interactive labeling of image segmentation hierarchies
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 7476
year: '2012'
...
---
_id: '2972'
abstract:
- lang: eng
text: 'Energy parity games are infinite two-player turn-based games played on weighted
graphs. The objective of the game combines a (qualitative) parity condition with
the (quantitative) requirement that the sum of the weights (i.e., the level of
energy in the game) must remain positive. Beside their own interest in the design
and synthesis of resource-constrained omega-regular specifications, energy parity
games provide one of the simplest model of games with combined qualitative and
quantitative objectives. Our main results are as follows: (a) exponential memory
is sufficient and may be necessary for winning strategies in energy parity games;
(b) the problem of deciding the winner in energy parity games can be solved in
NP ∩ coNP; and (c) we give an algorithm to solve energy parity by reduction to
energy games. We also show that the problem of deciding the winner in energy parity
games is logspace-equivalent to the problem of deciding the winner in mean-payoff
parity games, which can thus be solved in NP ∩ coNP. As a consequence we also
obtain a conceptually simple algorithm to solve mean-payoff parity games.'
article_processing_charge: No
arxiv: 1
author:
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Laurent
full_name: Doyen, Laurent
last_name: Doyen
citation:
ama: Chatterjee K, Doyen L. Energy parity games. Theoretical Computer Science.
2012;458:49-60. doi:10.1016/j.tcs.2012.07.038
apa: Chatterjee, K., & Doyen, L. (2012). Energy parity games. Theoretical
Computer Science. Elsevier. https://doi.org/10.1016/j.tcs.2012.07.038
chicago: Chatterjee, Krishnendu, and Laurent Doyen. “Energy Parity Games.” Theoretical
Computer Science. Elsevier, 2012. https://doi.org/10.1016/j.tcs.2012.07.038.
ieee: K. Chatterjee and L. Doyen, “Energy parity games,” Theoretical Computer
Science, vol. 458. Elsevier, pp. 49–60, 2012.
ista: Chatterjee K, Doyen L. 2012. Energy parity games. Theoretical Computer Science.
458, 49–60.
mla: Chatterjee, Krishnendu, and Laurent Doyen. “Energy Parity Games.” Theoretical
Computer Science, vol. 458, Elsevier, 2012, pp. 49–60, doi:10.1016/j.tcs.2012.07.038.
short: K. Chatterjee, L. Doyen, Theoretical Computer Science 458 (2012) 49–60.
date_created: 2018-12-11T12:00:37Z
date_published: 2012-11-02T00:00:00Z
date_updated: 2025-09-30T08:02:20Z
day: '02'
ddc:
- '004'
department:
- _id: KrCh
doi: 10.1016/j.tcs.2012.07.038
ec_funded: 1
external_id:
arxiv:
- '1001.5183'
isi:
- '000310184900003'
file:
- access_level: open_access
checksum: 719e4a5af5a01ad3f2f7f7f05b3c2b09
content_type: application/pdf
creator: kschuh
date_created: 2019-02-06T11:56:22Z
date_updated: 2020-07-14T12:45:57Z
file_id: '5935'
file_name: 2012_Elsevier_Chatterjee.pdf
file_size: 351271
relation: main_file
file_date_updated: 2020-07-14T12:45:57Z
has_accepted_license: '1'
intvolume: ' 458'
isi: 1
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc-nd/4.0/
month: '11'
oa: 1
oa_version: Published Version
page: 49 - 60
project:
- _id: 2584A770-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: P 23499-N23
name: Modern Graph Algorithmic Techniques in Formal Verification
- _id: 25832EC2-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: S 11407_N23
name: Rigorous Systems Engineering
- _id: 2581B60A-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '279307'
name: 'Quantitative Graph Games: Theory and Applications'
- _id: 2587B514-B435-11E9-9278-68D0E5697425
name: Microsoft Research Faculty Fellowship
publication: Theoretical Computer Science
publication_status: published
publisher: Elsevier
publist_id: '3736'
pubrep_id: '935'
quality_controlled: '1'
related_material:
record:
- id: '3851'
relation: earlier_version
status: public
scopus_import: '1'
status: public
title: Energy parity games
tmp:
image: /images/cc_by_nc_nd.png
legal_code_url: https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode
name: Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
(CC BY-NC-ND 4.0)
short: CC BY-NC-ND (4.0)
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 458
year: '2012'
...
---
_id: '2974'
abstract:
- lang: eng
text: "We construct a perfectly binding string commitment scheme whose security
is based on the learning parity with noise (LPN) assumption, or equivalently,
the hardness of decoding random linear codes. Our scheme not only allows for a
simple and efficient zero-knowledge proof of knowledge for committed values (essentially
a Σ-protocol), but also for such proofs showing any kind of relation amongst committed
values, i.e. proving that messages m_0,...,m_u, are such that m_0=C(m_1,...,m_u)
for any circuit C.\r\n\r\nTo get soundness which is exponentially small in a security
parameter t, and when the zero-knowledge property relies on the LPN problem with
secrets of length l, our 3 round protocol has communication complexity O(t|C|l
log(l)) and computational complexity of O(t|C|l) bit operations. The hidden constants
are small, and the computation consists mostly of computing inner products of
bit-vectors."
acknowledgement: "We are grateful to Petros Mol for helpful discussions on the reduction
for the hardness of the xLPN problem.\r\n"
alternative_title:
- LNCS
author:
- first_name: Abhishek
full_name: Jain, Abhishek
last_name: Jain
- first_name: Stephan
full_name: Krenn, Stephan
id: 329FCCF0-F248-11E8-B48F-1D18A9856A87
last_name: Krenn
orcid: 0000-0003-2835-9093
- first_name: Krzysztof Z
full_name: Pietrzak, Krzysztof Z
id: 3E04A7AA-F248-11E8-B48F-1D18A9856A87
last_name: Pietrzak
orcid: 0000-0002-9139-1654
- first_name: Aris
full_name: Tentes, Aris
last_name: Tentes
citation:
ama: 'Jain A, Krenn S, Pietrzak KZ, Tentes A. Commitments and efficient zero knowledge
proofs from learning parity with noise. In: Wang X, Sako K, eds. Vol 7658. Springer;
2012:663-680. doi:10.1007/978-3-642-34961-4_40'
apa: 'Jain, A., Krenn, S., Pietrzak, K. Z., & Tentes, A. (2012). Commitments
and efficient zero knowledge proofs from learning parity with noise. In X. Wang
& K. Sako (Eds.) (Vol. 7658, pp. 663–680). Presented at the ASIACRYPT: Theory
and Application of Cryptology and Information Security, Beijing, China: Springer.
https://doi.org/10.1007/978-3-642-34961-4_40'
chicago: Jain, Abhishek, Stephan Krenn, Krzysztof Z Pietrzak, and Aris Tentes. “Commitments
and Efficient Zero Knowledge Proofs from Learning Parity with Noise.” edited by
Xiaoyun Wang and Kazue Sako, 7658:663–80. Springer, 2012. https://doi.org/10.1007/978-3-642-34961-4_40.
ieee: 'A. Jain, S. Krenn, K. Z. Pietrzak, and A. Tentes, “Commitments and efficient
zero knowledge proofs from learning parity with noise,” presented at the ASIACRYPT:
Theory and Application of Cryptology and Information Security, Beijing, China,
2012, vol. 7658, pp. 663–680.'
ista: 'Jain A, Krenn S, Pietrzak KZ, Tentes A. 2012. Commitments and efficient zero
knowledge proofs from learning parity with noise. ASIACRYPT: Theory and Application
of Cryptology and Information Security, LNCS, vol. 7658, 663–680.'
mla: Jain, Abhishek, et al. Commitments and Efficient Zero Knowledge Proofs from
Learning Parity with Noise. Edited by Xiaoyun Wang and Kazue Sako, vol. 7658,
Springer, 2012, pp. 663–80, doi:10.1007/978-3-642-34961-4_40.
short: A. Jain, S. Krenn, K.Z. Pietrzak, A. Tentes, in:, X. Wang, K. Sako (Eds.),
Springer, 2012, pp. 663–680.
conference:
end_date: 2012-12-06
location: Beijing, China
name: 'ASIACRYPT: Theory and Application of Cryptology and Information Security'
start_date: 2012-12-02
date_created: 2018-12-11T12:00:38Z
date_published: 2012-12-01T00:00:00Z
date_updated: 2021-01-12T07:40:11Z
day: '01'
ddc:
- '004'
- '005'
department:
- _id: KrPi
doi: 10.1007/978-3-642-34961-4_40
ec_funded: 1
editor:
- first_name: Xiaoyun
full_name: Wang, Xiaoyun
last_name: Wang
- first_name: Kazue
full_name: Sako, Kazue
last_name: Sako
file:
- access_level: open_access
checksum: ab879537385efc4cb4203e7ef0fea17b
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:14:00Z
date_updated: 2020-07-14T12:45:58Z
file_id: '5048'
file_name: IST-2016-721-v1+1_513.pdf
file_size: 482570
relation: main_file
file_date_updated: 2020-07-14T12:45:58Z
has_accepted_license: '1'
intvolume: ' 7658'
language:
- iso: eng
month: '12'
oa: 1
oa_version: Submitted Version
page: 663 - 680
project:
- _id: 258C570E-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '259668'
name: Provable Security for Physical Cryptography
publication_status: published
publisher: Springer
publist_id: '3730'
pubrep_id: '721'
scopus_import: 1
status: public
title: Commitments and efficient zero knowledge proofs from learning parity with noise
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: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 7658
year: '2012'
...
---
_id: '12198'
abstract:
- lang: eng
text: The Arabidopsis thaliana central cell, the companion cell of the egg, undergoes
DNA demethylation before fertilization, but the targeting preferences, mechanism,
and biological significance of this process remain unclear. Here, we show that
active DNA demethylation mediated by the DEMETER DNA glycosylase accounts for
all of the demethylation in the central cell and preferentially targets small,
AT-rich, and nucleosome-depleted euchromatic transposable elements. The vegetative
cell, the companion cell of sperm, also undergoes DEMETER-dependent demethylation
of similar sequences, and lack of DEMETER in vegetative cells causes reduced small
RNA–directed DNA methylation of transposons in sperm. Our results demonstrate
that demethylation in companion cells reinforces transposon methylation in plant
gametes and likely contributes to stable silencing of transposable elements across
generations.
acknowledgement: We thank S. Harmer for assistance with the analysis of histone modifications,
the BioOptics team at the Vienna Biocenter Campus for sorting sperm and vegetative
cell nuclei, K. Slotkin for the LAT52p-amiRNA=GFP plasmid, and G. Drews for the
DD45p-GFP transgenic line. This work was partially funded by an NIH grant (GM69415)
to R.L.F., NSF grants (MCB-0918821 and IOS-1025890) to R.L.F. and D.Z., a Young
Investigator Grant from the Arnold and Mabel Beckman Foundation to D.Z., an Austrian
Science Fund (FWF) grant P21389-B03 to H.T., a Ruth L. Kirschstein NIH Predoctoral
Fellowship (GM093633) to C.A.I., a Fulbright Scholarship to J.A.R., a fellowship
from the Jane Coffin Childs Memorial Fund to A.Z., and a Robert and Colleen Haas
Scholarship to D.R. Sequencing data are deposited in GEO (GSE38935).
article_processing_charge: No
article_type: original
author:
- first_name: Christian A.
full_name: Ibarra, Christian A.
last_name: Ibarra
- first_name: Xiaoqi
full_name: Feng, Xiaoqi
id: e0164712-22ee-11ed-b12a-d80fcdf35958
last_name: Feng
orcid: 0000-0002-4008-1234
- first_name: Vera K.
full_name: Schoft, Vera K.
last_name: Schoft
- first_name: Tzung-Fu
full_name: Hsieh, Tzung-Fu
last_name: Hsieh
- first_name: Rie
full_name: Uzawa, Rie
last_name: Uzawa
- first_name: Jessica A.
full_name: Rodrigues, Jessica A.
last_name: Rodrigues
- first_name: Assaf
full_name: Zemach, Assaf
last_name: Zemach
- first_name: Nina
full_name: Chumak, Nina
last_name: Chumak
- first_name: Adriana
full_name: Machlicova, Adriana
last_name: Machlicova
- first_name: Toshiro
full_name: Nishimura, Toshiro
last_name: Nishimura
- first_name: Denisse
full_name: Rojas, Denisse
last_name: Rojas
- first_name: Robert L.
full_name: Fischer, Robert L.
last_name: Fischer
- first_name: Hisashi
full_name: Tamaru, Hisashi
last_name: Tamaru
- first_name: Daniel
full_name: Zilberman, Daniel
id: 6973db13-dd5f-11ea-814e-b3e5455e9ed1
last_name: Zilberman
orcid: 0000-0002-0123-8649
citation:
ama: Ibarra CA, Feng X, Schoft VK, et al. Active DNA demethylation in plant companion
cells reinforces transposon methylation in gametes. Science. 2012;337(6100):1360-1364.
doi:10.1126/science.1224839
apa: Ibarra, C. A., Feng, X., Schoft, V. K., Hsieh, T.-F., Uzawa, R., Rodrigues,
J. A., … Zilberman, D. (2012). Active DNA demethylation in plant companion cells
reinforces transposon methylation in gametes. Science. American Association
for the Advancement of Science. https://doi.org/10.1126/science.1224839
chicago: Ibarra, Christian A., Xiaoqi Feng, Vera K. Schoft, Tzung-Fu Hsieh, Rie
Uzawa, Jessica A. Rodrigues, Assaf Zemach, et al. “Active DNA Demethylation in
Plant Companion Cells Reinforces Transposon Methylation in Gametes.” Science.
American Association for the Advancement of Science, 2012. https://doi.org/10.1126/science.1224839.
ieee: C. A. Ibarra et al., “Active DNA demethylation in plant companion cells
reinforces transposon methylation in gametes,” Science, vol. 337, no. 6100.
American Association for the Advancement of Science, pp. 1360–1364, 2012.
ista: Ibarra CA, Feng X, Schoft VK, Hsieh T-F, Uzawa R, Rodrigues JA, Zemach A,
Chumak N, Machlicova A, Nishimura T, Rojas D, Fischer RL, Tamaru H, Zilberman
D. 2012. Active DNA demethylation in plant companion cells reinforces transposon
methylation in gametes. Science. 337(6100), 1360–1364.
mla: Ibarra, Christian A., et al. “Active DNA Demethylation in Plant Companion Cells
Reinforces Transposon Methylation in Gametes.” Science, vol. 337, no. 6100,
American Association for the Advancement of Science, 2012, pp. 1360–64, doi:10.1126/science.1224839.
short: C.A. Ibarra, X. Feng, V.K. Schoft, T.-F. Hsieh, R. Uzawa, J.A. Rodrigues,
A. Zemach, N. Chumak, A. Machlicova, T. Nishimura, D. Rojas, R.L. Fischer, H.
Tamaru, D. Zilberman, Science 337 (2012) 1360–1364.
date_created: 2023-01-16T09:21:24Z
date_published: 2012-09-14T00:00:00Z
date_updated: 2025-01-14T12:37:28Z
day: '14'
department:
- _id: XiFe
doi: 10.1126/science.1224839
extern: '1'
external_id:
pmid:
- '22984074'
intvolume: ' 337'
issue: '6100'
keyword:
- Multidisciplinary
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4034762/
month: '09'
oa: 1
oa_version: Published Version
page: 1360-1364
pmid: 1
publication: Science
publication_identifier:
eissn:
- 1095-9203
issn:
- 0036-8075
publication_status: published
publisher: American Association for the Advancement of Science
quality_controlled: '1'
scopus_import: '1'
status: public
title: Active DNA demethylation in plant companion cells reinforces transposon methylation
in gametes
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 337
year: '2012'
...
---
_id: '12644'
abstract:
- lang: eng
text: In the Dry Andes of central Chile, summer water resources originate mostly
from snowmelt and ice melt. We use the physically based, spatially distributed
hydrological model TOPKAPI to study the exchange between glaciers and climate
in the upper Aconcagua River Basin during the summer season and identify the model
parameters that are robust and transferable and those that are more dependent
on calibration. TOPKAPI has recently been adapted to incorporate an enhanced temperature
index approach for snow and ice melting. We suggest a calibration procedure that
allows calibration of parameters in three steps by separating parameters governing
distinct processes. We evaluate the parameters' transferability in time and in
space by applying the model at two spatial scales. TOPKAPI's ability to simulate
the relevant processes is tested against meteorological, ablation, and glacier
runoff data measured on Juncal Norte Glacier during two glacier ablation seasons.
The model was applied successfully to the climatic setting of the Dry Andes once
its parameters were recalibrated. We found a clear distinction between parameters
that are stable in time and those that need recalibration. The parameters of the
melt model are transferable from one season to the other, while the parameters
governing the extrapolation of meteorological input data and the routing of glacier
meltwater need recalibration from one season to the other. Sensitivity analysis
revealed that the model is most sensitive to the temperature lapse rate governing
the extrapolation of air temperature from point measurements to the glacier scale
and to the melt parameter that multiplies the shortwave radiation balance.
article_number: W03509
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
citation:
ama: 'Ragettli S, Pellicciotti F. Calibration of a physically based, spatially distributed
hydrological model in a glacierized basin: On the use of knowledge from glaciometeorological
processes to constrain model parameters. Water Resources Research. 2012;48(3).
doi:10.1029/2011wr010559'
apa: 'Ragettli, S., & Pellicciotti, F. (2012). Calibration of a physically based,
spatially distributed hydrological model in a glacierized basin: On the use of
knowledge from glaciometeorological processes to constrain model parameters. Water
Resources Research. American Geophysical Union. https://doi.org/10.1029/2011wr010559'
chicago: 'Ragettli, S., and Francesca Pellicciotti. “Calibration of a Physically
Based, Spatially Distributed Hydrological Model in a Glacierized Basin: On the
Use of Knowledge from Glaciometeorological Processes to Constrain Model Parameters.”
Water Resources Research. American Geophysical Union, 2012. https://doi.org/10.1029/2011wr010559.'
ieee: 'S. Ragettli and F. Pellicciotti, “Calibration of a physically based, spatially
distributed hydrological model in a glacierized basin: On the use of knowledge
from glaciometeorological processes to constrain model parameters,” Water Resources
Research, vol. 48, no. 3. American Geophysical Union, 2012.'
ista: 'Ragettli S, Pellicciotti F. 2012. Calibration of a physically based, spatially
distributed hydrological model in a glacierized basin: On the use of knowledge
from glaciometeorological processes to constrain model parameters. Water Resources
Research. 48(3), W03509.'
mla: 'Ragettli, S., and Francesca Pellicciotti. “Calibration of a Physically Based,
Spatially Distributed Hydrological Model in a Glacierized Basin: On the Use of
Knowledge from Glaciometeorological Processes to Constrain Model Parameters.”
Water Resources Research, vol. 48, no. 3, W03509, American Geophysical
Union, 2012, doi:10.1029/2011wr010559.'
short: S. Ragettli, F. Pellicciotti, Water Resources Research 48 (2012).
date_created: 2023-02-20T08:17:39Z
date_published: 2012-03-01T00:00:00Z
date_updated: 2023-02-21T09:38:36Z
day: '01'
doi: 10.1029/2011wr010559
extern: '1'
intvolume: ' 48'
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1029/2011WR010559
month: '03'
oa: 1
oa_version: Published Version
publication: Water Resources Research
publication_identifier:
issn:
- 0043-1397
publication_status: published
publisher: American Geophysical Union
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Calibration of a physically based, spatially distributed hydrological model
in a glacierized basin: On the use of knowledge from glaciometeorological processes
to constrain model parameters'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 48
year: '2012'
...
---
_id: '12646'
abstract:
- lang: eng
text: Assessment of water resources from remote mountainous catchments plays a crucial
role for the development of rural areas in or in the vicinity of mountain ranges.
The scarcity of data, however, prevents the application of standard approaches
that are based on data-driven models. The Hindu Kush–Karakoram–Himalaya mountain
range is a crucial area in terms of water resources, but our understanding of
the response of its high-elevation catchments to a changing climate is hindered
by lack of hydro-meteorological and cryospheric data. Hydrological modeling is
challenging here because internal inconsistencies—such as an underestimation of
precipitation input that can be compensated for by an overestimation of meltwater—might
be hidden due to the complexity of feedback mechanisms that govern melt and runoff
generation in such basins. Data scarcity adds to this difficulty by preventing
the application of systematic calibration procedures that would allow identification
of the parameter set that could guarantee internal consistency in the simulation
of the single hydrological components. In this work, we use simulations from the
Hunza River Basin in the Karakoram region obtained with the hydrological model
TOPKAPI to quantify the predictive power of discharge and snow-cover data sets,
as well as the combination of both. We also show that short-term measurements
of meteorological variables such as radiative fluxes, wind speed, relative humidity,
and air temperature from glacio-meteorological experiments are crucial for a correct
parameterization of surface melt processes. They enable detailed simulations of
the energy fluxes governing glacier–atmosphere interaction and the resulting ablation
through energy-balance modeling. These simulations are used to derive calibrated
parameters for the simplified snow and glacier routines in TOPKAPI. We demonstrate
that such parameters are stable in space and time in similar climatic regions,
thus reducing the number of parameters requiring calibration.
article_processing_charge: No
article_type: original
author:
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
orcid: 0000-0002-5554-8087
- first_name: Cyrill
full_name: Buergi, Cyrill
last_name: Buergi
- first_name: Walter Willem
full_name: Immerzeel, Walter Willem
last_name: Immerzeel
- first_name: Markus
full_name: Konz, Markus
last_name: Konz
- first_name: Arun B.
full_name: Shrestha, Arun B.
last_name: Shrestha
citation:
ama: 'Pellicciotti F, Buergi C, Immerzeel WW, Konz M, Shrestha AB. Challenges and
uncertainties in hydrological modeling of remote Hindu Kush–Karakoram–Himalayan
(HKH) basins: Suggestions for calibration strategies. Mountain Research and
Development. 2012;32(1):39-50. doi:10.1659/mrd-journal-d-11-00092.1'
apa: 'Pellicciotti, F., Buergi, C., Immerzeel, W. W., Konz, M., & Shrestha,
A. B. (2012). Challenges and uncertainties in hydrological modeling of remote
Hindu Kush–Karakoram–Himalayan (HKH) basins: Suggestions for calibration strategies.
Mountain Research and Development. International Mountain Society. https://doi.org/10.1659/mrd-journal-d-11-00092.1'
chicago: 'Pellicciotti, Francesca, Cyrill Buergi, Walter Willem Immerzeel, Markus
Konz, and Arun B. Shrestha. “Challenges and Uncertainties in Hydrological Modeling
of Remote Hindu Kush–Karakoram–Himalayan (HKH) Basins: Suggestions for Calibration
Strategies.” Mountain Research and Development. International Mountain
Society, 2012. https://doi.org/10.1659/mrd-journal-d-11-00092.1.'
ieee: 'F. Pellicciotti, C. Buergi, W. W. Immerzeel, M. Konz, and A. B. Shrestha,
“Challenges and uncertainties in hydrological modeling of remote Hindu Kush–Karakoram–Himalayan
(HKH) basins: Suggestions for calibration strategies,” Mountain Research and
Development, vol. 32, no. 1. International Mountain Society, pp. 39–50, 2012.'
ista: 'Pellicciotti F, Buergi C, Immerzeel WW, Konz M, Shrestha AB. 2012. Challenges
and uncertainties in hydrological modeling of remote Hindu Kush–Karakoram–Himalayan
(HKH) basins: Suggestions for calibration strategies. Mountain Research and Development.
32(1), 39–50.'
mla: 'Pellicciotti, Francesca, et al. “Challenges and Uncertainties in Hydrological
Modeling of Remote Hindu Kush–Karakoram–Himalayan (HKH) Basins: Suggestions for
Calibration Strategies.” Mountain Research and Development, vol. 32, no.
1, International Mountain Society, 2012, pp. 39–50, doi:10.1659/mrd-journal-d-11-00092.1.'
short: F. Pellicciotti, C. Buergi, W.W. Immerzeel, M. Konz, A.B. Shrestha, Mountain
Research and Development 32 (2012) 39–50.
date_created: 2023-02-20T08:17:47Z
date_published: 2012-02-01T00:00:00Z
date_updated: 2024-10-14T12:01:31Z
day: '01'
doi: 10.1659/mrd-journal-d-11-00092.1
extern: '1'
intvolume: ' 32'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1659/MRD-JOURNAL-D-11-00092.1
month: '02'
oa: 1
oa_version: Published Version
page: 39-50
publication: Mountain Research and Development
publication_identifier:
eissn:
- 1994-7151
issn:
- 0276-4741
publication_status: published
publisher: International Mountain Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Challenges and uncertainties in hydrological modeling of remote Hindu Kush–Karakoram–Himalayan
(HKH) basins: Suggestions for calibration strategies'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 32
year: '2012'
...
---
_id: '12647'
abstract:
- lang: eng
text: Accurate quantification of the spatial distribution of precipitation in mountain
regions is crucial for assessments of water resources and for the understanding
of high-altitude hydrology, yet it is one of the largest unknowns due to the lack
of high-altitude observations. The Hunza basin in Pakistan contains very large
glacier systems, which, given the melt, cannot persist unless precipitation (snow
input) is much higher than what is observed at the meteorological stations, mostly
located in mountain valleys. Several studies, therefore, suggest strong positive
vertical precipitation lapse rates; in the present study, we quantify this lapse
rate by using glaciers as a proxy. We assume a neutral mass balance for the glaciers
for the period from 2001 to 2003, and we inversely model the precipitation lapse
by balancing the total accumulation in the catchment area and the ablation over
the glacier area for the 50 largest glacier systems in the Hunza basin in the
Karakoram. Our results reveal a vertical precipitation lapse rate that equals
0.21 ± 0.12% m−1, with a maximum precipitation at an elevation of 5500 masl. We
showed that the total annual basin precipitation (828 mm) is 260% higher than
what is estimated based on interpolated observations (319 mm); this has major
consequences for hydrological modeling and water resource assessments in general.
Our results were validated by using previously published studies on individual
glaciers as well as the water balance of the Hunza basin. The approach is more
widely applicable in mountain ranges where precipitation measurements at high
altitude are lacking.
article_processing_charge: No
article_type: original
author:
- first_name: Walter Willem
full_name: Immerzeel, Walter Willem
last_name: Immerzeel
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
- first_name: Arun B.
full_name: Shrestha, Arun B.
last_name: Shrestha
citation:
ama: Immerzeel WW, Pellicciotti F, Shrestha AB. Glaciers as a proxy to quantify
the spatial distribution of precipitation in the Hunza basin. Mountain Research
and Development. 2012;32(1):30-38. doi:10.1659/mrd-journal-d-11-00097.1
apa: Immerzeel, W. W., Pellicciotti, F., & Shrestha, A. B. (2012). Glaciers
as a proxy to quantify the spatial distribution of precipitation in the Hunza
basin. Mountain Research and Development. International Mountain Society.
https://doi.org/10.1659/mrd-journal-d-11-00097.1
chicago: Immerzeel, Walter Willem, Francesca Pellicciotti, and Arun B. Shrestha.
“Glaciers as a Proxy to Quantify the Spatial Distribution of Precipitation in
the Hunza Basin.” Mountain Research and Development. International Mountain
Society, 2012. https://doi.org/10.1659/mrd-journal-d-11-00097.1.
ieee: W. W. Immerzeel, F. Pellicciotti, and A. B. Shrestha, “Glaciers as a proxy
to quantify the spatial distribution of precipitation in the Hunza basin,” Mountain
Research and Development, vol. 32, no. 1. International Mountain Society,
pp. 30–38, 2012.
ista: Immerzeel WW, Pellicciotti F, Shrestha AB. 2012. Glaciers as a proxy to quantify
the spatial distribution of precipitation in the Hunza basin. Mountain Research
and Development. 32(1), 30–38.
mla: Immerzeel, Walter Willem, et al. “Glaciers as a Proxy to Quantify the Spatial
Distribution of Precipitation in the Hunza Basin.” Mountain Research and Development,
vol. 32, no. 1, International Mountain Society, 2012, pp. 30–38, doi:10.1659/mrd-journal-d-11-00097.1.
short: W.W. Immerzeel, F. Pellicciotti, A.B. Shrestha, Mountain Research and Development
32 (2012) 30–38.
date_created: 2023-02-20T08:17:52Z
date_published: 2012-02-01T00:00:00Z
date_updated: 2023-02-21T08:56:29Z
day: '01'
doi: 10.1659/mrd-journal-d-11-00097.1
extern: '1'
intvolume: ' 32'
issue: '1'
keyword:
- General Environmental Science
- Development
- Environmental Chemistry
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1659/MRD-JOURNAL-D-11-00097.1
month: '02'
oa: 1
oa_version: Published Version
page: 30-38
publication: Mountain Research and Development
publication_identifier:
eissn:
- 1994-7151
issn:
- 0276-4741
publication_status: published
publisher: International Mountain Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Glaciers as a proxy to quantify the spatial distribution of precipitation in
the Hunza basin
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 32
year: '2012'
...
---
_id: '12648'
abstract:
- lang: eng
text: Distributed glacier melt models generally assume that the glacier surface
consists of bare exposed ice and snow. In reality, many glaciers are wholly or
partially covered in layers of debris that tend to suppress ablation rates. In
this paper, an existing physically based point model for the ablation of debris-covered
ice is incorporated in a distributed melt model and applied to Haut Glacier d'Arolla,
Switzerland, which has three large patches of debris cover on its surface. The
model is based on a 10 m resolution digital elevation model (DEM) of the area;
each glacier pixel in the DEM is defined as either bare or debris-covered ice,
and may be covered in snow that must be melted off before ice ablation is assumed
to occur. Each debris-covered pixel is assigned a debris thickness value using
probability distributions based on over 1000 manual thickness measurements. Locally
observed meteorological data are used to run energy balance calculations in every
pixel, using an approach suitable for snow, bare ice or debris-covered ice as
appropriate. The use of the debris model significantly reduces the total ablation
in the debris-covered areas, however the precise reduction is sensitive to the
temperature extrapolation used in the model distribution because air near the
debris surface tends to be slightly warmer than over bare ice. Overall results
suggest that the debris patches, which cover 10% of the glacierized area, reduce
total runoff from the glacierized part of the basin by up to 7%.
article_number: D18105
article_processing_charge: No
article_type: original
author:
- first_name: T. D.
full_name: Reid, T. D.
last_name: Reid
- first_name: M.
full_name: Carenzo, M.
last_name: Carenzo
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
- first_name: B. W.
full_name: Brock, B. W.
last_name: Brock
citation:
ama: 'Reid TD, Carenzo M, Pellicciotti F, Brock BW. Including debris cover effects
in a distributed model of glacier ablation. Journal of Geophysical Research:
Atmospheres. 2012;117(D18). doi:10.1029/2012jd017795'
apa: 'Reid, T. D., Carenzo, M., Pellicciotti, F., & Brock, B. W. (2012). Including
debris cover effects in a distributed model of glacier ablation. Journal of
Geophysical Research: Atmospheres. American Geophysical Union. https://doi.org/10.1029/2012jd017795'
chicago: 'Reid, T. D., M. Carenzo, Francesca Pellicciotti, and B. W. Brock. “Including
Debris Cover Effects in a Distributed Model of Glacier Ablation.” Journal of
Geophysical Research: Atmospheres. American Geophysical Union, 2012. https://doi.org/10.1029/2012jd017795.'
ieee: 'T. D. Reid, M. Carenzo, F. Pellicciotti, and B. W. Brock, “Including debris
cover effects in a distributed model of glacier ablation,” Journal of Geophysical
Research: Atmospheres, vol. 117, no. D18. American Geophysical Union, 2012.'
ista: 'Reid TD, Carenzo M, Pellicciotti F, Brock BW. 2012. Including debris cover
effects in a distributed model of glacier ablation. Journal of Geophysical Research:
Atmospheres. 117(D18), D18105.'
mla: 'Reid, T. D., et al. “Including Debris Cover Effects in a Distributed Model
of Glacier Ablation.” Journal of Geophysical Research: Atmospheres, vol.
117, no. D18, D18105, American Geophysical Union, 2012, doi:10.1029/2012jd017795.'
short: 'T.D. Reid, M. Carenzo, F. Pellicciotti, B.W. Brock, Journal of Geophysical
Research: Atmospheres 117 (2012).'
date_created: 2023-02-20T08:17:57Z
date_published: 2012-09-27T00:00:00Z
date_updated: 2023-02-20T10:57:31Z
day: '27'
doi: 10.1029/2012jd017795
extern: '1'
intvolume: ' 117'
issue: D18
keyword:
- Paleontology
- Space and Planetary Science
- Earth and Planetary Sciences (miscellaneous)
- Atmospheric Science
- Earth-Surface Processes
- Geochemistry and Petrology
- Soil Science
- Water Science and Technology
- Ecology
- Aquatic Science
- Forestry
- Oceanography
- Geophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1029/2012JD017795
month: '09'
oa: 1
oa_version: Published Version
publication: 'Journal of Geophysical Research: Atmospheres'
publication_identifier:
issn:
- 0148-0227
publication_status: published
publisher: American Geophysical Union
quality_controlled: '1'
scopus_import: '1'
status: public
title: Including debris cover effects in a distributed model of glacier ablation
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 117
year: '2012'
...
---
_id: '13075'
abstract:
- lang: eng
text: Little is known about the stability of trophic relationships in complex natural
communities over evolutionary timescales. Here, we use sequence data from 18 nuclear
loci to reconstruct and compare the intraspecific histories of major Pleistocene
refugial populations in the Middle East, the Balkans and Iberia in a guild of
four Chalcid parasitoids (Cecidostiba fungosa, C. semifascia, Hobbya stenonota
and Mesopolobus amaenus) all attacking Cynipid oak galls. We develop a likelihood
method to numerically estimate models of divergence between three populations
from multilocus data. We investigate the power of this framework on simulated
data, and - using triplet alignments of intronic loci - quantify the support for
all possible divergence relationships between refugial populations in the four
parasitoids. Although an East to West order of population divergence has highest
support in all but one species, we cannot rule out alternative population tree
topologies. Comparing the estimated times of population splits between species,
we find that one species, M. amaenus, has a significantly older history than the
rest of the guild and must have arrived in central Europe at least one glacial
cycle prior to other guild members. This suggests that although all four species
may share a common origin in the East, they expanded westwards into Europe at
different times.
article_processing_charge: No
author:
- first_name: Konrad
full_name: Lohse, Konrad
last_name: Lohse
- first_name: Nicholas H
full_name: Barton, Nicholas H
id: 4880FE40-F248-11E8-B48F-1D18A9856A87
last_name: Barton
orcid: 0000-0002-8548-5240
- first_name: Graham
full_name: Stone, Graham
last_name: Stone
- first_name: George
full_name: Melika, George
last_name: Melika
citation:
ama: 'Lohse K, Barton NH, Stone G, Melika G. Data from: A likelihood-based comparison
of population histories in a parasitoid guild. 2012. doi:10.5061/DRYAD.0G0FS'
apa: 'Lohse, K., Barton, N. H., Stone, G., & Melika, G. (2012). Data from: A
likelihood-based comparison of population histories in a parasitoid guild. Dryad.
https://doi.org/10.5061/DRYAD.0G0FS'
chicago: 'Lohse, Konrad, Nicholas H Barton, Graham Stone, and George Melika. “Data
from: A Likelihood-Based Comparison of Population Histories in a Parasitoid Guild.”
Dryad, 2012. https://doi.org/10.5061/DRYAD.0G0FS.'
ieee: 'K. Lohse, N. H. Barton, G. Stone, and G. Melika, “Data from: A likelihood-based
comparison of population histories in a parasitoid guild.” Dryad, 2012.'
ista: 'Lohse K, Barton NH, Stone G, Melika G. 2012. Data from: A likelihood-based
comparison of population histories in a parasitoid guild, Dryad, 10.5061/DRYAD.0G0FS.'
mla: 'Lohse, Konrad, et al. Data from: A Likelihood-Based Comparison of Population
Histories in a Parasitoid Guild. Dryad, 2012, doi:10.5061/DRYAD.0G0FS.'
short: K. Lohse, N.H. Barton, G. Stone, G. Melika, (2012).
date_created: 2023-05-23T17:01:02Z
date_published: 2012-06-08T00:00:00Z
date_updated: 2025-09-30T08:04:02Z
day: '08'
ddc:
- '570'
department:
- _id: NiBa
doi: 10.5061/DRYAD.0G0FS
license: https://creativecommons.org/publicdomain/zero/1.0/
main_file_link:
- open_access: '1'
url: https://doi.org/10.5061/dryad.0g0fs
month: '06'
oa: 1
oa_version: Published Version
publisher: Dryad
related_material:
record:
- id: '2968'
relation: used_in_publication
status: public
status: public
title: 'Data from: A likelihood-based comparison of population histories in a parasitoid
guild'
tmp:
image: /images/cc_0.png
legal_code_url: https://creativecommons.org/publicdomain/zero/1.0/legalcode
name: Creative Commons Public Domain Dedication (CC0 1.0)
short: CC0 (1.0)
type: research_data_reference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2012'
...
---
_id: '2101'
abstract:
- lang: eng
text: 'Articulated deformable characters are widespread in computer animation. Unfortunately,
we lack methods for their automatic fabrication using modern additive manufacturing
(AM) technologies. We propose a method that takes a skinned mesh as input, then
estimates a fabricatable single-material model that approximates the 3D kinematics
of the corresponding virtual articulated character in a piecewise linear manner.
We first extract a set of potential joint locations. From this set, together with
optional, user-specified range constraints, we then estimate mechanical friction
joints that satisfy inter-joint non-penetration and other fabrication constraints.
To avoid brittle joint designs, we place joint centers on an approximate medial
axis representation of the input geometry, and maximize each joint''s minimal
cross-sectional area. We provide several demonstrations, manufactured as single,
assembled pieces using 3D printers. '
acknowledgement: This work was partially supported by NSF grant IIS-1116619. Doug
James acknowledges support from Pixar and a fellowship from the John Simon Guggenheim
Memorial Foundation
author:
- first_name: Moritz
full_name: Bac̈her, Moritz
last_name: Bac̈Her
- first_name: Bernd
full_name: Bernd Bickel
id: 49876194-F248-11E8-B48F-1D18A9856A87
last_name: Bickel
orcid: 0000-0001-6511-9385
- first_name: Doug
full_name: James, Doug L
last_name: James
- first_name: Hanspeter
full_name: Pfister, Hanspeter
last_name: Pfister
citation:
ama: Bac̈Her M, Bickel B, James D, Pfister H. Fabricating articulated characters
from skinned meshes. ACM Transactions on Graphics. 2012;31(4). doi:10.1145/2185520.2185543
apa: Bac̈Her, M., Bickel, B., James, D., & Pfister, H. (2012). Fabricating articulated
characters from skinned meshes. ACM Transactions on Graphics. ACM. https://doi.org/10.1145/2185520.2185543
chicago: Bac̈Her, Moritz, Bernd Bickel, Doug James, and Hanspeter Pfister. “Fabricating
Articulated Characters from Skinned Meshes.” ACM Transactions on Graphics.
ACM, 2012. https://doi.org/10.1145/2185520.2185543.
ieee: M. Bac̈Her, B. Bickel, D. James, and H. Pfister, “Fabricating articulated
characters from skinned meshes,” ACM Transactions on Graphics, vol. 31,
no. 4. ACM, 2012.
ista: Bac̈Her M, Bickel B, James D, Pfister H. 2012. Fabricating articulated characters
from skinned meshes. ACM Transactions on Graphics. 31(4).
mla: Bac̈Her, Moritz, et al. “Fabricating Articulated Characters from Skinned Meshes.”
ACM Transactions on Graphics, vol. 31, no. 4, ACM, 2012, doi:10.1145/2185520.2185543.
short: M. Bac̈Her, B. Bickel, D. James, H. Pfister, ACM Transactions on Graphics
31 (2012).
date_created: 2018-12-11T11:55:43Z
date_published: 2012-01-01T00:00:00Z
date_updated: 2021-01-12T06:55:19Z
day: '01'
doi: 10.1145/2185520.2185543
extern: 1
intvolume: ' 31'
issue: '4'
month: '01'
publication: ACM Transactions on Graphics
publication_status: published
publisher: ACM
publist_id: '4933'
quality_controlled: 0
status: public
title: Fabricating articulated characters from skinned meshes
type: journal_article
volume: 31
year: '2012'
...
---
_id: '2102'
abstract:
- lang: eng
text: 'We propose a complete process for designing, simulating, and fabricating
synthetic skin for an animatronics character that mimics the face of a given subject
and its expressions. The process starts with measuring the elastic properties
of a material used to manufacture synthetic soft tissue. Given these measurements
we use physicsbased simulation to predict the behavior of a face when it is driven
by the underlying robotic actuation. Next, we capture 3D facial expressions for
a given target subject. As the key component of our process, we present a novel
optimization scheme that determines the shape of the synthetic skin as well as
the actuation parameters that provide the best match to the target expressions.
We demonstrate this computational skin design by physically cloning a real human
face onto an animatronics figure. '
acknowledgement: This work was supported in part by the NCCR Co-Me of the Swiss NSF
author:
- first_name: Bernd
full_name: Bernd Bickel
id: 49876194-F248-11E8-B48F-1D18A9856A87
last_name: Bickel
orcid: 0000-0001-6511-9385
- first_name: Peter
full_name: Kaufmann, Peter
last_name: Kaufmann
- first_name: Mélina
full_name: Skouras, Mélina
last_name: Skouras
- first_name: Bernhard
full_name: Thomaszewski, Bernhard
last_name: Thomaszewski
- first_name: Derek
full_name: Bradley, Derek J
last_name: Bradley
- first_name: Thabo
full_name: Beeler, Thabo
last_name: Beeler
- first_name: Philip
full_name: Jackson, Philip V
last_name: Jackson
- first_name: Steve
full_name: Marschner, Steve
last_name: Marschner
- first_name: Wojciech
full_name: Matusik, Wojciech
last_name: Matusik
- first_name: Markus
full_name: Groß, Markus S
last_name: Groß
citation:
ama: Bickel B, Kaufmann P, Skouras M, et al. Physical face cloning. ACM Transactions
on Graphics. 2012;31(4). doi:10.1145/2185520.2185614
apa: Bickel, B., Kaufmann, P., Skouras, M., Thomaszewski, B., Bradley, D., Beeler,
T., … Groß, M. (2012). Physical face cloning. ACM Transactions on Graphics.
ACM. https://doi.org/10.1145/2185520.2185614
chicago: Bickel, Bernd, Peter Kaufmann, Mélina Skouras, Bernhard Thomaszewski, Derek
Bradley, Thabo Beeler, Philip Jackson, Steve Marschner, Wojciech Matusik, and
Markus Groß. “Physical Face Cloning.” ACM Transactions on Graphics. ACM,
2012. https://doi.org/10.1145/2185520.2185614.
ieee: B. Bickel et al., “Physical face cloning,” ACM Transactions on Graphics,
vol. 31, no. 4. ACM, 2012.
ista: Bickel B, Kaufmann P, Skouras M, Thomaszewski B, Bradley D, Beeler T, Jackson
P, Marschner S, Matusik W, Groß M. 2012. Physical face cloning. ACM Transactions
on Graphics. 31(4).
mla: Bickel, Bernd, et al. “Physical Face Cloning.” ACM Transactions on Graphics,
vol. 31, no. 4, ACM, 2012, doi:10.1145/2185520.2185614.
short: B. Bickel, P. Kaufmann, M. Skouras, B. Thomaszewski, D. Bradley, T. Beeler,
P. Jackson, S. Marschner, W. Matusik, M. Groß, ACM Transactions on Graphics 31
(2012).
date_created: 2018-12-11T11:55:43Z
date_published: 2012-07-04T00:00:00Z
date_updated: 2021-01-12T06:55:19Z
day: '04'
doi: 10.1145/2185520.2185614
extern: 1
intvolume: ' 31'
issue: '4'
month: '07'
publication: ACM Transactions on Graphics
publication_status: published
publisher: ACM
publist_id: '4931'
quality_controlled: 0
status: public
title: Physical face cloning
type: journal_article
volume: 31
year: '2012'
...
---
_id: '2103'
abstract:
- lang: eng
text: Although facial hair plays an important role in individual expression, facial-hair
reconstruction is not addressed by current facecapture systems. Our research addresses
this limitation with an algorithm that treats hair and skin surface capture together
in a coupled fashion so that a high-quality representation of hair fibers as well
as the underlying skin surface can be reconstructed. We propose a passive, camera-based
system that is robust against arbitrary motion since all data is acquired within
the time period of a single exposure. Our reconstruction algorithm detects and
traces hairs in the captured images and reconstructs them in 3D using a multiview
stereo approach. Our coupled skin-reconstruction algorithm uses information about
the detected hairs to deliver a skin surface that lies underneath all hairs irrespective
of occlusions. In dense regions like eyebrows, we employ a hair-synthesis method
to create hair fibers that plausibly match the image data. We demonstrate our
scanning system on a number of individuals and show that it can successfully reconstruct
a variety of facial-hair styles together with the underlying skin surface.
author:
- first_name: Thabo
full_name: Beeler, Thabo
last_name: Beeler
- first_name: Bernd
full_name: Bernd Bickel
id: 49876194-F248-11E8-B48F-1D18A9856A87
last_name: Bickel
orcid: 0000-0001-6511-9385
- first_name: Gioacchino
full_name: Noris, Gioacchino
last_name: Noris
- first_name: Paul
full_name: Beardsley, Paul A
last_name: Beardsley
- first_name: Steve
full_name: Marschner, Steve
last_name: Marschner
- first_name: Robert
full_name: Sumner, Robert W
last_name: Sumner
- first_name: Markus
full_name: Groß, Markus S
last_name: Groß
citation:
ama: Beeler T, Bickel B, Noris G, et al. Coupled 3D reconstruction of sparse facial
hair and skin. ACM Transactions on Graphics. 2012;31(4). doi:10.1145/2185520.2185613
apa: Beeler, T., Bickel, B., Noris, G., Beardsley, P., Marschner, S., Sumner, R.,
& Groß, M. (2012). Coupled 3D reconstruction of sparse facial hair and skin.
ACM Transactions on Graphics. ACM. https://doi.org/10.1145/2185520.2185613
chicago: Beeler, Thabo, Bernd Bickel, Gioacchino Noris, Paul Beardsley, Steve Marschner,
Robert Sumner, and Markus Groß. “Coupled 3D Reconstruction of Sparse Facial Hair
and Skin.” ACM Transactions on Graphics. ACM, 2012. https://doi.org/10.1145/2185520.2185613.
ieee: T. Beeler et al., “Coupled 3D reconstruction of sparse facial hair
and skin,” ACM Transactions on Graphics, vol. 31, no. 4. ACM, 2012.
ista: Beeler T, Bickel B, Noris G, Beardsley P, Marschner S, Sumner R, Groß M. 2012.
Coupled 3D reconstruction of sparse facial hair and skin. ACM Transactions on
Graphics. 31(4).
mla: Beeler, Thabo, et al. “Coupled 3D Reconstruction of Sparse Facial Hair and
Skin.” ACM Transactions on Graphics, vol. 31, no. 4, ACM, 2012, doi:10.1145/2185520.2185613.
short: T. Beeler, B. Bickel, G. Noris, P. Beardsley, S. Marschner, R. Sumner, M.
Groß, ACM Transactions on Graphics 31 (2012).
date_created: 2018-12-11T11:55:44Z
date_published: 2012-01-01T00:00:00Z
date_updated: 2021-01-12T06:55:20Z
day: '01'
doi: 10.1145/2185520.2185613
extern: 1
intvolume: ' 31'
issue: '4'
month: '01'
publication: ACM Transactions on Graphics
publication_status: published
publisher: ACM
publist_id: '4932'
quality_controlled: 0
status: public
title: Coupled 3D reconstruction of sparse facial hair and skin
type: journal_article
volume: 31
year: '2012'
...
---
_id: '2104'
abstract:
- lang: eng
text: 'In recent years, various methods have been introduced to exploit pre-recorded
data to improve the performance and/or realism of dynamic deformations, but their
differences and similarities have not been adequately analyzed or discussed. So
far, the proposed methods have been explored mainly in the research context. They
have not been adopted by the computer graphics industry. This course bridges the
gap between research labs and industry to present a unifying theory and understanding
of data-driven methods for dynamic deformations that may inspire development of
novel solutions. It focuses on application of data-driven methods to three areas
of computer animation: dynamic deformation of faces, soft volumetric tissue, and
cloth. And it describes how to approach these challenges in a data-driven manner,
classifies the various methods, and demonstrates how data-driven methods can work
in other settings. '
author:
- first_name: Miguel
full_name: Otaduy, Miguel A
last_name: Otaduy
- first_name: Bernd
full_name: Bernd Bickel
id: 49876194-F248-11E8-B48F-1D18A9856A87
last_name: Bickel
orcid: 0000-0001-6511-9385
- first_name: Derek
full_name: Bradley, Derek J
last_name: Bradley
- first_name: Huamin
full_name: Wang, Huamin
last_name: Wang
citation:
ama: 'Otaduy M, Bickel B, Bradley D, Wang H. Data-driven simulation methods in computer
graphics: Cloth, tissue and faces. In: ACM; 2012. doi:10.1145/2343483.2343495'
apa: 'Otaduy, M., Bickel, B., Bradley, D., & Wang, H. (2012). Data-driven simulation
methods in computer graphics: Cloth, tissue and faces. Presented at the SIGGRAPH:
Special Interest Group on Computer Graphics and Interactive Techniques, ACM. https://doi.org/10.1145/2343483.2343495'
chicago: 'Otaduy, Miguel, Bernd Bickel, Derek Bradley, and Huamin Wang. “Data-Driven
Simulation Methods in Computer Graphics: Cloth, Tissue and Faces.” ACM, 2012.
https://doi.org/10.1145/2343483.2343495.'
ieee: 'M. Otaduy, B. Bickel, D. Bradley, and H. Wang, “Data-driven simulation methods
in computer graphics: Cloth, tissue and faces,” presented at the SIGGRAPH: Special
Interest Group on Computer Graphics and Interactive Techniques, 2012.'
ista: 'Otaduy M, Bickel B, Bradley D, Wang H. 2012. Data-driven simulation methods
in computer graphics: Cloth, tissue and faces. SIGGRAPH: Special Interest Group
on Computer Graphics and Interactive Techniques.'
mla: 'Otaduy, Miguel, et al. Data-Driven Simulation Methods in Computer Graphics:
Cloth, Tissue and Faces. ACM, 2012, doi:10.1145/2343483.2343495.'
short: M. Otaduy, B. Bickel, D. Bradley, H. Wang, in:, ACM, 2012.
conference:
name: 'SIGGRAPH: Special Interest Group on Computer Graphics and Interactive Techniques'
date_created: 2018-12-11T11:55:44Z
date_published: 2012-01-01T00:00:00Z
date_updated: 2021-01-12T06:55:20Z
day: '01'
doi: 10.1145/2343483.2343495
extern: 1
month: '01'
publication_status: published
publisher: ACM
publist_id: '4930'
quality_controlled: 0
status: public
title: 'Data-driven simulation methods in computer graphics: Cloth, tissue and faces'
type: conference
year: '2012'
...