---
_id: '5382'
abstract:
- lang: eng
  text: 'We consider two-player stochastic games played on a finite state space for
    an infinite num- ber of rounds. The games are concurrent: in each round, the two
    players (player 1 and player 2) choose their moves independently and simultaneously;
    the current state and the two moves determine a probability distribution over
    the successor states. We also consider the important special case of turn-based
    stochastic games where players make moves in turns, rather than concurrently.
    We study concurrent games with ω-regular winning conditions specified as parity
    objectives. The value for player 1 for a parity objective is the maximal probability
    with which the player can guarantee the satisfaction of the objective against
    all strategies of the opponent. We study the problem of continuity and robustness
    of the value function in concurrent and turn-based stochastic parity games with
    respect to imprecision in the transition probabilities. We present quantitative
    bounds on the difference of the value function (in terms of the imprecision of
    the transition probabilities) and show the value continuity for structurally equivalent
    concurrent games (two games are structurally equivalent if the support of the
    transition func- tion is same and the probabilities differ). We also show robustness
    of optimal strategies for structurally equivalent turn-based stochastic parity
    games. Finally we show that the value continuity property breaks without the structurally
    equivalent assumption (even for Markov chains) and show that our quantitative
    bound is asymptotically optimal. Hence our results are tight (the assumption is
    both necessary and sufficient) and optimal (our quantitative bound is asymptotically
    optimal).'
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
citation:
  ama: Chatterjee K. <i>Robustness of Structurally Equivalent Concurrent Parity Games</i>.
    IST Austria; 2011. doi:<a href="https://doi.org/10.15479/AT:IST-2011-0006">10.15479/AT:IST-2011-0006</a>
  apa: Chatterjee, K. (2011). <i>Robustness of structurally equivalent concurrent
    parity games</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2011-0006">https://doi.org/10.15479/AT:IST-2011-0006</a>
  chicago: Chatterjee, Krishnendu. <i>Robustness of Structurally Equivalent Concurrent
    Parity Games</i>. IST Austria, 2011. <a href="https://doi.org/10.15479/AT:IST-2011-0006">https://doi.org/10.15479/AT:IST-2011-0006</a>.
  ieee: K. Chatterjee, <i>Robustness of structurally equivalent concurrent parity
    games</i>. IST Austria, 2011.
  ista: Chatterjee K. 2011. Robustness of structurally equivalent concurrent parity
    games, IST Austria, 18p.
  mla: Chatterjee, Krishnendu. <i>Robustness of Structurally Equivalent Concurrent
    Parity Games</i>. IST Austria, 2011, doi:<a href="https://doi.org/10.15479/AT:IST-2011-0006">10.15479/AT:IST-2011-0006</a>.
  short: K. Chatterjee, Robustness of Structurally Equivalent Concurrent Parity Games,
    IST Austria, 2011.
date_created: 2018-12-12T11:39:00Z
date_published: 2011-06-27T00:00:00Z
date_updated: 2023-02-23T11:23:01Z
day: '27'
ddc:
- '000'
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2011-0006
file:
- access_level: open_access
  checksum: 1322b652d6ab07eb5248298a3f91c1cf
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:54:24Z
  date_updated: 2020-07-14T12:46:40Z
  file_id: '5546'
  file_name: IST-2011-0006_IST-2011-0006.pdf
  file_size: 335997
  relation: main_file
file_date_updated: 2020-07-14T12:46:40Z
has_accepted_license: '1'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
page: '18'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '18'
related_material:
  record:
  - id: '3341'
    relation: later_version
    status: public
status: public
title: Robustness of structurally equivalent concurrent parity games
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2011'
...
---
_id: '5383'
abstract:
- lang: eng
  text: We present a new decidable logic called TREX for expressing constraints about
    imperative tree data structures. In particular, TREX supports a transitive closure
    operator that can express reachability constraints, which often appear in data
    structure invariants. We show that our logic is closed under weakest precondition
    computation, which enables its use for automated software verification. We further
    show that satisfiability of formulas in TREX is decidable in NP. The low complexity
    makes it an attractive alternative to more expensive logics such as monadic second-order
    logic (MSOL) over trees, which have been traditionally used for reasoning about
    tree data structures.
alternative_title:
- IST Austria Technical Report
author:
- first_name: Thomas
  full_name: Wies, Thomas
  id: 447BFB88-F248-11E8-B48F-1D18A9856A87
  last_name: Wies
- first_name: Marco
  full_name: Muñiz, Marco
  last_name: Muñiz
- first_name: Viktor
  full_name: Kuncak, Viktor
  last_name: Kuncak
citation:
  ama: Wies T, Muñiz M, Kuncak V. <i>On an Efficient Decision Procedure for Imperative
    Tree Data Structures</i>. IST Austria; 2011. doi:<a href="https://doi.org/10.15479/AT:IST-2011-0005">10.15479/AT:IST-2011-0005</a>
  apa: Wies, T., Muñiz, M., &#38; Kuncak, V. (2011). <i>On an efficient decision procedure
    for imperative tree data structures</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2011-0005">https://doi.org/10.15479/AT:IST-2011-0005</a>
  chicago: Wies, Thomas, Marco Muñiz, and Viktor Kuncak. <i>On an Efficient Decision
    Procedure for Imperative Tree Data Structures</i>. IST Austria, 2011. <a href="https://doi.org/10.15479/AT:IST-2011-0005">https://doi.org/10.15479/AT:IST-2011-0005</a>.
  ieee: T. Wies, M. Muñiz, and V. Kuncak, <i>On an efficient decision procedure for
    imperative tree data structures</i>. IST Austria, 2011.
  ista: Wies T, Muñiz M, Kuncak V. 2011. On an efficient decision procedure for imperative
    tree data structures, IST Austria, 25p.
  mla: Wies, Thomas, et al. <i>On an Efficient Decision Procedure for Imperative Tree
    Data Structures</i>. IST Austria, 2011, doi:<a href="https://doi.org/10.15479/AT:IST-2011-0005">10.15479/AT:IST-2011-0005</a>.
  short: T. Wies, M. Muñiz, V. Kuncak, On an Efficient Decision Procedure for Imperative
    Tree Data Structures, IST Austria, 2011.
date_created: 2018-12-12T11:39:01Z
date_published: 2011-04-26T00:00:00Z
date_updated: 2023-02-23T11:22:16Z
day: '26'
ddc:
- '000'
- '006'
department:
- _id: ToHe
doi: 10.15479/AT:IST-2011-0005
file:
- access_level: open_access
  checksum: b20029184c4a819c5f4466a4a3d238b5
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:01Z
  date_updated: 2020-07-14T12:46:40Z
  file_id: '5462'
  file_name: IST-2011-0005_IST-2011-0005.pdf
  file_size: 619053
  relation: main_file
file_date_updated: 2020-07-14T12:46:40Z
has_accepted_license: '1'
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
page: '25'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '19'
related_material:
  record:
  - id: '3323'
    relation: later_version
    status: public
status: public
title: On an efficient decision procedure for imperative tree data structures
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2011'
...
---
_id: '5384'
abstract:
- lang: eng
  text: 'We consider probabilistic automata on infinite words with acceptance defined
    by parity conditions. We consider three qualitative decision problems: (i) the
    positive decision problem asks whether there is a word that is accepted with positive
    probability; (ii) the almost decision problem asks whether there is a word that
    is accepted with probability 1; and (iii) the limit decision problem asks whether
    for every ε > 0 there is a word that is accepted with probability at least 1 −
    ε. We unify and generalize several decidability results for probabilistic automata
    over infinite words, and identify a robust (closed under union and intersection)
    subclass of probabilistic automata for which all the qualitative decision problems
    are decidable for parity conditions. We also show that if the input words are
    restricted to lasso shape words, then the positive and almost problems are decidable
    for all probabilistic automata with parity conditions.'
alternative_title:
- IST Austria Technical Report
author:
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Mathieu
  full_name: Tracol, Mathieu
  id: 3F54FA38-F248-11E8-B48F-1D18A9856A87
  last_name: Tracol
citation:
  ama: Chatterjee K, Tracol M. <i>Decidable Problems for Probabilistic Automata on
    Infinite Words</i>. IST Austria; 2011. doi:<a href="https://doi.org/10.15479/AT:IST-2011-0004">10.15479/AT:IST-2011-0004</a>
  apa: Chatterjee, K., &#38; Tracol, M. (2011). <i>Decidable problems for probabilistic
    automata on infinite words</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2011-0004">https://doi.org/10.15479/AT:IST-2011-0004</a>
  chicago: Chatterjee, Krishnendu, and Mathieu Tracol. <i>Decidable Problems for Probabilistic
    Automata on Infinite Words</i>. IST Austria, 2011. <a href="https://doi.org/10.15479/AT:IST-2011-0004">https://doi.org/10.15479/AT:IST-2011-0004</a>.
  ieee: K. Chatterjee and M. Tracol, <i>Decidable problems for probabilistic automata
    on infinite words</i>. IST Austria, 2011.
  ista: Chatterjee K, Tracol M. 2011. Decidable problems for probabilistic automata
    on infinite words, IST Austria, 30p.
  mla: Chatterjee, Krishnendu, and Mathieu Tracol. <i>Decidable Problems for Probabilistic
    Automata on Infinite Words</i>. IST Austria, 2011, doi:<a href="https://doi.org/10.15479/AT:IST-2011-0004">10.15479/AT:IST-2011-0004</a>.
  short: K. Chatterjee, M. Tracol, Decidable Problems for Probabilistic Automata on
    Infinite Words, IST Austria, 2011.
date_created: 2018-12-12T11:39:01Z
date_published: 2011-04-11T00:00:00Z
date_updated: 2023-02-23T11:05:53Z
day: '11'
ddc:
- '000'
- '005'
department:
- _id: KrCh
doi: 10.15479/AT:IST-2011-0004
file:
- access_level: open_access
  checksum: f5a0f664fadc335990f5fcf138df19f1
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:54:23Z
  date_updated: 2020-07-14T12:46:40Z
  file_id: '5545'
  file_name: IST-2011-004_IST-2011-0004.pdf
  file_size: 570827
  relation: main_file
file_date_updated: 2020-07-14T12:46:40Z
has_accepted_license: '1'
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
page: '30'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '20'
related_material:
  record:
  - id: '2957'
    relation: later_version
    status: public
status: public
title: Decidable problems for probabilistic automata on infinite words
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2011'
...
---
_id: '5385'
abstract:
- lang: eng
  text: There is recently a significant effort to add quantitative objectives to formal
    verification and synthesis. We introduce and investigate the extension of temporal
    logics with quantitative atomic assertions, aiming for a general and flexible
    framework for quantitative-oriented specifications. In the heart of quantitative
    objectives lies the accumulation of values along a computation. It is either the
    accumulated summation, as with the energy objectives, or the accumulated average,
    as with the mean-payoff objectives. We investigate the extension of temporal logics
    with the prefix-accumulation assertions Sum(v) ≥ c and Avg(v) ≥ c, where v is
    a numeric variable of the system, c is a constant rational number, and Sum(v)
    and Avg(v) denote the accumulated sum and average of the values of v from the
    beginning of the computation up to the current point of time. We also allow the
    path-accumulation assertions LimInfAvg(v) ≥ c and LimSupAvg(v) ≥ c, referring
    to the average value along an entire computation. We study the border of decidability
    for extensions of various temporal logics. In particular, we show that extending
    the fragment of CTL that has only the EX, EF, AX, and AG temporal modalities by
    prefix-accumulation assertions and extending LTL with path-accumulation assertions,
    result in temporal logics whose model-checking problem is decidable. The extended
    logics allow to significantly extend the currently known energy and mean-payoff
    objectives. Moreover, the prefix-accumulation assertions may be refined with “controlled-accumulation”,
    allowing, for example, to specify constraints on the average waiting time between
    a request and a grant. On the negative side, we show that the fragment we point
    to is, in a sense, the maximal logic whose extension with prefix-accumulation
    assertions permits a decidable model-checking procedure. Extending a temporal
    logic that has the EG or EU modalities, and in particular CTL and LTL, makes the
    problem undecidable.
alternative_title:
- IST Austria Technical Report
author:
- first_name: Udi
  full_name: Boker, Udi
  id: 31E297B6-F248-11E8-B48F-1D18A9856A87
  last_name: Boker
- first_name: Krishnendu
  full_name: Chatterjee, Krishnendu
  id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
  last_name: Chatterjee
  orcid: 0000-0002-4561-241X
- first_name: Thomas A
  full_name: Henzinger, Thomas A
  id: 40876CD8-F248-11E8-B48F-1D18A9856A87
  last_name: Henzinger
  orcid: 0000−0002−2985−7724
- first_name: Orna
  full_name: Kupferman, Orna
  last_name: Kupferman
citation:
  ama: Boker U, Chatterjee K, Henzinger TA, Kupferman O. <i>Temporal Specifications
    with Accumulative Values</i>. IST Austria; 2011. doi:<a href="https://doi.org/10.15479/AT:IST-2011-0003">10.15479/AT:IST-2011-0003</a>
  apa: Boker, U., Chatterjee, K., Henzinger, T. A., &#38; Kupferman, O. (2011). <i>Temporal
    specifications with accumulative values</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2011-0003">https://doi.org/10.15479/AT:IST-2011-0003</a>
  chicago: Boker, Udi, Krishnendu Chatterjee, Thomas A Henzinger, and Orna Kupferman.
    <i>Temporal Specifications with Accumulative Values</i>. IST Austria, 2011. <a
    href="https://doi.org/10.15479/AT:IST-2011-0003">https://doi.org/10.15479/AT:IST-2011-0003</a>.
  ieee: U. Boker, K. Chatterjee, T. A. Henzinger, and O. Kupferman, <i>Temporal specifications
    with accumulative values</i>. IST Austria, 2011.
  ista: Boker U, Chatterjee K, Henzinger TA, Kupferman O. 2011. Temporal specifications
    with accumulative values, IST Austria, 14p.
  mla: Boker, Udi, et al. <i>Temporal Specifications with Accumulative Values</i>.
    IST Austria, 2011, doi:<a href="https://doi.org/10.15479/AT:IST-2011-0003">10.15479/AT:IST-2011-0003</a>.
  short: U. Boker, K. Chatterjee, T.A. Henzinger, O. Kupferman, Temporal Specifications
    with Accumulative Values, IST Austria, 2011.
date_created: 2018-12-12T11:39:02Z
date_published: 2011-04-04T00:00:00Z
date_updated: 2023-02-23T11:23:41Z
day: '04'
ddc:
- '000'
- '004'
department:
- _id: ToHe
- _id: KrCh
doi: 10.15479/AT:IST-2011-0003
ec_funded: 1
file:
- access_level: open_access
  checksum: 8491d0d48c4911620ecd5350b413c11e
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:00Z
  date_updated: 2020-07-14T12:46:41Z
  file_id: '5461'
  file_name: IST-2011-0003_IST-2011-0003.pdf
  file_size: 366281
  relation: main_file
file_date_updated: 2020-07-14T12:46:41Z
has_accepted_license: '1'
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
page: '14'
project:
- _id: 25832EC2-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: S 11407_N23
  name: Rigorous Systems Engineering
- _id: 25EFB36C-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '215543'
  name: COMponent-Based Embedded Systems design Techniques
- _id: 25EE3708-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '267989'
  name: Quantitative Reactive Modeling
- _id: 25F1337C-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '214373'
  name: Design for Embedded Systems
- _id: 2587B514-B435-11E9-9278-68D0E5697425
  name: Microsoft Research Faculty Fellowship
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '21'
related_material:
  record:
  - id: '2038'
    relation: later_version
    status: public
  - id: '3356'
    relation: later_version
    status: public
status: public
title: Temporal specifications with accumulative values
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2011'
...
---
_id: '5386'
abstract:
- lang: eng
  text: 'We introduce TopoCut: a new way to integrate knowledge about topological
    properties (TPs) into random field image segmentation model. Instead of including
    TPs as additional constraints during minimization of the energy function, we devise
    an efficient algorithm for modifying the unary potentials such that the resulting
    segmentation is guaranteed with the desired properties. Our method is more flexible
    in the sense that it handles more topology constraints than previous methods,
    which were only able to enforce pairwise or global connectivity. In particular,
    our method is very fast, making it for the first time possible to enforce global
    topological properties in practical image segmentation tasks.'
alternative_title:
- IST Austria Technical Report
author:
- first_name: Chao
  full_name: Chen, Chao
  id: 3E92416E-F248-11E8-B48F-1D18A9856A87
  last_name: Chen
- first_name: Daniel
  full_name: Freedman, Daniel
  last_name: Freedman
- first_name: Christoph
  full_name: Lampert, Christoph
  id: 40C20FD2-F248-11E8-B48F-1D18A9856A87
  last_name: Lampert
  orcid: 0000-0001-8622-7887
citation:
  ama: Chen C, Freedman D, Lampert C. <i>Enforcing Topological Constraints in Random
    Field Image Segmentation</i>. IST Austria; 2011. doi:<a href="https://doi.org/10.15479/AT:IST-2011-0002">10.15479/AT:IST-2011-0002</a>
  apa: Chen, C., Freedman, D., &#38; Lampert, C. (2011). <i>Enforcing topological
    constraints in random field image segmentation</i>. IST Austria. <a href="https://doi.org/10.15479/AT:IST-2011-0002">https://doi.org/10.15479/AT:IST-2011-0002</a>
  chicago: Chen, Chao, Daniel Freedman, and Christoph Lampert. <i>Enforcing Topological
    Constraints in Random Field Image Segmentation</i>. IST Austria, 2011. <a href="https://doi.org/10.15479/AT:IST-2011-0002">https://doi.org/10.15479/AT:IST-2011-0002</a>.
  ieee: C. Chen, D. Freedman, and C. Lampert, <i>Enforcing topological constraints
    in random field image segmentation</i>. IST Austria, 2011.
  ista: Chen C, Freedman D, Lampert C. 2011. Enforcing topological constraints in
    random field image segmentation, IST Austria, 69p.
  mla: Chen, Chao, et al. <i>Enforcing Topological Constraints in Random Field Image
    Segmentation</i>. IST Austria, 2011, doi:<a href="https://doi.org/10.15479/AT:IST-2011-0002">10.15479/AT:IST-2011-0002</a>.
  short: C. Chen, D. Freedman, C. Lampert, Enforcing Topological Constraints in Random
    Field Image Segmentation, IST Austria, 2011.
date_created: 2018-12-12T11:39:02Z
date_published: 2011-03-28T00:00:00Z
date_updated: 2023-02-23T11:22:48Z
day: '28'
ddc:
- '000'
department:
- _id: ChLa
doi: 10.15479/AT:IST-2011-0002
file:
- access_level: open_access
  checksum: ad64c2add5fe2ad10e9d5c669f3f9526
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T11:53:34Z
  date_updated: 2020-07-14T12:46:41Z
  file_id: '5495'
  file_name: IST-2011-0002_IST-2011-0002.pdf
  file_size: 26390601
  relation: main_file
file_date_updated: 2020-07-14T12:46:41Z
has_accepted_license: '1'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
page: '69'
publication_identifier:
  issn:
  - 2664-1690
publication_status: published
publisher: IST Austria
pubrep_id: '22'
related_material:
  record:
  - id: '3336'
    relation: later_version
    status: public
status: public
title: Enforcing topological constraints in random field image segmentation
type: technical_report
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2011'
...
---
_id: '12199'
abstract:
- lang: eng
  text: The four microsporangia of the flowering plant anther develop from archesporial
    cells in the L2 of the primordium. Within each microsporangium, developing microsporocytes
    are surrounded by concentric monolayers of tapetal, middle layer and endothecial
    cells. How this intricate array of tissues, each containing relatively few cells,
    is established in an organ possessing no formal meristems is poorly understood.
    We describe here the pivotal role of the LRR receptor kinase EXCESS MICROSPOROCYTES
    1 (EMS1) in forming the monolayer of tapetal nurse cells in Arabidopsis. Unusually
    for plants, tapetal cells are specified very early in development, and are subsequently
    stimulated to proliferate by a receptor-like kinase (RLK) complex that includes
    EMS1. Mutations in members of this EMS1 signalling complex and its putative ligand
    result in male-sterile plants in which tapetal initials fail to proliferate. Surprisingly,
    these cells continue to develop, isolated at the locular periphery. Mutant and
    wild-type microsporangia expand at similar rates and the ‘tapetal’ space at the
    periphery of mutant locules becomes occupied by microsporocytes. However, induction
    of late expression of EMS1 in the few tapetal initials in ems1 plants results
    in their proliferation to generate a functional tapetum, and this proliferation
    suppresses microsporocyte number. Our experiments also show that integrity of
    the tapetal monolayer is crucial for the maintenance of the polarity of divisions
    within it. This unexpected autonomy of the tapetal ‘lineage’ is discussed in the
    context of tissue development in complex plant organs, where constancy in size,
    shape and cell number is crucial.
acknowledgement: 'We thank the following for providing mutant lines and reagents:
  Hong Ma, De Ye, Sacco De Vries, and Rod Scott for providing the pA9::Barnase lines
  and information on A9 expression patterns. Carla Galinha and Paolo Piazza gave valuable
  help with in situ hybridisation and qRT-PCR, respectively, and we acknowledge Qing
  Zhang, Helen Prescott and Matthew Dicks for providing excellent technical assistance.
  We are indebted to Miltos Tsiantis and Angela Hay for helpful discussion, and the
  research was funded by Oxford University through a Clarendon Scholarship to X.F.,
  with additional financial support from Magdalen College (Oxford).'
article_processing_charge: No
article_type: original
author:
- first_name: Xiaoqi
  full_name: Feng, Xiaoqi
  id: e0164712-22ee-11ed-b12a-d80fcdf35958
  last_name: Feng
  orcid: 0000-0002-4008-1234
- first_name: Hugh G.
  full_name: Dickinson, Hugh G.
  last_name: Dickinson
citation:
  ama: Feng X, Dickinson HG. Tapetal cell fate, lineage and proliferation in the Arabidopsis
    anther. <i>Development</i>. 2010;137(14):2409-2416. doi:<a href="https://doi.org/10.1242/dev.049320">10.1242/dev.049320</a>
  apa: Feng, X., &#38; Dickinson, H. G. (2010). Tapetal cell fate, lineage and proliferation
    in the Arabidopsis anther. <i>Development</i>. The Company of Biologists. <a href="https://doi.org/10.1242/dev.049320">https://doi.org/10.1242/dev.049320</a>
  chicago: Feng, Xiaoqi, and Hugh G. Dickinson. “Tapetal Cell Fate, Lineage and Proliferation
    in the Arabidopsis Anther.” <i>Development</i>. The Company of Biologists, 2010.
    <a href="https://doi.org/10.1242/dev.049320">https://doi.org/10.1242/dev.049320</a>.
  ieee: X. Feng and H. G. Dickinson, “Tapetal cell fate, lineage and proliferation
    in the Arabidopsis anther,” <i>Development</i>, vol. 137, no. 14. The Company
    of Biologists, pp. 2409–2416, 2010.
  ista: Feng X, Dickinson HG. 2010. Tapetal cell fate, lineage and proliferation in
    the Arabidopsis anther. Development. 137(14), 2409–2416.
  mla: Feng, Xiaoqi, and Hugh G. Dickinson. “Tapetal Cell Fate, Lineage and Proliferation
    in the Arabidopsis Anther.” <i>Development</i>, vol. 137, no. 14, The Company
    of Biologists, 2010, pp. 2409–16, doi:<a href="https://doi.org/10.1242/dev.049320">10.1242/dev.049320</a>.
  short: X. Feng, H.G. Dickinson, Development 137 (2010) 2409–2416.
date_created: 2023-01-16T09:21:54Z
date_published: 2010-07-15T00:00:00Z
date_updated: 2023-05-08T10:57:11Z
day: '15'
department:
- _id: XiFe
doi: 10.1242/dev.049320
extern: '1'
external_id:
  pmid:
  - '20570940'
intvolume: '       137'
issue: '14'
keyword:
- Developmental Biology
- Molecular Biology
- Anther Tapetum
- Arabidopsis
- Cell Fate Establishment
- EMS1
- Reproductive Cell Lineage
language:
- iso: eng
month: '07'
oa_version: None
page: 2409-2416
pmid: 1
publication: Development
publication_identifier:
  issn:
  - 1477-9129
  - 0950-1991
publication_status: published
publisher: The Company of Biologists
quality_controlled: '1'
scopus_import: '1'
status: public
title: Tapetal cell fate, lineage and proliferation in the Arabidopsis anther
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 137
year: '2010'
...
---
_id: '12200'
abstract:
- lang: eng
  text: Key steps in the evolution of the angiosperm anther include the patterning
    of the concentrically organized microsporangium and the incorporation of four
    such microsporangia into a leaf-like structure. Mutant studies in the model plant
    Arabidopsis thaliana are leading to an increasingly accurate picture of (i) the
    cell lineages culminating in the different cell types present in the microsporangium
    (the microsporocytes, the tapetum, and the middle and endothecial layers), and
    (ii) some of the genes responsible for specifying their fates. However, the processes
    that confer polarity on the developing anther and position the microsporangia
    within it remain unclear. Certainly, data from a range of experimental strategies
    suggest that hormones play a central role in establishing polarity and the patterning
    of the anther initial, and may be responsible for locating the microsporangia.
    But the fact that microsporangia were originally positioned externally suggests
    that their development is likely to be autonomous, perhaps with the reproductive
    cells generating signals controlling the growth and division of the investing
    anther epidermis. These possibilities are discussed in the context of the expression
    of genes which initiate and maintain male and female reproductive development,
    and in the perspective of our current views of anther evolution.
article_processing_charge: No
article_type: original
author:
- first_name: Xiaoqi
  full_name: Feng, Xiaoqi
  id: e0164712-22ee-11ed-b12a-d80fcdf35958
  last_name: Feng
  orcid: 0000-0002-4008-1234
- first_name: Hugh G.
  full_name: Dickinson, Hugh G.
  last_name: Dickinson
citation:
  ama: Feng X, Dickinson HG. Cell–cell interactions during patterning of the <i>Arabidopsis</i>
    anther. <i>Biochemical Society Transactions</i>. 2010;38(2):571-576. doi:<a href="https://doi.org/10.1042/bst0380571">10.1042/bst0380571</a>
  apa: Feng, X., &#38; Dickinson, H. G. (2010). Cell–cell interactions during patterning
    of the <i>Arabidopsis</i> anther. <i>Biochemical Society Transactions</i>. Portland
    Press Ltd. <a href="https://doi.org/10.1042/bst0380571">https://doi.org/10.1042/bst0380571</a>
  chicago: Feng, Xiaoqi, and Hugh G. Dickinson. “Cell–Cell Interactions during Patterning
    of the <i>Arabidopsis</i> Anther.” <i>Biochemical Society Transactions</i>. Portland
    Press Ltd., 2010. <a href="https://doi.org/10.1042/bst0380571">https://doi.org/10.1042/bst0380571</a>.
  ieee: X. Feng and H. G. Dickinson, “Cell–cell interactions during patterning of
    the <i>Arabidopsis</i> anther,” <i>Biochemical Society Transactions</i>, vol.
    38, no. 2. Portland Press Ltd., pp. 571–576, 2010.
  ista: Feng X, Dickinson HG. 2010. Cell–cell interactions during patterning of the
    <i>Arabidopsis</i> anther. Biochemical Society Transactions. 38(2), 571–576.
  mla: Feng, Xiaoqi, and Hugh G. Dickinson. “Cell–Cell Interactions during Patterning
    of the <i>Arabidopsis</i> Anther.” <i>Biochemical Society Transactions</i>, vol.
    38, no. 2, Portland Press Ltd., 2010, pp. 571–76, doi:<a href="https://doi.org/10.1042/bst0380571">10.1042/bst0380571</a>.
  short: X. Feng, H.G. Dickinson, Biochemical Society Transactions 38 (2010) 571–576.
date_created: 2023-01-16T09:22:18Z
date_published: 2010-03-22T00:00:00Z
date_updated: 2023-05-08T10:57:59Z
day: '22'
department:
- _id: XiFe
doi: 10.1042/bst0380571
extern: '1'
external_id:
  pmid:
  - '20298223'
intvolume: '        38'
issue: '2'
keyword:
- Biochemistry
- Anther Development
- Arabidopsis
- Cell Fate
- Microsporangium
- Polarity
- Receptor Kinase
language:
- iso: eng
month: '03'
oa_version: None
page: 571-576
pmid: 1
publication: Biochemical Society Transactions
publication_identifier:
  issn:
  - 0300-5127
  - 1470-8752
publication_status: published
publisher: Portland Press Ltd.
quality_controlled: '1'
scopus_import: '1'
status: public
title: Cell–cell interactions during patterning of the <i>Arabidopsis</i> anther
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 38
year: '2010'
...
---
_id: '12653'
abstract:
- lang: eng
  text: 'Daily streamflow from stations close to five Swiss glaciers is analyzed for
    trends with the Mann-Kendall test. We consider a common period of record (1974–2004)
    and longer periods based on data availability. The trend statistical significance
    is tested on annual and seasonal bases. We also examine changes in precipitation,
    temperature, and snow cover characteristics. Highly glacierized basins show statistically
    significant positive trends in annual streamflow caused by increasing streamflow
    in spring and summer. Trends are more numerous and stronger at lower and mid than
    at the upper quantiles. The basin characterized by lower glacier coverage, conversely,
    does not exhibit consistently statistically significant trends. Changes in precipitation
    are not sufficient to explain the observed streamflow trends. Air temperature
    sees an increase in mean, minimum, and maximum values at all sites. Variations
    in the seasonal snow accumulation and ablation process are evident. Solid precipitation
    is decreasing at all sites and trends may be due to a shift from snowfall into
    rainfall. Mean snow depth is also decreasing, and its duration is getting shorter
    because of a decrease in solid precipitation and enhanced melting. Trend magnitude
    attenuates with longer time series. Contrasting trends are detected for different
    subperiods in the last 70 years: statistically significant negative trends are
    observed in the periods 1944–1974 and 1954–1984 for Aletschgletscher, in contrast
    with the results for the common period. These trends are explained by different
    rates of ice volume changes, and the sign of trends is clearly related to phases
    of positive or negative glacier mass balance.'
article_number: W10522
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: A.
  full_name: Bauder, A.
  last_name: Bauder
- first_name: M.
  full_name: Parola, M.
  last_name: Parola
citation:
  ama: Pellicciotti F, Bauder A, Parola M. Effect of glaciers on streamflow trends
    in the Swiss Alps. <i>Water Resources Research</i>. 2010;46(10). doi:<a href="https://doi.org/10.1029/2009wr009039">10.1029/2009wr009039</a>
  apa: Pellicciotti, F., Bauder, A., &#38; Parola, M. (2010). Effect of glaciers on
    streamflow trends in the Swiss Alps. <i>Water Resources Research</i>. American
    Geophysical Union. <a href="https://doi.org/10.1029/2009wr009039">https://doi.org/10.1029/2009wr009039</a>
  chicago: Pellicciotti, Francesca, A. Bauder, and M. Parola. “Effect of Glaciers
    on Streamflow Trends in the Swiss Alps.” <i>Water Resources Research</i>. American
    Geophysical Union, 2010. <a href="https://doi.org/10.1029/2009wr009039">https://doi.org/10.1029/2009wr009039</a>.
  ieee: F. Pellicciotti, A. Bauder, and M. Parola, “Effect of glaciers on streamflow
    trends in the Swiss Alps,” <i>Water Resources Research</i>, vol. 46, no. 10. American
    Geophysical Union, 2010.
  ista: Pellicciotti F, Bauder A, Parola M. 2010. Effect of glaciers on streamflow
    trends in the Swiss Alps. Water Resources Research. 46(10), W10522.
  mla: Pellicciotti, Francesca, et al. “Effect of Glaciers on Streamflow Trends in
    the Swiss Alps.” <i>Water Resources Research</i>, vol. 46, no. 10, W10522, American
    Geophysical Union, 2010, doi:<a href="https://doi.org/10.1029/2009wr009039">10.1029/2009wr009039</a>.
  short: F. Pellicciotti, A. Bauder, M. Parola, Water Resources Research 46 (2010).
date_created: 2023-02-20T08:18:27Z
date_published: 2010-10-01T00:00:00Z
date_updated: 2023-02-20T09:39:29Z
day: '01'
doi: 10.1029/2009wr009039
extern: '1'
intvolume: '        46'
issue: '10'
keyword:
- Water Science and Technology
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1029/2009WR009039
month: '10'
oa: 1
oa_version: Published Version
publication: Water Resources Research
publication_identifier:
  eissn:
  - 1944-7973
  issn:
  - 0043-1397
publication_status: published
publisher: American Geophysical Union
quality_controlled: '1'
scopus_import: '1'
status: public
title: Effect of glaciers on streamflow trends in the Swiss Alps
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 46
year: '2010'
...
---
_id: '1300'
abstract:
- lang: eng
  text: 'Motion vision is a major function of all visual systems, yet the underlying
    neural mechanisms and circuits are still elusive. In the lamina, the first optic
    neuropile of Drosophila melanogaster, photoreceptor signals split into five parallel
    pathways, L1-L5. Here we examine how these pathways contribute to visual motion
    detection by combining genetic block and reconstitution of neural activity in
    different lamina cell types with whole-cell recordings from downstream motion-sensitive
    neurons. We find reduced responses to moving gratings if L1 or L2 is blocked;
    however, reconstitution of photoreceptor input to only L1 or L2 results in wild-type
    responses. Thus, the first experiment indicates the necessity of both pathways,
    whereas the second indicates sufficiency of each single pathway. This contradiction
    can be explained by electrical coupling between L1 and L2, allowing for activation
    of both pathways even when only one of them receives photoreceptor input. A fundamental
    difference between the L1 pathway and the L2 pathway is uncovered when blocking
    L1 or L2 output while presenting moving edges of positive (ON) or negative (OFF)
    contrast polarity: blocking L1 eliminates the response to moving ON edges, whereas
    blocking L2 eliminates the response to moving OFF edges. Thus, similar to the
    segregation of photoreceptor signals in ON and OFF bipolar cell pathways in the
    vertebrate retina, photoreceptor signals segregate into ON-L1 and OFF-L2 channels
    in the lamina of Drosophila.'
author:
- first_name: Maximilian A
  full_name: Maximilian Jösch
  id: 2BD278E6-F248-11E8-B48F-1D18A9856A87
  last_name: Jösch
  orcid: 0000-0002-3937-1330
- first_name: Bettina
  full_name: Schnell, Bettina
  last_name: Schnell
- first_name: Shamprasad
  full_name: Raghu, Shamprasad V
  last_name: Raghu
- first_name: Dierk
  full_name: Reiff, Dierk F
  last_name: Reiff
- first_name: Alexander
  full_name: Borst, Alexander
  last_name: Borst
citation:
  ama: Jösch MA, Schnell B, Raghu S, Reiff D, Borst A. ON and off pathways in Drosophila
    motion vision. <i>Nature</i>. 2010;468(7321):300-304. doi:<a href="https://doi.org/10.1038/nature09545">10.1038/nature09545</a>
  apa: Jösch, M. A., Schnell, B., Raghu, S., Reiff, D., &#38; Borst, A. (2010). ON
    and off pathways in Drosophila motion vision. <i>Nature</i>. Nature Publishing
    Group. <a href="https://doi.org/10.1038/nature09545">https://doi.org/10.1038/nature09545</a>
  chicago: Jösch, Maximilian A, Bettina Schnell, Shamprasad Raghu, Dierk Reiff, and
    Alexander Borst. “ON and off Pathways in Drosophila Motion Vision.” <i>Nature</i>.
    Nature Publishing Group, 2010. <a href="https://doi.org/10.1038/nature09545">https://doi.org/10.1038/nature09545</a>.
  ieee: M. A. Jösch, B. Schnell, S. Raghu, D. Reiff, and A. Borst, “ON and off pathways
    in Drosophila motion vision,” <i>Nature</i>, vol. 468, no. 7321. Nature Publishing
    Group, pp. 300–304, 2010.
  ista: Jösch MA, Schnell B, Raghu S, Reiff D, Borst A. 2010. ON and off pathways
    in Drosophila motion vision. Nature. 468(7321), 300–304.
  mla: Jösch, Maximilian A., et al. “ON and off Pathways in Drosophila Motion Vision.”
    <i>Nature</i>, vol. 468, no. 7321, Nature Publishing Group, 2010, pp. 300–04,
    doi:<a href="https://doi.org/10.1038/nature09545">10.1038/nature09545</a>.
  short: M.A. Jösch, B. Schnell, S. Raghu, D. Reiff, A. Borst, Nature 468 (2010) 300–304.
date_created: 2018-12-11T11:51:14Z
date_published: 2010-11-11T00:00:00Z
date_updated: 2021-01-12T06:49:44Z
day: '11'
doi: 10.1038/nature09545
extern: 1
intvolume: '       468'
issue: '7321'
month: '11'
page: 300 - 304
publication: Nature
publication_status: published
publisher: Nature Publishing Group
publist_id: '5970'
quality_controlled: 0
status: public
title: ON and off pathways in Drosophila motion vision
type: journal_article
volume: 468
year: '2010'
...
---
_id: '1301'
abstract:
- lang: eng
  text: Motion vision is essential for navigating through the environment. Due to
    its genetic amenability, the fruit fly Drosophila has been serving for a lengthy
    period as a model organism for studying optomotor behavior as elicited by large-field
    horizontal motion. However, the neurons underlying the control of this behavior
    have not been studied in Drosophila so far. Here we report the first whole cell
    recordings from three cells of the horizontal system (HSN, HSE, and HSS) in the
    lobula plate of Drosophila. All three HS cells are tuned to large-field horizontal
    motion in a direction-selective way; they become excited by front-to-back motion
    and inhibited by back-to-front motion in the ipsilateral field of view. The response
    properties of HS cells such as contrast and velocity dependence are in accordance
    with the correlation-type model of motion detection. Neurobiotin injection suggests
    extensive coupling among ipsilateral HS cells and additional coupling to tangential
    cells that have their dendrites in the contralateral hemisphere of the brain.
    This connectivity scheme accounts for the complex layout of their receptive fields
    and explains their sensitivity both to ipsilateral and to contralateral motion.
    Thus the main response properties of Drosophila HS cells are strikingly similar
    to the responses of their counterparts in the blowfly Calliphora, although we
    found substantial differences with respect to their dendritic structure and connectivity.
    This long-awaited functional characterization of HS cells in Drosophila provides
    the basis for the future dissection of optomotor behavior and the underlying neural
    circuitry by combining genetics, physiology, and behavior.
acknowledgement: This work was supported by the Max-Planck-Society and by a Human
  Frontier Science Program grant to K. Ito, A. Borst, and B. Nelson.
article_processing_charge: No
article_type: original
author:
- first_name: Bettina
  full_name: Schnell, Bettina
  last_name: Schnell
- first_name: Maximilian A
  full_name: Jösch, Maximilian A
  id: 2BD278E6-F248-11E8-B48F-1D18A9856A87
  last_name: Jösch
  orcid: 0000-0002-3937-1330
- first_name: Friedrich
  full_name: Förstner, Friedrich
  last_name: Förstner
- first_name: Shamprasad
  full_name: Raghu, Shamprasad
  last_name: Raghu
- first_name: Hideo
  full_name: Otsuna, Hideo
  last_name: Otsuna
- first_name: Kei
  full_name: Ito, Kei
  last_name: Ito
- first_name: Alexander
  full_name: Borst, Alexander
  last_name: Borst
- first_name: Dierk
  full_name: Reiff, Dierk
  last_name: Reiff
citation:
  ama: Schnell B, Jösch MA, Förstner F, et al. Processing of horizontal optic flow
    in three visual interneurons of the Drosophila brain. <i>Journal of Neurophysiology</i>.
    2010;103(3):1646-1657. doi:<a href="https://doi.org/10.1152/jn.00950.2009">10.1152/jn.00950.2009</a>
  apa: Schnell, B., Jösch, M. A., Förstner, F., Raghu, S., Otsuna, H., Ito, K., …
    Reiff, D. (2010). Processing of horizontal optic flow in three visual interneurons
    of the Drosophila brain. <i>Journal of Neurophysiology</i>. American Physiological
    Society. <a href="https://doi.org/10.1152/jn.00950.2009">https://doi.org/10.1152/jn.00950.2009</a>
  chicago: Schnell, Bettina, Maximilian A Jösch, Friedrich Förstner, Shamprasad Raghu,
    Hideo Otsuna, Kei Ito, Alexander Borst, and Dierk Reiff. “Processing of Horizontal
    Optic Flow in Three Visual Interneurons of the Drosophila Brain.” <i>Journal of
    Neurophysiology</i>. American Physiological Society, 2010. <a href="https://doi.org/10.1152/jn.00950.2009">https://doi.org/10.1152/jn.00950.2009</a>.
  ieee: B. Schnell <i>et al.</i>, “Processing of horizontal optic flow in three visual
    interneurons of the Drosophila brain,” <i>Journal of Neurophysiology</i>, vol.
    103, no. 3. American Physiological Society, pp. 1646–1657, 2010.
  ista: Schnell B, Jösch MA, Förstner F, Raghu S, Otsuna H, Ito K, Borst A, Reiff
    D. 2010. Processing of horizontal optic flow in three visual interneurons of the
    Drosophila brain. Journal of Neurophysiology. 103(3), 1646–1657.
  mla: Schnell, Bettina, et al. “Processing of Horizontal Optic Flow in Three Visual
    Interneurons of the Drosophila Brain.” <i>Journal of Neurophysiology</i>, vol.
    103, no. 3, American Physiological Society, 2010, pp. 1646–57, doi:<a href="https://doi.org/10.1152/jn.00950.2009">10.1152/jn.00950.2009</a>.
  short: B. Schnell, M.A. Jösch, F. Förstner, S. Raghu, H. Otsuna, K. Ito, A. Borst,
    D. Reiff, Journal of Neurophysiology 103 (2010) 1646–1657.
date_created: 2018-12-11T11:51:14Z
date_published: 2010-03-01T00:00:00Z
date_updated: 2021-01-12T06:49:44Z
day: '01'
doi: 10.1152/jn.00950.2009
extern: '1'
external_id:
  pmid:
  - '20089816'
intvolume: '       103'
issue: '3'
language:
- iso: eng
month: '03'
oa_version: None
page: 1646 - 1657
pmid: 1
publication: Journal of Neurophysiology
publication_identifier:
  eissn:
  - 1522-1598
  issn:
  - ' 0022-3077'
publication_status: published
publisher: American Physiological Society
publist_id: '5971'
quality_controlled: '1'
status: public
title: Processing of horizontal optic flow in three visual interneurons of the Drosophila
  brain
type: journal_article
user_id: D865714E-FA4E-11E9-B85B-F5C5E5697425
volume: 103
year: '2010'
...
---
_id: '8472'
abstract:
- lang: eng
  text: Characterization of protein dynamics by solid-state NMR spectroscopy requires
    robust and accurate measurement protocols, which are not yet fully developed.
    In this study, we investigate the backbone dynamics of microcrystalline ubiquitin
    using different approaches. A rotational-echo double-resonance type (REDOR-type)
    methodology allows one to accurately measure 1H−15N order parameters in highly
    deuterated samples. We show that the systematic errors in the REDOR experiment
    are as low as 1% or even less, giving access to accurate data for the amplitudes
    of backbone mobility. Combining such dipolar-coupling-derived order parameters
    with autocorrelated and cross-correlated 15N relaxation rates, we are able to
    quantitate amplitudes and correlation times of backbone dynamics on picosecond
    and nanosecond time scales in a residue-resolved manner. While the mobility on
    picosecond time scales appears to have rather uniform amplitude throughout the
    protein, we unambiguously identify and quantitate nanosecond mobility with order
    parameters S2 as low as 0.8 in some regions of the protein, where nanosecond dynamics
    has also been revealed in solution state. The methodology used here, a combination
    of accurate dipolar-coupling measurements and different relaxation parameters,
    yields details about dynamics on different time scales and can be applied to solid
    protein samples such as amyloid fibrils or membrane proteins.
article_processing_charge: No
article_type: original
author:
- first_name: Paul
  full_name: Schanda, Paul
  id: 7B541462-FAF6-11E9-A490-E8DFE5697425
  last_name: Schanda
  orcid: 0000-0002-9350-7606
- first_name: Beat H.
  full_name: Meier, Beat H.
  last_name: Meier
- first_name: Matthias
  full_name: Ernst, Matthias
  last_name: Ernst
citation:
  ama: Schanda P, Meier BH, Ernst M. Quantitative analysis of protein backbone dynamics
    in microcrystalline ubiquitin by solid-state NMR spectroscopy. <i>Journal of the
    American Chemical Society</i>. 2010;132(45):15957-15967. doi:<a href="https://doi.org/10.1021/ja100726a">10.1021/ja100726a</a>
  apa: Schanda, P., Meier, B. H., &#38; Ernst, M. (2010). Quantitative analysis of
    protein backbone dynamics in microcrystalline ubiquitin by solid-state NMR spectroscopy.
    <i>Journal of the American Chemical Society</i>. American Chemical Society. <a
    href="https://doi.org/10.1021/ja100726a">https://doi.org/10.1021/ja100726a</a>
  chicago: Schanda, Paul, Beat H. Meier, and Matthias Ernst. “Quantitative Analysis
    of Protein Backbone Dynamics in Microcrystalline Ubiquitin by Solid-State NMR
    Spectroscopy.” <i>Journal of the American Chemical Society</i>. American Chemical
    Society, 2010. <a href="https://doi.org/10.1021/ja100726a">https://doi.org/10.1021/ja100726a</a>.
  ieee: P. Schanda, B. H. Meier, and M. Ernst, “Quantitative analysis of protein backbone
    dynamics in microcrystalline ubiquitin by solid-state NMR spectroscopy,” <i>Journal
    of the American Chemical Society</i>, vol. 132, no. 45. American Chemical Society,
    pp. 15957–15967, 2010.
  ista: Schanda P, Meier BH, Ernst M. 2010. Quantitative analysis of protein backbone
    dynamics in microcrystalline ubiquitin by solid-state NMR spectroscopy. Journal
    of the American Chemical Society. 132(45), 15957–15967.
  mla: Schanda, Paul, et al. “Quantitative Analysis of Protein Backbone Dynamics in
    Microcrystalline Ubiquitin by Solid-State NMR Spectroscopy.” <i>Journal of the
    American Chemical Society</i>, vol. 132, no. 45, American Chemical Society, 2010,
    pp. 15957–67, doi:<a href="https://doi.org/10.1021/ja100726a">10.1021/ja100726a</a>.
  short: P. Schanda, B.H. Meier, M. Ernst, Journal of the American Chemical Society
    132 (2010) 15957–15967.
date_created: 2020-09-18T10:11:13Z
date_published: 2010-10-26T00:00:00Z
date_updated: 2021-01-12T08:19:30Z
day: '26'
doi: 10.1021/ja100726a
extern: '1'
intvolume: '       132'
issue: '45'
language:
- iso: eng
month: '10'
oa_version: None
page: 15957-15967
publication: Journal of the American Chemical Society
publication_identifier:
  issn:
  - 0002-7863
  - 1520-5126
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
status: public
title: Quantitative analysis of protein backbone dynamics in microcrystalline ubiquitin
  by solid-state NMR spectroscopy
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 132
year: '2010'
...
---
_id: '8473'
abstract:
- lang: eng
  text: β2-microglobulin (β2m), the light chain of class I major histocompatibility
    complex, is responsible for the dialysis-related amyloidosis and, in patients
    undergoing long term dialysis, the full-length and chemically unmodified β2m converts
    into amyloid fibrils. The protein, belonging to the immunoglobulin superfamily,
    in common to other members of this family, experiences during its folding a long-lived
    intermediate associated to the trans-to-cis isomerization of Pro-32 that has been
    addressed as the precursor of the amyloid fibril formation. In this respect, previous
    studies on the W60G β2m mutant, showing that the lack of Trp-60 prevents fibril
    formation in mild aggregating condition, prompted us to reinvestigate the refolding
    kinetics of wild type and W60G β2m at atomic resolution by real-time NMR. The
    analysis, conducted at ambient temperature by the band selective flip angle short
    transient real-time two-dimensional NMR techniques and probing the β2m states
    every 15 s, revealed a more complex folding energy landscape than previously reported
    for wild type β2m, involving more than a single intermediate species, and shedding
    new light into the fibrillogenic pathway. Moreover, a significant difference in
    the kinetic scheme previously characterized by optical spectroscopic methods was
    discovered for the W60G β2m mutant.
article_processing_charge: No
article_type: original
author:
- first_name: Alessandra
  full_name: Corazza, Alessandra
  last_name: Corazza
- first_name: Enrico
  full_name: Rennella, Enrico
  last_name: Rennella
- first_name: Paul
  full_name: Schanda, Paul
  id: 7B541462-FAF6-11E9-A490-E8DFE5697425
  last_name: Schanda
  orcid: 0000-0002-9350-7606
- first_name: Maria Chiara
  full_name: Mimmi, Maria Chiara
  last_name: Mimmi
- first_name: Thomas
  full_name: Cutuil, Thomas
  last_name: Cutuil
- first_name: Sara
  full_name: Raimondi, Sara
  last_name: Raimondi
- first_name: Sofia
  full_name: Giorgetti, Sofia
  last_name: Giorgetti
- first_name: Federico
  full_name: Fogolari, Federico
  last_name: Fogolari
- first_name: Paolo
  full_name: Viglino, Paolo
  last_name: Viglino
- first_name: Lucio
  full_name: Frydman, Lucio
  last_name: Frydman
- first_name: Maayan
  full_name: Gal, Maayan
  last_name: Gal
- first_name: Vittorio
  full_name: Bellotti, Vittorio
  last_name: Bellotti
- first_name: Bernhard
  full_name: Brutscher, Bernhard
  last_name: Brutscher
- first_name: Gennaro
  full_name: Esposito, Gennaro
  last_name: Esposito
citation:
  ama: Corazza A, Rennella E, Schanda P, et al. Native-unlike long-lived intermediates
    along the folding pathway of the amyloidogenic protein β2-Microglobulin revealed
    by real-time two-dimensional NMR. <i>Journal of Biological Chemistry</i>. 2010;285(8):5827-5835.
    doi:<a href="https://doi.org/10.1074/jbc.m109.061168">10.1074/jbc.m109.061168</a>
  apa: Corazza, A., Rennella, E., Schanda, P., Mimmi, M. C., Cutuil, T., Raimondi,
    S., … Esposito, G. (2010). Native-unlike long-lived intermediates along the folding
    pathway of the amyloidogenic protein β2-Microglobulin revealed by real-time two-dimensional
    NMR. <i>Journal of Biological Chemistry</i>. American Society for Biochemistry
    &#38; Molecular Biology. <a href="https://doi.org/10.1074/jbc.m109.061168">https://doi.org/10.1074/jbc.m109.061168</a>
  chicago: Corazza, Alessandra, Enrico Rennella, Paul Schanda, Maria Chiara Mimmi,
    Thomas Cutuil, Sara Raimondi, Sofia Giorgetti, et al. “Native-Unlike Long-Lived
    Intermediates along the Folding Pathway of the Amyloidogenic Protein Β2-Microglobulin
    Revealed by Real-Time Two-Dimensional NMR.” <i>Journal of Biological Chemistry</i>.
    American Society for Biochemistry &#38; Molecular Biology, 2010. <a href="https://doi.org/10.1074/jbc.m109.061168">https://doi.org/10.1074/jbc.m109.061168</a>.
  ieee: A. Corazza <i>et al.</i>, “Native-unlike long-lived intermediates along the
    folding pathway of the amyloidogenic protein β2-Microglobulin revealed by real-time
    two-dimensional NMR,” <i>Journal of Biological Chemistry</i>, vol. 285, no. 8.
    American Society for Biochemistry &#38; Molecular Biology, pp. 5827–5835, 2010.
  ista: Corazza A, Rennella E, Schanda P, Mimmi MC, Cutuil T, Raimondi S, Giorgetti
    S, Fogolari F, Viglino P, Frydman L, Gal M, Bellotti V, Brutscher B, Esposito
    G. 2010. Native-unlike long-lived intermediates along the folding pathway of the
    amyloidogenic protein β2-Microglobulin revealed by real-time two-dimensional NMR.
    Journal of Biological Chemistry. 285(8), 5827–5835.
  mla: Corazza, Alessandra, et al. “Native-Unlike Long-Lived Intermediates along the
    Folding Pathway of the Amyloidogenic Protein Β2-Microglobulin Revealed by Real-Time
    Two-Dimensional NMR.” <i>Journal of Biological Chemistry</i>, vol. 285, no. 8,
    American Society for Biochemistry &#38; Molecular Biology, 2010, pp. 5827–35,
    doi:<a href="https://doi.org/10.1074/jbc.m109.061168">10.1074/jbc.m109.061168</a>.
  short: A. Corazza, E. Rennella, P. Schanda, M.C. Mimmi, T. Cutuil, S. Raimondi,
    S. Giorgetti, F. Fogolari, P. Viglino, L. Frydman, M. Gal, V. Bellotti, B. Brutscher,
    G. Esposito, Journal of Biological Chemistry 285 (2010) 5827–5835.
date_created: 2020-09-18T10:11:23Z
date_published: 2010-02-19T00:00:00Z
date_updated: 2021-01-12T08:19:31Z
day: '19'
doi: 10.1074/jbc.m109.061168
extern: '1'
intvolume: '       285'
issue: '8'
keyword:
- Cell Biology
- Biochemistry
- Molecular Biology
language:
- iso: eng
month: '02'
oa_version: None
page: 5827-5835
publication: Journal of Biological Chemistry
publication_identifier:
  issn:
  - 0021-9258
  - 1083-351X
publication_status: published
publisher: American Society for Biochemistry & Molecular Biology
quality_controlled: '1'
status: public
title: Native-unlike long-lived intermediates along the folding pathway of the amyloidogenic
  protein β2-Microglobulin revealed by real-time two-dimensional NMR
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 285
year: '2010'
...
---
_id: '8506'
article_processing_charge: No
author:
- first_name: Brian R.
  full_name: Hunt, Brian R.
  last_name: Hunt
- first_name: Vadim
  full_name: Kaloshin, Vadim
  id: FE553552-CDE8-11E9-B324-C0EBE5697425
  last_name: Kaloshin
  orcid: 0000-0002-6051-2628
citation:
  ama: 'Hunt BR, Kaloshin V. Prevalence. In: <i>Handbook of Dynamical Systems</i>.
    Vol 3. Elsevier; 2010:43-87. doi:<a href="https://doi.org/10.1016/s1874-575x(10)00310-3">10.1016/s1874-575x(10)00310-3</a>'
  apa: Hunt, B. R., &#38; Kaloshin, V. (2010). Prevalence. In <i>Handbook of Dynamical
    Systems</i> (Vol. 3, pp. 43–87). Elsevier. <a href="https://doi.org/10.1016/s1874-575x(10)00310-3">https://doi.org/10.1016/s1874-575x(10)00310-3</a>
  chicago: Hunt, Brian R., and Vadim Kaloshin. “Prevalence.” In <i>Handbook of Dynamical
    Systems</i>, 3:43–87. Elsevier, 2010. <a href="https://doi.org/10.1016/s1874-575x(10)00310-3">https://doi.org/10.1016/s1874-575x(10)00310-3</a>.
  ieee: B. R. Hunt and V. Kaloshin, “Prevalence,” in <i>Handbook of Dynamical Systems</i>,
    vol. 3, Elsevier, 2010, pp. 43–87.
  ista: 'Hunt BR, Kaloshin V. 2010.Prevalence. In: Handbook of Dynamical Systems.
    vol. 3, 43–87.'
  mla: Hunt, Brian R., and Vadim Kaloshin. “Prevalence.” <i>Handbook of Dynamical
    Systems</i>, vol. 3, Elsevier, 2010, pp. 43–87, doi:<a href="https://doi.org/10.1016/s1874-575x(10)00310-3">10.1016/s1874-575x(10)00310-3</a>.
  short: B.R. Hunt, V. Kaloshin, in:, Handbook of Dynamical Systems, Elsevier, 2010,
    pp. 43–87.
date_created: 2020-09-18T10:47:48Z
date_published: 2010-01-01T00:00:00Z
date_updated: 2021-01-12T08:19:45Z
day: '01'
doi: 10.1016/s1874-575x(10)00310-3
extern: '1'
intvolume: '         3'
language:
- iso: eng
month: '01'
oa_version: None
page: 43-87
publication: Handbook of Dynamical Systems
publication_identifier:
  isbn:
  - '9780444531414'
  issn:
  - 1874-575X
publication_status: published
publisher: Elsevier
quality_controlled: '1'
status: public
title: Prevalence
type: book_chapter
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 3
year: '2010'
...
---
_id: '8507'
abstract:
- lang: eng
  text: "We study a Cr nearly integrable Hamiltonian system  defined on \U0001D54B3
    × ℝ3. Let  and µΣ1 be the restriction of Lebesgue measure on \U0001D54B3 × ℝ3
    to ∑. We prove there is a perturbation ,  and an orbit (q(t), p(t)): ℝ → \U0001D54B3
    × ℝ3 of the Hamiltonian equation  such that ."
article_processing_charge: No
author:
- first_name: Vadim
  full_name: Kaloshin, Vadim
  id: FE553552-CDE8-11E9-B324-C0EBE5697425
  last_name: Kaloshin
  orcid: 0000-0002-6051-2628
- first_name: KE
  full_name: ZHANG, KE
  last_name: ZHANG
- first_name: YONG
  full_name: ZHENG, YONG
  last_name: ZHENG
citation:
  ama: 'Kaloshin V, ZHANG K, ZHENG Y. Almost dense orbit on energy surface. In: <i>XVIth
    International Congress on Mathematical Physics</i>. World Scientific; 2010:314-322.
    doi:<a href="https://doi.org/10.1142/9789814304634_0017">10.1142/9789814304634_0017</a>'
  apa: 'Kaloshin, V., ZHANG, K., &#38; ZHENG, Y. (2010). Almost dense orbit on energy
    surface. In <i>XVIth International Congress on Mathematical Physics</i> (pp. 314–322).
    Prague, Czech Republic: World Scientific. <a href="https://doi.org/10.1142/9789814304634_0017">https://doi.org/10.1142/9789814304634_0017</a>'
  chicago: Kaloshin, Vadim, KE ZHANG, and YONG ZHENG. “Almost Dense Orbit on Energy
    Surface.” In <i>XVIth International Congress on Mathematical Physics</i>, 314–22.
    World Scientific, 2010. <a href="https://doi.org/10.1142/9789814304634_0017">https://doi.org/10.1142/9789814304634_0017</a>.
  ieee: V. Kaloshin, K. ZHANG, and Y. ZHENG, “Almost dense orbit on energy surface,”
    in <i>XVIth International Congress on Mathematical Physics</i>, Prague, Czech
    Republic, 2010, pp. 314–322.
  ista: Kaloshin V, ZHANG K, ZHENG Y. 2010. Almost dense orbit on energy surface.
    XVIth International Congress on Mathematical Physics. International Congress on
    Mathematical Physics, 314–322.
  mla: Kaloshin, Vadim, et al. “Almost Dense Orbit on Energy Surface.” <i>XVIth International
    Congress on Mathematical Physics</i>, World Scientific, 2010, pp. 314–22, doi:<a
    href="https://doi.org/10.1142/9789814304634_0017">10.1142/9789814304634_0017</a>.
  short: V. Kaloshin, K. ZHANG, Y. ZHENG, in:, XVIth International Congress on Mathematical
    Physics, World Scientific, 2010, pp. 314–322.
conference:
  end_date: 2009-08-08
  location: Prague, Czech Republic
  name: International Congress on Mathematical Physics
  start_date: 2009-08-03
date_created: 2020-09-18T10:47:56Z
date_published: 2010-03-01T00:00:00Z
date_updated: 2021-01-12T08:19:46Z
day: '01'
doi: 10.1142/9789814304634_0017
extern: '1'
language:
- iso: eng
month: '03'
oa_version: None
page: 314-322
publication: XVIth International Congress on Mathematical Physics
publication_identifier:
  isbn:
  - '9789814304627'
  - '9789814304634'
publication_status: published
publisher: World Scientific
quality_controlled: '1'
status: public
title: Almost dense orbit on energy surface
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2010'
...
---
_id: '857'
abstract:
- lang: eng
  text: 'The need to maintain the structural and functional integrity of an evolving
    protein severely restricts the repertoire of acceptable amino-acid substitutions.
    However, it is not known whether these restrictions impose a global limit on how
    far homologous protein sequences can diverge from each other. Here we explore
    the limits of protein evolution using sequence divergence data. We formulate a
    computational approach to study the rate of divergence of distant protein sequences
    and measure this rate for ancient proteins, those that were present in the last
    universal common ancestor. We show that ancient proteins are still diverging from
    each other, indicating an ongoing expansion of the protein sequence universe.
    The slow rate of this divergence is imposed by the sparseness of functional protein
    sequences in sequence space and the ruggedness of the protein fitness landscape:
    98 per cent of sites cannot accept an amino-acid substitution at any given moment
    but a vast majority of all sites may eventually be permitted to evolve when other,
    compensatory, changes occur. Thus, 3.5 × 10 9 yr has not been enough to reach
    the limit of divergent evolution of proteins, and for most proteins the limit
    of sequence similarity imposed by common function may not exceed that of random
    sequences.'
acknowledgement: |
  We thank E. Koonin, Y. Wolf, A. Lobkovsky, D. Petrov, D. Ivankov, J. Sharpe, B. Lehner, Y. Jaeger, P. Vlasov, M. Ptitsyn and M. Roytberg for discussions and A. Kondrashov for extensive feedback on our manuscript. We thank D. Tawfik for inspiring us to start the investigation of the functional limits in sequence space.
author:
- first_name: Inna
  full_name: Povolotskaya, Inna
  last_name: Povolotskaya
- first_name: Fyodor
  full_name: Fyodor Kondrashov
  id: 44FDEF62-F248-11E8-B48F-1D18A9856A87
  last_name: Kondrashov
  orcid: 0000-0001-8243-4694
citation:
  ama: Povolotskaya I, Kondrashov F. Sequence space and the ongoing expansion of the
    protein universe. <i>Nature</i>. 2010;465(7300):922-926. doi:<a href="https://doi.org/10.1038/nature09105">10.1038/nature09105</a>
  apa: Povolotskaya, I., &#38; Kondrashov, F. (2010). Sequence space and the ongoing
    expansion of the protein universe. <i>Nature</i>. Nature Publishing Group. <a
    href="https://doi.org/10.1038/nature09105">https://doi.org/10.1038/nature09105</a>
  chicago: Povolotskaya, Inna, and Fyodor Kondrashov. “Sequence Space and the Ongoing
    Expansion of the Protein Universe.” <i>Nature</i>. Nature Publishing Group, 2010.
    <a href="https://doi.org/10.1038/nature09105">https://doi.org/10.1038/nature09105</a>.
  ieee: I. Povolotskaya and F. Kondrashov, “Sequence space and the ongoing expansion
    of the protein universe,” <i>Nature</i>, vol. 465, no. 7300. Nature Publishing
    Group, pp. 922–926, 2010.
  ista: Povolotskaya I, Kondrashov F. 2010. Sequence space and the ongoing expansion
    of the protein universe. Nature. 465(7300), 922–926.
  mla: Povolotskaya, Inna, and Fyodor Kondrashov. “Sequence Space and the Ongoing
    Expansion of the Protein Universe.” <i>Nature</i>, vol. 465, no. 7300, Nature
    Publishing Group, 2010, pp. 922–26, doi:<a href="https://doi.org/10.1038/nature09105">10.1038/nature09105</a>.
  short: I. Povolotskaya, F. Kondrashov, Nature 465 (2010) 922–926.
date_created: 2018-12-11T11:48:52Z
date_published: 2010-06-17T00:00:00Z
date_updated: 2021-01-12T08:20:05Z
day: '17'
doi: 10.1038/nature09105
extern: 1
intvolume: '       465'
issue: '7300'
month: '06'
page: 922 - 926
publication: Nature
publication_status: published
publisher: Nature Publishing Group
publist_id: '6791'
quality_controlled: 0
status: public
title: Sequence space and the ongoing expansion of the protein universe
type: journal_article
volume: 465
year: '2010'
...
---
_id: '862'
abstract:
- lang: eng
  text: A long-standing controversy in evolutionary biology is whether or not evolving
    lineages can cross valleys on the fitness landscape that correspond to low-fitness
    genotypes, which can eventually enable them to reach isolated fitness peaks1-9.
    Here we study the fitness landscapes traversed by switches between different AU
    and GC Watson-Crick nucleotide pairs at complementary sites of mitochondrial transfer
    RNA stem regions in 83 mammalian species. We find that such Watson-Crick switches
    occur 30-40 times more slowly than pairs of neutral substitutions, and that alleles
    corresponding to GU and AC non-Watson-Crick intermediate states segregate within
    human populations at low frequencies, similar to those of non-synonymous alleles.
    Substitutions leading to a Watson-Crick switch are strongly correlated, especially
    in mitochondrial tRNAs encoded on the GT-nucleotide-rich strand of the mitochondrial
    genome. Using these data we estimate that a typical Watson-Crick switch involves
    crossing a fitness valley of a depth of about 10-3 or even about 10-2, with AC
    intermediates being slightly more deleterious than GU intermediates. This compensatory
    evolution must proceed through rare intermediate variants that never reach fixation.
    The ubiquitous nature of compensatory evolution in mammalian mitochondrial tRNAs
    and other molecules implies that simultaneous fixation of two alleles that are
    individually deleterious may be a common phenomenon at the molecular level.
acknowledgement: We thank H. Innan, M. Laessig, R. Guigo, I. Povolotskaya, D. Ivankov
  and M. Breen for thoughtful discussions and critical reading of the manuscript.
author:
- first_name: Margarita
  full_name: Meer, Margarita V
  last_name: Meer
- first_name: Alexey
  full_name: Kondrashov, Alexey S
  last_name: Kondrashov
- first_name: Yael
  full_name: Artzy-Randrup, Yael
  last_name: Artzy Randrup
- first_name: Fyodor
  full_name: Fyodor Kondrashov
  id: 44FDEF62-F248-11E8-B48F-1D18A9856A87
  last_name: Kondrashov
  orcid: 0000-0001-8243-4694
citation:
  ama: Meer M, Kondrashov A, Artzy Randrup Y, Kondrashov F. Compensatory evolution
    in mitochondrial tRNAs navigates valleys of low fitness. <i>Nature</i>. 2010;464(7286):279-282.
    doi:<a href="https://doi.org/10.1038/nature08691">10.1038/nature08691</a>
  apa: Meer, M., Kondrashov, A., Artzy Randrup, Y., &#38; Kondrashov, F. (2010). Compensatory
    evolution in mitochondrial tRNAs navigates valleys of low fitness. <i>Nature</i>.
    Nature Publishing Group. <a href="https://doi.org/10.1038/nature08691">https://doi.org/10.1038/nature08691</a>
  chicago: Meer, Margarita, Alexey Kondrashov, Yael Artzy Randrup, and Fyodor Kondrashov.
    “Compensatory Evolution in Mitochondrial TRNAs Navigates Valleys of Low Fitness.”
    <i>Nature</i>. Nature Publishing Group, 2010. <a href="https://doi.org/10.1038/nature08691">https://doi.org/10.1038/nature08691</a>.
  ieee: M. Meer, A. Kondrashov, Y. Artzy Randrup, and F. Kondrashov, “Compensatory
    evolution in mitochondrial tRNAs navigates valleys of low fitness,” <i>Nature</i>,
    vol. 464, no. 7286. Nature Publishing Group, pp. 279–282, 2010.
  ista: Meer M, Kondrashov A, Artzy Randrup Y, Kondrashov F. 2010. Compensatory evolution
    in mitochondrial tRNAs navigates valleys of low fitness. Nature. 464(7286), 279–282.
  mla: Meer, Margarita, et al. “Compensatory Evolution in Mitochondrial TRNAs Navigates
    Valleys of Low Fitness.” <i>Nature</i>, vol. 464, no. 7286, Nature Publishing
    Group, 2010, pp. 279–82, doi:<a href="https://doi.org/10.1038/nature08691">10.1038/nature08691</a>.
  short: M. Meer, A. Kondrashov, Y. Artzy Randrup, F. Kondrashov, Nature 464 (2010)
    279–282.
date_created: 2018-12-11T11:48:54Z
date_published: 2010-03-11T00:00:00Z
date_updated: 2021-01-12T08:20:20Z
day: '11'
doi: 10.1038/nature08691
extern: 1
intvolume: '       464'
issue: '7286'
month: '03'
page: 279 - 282
publication: Nature
publication_status: published
publisher: Nature Publishing Group
publist_id: '6784'
quality_controlled: 0
status: public
title: Compensatory evolution in mitochondrial tRNAs navigates valleys of low fitness
type: journal_article
volume: 464
year: '2010'
...
---
_id: '872'
abstract:
- lang: eng
  text: The rate of spontaneous mutation in natural populations is a fundamental parameter
    for many evolutionary phenomena. Because the rate of mutation is generally low,
    most of what is currently known about mutation has been obtained through indirect,
    complex and imprecise methodological approaches. However, in the past few years
    genome-wide sequencing of closely related individuals has made it possible to
    estimate the rates of mutation directly at the level of the DNA, avoiding most
    of the problems associated with using indirect methods. Here, we review the methods
    used in the past with an emphasis on next generation sequencing, which may soon
    make the accurate measurement of spontaneous mutation rates a matter of routine.
author:
- first_name: Fyodor
  full_name: Fyodor Kondrashov
  id: 44FDEF62-F248-11E8-B48F-1D18A9856A87
  last_name: Kondrashov
  orcid: 0000-0001-8243-4694
- first_name: Alexey
  full_name: Kondrashov, Alexey S
  last_name: Kondrashov
citation:
  ama: Kondrashov F, Kondrashov A. Measurements of spontaneous rates of mutations
    in the recent past and the near future. <i>Philosophical Transactions of the Royal
    Society of London Series B, Biological Sciences</i>. 2010;365(1544):1169-1176.
    doi:<a href="https://doi.org/10.1098/rstb.2009.0286">10.1098/rstb.2009.0286</a>
  apa: Kondrashov, F., &#38; Kondrashov, A. (2010). Measurements of spontaneous rates
    of mutations in the recent past and the near future. <i>Philosophical Transactions
    of the Royal Society of London. Series B, Biological Sciences</i>. Royal Society,
    The. <a href="https://doi.org/10.1098/rstb.2009.0286">https://doi.org/10.1098/rstb.2009.0286</a>
  chicago: Kondrashov, Fyodor, and Alexey Kondrashov. “Measurements of Spontaneous
    Rates of Mutations in the Recent Past and the near Future.” <i>Philosophical Transactions
    of the Royal Society of London. Series B, Biological Sciences</i>. Royal Society,
    The, 2010. <a href="https://doi.org/10.1098/rstb.2009.0286">https://doi.org/10.1098/rstb.2009.0286</a>.
  ieee: F. Kondrashov and A. Kondrashov, “Measurements of spontaneous rates of mutations
    in the recent past and the near future,” <i>Philosophical Transactions of the
    Royal Society of London. Series B, Biological Sciences</i>, vol. 365, no. 1544.
    Royal Society, The, pp. 1169–1176, 2010.
  ista: Kondrashov F, Kondrashov A. 2010. Measurements of spontaneous rates of mutations
    in the recent past and the near future. Philosophical Transactions of the Royal
    Society of London. Series B, Biological Sciences. 365(1544), 1169–1176.
  mla: Kondrashov, Fyodor, and Alexey Kondrashov. “Measurements of Spontaneous Rates
    of Mutations in the Recent Past and the near Future.” <i>Philosophical Transactions
    of the Royal Society of London. Series B, Biological Sciences</i>, vol. 365, no.
    1544, Royal Society, The, 2010, pp. 1169–76, doi:<a href="https://doi.org/10.1098/rstb.2009.0286">10.1098/rstb.2009.0286</a>.
  short: F. Kondrashov, A. Kondrashov, Philosophical Transactions of the Royal Society
    of London. Series B, Biological Sciences 365 (2010) 1169–1176.
date_created: 2018-12-11T11:48:57Z
date_published: 2010-04-27T00:00:00Z
date_updated: 2021-01-12T08:20:43Z
day: '27'
doi: 10.1098/rstb.2009.0286
extern: 1
intvolume: '       365'
issue: '1544'
month: '04'
page: 1169 - 1176
publication: Philosophical Transactions of the Royal Society of London. Series B,
  Biological Sciences
publication_status: published
publisher: Royal Society, The
publist_id: '6772'
quality_controlled: 0
status: public
title: Measurements of spontaneous rates of mutations in the recent past and the near
  future
type: journal_article
volume: 365
year: '2010'
...
---
_id: '884'
abstract:
- lang: eng
  text: 'Background: Divergence of two independently evolving sequences that originated
    from a common ancestor can be described by two parameters, the asymptotic level
    of divergence E and the rate r at which this level of divergence is approached.
    Constant negative selection impedes allele replacements and, therefore, is routinely
    assumed to decelerate sequence divergence. However, its impact on E and on r has
    not been formally investigated.Results: Strong selection that favors only one
    allele can make E arbitrarily small and r arbitrarily large. In contrast, in the
    case of 4 possible alleles and equal mutation rates, the lowest value of r, attained
    when two alleles confer equal fitnesses and the other two are strongly deleterious,
    is only two times lower than its value under selective neutrality.Conclusions:
    Constant selection can strongly constrain the level of sequence divergence, but
    cannot reduce substantially the rate at which this level is approached. In particular,
    under any constant selection the divergence of sequences that accumulated one
    substitution per neutral site since their origin from the common ancestor must
    already constitute at least one half of the asymptotic divergence at sites under
    such selection.Reviewers: This article was reviewed by Drs. Nicolas Galtier, Sergei
    Maslov, and Nick Grishin.'
author:
- first_name: Alexey
  full_name: Kondrashov, Alexey S
  last_name: Kondrashov
- first_name: Inna
  full_name: Povolotskaya, Inna
  last_name: Povolotskaya
- first_name: Dmitry
  full_name: Ivankov, Dmitry N
  last_name: Ivankov
- first_name: Fyodor
  full_name: Fyodor Kondrashov
  id: 44FDEF62-F248-11E8-B48F-1D18A9856A87
  last_name: Kondrashov
  orcid: 0000-0001-8243-4694
citation:
  ama: Kondrashov A, Povolotskaya I, Ivankov D, Kondrashov F. Rate of sequence divergence
    under constant selection. <i>Biology Direct</i>. 2010;5. doi:<a href="https://doi.org/10.1186/1745-6150-5-5">10.1186/1745-6150-5-5</a>
  apa: Kondrashov, A., Povolotskaya, I., Ivankov, D., &#38; Kondrashov, F. (2010).
    Rate of sequence divergence under constant selection. <i>Biology Direct</i>. BioMed
    Central. <a href="https://doi.org/10.1186/1745-6150-5-5">https://doi.org/10.1186/1745-6150-5-5</a>
  chicago: Kondrashov, Alexey, Inna Povolotskaya, Dmitry Ivankov, and Fyodor Kondrashov.
    “Rate of Sequence Divergence under Constant Selection.” <i>Biology Direct</i>.
    BioMed Central, 2010. <a href="https://doi.org/10.1186/1745-6150-5-5">https://doi.org/10.1186/1745-6150-5-5</a>.
  ieee: A. Kondrashov, I. Povolotskaya, D. Ivankov, and F. Kondrashov, “Rate of sequence
    divergence under constant selection,” <i>Biology Direct</i>, vol. 5. BioMed Central,
    2010.
  ista: Kondrashov A, Povolotskaya I, Ivankov D, Kondrashov F. 2010. Rate of sequence
    divergence under constant selection. Biology Direct. 5.
  mla: Kondrashov, Alexey, et al. “Rate of Sequence Divergence under Constant Selection.”
    <i>Biology Direct</i>, vol. 5, BioMed Central, 2010, doi:<a href="https://doi.org/10.1186/1745-6150-5-5">10.1186/1745-6150-5-5</a>.
  short: A. Kondrashov, I. Povolotskaya, D. Ivankov, F. Kondrashov, Biology Direct
    5 (2010).
date_created: 2018-12-11T11:49:00Z
date_published: 2010-01-21T00:00:00Z
date_updated: 2021-01-12T08:21:15Z
day: '21'
doi: 10.1186/1745-6150-5-5
extern: 1
intvolume: '         5'
license: https://creativecommons.org/licenses/by/4.0/
month: '01'
publication: Biology Direct
publication_status: published
publisher: BioMed Central
publist_id: '6762'
quality_controlled: 0
status: public
title: Rate of sequence divergence under constant selection
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
volume: 5
year: '2010'
...
---
_id: '89'
abstract:
- lang: eng
  text: We demonstrate the operation of a device that can produce chitosan nanoparticles
    in a tunable size range from 50-300 nm with small size dispersion. A piezoelectric
    oscillator operated at megahertz frequencies is used to aerosolize a solution
    containing dissolved chitosan. The solvent is then evaporated from the aerosolized
    droplets in a heat pipe, leaving monodisperse nanoparticles to be collected. The
    nanoparticle size is controlled both by the concentration of the dissolved polymer
    and by the size of the aerosol droplets that are created. Our device can be used
    with any polymer or polymer/therapeutic combination that can be prepared in a
    homogeneous solution and vaporized.
acknowledgement: This work was supported by the National Science Foundation under
  Grants PHY-0456898 and PHY-0757989, and acknowledgment is made to the Donors of
  the Petroleum Research Fund administered by the American Chemical Society for partial
  support of this research.
author:
- first_name: Ian
  full_name: Wright, Ian
  last_name: Wright
- first_name: Andrew P
  full_name: Higginbotham, Andrew P
  id: 4AD6785A-F248-11E8-B48F-1D18A9856A87
  last_name: Higginbotham
  orcid: 0000-0003-2607-2363
- first_name: Shenda
  full_name: Baker, Shenda
  last_name: Baker
- first_name: Tom
  full_name: Donnelly, Tom
  last_name: Donnelly
citation:
  ama: Wright I, Higginbotham AP, Baker S, Donnelly T. Generation of nanoparticles
    of controlled size using ultrasonic piezoelectric oscillators in solution. <i>ACS
    Applied Materials and Interfaces</i>. 2010;2(8):2360-2364. doi:<a href="https://doi.org/10.1021/am100375w">10.1021/am100375w</a>
  apa: Wright, I., Higginbotham, A. P., Baker, S., &#38; Donnelly, T. (2010). Generation
    of nanoparticles of controlled size using ultrasonic piezoelectric oscillators
    in solution. <i>ACS Applied Materials and Interfaces</i>. American Chemical Society.
    <a href="https://doi.org/10.1021/am100375w">https://doi.org/10.1021/am100375w</a>
  chicago: Wright, Ian, Andrew P Higginbotham, Shenda Baker, and Tom Donnelly. “Generation
    of Nanoparticles of Controlled Size Using Ultrasonic Piezoelectric Oscillators
    in Solution.” <i>ACS Applied Materials and Interfaces</i>. American Chemical Society,
    2010. <a href="https://doi.org/10.1021/am100375w">https://doi.org/10.1021/am100375w</a>.
  ieee: I. Wright, A. P. Higginbotham, S. Baker, and T. Donnelly, “Generation of nanoparticles
    of controlled size using ultrasonic piezoelectric oscillators in solution,” <i>ACS
    Applied Materials and Interfaces</i>, vol. 2, no. 8. American Chemical Society,
    pp. 2360–2364, 2010.
  ista: Wright I, Higginbotham AP, Baker S, Donnelly T. 2010. Generation of nanoparticles
    of controlled size using ultrasonic piezoelectric oscillators in solution. ACS
    Applied Materials and Interfaces. 2(8), 2360–2364.
  mla: Wright, Ian, et al. “Generation of Nanoparticles of Controlled Size Using Ultrasonic
    Piezoelectric Oscillators in Solution.” <i>ACS Applied Materials and Interfaces</i>,
    vol. 2, no. 8, American Chemical Society, 2010, pp. 2360–64, doi:<a href="https://doi.org/10.1021/am100375w">10.1021/am100375w</a>.
  short: I. Wright, A.P. Higginbotham, S. Baker, T. Donnelly, ACS Applied Materials
    and Interfaces 2 (2010) 2360–2364.
date_created: 2018-12-11T11:44:34Z
date_published: 2010-07-20T00:00:00Z
date_updated: 2021-01-12T08:21:17Z
day: '20'
doi: 10.1021/am100375w
extern: '1'
external_id:
  pmid:
  - '    20735108'
intvolume: '         2'
issue: '8'
language:
- iso: eng
month: '07'
oa_version: None
page: 2360 - 2364
pmid: 1
publication: ACS Applied Materials and Interfaces
publication_status: published
publisher: American Chemical Society
publist_id: '7965'
quality_controlled: '1'
status: public
title: Generation of nanoparticles of controlled size using ultrasonic piezoelectric
  oscillators in solution
type: journal_article
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 2
year: '2010'
...
---
_id: '891'
abstract:
- lang: eng
  text: Gene duplications and their subsequent divergence play an important part in
    the evolution of novel gene functions. Several models for the emergence, maintenance
    and evolution of gene copies have been proposed. However, a clear consensus on
    how gene duplications are fixed and maintained in genomes is lacking. Here, we
    present a comprehensive classification of the models that are relevant to all
    stages of the evolution of gene duplications. Each model predicts a unique combination
    of evolutionary dynamics and functional properties. Setting out these predictions
    is an important step towards identifying the main mechanisms that are involved
    in the evolution of gene duplications.
acknowledgement: |
  We thank M. Lynch for insightful comments on the manuscript.
author:
- first_name: Hideki
  full_name: Innan, Hideki
  last_name: Innan
- first_name: Fyodor
  full_name: Fyodor Kondrashov
  id: 44FDEF62-F248-11E8-B48F-1D18A9856A87
  last_name: Kondrashov
  orcid: 0000-0001-8243-4694
citation:
  ama: 'Innan H, Kondrashov F. The evolution of gene duplications: Classifying and
    distinguishing between models. <i>Nature Reviews Genetics</i>. 2010;11(2):97-108.
    doi:<a href="https://doi.org/10.1038/nrg2689">10.1038/nrg2689</a>'
  apa: 'Innan, H., &#38; Kondrashov, F. (2010). The evolution of gene duplications:
    Classifying and distinguishing between models. <i>Nature Reviews Genetics</i>.
    Nature Publishing Group. <a href="https://doi.org/10.1038/nrg2689">https://doi.org/10.1038/nrg2689</a>'
  chicago: 'Innan, Hideki, and Fyodor Kondrashov. “The Evolution of Gene Duplications:
    Classifying and Distinguishing between Models.” <i>Nature Reviews Genetics</i>.
    Nature Publishing Group, 2010. <a href="https://doi.org/10.1038/nrg2689">https://doi.org/10.1038/nrg2689</a>.'
  ieee: 'H. Innan and F. Kondrashov, “The evolution of gene duplications: Classifying
    and distinguishing between models,” <i>Nature Reviews Genetics</i>, vol. 11, no.
    2. Nature Publishing Group, pp. 97–108, 2010.'
  ista: 'Innan H, Kondrashov F. 2010. The evolution of gene duplications: Classifying
    and distinguishing between models. Nature Reviews Genetics. 11(2), 97–108.'
  mla: 'Innan, Hideki, and Fyodor Kondrashov. “The Evolution of Gene Duplications:
    Classifying and Distinguishing between Models.” <i>Nature Reviews Genetics</i>,
    vol. 11, no. 2, Nature Publishing Group, 2010, pp. 97–108, doi:<a href="https://doi.org/10.1038/nrg2689">10.1038/nrg2689</a>.'
  short: H. Innan, F. Kondrashov, Nature Reviews Genetics 11 (2010) 97–108.
date_created: 2018-12-11T11:49:03Z
date_published: 2010-02-01T00:00:00Z
date_updated: 2021-01-12T08:21:19Z
day: '01'
doi: 10.1038/nrg2689
extern: 1
intvolume: '        11'
issue: '2'
month: '02'
page: 97 - 108
publication: Nature Reviews Genetics
publication_status: published
publisher: Nature Publishing Group
publist_id: '6755'
quality_controlled: 0
status: public
title: 'The evolution of gene duplications: Classifying and distinguishing between
  models'
type: journal_article
volume: 11
year: '2010'
...
