---
OA_place: repository
OA_type: green
_id: '19520'
abstract:
- lang: eng
  text: Vertebrates exhibit a wide range of motor behaviors, ranging from swimming
    to complex limb-based movements. Here we take advantage of frog metamorphosis,
    which captures a swim-to-limb-based movement transformation during the development
    of a single organism, to explore changes in the underlying spinal circuits. We
    find that the tadpole spinal cord contains small and largely homogeneous populations
    of motor neurons (MNs) and V1 interneurons (V1s) at early escape swimming stages.
    These neuronal populations only modestly increase in number and subtype heterogeneity
    with the emergence of free swimming. In contrast, during frog metamorphosis and
    the emergence of limb movement, there is a dramatic expansion of MN and V1 interneuron
    number and transcriptional heterogeneity, culminating in cohorts of neurons that
    exhibit striking molecular similarity to mammalian motor circuits. CRISPR/Cas9-mediated
    gene disruption of the limb MN and V1 determinants FoxP1 and Engrailed-1, respectively,
    results in severe but selective deficits in tail and limb function. Our work thus
    demonstrates that neural diversity scales exponentially with increasing behavioral
    complexity and illustrates striking evolutionary conservation in the molecular
    organization and function of motor circuits across species.
acknowledged_ssus:
- _id: Bio
acknowledgement: "We would like to thank the members of the Sweeney Lab (especially
  Stavros Papadopoulos and\r\nSophie Gobeil) for their contributions to this project
  and, in addition to the lab, Graziana Gatto\r\nand Mario de Bono, for discussion,
  and support. We are also grateful to Tom Jessell and Chris\r\nKintner for their
  scientific insight and mentorship during the conception of this project. This\r\nproject
  would also not have been possible with the technical support of the Matthias Nowak,\r\nVerena
  Mayer and the Aquatics as well as the Imaging and Optics Facility support teams\r\n(ISTA).
  In addition, we thank our funding sources for providing the resources to do these\r\nexperiments:
  FTI Strategy Lower Austria Dissertation Grant Number FT121-D-046 (D.V.);\r\nHorizon
  Europe ERC Starting Grant Number 101041551 (L.B.S., F.A.T. and D.V); Special\r\nResearch
  Program (SFB) of the Austrian Science Fund (FWF) Project number F7814-B (L.B.S);\r\nNINDS
  5R35NS116858 (J.S.D); CZI grant DAF2020-225401 (DOI): 10.37921/120055ratwvi\r\n(R.H.);
  NIH grant number R01NS123116 (J.B.B); American Lebanese Syrian Associated\r\nCharities
  (ALSAC) (J.B.B.); German Academic Exchange Service (DAAD) IFI Grant Number\r\n57515251-91853472
  (Z.H.); and Project A.L.S. (S.B-M.). "
article_processing_charge: No
author:
- first_name: David
  full_name: Vijatovic, David
  id: cf391e77-ec3c-11ea-a124-d69323410b58
  last_name: Vijatovic
- first_name: 'Florina Alexandra '
  full_name: 'Toma, Florina Alexandra '
  id: 2f73f876-f128-11eb-9611-b96b5a30cb0e
  last_name: Toma
- first_name: Zoe P
  full_name: Harrington, Zoe P
  id: a8144562-32c9-11ee-b5ce-d9800628bda2
  last_name: Harrington
  orcid: 0009-0008-0158-4032
- first_name: Christoph M
  full_name: Sommer, Christoph M
  id: 4DF26D8C-F248-11E8-B48F-1D18A9856A87
  last_name: Sommer
  orcid: 0000-0003-1216-9105
- first_name: Robert
  full_name: Hauschild, Robert
  id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87
  last_name: Hauschild
  orcid: 0000-0001-9843-3522
- first_name: Alexandra J.
  full_name: Trevisan, Alexandra J.
  last_name: Trevisan
- first_name: Phillip
  full_name: Chapman, Phillip
  last_name: Chapman
- first_name: Mara
  full_name: Julseth, Mara
  id: 1cf464b2-dc7d-11ea-9b2f-f9b1aa9417d1
  last_name: Julseth
- first_name: Susan
  full_name: Brenner-Morton, Susan
  last_name: Brenner-Morton
- first_name: Mariano I.
  full_name: Gabitto, Mariano I.
  last_name: Gabitto
- first_name: Jeremy S.
  full_name: Dasen, Jeremy S.
  last_name: Dasen
- first_name: Jay B.
  full_name: Bikoff, Jay B.
  last_name: Bikoff
- first_name: Lora Beatrice Jaeger
  full_name: Sweeney, Lora Beatrice Jaeger
  id: 56BE8254-C4F0-11E9-8E45-0B23E6697425
  last_name: Sweeney
  orcid: 0000-0001-9242-5601
citation:
  ama: Vijatovic D, Toma FA, Harrington ZP, et al. Spinal neuron diversity scales
    exponentially with swim-to-limb transformation during frog metamorphosis. <i>bioRxiv</i>.
    doi:<a href="https://doi.org/10.1101/2024.09.20.614050">10.1101/2024.09.20.614050</a>
  apa: Vijatovic, D., Toma, F. A., Harrington, Z. P., Sommer, C. M., Hauschild, R.,
    Trevisan, A. J., … Sweeney, L. B. (n.d.). Spinal neuron diversity scales exponentially
    with swim-to-limb transformation during frog metamorphosis. <i>bioRxiv</i>. <a
    href="https://doi.org/10.1101/2024.09.20.614050">https://doi.org/10.1101/2024.09.20.614050</a>
  chicago: Vijatovic, David, Florina Alexandra  Toma, Zoe P Harrington, Christoph
    M Sommer, Robert Hauschild, Alexandra J. Trevisan, Phillip Chapman, et al. “Spinal
    Neuron Diversity Scales Exponentially with Swim-to-Limb Transformation during
    Frog Metamorphosis.” <i>BioRxiv</i>, n.d. <a href="https://doi.org/10.1101/2024.09.20.614050">https://doi.org/10.1101/2024.09.20.614050</a>.
  ieee: D. Vijatovic <i>et al.</i>, “Spinal neuron diversity scales exponentially
    with swim-to-limb transformation during frog metamorphosis,” <i>bioRxiv</i>. .
  ista: Vijatovic D, Toma FA, Harrington ZP, Sommer CM, Hauschild R, Trevisan AJ,
    Chapman P, Julseth M, Brenner-Morton S, Gabitto MI, Dasen JS, Bikoff JB, Sweeney
    LB. Spinal neuron diversity scales exponentially with swim-to-limb transformation
    during frog metamorphosis. bioRxiv, <a href="https://doi.org/10.1101/2024.09.20.614050">10.1101/2024.09.20.614050</a>.
  mla: Vijatovic, David, et al. “Spinal Neuron Diversity Scales Exponentially with
    Swim-to-Limb Transformation during Frog Metamorphosis.” <i>BioRxiv</i>, doi:<a
    href="https://doi.org/10.1101/2024.09.20.614050">10.1101/2024.09.20.614050</a>.
  short: D. Vijatovic, F.A. Toma, Z.P. Harrington, C.M. Sommer, R. Hauschild, A.J.
    Trevisan, P. Chapman, M. Julseth, S. Brenner-Morton, M.I. Gabitto, J.S. Dasen,
    J.B. Bikoff, L.B. Sweeney, BioRxiv (n.d.).
corr_author: '1'
date_created: 2025-04-07T08:48:28Z
date_published: 2024-09-27T00:00:00Z
date_updated: 2025-05-14T11:40:13Z
day: '27'
department:
- _id: LoSw
- _id: TiVo
- _id: Bio
- _id: NiBa
doi: 10.1101/2024.09.20.614050
fulldoi: https://doi.org/10.1101/2024.09.20.614050
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1101/2024.09.20.614050
month: '09'
oa: 1
oa_version: Preprint
project:
- _id: bd73af52-d553-11ed-ba76-912049f0ac7a
  grant_number: FTI21-D-046
  name: Development of V1 interneuron diversity during swim-to-walk transition of
    Xenopus metamorphosis
- _id: ebb66355-77a9-11ec-83b8-b8ac210a4dae
  grant_number: '101041551'
  name: Development and Evolution of Tetrapod Motor Circuits
- _id: c08e9ad1-5a5b-11eb-8a69-9d1cf3b07473
  grant_number: CZI01
  name: Tools for automation and feedback microscopy
publication: bioRxiv
publication_status: submitted
status: public
title: Spinal neuron diversity scales exponentially with swim-to-limb transformation
  during frog metamorphosis
type: preprint
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2024'
...
---
OA_place: repository
OA_type: green
_id: '19800'
abstract:
- lang: eng
  text: "This archive contains all the code and data necessary to reproduce the results
    presented in the \r\n\"Mapping the attractor landscape of Boolean networks\" paper."
article_processing_charge: No
author:
- first_name: Van Giang
  full_name: trinh, Van Giang
  last_name: trinh
- first_name: Kyu Hyong
  full_name: Park, Kyu Hyong
  last_name: Park
- first_name: Samuel
  full_name: Pastva, Samuel
  id: 07c5ea74-f61c-11ec-a664-aa7c5d957b2b
  last_name: Pastva
  orcid: 0000-0003-1993-0331
- first_name: Jordan
  full_name: Rozum, Jordan
  last_name: Rozum
citation:
  ama: trinh VG, Park KH, Pastva S, Rozum J. Mapping the attractor landscape of Boolean
    networks. 2024. doi:<a href="https://doi.org/10.5281/ZENODO.13854759">10.5281/ZENODO.13854759</a>
  apa: trinh, V. G., Park, K. H., Pastva, S., &#38; Rozum, J. (2024). Mapping the
    attractor landscape of Boolean networks. Zenodo. <a href="https://doi.org/10.5281/ZENODO.13854759">https://doi.org/10.5281/ZENODO.13854759</a>
  chicago: trinh, Van Giang, Kyu Hyong Park, Samuel Pastva, and Jordan Rozum. “Mapping
    the Attractor Landscape of Boolean Networks.” Zenodo, 2024. <a href="https://doi.org/10.5281/ZENODO.13854759">https://doi.org/10.5281/ZENODO.13854759</a>.
  ieee: V. G. trinh, K. H. Park, S. Pastva, and J. Rozum, “Mapping the attractor landscape
    of Boolean networks.” Zenodo, 2024.
  ista: trinh VG, Park KH, Pastva S, Rozum J. 2024. Mapping the attractor landscape
    of Boolean networks, Zenodo, <a href="https://doi.org/10.5281/ZENODO.13854759">10.5281/ZENODO.13854759</a>.
  mla: trinh, Van Giang, et al. <i>Mapping the Attractor Landscape of Boolean Networks</i>.
    Zenodo, 2024, doi:<a href="https://doi.org/10.5281/ZENODO.13854759">10.5281/ZENODO.13854759</a>.
  short: V.G. trinh, K.H. Park, S. Pastva, J. Rozum, (2024).
date_created: 2025-06-10T07:10:01Z
date_published: 2024-09-28T00:00:00Z
date_updated: 2025-09-30T12:46:33Z
day: '28'
ddc:
- '000'
department:
- _id: ToHe
doi: 10.5281/ZENODO.13854759
fulldoi: https://doi.org/10.5281/ZENODO.13854759
has_accepted_license: '1'
main_file_link:
- open_access: '1'
  url: https://doi.org/10.5281/zenodo.13854760
month: '09'
oa: 1
oa_version: Published Version
publisher: Zenodo
related_material:
  record:
  - id: '19796'
    relation: used_in_publication
    status: public
status: public
title: Mapping the attractor landscape of Boolean networks
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: research_data_reference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2024'
...
---
OA_place: publisher
OA_type: hybrid
_id: '19809'
abstract:
- lang: eng
  text: In many physical situations in which many-body assemblies exist at temperature
    T, a characteristic quantum-mechanical time scale of approximately h/kbT can be
    identified in both theory and experiment, leading to speculation that it may be
    the shortest meaningful time in such circumstances. This behavior can be investigated
    by probing the scattering rate of electrons in a broad class of materials often
    referred to as “strongly correlated metals”. It is clear that in some cases only
    electron–electron scattering can be its cause, while in others it arises from
    high-temperature scattering of electrons from quantized lattice vibrations, i.e.,
    phonons. In metallic oxides, which are among the most studied materials, analysis
    of electrical transport does not satisfactorily identify the relevant scattering
    mechanism at “high” temperatures near room temperature. We therefore employ a
    contactless optical method to measure thermal diffusivity in two Ru-based layered
    perovskites, Sr3Ru2O7 and Sr2RuO4, and use the measurements to extract the dimensionless
    Lorenz ratio. By comparing our results to the literature data on both conventional
    and unconventional metals, we show how the analysis of high-temperature thermal
    transport can both give important insight into dominant scattering mechanisms
    and be offered as a stringent test of theories attempting to explain anomalous
    scattering.
article_processing_charge: No
article_type: original
author:
- first_name: Fei
  full_name: Sun, Fei
  last_name: Sun
- first_name: Simli
  full_name: Mishra, Simli
  last_name: Mishra
- first_name: Ulrike
  full_name: Stockert, Ulrike
  last_name: Stockert
- first_name: Ramzy
  full_name: Daou, Ramzy
  last_name: Daou
- first_name: Naoki
  full_name: Kikugawa, Naoki
  last_name: Kikugawa
- first_name: Robin S.
  full_name: Perry, Robin S.
  last_name: Perry
- first_name: Elena
  full_name: Hassinger, Elena
  last_name: Hassinger
- first_name: Sean A.
  full_name: Hartnoll, Sean A.
  last_name: Hartnoll
- first_name: Andrew P.
  full_name: Mackenzie, Andrew P.
  last_name: Mackenzie
- first_name: Veronika
  full_name: Sunko, Veronika
  id: 23cb1cf6-2c7a-11ef-91a4-f72fc19f20b3
  last_name: Sunko
  orcid: 0000-0003-2724-3523
citation:
  ama: Sun F, Mishra S, Stockert U, et al. The Lorenz ratio as a guide to scattering
    contributions to transport in strongly correlated metals. <i>Proceedings of the
    National Academy of Sciences</i>. 2024;121(35). doi:<a href="https://doi.org/10.1073/pnas.2318159121">10.1073/pnas.2318159121</a>
  apa: Sun, F., Mishra, S., Stockert, U., Daou, R., Kikugawa, N., Perry, R. S., …
    Sunko, V. (2024). The Lorenz ratio as a guide to scattering contributions to transport
    in strongly correlated metals. <i>Proceedings of the National Academy of Sciences</i>.
    National Academy of Sciences. <a href="https://doi.org/10.1073/pnas.2318159121">https://doi.org/10.1073/pnas.2318159121</a>
  chicago: Sun, Fei, Simli Mishra, Ulrike Stockert, Ramzy Daou, Naoki Kikugawa, Robin
    S. Perry, Elena Hassinger, Sean A. Hartnoll, Andrew P. Mackenzie, and Veronika
    Sunko. “The Lorenz Ratio as a Guide to Scattering Contributions to Transport in
    Strongly Correlated Metals.” <i>Proceedings of the National Academy of Sciences</i>.
    National Academy of Sciences, 2024. <a href="https://doi.org/10.1073/pnas.2318159121">https://doi.org/10.1073/pnas.2318159121</a>.
  ieee: F. Sun <i>et al.</i>, “The Lorenz ratio as a guide to scattering contributions
    to transport in strongly correlated metals,” <i>Proceedings of the National Academy
    of Sciences</i>, vol. 121, no. 35. National Academy of Sciences, 2024.
  ista: Sun F, Mishra S, Stockert U, Daou R, Kikugawa N, Perry RS, Hassinger E, Hartnoll
    SA, Mackenzie AP, Sunko V. 2024. The Lorenz ratio as a guide to scattering contributions
    to transport in strongly correlated metals. Proceedings of the National Academy
    of Sciences. 121(35).
  mla: Sun, Fei, et al. “The Lorenz Ratio as a Guide to Scattering Contributions to
    Transport in Strongly Correlated Metals.” <i>Proceedings of the National Academy
    of Sciences</i>, vol. 121, no. 35, National Academy of Sciences, 2024, doi:<a
    href="https://doi.org/10.1073/pnas.2318159121">10.1073/pnas.2318159121</a>.
  short: F. Sun, S. Mishra, U. Stockert, R. Daou, N. Kikugawa, R.S. Perry, E. Hassinger,
    S.A. Hartnoll, A.P. Mackenzie, V. Sunko, Proceedings of the National Academy of
    Sciences 121 (2024).
date_created: 2025-06-10T09:12:41Z
date_published: 2024-08-27T00:00:00Z
date_updated: 2025-06-10T11:50:48Z
day: '27'
doi: 10.1073/pnas.2318159121
extern: '1'
external_id:
  pmid:
  - '39172781'
fulldoi: https://doi.org/10.1073/pnas.2318159121
has_accepted_license: '1'
intvolume: '       121'
issue: '35'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1073/pnas.2318159121
month: '08'
oa: 1
oa_version: Published Version
pmid: 1
publication: Proceedings of the National Academy of Sciences
publication_identifier:
  eissn:
  - 1091-6490
  issn:
  - 0027-8424
publication_status: published
publisher: National Academy of Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: The Lorenz ratio as a guide to scattering contributions to transport in strongly
  correlated metals
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 121
year: '2024'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
_id: '19816'
abstract:
- lang: eng
  text: 'Understanding and manipulating emergent phases, which are themes at the forefront
    of quantum-materials research, rely on identifying their underlying symmetries.
    This general principle has been particularly prominent in materials with coupled
    electronic and magnetic degrees of freedom, in which magnetic order influences
    the electronic band structure and can lead to exotic topological effects. However,
    identifying symmetry of a magnetically ordered phase can pose a challenge, particularly
    in the presence of small domains. Here we introduce a multimodal approach for
    determining magnetic structures, which combines symmetry-sensitive optical probes,
    scattering, and group-theoretical analysis. We apply it to EuIn2⁢As2, a material
    that has received attention as a candidate axion insulator. While first-principles
    calculations predict this state on the assumption of a simple collinear antiferromagnetic
    structure, subsequent neutron-scattering measurements reveal a much more intricate
    magnetic ground state characterized by two coexisting magnetic wave vectors reached
    by successive thermal phase transitions. The proposed high- and low-temperature
    phases are a spin helix and a state with interpenetrating helical and Néel antiferromagnetic
    order termed a “broken helix,” respectively. Employing a multimodal approach,
    we identify the magnetic structure associated with these two phases of EuIn2⁢As2.
    We find that the higher-temperature phase is characterized by a variation of the
    magnetic moment amplitude from layer to layer, with the moment vanishing entirely
    in every third Eu layer. The lower-temperature structure is similar to the broken
    helix, with one important difference: Because of local strain, the relative orientation
    of the magnetic structure and the lattice is not fixed. Consequently, the symmetry
    required to protect the axion phase is not generically protected in EuIn2⁢As2,
    but we show that it can be restored if the magnetic structure is tuned with uniaxial
    strain. Finally, we present a spin Hamiltonian that identifies the spin interactions
    that account for the complex magnetic order in EuIn2⁢As2. Our work highlights
    the importance of a multimodal approach in determining the symmetry of complex
    order parameters.'
article_number: '031013'
article_processing_charge: No
article_type: original
author:
- first_name: E.
  full_name: Donoway, E.
  last_name: Donoway
- first_name: T. V.
  full_name: Trevisan, T. V.
  last_name: Trevisan
- first_name: A.
  full_name: Liebman-Peláez, A.
  last_name: Liebman-Peláez
- first_name: R. P.
  full_name: Day, R. P.
  last_name: Day
- first_name: K.
  full_name: Yamakawa, K.
  last_name: Yamakawa
- first_name: Y.
  full_name: Sun, Y.
  last_name: Sun
- first_name: J. R.
  full_name: Soh, J. R.
  last_name: Soh
- first_name: D.
  full_name: Prabhakaran, D.
  last_name: Prabhakaran
- first_name: A. T.
  full_name: Boothroyd, A. T.
  last_name: Boothroyd
- first_name: R. M.
  full_name: Fernandes, R. M.
  last_name: Fernandes
- first_name: J. G.
  full_name: Analytis, J. G.
  last_name: Analytis
- first_name: J. E.
  full_name: Moore, J. E.
  last_name: Moore
- first_name: J.
  full_name: Orenstein, J.
  last_name: Orenstein
- first_name: Veronika
  full_name: Sunko, Veronika
  id: 23cb1cf6-2c7a-11ef-91a4-f72fc19f20b3
  last_name: Sunko
  orcid: 0000-0003-2724-3523
citation:
  ama: Donoway E, Trevisan TV, Liebman-Peláez A, et al. Multimodal approach reveals
    the symmetry-breaking pathway to the broken helix in EuIn2As2. <i>Physical Review
    X</i>. 2024;14(3). doi:<a href="https://doi.org/10.1103/physrevx.14.031013">10.1103/physrevx.14.031013</a>
  apa: Donoway, E., Trevisan, T. V., Liebman-Peláez, A., Day, R. P., Yamakawa, K.,
    Sun, Y., … Sunko, V. (2024). Multimodal approach reveals the symmetry-breaking
    pathway to the broken helix in EuIn2As2. <i>Physical Review X</i>. American Physical
    Society. <a href="https://doi.org/10.1103/physrevx.14.031013">https://doi.org/10.1103/physrevx.14.031013</a>
  chicago: Donoway, E., T. V. Trevisan, A. Liebman-Peláez, R. P. Day, K. Yamakawa,
    Y. Sun, J. R. Soh, et al. “Multimodal Approach Reveals the Symmetry-Breaking Pathway
    to the Broken Helix in EuIn2As2.” <i>Physical Review X</i>. American Physical
    Society, 2024. <a href="https://doi.org/10.1103/physrevx.14.031013">https://doi.org/10.1103/physrevx.14.031013</a>.
  ieee: E. Donoway <i>et al.</i>, “Multimodal approach reveals the symmetry-breaking
    pathway to the broken helix in EuIn2As2,” <i>Physical Review X</i>, vol. 14, no.
    3. American Physical Society, 2024.
  ista: Donoway E, Trevisan TV, Liebman-Peláez A, Day RP, Yamakawa K, Sun Y, Soh JR,
    Prabhakaran D, Boothroyd AT, Fernandes RM, Analytis JG, Moore JE, Orenstein J,
    Sunko V. 2024. Multimodal approach reveals the symmetry-breaking pathway to the
    broken helix in EuIn2As2. Physical Review X. 14(3), 031013.
  mla: Donoway, E., et al. “Multimodal Approach Reveals the Symmetry-Breaking Pathway
    to the Broken Helix in EuIn2As2.” <i>Physical Review X</i>, vol. 14, no. 3, 031013,
    American Physical Society, 2024, doi:<a href="https://doi.org/10.1103/physrevx.14.031013">10.1103/physrevx.14.031013</a>.
  short: E. Donoway, T.V. Trevisan, A. Liebman-Peláez, R.P. Day, K. Yamakawa, Y. Sun,
    J.R. Soh, D. Prabhakaran, A.T. Boothroyd, R.M. Fernandes, J.G. Analytis, J.E.
    Moore, J. Orenstein, V. Sunko, Physical Review X 14 (2024).
date_created: 2025-06-10T09:17:30Z
date_published: 2024-07-22T00:00:00Z
date_updated: 2025-06-10T13:14:20Z
day: '22'
doi: 10.1103/physrevx.14.031013
extern: '1'
fulldoi: https://doi.org/10.1103/physrevx.14.031013
intvolume: '        14'
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1103/physrevx.14.031013
month: '07'
oa: 1
oa_version: Published Version
publication: Physical Review X
publication_identifier:
  eissn:
  - 2160-3308
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Multimodal approach reveals the symmetry-breaking pathway to the broken helix
  in EuIn2As2
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 14
year: '2024'
...
---
OA_place: repository
_id: '19884'
abstract:
- lang: eng
  text: "This is Marlin, a Mixed Auto-Regressive Linear kernel (and the name of one
    of the planet's fastest fish), an extremely optimized FP16xINT4 matmul kernel
    aimed at LLM inference that can deliver close to ideal (4x) speedups up to batchsizes
    of 16-32 tokens (in contrast to the 1-2 tokens of prior work with comparable speedup).\r\n\r\nAdditionally,
    it includes Sparse-Marlin, an extension of the MARLIN kernels adding support to
    2:4 weight sparsity, achieving 5.3x speedups on NVIDIA GPUs (Ampere/Ada)."
article_processing_charge: No
author:
- first_name: Elias
  full_name: Frantar, Elias
  id: 09a8f98d-ec99-11ea-ae11-c063a7b7fe5f
  last_name: Frantar
- first_name: Roberto
  full_name: Castro, Roberto
  last_name: Castro
- first_name: Jiale
  full_name: Chen, Jiale
  id: 4d0a9064-1ff6-11ee-9fa6-ec046c604785
  last_name: Chen
  orcid: 0000-0001-5337-5875
- first_name: Torsten
  full_name: Hoefler, Torsten
  last_name: Hoefler
- first_name: Dan-Adrian
  full_name: Alistarh, Dan-Adrian
  id: 4A899BFC-F248-11E8-B48F-1D18A9856A87
  last_name: Alistarh
  orcid: 0000-0003-3650-940X
citation:
  ama: 'Frantar E, Castro R, Chen J, Hoefler T, Alistarh D-A. MARLIN: Mixed-precision
    auto-regressive parallel inference on Large Language Models. 2024. doi:<a href="https://doi.org/10.5281/ZENODO.14213091">10.5281/ZENODO.14213091</a>'
  apa: 'Frantar, E., Castro, R., Chen, J., Hoefler, T., &#38; Alistarh, D.-A. (2024).
    MARLIN: Mixed-precision auto-regressive parallel inference on Large Language Models.
    Zenodo. <a href="https://doi.org/10.5281/ZENODO.14213091">https://doi.org/10.5281/ZENODO.14213091</a>'
  chicago: 'Frantar, Elias, Roberto Castro, Jiale Chen, Torsten Hoefler, and Dan-Adrian
    Alistarh. “MARLIN: Mixed-Precision Auto-Regressive Parallel Inference on Large
    Language Models.” Zenodo, 2024. <a href="https://doi.org/10.5281/ZENODO.14213091">https://doi.org/10.5281/ZENODO.14213091</a>.'
  ieee: 'E. Frantar, R. Castro, J. Chen, T. Hoefler, and D.-A. Alistarh, “MARLIN:
    Mixed-precision auto-regressive parallel inference on Large Language Models.”
    Zenodo, 2024.'
  ista: 'Frantar E, Castro R, Chen J, Hoefler T, Alistarh D-A. 2024. MARLIN: Mixed-precision
    auto-regressive parallel inference on Large Language Models, Zenodo, <a href="https://doi.org/10.5281/ZENODO.14213091">10.5281/ZENODO.14213091</a>.'
  mla: 'Frantar, Elias, et al. <i>MARLIN: Mixed-Precision Auto-Regressive Parallel
    Inference on Large Language Models</i>. Zenodo, 2024, doi:<a href="https://doi.org/10.5281/ZENODO.14213091">10.5281/ZENODO.14213091</a>.'
  short: E. Frantar, R. Castro, J. Chen, T. Hoefler, D.-A. Alistarh, (2024).
corr_author: '1'
date_created: 2025-06-24T06:09:18Z
date_published: 2024-11-24T00:00:00Z
date_updated: 2025-09-30T13:41:56Z
day: '24'
ddc:
- '000'
department:
- _id: DaAl
doi: 10.5281/ZENODO.14213091
fulldoi: https://doi.org/10.5281/ZENODO.14213091
has_accepted_license: '1'
main_file_link:
- open_access: '1'
  url: https://doi.org/10.5281/ZENODO.14213091
month: '11'
oa: 1
oa_version: Published Version
publisher: Zenodo
related_material:
  record:
  - id: '19877'
    relation: used_for_analysis_in
    status: public
status: public
title: 'MARLIN: Mixed-precision auto-regressive parallel inference on Large Language
  Models'
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: research_data_reference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2024'
...
---
OA_place: publisher
OA_type: free access
_id: '20057'
abstract:
- lang: eng
  text: In article number 2305128, Qing Sun, Shang Wang, Yanhong Tian, Andreu Cabot,
    and co-workers report an investigation of the energy-storage mechanism of a layered
    Bi2Te3-based cathode for aqueous zinc-ion batteries (ZIBs). They demonstrate that
    the zinc ion is not inserted into the cathode as previously assumed; in contrast,
    proton charge-storage dominates the process. They also demonstrate the great application
    prospects of aqueous ZIBs in flexible electronics via jet printing technology.
article_number: '2470004'
article_processing_charge: No
author:
- first_name: Guifang
  full_name: Zeng, Guifang
  last_name: Zeng
- first_name: Qing
  full_name: Sun, Qing
  last_name: Sun
- first_name: Sharona
  full_name: Horta, Sharona
  id: 03a7e858-01b1-11ec-8b71-99ae6c4a05bc
  last_name: Horta
- first_name: Shang
  full_name: Wang, Shang
  last_name: Wang
- first_name: Xuan
  full_name: Lu, Xuan
  last_name: Lu
- first_name: Chao Yue
  full_name: Zhang, Chao Yue
  last_name: Zhang
- first_name: Jing
  full_name: Li, Jing
  last_name: Li
- first_name: Junshan
  full_name: Li, Junshan
  last_name: Li
- first_name: Lijie
  full_name: Ci, Lijie
  last_name: Ci
- first_name: Yanhong
  full_name: Tian, Yanhong
  last_name: Tian
- first_name: Maria
  full_name: Ibáñez, Maria
  id: 43C61214-F248-11E8-B48F-1D18A9856A87
  last_name: Ibáñez
  orcid: 0000-0001-5013-2843
- first_name: Andreu
  full_name: Cabot, Andreu
  last_name: Cabot
citation:
  ama: 'Zeng G, Sun Q, Horta S, et al. <i>A Layered Bi2Te3@PPy Cathode for Aqueous
    Zinc‐Ion Batteries: Mechanism and Application in Printed Flexible Batteries</i>.
    Vol 36. Wiley; 2024. doi:<a href="https://doi.org/10.1002/adma.202470004">10.1002/adma.202470004</a>'
  apa: 'Zeng, G., Sun, Q., Horta, S., Wang, S., Lu, X., Zhang, C. Y., … Cabot, A.
    (2024). <i>A layered Bi2Te3@PPy cathode for aqueous Zinc‐Ion batteries: Mechanism
    and application in printed flexible batteries</i>. <i>Advanced Materials</i> (Vol.
    36). Wiley. <a href="https://doi.org/10.1002/adma.202470004">https://doi.org/10.1002/adma.202470004</a>'
  chicago: 'Zeng, Guifang, Qing Sun, Sharona Horta, Shang Wang, Xuan Lu, Chao Yue
    Zhang, Jing Li, et al. <i>A Layered Bi2Te3@PPy Cathode for Aqueous Zinc‐Ion Batteries:
    Mechanism and Application in Printed Flexible Batteries</i>. <i>Advanced Materials</i>.
    Vol. 36. Wiley, 2024. <a href="https://doi.org/10.1002/adma.202470004">https://doi.org/10.1002/adma.202470004</a>.'
  ieee: 'G. Zeng <i>et al.</i>, <i>A layered Bi2Te3@PPy cathode for aqueous Zinc‐Ion
    batteries: Mechanism and application in printed flexible batteries</i>, vol. 36,
    no. 1. Wiley, 2024.'
  ista: 'Zeng G, Sun Q, Horta S, Wang S, Lu X, Zhang CY, Li J, Li J, Ci L, Tian Y,
    Ibáñez M, Cabot A. 2024. A layered Bi2Te3@PPy cathode for aqueous Zinc‐Ion batteries:
    Mechanism and application in printed flexible batteries, Wiley,p.'
  mla: 'Zeng, Guifang, et al. “A Layered Bi2Te3@PPy Cathode for Aqueous Zinc‐Ion Batteries:
    Mechanism and Application in Printed Flexible Batteries.” <i>Advanced Materials</i>,
    vol. 36, no. 1, 2470004, Wiley, 2024, doi:<a href="https://doi.org/10.1002/adma.202470004">10.1002/adma.202470004</a>.'
  short: 'G. Zeng, Q. Sun, S. Horta, S. Wang, X. Lu, C.Y. Zhang, J. Li, J. Li, L.
    Ci, Y. Tian, M. Ibáñez, A. Cabot, A Layered Bi2Te3@PPy Cathode for Aqueous Zinc‐Ion
    Batteries: Mechanism and Application in Printed Flexible Batteries, Wiley, 2024.'
date_created: 2025-07-21T08:53:06Z
date_published: 2024-01-04T00:00:00Z
date_updated: 2026-06-18T18:19:28Z
day: '04'
ddc:
- '530'
department:
- _id: MaIb
doi: 10.1002/adma.202470004
fulldoi: https://doi.org/10.1002/adma.202470004
intvolume: '        36'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1002/adma.202470004
month: '01'
oa: 1
oa_version: Published Version
publication: Advanced Materials
publication_identifier:
  eissn:
  - 1521-4095
  issn:
  - 0935-9648
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: 'A layered Bi2Te3@PPy cathode for aqueous Zinc‐Ion batteries: Mechanism and
  application in printed flexible batteries'
type: other_academic_publication
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 36
year: '2024'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
PlanS_conform: '1'
_id: '20060'
abstract:
- lang: spa
  text: "Un fenómeno a menudo asociado con el autismo es un modo atípico de función
    ejecutiva, cuyas manifestaciones incluyen dificultad para iniciar tareas. En algunos
    casos, esto va acompañado de sentimientos de inercia y sensaciones que pueden
    describirse como inquietud y parálisis simultáneas. En consecuencia, la dificultad
    para iniciar las tareas puede dar lugar a la procrastinación, ya sea simplemente
    posponiendo el trabajo en la tarea objetivo o realizando otras tareas no relacionadas
    antes de dedicarse a la tarea objetivo. Curiosamente, sin embargo, también está
    documentado que, una vez iniciada una tarea, los autistas pueden centrarse en
    ella intensamente y durante periodos prolongados de tiempo, especialmente cuando
    les resulta interesante.&#x0D;\r\nEste trabajo utiliza el procesamiento predictivo
    y la inferencia activa para modelar la relación entre la función ejecutiva, la
    procrastinación y la hiperfocalización en el autismo. Este modelo integra las
    causas conocidas y propuestas de los déficits en la función ejecutiva y el papel
    que desempeña el interés en la regulación de la atención y la motivación. El modelo
    propone que la procrastinación es el resultado de procesos diferenciales de minimización
    de errores de predicción, como la ponderación de estímulos sensoriales. Se discuten
    los vínculos con modelos propuestos previamente, como la coherencia central débil
    (CCC), y la teoría de los priores altos e inflexibles de los errores de predicción
    en el autismo (HIPPEA)."
- lang: eng
  text: A  phenomenon  often  associated  with  autism  is  an  atypical  mode  of  executive  function,
    manifestations  of  which  include  difficulty  in  initiating  tasks.  In  some  cases,  this
    is accompanied  by  feelings  of  inertia  and  sensations  that  can  be  described  as  simultaneous
    restlessness  and  paralysis.  Consequently,  difficulty  in  getting  started  on  tasks  can  result  in
    procrastination,  either  by  simply  postponing  working  on  the  target  task  or  by  performing
    other  unrelated  tasks  before  engaging  in  the  target  task.  Interestingly,  however,  it  is  also
    documented  that  once  a  task  has  been  started,  autistic  persons  may  focus  on  it  intensely
    and for prolonged periods of time, especially when it is interesting to them.This  paper  uses  predictive  processing  and  active  inference  to  model  therelationship
    between  executive   function,   procrastination,  and   hyperfocus   in  autism.   This   model
    integrates  the  known  and  proposed  causes  of  deficits  in  executive  function  and  the  role
    played  by  interest  in  attention  regulation  and  motivation.  The  model  proposes  that
    procrastination  is  the  outcome  of  differential  prediction-error  minimizing  processes,  such
    as weighting of sensory stimuli. Links to previously proposed models such as weak
    central coherence  (WCC),  and  the  theory  of  high,  inflexible  priors  of  prediction  errors  in  autism
    (HIPPEA) are discussed
acknowledgement: Sidney Carls-Diamante was supported by the Federal Ministry of Education
  and Research (BMBF) and the Baden-Württemberg Ministry of Science as part of the
  Excellence Strategy of the German Federal and State Governments. Alice Laciny was
  supported by the 2021 UNESCO L’Oréal grant for women in science, awarded for the
  project “Neurodiversity and anthropomorphism in social insect research”.
article_processing_charge: Yes
article_type: original
author:
- first_name: Sidney
  full_name: Carls-Diamante, Sidney
  last_name: Carls-Diamante
- first_name: Alice
  full_name: Laciny, Alice
  id: accace3f-3f77-11eb-b1df-f1221b04cb95
  last_name: Laciny
  orcid: 0000-0002-5485-1391
citation:
  ama: 'Carls-Diamante S, Laciny A. Stuck in uncertainty: A predictive processing/
    active inference account of procrastination-like behaviour in autism. <i>Lógoi
    Revista de Filosofía</i>. 2024;(45):88-114. doi:<a href="https://doi.org/10.62876/lr.vi45.6481">10.62876/lr.vi45.6481</a>'
  apa: 'Carls-Diamante, S., &#38; Laciny, A. (2024). Stuck in uncertainty: A predictive
    processing/ active inference account of procrastination-like behaviour in autism.
    <i>Lógoi. Revista de Filosofía</i>. Universidad Católica Andrés Bello. <a href="https://doi.org/10.62876/lr.vi45.6481">https://doi.org/10.62876/lr.vi45.6481</a>'
  chicago: 'Carls-Diamante, Sidney, and Alice Laciny. “Stuck in Uncertainty: A Predictive
    Processing/ Active Inference Account of Procrastination-like Behaviour in Autism.”
    <i>Lógoi. Revista de Filosofía</i>. Universidad Católica Andrés Bello, 2024. <a
    href="https://doi.org/10.62876/lr.vi45.6481">https://doi.org/10.62876/lr.vi45.6481</a>.'
  ieee: 'S. Carls-Diamante and A. Laciny, “Stuck in uncertainty: A predictive processing/
    active inference account of procrastination-like behaviour in autism,” <i>Lógoi.
    Revista de Filosofía</i>, no. 45. Universidad Católica Andrés Bello, pp. 88–114,
    2024.'
  ista: 'Carls-Diamante S, Laciny A. 2024. Stuck in uncertainty: A predictive processing/
    active inference account of procrastination-like behaviour in autism. Lógoi. Revista
    de Filosofía. (45), 88–114.'
  mla: 'Carls-Diamante, Sidney, and Alice Laciny. “Stuck in Uncertainty: A Predictive
    Processing/ Active Inference Account of Procrastination-like Behaviour in Autism.”
    <i>Lógoi. Revista de Filosofía</i>, no. 45, Universidad Católica Andrés Bello,
    2024, pp. 88–114, doi:<a href="https://doi.org/10.62876/lr.vi45.6481">10.62876/lr.vi45.6481</a>.'
  short: S. Carls-Diamante, A. Laciny, Lógoi. Revista de Filosofía (2024) 88–114.
corr_author: '1'
date_created: 2025-07-21T10:35:39Z
date_published: 2024-03-19T00:00:00Z
date_updated: 2025-09-09T08:51:00Z
day: '19'
ddc:
- '570'
doi: 10.62876/lr.vi45.6481
file:
- access_level: open_access
  checksum: 04c950f26ad68455c3a303c87ccf2349
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  creator: dernst
  date_created: 2025-09-09T08:48:53Z
  date_updated: 2025-09-09T08:48:53Z
  file_id: '20317'
  file_name: 2025_Logoi_CarlsDiamante.pdf
  file_size: 354124
  relation: main_file
  success: 1
file_date_updated: 2025-09-09T08:48:53Z
fulldoi: https://doi.org/10.62876/lr.vi45.6481
has_accepted_license: '1'
issue: '45'
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc-sa/4.0/
month: '03'
oa: 1
oa_version: Published Version
page: 88-114
publication: Lógoi. Revista de Filosofía
publication_identifier:
  eissn:
  - 1316-693X
  issn:
  - 2790-5144
publication_status: published
publisher: Universidad Católica Andrés Bello
quality_controlled: '1'
status: public
title: 'Stuck in uncertainty: A predictive processing/ active inference account of
  procrastination-like behaviour in autism'
tmp:
  image: /images/cc_by_nc_sa.png
  legal_code_url: https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode
  name: Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC
    BY-NC-SA 4.0)
  short: CC BY-NC-SA (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2024'
...
---
_id: '20121'
abstract:
- lang: eng
  text: PyDaddy is an open source package which is a key contribution of the manuscript
    Nabeel et al, arXiv:2205.02645. The basic scientific premise for this package
    is to discover the nature of stochasticity in ecological time series datasets.
    It is well known that the stochasticity can affect the dynamics of ecological
    systems in counter-intuitive ways. Without understanding the equations (typically,
    in the form of stochastic differential equations or SDEs, in short) that govern
    the dynamics of populations or ecosystems, it's challenging to determine the impact
    of randomness on real datasets. In this manuscript and accompanying package, we
    introduce a methodology for discovering equations (SDEs) that transforms time
    series data of state variables into stochastic differential equations. This approach
    merges traditional stochastic calculus with modern equation-discovery techniques.
    We showcase the generality of our method through various applications and discuss
    its limitations and potential pitfalls, offering diagnostic measures to address
    these challenges.
acknowledgement: This study was partially funded by Science and Engineering Research
  Board, Department of Science and Technology, Government of India to Vishwesha Guttal.
article_processing_charge: No
author:
- first_name: Arshed
  full_name: Nabeel, Arshed
  last_name: Nabeel
- first_name: Ashwin
  full_name: Karichannavar, Ashwin
  last_name: Karichannavar
- first_name: Shuaib
  full_name: Palathingal, Shuaib
  last_name: Palathingal
- first_name: Jitesh
  full_name: Jhawar, Jitesh
  last_name: Jhawar
- first_name: David
  full_name: Brückner, David
  id: e1e86031-6537-11eb-953a-f7ab92be508d
  last_name: Brückner
  orcid: 0000-0001-7205-2975
- first_name: Masila
  full_name: Danny Raj, Masila
  last_name: Danny Raj
- first_name: Vishwesha
  full_name: Guttal, Vishwesha
  last_name: Guttal
citation:
  ama: 'Nabeel A, Karichannavar A, Palathingal S, et al. PyDaddy: A Python Package
    for Discovering SDEs from Time Series Data. 2024. doi:<a href="https://doi.org/10.5281/ZENODO.7137151">10.5281/ZENODO.7137151</a>'
  apa: 'Nabeel, A., Karichannavar, A., Palathingal, S., Jhawar, J., Brückner, D.,
    Danny Raj, M., &#38; Guttal, V. (2024). PyDaddy: A Python Package for Discovering
    SDEs from Time Series Data. Zenodo. <a href="https://doi.org/10.5281/ZENODO.7137151">https://doi.org/10.5281/ZENODO.7137151</a>'
  chicago: 'Nabeel, Arshed, Ashwin Karichannavar, Shuaib Palathingal, Jitesh Jhawar,
    David Brückner, Masila Danny Raj, and Vishwesha Guttal. “PyDaddy: A Python Package
    for Discovering SDEs from Time Series Data.” Zenodo, 2024. <a href="https://doi.org/10.5281/ZENODO.7137151">https://doi.org/10.5281/ZENODO.7137151</a>.'
  ieee: 'A. Nabeel <i>et al.</i>, “PyDaddy: A Python Package for Discovering SDEs
    from Time Series Data.” Zenodo, 2024.'
  ista: 'Nabeel A, Karichannavar A, Palathingal S, Jhawar J, Brückner D, Danny Raj
    M, Guttal V. 2024. PyDaddy: A Python Package for Discovering SDEs from Time Series
    Data, Zenodo, <a href="https://doi.org/10.5281/ZENODO.7137151">10.5281/ZENODO.7137151</a>.'
  mla: 'Nabeel, Arshed, et al. <i>PyDaddy: A Python Package for Discovering SDEs from
    Time Series Data</i>. Zenodo, 2024, doi:<a href="https://doi.org/10.5281/ZENODO.7137151">10.5281/ZENODO.7137151</a>.'
  short: A. Nabeel, A. Karichannavar, S. Palathingal, J. Jhawar, D. Brückner, M. Danny
    Raj, V. Guttal, (2024).
date_created: 2025-08-05T06:49:59Z
date_published: 2024-09-18T00:00:00Z
date_updated: 2025-09-30T14:14:42Z
day: '18'
ddc:
- '570'
department:
- _id: EdHa
doi: 10.5281/ZENODO.7137151
fulldoi: https://doi.org/10.5281/ZENODO.7137151
has_accepted_license: '1'
main_file_link:
- open_access: '1'
  url: https://doi.org/10.5281/zenodo.7137151
month: '09'
oa: 1
oa_version: Published Version
publisher: Zenodo
related_material:
  record:
  - id: '20056'
    relation: used_for_analysis_in
    status: public
status: public
title: 'PyDaddy: A Python Package for Discovering SDEs from Time Series Data'
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: research_data_reference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2024'
...
---
OA_place: repository
OA_type: green
_id: '20756'
abstract:
- lang: eng
  text: Biocatalysis has the potential to address the need for more sustainable organic
    synthesis routes. Protein engineering can tune enzymes to perform in cascade reactions
    and for efficient synthesis of enantiomerically enriched compounds, using both
    natural and new-to-nature reaction pathways. This review highlights recent achievements
    in biocatalysis, especially the development of novel enzymatic syntheses to access
    versatile small molecule intermediates and complex biomolecules. Biocatalytic
    strategies for the degradation of persistent pollutants and approaches for biomass
    valorization are also discussed. The transition of chemical synthesis to a greener
    future will be accelerated by implementing enzymes and engineering them for high
    performance and new activities.
article_number: '102536'
article_processing_charge: No
article_type: original
author:
- first_name: Julia
  full_name: Reisenbauer, Julia
  id: 51d862e9-36ee-11f0-86d3-8534c85a5496
  last_name: Reisenbauer
- first_name: Kathleen M.
  full_name: Sicinski, Kathleen M.
  last_name: Sicinski
- first_name: Frances H.
  full_name: Arnold, Frances H.
  last_name: Arnold
citation:
  ama: 'Reisenbauer J, Sicinski KM, Arnold FH. Catalyzing the future: Recent advances
    in chemical synthesis using enzymes. <i>Current Opinion in Chemical Biology</i>.
    2024;83. doi:<a href="https://doi.org/10.1016/j.cbpa.2024.102536">10.1016/j.cbpa.2024.102536</a>'
  apa: 'Reisenbauer, J., Sicinski, K. M., &#38; Arnold, F. H. (2024). Catalyzing the
    future: Recent advances in chemical synthesis using enzymes. <i>Current Opinion
    in Chemical Biology</i>. Elsevier. <a href="https://doi.org/10.1016/j.cbpa.2024.102536">https://doi.org/10.1016/j.cbpa.2024.102536</a>'
  chicago: 'Reisenbauer, Julia, Kathleen M. Sicinski, and Frances H. Arnold. “Catalyzing
    the Future: Recent Advances in Chemical Synthesis Using Enzymes.” <i>Current Opinion
    in Chemical Biology</i>. Elsevier, 2024. <a href="https://doi.org/10.1016/j.cbpa.2024.102536">https://doi.org/10.1016/j.cbpa.2024.102536</a>.'
  ieee: 'J. Reisenbauer, K. M. Sicinski, and F. H. Arnold, “Catalyzing the future:
    Recent advances in chemical synthesis using enzymes,” <i>Current Opinion in Chemical
    Biology</i>, vol. 83. Elsevier, 2024.'
  ista: 'Reisenbauer J, Sicinski KM, Arnold FH. 2024. Catalyzing the future: Recent
    advances in chemical synthesis using enzymes. Current Opinion in Chemical Biology.
    83, 102536.'
  mla: 'Reisenbauer, Julia, et al. “Catalyzing the Future: Recent Advances in Chemical
    Synthesis Using Enzymes.” <i>Current Opinion in Chemical Biology</i>, vol. 83,
    102536, Elsevier, 2024, doi:<a href="https://doi.org/10.1016/j.cbpa.2024.102536">10.1016/j.cbpa.2024.102536</a>.'
  short: J. Reisenbauer, K.M. Sicinski, F.H. Arnold, Current Opinion in Chemical Biology
    83 (2024).
date_created: 2025-12-09T14:22:40Z
date_published: 2024-12-01T00:00:00Z
date_updated: 2025-12-16T13:03:48Z
day: '01'
doi: 10.1016/j.cbpa.2024.102536
extern: '1'
external_id:
  pmid:
  - '39369557'
fulldoi: https://doi.org/10.1016/j.cbpa.2024.102536
intvolume: '        83'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://europepmc.org/article/med/39369557#free-full-text
month: '12'
oa: 1
oa_version: Submitted Version
pmid: 1
publication: Current Opinion in Chemical Biology
publication_identifier:
  eissn:
  - 1879-0402
  issn:
  - 1367-5931
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Catalyzing the future: Recent advances in chemical synthesis using enzymes'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 83
year: '2024'
...
---
OA_place: publisher
OA_type: hybrid
_id: '20757'
abstract:
- lang: eng
  text: We report the utilisation of an iodine(III) reagent to access α,β-unsaturated
    carbonyls from the corresponding silyl enol ethers and enol phosphates. The transformation
    can also be carried out in one pot, directly dehydrogenating carbonyls.
article_processing_charge: No
article_type: original
author:
- first_name: Bence B.
  full_name: Botlik, Bence B.
  last_name: Botlik
- first_name: Patrick
  full_name: Finkelstein, Patrick
  last_name: Finkelstein
- first_name: Ann-Sophie K.
  full_name: Paschke, Ann-Sophie K.
  last_name: Paschke
- first_name: Julia
  full_name: Reisenbauer, Julia
  id: 51d862e9-36ee-11f0-86d3-8534c85a5496
  last_name: Reisenbauer
- first_name: Bill
  full_name: Morandi, Bill
  last_name: Morandi
citation:
  ama: Botlik BB, Finkelstein P, Paschke A-SK, Reisenbauer J, Morandi B. Versatile
    dehydrogenation of carbonyls enabled by an iodine(III) reagent. <i>Chemical Communications</i>.
    2024;60(69):9254-9257. doi:<a href="https://doi.org/10.1039/d4cc02609h">10.1039/d4cc02609h</a>
  apa: Botlik, B. B., Finkelstein, P., Paschke, A.-S. K., Reisenbauer, J., &#38; Morandi,
    B. (2024). Versatile dehydrogenation of carbonyls enabled by an iodine(III) reagent.
    <i>Chemical Communications</i>. Royal Society of Chemistry. <a href="https://doi.org/10.1039/d4cc02609h">https://doi.org/10.1039/d4cc02609h</a>
  chicago: Botlik, Bence B., Patrick Finkelstein, Ann-Sophie K. Paschke, Julia Reisenbauer,
    and Bill Morandi. “Versatile Dehydrogenation of Carbonyls Enabled by an Iodine(III)
    Reagent.” <i>Chemical Communications</i>. Royal Society of Chemistry, 2024. <a
    href="https://doi.org/10.1039/d4cc02609h">https://doi.org/10.1039/d4cc02609h</a>.
  ieee: B. B. Botlik, P. Finkelstein, A.-S. K. Paschke, J. Reisenbauer, and B. Morandi,
    “Versatile dehydrogenation of carbonyls enabled by an iodine(III) reagent,” <i>Chemical
    Communications</i>, vol. 60, no. 69. Royal Society of Chemistry, pp. 9254–9257,
    2024.
  ista: Botlik BB, Finkelstein P, Paschke A-SK, Reisenbauer J, Morandi B. 2024. Versatile
    dehydrogenation of carbonyls enabled by an iodine(III) reagent. Chemical Communications.
    60(69), 9254–9257.
  mla: Botlik, Bence B., et al. “Versatile Dehydrogenation of Carbonyls Enabled by
    an Iodine(III) Reagent.” <i>Chemical Communications</i>, vol. 60, no. 69, Royal
    Society of Chemistry, 2024, pp. 9254–57, doi:<a href="https://doi.org/10.1039/d4cc02609h">10.1039/d4cc02609h</a>.
  short: B.B. Botlik, P. Finkelstein, A.-S.K. Paschke, J. Reisenbauer, B. Morandi,
    Chemical Communications 60 (2024) 9254–9257.
date_created: 2025-12-09T14:23:00Z
date_published: 2024-08-02T00:00:00Z
date_updated: 2025-12-16T11:19:43Z
day: '02'
doi: 10.1039/d4cc02609h
extern: '1'
external_id:
  pmid:
  - '39118590'
fulldoi: https://doi.org/10.1039/d4cc02609h
has_accepted_license: '1'
intvolume: '        60'
issue: '69'
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc/3.0/
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1039/D4CC02609H
month: '08'
oa: 1
oa_version: Published Version
page: 9254-9257
pmid: 1
publication: Chemical Communications
publication_identifier:
  eissn:
  - 1364-548X
  issn:
  - 1359-7345
publication_status: published
publisher: Royal Society of Chemistry
quality_controlled: '1'
scopus_import: '1'
status: public
title: Versatile dehydrogenation of carbonyls enabled by an iodine(III) reagent
tmp:
  image: /images/cc_by_nc.png
  legal_code_url: https://creativecommons.org/licenses/by-nc/3.0/legalcode
  name: Creative Commons Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0)
  short: CC BY-NC (3.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 60
year: '2024'
...
---
OA_place: publisher
OA_type: hybrid
_id: '20807'
abstract:
- lang: eng
  text: Human glutamate carboxypeptidase 2 (GCP2) from the M28B metalloprotease group
    is an important target for therapy in neurological disorders and an established
    tumor marker. However, its physiological functions remain unclear. To better understand
    general roles, we used the model organism Caenorhabditis elegans to genetically
    manipulate its three existing orthologous genes and evaluate the impact on worm
    physiology. The results of gene knockout studies showed that C. elegans GCP2 orthologs
    affect the pharyngeal physiology, reproduction, and structural integrity of the
    organism. Promoter-driven GFP expression revealed distinct localization for each
    of the three gene paralogs, with gcp-2.1 being most abundant in muscles, intestine,
    and pharyngeal interneurons, gcp-2.2 restricted to the phasmid neurons, and gcp-2.3
    located in the excretory cell. The present study provides new insight into the
    unique phenotypic effects of GCP2 gene knockouts in C. elegans, and the specific
    tissue localizations. We believe that elucidation of particular roles in a non-mammalian
    organism can help to explain important questions linked to physiology of this
    protease group and in extension to human GCP2 involvement in pathophysiological
    processes.
article_number: BSR20230502
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Lucie
  full_name: Panska, Lucie
  last_name: Panska
- first_name: Stepanka
  full_name: Nedvedova, Stepanka
  last_name: Nedvedova
- first_name: Vojtech
  full_name: Vacek, Vojtech
  last_name: Vacek
- first_name: Daniela
  full_name: Krivska, Daniela
  last_name: Krivska
- first_name: Lukas
  full_name: Konecny, Lukas
  last_name: Konecny
- first_name: Filip
  full_name: Knop, Filip
  id: 25f3131f-6e7c-11ef-8296-b64ccd4a1b69
  last_name: Knop
  orcid: 0000-0002-3845-3465
- first_name: Zsofia
  full_name: Kutil, Zsofia
  last_name: Kutil
- first_name: Lubica
  full_name: Skultetyova, Lubica
  last_name: Skultetyova
- first_name: Adrian
  full_name: Leontovyc, Adrian
  last_name: Leontovyc
- first_name: Lenka
  full_name: Ulrychova, Lenka
  last_name: Ulrychova
- first_name: Judy
  full_name: Sakanari, Judy
  last_name: Sakanari
- first_name: Masako
  full_name: Asahina, Masako
  last_name: Asahina
- first_name: Cyril
  full_name: Barinka, Cyril
  last_name: Barinka
- first_name: Marie
  full_name: Macurkova, Marie
  last_name: Macurkova
- first_name: Jan
  full_name: Dvorak, Jan
  last_name: Dvorak
citation:
  ama: Panska L, Nedvedova S, Vacek V, et al. Uncovering the essential roles of glutamate
    carboxypeptidase 2 orthologs in Caenorhabditis elegans. <i>Bioscience Reports</i>.
    2024;44(1). doi:<a href="https://doi.org/10.1042/bsr20230502">10.1042/bsr20230502</a>
  apa: Panska, L., Nedvedova, S., Vacek, V., Krivska, D., Konecny, L., Knop, F., …
    Dvorak, J. (2024). Uncovering the essential roles of glutamate carboxypeptidase
    2 orthologs in Caenorhabditis elegans. <i>Bioscience Reports</i>. Portland Press.
    <a href="https://doi.org/10.1042/bsr20230502">https://doi.org/10.1042/bsr20230502</a>
  chicago: Panska, Lucie, Stepanka Nedvedova, Vojtech Vacek, Daniela Krivska, Lukas
    Konecny, Filip Knop, Zsofia Kutil, et al. “Uncovering the Essential Roles of Glutamate
    Carboxypeptidase 2 Orthologs in Caenorhabditis Elegans.” <i>Bioscience Reports</i>.
    Portland Press, 2024. <a href="https://doi.org/10.1042/bsr20230502">https://doi.org/10.1042/bsr20230502</a>.
  ieee: L. Panska <i>et al.</i>, “Uncovering the essential roles of glutamate carboxypeptidase
    2 orthologs in Caenorhabditis elegans,” <i>Bioscience Reports</i>, vol. 44, no.
    1. Portland Press, 2024.
  ista: Panska L, Nedvedova S, Vacek V, Krivska D, Konecny L, Knop F, Kutil Z, Skultetyova
    L, Leontovyc A, Ulrychova L, Sakanari J, Asahina M, Barinka C, Macurkova M, Dvorak
    J. 2024. Uncovering the essential roles of glutamate carboxypeptidase 2 orthologs
    in Caenorhabditis elegans. Bioscience Reports. 44(1), BSR20230502.
  mla: Panska, Lucie, et al. “Uncovering the Essential Roles of Glutamate Carboxypeptidase
    2 Orthologs in Caenorhabditis Elegans.” <i>Bioscience Reports</i>, vol. 44, no.
    1, BSR20230502, Portland Press, 2024, doi:<a href="https://doi.org/10.1042/bsr20230502">10.1042/bsr20230502</a>.
  short: L. Panska, S. Nedvedova, V. Vacek, D. Krivska, L. Konecny, F. Knop, Z. Kutil,
    L. Skultetyova, A. Leontovyc, L. Ulrychova, J. Sakanari, M. Asahina, C. Barinka,
    M. Macurkova, J. Dvorak, Bioscience Reports 44 (2024).
date_created: 2025-12-12T09:03:54Z
date_published: 2024-01-12T00:00:00Z
date_updated: 2025-12-15T10:21:56Z
day: '12'
ddc:
- '570'
doi: 10.1042/bsr20230502
extern: '1'
external_id:
  pmid:
  - '38108122 '
fulldoi: https://doi.org/10.1042/bsr20230502
has_accepted_license: '1'
intvolume: '        44'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1042/BSR20230502
month: '01'
oa: 1
oa_version: Published Version
pmid: 1
publication: Bioscience Reports
publication_identifier:
  eissn:
  - 1573-4935
  issn:
  - 0144-8463
publication_status: published
publisher: Portland Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Uncovering the essential roles of glutamate carboxypeptidase 2 orthologs in
  Caenorhabditis elegans
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 44
year: '2024'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
_id: '20808'
abstract:
- lang: eng
  text: During Caenorhabditis elegans development, multiple cells migrate long distances
    or extend processes to reach their final position and/or attain proper shape.
    The Wnt signalling pathway stands out as one of the major coordinators of cell
    migration or cell outgrowth along the anterior-posterior body axis. The outcome
    of Wnt signalling is fine-tuned by various mechanisms including endocytosis. In
    this study, we show that SEL-5, the C. elegans orthologue of mammalian AP2-associated
    kinase AAK1, acts together with the retromer complex as a positive regulator of
    EGL-20/Wnt signalling during the migration of QL neuroblast daughter cells. At
    the same time, SEL-5 in cooperation with the retromer complex is also required
    during excretory canal cell outgrowth. Importantly, SEL-5 kinase activity is not
    required for its role in neuronal migration or excretory cell outgrowth, and neither
    of these processes is dependent on DPY-23/AP2M1 phosphorylation. We further establish
    that the Wnt proteins CWN-1 and CWN-2, together with the Frizzled receptor CFZ-2,
    positively regulate excretory cell outgrowth, while LIN-44/Wnt and LIN-17/Frizzled
    together generate a stop signal inhibiting its extension.
article_number: e91054
article_processing_charge: Yes
article_type: original
author:
- first_name: Filip
  full_name: Knop, Filip
  id: 25f3131f-6e7c-11ef-8296-b64ccd4a1b69
  last_name: Knop
  orcid: 0000-0002-3845-3465
- first_name: Apolena
  full_name: Zounarová, Apolena
  last_name: Zounarová
- first_name: Vojtěch
  full_name: Šabata, Vojtěch
  last_name: Šabata
- first_name: Teije Corneel
  full_name: Middelkoop, Teije Corneel
  last_name: Middelkoop
- first_name: Marie
  full_name: Macůrková, Marie
  last_name: Macůrková
citation:
  ama: Knop F, Zounarová A, Šabata V, Middelkoop TC, Macůrková M. Caenorhabditis elegans
    SEL-5/AAK1 regulates cell migration and cell outgrowth independently of its kinase
    activity. <i>eLife</i>. 2024;13. doi:<a href="https://doi.org/10.7554/elife.91054">10.7554/elife.91054</a>
  apa: Knop, F., Zounarová, A., Šabata, V., Middelkoop, T. C., &#38; Macůrková, M.
    (2024). Caenorhabditis elegans SEL-5/AAK1 regulates cell migration and cell outgrowth
    independently of its kinase activity. <i>ELife</i>. eLife Sciences Publications.
    <a href="https://doi.org/10.7554/elife.91054">https://doi.org/10.7554/elife.91054</a>
  chicago: Knop, Filip, Apolena Zounarová, Vojtěch Šabata, Teije Corneel Middelkoop,
    and Marie Macůrková. “Caenorhabditis Elegans SEL-5/AAK1 Regulates Cell Migration
    and Cell Outgrowth Independently of Its Kinase Activity.” <i>ELife</i>. eLife
    Sciences Publications, 2024. <a href="https://doi.org/10.7554/elife.91054">https://doi.org/10.7554/elife.91054</a>.
  ieee: F. Knop, A. Zounarová, V. Šabata, T. C. Middelkoop, and M. Macůrková, “Caenorhabditis
    elegans SEL-5/AAK1 regulates cell migration and cell outgrowth independently of
    its kinase activity,” <i>eLife</i>, vol. 13. eLife Sciences Publications, 2024.
  ista: Knop F, Zounarová A, Šabata V, Middelkoop TC, Macůrková M. 2024. Caenorhabditis
    elegans SEL-5/AAK1 regulates cell migration and cell outgrowth independently of
    its kinase activity. eLife. 13, e91054.
  mla: Knop, Filip, et al. “Caenorhabditis Elegans SEL-5/AAK1 Regulates Cell Migration
    and Cell Outgrowth Independently of Its Kinase Activity.” <i>ELife</i>, vol. 13,
    e91054, eLife Sciences Publications, 2024, doi:<a href="https://doi.org/10.7554/elife.91054">10.7554/elife.91054</a>.
  short: F. Knop, A. Zounarová, V. Šabata, T.C. Middelkoop, M. Macůrková, ELife 13
    (2024).
date_created: 2025-12-12T09:06:31Z
date_published: 2024-07-19T00:00:00Z
date_updated: 2025-12-15T10:26:56Z
day: '19'
doi: 10.7554/elife.91054
extern: '1'
external_id:
  pmid:
  - '39028260'
fulldoi: https://doi.org/10.7554/elife.91054
intvolume: '        13'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.7554/elife.91054
month: '07'
oa: 1
oa_version: Published Version
pmid: 1
publication: eLife
publication_identifier:
  eissn:
  - 2050-084X
publication_status: published
publisher: eLife Sciences Publications
quality_controlled: '1'
scopus_import: '1'
status: public
title: Caenorhabditis elegans SEL-5/AAK1 regulates cell migration and cell outgrowth
  independently of its kinase activity
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 13
year: '2024'
...
---
OA_place: publisher
OA_type: hybrid
_id: '9651'
abstract:
- lang: eng
  text: We introduce a hierachy of equivalence relations on the set of separated nets
    of a given Euclidean space, indexed by concave increasing functions ϕ:(0,∞)→(0,∞).
    Two separated nets are called ϕ-displacement equivalent if, roughly speaking,
    there is a bijection between them which, for large radii R, displaces points of
    norm at most R by something of order at most ϕ(R). We show that the spectrum of
    ϕ-displacement equivalence spans from the established notion of bounded displacement
    equivalence, which corresponds to bounded ϕ, to the indiscrete equivalence relation,
    coresponding to ϕ(R)∈Ω(R), in which all separated nets are equivalent. In between
    the two ends of this spectrum, the notions of ϕ-displacement equivalence are shown
    to be pairwise distinct with respect to the asymptotic classes of ϕ(R) for R→∞.
    We further undertake a comparison of our notion of ϕ-displacement equivalence
    with previously studied relations on separated nets. Particular attention is given
    to the interaction of the notions of ϕ-displacement equivalence with that of bilipschitz
    equivalence.
acknowledgement: 'Open access funding provided by Institute of Science and Technology
  (IST Austria). This work was started while both authors were employed at the University
  of Innsbruck and enjoyed the full support of Austrian Science Fund (FWF): P 30902-N35.
  It was continued when the first named author was employed at University of Leipzig
  and the second named author was employed at Institute of Science and Technology
  of Austria, where he was supported by an IST Fellowship.'
article_number: '15'
article_processing_charge: Yes (via OA deal)
article_type: original
arxiv: 1
author:
- first_name: Michael
  full_name: Dymond, Michael
  last_name: Dymond
- first_name: Vojtech
  full_name: Kaluza, Vojtech
  id: 21AE5134-9EAC-11EA-BEA2-D7BD3DDC885E
  last_name: Kaluza
  orcid: 0000-0002-2512-8698
citation:
  ama: Dymond M, Kaluza V. Divergence of separated nets with respect to displacement
    equivalence. <i>Geometriae Dedicata</i>. 2024;218. doi:<a href="https://doi.org/10.1007/s10711-023-00862-3">10.1007/s10711-023-00862-3</a>
  apa: Dymond, M., &#38; Kaluza, V. (2024). Divergence of separated nets with respect
    to displacement equivalence. <i>Geometriae Dedicata</i>. Springer Nature. <a href="https://doi.org/10.1007/s10711-023-00862-3">https://doi.org/10.1007/s10711-023-00862-3</a>
  chicago: Dymond, Michael, and Vojtech Kaluza. “Divergence of Separated Nets with
    Respect to Displacement Equivalence.” <i>Geometriae Dedicata</i>. Springer Nature,
    2024. <a href="https://doi.org/10.1007/s10711-023-00862-3">https://doi.org/10.1007/s10711-023-00862-3</a>.
  ieee: M. Dymond and V. Kaluza, “Divergence of separated nets with respect to displacement
    equivalence,” <i>Geometriae Dedicata</i>, vol. 218. Springer Nature, 2024.
  ista: Dymond M, Kaluza V. 2024. Divergence of separated nets with respect to displacement
    equivalence. Geometriae Dedicata. 218, 15.
  mla: Dymond, Michael, and Vojtech Kaluza. “Divergence of Separated Nets with Respect
    to Displacement Equivalence.” <i>Geometriae Dedicata</i>, vol. 218, 15, Springer
    Nature, 2024, doi:<a href="https://doi.org/10.1007/s10711-023-00862-3">10.1007/s10711-023-00862-3</a>.
  short: M. Dymond, V. Kaluza, Geometriae Dedicata 218 (2024).
corr_author: '1'
date_created: 2021-07-14T07:01:27Z
date_published: 2024-02-01T00:00:00Z
date_updated: 2025-04-23T07:37:26Z
day: '01'
ddc:
- '510'
department:
- _id: UlWa
doi: 10.1007/s10711-023-00862-3
external_id:
  arxiv:
  - '2102.13046'
  isi:
  - '001105681500001'
  pmid:
  - '38021107'
file:
- access_level: open_access
  checksum: 9418534ac2f3d6f1f091a8b8ccaed01e
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  creator: dernst
  date_created: 2024-07-16T10:14:13Z
  date_updated: 2024-07-16T10:14:13Z
  file_id: '17257'
  file_name: 2024_GeometriaeDedicata_Dymond.pdf
  file_size: 540981
  relation: main_file
  success: 1
file_date_updated: 2024-07-16T10:14:13Z
fulldoi: https://doi.org/10.1007/s10711-023-00862-3
has_accepted_license: '1'
intvolume: '       218'
isi: 1
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
pmid: 1
publication: Geometriae Dedicata
publication_identifier:
  eissn:
  - 1572-9168
  issn:
  - 0046-5755
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Divergence of separated nets with respect to displacement equivalence
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 218
year: '2024'
...
---
APC_amount: 6828 EUR
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
_id: '17202'
abstract:
- lang: eng
  text: Gate-tunable transmons (gatemons) employing semiconductor Josephson junctions
    have recently emerged as building blocks for hybrid quantum circuits. In this
    study, we present a gatemon fabricated in planar Germanium. We induce superconductivity
    in a two-dimensional hole gas by evaporating aluminum atop a thin spacer, which
    separates the superconductor from the Ge quantum well. The Josephson junction
    is then integrated into an Xmon circuit and capacitively coupled to a transmission
    line resonator. We showcase the qubit tunability in a broad frequency range with
    resonator and two-tone spectroscopy. Time-domain characterizations reveal energy
    relaxation and coherence times up to 75 ns. Our results, combined with the recent
    advances in the spin qubit field, pave the way towards novel hybrid and protected
    qubits in a group IV, CMOS-compatible material.
acknowledged_ssus:
- _id: ScienComp
- _id: M-Shop
- _id: NanoFab
acknowledgement: "We acknowledge Lucas Casparis, Jeroen Danon, Valla Fatemi, Morten
  Kjaergard and Javad Shabani for their valuable insights and comments. This research
  was supported by the Scientific Service Units of ISTA through resources provided
  by the MIBA Machine Shop\r\nand the Nanofabrication facility. This research and
  related results were made possible with the support of the NOMIS Foundation and
  the FWF Projects with DOI:10.55776/I5060 and DOI:10.55776/P36507. We also acknowledge
  the NextGenerationEU PRIN project\r\n2022A8CJP3 (GAMESQUAD) for partial financial
  support."
article_number: '6400'
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: Oliver
  full_name: Sagi, Oliver
  id: 71616374-A8E9-11E9-A7CA-09ECE5697425
  last_name: Sagi
- first_name: Alessandro
  full_name: Crippa, Alessandro
  id: 1F2B21A2-F6E7-11E9-9B82-F7DBE5697425
  last_name: Crippa
  orcid: 0000-0002-2968-611X
- first_name: Marco
  full_name: Valentini, Marco
  id: C0BB2FAC-D767-11E9-B658-BC13E6697425
  last_name: Valentini
- first_name: Marian
  full_name: Janik, Marian
  id: 396A1950-F248-11E8-B48F-1D18A9856A87
  last_name: Janik
  orcid: 0009-0003-9037-8831
- first_name: Levon
  full_name: Baghumyan, Levon
  id: 7aa1f788-b527-11ee-aa9e-e6111a79e0c7
  last_name: Baghumyan
- first_name: Giorgio
  full_name: Fabris, Giorgio
  id: 298cf6f3-1ff6-11ee-9fa6-d94cfa0b3352
  last_name: Fabris
- first_name: Lucky
  full_name: Kapoor, Lucky
  id: 84b9700b-15b2-11ec-abd3-831089e67615
  last_name: Kapoor
  orcid: 0000-0001-8319-2148
- first_name: Farid
  full_name: Hassani, Farid
  id: 2AED110C-F248-11E8-B48F-1D18A9856A87
  last_name: Hassani
  orcid: 0000-0001-6937-5773
- first_name: Johannes M
  full_name: Fink, Johannes M
  id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
  last_name: Fink
  orcid: 0000-0001-8112-028X
- first_name: Stefano
  full_name: Calcaterra, Stefano
  last_name: Calcaterra
- first_name: Daniel
  full_name: Chrastina, Daniel
  last_name: Chrastina
- first_name: Giovanni
  full_name: Isella, Giovanni
  last_name: Isella
- first_name: Georgios
  full_name: Katsaros, Georgios
  id: 38DB5788-F248-11E8-B48F-1D18A9856A87
  last_name: Katsaros
  orcid: 0000-0001-8342-202X
citation:
  ama: Sagi O, Crippa A, Valentini M, et al. A gate tunable transmon qubit in planar
    Ge. <i>Nature Communications</i>. 2024;15. doi:<a href="https://doi.org/10.1038/s41467-024-50763-6">10.1038/s41467-024-50763-6</a>
  apa: Sagi, O., Crippa, A., Valentini, M., Janik, M., Baghumyan, L., Fabris, G.,
    … Katsaros, G. (2024). A gate tunable transmon qubit in planar Ge. <i>Nature Communications</i>.
    Springer Nature. <a href="https://doi.org/10.1038/s41467-024-50763-6">https://doi.org/10.1038/s41467-024-50763-6</a>
  chicago: Sagi, Oliver, Alessandro Crippa, Marco Valentini, Marian Janik, Levon Baghumyan,
    Giorgio Fabris, Lucky Kapoor, et al. “A Gate Tunable Transmon Qubit in Planar
    Ge.” <i>Nature Communications</i>. Springer Nature, 2024. <a href="https://doi.org/10.1038/s41467-024-50763-6">https://doi.org/10.1038/s41467-024-50763-6</a>.
  ieee: O. Sagi <i>et al.</i>, “A gate tunable transmon qubit in planar Ge,” <i>Nature
    Communications</i>, vol. 15. Springer Nature, 2024.
  ista: Sagi O, Crippa A, Valentini M, Janik M, Baghumyan L, Fabris G, Kapoor L, Hassani
    F, Fink JM, Calcaterra S, Chrastina D, Isella G, Katsaros G. 2024. A gate tunable
    transmon qubit in planar Ge. Nature Communications. 15, 6400.
  mla: Sagi, Oliver, et al. “A Gate Tunable Transmon Qubit in Planar Ge.” <i>Nature
    Communications</i>, vol. 15, 6400, Springer Nature, 2024, doi:<a href="https://doi.org/10.1038/s41467-024-50763-6">10.1038/s41467-024-50763-6</a>.
  short: O. Sagi, A. Crippa, M. Valentini, M. Janik, L. Baghumyan, G. Fabris, L. Kapoor,
    F. Hassani, J.M. Fink, S. Calcaterra, D. Chrastina, G. Isella, G. Katsaros, Nature
    Communications 15 (2024).
corr_author: '1'
date_created: 2024-07-04T11:40:45Z
date_published: 2024-07-30T00:00:00Z
date_updated: 2026-04-07T13:01:55Z
day: '30'
ddc:
- '530'
department:
- _id: GeKa
- _id: JoFi
- _id: GradSch
doi: 10.1038/s41467-024-50763-6
external_id:
  arxiv:
  - '2403.16774'
  isi:
  - '001281271000022'
  pmid:
  - '39080279'
file:
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has_accepted_license: '1'
intvolume: '        15'
isi: 1
language:
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month: '07'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: bd8bd29e-d553-11ed-ba76-f0070d4b237a
  grant_number: P36507
  name: Merging spin and superconducting qubits in planar Ge
- _id: c0977eea-5a5b-11eb-8a69-a862db0cf4d1
  grant_number: I05060
  name: High impedance circuit quantum electrodynamics with hole spins
- _id: 262116AA-B435-11E9-9278-68D0E5697425
  name: Hybrid Semiconductor - Superconductor Quantum Devices
- _id: 3AC91DDA-15DF-11EA-824D-93A3E7B544D1
  call_identifier: FWF
  name: FWF Open Access Fund
publication: Nature Communications
publication_identifier:
  eissn:
  - 2041-1723
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
  link:
  - relation: erratum
    url: https://doi.org/10.1038/s41467-024-53910-1
  record:
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    status: public
scopus_import: '1'
status: public
title: A gate tunable transmon qubit in planar Ge
tmp:
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  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: 15
year: '2024'
...
---
_id: '17203'
abstract:
- lang: eng
  text: "The behavior of a rigid body primarily depends on its mass moments, which
    consist of the mass, center of mass, and moments of inertia. It is possible to
    manipulate these quantities without altering the geometric appearance of an object
    by introducing cavities in its interior. Algorithms that find cavities of suitable
    shapes and sizes have enabled the computational design of spinning tops, yo-yos,
    wheels, buoys, and statically balanced objects. Previous work is based, for example,
    on topology optimization on voxel grids, which introduces a large number of optimization
    variables and box constraints, or offset surface computation, which cannot guarantee
    that solutions to a feasible problem will always be found.\r\n\r\nIn this work,
    we provide a mathematical analysis of constrained topology optimization problems
    that depend only on mass moments. This class of problems covers, among others,
    all applications mentioned above. Our main result is to show that no matter the
    outer shape of the rigid body to be optimized or the optimization objective and
    constraints considered, the optimal solution always features a quadric-shaped
    interface between material and cavities. This proves that optimal interfaces are
    always ellipsoids, hyperboloids, paraboloids, or one of a few degenerate cases,
    such as planes.\r\n\r\nThis insight lets us replace a difficult topology optimization
    problem with a provably equivalent non-linear equation system in a small number
    (<10) of variables, which represent the coefficients of the quadric. This system
    can be solved in a few seconds for most examples, provides insights into the geometric
    structure of many specific applications, and lets us describe their solution properties.
    Finally, our method integrates seamlessly into modern fabrication workflows because
    our solutions are analytical surfaces that are native to the CAD domain."
acknowledgement: We thank Gianmarco Cherchi for his help in tailoring the Mesh Booleans
  code for this project, Stefan Jeschke for his help with the photographs, Malina
  Strugaru and Aleksei Kalinov for their help with the samples, and the anonymous
  reviewers as well as the members of the ISTA Visual Computing Group for their feedback.
  This project was funded in part by the European Research Council (ERC Consolidator
  Grant 101045083 CoDiNA).
article_number: '78'
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Christian
  full_name: Hafner, Christian
  id: 400429CC-F248-11E8-B48F-1D18A9856A87
  last_name: Hafner
- first_name: Mickaël
  full_name: Ly, Mickaël
  id: 6340d7f0-b48d-11eb-b10d-b7487e71d9f1
  last_name: Ly
- first_name: Christopher J
  full_name: Wojtan, Christopher J
  id: 3C61F1D2-F248-11E8-B48F-1D18A9856A87
  last_name: Wojtan
  orcid: 0000-0001-6646-5546
citation:
  ama: 'Hafner C, Ly M, Wojtan C. Spin-it faster: Quadrics solve all topology optimization
    problems that depend only on mass moments. <i>Transactions on Graphics</i>. 2024;43(4).
    doi:<a href="https://doi.org/10.1145/3658194">10.1145/3658194</a>'
  apa: 'Hafner, C., Ly, M., &#38; Wojtan, C. (2024). Spin-it faster: Quadrics solve
    all topology optimization problems that depend only on mass moments. <i>Transactions
    on Graphics</i>. Denver, Colorado: Association for Computing Machinery. <a href="https://doi.org/10.1145/3658194">https://doi.org/10.1145/3658194</a>'
  chicago: 'Hafner, Christian, Mickaël Ly, and Chris Wojtan. “Spin-It Faster: Quadrics
    Solve All Topology Optimization Problems That Depend Only on Mass Moments.” <i>Transactions
    on Graphics</i>. Association for Computing Machinery, 2024. <a href="https://doi.org/10.1145/3658194">https://doi.org/10.1145/3658194</a>.'
  ieee: 'C. Hafner, M. Ly, and C. Wojtan, “Spin-it faster: Quadrics solve all topology
    optimization problems that depend only on mass moments,” <i>Transactions on Graphics</i>,
    vol. 43, no. 4. Association for Computing Machinery, 2024.'
  ista: 'Hafner C, Ly M, Wojtan C. 2024. Spin-it faster: Quadrics solve all topology
    optimization problems that depend only on mass moments. Transactions on Graphics.
    43(4), 78.'
  mla: 'Hafner, Christian, et al. “Spin-It Faster: Quadrics Solve All Topology Optimization
    Problems That Depend Only on Mass Moments.” <i>Transactions on Graphics</i>, vol.
    43, no. 4, 78, Association for Computing Machinery, 2024, doi:<a href="https://doi.org/10.1145/3658194">10.1145/3658194</a>.'
  short: C. Hafner, M. Ly, C. Wojtan, Transactions on Graphics 43 (2024).
conference:
  end_date: 2024-08-01
  location: Denver, Colorado
  start_date: 2024-07-28
corr_author: '1'
date_created: 2024-07-05T12:08:57Z
date_published: 2024-07-01T00:00:00Z
date_updated: 2025-09-08T08:29:09Z
day: '01'
ddc:
- '516'
department:
- _id: ChWo
doi: 10.1145/3658194
external_id:
  isi:
  - '001289270900045'
file:
- access_level: open_access
  checksum: 0dc9f5a6422b8a49a79026900f349ee5
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  creator: chafner
  date_created: 2024-07-05T12:05:17Z
  date_updated: 2024-07-05T12:05:17Z
  file_id: '17204'
  file_name: sif-final.pdf
  file_size: 7225150
  relation: main_file
  success: 1
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  creator: chafner
  date_created: 2024-07-05T12:06:03Z
  date_updated: 2024-07-05T12:06:03Z
  file_id: '17205'
  file_name: sif-supp-final.pdf
  file_size: 397262
  relation: supplementary_material
- access_level: open_access
  checksum: c0457a09c2ab9a1c2935c995dcc84907
  content_type: video/mp4
  creator: chafner
  date_created: 2024-07-17T09:29:13Z
  date_updated: 2024-07-17T09:29:13Z
  file_id: '17276'
  file_name: sif-video-final.mp4
  file_size: 170001305
  relation: supplementary_material
  title: Submission Video
file_date_updated: 2024-07-17T09:29:13Z
fulldoi: https://doi.org/10.1145/3658194
has_accepted_license: '1'
intvolume: '        43'
isi: 1
issue: '4'
keyword:
- Topology Optimization
- Mass Moments
- Computational Geometry
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
project:
- _id: 34bc2376-11ca-11ed-8bc3-9a3b3961a088
  grant_number: '101045083'
  name: Computational Discovery of Numerical Algorithms for Animation and Simulation
    of Natural Phenomena
publication: Transactions on Graphics
publication_identifier:
  eissn:
  - 1557-7368
  issn:
  - 0730-0301
publication_status: published
publisher: Association for Computing Machinery
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Spin-it faster: Quadrics solve all topology optimization problems that depend
  only on mass moments'
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 43
year: '2024'
...
---
_id: '17207'
acknowledgement: "This research was funded by the Austrian Science Fund (FWF), project
  doi: 10.55776/P32896, Institutional Identifier: 501100002428, grant number: P32896
  and L.F. acknowledges the support of the NOMIS-ISTA Fellowship Program.\r\nWe would
  like to thank Nick Barton, Roger Butlin, Stuart Baird, Patrik Nosil, and Jason Sexton
  for their insightful comments on the earlier drafts, and to John Carchrae for his
  valuable contribution in refining phrasing and enhancing clarity. For open access
  purposes, the author has applied a CC BY public copyright license to any author-accepted
  manuscript version arising from this submission."
article_processing_charge: No
article_type: letter_note
author:
- first_name: Louise
  full_name: Fouqueau, Louise
  id: 1676e173-8143-11ed-8927-fe165216a93f
  last_name: Fouqueau
  orcid: 0000-0003-0371-9339
- first_name: Jitka
  full_name: Polechova, Jitka
  id: 3BBFB084-F248-11E8-B48F-1D18A9856A87
  last_name: Polechova
  orcid: 0000-0003-0951-3112
citation:
  ama: 'Fouqueau L, Polechova J. Eco-evolutionary dynamics in changing environments:
    Integrating theory with data. <i>Journal of evolutionary biology</i>. 2024;37(6):579-587.
    doi:<a href="https://doi.org/10.1093/jeb/voae067">10.1093/jeb/voae067</a>'
  apa: 'Fouqueau, L., &#38; Polechova, J. (2024). Eco-evolutionary dynamics in changing
    environments: Integrating theory with data. <i>Journal of Evolutionary Biology</i>.
    Oxford University Press. <a href="https://doi.org/10.1093/jeb/voae067">https://doi.org/10.1093/jeb/voae067</a>'
  chicago: 'Fouqueau, Louise, and Jitka Polechova. “Eco-Evolutionary Dynamics in Changing
    Environments: Integrating Theory with Data.” <i>Journal of Evolutionary Biology</i>.
    Oxford University Press, 2024. <a href="https://doi.org/10.1093/jeb/voae067">https://doi.org/10.1093/jeb/voae067</a>.'
  ieee: 'L. Fouqueau and J. Polechova, “Eco-evolutionary dynamics in changing environments:
    Integrating theory with data,” <i>Journal of evolutionary biology</i>, vol. 37,
    no. 6. Oxford University Press, pp. 579–587, 2024.'
  ista: 'Fouqueau L, Polechova J. 2024. Eco-evolutionary dynamics in changing environments:
    Integrating theory with data. Journal of evolutionary biology. 37(6), 579–587.'
  mla: 'Fouqueau, Louise, and Jitka Polechova. “Eco-Evolutionary Dynamics in Changing
    Environments: Integrating Theory with Data.” <i>Journal of Evolutionary Biology</i>,
    vol. 37, no. 6, Oxford University Press, 2024, pp. 579–87, doi:<a href="https://doi.org/10.1093/jeb/voae067">10.1093/jeb/voae067</a>.'
  short: L. Fouqueau, J. Polechova, Journal of Evolutionary Biology 37 (2024) 579–587.
date_created: 2024-07-07T22:01:04Z
date_published: 2024-06-28T00:00:00Z
date_updated: 2026-06-18T17:53:35Z
day: '28'
ddc:
- '570'
department:
- _id: NiBa
doi: 10.1093/jeb/voae067
external_id:
  isi:
  - '001258359900001'
  pmid:
  - '38941551'
fulldoi: https://doi.org/10.1093/jeb/voae067
intvolume: '        37'
isi: 1
issue: '6'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1093/jeb/voae067
month: '06'
oa: 1
oa_version: Published Version
page: 579-587
pmid: 1
project:
- _id: c08d3278-5a5b-11eb-8a69-fdb09b55f4b8
  grant_number: P32896
  name: Causes and consequences of population fragmentation
- _id: 9B861AAC-BA93-11EA-9121-9846C619BF3A
  name: NOMIS Fellowship Program
publication: Journal of evolutionary biology
publication_identifier:
  eissn:
  - 1420-9101
publication_status: published
publisher: Oxford University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Eco-evolutionary dynamics in changing environments: Integrating theory with
  data'
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 37
year: '2024'
...
---
OA_place: publisher
_id: '17208'
abstract:
- lang: eng
  text: "Can current quantum computers provide a speedup over their classical counterparts
    for some kinds of problems? In this thesis, with a focus on ground state search/preparation,
    we address some of the challenges that both quantum annealing and variational
    quantum algorithms suffer from, hindering any possible practical speedup in comparison
    to the best classical counterparts. \r\n\r\nIn the first part of the thesis, we
    study the performance of quantum annealing for solving a particular combinatorial
    optimization problem called 3-XOR satisfability (3-XORSAT). The classical problem
    is mapped into a ground state search of a 3-local classical Hamiltonian $H_C$.
    We consider how modifying the initial problem, by adding more interaction terms
    to the corresponding Hamiltonian, leads to the emergence of a first-order phase
    transition during the annealing process. This phenomenon causes the total annealing
    duration, $T$, required to prepare the ground state of $H_C$ with a high probability
    to increase exponentially with the size of the problem. Our findings indicate
    that with the growing complexity of problem instances, the likelihood of encountering
    first-order phase transitions also increases, making quantum annealing an impractical
    solution for these types of combinatorial optimization problems.\r\n\r\nIn the
    second part, we focus on the problem of barren plateaus in generic variational
    quantum algorithms. Barren plateaus correspond to flat regions in the parameter
    space where the gradient of the cost function is zero in expectation, and with
    the variance decaying exponentially with the system size, thus obstructing an
    efficient parameter optimization.  We propose an algorithm to circumvent Barren
    Plateaus by monitoring the entanglement entropy of k-local reduced density matrices,
    alongside a method for estimating entanglement entropy via classical shadow tomography.
    We illustrate the approach with the paradigmatic example of the variational quantum
    eigensolver, and show that our algorithm effectively avoids barren plateaus in
    the initialization as well as during the optimization stage. \r\n\r\nLastly, in
    the last two Chapters of this thesis, we focus on the quantum approximate optimization
    algorithm (QAOA), originally introduced as an algorithm for solving generic combinatorial
    optimization problems in near-term quantum devices. Specifically, we focus on
    how to develop rigorous initialization strategies with guarantee improvement.
    Our motivation for this study lies in that for random initialization, the optimization
    typically leads to local minima with poor performance. Our main result corresponds
    to the analytical construction of index-1 saddle points or transition states,
    stationary points with a single direction of descent, as a tool for systematically
    exploring the QAOA optimization landscape. This leads us to propose a novel greedy
    parameter initialization strategy that guarantees for the energy to decrease with
    an increasing number of circuit layers. Furthermore, with precise estimates for
    the negative Hessian eigenvalue and its eigenvector, we establish a lower bound
    for energy improvement following a QAOA iteration."
acknowledged_ssus:
- _id: ScienComp
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Raimel A
  full_name: Medina Ramos, Raimel A
  id: CE680B90-D85A-11E9-B684-C920E6697425
  last_name: Medina Ramos
  orcid: 0000-0002-5383-2869
citation:
  ama: Medina Ramos RA. Exploring the optimization landscape of variational quantum
    algorithms. 2024. doi:<a href="https://doi.org/10.15479/at:ista:17208">10.15479/at:ista:17208</a>
  apa: Medina Ramos, R. A. (2024). <i>Exploring the optimization landscape of variational
    quantum algorithms</i>. Institute of Science and Technology Austria. <a href="https://doi.org/10.15479/at:ista:17208">https://doi.org/10.15479/at:ista:17208</a>
  chicago: Medina Ramos, Raimel A. “Exploring the Optimization Landscape of Variational
    Quantum Algorithms.” Institute of Science and Technology Austria, 2024. <a href="https://doi.org/10.15479/at:ista:17208">https://doi.org/10.15479/at:ista:17208</a>.
  ieee: R. A. Medina Ramos, “Exploring the optimization landscape of variational quantum
    algorithms,” Institute of Science and Technology Austria, 2024.
  ista: Medina Ramos RA. 2024. Exploring the optimization landscape of variational
    quantum algorithms. Institute of Science and Technology Austria.
  mla: Medina Ramos, Raimel A. <i>Exploring the Optimization Landscape of Variational
    Quantum Algorithms</i>. Institute of Science and Technology Austria, 2024, doi:<a
    href="https://doi.org/10.15479/at:ista:17208">10.15479/at:ista:17208</a>.
  short: R.A. Medina Ramos, Exploring the Optimization Landscape of Variational Quantum
    Algorithms, Institute of Science and Technology Austria, 2024.
corr_author: '1'
date_created: 2024-07-09T09:14:24Z
date_published: 2024-07-09T00:00:00Z
date_updated: 2026-04-07T12:43:22Z
day: '09'
ddc:
- '539'
degree_awarded: PhD
department:
- _id: GradSch
- _id: MaSe
doi: 10.15479/at:ista:17208
ec_funded: 1
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file_date_updated: 2024-07-17T09:23:24Z
fulldoi: https://doi.org/10.15479/at:ista:17208
has_accepted_license: '1'
keyword:
- Quantum computing
- Variational Quantum Algorithms
- Optimization
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: '133'
project:
- _id: 23841C26-32DE-11EA-91FC-C7463DDC885E
  call_identifier: H2020
  grant_number: '850899'
  name: 'Non-Ergodic Quantum Matter: Universality, Dynamics and Control'
publication_identifier:
  issn:
  - 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
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status: public
supervisor:
- first_name: Maksym
  full_name: Serbyn, Maksym
  id: 47809E7E-F248-11E8-B48F-1D18A9856A87
  last_name: Serbyn
  orcid: 0000-0002-2399-5827
title: Exploring the optimization landscape of variational quantum algorithms
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  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: dissertation
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
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...
---
_id: '17214'
abstract:
- lang: eng
  text: 'Current numerical algorithms for simulating friction fall in one of two camps:
    smooth solvers sacrifice the stable treatment of static friction in exchange for
    fast convergence, and non-smooth solvers accurately compute friction at convergence
    rates that are often prohibitive for large graphics applications. We introduce
    a novel bridge between these two ideas that computes static and dynamic friction
    stably and efficiently. Our key idea is to convert the highly constrained non-smooth
    problem into an unconstrained smooth problem using logarithmic barriers that converges
    to the exact solution as accuracy increases. We phrase the problem as an interior
    point primal-dual problem that can be solved efficiently with Newton iteration.
    We observe quadratic convergence despite the non-smooth nature of the original
    problem, and our method is well-suited for large systems of tightly packed objects
    with many contact points. We demonstrate the efficacy of our method with stable
    piles of grains and stacks of objects, complex granular flows, and robust interlocking
    assemblies of rigid bodies.'
acknowledgement: We thank Vincent Acary for his help with Siconos, as well as the
  anonymous reviewers and the members of the Visual Computing Group at ISTA for their
  helpful comments. This research was funded in part by the European Union (ERC-2021-COG
  101045083 CoDiNA).
article_processing_charge: Yes (via OA deal)
author:
- first_name: Yi-Lu
  full_name: Chen, Yi-Lu
  id: 0b467602-dbcd-11ea-9d1d-ed480aa46b70
  last_name: Chen
- first_name: Mickaël
  full_name: Ly, Mickaël
  id: 6340d7f0-b48d-11eb-b10d-b7487e71d9f1
  last_name: Ly
- first_name: Christopher J
  full_name: Wojtan, Christopher J
  id: 3C61F1D2-F248-11E8-B48F-1D18A9856A87
  last_name: Wojtan
  orcid: 0000-0001-6646-5546
citation:
  ama: 'Chen Y-L, Ly M, Wojtan C. Primal-dual non-smooth friction for rigid body animation.
    In: <i>Special Interest Group on Computer Graphics and Interactive Techniques
    Conference Conference Papers ’24</i>. Association for Computing Machinery; 2024.
    doi:<a href="https://doi.org/10.1145/3641519.3657485">10.1145/3641519.3657485</a>'
  apa: 'Chen, Y.-L., Ly, M., &#38; Wojtan, C. (2024). Primal-dual non-smooth friction
    for rigid body animation. In <i>Special Interest Group on Computer Graphics and
    Interactive Techniques Conference Conference Papers ’24</i>. Denver, United States:
    Association for Computing Machinery. <a href="https://doi.org/10.1145/3641519.3657485">https://doi.org/10.1145/3641519.3657485</a>'
  chicago: Chen, Yi-Lu, Mickaël Ly, and Chris Wojtan. “Primal-Dual Non-Smooth Friction
    for Rigid Body Animation.” In <i>Special Interest Group on Computer Graphics and
    Interactive Techniques Conference Conference Papers ’24</i>. Association for Computing
    Machinery, 2024. <a href="https://doi.org/10.1145/3641519.3657485">https://doi.org/10.1145/3641519.3657485</a>.
  ieee: Y.-L. Chen, M. Ly, and C. Wojtan, “Primal-dual non-smooth friction for rigid
    body animation,” in <i>Special Interest Group on Computer Graphics and Interactive
    Techniques Conference Conference Papers ’24</i>, Denver, United States, 2024.
  ista: 'Chen Y-L, Ly M, Wojtan C. 2024. Primal-dual non-smooth friction for rigid
    body animation. Special Interest Group on Computer Graphics and Interactive Techniques
    Conference Conference Papers ’24. SIGGRAPH: Computer Graphics and Interactive
    Techniques Conference.'
  mla: Chen, Yi-Lu, et al. “Primal-Dual Non-Smooth Friction for Rigid Body Animation.”
    <i>Special Interest Group on Computer Graphics and Interactive Techniques Conference
    Conference Papers ’24</i>, Association for Computing Machinery, 2024, doi:<a href="https://doi.org/10.1145/3641519.3657485">10.1145/3641519.3657485</a>.
  short: Y.-L. Chen, M. Ly, C. Wojtan, in:, Special Interest Group on Computer Graphics
    and Interactive Techniques Conference Conference Papers ’24, Association for Computing
    Machinery, 2024.
conference:
  end_date: 2024-08-01
  location: Denver, United States
  name: 'SIGGRAPH: Computer Graphics and Interactive Techniques Conference'
  start_date: 2024-07-28
corr_author: '1'
date_created: 2024-07-10T11:06:20Z
date_published: 2024-07-01T00:00:00Z
date_updated: 2025-09-08T08:54:38Z
day: '01'
ddc:
- '621'
- '531'
- '006'
department:
- _id: GradSch
- _id: ChWo
doi: 10.1145/3641519.3657485
external_id:
  isi:
  - '001282218200091'
file:
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  creator: yichen
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  date_updated: 2024-07-10T11:03:14Z
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  date_updated: 2024-07-10T11:03:12Z
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  date_created: 2024-07-10T11:03:51Z
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file_date_updated: 2024-07-10T11:03:58Z
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has_accepted_license: '1'
isi: 1
keyword:
- physical simulation
- frictional contact
- rigid body mechanics
- non-smooth dynamics
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
project:
- _id: 34bc2376-11ca-11ed-8bc3-9a3b3961a088
  grant_number: '101045083'
  name: Computational Discovery of Numerical Algorithms for Animation and Simulation
    of Natural Phenomena
publication: Special Interest Group on Computer Graphics and Interactive Techniques
  Conference Conference Papers '24
publication_identifier:
  isbn:
  - '9798400705250'
publication_status: published
publisher: Association for Computing Machinery
quality_controlled: '1'
scopus_import: '1'
status: public
title: Primal-dual non-smooth friction for rigid body animation
type: conference
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
year: '2024'
...
---
OA_place: publisher
OA_type: hybrid
_id: '17219'
abstract:
- lang: eng
  text: 'We introduce a multi-material non-manifold mesh-based surface tracking algorithm
    that converts self-intersections into topological changes. Our algorithm generalizes
    prior work on manifold surface tracking with topological changes: it preserves
    surface features like mesh-based methods, and it robustly handles topological
    changes like level set methods. Our method also offers improved efficiency and
    robustness over the state of the art. We demonstrate the effectiveness of the
    approach on a range of examples, including complex soap film simulations with
    thousands of interacting bubbles, and boolean unions of non-manifold meshes consisting
    of millions of triangles.'
acknowledgement: Peter Heiss-Synak helped conceive the project, helped formulate the
  algorithm structure, contributed ideas and code to Sections 6 & 8, the mesh data
  structure, algorithm robustness and benchmarks, helped write the paper, and provided
  supervision and conceptual solutions throughout the project. Aleksei Kalinov contributed
  ideas and code to Sections 7, 8.5, and 5, the sparse grid data structure, algorithm
  robustness and benchmarks, optimized the performance, produced all results, most
  figures, and the supplementary video, helped write the text, and provided conceptual
  solutions throughout the project. Malina Strugaru helped implement the mesh data
  structure and designed re-meshing operations for non-manifold triangle meshes. Arian
  Etemadi developed early prototypes for ideas in Sections 8.1 and 8.3 and helped
  write the paper. Huidong Yang developed early prototypes for isosurface extraction
  and visualization. Chris Wojtan helped conceive the project, helped write the paper,
  and provided supervision, prototype grid data structure code, and conceptual solutions
  throughout the project. We thank the anonymous reviewers for their helpful comments,
  the members of the Visual Computing Group at ISTA for their feedback, Christopher
  Batty for discussions about LosTopos, and SideFX for the Houdini Education software
  licenses.  This research was funded in part by the European Union (ERC-2021-COG
  101045083 CoDiNA).
article_number: '54'
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Peter
  full_name: Synak, Peter
  id: 331776E2-F248-11E8-B48F-1D18A9856A87
  last_name: Synak
- first_name: Aleksei
  full_name: Kalinov, Aleksei
  id: 44b7120e-eb97-11eb-a6c2-e1557aa81d02
  last_name: Kalinov
  orcid: 0000-0003-2189-3904
- first_name: Irina-Malina
  full_name: Strugaru, Irina-Malina
  id: 2afc607f-f128-11eb-9611-8f2a0dfcf074
  last_name: Strugaru
- first_name: Arian
  full_name: Etemadihaghighi, Arian
  id: 36cea3aa-f38e-11ec-8ae0-c65ae6f6098f
  last_name: Etemadihaghighi
- first_name: Huidong
  full_name: Yang, Huidong
  last_name: Yang
- first_name: Christopher J
  full_name: Wojtan, Christopher J
  id: 3C61F1D2-F248-11E8-B48F-1D18A9856A87
  last_name: Wojtan
  orcid: 0000-0001-6646-5546
citation:
  ama: Synak P, Kalinov A, Strugaru I-M, Etemadi A, Yang H, Wojtan C. Multi-material
    mesh-based surface tracking with implicit topology changes. <i>ACM Transactions
    on Graphics</i>. 2024;43(4). doi:<a href="https://doi.org/10.1145/3658223">10.1145/3658223</a>
  apa: Synak, P., Kalinov, A., Strugaru, I.-M., Etemadi, A., Yang, H., &#38; Wojtan,
    C. (2024). Multi-material mesh-based surface tracking with implicit topology changes.
    <i>ACM Transactions on Graphics</i>. Association for Computing Machinery. <a href="https://doi.org/10.1145/3658223">https://doi.org/10.1145/3658223</a>
  chicago: Synak, Peter, Aleksei Kalinov, Irina-Malina Strugaru, Arian Etemadi, Huidong
    Yang, and Chris Wojtan. “Multi-Material Mesh-Based Surface Tracking with Implicit
    Topology Changes.” <i>ACM Transactions on Graphics</i>. Association for Computing
    Machinery, 2024. <a href="https://doi.org/10.1145/3658223">https://doi.org/10.1145/3658223</a>.
  ieee: P. Synak, A. Kalinov, I.-M. Strugaru, A. Etemadi, H. Yang, and C. Wojtan,
    “Multi-material mesh-based surface tracking with implicit topology changes,” <i>ACM
    Transactions on Graphics</i>, vol. 43, no. 4. Association for Computing Machinery,
    2024.
  ista: Synak P, Kalinov A, Strugaru I-M, Etemadi A, Yang H, Wojtan C. 2024. Multi-material
    mesh-based surface tracking with implicit topology changes. ACM Transactions on
    Graphics. 43(4), 54.
  mla: Synak, Peter, et al. “Multi-Material Mesh-Based Surface Tracking with Implicit
    Topology Changes.” <i>ACM Transactions on Graphics</i>, vol. 43, no. 4, 54, Association
    for Computing Machinery, 2024, doi:<a href="https://doi.org/10.1145/3658223">10.1145/3658223</a>.
  short: P. Synak, A. Kalinov, I.-M. Strugaru, A. Etemadi, H. Yang, C. Wojtan, ACM
    Transactions on Graphics 43 (2024).
corr_author: '1'
date_created: 2024-07-10T12:24:00Z
date_published: 2024-07-01T00:00:00Z
date_updated: 2026-04-07T13:02:36Z
day: '01'
ddc:
- '004'
department:
- _id: GradSch
- _id: ChWo
doi: 10.1145/3658223
external_id:
  isi:
  - '001289270900021'
file:
- access_level: open_access
  checksum: 1917067d4b52d7729019b03560004e43
  content_type: application/pdf
  creator: dernst
  date_created: 2024-07-23T06:35:15Z
  date_updated: 2024-07-23T06:35:15Z
  file_id: '17317'
  file_name: 2024_ACMToG_HeissSynak.pdf
  file_size: 48763368
  relation: main_file
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  checksum: a4f0e293184bfa034c0c585848806b17
  content_type: video/mp4
  creator: akalinov
  date_created: 2024-07-10T12:23:44Z
  date_updated: 2024-07-10T12:23:44Z
  file_id: '17221'
  file_name: sdtopofixer_final.mp4
  file_size: 48021463
  relation: main_file
  success: 1
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  checksum: 18fc310a78ec91651148c45a8b89fa44
  content_type: application/pdf
  creator: akalinov
  date_created: 2025-11-11T09:50:52Z
  date_updated: 2025-11-11T09:50:52Z
  file_id: '20633'
  file_name: SuperDuperTopoFixer.pdf
  file_size: 48639581
  relation: preprint
  title: Authors' version of the text
file_date_updated: 2025-11-11T09:50:52Z
fulldoi: https://doi.org/10.1145/3658223
has_accepted_license: '1'
intvolume: '        43'
isi: 1
issue: '4'
keyword:
- surface tracking
- topology change
- non- manifold meshes
- multi-material flows
- solid modeling
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
project:
- _id: 34bc2376-11ca-11ed-8bc3-9a3b3961a088
  grant_number: '101045083'
  name: Computational Discovery of Numerical Algorithms for Animation and Simulation
    of Natural Phenomena
publication: ACM Transactions on Graphics
publication_identifier:
  eissn:
  - 1557-7368
  issn:
  - 0730-0301
publication_status: published
publisher: Association for Computing Machinery
quality_controlled: '1'
related_material:
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    relation: dissertation_contains
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  - id: '18301'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: Multi-material mesh-based surface tracking with implicit topology changes
tmp:
  image: /images/cc_by_nc_sa.png
  legal_code_url: https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode
  name: Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC
    BY-NC-SA 4.0)
  short: CC BY-NC-SA (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 43
year: '2024'
...
---
OA_place: repository
_id: '17222'
abstract:
- lang: eng
  text: "The quantum approximate optimization algorithm (QAOA) uses a quantum computer\r\nto
    implement a variational method with $2p$ layers of alternating unitary\r\noperators,
    optimized by a classical computer to minimize a cost function. While\r\nrigorous
    performance guarantees exist for the QAOA at small depths $p$, the\r\nbehavior
    at large depths remains less clear, though simulations suggest\r\nexponentially
    fast convergence for certain problems. In this work, we gain\r\ninsights into
    the deep QAOA using an analytic expansion of the cost function\r\naround transition
    states. Transition states are constructed in a recursive\r\nmanner: from the local
    minima of the QAOA with $p$ layers we obtain transition\r\nstates of the QAOA
    with $p+1$ layers, which are stationary points characterized\r\nby a unique direction
    of negative curvature. We construct an analytic estimate\r\nof the negative curvature
    and the corresponding direction in parameter space at\r\neach transition state.
    The expansion of the QAOA cost function along the\r\nnegative direction to the
    quartic order gives a lower bound of the QAOA cost\r\nfunction improvement. We
    provide physical intuition behind the analytic\r\nexpressions for the local curvature
    and quartic expansion coefficient. Our\r\nnumerical study confirms the accuracy
    of our approximations and reveals that\r\nthe obtained bound and the true value
    of the QAOA cost function gain have a\r\ncharacteristic exponential decrease with
    the number of layers $p$, with the\r\nbound decreasing more rapidly. Our study
    establishes an analytical method for\r\nrecursively studying the QAOA that is
    applicable in the regime of high circuit\r\ndepth."
article_number: '2405.10125'
article_processing_charge: No
arxiv: 1
author:
- first_name: Raimel A
  full_name: Medina Ramos, Raimel A
  id: CE680B90-D85A-11E9-B684-C920E6697425
  last_name: Medina Ramos
  orcid: 0000-0002-5383-2869
- first_name: Maksym
  full_name: Serbyn, Maksym
  id: 47809E7E-F248-11E8-B48F-1D18A9856A87
  last_name: Serbyn
  orcid: 0000-0002-2399-5827
citation:
  ama: Medina Ramos RA, Serbyn M. A recursive lower bound on the energy improvement
    of the quantum approximate optimization algorithm. <i>arXiv</i>. doi:<a href="https://doi.org/10.48550/arXiv.2405.10125">10.48550/arXiv.2405.10125</a>
  apa: Medina Ramos, R. A., &#38; Serbyn, M. (n.d.). A recursive lower bound on the
    energy improvement of the quantum approximate optimization algorithm. <i>arXiv</i>.
    <a href="https://doi.org/10.48550/arXiv.2405.10125">https://doi.org/10.48550/arXiv.2405.10125</a>
  chicago: Medina Ramos, Raimel A, and Maksym Serbyn. “A Recursive Lower Bound on
    the Energy Improvement of the Quantum Approximate Optimization Algorithm.” <i>ArXiv</i>,
    n.d. <a href="https://doi.org/10.48550/arXiv.2405.10125">https://doi.org/10.48550/arXiv.2405.10125</a>.
  ieee: R. A. Medina Ramos and M. Serbyn, “A recursive lower bound on the energy improvement
    of the quantum approximate optimization algorithm,” <i>arXiv</i>. .
  ista: Medina Ramos RA, Serbyn M. A recursive lower bound on the energy improvement
    of the quantum approximate optimization algorithm. arXiv, 2405.10125.
  mla: Medina Ramos, Raimel A., and Maksym Serbyn. “A Recursive Lower Bound on the
    Energy Improvement of the Quantum Approximate Optimization Algorithm.” <i>ArXiv</i>,
    2405.10125, doi:<a href="https://doi.org/10.48550/arXiv.2405.10125">10.48550/arXiv.2405.10125</a>.
  short: R.A. Medina Ramos, M. Serbyn, ArXiv (n.d.).
corr_author: '1'
date_created: 2024-07-10T13:12:09Z
date_published: 2024-05-16T00:00:00Z
date_updated: 2026-04-07T12:43:22Z
day: '16'
department:
- _id: MaSe
doi: 10.48550/arXiv.2405.10125
external_id:
  arxiv:
  - '2405.10125'
fulldoi: https://doi.org/10.48550/arXiv.2405.10125
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.48550/arXiv.2405.10125
month: '05'
oa: 1
oa_version: Preprint
publication: arXiv
publication_status: draft
related_material:
  record:
  - id: '17208'
    relation: dissertation_contains
    status: public
status: public
title: A recursive lower bound on the energy improvement of the quantum approximate
  optimization algorithm
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: preprint
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2024'
...
