--- _id: '7622' abstract: - lang: eng text: The International Young Physicists' Tournament (IYPT) continued in 2018 in Beijing, China and 2019 in Warsaw, Poland with its 31st and 32nd editions. The IYPT is a modern scientific competition for teams of high school students, also known as the Physics World Cup. It involves long-term theoretical and experimental work focused on solving 17 publicly announced open-ended problems in teams of five. On top of that, teams have to present their solutions in front of other teams and a scientific jury, and get opposed and reviewed by their peers. Here we present a brief information about the competition with a specific focus on one of the IYPT 2018 tasks, the 'Ring Oiler'. This seemingly simple mechanical problem appeared to be of such a complexity that even the dozens of participating teams and jurying scientists were not able to solve all of its subtleties. article_number: '034001' article_processing_charge: No article_type: original author: - first_name: Martin full_name: Plesch, Martin last_name: Plesch - first_name: Samuel full_name: Plesník, Samuel last_name: Plesník - first_name: Natalia full_name: Ruzickova, Natalia id: D2761128-D73D-11E9-A1BF-BA0DE6697425 last_name: Ruzickova citation: ama: Plesch M, Plesník S, Ruzickova N. The IYPT and the “Ring Oiler” problem. European Journal of Physics. 2020;41(3). doi:10.1088/1361-6404/ab6414 apa: Plesch, M., Plesník, S., & Ruzickova, N. (2020). The IYPT and the “Ring Oiler” problem. European Journal of Physics. IOP Publishing. https://doi.org/10.1088/1361-6404/ab6414 chicago: Plesch, Martin, Samuel Plesník, and Natalia Ruzickova. “The IYPT and the ‘Ring Oiler’ Problem.” European Journal of Physics. IOP Publishing, 2020. https://doi.org/10.1088/1361-6404/ab6414. ieee: M. Plesch, S. Plesník, and N. Ruzickova, “The IYPT and the ‘Ring Oiler’ problem,” European Journal of Physics, vol. 41, no. 3. IOP Publishing, 2020. ista: Plesch M, Plesník S, Ruzickova N. 2020. The IYPT and the ‘Ring Oiler’ problem. European Journal of Physics. 41(3), 034001. mla: Plesch, Martin, et al. “The IYPT and the ‘Ring Oiler’ Problem.” European Journal of Physics, vol. 41, no. 3, 034001, IOP Publishing, 2020, doi:10.1088/1361-6404/ab6414. short: M. Plesch, S. Plesník, N. Ruzickova, European Journal of Physics 41 (2020). date_created: 2020-03-31T11:25:04Z date_published: 2020-02-24T00:00:00Z date_updated: 2023-08-18T10:18:29Z day: '24' ddc: - '530' department: - _id: FyKo doi: 10.1088/1361-6404/ab6414 external_id: arxiv: - '1910.03290' isi: - '000537425400001' file: - access_level: open_access checksum: 47dda164e33b6c0c6c3ed14aad298376 content_type: application/pdf creator: dernst date_created: 2020-04-06T08:53:53Z date_updated: 2020-07-14T12:48:01Z file_id: '7641' file_name: 2020_EuropJourPhysics_Plesch.pdf file_size: 1533672 relation: main_file file_date_updated: 2020-07-14T12:48:01Z has_accepted_license: '1' intvolume: ' 41' isi: 1 issue: '3' language: - iso: eng month: '02' oa: 1 oa_version: Published Version publication: European Journal of Physics publication_identifier: eissn: - '13616404' issn: - '01430807' publication_status: published publisher: IOP Publishing quality_controlled: '1' scopus_import: '1' status: public title: The IYPT and the 'Ring Oiler' problem 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: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 41 year: '2020' ... --- _id: '7623' abstract: - lang: eng text: A two-dimensional mathematical model for cells migrating without adhesion capabilities is presented and analyzed. Cells are represented by their cortex, which is modeled as an elastic curve, subject to an internal pressure force. Net polymerization or depolymerization in the cortex is modeled via local addition or removal of material, driving a cortical flow. The model takes the form of a fully nonlinear degenerate parabolic system. An existence analysis is carried out by adapting ideas from the theory of gradient flows. Numerical simulations show that these simple rules can account for the behavior observed in experiments, suggesting a possible mechanical mechanism for adhesion-independent motility. acknowledgement: This work has been supported by the Vienna Science and Technology Fund, Grant no. LS13-029. G.J. and C.S. also acknowledge support by the Austrian Science Fund, Grants no. W1245, F 65, and W1261, as well as by the Fondation Sciences Mathématiques de Paris, and by Paris-Sciences-et-Lettres. article_processing_charge: No article_type: original author: - first_name: Gaspard full_name: Jankowiak, Gaspard last_name: Jankowiak - first_name: Diane full_name: Peurichard, Diane last_name: Peurichard - first_name: Anne full_name: Reversat, Anne id: 35B76592-F248-11E8-B48F-1D18A9856A87 last_name: Reversat orcid: 0000-0003-0666-8928 - first_name: Christian full_name: Schmeiser, Christian last_name: Schmeiser - first_name: Michael K full_name: Sixt, Michael K id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87 last_name: Sixt orcid: 0000-0002-6620-9179 citation: ama: Jankowiak G, Peurichard D, Reversat A, Schmeiser C, Sixt MK. Modeling adhesion-independent cell migration. Mathematical Models and Methods in Applied Sciences. 2020;30(3):513-537. doi:10.1142/S021820252050013X apa: Jankowiak, G., Peurichard, D., Reversat, A., Schmeiser, C., & Sixt, M. K. (2020). Modeling adhesion-independent cell migration. Mathematical Models and Methods in Applied Sciences. World Scientific. https://doi.org/10.1142/S021820252050013X chicago: Jankowiak, Gaspard, Diane Peurichard, Anne Reversat, Christian Schmeiser, and Michael K Sixt. “Modeling Adhesion-Independent Cell Migration.” Mathematical Models and Methods in Applied Sciences. World Scientific, 2020. https://doi.org/10.1142/S021820252050013X. ieee: G. Jankowiak, D. Peurichard, A. Reversat, C. Schmeiser, and M. K. Sixt, “Modeling adhesion-independent cell migration,” Mathematical Models and Methods in Applied Sciences, vol. 30, no. 3. World Scientific, pp. 513–537, 2020. ista: Jankowiak G, Peurichard D, Reversat A, Schmeiser C, Sixt MK. 2020. Modeling adhesion-independent cell migration. Mathematical Models and Methods in Applied Sciences. 30(3), 513–537. mla: Jankowiak, Gaspard, et al. “Modeling Adhesion-Independent Cell Migration.” Mathematical Models and Methods in Applied Sciences, vol. 30, no. 3, World Scientific, 2020, pp. 513–37, doi:10.1142/S021820252050013X. short: G. Jankowiak, D. Peurichard, A. Reversat, C. Schmeiser, M.K. Sixt, Mathematical Models and Methods in Applied Sciences 30 (2020) 513–537. date_created: 2020-03-31T11:25:05Z date_published: 2020-03-18T00:00:00Z date_updated: 2023-08-18T10:18:56Z day: '18' department: - _id: MiSi doi: 10.1142/S021820252050013X external_id: arxiv: - '1903.09426' isi: - '000525349900003' intvolume: ' 30' isi: 1 issue: '3' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1903.09426 month: '03' oa: 1 oa_version: Preprint page: 513-537 project: - _id: 25AD6156-B435-11E9-9278-68D0E5697425 grant_number: LS13-029 name: Modeling of Polarization and Motility of Leukocytes in Three-Dimensional Environments publication: Mathematical Models and Methods in Applied Sciences publication_identifier: issn: - '02182025' publication_status: published publisher: World Scientific quality_controlled: '1' scopus_import: '1' status: public title: Modeling adhesion-independent cell migration type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 30 year: '2020' ... --- _id: '7646' abstract: - lang: eng text: In plant cells, environmental stressors promote changes in connectivity between the cortical ER and the PM. Although this process is tightly regulated in space and time, the molecular signals and structural components mediating these changes in inter-organelle communication are only starting to be characterized. In this report, we confirm the presence of a putative tethering complex containing the synaptotagmins 1 and 5 (SYT1 and SYT5) and the Ca2+ and lipid binding protein 1 (CLB1/SYT7). This complex is enriched at ER-PM contact sites (EPCS), have slow responses to changes in extracellular Ca2+, and display severe cytoskeleton-dependent rearrangements in response to the trivalent lanthanum (La3+) and gadolinium (Gd3+) rare earth elements (REEs). Although REEs are generally used as non-selective cation channel blockers at the PM, here we show that the slow internalization of REEs into the cytosol underlies the activation of the Ca2+/Calmodulin intracellular signaling, the accumulation of phosphatidylinositol-4-phosphate (PI4P) at the PM, and the cytoskeleton-dependent rearrangement of the SYT1/SYT5 EPCS complexes. We propose that the observed EPCS rearrangements act as a slow adaptive response to sustained stress conditions, and that this process involves the accumulation of stress-specific phosphoinositides species at the PM. article_processing_charge: No article_type: original author: - first_name: E full_name: Lee, E last_name: Lee - first_name: B full_name: Vila Nova Santana, B last_name: Vila Nova Santana - first_name: E full_name: Samuels, E last_name: Samuels - first_name: F full_name: Benitez-Fuente, F last_name: Benitez-Fuente - first_name: E full_name: Corsi, E last_name: Corsi - first_name: MA full_name: Botella, MA last_name: Botella - first_name: J full_name: Perez-Sancho, J last_name: Perez-Sancho - first_name: S full_name: Vanneste, S last_name: Vanneste - first_name: Jiří full_name: Friml, Jiří id: 4159519E-F248-11E8-B48F-1D18A9856A87 last_name: Friml orcid: 0000-0002-8302-7596 - first_name: A full_name: Macho, A last_name: Macho - first_name: A full_name: Alves Azevedo, A last_name: Alves Azevedo - first_name: A full_name: Rosado, A last_name: Rosado citation: ama: Lee E, Vila Nova Santana B, Samuels E, et al. Rare earth elements induce cytoskeleton-dependent and PI4P-associated rearrangement of SYT1/SYT5 ER-PM contact site complexes in Arabidopsis. Journal of Experimental Botany. 2020;71(14):3986–3998. doi:10.1093/jxb/eraa138 apa: Lee, E., Vila Nova Santana, B., Samuels, E., Benitez-Fuente, F., Corsi, E., Botella, M., … Rosado, A. (2020). Rare earth elements induce cytoskeleton-dependent and PI4P-associated rearrangement of SYT1/SYT5 ER-PM contact site complexes in Arabidopsis. Journal of Experimental Botany. Oxford University Press. https://doi.org/10.1093/jxb/eraa138 chicago: Lee, E, B Vila Nova Santana, E Samuels, F Benitez-Fuente, E Corsi, MA Botella, J Perez-Sancho, et al. “Rare Earth Elements Induce Cytoskeleton-Dependent and PI4P-Associated Rearrangement of SYT1/SYT5 ER-PM Contact Site Complexes in Arabidopsis.” Journal of Experimental Botany. Oxford University Press, 2020. https://doi.org/10.1093/jxb/eraa138. ieee: E. Lee et al., “Rare earth elements induce cytoskeleton-dependent and PI4P-associated rearrangement of SYT1/SYT5 ER-PM contact site complexes in Arabidopsis,” Journal of Experimental Botany, vol. 71, no. 14. Oxford University Press, pp. 3986–3998, 2020. ista: Lee E, Vila Nova Santana B, Samuels E, Benitez-Fuente F, Corsi E, Botella M, Perez-Sancho J, Vanneste S, Friml J, Macho A, Alves Azevedo A, Rosado A. 2020. Rare earth elements induce cytoskeleton-dependent and PI4P-associated rearrangement of SYT1/SYT5 ER-PM contact site complexes in Arabidopsis. Journal of Experimental Botany. 71(14), 3986–3998. mla: Lee, E., et al. “Rare Earth Elements Induce Cytoskeleton-Dependent and PI4P-Associated Rearrangement of SYT1/SYT5 ER-PM Contact Site Complexes in Arabidopsis.” Journal of Experimental Botany, vol. 71, no. 14, Oxford University Press, 2020, pp. 3986–3998, doi:10.1093/jxb/eraa138. short: E. Lee, B. Vila Nova Santana, E. Samuels, F. Benitez-Fuente, E. Corsi, M. Botella, J. Perez-Sancho, S. Vanneste, J. Friml, A. Macho, A. Alves Azevedo, A. Rosado, Journal of Experimental Botany 71 (2020) 3986–3998. date_created: 2020-04-06T10:57:08Z date_published: 2020-07-06T00:00:00Z date_updated: 2023-08-18T10:27:52Z day: '06' ddc: - '580' department: - _id: JiFr doi: 10.1093/jxb/eraa138 external_id: isi: - '000553125400007' pmid: - '32179893' file: - access_level: open_access checksum: b06aaaa93dc41896da805fe4b75cf3a1 content_type: application/pdf creator: dernst date_created: 2020-10-06T07:41:35Z date_updated: 2020-10-06T07:41:35Z file_id: '8613' file_name: 2020_JourExperimBotany_Lee.pdf file_size: 1916031 relation: main_file success: 1 file_date_updated: 2020-10-06T07:41:35Z has_accepted_license: '1' intvolume: ' 71' isi: 1 issue: '14' language: - iso: eng month: '07' oa: 1 oa_version: Published Version page: 3986–3998 pmid: 1 publication: Journal of Experimental Botany publication_identifier: eissn: - 1460-2431 issn: - 0022-0957 publication_status: published publisher: Oxford University Press quality_controlled: '1' status: public title: Rare earth elements induce cytoskeleton-dependent and PI4P-associated rearrangement of SYT1/SYT5 ER-PM contact site complexes in Arabidopsis 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: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 71 year: '2020' ... --- _id: '7656' abstract: - lang: eng text: 'We propose that correlations among neurons are generically strong enough to organize neural activity patterns into a discrete set of clusters, which can each be viewed as a population codeword. Our reasoning starts with the analysis of retinal ganglion cell data using maximum entropy models, showing that the population is robustly in a frustrated, marginally sub-critical, or glassy, state. This leads to an argument that neural populations in many other brain areas might share this structure. Next, we use latent variable models to show that this glassy state possesses well-defined clusters of neural activity. Clusters have three appealing properties: (i) clusters exhibit error correction, i.e., they are reproducibly elicited by the same stimulus despite variability at the level of constituent neurons; (ii) clusters encode qualitatively different visual features than their constituent neurons; and (iii) clusters can be learned by downstream neural circuits in an unsupervised fashion. We hypothesize that these properties give rise to a “learnable” neural code which the cortical hierarchy uses to extract increasingly complex features without supervision or reinforcement.' article_number: '20' article_processing_charge: No article_type: original author: - first_name: Michael J. full_name: Berry, Michael J. last_name: Berry - first_name: Gašper full_name: Tkačik, Gašper id: 3D494DCA-F248-11E8-B48F-1D18A9856A87 last_name: Tkačik orcid: 0000-0002-6699-1455 citation: ama: 'Berry MJ, Tkačik G. Clustering of neural activity: A design principle for population codes. Frontiers in Computational Neuroscience. 2020;14. doi:10.3389/fncom.2020.00020' apa: 'Berry, M. J., & Tkačik, G. (2020). Clustering of neural activity: A design principle for population codes. Frontiers in Computational Neuroscience. Frontiers. https://doi.org/10.3389/fncom.2020.00020' chicago: 'Berry, Michael J., and Gašper Tkačik. “Clustering of Neural Activity: A Design Principle for Population Codes.” Frontiers in Computational Neuroscience. Frontiers, 2020. https://doi.org/10.3389/fncom.2020.00020.' ieee: 'M. J. Berry and G. Tkačik, “Clustering of neural activity: A design principle for population codes,” Frontiers in Computational Neuroscience, vol. 14. Frontiers, 2020.' ista: 'Berry MJ, Tkačik G. 2020. Clustering of neural activity: A design principle for population codes. Frontiers in Computational Neuroscience. 14, 20.' mla: 'Berry, Michael J., and Gašper Tkačik. “Clustering of Neural Activity: A Design Principle for Population Codes.” Frontiers in Computational Neuroscience, vol. 14, 20, Frontiers, 2020, doi:10.3389/fncom.2020.00020.' short: M.J. Berry, G. Tkačik, Frontiers in Computational Neuroscience 14 (2020). date_created: 2020-04-12T22:00:40Z date_published: 2020-03-13T00:00:00Z date_updated: 2023-08-18T10:30:11Z day: '13' ddc: - '570' department: - _id: GaTk doi: 10.3389/fncom.2020.00020 external_id: isi: - '000525543200001' pmid: - '32231528' file: - access_level: open_access checksum: 2b1da23823eae9cedbb42d701945b61e content_type: application/pdf creator: dernst date_created: 2020-04-14T12:20:39Z date_updated: 2020-07-14T12:48:01Z file_id: '7659' file_name: 2020_Frontiers_Berry.pdf file_size: 4082937 relation: main_file file_date_updated: 2020-07-14T12:48:01Z has_accepted_license: '1' intvolume: ' 14' isi: 1 language: - iso: eng month: '03' oa: 1 oa_version: Published Version pmid: 1 publication: Frontiers in Computational Neuroscience publication_identifier: eissn: - '16625188' publication_status: published publisher: Frontiers quality_controlled: '1' scopus_import: '1' status: public title: 'Clustering of neural activity: A design principle for population codes' 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: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 14 year: '2020' ... --- _id: '7638' abstract: - lang: eng text: Following on from our recent work, we investigate a stochastic approach to non-equilibrium quantum spin systems. We show how the method can be applied to a variety of physical observables and for different initial conditions. We provide exact formulae of broad applicability for the time-dependence of expectation values and correlation functions following a quantum quench in terms of averages over classical stochastic processes. We further explore the behavior of the classical stochastic variables in the presence of dynamical quantum phase transitions, including results for their distributions and correlation functions. We provide details on the numerical solution of the associated stochastic differential equations, and examine the growth of fluctuations in the classical description. We discuss the strengths and limitations of the current implementation of the stochastic approach and the potential for further development. article_number: '013106' article_processing_charge: No article_type: original author: - first_name: Stefano full_name: De Nicola, Stefano id: 42832B76-F248-11E8-B48F-1D18A9856A87 last_name: De Nicola orcid: 0000-0002-4842-6671 - first_name: B. full_name: Doyon, B. last_name: Doyon - first_name: M. J. full_name: Bhaseen, M. J. last_name: Bhaseen citation: ama: 'De Nicola S, Doyon B, Bhaseen MJ. Non-equilibrium quantum spin dynamics from classical stochastic processes. Journal of Statistical Mechanics: Theory and Experiment. 2020;2020(1). doi:10.1088/1742-5468/ab6093' apa: 'De Nicola, S., Doyon, B., & Bhaseen, M. J. (2020). Non-equilibrium quantum spin dynamics from classical stochastic processes. Journal of Statistical Mechanics: Theory and Experiment. IOP Publishing. https://doi.org/10.1088/1742-5468/ab6093' chicago: 'De Nicola, Stefano, B. Doyon, and M. J. Bhaseen. “Non-Equilibrium Quantum Spin Dynamics from Classical Stochastic Processes.” Journal of Statistical Mechanics: Theory and Experiment. IOP Publishing, 2020. https://doi.org/10.1088/1742-5468/ab6093.' ieee: 'S. De Nicola, B. Doyon, and M. J. Bhaseen, “Non-equilibrium quantum spin dynamics from classical stochastic processes,” Journal of Statistical Mechanics: Theory and Experiment, vol. 2020, no. 1. IOP Publishing, 2020.' ista: 'De Nicola S, Doyon B, Bhaseen MJ. 2020. Non-equilibrium quantum spin dynamics from classical stochastic processes. Journal of Statistical Mechanics: Theory and Experiment. 2020(1), 013106.' mla: 'De Nicola, Stefano, et al. “Non-Equilibrium Quantum Spin Dynamics from Classical Stochastic Processes.” Journal of Statistical Mechanics: Theory and Experiment, vol. 2020, no. 1, 013106, IOP Publishing, 2020, doi:10.1088/1742-5468/ab6093.' short: 'S. De Nicola, B. Doyon, M.J. Bhaseen, Journal of Statistical Mechanics: Theory and Experiment 2020 (2020).' date_created: 2020-04-05T22:00:50Z date_published: 2020-01-22T00:00:00Z date_updated: 2023-08-18T10:27:15Z day: '22' ddc: - '530' department: - _id: MaSe doi: 10.1088/1742-5468/ab6093 ec_funded: 1 external_id: arxiv: - '1909.13142' isi: - '000520187500001' file: - access_level: open_access checksum: 4030e683c15d30b7b4794ec7dc1b6537 content_type: application/pdf creator: dernst date_created: 2020-04-06T13:15:49Z date_updated: 2020-07-14T12:48:01Z file_id: '7648' file_name: 2020_JournStatisticalMech_DeNicola.pdf file_size: 3159026 relation: main_file file_date_updated: 2020-07-14T12:48:01Z has_accepted_license: '1' intvolume: ' 2020' isi: 1 issue: '1' language: - iso: eng month: '01' oa: 1 oa_version: Published Version project: - _id: 260C2330-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '754411' name: ISTplus - Postdoctoral Fellowships - _id: B67AFEDC-15C9-11EA-A837-991A96BB2854 name: IST Austria Open Access Fund publication: 'Journal of Statistical Mechanics: Theory and Experiment' publication_identifier: eissn: - '17425468' publication_status: published publisher: IOP Publishing quality_controlled: '1' scopus_import: '1' status: public title: Non-equilibrium quantum spin dynamics from classical stochastic processes type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 2020 year: '2020' ... --- _id: '7637' abstract: - lang: eng text: The evolution of finitely many particles obeying Langevin dynamics is described by Dean–Kawasaki equations, a class of stochastic equations featuring a non-Lipschitz multiplicative noise in divergence form. We derive a regularised Dean–Kawasaki model based on second order Langevin dynamics by analysing a system of particles interacting via a pairwise potential. Key tools of our analysis are the propagation of chaos and Simon's compactness criterion. The model we obtain is a small-noise stochastic perturbation of the undamped McKean–Vlasov equation. We also provide a high-probability result for existence and uniqueness for our model. article_processing_charge: No article_type: original author: - first_name: Federico full_name: Cornalba, Federico id: 2CEB641C-A400-11E9-A717-D712E6697425 last_name: Cornalba orcid: 0000-0002-6269-5149 - first_name: Tony full_name: Shardlow, Tony last_name: Shardlow - first_name: Johannes full_name: Zimmer, Johannes last_name: Zimmer citation: ama: Cornalba F, Shardlow T, Zimmer J. From weakly interacting particles to a regularised Dean-Kawasaki model. Nonlinearity. 2020;33(2):864-891. doi:10.1088/1361-6544/ab5174 apa: Cornalba, F., Shardlow, T., & Zimmer, J. (2020). From weakly interacting particles to a regularised Dean-Kawasaki model. Nonlinearity. IOP Publishing. https://doi.org/10.1088/1361-6544/ab5174 chicago: Cornalba, Federico, Tony Shardlow, and Johannes Zimmer. “From Weakly Interacting Particles to a Regularised Dean-Kawasaki Model.” Nonlinearity. IOP Publishing, 2020. https://doi.org/10.1088/1361-6544/ab5174. ieee: F. Cornalba, T. Shardlow, and J. Zimmer, “From weakly interacting particles to a regularised Dean-Kawasaki model,” Nonlinearity, vol. 33, no. 2. IOP Publishing, pp. 864–891, 2020. ista: Cornalba F, Shardlow T, Zimmer J. 2020. From weakly interacting particles to a regularised Dean-Kawasaki model. Nonlinearity. 33(2), 864–891. mla: Cornalba, Federico, et al. “From Weakly Interacting Particles to a Regularised Dean-Kawasaki Model.” Nonlinearity, vol. 33, no. 2, IOP Publishing, 2020, pp. 864–91, doi:10.1088/1361-6544/ab5174. short: F. Cornalba, T. Shardlow, J. Zimmer, Nonlinearity 33 (2020) 864–891. date_created: 2020-04-05T22:00:49Z date_published: 2020-01-10T00:00:00Z date_updated: 2023-08-18T10:26:07Z day: '10' department: - _id: JuFi doi: 10.1088/1361-6544/ab5174 external_id: arxiv: - '1811.06448' isi: - '000508175400001' intvolume: ' 33' isi: 1 issue: '2' language: - iso: eng main_file_link: - open_access: '1' url: https://arxiv.org/abs/1811.06448 month: '01' oa: 1 oa_version: Preprint page: 864-891 publication: Nonlinearity publication_identifier: eissn: - '13616544' issn: - '09517715' publication_status: published publisher: IOP Publishing quality_controlled: '1' scopus_import: '1' status: public title: From weakly interacting particles to a regularised Dean-Kawasaki model type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 33 year: '2020' ... --- _id: '7664' abstract: - lang: eng text: Metabotropic γ-aminobutyric acid (GABAB) receptors contribute to the control of network activity and information processing in hippocampal circuits by regulating neuronal excitability and synaptic transmission. The dysfunction in the dentate gyrus (DG) has been implicated in Alzheimer´s disease (AD). Given the involvement of GABAB receptors in AD, to determine their subcellular localisation and possible alteration in granule cells of the DG in a mouse model of AD at 12 months of age, we used high-resolution immunoelectron microscopic analysis. Immunohistochemistry at the light microscopic level showed that the regional and cellular expression pattern of GABAB1 was similar in an AD model mouse expressing mutated human amyloid precursor protein and presenilin1 (APP/PS1) and in age-matched wild type mice. High-resolution immunoelectron microscopy revealed a distance-dependent gradient of immunolabelling for GABAB receptors, increasing from proximal to distal dendrites in both wild type and APP/PS1 mice. However, the overall density of GABAB receptors at the neuronal surface of these postsynaptic compartments of granule cells was significantly reduced in APP/PS1 mice. Parallel to this reduction in surface receptors, we found a significant increase in GABAB1 at cytoplasmic sites. GABAB receptors were also detected at presynaptic sites in the molecular layer of the DG. We also found a decrease in plasma membrane GABAB receptors in axon terminals contacting dendritic spines of granule cells, which was more pronounced in the outer than in the inner molecular layer. Altogether, our data showing post- and presynaptic reduction in surface GABAB receptors in the DG suggest the alteration of the GABAB-mediated modulation of excitability and synaptic transmission in granule cells, which may contribute to the cognitive dysfunctions in the APP/PS1 model of AD article_number: '2459' article_processing_charge: No article_type: original author: - first_name: Alejandro full_name: Martín-Belmonte, Alejandro last_name: Martín-Belmonte - first_name: Carolina full_name: Aguado, Carolina last_name: Aguado - first_name: Rocío full_name: Alfaro-Ruíz, Rocío last_name: Alfaro-Ruíz - first_name: Ana Esther full_name: Moreno-Martínez, Ana Esther last_name: Moreno-Martínez - first_name: Luis full_name: De La Ossa, Luis last_name: De La Ossa - first_name: José full_name: Martínez-Hernández, José last_name: Martínez-Hernández - first_name: Alain full_name: Buisson, Alain last_name: Buisson - first_name: Ryuichi full_name: Shigemoto, Ryuichi id: 499F3ABC-F248-11E8-B48F-1D18A9856A87 last_name: Shigemoto orcid: 0000-0001-8761-9444 - first_name: Yugo full_name: Fukazawa, Yugo last_name: Fukazawa - first_name: Rafael full_name: Luján, Rafael last_name: Luján citation: ama: Martín-Belmonte A, Aguado C, Alfaro-Ruíz R, et al. Density of GABAB receptors is reduced in granule cells of the hippocampus in a mouse model of Alzheimer’s disease. International journal of molecular sciences. 2020;21(7). doi:10.3390/ijms21072459 apa: Martín-Belmonte, A., Aguado, C., Alfaro-Ruíz, R., Moreno-Martínez, A. E., De La Ossa, L., Martínez-Hernández, J., … Luján, R. (2020). Density of GABAB receptors is reduced in granule cells of the hippocampus in a mouse model of Alzheimer’s disease. International Journal of Molecular Sciences. MDPI. https://doi.org/10.3390/ijms21072459 chicago: Martín-Belmonte, Alejandro, Carolina Aguado, Rocío Alfaro-Ruíz, Ana Esther Moreno-Martínez, Luis De La Ossa, José Martínez-Hernández, Alain Buisson, Ryuichi Shigemoto, Yugo Fukazawa, and Rafael Luján. “Density of GABAB Receptors Is Reduced in Granule Cells of the Hippocampus in a Mouse Model of Alzheimer’s Disease.” International Journal of Molecular Sciences. MDPI, 2020. https://doi.org/10.3390/ijms21072459. ieee: A. Martín-Belmonte et al., “Density of GABAB receptors is reduced in granule cells of the hippocampus in a mouse model of Alzheimer’s disease,” International journal of molecular sciences, vol. 21, no. 7. MDPI, 2020. ista: Martín-Belmonte A, Aguado C, Alfaro-Ruíz R, Moreno-Martínez AE, De La Ossa L, Martínez-Hernández J, Buisson A, Shigemoto R, Fukazawa Y, Luján R. 2020. Density of GABAB receptors is reduced in granule cells of the hippocampus in a mouse model of Alzheimer’s disease. International journal of molecular sciences. 21(7), 2459. mla: Martín-Belmonte, Alejandro, et al. “Density of GABAB Receptors Is Reduced in Granule Cells of the Hippocampus in a Mouse Model of Alzheimer’s Disease.” International Journal of Molecular Sciences, vol. 21, no. 7, 2459, MDPI, 2020, doi:10.3390/ijms21072459. short: A. Martín-Belmonte, C. Aguado, R. Alfaro-Ruíz, A.E. Moreno-Martínez, L. De La Ossa, J. Martínez-Hernández, A. Buisson, R. Shigemoto, Y. Fukazawa, R. Luján, International Journal of Molecular Sciences 21 (2020). date_created: 2020-04-19T22:00:55Z date_published: 2020-04-02T00:00:00Z date_updated: 2023-08-21T06:13:19Z day: '02' ddc: - '570' department: - _id: RySh doi: 10.3390/ijms21072459 external_id: isi: - '000535574200201' pmid: - '32252271' file: - access_level: open_access checksum: b9d2f1657d8c4a74b01a62b474d009b0 content_type: application/pdf creator: dernst date_created: 2020-04-20T11:43:18Z date_updated: 2020-07-14T12:48:01Z file_id: '7669' file_name: 2020_JournMolecSciences_Martin_Belmonte.pdf file_size: 2941197 relation: main_file file_date_updated: 2020-07-14T12:48:01Z has_accepted_license: '1' intvolume: ' 21' isi: 1 issue: '7' language: - iso: eng month: '04' oa: 1 oa_version: Published Version pmid: 1 publication: International journal of molecular sciences publication_identifier: eissn: - '14220067' publication_status: published publisher: MDPI quality_controlled: '1' scopus_import: '1' status: public title: Density of GABAB receptors is reduced in granule cells of the hippocampus in a mouse model of Alzheimer's disease 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: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 21 year: '2020' ... --- _id: '7665' abstract: - lang: eng text: Acute brain slice preparation is a powerful experimental model for investigating the characteristics of synaptic function in the brain. Although brain tissue is usually cut at ice-cold temperature (CT) to facilitate slicing and avoid neuronal damage, exposure to CT causes molecular and architectural changes of synapses. To address these issues, we investigated ultrastructural and electrophysiological features of synapses in mouse acute cerebellar slices prepared at ice-cold and physiological temperature (PT). In the slices prepared at CT, we found significant spine loss and reconstruction, synaptic vesicle rearrangement and decrease in synaptic proteins, all of which were not detected in slices prepared at PT. Consistent with these structural findings, slices prepared at PT showed higher release probability. Furthermore, preparation at PT allows electrophysiological recording immediately after slicing resulting in higher detectability of long-term depression (LTD) after motor learning compared with that at CT. These results indicate substantial advantages of the slice preparation at PT for investigating synaptic functions in different physiological conditions. article_number: '63' article_processing_charge: Yes (via OA deal) article_type: original author: - first_name: Kohgaku full_name: Eguchi, Kohgaku id: 2B7846DC-F248-11E8-B48F-1D18A9856A87 last_name: Eguchi orcid: 0000-0002-6170-2546 - first_name: Philipp full_name: Velicky, Philipp id: 39BDC62C-F248-11E8-B48F-1D18A9856A87 last_name: Velicky orcid: 0000-0002-2340-7431 - first_name: Elena full_name: Hollergschwandtner, Elena id: 3C054040-F248-11E8-B48F-1D18A9856A87 last_name: Hollergschwandtner - first_name: Makoto full_name: Itakura, Makoto last_name: Itakura - first_name: Yugo full_name: Fukazawa, Yugo last_name: Fukazawa - first_name: Johann G full_name: Danzl, Johann G id: 42EFD3B6-F248-11E8-B48F-1D18A9856A87 last_name: Danzl orcid: 0000-0001-8559-3973 - first_name: Ryuichi full_name: Shigemoto, Ryuichi id: 499F3ABC-F248-11E8-B48F-1D18A9856A87 last_name: Shigemoto orcid: 0000-0001-8761-9444 citation: ama: Eguchi K, Velicky P, Saeckl E, et al. Advantages of acute brain slices prepared at physiological temperature in the characterization of synaptic functions. Frontiers in Cellular Neuroscience. 2020;14. doi:10.3389/fncel.2020.00063 apa: Eguchi, K., Velicky, P., Saeckl, E., Itakura, M., Fukazawa, Y., Danzl, J. G., & Shigemoto, R. (2020). Advantages of acute brain slices prepared at physiological temperature in the characterization of synaptic functions. Frontiers in Cellular Neuroscience. Frontiers Media. https://doi.org/10.3389/fncel.2020.00063 chicago: Eguchi, Kohgaku, Philipp Velicky, Elena Saeckl, Makoto Itakura, Yugo Fukazawa, Johann G Danzl, and Ryuichi Shigemoto. “Advantages of Acute Brain Slices Prepared at Physiological Temperature in the Characterization of Synaptic Functions.” Frontiers in Cellular Neuroscience. Frontiers Media, 2020. https://doi.org/10.3389/fncel.2020.00063. ieee: K. Eguchi et al., “Advantages of acute brain slices prepared at physiological temperature in the characterization of synaptic functions,” Frontiers in Cellular Neuroscience, vol. 14. Frontiers Media, 2020. ista: Eguchi K, Velicky P, Saeckl E, Itakura M, Fukazawa Y, Danzl JG, Shigemoto R. 2020. Advantages of acute brain slices prepared at physiological temperature in the characterization of synaptic functions. Frontiers in Cellular Neuroscience. 14, 63. mla: Eguchi, Kohgaku, et al. “Advantages of Acute Brain Slices Prepared at Physiological Temperature in the Characterization of Synaptic Functions.” Frontiers in Cellular Neuroscience, vol. 14, 63, Frontiers Media, 2020, doi:10.3389/fncel.2020.00063. short: K. Eguchi, P. Velicky, E. Saeckl, M. Itakura, Y. Fukazawa, J.G. Danzl, R. Shigemoto, Frontiers in Cellular Neuroscience 14 (2020). date_created: 2020-04-19T22:00:55Z date_published: 2020-03-19T00:00:00Z date_updated: 2023-08-21T06:12:48Z day: '19' ddc: - '570' department: - _id: JoDa - _id: RySh doi: 10.3389/fncel.2020.00063 ec_funded: 1 external_id: isi: - '000525582200001' file: - access_level: open_access checksum: 1c145123c6f8dc3e2e4bd5a66a1ad60e content_type: application/pdf creator: dernst date_created: 2020-04-20T10:59:49Z date_updated: 2020-07-14T12:48:01Z file_id: '7668' file_name: 2020_FrontiersCellularNeurosc_Eguchi.pdf file_size: 9227283 relation: main_file file_date_updated: 2020-07-14T12:48:01Z has_accepted_license: '1' intvolume: ' 14' isi: 1 language: - iso: eng month: '03' oa: 1 oa_version: Published Version project: - _id: 2659CC84-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '793482' name: 'Ultrastructural analysis of phosphoinositides in nerve terminals: distribution, dynamics and physiological roles in synaptic transmission' - _id: 25CA28EA-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '694539' name: 'In situ analysis of single channel subunit composition in neurons: physiological implication in synaptic plasticity and behaviour' - _id: 265CB4D0-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: I03600 name: Optical control of synaptic function via adhesion molecules - _id: B67AFEDC-15C9-11EA-A837-991A96BB2854 name: IST Austria Open Access Fund publication: Frontiers in Cellular Neuroscience publication_identifier: issn: - '16625102' publication_status: published publisher: Frontiers Media quality_controlled: '1' scopus_import: '1' status: public title: Advantages of acute brain slices prepared at physiological temperature in the characterization of synaptic functions 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: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 14 year: '2020' ... --- _id: '7663' abstract: - lang: eng text: Wood, as the most abundant carbon dioxide storing bioresource, is currently driven beyond its traditional use through creative innovations and nanotechnology. For many properties the micro- and nanostructure plays a crucial role and one key challenge is control and detection of chemical and physical processes in the confined microstructure and nanopores of the wooden cell wall. In this study, correlative Raman and atomic force microscopy show high potential for tracking in situ molecular rearrangement of wood polymers during compression. More water molecules (interpreted as wider cellulose microfibril distances) and disentangling of hemicellulose chains are detected in the opened cell wall regions, whereas an increase of lignin is revealed in the compressed areas. These results support a new more “loose” cell wall model based on flexible lignin nanodomains and advance our knowledge of the molecular reorganization during deformation of wood for optimized processing and utilization. article_processing_charge: No article_type: original author: - first_name: Martin full_name: Felhofer, Martin last_name: Felhofer - first_name: Peter full_name: Bock, Peter last_name: Bock - first_name: Adya full_name: Singh, Adya last_name: Singh - first_name: Batirtze full_name: Prats Mateu, Batirtze id: 299FE892-F248-11E8-B48F-1D18A9856A87 last_name: Prats Mateu - first_name: Ronald full_name: Zirbs, Ronald last_name: Zirbs - first_name: Notburga full_name: Gierlinger, Notburga last_name: Gierlinger citation: ama: Felhofer M, Bock P, Singh A, Prats Mateu B, Zirbs R, Gierlinger N. Wood deformation leads to rearrangement of molecules at the nanoscale. Nano Letters. 2020;20(4):2647-2653. doi:10.1021/acs.nanolett.0c00205 apa: Felhofer, M., Bock, P., Singh, A., Prats Mateu, B., Zirbs, R., & Gierlinger, N. (2020). Wood deformation leads to rearrangement of molecules at the nanoscale. Nano Letters. American Chemical Society. https://doi.org/10.1021/acs.nanolett.0c00205 chicago: Felhofer, Martin, Peter Bock, Adya Singh, Batirtze Prats Mateu, Ronald Zirbs, and Notburga Gierlinger. “Wood Deformation Leads to Rearrangement of Molecules at the Nanoscale.” Nano Letters. American Chemical Society, 2020. https://doi.org/10.1021/acs.nanolett.0c00205. ieee: M. Felhofer, P. Bock, A. Singh, B. Prats Mateu, R. Zirbs, and N. Gierlinger, “Wood deformation leads to rearrangement of molecules at the nanoscale,” Nano Letters, vol. 20, no. 4. American Chemical Society, pp. 2647–2653, 2020. ista: Felhofer M, Bock P, Singh A, Prats Mateu B, Zirbs R, Gierlinger N. 2020. Wood deformation leads to rearrangement of molecules at the nanoscale. Nano Letters. 20(4), 2647–2653. mla: Felhofer, Martin, et al. “Wood Deformation Leads to Rearrangement of Molecules at the Nanoscale.” Nano Letters, vol. 20, no. 4, American Chemical Society, 2020, pp. 2647–53, doi:10.1021/acs.nanolett.0c00205. short: M. Felhofer, P. Bock, A. Singh, B. Prats Mateu, R. Zirbs, N. Gierlinger, Nano Letters 20 (2020) 2647–2653. date_created: 2020-04-19T22:00:54Z date_published: 2020-04-08T00:00:00Z date_updated: 2023-08-21T06:12:09Z day: '08' ddc: - '530' department: - _id: MaLo doi: 10.1021/acs.nanolett.0c00205 external_id: isi: - '000526413400055' pmid: - '32196350' file: - access_level: open_access checksum: fe46146a9c4c620592a1932a8599069e content_type: application/pdf creator: dernst date_created: 2020-04-20T10:43:36Z date_updated: 2020-07-14T12:48:01Z file_id: '7667' file_name: 2020_NanoLetters_Felhofer.pdf file_size: 7108014 relation: main_file file_date_updated: 2020-07-14T12:48:01Z has_accepted_license: '1' intvolume: ' 20' isi: 1 issue: '4' language: - iso: eng month: '04' oa: 1 oa_version: Published Version page: 2647-2653 pmid: 1 publication: Nano Letters publication_identifier: eissn: - '15306992' publication_status: published publisher: American Chemical Society quality_controlled: '1' scopus_import: '1' status: public title: Wood deformation leads to rearrangement of molecules at the nanoscale 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: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 20 year: '2020' ... --- _id: '7666' abstract: - lang: eng text: Generalizing the decomposition of a connected planar graph into a tree and a dual tree, we prove a combinatorial analog of the classic Helmholtz–Hodge decomposition of a smooth vector field. Specifically, we show that for every polyhedral complex, K, and every dimension, p, there is a partition of the set of p-cells into a maximal p-tree, a maximal p-cotree, and a collection of p-cells whose cardinality is the p-th reduced Betti number of K. Given an ordering of the p-cells, this tri-partition is unique, and it can be computed by a matrix reduction algorithm that also constructs canonical bases of cycle and boundary groups. acknowledgement: This project has received funding from the European Research Council under the European Union’s Horizon 2020 research and innovation programme (Grant Agreement No. 78818 Alpha). It is also partially supported by the DFG Collaborative Research Center TRR 109, ‘Discretization in Geometry and Dynamics’, through Grant No. I02979-N35 of the Austrian Science Fund (FWF). article_processing_charge: Yes (via OA deal) article_type: original author: - first_name: Herbert full_name: Edelsbrunner, Herbert id: 3FB178DA-F248-11E8-B48F-1D18A9856A87 last_name: Edelsbrunner orcid: 0000-0002-9823-6833 - first_name: Katharina full_name: Ölsböck, Katharina id: 4D4AA390-F248-11E8-B48F-1D18A9856A87 last_name: Ölsböck orcid: 0000-0002-4672-8297 citation: ama: Edelsbrunner H, Ölsböck K. Tri-partitions and bases of an ordered complex. Discrete and Computational Geometry. 2020;64:759-775. doi:10.1007/s00454-020-00188-x apa: Edelsbrunner, H., & Ölsböck, K. (2020). Tri-partitions and bases of an ordered complex. Discrete and Computational Geometry. Springer Nature. https://doi.org/10.1007/s00454-020-00188-x chicago: Edelsbrunner, Herbert, and Katharina Ölsböck. “Tri-Partitions and Bases of an Ordered Complex.” Discrete and Computational Geometry. Springer Nature, 2020. https://doi.org/10.1007/s00454-020-00188-x. ieee: H. Edelsbrunner and K. Ölsböck, “Tri-partitions and bases of an ordered complex,” Discrete and Computational Geometry, vol. 64. Springer Nature, pp. 759–775, 2020. ista: Edelsbrunner H, Ölsböck K. 2020. Tri-partitions and bases of an ordered complex. Discrete and Computational Geometry. 64, 759–775. mla: Edelsbrunner, Herbert, and Katharina Ölsböck. “Tri-Partitions and Bases of an Ordered Complex.” Discrete and Computational Geometry, vol. 64, Springer Nature, 2020, pp. 759–75, doi:10.1007/s00454-020-00188-x. short: H. Edelsbrunner, K. Ölsböck, Discrete and Computational Geometry 64 (2020) 759–775. date_created: 2020-04-19T22:00:56Z date_published: 2020-03-20T00:00:00Z date_updated: 2023-08-21T06:13:48Z day: '20' ddc: - '510' department: - _id: HeEd doi: 10.1007/s00454-020-00188-x ec_funded: 1 external_id: isi: - '000520918800001' file: - access_level: open_access checksum: f8cc96e497f00c38340b5dafe0cb91d7 content_type: application/pdf creator: dernst date_created: 2020-11-20T13:22:21Z date_updated: 2020-11-20T13:22:21Z file_id: '8786' file_name: 2020_DiscreteCompGeo_Edelsbrunner.pdf file_size: 701673 relation: main_file success: 1 file_date_updated: 2020-11-20T13:22:21Z has_accepted_license: '1' intvolume: ' 64' isi: 1 language: - iso: eng month: '03' oa: 1 oa_version: Published Version page: 759-775 project: - _id: B67AFEDC-15C9-11EA-A837-991A96BB2854 name: IST Austria Open Access Fund - _id: 266A2E9E-B435-11E9-9278-68D0E5697425 call_identifier: H2020 grant_number: '788183' name: Alpha Shape Theory Extended - _id: 2561EBF4-B435-11E9-9278-68D0E5697425 call_identifier: FWF grant_number: I02979-N35 name: Persistence and stability of geometric complexes publication: Discrete and Computational Geometry publication_identifier: eissn: - '14320444' issn: - '01795376' publication_status: published publisher: Springer Nature quality_controlled: '1' scopus_import: '1' status: public title: Tri-partitions and bases of an ordered complex 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: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 64 year: '2020' ...