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11,506 results for “Dynamics”
Dataset for Hohls et al "Controlling the error mechanism in a tunable-barrier non-adiabatic charge pump by dynamic gate compensation"
<p>Dataset for Hohls et al "Controlling the error mechanism in a tunable-barrier non-adiabatic charge pump by dynamic gate compensation", <a href="https://arxiv.org/abs/2112.10713">https://arxiv.org/abs/2112.10713</a></p>
Mesoscale cortex-wide neural dynamics predict self-initiated actions in mice several seconds prior to movement
<p>Volition - the sense of control or agency over one's voluntary actions - is widely recognized as the basis of both human subjective experience and natural behavior in non-human animals. To date, several human studies have found peaks in neural activity preceding voluntary actions, e.g. the readiness potential (RP), and some have shown upcoming actions could be decoded even before awareness. While these findings may pose a challenge to traditional accounts of human volition, some have proposed that random processes underlie and explain pre-movement neural activity. Here we seek to address part of this controversy by evaluating whether pre-movement neural activity in mice contains structure beyond that present in random neural activity. Implementing a self-initiated water-rewarded lever pull paradigm in mice while recording widefield [Ca++] neural activity we find that cortical activity changes in variance seconds prior to movement and that upcoming lever pulls or spontaneous body movements could be predicted between 1 second to more than 10 seconds prior to movement, similar to but even earlier than in human studies. We show that mice, like humans, are biased towards initiation of voluntary actions during specific phases of neural activity oscillations but that the pre-movement neural code in mice changes over time and is widely distributed as behavior prediction improved when using all vs single cortical areas. These findings support the presence of structured multi-second neural dynamics preceding voluntary action beyond that expected from random processes. Our results also suggest that neural mechanisms underlying self-initiated voluntary action could be preserved between mice and humans.</p>
FIGURE 50 in Global Nepticulidae, Opostegidae, and Tischeriidae (Lepidoptera): temporal dynamics of species descriptions and their authors
FIGURE 50. Species description dynamics of the three analyzed families (Nepticulidae, Opostegidae, and Tischeriidae) over various time periods.
FIGURES 37–42 in Global Nepticulidae, Opostegidae, and Tischeriidae (Lepidoptera): temporal dynamics of species descriptions and their authors
FIGURES 37–42. Leaf mines of the earliest discovered species from Nepticulidae and Tischeriidae. 37–40, Ectoedemia occultella (Linnaeus, 1767), Nepticulidae, leaf mines on Betula pendula; 41, 42, Tischeria ekebladella (Bjerkander, 1795), Tischeriidae, leaf mines on Quercus robur (Note: leaf mines of Pseudopostega auritella (Hübner, 1813), the earliest discovered species of Opostegidae, are still unknown and host-plant data are doubtful; see Johansson et al. 1990)
FIGURES 22–33. Tischeriidae, trumpet moths. 22, 23 in Global Nepticulidae, Opostegidae, and Tischeriidae (Lepidoptera): temporal dynamics of species descriptions and their authors
FIGURES 22–33. Tischeriidae, trumpet moths. 22, 23 adults of Astrotischeria chilei Puplesis & Diškus, 2003, Chile (Stonis et al., 2016a); 24, adult of A. trilobata Diškus & Stonis, Bolivia; 25, leaf mine of A. plagifera (Meyrick, 1915) on Rhysolepis, Ecuador (Stonis et al. 2018a); 26, same, A. ochrimaculosa Diškus, Stonis & Vargas, 2019, on Wissadula, Bolivia (Stonis et al., 2019a); 27, same, A. selvica Diškus, Carvalho-Filho & Stonis on Synedrella (Stonis et al. 2018a); 28, male genitalia, lateral view, Coptotriche carmencita Stonis & Diškus, Peru; 29, same, C. parvisacculata Diškus & Stonis, Argentina (Stonis et al. 2019a); 30, same, ventral view, genital capsule, Astrotischeria chilei Puplesis & Diškus, 2003, Chile (Stonis et al., 2016a); 31, same, A. heliopsisella (Chambers, 1875), California, USA (Stonis et al. 2018a); 32, same, phallus, A. chilei Puplesis & Diškus, 2003, Chile (Stonis et al., 2016a); 33, same, Coptotriche confusa (Braun, 1972), California, USA (Stonis et al. 2020d)
FIGURE 49 in Global Nepticulidae, Opostegidae, and Tischeriidae (Lepidoptera): temporal dynamics of species descriptions and their authors
FIGURE 49. Contribution of individual researchers to the discovery and description of the three analyzed families (Nepticulidae, Opostegidae, and Tischeriidae) (Note: graph includes only researchers who described at least 10 new species)
FIGURES 45, 46 in Global Nepticulidae, Opostegidae, and Tischeriidae (Lepidoptera): temporal dynamics of species descriptions and their authors
FIGURES 45, 46. Description of the global Opostegidae. 45, authors or groups of authors who described new species; 46, Individual contributions by researchers to descriptions
FIGURES 34, 35 in Global Nepticulidae, Opostegidae, and Tischeriidae (Lepidoptera): temporal dynamics of species descriptions and their authors
FIGURES 34, 35. Dynamics of species descriptions during various time periods. 34, Nepticulidae; 35, Opostegidae
FIGURE 44 in Global Nepticulidae, Opostegidae, and Tischeriidae (Lepidoptera): temporal dynamics of species descriptions and their authors
FIGURE 44. Individual researchers who contributed the most to discovery and description of the Nepticulidae global fauna. (Note: graph does not include researchers who described fewer than five new species
FIGURE 48 in Global Nepticulidae, Opostegidae, and Tischeriidae (Lepidoptera): temporal dynamics of species descriptions and their authors
FIGURE 48. Contribution of individual researchers to the discovery and description of global Tischeriidae
FIGURE 43 in Global Nepticulidae, Opostegidae, and Tischeriidae (Lepidoptera): temporal dynamics of species descriptions and their authors
FIGURE 43. Authors or groups of authors who made a significant contribution to the description of global fauna of Nepticulidae and described at least five new species
FIGURES 1–14. Nepticulidae, pygmy moths. 1 in Global Nepticulidae, Opostegidae, and Tischeriidae (Lepidoptera): temporal dynamics of species descriptions and their authors
FIGURES 1–14. Nepticulidae, pygmy moths. 1, leaf mine of Stigmella decora Diškus & Stonis on Rhynchotheca, Ecuador; 2, same, S. apicibrunella Diškus & Stonis on Acalypha, Ecuador (Stonis et al. 2017b); 3, same, S. baccharicola Diškus & Stonis on Baccharis, Ecuador (Stonis et al. 2016b); 4, adult of S. podanthae Diškus & Stonis, Chile (Stonis et al. 2016a); 5, same, S. apicibrunella Diškus & Stonis, Ecuador; 6, same, S. decora Diškus & Stonis, Ecuador (Stonis et al. 2017b); 7, same, Acalyptris minimus Diškus & Stonis, Ecuador (Stonis et al. 2018e); 8, same, Manoneura trinaria Puplesis & Robinson, Venezuela (Stonis et al. 2018d); 9, 10, male genitalia of S. apicibrunella Diškus & Stonis, Ecuador (Stonis et al. 2017b); 11, 12, same, Manoneura forcipis Remeikis & Stonis, Peru (Stonis et al. 2017a); 13, 14, same, S. decora Diškus & Stonis, Ecuador (Stonis et al. 2017b)
FIGURES 15–21 in Global Nepticulidae, Opostegidae, and Tischeriidae (Lepidoptera): temporal dynamics of species descriptions and their authors
FIGURES 15–21. Opostegidae, white eye-cap moths. 15, adult of Pseudopostega sacculata (Meyrick, 1915), Peru; 16, same, P. spinosa Stonis & Diškus, Ecuador; 17, same, Neopostega dondavisi Stonis & Remeikis, Peru (Stonis et al. 2020e); 18, same, Pseudopostega matrona Karsholt & Remeikis, Turkey (Stonis et al. 2021g); 19, same, P. cucullata Stonis & Vargas, Colombia (Stonis et al. 2020e); 20, male genitalia of P. matrona Karsholt & Remeikis, Turkey (Stonis et al. 2021g); 21, same, P. apotoma Davis & Stonis, 2007, Peru (Stonis et al. 2020e)
Transmission Dynamics of COVID-19 Disease among household contacts in Delhi, India (SARS CoV-2 HT Study)
<p>Results from households in the MAMC Delhi FFX Unity study </p>
Data from: Southern range dynamics of Canada lynx over seven decades
<p>The range of the Canada lynx (<i>Lynx canadensis</i>) has contracted substantially from its historical range. Using harvest records, we found that the southern range of the lynx in Ontario in the late 1940s collapsed and then, in a short period of time, increased to its largest extent in the mid-1960s when the lynx range spread south of the boreal forest for a decade. After this expansion the southern range contracted northwards beginning in the 1970s. Most recently, there has been a slight expansion between 2010-2017. We have attributed these dynamics on the southern range periphery to the fluctuation of the boreal lynx population in the core of the species' range. In addition, connectivity to boreal lynx populations and snow depth seemed to condition whether the lynx expanded into an area. However, we did not find any evidence to suggest that these changes were due to anthropogenic disturbances or competition. The boreal lynx population does not reach the peak abundance it once did, without which we would not expect to see large expansions of the southern lynx range as in the mid-1960s. Our results suggest that southern lynx range in Ontario have been driven by the magnitude of the boreal lynx population cycle, connectivity to the boreal forest, and snow conditions. Therefore, it is quite unlikely that southern lynx population in the Great Lakes will recover, since the warming climate and habitat changes are causing a northward contraction of the boreal forest and likely with it the core lynx populations.</p>
Unsupervised Multiple-Object Tracking with a Dynamical Variational Autoencoder
<p>This is the public dataset of synthetic trajectories and MOT17-3T, which is used in paper <a href="https://arxiv.org/abs/2202.09315">Unsupervised Multiple-Object Tracking with a Dynamical Variational Autoencoder</a>. The source code can be found <a href="https://gitlab.inria.fr/xilin/dvae-umot-release">here</a>.</p>
Stability of a Mixed-Valence Hydrous Iron-Rich Oxide: Implications for Water Storage and Dynamics in the Deep Lower Mantle
<p>The XRD datasets in Figure 1, Figure2A, Figure2B, Figure4A, Figure4B, Figure6A, and Figure6B.</p>
A dynamic multicellularity emerges for collective invasion within opisthokonta
<p>Raw data used for the quantification of the Fonticula Collective behaviours : https://github.com/apicco/Fonticula_collective_invasion</p>
Coping with seasonality: dynamics of adult body mass and survival in an alpine hibernator
<p><span>Alpine mammals are highly vulnerable to current and projected climate change because they are confined to a certain elevation range. Physiological and behavioural adaptations in burrowing species, such as finding shelter in burrows when the summer conditions are unfavorable and hibernating in winter during the stressful period of resource shortage, could partly buffer the negative impacts of these forecasted changes. We studied the links between environmental factors and annual variations in adult mass and survival over 14 years in hoary marmots. We hypothesized that annual variation in seasonal environmental factors determines individual mass and survival through direct effects on food quality and availability, expecting greater survival when marmots reach higher mass before hibernation. We found that harsh winters decreased mass at emergence from hibernation by 47% compared with mild winters. Nonetheless, adult marmots had a greater mass gain in summers following harsh winters and reached a similar mass at the end of the summer compared with summers following mild winters. This result suggests individuals can adopt a resource allocation strategy that allows maximizing summer mass gain to survive hibernation. Earlier springs also increased summer mass gain by 15 g/day, and tended to increase apparent adult survival by 23%, compared with late springs. While these findings suggest a warming climate could have positive effects on summer mass gain and survival, survival also tended to decrease by 24% in summers with more precipitation. This result suggests the forecasted changes in precipitation extremes could also trigger considerable</span><span> </span><span>negative effects on the demography of burrowing species in the long term. Our study shows</span><span> </span><span>that, although burrowing and hibernating behaviours could buffer responses to</span><span> </span><span>environmental changes, these behaviours are not an indefectible shield against climate</span><span> </span><span>change.</span></p>
Gradient-dynamics model for liquid drops on elastic substrates
<p>Data sets corresponding to the results shown in "Gradient-dynamics model for liquid drops on elastic substrates".<br> Additionally, the scripts the plots were produced with.</p>
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
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The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
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