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818 results for “Neutrality”
Life‐stage‐dependent supergene haplotype frequencies and metapopulation neutral genetic patterns of Atlantic cod, Gadus morhua, from Canada's Northern cod stock region and adjacent areas
<p class="BodyA">Among highly migratory fish species, nursery areas occupied by juveniles often differ from adult habitats. To better understand the spatial dynamics of Canada's Northern cod stock, juveniles caught off the east coast of Newfoundland and Labrador were compared to adults from the same region as well as individuals from other areas in Atlantic Canada using ddRAD-derived SNPs. A reduced proportion of homozygotes with a chromosomal inversion located in LG1 was detected between juvenile and adult samples in the Northern cod stock region, potentially indicating age-dependent habitat use or ontogenetic selection for attributes associated with the many genes located in LG1. No neutral genetic differences were found between samples from the Northern cod stock; however, significant differences were found between some of these samples and cod collected from St. Pierre Bank, Bay of Fundy, Browns Bank and the southern Scotian Shelf. Clustering analysis of variants at neutral loci provided evidence for three major genetic units: 1) the Newfoundland Atlantic Coast, 2) eastern and southern Gulf of St. Lawrence and Burgeo Bank, and 3) the Bay of Fundy, Browns Bank and southern Scotian Shelf. Both adaptive and neutral population structure within the Northern cod stock should be considered by managers to promote rebuilding.</p>
Weak coupling among barrier loci and waves of neutral and adaptive introgression across an expanding hybrid zone
<p>Hybridization can serve as an evolutionary stimulus, but we have little understanding of introgression at early stages of hybrid zone formation. We analyze reproductive isolation and introgression between a range-limited and a widespread species. Reproductive barriers are estimated based on differences in flowering time, ecogeographic distributions, and seed set from crosses. We find an asymmetrical mating barrier due to cytonuclear incompatibility that is consistent with observed clusters of coincident and concordant tension zone clines (barrier loci) for mtDNA haplotypes and nuclear SNPs. These groups of concordant clines are spread across the hybrid zone, resulting in weak coupling among barrier loci and extensive introgression. Neutral clines had nearly equal introgression into both species' ranges, while putative cases of adaptive introgression had exceptionally wide clines with centers shifted towards one species. Analyses of cline shape indicate that secondary contact was initiated within the last 800 generations with the per-generation dispersal between 200 and 400 meters, and provide some of the first estimates of the strength of selection required to account for observed levels of adaptive introgression. The weak species boundary between these species appears to be in early stages of dissolution, and ultimately will precipitate genetic swamping of the range-limited species.</p>
Strengthened PM2.5 air quality improvement and health benefits by synergies of carbon peak, carbon neutrality, and clean air policies in China
<p>Dataset and code used in this research: (1) emission, major air pollutants (i.e., SO2, NOx, PM25, NMVOCs, NH3), and CO2 emissions during 2020-2060 under the scenario ensembles (i.e., reference, clean air, on-time peak-clean air, on-time peak-net zero-clean air, early peak-net zero-clean air). (2) PM2.5 exposure (NetCDF, 0.1×0.1), future PM2.5 concentrations (2025, 2030, 2035, 2040, 2045, 2050, 2055, 2060) under the scenario ensembles, re-gridded from the corresponding CMAQ simulations. (3) population, future population grid under the SSP1 scenario, re-gridded from SSP Datasets (<a href="http://clima-dods.ictp.it/Users/fcolon_g/ISI-MIP/">http://clima</a><a href="http://clima-dods.ictp.it/Users/fcolon_g/ISI-MIP/">-</a><a href="http://clima-dods.ictp.it/Users/fcolon_g/ISI-MIP/">dods.ictp.it/Users/fcolon_g/ISI</a><a href="http://clima-dods.ictp.it/Users/fcolon_g/ISI-MIP/">-</a><a href="http://clima-dods.ictp.it/Users/fcolon_g/ISI-MIP/">MIP/</a>). (4) death, PM2.5-related premature deaths (2025, 2030, 2035, 2040, 2045, 2050, 2055, 2060) under the scenario ensembles. (5) code for premature death calculation, with the method of GBD2019. (6) code for re-grid PM2.5 concentrations from CMAQ output.</p>
Temperature of the neutral CGM around high-redshift galaxies
<p>Gas in galaxy halos is the result of an interplay between the AGN/stellar outflows and the inflows from intergalactic medium. Observational constraints on the CGM properties provide a clue for the cosmological simulations and shed a light on the feedback mechanisms, which are responsible for the baryonic cycle and determine the CGM energy distribution. Due to the complex nature of CGM, understanding of the feedback processes requires a comprehensive study of the halo gas in hot ionized as well as warm and cold neutral phases. Unfortunately, in contrast with a cold and ionized gas, estimation of the temperature of warm phase is a difficult task. This can be overcome using the analysis of the absorption lines imprinted onto quasar spectra (Noterdaeme et al. 2021). We present such measurements of the warm CGM temperature, based on a sample of Damped Lyman-alpha systems in high-resolution high-redshift (z~2) VLT/UVES spectra. We show that warm neutral circum-galactic gas demonstrates a huge variety of estimated temperatures, which in some cases exceed the canonical Galactic value of ~10 000 K generally assumed in thermal balance models.</p> <p>Noterdaeme et al., A&A 651, A78 (2021)</p>
Thermospheric neutral wind and temperature over Cachoeira Paulista
<p>The data sets are observations of thermospheric neutral winds and temperatures which can be used to study the dynamics of low latitude ionosphere in Brazil. The data have been organized by Dr Jonas R. Souza (jonas.souza@inpe.br) from National Institute for Space Research - INPE.</p>
Inferring neutral winds in the ionospheric transition region from AGW-TID observations with the EISCAT VHF radar and the Nordic Meteor Radar Cluster
<p>[Dataset] Inferring neutral winds in the ionospheric transition region from AGW-TID observations with the EISCAT VHF radar and the Nordic Meteor Radar Cluster</p>
Bicelle size and lipid/surfactant ratio screening - Gwalp tail anchor dimer simulation - 80 Lipids - q0.38 - PBS neutralized - CHARMM36m - 310K - OPC water model
<p>Bicelle size and lipid to surfactant ratio screening to investigate the influence on spin relaxation data with monomers of a given peptide.</p>
Empty micelle - 60 SDS - Na neutralized - CHARMM36m - 293K - OPC water model - replica 2 - every 100 fs
<p>Empty micelle simulation to investigate the effect of water model and peptide on SRD. Use of a higher saving frequency in order to investigate the existence of faster timescales in the relaxation data. Start frame being the end frame from "Empty micelle - 60 SDS - q0.38 - PBS neutralized - CHARMM36m - 293K - OPC water model - replica 0"</p>
Bicelle size and lipid/surfactant ratio screening - Gwalp tail anchor dimer simulation - 60 Lipids - q0.38 - PBS neutralized - CHARMM36m - 310K - OPC water model
<p>Bicelle size and lipid to surfactant ratio screening to investigate the influence on spin relaxation data with monomers of a given peptide.</p>
Empty micelle - 60 SDS - Na neutralized - CHARMM36m - 293K - OPC water model - replica 0 - every 100 fs
<p>Empty micelle simulation to investigate the effect of water model and peptide on SRD. Use of a higher saving frequency in order to investigate the existence of faster timescales in the relaxation data. Start frame being the first frame from "Empty micelle - 60 SDS - q0.38 - PBS neutralized - CHARMM36m - 293K - OPC water model - replica 0"</p>
Empty micelle - 60 SDS - Na neutralized - CHARMM36m - 293K - OPC water model - replica 1 - every 100 fs
<p>Empty micelle simulation to investigate the effect of water model and peptide on SRD. Use of a higher saving frequency in order to investigate the existence of faster timescales in the relaxation data. Start frame being the middle frame from "Empty micelle - 60 SDS - q0.38 - PBS neutralized - CHARMM36m - 293K - OPC water model - replica 0"</p>
Micelle size screening - Gwalp tail anchor dimer simulation - 45 SDS - Na neutralized - CHARMM36m - 310K - OPC water model
<p>Micelle size screening by varying the amount of SDS to investigate the influence on spin relaxation data with dimers of a given peptide.</p>
Bicelle size and lipid/surfactant ratio screening - Magaining 2 tail anchor monomer simulation - 80 Lipids - q0.38 - PBS neutralized - CHARMM36m - 310K - OPC water model
<p>Bicelle size and lipid to surfactant ratio screening to investigate the influence on spin relaxation data with monomers of a given peptide.</p>
Bicelle size and lipid/surfactant ratio screening - Magaining 2 tail anchor monomer simulation - 60 Lipids - q0.38 - PBS neutralized - CHARMM36m - 310K - OPC water model
<p>Bicelle size and lipid to surfactant ratio screening to investigate the influence on spin relaxation data with monomers of a given peptide.</p>
Bicelle size and lipid/surfactant ratio screening - Magaining 2 tail anchor monomer simulation - 120 Lipids - q0.5 - PBS neutralized - CHARMM36m - 310K - TIP3P water model
<p>Bicelle size and lipid to surfactant ratio screening to investigate the influence on spin relaxation data with monomers of a given peptide. Special iteration to investigate the influence of the water model</p>
Bicelle size and lipid/surfactant ratio screening - Gwalp tail anchor monomer simulation - 80 Lipids - q0.38 - PBS neutralized - CHARMM36m - 310K - OPC water model
<p>Bicelle size and lipid to surfactant ratio screening to investigate the influence on spin relaxation data with monomers of a given peptide.</p>
Bicelle size and lipid/surfactant ratio screening - Gwalp tail anchor monomer simulation - 120 Lipids - q0.38 - PBS neutralized - CHARMM36m - 310K - OPC water model
<p>Bicelle size and lipid to surfactant ratio screening to investigate the influence on spin relaxation data with monomers of a given peptide.</p>
Bicelle size and lipid/surfactant ratio screening - Gwalp tail anchor monomer simulation - 60 Lipids - q0.42 - PBS neutralized - CHARMM36m - 310K - OPC water model
<p>Bicelle size and lipid to surfactant ratio screening to investigate the influence on spin relaxation data with monomers of a given peptide. Reduced saved frequency could not be generated and no-water was directly generated by hand and added here.</p>
Bicelle size and lipid/surfactant ratio screening - Gwalp tail anchor monomer simulation - 60 Lipids - q0.38 - PBS neutralized - CHARMM36m - 310K - OPC water model
<p>Bicelle size and lipid to surfactant ratio screening to investigate the influence on spin relaxation data with monomers of a given peptide.</p>
Bicelle size and lipid/surfactant ratio screening - Gwalp tail anchor monomer simulation - 120 Lipids - q0.33 - PBS neutralized - CHARMM36m - 310K - OPC water model
<p>Bicelle size and lipid to surfactant ratio screening to investigate the influence on spin relaxation data with monomers of a given peptide.</p>
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
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.
International Brain Laboratory public data
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.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.