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7,378 results for “case”
Data from: Sulfur isotopic discrimination factors differ among avian tissues and diets: Insights from a case study in Gentoo Penguins (Pygoscelis papua)
<p>The use of stable isotopes of sulfur (δ<sup>34</sup>S) to infer avian diets, foraging habitats, and movements is relatively uncommon, resulting in a lack of information on patterns of δ<sup>34</sup>S incorporation in avian tissue. In a controlled study of Gentoo Penguins (<em>Pygoscelis</em> <em>papua</em>), we found that diet-tissue isotopic discrimination factors (Δ<sup>34</sup>S<sub>diet-tissue</sub>) differed among egg components and feathers synthesized from a common diet, ranging from -0.4 to -1.7 ‰. We also found that methodical choices such as lipid extraction and prey tissue selection influenced calculated Δ<sup>34</sup>S<sub>diet-tissue</sub> values. Specifically, Δ<sup>34</sup>S<sub>diet-tissue</sub> values were lower (i.e., more negative) when calculated using whole fish relative to fish muscle and lipid-extraction biased egg yolk, but not fish tissue, δ<sup>34</sup>S values. Δ<sup>34</sup>S<sub>diet-tissue</sub> values obtained for Gentoo Penguins fed a marine fish diet were generally lower than those reported for freshwater-fish-consuming Double-crested Cormorants (<em>Phalacrocorax</em> <em>auritus</em>), the only other bird species in which Δ<sup>34</sup>S<sub>diet-tissue</sub> has been quantified. We found support for the hypothesis that tissue Δ<sup>34</sup>S<sub>diet-tissue</sub> values are inversely related to dietary δ<sup>34</sup>S values in birds, similar to what has been observed in mammals. Given<span> this relationship, the discrimination factors reported here for </span>Gentoo Penguins <span>may be broadly applicable to other avian species with a similar marine diet.</span> Finally, we provide recommendations for future studies seeking to quantify Δ<sup>34</sup>S<sub>diet-tissue</sub> in avian tissues and guidance to allow for greater application of sulfur stable isotope analysis in ornithological research.</p>
Data from: The role of niche breadth in oak phylogeography: Quercus glaucoides as a study case
<p>The amount of genetic diversity and its distribution among populations has been associated to species' attributes such as mating system, dispersal ability and geographic range size. Another attribute that could contribute to explain intraspecific phylogeographic patterns is niche breadth, but this relationship barely has been tested. Here, we studied a Mexican oak (<em>Quercus</em> <em>glaucoides</em>) with a comparatively narrow climatic niche breadth. Genetic diversity and structure were assessed, as well as historical demography dynamics and connectivity. Then, we tested for a general correlation of genetic diversity and structure with niche breadth, using our data and previous results from other co-distributed Mexican oaks with variable niche breadths.</p> <p><strong>Methods</strong></p> <p>Descriptors of genetic diversity and structure were obtained from 21 <em>Q. glaucoides</em> populations using chloroplast DNA (cpDNA) and nuclear microsatellites (nSSRs). Historical demography dynamics were inferred with approximate Bayesian computation (ABC) and past potential distribution models. To test for an association between niche breadth and phylogeographic patterns, we used genetic diversity and differentiation values of <em>Q. glaucoides</em> plus those previously published for other ten species. Niche breadth was estimated for all species and linear regressions were performed.</p> <p><strong>Results</strong></p> <p>Genetic diversity calculated from nSSRs (<em>H</em><sub>O</sub>= 0.539; <em>H</em><sub>E</sub>= 0.714) was among the lowest, and cpDNA differentiation (<em>N</em><sub>ST</sub>= 0.88) was the highest so far obtained for comparable Mexican oaks. Moderate changes in demographic size and distribution shifts throughout the last glacial cycle were inferred, explaining some of the observed genetic patterns. A positive correlation of <em>H</em><sub>O</sub> and a negative correlation of <em>N</em><sub>ST</sub> with niche breadth were detected across species. </p> <p><strong>Main conclusions</strong></p> <p>Distinct phylogeographic patterns in <em>Q. glaucoides</em> could be explained because a narrower niche may cause lower historical effective population sizes and more fragmented distributions in comparison to species with a wider niche breadth, even with similar range sizes.</p>
Cloudnet products and VOODOO enhancements for a case study of multilayer mixed-phase cloud in Punta Arena Chile
<p>This data set contains the Cloudnet and VOODOO enhanced products from observations during the the long-term ground-based remote-sensing field experiment Dynamics, Aerosol, Cloud and Precipitation Observations in the Pristine Environment of the Southern Ocean (DACAPO-PESO) in Punta Arenas, Chile.<em> </em></p>
Case study result data set for Energy Systems (submitted) article "Influence of hydrogen import prices on hydropower systems in climate-neutral Europe"
<p>The data set contains result data for the European system in a long term climate-neutral European energy system (scenario year 2050) as described in the publication "Influence of hydrogen import prices on hydropower systems in climate-neutral Europe". The results have been generated with the model SCOPE SD of Fraunhofer Institute for Energy Economics and Energy System Technology IEE. </p> <p><strong>Abbreviations:</strong></p> <ul> <li>BEV - Battery Electric Vehicles</li> <li>CCGT - Combined Cycle Gas Turbine</li> <li>CHP - Combined heat and power</li> <li>con - consumption</li> <li>gen - generation</li> <li>HighCLEQ - High import prices / clustered-equivalent hydropower units</li> <li>HighEQ - High import prices / equivalent hydropower units</li> <li>LowCLEQ - Low import prices / clustered-equivalent hydropower units</li> <li>LowEQ - Low import prices / equivalent hydropower units</li> <li>MedCLEQ - Medium import prices / clustered-equivalent hydropower units</li> <li>MedEQ - Medium import prices / equivalent hydropower units</li> <li>OCGT - Open Cycle Gas Turbine</li> <li>PHEV - Plug-In Hybrid Vehicles</li> <li>PS - Pumped Storage</li> <li>w/ - with</li> <li>w/o - without</li> <li>yr - year</li> </ul>
Incorporating pyrodiversity into wildlife habitat assessments for rapid post-fire management: A woodpecker case study
<p>Spatial and temporal variation in fire characteristics – termed pyrodiversity – are increasingly recognized as important factors that structure wildlife communities in fire-prone ecosystems, yet there have been few attempts to incorporate pyrodiversity or post-fire habitat dynamics into predictive models of animal distributions and abundance to support post-fire management. We use the black-backed woodpecker – a species associated with burned forests – as a case study to demonstrate a pathway for incorporating pyrodiversity into wildlife habitat assessments for adaptive management. Employing monitoring data (2009–2019) from post-fire forests in California, we developed three competing occupancy models describing different hypotheses for habitat associations: (1) a static model representing an existing management tool, (2) a temporal model accounting for years since fire, and (3) a temporal-landscape model which additionally incorporates emerging evidence from field studies about the influence of pyrodiversity. Evaluating predictive ability, we found superior support for the temporal-landscape model, which showed a positive relationship between occupancy and pyrodiversity and interactions between habitat associations and years since fire. We incorporated this new temporal-landscape model into an RShiny application to make this decision-support tool accessible to decision-makers: <a href="https://birdpop.org/pages/bbwoPredPostFireDist.php">https://birdpop.org/pages/bbwoPredPostFireDist.php</a>.</p>
Shifting Dynamics in International Trade Networks: A Longitudinal Analysis of Major Exporting Economies (1992-2020): A case of the US, China, India, Japan and South Korea
<p>This article aims to analyze the changes in trading networks by bringing out aspects of centrality and reciprocity among participating countries. The research considers the trade relations of five export countries, namely, The U.S., China, India, Japan, and South Korea from 1992 to 2020. We examine whether trade networks are truly becoming more bidirectional over the long term and how the political and economic crises that have occurred in the past 30 years affect the structure of trade networks. The article presents key findings on the changes in the network structure of international trade over the past 30 years. The network structure has become more reciprocal for most product categories, and the center of the trade network has shifted from the United States to China. The analysis also demonstrated that the center of the network has shifted from U to C for all product categories, except for raw materials. The study also highlights the significant impact of global events and crises on the international trade network structure, emphasizing the importance of considering geopolitical events and economic shocks in understanding trade dynamics.</p>
CRLC: Cross-resolution national-scale land-cover mapping based on noisy label learning: a case study of China
<p><strong>CRLC are the 10-meter resolution land cover maps for China in 2020 achieved by a deep classification network.</strong></p> <p><strong>The maps include eight land cover classes:</strong></p> <p>1: Cropland</p> <p>2: Forest</p> <p>3: Grass/shrubland</p> <p>5: Wetland</p> <p>6: Water bodies</p> <p>8: Impervious</p> <p>9: Bareland</p> <p>10: Snow/ice</p> <p> </p> <p><strong>Reference:</strong></p> <pre>@article{liu2023cross, title={Cross-resolution national-scale land-cover mapping based on noisy label learning: A case study of China}, author={Liu, Yinhe and Zhong, Yanfei and Ma, Ailong and Zhao, Ji and Zhang, Liangpei}, journal={International Journal of Applied Earth Observation and Geoinformation}, volume={118}, pages={103265}, year={2023}, publisher={Elsevier} }</pre>
Detecting ecological traps in human-altered landscapes: A case study of the thick-billed longspur nesting in croplands
<p>Conversion of the North American prairies to cropland remains a prominent threat to grassland bird populations. Yet, a few species nest in these vastly modified systems. The thick-billed longspur (<em>Rhynchophanes mccownii</em>) is an obligate grassland bird whose populations have declined 4% annually during the past 50 years. Thick-billed longspurs historically nested in recently disturbed or sparsely vegetated patches within native mixed-grass prairie, but observations of longspurs in spring cereal and pulse crop fields during the breeding season in northeastern Montana, USA suggest such fields also provide cues for habitat selection. Maladaptive selection for poor-quality habitat may contribute to ongoing declines in longspur populations, but information on thick-billed longspur breeding ecology in crop fields is lacking. We hypothesized that these crop fields may function as ecological traps; specifically, we expected that crop fields may provide cues for territory selection, but frequent human disturbance and increased exposure to weather and predators would have negative consequences for reproduction. To address this hypothesis, we compared measures of habitat selection (settlement patterns and trends in abundance) and productivity (nest density, nest survival, and number of young fledged) between crop fields and native grassland sites during 2020–21. Across both years, settlement patterns were similar between site types and occupancy ranged from 0.52 ± 0.17SE to 0.99 ± 0.01 on April 7 and 30, respectively. Early season abundance differed by year, and changes in abundance during the breeding season appeared to be associated with precipitation-driven vegetation conditions rather than habitat type. While an index of nest density was lower in crop than native sites, the number of young fledged per successful nest (2.9 ± 0.18SE) and nest survival (0.24 ± 0.03 SE; n=222 nests) were similar for crop and native sites. Collectively, the data did not support our ecological trap hypothesis: longspurs did not exhibit a clear preference for crop sites and reproductive output was not significantly reduced. Our results indicate that croplands may provide alternative breeding habitat within a human-dominated landscape.</p>
On the Performance of NVRAM-based Operating Systems: A Case Study with Linux and FreeBSD
<p>All artefacts regarding "On the Performance of NVRAM-based Operating Systems: A Case Study with Linux and FreeBSD".</p> <ul> <li>Changes to Linux</li> <li>Changes to FreeBSD</li> <li>Testsetup and benchmarks</li> <li>Measurements</li> </ul> <p> </p>
Data supporting "Machine Learning-based Modeling of Olfactory Receptors: Human OR51E2 as a Case Study"
<p>Simulation data and input files in support of the Manuscript:"Machine Learning-based Modeling of Olfactory Receptors: Human OR51E2 as a Case Study".<br> <br> The archive is organized in 6 different folders:</p> <p>1. <strong>7x7_rmsd</strong>, which contains a tcl script (to be run in VMD) to compute the 7x7 RMSD matrix (see Wang et al. J Struct. Bio, (2017)).<br> 2. <strong>a100_plumed</strong>, which contains PLUMED input files to compute A<sup>100 </sup>index on OR51E2 trajectories.<br> 3. <strong>initial_structures</strong>, which contains the 6 different conformation for hOR51E2 obtained by the different predictors in the pdb format.<br> 4. <strong>mdp_files</strong>, which contains the GROMACS mdp files to perform all the protocol described in the paper.<br> 5. <strong>topologies</strong>, which contains the 6 different topologies (in .top format) and the initial conformation (in .gro format) for the hOR51E2 embedded in the membrane and solvated.<br> 6. <strong>trajectories</strong>, which contains the 18 (6 systems, 3 replicas per system) different trajectories with the sodium in place close to D69<sup>2.50</sup> without solvent and ions (in .xtc format with a frame every 100 ps) and a reference conformation (in .gro format). Here we have also added the trajectory for the SwissModel-derived simulation without sodium ion in place, where we observed the ion binding. This last trajectory contains also solvent and ions, but with a lower printing frequency (1 ns).</p>
MSHs of case no.1-908
<p>MSHs and the variables of case no.1-908. This is the dataset used for multi-linear regreesion model to find the coeffient of each variables. </p>
FIG. 6 in Populations of a new morphotype of corrugate Lessonia Bory in the Beagle Channel, sub-Antarctic Magellanic ecoregion: a possible case of on-going speciation
FIG. 6. — MJ network of ITS1 haplotypes of Magellanic Lessonia Bory, spp. individuals.
Historical data set for the Flumendosa case study in Sardinia, Italy.
<p>The files COUT, WTMP, EVAP, CTMP contain the outflow, outflow water temperature, evapotranspiration and corrected air temperature of the sub basins respectively. CCIN, CCON, CCTN, CCTP, CCPP, CCSP, CCSS, CCTS are the concentrations of inorganic ang organic nitrogen; the total nitrogen and phosphorus; the particulate and soluble phosphorus and the suspended and total sediment. CPRC is the corrected precipitation and UPVAP the evapotranspiration from the upstream area of each sub basin.</p>
Primewater Flumendosa (Sardinia) case study historical data
<p>Historical data for the Flumendosa (sardinia, Italy) PrimeWater case study. The files COUT, WTMP, EVAP, CTMP contain the outflow, outflow water temperature, evapotranspiration and corrected air temperature of the sub basins respectively. CCIN, CCON, CCTN, CCTP, CCPP, CCSP, CCSS, CCTS are the concentrations of inorganic ang organic nitrogen; the total nitrogen and phosphorus; the particulate and soluble phosphorus and the suspended and total sediment. CPRC is the corrected precipitation and UPVAP the evapotranspiration from the upstream area of each sub basin.</p>
Supporting Data for "Does a Machine-Learned Potential Perform Better Than an Optimally Tuned Traditional Force Field? A Case Study on Fluorohydrins"
<p>Supporting Data for "Does a Machine-Learned Potential Perform Better Than an Optimally Tuned Traditional Force Field? A Case Study on Fluorohydrins"</p>
A physical perspective of recurrent water quality degradation: a case study in the Jiangsu coastal waters, China
<p>This dataset is created for manuscript entitle of <strong>A physical perspective of recurrent water quality degradation: a case study in the Jiangsu coastal waters, China</strong> submitted to <em>Journal of Geophysical Research: Oceans</em>. This dataset should not be used without agreement from authors before the paper published.</p>
Approaches for handling missing values and their impacts on biological inferences: a molecular rate case study
<p>GenBank accession numbers for nuclear sequence records used to build phylogenetic tree in manuscript entitled "Approaches for handling missing values and their impacts on biological inferences: a molecular rate case study". Nuclear sequences and GenBank accession numbers originally from multigene alignment and supplementary material published in Rabosky et al. (2018; 2019).</p> <p>Rabosky, D.L., Chang, J., Title, P.O. <em>et al.</em> An inverse latitudinal gradient in speciation rate for marine fishes. <em>Nature</em> <strong>559</strong>, 392–395 (2018). https://doi.org/10.1038/s41586-018-0273-1</p> <p>Rabosky, Daniel L. et al. (2019), Data from: An inverse latitudinal gradient in speciation rate for marine fishes, Dryad, Dataset, <a href="https://doi.org/10.5061/dryad.fc71cp4">https://doi.org/10.5061/dryad.fc71cp4</a> </p>
Data for: Approaches for handling missing values and their impacts on biological inferences: a molecular rate case study
<p>These data files are associated with the manuscript entitled: "Approaches for handling missing values and their impacts on biological inferences: a molecular rate case study" by Jacqueline A. May, Zeny Feng, and Sarah J. Adamowicz. This project entailed an evaluation of missing data handling approach on inferences using a molecular evolution case study. A target mixed-type dataset was first imputed using a real data-driven strategy for imputation method selection. Both trait-only (non-phylogenetic) and phylogenetic imputation methods were used to impute the dataset. Phylogenetic generalized least squares (PGLS) analyses were then applied to the complete-case and imputed datasets, specifying the traits as predictors and molecular evolutionary rates as the response variable. Those traits that associate significantly with molecular rates were identified and PGLS models compared to determine how the approach for handling missing data impacts biological inferences and conclusions.</p> <p>The files stored here are the trees built for phylogenetic imputation (RAxML tree and ultrametric tree versions) and the corresponding GenBank accession numbers.</p>
Computational workflows for perovskites: Case study for lanthanide manganites
<p>Supplemental material for the above manuscript. Revised version (v2.0).</p> <p>Includes the complete code archive, including all Quantum ESPRESSO calculation input and output files, as well as postprocessing scripts used to generate the figures in this manuscript.</p>
Understanding the incidence and timing of rabies cases in domestic animals and wildlife in south-east Tanzania in the presence of widespread domestic dog vaccination campaigns
<p>The "Zero by 30" strategic plan aims to eliminate human deaths from dog-mediated rabies by 2030, and domestic dog vaccination is a vital component of this strategic plan. In areas where domestic dog vaccination has been implemented, it is important to assess the impact of this intervention. Additionally, understanding temporal and seasonal trends in the incidence of animal rabies cases may assist in optimizing such interventions. Data on the incidence of probable rabies cases in domestic and wild animals were collected between January 2011 and December 2018 in thirteen districts of south-east Tanzania where jackals comprise over 40% of reported rabies cases. Vaccination coverage was estimated over this period, as five domestic dog vaccination campaigns took place in all thirteen districts between 2011 and 2016. Negative binomial generalized linear models were used to explore the impact of domestic dog vaccination on the annual incidence of animal rabies cases, whilst generalized additive models were used to investigate the presence of temporal and/or seasonal trends. Increases in domestic dog vaccination coverage were significantly associated with a decreased incidence of rabies cases in both domestic dogs and jackals. A 35% increase in vaccination coverage was associated with a reduction in the incidence of probable dog rabies cases of between 78.0 and 85.5% (95% confidence intervals ranged from 61.2 to 92.2%) and a reduction in the incidence of probable jackal rabies cases of between 75.3 and 91.2% (95% confidence intervals ranged from 53.0 to 96.1%). A statistically significant common seasonality was identified in the monthly incidence of probable rabies cases in both domestic dogs and jackals with the highest incidence from February to August and lowest incidence from September to January. These results align with evidence supporting the use of domestic dog vaccination as part of control strategies aimed at reducing animal rabies cases in both domestic dogs and jackals in this region. The presence of a common seasonal trend requires further investigation but may have implications for the timing of future vaccination campaigns.</p>
ScienceDex guides
Understand access before you commit
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.