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6,175 results for “Composite”
DATASET: Isotope Ratios, Carbon and Nitrogen Concentrations, and Phytoplankton Composition Data from the ACE Expedition
<p>This dataset represents the averaged observations derived from the Antarctic Circumnavigation Expedition (ACE - 2016/2017) and has been utilized for the analyses presented in the publication: "A circum-Antarctic plankton isoscape: Carbon export potential across the summertime Southern Ocean". It encompasses a comprehensive suite of biogeochemical measurements, specifically the isotopic ratios (δ13C, δ15N) and concentrations of carbon and nitrogen in Suspended Particulate Matter (SPM). Additionally, it includes data from High-Performance Liquid Chromatography (HPLC) analyses (i.e., Total Chl-a and fractions of pico-, nano-, and micro-phytoplankton).</p><p>This dataset also contains the outputs of our calculations based on the two-endmember isotope mixing model (Fawcett et al., 2011), complemented by the Rayleigh model (Mariotti et al., 1981) to deduce the fraction of phytoplankton biomass originating from new nitrogen source (New Production).</p>
Code to run the analyses of "Forest storm resilience depends on the interplay between functional composition and climate - insights from European-scale simulations" by Barrere et al. (2024).
<p>Repository containing the code to run the model and statistical analyses of the paper "Forest storm resilience depends on the interplay between functional composition and climate - insights from European-scale simulations" by Julien Barrere, Björn Reineking, Maxime Jeaunatre and Georges Kunstler, accepted by Functional Ecology in 2024.</p><p> </p><p>The code requires prior installation of the <a href="https://github.com/gowachin/matreex">matreex</a> R package, developped by Maxime Jeaunatre (INRAE), and of the ```targets``` package. The data folder, required to run the code, can be made available upon request to julienbarrere3@gmail.com</p><p> </p><p>Once the packages are installed and the data folder is placer in the main folder, just run ```targets::tar_make()``` from R and the script will download the other packages required and run the analyses.</p><p> </p><p>A version of this code is also available in the github <a href="https://github.com/jbarrere3/FunDiv_ipm">repository</a></p><p> </p><p> </p>
FASTA 16s gene sequencing files for Control points for design of taxonomic composition in synthetic human gut consortia
<p>FASTA file output from Illumina MiSeq. Processed tally files (reads / species used to calculate relative abundances) are available in the other Zenodo repository listed in the key resources table, under ~ BC###/rawData/tallyfile.xlsx</p>
Code and processed data - Control points for design of taxonomic composition in synthetic human gut consortia
<p>Code, optical density data, and sequencing tally files (relative abundance from 16S sequencing of defined communities) for <strong>Control points for design of taxonomic composition in synthetic human gut consortia. </strong>Files are organized by experiment with a readme file contained within the .zip file. "Setup" folders have information about expeirmental design, "rawData" folders have optical density and tallyfiles, "analysis" folders have scripts used to analyze data and generate models. </p>
CO2 Electroreduction To Syngas With Tunable Composition In An Artificial Leaf
<p>Experimental dataset corresponding to figures in the main manuscript and supporting information</p>
Data for: Next-generation even-denominator fractional quantum Hall states of interacting composite fermions
<p>This is the repository of the original data for our research article "Next-generation even-denominator fractional quantum Hall states of interacting composite fermions"</p>
Random lasing data for HNTs-RhB composites
<p>Here, natural HNTs with different lengths and diameters have been employed as passive scatterers for the generation of random laser (RL) emission from rhodamine B (RhB) in a colloidal phase. Upon pumping at 532 nm, mixed HNT-RhB disordered colloidal systems are shown to yield orange RL emission with a linewidth as small as ∼4 nm. Moreover, a statistical analysis of shot-to-shot correlations among RL modes reveals an obvious photonic paramagnetic to spin-glass transition with increasing pump energy, which is a unique statistical fingerprint of RL. Interestingly, besides acting as scatterers, the HNTs are also found to improve the photostability of RhB molecules. Indeed, HNTs help to better dissipate the excess energy deposited in the gain medium, thus protecting the dye from photodegradation and facilitating the achievement of RL. The results contribute to the theoretical understanding and technical development of low-cost RL devices based on widely available sources in view of multiple prospective applications in photonics.</p>
Dataset for "Low blank sampling method for measurement of the nitrogen isotopic composition of atmospheric nitrogen oxide "
<p>The final dataset used in the manuscript "Low blank sampling method for measurement of the nitrogen isotopic composition of atmospheric nitrogen oxide<sub> </sub>" by Kamezaki et al. The dataset contains NOx concentration and nitrogen isotopic composition observed at Yoyogi and Tsukuba sites in Japan. Additionally, the data used in the paper are also included. Raw data are available upon request from the author.</p>
Replica Composite Harpoon
Replica Composite Harpoon (Catalog # 2002:226.241), a part of the Michigan State University Museum's Archaeology Teaching Collection. This tool, created by Carl Doney, is a replica of a harpoon used by Arctic hunters. It is composed of a maple wood shaft and deer antler tine point attached using deer sinew. The harpoon tip, made from bone and antler, is detachable and held to the harpoon shaft by a thin rope (not shown). Similar harpoons were used for salmon fishing. Dimensions: approximately 40.5cm L x 2cm W x 2.7cm T, weight= 58.7g This 3D model was created by Jeff Painter using an Artec Space Spider and Artec Studio 14 Professional, in partnership with the MSU Digital Heritage Imaging and Innovation (DHI) Lab. Source: Objaverse 1.0 / Sketchfab
Diagenesis decreasing the Mo isotopic composition in estuarine systems: Implications for constraining its riverine input to ocean
<p>Physical and chemical characteristics of water and particulate samples in the August and December 2014 cruises and characteristics of water samples from the July 2016 and February 2017 cruises.</p>
Tailoring the reaction pathway for control of size and composition of silver-gold alloy nanoparticles
<p>This is the raw data for the manuscript:</p> <p>Tailoring the reaction pathway for control of size and composition of silver-gold alloy nanoparticles<br><br>Abstract:<br><br>In this work, we focus on tuning both the particle size and chemical composition of bimetallic silver-gold alloy nanoparticles (NPs) by carefully controlling the reaction pathway. NP synthesis involves the control of the supersaturation profile in time and space. For the reaction-controlled case, this supersaturation profile is determined by a network of reactions leading to the build-up of the monomer concentration. Using a variety of characterization tools, we show how the process conditions influence the coupled reactions in the complex formation mechanism of silver-gold alloy NPs. Applying a simple mass balance allows for the independent control of size and chemical composition of these NPs, yielding particles with constant composition and varying size in the range of 20 to 40 nm. A series of constant sizes and varying chemical compositions in the range of 10 % to 100 % molar gold content is also possible. Our new methodology shows an example of how reaction networks can be tailored to achieve targeted NP properties and paves the way for better control in the synthesis of multicomponent NPs.</p> <p> </p> <p>All data are sorted according to their appearance in the figures of the main manuscript.</p>
Geographic drivers more important than landscape composition in predicting bee beta diversity and community structure
<p>The importance of microhabitat traits such as floral availability is well known; however, forest bee spatial dynamics have been variably studied across local to broad geographic scales. Past literature suggests that landscape factors from proximate to distal are important in determining forest bee community metrics, including richness, abundance, and taxonomic composition. Leveraging the interest and assistance of citizen science volunteers, we employed standard bee bowl trap transects across Maryland, Delaware, northern Virginia, and the District of Columbia and identified correlations between bee community composition, local and regional landcover, and broader geospatial patterns. We also identified the partial contributions of both specific species and sampling sites to total beta diversity. Various landcover metrics were significantly related to bee community structure, with bee abundance positively and negatively correlated with forest and wetland cover, respectively. In general, land cover metrics within a 1,000-m buffer exhibited stronger correlations with bee communities; however, broader geographic variation, using Cartesian coordinates north and east as indices, was most significantly correlated with the bee community. Specifically, bee communities were less rich to the east and south of the study area. We also identified similar correlations with the bee community as categorized both by trophic and nesting behaviors, with both geographic northing and easting proving to be most strongly correlated with the forest bee community. Results of beta diversity and cluster analyses showed that the most species-depauperate sites exhibited the highest contributions to beta diversity and that species-poor sites consisted of a reduced subset of the greater community. Our results show that successful bee conservation must consider, beyond local-scale resource availability, broad geospatial considerations and forest habitat connectivity across political and administrative boundaries.</p>
Supplementary material 2 from: Grabowska J, Płóciennik M, Grabowski M (2024) Detailed analysis of prey taxonomic composition indicates feeding habitat partitioning amongst co-occurring invasive gobies and native European perch. NeoBiota 92: 1-23. https://doi.org/10.3897/neobiota.92.116033
Relative abundance of prey categories (%N) (number of given prey category in relation to total number of prey) identified in fish guts at sites Z, R, B in the Western Bug River in August 2007
Supplementary material 1 from: Grabowska J, Płóciennik M, Grabowski M (2024) Detailed analysis of prey taxonomic composition indicates feeding habitat partitioning amongst co-occurring invasive gobies and native European perch. NeoBiota 92: 1-23. https://doi.org/10.3897/neobiota.92.116033
Relative abundance of species (%N) in fish assemblages found at sites Z, R, B in the Western Bug River in August 2007 (Penczak et al. 2010)
Trace and rare-earth element composition of 2480 Ma detrital zircons in Proterozoic metapsammites from northwestern Arizona
<p>Detrital zircon grains in the ~1740-1750 Ma Vishnu Schist and similar rock units in northwestern Arizona consist of up to 30% grains dated by U-Pb isotopic analysis at 2470-2490 Ma. These zircon grains are distributed over ~40,000 km<sup>2 </sup>and define an age peak at 2480.0 ± 27.3 Ma (2SE). These grains have yielded unusually consistent <sup>207</sup>Pb/<sup>206</sup>Pb dates, with generally smaller analytical uncertainty and greater concordance to ideal U-Pb evolution than grains of other ages. A weighted mean age of 2480 ± 0.9 Ma (2SE) for this zircon population reflects consistent analytical results and high analytical precision but not the accuracy of the age. The source of these zircons has not been identified. To better characterize the unidentified source, we analyzed 45 of these grains for trace and rare-earth elements by laser-ablation mass spectrometry and scanned 16 grains with an electron microprobe to identify mineral inclusions. Mass spectrometer determinations of Sc/Yb and Nb/Sc support derivation from an oceanic-island igneous source. Electron microprobe scans revealed quartz in 5 of 16 grains, indicating a felsic source. The low variability in <sup>207</sup>Pb/<sup>206</sup>Pb dates and a generally linear relationship between U and Th support zircon derivation from a single igneous unit or closely related set of units without xenocrystic zircons. A literature search for other zircon populations with similar age and U/Th ratios identified ~2480 Ma zircons in a Mesoproterozoic(?) metapsammite and conglomerate in southwestern Montana. This sandstone was deposited near the margin of the Wyoming craton and contains almost entirely 2400-3600 Ma zircons, unlike zircon grains in Vishnu Schist which include a large population of 1730-1900 Ma zircons. From this relationship, we infer that the 2480 Ma zircons in both areas were derived from a source in the Wyoming craton. We conclude that the 2480 Ma Vishnu zircons were derived from a felsic batholith that formed above and from hotspot magma related to the ~2450-2480 Ma Matachewan Large Igneous Province, that this batholith formed by mixing between a mantle-derived hotspot magma and assimilated Archean continental crust, and that the source rock was emplaced during initial rifting between the Wyoming craton and the Superior province.</p>
Datasets associated with the manuscript Protein Condensate Atlas from predictive models of heteromolecular condensate composition
<p>Datasets associated with the manuscript "Protein Condensate Atlas from predictive models of heteromolecular condensate composition".</p>
Code produced by the study "Advantages of assimilating multi-spectral satellite retrievals of atmospheric composition: A demonstration using MOPITT carbon monoxide products".
<p>This is the code used in the manuscript entitled "Advantages of assimilating multi-spectral satellite retrievals of atmospheric composition: A demonstration using MOPITT carbon monoxide products".</p>
Subspecies-specific BayesR posterior probabilities of inclusion for a composite population of tropically adapted beef heifers
<p>Many of the world's agriculturally important plant and animal populations consist of hybrids of subspecies. Cattle in tropical and sub-tropical regions for example, originate from two subspecies, <em>Bos taurus indicus </em>(<em>Bos indicus</em>)<em> </em>and <em>Bos taurus taurus (Bos taurus). </em>Methods to derive the underlying genetic architecture for these two subspecies are essential to develop accurate genomic predictions in these hybrid populations. We propose a novel method to achieve this. First, we use haplotypes to assign SNP alleles to ancestral subspecies of origin in a multi-breed and multi-subspecies population. Then we use a BayesR framework to allow SNP alleles originating from the different subspecies differing effects. Applying this method in a composite population of <em>B. indicus</em> and <em>B. taurus </em> hybrids, our results show that there are underlying genomic differences between the two subspecies, and these effects are not identified in multi-breed genomic evaluations that do not account for subspecies of origin effects. The method slightly improved the accuracy of genomic prediction. More significantly, by allocating SNP alleles to ancestral subspecies of origin, we were able to identify four SNP with high posterior probabilities of inclusion that have not been previously associated with cattle fertility and were close to genes associated with fertility in other species. These results show that haplotypes can be used to trace subspecies of origin through the genome of this hybrid population and, in conjunction with our novel Bayesian analysis, subspecies SNP allele allocation can be used to increase the accuracy of QTL association mapping in genetically diverse populations.</p>
Salix species and varieties affect the molecular composition and diversity of soil organic matter
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Silicate refractory brick waste as quartz sand filler replacement in MOC-based composites: Route to environmentally sustainable construction composites
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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.
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.