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6,175 results for “Composite”
Figure 2 in Medium- and large-sized mammal composition in the Chapada dos Veadeiros National Park and adjacent areas, state of Goiás, Brazil
Figure 2. Medium and large-sized mammals recorded in the Chapada dos Veadeiros National Park and surroundings, Goiás, Brazil. (A) Ozotoceros bezoarticus; (B) Tapirus terrestris; (C) Panthera onca; (D) Chrysocyon brachyurus; (E) Myrmecophaga tridactyla; and (F) Mazama gouazoubira.
Figure 1 in Medium- and large-sized mammal composition in the Chapada dos Veadeiros National Park and adjacent areas, state of Goiás, Brazil
Figure 1. Distribution of camera-traps in the sampled area of Chapada dos Veadeiros National Park (delimited polygon) and its surroundings (10 km from the park boundaries), separated by at least 1 km, in the Cerrado of central Brazil. inserted within the Cerrado biome (coordinates of 13°51' to 14°10'S and 47°25' to 47°42'W). The CVNP is considered the largest area of environmental conservation and the most important ecotourism attraction in the region (Barbosa, 2008). The Cerrado region is located in mid-latitudes and presents the main seasonal climatic type (Aw), with annual temperature between 24°C and 26°C and 90% of rainfall concentrated from October to April, while in the dry season (May to September), the air humidity is very low (below 20% in August and September) and the amount of rainfall can reach zero millimeters in a few months (Marcuzzo et al., 2012). In the region of CVNP, there is a predominance of soils poor in nutrients, which ends up preventing the larger plant colonization, whichever the grasslands of the Cerrado Sensu Strictu (Eiten, 1972; Felfili et al., 2007). In total, the CVNP presents 77% of savanna formation, and 9% corresponds to the forest fragments (Porto et al., 2011). On the other hand, the surrounding of the park has the largest sum of private reserves (Private Reserves of Natural Heritage – RPPN) of the State of Goiás, are 21 RPPNs with 21,515.87 ha (30% of CVNP area) and these are hold a higher percentage of forest cover (Falconi & Diniz-Filho, 2003; Silva et al., 2016). 80% of the RPPNs area, located in the Alto Paraiso region, are protected near the areas sampled in this study (Silva et al., 2016).
Tree species richness differentially affects the chemical composition of leaves, roots and root exudates in four subtropical tree species - Sampling Raw Data
<p>Sampling Raw Data for the manuscript "<strong>Tree species richness differentially affects the chemical composition of leaves, roots and root exudates in four subtropical tree species </strong>" </p> <p>R Code for producing the sunburst plots from the data obtained by classyFire</p> <p> </p>
Fig. 20 in Taxonomic Composition And Systematics Of Late Cretaceous Lizard Assemblages From Ukhaa Tolgod And Adjacent Localities, Mongolian Gobi Desert
Fig. 20. Pyramicephalosaurus cherminicus: A, IGM 3/131, incomplete right maxilla with
Fig. 17 in Taxonomic Composition And Systematics Of Late Cretaceous Lizard Assemblages From Ukhaa Tolgod And Adjacent Localities, Mongolian Gobi Desert
Fig. 17. Gobinatus arenosus: A–D, IGM 3/126, incomplete skull with mandibles from Khulsan,
Fig. 9 in Taxonomic Composition And Systematics Of Late Cretaceous Lizard Assemblages From Ukhaa Tolgod And Adjacent Localities, Mongolian Gobi Desert
Fig. 9. Mimeosaurus crassus: A–C, IGM 3/
Fig. 34 in Taxonomic Composition And Systematics Of Late Cretaceous Lizard Assemblages From Ukhaa Tolgod And Adjacent Localities, Mongolian Gobi Desert
Fig. 34. Anguimorpha, Varanoidea, Aiolosaurus oriens, new genus and species: A–C, IGM 3/171,
Fig. 1 in Taxonomic Composition And Systematics Of Late Cretaceous Lizard Assemblages From Ukhaa Tolgod And Adjacent Localities, Mongolian Gobi Desert
Fig. 1. Map of Mongolian Gobi Desert showing major fossil localities.
The relation between the surface composition anomaly and the distribution of the exosphere of Mercury
<p>This is the dataset used in "The relation between the surface composition anomaly and the distribution of the exosphere of Mercury", which is under review.</p>
FIG. 4 in Devonian vertebrates from East Greenland: a review of faunal composition and distribution
FIG. 4. — Infragnathal? of Arthrodira gen. et sp. indet. 3 (MGUH f.n. 1612). Scale bar: 1 cm.
FIG. 2 in Devonian vertebrates from East Greenland: a review of faunal composition and distribution
FIG. 2. — Distribution of vertebrates in East Greenland.
Dietary composition and fatty acid content of giant salmonflies (Pteronarcys californica) in two Rocky Mountain rivers
<p>Many aquatic invertebrates are declining or facing extinction from stressors that compromise physiology, resource consumption, reproduction, and phenology. However, the influence of these common stressors specifically on consumer-resource interactions for aquatic invertebrate consumers is only beginning to be understood. We conducted a field study to investigate <i>Pteronarcys californica</i> (i.e., the 'giant salmonfly'), a large-bodied insect that is ecologically and culturally significant to rivers throughout the western U.S. We sampled gut contents and polyunsaturated fatty acid (PUFA) composition of salmonflies to compare resource consumption across river (Madison or Gallatin, Montana), sex (male or female), and habitat (rock or woody debris). We found that allochthonous detritus comprised the majority of salmonfly diets in the Gallatin and Madison Rivers, making up 68% of the gut contents on average, followed by amorphous detritus, diatoms, and filamentous algae. Diets showed little variation across river, sex, or length. Minor differences in diets were detected by habitat type, with a higher proportion of diatoms in the diets of salmonflies collected from rocky habitat compared to woody debris. Fatty acid composition generally supported the results of gut content analysis but highlighted the importance of primary producers. The presence of eicosapentaenoic acid (EPA; 20:5n-3) and alpha linolenic acid (ALA; 18:3n-3) suggest consumption of diatoms and filamentous green algae, respectively. Our research underscores the importance of a healthy riparian zone that provides allochthonous detritus for invertebrate nutrition as well as the role of algae as an important source of fatty acids.</p>
Both diversity and functional composition affect productivity and water use efficiency in experimental temperate grasslands
<p>Many experiments have shown that biodiversity promotes ecosystem functioning and stability and that this relationship varies with resource availability. However, we still have a poor understanding of the underlying physiological and ecological mechanisms driving diversity effects and how they may interact with soil nutrient availability.</p> <p>We collected data in a grassland experiment factorially manipulating fertilization, species richness, functional composition (slow-growing <i>vs</i>. fast-growing species), and functional diversity in resource economic traits. We measured aboveground productivity, nitrogen (N) uptake, photosynthesis, and water use efficiency by combining a <sup>15</sup>N labelling approach with productivity, gas exchange, and stable isotope measurements in three years differing in rainfall.</p> <p>We found that sown species richness increased aboveground productivity, N uptake and photosynthesis, suggesting that species richness is the most important driver of ecosystem productivity and nutrient cycling. Similarly, photosynthesis was affected by functional composition but not by functional diversity. Water use efficiency was reduced by sown species richness for communities dominated by slow growing species but not for communities dominated by fast growing species. Fertilization increased productivity, N uptake and water use efficiency. The positive effects of high species richness on ecosystem functions were independent of fertility levels.</p> <p><i>Synthesis</i>. Our results provide evidence that high species richness in temperate grasslands could enhance productivity and reduce the negative impacts of drought events. Multiple factors and community characteristics are important in driving enhanced ecosystem functioning in biodiverse grasslands and seem to affect functioning and stability through different mechanisms.</p>
16S processed data and shell processing scripts for "Epithelial-myeloid exchange of MHCII constrains immunity and microbiota composition"
<p>Main repo for MHCII on IECs 16S processing code.</p>
X-ray computed tomography and scanning electron microscopy datasets of unidirectional and textured glass fibre composites.
<p>3D x-ray tomography and 2D scanning electron microscopy (SEM) data behind the publications: </p> <p>Salling, F.B, Jeppesen, N., Sonne, M.R., Hattel, J.H., Mikkelsen, L.P. Individual Fibre Inclination Segmentation from X-ray Computed Tomography using Principal Component Analysis, <em>Journal of Composite Materials</em>, <strong>56</strong>, 83-98, <a href="https://doi.org/10.1177%2F00219983211052741">https://doi.org/10.1177/00219983211052741</a>, 2022.</p> <p>to where the reference should be given if used. </p> <p>Details on the data-set is given in the supplementary document found together with the data</p> <p>The data-files is given for the two material case called Mock and UD. For each material case, the data is given as:</p> <ul> <li>.txm-files: 3D reconstructed x-ray scan files <ul> <li>FoV 2mm binning 2 (analyzed in the paper)</li> <li>FoV 4mm binning 1 (additional data-set)</li> </ul> </li> <li>2Dtif.zip-files: 2D tif-stack version of the 3D reconstructed data-set</li> <li>.tif-files: stitched SEM scanning file used for fiber volume fraction determination</li> <li>.hdr-files: meta-data ASCII file behind the SEM scan</li> <li>tif.zip-files: The individual images behind the stitched SEM scanning file</li> <li>fig-files: digital form of the fibre trajectories colored according to their individual mean inclination used in figure xx in reference yy</li> <li>m-files: Matlab-script for calculating the fibre volume fraction (Vf) from the SEM image</li> <li>mat-files: Mat-file with the segmented part in the SEM image used for the Vf calculation</li> </ul>
Reassessment of the proteomic composition and function of extracellular vesicles in the seminal plasma
<p>Seminal plasma contains a high concentration of extracellular vesicles (EVs). The heterogeneity of small EVs or the presence of non-vesicular extracellular matter(NV) pose major obstacles in understanding the composition and function of seminal EVs. In this study, we employed high-resolution density gradient fractionation to accurately characterize the composition and function of seminal EVs and NV. We found that the seminal EVs could be divided into three different subtypes, namely high-density EV (EV-H), medium-density EV (EV-M), and low-density EV (EV-L) after purification using iodixanol,while NV was successfully isolated. EVs and NV display different features in size, shape and expression of some classic exosome markers. Both EV-H and NV could markedly promote sperm motility and capacitation compared with EV-M and EV-L, whereas only the NV fraction induced sperm acrosome reaction. Proteomic analysis results showed that EV-H, EV-M, EV-L, and NV had different protein components and were involved in different physiological functions. Further study showed that EV-M might reduce the production of sperm intrinsic reactive oxygen species (ROS) through Glutathione S-transferase Mu 2 (GSTM2).This study provides novel insights into important aspects of seminal EVs constituents and sounder footing to explore their functional properties in male fertility.</p>
Fracture resistance dataset of composites under mixed-mode non-proportional loading
<p>Fracture resistance dataset of composites under mixed-mode non-proportional loading</p>
Data from: Predicting bushmeat biomass from species composition captured by camera traps: implications for locally-based wildlife monitoring
<p>The 'StatAnalysis.zip' contains the data and model files. We used it for the four analyses below.</p> <p>First, we estimated population densities, the mean body mass and camera-trap capture rates of five main bushmeat targets in a rainforest of southeast Cameroon: Peters's duikers (<em>Cephalophus callipygus</em>), bay duikers (<em>C. dorsalis</em>), blue duikers (<em>Philantomba monticola</em>), brush-tailed porcupines (<em>Atherurus africanus</em>) and Emin's pouched rats (<em>Cricetomys emini</em>). Second, on the basis of the density and body mass estimates, we estimated bushmeat biomass—the total biomass of the five bushmeat species—and its spatial variation. Third, we calculated six bushmeat indicators based on the capture rate estimates. Lastly, we examined the correlation between bushmeat biomass and the indicators.</p> <p>The ZIP file consists of 16 R script files, three CSV files (in the 'data' subfolder) and 135 stan files (in the 'stan' subfolders). It also has two empty folders, 'figure' and 'res', where the figures and R objects of model results will be stored following the analyses. Please see the document 'README.txt' before performing the analysis. This text file gives the ZIP file structure and brief descriptions of the files.</p>
Ash Content and Elemental Composition Dataset from Badas Peat Swamp Forest
<p>This dataset presents peat soil data from the Badas peat swamp forest in Brunei Darussalam, focusing on ash content and elemental compositions to understand fire impacts. Peat samples were collected from two transects established in 2017, with 11 and 14 sampling points, respectively. Cores were extracted to a depth of 150 cm, combined into 12 fractions, and analyzed for ash content and elemental concentrations. Ash content was determined using oven-drying and muffle furnace ashing methods. Elemental analyses for Al, Ca, Fe, and Mg were conducted using acid digestion followed by ICP-AES analysis. The dataset, comprising 300 samples each for ash content and elemental concentrations, provides valuable insights into fire-induced changes in tropical peatlands.</p>
Synthetic seismogram input files for various Mars compositions
<p>Input files for qseis (DOI 10.5281/zenodo.6790788) to create synthetic seismograms for various Mars mantle compositions (Mg# 92, 81, 77, 73). Calculated along isentropy initiated at 100 km depth corresponding to 1750 K. Replaces previous input files (DOI 10.5281/zenodo.6791103).</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.