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6,175 results for “Composition”
FIGURE 3 in Floristic composition, life forms and phytogeography of the mountains between Damghan and Shahrud, Eastern Alborz (Iran)
FIGURE 3. Plant genera with the highest number of species.
Herbal composition by NMR
<p>Study attempted to correlate composition of herbal preparations with 1H NMR spectra.</p>
MOC-CBMW_composites
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Data Tabels (One-dimensional N-layer thermal modelling as a basis for effective machine learning training data generation for nondestructive testing of composite parts.)
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POLYCOMPONENTIAL COMPOSITE SENTENCES: A COMPREHENSIVE ANALYSIS
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Dataset for CoCu CO2RR composite
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Nitrogen and phosphorus composition of Yiluo River watershed
<p>Nitrogen and phosphorus composition of Yiluo River watershed</p>
PRODUCTION OF COMPOSITE MATERIAL USING INDUSTRIAL WASTE
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Sediment Sr-Nd Isotopic Composition in Potential Source Areas of Qarhan Lake Sediments
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Linked collectors and determiners for: Land-use and climate drive shifts in Bombus assemblage composition.
Natural history specimen data linked to collectors and determiners held within, "Land-use and climate drive shifts in Bombus assemblage composition". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/c6fdb7c6-9597-44e2-8b82-32714bb7133c">https://bionomia.net/dataset/c6fdb7c6-9597-44e2-8b82-32714bb7133c</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/c6fdb7c6-9597-44e2-8b82-32714bb7133c">https://gbif.org/dataset/c6fdb7c6-9597-44e2-8b82-32714bb7133c</a>. Formatted as a Frictionless Data package.
Dataset for the manuscript: "Sedentary behavior patterns and adiposity in children: a study based on compositional data analysis"
<p>This dataset includes all variables required to replicate the published study.</p> <p>Gába, A., Pedišić, Ž., Štefelová, N., Dygrýn, J., Hron, K., Dumuid, D., & Tremblay, M. (2020). Sedentary behavior patterns and adiposity in children: a study based on compositional data analysis. <em>BMC Pediatrics, 20</em>(1), 147. doi:10.1186/s12887-020-02036-6</p> <p>Dataset contains demographic characteristics, movement behavior data measured by an ActiGraph GT3X accelerometer (eg., time spent in physical activity and sedentary behavior), and obesity indicators assessed using the InBody 720 device (eg., fat mass percentage).</p>
Seasonal Harvesting Impact on Biomass Fuel Properties and Pyrolysis-Derived Bio-oil Organic Phase Composition
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Landscape structure of bacterial and fungal community composition in the West Nile Virus vector, Culex tarsalis
<p>Raw sequence data for fungi (ITS1 region) </p>
Data from: Community functional trait composition at the continental scale: the effects of non-ecological processes
Ecological communities and their response to environmental gradients are increasingly being described by measures of trait composition at the community level – the trait-based approach. Whether ecological or non-ecological processes influence trait composition between communities has been debated. Understanding the processes that influence trait composition is important for reconstructing paleoenvironmental conditions from fossil deposits and for understanding changes in community functionality through time. Here, we assess the influence of ecological and non-ecological processes on the distribution of traits within North American mammals. We found that non-ecological processes including historical contingency, spatial autocorrelation, and evolutionary history do not influence trait composition; however, the variance in trait composition is highly explained by climate gradients. Our results suggest that habitat breadth, terrestriality, diet breadth, and reproductive traits are strong candidates as proxies for measuring functional aspects of environments in the past and present.
Data from: Different-sized grazers have distinctive effects on plant functional composition of an African savannah
Grazing ungulates play a key role in many ecosystems worldwide and can form diverse assemblages, such as in African savannahs. In many of these ecosystems, present-day ungulate communities are impoverished subsets of once diverse assemblages. While we know that excluding all ungulates from grasslands can exert major effects on both the structure and composition of the vegetation, how different individual ungulate species may have contrasting effects on grassland communities remains poorly understood. Here, we performed a long term "Russian doll" grazing exclosure experiment in an African savannah to test for the effects of different size classes of grazers on grassland structure and composition. At five sites, grazer species of decreasing size class (ranging from white rhino to scrub hare) were excluded using four fence types, to experimentally create different realized grazer assemblages. The vegetation structure and the grass functional community composition were characterized in six different years over a 10 year period. Additionally, animal footprints were counted to quantify the abundance of different ungulate species in each treatment. We found that while vegetation height was mostly driven by total grazing pressure of all species together, ungulate community composition best explained the functional community composition of grasses. In the short term, smaller ungulate species ('mesoherbivores') had strongest effects on vegetation composition, by shifting communities towards dominance by species with low specific leaf area and low nutritional value. In the long term, large grazers had stronger but similar effects on the functional composition of the system. Surprisingly, the largest 'mega-herbivore', white rhinoceros, did not have strong effects on the vegetation structure or composition. Synthesis. Our results support the idea that different size classes of grazers have varying effects on the functional composition of grassland plant communities. Therefore, the worldwide decline in the diversity of ungulate species is expected to have (had) major impacts on community composition and functioning of grassland ecosystems, even if total grazing pressure has remained constant, e.g., due to replacement by livestock.
Data from: Changes in ectomycorrhizal fungal community composition and declining diversity along a 2-million-year soil chronosequence
Ectomycorrhizal (ECM) fungal communities covary with host plant communities along soil fertility gradients, yet it is unclear whether this reflects changes in host composition, fungal edaphic specialization or priority effects during fungal community establishment. We grew two co-occurring ECM plant species (to control for host identity) in soils collected along a 2-million-year chronosequence representing a strong soil fertility gradient and used soil manipulations to disentangle the effects of edaphic properties from those due to fungal inoculum. Ectomycorrhizal fungal community composition changed and richness declined with increasing soil age; these changes were linked to pedogenesis-driven shifts in edaphic properties, particularly pH and resin-exchangeable and organic phosphorus. However, when differences in inoculum potential or soil abiotic properties among soil ages were removed while host identity was held constant, differences in ECM fungal communities and richness among chronosequence stages disappeared. Our results show that ECM fungal communities strongly vary during long-term ecosystem development, even within the same hosts. However, these changes could not be attributed to short-term fungal edaphic specialization or differences in fungal inoculum (i.e. density and composition) alone. Rather, they must reflect longer-term ecosystem-level feedback between soil, vegetation and ECM fungi during pedogenesis.
Data for: Causes and consequences of variation in diet composition of nestling Canada jays
<p>Diet quality during development can impact growth, physiology, behaviour, and survival. The Canada jay is a resident boreal passerine that caches a wide variety of perishable food items in late summer and autumn for its over-winter survival and late-winter reproduction. A previous experiment found evidence that food supplementation of Canada jay pairs during the nestling period had a positive effect on the condition of their nestlings. However, given that foods cached by adults vary widely in nutritional content, the composition of nestling diets could also have an important influence on offspring development. In a population of Canada jays in Algonquin Provincial Park, Ontario, Canada, we investigated the influence of environmental conditions before and during the breeding season on nestling diet composition and the consequences of nestling diet composition on the body condition of nestlings and on their subsequent survival. Using stable-carbon (δ13C) and -nitrogen (δ15N) isotopes, we estimated the proportion of three food groups (vertebrates+human food, invertebrates and plants) in feathers from almost 200 nestlings. Nestling diet in March and April was influenced by environmental conditions 5 – 6 months prior to hatching, with warmer and more variable autumn temperatures associated with a greater proportion of vertebrate flesh and human food in the diet. However, the proportion of vertebrates and human food in the diet had no influence on nestling body condition or whether an individual was observed the following fall. Our results, in conjunction with previous work on Canada jays, suggest that the quantity of food available to a nestling during development may be more important than diet composition.</p> <p> </p>
Composition dependence of gel behaviour in oleic acid - sodium oleate oleogels".
<p>Composition dependence of gel behaviour in oleic acid - sodium oleate oleogels”. </p>
Supplementary references from: Thrombus composition, imaging, and outcome prediction in acute ischemic stroke
<p><strong>Purpose of the Review</strong>: <span>This article reviews the biochemical, structural, and imaging characteristics of intracranial thrombi in acute ischemic stroke; the relationship between thrombus composition and response to lytic and endovascular therapies; and current and future directions for improving outcomes in acute stroke patients based on thrombus characteristics.</span><br> <br> <span><strong>Recent Findings:</strong> New imaging techniques have advanced our ability to capture thrombus characteristics and burden in real-time, An improved understanding of recanalization rates with thrombolysis and endovascular thrombectomy based on thrombi has spurred interest in new acute therapies for acute stroke.</span></p> <p><strong><span>Summary</span></strong><span><strong>: </strong>Thrombus composition, size, location, and timing from stroke onset correlate with imaging findings in acute ischemic stroke and are associated with clinical outcome. Further research across multiple domains could assist in better applying our knowledge of thrombi to patient selection and individualization of acute therapies.</span></p>
Composition and crystal structure of Fe, Al-bearing bridgmanite single crystals
<p>Composition and crystal structure data of Fe, Al-bearing bridgmanite single crystals</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.
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.