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469 results for “Dimensions”
Ocotillo Plant Dimensions in the Chihuahuan Desert at the Sevilleta National Wildlife Refuge, New Mexico (1991)
This study looks at Ocotillo (Fouqieria splendens) at the northern extent of its range in New Mexico. Gross morphological and phenological measurements are made in the field and leaves are collected for isozyme work. Questions that this study may address are: Do individuals at range edges show reduced genetic diversity relative to individuals in the heart of the range? Do population age structures(Can we age them?) differ at edges. Can we, in time, determine stasis or movement of populations? Are demographics germane to the study questions? What other methods, in addition to isozyme work will we use to get at the relative genetics of these populations?
Summarizing the state of the terrestrial biosphere in few dimensions
<p>This repository contains the data and a docker container to reproduce the analysis in</p> <p>Kraemer, G., Camps-Valls, G., Reichstein, M., & Mahecha, M. D. (2020). Summarizing the state of the terrestrial biosphere in few dimensions. <em>Biogeosciences</em>, <em>17</em>(9), 2397–2424. <a href="https://doi.org/10.5194/bg-17-2397-2020">https://doi.org/10.5194/bg-17-2397-2020</a></p> <p>If you use this data and/or code, please cite the paper.</p> <p>This dataset is a subset of the DataCube v1.0.0 (https://www.earthsystemdatacube.net) plus a the FAPAR_tip dataset from DataCube v1.0.2</p> <p>The code to reproduce the analysis can also be found in http://doi.org/10.5281/zenodo.3733783 and https://github.com/gdkrmr/summarizing_the_state_of_the_biosphere</p> <p>To run the docker container, import the container, extract the data, run the command below, and open your web browser to access the jupyter server. Modify the command below as necessary, for details please consult the documentation for docker and jupyter:</p> <p>PORT=8333<br> IP=0.0.0.0<br> docker run -it \<br> -v /path/to/data/low-res/:/home/science/summarizing_biosphere/data \<br> -v /path/to/results_and_temporary_files/:/home/science/summarizing_biosphere/results \<br> -p $PORT:$PORT \<br> summarizing_biosphere \<br> /home/science/.julia/conda/3/bin/jupyter \<br> notebook \<br> --port=$PORT \<br> --ip=$IP \<br> --no-browser</p> <p> </p> <p> </p>
Large-scale comparison of bibliographic data sources: Scopus, Web of Science, Dimensions, Crossref, and Microsoft Academic
<p>This data set contains supplementary material for the paper 'Large-scale comparison of bibliographic data sources: Scopus, Web of Science, Dimensions, Crossref, and Microsoft Academic' by Martijn Visser, Nees Jan van Eck, and Ludo Waltman. The data set provides the statistics presented in the figures in the paper.</p>
Data from: Longevity, body dimension and reproductive mode drive differences in aquatic versus terrestrial life history strategies
<p>1. Aquatic and terrestrial environments display stark differences in key environmental factors and phylogenetic composition but their consequences for the evolution of species' life history strategies remain poorly understood.</p> <p>2. Here, we examine whether and how life history strategies vary between terrestrial and aquatic species. We use demographic information for 685 terrestrial and 122 aquatic animal and plant species to estimate key life history traits. We then use phylogenetically corrected least squares regression to explore potential differences in trade-offs between life history traits between both environments. We contrast life history strategies of aquatic vs. terrestrial species in a principal component analysis while accounting for body dimensions and phylogenetic relationships.</p> <p>3. Our results show that the same trade-offs structure terrestrial and aquatic life histories, resulting in two dominant axes of variation that describe species' pace-of-life and reproductive strategies. Terrestrial plants display a large diversity of strategies, including the longest-lived species in this study. Aquatic animals exhibit higher reproductive frequency than terrestrial animals. When correcting for body size, mobile and sessile terrestrial organisms show slower paces of life than aquatic ones.</p> <p>4. Aquatic and terrestrial species are ruled by the same life history trade-offs, but have evolved different strategies, likely due to distinct environmental selective pressures. Such contrasting life history strategies have important consequences for the conservation and management of aquatic and terrestrial species.</p>
Shade-growing practices lessen the impact of coffee plantations on multiple dimensions of ant diversity
<p>1. Land use management influence changes in biodiversity beyond the targeted species. Management practices in coffee plantations have shifted from coffee growing below accompanying (shade) trees, to intensified monocultures in which coffee grows fully exposed to the sun. Anthropogenic disturbance causes changes in species composition relative to adjacent natural patches and reduces their biotic heterogeneity. Here, we assessed the impact of coffee plantation management practices on the taxonomical, phylogenetic, and functional composition of ant communities, an ecologically dominant group and crucial biological pest controller in these agroecosystems. We hypothesized that shade-grown coffee plantations would harbor ant communities similar to those of nearby forest patches, but dissimilar to those of intensified monocultures.</p> <p>2. We surveyed ant diversity in eight shade-grown coffee farms, eight intensive coffee monocultures and eight forest patches. We used a combination of active and passive sampling methods over two field campaigns spanning six months.</p> <p>3. Our results support our hypothesis for all diversity dimensions. Additionally, ant communities in intensified monocultures were taxonomically and functionally, but not phylogenetically, more homogeneous than those found in forest patches and shade-grown plantations.</p> <p>4. Synthesis and applications. Our findings support the idea that practices in shade-grown plantations buffer the impoverishment of multiple diversity dimensions after forest conversion. By assessing and integrating multiple biodiversity dimensions into management strategies, farmers and interested parties can minimize future biodiversity and ecosystem service loss.</p>
Predator-prey overlap in three dimensions: cod benefit from capelin coming near the seafloor
<p>Spatial overlap between predator and prey is a prerequisite for predation, but the degree of overlap is not necessarily proportional to prey consumption. This is because many of the behavioural processes that precede ingestion are non-linear and depend on local prey densities. In aquatic environments, predators and prey distribute not only across a surface, but also vertically in the water column, adding another dimension to the interaction. Integrating and simplifying behavioural processes across space and time can lead to systematic biases in our inference about interaction strength. To recognise situations when this may occur, we must first understand processes underlying variation in prey consumption by individuals. Here we analysed the diet of a major predator in the Barents Sea, the Atlantic cod (Gadus morhua), aiming to understand drivers of variation in cod's feeding on its main prey capelin (Mallotus villosus). Cod and capelin only partly share habitats, as cod mainly reside near the seafloor and capelin inhabit the free water masses. We used data on stomach contents from ~2000 cod individuals and their surrounding environment collected over 12 years, testing hypotheses on biological and physical drivers of variation in cod's consumption of capelin, using Generalized Additive Models. Specifically, effects of capelin abundance, capelin depth distribution, bottom depth, and cod abundance on capelin consumption were evaluated at a resolution scale of 2 km. We found no indication of food competition as cod abundance had no effect on capelin consumption. Capelin abundance had small effects on consumption, while capelin depth distribution was important. Cod fed more intensively on capelin when capelin came close to the seafloor, especially at shallow banks and bank edges. Spatial overlap as an indicator for interaction strength needs to be evaluated in three dimensions instead of the conventional two when species are partly separated in the water column.</p>
Data from: Ecological and geographic dimensions of diversification in Piper subgenus Ottonia: a lineage of neotropical rainforest shrubs
The Neotropics are home to incomparable plant diversity. To evaluate the potential roles of geography and ecology on speciation in Neotropical plants we selected a small, tractable lineage of shrubby angiosperms, Piper subgenus Ottonia. We reconstructed a molecular phylogeny and provided insights into the species divergence times based on fossil calibration of the molecular clock. We support the monophyly of Piper subg. Ottonia and the two main lineages: Amazonian and Atlantic Forest, the latter containing the non-Atlantic species pair P. darienense‐P. piscatorum. We also propose the origin of Piper subg. Ottonia in the early Eocene and suggest that the diversification of Piper subg. Ottonia was influenced by geo-historical events such as the Paleocene-Eocene Thermal Maximum (PETM) and the uplift of the Andes in the Miocene, as is the case for other angiosperms. Furthermore, we combined our phylogeny with geographic and environmental data in order to evaluate geographical and ecological contexts for speciation. We indicate that neither climatic/edaphic divergence nor geographic isolation appears to be needed to explain speciation in this lineage.
Comparing Machine Learning Classifiers and Linear/Logistic Regression to Explore the Relationship between Hand Dimensions and Demographic Characteristics
<p>-----------------------------------------------------------------------------------------------------------------</p> <p>Data for "<strong>Comparing Machine Learning Classifiers and Linear/Logistic Regression to Explore the Relationship between Hand Dimensions and Demographic Characteristics</strong>" (PLOSONE)</p> <p>Oscar Miguel-Hurtado<sup>1</sup>, Richard Guest<sup>1</sup>, Sarah V. Stevenage<sup>2</sup>,Greg J. Neil<sup>2</sup>,Sue Black<sup>3</sup><br> </p> <ul> <li><sup>1</sup> School of Engineering and Digital Arts, University of Kent, Canterbury, UK</li> <li><sup>2</sup> Department of Psychology, University of Southampton, Southampton, UK</li> <li><sup>3</sup> Centre for Anatomy and Human Identification, University of Dundee, Dundee, UK</li> </ul> <p>-----------------------------------------------------------------------------------------------------------------</p> <p>For more information please contact: O.Miguel-Hurtado-98@kent.ac.uk (Oscar Miguel)</p> <p>-----------------------------------------------------------------------------------------------------------------</p> <p>The zip contains right and left hand geometry images from 112 participants. The images were captured using a Nikon D200 SLR camera (format: jpg, size: 3504x2336 pixels), with both the palm of the hand and camera facing downwards. Participants placed each hand on an acetate sheet with a series of positioning pegs.</p> <p>-----------------------------------------------------------------------------------------------------------------</p> <p>The excel contains a series of length measurements (based on the underlying skeleton of the hand) manually extracted (see Figure 1 for details) along with demographic information from the participants: sex (male or female), height (in cm), weight (in kg) and foot size (in UK sizes).</p>
Concurrent anticipation of two object dimensions during grasping in 10-month-old infants: A quantitative analysis
<p>Data set of Concurrent anticipation of two object dimensions during grasping in 10-month-old infants: A quantitative analysis</p>
Seeking Attention in Different Dimensions
Jubilee Church, Richard Meier, 2003 Fundação Iberê Camargo, Alvaro Siza, 2003 Source: Objaverse 1.0 / Sketchfab
Dataset for the manuscript "Realization of an atomic quantum Hall system in four dimensions", arXiv:2210.06322
<p>Dataset for the manuscript "Realization of an atomic quantum Hall system in four dimensions", arXiv:2210.06322</p>
Data from: Functional connectivity in sympatric spiny rats reflects different dimensions of Amazonian forest-association
<p><span><strong>Aim: </strong>Understanding how the landscape influences gene flow is important in explaining biodiversity, especially when co-distributed taxa across heterogeneous landscapes exhibit species-specific habitat associations. Here, we test predictions about the effects of forest-type on population connectivity in two sympatric species of spiny rats that differ in their forest associations. Specifically, we evaluate the hypothesis that seasonal floodplain forests (<em>várzea</em>) provide linear connectivity, facilitating gene flow among individuals, while non-flooded forests (<em>terra-firme</em>) may diminish the functional connectivity.</span></p> <p><span><strong>Location:</strong> Western Amazon, South America.</span></p> <p><span><strong>Taxon:</strong> <em>Proechimys simonsi</em> (non-flooded forests, <em>terra-firme</em>) and <em>Proechimys steerei</em> (seasonal floodplain forests, <em>várzea</em>).</span></p> <p><span><strong>Methods:</strong> We analyze about 13,000 SNPs along with characterizations of landscape heterogeneity for two forest types to test for differences in the functional connectivity. Influence of the landscape and environmental variables are quantified using maximum-likelihood population effect (MLPE) models to identify the relative importance of variables in explaining the gene flow.</span></p> <p><span><strong>Results:</strong> There are significant differences in functional connectivity between species. However, the genomic data does not support the conventional hypotheses of higher connectivity for inhabitants of <em>várzea</em> than those of<em> terra-firme</em>. Stronger genetic structure in <em>P. steerei</em> than <em>P. simonsi </em>based on IBD models suggests reduced gene flow in species associated with <em>várzea</em> forests. Isolation by resistance reinforces that wetland habitats inhibit and promote the functional connectivity in <em>P. simonsi</em> and <em>P. steerei, </em>respectively, although large distances along the rivers can prevent gene flow in <em>P. steerei</em>.</span></p> <p><span><strong>Main conclusions: </strong>Interpreting differences between connectivity in taxa apparent from genetic analyses through the lens of a single dimension of Amazonian heterogeneity – that is, forest type – may be an oversimplification. Our statistical modeling and fit of the data to different models points to specific environmental and habitat differences between the ecological divergent spiny rat species that may contribute to differences in the genetic structure of these sympatric taxa.</span></p>
Dimensions, stability and deformability of DOPC-cholesterol Giant Unilamellar Vesicles formed by droplet transfer – Extended Data
<p>This dataset contains the Underlying Data to the paper “ Dimensions, stability and deformability of DOPC-cholesterol Giant Unilamellar Vesicles formed by droplet transfer”.</p> <ul> <li> “deformation_size” folder containing scatter plots of σ with respect to GUVs rest radii <ul> <li>sd_deform_scatter_H1</li> <li>sd_deform_scatter_H2</li> <li>sd_deform_scatter_H3</li> </ul> </li> <li>“magnetic_device_support” folder containing the .stl files for 3D-printing the magnets-support of the magnetic device <ul> <li>magnetic_device_support_part1</li> <li>magnetic_device_support_part2</li> </ul> </li> <li>“size_distribution_magnetic” folder containing size distribution histograms comparing 100:0 DOPC:cholesterol and 60:40 DOPC:cholesterol samples, under the application of magnetic fields <ul> <li>sd_magnetic_size_dist_allfields</li> <li>sd_magnetic_size_dist_H1</li> <li>sd_magnetic_size_dist_H2</li> <li>sd_magnetic_size_dist_H3</li> </ul> </li> <li>“size_distribution_T0vsON” folder containing size distribution histograms comparing pristine samples (t<sub>0</sub>) and samples after overnight storage (ON), for different DOPC:cholesterol ratios <ul> <li>sd_size_dist_60_40</li> <li>sd_size_dist_71_29</li> <li>sd_size_dist_85_15</li> <li>sd_size_dist_100_0</li> </ul> </li> </ul>
Null device-independent prepare-and-prepare bipartite dimension test with a single joint measurement
Open the record for dataset details and reuse information.
Subject-specific dimensions for designing clothing patterns
<p>The data set provided as a MATLAB (R2020a) binary file consists of 4 matrices. Each matrix has the size N times 23 and corresponds to the group of the Chinese adults (matrix adults_CN), the Czech adults (matrix adults_CZ), the Czech children (matrix children_CN) and the Czech adolescents (matrix teens_CZ). N is the number of measured subjects, where on each subjects, 23 anthropometric dimensions are measured. The dimensions in millimeters are consequently the total body height, the chest circumference (widest), the waist circumference (narrowest), the waist circumference (trousers), the hip circumference (widest), the shoulder width, the back width, the front length from neck to waist, the back length from neck to waist, the length from neck to shoulder, the sleeve length from neck to wrist, the arm circumference, the forearm circumference, the wrist circumference, the neck circumference, the length from crotch to knee, the length from crotch to ankle, the thigh circumference, the knee circumference, the calf circumference (widest), the ankle circumference, the length from waist to ground and the head circumference.</p>
Characterization of Pore Structure with Box Counting Fractal Dimension Based on Digital Rock
<p>This is a supplementary data set for a manuscript submitted to Journal of Geophysical Research: Solid Earth. This data set includes CT samples, process-based model, fractal dimensions calculated by the box counting algorithm, and Matlab codes to implement these modeling and fractal calculations.</p>
Dataset for "selection rules in symmetry-broken systems by symmetries in synthetic dimensions"
<p>Data for the article "Selection rules in symmetry-broken systems by symmetries in synthetic dimensions" by Matan Even Tzur, Ofer Neufeld, Eliyahu Bordo, Avner Fleischer, and Oren Cohen.</p>
SVAD Vertebral Neural Canal dimensions
<p>This file consists in the complete dataset of antero-posterior (AP) and transverse (TR) diameters measured on the vertebral neural canal (VNC) of the tenth thoracic to the fifth lumbar vertebrae of contemporary individuals from the Subadult Virtual Anthropology Database (SVAD) aged between birth and 20 years from Colombia (dry bone data), France, the Netherlands, Taiwan, and the United States (vertebral surfaces segmented from computed tomography scans). </p> <p>The dataset includes AP and TR diameters, age in years and days, biological sex, country of origin, numerical values of country-level and state-level Human Developmental Indices (HDI), numerical Gini index (country-level of inequality), categorical HDI levels, categorical Gini levels, life history stage, manner of death, and cause of death when applicable. <br> <br> The US individuals originate from the New Mexico Decedent Image Database (NMDID) where the original demogrpahic data and CT scans can be downloaded from. <br> CT scans for individuals from France, the Netherlands, and Taiwan are not openly available for other research. </p>
FishShapes v1: functionally relevant measurements of teleost shape and size on three dimensions
<p>Teleost fishes account for 96% of all fish species and exhibit a spectacular variety of body forms. Teleost lineages range from deep-bodied to elongate (e.g. eels, needlefish), laterally compressed (e.g. ribbonfish) to globular (e.g. pufferfish) and include uniquely shaped lineages such as seahorses, flatfishes and ocean sunfishes. Adaptive body shape convergence within fishes has long been hypothesized but the nature of the relationships between fish form and ecological and environmental variables remain largely unknown at the macroevolutionary scale. To facilitate the investigation of the interacting factors influencing teleost body shape evolution we measured 8 functionally relevant linear traits on adult-sized specimens along with specimen mass. Linear measurements of standard length, maximum body depth, maximum fish width, lower jaw length, mouth width, head depth, minimum caudal peduncle depth and minimum caudal peduncle width were taken in millimeters with calipers, or tape measures for oversized specimens. We measured these traits on a total of 16523 specimens (1-3 specimens per species) at the Smithsonian National Museum of Natural History and took approximately 7000 person hours of data collection to complete. The data went through a three-step error-checking process to clean and validate the data and then species averages were calculated. We present the complete specimen dataset, which encompasses approximately one fifth of extant teleost species diversity, spanning ~90% of teleost families and ~96% of orders. The species and family names are compatible with the FishBase taxonomy (Pauly & Froese, 2019) and the order information with the phylogenetically informed taxonomy of Betancur-R et al. (2014). This dataset is licensed under a Creative Commons Attribution - Non-Commercial 4.0 International License (CC BY-NC), please cite this paper when using the data or a subset of it.</p>
Data from: How does sustainable water consumption in the shower relate to different dimensions of perceived well-being? Empirical evidence from university students
<p>Water scarcity is already a worrying issue and it is predicted to get worse in the future. This creates an imperative to use water efficiently and sustainably. In the domestic sphere, one of the main uses of water is showering, not only for hygiene reasons but also as a wellness activity. In order to gain insight into the implications of sustainable shower use, in this paper we analyse the relationship between subjective well-being and water consumption in the shower. We aim to answer the following questions: 1) How does shower water consumption relate to subjective well-being, 2) Does this relationship differ depending on showering habits (time spent in the shower, and number of showers per week), and 3) Does this relationship differ depending on the season (winter and summer). The dataset contains information on 937 students from different disciplines at the University of Granada, Spain. The different interpretations of subjective well-being considered are life satisfaction, affect, and vitality. Results suggest that there is a negative relationship between water consumption and subjective well-being, in line with the literature that identifies a well-being dividend from green behaviour (being pro-environmental helps the environment and increases happiness). All subjective well-being dimensions are negatively related to time spent in the shower, regardless of the season. In contrast, the frequency of showering is not significantly related to well-being. Therefore, it appears that higher water consumption does not translate into higher perceived well-being, indicating that there is no conflict between efficient shower water use and individual well-being.</p>
ScienceDex guides
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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.