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1,157 results for “Limited data”
Supplementary data as part of the article "The role of carbon capture, utilization and storage for economic pathways that limit global warming to below 1.5 °C" (https://doi.org/10.1016/j.isci.2022.104237).
<p>Data of the plots in Figure 1a and Figure 1b, showing, respectively, the incremental and the integrated global CO<sub>2</sub> emissions for the 1.5 °C-committed decarbonization pathways from IPCC (P1, P2, P3, and P4 pathways) and the one originally obtained in this work (Q pathway).</p>
Data from: Demographic and ecogeographic factors limit wild grapevine spread at the southern edge of its distribution range - wild grapevine sampling locations, Maxent input files, morphological and microsatellite data
<p><span>This dataset contains raw data described in the paper: "Rahimi O., Ohana-Levi N., Brauner H., Inbar N., Hübner S. and Drori E. (2021) "Demographic and ecogeographic factors limit wild grapevine spread at the southern edge of its distribution range", accepted for publication in "Ecology and Evolution".</span></p> <p><span>The spatial distribution of plants is constrained by demographic and eco-geographic factors that determine the range and abundance of the species. In this study, we performed genetic and morphological analyzes based on SSR and OIV datasets. In addition, according to the spatial distribution model performed by Maxent software we found that distance to water sources, Normalized difference vegetation index, and precipitation are the main environmental factors constraining <i>V.v. sylvestris</i> distribution at its southern distribution range. All raw data used for this study can be found in this deposit which contains a table with grapevine locations, Maxent input files, morphological and microsatellite data. </span></p>
Data from: Species limits and introgression in Pimelodus from the Magdalena-Cauca River basin
<p>Low morphological differentiation among taxa hampers its appropriate identification, basic biological studies, and promotion of any conservation effort. Aiming to clarify the evolution and speciation among members of <i>Pimelodus </i>from the Magdalena-Cauca River basin, this study tested the hypothesis that <i>P. yuma, P. grosskopfii </i>and<i> P. crypticus</i> represent<i> </i>three independently evolving species and explored signals of interspecific hybridization. Likewise, we test the ancient hypothesis that the <i>trans</i>-Andean <i>Pimelodus yuma</i> and <i>P. crypticus</i> belong to the <i>cis</i>-Andean <i>P. blochii </i>species complex. The outcomes based on mitochondrial (<i>cox1</i>) and nuclear [RADseq (Illumina Hi-Seq), microsatellites and <i>rag2</i>] markers combined with coalescence-based and allele-frequency methods, confirm that each studied <i>trans</i>-Andean species represent<i> </i>an independently evolving unit. We used Stacks v.2.52 for <i>de novo</i> SNP genotyping. Contrary to expectations, <i>P. yuma </i>was<i> </i>found as a sister clade of <i>P. blochii</i>, while <i>P. crypticus </i>(confused for a long time with <i>P. blochii</i>) was phylogenetic closer to <i>P. grosskopfii</i>. Additionally, we found strong evidence of historical introgression between the non-sibling species <i>Pimelodus yuma </i>and<i> P. grosskopfii, </i>breaking the absence of interbreeding and the independent evolutionary trajectory among Trans-Andean <i>Pimelodus </i>during their diversification history, a pre-requisite to define species limits. However, non-significant values of current gene flow were evidenced between them, supporting the hypothesis of full isolation.</p>
Data for: "Above and below ground trait coordination in tree seedlings depend on the most limiting resource: A test comparing a wet and a dry tropical forest in Mexico" by L. Sanaphre-Villanueva, F. Pineda-Garcia, W. Dattilo, L. F. Pinzon-Perez, A. Ricaño Rocha, H. Paz.
<p>These data represent those published in “Above and below ground trait coordination in tree seedlings depend on the most limiting resource: A test comparing a wet and a dry tropical forest in Mexico” by L. Sanaphre-Villanueva, F. Pineda-Garcia, W. Dattilo, L. F. Pinzon-Perez, A. Ricaño Rocha, H. Paz. PeerJ. 2022.</p>
Data from: Implementation of a pediatric telemedicine and medication delivery service in a resource-limited setting: A pilot study for clinical safety and feasibility
<p>Objective: Determine the clinical safety and feasibility of implementing a telemedicine and medication delivery service (TMDS) to address gaps in nighttime healthcare access for children in low-resource settings.</p> <p>Results: A total of 391 cases were enrolled from September 9th, 2019 to January 19th, 2021; 89% (347) received a household visit. Most cases were triaged as mild or moderate (92%; 361). Among the severe cases, 83% (20) sought subsequent referred care. The most common complaint was a respiratory problem (63%; 246). At 10-days, 95% (329) of parents reported their child's condition as "improved" or "recovered". Ninety-nine percent (344) rated the TMDS as "good" or "great". The median phone consultation was 20 minutes, time to arrival at the household was 73 minutes and total workflow per case was 114 minutes.</p> <p>Conclusion: The TMDS was a feasible healthcare delivery model with high rates of improved clinical status at 10-days.</p>
Data supporting "Stems Matter: Xylem Physiological Limits Are an Accessible and Critical Improvement to Models of Plant Gas Exchange in Deep Time"
<p>Model outputs from from <em>Paleo</em>-BGC and <em>Paleo</em>-BGC+. Code detailing data structure and allowing reproduction of analysis can be found at github.com/wjmatthaeus</p>
Data from: Quantifying the environmental limits to fire spread in grassy ecosystems
<p>Modeling fire spread as an infection process is intuitive: an ignition lights a patch of fuel, which infects its neighbor, and so on. Infection models produce non-linear thresholds, whereby fire spreads only when fuel connectivity and infection probability are sufficiently high. These thresholds are fundamental both to managing fire and to theoretical models of fire spread, whereas applied fire models more often apply quasi-empirical approaches. Here, we resolve this tension by quantifying thresholds in fire spread locally, using field data from individual fires (n=1131) in grassy ecosystems across a precipitation gradient (496-1442mm mean annual precipitation), and evaluating how these scaled regionally (across 533 sites) and across time (1989-2012, 2016-2018) using data from Kruger National Park in South Africa. An infection model captured observed patterns in individual fire spread better than competing models. The proportion of the landscape that burned was well described by measurements of grass biomass, fuel moisture, and vapor pressure deficit. Regionally, averaging across variability resulted in quasi-linear patterns. Altogether, results suggest that models aiming to capture fire responses to global change should incorporate non-linear fire spread thresholds, but that linear approximations may sufficiently capture medium-term trends under a stationary climate.</p> <p><span> </span></p>
Data for: Adaptive variation in the upper limits of avian body temperature
<p><span>Physiological performance declines precipitously at high body temperature (Tb), but little attention has been paid to adaptive variation in upper Tb limits among endotherms. We hypothesized that avian maximum tolerable body temperature (T<sub>b</sub><em>max</em>) has evolved in response to climate, with higher T<sub>b</sub><em>max</em> in species exposed to high environmental heat loads or humidity-related constraints on evaporative heat dissipation. To test this hypothesis, we compared T<sub>b</sub><em>max</em> and related variables among 53 bird species at multiple sites in South Africa with differing maximum air temperatures (T<sub><em>air</em></sub>) and humidity using a phylogenetically-informed comparative framework. Birds in humid, lowland habitats had comparatively high T<sub>b</sub><em>max</em> (mean ± SD = 45.60 ± 0.58°C) and low normothermic T<sub>b</sub> (T<sub>b</sub><em>norm</em>), with a significantly greater capacity for hyperthermia (T<sub>b</sub><em>max</em> -T<sub>b</sub><em>norm</em> gradient = 5.84 ± 0.77 °C) compared to birds occupying cool montane (4.97 ± 0.99 °C) or hot arid (4.11 ± 0.84 °C) climates. Unexpectedly, T<sub>b</sub><em>max</em> was significantly lower among desert birds (44.65 ± 0.60°C), a surprising result in light of the functional importance of hyperthermia for water conservation. Our data reveal a macrophysiological pattern and support recent arguments that endotherms have evolved thermal generalization <em>versus </em>specialization analogous to the continuum among ectothermic animals. Specifically, a combination of modest hyperthermia tolerance and efficient evaporative cooling in desert birds is indicative of thermal specialization, whereas greater hyperthermia tolerance and less efficient evaporative cooling among species in humid lowland habitats suggests thermal generalization.</span></p>
Data from: Species recognition limits mating between hybridizing ant species
<p><span>Identifying mechanisms limiting hybridization is a central goal of speciation research. Here, we studied pre-mating and post-mating barriers to hybridization between two ant species, <em>Formica selysi</em> and <em>Formica cinerea</em>. These species hybridize in the Rhône valley in Switzerland, where they form a mosaic hybrid zone, with limited introgression from <em>F. selysi</em> into <em>F</em>. <em>cinerea</em>. There was no sign of temporal isolation between the two species in the production of queens and males. With choice experiments, we showed that queens and males strongly prefer to mate with conspecifics. Yet we did not detect post-mating barriers caused by genetic incompatibilities. Specifically, hybrids of all sexes and castes were found in the field and F1 hybrid workers did not show reduced viability compared to non-hybrid workers. To gain insights into the cues involved in species recognition, we analyzed the cuticular hydrocarbons of queens, males and workers and staged dyadic encounters between workers. Cuticular hydrocarbon profiles differed markedly between species, but were similar in <em>F. cinerea</em> and hybrids. Accordingly, workers also discriminated species, but they did not discriminate <em>F. cinerea</em> and hybrids. We discuss how the CHC-based recognition system of ants may facilitate the establishment of pre-mating barriers to hybridization, independent of hybridization costs.</span></p>
Data from: Evidence for divergence in phenology over morphology in response to limiting similarity in montane communities of Rhododendron
<p>1. The coexistence of closely related species is key to understanding the nature of biodiversity hotspots where in situ diversification has yielded rich communities of close relatives. Limiting similarity predicts that co-occurring species are differentiated in their niches; identifying the axes of differentiation in sympatric close relatives can thus help reveal the eco-evolutionary dynamics of community assembly. For flowering plants, these axes may be temporal (related to reproductive phenology) or morphological (related to functional traits).</p> <p>2. We collected fine-scale data on abundance, morphology, and phenology over a flowering season for 34 species of <em>Rhododendron</em> (Ericaceae) spanning a 2700 m elevation gradient in a nature reserve in the eastern Hengduan Mountains, China. We used null models to test for patterns of clustering versus overdispersion in species' abundances, phylogenetic relatedness, and functional traits across sites, and applied joint distribution models to examine the correlates of pairwise associations.</p> <p>3. We found that species tended to be spatially aggregated, indicating that communities are not strongly structured by competitive exclusion. At higher elevation sites, species tended to be vegetatively more similar (clustered) and closely related. Environmental variables, including climate and topography, were strong predictors of species' ranges. No evidence of niche differentiation was detected along spatial or morphological (functional) axes, but along the temporal axis, the phenology of co-occurring species showed significant divergence, and was less phylogenetically conserved compared to morphological traits.</p> <p>4. <em>Synthesis</em>. Local communities of <em>Rhododendron</em> in its center of diversity are structured by environmental filtering and the effects of limiting similarity. Evidence for the latter is apparent in the pervasive phenological divergence of co-occurring species, likely driven by reproductive interference from shared pollinators. The evolutionary lability of flowering time appears to render it the quickest path to coexistence for recently diverged species that experience secondary contact in this biodiversity hotspot.</p>
Data for "Kinetic limitations affect cloud condensation nuclei activity measurements under low supersaturation"
<p>Data for the manuscript "Kinetic limitations affect cloud condensation nuclei activity measurements under low supersaturation" by Tao et al.</p>
Data from: Different taxonomic and functional indices complement the understanding of herb-layer community assembly patterns in a southern-limit temperate forest
<p><span>The efficient conservation of vulnerable ecosystems in the face of global change requires a complete understanding of how plant communities respond to various environmental factors. We aim to demonstrate that a combined use of different approaches, traits, and indices representing each of the taxonomic and functional characteristics of plant communities will give complementary information on the factors driving vegetation assembly patterns. We analyzed variation across an environmental gradient in taxonomic and functional composition, richness, and diversity of the herb-layer of a temperate beech-oak forest that was located in northern Spain. We measured species cover and four functional traits: leaf dry matter content (LDMC), specific leaf area (SLA), leaf size, and plant height. We found that light is the most limiting resource influencing herb-layer vegetation. Taxonomic changes in richness are followed by equivalent functional changes in the diversity of leaf size but by opposite responses in the richness of SLA. Each functional index is related to different environmental factors even within a single trait (particularly for LDMC and leaf size). To conclude, each characteristic of a plant community is influenced by different and even contrasting factors or processes. Combining different approaches, traits, and indices simultaneously will help us understand how plant communities work.</span></p>
Data and code from: Birds optimize fruit size consumed near their geographic range limits
<p>This dataset is <a href="https://doi.org/10.5061/dryad.931zcrjs5">available from Dryad</a>. </p>
Data from: Is adaptation associated with long-term persistence beyond a geographic range limit?
<p>Adaptation to new habitats might facilitate species' range shifts in response to climate change. In 2005, we transplanted experimental populations of coastal dune plant <em>Camissoniopsis cheiranthifolia </em>into four sites within and one site beyond its poleward range limit. Beyond-range transplants had high fitness and often delayed reproduction. To test for adaptation associated with experimental range expansion, we transplanted descendants from beyond and within-range populations after 10 generations <em>in situ</em> into two sites within the range, one at the range edge, and two sites beyond the range. We expected to detect adaptation to beyond-range conditions due to substantial genetic variation within experimental populations and environmental variation among sites. However, individuals from beyond-range experimental populations were not fitter than those from within the range when planted at either beyond-range site, indicating no adaptation to the beyond-range site or beyond-range environments in general. Beyond-range descendants also did not suffer lower fitness within the range. Although reproduction was again delayed beyond the range, late reproduction was not favored more strongly beyond than within the range, and beyond-range descendants did not delay reproduction more than within-range descendants. Persistence in beyond-range environments may not require adaptation, which could allow a rapid response to climate change.</p>
Data archive for: Chain forming diatoms use different strategies to avoid diffusion limited N assimilation
<p>Data archive for: “Chain forming diatoms use different strategies to avoid diffusion limited N assimilation” published in <em><strong>Limnology and Oceanography (L&O), <a href="https://doi.org/10.1002/lno.12677">https://doi.org/10.1002/lno.12677</a></strong></em>.</p> <p> </p> <p>Dataset of single cell assimilation of DIC and NO<sub>3</sub><sup>-</sup> by <em>Skeletonema marinoi</em> in the exponential and stationary growth phase captured using secondary ion mass spectrometry (SIMS) and stable isotopic tracers. The data set contains the data used in the study and the outliers excluded from further analysis.</p> <p> </p> <p>Two strains (Strain 1 and Strain 2) were incubated during either the exponential or stationary growth phase over 24h with <sup>15</sup>N enriched NO<sub>3</sub><sup>-</sup> and <sup>13</sup>C enriched DIC. The cell specific DIC and NO<sub>3</sub><sup>-</sup> assimilation was measured using SIMS.</p> <p>See the main manuscript for a extensive experimental setup and more details.</p> <p><strong>Each file is uploaded as both a .CSV and .XLSX, so that you can choose which you prefer.</strong></p> <p> </p> <p><strong>Row description:</strong></p> <p>Each row represents one <em>Skeletonema marinoi cell</em>.</p> <p><strong>Column description: </strong></p> <p><em>Single.cell:</em> if the cell was a solitary cell (y) or not (n)</p> <p><em>End.cell:</em> if the cell was located at the end of a chain (y) or not (n)</p> <p><em>Chain_position:</em> a number assigned to identify every cell in a chain starting with 1 at one end of the chain</p> <p><em>Chain_length_numeric:</em> the total number of cells in the chain</p> <p><em>Chain_length_max_6: </em>the total number of cell in the chain, all numbers larger than 6 are pooled together and labelled >6</p> <p><em>Two_chain:</em> if the cell was in a chain consisting of only 2 cells (y) or not (n)</p> <p><em>Cell_information:</em> whether the cell was a solitary cell (Single cell), found in a two cell chain (Two cell chain), found at the end of a chain longer than 2 cell (End cell), or in the middle of a chain longer than 3 cells (Middle cell).</p> <p><em>Chain:</em> a identifying number assigned to differentiate the different chains</p> <p><em>C_fmol_per_cell_day:</em> DIC assimilated in fmol cell<sup>-1</sup> day<sup>-1</sup></p> <p><em>N_fmol_per_cell_day:</em> NO<sub>3</sub><sup>-</sup> assimilated in fmol cell<sup>-1</sup> day<sup>-1</sup></p> <p> </p> <p> </p>
Data for Experimental Assessment of Bowed-String Transient Playability Limits
<p>This dataset provides the raw recordings and analysis code used in the research article titled “Assessing Playability Limits of Bowed-String Transients using Experimental Measurements” (currently under review in <em>Acta Acustica</em>). The data explores the characteristics of bow-string interaction during transients, focusing on achieving successful attacks (Helmholtz motion). The recordings capture bridge force signals at different bow forces and bow accelerations.</p> <p>This dataset offers resources for researchers interested in:</p> <ul> <li>Investigating bow-string interaction phenomena</li> <li>Analysing characteristics of bowed-string transients</li> <li>Developing or validating models of bowed-string instruments</li> </ul> <p><strong>Data Organization:</strong></p> <p>The main folder of this repository contains the following:</p> <ul> <li><strong>raw_data:</strong> This subfolder stores the raw multi-channel audio recordings (.wav format) captured during the measurement sessions (a more detailed description later).</li> <li><strong>main.m:</strong> This script serves as the central processing unit for the analysis. It guides the processing of raw data from the "raw_data" folder, including: <ul> <li>Feature extraction: Calculates relevant features related to bow-string interaction in transients, such as transient time and friction coefficients.</li> <li>Guettler diagram generation: Creates Guettler diagrams, which are visualizations commonly used in bowed-string research.</li> </ul> </li> <li><strong>Additional Analysis Scripts:</strong> Alongside the "main.m" script, several other MATLAB scripts are provided for further in-depth analysis and visualisation of results. These scripts can be used to: <ul> <li><strong>averaged_transient_time_gd.m:</strong> Computes and analyzes the average pre-Helmholtz transient time across multiple repetitions (e.g., six repetitions).</li> <li><strong>waveform_examples.m:</strong> Plot examples of waveforms of bridge force captured during the experiments.</li> <li><strong>experimental_theoretical_limits.m:</strong> Analyzes and visualizes the theoretical limits of playability in comparison to the experimentally determined boundaries.</li> <li><strong>theoretical_limits.m:</strong> Visualizes the theoretical limits of playability computed with different coefficient of frictions.</li> <li><strong>string_parameters_from_pluck_response.m:</strong> Extracts string properties, such as tension or stiffness, from the analysis of pluck responses.</li> <li><strong>performance_setup.m:</strong> Assesses the overall performance and stability of the experimental setup.</li> </ul> </li> <li><strong>Publication-related scripts:</strong> Some additional scripts are present, named descriptively (e.g., "guettler_example.m", "gd_different_betas.m", or "comparison_repetitions.m"). These scripts were used specifically for generating figures presented in the research publication.</li> </ul> <p><strong>Note:</strong></p> <p>The specific functionalities of each additional script are likely explained within the code itself. For detailed information about how each script works, it's recommended to consult the code comments within the MATLAB scripts.</p> <p><strong>Data Organization of raw_data:</strong> The raw data is stored within a folder named “raw_data”. This folder contains subfolders for each measurement session, organized as follows:</p> <ul> <li><strong>first_repetitions</strong>: contains the repetitions of measurements done in consecutive days; <strong>after_dismounting:</strong> measurements done one month apart from the first repetitions; <strong>different_betas:</strong> measurements done at different position along the string;</li> <li><strong>Subfolder Naming:</strong> Subfolders are named using the date of the measurement session (YYYY-MM-DD format). If the recordings within a session were captured in reverse order, the subfolder name will include an "r" suffix (e.g., YYYY-MM-DD_r).</li> <li><strong>Data Content:</strong> Each subfolder contains the following: <ul> <li><strong>Raw Recordings (.wav):</strong> The primary data consists of multi-channel audio recordings (.wav format) captured during the measurement session. These recordings contain 11 channels of sensor data as described in the README.</li> <li><strong>Feature Files:</strong> In the subfolders, you will find additional files containing extracted features from the raw recordings. These features might include transient time, friction coefficients, or other characteristics calculated using the provided MATLAB scripts.</li> </ul> </li> </ul> <p><strong>Data Accessibility:</strong></p> <p>The raw recordings and code are provided in their original format to ensure transparency and facilitate reusability for further research on playability of bowed-string.</p> <p><strong>Additional Notes:</strong></p> <ul> <li>The code requires MATLAB software to run. Additional Toolboxes: Statistics and Machine Learning Toolbox, Optimization Toolbox, Signal Processing Toolbox.</li> </ul> <p> </p>
Data for LIGO operates with quantum noise below the Standard Quantum Limit
<p>This repository hosts data sets used to create all the figures in the paper "LIGO operates with quantum noise below the Standard Quantum Limit". </p> <p> </p> <p>Version 1: initial upload</p> <p>Version 2: Add README.txt and MCMC set-up code</p>
Data from: Moist heatwaves intensified by entrainment of dry air that limits deep convection
<p>Moist heatwaves in the tropics and subtropics pose substantial risks to society, yet the dynamics governing their intensity are not fully understood. The onset of deep convection arising from hot, moist near-surface air has been thought to limit the magnitude of moist heatwaves. Here, we use reanalysis data, and output from the Coupled Model Intercomparison Project Phase 6 and model entrainment perturbation experiments, to show that entrainment of unsaturated air in the lower-free troposphere (roughly 1--3 km above the surface) limits deep convection, thereby allowing much higher near-surface moist heat. Regions with large-scale subsidence and a dry lower-free troposphere, such as coastal areas adjacent to hot and arid land, are thus particularly susceptible to moist heat waves. Even in convective regions such as the northern Indian Plain, southeast Asia, and interior South America, the lower-free tropospheric dryness strongly affects the maximum surface wet-bulb temperature. As the climate warms, the dryness (relative to saturation) of the lower-free tropospheric air increases; this allows for a larger increase of extreme moist heat, further elevating the likelihood of moist heatwaves.</p>
Biomass encounter rates limit the size scaling of feeding interactions: trial data
<p>Experimental trial data for the publication: Biomass encounter rates limit the size scaling of feeding interactions.</p>
Resolution limit of data-driven coarse-grained models spanning chemical space
<p>This repository contains all databases referenced in the supporting information of the paper titled "Resolution limit of data-driven coarse-grained models spanning chemical space" by Kiran H. Kanekal and Tristan Bereau.</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.