Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
2,395
datasets available to search
ShareScore release 0.9.0
Dataset results
2,395 results for “Contrast”
Water use partitioning of native and non-native tree species in riparian ecosystems under contrasting climatic conditions
<p>We aimed at evaluating water-source partitioning between native and non-native tree species coexisting in central Spain floodplains; determining the dependency on drought stress of such water-sources-use; and assessing if the reliance on deeper water sources relates with physiological and growth performance. We assessed water-uptake depth, leaf functional traits related to physiological performance and growth of native (<em>Populus alba</em>) and non-native trees <em>(Ailanthus altissima, Robinia pseudoacacia</em>) coexisting in riparian forests under different drought conditions (drier, intermediate and wetter). We analyzed δ<sup>2</sup>H and δ<sup>18</sup>O isotopes in xylem water and in soil water from top, mid and deep soil depths and determined the contribution of each water source to plant xylem water. Leaf traits related with resource use and secondary growth were assessed for each species.</p>
Metabarcoding reveals seasonal and spatial patterns of arthropod community assemblages in two contrasting habitats
<p>Illumina reads, representing partial COI barcode. </p> <p>Quality filtered FLS and SLS reads:<br> Samples from oasis<br> FLS reads <br> 150615_I270_FCC7K1NACXX_L4_RSZAKPI005096-37_1.fq.gz<br> 150615_I270_FCC7K1NACXX_L4_RSZAKPI005096-37_2.fq.gz<br> SLS reads<br> 150615_I270_FCC7K1NACXX_L4_RSZAXPI005095-40_1.fq.gz<br> 150615_I270_FCC7K1NACXX_L4_RSZAXPI005095-40_2.fq.gz</p> <p>Samples from desert:<br> FLS reads<br> 150615_I270_FCC7K1NACXX_L4_RSZAKPI005098-39_1.fq.gz<br> 150615_I270_FCC7K1NACXX_L4_RSZAKPI005098-39_2.fq.gz<br> SLS reads<br> 150615_I270_FCC7K1NACXX_L4_RSZAXPI005097-41_1.fq.gz<br> 150615_I270_FCC7K1NACXX_L4_RSZAXPI005097-41_2.fq.gz</p>
Storyline data used in the paper "Storylines reveal contrasting thermodynamic effects of climate change on 2020/21 East Asian cold extremes"
<p>We provide the storyline data (in NetCDF format) used in the paper:”<strong>Storylines reveal contrasting thermodynamic effects of climate change on 2020/21 East Asian cold extremes”. </strong>The data is structured five .tar.gz files (Preindustrial, Present, 2 and 4 K warmer climates) containing all variables used in this each climates. The data includes the five ensemble members (E1 to E5) and ensemble mean variables at winter season (DJF) in 2020/2021.</p> <p>Files of simulation ensemble member data are named as:</p> <p><span> </span>“AWICM1_ssp370/hist_f{begin year}_n2017_T20e24_{variable name}_E{ensemble member}_DJF-{years}_dailymean.nc”</p> <p>Files of simulation ensemble-mean data are names as:</p> <p>“AWICM1_ssp370/hist_f{begin year}_n2017_T20e24_{variable name}_DJF-{years}_ensmean.nc”</p> <p>Files of free-run (CMIP6) data are names as:</p> <p>“freerun_{variable name}_DJF-{year}_ensmean_31days-runmean_11years-ydaymean.nc”</p> <p>Variables includes:<span> </span></p> <ul> <li>Mean 2m Temperature (t2m)</li> </ul> <ul> <li>Downward net surface solar radiation (srads)</li> </ul> <ul> <li>Total cloud cover (aclcov)</li> <li>Downward solar radiation at clear sky (rsdscs)</li> <li>sea ice concentration (friac)</li> </ul> <p>Only for present climate:</p> <ul> <li>Zonal/meridional wind at 850hPa (u850,v850)</li> <li>500 hPa Geopotential Height (z500)</li> </ul> <p><span> </span></p>
SpaMask: Dual Masking Graph Autoencoder with Contrastive Learning for Spatial Transcriptomics
<p>Understanding the spatial locations of cell within tissues is crucial for unraveling the organization of cellular diversity. Recent advancements in spatial resolved transcriptomics (SRT) have enabled the analysis of gene expression while preserving the spatial context within tissues. Spatial domain characterization is a critical first step in SRT data analysis, providing the foundation for subsequent analyses and insights into biological implications. Graph neural networks (GNNs) have emerged as a common tool for addressing this challenge due to the structural nature of SRT data. However, current graph-based deep learning approaches often overlook the instability caused by the high sparsity of SRT data. <strong>Masking mechanisms</strong>, as an effective self-supervised learning strategy, can enhance the robustness of these models. To this end, we propose <strong>SpaMask, dual masking graph autoencoder with contrastive learning for SRT analysis</strong>. Unlike previous GNNs, SpaMask masks a portion of spot nodes and spot-to-spot edges to enhance its performance and robustness. SpaMask combines <strong>Masked Graph Autoencoders (MGAE) and Masked Graph Contrastive Learning (MGCL)</strong> modules, with MGAE using node masking to leverage spatial neighbors for improved clustering accuracy, while MGCL applies edge masking to create a contrastive loss framework that tightens embeddings of adjacent nodes based on spatial proximity and feature similarity. We conducted a comprehensive evaluation of SpaMask on <strong>eight datasets from five different platforms</strong>. Compared to existing methods, SpaMask achieves superior clustering accuracy and effective batch correction.</p>
Data from: Contrasting effects of habitat discontinuity on three closely related fungivorous beetle species with diverging host-use patterns and dispersal ability
Understanding how landscape structure influences biodiversity patterns and ecological processes is essential in ecological research and conservation practices. Forest discontinuity is a primary driver affecting the population persistence and genetic structure of forest-dwelling species. However, the actual impacts on populations are highly species-specific. In this study, we tested whether dispersal capability and host specialization are associated with susceptibility to forest discontinuity using three closely related, sympatric fungivorous ciid beetle species (two host specialists, Octotemnus assimilis and O. crassus; one host generalist, O. kawanabei). Landscape genetic analyses and the estimation of effective migration surfaces (EEMS) method consistently demonstrated contrasting differences in the relationships between genetic structure and configuration of forest land cover. Octotemnus assimilis, one of the specialists with a presumably higher dispersal capability due to lower wing loading, lacked a definite spatial genetic structure in our study landscape. The remaining two species showed clear spatial genetic structure, but the results of landscape genetic analyses differed between the two species: while landscape resistance appeared to describe the spatial genetic structure of the specialist O. crassus, genetic differentiation of the generalist O. kawanabei was explained by geographic distance alone. This finding is consistent with the prediction that non-forest areas act more strongly as barriers between specialist populations. Our results suggest that differences in host range can influence the species-specific resistance to habitat discontinuity among closely related species inhabiting the same landscape.
Figure 7 in Phase contrast X-ray synchrotron microtomography and the oldest damselflies in amber (Odonata: Zygoptera: Hemiphlebiidae)
Figure 7. Electrohemiphlebia barucheli gen. et sp. nov., holotype ARC 372.1, legs.
Figure 4 in Phase contrast X-ray synchrotron microtomography and the oldest damselflies in amber (Odonata: Zygoptera: Hemiphlebiidae)
Figure 4. Electrohemiphlebia barucheli gen. et sp. nov., holotype ARC 372.1, frontal view of head.
Deferiprone for the Prevention of Contrast-Induced Acute Kidney Injury
ClinicalTrials.gov study NCT01146925. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Contrast Nephropathy Associated FFA
ClinicalTrials.gov study NCT06418542. IPD Sharing: UNDECIDED. Countries: 1. Publications: 0.
Contrast-Enhanced Ultrasound Diagnosis of Acute Appendicitis
ClinicalTrials.gov study NCT03295656. IPD Sharing: NO. Countries: 1. Publications: 0.
Non-Contrast Magnetic Resonance Angiography Assessment of Patients Referred for Transcatheter Aortic Valve Implantation
ClinicalTrials.gov study NCT02007967. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Contrast-enhanced Ultrasound for Follow-up After Radiofrequency Ablation of Kidney Lesions
ClinicalTrials.gov study NCT01141816. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Contrasting the Brain Effects of Risperidone and Invega With Functional Magnetic Resonance Imaging (fMRI) and Positron Emission Tomography (PET) Scanning
ClinicalTrials.gov study NCT00937261. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Quantitative Imaging Biomarker Prospective Validation of Dynamic Contrast-enhanced MRI as a Metric of Orodental Injury After Radiotherapy (QI-ProVE-MRI)
ClinicalTrials.gov study NCT06586892. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Evaluation of a New Oral Contrast Agent for MR Enterography in the Assessment of Crohn Disease in the Small Bowel
ClinicalTrials.gov study NCT00587210. IPD Sharing: NO. Countries: 1. Publications: 0.
An Imaging Technology, Contrast-Enhanced Mammography, in Predicting Breast Cancer
ClinicalTrials.gov study NCT04871139. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Evaluating Renal Masses Using Ultrasound Intravenous Microbubble Contrast
ClinicalTrials.gov study NCT00671411. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Chest CT Using Low-concentration Iodine Contrast Media
ClinicalTrials.gov study NCT05967117. IPD Sharing: NO. Countries: 1. Publications: 0.
Prevention of Contrast Induced Nephropathy With Sodium Bicarbonate
ClinicalTrials.gov study NCT00472563. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Contrast Training, Post-activation Countermovement Jump Performance in High Strength Male
ClinicalTrials.gov study NCT05987046. IPD Sharing: Not stated. Countries: 1. Publications: 0.
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.