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.
13,864
datasets available to search
ShareScore release 0.9.0
Dataset results
13,864 results for “staging”
Contents and isotope carbon compositions (δ13C) of main biochemical fractions in organs at different growth stages in Phyllostachys edulis
<p><em><span>Phyllostachys edulis</span></em><span> is a spectacularly fast-growing species that completes its height growth within </span><span>two</span><span> months after the shoot emerges </span><span>without producing leaves</span><span> (fast-growing period, FGP). This phase was considered heterotrophic, the carbon necessary for the growth being transferred from the mature culms via the rhizomes, although previous studies observed key enzymes and anatomical features related to C<sub>4</sub>-carbon fixation in developing culms. </span><span>We tested whether C<sub>4</sub>-photosynthesis or dark-CO2 fixation through anaplerotic reactions significantly contributes to the FGP, resulting in differences in the natural abundance of </span><span>δ<sup>13</sup>C</span><span> in bulk organic matter and organic compounds. Further, pulse-<sup>13</sup>CO<sub>2</sub>-labelling was performed on developing culms, either from the surface or from the internal hollow, to ascertain whether significant CO<sub>2</sub> fixation occurs in developing culms.</span><span> δ<sup>13</sup>C of</span><span> young </span><span>shoots and developing culms were higher (-26.3–-26.9‰) </span><span>compared to all organs of mature bamboos (-28.4</span><span>–</span><span>-30.1</span><span>‰). </span>Developing culms contained chlorophylls, most observed in the skin tissues. After <span>pulse-<sup>13</sup>CO<sub>2</sub>-labelling, t</span>he polar fraction extracted from the skin tissues was slightly enriched in <sup><span>13</span></sup><span>C, </span>and only a weak <sup><span>13</span></sup><span>C </span>enrichment was observed in inner tissues<span>. Main carbon source sustaining the FGP was not assimilated by the developing culm, while a </span><span>limited anaplerotic fixation of respired CO<sub>2</sub></span><span> cannot be excluded and is </span>more likely than <span>C<sub>4</sub>-</span>photosynthetic carbon fixation<span>.</span></p>
Data from: Potential of MALDI−TOF MS-based proteomic fingerprinting for species identification of Cnidaria across classes, species, regions and developmental stages
<p><span>Morphological identification of cnidarian species can be difficult throughout all life stages due to the lack of distinct morphological characters. Moreover, in some cnidarian taxa genetic markers are not fully informative, and in these cases combinations of different markers or additional morphological verifications may be required. Proteomic fingerprinting based on MALDI-TOF mass spectra was previously shown to provide reliable species identification in different metazoans including some cnidarian taxa. For the first time, we tested the method across four cnidarian classes (Staurozoa, Scyphozoa, Anthozoa, Hydrozoa) and included different scyphozoan life-history stages (polyp, ephyra, medusa) into our dataset. Our results revealed reliable species identification based on MALDI-TOF mass spectra across all taxa with species-specific clusters for all 23 analyzed species. In addition, proteomic fingerprinting was successful for distinguishing developmental stages, still by retaining a species specific signal. Furthermore, we identified the impact of different salinities in different regions (North Sea and Baltic Sea) on proteomic fingerprints to be negligible. In conclusion, the effects of environmental factors and developmental stages on proteomic fingerprints seem to be low in cnidarians. This would allow using reference libraries built up entirely of adult or cultured cnidarian specimens for the identification of their juvenile stages or specimens from different geographic regions in future biodiversity assessment studies.</span></p>
Fig. 26 in Description of immature stages of Hoplia mexicana Harold and H. squamifera Burmeister (Coleoptera, Melolonthidae, Hopliinae)
Fig. 26. Male pupa of Hoplia squamifera, with third instar exuviae on its abdominal apex.
Figs. 25–26 in Immature stages of Temenis laothoe meridionalis Ebert (Lepidoptera, Nymphalidae, Biblidinae)
Figs. 25–26. Temenis laothoe meridionalis. Egg: 25, lateral view; 26, dorsal view. Scale = 1 mm.
Saliva and plasma metabolome analysis in mares during anestrus, estrus cycle and early gestation for the identification of salivary biomarkers of reproductive stages.
<p>1H-NMR spectra of saliva and blood samples collected at seven physiological stages from six pony mares:</p> <ul> <li>in seasonal anestrus,</li> <li>in the follicular phase 3 days, 2 days and 1 day before ovulation, and the day when ovulation was detected,</li> <li>in the luteal phase 6 days after ovulation,</li> <li>in gestation 18 days after ovulation and artificial insemination.</li> </ul> <p> </p> <p>The 42 saliva samples were prepared for <sup>1</sup>H-NMR by precipitation of proteins using methanol. Briefly, 200 µL of saliva was mixed with 400 µL of cold methanol and vortexed. The mixtures were cooled at -20°C for 20 min before centrifugation at 15,000 × g for 15 min at 4°C. The supernatants were recovered and transferred to glass tubes for further evaporation of the solvent. For the 42 plasma samples, a modified Folch’s method (200 µL of plasma, 300 µL of cold methanol and 500 µL of cold chloroform) was preferred to extract metabolites and eliminate proteins and lipids from the plasmas in order to avoid the overlapping of the metabolites of interest with broad lipid and protein signals. The samples were vortexed during 1 min. The polar fractions, containing the metabolites, were separated after centrifugation at 15,000 × g for 15 min at 4°C and 300 µL of the samples were collected in glass tubes. The solvent of saliva supernatants and plasma polar fractions were evaporated in a SpeedVac (Thermo Fisher Scientific, Illkirch-Graffenstaden, France) for 2 h at 35°C followed by another 2 h at room temperature before storage at -20°C until analysis. Five quality control samples for the saliva and plasma experiments were prepared by pooling a fraction of each samples (either saliva or plasma) and were further processed with all the other samples.</p> <p>Before <sup>1</sup>H-NMR analyses, the dried residues were recovered in 210 μL phosphate buffer (pH 7.4, 200 mM) prepared in D<sub>2</sub>O supplemented with 152 µM (final concentration) of 3-trimethylsilylpropionic acid (TSP) as internal reference and transferred to 3 mm NMR tubes.</p> <p><sup>1</sup>H-NMR spectra of the saliva and plasma samples were acquired at 298K on an AVANCE III HD 600 MHz system (Bruker Biospin, Karlsruhe, Germany) equipped with a Bruker 5 mm TCI CryoProbe with Z-gradient. <sup>1</sup>H-NMR spectra were recorded with the «noesypr1d» pulse sequence with a relaxation delay of 20 s, on a sweep width of 12 ppm, 64 k data points, an acquisition time of 4.56 s, with 64 transients, and 8 dummy scans. Sample shimming was performed automatically on the D<sub>2</sub>O signal.</p>
Search strategies for generic justification of 18F-PSMA PET/CT in the staging of primary prostate cancer and the restaging of recurrent and metastatic prostate cancer
<p>The dataset includes the complete, reproducible search strategies for all literature databases searched during this project. The search strategies address the following research questions:</p> <p>RQ 1: In the primary staging of patients with high risk prostate cancer, what is the sensitivity, specificity and diagnostic accuracy of 18F-PSMA?</p> <p>RQ 2: In patients with biochemically recurrrent prostate cancer, what is the sensitivity, specificity and diagnostic accuracy of 18F-PSMA?</p> <p>RQ 3: What is the risk of adverse events (including dose) associated with receiving 18F-PSMA?</p> <p>RQ 4: Is 18F-PSMA uptake associated with response to treatments for metastatic prostate cancer?</p>
Data for: Responses to saltwater exposure vary across species, populations, and life-stages in anuran amphibians
<p><span>To predict the impacts of environmental change on species, we must first understand the factors that limit the present-day ranges of species. Most anuran amphibians cannot survive at elevated salinities, which may drive their distribution in coastal locations. Previous research showed that coastal <em>Hyla cinerea</em> are locally adapted to brackish habitats in North Carolina (USA). Although <em>Hyla squirella</em> and <em>Hyla chrysoscelis </em>both inhabit coastal wetlands nearby, they have not been observed in saline habitats. We take advantage of naturally occurring microgeographic variation in coastal wetland occupancy exhibited by these congeneric treefrog species to explore how salt exposure affects oviposition site choice, hatching success, early tadpole survival, plasma osmolality, and tadpole body condition across coastal and inland locations. We observed higher survival among coastal</span><span> <em>H. cinerea</em> tadpoles than inland <em>H. cinerea</em>, which corroborates previous findings. But contrary to expectations, coastal <em>H. cinerea</em> had lower survival than <em>H. squirella</em> and <em>H. chrysoscelis</em>, indicating that all three species may be able to persist in saline wetlands. We also observed differences in tadpole plasma osmolality across species, locations, and salinities, but these differences were not associated with survival rates in saltwater. Instead, coastal occupancy may be affected by stage-specific processes like higher probability of total clutch loss as shown by inland <em>H. chrysoscelis</em> or maladaptive egg deposition patterns as shown by inland <em>H. squirella</em>. </span><span>Although we expected saltwater to be the primary filter driving species distributions along a coastal salinity gradient, it is likely that the factors dictating anuran ranges along the coast involve stage-, species-, and location specific processes that are mediated by ecological processes and life history traits.</span></p>
Gait-related spectral perturbations across stages of split-belt treadmill adaptation
<p>This mobile brain body imaging experiment used high-density electroencephalography to investigate brain activity correlated to gait adaptation during split-belt treadmill walking. 30 participants completed an abrupt split-belt walking paradigm (2:1 belt speed ratio). Videos show gait-related spectral perturbations across stages of split-belt adaptation in group component clusters near the sensorimotor, posterior parietal, and cingulate cortices. </p>
Early-Stage Bifurcation of Crystallization in a Sphere
<p>This is the raw data for the manuscript:</p> <p>Early-Stage Bifurcation of Crystallization in a Sphere</p> <p>All data are sorted in folders according to their appearance in the figures of the main manuscript.</p> <p>Data types:<br> * Particle position files (text format): .pos<br> * Data files (text format): .dat, .txt, .rdf<br> * Tables: .xlsx<br> * Images/Graphics: .tif, .tiff, .png, .eps, .pdf<br> * Gnuplot scripts: .gnu, .plot<br> * Shell scripts: .sh</p>
Stage-specific genotype-by-environment interactions determine yield components in wheat
<p> </p> <p>The tables (climate_data.csv, and Yield_data.csv) include the recorded climatic and measured yield components data from multi-environment field trails (2014-2017). The table (soil_water_data.csv) presents the simulated water content for the experiments. The tables (Coefficients_data.csv, and multiple_regression_coefficients_data.csv) present the log p-values of comparing models M1, M2, and M3 and their coefficients. All the necessary information to read these datasets is provided in the table (read_me.csv). </p>
Multi-stage Development within Anisotropy Insight of an Anticyclone Eddy in Northwestern South China Sea in 2021
<p>data For Multi-stage Development within Anisotropy Insight of an Anticyclone Eddy in Northwestern South China Sea in 2021. </p>
Sex differences in the behavioural traits across ontogenetic stages in a sexually-size dimorphic spider
<p><span>Selection acts differently on females and males due to differences in potential reproductive rates, driving the evolution of sex differences in traits, including growth and behaviour. Additionally, selection pressures vary during an individual's ontogeny, with growth being crucial in early developmental stages and reproduction during adulthood, leading to age- and sex-specific behavioural strategies. In this study, we investigated a sexually-size dimorphic spider, the raft spider (<em>Dolomedes fimbriatus</em>), where females are substantially larger than males. We repeatedly observed spiders from juvenile to adult stages, examining boldness, voracity towards prey, and probability to attack. Our findings revealed that females exhibited greater boldness, voracity, and probability to back-attack the simulated attacker compared to males. Notably, the observed behaviours changed during ontogeny, with sex differences in the magnitudes and directions of change, indicating distinct life history strategies between sexes. Moreover, we detected positive associations between body mass or age and behavioural traits, supporting a proposed positive feedback loop between assets and behaviour. While mass and age were not significant confounding predictors in the analyses of sex differences in behaviour, some collinearity was present between sex, mass, and age, so that their effects on behavioural differences between sexes cannot be conclusively disentangled. Repeatability of behaviours was low but significant for boldness and probability to attack, with similar estimates between sexes. These results underscore the importance of considering sex-specific life history strategies in behavioural trait studies. </span></p>
Mothers in a cooperatively breeding bird increase investment per offspring at the pre-natal stage when they will have more help with post-natal care
<p>In many cooperative societies, including our own, helpers assist with the post-natal care of breeders’ young and may thereby benefit the post-natal development of offspring. Here, we present evidence of a novel mechanism by which such post-natal helping could also have beneficial effects on pre-natal development: By lightening post-natal maternal workloads, helpers may allow mothers to increase their pre-natal investment per offspring. We present the findings of a decade-long study of cooperatively breeding white-browed sparrow-weaver, <em>Plocepasser mahali</em>, societies. Within each social group, reproduction is monopolized by a dominant breeding pair, and non-breeding helpers assist with nestling feeding. Using a within-mother reaction norm approach to formally identify maternal plasticity, we demonstrate that when mothers have more female helpers, they decrease their own post-natal investment per offspring (feed their nestlings at lower rates) but increase their pre-natal investment per offspring (lay larger eggs, which yield heavier hatchlings). That these plastic maternal responses are predicted by female helper number, and not male helper number, implicates the availability of post-natal helping per se as the likely driver (rather than correlated effects of group size), because female helpers feed nestlings at substantially higher rates than males. We term this novel maternal strategy “maternal front-loading” and hypothesize that the expected availability of post-natal help either allows or incentivizes helped mothers to focus maternal investment on the pre-natal phase, to which helpers cannot contribute directly. The potential for post-natal helping to promote pre-natal development further complicates attempts to identify and quantify the fitness consequences of helping.</p>
Ultrasonic Pulse Transmission Tests: Datasets - Test Series 4, Cement Paste at Early Stages
<p>The test series was created to receive information about the impact of the behaviour of the piezoelectric shear wave sensor on the measurement results of ultrasonic transmission tests performed on cement pastes at early stages. The approach for the test series was to vary the parameters water-cement-ratio and pulse-width. This results in a two-dimensional test parameter grid (water-cement-ratio versus pulse-width). Tests were performed for each grid point in order to receive information needed to optimize the pulse width for the shear wave sensors, but also a possible dependency between material behaviour and pulse-width. The materials tested were blends from ordinary Portland cement and tap water. The test methods used were ultrasonic pulse transmission method with combined compression- and shear wave measurements, gravimetric density tests (fresh paste density, solid specimen density) and hydration temperature tests. All test data and metadata are summarized into datasets using GNU Octave's open binary file format.</p>
Ultrasonic Pulse Transmission Tests: Datasets - Test Series 1, Cement Paste at Early Stages
<p>The test series was created to receive information about the material behaviour of cement pastes at early stages. The approach for this test series was to vary the parameters water-cement-ratio and distance-between-actuator-and-sensor. This results in a two-dimensional test parameter grid (water-cement-ratio versus distance-between-actuator-and-sensor). For each point of the parameter grid, tests were performed several times to check the stability of the testing method. The materials tested were blends from ordinary Portland cement and tap water. The test methods used were ultrasonic pulse transmission method with combined compression- and shear wave measurements, gravimetric density tests (fresh paste density, solid specimen density) and hydration temperature tests. All test data and metadata are summarized into datasets using GNU Octave's open binary file format.</p>
Multimodal Fusion of Liquid Biopsy and CT Enhances Differential Diagnosis of Early-stage Lung Adenocarcinoma
<p>This research explores the potential of multimodal fusion for the differential diagnosis of early-stage lung adenocarcinoma (LUAD) (tumor sizes < 2 cm). It combines liquid biopsy biomarkers, specifically extracellular vesicle long RNA (evlRNA) and the computed tomography (CT) attributes.</p><p>It includes 4 files:</p><p>1. gene expression matrix : gene expression matrix for all samples (normalized read counts) .</p><p>2. evlRNA Rad features: 6 image features, 17 evlRNA features and labels</p><p>3. differentially expressed genes: Differentially expressed genes in LUAD patients compared with Benign individuals.</p><p>4. raw data: raw data used to for figure and table.</p>
A key evolutionary step determining osmoregulatory ability for freshwater colonisation in early life stages of fish
<div class="page"> <div class="layoutArea"> <div class="column"> <p>Colonisation of freshwater habitats by marine animals is a remarkable evolutionary event that has enriched biodiversity in freshwater ecosystems. The acquisition of tolerance to hypotonic stress during early life stages is presumed to be essential for their successful freshwater colonisation, but very little empirical evidence has been obtained to support this idea. This study aimed to comprehend the evolutionary changes in osmoregulatory mechanisms that enhance larval freshwater tolerance in amphidromous fishes, which typically spend their larval period in marine (ancestral) habitats and the rest of their life history stages in freshwater (derived) habitats. We compared the life history patterns and changes in larval survivorship and gene expression depending on salinity among three congeneric marine-originated amphidromous goby species (<em>Gymnogobius</em>), which had been suggested to differ in their larval dependence on freshwater habitats. An otolith microchemical analysis and laboratory-rearing experiment confirmed the presence of freshwater residents only in <em>G. urotaenia</em> and higher larval survivorship of this species in the freshwater condition than in the obligate amphidromous <em>G. petschiliensis</em> and <em>G. opperiens</em>. Larval whole-body transcriptome analysis revealed that <em>G. urotaenia</em> from both amphidromous and freshwater-resident populations exhibited the greatest differences in expression levels of several osmoregulatory genes, including <em>aqp3</em>, which is critical for water discharge from their body during early fish development. The present results consistently support the importance of enhanced freshwater tolerance and osmoregulatory plasticity in larval fish to establish freshwater forms, and further identify key candidate genes for larval freshwater adaptation and colonisation in the goby group.</p> </div> </div> </div>
The Indian (stage set 5 of 5)
Attribution: National Library of Scotland, V&A Dundee, and John Byrne. Visit https://www.nls.uk/collections/theatre/cheviot-3d for full details Source: Objaverse 1.0 / Sketchfab
The Stag (stage set 1 of 5)
Attribution: National Library of Scotland, V&A Dundee, and John Byrne. Visit https://www.nls.uk/collections/theatre/cheviot-3d for full details Source: Objaverse 1.0 / Sketchfab
RK17 F00001 Concretion Stage 6
RK17 F00001 is a large concretion found during the archaeological excavation of the Rooswijk in 2017. The concretion was excavated by conservators and archaelogists in the conservation facility. In 2017 and 2018, the shipwreck of the Rooswijk, a 300 year old Dutch East India Company (VOC) ship which sank on the treacherous Goodwin Sands in January 1740 off the coast of England, was excavated by an international team of maritime archaeologists. Post-excavation work began straight after each excavation campaign, focusing on ex-situ research, the conservation and analysis of the artefacts and will continue until the end of the project. The #Rooswijk1740 project is funded and led by the Cultural Heritage Agency of the Netherlands (Ministry of Education, Science and Culture), in collaboration with project partner Historic England and UK-contractor MSDS Marine. Follow #Rooswijk1740 on social media and https://english.cultureelerfgoed.nl/topics/maritime-heritage/shipwrecks/rooswijk1740 Source: Objaverse 1.0 / Sketchfab
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.