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.
1,392
datasets available to search
ShareScore release 0.9.0
Dataset results
1,392 results for “accumulation”
Datasets and Codes - Toward improved representation of reservoir operation at the larger scales: The role of calibration, the trade-off between reservoir release and storage, and the issue of error accumulation in long-term simulations
Open the record for dataset details and reuse information.
Code to support 'Optimal elevations for afforestation and reforestation to enhance biomass carbon accumulation in the tropics'
Open the record for dataset details and reuse information.
Table 1 in Nutritional restriction triggers callose accumulation on the sieve plates of the funiculus of developing bean seeds
<p><b>Table 1</b> Distribution of normal and enlarged sieve plates by the accumulation of callose in sections of the funiculus of normally developed seeds of 25 DAA, and in seeds that continued (20 + 5 L) or stopped their development (20 + 5 S) after 5 days the fruits had been detached from the plants. Lower and upper funiculus sections indicate that they were next to the placenta or the seed coat, respectively.</p><table><tbody><tr><th>Funiculus</th><th>Total plates</th><th>Normal (%)</th><th>Thickened (%)</th></tr></tbody><tbody><tr><th>25 DAA</th><td></td><td></td><td></td></tr><tr><th>Lower</th><td>17</td><td>100</td><td>0</td></tr><tr><th>Medium</th><td>21</td><td>100</td><td>0</td></tr><tr><th>Upper</th><td>70</td><td>100</td><td>0</td></tr><tr><th>20 + 5 L</th><td></td><td></td><td></td></tr><tr><th>Lower</th><td>429</td><td>100</td><td>0</td></tr><tr><th>Medium</th><td>341</td><td>99.7</td><td>0.29</td></tr><tr><th>Upper</th><td>218</td><td>99</td><td>0.91</td></tr><tr><th>20 + 5 S</th><td></td><td></td><td></td></tr><tr><th>Lower</th><td>160</td><td>57.5</td><td>42.50</td></tr><tr><th>Medium</th><td>143</td><td>63.3</td><td>36.60</td></tr><tr><th>Upper</th><td>96</td><td>71.4</td><td>28.80</td></tr></tbody></table>
Data from: Accumulation rates and sources of external nitrogen in decaying wood in a Norway spruce dominated forest
Microbial respiration in dead wood contributes substantially to the long-lived forest carbon (C) pool and has a significant role in the forest nitrogen (N) cycle. Wood N content has been found to increase during the decay process; however, temporal dynamics and the sources of this external N remain unclear. To examine N dynamics at various stages of decomposition, we combined high variety of analytical methods on Norway spruce logs, including wood δ15N, N%, 14C-dating, fungal composition and N2 fixation rate. For N2 fixation rate, we also determined its dependency on ambient temperature and decay class, when estimating annual N2 fixation rates for our study site. N2 fixation was observed to have a major role in increasing wood N content during decay. For the most decayed wood, it accounted for 60% of the total N accumulation. Compared to other reports, where the annual temperature was similar to our site, the calculated annual fixation rate of 85 g N ha−1 year−1 is a low estimate. However, previous studies have not taken appropriately into account the dependency of N2 fixation rate on ambient temperature and decay class. Our δ15N model describing the sources of external N, statistical analysis and the fungal DNA composition of decayed wood suggest that other sources of external N accumulating in wood were soil-foraging wood-decay fungi and mycorrhizal fungi. Our study improves knowledge of the temporal dynamics of N accumulation in wood with advancing wood decay, the potential sources of external N and their relative significance. All of these factors are important for nitrogen as well as carbon models dealing with ecosystem responses to climate change.
Data from: Efferocytosis perpetuates substance accumulation inside macrophage populations
In both cells and animals, cannibalism can transfer harmful substances from the consumed to the consumer. Macrophages are immune cells that consume their own dead via a process called cannibalistic efferocytosis. Macrophages that contain harmful substances are found at sites of chronic inflammation, yet the role of cannibalism in this context remains unexplored. Here we take mathematical and experimental approaches to study the relationship between cannibalistic efferocytosis and substance accumulation in macrophages. Through mathematical modelling, we deduce that substances which transfer between individuals through cannibalism will concentrate inside the population via a coalescence process. This prediction was confirmed for macrophage populations inside a closed system. We used image analysis of whole slide photomicrographs to measure both latex microbead and neutral lipid accumulation inside murine bone marrow-derived macrophages (104-105 cells) following their stimulation into an inflammatory state ex vivo. While the total number of phagocytosed beads remained constant, cell death reduced cell numbers and efferocytosis concentrated the beads among the surviving macrophages. % from small to large numbers per cell. Since lipids are also conserved during efferocytosis, these cells accumulated lipid derived from the membranes of dead and consumed macrophages (becoming macrophage foam cells). Consequently, enhanced macrophage cell death increased the rate and extent foam cell formation. Our results demonstrate that cannibalistic efferocytosis perpetuates exogenous (e.g. beads) and endogenous (e.g. lipids) substance accumulation inside macrophage populations. As such, cannibalism has similar detrimental consequences in both cells and animals.
Derivation and utility of an Aβ-PET pathology accumulation index to estimate Aβ load
<p><b>Abstract</b></p> <p><b>Objective: </b>To evaluate a novel Aβ-PET based quantitative measure (Aβ accumulation index [Aβ-index]), including the assessment of its ability to discriminate between subjects based on Aβ-status using visual-read, CSF Aβ42/Aβ40 and <i>post-mortem</i> neuritic-plaque burden as standards of truth.</p> <p><b>Methods: </b>1121 subjects (with and without cognitive impairment) scanned with Aβ-PET: Swedish BioFINDER, n=392, [<sup>18</sup>F]flutemetamol; ADNI, n=692, [<sup>18</sup>F]florbetapir; a phase-3 end-of-life study, n=100, [<sup>18</sup>F]flutemetamol). The relationships between Aβ-index and standardized uptake values ratios (SUVR) from Aβ-PET were assessed. The diagnostic performance of Aβ-index and SUVR were compared when using visual reads, CSF Aβ42/Aβ40 and Aβ-histopathology as reference standards.</p> <p><b>Results:</b> Strong associations were observed between Aβ-index and SUVR (R<sup>2</sup>, BioFINDER, 0.951; ADNI, 0.943, end-of-life, 0.916). Both measures performed equally well in differentiating Aβ-positive from Aβ-negative subjects, with AUCs of 0.979-0.991 to detect abnormal visual reads, AUCs of 0.961-0.966 to detect abnormal CSF Aβ42/40 and AUCs of 0.820-0.823 to detect abnormal Aβ-histopathology. Both measures also showed a similar distribution across <i>post-mortem </i>based Aβ-phases (based on anti-Aβ 4G8 antibodies). By comparison to models using visual-read alone, the addition of the Aβ-index resulted in a significant increase in AUC and a decrease in Akaike information criterion to detect abnormal Aβ-histopathology.</p> <p><b>Conclusions</b><b>:</b> The proposed Aβ-index showed a tight association to SUVR and carries an advantage over the latter in that it does not require the definition of regions of interest nor the use of MRI. Aβ-index may thus prove simpler to implement in clinical settings and may also facilitate the comparison of findings using different Aβ-PET tracers.</p>
Global acceleration of lake sediment accumulation rates associated with recent human population growth and landuse changes
<p>These datasets include the spatial coordinates and the digitized temporal rates of lake sedimentation expressed as Sediment Accumulation Rates (SAR; mm/year) and Mass Accumulation Rate (MAR; g/cm<sup>2</sup>/year) presented in Baud et al. (2021).</p> <p>Baud, A., Jenny, JP., Francus, P. and Gregory-Eaves, I. Global acceleration of lake sediment accumulation rates associated with recent human population growth and land-use changes. <em>J Paleolimnol</em> (2021). https://doi.org/10.1007/s10933-021-00217-6 </p>
Seasonal mixed layer depth shapes phytoplankton physiology, viral production, and accumulation in the North Atlantic
<p>QC'd data for the publication "Seasonal mixed layer depth shapes phytoplankton physiology, viral production, and accumulation in the North Atlantic".</p> <p> </p> <p>naamesqc10.7.2021 - Includes phytoplankton ROS, lipids, DOC, TEP, viruses, bacteria, phytoplankton, MLD, and buoyancy frequency.</p> <p>naamesvolume1 and naamesvolume2 = raw flow cytometry events of unstained samples, used to calculate phytoplankton biovolume. Ref is the same as Ref in naamesphysiologyvirusrawdata9.21.2021.</p>
Figure 1 from: Doorenweerd C, van Haren M, Schermer M, Pieterse S, van Nieukerken E (2014) A Linnaeus NGTM interactive key to the Lithocolletinae of North-West Europe aimed at accelerating the accumulation of reliable biodiversity data (Lepidoptera, Gracillariidae). ZooKeys 422: 87-101. https://doi.org/10.3897/zookeys.422.7446
Figure 1 - Screenshot of the user interface with different sections indicated. 1 Search by name 2 search by character 3 main window with resulting selection, a more information, links to respective species page on fauna europaea b distinctive characters, becomes visible with a selection of 8 or less c displays species with a similar appearance.
Carbon burial in soils of the Great Marsh, DE: Evaluating accumulation rates and organic matter composition
<p>This data was collected to address the research questions listed in Rachel Owrutsky's master's thesis (2022) titled <em>Carbon burial in soils of the Great Marsh, DE: evaluating accumulation rates and organic matter composition. </em></p>
Supplementary material 2 from: Egawa C, Koyama A (2023) Temporal trends in the accumulation of alien vascular plant species through intentional and unintentional introductions in Japan. NeoBiota 83: 179-196. https://doi.org/10.3897/neobiota.83.101416
Definitions of subcategories used for escape from confinement
Supplementary material 4 from: Egawa C, Koyama A (2023) Temporal trends in the accumulation of alien vascular plant species through intentional and unintentional introductions in Japan. NeoBiota 83: 179-196. https://doi.org/10.3897/neobiota.83.101416
Temporal trends in first record rates from 1845 to 2000 by subcategory of introduction pathway
Supplementary material 1 from: Egawa C, Koyama A (2023) Temporal trends in the accumulation of alien vascular plant species through intentional and unintentional introductions in Japan. NeoBiota 83: 179-196. https://doi.org/10.3897/neobiota.83.101416
Association between the first record rate and import value
Supplementary material 3 from: Egawa C, Koyama A (2023) Temporal trends in the accumulation of alien vascular plant species through intentional and unintentional introductions in Japan. NeoBiota 83: 179-196. https://doi.org/10.3897/neobiota.83.101416
Generalised additive model (GAM) results
Fig. 3. Key NOESY correlations observed for compounds 1 and 2 in Isoavenaciol and 7-hydroxy-isoavenaciol: Zn-chelating metallophores produced by root-endophytic Pezicula ericae in a Zn-accumulating plant, Aucuba japonica
Fig. 3. Key NOESY correlations observed for compounds 1 and 2.
Fig. 5 in Isoavenaciol and 7-hydroxy-isoavenaciol: Zn-chelating metallophores produced by root-endophytic Pezicula ericae in a Zn-accumulating plant, Aucuba japonica
Fig. 5. Partial structure of isoavenaciol hydrolysate in CD3OD.
Fig. 2. Key HMBC correlations observed for compound 1 in Isoavenaciol and 7-hydroxy-isoavenaciol: Zn-chelating metallophores produced by root-endophytic Pezicula ericae in a Zn-accumulating plant, Aucuba japonica
Fig. 2. Key HMBC correlations observed for compound 1.
Fig. 5 in Transcriptome analysis of Paris polyphylla var. yunnanensis illuminates the biosynthesis and accumulation of steroidal saponins in rhizomes and leaves
Fig. 5. KEGG enrichments of DEGs.
Fig. 3 in The toc132toc120 heterozygote mutant of Arabidopsis thaliana accumulates decreased levels of the major chloroplast lipids
Fig. 3. (continued).
Fig. 3 in The toc132toc120 heterozygote mutant of Arabidopsis thaliana accumulates decreased levels of the major chloroplast lipids
Fig. 3. (continued).
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.