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.
1,221
datasets available to search
ShareScore release 0.9.0
Dataset results
1,221 results for “Aggregators”
Figures 28-30 from: Johansson N, Achterberg C van (2016) Revision of the Palaearctic Gasteruption assectator aggregate, with special reference to Sweden (Hymenoptera, Gasteruptiidae). ZooKeys 615: 73-94. https://doi.org/10.3897/zookeys.615.8857
Figures 28-30 - Ovipositor sheath of Gasteruption assectator (Linnaeus (28), Gasteruption boreale (29) and Gasteruption nigritarse (Thomson) (30). Scale bar 1 mm.
Figures 1-3 from: Johansson N, Achterberg C van (2016) Revision of the Palaearctic Gasteruption assectator aggregate, with special reference to Sweden (Hymenoptera, Gasteruptiidae). ZooKeys 615: 73-94. https://doi.org/10.3897/zookeys.615.8857
Figures 1-3 - Lectotype of Gasteruption assectator (Linnaeus). 1 habitus dorsal 2 habitus lateral 3 labels.
Figures 24-25 from: Johansson N, Achterberg C van (2016) Revision of the Palaearctic Gasteruption assectator aggregate, with special reference to Sweden (Hymenoptera, Gasteruptiidae). ZooKeys 615: 73-94. https://doi.org/10.3897/zookeys.615.8857
Figures 24-25 - Hypostomal bridge of Gasteruption nigritarse (Thomson) (24) and Gasteruption assectator (Linnaeus) (25).
Figures 4-7 from: Johansson N, Achterberg C van (2016) Revision of the Palaearctic Gasteruption assectator aggregate, with special reference to Sweden (Hymenoptera, Gasteruptiidae). ZooKeys 615: 73-94. https://doi.org/10.3897/zookeys.615.8857
Figures 4-7 - Lectotype of Gasteruption brevicauda (Kieffer). 4 habitus lateral 5 metasoma lateral 6 labels 7 mesoscutum and head dorsal.
Figures 26-27 from: Johansson N, Achterberg C van (2016) Revision of the Palaearctic Gasteruption assectator aggregate, with special reference to Sweden (Hymenoptera, Gasteruptiidae). ZooKeys 615: 73-94. https://doi.org/10.3897/zookeys.615.8857
Figures 26-27 - Mesoscutum of Gasteruption assectator (Linnaeus) (26) and Gasteruption boreale (Thomson) (27).
Aggregate variables for International Journal of General Systems
<p>Hourly data (tab-delimited text) for the years 1991-2007 of three aggregate variables describing activity in the magnetosphere-ionosphere system and three aggregate solar-wind variables that drive the activity.</p>
Dataset from: Aggregation of colloidal particles in the presence of hydrophobic anions: Importance of attractive non-DLVO forces
<p>The dataset for the publication "Aggregation of colloidal particles in the presence of hydrophobic anions: Importance of attractive non-DLVO forces". DOI: 10.1021/acs.langmuir.8b03191</p> <p>Files containing data have .dat extension and are in text format. When needed, additional information is reported in xx_Explanation.txt files.</p>
Fault detection in Robotic Swarm Aggregation using a Kalman Filter - Appendix
<p>The appendix for my bachelor thesis: Fault detection in Robotic Swarm Aggregation using a<br> Kalman Filter. In the images of the aggregation experiments the different lines refer to the number of clustering robots.</p>
Plant spatial aggregation modulates the interplay between plant competition and pollinator attraction with contrasting outcomes of plant fitness
<p>Ecosystem functions such as seed production are the result of a complex interplay between competitive plant-plant interactions and mutualistic pollinator-plant interactions. In this interplay, spatial plant aggregation could work in two different directions: it could increase hetero- and conspecific competition, thus reducing seed production; but it could also attract pollinators increasing plant fitness. To shed light on how plant spatial arrangement modulates this balance, we conducted a field study in a Mediterranean annual grassland with three focal plant species with different phenology, <em>Chamaemelum fuscatum </em>(early phenology), <em>Leontodon maroccanus </em>(middle phenology) and <em>Pulicaria paludosa </em>(late phenology), and a diverse guild of pollinators (flies, bees, beetles, and butterflies). All three species showed spatial aggregation of conspecific individuals. Additionally, we found that the two mechanisms were working simultaneously: crowded neighborhoods reduced individual seed production via plant-plant competition, but they also made individual plants more attractive for some pollinator guilds, increasing visitation rates and plant fitness. The balance between these two forces varied depending on the focal species and the spatial scale considered. Therefore, our results indicate that mutualistic interactions do not always effectively compensate for competitive interactions in situations of spatial aggregation of flowering plants, at least in our study system. We highlight the importance of explicitly considering the spatial structure at different spatial scales of multitrophic interactions to better understand individual plant fitness and community dynamics.</p>
Pieces in a global puzzle: Population genetics at two whale shark aggregations in the western Indian Ocean
<p>The whale shark Rhincodon typus is found throughout the world's tropical and warm-temperate ocean basins. Despite their broad physical distribution, research on the species has been concentrated at a few aggregation sites. Comparing DNA sequences from sharks at different sites can provide a demographically neutral understanding of the whale shark's global ecology. Here, we created genetic profiles for 84 whale sharks from the Saudi Arabian Red Sea and 72 individuals from the coast of Tanzania using a combination of microsatellite and mitochondrial sequences. These two sites, separated by approximately 4500 km (shortest over-water distance), exhibit markedly different population demographics and behavioral ecologies. Eleven microsatellite DNA markers revealed that the two aggregation sites have similar levels of allelic richness and appear to be derived from the same source population. We sequenced the mitochondrial control region to produce multiple global haplotype networks (based on different alignment methodologies) that were broadly similar to each other in terms of population structure but suggested different demographic histories. Data from both microsatellite and mitochondrial markers demonstrated the stability of genetic diversity within the Saudi Arabian aggregation site throughout the sampling period. These results contrast previously measured declines in diversity at Ningaloo Reef, Western Australia. Mapping the geographic distribution of whale shark lineages provides insight into the species' connectivity and can be used to direct management efforts at both local and global scales. Similarly, understanding historical fluctuations in whale shark abundance provides a baseline by which to assess current trends. Continued development of new sequencing methods and the incorporation of genomic data could lead to considerable advances in the scientific understanding of whale shark population ecology and corresponding improvements to conservation policy.</p>
Data for: Aggregation in an heterospecific population of blowfly larvae: social behaviour is impacted by species-specific thermal requirements and settlement order
<p><span>Larvae of several blow fly species grow on carcasses and actively aggregate together. They face harsh developmental conditions resulting in a strong pressure to reduce development time: this is achieved either through thermoregulation or aggregation. We investigate how these two developmental strategies are modulated within heterospecific groups. In the first experiment, larvae of two species with different thermal requirements were deposited simultaneously on a thermal gradient. This resulted in the formation of two monospecific groups, each located at the species-specific thermal preferendum. However, when <em>Calliphora</em> <em>vomitoria</em> (Linnaeus) larvae were placed first, the later coming <em>Lucilia</em> <em>sericata</em> (Meigen) larvae attracted the whole group to its own thermal preferendum. In the reverse experiment, a half of the replicates resulted in single dense heterospecific groups observed at temperatures ranging from <em>C. vicina</em> to <em>L. sericata</em> preferendum. The other half of the replicates resulted in loose groups spread out on the thermal gradient. These results highlight the emergence of collective decisions ranging from thermal optimization to heterospecific aggregation at suboptimal temperatures. They demonstrate that species settlement order strongly affects self-organization processes and mixed-species group formation. We conclude that thermal optimization and heterospecific niche construction are two developmental strategies of carrion fly larvae.</span></p>
FIGURE 1 in Hieracium lomniczkianum (Asteraceae), a new species in the H. wiesbaurianum aggregate from the Sudetes in Poland
FIGURE 1. Holotype of Hieracium lomniczkianum (KRAM).
FIGURE 2 in Hieracium lomniczkianum (Asteraceae), a new species in the H. wiesbaurianum aggregate from the Sudetes in Poland
FIGURE 2. Holotype of Hieracium lomniczkianum: involucres and rosette leaves.
Cell behaviors underlying Myxococcus xanthus aggregate dispersal
<p>The soil bacterium Myxococcus <em>xanthus</em> is a model organism with a set of diverse behaviors. These behaviors include the starvation-induced multicellular development program, in which cells move collectively to assemble multicellular aggregates. After initial aggregates have formed, some will disperse, with smaller aggregates having a higher chance of dispersal. Initial aggregation is driven by two changes in cell behavior: cells slow down inside of aggregates and bias their motion by reversing direction less frequently when moving towards aggregates. </p> <p>However, the cell behaviors that drive dispersal are unknown. Here we use fluorescent microscopy to quantify changes in cell behavior after initial aggregates have formed. We observe that after initial aggregate formation, cells adjust the bias in reversal timings by initiating reversals more rapidly when approaching unstable aggregates. Using agent-based modeling, we then show dispersal is predominantly generated by this change in bias, which is strong enough to overcome slowdown inside aggregates. Notably, the change in reversal bias is correlated with the nearest aggregate’s size, connecting cellular activity to previously observed correlations between aggregate size and fate. To determine if this connection is consistent across strains, we analyze a second M. <em>xanthus</em> strain with reduced levels of dispersal. We find that far fewer cells near smaller aggregates modified their bias. This implies that aggregate dispersal is under genetic control, providing a foundation for further investigations into the role it plays in the life cycle of M. <em>xanthus</em>.</p>
Interspecific variation in non-breeding aggregation: a multi-colony tracking study of two sympatric seabirds
<p>Migration is a widespread strategy for escaping unfavourable conditions during winter, but the extent to which populations that segregate during the breeding season aggregate during the non-breeding season is poorly understood. Low non-breeding season aggregation may be associated with higher likelihood of overlap with threats, but with fewer populations affected, whereas high aggregation may result in a lower probability of exposure to threats, but higher overall severity. We investigated non-breeding distributions and extent of population aggregation in 2 sympatrically breeding auks. We deployed geolocation-immersion loggers on common guillemots <em>Uria aalge</em> and razorbills <em>Alca torda</em> at 11 colonies around the northern UK and tracked their movements across 2 non-breeding seasons (2017-18 and 2018-19). Using 290 guillemot and 135 razorbill tracks, we mapped population distributions of each species and compared population aggregation during key periods of the non-breeding season (post-breeding moult and mid-winter), observing clear interspecific differences. Razorbills were largely distributed in the North Sea, whereas guillemot distributions were spread throughout Scottish coastal waters and the North, Norwegian and Barents Seas. We found high levels of aggregation in razorbills and a strong tendency for colony-specific distributions in guillemots. Therefore, razorbills are predicted to have a lower likelihood of exposure to marine threats, but more severe potential impact due to the larger number of colonies affected. This interspecific difference may result in divergent population trajectories, despite the species sharing protection at their breeding sites. We highlight the importance of taking whole-year distributions into account in spatial planning to adequately protect migratory species.</p>
Comparative Study Between Biodentine and Mineral Trioxide Aggregate in Direct Pulp Capping
ClinicalTrials.gov study NCT02803528. IPD Sharing: NO. Countries: 1. Publications: 5.
Effect of Fluvastatin on Top of Clopidogrel and Aspirin in Patients After DES Implantation on Platelet Aggregation
ClinicalTrials.gov study NCT00465322. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Apexification Treatment With MTA(Mineral Trioxide Aggregate) and Ca(OH)2
ClinicalTrials.gov study NCT03855501. IPD Sharing: NO. Countries: 0. Publications: 3.
Effect of Sarpogrelate on Platelet Aggregation in Patients With Cerebral Infarction: Dose-responsive Clinical Pharmacology Study
ClinicalTrials.gov study NCT00147303. IPD Sharing: Not stated. Countries: 0. Publications: 1.
Clinical and Radiographic Assessments of Potassium Nitrate in Polycarboxylate Versus Mineral Trioxide Aggregate as Pulpotomy Biomaterials in Immature Mandibular First Permanent Molars
ClinicalTrials.gov study NCT03166748. IPD Sharing: NO. Countries: 0. Publications: 33.
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.