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1,026 results for “Linked data”
Data and original code for: Polarization and reflectance are linked to climate, size and mechanistic constraints in a group of scarab beetles
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Data from: Linking continuous and discrete models of cell birth and migration
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Data from: Cypin regulates K63-linked polyubiquitination to shape synaptic content
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Data from: Linking divergence in phenotypic selection on floral traits to divergence in local pollinator assemblages in a pollination-generalized plant
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Data from: Predictive links between petal color and pigment quantities in natural Penstemon hybrids
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Data from: Quantifying and linking mechanism scenarios to invasive species impact
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Data from: Sociality of a threatened ‘solitary’ marsupial before and after population reinforcement: associations and links to breeding success
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Data from: Linking microenvironment modification to species interactions and demography in an alpine plant community
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temporalNEON: Repository containing raw and cleaned-up organismal data from the National Ecological Observatory Network (NEON) useful for evaluating the links between change in biodiversity and ecosystem stability
Organismal data include the following taxonomic groups: small mammals, fish, ground beetles, and aquatic macroinvertebrates. Data were retrieved from the National Ecological Observatory Network (NEON) database in November 2020. We submit both raw data retrieved from NEON as .rds files, R code used to process these data, as well as processed data as .csv files.
Linking Precipitation and C3 - C4 Plant Production to Resource Dynamics in Higher Trophic Level Consumers: Lizard Data (2005-2006)
In many ecosystems, seasonal shifts in temperature and precipitation induce pulses of primary productivity that vary in phenology, abundance and nutritional quality. Â Variation in these resource pulses could strongly influence community composition and ecosystem function, because these pervasive bottom-up forces play a primary role in determining the biomass, life cycles and interactions of organisms across trophic levels. Â The focus of this research is to understand how consumers across trophic levels alter resource use and assimilation over seasonal and inter-annual timescales in response to climatically driven changes in pulses of primary productivity. We measured the carbon isotope ratios (d13C) of plant, arthropod, and lizard tissues in the northern Chihuahuan Desert to quantify the relative importance of primary production from plants using C3 and C4 photosynthesis for consumers. Â Summer monsoonal rains on the Sevilleta LTER in New Mexico support a pulse of C4 plant production that have tissue d13C values distinct from C3 plants. Â During a year when precipitation patterns were relatively normal, d13C measurements showed that consumers used and assimilated significantly more C4 derived carbon over the course of a summer; tracking the seasonal increase in abundance of C4 plants. Â In the following spring, after a failure in winter precipitation and the associated failure of spring C3 plant growth, consumers showed elevated assimilation of C4 derived carbon relative to a normal rainfall regime. These findings provide insight into how climate, pulsed resources and temporal trophic dynamics may interact to shape semi-arid grasslands such as the Chihuahuan Desert in the present and future.
Linking Precipitation and C3 - C4 Plant Production to Resource Dynamics in Higher Trophic Level Consumers: Insect Data (2005-2006)
In many ecosystems, seasonal shifts in temperature and precipitation induce pulses of primary productivity that vary in phenology, abundance and nutritional quality. Â Variation in these resource pulses could strongly influence community composition and ecosystem function, because these pervasive bottom-up forces play a primary role in determining the biomass, life cycles and interactions of organisms across trophic levels. Â The focus of this research is to understand how consumers across trophic levels alter resource use and assimilation over seasonal and inter-annual timescales in response to climatically driven changes in pulses of primary productivity. We measured the carbon isotope ratios (d13C) of plant, arthropod, and lizard tissues in the northern Chihuahuan Desert to quantify the relative importance of primary production from plants using C3 and C4 photosynthesis for consumers. Â Summer monsoonal rains on the Sevilleta LTER in New Mexico support a pulse of C4 plant production that have tissue d13C values distinct from C3 plants. Â During a year when precipitation patterns were relatively normal, d13C measurements showed that consumers used and assimilated significantly more C4 derived carbon over the course of a summer; tracking the seasonal increase in abundance of C4 plants. Â In the following spring, after a failure in winter precipitation and the associated failure of spring C3 plant growth, consumers showed elevated assimilation of C4 derived carbon relative to a normal rainfall regime. These findings provide insight into how climate, pulsed resources and temporal trophic dynamics may interact to shape semi-arid grasslands such as the Chihuahuan Desert in the present and future.
Survey data linked to the article "The role of wildlife in driving ecotourism and visitor satisfaction on the Osa Peninsula of Costa Rica: The Lapa Rios case".
<p>Questionnaire responses obtained from 46 visitors of Lapa Rios Ecolodge in the Osa Peninsula, Costa Rica, from Aug 2017 to Aug 2018; also included question key.</p>
Semantic links between selected CSV datasets harvested by the European Data Portal and the DBpedia knowledge graph
<p>These dataset contains the results of the interlinking process between selected csv datasets harvested by the European DAta Portal and the DBpedia knowledge graph. </p> <p>We aim at answering the following questions:<br> What are the more popular column types? This will provide hindsight about what the datasets hold and how they can be joined. It will also provide hindsight on what specific linking schemes could be applied in future elements.<br> What datasets have columns of the same type? This will suggest datasets that may be similar or related.<br> What entities appear in most datasets (co-referent entities)? This will suggest entities for which more data is published.<br> What datasets share a particular entity? This will suggest datasets that may be joined, or are related through that particular entity</p> <p>Results are provided as augmented tables, that contain the columns of the original csv, plus a metadata file in JSON-LD format. The metadata files can be loaded in an RDF-store and queried.</p> <p>Refer to the accompanying report of activities for more details on the methodolog and how to query the dataset.</p> <p><br> </p>
Data from: Divergent and linked selection shape patterns of genomic differentiation between European and North American Atlantic salmon (Salmo salar)
<p>As populations diverge many processes can shape genomic patterns of differentiation. Regions of high differentiation can arise due to divergent selection acting on selected loci, genetic hitchhiking of nearby loci, or through repeated selection against deleterious alleles (linked background selection); this divergence may then be further elevated in regions of reduced recombination. Atlantic salmon (Salmo salar) from Europe and North America diverged >600,000 years ago and despite some evidence of secondary contact, the majority of genetic data indicate substantial divergence between lineages. This deep divergence with potential gene flow provides an opportunity to investigate the role of different mechanisms that shape the genomic landscape during early speciation. Here, using 184,295 SNPs and 80 populations, we investigate the genomic landscape of differentiation across the Atlantic Ocean with a focus on highly differentiated regions and processes shaping them. We found evidence of high (mean FST=0.26) and heterogeneous genomic differentiation between continents. Genomic regions associated with high trans-Atlantic differentiation ranged in size from single loci (SNPs) within important genes to large regions (1-3Mbp) on four chromosomes (Ssa06, Ssa13, Ssa16, and Ssa19). These regions showed signatures consistent with selection, including high linkage disequilibrium despite no local reduction in recombination. Genes and functional enrichment of processes associated with differentiated regions may highlight continental differences in ocean navigation and parasite resistance. Our results provide insight into potential mechanisms underlying differences between continents, and evidence of near fixed and potentially adaptive trans-Atlantic differences concurrent with a background of high genome-wide differentiation supports subspecies designation in Atlantic salmon.</p>
Bharathi - Linked Data Vocabulary for the Indian Context
<p>Bharathi is a collection of linked data vocabularies for the Indian context linking the metadata of terms and inter relationships across different entities within Government functions. In its first release, Bharathi contains information regarding Government Organisations at the Union Government and State Government level, the various Administrative Regions and its respective classifications, Sectors, Sub Sectors and common topics within the hierarchy of the Government functions</p>
Data from: Geographic patterns in colonial reproductive strategy in Myrmecina nipponica: links between biogeography and a key polymorphism in ants
<p>The ability to express different phenotypes can help define species distributions by allowing access to, and exploitation of, new environments. Social insects employ two markedly different reproductive strategies with contrasting cost/benefit characteristics: independent colony foundation (ICF), which is associated with high dispersal range and high risk, and dependent colony foundation (DCF), characterized by low risk but low dispersal. The ant <i>Myrmecina nipponica</i> employs both of these strategies, with the frequency of each apparently varying between populations. We combine molecular data with data on reproductive strategy from different populations of this species throughout Japan to explore how this polymorphism is linked to environmental factors and if this relationship can help explain the current and historical biogeography of this species. Reproductive strategy exhibited a strong geographic pattern, with ICF predominant in southern populations and DCF more common in northern and southern highland populations. Molecular analyses clearly divided populations into broad geographic regions, with the southern-lowland populations basal to (southern-highland (+ northern)) populations. Intra-population polymorphism in colony founding strategy was widespread, and polymorphism was reconstructed as the likely ancestral state. The frequency of different strategies was linked with climate, with DCF more common in colder areas. A recent inferred origin to the northern lineage suggests that colonization of northern Japan was a rapid event coincident with warming at the end of the last glacial maxima, likely facilitated by the cold-adaptive advantages of DCF. We discuss how such polymorphisms could help explain the biogeography of this and other social insects.</p>
Data from: Cu-Al mixed oxide-catalysed multicomponent synthesis of gluco- and allofuranose-linked 1,2,3-triazole derivatives
<p><span>A series of carbohydrate linked-1,2,3-triazole derivatives were synthetized in good yields from glucofuranose and allofuranose diacetonides using as key step a three-component 1,3-dipolar azide-alkyne cycloaddition catalyzed by a Cu-Al mixed oxide. In this multicomponent reaction, Cu-Al mixed oxide/sodium ascorbate system serves as highly reactive, recyclable and efficient heterogeneous catalyst for regioselective synthesis of 1,4-disubstituted 1,2,3-triazoles. The reported protocol has significant advantages over classical CuI/DIPEA or CuSO<sub>4</sub>/sodium ascorbate conditions in terms of efficiency and reduced synthetic complexity. In addition, the selective deprotection of synthesized di-<i>O</i>-isopropylidene derivatives was also carried out leading to the corresponding mono-<i>O</i>-isopropylidene products in moderate yields. Some of the synthesized triazole glycoconjugates were tested for their <em>in vitro</em> antimicrobial activity using the disk diffusion method against Gram-positive bacteria (<i>Staphylococcus aureus</i> and <i>Bacillus subtilis</i>), Gram-negative bacteria (<i>Escherichia coli</i> and <i>Pseudomonas aeruginosa</i>), as well as fungus (<i>Aspergillus niger</i>) and yeast (<i>Candida utilis</i>). The results revealed that these compounds exhibit moderate to good antimicrobial activity mainly against Gram-negative bacteria. </span></p>
Linking Twitter & Survey Data [online workshop]
<p>Twitter has become an important data source for many social scientists. While using data from Twitter can help to avoid or alleviate some of the issues related to self-report data, such as social desirability or problems with recollection, Twitter data have their own sets of limitations, including the lack of information about individuals or missing outcome variables of interest. Linking data from surveys and Twitter is a way to combine the unique strengths of the two data types and overcome some of their respective limitations. The online workshop led by Luke Sloan (Cardiff University), Johannes Breuer (GESIS), and Libby Bishop (GESIS) covered the key steps in the research process of linking Twitter and survey data. Specifically, the workshop addressed the phases of study planning, (Twitter) data collection, data processing, and archiving and sharing. The workshop drew on recent experiences from different studies that the instructors were involved in and provided guidance on how to address the ethical and operational issues associated with linking Twitter and survey data in the different phases of the research process.</p> <p>The video is also available for viewing on <a href="https://youtu.be/IG1jJ3WP2h8">YouTube</a>.</p>
Cross-linked Mass Spectrometry (MALDI) data of GR C3 NTD and TSG101cc
<p>The zip file contains three folders from three separate datasets. The proteins were cross-linked with DST and then run on SDS-PAGE to separate unlinked protein. Bands were cut from the gels and then proteolyses overnight before conducting MS. Most of the datasets were collected using trypsin to produce protein fragments or in one case trypsin + chymotrypsin. Each folder contains a large number of control samples including: blank portions of the gel, uncross-linked protein samples, cross-linked GR without TSG101, cross-linked TSG101 without GR (four different bands because of much self-cross-linking). The files were hand curated for analysis.</p>
Data from: The presubiculum links incipient amyloid and tau pathology to memory function in older persons
Objective: To identify the hippocampal subregions linking initial amyloid and tau pathology to memory performance in clinically normal older individuals, reflecting preclinical Alzheimer's disease (AD). Methods: A total of 127 individuals from the Harvard Aging Brain Study (Mean age: 76.22 years ± 6.42, 68 females (53.5%)) with a Clinical Dementia Rating score of 0, a flortaucipir tau-PET scan, a Pittsburgh Compound B amyloid-PET scan, a structural MRI scan and cognitive testing were included. From these images, we calculated neocortical, hippocampal and entorhinal amyloid pathology, entorhinal and hippocampal tau pathology and the volumes of six hippocampal subregions and total hippocampal volume. Memory was assessed with the selective reminding test. Mediation and moderation analyses modeled associations between regional markers and memory. Analyses included covariates for age, sex and education. Results: Neocortical amyloid, entorhinal tau and presubiculum volume univariately associated with memory performance. The relationship between neocortical amyloid and memory was mediated by entorhinal tau and presubiculum volume, which was modified by hippocampal amyloid burden. With other biomarkers held constant, presubiculum volume was the only marker predicting memory performance in the total sample and in individuals with elevated hippocampal amyloid burden. Conclusions: The presubiculum captures unique AD-related biological variation that is not reflected in total hippocampal volume. Presubiculum volume may be a promising marker of imminent memory problems, and can contribute to understanding the interaction between incipient AD-related pathologies and memory performance. The modulation by hippocampal amyloid suggests that amyloid is a necessary process – but not sufficient – to drive neurodegeneration in memory-related regions.
ScienceDex guides
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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.