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29,897 results for “activism”
Seasonality of floral resources in relation to bee activity in agroecosystems
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Cellular dataset for: The anterior Hox gene ceh-13 and elt-1/GATA activate the posterior Hox genes nob-1 and php-3 to specify posterior lineages in the C. elegans embryo
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Drosophila survival after infection and Buletin antibacterial activity data
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Excitatory neurotransmission activates compartmentalized calcium transients in Müller glia without affecting lateral process motility
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Data from: The influence of human activity on predator-prey spatiotemporal overlap
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Cryptic behaviour and activity cycles of a small mammal keystone species revealed through accelerometry: a case study of Merriam’s kangaroo rats
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Data from: Neutrophils actively swell to potentiate rapid migration
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Norepinephrine links astrocytic activity to regulation of cortical state
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Bats increased foraging activity at experimental prey patches near hibernacula
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Alignment between CARE Principles and Data Repository Activities
This dataset is designed to accompany the paper submitted to Data Science Journal: O'Brien et al, "Earth Science Data Repositories: Implementing the CARE Principles". This dataset holds a list of activites typically carried out by repositories that are related to the CARE Principles for Indigenous Data Governance. Activities are divided into four categories to reflect broad skill sets usually found in repository personnel: Situational Awareness, Outreach, Repository Protocols, Technology. Each activity was mapped to one or more of the CARE sub-principles, with booleans in individual columns.
Survey 200 long term study of multiple sites in central Arizona-Phoenix: human activity related measurements
The Ecological Survey of Central Arizona (ESCA) is an extensive field survey and integrated inventory designed to capture key ecological indicators of the CAP LTER study area consisting of the urbanized, suburbanized, and agricultural areas of metropolitan Phoenix, and the surrounding Sonoran desert. The survey is conducted every five years at approximately 200 sample plots (30m x 30m) that were located randomly using a tessellation-stratified dual-density sampling design. Study plots cover habitats throughout the CAP LTER study area ranging from native Sonoran desert sites to residential yards to an airport tarmac. Measurements include an inventory of all plants (identified to the lowest possible taxonomic unit, typically species), plant biovolume, soil coring for physicochemical properties, arthropod sweep-net sampling, photo documentation, and a visual survey of site and area characteristics. The objectives of the survey are to (1) characterize patches in terms of key biotic, physical, and chemical variables, and (2) examine relationships among land use, general plant diversity, native plant diversity, plant biovolume, soil nutrient status, and social-economic indices along an indirect urban gradient. Survey 200 was the original name of the project, and it was renamed to ESCA following the survey conducted in 2015. The data set here includes a subset of information from the Survey200/ESCA focusing exclusively on buildings and indicators of human activity in the survey plots. Investigators interested in more recent survey data, or other variables measured as part of ESCA should search the data catalog for 'ecological survey of central arizona' or 'survey 200'.
O horizon extracellular enzyme activity: Nitrogen limitation in decomposition
Modern agriculture and fossil fuel combustion contribute to the transfer of N from largely inert pools (atmospheric N2, fossil fuel reserves) to biologically reactive forms that can be transported downwind from agricultural or industrial areas to ecosystems that historically may have experienced low levels of N inputs. Understanding how increased N inputs alter the cycling of another biologically important element, C, has been impeded by uncertainties about N effects on the process of decomposition. To date, ecologists remain unable to predict when, where, and in what forms N addition stimulates rates of decomposition. For example, recent work showed that in eight low-N sites in Central Minnesota, litter N was positively correlated with decomposition, suggesting N limitation of decomposition, yet addition of inorganic N fertilizer increased decomposition in only two of eight sites. These paradoxical results call into question the assumption that the often-observed correlation between substrate N concentration and decomposition arises because N limits decomposition. Research is addressing three interrelated questions:* (1) Why do litter N and externally supplied N have contrasting effects on decomposition in low-N ecosystems? (2) Do different forms of N (organic vs. inorganic; substrate vs. externally supplied) affect the activity, function and composition of the decomposer community differently, and, if so, what are the consequences for decomposition? (3) What are temporal dynamics of the activity, function, and composition of the decomposer community and do these dynamics depend upon the amount and forms of N supplied to the decomposer community?* These questions will be addressed using a 4-y decomposition experiment manipulating the quantity and form of N available to decomposers via use of substrates ranging in N concentrations and of inorganic (ammonium nitrate) and organic (amino acids) N fertilizers. The response of microbial biomass, stoichiometry, efficiency
Streptomyces pathogen suppressive activity in plant communities varying in diversity:Plant host and plant diversity effects on rhizosphere microbial community composition, diversity, structure, and function.
Effects of plant host and plant community diversity on soil rhizosphere microbial community composition, diversity, structure, and function were explored in long-term experimental plots. Soil samples were collected from the rhizosphere of one of 4 target plants species (Andropogon gerardii, Schizachyrium scoparium, Lespedeza capitata, or Lupinus perennis) growing in 1, 4, 8, 16, or 32-species plots. Pathogen-suppressive activities of soil streptomycetes were determined for every sample. In addition, soil metagenomic analyses were performed targeting bacterial or streptomycete communities. Soil edaphic characteristics were determined for every sample. Analyses consider both the effects of plant host and plant community diversity on microbial community structure and function, and the relationships of diverse taxa with plant host, plant community diversity, and soil edaphic characteristics.
Soil microbial functions and enzyme activity:BAC: Biodiversity and Climate
Climate changes forecast for our region by GCM???s and shifts in biodiversity and composition each have the potential to alter ecosystem functioning; their interactive effects are unknown. The "BAC" experiment is designed to determine the direct and interactive effects of plant species numbers, plant community composition, temperature, and precipitation on 11 productivity, C and N dynamics, stability, and plant, microbe, and insect species abundances in CDR grassland ecosystems.
Moose activity and nitrogen cycling along an elevation gradient on the snow removal plots at the Hubbard Brook Experimental Forest.
The response of moose activity and three tree species to soil freezing were measured through experimental manipulation (shoveling) of snow to induce soil freezing. In addition, mechanical clipping of plants to simulate moose browsing and the addition of 15N labeled moose feces were included to determine the biogeochemical and plant response. N dynamics were evaluated using soil tension lysimeters, soil sampling, tracing movement of moose fecal N into soil, plant and microbial pools and leaching loss. Both total N and 15N were measured in all pools and fluxes. Fluxes include N mineralization and nitrification rates. Rate of decomposition and fate was also followed for moose feces. This data set includes measurents from 2003 to 2006. These data were gathered as part of the Hubbard Brook Ecosystem Study (HBES). The HBES is a collaborative effort at the Hubbard Brook Experimental Forest, which is operated and maintained by the USDA Forest Service, Northern Research Station.
PIE LTER high marsh sediment chemistry and activity measurements, Nelson Island Creek marsh, Rowley, MA
Salt marsh sediment CHN, bulk density and gamma emission data from sediment cores are provided for calculation of high marsh sediment accumulation and accretion rates in sediments collected during the Fall of 2014 in the Nelson Island Creek marsh, off Stackyard Rd., Rowley, MA.
Temporal and spatial distribution of microbial biomass, growth and activity in intertidal marshes, open water, and South Paramore Island in the Virginia Coast Reserve 1988-1990
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Separating Functions of the Phage-Encoded Quorum-Sensing-Activated Antirepressor Qtip
<p>Raw gels and microscopy images used in a study on the interaction between Qtip and its partner phage repressor protein.</p> <p> </p> <p> </p>
Relationship between active and passive environmental factors and the body mass index of residents in Geneva - Dataset
<p>Dataset used for the long paper in the "Exploratory Data Analysis and Geovisualization" course at EPFL. The paper is titled "Relationship between active and passive environmental factors and the body mass index of residents in Geneva"</p>
Data for the evaluatino of the influence of active transportation on body mass index
<p>The dataset is centered on the canton of Geneva Switzerland and is divided into four different folders, available in a shapefile format;</p> <p>Cycle lane : This folder contains the cycle lane available in the State of Geneva.</p> <p>Parking : This folder contains the public and private parking of the State of Geneva.</p> <p>Public transport : This folder contains the public transport servicing quality data in the State of Geneva.</p> <p>Road : This folder contains the road used by the car in the State of Geneva.</p>
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.