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2,532 results for “at present”
Sediment trap Rhizaria flux from sediment trap samples collected aboard CCE LTER process cruises in the California Current system, 2011 - present.
The collection and enumeration of sinking rhizarian cells on CCE LTER Process cruises has been led by Mike Stukel since 2007. Sinking particles are collected in VERTEX-style particle interceptor traps (PIT) with an 8:1 aspect ratio, 70-mm diameter, and a baffle on top comprised of 13 smaller beveled tubes with a similar 8:1 aspect ratio. Typically 8-12 tubes were deployed with a formalin-brine for a duration of 2-5 days. After recovery, samples were immediately gravity filtered through a 47-mm, 200-μm mesh nitex filter and analyzed under a stereomicroscope. The two dominant taxa of giant rhizaria (Aulosphaeridae and Castanellidae) were then enumerated in each sample. We note, however, that at least two distinct morphotypes of Aulosphaeridae were seen in the sample (but analyzed together because they had similar size and shape) and several smaller rhizarian taxa were also noticed, but not quantified because they are likely not quantitatively captured by our 200-μm filter. Mean and standard deviation of samples from different tubes are reported for each depth. For more details please see Stukel et al. (2013) or Biard et al. (submitted). Biard, T., J. W. Krause, M. R. Stukel and M. D. Ohman (submitted). "The significance of giant Phaeodarians (Rhizaria) to biogenic silica export in the California Current Ecosystem." Global Biogeochem. Cycles. Knauer, G. A., J. H. Martin and K. W. Bruland (1979). "Fluxes of particulate carbon, nitrogen, and phosphorus in the upper water column of the Northeast Pacific." Deep-Sea Research 26(1): 97-108. Stukel, M. R., M. D. Ohman, C. R. Benitez-Nelson and M. R. Landry (2013). "Contributions of mesozooplankton to vertical carbon export in a coastal upwelling system." Marine Ecology Progress Series 491: 47-65
Chl a from discrete bottles samples from the Cal Poly Pier, 2017-present.
Water for chlorophyll a is sampled from three depths (~1, 4 and 9 m) using niskin bottles attached to a CTD rosette.The concentration of chlorophyll a is determined by filtering water though filters of differing pore sizes including a GFF (nominal pore size 0.7 µm) and 3 µm filter. These samples are extracted in 90% acetone and analyzed fluorometrically using a Triology Fluorometer.
At-sea seabird censuses. Data on the species encountered (including marine mammals), their abundance, distribution and behavior. Data collected aboard cruises off the coast of the Western Antarctic Penninsula, 1993 - present.
The objectives of the LTER seabird component during the 92-93 season cruises were similar. These objectives included 1) determining the pelagic abundance and distribution of Adelie Penguins, 2) examining how the physical and biological characteristics of the marine environment influence these parameters and, 3) using these data to identify foraging areas that may be important to Adelie populations being studied as part of land-based work at Palmer Station. Secondary objectives included documenting the abundance and distribution of other seabirds and marine mammals within the LTER study area. The focus of the January cruise was the nearshore foraging habitat,which required sampling at smaller scales. All seabird censuses were thus conducted within approximately 100 kms of Palmer Station while traversing a sampling grid with stations at 10km intervals. The first two days (18-20 January) of this cruise were spent covering the selected grid as rapidly as possible resulting in 45 transects spaced at 45-60 minute intervals. There were no stops at the 10km stations during this Fast Grid phase. Upon completion of the Fast Grid, a force 12 gale suspended data collection for 24 hours. From January 22-25 the grid direction was reversed and the grid repeated. During this Slow Grid phase, 2-M net tows were done at 10km intervals and BOPS and 1-M and 2-M net tows every 20 km. All seabird censusesduring the cruise were done using the procedures outlined in theprevious paragraph.
GPM GROUND VALIDATION ENVIRONMENT CANADA (EC) VISIBILITY SENSOR FD12P AND PRESENT WEATHER DETECTOR GCPEX V1
The GPM Ground Validation Environment Canada (EC) Visibility Sensor FD12P and Present Weather Detector GCPEx dataset contains data collected from January 15 through March 1, 2012 in Huronia, Canada for the GPM Cold-season Precipitation Experiment (GCPEx). This dataset was collected to aid in the achievement of the over arching goal of GCPEx which is to characterize the ability of multi-frequency active and passive microwave sensors to detect and estimate falling snow. The FD12P combines the functions of a forward scatter visibility meter and a present weather detector. It also measures the intensity and the amount of both liquid and solid precipitation.
CALIPSO Lidar Level 2 Polar Stratospheric Clouds presents, composition, and optical properties, V2-00
The Version 2 (V2) CALIPSO Lidar Level 2 Polar Stratospheric Clouds (PSC) data product ensemble describes the spatial distribution, optical properties, and composition of PSC layers observed by the CALIPSO lidar (CALIOP). The product contains profiles of PSC presence, composition, optical properties, and meteorological information on a uniform 5-km horizontal x 180-m vertical grid along CALIPSO orbit tracks. Aura Microwave Limb Sounder (MLS) measurements of the primary PSC condensable vapors HNO3 and H2O and a number of parameters from the Aura MLS V2 Derived Meteorological Products (DMPs) are also included in the V2 PSC data product ensemble.
Loss of SIRPα promotes podocytes presenting antigen to activate specific T cell immune responses in lupus nephritis via activating spleen tyrosine kinase
GEO Series GSE240916. Mus musculus. 2 samples. Type: Expression profiling by array.
Identification of human tumor-unique signaling networks between antigen-presenting cells and T cells using multi-omic single cell analysis
GEO Series GSE163633. Homo sapiens. 131 samples. Type: Expression profiling by high throughput sequencing.
Lung tumor MHCII immunity depends on in situ antigen presentation by fibroblasts. [CAF]
GEO Series GSE164653. Mus musculus. 6 samples. Type: Expression profiling by high throughput sequencing.
Identification of microarray probe signals constantly present in multiple sample types
GEO Series GSE39528. Homo sapiens. 9 samples. Type: Expression profiling by array; Expression profiling by high throughput sequencing.
Gene Expression profile of RORγt-lineage anitigen presenting cells collected from secondary lymphoid tissues in adult mice.
GEO Series GSE273746. Mus musculus. 3 samples. Type: Expression profiling by high throughput sequencing.
Chemotherapy promotes antigen presentation in monocytes of patients with high-grade serous ovarian carcinoma [RRBS]
GEO Series GSE264488. Homo sapiens. 14 samples. Type: Methylation profiling by high throughput sequencing.
Identification of microarray probe signals constantly present in multiple sample types (part 1)
GEO Series GSE39526. Homo sapiens. 6 samples. Type: Expression profiling by array.
Pol II and its associated epigenetic marks are present at pol III-transcribed non-coding RNA genes (II)
GEO Series GSE20071. Homo sapiens. 1 samples. Type: Expression profiling by high throughput sequencing.
Enhanced and selective translation expands the lysosome size and promotes antigen presentation during phagocyte activation
GEO Series GSE136470. Mus musculus. 18 samples. Type: Expression profiling by high throughput sequencing.
Guthrie card methylomics identifies temporally stable epialleles that are present at birth in humans (Bisulfite-Seq)
GEO Series GSE38127. Homo sapiens. 6 samples. Type: Methylation profiling by high throughput sequencing.
Marginal Zone B Cells Trogocytose from Dendritic Cells and Present to T cells MHC II–C3 complexes
GEO Series GSE185597. Mus musculus. 20 samples. Type: Expression profiling by high throughput sequencing.
Mitochondrial respiration contributes to the interferon gamma response in antigen presenting cells
GEO Series GSE162463. Mus musculus. 17 samples. Type: Other.
Ku70/HP1g are presented at the KCl induced acutely activated enhancers [ChIP-seq]
GEO Series GSE185648. Mus musculus. 20 samples. Type: Genome binding/occupancy profiling by high throughput sequencing.
FcγR engagement reprograms neutrophils into antigen cross-presenting cells that elicit acquired anti-tumor immunity
GEO Series GSE173569. Mus musculus. 2 samples. Type: Expression profiling by high throughput sequencing.
Sphingomyelins secreted by mammosphere-derived cells present a novel mechanism for the low mammary cancer incidence observed in certain mammals
GEO Series GSE145536. Homo sapiens. 8 samples. Type: Expression profiling by high throughput sequencing.
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.