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223 results for “ammonia”
Elevated CO2 and Nitrogen Supply Boost N Use Efficiency and Wheat Growth, and Differentiate Soil Microbial Communities Related to Ammonia-oxidization
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Electrocatalytic Nitrogen Reduction in Continuous-Flow Cell via Water Oxidation at Ambient Conditions: Promising for Ammonia or Diazene?
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Myocardial Blood Flow by PET and N-13 Ammonia During Regadenoson vs Adenosine Stress
ClinicalTrials.gov study NCT01370265. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Estimation of methane emissions from the U.S. ammonia fertilizer industry using a mobile sensing approach (supplemental data)
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Data from: Ammonia volatilization from putting greens foliarly-fertilized by conventional or stabilized urea
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Data from: Evaluation and mechanism of ammonia nitrogen removal using sediments from a malodorous river
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Cross-track Infrared Sounder (CrIS) Level 2 Earth System Science Profiling Algorithm Ammonia Retrieval Algorithm (ESSPA-NH3) V1 (SNDRSNIL2ESPNH3)
The objective of this limited edition data collection is to examine the ammonia products generated by the ESSPA (Earth System Science Profiling Algorithm) algorithm from the Cross-track Infrared Sounder (CrIS) instruments. The CrIS instrument used for this product is deployed on board the Suomi National Polar-orbiting Partnership (SNPP) platform and uses the Normal Spectral Resolution (NSR) data. The CrIS instrument is a Fourier transform spectrometer with a total of 1305 NSR infrared sounding channels covering the longwave (655-1095 cm-1), midwave (1210-1750 cm-1), and shortwave (2155-2550 cm-1) spectral regions.The NH3 L2 ammonia algorithm is based on an AER (Atmospheric and Environmental Research, Inc.) program initially developed to process TES (Tropospheric Emissions Spectrometer) trace gas products. This version runs within the ESSPA software framework: it uses the AER OSS forward model and an optimal estimation approach with a Levenberg-Marquardt algorithm. Temperature and water profiles are obtained from the CLIMCAPS Field of Regard (FOR) products, as are initial guesses for surface temperature and emissivity. The algorithm consists of a two-step sequential retrieval the first step retrieves surface temperature and emissivity and the second step an ammonia profile. The algorithm produces ammonia retrievals on every field of view (FOV) in each FOR.A level 2 granule has been set as 6 minutes of data, 30 footprints crosstrack by 45 lines along track. There are 240 granules per day, with an orbit repeat cycle of approximately 16 day.
Atmospheric Composition Ammonia Volume Mixing Ratio L3 (AIRSAC3MNH3 V3) from AIRS/AMSU on NASA Aqua at GES DISC
The mass concentration ammonia in the atmosphere, consists of products generated for the study of atmospheric ammonia. Atmospheric ammonia is an important component of the global nitrogen cycle. In the troposphere, ammonia reacts rapidly with acids such as sulfuric and nitric to form fine particulate matter. These ammonium containing aerosols affect Earth's radiative balance, both directly by scattering incoming radiation and indirectly as cloud condensation nuclei. Major sources of atmospheric ammonia involve agricultural activities including animal husbandry, especially concentrated animal feeding operations and fertilizer use. Major sinks of atmospheric ammonia involve dry deposition and wet removal by precipitation, as well as conversion to particulate ammonium by reaction with acids. Measurements of ambient NH3 are sparse, but satellites provide a means to monitor atmospheric composition globally. Using the AIRS/AMSU satellite this algorithm provides monthly measurements of derived atmospheric NH3 for September 2002 through August 2016.
TES/Aura L2 Ammonia Lite Nadir V007
TL2NH3LN_7 is the Tropospheric Emission Spectrometer (TES)/Aura Level 2 Ammonia Lite Nadir Version 7 data product. TES was an instrument aboard NASA's Aura satellite and was launched from California on July 15, 2004. Data collection for TES is complete. TES Level 2 data contain retrieved species (or temperature) profiles at the observation targets and the estimated errors. The geolocation, quality, and other data (e.g., surface characteristics for nadir observations) were also provided. L2 modeled spectra were evaluated using radiative transfer modeling algorithms. The process, referred to as retrieval, compared observed spectra to the modeled spectra and iteratively updated the atmospheric parameters. L2 standard product files included information for one molecular species (or temperature) for an entire global survey or special observation run. A global survey consisted of a maximum of 16 consecutive orbits. Nadir observations, which point directly to the surface of the Earth are different from limb observations, which are pointed at various off-nadir angles into the atmosphere. Nadir and limb observations were added to separate L2 files, and a single ancillary file was composed of data that are common to both nadir and limb files. A Nadir sequence within the TES Global Survey was a fixed number of observations within an orbit for a Global Survey. Prior to April 24, 2005, it consisted of two low resolution scans over the same ground locations. After April 24, 2005, Global Survey data consisted of three low resolution scans. The Nadir standard product consists of four files, where each file is composed of the Global Survey Nadir observations from one of four focal planes for a single orbit, i.e. 72 orbit sequences. The Global Survey Nadir observations only used a single set of filter mix. A Global Survey consisted of observations along 16 consecutive orbits at the start of a two day cycle, over which 3,200 retrievals were performed. Each observation was the input for retrievals of species Volume Mixing Ratios (VMRs), temperature profiles, surface temperature, and other data parameters with associated pressure levels, precision, total error, vertical resolution, total column density, and other diagnostic quantities. Each TES Level 2 standard product reported information in a swath format conforming to the HDF-EOS Aura File Format Guidelines. Each Swath object was bounded by the number of observations in a global survey and a predefined set of pressure levels representing slices through the atmosphere. Each standard product could have had a variable number of observations depending upon the Global Survey configuration and whether averaging was employed. Also, missing or bad retrievals were not reported. Further, observations were occasionally scheduled on non-global survey days. In general they were measurements made for validation purposes or with highly focused science objectives. Those non-global survey measurements were referred to as “special observations”The organization of data within the Swath object was based on a superset of the Upper Atmosphere Research Satellite (UARS) pressure levels used to report concentrations of trace atmospheric gases. The reporting grid was the same pressure grid used for modeling. There were 67 reporting levels from 1211.53 hPa, which allowed for very high surface pressure conditions, to 0.1 hPa, about 65 km. In addition, the products reported values directly at the surface when possible or at the observed cloud top level. Thus in the Standard Product files, each observation could potentially contain estimates for the concentration of a particular molecule at 67 different pressure levels within the atmosphere. However, for most retrieved profiles, the highest pressure levels were not observed due to a surface at lower pressure or cloud obscuration. For pressure levels corresponding to altitudes below the cloud top or surface, where measurements were not possible, a fill value was applied.To minimize the duplication of information between the individual species standard products, data fields common to each species (such as spacecraft coordinates, emissivity, and other data fields) was collected into a separate standard product, termed the TES L2 Ancillary Data product (Short name: TL2ANC). Users of this product should also obtain the Ancillary Data product.
Transcription Response by sulfur chemolithoautotroph Thiomicrospira crunogenato dissolved inorganic carbon and ammonia limitation
GEO Series GSE36254. Hydrogenovibrio crunogenus. 6 samples. Type: Expression profiling by array.
Cellular and molecular basis of increased renal ammonia excretion in hyperammonemic conditions
GEO Series GSE106682. Rattus norvegicus. 6 samples. Type: Expression profiling by high throughput sequencing.
Lack of a role of NHE4 in renal ammonia metabolism
GEO Series GSE290102. Mus musculus. 2 samples. Type: Expression profiling by high throughput sequencing.
The Malate Shuttle Detoxifies Ammonia in Exhausted T Cells by Producing 2-Ketoglutarate
GEO Series GSE220876. Mus musculus. 54 samples. Type: Genome binding/occupancy profiling by high throughput sequencing; Expression profiling by high throughput sequencing.
Transcriptome profile analysis of breast muscle tissues from high or low levels of atmospheric ammonia exposed broilers (Gallus gallus)
GEO Series GSE85786. Gallus gallus. 4 samples. Type: Expression profiling by high throughput sequencing.
Expression of lncRNA and mRNA in the cumulus-oocyte complex of rabbits exposed to ammonia
GEO Series GSE282848. Oryctolagus cuniculus. 3 samples. Type: Expression profiling by high throughput sequencing.
Nitrobacter winogradskyi transcriptomic response to ammonia
GEO Series GSE58053. Nitrobacter winogradskyi. 9 samples. Type: Expression profiling by high throughput sequencing.
High Concentrations of Atmospheric Ammonia Induce Alterations of Gene Expression in the Breast Muscle of Broilers (Gallus gallus) Based on RNA-Seq
GEO Series GSE84099. Gallus gallus. 6 samples. Type: Expression profiling by high throughput sequencing.
Community composition of ammonia-oxidizing archaea from surface and anoxic depths of oceanic oxygen minimum zones
GEO Series GSE46851. synthetic construct; marine metagenome; uncultured crenarchaeote. 23 samples. Type: Other.
Microbial metabolite ammonia disrupts CEACAM1-TGF-β signaling to promote colon cancer
GEO Series GSE281613. Homo sapiens. 12 samples. Type: Expression profiling by high throughput sequencing.
Effects of atmospheric ammonia on the production performance, serum biochemical indices, and liver RNA-seq data of laying ducks
GEO Series GSE144924. Anas platyrhynchos. 6 samples. Type: Expression profiling by high throughput sequencing.
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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.