AndreaBozzo/ceres-open-data-index huggingface dataset:
Multi-objective optimization based privacy preserving distributed data mining in Peer-to-Peer networks

This paper proposes a scalable, local privacy preserving algorithm for distributed Peer-to-Peer (P2P) data aggregation useful for many advanced data mining/analysis tasks such as average/sum computation, decision tree induction, feature selection, and more.
Unlike most multi-party privacy-preserving data mining algorithms, this approach works in an asynchronous manner through local interactions and it is highly scalable. It particularly deals with the distributed computation of the sum of a set of numbers stored at different peers in a P2P network in the context of a P2P web mining application. The proposed optimization based privacy-preserving technique for computing the sum allows different peers to specify different privacy requirements without having to adhere to a global set of parameters for the chosen privacy model. Since distributed sum computation is a frequently used primitive,
the proposed approach is likely to have significant impact on many data mining tasks such as multi-party privacy-preserving clustering, frequent itemset mining, and statistical aggregate computation.

Tags: ames, dashlink, nasa
Organization: National Aeronautics and Space Administration
SWOT Level 2 KaRIn Low Rate Sea Surface Height Data Product - WindWave, Version 2.0

The SWOT Level 2 KaRIn Low Rate Sea Surface Height Windwave Data Product from the Surface Water Ocean Topography (SWOT) mission provides global sea surface height and significant wave height observations derived from low rate (LR) measurements from the Ka-band Radar Interferometer (KaRIn). SWOT launched on December 16, 2022 from Vandenberg Air Force Base in California into a 1-day repeat orbit for the "calibration" or "fast-sampling" phase of the mission, which completed in early July 2023. After the calibration phase, SWOT entered a 21-day repeat orbit in August 2023 to start the "science" phase of the mission, which is expected to continue through 2025. <br>
The L2 sea surface height data product is distributed in one netCDF-4 file per pass (half-orbit) covering the full KaRIn swath width, which spans 10-60km on each side of the nadir track. Sea surface height, sea surface height anomaly, wind speed, significant waveheight, and related parameters are provided on a geographically fixed, swath-aligned 2x2 km2 grid (Basic, Expert, Windwave). The sea surface height data are also provided on a finer 250x250 m2 "native" grid with minimal smoothing applied (Unsmoothed). <br>
This collection is a sub-collection of its parent: https://podaac.jpl.nasa.gov/dataset/SWOT_L2_LR_SSH_2.0  It provides the "Windwave" file from each L2 SSH product, which includes significant wave height (SWH), normalized radar cross section (NRCS or backscatter cross section or sigma0), wind speed derived from sigma0 and SWH, model information on wind and waves, and quality flags.

Tags: earth-science, ocean-waves, oceans, sea-surface-topography
Organization: National Aeronautics and Space Administration
OMPS-N21 LP NRT Aerosol Extinction Vertical Profile swath multi-wavelength orbital 3slit

The OMPS-N21 Level 2 LP Aerosol Extinction Vertical Profile swath level 2 3slit (AER) product contains the retrieved aerosol extinction coefficients measured by the Ozone Mapping and Profiling Suite (OMPS) Limb-Profiler (LP) sensor on the NOAA-N21 satellite. The AER product measures stratospheric aerosol abundance and evolution at 6 wavelengths (510, 600, 675, 745, 869 and 997 nm) to complement the OMPS LP measurements of stratospheric and mesospheric profile ozone. This product replaces the previous single wavelength 675 nm (AER675) product.  Each granule contains data from the daylight portion of each orbit. Spatial coverage is global (-90 to 90 degrees latitude), and there are about 14.5 orbits per day each measuring three limb profiles spaced approximately 250 km in the cross-track direction. The profiles are measured from the ground up to about 80 km with a vertical resolution of the retrieved profiles of approximately 1.8 km. The files are written using the Hierarchical Data Format Version 5 or HDF5. The /ProfileFields/RetrievedExtCoeff dataset is produced via a neural network trained on LP-L2-AER data for NRT processing.

Tags: aerosols, atmosphere, earth-science
Organization: National Aeronautics and Space Administration
NASA 3D Models: OSTM/Jason-2

OSTM/Jason-2's primary payload includes five instruments similar to those aboard Jason-1, along with three experimental instruments. Its main instrument is an altimeter that precisely measures the distance from the satellite to the ocean surface. Its radiometer measures the amount of water vapor in the atmosphere, which can distort the altimeter measurements. Three location systems combine to measure the satellite's precise position in orbit.

Tags: 3d-model, eyes-on-the-solar-system, ostm-jason-2, satellite, spacecraft
Organization: National Aeronautics and Space Administration
SMAPVEX15 PALS Brightness Temperature Data V001

This data set contains brightness temperatures obtained by the Passive Active L-band System (PALS) aircraft instrument. The data were collected as part of SMAPVEX15, the Soil Moisture Active Passive Validation Experiment 2015.

Tags: earth-science, land-surface, microwave, spectral-engineering, surface-thermal-properties
Organization: National Aeronautics and Space Administration
Legates Surface and Ship Observations of Precipitation Climatology 0.5 x 0.5 degree V1 (RAIN_LEGATES) at GES DISC

The Legates Surface and Shipboard Rain Gauge Observations data set consists of a global climatology of monthly mean precipitation values. A global climatology of mean monthly precipitation was developed using traditional land-based gauge measurements as well as extrapolations of oceanic precipitation from coastal and island observations. Data were obtained from a variety of source archives. These data were screened for coding errors, merged, and redundant stations were removed. The resulting data base contains 24,635 independent terrestrial station records and 2223 oceanic gridpoint estimates.
      
      Precipitation gauge catches, however, are known to underestimate actual precipitation. Errors in the gauge catch result from wind-field deformation above the orifice of the gauge, wetting losses, and evaporation from the gauge and amount globally to nearly 8, 2, and 1 percent of the catch, respectively. A procedure was developed to estimate these errors and was used to obtain better estimates of global precipitation. Spatial variations in gauge type, air temperature, wind speed, and natural vegetation have been interpolated to the nodes of a 0.5 degrees of latitude by 0.5 degrees of longitude lattice using a spherically-based interpolation algorithm.
      
      The data set is used to validate general circulation model simulations of the present-day precipitation climate, for ground-based comparison with satellite-derived precipitation estimates, and as a basis for global water balance studies.

Tags: atmosphere, earth-science, precipitation
Organization: National Aeronautics and Space Administration
LAT Monitored Source List Light Curves

The LAT team monitors flux values for a number of bright sources and transient sources that have shown flares during the mission. (See up-to-date weekly reports on flaring sources at the Fermi-LAT Flare Advocate Blog.) As sources cross the monitoring flux threshold of 1x10-6 cm-2s-1, they are added to the monitored source list. (The initial flux threshold was 2x10-6 cm-2s-1, but this value was lowered in June 2009.) In addition to the light curves below, the flux values in several bands are available via Browse. This list will continue to grow as the mission progresses.

Tags: acd, balloon, bursts, cgro, compton, egret, energy, fermi, gamma, gamma-ray, glast, glast-ssc, gro, gssc, high-energy
Organization: National Aeronautics and Space Administration
QuikSCAT ESDR Level 2 Modeled Ocean Surface Auxiliary Fields Version 1.0

This dataset contains the first provisional release of the MEaSUREs-funded Earth Science Data Record (ESDR) of ancillary data corresponding to the QuikSCAT Level 2 (L2) data products, interpolated in space and time to the scatterometer observations. These ancillary files include: i) ocean surface wind fields from ERA-5 short-term forecasts (removed from the analyses times to reduce impacts from assimilated scatterometer retrievals at the beginning of the forecast); ii) collocated in space and time estimations of precipitation from the GPM IMERG product; iii) estimation of the surface currents from the GlobeCurrent project. These auxiliary fields are included to complement the scatterometer observation fields and to help in the evaluation process. The primary purpose of this release is for provisional evaluation to be provided by the NASA International Ocean Vector Winds Science Team (IOVWST). As such, this release is not intended for science-quality research, and is subject to future revision based on feedback provided by the IOVWST. The modeled ocean surface auxiliary fields are provided on a non-uniform grid within the native L2 QuikSCAT sampled locations at 12.5 km pixel resolution. Each file corresponds to a specific orbital revolution (rev) number, which begins at the southernmost point of the ascending orbit.

Tags: altitude, atmosphere, atmospheric-temperature, atmospheric-water-vapor, earth-science, ocean-circulation, ocean-temperature, ocean-winds, oceans
Organization: National Aeronautics and Space Administration
Multi-omic investigations of mouse liver subjected to simulated spaceflight freezing and storage protocols

This study compares standard laboratory protocols for tissue freezing and storage with a simulation of the delayed processing of liver specimens and long-term storage protocols used during the Rodent Research-1 (RR-1) payload. Liver samples from twelve-week old female C57BL/6J mice (snap frozen vs. 25 min. slow-frozen and stored for 3 days vs. 1 year) received from the RR-1 project were processed for extraction of RNA DNA and protein. RNA-seq whole genome bisulfite sequencing and mass spectrometry proteomics were performed. These multi-omics datasets will help distinguish the effects of freezing and storage time that could confound the interpretation of the Rodent Research-1 datasets.

Tags: animal-and-tissue-sampling, data-transformation, extraction, freezing-profile, genelab-rnaseq-data-processing-protocol, labeling, library-construction, mass-spectrometry, nucleic-acid-extraction, nucleic-acid-sequencing, protein-extraction, sample-collection, sample-preservation-method, sample-storage-time, sequencing-library-construction, tmt-isobaric-labeling
Organization: National Aeronautics and Space Administration
Global 1-km Sea Surface Temperature (G1SST)

JPL OurOcean Portal: A daily, global Sea Surface Temperature (SST) data set is produced at 1-km (also known as ultra-high resolution) by the JPL ROMS (Regional Ocean Modeling System) group.

Tags: chemistry, earth-science, google-earth, in-situ, numerical-weather-forecasting, oceanography, oceans, sst, tes, troposphere, tropospheric-emission-spectrometer
Organization: National Aeronautics and Space Administration
Gene responses in mouse brain to long-term exposure to microgravity

The spaceflight experiment was carried out using male C57BL/10J mice (8 weeks old at launch). Wild type mice (n=3) were launched by Space Shuttle Discovery and housed on the International Space Station (ISS) for 91 days. They returned to the Earth by Space Shuttle Atlantis. But only one mouse returned to the Earth alive. Whole brain was sampled from the mouse killed by inhalation of carbon dioxide at the Life Sciences Support Facility of Kennedy Space Center within 3-4 hours after landing. After the spaceflight experiment the on-ground experiment was also carried out at the Advanced Biotechnology Center in Genova Italy. A mouse with the same species sex and age was housed in mice drawer system (MDS) which was utilized for the spaceflight (SF) mice for 3 months as the ground control (GC). Another mouse was housed in normal vivarium cage as the laboratory control (LC). Amount of food and water supplementation and environmental conditions were simulated as the flight group. After 3 months brain was sampled from one mouse in group GC and LC respectively. Comprehensive analyses of gene expression were performed in the right brain. Total of 4,000 genes were analyzed. The expression levels of 60 genes significantly changed in response to SF compared with LC and/or GC. The 15 and 16 genes were up- (> 2 folds) and down-regulated (< 0.5 folds) respectively following SF vs. GC. The levels of 58 genes were significantly altered by housing in MDS in space and/or on the ground. Forty seven and 11 genes were significantly up- and down-regulated vs. LC. Twenty seven out of these genes responded to caging in MDS both in space and on the ground. Further 31 genes were influenced by housing in MDS on the Earth. Responses of the characteristics of brain to long-term gravitational unloading were investigated in mice.

Tags: bioassay_data_transformation, cage, feature_extraction, gravity, grow, hybridization, image_aquisition, labeling, nucleic_acid_extraction, p-gse32077-1, p-gse32077-2, p-gse32077-3, p-gse32077-4, p-gse32077-5, p-gse32077-6, p-gse32077-7, p-gse32077-8, spaceflight, specified_biomaterial_action
Organization: National Aeronautics and Space Administration
Effect of electromagnetic fields on the chondrogenic differentiation under microgravity conditions

A combination therapy of electromagnetic fields (EMF) and simulated microgravity (SMG) has not been examined in regenerative medicine of cartilage. In the present study a bioreactor system using extremely low-frequency EMF and SMG was applied during the chondrogenic differentiation of human mesenchymal stem cells (hMSCs). It was hypothesized that a beneficial effect of EMF regarding chondrogenesis (COL2A) could be combined with an avoiding effect of SMG regarding hypertrophy (COLXA1) of cartilage. Pellet cultures of hMSCs formed cartilaginous tissue under the addition of growth factors (FGF; TGF-beta3). Pure SMG reduced COLXA1 expression but also COL2A expression of hMSCs. Pure EMF showed no gene expression changes of hMSCs during chondrogenic differentiation. Combining EMF/SMG resulted in a re-increase of COL2A but did not reach control levels. The COL2A to COLXA1 ratio of combined EMF/SMG was not significantly different from control levels. The combination therapy of EMF/SMG did not significantly improve the chondrogenic potential of hMSCs. chondrogenic differentiation electromagnetic stimulation-control 1 timepoint with/without stimulation

Tags: array-scanning-protocol, electromagnetic-fields, growth-protocol, hybridization-protocol, labelling-protocol, normalization-data-transformation-protocol, nucleic-acid-extraction-protocol, p-gse57298-1, p-gse57298-2, p-gse57298-3, p-gse57298-4, p-gse57298-5, p-gse57298-6, p-gse57298-7, sample-treatment-protocol, weightlessness-simulation
Organization: National Aeronautics and Space Administration
Dataset for Identification of Anatoxin‑a and Related Metabolites in Exposed Mice Samples with a High-Resolution Mass Spectrometry Discovery Workflow

This is the data presented in https://pubs.acs.org/doi/10.1021/acs.chemrestox.5c00236, Identification of Anatoxin-a and Related Metabolites in Exposed Mice Samples with a High-Resolution Mass Spectrometry Discovery Workflow

Tags: anatoxin, exposure, harmful-cyanobacterial-blooms, urine
Organization: U.S. Environmental Protection Agency
Planetary Data System (PDS)

The Planetary Data System (PDS) is an archive of data products from NASA planetary missions, which is sponsored by NASA's Science Mission Directorate. We actively manage the archive to maximize its usefulness, and it has become a basic resource for scientists around the world.

Tags: astronomical-observation, circulation, images, laboratory, mapping, pds, planetary-data-system, planetary-missions, planetary-science, planetary-science-research, proposals, space-science
Organization: National Aeronautics and Space Administration
Effects of a Closed Space Environment on Gene Expression in Hair Follicles of Astronauts in the International Space Station

In recent times long-term stay has become a common occurrence in the International Space Station (ISS). However adaptation to the space environment can sometimes pose physiological problems to the astronauts after their return. Therefore it is important to develop healthcare technologies for astronauts. In this study hair an easy-to-obtain sample was identified as the candidate. In order to investigate the genetic changes in human hair during space flight the hair follicles of 10 astronauts were analyzed by DNA microarray and real time q-PCR analyses. Space environment induced gene expression of hair follicles of astronaut was measured 6 differnent times included 2 in flight on orbit. Ten independent experiments were performed on differing astronauts. and the sampling day was differed for each astronaut because of their schedules.

Tags: data-collection, exposure-duration, labeling, normalization-data-transformation, nucleic-acid-hybridization, rna-extraction, sex, spaceflight, treatment-protocol
Organization: National Aeronautics and Space Administration
A E- GEOD-50881 Gene Chip Assay --- Candida albicans response to spaceflight (NASA STS-115)

https://c3.nasa.gov/genelab/accession/GLDS-20/

This study presents the first global transcriptional profiling and phenotypic characterization of the major human opportunistic fungal pathogen, Candida albicans, grown in spaceflight conditions. Microarray analysis revealed that C. albicans subjected to short-term spaceflight culture differentially regulated 454 genes compared to synchronous ground controls, which represented 8.4% of the analyzed ORFs. Spaceflight-cultured C. albicans induced genes involved in cell aggregation (similar to flocculation), which was validated by microscopic and flow cytometry analysis. We also observed enhanced random budding of spaceflight-cultured cells as opposed to more normal bipolar budding patterns for ground samples, in accordance with the gene expression data. Furthermore, genes involved in antifungal agent and stress resistance were differentially regulated in spaceflight, including induction of ABC transporters and members of the major facilitator family, downregulation of ergosterol-encoding genes, and upregulation of genes involved in oxidative stress resistance. Finally, downregulation of genes involved in the actin cytoskeleton was observed. Interestingly, the transcriptional regulator Cap1 and over 30% of the Cap1 regulon was differentially expressed in spaceflight-cultured C. albicans. A potential role for Cap1 in the spaceflight response of C. albicans is suggested, as this regulator is involved in random budding, cell aggregation, actin cytoskeleton, and oxidative stress resistance; all related to observed spaceflight-associated changes of C. albicans. While culture of C. albicans in microgravity potentiates a global change in gene expression that could induce a virulence-related phenotype, no increased virulence in a murine intraperitoneal (i.p.) infection model was observed. This study represents an important basis for the assessment of the risk that commensal flora could play during spaceflight missions. Furthermore, since the low fluid-shear environment of microgravity is relevant to physical forces encountered by pathogens during the infection process, insights gained from this study could identify novel infectious disease mechanisms, with downstream benefits for the general public. Cells were grown for 24 hours on the space shuttle or as ground-based controls, preserved in RNALater, and stored at -80C. Four samples of each flight- and ground-based controls were harvested for microarray analysis. GAP is Group Activation Pack and each GAP contains 8 FPAs. The numbers represent the # assigned to the particular GAP and the number assigned to the specific FPA (1-8) within the indicated GAP. The same hardware is used for the flight samples and the ground samples.

Tags: candida-albicans, fungal, pathogen
Organization: National Aeronautics and Space Administration
Global Pesticide Grids (PEST-CHEMGRIDS)

The Global Pesticide Grids (PEST-CHEMGRIDS) includes a comprehensive database of the 20 most-used pesticide active ingredients on 6 dominant crops and 4 aggregated crop classes at 5 arc-minute resolution (about 10 km at the equator), estimated in year 2015 and projected to 2020 and 2025. To estimate the global application rates of specific active ingredients, spatial statistical methods were used to re-analyze the U.S. Geological Survey Pesticide National Synthesis Project (USGS/PNSP) and the Food and Agriculture Organization Corporate Statistical Database (FAOSTAT) pesticide databases, along with other public inventories including global gridded data of soil physical properties, hydro-climatic variables, agricultural quantities, and socioeconomic indices. The data set also includes 200 data quality maps corresponding to each active ingredient on each crop, as well as maps of the 10 dominant crops and 4 aggregated crop classes.

Tags: agricultural-chemicals, agriculture, earth-science
Organization: National Aeronautics and Space Administration
GASKELL PHOBOS SHAPE MODEL V1.0

The shape model of Phobos derived by Robert Gaskell from Viking Orbiter 1 and Phobos 2 images. The model is provided in the implicitly connected quadrilateral (ICQ) format. This version of the model was prepared on March 11, 2006. Vertex-facet versions of the models are also provided.

Tags: phobos, phobos-2, viking
Organization: National Aeronautics and Space Administration
PHOENIX MARS SURFACE STEREO IMAGER 
                                     3 RADIOMETRIC OPS V1.0

The Surface Stereo Imager (SSI)  experiment on the Mars Phoenix Lander consists of one instrument  component plus command electronics. This SSI Imaging Operations RDR  data set contains radiometric data from the Surface Stereo Imager (SSI).

Tags: mars, phoenix
Organization: National Aeronautics and Space Administration
THIR/Nimbus-4 Images of Daytime and Nighttime Brightness Temperature at 6.7 microns on 70 mm Film V001 (THIRN4IMCH67) at GES DISC

THIRN4IMCH67 is the Nimbus-4 Temperature-Humidity Infrared Radiometer (THIR) data product consisting of daily montages of brightness temperatures measured at 6.7 microns on 70 mm photofacsimile film strips. Daytime and nighttime orbital swaths are displayed in strips, each corresponding to a distance approximately from pole to pole and a width from horizon to horizon. The ground resolution of 22.6 km at nadir decreases as the horizontal distance from the subsatellite track increases. Each film strip is gridded with geographic coordinates and is identified by orbit number, time, and an indication of whether it is daytime (D) or nighttime (N). The images are saved as JPEG 2000 digital files. About 1 week of images are archived into a TAR file. Additional information can be found in section 3.4.1 of "The Nimbus IV User's Guide".

The THIR instrument was designed to detect emitted thermal radiation in both the 10.5- to 12.5-micrometer region (IR window) and the 6.5- to 7.0-micrometer region (water vapor). The window channel measured cloudtop temperatures day and night. The other channel operated primarily at night to map the water vapor distribution in the upper troposphere and stratosphere. The THIR experiment made measurements from April 18, 1970 until April 8, 1971.

This product was previously available from the NSSDC with the identifier ESAD-00194 (old ID 70-025A-02B).

Tags: earth-science, infrared-wavelengths, spectral-engineering
Organization: National Aeronautics and Space Administration