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535 results for “DUST”
STARDUST C/E/L DUST FLUX MONITOR INSTRUMENT-2-EDR-V1.0
Data collected by the Dust Flux Monitor Instrument (DFMI) of the Stardust satellite, taken during the early cruise phase of the mission. These data were determined by peer review to be of no scientific use.
Dust in Nearby Galaxies with Spitzer (DUSTiNGS) Good Source Catalog
DUSTiNGS consists of a sample of 50 dwarf galaxies within 1.5 Mpc, which have been mapped with IRAC channels 1 and 2 (3.6 and 4.5 microns). The sample consists of 37 dwarf spheroidal, 8 dwarf irregular, and 5 transition-type galaxies.The DUSTiNGS data release includes images and source catalogs based on uniform Spitzer 3.6 and 4.5 micron observations. The catalogs are available in "full" and "good" versions, where quality cuts based on photometric accuracy and source morphology have been applied to the latter. See Boyer et al. (2015) for details.
Exposure to elevated relative humidity in laboratory chambers alters fungal gene expression in dust from the International Space Station (ISS)
Microbes are present in all occupied indoor environments, including the International Space Station (ISS). An unexpected ventilation system failure may lead to microbial and fungal growth that is associated with material degradation or negative health effects. There is a need for improved understanding of fungal function when exposed to moisture in indoor spaces. A de novo metatranscriptomic study was performed using dust collected from within the ISS. After returning to Earth, dust was incubated in laboratory chambers to simulate relative humidity conditions of 50%, 85%, or 100% equilibrium relative humidity (ERH) for 1-week. Changes in fungal function (gene expression) were associated with moisture exposure. Genes associated with secondary metabolism and fungal growth were significantly upregulated (p ≤ 0.001, log2FC ≥ 2) at elevated RH conditions (85% or 100% ERH). Elevated moisture conditions showed an increased expression of mycotoxin and fungal allergen genes such as Asp f 4 and Alt a 7 (log2FC ≥ 5). These results demonstrate that understanding microbial gene expression in response to elevated moisture will help improve microbial monitoring standards for confined spacecraft environments and help protect astronaut health and spacecraft integrity.
GALILEO DUST DETECTION SYSTEM V4.0
This data set contains the data from the Galileo dust detector system (GDDS) from start of mission through the end of mission. Included are the dust impact data, noise data, laboratory calibration data, and location and orientation of the spacecraft and instrument.
VEGA1 DUST PARTICLE COUNTER MASS ANALYSER DATA V1.0
Encounter Data for Vega-1 included two files: DSFAST17 and Dvega101. These files were submitted by the Univ of Chicago group with hard copy versions of the operating manual and a preprint of results. The following explanation of the contents of the two files is below.
ULYSSES DUST DETECTION SYSTEM V3.1
This data set contains the data from the Ulysses dust detector system (UDDS) from start of mission through the end of mission, 1990-2007. (As the dust detector was turned off after Nov. 30, 2007, this is the last date for which UDDS data is recorded.) Included are the dust impact data, noise data, laboratory calibration data, and location and orientation of the spacecraft and instrument.
Dust Around Nearby Stars (DUNES) Catalog
DUst around NEarby Stars (DUNES, Eiroa et al. 2013) is a Herschel open time deep key program to perform a deep and systematic survey for faint, cold debris disks. A sample of 133 nearby (d<25 pc) main sequence stars between 0.2 and 2 solar masses were observed with PACS and SPIRE.The DUNES catalog provides Herschel photometry, links to the Herschel images and SED plot, as well as quantities from ancillary data and other missions.
VEGA1 DUST PARTICLE IMPACT DETECTOR DATA V1.0
The SP-2 experiment on Vega spacecraft was intended for studying the spatial and mass distributions of dust particles in the cometary coma over the mass range 1.e-16 to 1.e-6 g. Covering such a broad mass range was made possible by using sensors of two types, namely, impact plasma and acoustic.
GIOTTO PARTICLE IMPACT ANALYZER DUST MASS SPECTRA V1.0
The PIA data was acquired in four modes of data compression, termed mode 0 (the least compressed), and modes 1, 2, and 3, each with increasing degrees of compression. With each spectrum are a PIA assigned sequence number and event numbers, a unique ID-number, instrument settings, and the relative approach time. The PIA time is a 16-bit counter that starts with zero after switch-on. As the Spacecraft Time Signal (STS) is used to reset the internal PIA time counter, the TIM highest possible value is 48960 counts. STS-pulses are given after the transimssion of 256 formats. This results for format F1/F2 and high bitrate (46080 bps) in 5802.67 s. (= 256 formats * 64 frames * 2040 bytes * 8 bit/byte/46080 bps) The time resolution is DTIM = 1/ (138240 HZ /2**14 ) = 0.1185 s. Each STS defines the time for an event with TIM = 0. Therefore, SCET = GRT(STS) + (TIM * DTIM) - propogation delay (8:00.1 sec). where SCET = Spacecraft Event Time, GRT = Ground Reception Time.
ROSETTA-ORBITER DUST MIDAS 3 PRL SAMPLES V3.0
The Micro-Imaging Dust Analysis System (MIDAS) is an instrument on the ROSETTA Orbiter that will provide 3D images and statistical parameters of pristine cometary particles, collected in the vicinity of comet 67P/Churyumov-Gerasimenko. This data set includes all data from the PRELANDING mission phase. This release supersedes version 2.0.
LADEE LUNAR DUST EXPERIMENT
This archive bundle includes data taken by the Lunar Dust Experiment (LDEX) instrument aboard the Lunar Atmosphere and Dust Environment Explorer (LADEE) spacecraft. These data are generated by dust impacts on the LDEX detector. Both reduced and calibrated data are included in this bundle.
STARDUST DUST COLLECTOR GEOMETRY V1.0
Data set describing the geometry and orientations of the spacecraft and the collector plate during the two interstellar dust collection phases and the Wild 2 encounter.
VEGA2 PUMA DUST MASS SPECTROMETER MODAL DATA V1.0
The data from MPI for this dataset were received as text files each containing spectra of a single instrument mode (there were several files for most modes). These spectra were reformatted into binary tables, and all spectra from each mode were combined into a single file. The original order of the spectra has been preserved. Spacecraft time, relative to switch-on of the instrument is specified as 1 clock tick = 0.11852 seconds. The exact equation is:
GIOTTO DUST IMPACT DETECTOR SYSTEM DATA V1.0
Dust Impact Detection System (DIDSY) consists of six independent subsystems with the primary aim of registering the impacts of all particulates of significant mass incident on the probe during the post-perihelion encounter with Comet Halley in 1986. Mounted on Giotto's front dust shield, the detectors will determine the mass spectrum of the dust, with a limiting sensitivity of some 10^^-17^^ g, increasing to the largest grain masses encountered along Giotto's trajectory through the cometary environment with an ultimate spatial resolution of some 70 km. An additional detector is located on the rear shield to monitor those dust particles (m > ~ 5 X 10^^-7^^ g) that are able to penetrate the front dust shield. An ambient plasma monitor is also incorporated into DIDSY to measure the inJpact plasma generated by both dust and gas impacts on the spacecraft. The system is controlled and its data processed by a microprocessor-based system that allows the wide range of anticipated impact rates (varying from a few per minute, to ~ 10^6 s^^-1^^ at closest approach) to be handled. The instrument weighs 2.26 kg and consumes 1.9 W of power during normal operation.
ULYSSES DUST DETECTION SYSTEM V3.0
This data set contains the data from the Ulysses dust detector system (UDDS) from start of mission through the end of mission, 1990-2007. (As the dust detector was turned off after Nov. 30, 2007, this is the last date for which UDDS data is recorded.) Included are the dust impact data, noise data, laboratory calibration data, and location and orientation of the spacecraft and instrument.
GALILEO DUST DETECTION SYSTEM V3.0
Detector responses and derived quantities from the Galileo dust detector as well as spacecraft geometry information for reliable impacts from launch through 2001. See Gruen et al. (Plan. Sp. Sci. 43, 953-969, 1995) and Krueger et al. (Plan. Sp. Sci. 47, 85-106, 1999; Plan. Sp. Sci. 49, 1285-1301, 2001) for more information.
Identification of transcriptome changes associated with toxic effects of methanolic coal dust extract on fish early life stage by RNASeq
GEO Series GSE128900. Danio rerio. 9 samples. Type: Expression profiling by high throughput sequencing.
Mouse lung tissue RNA-Seq from C57Bl6 wild type and ALOX15 KO mice with and without house dust mite (HDM) exposure.
GEO Series GSE226609. Mus musculus. 20 samples. Type: Expression profiling by high throughput sequencing.
Multi-omics profiling reveals microenvironmental remodeling as a key driver of house dust mite-induced lung cancer progression
GEO Series GSE308855. Mus musculus. 12 samples. Type: Expression profiling by high throughput sequencing.
IL-22 inhibits allergic airway inflammation in house dust mite-induced asthma models
GEO Series GSE100858. Mus musculus. 4 samples. Type: Expression profiling by high throughput sequencing.
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