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302 results for “microplastic”
The Association Between Microplastics and Macrogenomics and Metabolomics in Gastric Cancer
ClinicalTrials.gov study NCT06856382. IPD Sharing: NO. Countries: 1. Publications: 0.
The Presence of Microplastics and Nanoplastics in the Humans Ileum, Colon, and Rectum and Their Relation With Inflammatory Bowel Disease (IBD)
ClinicalTrials.gov study NCT06525558. IPD Sharing: NO. Countries: 0. Publications: 12.
Microplastic Exposure From Clear Aligner Wear (MPE)
ClinicalTrials.gov study NCT06934603. IPD Sharing: YES. Countries: 1. Publications: 0.
Detection of Microplastics in Patients With Periodontitis
ClinicalTrials.gov study NCT07231198. IPD Sharing: YES. Countries: 0. Publications: 1.
Comparison of Microplastic Levels in Placenta and Cord Blood Samples of Pregnant Women With Fetal Growth Retardation and Healthy Pregnant Women
ClinicalTrials.gov study NCT05070715. IPD Sharing: NO. Countries: 0. Publications: 2.
Data from: Do microplastic particles affect Daphnia magna at the morphological, life history and molecular level?
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Microplastic changes the sinking and resuspension rates of marine mussel biodeposits
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EFFECTS OF MICROPLASTICS AND DROUGHT ON SOIL ECOSYSTEM FUNCTIONS AND MULTIFUNCTIONALITY
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Clearance rates of Mytilus edulis exposed to parasites and microplastic
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Oahu windward beaches microplastics survey
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Microplastics and Microfibers extracted from box core of sediment sampled from Santa Barbara Basin, on Cal-ECHOES cruise, 2010, at 34°17.228’ N, 120°02.135’ W, in approximately 580 m water depth.
A box core was taken in the Santa Barbara Basin on the Cal-ECHOES cruise, in October 2010, at 34°17.228’ N, 120°02.135’ W, in approximately 580 m water depth. X-radiographs were taken of the core to date it to a 1-2 year timescale. The core was cut every 0.5 cm with a thin wire, oven-dried, washed, and wet-sieved over a 104 μm sieve. The >104 μm was first sorted for fish otoliths by William Jones, and then sorted again for this study for microplastics and microfibers with a dissecting microscope. Every particle was measured, photographed, and categorized. A subset of particles were also spectrally identified as plastic or not plastic via FTIR spectroscopy. These are the lengths of the particles measured.
Microplastics and Microfibers extracted from box core of sediment sampled from Santa Barbara Basin, on Cal-ECHOES cruise, 2010, at 34°17.228’ N, 120°02.135’ W, in approximately 580 m water depth.
A box core was taken in the Santa Barbara Basin on the Cal-ECHOES cruise, in October 2010, at 34°17.228’ N, 120°02.135’ W, in approximately 580 m water depth. X-radiographs were taken of the core to date it to a 1-2 year timescale. The core was cut every 0.5 cm with a thin wire, oven-dried, washed, and wet-sieved over a 104 μm sieve. The >104 μm was first sorted for fish otoliths by William Jones, and then sorted again for this study for microplastics and microfibers with a dissecting microscope. Every particle was measured, photographed, and categorized. A subset of particles were also spectrally identified as plastic or not plastic via FTIR spectroscopy.
Nano- and Microplastic Abundance, analyzed with Epifluorescence microscopy, collected aboard two student cruises on two student cruises, SKrillEx I (July 2014) and SKrillEx II (June 2015).
Surface seawater was collected in stainless steel buckets in the nearshore California Current on two student cruises, SKrillEx I (July 2014) and SKrillEx II (June 2015). Surface seawater samples were filtered on to 5-µm pore polycarbonate filters, and frozen at sea for later analysis. Once back on land, the frozen transparent polycarbonate (PC) filters were filtered on an all-glass apparatus and then imaged with modified epifluorescence microscopy techniques for microplastic particles. All microplastic particles were analyzed for plastic shape, length, surface area, and fluorescence.
Nano- and Microplastic Particle Lengths and Surface Areas, analyzed with Epifluorescence microscopy, collected aboard two student cruises, SKrillEx I (July 2014) and SKrillEx II (June 2015).
Surface seawater was collected in stainless steel buckets aboard two student cruises, SKrillEx I (July 2014) and SKrillEx II (June 2015). Surface seawater samples were filtered on to 5-µm pore polycarbonate filters, and frozen at sea for later analysis. Once back on land, the frozen transparent polycarbonate (PC) filters were filtered on an all-glass apparatus and then imaged with modified epifluorescence microscopy techniques for microplastic particles. All microplastic particles were analyzed for plastic shape, length, surface area, and fluorescence.
Salp ingestion rates of microplastics, analyzed with Epifluorescence microscopy, collected aboard multiple cruises (SEAPLEX, SKrillEx I, and SKrillEx II)
Salps were collected on SKrillEx I and II during nightly transects in 202-μm mesh bongo tows, towed to approximately 200 m depth, and samples were preserved in 5% formaldehyde buffered with sodium tetraborate. We also used zooplankton samples collected on the August 2009 SEAPLEX cruise, where samples were collected using a manta net, 333-μm mesh, towed for 15 minutes at the surface, with samples preserved in 5% formaldehyde buffered with sodium tetraborate. Salps were identified to species, life history phase (oozooid or blastozooid), and measured for zooid length. The length of the stomach was measured, noted for degree of fullness, and dissected from each salp. Dissected salp stomachs were cut in half and placed in 15 mL of Milli-Q water for at least 24 hours to soften and release gut contents. The contents were then vacuum-filtered onto 5-μm pore polycarbonate filters with an additional 70 mL of Milli-Q water to aid in filtration. Those filters were analyzed with modified epifluoresecence microscopy techniques for microplastic particles. All microplastic particles were analyzed for plastic shape, length, surface area, and fluorescence. Ingestion rate of particles/hour for each salp was measured.
Ingested Nano- and Microplastic Particle Lengths and Surface Areas, dissected from salp guts, analyzed with Epifluorescence microscopy, collected aboard multiple cruises SEAPLEX in 2009, SKrillEx I in 2014, and SKrillEx II in 2015.
Salps were collected on SKrillEx I and II during nightly transects in 202-μm mesh bongo tows, towed to approximately 200 m depth, and samples were preserved in 5% formaldehyde buffered with sodium tetraborate. We also used zooplankton samples collected on the August 2009 SEAPLEX cruise, where samples were collected using a manta net, 333-μm mesh, towed for 15 minutes at the surface, with samples preserved in 5% formaldehyde buffered with sodium tetraborate. Salps were identified to species, life history phase (oozooid or blastozooid), and measured for zooid length. The length of the stomach was measured, noted for degree of fullness, and dissected from each salp. Dissected salp stomachs were cut in half and placed in 15 mL of Milli-Q water for at least 24 hours to soften and release gut contents. The contents were then vacuum-filtered onto 5-μm pore polycarbonate filters with an additional 70 mL of Milli-Q water to aid in filtration. Those filters were analyzed with modified epifluoresecence microscopy techniques for microplastic particles. All microplastic particles were analyzed for plastic shape, length, surface area, and fluorescence.
Nano- and Microplastic Particle Lengths and Surface Areas, analyzed with Epifluorescence microscopy, collected aboard the student cruise on R/V Falkor (2013).
Surface seawater was collected in stainless steel buckets on a transect from Seattle to Honolulu, in October 2013. Surface seawater samples were filtered on to 5-µm pore polycarbonate filters, and frozen at sea for later analysis. Once back on land, the frozen transparent polycarbonate (PC) filters were filtered on an all-glass apparatus and then imaged with modified epifluorescence microscopy techniques for microplastic particles. All microplastic particles were analyzed for plastic shape, length, surface area, and fluorescence.
Nano- and Microplastic Abundance, analyzed with Epifluorescence microscopy, collected aboard the student cruise on R/V Falkor (2013).
Surface seawater was collected in stainless steel buckets on a transect from Seattle to Honolulu, in October 2013. Surface seawater samples were filtered on to 5-µm pore polycarbonate filters, and frozen at sea for later analysis. Once back on land, the frozen transparent polycarbonate (PC) filters were filtered on an all-glass apparatus and then imaged with modified epifluorescence microscopy techniques for microplastic particles. All microplastic particles were analyzed for plastic shape, length, surface area, and fluorescence.
CYGNSS Level 3 Ocean Microplastic Concentration Version 3.2
The CYGNSS L3 Ocean Microplastic Concentration V3.2 dataset is provided by the CYGNSS Science Team of the University of Michigan.CYGNSS was launched on 15 December 2016, it is a NASA Earth System Science Pathfinder Mission that was launched with the purpose of collecting the first frequent space‐based measurements of surface wind speeds in the inner core of tropical cyclones. Originally made up of a constellation of eight micro-satellites, the observatories provide nearly gap-free Earth coverage using an orbital inclination of approximately 35° from the equator, with a mean (i.e., average) revisit time of seven hours and a median revisit time of three hours.<br><br>This dataset contains the version 3.2 CYGNSS Level 3 ocean microplastic concentration data record, which provides daily netCDF files, each file containing a gridded map of microplastic number density (#/km^2). Microplastic concentration number density is indirectly estimated by an empirical relationship between ocean surface roughness and wind speed (Evans and Ruf, 2021). User caution is advised in regions containing independent, non-correlative factors affecting ocean surface roughness, such as anomalous atmospheric conditions within the Intertropical Convergence Zone, biogenic surfactants (such as algal blooms), oil spills, etc. This product reports microplastic concentration on a daily temporal and 0.25-degree latitude/longitude spatial grid with 30-day, 1 degree latitude/longitude feature resolution, as constrained by the binning and spatial temporal averaging of the Mean Square Slope (MSS) anomaly (i.e., difference between measured and predicted ocean surface roughness for a given wind speed). Version 3.2 uses CYGNSS MSS measurements that are derived from updated v3.2 Level 1 scattering cross section data and has updated the parameterizations in the data processing algorithm to use v3.2 data correctly.
CYGNSS L3 Ocean Microplastic Concentration V1.0
This dataset contains the version 1.0 CYGNSS level 3 ocean microplastic concentration data record, which provides 18 netCDF files, each containing one month of daily gridded maps of microplastic number density (#/km^2). Microplastic concentration number density is indirectly estimated by an empirical relationship between ocean surface roughness and wind speed (Evans and Ruf, 2021). User caution is advised in regions containing independent, non-correlative factors affecting ocean surface roughness, such as anomalous atmospheric conditions within the Intertropical Convergence Zone, biogenic surfactants (such as algal blooms), oil spills, etc. This product reports microplastic concentration on a daily temporal and 0.25-degree latitude/longitude spatial grid with 30-day, 1 degree latitude/longitude feature resolution, as constrained by the binning and spatiotemporal averaging of the Mean Square Slope (MSS) anomaly (i.e., difference between measured and predicted ocean surface roughness for a given wind speed).
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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.