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622 results for “High altitude”
Data from: Two extended haplotype blocks are associated with adaptation to high altitude habitats in East African honey bees
Understanding the genetic basis of adaption is a central task in biology. Populations of the honey bee Apis mellifera that inhabit the mountain forests of East Africa differ in behavior and morphology from those inhabiting the surrounding lowland savannahs, which likely reflects adaptation to these habitats. We performed whole genome sequencing on 39 samples of highland and lowland bees from two pairs of populations to determine their evolutionary affinities and identify the genetic basis of these putative adaptations. We find that in general, levels of genetic differentiation between highland and lowland populations are very low, consistent with them being a single panmictic population. However, we identify two loci on chromosomes 7 and 9, each several hundred kilobases in length, which exhibit near fixation for different haplotypes between highland and lowland populations. The highland haplotypes at these loci are extremely rare in samples from the rest of the world. Patterns of segregation of genetic variants suggest that recombination between haplotypes at each locus is suppressed, indicating that they comprise independent structural variants. The haplotype on chromosome 7 harbors nearly all octopamine receptor genes in the honey bee genome. These have a role in learning and foraging behavior in honey bees and are strong candidates for adaptation to highland habitats. Molecular analysis of a putative breakpoint indicates that it may disrupt the coding sequence of one of these genes. Divergence between the highland and lowland haplotypes at both loci is extremely high suggesting that they are ancient balanced polymorphisms that greatly predate divergence between the extant honey bee subspecies.
FIGURE 3 in A new species of Pleroma (Melastomataceae) from high-altitude grasslands of the state of São Paulo, Brazil
FIGURE 3. Distribution map of Pleroma curucutuense.
Acetazolamide for the Prevention of High Altitude Illness: a Comparison of Dosing
ClinicalTrials.gov study NCT01993667. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Three New Ideas to Protect Special Forces From the Stress of High Altitude
ClinicalTrials.gov study NCT02463357. IPD Sharing: NO. Countries: 1. Publications: 0.
Effects of RIC on Cognitive Function and Blood Oxygen Levels in Unacclimatized Adult at High Altitude
ClinicalTrials.gov study NCT03728114. IPD Sharing: UNDECIDED. Countries: 0. Publications: 8.
High Altitude and Exogenous Carbohydrate Oxidation
ClinicalTrials.gov study NCT03851744. IPD Sharing: NO. Countries: 1. Publications: 0.
Prevention of High Altitude Pulmonary Edema
ClinicalTrials.gov study NCT00274430. IPD Sharing: Not stated. Countries: 0. Publications: 2.
Drug Combination on Exercise Performance at High Altitude
ClinicalTrials.gov study NCT01902758. IPD Sharing: Not stated. Countries: 1. Publications: 0.
High-Altitude Hematology Observation-Stem Cell Transplantation (HALO-SCT)
ClinicalTrials.gov study NCT07205523. IPD Sharing: NO. Countries: 1. Publications: 0.
Effect of Acetazolamide on Subclinical High-Altitude Pulmonary Edema Detected by Lung Ultrasonography
ClinicalTrials.gov study NCT03490916. IPD Sharing: NO. Countries: 1. Publications: 0.
Effects of Pioglitazone on Exogenous Carbohydrate Oxidation During Steady-State Exercise at High Altitude
ClinicalTrials.gov study NCT06164665. IPD Sharing: NO. Countries: 1. Publications: 0.
Data from: Initiation of Batrachochytrium dendrobatidis infection in the absence of physical contact with infected hosts – a field study in a high altitude lake
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Data from: Going to extremes for sodium acquisition: use of community land and high-altitude areas by mountain gorillas Gorilla beringei in Rwanda
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Data from: Cognitive function and mood at high altitude following acclimatization and use of supplemental oxygen and adaptive servoventilation sleep treatments
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Data from: Two extended haplotype blocks are associated with adaptation to high altitude habitats in East African honey bees
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Data from: Convergent evolution on the hypoxia-inducible factor (HIF) pathway genes EGLN1 and EPAS1 in high-altitude ducks
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Data from: Drivers of bird species richness within moist high-altitude grasslands in eastern South Africa
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Data from: Maladaptive phenotypic plasticity in cardiac muscle growth is suppressed in high-altitude deer mice
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Association of EGLN1 gene with high aerobic capacity of Peruvian Quechua at high altitude
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TCSP HIGH ALTITUDE MMIC SOUNDING RADIOMETER (HAMSR) V1
The High Altitude MMIC Sounding Radiometer (HAMSR) is a 25-channel microwave atmospheric sounder operating as a cross-track scanner. There are three bands: an 8-channel band near 50-GHz, used for primary temperature sounding; a 10-channel band near 118 GHz, used for secondary temperature sounding and assessment of scattering; a 7-channel band near 183 GHz, used for water vapor sounding. The instrument is continuously self-calibrating using internal calibration targets. Radiometric sensitivity at the composite sampling cells provided in the archive is typically 0.1 and ranges up to 0.25 K for the stratospheric channels. Calibration accuracy is estimated at better than 1 K for temperature sounding and better than 2 K for water vapor sounding. Temperature weighting function peaks are distributed between the surface and the flight altitude. HAMSR was mounted in a wing pod of a NASA ER-2 research aircraft. The TCSP mission collected data for research and documentation of cyclogenesis, the interaction of temperature, humidity, precipitation, wind and air pressure that creates ideal birthing conditions for tropical storms, hurricanes and related phenomena. The goal of this mission was to help us better understand how hurricanes and other tropical storms are formed and intensify. Regular image processing was available beginning on 12 July. The scan schedule was maintained through the end of July.
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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.