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Dataset results
812 results for “Columnitis”
Data from: Monitoring microvascular changes over time with a repositionable 3D ultrasonic capacitive micromachined row-column sensor
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PFAS and nitrate leaching from undisturbed soil columns receiving biosolids and mitigation potential of biochar
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Stepwise shifts underlie evolutionary trends in morphological complexity of the mammalian vertebral column
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Infectivity of the parasite Metschnikowia bicuspidata is decreased by time spent as a transmission spore, but exposure to phycotoxins in the water column has no effect
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Evolutionary rates and shape variation along the anuran vertebral column with attention to phylogeny, body size, and ecology
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Comparison between ozone column depths and methane lifetimes computed by 1-D and 3-D models at different atmospheric O2 Levels
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Data from: Dynamic models for impact-initiated stress waves through snow columns
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Data from: A compendium of geochemical information from the Saanich Inlet water column
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Conserved patterns and locomotor-related evolutionary constraints in the hominoid vertebral column
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Monotonic loading performance of GFRP beam-column joints connected with slotted–hole bolts
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Data from: Plant radiocarbon across an urban-rural CO2 gradient matches surface and column CO2 observations
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Data from: Heritability in the Rhesus macaque (Macaca mulatta) vertebral column
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Functional interactions among neurons within single columns of macaque V1
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Decades of water column temperature, lake level and meteorological data of Lake Lacawac, a pristine glacial lake at Lacawac Biological Field Station in the Pocono mountains, Pennsylvania USA (1992-2019)
Lake Lacawac weather and the lake water column were monitored to observe seasonal and interannual temperature and lake level patterns in response to solar heating, wind-driven water column mixing, precipitation, evaporation, watershed runoff and seepage, and outflow (L. Lacawac has an outflow stream but no inflow stream, and is surrounded on one side by peat bogs). Several studies have shown the lake to have a slow exchange by seepage (slightly more seeping in than out except during dry months). Over the years the raft data have been used to calibrate heat flux, mixing, and evaporation models for the lake, to study zooplankton and phytoplankton distribution and dissolved organic matter flux (photobleaching in the water column, influx from the watershed, and exchange with bottom sediments) and associated UV transparency. The data have also been used to accompany experimental manipulations of lake organisms (algae, zooplankton, fish) in relation to exposure to UV radiation. More recently these lake data have been useful in developing lake indices of climate change.
Hubbard Brook Experimental Forest: Chemistry of Mirror Lake water column 1967 - 2010
Numerous studies have been conducted on Mirror Lake since the mid-1960s, including extensive physical, chemical, biological, and paleoecological research (Likens 1985). This data set includes chemistry data for water samples collected approximately monthly at an anchored buoy station located at the deepest part (11 m at full pool) of Mirror Lake. Measurements include ANC, DIC, DO, base cations, pH, ammonium, anions, temperature and dissolved silica. These data were gathered as part of the Hubbard Brook Ecosystem Study (HBES). The HBES is a collaborative effort at the Hubbard Brook Experimental Forest, which is operated and maintained by the USDA Forest Service, Northern Research Station.
McMurdo Dry Valleys LTER: Phytoplankton water column profiles in Lake Bonney, Antarctica from 2004 to 2015
Lake Bonney (McMurdo Dry Valleys, east Antarctica) represents a year-round refugia for life adapted to extreme conditions. Lake level has risen by more than 3 m since 2004, but impacts of rapid lake level rise on phytoplankton community structure is also poorly understood. From 2004 to 2015, in concert with the summer limnological samplings, an in situ submersible spectrofluorometer (bbe FluoroProbe) was used to profile phytoplankton throughout the water columns of east and west lobes Lake Bonney to quantify the vertical structure of four functional algal groups (green algae, brown/mixed algae, cryptophytes, cyanobacteria). Our findings showed that phytoplankton communities were differentially impacted by physical and chemical factors over long-term vs. seasonal time scales. Following a summer of rapid lake level rise (2010-11), an increase in depth integrated chlorophyll a (chl-a) occurred in Lake Bonney caused by stimulation of photoautotrophic green algae. Collectively our data reveal that phytoplankton groups possessing variable trophic abilities are differentially competitive during seasonal and long-term time scales owing to periods of higher nutrients (photoautotrophs) vs. light/energy limitation (mixotrophs).
Water column dissolved (DSi) and biogenic (BSi) concentrations and fluxes collected from Sweeney (Right), West (Left) and Clubhead along with temperature, salinity, and flow data from 7/2010
Found at the landesea interface, these systems are silica replete with large stocks in plant biomass, sediments, and porewater, and therefore, have the potential to play a substantial role in the transformation and export of silica to coastal waters. In an effort to better understand this role, we measured the fluxes of dissolved (DSi) and biogenic (BSi) silica into and out of two tidal creeks in the PIE LTER salt marsh system. One of the creeks (Sweeney) has been fertilized from May to September for six years allowing us to examine the impacts of nutrient addition on silica dynamics within the marsh.
List of tissue specimens of Hipposideros spp. used for cytochrome b sequencing and phylogenetic inference, with geographical data. Voucher refers to the location and/or accession number of the voucher, and tissue collection refers to the collection where the tissue is kept, and accession or collector numbers. Acronyms are as follows: Estación Biológica de DoZana, Sevilla, Spain (EBD), South Australia Museum, Adelaide, Australia (SAM), Senckenberg Museum, Frankfurt am Main, Germany (SMF), Instituto de Ecología, Xalapa, México (IEX), Louisiana State University, Baton Rouge, Louisiana, USA (LSU), Charles M. Francis, Canadian Wildlife Service, Ottawa, Ontario, Canada (CMF), Lao Department of Forestry, Vientiane, Lao PDR, no catalogued (LAO). Next column indicates GenBank accession numbers. More information about the specimens is available in the GenBank records in A new species of bat of the Hipposideros bicolor group (Chiroptera: Hipposideridae) from Central Laos, with evidence of convergent evolution with Sundaic taxa
List of tissue specimens of Hipposideros spp. used for cytochrome b sequencing and phylogenetic inference, with geographical data. Voucher refers to the location and/or accession number of the voucher, and tissue collection refers to the collection where the tissue is kept, and accession or collector numbers. Acronyms are as follows: Estación Biológica de DoZana, Sevilla, Spain (EBD), South Australia Museum, Adelaide, Australia (SAM), Senckenberg Museum, Frankfurt am Main, Germany (SMF), Instituto de Ecología, Xalapa, México (IEX), Louisiana State University, Baton Rouge, Louisiana, USA (LSU), Charles M. Francis, Canadian Wildlife Service, Ottawa, Ontario, Canada (CMF), Lao Department of Forestry, Vientiane, Lao PDR, no catalogued (LAO). Next column indicates GenBank accession numbers. More information about the specimens is available in the GenBank records
Nitrate removal and N2O production from upflow and downflow column woodchip bioreactors
<p class="ParaText"><span>Woodchip denitrifying bioreactors (WDBR) reduce off-field tile drainage nitrogen (N) losses from agricultural fields. Limited evaluation exists regarding the influence of flow direction through WDBRs. <a name="_Hlk40339771">Changing flow direction could reduce short circuiting. </a> This study evaluated the dependency of nitrate-nitrogen removal and dissolved nitrous oxide (<i>d</i>N<sub>2</sub>O) production rates on vertical flow direction in triplicate column bioreactors at 12-h (without carbon dosing) and 2-h (with carbon dosing) hydraulic residence times. Results presented demonstrate that there was no significant difference in overall nitrogen removal rates from these column bioreactors as a function of flow direction. There was the suggestion of lower nitrous oxide (N<sub>2</sub>O) production in the downflow direction, although this was not statistically significant due to the high variability of the N<sub>2</sub>O production observed in the upflow direction. <a name="_Hlk43820284">Carbon addition led to bioclogging of downflow columns; future work needs to identify dosing rate, placement, and conditions that prevent biofilm formation.</a></span></p>
Differential tissue stiffness of body column facilitates locomotion of Hydra on solid substrates
The bell-shaped members of Cnidaria typically move around by swimming, whereas the Hydra polyp can perform locomotion on solid substrates in an aquatic environment. To address the biomechanics of locomotion on rigid substrates, we studied the 'somersaulting' locomotion in Hydra. We applied atomic force microscopy to measure the local mechanical properties of Hydra's body column and identified the existence of differential Young's modulus between the shoulder region versus rest of the body column at 3:1 ratio. We show that somersault primarily depends on differential tissue stiffness of the body column and is explained by computational models that accurately recapitulate the mechanics involved in this process. We demonstrate that perturbation of the observed stiffness variation in the body column by modulating the extracellular matrix (ECM) polymerization impairs the 'somersault' movement. These results provide mechanistic basis for the evolutionary significance of differential extracellular matrix properties and tissue stiffness.
ScienceDex guides
Understand access before you commit
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.