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2,281 results for “laboratories”
Stem temperature in watershed 27 ridge climate 77 station plot at the Coweeta Hydrologic Laboratory from 1996 to 1999
Tree stem temperature is currently being collected to determine both diurnal and seasonal variation in tree stem temperatures for all species and sizes present at the Coweeta Watershed 27 Ridge Climate 77 Station Plot. The purpose of the data is to characterize the tree stem temperature regimes as they relate to tree stem respiration. Data will continue to be collected until approximately December 1997. Data will then be subsequently summarized and published.
Acclimation common garden microclimate at the Coweeta Hydrologic Laboratory from 1999 to 2002
These microclimate data are being collected at two common garden locations to quantify the natural ambient temperatures for air and soil. This project will support other physiological projects that have been or will be collected.
Direct and indirect effects of increased bedload on algal and detrital-based stream food webs at the Coweeta Hydrologic Laboratory from 1997 to 1999: Tile/ sediment addition experiment, Summer 1997; Chlorophyll, AFDM, inorganics (days 5-40)
Anthropogenic sedimentation poses a significant threat to stream ecosystems throughout the world. Increases in bedload (sediment transported and deposited on the stream bottom) can be especially detrimental for benthic communities. To examine how increased bedload directly and indirectly affects stream communities, we simultaneously manipulated sediment and top-down effects of macroconsumers (fishes and crayfish) in situ in two factorial experiments, one using tiles and one using leaf packs as sampling substrates. Bedload was increased by adding small amounts of sediment (2.5 x normal levels) to localized areas (0.25 m2) of an otherwise unimpacted stream. This increase in bedload had direct effects on basal resources in both the tile and leaf pack experiments. In the tile experiment algal composition was altered by sediment addition, while in the leaf pack experiment fungal biomass declined with sediment.
Chemistry of Bulk Precipitation at Hubbard Brook Experimental Forest, 1969 - present, Robert S. Pierce Ecosystem Laboratory Facility
Precipitation chemistry has been measured at the Hubbard Brook Experimental Forest since 1963. This data set includes volume-weighted, average, monthly concentrations of cations, anions, and pH. Monthly averages are calculated from samples collected at weekly intervals from HBEF Raingage 22 (RG-22), adjacent to the Robert S. Pierce Ecosystem Laboratory. 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.
Pond Laboratory Meteorological Station at the Kellogg Biological Station, Hickory Corners, MI (2007 to 2010)
Dataset Abstract Wind direction and speed, solar radiation, photosynthetically active radiation, rainfall, air temperature, and relative humidity are recorded hourly. original data source http://lter.kbs.msu.edu/datasets/4
Laboratory spectral reflectance measurements of pine/spruce twigs and snow
<p>The dataset contains laboratory spectral reflectance (350-2500 nm) measurements of natural snow samples and pine and spruce twigs measured with an ASD Field Spec Pro JR spectroradiometer. For snow types sampled, in situ snow measurements are accompanied with the reflectance data. The measurements have been conducted at the premises of the Arctic Space Centre of the Finnish Meteorological Institute, Sodankylä, Finland (N67.361833, E26.634154, WGS84).</p> <p>The data are structured as CSV-files. Snow specific surface area (SSA) information and photographs of the snow samples are available for part of the measured snow types and are organized into separate folders.</p> <p>For this version a data example plot (Data_example_laboratory.png) was added to have a quick visualisation of the sort of the data available.</p> <p>For further information contact Henna-Reetta Hannula (henna-reetta.hannula@fmi.fi) or Kirsikka Heinilä (kirsikka.heinila@ymparisto.fi)</p>
Figure 2 in Field and laboratory observations on reproductive aspects of Pseudopaludicola ameghini (Copeı 1887) (Leptodactylidae: Leiuperinae)
Figure 2. Behaviours of the male and female during egg laying in Pseudopaludicola ameghini: (a) the male inserts his feet in a space between the legs and vent of the female; (b) the female lays an egg (white arrow) and the male begins to relax his hind limbs; (c) the female rubs her feet against one another.
Supporting dataset for "Numerical insights into the effects of model geometric distortion in laboratory experiments of urban flooding"
<p>The supporting datasets includes:</p> <p>(1) All the Figures in the manuscript in .fig format </p> <p> - Figures in main text</p> <p> - Figures in SI</p> <p>(2) Original matrice data for the results of each run</p> <p> - A file that explains detailed data content in tree structure;</p> <p> - 4 sub-repositories which contain data for models in different scales</p>
DETERMINANTS OF ADHERENCE TO STANDARD PRECAUTIONS FOR THE PREVENTION OF BLOODBORNE INFECTIONS AMONG MEDICAL LABORATORY SCIENTISTS IN LAGOS STATE, NIGERIA
<p>DETERMINANTS OF ADHERENCEL TO STANDARD PRECAUTIONS FOR THE PREVENTIONOF BOODBORNE INFECTIONS AMONG MEDICAL LABORATORY SCIENTISTS IN LAGOS STATE, NIGERIA</p>
The role of shear fabric in controlling breakdown processes during laboratory slow slip events
<p>Understanding the physical mechanisms at the origin of slow slip events has been proven a very challenging task. In particular little is known on the role of fault heterogeneity during slow slip. In this study we provide evidence that fault fabric controls slip velocity time histories during slow slip events generated in the laboratory under the specific boundary condition of imposing a stiffness ratio K=k/k<sub>c</sub>~1. We have performed experiments using a double-direct biaxial shear apparatus and two different fault gouges, homogeneous quartz powder and heterogeneous anhydrite/dolomite mixture. We measure fine details of fault slip to resolve the slip velocity time history and volumetric deformation that, coupled with an analysis of the resulting microstructure, allow us to infer the mechanical processes at play. Our results show that slow slip events can be generated for both fault gouges when k~k<sub>c</sub> with similar values of breakdown work. The shear fabric exerts a strong influence during the co-seismic breakdown stage of instabilities. In quartz, where most of the slip occurs on a localized (1 µm) slipping surface, the peak slip velocity is attained near the final stage of friction breakdown and therefore a relevant amount of the mechanical work is absorbed during slip acceleration to peak slip velocity. In anhydrite/dolomite mixture, the peak slip velocity is suddenly reached after a relatively small drop in friction, accompanied by fault dilation, implying that most of the mechanical work is absorbed during slip deceleration. For anhydrite/dolomite mixture these results are likely related to heterogeneous slip distribution along the observed foliation. Taken together these observations suggest that the mechanics of slow slip events depends on shear zone fabric. The slip velocity function contains the necessary dynamic information to characterize the evolution of shear stress.</p> <p>The data are uploaded are structured as follow:</p> <p>1) a .txt file of the datafile that is recorded from the machine (raw data)</p> <p>2) a reduction file (_r) that is used to elaborate the raw data</p> <p>3) a file in .txt format containing the elaborated data (data_rp) </p> <p>The data are analyzed using rawPy that can be found at <a href="https://github.com/marcoscuderi/rawPy">https://github.com/marcoscuderi/rawPy</a></p> <p>For any additional information please do not hesitate to contact the corresponding author Marco Maria Scuderi at marco.scuderi@uniroma1.it.</p>
RIBuild: Laboratory based investigations of the materials' water activity and pH relative to mould growth
<p>This dataset contains measurements of relative humidity and temperature in small test walls, from mycometer test and from measurements of moisture content in materials in the test walls.</p> <p>The objective of the study is to find the causes and conditions that lead to mould growth between a existing wall and installed insulation systems, and to suggest solutions to prevent mould growth.The study examines whether the alkaline environment (pH> 9), which may occur in the adhesive glue joint between the existing wall and the installed insulation is sufficient to prevent mould growth,even if the moisture (water activity (aw)) at the interface exceeds the levels (aw> 0.75) commonly considered critical for mould growth.</p> <p>The dataset also contains extensive photo documentation of preparations and carrying out the experiments.</p> <p>Further details to be found in appendix 5 of RIBuild deliverable 2.2 and in<br> Jensen, N.F., Bjarløv, S.P., Rode, C., Andersen, B., Møller, E.B. (submitted 2020). Laboratory based investigation of the materials’ water activity and pH relative to fungal growth in internally insulated solid masonry walls. Indoor Air. Wiley.</p> <p>Overview of data files to be found in 'RIBuild data WP2_DTU Small walls' as part of this dataset.</p>
FIGURE 6 in Morphological descriptions of the larval and first juvenile stages of the decorator crab Camposcia retusa (Latreille, 1829) from laboratory-reared material
FIGURE 6. Camposcia retusa first crab: A) maxilliped III; B) sternum; C)–G) pereiopods 1–5; H) pleopods 1–5; and I) pleon and telson (dorsal view). Scale bars: A, H and I: 150 µm; B–G: 300 µm.
FIGURE 4 in Morphological descriptions of the larval and first juvenile stages of the decorator crab Camposcia retusa (Latreille, 1829) from laboratory-reared material
FIGURE 4. Camposcia retusa megalopa: A–E) pereiopods 1–5; F) sternum; G)–J) pleopods 1–5; and K) pleon, telson and uropods (dorsal view). Scale bars: A–E and G–K: 150 µm; F: 300 µm.
FIGURE 2. Camposcia retusa zoea II in Morphological descriptions of the larval and first juvenile stages of the decorator crab Camposcia retusa (Latreille, 1829) from laboratory-reared material
FIGURE 2. Camposcia retusa zoea II: A) lateral view; B) antennule; C) antenna; D) mandible; E) maxillule; F) maxilla; G) maxilliped I; H) maxilliped II; I) maxilliped III; J) pereiopods 1–5; and K) pleon and telson (dorsal view). Scale bars: A and K: 300 µm; G, H, I and J: 150 µm; B, C, D, E and F: 75 µm.
Analysis of laboratory reporting practices using a quality assessment of a 'virtual patient'. (data)
<p>Dataset for paper Analysis of laboratory reporting practices using a quality assessment of a ‘virtual patient', published in Genetics in Medicine.</p> <p>This dataset consists of the FASTQ, BAM, and VCF for the virtual patients as described in the paper.<br> </p>
Caldera collapse vs inherited structures: a database of laboratory experiments
<p>This dataset presents the results of four experimental series of analogue models performed to investigate the role of inherited structures during caldera collapse. Our experimental series tested the role of one/two inherited discontinuities variously located with respect to an analogue magma chamber. Models have been analysed quantitatively by means of (i) photogrammetric Digital Elevation Model reconstruction and (ii) Digital Particle Image Velocimetry (DPIV) techniques. In this dataset, we show the row data supporting modelling results.</p>
Dataset for: Sensitivity of a satellite algorithm for harmful algal blooms discrimination to the use of laboratory bio-optical data for training
<p>Two files relating to the publication by Martinez-Vicente et al. (2020).</p> <p>meris_data_karenia_alt_chla.xlsx : file containing the chlorophyll concentrations for the different areas in the MODIS images selected for training and evaluation of the algorithm.</p> <p>coefficients_for_LDA_Karenia_mikimotoi.zip: file containing the coefficients for the Linear Discriminant Analysis (LDA) resulting from the training datasets 1,2 and 3. </p> <p> </p>
Comparability of Raman Spectroscopic Configurations: A Large Scale Cross-Laboratory Study
<p><strong>Slightly processed raw data for the paper 'Comparability of Raman Spectroscopic Configurations: A Large Scale Cross-Laboratory Study'</strong></p> <ul> <li>The processing include a spike removal to allow an interpolation to a common wavenumber axis.</li> <li>Always three files belong to each other: wavenumber axis file (wx_XYZ), spectral intensity file (spec_XYZ) and metadata file (meta_XYZ). The ‘XYZ’ refers to the samples measured (see the publication and its SI for details).</li> </ul>
Co-authoring graphs of research teams in a laboratory in computer science
<p>Our aim is to study inter-organisational collaborations initiated by researchers in their research activity. We considered the co-authoring graph involving at least researchers from LORIA (<a href="https://www.loria.fr/fr/">https://www.loria.fr/fr/</a>), a French laboratory in computer science.</p> <p>The dataset is collected from the open French archive HAL (<a href="https://data.archives-ouvertes.fr/">https://data.archives-ouvertes.fr/</a>).</p> <p>Each file encodes (in <a href="http://www.graphviz.org/about/">DOT</a>) the co-authoring graph of a team of LORIA. A node represents a researcher, two nodes are linked only if the corresponding researchers published together over the three considered years 2017, 2018 and 2019. An affiliation attribute is attached to each considered node.</p> <p>The name of researchers and the teams as well as the HAL:id are anonymised. Only affiliations remain the same.</p>
Genotypes of 6 InDel markers for species identification from the Calanus culture at the EMBRC-ERIC laboratory for low-level trophic interactions, NTNU SeaLab
<p><span><span><span><span><span><span><span><span><span><span><span>Late developmental stages of marine copepods in the genus <i>Calanus</i> can spend extended periods in a dormant stage (diapause). During the growth season, copepods must accumulate sufficient lipid stores to survive diapause. Predation risk is often overlooked as a potential diapause-inducing cue. We tested experimentally if predation risk in combination with high or low food availability leads to differences in lipid metabolism, and potentially diapause initiation. Expression of lipid metabolism genes showed that food availability influences the copepods' ability to cope with predator stress. Predation caused upregulation of lipid catabolism with high food, and downregulation with low food. Stage development and molecular markers demonstrated that copepods did not enter diapause, instead, development occurred faster in copepods with predator stress. This study demonstrates that lipid metabolism may be a sensitive endpoint for changes in the environment. Our findings can contribute towards understanding the mechanisms behind diapause timing. </span></span></span></span></span></span></span></span></span></span></span></p>
ScienceDex guides
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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.