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2,281 results for “laboratories”
Figure 38 in Economically Beneficial Ground Beetles. The specialized predators Pheropsophus aequinoctialis (L.) and Stenaptinus jessoensis (Morawitz): Their laboratory behavior and descriptions of immature stages (Coleoptera: Carabidae: Brachininae)
Figure 38. Head and prothorax (left lateral aspect) of P. aequinoctialis, third instar.
Dataset S2 - NGS-based S. aureus typing and outbreak analysis in clinical microbiology laboratories: lessons learned from a Swiss-wide proficiency test
<p>Supplemental material of article "NGS-based S. aureus typing and outbreak analysis in clinical microbiology laboratories: lessons learned from a Swiss-wide proficiency test" by D. Dylus et al. Please refer to Methods therein.</p> <p>Assemblies and SNP calls for increment 3, including associated pseudonymised epidemiological information.</p>
Dataset S1 - NGS-based S. aureus typing and outbreak analysis in clinical microbiology laboratories: lessons learned from a Swiss-wide proficiency test
<p>Supplemental material of article "NGS-based S. aureus typing and outbreak analysis in clinical microbiology laboratories: lessons learned from a Swiss-wide proficiency test" by D. Dylus et al. Please refer to Methods therein.</p> <p>FASTQ datasets for increment 2., including associated pseudonymised epidemiological information. </p>
Data from: Puma energetics: laboratory oxygen consumption and GPS information from free-ranging individuals
<span><b><u>Abstract</u></b></span> <p class="Default"><b>Background</b></p> <p class="Default">Under current scenarios of climate change and habitat loss, many wild animals, especially large predators, are moving into novel energetically challenging environments. Consequently, changes in terrain associated with such moves may heighten energetic costs and effect the decline of populations in new localities.</p> <p class="Default"><b>Methods</b></p> <p class="Default">To examine locomotor costs of a carnivorous mammal moving in mountainous habitats, the oxygen consumption of captive pumas (<i>Puma concolor</i>) was measured during treadmill locomotion on level and incline (6.8ᵒ) surfaces. These data were used to predict energetic costs of locomotor behaviours of free-ranging pumas equipped with GPS/accelerometer collars in California's Santa Cruz Mountains.</p> <p class="Default"><b>Results</b></p> <p class="Default">Incline walking resulted in a 42.0%±7.2 SEM increase in transport costs compared to level performance. Wild pumas modified their locomotor behaviour in response to terrain steepness by traversing the mean hillside incline of 17.2ᵒ±0.3 SEM and choosing shallower paths of 7.3ᵒ±0.1 SEM. Pumas also walked more slowly up steeper paths, thereby minimizing the energetic impact of vertical terrains. Estimated daily energy expenditure of (DEE) based on GPS-derived speeds of free-ranging pumas was 18.3 MJ day<sup>-1</sup> ±0.2 SEM. Calculations show that a 20ᵒ increase in mean terrain steepness would increase DEE by <1% as pumas spent a small (10%) proportion of their day travelling and avoided elevated costs by utilizing slower speeds and shallower paths.</p> <p class="Default"><b>Conclusions</b></p> <p class="Default">While many factors influence survival in novel habitats, we illustrate the importance of behaviours which reduce locomotor costs when traversing new, energetically challenging environments, and demonstrate that these behaviours are utilised by pumas in the wild.</p> <p> </p> <p> </p>
Water level response in wells to dynamic shaking in confining unconsolidated sediments: a laboratory study
<p class="15"><span>This article focuses on laboratory experiments designed to investigate the influence of dynamic shaking on water level fluctuation in wells of unconsolidated sediments. A large flume filled with natural sandy sediments was subjected to horizontal dynamic loading at different frequencies (0.5-15Hz) and accelerations (0.1g, 0.15g, 0.25g and 0.5g), generated by a shaking table. Thus, the change in characteristics of the water and saturated sediments were investigated, including how water level and hydraulic properties changed over time, are of significant interest. A range of water level changes following the oscillating pore pressure for hydrostatic and hydrodynamic (flowing) conditions were observed: oscillation, step-rise, step-rise with oscillation, and step-drop with oscillation, similar to those observed in nature after earthquakes. We find that water level declines occur when the imposed frequency is less than 2Hz, while the acceleration has weak correlation on the water level change when it is less than 0.5g. Sinusoidal wave propagation reduces hydraulic conductivity first sharply which then stabilizes at a constant value with a slight increase. Heterogeneous consolidation, mechanical resonance, compaction, dilation, and re-packing of the grain structure may constitute a physically plausible mechanism for water level fluctuations and hydraulic parameters adjustment. Laboratory experiments can therefore provide quantitative and process-oriented approach to better understand water level response to seismic waves.This article focuses on laboratory experiments designed to investigate the influence of dynamic shaking on water level fluctuation in wells of unconsolidated sediments. A large flume filled with natural sandy sediments was subjected to horizontal dynamic loading at different frequencies (0.5-15Hz) and accelerations (0.1g, 0.15g, 0.25g and 0.5g), generated by a shaking table. Thus, the change in characteristics of the water and saturated sediments were investigated, including how water level and hydraulic properties changed over time, are of significant interest. A range of water level changes following the oscillating pore pressure for hydrostatic and hydrodynamic (flowing) conditions were observed: oscillation, step-rise, step-rise with oscillation, and step-drop with oscillation, similar to those observed in nature after earthquakes. We find that water level declines occur when the imposed frequency is less than 2Hz, while the acceleration has weak correlation on the water level change when it is less than 0.5g. Sinusoidal wave propagation reduces hydraulic conductivity first sharply which then stabilizes at a constant value with a slight increase. Heterogeneous consolidation, mechanical resonance, compaction, dilation, and re-packing of the grain structure may constitute a physically plausible mechanism for water level fluctuations and hydraulic parameters adjustment. Laboratory experiments can therefore provide quantitative and process-oriented approach to better understand water level response to seismic waves.</span></p>
Data from: Royal dynasties as human inbreeding laboratories: the Habsburgs
The European royal dynasties of the Early Modern Age provide a useful framework for human inbreeding research. In this article, consanguineous marriage, inbreeding depression and the purging of deleterious alleles within a consanguineous population are investigated in the Habsburgs, a royal dynasty with a long history of consanguinity over generations. Genealogical information from a number of historical sources was used to compute kinship and inbreeding coefficients for the Habsburgs. Marriages contracted by the Habsburgs from 1450 to 1750 presented an extremely high mean kinship (0.0628 {plus minus} 0.009), which was the result of the matrimonial policy conducted by the dynasty to establish political alliances through marriage. A strong inbreeding depression for both infant and child survival was detected in the progeny of 71 Habsburg marriages in the period 1450-1800. The inbreeding load for child survival experienced a pronounced decrease from 3.98 {plus minus} 0.87 in the period 1450-1600 to 0.93 {plus minus} 0.62 in the period 1600-1800, temporal changes in the inbreeding depression for infant survival were not detected. Such reduction of inbreeding depression for child survival in a relatively small number of generations could be caused by elimination of deleterious alleles of large effects according with predictions from purging models. The differential purging of the infant and child inbreeding loads suggests that the genetic basis of inbreeding depression was probably very different for infant and child survival in the Habsburg lineage. Our findings provide empirical support that human inbreeding depression for some fitness components might be purged by selection within consanguineous populations.
A laboratory 3D scan in the Univeristy of Alicante, Spain
<p>A laboratory scan is available for students to observe how a 3D laser scanner works. The scan and target coordinates are included in the files.</p><p>Three files are available:</p><ol><li>231120 LaboratorioTerreno.e57 -- Raw 3DPC, levelled</li><li>231120 LaboratorioTerreno.txt -- Vertexes of the targets</li><li>231120 Scan laboratorio.bin -- Clear laboratory file, .bin for CloudCompare</li></ol>
Figure 2 from: Neumann M, Ehnert F (2024) Knowledge re-integration in real-world laboratories to transform cities and communities: report on workshop designs. Research Ideas and Outcomes 10: e124018. https://doi.org/10.3897/rio.10.e124018
Figure 2 Template of the online whiteboard for the handbook workshops (translated into English).
Figure 3 from: Neumann M, Ehnert F (2024) Knowledge re-integration in real-world laboratories to transform cities and communities: report on workshop designs. Research Ideas and Outcomes 10: e124018. https://doi.org/10.3897/rio.10.e124018
Figure 3 Flashlight at the end of the DF transfer workshop; photo: Torsten Görg.
Figure 4 from: Neumann M, Ehnert F (2024) Knowledge re-integration in real-world laboratories to transform cities and communities: report on workshop designs. Research Ideas and Outcomes 10: e124018. https://doi.org/10.3897/rio.10.e124018
Figure 4 On-site excursion during the SLS transfer workshop; photo: Nicole Herzog.
Supplementary Dataset to the manuscript: High intra-laboratory reproducibility of nanopore sequencing in bacterial species
<p>This repo contains the assembly files generated with long read only approach versus combined short and long read approach</p> <ul> <li>Genome assemblies (Chromosome only) using long read only approach</li> <li> <p>Genome assemblies (Chromosome only) using combined short and long read approach</p> </li> </ul>
Laboratory water quality monitoring data from full scale CS#3 DWDN for the DBP prediction model
<p>Lab measurements of water quality based on manual sampling including ordinary monitoring and special monitoring performed in SafeCREW project.</p> <p>Laboratory LIMS database.</p> <p>Provide water quality measurements based on the planned monitoring schedule. Schedule tailored to SafeCREW project needs plus usual legal water sampling.</p>
Nucleation process of laboratory earthquakes on a submeter fault under different normal stresses
<p>We conducted friction experiments on a 669 mm long granodiorite simulated fault to study the detailed spatiotemporal evolutions of nucleation zones (characterized by the strain-releasing zones) of stick-slip events under four different normal stresses via a dense array of strain rosettes (with spacing of 21 mm between the adjacent rosettes and offset distance of 8 mm from the fault). Cumulative shear strain relative to the strain at 1 s prior to the stick-slip instability is calculated for each strain rosette. By doing this, the strain-releasing zone can be detected in the spatiotemporal evolution of the cumulative shear strain. We present a typical pattern of the nucleation process under each normal stress. Under the normal stresses of 7.5 and 10 MPa, a quasi-static expanding nucleation zone initiates at <em>x </em>~ -80 mm and expands slowly and then shrinks to a critical length (referred to as the contraction nucleation length, <em>L<sub>s</sub></em>) before it merges into a subsequently accelerated expanding nucleation zone. The accelerated expanding nucleation zone initiates in the middle of the fault (<em>x </em>~ 0) near the outer edge of the quasi-static expanding nucleation zone, which first expands bilaterally at a speed of the order of m/s and then gradually accelerates towards the fault ends. When the length of the accelerated nucleation zone expands to another critical length (referred to as the ultimate nucleation length, <em>L<sub>c</sub></em>), the dynamic rupture initiates (<em>t</em> = 0). Under normal stresses of 2.5 and 5.0 MPa, the similar accelerated expanding nucleation zone is also detected but the quasi-static expanding nucleation zone is unobservable. Moreover, <em>L<sub>s</sub></em> increases but <em>L<sub>c</sub></em> decreases with increasing normal stress.</p>
Laboratory capability Survey - POPs in Food and Feed, Hubei CDC
<p>POPs analysis capability at the Hubei Centre for Disease Control (Hubei CDC), China</p>
Observations of the breakthrough phase of attachment process in laboratory long sparks
<p>The data supports the manuscript entitled "Observations of the breakthrough phase of attachment process in laboratory long sparks". The *.xlsx file contains the applied voltage waveform and discharge current waveform, and can be opened by Excel. The *.rar file contains the high-speed video frames, and can be decompressed and opened. The data can be used freely for scientific purposes with appropriate citation.</p>
A laboratory model for a meandering zonal jet
<p>Fluid velocities measured in the Large Rotating Annulus (LRA) at the Australian National University. NetCDF files containing velocity fields developed via Particle Image Velocimetry (OpenPIV Python package).</p> <p>Velocities have been transformed into azimuthal (theta_vel) and radial (rad_vel) directions.</p> <p>Filenaming convention is:</p> <p>"theta_rad_all_omega_*p*_q_*p*_run_*_*on*.nc" where</p> <p>"omega_*p*" refers to the background rotation rate of the LRA (0p5, 1p0, 1p5 for 0.5, 1.0, 1.5 radians per second, respectively);</p> <p>"q_*p*" refers to the prescribed setting on the STAD valve used to control the imposed volume flux (0p2, 0p5, 0p8, 1p3, 1p8, 4p5 for STAD valve settings 0.2, 0.5, 0.8, 1.3, 1.8, 4.5, respectively);</p> <p>"run_*" is the experiment run number;</p> <p>"*on*" refers to the ridge configuration: 1on3 is a ridge opening of 1/3 of the annulus width; 1on6 is a 1/6 opening, 1on12 is a 1/12 opening, and 0on1 is a solid ridge.</p> <p>Further information is provided in Stewart & Macleod, "A laboratory model for a meandering zonal jet", Journal of Advances in Modelling Earth Systems.</p>
COMPARATIVE ANALYSIS OF LABORATORY PARAMETERS OF HEMATOPOIESIS AND HEMOSTATIC STATUS IN PATIENTS WITH POLYCYTHEMIA AND ESSENTIAL THROMBOCYTHEMIA.
Open the record for dataset details and reuse information.
Detailed procedures and collections of photos taken during the preparation and research activities in the laboratory
<p>The authors grant all rights to the <strong>Glocolis 2024 Committee </strong>and the <strong>Indonesian Young Scientist Association (IYSA)</strong>. We declare that all work in this study was carried out equally by all authors. These are the complete procedures and collections of photos taken during the preparation and research activities in the laboratory.</p> <p>This submission is intended solely for use by the Glocolis Committee and judges, in accordance with the competition's purposes.</p> <p><strong>Research Title: </strong><br><em>Exploratory Data Analysis of RGB Brightness Values and Grey Areas in Smartphone Photographs for Identifying Adulteration and Pb(II) Contamination Scenarios in White Milk</em></p>
Movies and temperature and pressure measurements associated with the study "Mud Flow Levitation on Mars: Insights from Laboratory Simulations "
<p>Supplementary materials in the form of movies, temperature and pressure measurements associated with the study "Mud Flow Levitation on Mars: Insights from Laboratory Simulations" submitted to EPSL in 28/10/2019.</p>
Accompanying dataset for : "Nappe oscillations on free-overfall structures, data from laboratory experiments "
<p>This dataset accompanies the manuscrpit "Nappe Oscillations on Free-Overfall Structures: Data from Laboratory Experiments " submitted to Scientific Data.</p>
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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.