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89 results for “direct measurement”
Direct observation and measurements of subglacial deformation in a tunnel beneath Wright Lower Glacier, Antarctica
<p>Photographs and video of a tunnel excavated in the margin of Wright Lower Glacier, Antarctica</p>
Comparing a Direct Versus an Indirect Approach to Measuring the Portalsytemic Pressure Gradients
ClinicalTrials.gov study NCT04987034. IPD Sharing: UNDECIDED. Countries: 3. Publications: 1.
Investigating in Humans the Impact of Training Status on Dietary Consumption With Direct Measurement of Ingestive Behaviour
ClinicalTrials.gov study NCT07082582. IPD Sharing: NO. Countries: 1. Publications: 20.
Ultrasound Evaluation Versus Direct Measurement of Uterine Cavity Length
ClinicalTrials.gov study NCT04425577. IPD Sharing: NO. Countries: 1. Publications: 4.
The Accuracy of Direct Digital Intra-oral Scanning Measurements Compared to Measurements on Study Models
ClinicalTrials.gov study NCT02364414. IPD Sharing: Not stated. Countries: 1. Publications: 17.
Measurement of Forces Applied Using a Macintosh Direct Laryngoscope Compared to GlideScope Video Laryngoscope
ClinicalTrials.gov study NCT01814176. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Baseline Concentration of Direct Oral Anticoagulant and Incidence of Adverse Event Measure And See (MAS)
ClinicalTrials.gov study NCT03803579. IPD Sharing: Not stated. Countries: 1. Publications: 2.
Direct Measurement of Ingestive Behaviour in Relation to Sex Differences and Gastrointestinal Hormone Levels in Patients After Metabolic and Bariatric Surgery
ClinicalTrials.gov study NCT06538948. IPD Sharing: NO. Countries: 1. Publications: 7.
Mechanical Ventilation, Directed by Esophageal Pressure Measurements, in Patients With Acute Lung Injury
ClinicalTrials.gov study NCT00127491. IPD Sharing: NO. Countries: 1. Publications: 5.
Experimentally measured group direct benefits according to worker density explain group living of the termite Reticulitermes chinensis
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Data from: Flight paths of seabirds soaring over the ocean surface enable measurement of fine-scale wind speed and direction
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Data from: Direct measurement of swimming and diving kinematics of giant Atlantic bluefin tuna (Thunnus thynnus)
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Data from: First direct measurements of behavioural responses by Cuvier’s beaked whales to mid-frequency active sonar
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Data from: Direct measurement of ant predation of weed seeds in wheat cropping
The ecosystem service of predation of weed seeds by naturally occurring seed-eating animals, including ants, in agricultural fields has been suggested to be a potentially important biocontrol option. Laboratory and field tests have found high levels of seed removal from experimentally placed seed; however, the effect of predation on naturally dispersed weed seeds is unknown. We measured the effect of invertebrate seed predators on natural weed seed dispersal and germination in a field experiment under commercial growing conditions. The two-factor, large-scale field experiment in a field used to grow wheat with conservation tillage, used an insecticide to remove soil invertebrates (ants had been reduced by 85% relative to water controls) and shallow tillage for mechanical weed removal (no effect on ants). There was one natural weed seeding event, when a wind storm blew one single incursion of Salsola australis (Chenopodiaceae) tumbleweeds across the field. We measured the number of tumbleweeds after two months and found the removal of ants resulted in a doubling of tumbleweeds: 3383 ± 513 weeds ha−1 in the insecticide treatment plots compared with 1768 ± 100 weeds ha−1 in the water control treatment plots, and 1948 ± 227 weeds ha−1 in the rest of the field. The difference in tumbleweed germination and growth was not due to growing conditions. We measured soil nutrients before the incursion and soil moisture during the weed growing period, and found that there were higher levels of nitrogenous compounds in water control plots, but no other nutrient or moisture differences, than insecticide exclusion plots. Synthesis and applications. Our results provide evidence that the ecosystem service of ant predation of naturally dispersed weed seeds limits weed abundance in commercial cereal fields in warmer climates. The fields were not managed to increase ants; alternative conservation agricultural management methods that promote agro-ecology, including low or zero tillage and low insecticide use, could increase ant abundance and thereby reduce weeds. The use of seed predators as a type of biocontrol agent will need to be integrated with other weed management methods, including herbicides and shallow tillage, although the latter may conflict with ant survival. The use of seed predators may be particularly advantageous in organic systems, or locations where economic margins are low.
Figureȱ 2.ȱ Graphȱ plottingȱ skullȱ max.ȱ widthȱ againstȱ totalȱ lengthȱ (billȱ tipȱ toȱ rearȱ ofȱ skull)ȱ forȱ skinsȱ ofȱ threeȱ species of Campephilus woodpecker in the NHMUK collection. Also shown are analogous measurements fromȱ theȱ unidentifiedȱ NHMUKȱ skeleton,ȱ forȱ whichȱ aȱ correctionȱ factorȱ upwardsȱ ofȱ 17.28%ȱ hasȱ beenȱ madeȱ to total skull length, to account for its missing rhamphotheca (see text for explanation), thereby making its measurements directly comparable with the others. in The conundrum of an overlooked skeleton referable to Imperial Woodpecker Campephilus imperialis in the collection of the Natural History Museum at Tring
Figureȱ 2.ȱ Graphȱ plottingȱ skullȱ max.ȱ widthȱ againstȱ totalȱ lengthȱ (billȱ tipȱ toȱ rearȱ ofȱ skull)ȱ forȱ skinsȱ ofȱ threeȱ species of Campephilus woodpecker in the NHMUK collection. Also shown are analogous measurements fromȱ theȱ unidentifiedȱ NHMUKȱ skeleton,ȱ forȱ whichȱ aȱ correctionȱ factorȱ upwardsȱ ofȱ 17.28%ȱ hasȱ beenȱ madeȱ to total skull length, to account for its missing rhamphotheca (see text for explanation), thereby making its measurements directly comparable with the others.
Direct measurement of torsional properties of single fibers
<p>This dataset is related to our paper "Dabiao Liu, Kai Peng, and Yuming He*. Direct Measurement of Torsional Properties of Single Fibers. Measurement Science and Technology, 27 (2016), 115017.". In this work, a direct technique is established based on the principle of torsion balance. The technique applies twist to the specimen and balances the resulting torque against a torsion wire of known torsional rigidity. The torsional rigidity of the torsion wire is determined by a torsion pendulum. To measure the rotation of the torsion wire, a sensitive angle detector, comprising a thin cross-beam attached between the torsion wire and the fiber specimen and a laser displacement sensor, is developed. The presented technique permits the measurement of torque in single fibers as low as 10<sup>-9</sup> Nm with a reasonable resolution. Using this technique, torsion tests on micro-diameter copper wires, silver wires and carbon fibers were performed. The longitudinal shear modulus and other torsional properties of these samples, such as yielding shear strength, were obtained.</p>
Information theory-based direct causality measure to assess cardiac fibrillation dynamics
<p>This repository contains the optical imaging data used in the article "Information theory-based direct causality measure to assess cardiac fibrillation dynamics"</p>
Biomarkers of Cardiometabolic Risk in Children Treated With Antipsychotics: A Preliminary Study of Direct Measures
ClinicalTrials.gov study NCT00894738. IPD Sharing: Not stated. Countries: 1. Publications: 0.
Direct Measurement of Motor Cortical Responses to tDCS
ClinicalTrials.gov study NCT04759898. IPD Sharing: NO. Countries: 1. Publications: 0.
Data from: Direct measurement of ant predation of weed seeds in wheat cropping
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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.