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68 results for “measurement repeatability”
Intra- and Inter-Format Variability of Psychophysiological and Technical Responses in Different Small-Sided Soccer Game Formats: A Repeated Measures Study
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FIGURE 6. Both MFL and C2T in Repeatability and precision in proboscis length measurements for long proboscid flies
FIGURE 6. Both MFL and C2T measurements of Prosoeca spp. are plotted against prementum length to visualize their consistency. Lack of precision of C2T measurements (open circles) is evident from their scatter between the prementum length (1:1 line) and the MFL (closed circles). In some cases, the VRM displacement was not measured so there is no corresponding C2T measurement.
FIGURE 5 in Repeatability and precision in proboscis length measurements for long proboscid flies
FIGURE 5. Paired measurements of MFL (closed circles) and C2T (open circles) plotted against the prementum length (1:1 line) for Philoliche spp. Paired measurements are joined by vertical lines. Note that in some cases, the C2T measurement for a specimen is greater than its MFL, or less than the prementum length. Negative VRM displacement values result when the prementum is fully retracted into the head.
FIGURE 4 in Repeatability and precision in proboscis length measurements for long proboscid flies
FIGURE 4. Extent of potential proboscis extension by species/species group (labrum length mm). Bold bar indicates median, upper and lower box bounds indicate 25th and 75th percentiles (=middle 50% of data). Error bars indicate the smaller of either 1) 1.5 x interquartile range (~ 2 standard deviations), or 2) maximum/minimum value; outliners are points beyond these error bars.
FIGURE 3 in Repeatability and precision in proboscis length measurements for long proboscid flies
FIGURE 3. Morphology of the ventral rostral membrane. A and B: Close up of proximal section of the proboscis in Prosoeca ganglbaueri showing the partially extended VRM (green), labrum (LBR, part of syntrophium, blue), and prementum (orange). Note the finger-like projection of the distal end of the prementum. Because this varies in size and is often not visible, measurement of the prementum is taken from the first point the prementum is complete ventrally. C. Lateral view of disarticulated proboscis in Prosoeca ganglbaueri. D. VRM displacement of the prementum can be difficult to see except upon close examination. Here the stretched VRM has dried inconspicuously onto the syntrophium.
FIGURE 1. A in Repeatability and precision in proboscis length measurements for long proboscid flies
FIGURE 1. A. Three specimens of Philoliche gulosa showing the proboscis in various states of preservation: maximum ventral rostral membrane (VRM) displacement, moderate VRM displacement, full retraction of the prementum into the head (from top to bottom); B. Extension of the VRM changes the appearance of the proboscis length of two specimens with similar proboscis lengths (PL= prementum length, MFL=Maximum Functional length, C2T= Clypeus to tip length); C. Close up of proboscis belonging to top-most specimen in A and B above (SIM 1807B), showing the disarticulation of the syntrophium from the VRM and prementum (LBR=labrum, part of syntrophium).
Repeatability and Reproducibility of Lens Zonule Length Measurement Using ArcScan Insight 100
ClinicalTrials.gov study NCT05657951. IPD Sharing: NO. Countries: 1. Publications: 2.
Repeat PET/CT Imaging in People With CAPS and Anakinra-Induced Amyloidosis Using an Amyloid-Reactive Peptide to Measure Changes in Organ-Specific Amyloid Load
ClinicalTrials.gov study NCT06974877. IPD Sharing: YES. Countries: 1. Publications: 3.
Correlation Between Duration of Fasting and Response to Fluid Replenishment, Evaluated With Repeated Measures of VTI.
ClinicalTrials.gov study NCT03599973. IPD Sharing: UNDECIDED. Countries: 1. Publications: 8.
Study on the Repeatability of Cardiac Output Measurements Dependence of Temperature of Injectate
ClinicalTrials.gov study NCT00464750. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Repeatability and Concordance of VA Measured With ETDRS Numeric , Landolt C, and Letter Charts in Thai Individuals
ClinicalTrials.gov study NCT02810665. IPD Sharing: NO. Countries: 1. Publications: 4.
This Repeated Measures Parallel-group Investigation Will Examine the Influence of Short-term Melatonin Supplementation (5mg, 3 x Day for 72 Hours) on Cellular Responses, Functional Performance and Rec
ClinicalTrials.gov study NCT06617351. IPD Sharing: NO. Countries: 1. Publications: 10.
Evaluation of the Measurement Properties of a 5 Time Repeated Instrumented Timed Up and Go (5iTUG)
ClinicalTrials.gov study NCT03769220. IPD Sharing: NO. Countries: 1. Publications: 4.
The Benefit of UHR-CT: Precision of Repeated Volume Measurements of Pulmonary Nodules
ClinicalTrials.gov study NCT04209972. IPD Sharing: UNDECIDED. Countries: 1. Publications: 17.
The Effect of Cognitive Function as Measured by Repeated Cognitive Measures After 12 Weeks Treatment With Donepezil
ClinicalTrials.gov study NCT01024660. IPD Sharing: Not stated. Countries: 4. Publications: 1.
Repeatability and Reproducibility of the Measurement of Young's Modulus Using Shear Wave Elastography in Volunteers
ClinicalTrials.gov study NCT01903343. IPD Sharing: Not stated. Countries: 1. Publications: 5.
Short and Mid-term Repeatability of Active Anterior Rhinomanometry (AAR) Measurements in Paediatric Age
ClinicalTrials.gov study NCT03286049. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Repeatability in Measurements of Two ssOCT and One OLCR Biometer
ClinicalTrials.gov study NCT04255706. IPD Sharing: NO. Countries: 1. Publications: 1.
Data from: To change or not to change experimenters: caveats for repeated behavioural and physiological measures in Montagu's Harrier
Animals facing anthropogenic disturbances may exhibit different anti-predator responses depending on their perception of the risk. Experimental measures of behavioural and physiological traits may be impacted by the disturbance due to experimenter handlings and activities. In this study, we assessed the behavioural and physiological responses of Montagu's harrier chicks (Circus pygargus) from 14 nests, visited four times from hatching to fledgling by either the same (group I) or different (group NI) experimenters. Escape, aggressiveness and stress-induced corticosterone concentration increased for both groups over time but chicks from group I showed a higher increase in their behavioural and physiological responses than chicks from group NI. This increase occurred after the second visit when experimenters took the first blood sampling on nestlings. Handling by the same experimenters throughout the study did not result in habituation but in sensitization. Our results suggest that Montagu's harrier nestlings may discriminate between the people who visit their nests and respond to experimenters' identity. Therefore, we urge researchers working on behaviour and/or the physiology of stress including repeated measurements (such as animal personality studies for instance) to consider whether the experiments should or should not be realized by the same experimenters (as usually done to minimize bias) as it can influence the outcomes of the experiments.
Data from: Estimation of individual growth trajectories when repeated measures are missing
Individuals in a population vary in their growth due to hidden and observed factors such as age, genetics, environment, disease, and carryover effects from past environments. Because size affects fitness, growth trajectories scale up to affect population dynamics. However, it can be difficult to estimate growth in data from wild populations with missing observations and observation error. Previous work has shown that linear mixed models (LMMs) underestimate hidden individual heterogeneity when over 25% of repeated measures are missing. Here we demonstrate a flexible and robust way to model growth trajectories. We show that state-space models (SSMs), fit using R package growmod, are far less biased than LMMs when fit to simulated datasets with missing repeated measures and observation error. This method is much faster than MCMC methods, allowing more models to be tested in a shorter time. For the scenarios we simulated, SSMs gave estimates with little bias when up to 87.5 % of repeated measures were missing. We use this method to quantify growth of Soay sheep, using data from a long-term mark-recapture study, and demonstrate that growth decreased with age, population density, weather conditions, and when individuals are reproductive. The method improves our ability to quantify how growth varies among individuals in response to their attributes and the environments they experience, with particular relevance for wild populations.
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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.