Results 161 to 170 of about 531,401 (202)

Observer variation and reproducibility of endoscopic ultrasonography

Gastrointestinal Endoscopy, 1995
To investigate interobserver variation and reproducibility of endosonographic findings, both experienced and inexperienced endosonographers evaluated depth of tumor invasion (T stage) and presence of lymph node metastasis (N stage) in 50 patients with nonobstructing esophageal carcinoma.
M F, Catalano, M V, Sivak, R A, Bedford, G W, Falk, R, van Stolk, F, Presa, J, Van Dam   +6 more
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Observer variation in measured ST-segment elevation

Annals of Emergency Medicine, 1999
ST-segment elevation is used to make early decisions about using thrombolytic therapy in patients with suspected myocardial infarction. This study was performed to assess interobserver and intraobserver variation in subjects' measurements of ST-segment elevation in isolated ECG complexes.We performed a masked, paired-sample experiment.
D, Tandberg, K D, Kastendieck, S, Meskin
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Modelling solar irradiance variations: Comparison with observations, including line-ratio variations

Space Science Reviews, 2000
Solar irradiance variations show a strong temporal and spectral dependence. The progression of the Sun through its activity cycle as well as solar rotation are mirrored in the irradiance variations. The spectral dependence is such that the variations are several magnitudes larger in the EUV than in the visible or infrared.
Unruh, Y., Solanki, S., Fligge, M.
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Observed phenotypic variation in a Paleozoic bryozoan

Paleobiology, 1995
Documentation of morphologic variation within and among fossil species (and larger clades) provides fundamental data needed for studies of evolution, paleoecology, and the systematic foundation required for most fields of paleobiology. In paleontological (and, frequently, biological) studies, morphologic variation is used as a general proxy for genetic
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Observer and experimental variation in tuberculin testing

Tubercle, 1970
Abstract Investigations into the experimental and observer variations of the Mantoux and the multiple puncture (Heaf) tests are described. They were carried out on patients in a mental hospital and on students in four high schools in Western Australia. Tests were performed by one operator and the reactions read by up to three observers on from one to
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Variation of Stereoscopic Acuity with Observation Distance

Journal of the Optical Society of America, 1963
The stereoscopic acuity of five subjects was investigated in two consecutive and related studies. In the first one a modified horopter apparatus was used and the stereoscopic acuity was determined, at a mean retinal locus of 4° to the left of the fovea, at the 333- and 1000-mm observation distances.
openaire   +2 more sources

Accuracy and observer variation

Clinical Radiology, 1997
P. Robinson, D. Wilson
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Observer variation in clinical onchocerciasis

Transactions of the Royal Society of Tropical Medicine and Hygiene, 1974
P J, Hamilton, T F, de Marshall, J, Anderson, H, Fuglsang   +3 more
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Integrative oncology: Addressing the global challenges of cancer prevention and treatment

Ca-A Cancer Journal for Clinicians, 2022
Jun J Mao,, Msce, Lorenzo Cohen, Karen M Mustian   +2 more
exaly  

Observer variation—how many observers for generalizability?

Fertility and Sterility, 2001
Neal G Mahutte, Aydin Arici, Antoni Duleba   +2 more
openaire   +1 more source