West Virginia University

About: West Virginia University is a education organization based out in Morgantown, West Virginia, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 25632 authors who have published 48308 publications receiving 1343934 citations. The organization is also known as: WVU & West Virginia University, WVU.

Power in the Classroom I: Teacher and Student Perceptions.

Abstract: The primary focus of this study was to determine the degree to which teachers and students have shared perceptions of the use of power in the classroom. The results indicated that even though statistically significant associations between teacher and student perceptions were found, teacher/student perceptions of the use of power are not isomorphic. The results also indicated that both teachers and students view the overwhelming proportion of power use to stem from reward, referent, and expert bases.

Mechanism of disc rupture. A preliminary report.

Abstract: Lumbar intervertebral disc herniation is thought to be related to senescent changes in the nucleus pulposus except in rare instances of trauma. This investigation provides the first in vitro model of disc prolapse that reliably ruptures discs under physiologically reasonable stress. Fourteen vertebral motion segments with intact posterior elements were loaded repetitively at 1.5 Hz in a combination of flexion (7 degrees), rotation (less than 3 degrees), and compression (1,334 N) for an average of 6.9 hours (range, 3.0-13.0 hours) in a materials testing machine. Loading was terminated when reaction force leveled off for more than 1 hour. Ten discs failed through annular protrusions, and four failed by nuclear extrusion through annular tears, supporting the hypothesis that intervertebral disc prolapse is peripheral in origin. The annulus fibrosus is the site of primary pathologic change.

Guidelines for the Evaluation of Valvular Regurgitation After Percutaneous Valve Repair or Replacement: A Report from the American Society of Echocardiography Developed in Collaboration with the Society for Cardiovascular Angiography and Interventions, Japanese Society of Echocardiography, and Society for Cardiovascular Magnetic Resonance

Abstract: The followi document: MD, FASE; sukochi, M following a M. Asch, M core lab pro tis, Abbott/ DirectFlow D. Gillam,M tronic; Pau dyne and r Medtronic, Guidelines for the Evaluation of Valvular Regurgitation After Percutaneous Valve Repair or Replacement A Report from the American Society of Echocardiography Developed in Collaboration with the Society for Cardiovascular Angiography and Interventions, Japanese Society of Echocardiography, and Society for Cardiovascular Magnetic Resonance

Metastases of cancer to cancer.

Abstract: An unusual case of metastasis of cancer to cancer is reported. The initial malignancy, an adenocarcinoma of the kidney (hypernephroma), was found to have widespread metastases involving the lungs, liver, spleen, left adrenal gland, stomach and small intestine. A primary undifferentiated bronchogenic carcinoma originating in the right mainstem bronchus also existed with widespread metastases to the mediastinal lymph nodes, left lung, liver and left kidney with secondary deposits within the sites of the metastatic hypernephroma. A review of the literature is presented and indicates that in most of the reported cases an instance in which both malignancies display widespread metastases is exceedingly rare as is the occurrence of metastases to the metastases, as most situations involve metastasis to the second primary tumor.