نتایج جستجو برای: multicenter
تعداد نتایج: 40857 فیلتر نتایج به سال:
Division of Neurological Surgery, University of California Medical Center, San Diego, California; Division of Neurosurgery, University of Texas Medical Branch, Galveston, Texas; Division of Neurosurgery, The University of Texas Medical School, Houston, Texas; Department of Neurosurgery, Bronx Municipal Hospital Center, Bronx, New York; and Department of Neurological Surgery, Ben Taub Medical Ce...
INTRODUCTION Repeatability of experiments is an important criterion of modern research and a major challenge for homeopathic basic research. There is no recent overview about basic research studies in high homeopathic potencies that have been subjected to laboratory-internal, multicenter or independent repetition trials. METHODS We considered biochemical, immunological, botanical, cell biolog...
Randomized multicenter clinical trials for the study of certain conditions with low prevalence in the population, and rapid enrollment of a sufficient number of patients in a short time to evaluate a new technique, are major needs in medical research. A multicenter clinical trial allows the researchers who are interested in a particular problem to collect data from several different hospitals a...
Background and Purpose: To the best of our knowledge no multicenter studies have been published using standardized semi-quantitative evaluation of [123I]FP-CIT scan (DAT-SPECT). The aims of this study were: 1) to cross-compare semi-quantitative software-assisted evaluations of DAT-SPECTs performed in three centers with different equipments; 2) to assess the accuracy of semi-quantitative evaluat...
OBJECTIVE To describe the development, organization, and operation of several collaborative groups conducting investigator-initiated multicenter clinical research in adult critical care. DESIGN To review the process by which investigator-initiated critical care clinical research groups were created using examples from Europe, Australia, the United States, and Canada. Various models of group s...
BACKGROUND AND PURPOSE To investigate whether single-fraction radiotherapy is equal to multiple fractions in the treatment of painful metastases. PATIENTS AND METHODS The study planned to recruit 1000 patients with painful bone metastases from four Norwegian and six Swedish hospitals. Patients were randomized to single-fraction (8 Gy x 1) or multiple-fraction (3 Gy x 10) radiotherapy. The pri...
BACKGROUND A unique study identifier serves as a key for linking research data about a study subject without revealing protected health information in the identifier. While sufficient for single-site and limited-scale studies, the use of common unique study identifiers has several drawbacks for large multicenter studies, where thousands of research participants may be recruited from multiple si...
The effects of thermal acclimation were investigated in the common carp Cyprinus carpio L. Acclimation and acute temperature effects were tested during ontogeny from larval [9.5 mm total length (L)] to juvenile (69.0 mm L) stages and between 8 and 21 degrees C. The myosin heavy chain (MHC) composition, myofibrillar Mg(2+)-Ca(2+)-ATPase activity, and muscle strains showed significant thermal acc...
Recently, with the rapid development of big data, Internet of Things (IoT) brings more and more intelligent and convenient services to people’s daily lives. Mobile healthcare crowd sensing (MHCS), as a typical application of IoT, is becoming an effective approach to provide various medical and healthcare services to individual or organizations. However, MHCS still have to face to different secu...
Synaptic disruption is an early pathological sign of the neurodegeneration of Dementia of the Alzheimer's type (DAT). The changes in network synchronization are evident in patients with Mild Cognitive Impairment (MCI) at the group level, but there are very few Magnetoencephalography (MEG) studies regarding discrimination at the individual level. In an international multicenter study, we used ME...
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