نتایج جستجو برای: reference standards
تعداد نتایج: 370182 فیلتر نتایج به سال:
introduction: information management system is a formal approach to collect the necessary information in its due time for managers to facilitate decision-making, planning and management. medical records system which is closely associated with pieces of information and their true value can play an important role in health care organizations. the main objective of this study is to compare informa...
introduction: applying quality management systems can be useful for the development of health care organizations standards, services, quality improvement and costs reduction. the purpose of this study is to investigate the possibility of applying quality management system iso9001/2000 in hospitals affiliated with medical sciences universities from managers' viewpoints. methods and materials: it...
The inability to produce two perfect copies of an unknown state is inherently linked with the inability to produce maximal entanglement between multiple spins. Despite this, there is no quantitative link between how much entanglement can be generated between spins, and how well an unknown state can be cloned. This situation is remedied by giving a set of sufficient conditions such that a Comple...
Verification bias arises in diagnostic test evaluation studies when the results from a first test are verified by a reference test only in a non-representative subsample of the original study subjects. This occurs, for example, when inclusion probabilities for the subsample depend on first-stage results and/or on a covariate related to disease status. Reference standard bias arises when the ref...
AIMS To use BioBall cultures as a precise reference standard to evaluate methods for enumeration of Escherichia coli and other coliform bacteria in water samples. METHODS AND RESULTS Eight methods were evaluated including membrane filtration, standard plate count (pour and spread plate methods), defined substrate technology methods (Colilert and Colisure), the most probable number method and ...
For several decades, immunohistochemistry (IHC), more specifically diagnostic IHC (dIHC), has been considered an art rather than a laboratory test. There was no clarity about what test performance characteristics are relevant to dIHC, test performance characteristics were not fully defined for dIHC and partly as a consequence of that, there were no standardised controls or reference standards. ...
BACKGROUND AND PURPOSE Therapeutic strategies for patients with MS partly rely on contrast-enhanced MR imaging. Our aim was to assess the diagnostic performance of 3D turbo spin-echo MR imaging with variable refocusing flip angles at 3T for the detection of enhanced inflammatory lesions in patients with multiple sclerosis. MATERIALS AND METHODS Fifty-six patients with MS were prospectively in...
Often microarray studies require a reference to indirectly compare the samples under observation. References based on pooled RNA from different cell lines have already been described (here referred to as RNA-R), but they usually do not exhaustively represent the set of genes printed on a chip, thus requiring many adjustments during the analyses. A reference could also be generated in vitro tran...
OBJECTIVE Nutrient Reference Values (NRV) are evidence-based benchmarks for assessing the dietary adequacy of individuals and population groups as well as informing public health nutrition policies and programmes. The present paper presents the findings of an analysis of the views of submitters to a draft document associated with the development of the 2006 NRV for Australia and New Zealand. Th...
Use of a commercially available wearable device to monitor jump load with elite volleyball players has become common practice. The purpose of this study was to evaluate the validity and reliability of this device, the Vert, to count jumps and measure jump height with professional volleyball players. Jump count accuracy was determined by comparing jumps recorded by the device to jumps observed t...
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