background and pupose: after two decades of expansion of universities of medical sciences and increasing the number of medical sciences students as one of the most attainable solutions for the problem of substandard status of iranian community health, recently, quality-based policies in medical education have taken priority over most of the national health plans. we conducted this study to dete...

In this paper, the geometric, optimization­based, and Lavallée and Hidiroglou (LH) approaches to stratification are compared. The geometric stratification method is an approximation, whereas the other two approaches, which employ numerical methods to perform stratification, may be seen as optimal stratification methods. The algorithm of the geometric stratification i...

Résumé La NAFLD ( Non Alcoholic Fatty Liver Disease ) est la manifestation hépatique d’un trouble métabolique multisystémique. Elle principale cause de maladie au niveau mondial, avec une prévalence croissante. Bien qu’il s’agisse principalement d’une silencieuse à évolution lente, certains patients présentent un risque élevé progression et d’issues plus graves telles que cirrhose, le carcinome...

The number of isoperoxidases and the intensity of certain isozymes increased with increasing periods of stratification of pear (Pyrus communis cv. Bartlett) embryos. The presence of GA(3) or kinetin during stratification enhanced the activity of certain isoperoxidases, and these enhancements were blocked in the presence of ABA which by itself had an inhibitory effect. Enhancement in isoperoxida...

A new automatic stratification method utilizing United States Department of Agriculture (USDA) National Agricultural Statistics Service (NASS) geospatial Cropland Data Layers was recently implemented in NASS operations. Recent research findings indicated that using the automated stratification method significantly improved area sampling frame stratification accuracies in intensively cropped are...

one of the most dazzling events in the atmosphere is lightning. during updrafts in the life cycle of cumulus clouds, collision of graupels and ice crystals in the presence of liquid water results in vertical separation of electrical charges and lightning. there are four types of lightening depending on the location of discharge. the first type is cloud-to-ground lightning or fork lightning that...

background: safe exclusion and risk stratification are currently recommended for the initial management of patients with acute pulmonary embolism (ape). the aim of this study was to assess the safe exclusion and risk stratification value of d-dimer (dd) for ape when tested at the beginning of admission. materials and methods: all consecutive chinese ape patients and controls were recruited from...

gliomas account for almost 80% of primary malignant brain tumors in adults. magnetic resonance imaging (mri) is still the gold standard for diagnosis of brain tumors and brain 99mtc-tetrofosmin single photon emission computed tomography (99mtc-tetrofosmin-spect) has been established as a useful tool for their evaluation. fluorine-18–2-fluoro-2-deoxy-d-glucose positron emission tomography/comput...