نتایج جستجو برای: 092 with no unit
تعداد نتایج: 10447820 فیلتر نتایج به سال:
soil compaction is an important aspect of agriculture and different methods are available to measure this parameter. one method is called the cone index; measuring the force required per unit area for penetration of a standard steel cone into the ground. cone penetrometers are used for cone index measurement. in this study, a tractor mounted, hydraulically-operated penetrometer was designed, bu...
Acral melanoma is commonly diagnosed in people of color and has worse prognosis than cutaneous melanoma, even when controlling for tumor stage. Here, we seek to assess differences mutational profiles acral melanomas, which could potentially impact treatment outcomes. Mutational 1273 patients (118 1155 cutaneous) from the American Association Cancer Research Project Genomics Evidence Neoplasia I...
BACKGROUND pediatric hematology/oncology patients are faced with an increased risk of nosocomial infections (NIs) that vary in different populations and different institutions with considerable morbidity and mortality. This study was undertaken to assess the frequency and patterns of NIs in 1564 pediatric patients and to determine the prevalence of causative organisms and their antimicrobial se...
Background: Up to now there is no study evaluating correlation between serum magnesium and morbidity or mortality in patients admitted in intensive care unit. The aim of this study is to determine the prevalence of hypomagnesemia in critically ill patients and to evaluate its association with organ dysfunction, hospitalization period and mortality. Methods: We conducted a retrospective trial ...
abstract this study was carried out to compare disinfecting effects of nanosilver with other feed disinfectants on layer hen performance, immune system, gastrointestinal microflora and intestinal morphology. total of 90 layers (lsl) were divided into five groups consisting: 1-control, 2- formalin (200 ppm), 3- formaycin (200 ppm), 4- nanosilver in drinking water (7.5 ppm) and 5-nanosilver in f...
the purpose of the present study was to investigate the effect of task-based instruction of vocabulary on the receptive and oral productive acquisition of english vocabulary and compare the results with those obtained from the traditional method. the method and procedure applied in this study was as follows: after the implementation of opt, a group of sixty female students were chosen. the stu...
this research is a study on indicators of listening instruction in iranian english as a foreign language (efl) curriculum at guidance school and high school educational levels. this thesis aims at determining: a) the indicators of listening instruction at guidance school and high school efl curriculum. b) the indicators of listening instruction in irans guidance school and high school efl curri...
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