نتایج جستجو برای: n level
تعداد نتایج: 1965004 فیلتر نتایج به سال:
Background and purpose: Iran is one of the top ten countries in the world with disaster. Hospitals have a major role in dealing with disaster-related injuries. The purpose of this study was to assess the level of preparedness in Mazandaran province hospitals in dealing with disasters in order to identify the deficiencies and comparing current conditions with national standards. Materials and m...
in order to study the effect of organic fertilizers application on increasing nitrogen efficiency and also quantitative and qualitative characteristics of sugar beet, a series of experiments were performed for two years (2008 and 2009) using three amino acid containing organic fertilizers at motahari research station of sugar beet seed institute (sbsi), karaj, iran. four rates of organic fertil...
the present research has been deducted from a provincial research project which aims at determining the relationship of variables of variables of occupational self-concept, intelligence beliefs and metacognitive with entrepreneurship among the students of payame noor university of kurdistan. the volume of the samples was 1080 students (576 female and 504 male students). the research methodology...
background: multiple sclerosis (ms) is an autoimmune, neuro- inflammatory disease of central nervous system affecting physical, emotional, and cognitive aspects of patients. association of vitamin d deficiency and ms has been shown in previous studies. the aim of this study was to evaluate serum vitamin d level in ms cases and their sex-matched healthy siblings (who are genetically near simi...
maternal, fetal and neonatal complications are correlated with hypertensive disorders during pregnancy. in this context, the maternal blood uric acid level is reported to be one of the prognostic factors in determining the prenatal outcome. based on the existing data, the present descriptive study was performed on two groups of women with severe preeclampsia; the first group (n=53) with a uri...
the main objective in sampling is to select a sample from a population in order to estimate some unknown population parameter, usually a total or a mean of some interesting variable. a simple way to take a sample of size n is to let all the possible samples have the same probability of being selected. this is called simple random sampling and then all units have the same probability of being ch...
This experiment was conducted to determine the effect of salinity and nitrogen on growth and yield of tomato and concentration and total uptake of some nutrients in different parts of plant in hydroponics culture. Nitrogen (N) was used at 0, 1.5 and 3% levels as NH4Cl and NH4H2PO4 and salinity consisted of 0, 30 and 60 mM as NaCl and CaCl2 (2:1 w/w). A completely randomized design experiment wa...
Effects of nutrient solutions on quantitative and qualitative indices of tulip (Tulipa gesneriana cv. Apricot parrot) were studied in a completely randomized design with 5 nutrient solutions, 4 experimental units and 3 replications. Plants were fed with five nutrient solutions (S1, S2, S3, S4 and S5) having NH4+-N/total N ratios of 0, 0.038, 0.074, 0.11 and 0.14, respectively. All nutrient solu...
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