نتایج جستجو برای: chemical and medical products using census method
تعداد نتایج: 17638625 فیلتر نتایج به سال:
The present article studies the interactive relationships between oil price volatility and industries stocks of basic metals, petroleum and chemical products by using Vector Auto Regressive (VAR) and Multivariate Generalized Autoregressive Conditional Heteroskedastisity (GARCH) models from March 2004 to March 2015 empirically . In this research, the VAR-GARCH model is proposed, which is develop...
The dialkyl- or alkyl/aryl esters of 1, 2-benzenedicarboxylic acid, which are known as Phthalates, are high-production volume synthetic chemicals and considered as environmental pollutants, due to high production and uses in community, plastics industry and common consuming products. Di-(2-ethylhexyl) phthalate (DEHP) is the most abundant phthalate in the environment. Human exposure with DEHP c...
in this thesis, we consider a mathematical model of cancer with completely unknown parameters. we study the stability of critical points which are biologically admissible. then we consider a control on the system and introduce situations at which solutions are attracted to critical points and so the cancer disease has auto healing. the lyapunov stability method is used for estimating the un...
a bstract background: non‑medical utilization of pre‑implantation genetic diagnosis (pgd), like sex selection, is increasing, therefore it is necessary to follow‑up the health and outcome of fertilization and newborn’s birth followed pgd. the aim of this study was to evaluate the outcome of fertilization after sex selection by pgd and the relation between the age of parents and the outcome of f...
Introduction: Active Learning Method (ALM) is a model in which students are active in the class. This aim of this study is to compare stability of information and satisfaction of students in classic method of lecture and active learning method. Methods: This descriptive cross-sectional study was performed on 48 medical students (29 females and 19 males) selected through census sampling method ...
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...
Objective: The main purpose of this research is review of principles, concepts, problems and solutions of soil ethic. Methods: In this research by descriptive method and Delphi technique was used for identifying soil ethical concepts, soil ethical principles, problems and difficulties of soil ethics in Iran and al around the world and suggestions for improvement of soil ethics in Iran. The popu...
The main purpose of the present study was to investigate effective factors of the market development of aquatics and products processed from them. The present research was applied research. Also, it was quantity research and in terms of the method of collecting data was a survey research. The Statistical population of this study consisted of experts of Agricultural Jihad Organization, experts o...
this research aims at answering the questions about translation problems and strategies applied by translators when translating cultural concepts. in order to address this issue, qualitative and quantitative study were conducted on two groups of subjects at imam reza international university of mashhad. these two groups were assigned as beginner and advanced translation students (10 students). ...
a bstract background: emotional intelligence has evolved lot of interest in a variety of fields. the aim of this study was to determine the e motional intelligence and its related factors among junior medical sciences students. materials and methods: the research design was a descriptive — analytic analysis. based on a census sampling method, the emotional intelligence of 322 junior medical...
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