نتایج جستجو برای: choice
تعداد نتایج: 194266 فیلتر نتایج به سال:
petrochemical industries are potentially capable of impacts on environment due to the essence of the activities and producing waste water, pollutant emissions and hazardous wastes. this case study has considered the environmental adverse impacts of petrochemical industries on existing habitats in mahshahr economic special zone with respect to the regional significant biological diversity and ec...
مشکل جستجوی محل دفن مناسب برای پسماندهای جامد شهری بعلت وجود عوامل و پارامترهای متعدد دخیل در این امر، همواره از جمله مسائل پیچیده، پرهزینه و وقت گیر به شمار می رود. سیستم اطلاعات جغرافیایی ابزاری موثری است که برای مدیریت وکاربرد داده های فضایی به زمان وهزینه کمتری نیازدارد و از آن می توان برای تعیین محل دفن پسماندها استفاده کرد. علاوه براین با استفاده آن می توان تعداد زیادتری سایت را تعیین محل...
background: sulfur compounds must be removed from petroleum because they contribute to environmental pollution. a strong alkaline solution such as caustic soda is used to remove these compounds. this spent caustic has high values for chemical oxygen demand (cod) concentration, ph and total sulfur. in this study, the regeneration and treatment methodology of sulfidic spent caustic was investigat...
this paper attempted to explore the expectation level of individuals to match themselves with the career offers and their awareness level to make the right decision in choosing right career in an economy of unemployment problems especially among the educated persons. this descriptive analytical research work is done on the basis of perceptions of students of different levels of education. the s...
background: inadequate attention to management and institutional reforms is an important barrier to achieving universal health coverage. skilled and motivated public health managers in adequate numbers are an important requirement to overcome this hurdle. however, what are the career choices of medical students? are they interested in community medicine and public health? to document the career...
“rational choice model” is one of the economics theories which developed into sociology, politics, and anthropology and was applied to understand and justify some phenomena. according to this hypothesis, the basis of decision making is improvements, enjoyment and suffering disposal. people always do all necessary calculations in each and every decision making and then adopt a rational decision...
to improve the quality of the mcqs, a supervising feedback strategy between the examination constructors and the educational development office of the school of traditional medicine was performed to evaluate the content validity and designation of the course items of the phytotherapy exam for phd students of traditional pharmacy. the efforts resulted in a well-constructed examination.
conclusions it seems that considering to a high rate of unemployment of university graduates and available restrictions of employment in the public and private organizations, applicants tend to enter the dental field because of the reliable and independent income and high social status which can be considered as the most important influential factors for choosing this field of study. results re...
economics has hit the mainstream in the last decade with popular books like freakonomics and the undercover economist reaching the masses. these authors have used their toolkits far beyond the narrow scope of money and finance and answered questions pertaining to anything from social policy to demographics to crime. their appeal has largely been their ability to explain that small underlying fo...
تحقیق حاضر به منظور پهنه بندی خطر و مدیریت رواناب سطحی در شهر گرگان به وسعت 3652.85هکتار با تکیه بر معیارهای هیدرولیکی و آسیب پذیری و اثرات محیطی با استفاده از تکنییک های تصمیم گیری چند معیاره وسیستم اطلاعات جغرافیاییصورت گرفت. برای اجرای برنامه ابتدا لایه های برداری ورودی شامل لایه های کاربری اراضی شهری، لایه کانالها و مسیل های شهری، لایه رقومی ارتفاعی، لایه ژئولوژی و لایه سطح آب زیرزمینی در م...
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