نتایج جستجو برای: indicators of quality of environment including air pollution

تعداد نتایج: 21282726  

Journal: :محیط شناسی 0
نسیم شریفیان پور کارشناس ارشد رشتۀ برنامه ریزی، مدیریت و آموزش محیط زیست، دانشکدۀ تحصیلات تکمیلی محیط زیست، دانشگاه تهران شهرزاد فریادی دانشیار گروه برنامه ریزی، مدیریت و آموزش محیط زیست، دانشکدۀ تحصیلات تکمیلی محیط زیست، دانشگاه تهران

introduction quality of urban life is known as one of the major elements of urban development. thus, evaluation urban environmental quality has much importance in the planning of urban development. cities are complex ecosystems affected by social, economic, environmental, and cultural factors. inefficient urban planning and management and lack of coherent environmental policies have led to many...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده زبانهای خارجی 1388

this study investigated the potential role of age in inductive and deductive grammar learning among iranian foreign language learners. the experimental population consisted of our randomly selected samples including two groups of children (with age of exposure to english within 8-13), and two groups of adults (with age of exposure to english within 11-13). thus, the comparison was between ch...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده اقتصادو علوم اجتماعی 1390

today, the route for economic development in most countries is the same as international open competitive economy. economic institutes well known that supportive public economy belonged on the past and they may compete in the global economy. it is obvious that if they have no competitive potency or not familiar with competition technique, they may be devastated. banking system aims to collect t...

Journal: :health in emergencies and disasters quarterly 0
majid kermani department of environmental health engineering, school of public health, iran university of medical sciences, tehran, iran. mohsen dowlati research center for environmental health technology, iran university of medical sciences, tehran, iran. ahmad jonidi ja`fari department of environmental health engineering, school of public health, iran university of medical sciences, tehran, iran. roshanak rezaei kalantari department of environmental health engineering, school of public health, iran university of medical sciences, tehran, iran. fazeleh sadat sakhaei department of nursing, faculty of nursing and midwifery, iran university of medical sciences, tehran, iran.

background: air pollution is one of the most important factors threatening the health of citizens. it increases the prevalence of cardiovascular and respiratory diseases as well as emergency admissions to hospitals in the polluted metropolitan cities. the present study was conducted using air quality (airq) model and aimed to investigate the effects of air pollution on the number of emergency c...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه کاشان - دانشکده علوم انسانی 1390

increasing academic and professional language demands around the world are not a deniable fact. the purpose of this study was to investigate english language needs and communication needs of the chemistry students at master and ph.d. levels at the iranian universities. in this research, different methods were used including un-structured interview, structured interview, and two sets of question...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند 1388

a significant problem in multicarrier communication systems is the necessity to reduce the value of papr (peak-to-average power ratio) of transmitting signal. in this thesis we study the effect of the system parameters such as coding and modulation types on papr and ultimate ber in a mc-cdma system. in this study we consider fading channel as well as the nonlinearity of transmitter’s amplifier ...

Background and aims: Air pollution is one of the health problems worldwide. Previous epidemiological studies have investigated the impacts of air pollution on respiratory and cardiovascular diseases. The aim of this study was to determine the associations between air pollution levels and different health indicators among world countries. Methods: This eco...

2013
Isabella Annesi-Maesano Dan Norback Jan Zielinski Alfred Bernard Cristina Gratziou Torben Sigsgaard Piersante Sestini Giovanni Viegi

BACKGROUND Indoor air pollution (IAP) constitutes a major global public health problem requiring increasing efforts in research and policymaking that may have special significance for elderly that are likely to spend most of their day indoors and appear to be particularly susceptible to adverse effects of chemical pollutants and bio-contaminants. Yet, evidence existing on the effects of IAP in ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده مدیریت و اقتصاد 1391

abstract nowadays, industries cannot play a crucial role in national and international competitions. the tourism industry is no exception. tourism industry development as the most important economic sector and income generation is one of the key challenges of economic development in the world. therefore, countries were successful that take advantage of the capabilities of tourism sector using ...

Environmental pollution consists of different types of pollutants in air, soil, and water. Due to the fact that plants can respond to environmental pollution, they can be used as bio-indicators for environmental monitoring. Air pollution in areas with oil and gas refineries nearby is an important problem. This study aims to survey the effects of gas refinery air pollutants on Conocarpus erectus...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید