aims: tehran’s uncontrolled expansion, which promoted housing, public utilities, industries and increase of vehicles caused the problem of air pollution. necessary information about air quality in different places and different times is the first step of combating the air pollution. the purpose of this study was to investigate the annual, monthly and hourly average of 5 criteria air pollutants ...

Our objective in this study was to evaluate a causal relationship between vestibular pathological findings and climatic variations during the year (summer, autumn, winter, and spring). The study was conducted in a Brazilian clinic located in a tropical climate and having well-defined warm and cold weather. For this retrospective study, our outpatients were the subjects, and the diagnosis was ma...

1. introduction dust storm is an important atmospheric phenomenon. it has important environment, health, economic and social activities due to penetration of suspended particles of dust to the atmosphere. measurements resulting from earth and satellite stations show the fact that particles of dust in storms, remain in the nature for a long time. they can get far away by wind, hundreds of kilome...

This study was conducted to determine the pregnancy rate in response two sexual synchronization protocols 70 healthy multiparous Fleckvieh dairy cows during cold and warm seasons. After pairing by actual parturition date [cold seasons (-38 0 ºC) (Nov - Feb) vs. (0 32 (Mar-Oct)], were randomly subjected either Co-Synch (CoS) or double PGF2α injection (dPG) on d 35 postpartum. Data Chi-Square (2...

abstract introduction: adequate intake of fruits and vegetables (at least five servings a day) is recommended as a nutritional behavior of great importance in prevention of chronic diseases. this study aimed to compare the intake of fruits and vegetables in adult males and females of isfahan and to assess its association with personal and demographic factors, as well as seasons. methods: this c...

The major lymphoid tissues in teleost fish are the kidneys, thymus, spleen and mucosa-associatedlymphoid tissue including the skin, gills and intestine. The head of kidney (pronephros) is an importanthaematopoietic organ and has morphological similarities with the bone marrow in higher vertebrates. In thisstudy, during 12 months from August 2002 to July 2003, 120 grass carp (10 fish/month) were...

Rural areas represent approximately 95% of the 14000 km(2) Alabama Black Belt, an area of widespread Vertisols dominated by clayey, smectitic, shrink-swell soils. These soils are unsuitable for conventional onsite wastewater treatment systems (OWTS) which are nevertheless widely used in this region. In order to provide an alternative wastewater dosing system, an experimental field moisture cont...