abstract during growing seasons of years 2006 & 2007, a faunistic survey on syrphidae family(diptera) in agroecosystems of neyshabor region, khorasan-e-razavi province was carried out. in this study, 3 collection methods: yellow water trap, malaise trap and sweeping net were applied. the results showed a large difference between different collection methods. specimens of 14 species collected by...

Background & Aim: Kazeroon, with an area of about 4060 km², is situated at 110 km in the west of Shiraz, Fars province, Iran. This area is important for plant biodiversity, due to the presence of some important habitats such as international Lake of Parishan in the southeast, woodlands of Quercus persica in the east and branches of Shahpoor river in the west of the region. Therefore, f...

Semiparametric regression is a fusion between parametric regression and nonparametric regression that integrates low-rank penalized splines, mixed model and hierarchical Bayesian methodology - thus allowing more streamlined handling of longitudinal and spatial correlation. We review progress in the field over the five-year period between 2003 and 2007. We find semiparametric regression to be a ...

background: ticks are hematophagous arthropod belonging to the class of arachnids. ticks are also one of the major vectors of pathogens to animal and human. this study was conducted to determine tick infestation rate of sheep in abdanan during 2007 – 2008. methods: sampling was performed seasonally in 19 villages during spring 2007 until winter 2008. a total of 1095 sheep were selected and test...

Groundwater drought denotes the condition and hazard during a prolonged meteorological drought when groundwater resources decline and become unavailable or inaccessible for human use. The aim of this study is to identify the influencial factors on groundwater drought in Hamadan- Bahar Watershed,Iran, to understand the forcing mechanisms. The Standardised Precipitation Index (SPI) has been used ...

Summertime photochemistry during CAREBeijing-2007: ROx budgets and O3 formation Z. Liu, Y. Wang, D. Gu, C. Zhao, L. G. Huey, R. Stickel, J. Liao, M. Shao, T. Zhu, L. Zeng, A. Amoroso, F. Costabile, C.-C. Chang, and S.-C. Liu School of Earth and Atmospheric Science, Georgia Institute of Technology, Atlanta, USA College of Environmental Sciences and Engineering, Peking University, Beijing, China ...

Hypospadias is an uncommon congenital defect of urinary tract in farm animals. This defect has been recorded rarely in calves, lambs and foals in the world. The aetiology of hypospadias is not well understood, it seems to be multifactorial and may be related to genetic, endocrinological, and environmental factors. During April to October 2007, twenty-four goat kids with sings of hypospadias wer...

abstract guilan is a famous province in growing rice in iran. recently, due to shortage of water, farmers' desire to use groundwater in order to grow rice in northern part of iran has been increasing rapidly. the fact that rice is sensitive to water quality, caused concern about rice cultivation sustainability in the area, especially in drought years. this study was done to investigate the spat...