A field experiment was carried out at the Research Center of Barkat-e-Jovein, Jovein agro-industries, Northeastern Iran, during 2008 to evaluate the effect of concentration and time of boron foliar application on root yield and quality of sugar beet (Beta vulgaris). Treatments consisted of 3 application times (30, 45 and 60 DAP) and 4 application rates (spraying with concentrations of 0, 4, 8 a...

BACKGROUND AND OBJECTIVES Heavy metals are considered as high risk biocides due to their harmful effects on human health, the environment and other living organisms. Bacterial strains showing resistance to heavy metals has been used for removing such toxic materials from the environment. In this study we isolated and characterized a heavy metals-resistance halophilic bacterial strains from Kal ...

in a faunistic survey of cecidomyiid gall midges (diptera: cecidomyiidae) in isfraeen, joghatai, and jovein regions (north khorasan province) in 2012, three species, clinodiplosis cilicrus kiefer 1889, asphondylia anatolica skuhrava1998 and lasioptera carophila low 1874 were collected and identified from galls on cirsium arvense (l.), astragalus sp. and dacus carota l. respectively. these three...

background and objectives: heavy metals are considered as high risk biocides due to their harmful effects on human health, the environment and other living organisms. bacterial strains showing resistance to heavy metals has been used for removing such toxic materials from the environment. in this study we isolated and characterized a heavy metals-resistance halophilic bacterial strains from kal...

in recent decades, the concept of cultural capital has created a lot of scientific studies over the world in the sociology of education. these studies mainly based on the two models: bourdieu's cultural reproduction and dimaggio's cultural mobility. these have achieved different results. this study aimed at evaluating the theoretical models in an empirical condition. middle and high school stud...

at present, faryomad is one of the valleys in mayami county from shahrood city that is situated at the eastern part of semnan province (iran). according to hamdolah mostofi, a historian, this city was the capital of jovein county at 8th hegira century (15th ad century). during ilkhanates dynasty, this city was highly credible for several reasons. name of this city has been implied in historical...

introduction energy and environmental issues are two common concerns of modern societies. fossil fuels consumption is believed to be the primary factor contributing to severe environmental problems, such as global warming, climate change and acid rain, which are a serious threat to the world’s ecosystems. in order to stabilize the earth’s climate and prevent further global warming, the earth re...