ôbjective: previous studies have suggested that anxiety disorders are more prevalent among women than men. the purpose of this study was to compare the metacognitive perspective of generalized ânxiety disorder (gâd) in females with males. methods: â cross sectional study was conducted on the high school girls and boys who have been affected by gâd. the sample consisted of 100 high school studen...

The effect of a piped water supply on human water contact in a Schistosoma haematobium-endemic area in Coast Province, Kenya was studied. After the construction of five community standpipes and one shower unit, there was a 35.1% reduction in the number of people observed using river water, a 44.1% reduction in the frequency of contact with river water, and a 25.4% reduction in the amount of con...

investigation of the cultivated tomato plant as a plant ideal system along with the drought resistant wild species can be useful to a better understanding of the mechanisms of drought resistance and improvement of tomato plants. to investigate the effect of drought stress on leaf relative water content (rwc), electrolyte leakage and photosynthetic parameters in four species of tomato (a cultiva...

Rivers are important as the main source of supply for drinking, agriculture and industry.However, drinking water quality in terms of qualitative parameters, is the most important variable. Studias and predicting  changes in quality parameters along a river, are one of the goals of water resources planners and managers. In this regard, many water quality models in order to maintain better water ...

Mycorrhizal fungi greatly enhanced the ability of plants to take up phosphorus and other nutrients those are relatively immobile and exist in low concentration in the soil solution. Fungi can be important in the uptake of other nutrients by the host plant. Zinc nutrition is most commonly reported as being influenced by the association, although uptake of copper (Cu) , iron, N, K, Ca and Mg has ...

this study aimed to investigate the concentrations of two heavy metals, lead and cadmium, in the water of zayandehroud river which is surrounded by zarinshahr rice farms. water was sampled from a depth of 30 cm during june, july and august 2015, i.e. during the process of planting, growing and after harvesting, in three stations. water was collected from three points; 20m before the farms, besi...