Introduction: This study aimed to investigate the effects of cooling vests on heat strain and reaction time while wearing protective clothing against chemical, biological, and radioactive contamination. Materials and Methods: Twelve male students with the mean age of 25 ± 2 years and mean body mass index (BMI) of 23.0 ± 1.5 kg/m2 were recruited in this experiment. Each student was asked to r...

   Background & Aims: Malaria parasites attach to molecules on midgut surface of Anopheles mosquitoes to continue their life cycle. Here we try to evaluate the effect of anti-Anopheles midgut antibodies on coating these molecules and consequently blocking the transmission cycle of Plasmodium berghei inside their vectors. Materials & Methods: Balb/c mice were immunized with homogenized and degly...

Azospirillum brasilense is one of the N2-fixing microorganisms which, in symbiosis with the roots of cereals and other graminae, enhances growth and development of plants. In this research, wheat seeds (Triticum aestivum) of three cultivars (Ghods, Roshan and Omid) were inoculated with Azospirillum strains (Sp7 and Dol). Inoculation increased growth parameters and yield of wheat cultivars, the ...

The plastic behavior of materials depends on their strain rate sensitivity. The main objective of this paper is the analysis of the effect of strain rate sensitivity on plastic behavior of cylindrical shells under internal pressure loading and hence a large number empirical tests have been conducted on aluminum cylindrical shells. We have also manufactured and used a hydrostatic test machine to...

  Background & Objectives : Exposure to high temperatures is common among workers in warm environments leading to some undesirable effects . The aim of this study was to examine physiological responses to heat stress to determine the optimal index for direct measurement of physiological strain in workers of hot environments .   Methods: In this study, 40 workers of melting and cast...

به منظور بررسی تأثیر باکتری های ازتوباکتر و سودوموناس و سطوح مختلف کود شیمیایی بر کمّیت و کیفیت علوفه شلغم علوفه ای(brassica rapa l.) آزمایشی در سال زراعی 91-1390 در مزرعه ی پژوهشی موسسه ی تحقیقات برنج کشور (رشت) در قالب طرح بلوک های کامل تصادفی با 14 تیمار و سه تکرار اجرا شد. تیمارهای آزمایشی شامل شاهد (بدون کود و بدون تلقیح)، کود کامل شیمیایی و بدون تلقیح، تلقیح با azotobacter chroococcum stra...