نتایج جستجو برای: shuttle box
تعداد نتایج: 92942 فیلتر نتایج به سال:
This paper attempts to relate certain areas of similarity between Space Shuttle operation and Airline operation. The design controlled factors affecting airline maintenance cost are discussed. The thesis is that the Space Shuttle designer should consider airline experience in areas affecting maintenance cost in order to design the most cost effective Space Shuttle System.
Introduction: Falls are considered as the major health problem in ageing and the damages caused by falls (such as fractures, disability, heavy costs on government and family, and death) are the major concern of the World Health Organization. So, determination of risk factors and specific ways to prevent falls in the elderlies are of great importance. The aim of this study was to evaluate the ef...
Background & Aims: Previous research has shown that adult male rats’ castration reduces memory and learning. On the other hand, zinc chloride has a positive impact on memory and learning in some studies. Therefore, the aim of this study was to investigate effects of zinc chloride on passive avoidance memory of male rats, in gonadectomized peri-pubertaly. Materials & Methods: In this expe...
Introduction: Epilepsy is the most common disorder of the central nerves system. Patients suffering from epilepsy can experience a wide range of neuropsychological disorders such as impaired memory, disturbances in attention and information processing. Due to the effect of anticonvulsant carbamazepine and its effect on the memory and learning, the aim of this study was investigating the effect ...
Background: Exposure to electromagnetic radiation may impair memory. This study was conducted to evaluate the effect of radiofrequency wave (hereafter referred to as RFW) on passive avoidance learning and memory in healthy males and females. Materials and Methods: Ten adult male and ten female Sprague-Dawley rats (230±20 gr) were randomly divided into four groups including two control groups (o...
Background and Objective: Ischemia in the brain of rats causes intensive neural injuries leading to learning and memory disorders in addition to pain. Ellagic acid is a polyphenol compound with antioxidant properties which is found in fruits like pomegranate, blackberry and all types of mulberry. The objective of this study was to investigate the effect of 14-day prescription of different doses...
زمینه و هدف: صنعتی شدن، محیط ما را در معرض میدان های الکترومغناطیسیی قرار داده است که حفاظت در مقابل آنها مشکل به نظر می رسد. در این مطالعه تاثیر امواج الکترومغناطیسی با فرکانس پایین در دوران جنینی بر میزان یادگیری موش صحرایی در زمان بلوغ بررسی شد. روش بررسی: در این مطالعه تجربی، 48 سر موش صحرایی حامله نژاد اسپراگ داولی به 6 گروه 8 تایی شامل گروه کنترل، شاهد و گروه های با فرکانس 5 یا 25 هرتز ...
Introduction: For some cancer survivors chemotherapy treatment is associated with lasting motor and cognitive impairments, long after treatment cessation. Cisplatin as an anti-neoplastic agent is extremely toxic and can cause severe tissue damage. In the present study, we elucidated alteration in performance of hippocampus- and cerebellum-related behaviors following acute cisplatin treatmen...
Introduction:Cholesterol has different effects on memory, and diabetes caused adverse effect on cognition. Since there is not enough evidence regarding the effect of cholesterol on memory of diabetic animals, the effects of cholesterol and simvastatin on the passive avoidance memory of diabetic rat were studied. Methods:The study was done on 60 male Wistar rats (180 ± 20g). Diabetes was in...
Introduction: Nowadays, the use of energy substances has become a complex problem in sports, in which the role of anabolic-androgenic asteroids is undeniable. The aim of this study was to evaluate the effect of a period of resistance training on BDNF gene expression and poor memory in rats poisoned with anabolic steroid stanazolol. Methods: In this experimental study, 18 Sprague-Dovali rats wi...
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