Hexachlorocyclohexane or the abbreviation HCH is identified as a monocyclic chlorinated hydrocarbon. HCH was discovered in 1825by Faraday, who just had discovered benzene. By reacting benzene with chlorine in bright sunlight, formation of HCH was observed. Neither Faraday nor the Dutch chemist Van der Linden, who in 1912 isolated the pure -isomer from a HCH mixture, realized the insecticidal p...

Purpose: Comparing the effects of manipulating senses on relative phase transition bimanual coordination pattern of active and inactive women with Multiple Sclerosis (MS). Methods: The methodology of this study was repeated-measures design. Study participants comprised 10 active women and 10 inactive women with multiple sclerosis who voluntarily participated in this experiment. The participant...

Ammonia is an important industrial chemical and also being discussed as a potential energy carrier. Electrifying ammonia synthesis could help to decarbonize the industry, Haber–Bosch process contributes markedly global carbon emissions. A lithium-mediated pathway among most promising ambient-condition electrochemical methods. However, role of metallic lithium its passivation layer, solid electr...

knee osteoarthritis can have negative effects on the physical and mental conditions, social and family relations, general health and positive feelings of elders. for example, severe limitation of motion and increased depression, which are results of this disease, can have negative impacts on elders. the purpose of this study was to compare the levels of depression in healthy active and inactive...

background and objectives: neisseria meningitidis is transmitted from person-to-person. thus, close contact with a healthy carrier can facilitate the spread of the bacteria and lead to life-threatening meningococcal disease. the aim of this study was to identify oropharyngeal carriers of n. meningitidis in volunteers preparing for military service before vaccination. materials and methods: in a...

background: it is estimated that about 370 million people are chronic carriers of hbv worldwide. apparently 3% of iranian populations are chronic carriers of this virus. we aimed to evaluate the viral dna in biological fluids of chronic hepatitis patients compared to a control group. methods: the current case-control study was designed to evaluate the viral dna in biological fluids of 70 chroni...

Knee osteoarthritis can have negative effects on the physical and mental conditions, social and family relations, general health and positive feelings of elders. For example, severe limitation of motion and increased depression, which are results of this disease, can have negative impacts on elders. The purpose of this study was to compare the levels of depression in healthy active and inactive...

aging is a crucial period in human life and it is a social necessity to pay attention to the issues and needs of this stage of life. the aim of the current study was to study the effect of body mass index (bmi) on reaction time and response time of the active and inactive elderly. the research method was causal-comparative and its statistical population consisted of the elderly from mahabad cit...