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Men and women between 18 to 65 years and weighing 50 kilograms can donate blood safely.
Transgender people and gays can’t donate blood in India, according to existing law. Men can donate blood every three months, and women can donate every four months.
Obesity is the abnormal and excessive fat accumulation in the body. It is a chronic disease associated with other chronic diseases. The diagnosis of obesity is based on the Body Mass Index (BMI).Genetic factors ,environmental ,socioeconomical factore play vital roles.
Rods and cones are photoreceptors present in the -retina. Each rod and cone are divided into 1.Outer segment 2.Inner segment, and 3.Synaptic zone..
Hearing impairment is the inability to hear or the reduction in the hearing capacity of an average person .It may be conductive deafness or nerve deafness. The hearing capacity and defects are determined by some tests but more accurately by audiometry.
कई हिन्दू पर्व की तरह ही मकर संक्रांति को मनाने की तारीख में भी संसय हो जाता है | परन्तु हर साल की तरह जनता इस साल भी १ ४ जनवरी दिन को मनाने का मन बना रखा है | हालाँकि मिथला एवं कांशी पंचांग के अनुसार १५ जनवरी को मकर संक्रांति मनाने को कहा गया है |
Electrical events in internal ear, and
‘potential differences’ between different structures in the ear.
पहाड़ पर उचाई बढ़ने से तापमान में कमी होता है | एक हज़ार मीटर उचाई बढ़ने से ६ डिग्री सेल्सियस के लगभग तापमान में कमी होता है| पहाड़ो पर ऊचाई बढ़ने से वातावरण में ऑक्सीजन का दबाब (प्रेशर) कम हो जाता है |
गुरु गोविन्द सिंह जयंती , गुरु गोविन्द सिंहजीके जन्म दिवस के रूप में मनाया जाता है | गुरु गोविन्द सिंहजीसिखों के दसवें गुरु हैं | गुरु जी धर्मरक्षक ,कवि और एक महान योद्धा थे | वे एक आद्यात्मिक गुरु एवं दार्शानिक थे | गुरु नानक देव जे ने गुरु ग्रन्थ साहिब को पूर्ण किया | अपना पूरा जीवन जनता के लिय अर्पित कर दिया |
Oxidation is the addition of oxygen to a substrate or the removal of hydrogen or electrons from a substance..Reduction is the removal of oxygen from a substrate or adding hydrogen or an electron to a substrate.Oxidation and reduction go hand in hand; oxidation of one substance causes reduction of another. When one substance is oxidized, another substance gets reduced.
Free radicals exist independently with only one electron in one or more orbits. Such a lone electron is known as an unpaired electron. Usually, normal molecules have electrons in pairs for electrical normality.
