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jsfM;ksa  rjax ds lapj.k dks izHkkfor djus esa jsfM;ks viorZdrk ,d egRoiw.kZ dkjd dk dk;Z djrh gSA jsfM;ks viorZdrk] ok;qeaMy dh HkkSfrd voLFkkvksa tSls & rkieku] nkc vkSj vknzZrk ij fuHkZj djrh gSA jsMkj vR;Ur NksVh vk—fr ds viorZukad fHkUurkvksa tks jsMkj ds rjax nS/;Z dh vk/kh gksrh gS] ds izfr laosnh gksrs gSA i'p izdh.kZu 'kfDr viorZukad fu;rkad Cn2 dh vk—fr ds ifjek.k ij fuHkZj djrh gSA vr% ekSle jsMkj] fo’k"k :i  foaM izksQkbyj jsMkj ds fM+tkbu ds fy, fdlh LFkku ds Cn2 ds eku mi;ksxh gksrs gSA bl 'kks/k i= esa fnYyh ds Åij ds mijhru ok;qeaMy esa ok;qeaMyh; viorZukad fu;rkad Cn2 dh :ijs[kk nSfud ,oa _rqvksa ds vk/kkj ij rS;kj djus dh dksf’k’k dh xbZ gSA The radio refractivity is an important factor which effects radio wave propagation. Radio refractivity depends upon the physical states of atmosphere, i.e., its temperature, pressure and humidity. Radars are sensitive to refractive index irregularities on scale size equal to half wavelength of Radar. Backscattered power is dependent on the magnitude of refractive index structure constant Cn2.  Hence Cn2values of a place are useful for designing weather radar specially wind profiler radars. This paper is an attempt to map the profile of refractive index structure constant Cn2 of atmosphere in the upper atmosphere, over Delhi on diurnal and seasonal basis.

Walking is the mostly preferred form of exercise for all ages. Brisk walking [5-6 kilometer per hour] for 30-60 minutes is an ideal one for a healthy person. A lot of people in urban Bangladesh do morning walk for cheering good health. This descriptive study was carried out among 208 morning walkers in Rajshahi Metropolitan area, selected purposively and was interviewed with a pre-tested close ended questionnaire for appraisal of their knowledge and practice of morning walking. The mean age of the respondents was 45.78 ± 13.01 years and majority of them (54.33%) had health problems including diabetes (35.58%). Almost all (92.30%) preferred walking in the morning. Majority respondents (64.42%) walked every day in the week and 64.90% spent one hour daily for it. Among the respondents, majority (60.58 %) had knowledge of one hour daily walking and 55.77% knew that daily walking coverage for two kilometers was the ideal. Only 3.63% of the morning walkers were found walked briskly and were scientifically correct in their practice. Most of the respondents with health problems had consulted with physicians but did not get proper guideline for walking. Physicians should advice their patients with detail about walking considering the age and the disease if they think it necessary. Health education program for acceptance of walking with correct information should be initiated and broadcast in mass media for general people.DOI: http://dx.doi.org/10.3329/kyamcj.v2i2.13264KYAMC Journal Vol.2(2) January 2012, 193-197

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