The presence and folding pattern of chromatin in eukaryotic cells remain elusive and controversial. In this study, we prepared ultra-thin sections of Hela cells with three different fixation and sectioning methods, i.e., chemical fixation, high pressure freezing with freeze substitution, and cryo-ultramicrotomy with SEM-FIB (focused ion beam), and analyzed in vivo architecture of chromatin fibe...

Abstract The research of the current study is primarily focused on evaluating reservoir performance by utilizing waterflood technique, based a case at Lanea oil field located in Chad; various mechanisms along with approaches were used considering best suitable pattern for waterflooding. All simulation work was compared against base case, where there no involvement water injection. Moreover, sig...

in order to identify the pressure patterns causing the cold weather over the northwestern iran, daily lowest temperatures of six stations of the study area during january- march months of the 1986-2003 period were obtained from meteorological organization of islamic republic of iran (irimo) in the quality controlled format. according to the defined threshold, the very cold days were extracted a...

Background and Objectives: Dietary Approaches to Stop Hypertension (DASH) eating pattern, a diet rich in fruits, vegetables, whole grains and low-fat dairy with a reduced content of sodium, saturated fat, and total fat is introduced as an appropriate diet for hypertension. This eating pattern was basically designed to normalize blood pressure in patients with hypertension, and a large body of d...

Numerical study is presented in this work for turbulent cavitating flow pattern simulation on a hydrofoil, using state equation of cavitation model along with combined turbulence mixed fluid based commercial software FLUENT 6.0. This solver finite volume method. Cavitating yield irregular behavior the variation values ( . focused pressure variation, vapor fraction, lift and drag forces foil sec...

â â â  in this research, temporal and spatial behaviors of azores high pressure was studied at the level of 700 hpa. this study has been done using daily data of geopotential height at 12 gmt in ncep/ncar database with spatial resolution of 2.5*2.5 degree in a 55 years period including 20089 days from january, 1st, 1951(dey, 11th, 1329) to december, 31st,2005(dey, 10th,1384). at first, the mean...

on the basis cross sectional health and morbidity survey was conducted in 1973, an attempt was made to measure the prevalence of high blood pressure among qashqai tribe. our study showed that hypertension is by no means a rare condition among nomads and it tends to be a little higher in women than in men age gtoup 35 years and o ver , our figures showed that the pattern of increase of prevalenc...