نتایج جستجو برای: high percentage of low
تعداد نتایج: 21385103 فیلتر نتایج به سال:
چکیده: سرطان مجاری ادراری-تناسلی یکی از مهمترین علل مرگ و میر در میان زنان سراسر دنیا می باشد. متیلاسیون در موقعیت کربن شماره 5 باز سیتوزین یکی از مهمترین انواع تنظیمات اپی ژنتیکی بوده که روی مولکول دو رشته ای dna اتفاق می افتد. متیلاسیون باز سیتوزین ارتباط تنگاتنگ با تنظیم بیان ژن دارد. وضعیت متیلاسیون dna را با تکنیک بیسولفیت سکوئنسینگ می توان مورد بررسی و مطالعه قرار داد. متیلاسیون dna سبب ...
abstract soil pollution with heavy metals like zinc causes increasing concerns about environment. according to distribution in soil, this study was conducted to compare zinc concentration between aggregate exteriors and interiors of some contaminated soils. aggregates were collected from 5 depths of 4 soil profiles with different textures and were separated mechanically into exterior and interi...
two groups of olive cultivars were characterized as showing low (tokhmkabki) and high (roghani) rooting percentage after application of iba treatment. semi-hard wood cuttings were dipped in h 2 2 o 2 (0-3.5% w/v) and iba (4000 mg.l -1 ) and also they were investigated in combination. h 2 o 2 alone did not stimulate rooting of olive cuttings and there were no significant differences between this...
just as motivation is important in sla research, demotivation constitutes an important factor, too. there are many studies done on demotivation and burnout of teachers. many of these studies have been conducted on one or two aspects of english instruction. consequently, there are few studies which have been done on more than two aspects of english teaching. the aim of this study is to find out ...
rapid germination is an important factor determining the final yield. the most important abiotic stress threatening lentils is drought and temperature. therefore, this study was performed with the aim of investigating effects various thermal treatments (5, 10, 15, 20, 25 and 30°c) and four levels of drought (0, -4, -8, -12 and -16 bar) on percentage and germination rate of lentil genotypes. a s...
Twinning induced plasticity (TWIP) steels with high manganese percentage (17-35%), are mostly used in automotive bodies. Their microstructure at room temperature is austenitic, and due to the low stacking fault energy, major deformation mechanism in them is twinning inside austenite grains which leads to enhanced mechanical strength in the steel. Due to the important effect of heat treatment pr...
investigating the feasibility of a proposed model for geometric design of deployable arch structures
deployable scissor type structures are composed of the so-called scissor-like elements (sles), which are connected to each other at an intermediate point through a pivotal connection and allow them to be folded into a compact bundle for storage or transport. several sles are connected to each other in order to form units with regular polygonal plan views. the sides and radii of the polygons are...
abstract in aggregate, active forms of reactive silica with mineral names are sometimes associated with sand and gravel in concrete mixture. alkali hydroxides originated from alkalis in the cement or other resources form an alkaline silica gel with this reactive silica which becomes swallowed and expanded during time causing damage to concrete. there have been growing researches on alkaline r...
Purpose: The aim of this study was to assess the effects some prominent factors like low bid amount, contract size and geographical locations projects on causing delayed completion in road bridge carried out by Road Division Offices under Department Roads (DoR) Nepal. Design/Methodology/Approach: Fifteen construction contracts from each seven provinces country were selected for study. completed...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید