نتایج جستجو برای: br1
تعداد نتایج: 198 فیلتر نتایج به سال:
Given a complete hyperbolic 3-manifold one often wants to compare the original metric to a complete hyperbolic metric on the complement of some simple closed geodesic in the manifold. In some cases this can be done by interpolating between the two metrics using hyperbolic cone-manifolds. We refer to such a deformation as drilling and results which compare the geometry of the original manifold t...
Let X = G/H be a homogeneous variety for a connected complex reductive group G and let B be a Borel subgroup of G. In many situations, it is necessary to study the B-orbits in X. An equivalent setting of this problem is to analyze H-orbits in the flag variety G/B. The probably best known example is the Bruhat decomposition of G/B where one takes H = B. Another well-studied situation is the case...
Plant growth-promoting rhizobacteria (PGPR) may provide a biological alternative to fix atmospheric N2 and delay N remobilisation in maize plant to increase crop yield, based on an understanding that plant-N remobilisation is directly correlated to its plant senescence. Thus, four PGPR strains were selected from a series of bacterial strains isolated from maize roots at two locations in Malaysi...
چکیده: در این تحقیق تاثیر پنج دمای ثابت (15، 20، 25، 30 و 35 درجه سلسیوس) و شش رقم چغندرقند (br1، زرقان، 7233، pp22، pp36 و پلی راو) روی ویژگی های دموگرافی شته سیاه باقلا در شرایط اتاقک رشد در دمای 1 ± 25 درجه سلسیوس، رطوبت نسبی 10 ± 60 درصد و دوره نوری 16 ساعت روشنایی و 8 ساعت تاریکی مورد ارزیابی قرار گرفت. این آزمایشات در آزمایشگاه گروه گیاهپزشکی دانشکده کشاورزی دانشگاه محقق اردبیلی انجام شد....
به منظور بررسی اثر تیمارهای پرایمینگ بر جوانه زنی و رشد گیاهچه شش ژنوتیپ چغندرقند و همچنین تعیین بهترین تیمار پرایمینگ و ژنوتیپ دو آزمایش در سال زراعی 1389 انجام شد. آزمایش اول و دوم به ترتیب در آزمایشگاه بیوتکنولوژی تحت شرایط کنترل شده و آزمایشگاه تکنولوژی بذر تحت شرایط آزاد (محیط آزمایشگاه) در دانشکده کشاورزی دانشگاه شهید چمران اهواز به صورت بلوک های خرد شده در قالب طرح بلوک های کامل تصادفی د...
The chromatin structure of differently expressed genes is generally probed by nuclease digestion of isolated nuclei (1). It is then vital that the chromatin adequately represents the transcriptional and structural status of the intact living cell. We have encountered difficulties in reproducibly detecting nuclease hypersensitivity in the chromatin of the promoter region of the actively transcri...
Approximately 10% of the world population suffers from food allergies, which usually develop allergic sensitization early in infancy to milk, egg, and peanut. In fact, some individuals with milk egg allergies seem outgrow their symptoms a few years, whereas peanut-allergic do not peanut allergy. Knowledge on immune tolerance mechanisms allergens is essential for establishing precise prevention ...
BACKGROUND The number of competitive master athletes (MA, over 40 years) has been rising. Since the incidence of coronary artery disease (CAD) is increasing in this population, cardiovascular pre-participation screening, including a maximum exercise test, is recommended. In this context the addition of contrast to echo could be useful because wall thickening and motion are better markers of myo...
Sir, A 70-year-old female had developed chronic kidney disease (CKD) stage 5 due to autosomal dominant polycystic kidney disease (ADPKD), for which she performed peritoneal dialysis for 1 year until her kidney transplantation. On clinical evaluation, the patient mentioned a weight loss of 2 kg in the last 6 months but with normal appetite and without asthenia. Medical examination revealed the a...
ion of two chlorides from 2 or 4 may provide simple, monocoordinate, low-valent Sn or Pb dications if the strongly Lewis basic nature of the metal center can be harnessed to partly relieve the electron deciency of such a dication. The greater extent of Pt–M (M1⁄4 Sn, Pb) s donation in 7a and 8a over that in 4 and 2might provide enough electronic stabilization to attenuate the reactivity of the...
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