نتایج جستجو برای: d and h
تعداد نتایج: 16952426 فیلتر نتایج به سال:
Growth in animals is controlled by genetic, environmental, and nutritional factors, including external factors (temperature, pressure, salinity, and light) in the evolution of cold-blooded animals. In this study, the effects of three different light treatments on the growth and survival rates of guppy larvae (Poecilia reticulata) were investigated. The larvae of this species with an average ini...
the present study reports the changes in the phytoplankton community structure in taklong island national marine reserve (tinmar), guimaras island, philippines. quantification of pah yielded undetectable results, whereas, primary productivity, phytoplankton density, and diversity values were higher as compared to samples before the oil spill and samples from the reference site. sixty-nine gener...
فرض کنیم g یک گروه متناهی باشد و نیز فرض کنیم p_1,p_2,..,p_k مام مقسوم علیه های اول مرتبه g باشند کهp_1<p_2<..<p_k.در این صورت گراف اول وابسته به گروه g عبارت است از یک گراف ساده که مجموعه راسهای آن عبارت است از {p_1,...,p_k} و دو راس متمایز p_i و p_j توسط یک یال به هم وصل می باشند اگر و تنها اگر g شامل عنصری از مرتبه p_ip_j باشد. درجه راس دلخواه p_i در این گراف را با( deg(p_i نشان می دهیم و ...
فرض کنیم (r, m) یک حلقه ی موضعی، نوتری و گرنشتاین n -بعدی باشد. برای هر ایده آل سره ی i از r با grade(i)=c ، ثابت عددی au _{i, j}(i) را به عنوان بعد سوکل h _{fm}^{i}(h _i^{n-j}(r)) تعریف می کنیم. درحالتی که r موضعی منظم بوده و شامل یک میدان باشد، این اعداد همان اعداد لیوبزنیک lambda _{i, j} (r /i) می باشند. اگر d = dim (r /i) ، آن گاه از نماد au _{d,...
The accelerated growth of technology has allowed the development more complex electromechanical structures and specific to industry demand. Robots have emerged meet this main objective work is present a study direct kinematics with purpose analyzing behavior position orientation industrial robotic manipulator in cartesian space relation coordinate system. methodology used exploratory scientific...
چکیده زنبور های زیر خانواده aphidiinae (hym., braconidae) پارازیتویید اجباری داخلی و انفرادی شته ها بوده و اهمیت زیادی در کنترل این گروه از آفات دارند. در این تحقیق به مطالعه تنوع گونه ای و نیز روابط میزبانی و همبستگی آن با تغییر ارتفاع پرداخته شد. ارتفاعات مناطق غربی استان اصفهان به عنوان شاخصی از دامنه زاگرس جنوبی به عنوان منطقه نمونه برداری انتخاب شد. نمونه برداری در طول سال های 90-89 از رو...
Primordial evaluations of the deuterium abundance should provide one of the best tests of Big Bang nucleosynthesis models. Space as well as ground based observations seem however to result in different values. This asks for more observations in different astrophysical sites in order to link present day interstellar medium D/H evaluations to primordial ones. New investigations, made with FUSE (t...
background: it is not yet known which types of toll-like receptors (tlrs) are most effective in helicobacter pylori (h. pylori) recognition. it is also not known which gastric zones have the most prominent roles in tlr-mediated bacterial recognition. the aim of this work was to analyze the expression of tlr2 and tlr4 in biopsy specimens from h. pylori-infected patients. methods: thirty-eight pa...
results liver function tests in the healthy blood donors were within the normal range. the incidence rates of senv-d and senv-h in the 184 total blood donors were 10 (5.4%) (95% confidence interval (ci): 2.1% - 9.0%) and 32 (17.4%) cases (95% ci: 12.0% - 23.0%), respectively. senv-h/d co-infection occurred in 2 (1.1%) patients. the sera of 8/184 (4.3%) were positive for anti-hbc antibody but ne...
OBJECTIVE To assess the sensitivity and specificity of the serum carboxypeptidase B activation peptide in diagnosing and determining the severity of acute pancreatitis. PATIENTS Twenty consecutive patients with acute pancreatitis were studied on admission to the Emergency Room: 11 patients had mild pancreatitis, and 9 patients, severe pancreatitis. Twenty consecutive patients with non-pancrea...
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