نتایج جستجو برای: sahifat al
تعداد نتایج: 443031 فیلتر نتایج به سال:
Bovine mastitis is very common in cows of both developed and developing countries. The prevalence of clinical and subclinical mastitis (SCM) varies from region to region. Hence, the present study was carried out to determine the prevalence of mastitis using three diagnostic tests by considering different risk factors like age, lactation, breed, season, quarters, and herd. The results showed tha...
BACKGROUND Lejeunea is a largely epiphytic, subcosmopolitan liverwort genus with a complex taxonomic history. Species circumscriptions and their relationships are subject to controversy; biogeographic history and diversification through time are largely unknown. METHODOLOGY AND RESULTS We employed sequences of two chloroplast regions (trnL-trnF, rbcL) and the nuclear ribosomal ITS region of 3...
Monitoring mortality trends in low-resource settings Christina Pagel, Audrey Prost, Nirmala Nair, Prasanta Tripathy, Anthony Costello & Martin Utley a Clinical Operational Research Unit, University College London, Gower Street, London, WC1E 6BT, England. b Centre for International Health and Development, University College London, London, England. c Ekjut, Chakradharpur, Jharkhand, India. Corre...
A time-domain numerical code (the so-called Texas code) that solves the Khokhlov-Zabolotskaya-Kuznetsov (KZK) equation has been extended from an axis-symmetric coordinate system to a three-dimensional (3D) Cartesian coordinate system. The code accounts for diffraction (in the parabolic approximation), nonlinearity and absorption and dispersion associated with thermoviscous and relaxation proces...
پژوهش حاضر به منظور بررسی فوم پذیری آلیاژهای zn-al با درصد های متداول al و سپس ارزیابی خواص فشاری شبه استاتیک فوم های تولیدی تعریف و اجرا گردید. بدین منظور، فوم های روی خالص و آلیاژهای zn-al با نام های متداول: آلیاژ شماره 5 (al%4)، za12، zn-22al و za27 به روش فوم سازی ذوبی و با استفاده از حباب زای zrh2 تولید شدند. از روش های افزودن کلسیم و همزدن مذاب و نیز تلفیق این دو روش برای ویسکوزسازی مذاب ...
plexity. This conclusion is conceptually similar to our own, and it little alters the broader impacts of our published findings; still, the general relevance of the issues warrants a response. In their reanalysis, Gutierrez-Ibanez et al. [2016] perform a ‘residual analysis’, which regresses body weight on brain weight with phylogenetic generalized least squares (PGLS) to obtain size-corrected r...
The paper is dedicated to the memory of prominent theoretical physicist and mathematician Dr. Vadim Kuznetsov who worked, in particular, in the fields of the nonlinear dynamics, separation of variables, integrability theory, special functions. It includes his short research biography, an account of the start of his research career and the list of publications.
OBJECTIVES To describe the morphological features of atherosclerosis in the aortas of autopsied patients (ranging from young adults to the elderly), thus providing new tools for a more sensitive morphological evaluation. METHOD We collected 141 aorta samples. We assessed the macroscopic degree of atherosclerosis, thickness of the intima and media, lipid and collagen depositions in the intima,...
General interpolating expressions, valid for nearand arbitrary overcritical sizes of clusters, are proposed for the nucleation fluxes and distributions. Results are expressed in terms of the deterministic growth rates, and are characterized by a non-Gaussian dependence on the size of nuclei. In a sense, the proposed approximations combine the positive aspects of the parabolic model by Trinkaus ...
One of the most critical problems that hospitality firms face in selecting employees is that the use of cognitive ability tests and other valid predictors of job performance lead to subgroup differences between majority and minority group members. The recent Ricci v. DeStefano U.S. Supreme Court case provides new implications for the adverse diversity-validity dilemma. This paper seeks to bridg...
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