نتایج جستجو برای: razaghi e m
تعداد نتایج: 1463942 فیلتر نتایج به سال:
The objective of the study in this paper is to define M₁,M₂-direction curves and M₁,M₂-donor curves of the spacelike curve γ via the Bishop frame of type-2 in E₁³. We obtained the necessary and sufficient conditions when the associated curves to be slant helices and general helices via the Bishop frame of type-2 in E₁³. After defining the spherical indicatrices of the associated curves, we obta...
برای فضای $ x $ فرض کنید $ e_{k}(x) $، $ e^{s}_{k}(x) $ و $ e^{circ}_{k}(x) $ به ترتیب نشان دهنده ی مجموعه کلاس های اویلر از کلاف های $ k $-صفحه جهت دار روی فضای $ x $، مجموعه کلاس های اویلر از کلاف های $ k $-صفحه بدیهی پایدار روی $ x $ و کلاس های کروی در $ h^{k}(x;mathbb{z}) $ باشند. در این پایان نامه نتایج کلی در مورد مجموعه های $ e_{k}(x) $، $ e^{s}_{k}(x) $ و $ e^{cir...
experimental autoimmune encephalomyelitis (eae) is a mouse model for multiple sclerosis (ms), this autoimmune disease is mainly mediated by adaptive and innate immune responses that lead to an inflammatory demyelination and axonal damage. imatinib mesylate is a selective protein tyrosine kinase inhibitor with immunomodulatory properties that abrogates multiple signal transduction p...
Background: There is a growing concern on the impact of the presence of extended-spectrum β-lactamase (ESBL) producing Escherichia coli isolated from animals on public health. OBJECTIVES: The aim of this study was to investigate the presence of three classes of ESBL genes in E. coli isolates from sheep and broilers at a slaughter in Urmia region, Iran. METHODS: A total of 111 E. coli isolates w...
objective(s): 3, 4-methylenedioxymethamphetamine (mdma) one of the methamphetamine derivatives that affect the reproductive system, has not been well understood. many young people are consumers of drugs such as mdma that can affect their reproductive capability. apoptosis is the main mechanism for male infertility. pentoxifylline (ptx) increases camp intracellularly and reduces tumor necrosis f...
اساسی ترین فعالیت در میان فعالیت های متعدد یک زنجیره ی تأمین، فرایند خرید و اساسی ترین تصمیم در مرحله ی مدیریت خرید، انتخاب تأمین کننده است. تأثیر فرایند انتخاب تأمین کننده ی شایسته بر عملکرد سازمان به عنوان یک وظیفه ی حیاتی امری است غیر قابل انکار که طی سالیان اخیر همواره مطرح بوده است. در این مقاله به منظور بررسی تأثیر انتخاب تأمین کننده بر میزان سوددهی و رضایت مندی مشتریان در یک واحد تولیدی ...
background mycobacterium tuberculosis is a vicious microbe co-existing with the infected host. this pathogen exploited opportunities to spread during periods of urbanization and social upheaval, and got retreated with improved hygiene. objectives this investigation was designed to clone and characterize m. tuberculosis mutt gene, a homologue of a dna repair protein in escherichia coli. the aim ...
I MARCH 2005 I 57 any companies have found out the hard way that successful e-commerce requires more than a flashy Web presence. Electronic customer and supplier interaction must be seamlessly integrated with existing business processes. Quality professionals will find they must redesign business processes with this aim, particularly in the service industry. There is a historic parallel for the...
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