نتایج جستجو برای: nd نهاوند
تعداد نتایج: 32020 فیلتر نتایج به سال:
Newcastle disease (ND) is one of the most serious illnesses of chickens. Live vaccines are widely used to prevent chicken from the disease all over the world. To access the effective and potentiate ND vaccine, a homogenous subpopulation from LaSota strain was selected following cultivation of the virus on primary chicken embryofibroblast (CEF) cells. Pathogenicity indices and molecular characte...
In this study, Nd-doped cobalt oxide (Nd-Co3O4) nanoparticles were prepared by a combustion synthesis procedure using Co(acac)3 complex. The nanoparticles were characterized by infrared spectroscopy (IR), X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX). Then, the effect of Nd-Co3O4 ...
Background: Anabolic-androgenic steroids are used at high doses by athletes for improving athletic ability, physical appearance and muscle mass. Unfortunately, the abuse of these agents has significantly increased. It has been established that exercise and high doses of anabolic-androgenic steroids may influence the hypothalamic- pituitary-testis axis, which can in turn affect testicular apopto...
nipple discharge (nd) can be the earliest presenting symptom of breast cancer. we hereby present two cases of breast cancer with no palpable mass manifesting as isolated nd, which was whitish in color. in both cases, cytology of the discharge revealed highly pleomorphic cells indicating a high grade malignancy. mammography showed diffuse, extensive microcalcifications. simple mastectomy with ax...
با توجه به ظرفیت محدود اشتغال در بخش دولتی، امروزه بر بخشهای تعاونی و خصوصی تأکید زیادی شده است. هدف از پژوهش حاضر بررسی عوامل مؤثر بر اشتغال پایدار شرکتهای تعاونی و خصوصی فعال در شهرستان نهاوند و مقایسه این عوامل در بین شرکتهای تعاونی و خصوصی است. پژوهش از نظر ماهیت و روش از نوع توصیفی- پیمایشی و از نظر هدف کاربردی است. جامعه آماری این پژوهش 250 مدیر از شرکتهای تعاونی و خصوصی فعال در شهرست...
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