اصول بررسی آزمایشگاهی کچلی در دامها و مطالعه عوامل مولد آن در گوساله ها

بررسی و تعیین قارچهای مولد کچلی در شهرستان همدان

In order to determine the extent and causative agents of dermatophytoses in the Hamadan region of west Iran; a study was made during a 9 month period from October 1991 to June 1992. A total of 7495 individuals were studied of whom 681 (9%) were suspected of having cutaneous mycoses. Among them dermatophytoses were the commonest infection (259/681=38%). Of 256 individuals infected with derm...

Degenerate Four Wave Mixing in Photonic Crystal Fibers

In this study, Four Wave Mixing (FWM) characteristics in photonic crystal fibers are investigated. The effect of channel spacing, phase mismatching, and fiber length on FWM efficiency have been studied. The variation of idler frequency which obtained by this technique with pumping and signal wavelengths has been discussed. The effect of fiber dispersion has been taken into account; we obtain th...

اثر بربرین در تنظیم آستروسیتهای Gfap+ ناحیه هیپوکمپ موشهای صحرایی دیابتی شده با استرپتوزوتوسین

Background: Diabetes mellitus increases the risk of central nervous system (CNS) disorders such as stroke, seizures, dementia, and cognitive impairment. Berberine, a natural isoquinolne alkaloid, is reported to exhibit beneficial effect in various neurodegenerative and neuropsychiatric disorders. Moreover astrocytes are proving critical for normal CNS function, and alterations in their activity...

اثر بربرین در تنظیم آستروسیتهای Gfap+ ناحیه هیپوکمپ موشهای صحرایی دیابتی شده با استرپتوزوتوسین

Background: Diabetes mellitus increases the risk of central nervous system (CNS) disorders such as stroke, seizures, dementia, and cognitive impairment. Berberine, a natural isoquinolne alkaloid, is reported to exhibit beneficial effect in various neurodegenerative and neuropsychiatric disorders. Moreover astrocytes are proving critical for normal CNS function, and alterations in their activity...

اصول انتخاب در اصلاح نژاد دامها

ویتامین A و نقش آن در دامها