منابع مشابه
the role of russia in transmission of energy from central asia and caucuses to european union
پس ازفروپاشی شوروی،رشد منابع نفت و گاز، آسیای میانه و قفقاز را در یک بازی ژئوپلتیکی انرژی قرار داده است. با در نظر گرفتن این منابع هیدروکربنی، این منطقه به یک میدانجنگ و رقابت تجاری برای بازی های ژئوپلتیکی قدرت های بزرگ جهانی تبدیل شده است. روسیه منطقه را به عنوان حیات خلوت خود تلقی نموده و علاقمند به حفظ حضورش می باشد تا همانند گذشته گاز طبیعی را به وسیله خط لوله مرکزی دریافت و به عنوان یک واس...
15 صفحه اولPersistence and transmission of natural type I feline coronavirus infection.
To examine the mode of natural transmission and persistence of feline coronavirus (FCoV), FCoV strains shed by domestic cats were investigated over periods of up to 7 years. An RT-PCR that amplified part of the 3' end of the viral spike (S) gene was devised to distinguish FCoV types I and II. All but 1 of 28 strains of FCoV from 43 cats were type I. Nucleotide identities of the amplified 320 bp...
متن کاملSV40 gene activity during lytic infection and in a series of SV40 transformed mouse cells.
Transcription of SV40 DNA was measured during lytic infection and in five SV40 transformed mouse cell lines. During productive infection, 50 per cent of viral DNA reacted with saturating amounts of lytic RNA. Varying portions of the SV40 genome were transcribed in transformed mouse cells, ranging from 15 per cent in a line which failed to yield virus, to 50 per cent in one line from which high ...
متن کاملIntrauterine Vertical Transmission of SARS COV2 Infection in Iranian Neonates
Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-COV-2) is responsible for COVID-19 disease that is transmitted from human to human via respiratory droplets and contact routes. There is no clear accurate evidence about intrauterine transmission of COVID-19 infection among newborns. Case present :The present report aims at provid ing accurate and clear information about a one-day singleton...
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ژورنال
عنوان ژورنال: Virology
سال: 2003
ISSN: 0042-6822
DOI: 10.1016/s0042-6822(03)00435-5