نتایج جستجو برای: d1d2 domain

تعداد نتایج: 405817  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2008
Ping Zhang Steffen Mueller Marc C Morais Carol M Bator Valorie D Bowman Susan Hafenstein Eckard Wimmer Michael G Rossmann

When poliovirus (PV) recognizes its receptor, CD155, the virus changes from a 160S to a 135S particle before releasing its genome into the cytoplasm. CD155 is a transmembrane protein with 3 Ig-like extracellular domains, D1-D3, where D1 is recognized by the virus. The crystal structure of D1D2 has been determined to 3.5-A resolution and fitted into approximately 8.5-A resolution cryoelectron mi...

Journal: :فصلنامه علمی پژوهشی پژوهشهای قرآنی 0
علی کریم پور قراملکی

the domain of the qur’an has been one of the issues which have raised various viewpoints among the muslim scholars, particularly in recent decades that it has been more widely welcomed due to the muslims increasing attention to their revealed book and their encountering with the views of other religions and schools. in this respect, three viewpoints can be clearly seen among the muslim thinkers...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده کشاورزی 1387

انگور (vitis vinifera l.) یکی از مهمترین درختان ریز میوه در دنیا است که از دیر باز مورد استفاده بشر قرار می گیرد. درخت انگور از نظر اقتصادی بسیار حائز اهمیت و به علت تنوع مصرف میوه و داشتن متابولیت های ثانویه جایگاه خاصی در تجارت جهانی دارد. درخت انگور گیاهی چوبی ، دائمی و کم و بیش سازگار با مناطق مختلف آب و هوایی است. درخت انگور در طول چرخه زندگی در معرض انواع تنش های محیطی به خصوص خشکی ناشی ا...

Journal: :journal of advances in computer research 2016
sedigheh ghofrani

ultrasound images suffer of multiplicative noise named speckle. different de-speckling algorithms run either in spatial domain or in transformed domain. in this paper, an adaptive filter in spatial domain according to assume the nakagami distribution as the statistic of log-compressed ultrasound images is used. for de-speckling in transformed domain, the non-sub sampled shearlet transform is us...

Journal: :فیزیک زمین و فضا 0
محبوبه رضایی فرح آبادی دانشجوی کارشناسی ارشد ژئوفیزیک، گروه ژئوفیزیک، دانشگاه آزاد اسلامی واحد علوم و تحقیقات، تهران، ایران محمد علی ریاحی دانشیار، گروه فیزیک زمین، مؤسسة ژئوفیزیک دانشگاه تهران، ایران میرستار مشین چی استادیار، گروه ژئوفیزیک، دانشگاه آزاد اسلامی واحد علوم و تحقیقات، تهران، ایران

one of the common problems in reflective seismic records is the existence of coherent linear and random noises which cause covering of the most important parts of reflective signals; therefore, it is necessary to attenuate them by processing methods. several processing techniques have been devised for attenuation of coherent linear noises and linear radon or ?-? transform is a powerful techniqu...

Journal: :فیزیک زمین و فضا 0
جلیل ناصری کارشناس ارشد ژئوفیزیک، شرکت eni حمیدرضا سیاهکوهی دانشیار، گروه فیزیک زمین، مؤسسة ژئوفیزیک دانشگاه تهران، ایران

in seismic exploration studies different types of techniques are used to recognize seismic features in terms of their temporal and spatial spectra. variations in frequency content are sensitive to subtle changes in reflection information (castro de matos et al., 2003). in this study the joint time-frequency analysis is used for seismic texture recognition. discrete wavelet transform (dwt) witho...

Journal: :روانپزشکی و روانشناسی بالینی ایران 0
محمد خدایاری فرد mohamad khodayari fard educational sciences faculty, tehran university, jalal-ai-ahmad, expressway, tehran, i,rخیابان آل احمد،رو به روی کوی نصر،دانشکده روانشناسی و علوم تربیتی دانشگاه تهران باقر غباری بناب bagher ghobari bonab خیابان آل احمد،رو به روی کوی نصر،دانشکده روانشناسی و علوم تربیتی دانشگاه تهران محسن شکوهی یکتا mohsen . shokouhi yekta خیابان آل احمد،رو به روی کوی نصر،دانشکده روانشناسی و علوم تربیتی دانشگاه تهران

the studies on psychology of religion, which began in the 19th century in the context of experimental psychology and psychoanalysis, fall into two categories those which explore the impact of religion on various individuals and social dimensions, and those which concentrate on the methodology of religion. the present paper deals with the former category. few studies have so far shown a positive...

Journal: :Infection and immunity 2011
Emma Jane Smith Livia Visai Steven W Kerrigan Pietro Speziale Timothy J Foster

The second immunoglobulin-binding protein (Sbi) of Staphylococcus aureus has two N-terminal domains that bind the Fc region of IgG in a fashion similar to that of protein A and two domains that can bind to the complement protein C3 and promote its futile consumption in the fluid phase. It has been proposed that Sbi helps bacteria to avoid innate immune defenses. By comparing a mutant defective ...

An integral domain $D$ is called a emph{locally GCD domain} if $D_{M}$ is aGCD domain for every maximal ideal $M$ of $D$. We study somering-theoretic properties of locally GCD domains. E.g., we show that $%D$ is a locally GCD domain if and only if $aDcap bD$ is locally principalfor all $0neq a,bin D$, and flat overrings of a locally GCD domain arelocally GCD. We also show that the t-class group...

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