نتایج جستجو برای: beta angle

تعداد نتایج: 316558  

Journal: :Chemistry and physics of lipids 2007
David A Mannock Marcus D Collins Manfried Kreichbaum Paul E Harper Sol M Gruner Ronald N McElhaney

The thermotropic phase behaviour of aqueous dispersions of some synthetic 1,2-di-O-alkyl-3-O-(beta-D-galactosyl)-rac-glycerols (rac-beta-D-GalDAGs) with both odd and even hydrocarbon chain lengths was studied by differential scanning calorimetry (DSC), small-angle (SAXS) and wide-angle (WAXS) X-ray diffraction. DSC heating curves show a complex pattern of lamellar (L) and nonlamellar (NL) phase...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده ریاضی 1393

در این پایان نامه کدهای دوری مینیمال تولید شده توسط خودتوان های اولیه در حلقه خارج قسمتی ‎$ frac{mathbb{f}_{q}[x]}{langle x^{l^{m}}-1 angle} $‎ را بررسی می کنیم. فاصله همینگ، بُعد و وزن همینگ این دسته از کدهای دوری بررسی و تعیین می گردد

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مازندران - دانشکده علوم انسانی و اجتماعی 1393

تغییرات گسترده در حوزه شهری باعث تغییر در سبک زندگی و الگوی رفتاری ساکنین مناطق شهرنشین و خصوصاً شبکه روابط همسایگی شده است. به گونه ای که روابط بین همسایگان در زندگی شهری از هم گسسته شده و مردم کمتر درگیر روابط همسایگی و محله ای هستند. لذا این پژوهش به بررسی عوامل اجتماعی موثر بر میزان روابط همسایگی شهروندان ساکن شهر بابل می پردازد. جامعه آماری این مطالعه را کلیه خانوارهایی که در سال 93 ساکن شه...

Journal: :The journal of physical chemistry. B 2006
Neda Beheshti Huaitian Bu Kaizheng Zhu Anna-Lena Kjøniksen Kenneth D Knudsen Ramón Pamies José G Hernandez Cifre José García de la Torre Bo Nyström

The formation of associative networks in semidilute aqueous solutions of hydrophobically modified hydroxyethylcellulose (HM-HEC) is dependent on intermolecular hydrophobic interactions. Addition of hydroxypropyl-beta-cyclodextrin (HP-beta-CD) monomers to the system provides decoupling of these associations via inclusion complex formation with the polymer hydrophobic tails. Results from viscosit...

Journal: :Investigative ophthalmology & visual science 1993
R C Tripathi J Li N S Borisuth B J Tripathi

PURPOSE To determine whether trabecular tissue in vivo and cultured trabecular cells have the messenger RNA transcript for transforming growth factor-beta 1 (TGF-beta 1), and to examine whether these cells synthesize and secrete TGF-beta 1 in vitro. METHODS Total RNA was isolated from the trabecular meshwork, iris, and ciliary body freshly excised from porcine eyes as well as from cultured tr...

Journal: :Chembiochem : a European journal of chemical biology 2008
Ming Tang Alan J Waring Mei Hong

The site-specific motion of Arg residues in a membrane-bound disulfide-linked antimicrobial peptide, protegrin-1 (PG-1), was investigated by using magic-angle-spinning solid-state NMR spectroscopy to better understand the membrane insertion and lipid interaction of this cationic membrane-disruptive peptide. The C-H and N-H dipolar couplings and 13C chemical shift anisotropies were measured in t...

Journal: :iranian journal of radiation research 0
s.m. el-sonbaty microbiology department, national center for radiation research and technology, cairo, egypt a.f.m. ismail drug radiation research department, national center for radiation research and technology, cairo, egypt a.i. nabeel chemistry department, faculty of education, ain shams university, cairo, egypt

background: &beta-glucans; are glucose polymers with a variety of stimulatory effects on the immune system. the objective of this study was to evaluate the immune-enhancing activities of low molecular weight gamma irradiated &beta-glucan; (i&beta-g;) extracted from pleurotus ostreatus in response to pseudomonas aeruginosa infection in rats. materials and methods: &beta-glucan; (&beta-g;) powder...

Journal: :Biophysical journal 1996
W J Sun S Tristram-Nagle R M Suter J F Nagle

Systematic low-angle and wide-angle x-ray scattering studies have been performed on fully hydrated unoriented multilamamellar vesicles of saturated lecithins with even chain lengths N = 16, 18, 20, 22, and 24 as a function of temperature T in the normal gel (L beta') phase. For all N, the area per chain Ac increases linearly with T with an average slope dAc/dT = 0.027 A2/degree C, and the lamel...

Journal: :Biopolymers 2000
D Pal P Chakrabarti

The known protein structures have been analyzed to find out if there is any pattern in the type of residues used and their conformation at the two terminal positions of the polypeptide chains. While the N-terminal position is overwhelmingly occupied by Met (followed by Ala and Ser), the preference for the C-terminal is not as distinct, the residues with highest propensities being Lys, Arg, Gln,...

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