Special articles on synthesis and supramolecular structure of functionality amphiphiles. Transport behaviors of steroid hormones facilitated by HTAB micelles through a water membrane.
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چکیده
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the effect of vocabulary instruction through semantic mapping on learning and recall of efl learners
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15 صفحه اولIon transport through gramicidin A. Water structure and functionality.
Molecular Dynamics (MD) simulations were performed on a gramicidin A dimer model representing a transmembrane channel. Different from previous simulations the peptide was in contact with bulk water at both ends of the dimer to guarantee a realistic description of the hydration of the biomolecule. The flexible BJH model for water was employed in the simulations and the gramicidin-water, gramicid...
متن کاملSteroid Hormones: Membrane transporters of steroid hormones
The discovery of a plasma membrane ABC protein that exports steroids in yeast highlights the possibility that similar membrane sorting systems in mammalian cells may modulate the access of steroids to their receptors.
متن کاملPhotolabile Amphiphiles with Fluorogenic Thioxanthone-Dithiane Functionality: Synthesis and Photoinduced Fragmentation in Micelles.
Novel photolabile amphiphiles containing thioxanthone-based fluorogenic caging groups are developed. Photoinduced fragmentation in dithiane-thioxanthone adducts was demonstrated to occur with 100% quantum efficiency at λ ~ 320 nm and more than 50% at λ ~ 360 nm. A plausible mechanism involves homolytic fission of a carbon-carbon single bond in the excited thioxanthone followed by disproportiona...
متن کاملa genre analytic study of research papers written by bilingual writers and their beliefs: a case of persian-english writers
تحقیق حاضر گزارشی است از تحلیل بخش مقدمه دو دسته از مقالات که عبارتند از: 11 مقاله از دو نویسنده دوزبانه فارسی زبان, که شامل مقدمه 4 مقاله به زبان انگلیسی و چاپ شده در مجلات بین المللی, مقدمه 3 مقاله به زبان انگلیسی و 4 مقاله به زبان فارسی چاپ شده در مجلات داخلی می شود؛ و 12 مقاله از محققان خارجی که در مجله applied linguistics به چاپ رسیده است. مبنای تئوری این تحلیل ها نظریه سوئلز (1990) یا هما...
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ژورنال
عنوان ژورنال: NIPPON KAGAKU KAISHI
سال: 1990
ISSN: 2185-0925,0369-4577
DOI: 10.1246/nikkashi.1990.1003