نتایج جستجو برای: اتحادیه اروپاطبقه بندی jel o4
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بریتانیا به عنوان یکی از قدرت بزرگ اروپایی، همواره بدین شهرت داشته است که مخالف تعمیق همگرایی در اروپا و اروپایی سازی است. در واقع این کشور یکی از سرسخت ترین مخالفان تبدیل اتحادیه به یک فدراسیون اروپایی بوده و به اعتقاد صاحب نظران، تنها الزامات اقتصادی بریتانیا را وادار به پیوستن به روند همگرایی در اروپا کرده و این کشور در سیاست های خود نگاهی فراآتلانتیکی دارد. این مقاله بر ...
Nano-particles of polycrystalline Zn Fe2 O4 are prepared using sol-gel method with Ni, and Sm. They are obtained as dried gel after the successful chemical reaction of their respective metal nitrate solutions in the midst of citric acid as catalyst. Synthesis of materials is confirmed using XRD from the report of single phase polycrystalline ferrite material. The magnetic properties of Zn-ferri...
We generalize the concept of cubic group into any dimension and derive their conjugate classifications and representation theorys. Double group and spinor representation are defined. A detailed calculation is carried out on the structures of four-dimensional cubic group O4 and its double group, as well as all inequivalent single-valued representations and spinor representations of O4. All repre...
Cobalt ferrite (CoFe2 O4 ) nanoparticles have attracted significantly attentions for spintronics, recording media and bioapplications due to their unique magnetic and chemical properties. In this work, single phase CoFe2 O4 nanoparticles were synthesized at various coprecipitation temperatures (60, 80 and 90 °C) without post calcination. The effects of oleic acid as surfactant on the microstruc...
Scarce access to primary samples and lack of efficient protocols to generate oligodendrocytes (OLs) from human pluripotent stem cells (hPSCs) are hampering our understanding of OL biology and the development of novel therapies. Here, we demonstrate that overexpression of the transcription factor SOX10 is sufficient to generate surface antigen O4-positive (O4+) and myelin basic protein-positive ...
Nineteen of 28 strains of rumen organisms isolated from a cow on a high roughage diet and identified morphologically as butyrivibrios, reacted to a low agglutinin titer with salmonella antisera, forming five groups. However only one strain reacted with polyvalent O salmonella antiserum. This strain reacted with O4 factor serum and with antisera to Salmonella strains containing the antigen O4, a...
Post-translational modification of the fourth component of complement. Sulfation of the alpha-chain.
The fourth component of complement (C4) was found to incorporate radiolabel from [35S]O4 during synthesis in murine peritoneal macrophages and the human hepatoma-derived cell line, HepG2. The sulfate label was localized to the COOH-terminal autolytic fragment of the C4 alpha-chain. No label was seen associated with intracellular pro-C4. The structurally similar third and fifth components of com...
Manganese oxides (MnOx ) are considered to be promising catalysts for water oxidation. Building on our previous studies showing that the catalytic activity of MnOx films electrodeposited from aqueous electrolytes is improved by a simple heat treatment, we have explored the origin of the catalytic enhancement at an electronic level by X-ray absorption spectroscopy (XAS). The Mn L-edge XA spectra...
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