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41.
Ermakova S Sokolova R Kim SM Um BH Isakov V Zvyagintseva T 《Applied biochemistry and biotechnology》2011,164(6):841-850
Fucoidans were isolated by water extraction and ion-exchange chromatography from brown algae Eclonia cava, Sargassum hornery, and Costaria costata collected near of Korean coasts. The structures of fucoidans were investigated. Fucoidan from E. cava was mixture of sulfated rhamnogalactofucan and galactofucan. Fucoidan from C. costata was a sulfated galactofucan. Fucoidan isolated from S. hornery was separated into three fractions: a homofucan sulfate, a homofucan but without sulfate groups, and a sulfated rhamnofucan.
The results clearly showed that fucoidans play an inhibitory role in colony formation in human melanoma and colon cancer cells
and may be effective antitumor agents. 相似文献
42.
Vysotskii V. I. Patrusheva O. V. Vysotskaya T. A. Isakov V. V. 《Russian Journal of Organic Chemistry》2002,38(8):1130-1136
Hydroamination of tricyclo[7.3.1.02,7]tridec-2(7)-en-13-one according to Leukart reaction furnished (tricyclo[7.3.1.02,7]tridec-2(7)-en-13-yl)methanamides stereoisomeric at C13 atom. The corresponding epoxides were prepared therefrom. The unsaturated and epoxidized methanamides were hydrolyzed into amines that were converted into Schiff bases.The configurations of substances were established. 相似文献
43.
A solution to the problem of motion of a projectile in the bore of a pneumatic line launcher equipped with a fast-acting valve of large clear opening is obtained. The results are represented in the user-friendly graphical form and include a variety of the gasdynamic and design parameters of the launcher that influence the projectile velocity. The calculated data are in good agreement with data of multiparametric experiments. 相似文献
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A. I. Akhmedov E. I. Gasanova D. Sh. Gamidova E. I. Isakov 《Russian Journal of Applied Chemistry》2007,80(8):1441-1442
New viscosity additives to oils, based on copolymers of alkyl methacrylates and allyl monomers, were developed. 相似文献
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Yu. A. Isakov 《Mechanics of Composite Materials》1974,10(4):509-517
The spiral winding conditions for strands and tape are considered for some common geometries. It is shown that in the case of tape three conditions — two equilibrium conditions and a deformation condition — are necessary and sufficient. 相似文献