Equisetum myriochaetum is a Mexican plant used in folk medicine to treat kidney diseases and type 2 diabetes mellitus. The main constituents of the phytoextract are flavonol glycosides (kaempferol), phytoesterols and ...

A space is said to be _21-homogeneous provided that there are exactly two orbits for the action of the group of homeomorphisms of the space onto itself. It is shown that if X is a 1/2-homogeneous continuum with at least ...

The addition of diazomethane and diazoethane to enantiopure (S)-(+)-3-[(4-methylphenyl)sulfinyl]-5,6-dihydropyran-2-one (3) afforded the corresponding pyrazolines 4 and 6-exo in good yields and with almost complete pi-facial ...

1-oxa-4,6-dithia-5-arsocane morpholinyldithiocarbamate (1) and 1,3,6-trithia-2-arsocane 2-diethyldithiocarbamate (2) have been prepared by reacting the corresponding sodium dithiocarbamates with 1-oxa-4,6-dithia-5-arsocane ...

In the crystal structure of the title compound, C26H22N4, the molecule is located on an inversion centre and shows an E configuration with respect to each C=N bond. The dihedral angle between the phenyl rings in the ...

The basic difference equations for biased correlated walks on an infinite line are solved by means of the Fourier-Laplace techniques. In terms of these solutions the discrete Laplace transforms of first-passage probabilities ...

Two new species of Deuterosminthurus are described and illustrated. One is found in dry forest canopy at Chamela, Jalisco, Mexico, and the other is associated with sugarcane at La Habana, Cuba. A key for identification of ...

In 2-methyl-1,4,5-triphenyl-1H-imidazole, C22H18N2, the three substituent phenyl groups are not delocalized with the imidazole moiety

Experimentally it is found that the pressure dependence of T-c, in high-T-c superconductors, is influenced by several factors. The carrier density, the doping, and the contraction of the unit cell are some of these factors. ...