The cooling of molecules during the adiabatic expansion of supersonic seeded molecular beams is reviewed and illustrated by the example of NO -molecules. The reduction of the Doppler width by collimation of the beam and ...

The string theory is a fast moving subject, both physics wise and in the respect of mathematics. In order to keep up with the discipline it is important to move with new ideas which are being stressed. Here I wish to ...

A special class of differentiable functions on an infinite integral domain which is not a field is introduced. Some facts about these functions are established and the special case of z is studied in more detail

Starting from 2-(2-pyridyl) imidazole a series of substituted imidazoles (2-5) were prepared. From the reaction of 2-(3-pyridyl) -4-(or 5) nitroimidazole (15) with dimethyl sulfate in alkaline medium 1-methyl-2-(3- py ...

The synthesis of a series of purine analogues of the acyclonucleoside compound 14 (acyclovir) is described. Compounds in this series have been shown to have pronounced activity against herpes virus-type l(HSV-1). The ...

The dipolar cycloaddition reactivity of N-(1-naphthy1)-1,4- benzoquinoneimine N-oxide and N-phenyl-1,4- naphthoquinoneimine Noxide are investigated, The latter gives the expected adducts with common dipolarophiles such ...

The structural features of chloromethyl ethers are shown to have a significant effect on the formation of N(7)- or N(9)- alkylated isomers of purine acyclo-nucleosides. The chemical synthesis of 2-[9-(ethoxymethyl) adenyl] ...

In the presence of magnesium and hexamethylphosphorictriamide, HMPT, trimethylchlorosilane, TMS-C1, reacts with cyanoepoxides to give related compounds. Ring cleavage at ? - position of cyanoepoxide, 1, followed by the ...

Techniques of immobilization of microbial- cells have been established by multifunctional reagents such as glutaraldehyed on a solid support. Immobilized cell reactor was designed to demonstrate stability of cross linking ...

The quantitative changes of the high mobility group (HMG) nonhistone chromosomal proteins in nondividing, differentiated peritoneal exudate neutrophils were identified by their solubility, electrophoretic mobility on both ...