[Clinical parameters of the oral cavity in postmenopausal women during the course of a nonsteroidal anti-inflammatory drug].

The Aim Of The Study: Was to assess the clinical effectiveness of the course of ketoprofen lysine salt after its oral application in postmenopausal women with vitamin D deficiency in the complex therapy of inflammatory periodontal diseases.

Materials And Methods: The study comprised 100 women with decreased bone mineral density and chronic generalized mild to moderate periodontitis. The average age was 55.

[Study on effects of theraupetic and prophilactic toothpaste with NovaMin on oral cavity in young tobacco users].

The Aim Of The Study: Was to assess the clinical effectiveness of the course use of toothpaste with NovaMin by smoking and nonsmoking patients along with its complex effects on the oral cavity.

Materials And Methods: 75 young patients (46 males and 29 females, mean age 23.95±2.

History of trace gases in presolar diamonds inferred from ion-implantation experiments.

Diamond grains are the most abundant presolar grains found in primitive meteorites. They formed before the Solar System, and therefore provide a record of nuclear and chemical processes in stars and in the interstellar medium. Their origins are inferred from the unusual isotopic compositions of trace elements-mainly xenon-which suggest that they came from supernovae.

Experimental simulations of the photodecomposition of carbonates and sulphates on Mars.

There is indirect spectroscopic evidence for the presence of sulphates and carbonates on the martian surface, and such minerals are also found in SNC meteorites, which are thought to be of martian origin. But although carbonates are expected to be abundant in the martian regolith, attempts to detect them directly have been unsuccessful. Here we report laboratory studies of the decompostion of calcium carbonate and magnesium sulphate under ultraviolet irradiation, which mimic the conditions under which photodecomposition of surface minerals by solar ultraviolet light might occur on Mars.