10 research outputs found
Geochemical features of the rocks of the Great Tolbachik Fissure Eruption 1975–1976 in relation to petrogenesis
Student-supervisor interaction problems in joint research activity
Growing interest in improving the quality of student’s research activity in higher education has led to an emphasis on student-supervisor interaction in joint research activity. The study presented here was carried out in Tyumen State University, Tyumen, Russia. The participants were 30 supervisors and 60 students from the Pedagogical Institute. The study defined student and supervisor interaction problems and characterized the ways of student-supervisor interaction that reduce student’s motivation for a creative approach to writing research work when student’s research work is perceived as (1) supervisor’s burden, (2) a source of supervisor’s innovative ideas, (3) a source of additional information or (4) a source of primary information processing for supervisor’s scientific work. Implications are given to prevent ineffective ways of student-supervisor interaction and improve the quality of student’s research training in multi-level university education
Marine benthic algae of the South Kamchatka state wildlife sanctuary (Kamchatka, Russia)
Asterocolax denticulatus (Tokida) Feldmann et G. Feldmann, 1951, a New Representative of Delesseriacean Algae (Ceramiales: Rhodophyta) in Coastal Waters of Kamchatka (Russia)
Radiobiological Effects of the Combined Action of 1-β-D-Arabinofuranosylcytosine and Proton Radiation on B16 Melanoma in vivo
Abstract Taking into account the previously obtained data on the ability of 1-β-D-arabinofuranosylcytosine (AraC) to significantly increase the number of DNA double-strand breaks after cell culture exposure to ionizing radiation in vitro, the aim of this study was to evaluate the combined action of this compound and proton radiation at a focal dose of 10 Gy on of B16 melanoma growth and a number of processes associated with the radiation response of the tumor—in comparison with those after single irradiation with a proton beam in vivo. Significant tumor growth inhibition was established in both groups of irradiated animals in comparison with the control; the most pronounced effect was observed with combined exposure. Molecular cell parameters of cell death and proliferative activity changed approximately to the same extent after the studied exposures compared with the control. However, the proportion of cancer stem cells was reduced by 3.1 times after combined exposure compared with single irradiation (p = 0.003), which, at least in part, explains the greatest inhibition of tumor growth after irradiation in the presence of AraC
Some problems of the teaching of organic chemistry in universities of Russia
[No abstract available
Some problems of the teaching of organic chemistry in universities of Russia
[No abstract available