Purpose: study of influence of physical activity to person's psychological well-being. Material: The study involved 198 respondents aged of 18 to 22 years, including 89 cadets of the Military Institute and 109 civilian students of Taras Shevchenko National University of Kyiv. The Riff's Scale of Psychological Well-Being (adapted by T.D. Shevelenkova and T.P. Fesenko) and Danilchenko's questionnaire "Subjective social well-being" were used. Results: The discuss influence of physical activity on students' psychological and subjective social well-being. The performed study found that students who do physical exercises periodically have the highest psychological well-being. High psychological well-being was found at the group of students who are systematically engaged in physical activities. Significant differences were not found between the three groups of students (divided by the periodicity of their physical activity) as for their subjective social well-being. The higher scores were shown by students engaged in team-based physical activities in comparison with those who prefer individual forms. The article presents recommendations for the use of psycho diagnostic instruments, depending on a research purpose and the specific of examinees' activities. Conclusions: The students who periodically engaged in physical activities have the highest psychological well-being; they show higher subjective sense of happiness, more content with their lives and demonstrate higher satisfaction with their social relationships.
Combining classical selection methods with molecular marking and gamete cell technology, it is possible to obtain constant source material with pyriculariosis resistant genes in a short time, which will significantly reduce the time of the selection process. The aim of the study was to assess the responsiveness to culture of anthers in vitro of domestic selection rice samples with pyriculariosis resistant genes. Data are given on the callusogenic and regenerative ability of 10 rice genotypes with pyriculariosis resistant genes in anther culture in vitro. Calli with morphogenetic potential were obtained, and 540 genetically stable (homozygous) androgenic lines were rapidly created on the basis of selectively valuable samples of Russian selection that possess the specified characteristics and carry pyriculariosis resistant genes.
The aim of the study was to study the development of rice microspores in anther culture in vitro, study the structure of androclinic callus to identify cyto-embryological features of the formation of morphogenic structures in anther culture, obtain doubled rice haploids (Oryza sativa L.) and accelerate the development of valuable breeding material with desired properties. Within the framework of this study, the results of a cyto-histological study of rice haploid androgenesis in vitro were obtained, which indicate that it is induced under the influence of phytohormones from rice anther microspores at the mononuclear or early binuclear stage of development. The abnormal development of microspores on nutrient media with phytohormone 2,4-D was traced, in which nuclei, having lost their characteristic functions, acquired the ability to unlimited division and growth with the formation of microcallus. The morphological structure of calli was assessed. The main morphotypes of callus tissues and the pathways of morphogenesis, leading to the formation of androgenic structures, up to full-fledged regenerant plants, were identified. Homozygous androgenic lines based on F1 and BC1 - rice generations obtained in the course of hybridization and backcrossing between Chinese samples carrying blast resistance genes and Russian accessiond were rapidly developed.
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