State of the mineral component of rat bone tissue during hypokinesia and the recovery period

Experiments were conducted on young growing rats. Hypokinesia lasting from 20 to 200 days caused retarded gain in weight and volume of the femur and delayed development of the cortical layer of the diaphysis. In contrast, the density of the cortical layer of the femoral diaphysis increased due to elevation of the mineral saturation of the bone tissue microstructures. Incorporation of Ca into the bone tissue in hypokinesia had a tendency to reduce. Partial normalization of the bone tissue mineral component occurred during a 20 day recovery period following hypokinesia

Effect of six-month hypokinesia in dogs on mineral component, reconstruction and mechanical properties of bone tissue

Ca45 incorporation into the bones of the limbs, particularly in the area of the muscle attachment increased in dogs as a result of 6 month hypokinesia. There were no phenomena of osteoporosis in the cortical layer of the diaphyses; however, changes in the form of osteons, an increase in the number of anastomoses between the channels and the thinning of the subperiosteal layer pointed to disturbances of the bone tissue reconstruction. Mineral saturation of the bone microstructures of the experimental dogs had a tendency to rise. No changes in the mechanical properties of the long bones occurred as a result of hypokinesia in dogs

Comparative analysis of the content of metals and ecotoxicants in the hair of 7-year-old girls, living in different environmental conditions

The investigation and the comparative analysis of the content of metals (ecotoxicants) in the hair of 7-year-old girls, attending the first grade of a comprehensive school, living in different environmental conditions, were carried out. In a modern industrial city with a developed petrochemical infrastructure, there are chemical substances in the air, which often exceed the maximum permissible concentration, and the prolonged exposure of toxic substances causes a change in the functional state of the developing organism. In the conditions of technogenic pollution of the environment, it is especially important to study the impact of metals and ecotoxicants, having a toxic effect on the human body. The scale of growth of modern production is so large, that the amount of substances, emitted per unit of time, is much greater than the amount, which can be neutralized by the environment. Based on the numerous observations, it can be stated, that children are particularly sensitive to the impact of unfavorable environmental factors. Growing organism is characterized by the lowest threshold of perception to the influence of pollutants, high reactivity to external influences, and the degree of its adaptive capacity depends on the age, gender and a number of other individual characteristics. Such experimental direction has an applied significance and is of great scientific and practical interest, since it reflects the general state of the organism and the morphofunctional status of children of the age under study, living in different environmental conditions. On this basis, the study of the content of metals and ecotoxicants in the hair of seven-year-old girls, attending the first grade of a comprehensive school, living in different environmental conditions, was carried out. The following methods were used in the study: biochemical, statistical and the method of directed selection of the contingent. In the process of the study it has been found, that environmental pollution is one of the causative factors of reducing the adaptive capacity of the body, and the peculiarities of hair chemical composition, in regards to the studied substances, are determined by the ecological conditions of living

Brain-controlled modulation of spinal circuits improves recovery from spinal cord injury.

The delivery of brain-controlled neuromodulation therapies during motor rehabilitation may augment recovery from neurological disorders. To test this hypothesis, we conceived a brain-controlled neuromodulation therapy that combines the technical and practical features necessary to be deployed daily during gait rehabilitation. Rats received a severe spinal cord contusion that led to leg paralysis. We engineered a proportional brain-spine interface whereby cortical ensemble activity constantly determines the amplitude of spinal cord stimulation protocols promoting leg flexion during swing. After minimal calibration time and without prior training, this neural bypass enables paralyzed rats to walk overground and adjust foot clearance in order to climb a staircase. Compared to continuous spinal cord stimulation, brain-controlled stimulation accelerates and enhances the long-term recovery of locomotion. These results demonstrate the relevance of brain-controlled neuromodulation therapies to augment recovery from motor disorders, establishing important proofs-of-concept that warrant clinical studies

The role of student government in the formation of the corporate culture department

The objective of the study is to determine the role of self-governance in formation of corporate culture of Automation of Production Faculty of Ufa State Petroleum Technological University. The article identifies difficulties of development of system corporate communication and complication of thematics. It concerns the role of students’ communication and formation of young professionals, analyzes the way faculty life is reflected in corporate mediaВ статье рассматривается роль студенческого самоуправления в формировании корпоративной культуры Факультета автоматизации производственных процессов Уфимского государственного нефтяного технического университета. Отмечены трудности развития системы корпоративных коммуникаций и усложнение тематики. Выявлена роль студенческих коммуникаций в социализации и профессиональном становлении молодых специалистов. Анализируется отражение жизни факультета в корпоративных издания