Heart rate of women in case of regular fitness classes

The objective of the study was to investigate the characteristics of the reaction of heart rate of women doing fitness to performance of standardized muscular load. Women of 22 to 35 years of age, having different fitness experience (frequency of classes - Three times a week) were involved in the study. The total number of subjects was 55 people, including 29 women, regularly engaged in tracing (one of the varieties of fitness) for 1 year, and 26 - beginners engaged in the given direction of fitness. Women regularly practicing tracing had heart rate indicators varying slightly during muscular exercise and restored much faster on completion of exercise than women in the reference group. Therefore, regular tracing classes greatly contribute to improving cardiac functional capacity

Unconventional hydrocarbon reservoir zones in hypabyssal complexes of the basement of the tatar arch

© SGEM2017. All Rights Reserved. Within the crystalline basement of the Tatar arch of the East-Russian plate, specific zones are distinguished, which can be attributed to unconventional reservoir zones. According to previous studies, different types of genesis are generated: decompressed zones of destruction of great depths, weathering crusts at the boundary of the sedimentary cover and crystalline basement, fractured permeable zones subjected to later hydrothermal processes, etc. Formation of different types of reservoir zones is associated with individual stages of geodynamic evolution of the basement. Unconventional zones are of great interest that associated with the hypabyssal complexes of the rocks of the South Tatar arch. Such zones are established within various territories in the world, for example, in the basins of Australia, California in the USA, on the southern side of the Suez graben, and the West Siberian oil and gas province. In the Volga-Ural oil and gas province, such zones are allocated within the Kamsko-Belsky, Sernovodsko-Abdullinsky and Kamsko-Kinel aulacogenes of the South Tatar arch. We outlined the section of crystalline rocks of the Pervomaysky area with a detailed description of potential reservoir zones and various types of superimposed processes that form a void space of rocks

Effects of pyrocatechol on neuromuscular transmission

Effects of pyrocatechol on neuromuscular transmission were studied both in the frog pectoral-cutaneous muscle and in the mouse phrenic-diaphragmatic preparation by means of extracellular microelectrode recording of synaptic signals. Pyrocatechol applied in a concentration of 0.05 mM increased the frequency of miniature end-plate currents (MEPC) and the amplitude of end-plate current (EPC) by increasing its quantum content. Pyrocatechol also increased the duration of presynaptic response. When voltage-dependent potassium channels had been blocked, pyrocatechol affected neither the EPC quantum content nor the duration of presynaptic response. It is suggested that the pyrocatechol-induced enhancement of transmitter release results from modulatory effects of pyrocatechol on voltage-dependent potassium current in the membrane of a nerve terminal. © 1995 Plenum Publishing Corporation

Finely dispersed minerals in destruction zones of deep horizons – catalyzers of geofluid transformation

© SGEM2015. Based on experimental simulation implementation of catalytic mechanism of generating hydrocarbon systems containing gas and liquid phases from methane is revealed in destruction zones of the crystalline basement of Eastern Russian Plate. Catalytic activity of finely dispersed clay minerals of destruction zones is studied in the presence of reservoir water. Simulation experiments showed possibility of generating gaseous and liquid petroleum hydrocarbons in destruction zones of the crystalline basement of paleo platforms. Generation process is carried out under the catalytic activity of natural finely dispersed clay associates in the presence of promoting additives in reservoir water. Hydrocarbon content is determined by the ratio of intermediate compounds formed as a result of partly implemented steam reforming, their conversion by Fischer-Tropsch mechanism into different sealing products. Such zones of the crystalline basement in deep horizons can act as a “chemical reactor” for generating hydrocarbon systems, the total yield of which is defined by duration of initial components contact

Evaluation of disabled sportsman organism functional state as the element of rehabilitation measure system

© 2016, International Journal of Pharmacy and Technology. All rights reserved.The reaction of heart rate on a standard muscle strain and especially its recovery after the load completion is studied among disabled athletes. The analysis of heart rate was carried out in two stages. The heart rate indicators of disabled athletes at rest were examined during the first phase. During the second stage disabled athletes performed muscle strain in the form of shuttle acceleration for one minute along the basketball court perimeter, then the features of heart rate indicators were analyzed. It was found that during the annual cycle of muscle training the values of heart rate among wheelchair basketball players change "by leaps and bounds". The highest heart rate values registered during the preparatory period are replaced by their significant reduction during the competitive period. It was revealed that the heart rate response to the execution of muscular load and HR recovery time after muscular exercise depends on the level of fitness. The higher the level of fitness among wheelchair basketball players, the less the HR reaction and the shorter the recovery time of heart rate. The lowest heart rate response to the execution of muscular load and simultaneously a rapid recovery of heart rate after the exercise is observed during competitive period. Maximum heart rate response to the execution of muscular load and a longer recovery of heart rate is observed during the preparatory period

Scientific advances of Kazan' State Medical University in studying the topical problems in occupational medicine

Economical reform has led to difficulties in economics. Labor conditions at industrial enterprises are poor. Kazan' State Medical University has investigated occupational diseases of mental workers. Hygienic, medicinal, prophylactic, and organizational measures have been developed for improving the labor conditions. Emotional stresses have been investigated. Influence of computer work on man health is studied. Labor conditions at enterprises manufacturing the films and magnetic tapes have been investigated. Activities of workers at automobile plants have been studied. International cooperation is developed

Material composition of coastal marine placer deposits of the Arabian sea coast (Kollam, Kerala, India)

© SGEM2016.The article is devoted to the comprehensive study of black sands – coastal-marine placer deposits on the coast of the Arabian Sea (Kollam, Kerala, India). In the course of works we studied in detail the mineral composition of sands, consisting of ore minerals (ilmenite, rutile), fragments of quartz, feldspar, garnet, zircon and monazite. Enhanced background of radioactive chemical elements is associated with black sands. The ratio of monazite and ilmenite in sands is variable. Based on the results of research we established two morphological types of zircons: with an admixture of Hf (up to 1.3%) and without Hf. Ore fraction is presented by ilmenite, containing Ti up to 37%, Fe up to 25%, useful impurities – V up to 0.5%. Studies suggest that black sands of the coastal-marine zone in Kerala have heterogeneous composition: ore and nonmetallic components are allocated. Ore minerals prevail in sands: ilmenite, to a lesser extent - rutile. We also allocated and studied mineralogical and geochemical features of other minerals - quartz, zircon, monazite, sillimanite, garnet. The investigated samples of sands contain an increased amount of radioactive chemical elements, owing to a high content of monazite mineral (contains thorium-232). The high concentration of minerals as part of the sands is due to the influence of wave action of the sea in littoral areas, which contributes to the removal of light components and the accumulation of heavy fractions with a high amount of zircon and monazite

Hydrogen sulfide inhibits giant depolarizing potentials and abolishes epileptiform activity of neonatal rat hippocampal slices

© 2016 IBROHydrogen sulfide (H2S) is an endogenous gasotransmitter with neuroprotective properties that participates in the regulation of transmitter release and neuronal excitability in various brain structures. The role of H2S in the growth and maturation of neural networks however remains unclear. The aim of the present study is to reveal the effects of H2S on neuronal spontaneous activity relevant to neuronal maturation in hippocampal slices of neonatal rats. Sodium hydrosulfide (NaHS) (100 μM), a classical donor of H2S produced a biphasic effect with initial activation and subsequent concentration-dependent suppression of network-driven giant depolarizing potentials (GDPs) and neuronal spiking activity. Likewise, the substrate of H2S synthesis L-cysteine (1 mM) induced an initial increase followed by an inhibition of GDPs and spiking activity. Our experiments indicate that the increase in initial discharge activity by NaHS is evoked by neuronal depolarization which is partially mediated by a reduction of outward K+ currents. The subsequent decrease in the neuronal activity by H2S appears to be due to the rightward shift of activation and inactivation of voltage-gated Na+ currents, thus preventing network activity. NaHS also reduced N-methyl-D-aspartate (NMDA)-mediated currents, without essential effect on AMPA/kainate or GABAA-mediated currents. Finally, H2S abolished the interictal-like events induced by bicuculline. In summary, our results suggest that through the inhibitory action on voltage-gated Na+ channels and NMDA receptors, H2S prevents the enhanced neuronal excitability typical to early hippocampal networks

Study of the characteristics of bitumen with adhesive additive using method of X-ray analysis

© SGEM 2017. All Rights Reserved. The most appropriate way to increase grip of bitumen with mineral materials is the use of adhesive additives which are slowing down the process of aging of bitumen due to oxidation and increasing durability of pavement. Adhesive properties of bitumen are important characteristics, as they are having a huge impact on operational properties of composite materials, such as asphalt mixtures. To understand the chemical behavior of the binder components interaction and improve adhesion to mineral components of asphalt concrete mixtures, it is important to study the nature of interaction of road bitumen adhesion with additives. Experimental data are presented in this article shows difference of the diffraction maximums of bitumen samples after mixing with adhesive additive using radiographic method of analysis. The results showed that all samples of modified binders, except bitumen modified with 1% of the mass. additive (which nevertheless shows decline of intensity), missing diffraction maximum, which is specific to additive «Adgezolin» (2θ = 19.6°). Interplanar spaces are also reduced. This allows for the conclusion that during mixing additive “Adgezolin” with the bitumen we have not just physical adsorption, but also a chemical interaction, leading to changing the structure of the binder

Material composition of the Upper Jurassic horizon of Tevlinsko-Russkinsky field (West Siberian oil and gas province)

© SGEM2016.The paper emphasizes the results of lithological and mineralogical analysis of the Upper Jurassic horizon structure within Tevlinsko-Russkinsky field (Western Siberia). The factors are identified that control potential oil bearing of the horizon. We studied lithological and facies evolution of the Upper Jurassic horizon within the field. Heterogeneity of individual sections is revealed. They differ in composition and structure of sandstone clastic and cement mass. The performed complex of studies can attribute reservoirs of the Upper Jurassic horizon of Tevlinsko-Russkinsky field to cluster-granular reservoirs, with mixed type of pore space. It has been established that the Jurassic reservoir rocks of the field belong to nanoporous type by the size of pores and pore channels. The structure of finely dispersed component of the cement mass and structure of the void and pore space are the determining factors for low reservoir properties of rocks. These factors are leading, defining the reservoir properties of rocks. The data obtained allow predicting the formation reaction to the applied methods of enhanced oil recovery in the development process