scholarly journals PHYSIOLOGICAL CHANGES IN THE EXTERNAL RESPIRATORY SYSTEM AND OXYGEN-TRANSPORTATION FUNCTIONS OF ATHLETES’S BLOOD IN THE NORTH CONDITIONS. LITERATURE REVIEW

2021 ◽  
Vol 28 (2) ◽  
pp. 25-31
Author(s):  
Alexey Sergeevich Stepanov ◽  
◽  
Andrei Petrovich Koinosov

The regions of the Far North and regions equated to them diff er from central Russia in the severity of their climate. With long-term residence in the North, there is a regular alternation of stress processes necessary to adapt to new seasonal conditions. This review article highlights the view of various researchers on the problem of adaptation of some physiological systems of athletes to the conditions of the North. Physiological changes under the infl uence of natural and climatic factors in the most important systems responsible for providing the body with oxygen are briefl y highlighted. The state of the oxygen transport and respiratory systems is one of the most important values that determine the functional state of the body of athletes, which, in turn, determines the eff ectiveness of their sports activity. The main parameters of the working rhythms of physiological systems are also determined by the regularities of sports training in accordance with the calendar plan. It can be assumed that in the regions of the North, the athlete’s body synchronizes various oscillatory processes: seasonal biorhythms and working rhythms of physiological systems. In this case, the architectonics of biorhythms is determined by the mechanisms of phase synchronization of the functional readiness of the eff ector systems with the rhythms of the functional request [15]. Determination of the patterns of interaction of these oscillatory processes is an urgent task of modern science in the fi eld of sports physiology.

2020 ◽  
Vol 22 (11) ◽  
pp. 50-54
Author(s):  
Nikolaeva E.N. ◽  
Kolosova O.N. ◽  
Popova V.G. ◽  
Arzhakova L.I.

Specific extreme climatic conditions of the North can cause long-term psychoemotional stress, causing violations of the state of adaptive mechanisms of the body and the formation of psychosomatic diseases. Adolescence, due to specific changes in the body, is most susceptible to various stressful factors. The purpose of this work was to study the psychoemotional state and features of the regulatory mechanisms of the body of adolescents living in the North, depending on gender. A study of the level of neuroticism (H) according to G. Eysenck, situational (ST) and personal anxiety (LT) according to Spielberger, analysis of heart rate variability (HRV) using the hardware and software complex "VNS-Spectrum" (LLC "Neuro-Soft", Russia, Ivanovo) in adolescents (n = 58; 30 girls, 28 boys), permanently residing in the city of Yakutsk. Statistical data processing was performed using the program Statistica 13 for Windows. The differences were considered statistically significant at p<0.05. The results show that more than 40% of adolescents (40% - girls, 43% - boys) permanently residing in Yakutsk have a high level of neuroticism, which is significantly higher than in adolescents in Central Russia. Gender differences were revealed in the study of CT and LT. In girls, a high level of CT is detected in 31% of individuals, and a high level of LT is detected in 44%. The values of CT and LT in girls correspond to the average values (40.31±1.85 and 44.06±1.37 points, respectively). Boys have a higher number of individuals with high levels of CT (43%) and LT (54%) than girls. The average CT values are 41.42±1.95 points. Average LT values in boys (45.42±1.56 points), which corresponds to a high level of anxiety. The high level of LT in boys strongly correlates (r = 0.81) with the tension of the mechanisms of regulation of heart activity with the involvement of the suprasegmental Central loop of regulation, which indicates a high level of psychoemotional tension in more than 50% of adolescent boys living in Yakutia.


Author(s):  
Angelina E. Shatalova ◽  
Uriy A. Kublitsky ◽  
Dmitry A. Subetto ◽  
Anna V. Ludikova ◽  
Alar Rosentau ◽  
...  

The study of paleogeography of lakes is an actual and important direction in modern science. As part of the study of lakes in the North-West of the Karelian Isthmus, this analysis will establish the dynamics of salinity of objects, which will allow to reconstruct changes in the level of the Baltic Sea in the Holocene.


2018 ◽  
Vol 20 (2) ◽  
pp. 121-134 ◽  
Author(s):  
G. G. Minicheva ◽  
V. N. Bolshakov ◽  
E. S. Kalashnik ◽  
A. B. Zotov ◽  
A. V. Marinets

2020 ◽  
Vol 58 ◽  
pp. 181-192
Author(s):  
Anna A. Komzolova

One of the results of the educational reform of the 1860s was the formation of the regular personnel of village teachers. In Vilna educational district the goal was not to invite teachers from central Russia, but to train them on the spot by establishing special seminaries. Trained teachers were supposed to perform the role of «cultural brokers» – the intermediaries between local peasants and the outside world, between the culture of Russian intelligentsia and the culture of the Belarusian people. The article examines how officials and teachers of Vilna educational district saw the role of rural teachers as «cultural brokers» in the context of the linguistic and cultural diversity of the North-Western Provinces. According to them, the graduates of the pedagogical seminaries had to remain within the peasant estate and to keep in touch with their folk «roots». The special «mission» of the village teachers was in promoting the ideas of «Russian elements» and historical proximity to Russia among Belarusian peasants.


2020 ◽  
pp. 66-72
Author(s):  
A. Khisamova ◽  
O. Gizinger

In the modern world, where a person is exposed to daily stress, increased physical exertion, the toxic effect of various substances, including drugs. The task of modern science is to find antioxidants for the body. These can be additives obtained both synthetically and the active substances that we get daily from food. Such a striking example is turmeric, obtained from the plant Curcuma longa. Recently, it has been known that curcumin has an antioxidant, anti-inflammatory, anti-cancer effect and, thanks to these effects, plays an important role in the prevention and treatment of various diseases, in particular, from cancer to autoimmune, neurological, cardiovascular and diabetic diseases. In addition, much attention is paid to increasing the biological activity and physiological effects of curcumin on the body through the synthesis of curcumin analogues. This review discusses the chemical and physical characteristics, analogues, metabolites, the mechanisms of its physiological activity and the effect of curcumin on the body.


Author(s):  
Sandip R. Baheti ◽  
Deepa Sharma ◽  
Saroj Devi ◽  
Amit Rai

Difficulty in breathing or shortness of breath may be simply termed as Shwasa (Asthma), As per Ayurveda, Shwasa is mainly caused by the Vata and Kapha Doshas. Shwasa is broadly classified into five types in Maha Shwasa (Dyspnoea major), Urdhawa Shwasa (Expiratory Dyspnoea), Chinna Shwasa (Chyne-stroke respiration), Kshudra Shwasa (Dyspnoea minor), Tamaka Shwasa (Bronchial Asthma). In modern science Tamaka Shwasa can be correlated with Asthma, Asthma which is a chronic inflammatory disease of airway. In modern medicine there is no cure for Asthma, symptoms can typically be improved. In Ayurveda, Asthma can be effectively and safely manage the condition without inducing any drug dependency where Pachakarma procedures and use of internal medication detoxifies the body, provides nutrition and increases the elasticity of lung tissue it also develops natural immunity of the body thus decreasing episodic recurrence of the disease.


Atmosphere ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 172
Author(s):  
Yuan Xu ◽  
Jieming Chou ◽  
Fan Yang ◽  
Mingyang Sun ◽  
Weixing Zhao ◽  
...  

Quantitatively assessing the spatial divergence of the sensitivity of crop yield to climate change is of great significance for reducing the climate change risk to food production. We use socio-economic and climatic data from 1981 to 2015 to examine how climate variability led to variation in yield, as simulated by an economy–climate model (C-D-C). The sensitivity of crop yield to the impact of climate change refers to the change in yield caused by changing climatic factors under the condition of constant non-climatic factors. An ‘output elasticity of comprehensive climate factor (CCF)’ approach determines the sensitivity, using the yields per hectare for grain, rice, wheat and maize in China’s main grain-producing areas as a case study. The results show that the CCF has a negative trend at a rate of −0.84/(10a) in the North region, while a positive trend of 0.79/(10a) is observed for the South region. Climate change promotes the ensemble increase in yields, and the contribution of agricultural labor force and total mechanical power to yields are greater, indicating that the yield in major grain-producing areas mainly depends on labor resources and the level of mechanization. However, the sensitivities to climate change of different crop yields to climate change present obvious regional differences: the sensitivity to climate change of the yield per hectare for maize in the North region was stronger than that in the South region. Therefore, the increase in the yield per hectare for maize in the North region due to the positive impacts of climate change was greater than that in the South region. In contrast, the sensitivity to climate change of the yield per hectare for rice in the South region was stronger than that in the North region. Furthermore, the sensitivity to climate change of maize per hectare yield was stronger than that of rice and wheat in the North region, and that of rice was the highest of the three crop yields in the South region. Finally, the economy–climate sensitivity zones of different crops were determined by the output elasticity of the CCF to help adapt to climate change and prevent food production risks.


1987 ◽  
Vol 24 (6) ◽  
pp. 1086-1097 ◽  
Author(s):  
Mel R. Stauffer ◽  
Don J. Gendzwill

Fractures in Late Cretaceous to Late Pleistocene sediments in Saskatchewan, eastern Montana, and western North Dakota form two vertical, orthogonal sets trending northeast–southwest and northwest–southeast. The pattern is consistent, regardless of rock type or age (except for concretionary sandstone). Both sets appear to be extensional in origin and are similar in character to joints in Alberta. Modem stream valleys also trend in the same two dominant directions and may be controlled by the underlying fractures.Elevation variations on the sub-Mannville (Early Cretaceous) unconformity form a rectilinear pattern also parallel to the fracture sets, suggesting that fracturing was initiated at least as early as Late Jurassic. It may have begun earlier, but there are insufficient data at present to extend the time of initiation.We interpret the fractures as the result of vertical uplift together with plate motion: the westward drift of North America. The northeast–southwest-directed maximum principal horizontal stress of the midcontinent stress field is generated by viscous drag effects between the North American plate and the mantle. Vertical uplift, erosion, or both together produce a horizontal tensile state in near-surface materials, and with the addition of a directed horizontal stress through plate motion, vertical tension cracks are generated parallel to that horizontal stress (northeast–southwest). Nearly instantaneous elastic rebound results in the production of second-order joints (northwest–southeast) perpendicular to the first. In this manner, the body of rock is being subjected with time to complex alternation of northeast–southwest and northwest–southeast horizontal stresses, resulting in the continuous and contemporaneous production of two perpendicular extensional joint sets.


1971 ◽  
Vol 36 (2) ◽  
pp. 170-182 ◽  
Author(s):  
David A. Breternitz ◽  
Alan C. Swedlund ◽  
Duane C. Anderson

AbstractAn isolated burial was excavated from the bank of a tributary of Gordon Creek, Roosevelt National Forest, northern Colorado. A preliminary report was prepared (D. Anderson 1966, 1967) but further analysis of the skeletal material and newly obtained cultural information add significantly to the documentation of the burial.The body of a woman, aged 25-30 years, was given primary interment in a pit coated with red ocher. The body was placed on its left side with the head to the north, was tightly flexed, and was also coated with red ocher. Burial accompaniments include a large precussion flaked biface or preform, a small biface used as a scraping tool, a hammerstone, an end scraper, a preform with fire pocks, cut and incised animal ribs, and a perforated elk incisor. A radiocarbon assay of bone material from the left ilium produced an age of 9700± 250 radiocarbon years: 7750 B.C. (GX-0530).No indications of habitation which might be associated with the burial were located in its immediate vicinity.A reconstruction of the burial ritual is attempted, and the skeletal remains are compared to other early human remains from North America.A summary of this paper was given at the 34th Annual Meeting of the Society for American Archaeology, May 3, 1969, in Milwaukee, Wisconsin.


2021 ◽  
Author(s):  
◽  
Evgeniya Kryssova

<p>The press was at the centre of the reform of the meaning of insanity, during its evolution from an equivocal eighteenth-century concept of melancholia to a medicalised Victorian notion of ‘lunacy’. During the late Georgian era newspapers provided a public forum for the opinion of newly emerging psychiatric practitioners and fostered the fears and concerns about mental illness and its supposed increase. The press was also the main source of news on crime, providing readers with reports on criminal insanity and suicide. In the first half of the nineteenth century, newspaper contents included official legal reports, as well as editorial commentary and excerpts from other publications, and newspaper articles can rarely be traced to one single author. Historians of British insanity avoid consulting periodical literature, choosing to use asylum records and coroners’ reports, as these sources are more straightforward than newspapers. However, Rab Houston’s recent study of the coverage of suicide in the north of Britain shows that the provincial press has been unjustly overlooked and can offer the material for a unique social analysis. Asylum records and coroners’ records do not contain the same detail provided in the press. Newspaper commentary can arguably reveal contemporary attitudes towards insanity and, moreover, sources such as asylum records only deal with the lower-class patients, as the middle- and upper-class insane were usually privately detained.  This thesis examines the press coverage of insanity in Leeds newspapers, and expands on previous research by looking at the way insanity was portrayed in the two most popular publications in the industrial region of Yorkshire: the Leeds Intelligencer and the Leeds Mercury. Chapter one focuses on legal cases that featured a verdict of insanity and explores the language used by the press in the reports of, mainly, violent domestic crime. Chapter two looks at reports of suicide and considers how contemporary views on financial and moral despondency influenced the portrayal of self-murder. Chapter three considers editorial articles that cannot be described as either crime or suicide reports. This chapter uncovers the presence of surprisingly humorous and entertaining articles on insanity found in editorials and the ‘Miscellany’ sections of the newspapers. Ultimately, this thesis argues that the reportage of insanity in the Leeds press was sensational, moralistic and selectively sympathetic; furthermore, such portrayal of insanity was reinforced throughout the body of the paper. Leeds newspapers segregated the insane by adopting a moralising tone and by choosing to use class-specific language towards the insane of different social ranks.</p>


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