scholarly journals INFLUENCE OF GEOMAGNETIC DISTURBANCE ON THE PSYCHOLOGICALSTATE OFTHEINHABITANTS OFTHE N

2021 ◽  
Vol 11 (1) ◽  
pp. 36-39
Author(s):  
Anna Kodochigova ◽  
Svetlana Parshina ◽  
Sergey Samsonov ◽  
Palmira Petrova ◽  
Alena Strekalovskaya ◽  
...  
Keyword(s):  
Computed Radiography ◽  
Geomagnetic Disturbance ◽  
Geomagnetic Disturbances ◽  
Male And Female ◽  
Group I ◽  
Northern Latitudes ◽  
Reactive Anxiety ◽  
Problematic Area ◽  
Psychosomatic Diseases ◽  
Integral Indicator

The aim of the work was to determine the influence of geomagnetic disturbance on the psychoemotional status of residents of polar and Subpolar latitudes. Materials and methods. 44 male and female volunteers with an average age of 49.2 (41.7; 55.4) years, living in auroral and sub – auroral latitudes were examined using tests of Ch. Spielberger-Yu. Hanin, E. Khaimah and psychosomatic techniques. The daily CR index (Computed Radiography) was used as an integral indicator of geomagnetic disturbance. Results. The volunteers were divided into two groups: psychologically sensitive to changes in space weather (I) and-not having such sensitivity (II) (based on the presence or absence of certain coincidences of the peak values of reactive anxiety and the CR index). The groups had an equal number of persons. It was found that the most problematic area of stress-overcoming behavior in both groups was behavioral, the most effective for group I — cognitive, for group II — emotional sphere. Individuals with psychological sensitivity to geomagnetic disturbances were significantly more anxious than those who did not have this sensitivity. Conclusion. Thus, despite the fact that all the inhabitants of the Northern latitudes observed by us were not sufficiently effective in constructing the actual stressovercoming behavior, the risk of developing psychosomatic diseases was higher in the owners of psychological sensitivity to geomagnetic disturbance, taking into account their tendency to suppress emotions and significantly higher anxiety.

ОСОБЕННОСТИ ОТВЕТНОЙ РЕАКЦИИ СЕРДЕЧНО-СОСУДИСТОЙ СИСТЕМЫ НА ГЕОМАГНИТНУЮ ВОЗМУЩЕННОСТЬ НА РАЗЛИЧНЫХ ШИРОТАХ

2020 ◽  
Vol 65 (6) ◽  
pp. 1161-1170
Author(s):  
С.С. Паршина ◽  
◽  
С.Н. Самсонов ◽  
Т.Н. Афанасьева ◽  
П.Г. Петрова ◽  
...  
Keyword(s):  
Healthy Volunteers ◽  
Space Weather ◽  
Emotional State ◽  
Geomagnetic Disturbance ◽  
Geomagnetic Disturbances ◽  
T Wave ◽  
Reactive Anxiety ◽  
The Impact ◽  
The City ◽  
Synchronous Monitoring

This paper describes the principles of multi-latitude monitoring “Heliomed-2” conducted for obtaining new data on the impact of space weather on human health. The paper presents results of synchronous monitoring oriented to the assessment of the response of the cardiovascular system and psycho-emotional state of healthy volunteers to changes in the geomagnetic disturbance at high (Tixie settlement and the city of Yakutsk) and middle (city of Saratov) latitudes. In all the volunteers, the effects of synchronization of ventricular myocardial repolarization processes (according to the data on the symmetry coefficient of the T wave of the electrocardiogram) and geomagnetic disturbance as well as synchronization of reactive anxiety and geomagnetic disturbance were observed. It has been established that regardless of latitude, cardiac sensitivity and psychological sensitivity to geomagnetic disturbances in volunteers from the same group were similar.

Evaluation of the Power Transformer Magnetizing Inrush Currents

2020 ◽  
Vol 10 (10) ◽  
pp. 20-32
Author(s):  
Aleksey A. KUVSHINOV ◽  
◽  
Vera V. VAKHNINA ◽  
Aleksey N. CHERNENKO ◽  
◽  
...  
Keyword(s):  
Power Transformer ◽  
Geomagnetic Disturbance ◽  
Inrush Current ◽  
Geomagnetic Disturbances ◽  
Disturbance Intensity ◽  
Magnetizing Inrush Current ◽  
Inrush Currents ◽  
Instantaneous Values ◽  
The Mathematical Model ◽  
Analytical Expressions

The mathematical model of a shell-core power transformer’s magnetization branch is substantiated. By using the model, analytical expressions for the magnetizing current instantaneous values under the conditions of geomagnetic disturbances can be obtained. Quantitative assessments of the magnetizing inrush current amplitudes and durations versus the geomagnetic disturbance intensity are obtained. The dynamics of the power transformer magnetic system saturation transient and changes in the magnetization inrush current amplitudes and durations after a sudden occurrence of geomagnetic disturbances are shown. The error of estimating the magnetizing inrush current amplitudes under geomagnetic disturbances is determined based on comparison with experimental data.

Death Anxiety and Sexual Fantasy

1977 ◽  
Vol 8 (2) ◽  
pp. 117-127 ◽  
Author(s):  
Robert A. Mednick
Keyword(s):  
Graduate Students ◽  
Death Anxiety ◽  
Anxiety Scale ◽  
Sexual Fantasy ◽  
Sexual Fantasies ◽  
Male And Female ◽  
Group I ◽  
Group Ii

Degree of death anxiety as a function of the frequencies of sexual fantasy was examined. Two groups of volunteer male and female graduate students were administered the Livingston-Zimet “Death Anxiety Scale” (DAS). The ninety-eight members of group I were asked to extemporaneously self-estimate the frequency of sexual fantasies per month, while the thirty-six in group II made actual daily counts of sexual fantasies with the use of wrist counters. Both groups I and II were individually divided into three subgroups as to “high,” “moderate,” and “low” death anxiety by rank-ordered scores on the DAS. Sexual fantasies were examined in three fantasy conditions: “Daydream,” “masturbatory,” and “during sex relations.” Findings from both groups I and II supported the hypothesis that those having “high” and “low” death anxiety will have more frequent sexual fantasies than “moderate” death anxious subjects.

scholarly journals OBESITY

2015 ◽  
Vol 22 (06) ◽  
pp. 683-389
Author(s):  
Faizania Shabbir ◽  
M. Mazhar Hussain ◽  
Tausif Ahmed Rajput
Keyword(s):  
Platelet Count ◽  
Animal Models ◽  
Sprague Dawley ◽  
Immunosorbant Assay ◽  
Male And Female ◽  
Group Iii ◽  
Army Medical ◽  
Medical College ◽  
Group I ◽  
Wbc Count

Objective: To study the effects of atorvastatin administration on serum IL-6,WBC and platelet count in obese male and female animal models. Study Design: Randomizedcontrol trial (RCT). Place and duration of study: The study was conducted at Department ofPhysiology, Army Medical College, Rawalpindi in collaboration with National Institute of Health(NIH), Islamabad and Centre for Research in Experimental and Applied Medicine (CREAM),Army Medical College, Rawalpindi for funding, blood sampling and biochemical assaysrespectively. Material and Methods: Ninety healthy male and female Sprague Dawley ratswere selected and randomly divided into three equal groups. Group I rats were fed normal dietfor a period of three weeks. Group II rats were fed high fat diet for a period of three weeks toinduce obesity. Group III rats were administered atorvastatin 10 mg/kg/day orally by gavagemethod for three weeks after obesity induction. Terminal sampling by intra-cardiac puncturewas done at the end of study. Whole blood was used to perform blood complete picture by KX21 Sysmex Hematology Analyzer which includes platelet count and WBC count and serum wasused to measure IL-6 levels by Enzyme Linked Immunosorbant Assay (ELISA). Results: Therewas a significant decrease (p<0.05) in serum IL-6 levels and WBC count, whereas platelet countwas not significantly (p>0.05) affected by atorvastatin administration. Conclusions: Althoughatorvastatin reduces obesity related inflammation by decreasing serum IL-6 levels and WBCcount, it has no effect on platelet count in male and female obese animal models.

scholarly journals He<sup>+</sup> dominance in the plasmasphere during geomagnetically disturbed periods: 1. Observational results

2002 ◽  
Vol 20 (4) ◽  
pp. 461-470 ◽  
Author(s):  
M. H. Denton ◽  
G. J. Bailey ◽  
C. R. Wilford ◽  
A. S. Rodger ◽  
S. Venkatraman
Keyword(s):  
Geomagnetic Storm ◽  
Plasma Temperature ◽  
Recovery Phase ◽  
Geomagnetic Disturbance ◽  
Topside Ionosphere ◽  
Exchange Reactions ◽  
Geomagnetic Disturbances ◽  
Model Calculations ◽  
Flux Tubes ◽  
F Region

Abstract. Observations made by the DMSP F10 satellite during the recovery phase from geomagnetic disturbances in June 1991 show regions of He+ dominance around 830 km altitude at 09:00 MLT. These regions are co-located with a trough in ionisation observed around 55° in the winter hemisphere. Plasma temperature and concentration observations made during the severe geomagnetic storm of 24 March 1991 are used as a case study to determine the effects of geomagnetic disturbances along the orbit of the F10 satellite. Previous explanations for He+ dominance in this trough region relate to the part of the respective flux tubes that is in darkness. Such conditions are not relevant for this study, since the whole of the respective flux tubes are sunlit. A new mechanism is proposed to explain the He+ dominance in the trough region. This mechanism is based on plasma transport and chemical reaction effects in the F-region and topside ionosphere, and on the time scales for such chemical reactions. Flux tubes previously depleted by geomagnetic storm effects refill during the recovery phase from the ionosphere as a result of pressure differences along the flux tubes. Following a geomagnetic disturbance, the He+ ion recovers quickly via the rapid photoionisation of neutral helium, in the F-region and the topside. The recovery of the O+ and H+ ions is less rapid. This is proposed as a result of the respective charge exchange reactions with neutral atomic hydrogen and oxygen. Preliminary model calculations support the proposed mechanism.Key words. Magnetospheric physics (storms and sub-storms, plasmasphere)

scholarly journals Which Environmental Factor Is Correlated with Long-Term Multiple Sclerosis Incidence Trends: Ultraviolet B Radiation or Geomagnetic Disturbances?

2017 ◽  
Vol 2017 ◽  
pp. 1-11
Author(s):  
Seyed Aidin Sajedi ◽  
Fahimeh Abdollahi
Keyword(s):  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Geomagnetic Disturbance ◽  
Ultraviolet B ◽  
Geomagnetic Disturbances ◽  
Incidence Trends ◽  
Ultraviolet B Radiation ◽  
Cross Correlation Analysis ◽  
Positive Correlations

Background. Insufficient received ultraviolet B radiation (UV) is regarded as the main environmental risk factor (RF) for MS in vitamin D deficiency hypothesis. Nevertheless, geomagnetic disturbance (GMD) has also been proposed as a potential trigger for MS in GMD hypothesis. The aim of this study was to investigate which of these mentioned RF is correlated with long-term ultradecadal MS incidence. Methods. After a systematic search, long-term incidence reports of the United Kingdom (UK), Denmark, Tayside County, Nordland County, the Orkney, and Shetland Islands were selected for this retrospective time-series study. Possible lead-lag relationships between MS incidence, GMD, and UV were evaluated by cross-correlation analysis. Results. Significant positive correlations between GMD and MS incidence were seen in Tayside County (at lag of 2 years: rS = 0.38), Denmark (peak correlation at lag of 2 years: rS = 0.53), and UK (at lag of 1 year: rS = 0.50). We found a positive correlation between received UV and MS incidences in the Nordland at lag of 1 year (rS = 0.49). Conclusion. This study found significant positive correlations between alterations in GMD with alterations in long-term MS incidence in three out of six studied locations and supports the GMD hypothesis. The observed significant correlation between MS and UV is positive; hence it is not supportive for UV related vitamin D deficiency hypothesis.

scholarly journals Some characteristics of social support for patients with depressive disorders

2021 ◽  
Vol 25 (2) ◽  
pp. 325-328
Author(s):  
O. O. Belov ◽  
N. G. Pshuk
Keyword(s):  
Quality Of Life ◽  
Social Support ◽  
Depressive Disorders ◽  
Significant Others ◽  
Psychosocial Adaptation ◽  
Prevention Measures ◽  
Reactive Anxiety ◽  
Low Levels ◽  
Integral Indicator

Annotation. In order to study the features of social support, a survey of 245 patients with depressive disorders was conducted using a multidimensional scale of perception of social support (MSPSS) D. Zimet as modified by V.M. Yaltonsky and N.A. Sirota. Statistical analysis of the data was carried out using the licensed software package Statistica 13 (StatSoft Inc., USA). The Shapiro-Wilk test, the Mann-Whitney test, the nonparametric method of Spearmen’s rank correlations was used at p<0.05. Low levels of social support for patients with depression in general, and from family, friends and significant others, with the highest level of social support patients associate with friends, slightly lower – with family, and the lowest – with significant others. There is a decrease in the level of social support with increasing age of patients, most pronounced in the age group of 45 years and older. Sex-related differences were found: lower levels of social support for men than for women, and greater importance for women from family support, and for men from friends and significant others. The presence of inverse correlations of mostly moderate strength between the level of social support and the severity of psychopathological symptoms, with the closest correlations for hostility (rS=-0.551), depression (rS=-0.541) and reactive anxiety (rS=-0.478), and a direct correlation of mostly moderate strength between the level of social support and the state of psychosocial adaptation (rS=0.441), emotional comfort (rS=0.406), internality (rS=0.378), self-acceptance (rS=0.354), acceptance of others (rS=0.343), indicators of quality of life in areas of subjective wellbeing / satisfaction (rS=0.413), fulfillment of social roles (rS=0.405), external living conditions (rS=0.401) and integral indicator of quality of life (rS=0.443), indicators of hardiness (rS=0.516), including commitment (rS=0.515), control (rS=0.444) and challenge (rS=0.332). The identified patterns should be taken into account in the development of treatment, rehabilitation and prevention measures for patients with depressive disorders.

Effect of Pesticide Indoxacarb on the Thyroid Gland in Swiss Albino Mice

2021 ◽  
pp. 23-30
Author(s):  
Salma Abusrer ◽  
Zainab EL Mabrouk ◽  
Habiba El Jaafari ◽  
Naema Shibani ◽  
Sassia Regeai
Keyword(s):  
Thyroid Gland ◽  
Control Group ◽  
Epithelial Tissue ◽  
Female Group ◽  
Male And Female ◽  
Swiss Albino Mice ◽  
Group I ◽  
Significant Difference ◽  
Albino Mice ◽  
Tsh Levels

Background and objectives: Pesticides play an essential role in crop protection, but their overuse caused environmental pollution and harmful effect on different animal body systems, including the endocrine system. The thyroid gland is one of the homeostatic regulators of metabolic activities, which is affected by the elements of the external environment. There are very limited studies on the effect of indoxacarb on the histological architecture and functions of thyroid gland. Therefore, this study was conducted with the aim of examining functionally and histologically of the thyroid gland exposed to indoxacarb. Method: 24 Swiss albino mice male and female were randomly divided into two groups, each group male and female; group I is a control group given orally with 1ml of distilled water and group II orally treated with 120 mg/kg Bw. of indoxacarb daily for 3 weeks. Blood samples were collected from each mouse under anesthetic to determine the thyroid-stimulating hormone (TSH), thyroxine (T4) levels. Thyroid gland histopathology was attained for the evaluation of the indoxacarb effect. Results: The treated mice showed non-significant increase in T4 levels and a significant decrease in TSH levels but there was no significant difference recorded in T4 and TSH levels between sexes. Histologically, the sections of the thyroid gland of the treated group showed empty and irregular follicles, degeneration of the follicular epithelial tissue, and hyperplasia in the lining of some follicles, the capsule with congestion blood vessels. Conclusion: This study concluded that indoxacarb may act as a thyroid gland toxicant.

Morphological variation associated with the environment in four dioecious Patagonian Poa species: the Poa rigidifolia complex

1996 ◽  
Vol 74 (5) ◽  
pp. 762-772 ◽  
Author(s):  
Liliana Mónica Giussani ◽  
Marta Beatriz Collantes ◽  
Arturo José Martinez
Keyword(s):  
Environmental Variability ◽  
Experimental Studies ◽  
Taxonomic Rank ◽  
Cophenetic Correlation ◽  
Male And Female ◽  
Blade Thickness ◽  
Group I ◽  
Stomata Size ◽  
Blade Width ◽  
Cophenetic Correlation Coefficient

A numerical taxonomic analysis was carried out on male and female plants of four Patagonian native Poa species: Poa rigidifolia Steud., Poa ibari Phil., Poa dusenii Hack., and Poa spicaeformis (Steud.) Hauman et Parodi, collected at the Province of Santa Cruz, Argentina. Because of the clear dimorphism found between sexes, morphological analysis was performed separately on male and female specimens. Only two possible taxa that are strongly associated with a pattern of environmental variability were recognized: group I, formed by specimens from subhumid localities, and group II made up by those from xeric localities. Comparison between male and female classifications showed little agreement in terms of cophenetic correlation coefficient. Female groups were mainly separated by the position of hairs on the floret, blade thickness, sheath length, and stomata size. On the other hand, male groups were not so conspicuous and could be distinguished by anther size, spikelet length, number of flowers per spikelet, and blade width. Morphological female variation partially agreed with a former classification. As a result of this study, the four species were grouped into the P. rigidifolia complex until further experimental studies confirm their taxonomic rank. Keywords: dioecious, Poa, numerical taxonomy, ecotypes, environmental variability.

scholarly journals The influence of geomagnetic activity on mesospheric summer echoes in middle and polar latitudes

2009 ◽  
Vol 27 (2) ◽  
pp. 831-837 ◽  
Author(s):  
O. Zeller ◽  
J. Bremer
Keyword(s):  
Geomagnetic Activity ◽  
Geomagnetic Disturbance ◽  
Data Sets ◽  
Observation Data ◽  
Geomagnetic Disturbances ◽  
Vhf Radar ◽  
Mean Values ◽  
Surprising Effect ◽  
Radar Echoes ◽  
Summer Echoes

Abstract. The dependence of mesospheric VHF radar echoes during summer months on geomagnetic activity has been investigated with observation data of the OSWIN radar in Kühlungsborn (54° N) and of the ALWIN radar in Andenes (69° N). Using daily mean values of VHF radar echoes and of geomagnetic activity indices in superimposed epoch analyses, the comparison of both data sets shows in general stronger radar echoes on the day of the maximum geomagnetic activity, the maximum value one day after the geomagnetic disturbance, and enhanced radar echoes also on the following 2–3 days. This phenomenon is observed at middle and polar latitudes and can be explained by precipitating particle fluxes during the ionospheric post storm effect. At polar latitudes, the radar echoes decrease however during and one day after very strong geomagnetic disturbances. The possible reason of this surprising effect is discussed.

Sign in / Sign up

Export Citation Format

Share Document