scholarly journals Occupational Exposure to Steady Magnetic Fields and Mental Health of workers at the Copper Electrolysis Unit

2015 ◽  
Vol 1 (2) ◽  
pp. 1 ◽  
Author(s):  
Mohammad Reza Ghotbi ◽  
Hossein Mardi ◽  
Narges Khanjani ◽  
Nooshin Parvaresh
Keyword(s):  
Magnetic Field ◽  
Mental Health ◽  
Magnetic Fields ◽  
General Health Questionnaire ◽  
Exposed Group ◽  
Chi Square ◽  
Cross Sectional ◽  
Steady Magnetic Field ◽  
The Mean ◽  
The Difference

<p><strong>Background: </strong>There are a few studies about the health effects of steady magnetic fields. This study was performed in order to evaluate some of the mental effects of exposure to steady magnetic fields in the copper electrolysis unit.<strong></strong></p><p><strong>Methods: </strong>This cross-sectional descriptive and analytical study was performed at the electrolysis unit of a Copper Complex in Kerman Province in 2013. The populations under study were ninety workers exposed to steady magnetic fields chosen as the exposed group and 90 workers without exposure chosen from the concentration unit and similar to the exposure group in regard to working conditions. The intensity of steady magnetic field was measured in different parts of the saloon and in the head, waist and feet position. Measuring mental signs was performed by the General Health Questionnaire GHQ-28. Data analysis was performed through SPSS19 and the Mann-Whitney U, one way ANOVA, Chi-square test and Regression analysis was used.</p><p><strong>Results: </strong>In this study the mean intensity of the steady magnetic field in the exposed group was 2.5 mT. The mean rank of mental health in the exposed group was 102.04 and in the unexposed group was 78.96 and the difference was statistically significant (p=0.003). Also there were statistical differences between the two groups in anxiety and sleep disorder (p=0.001) and depression (p=0.007) dimensions.</p><p><strong>Conclusion: </strong>It appears that exposure to static magnetic fields can cause psychological complications. Therefore, more research is recommended to improve the safety of workers exposed to these fields.<strong></strong></p>

scholarly journals The relationship of mental health with resilience among psychiatric nurses

2018 ◽  
Author(s):  
Fazel Dehvan ◽  
Peyman Kamangar ◽  
Shono Baiezeedy ◽  
Daem Roshani ◽  
Reza Ghanei- Gheshlagh
Keyword(s):  
Mental Health ◽  
Linear Regression Analysis ◽  
General Health Questionnaire ◽  
Multiple Linear Regression Analysis ◽  
Psychiatric Nurses ◽  
Cross Sectional ◽  
Point Increase ◽  
The Mean ◽  
Relationship Of ◽  
The Relationship

Background & Aim: Psychiatric wards are stressful environments. Resilience can help psychiatric nurses cope with their occupational stress. The aim of the study was to examine the relationship of mental health with resilience among psychiatric nurses. Materials & Methods: This cross-sectional descriptive-correlational study was conducted in 2017 on a sample of sixty nurses purposively recruited from all wards of Qods psychiatric hospital, Sanandaj, Iran. Study data were collected using a demographic questionnaire, the 28-item General Health Questionnaire, and the 25-item Connor-Davidson Resilience Scale. The data were analyzed via the SPSS software v. 16.0 through conducting the independent-sample t test, the one-way analysis of variance, and the multiple linear regression analysis. The level of significance was set at less than 0.05. Results: In total, sixty psychiatric nurses (34 males and 26 females) with a mean age of 33.23±5.45 participated in this study. The mean scores of their mental health and resilience were 57.35±11.12 and 63.9±14.05, respectively. Resilience had significant relationships with age (0.025), marital status (P = 0.013), and work shift (P = 0.005). Moreover, among the subscales of mental health, only the mean score of the anxiety and insomnia subscale had significant relationship with resilience, so that each one point increase in the mean score of this subscale was associated with a 1.029-point increase in the mean score of resilience (P = 0.036). Conclusion: Psychiatric nurses’ resilience can be promoted through managing their stress and promoting their mental health.

scholarly journals Is There Any Relationship between Mental Health and Driving Behavior of Taxi Drivers in Kerman?

2016 ◽  
Vol 9 (2) ◽  
pp. 294 ◽  
Author(s):  
Somayeh Noori Hekmat ◽  
Reza Dehnavieh ◽  
Saeed Norouzi ◽  
Ebrahim Bameh ◽  
Atousa Poursheikhali
Keyword(s):  
Mental Health ◽  
Data Analysis ◽  
General Health Questionnaire ◽  
Driving Behavior ◽  
Financial Loss ◽  
Mental Health Score ◽  
Chi Square ◽  
Cross Sectional ◽  
Taxi Drivers ◽  
Health Score

<p>Traffic accidents are the main reason of disability and the second reason of mortality in Iran. Therefore finding out the effective factors is vital. The aim of this study is to examine the relationship between mental health and taxi drivers’ behavior in Kerman. This is a cross-sectional descriptive research in which Manchester driving behavior questionnaire (MDBQ) and “general health questionnaire (GHQ)” were used. The questionnaires were distributed between 186 taxi drivers during February and March 2015. Our study was conducted in the province of Kerman in the east south of Iran. We used descriptive methods as well as t-tests, chi-square tests, and logit models for data analysis. The data analysis showed that the driving behavior of Kermanian taxi drivers is good (0.481±4.13) and the mental health situation of them is partly good (0.662±3.61). The Pearson’s correlation test showed overall driving behavior score is correlated positively with mental health score (r=0.83, P=0.000). Also there were positive correlations between all driving behavior dimensions and mental health dimensions at a level of significance of 0.005. The result of Chi-Square Test showed that there the younger drivers and who had less driving experience had higher mental health score. Single drivers and who had less education, which had faced with financial loss in their previous accidents, which had lose their driving license for a while, higher driving behavior score compared to the others (P&lt;0.05). By some improvement actions in driver’s mental health, we can effect on their behavior. And by proper driving behaviors, we can avoid from some mortalities, disabilities and heavy costs on society.</p>

Germination and initial growth of triticale seeds under stationary magnetic fields

2014 ◽  
Vol 2 (2) ◽  
pp. 72-79 ◽  
Author(s):  
Mercedes Florez ◽  
Elvira Martinez ◽  
Victoria Carbonell
Keyword(s):  
Magnetic Field ◽  
Magnetic Fields ◽  
Seed Vigor ◽  
Initial Growth ◽  
Practical Application ◽  
Biochemical Processes ◽  
Mean Germination Time ◽  
Nutrition Value ◽  
The Mean ◽  
Growth Of Seedlings

The main objective of this study is to determine the effects of 125 mT and 250mT magnetic treatment on the germination and initial growth of triticale seeds. This objective has a practical application in agriculture science: early growth of triticale. An increase in the percentage and rate of germination of seeds and a stimulation of growth of seedlings as positive response to magnetic field treatment in rice, wheat, maize and barley seeds have been found in previous studies. Germination tests were carried out under laboratory conditions by exposing triticale seeds to magnetic field for different times. The effect was studied by exposure of seeds prior sowing. The mean germination time were reduced for all the magnetic treatments applied. Most significant differences were obtained for time of exposure of 1 and 24 hours and maximum reductions was 12%. Furthermore, seedlings from magnetically treated seeds grew taller than control. The longest mean total length was obtained from seedlings exposed to 125 and 250 mT for 24 hours. External magnetic fields are assumed to enhance seed vigor by influencing the biochemical processes by stimulating activity of proteins and enzymes. Numerous studies suggested that magnetic field increases ions uptake and consequently improves nutrition value.

Quality of life in Hungarian polio survivors

2021 ◽  
Author(s):  
Erika Viktória Miszory ◽  
Melinda Járomi ◽  
Annamária Pakai
Keyword(s):  
Quality Of Life ◽  
Mental Health ◽  
Sample Selection ◽  
Cross Sectional Study ◽  
Two Dimensions ◽  
Cross Sectional ◽  
Emotional Role ◽  
The Difference ◽  
Polio Survivors

Abstract Aim The number of Hungarian polio patients can be estimated at approximately 3000. Polio infection is currently affecting people 56–65 years of age. The aim of the study was to reveal the quality of life of patients living with polio virus in Hungary. Subject and methods The quantitative cross-sectional study was conducted in January–April 2017 among polyomyelitis patients living in Hungary. In the non-random, targeted, expert sample selection, the target group was composed of patients infected with poliovirus (N = 268). We have excluded those who refused to sign the consent statement. Our data collection method was an SF-36 questionnaire. Using the IBM SPSS Statistics Version 22 program, descriptive and mathematical statistics (χ2-test) were calculated (p < 0.05). Results The mean age of the members of the examined population is 63.5 years; 68.1% were women and 31.90% were men. The majority of the respondents were infected by the polyovirus in 1956 (11.9%), 1957 (24.3%), and 1959 (19.5%). Polio patients, with the exception of two dimensions (mental health, social operation), on the scale of 100 do not reach the “average” quality of life (physical functioning 23 points, functional role 36 points, emotional role 47 points, body pain 48 points, general health 42 points, vitality 50 points, health change 31 points). Conclusion The quality of life of polio patients is far below the dimensions of physical function, while the difference in mental health compared to healthy people is minimal. It would be important to educate health professionals about the existing disease, to develop an effective rehabilitation method.

Effect of Magnetic Fields on the Resistance and Microstructure of Al-Cu Alloy during Solidification Processing

2011 ◽  
Vol 287-290 ◽  
pp. 2916-2920
Author(s):  
Chun Yan Ban ◽  
Peng Qian ◽  
Xu Zhang ◽  
Qi Xian Ba ◽  
Jian Zhong Cui
Keyword(s):  
Magnetic Field ◽  
Magnetic Fields ◽  
Turning Points ◽  
Probe Method ◽  
Solidification Processing ◽  
Ac Magnetic Field ◽  
Dc Magnetic Field ◽  
Cu Alloy ◽  
The Difference ◽  
Good Agreement

The resistance of Al-21%Cu alloy under no magnetic field, DC magnetic field and AC magnetic field from liquid to solid was measured by a four-probe method. The difference of resistance versus temperature curves (R-T curves) was analyzed. It is found that the R-T curves of Al-21%Cu alloy are monotone decreasing and have two obvious turning points. Under DC magnetic field, the liquidus and solidus temperatures of the alloy both decrease, while under AC magnetic field, the liquidus and solidus temperatures both increase. There is a good agreement between the microstructure of quenching sample and R-T curves. The mechanism of the effect of magnetic fields was discussed.

scholarly journals Meaningful activities during COVID-19 lockdown and association with mental health in Belgian adults

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Cruyt Ellen ◽  
De Vriendt Patricia ◽  
De Letter Miet ◽  
Vlerick Peter ◽  
Calders Patrick ◽  
...  
Keyword(s):  
Mental Health ◽  
General Health Questionnaire ◽  
Health Condition ◽  
Daily Activities ◽  
The Internet ◽  
Cross Sectional ◽  
Daily Lives ◽  
Living Space ◽  
Resilience Scale

Abstract Background The spread of COVID-19 has affected people’s daily lives, and the lockdown may have led to a disruption of daily activities and a decrease of people’s mental health. Aim To identify correlates of adults’ mental health during the COVID-19 lockdown in Belgium and to assess the role of meaningful activities in particular. Methods A cross-sectional web survey for assessing mental health (General Health Questionnaire), resilience (Connor-Davidson Resilience Scale), meaning in activities (Engagement in Meaningful Activities Survey), and demographics was conducted during the first Belgian lockdown between April 24 and May 4, 2020. The lockdown consisted of closing schools, non-essential shops, and recreational settings, employees worked from home or were technically unemployed, and it was forbidden to undertake social activities. Every adult who had access to the internet and lived in Belgium could participate in the survey; respondents were recruited online through social media and e-mails. Hierarchical linear regression was used to identify key correlates. Results Participants (N = 1781) reported low mental health (M = 14.85/36). In total, 42.4% of the variance in mental health could be explained by variables such as gender, having children, living space, marital status, health condition, and resilience (β = −.33). Loss of meaningful activities was strongly related to mental health (β = −.36) and explained 9% incremental variance (R2 change = .092, p < .001) above control variables. Conclusions The extent of performing meaningful activities during the COVID-19 lockdown in Belgium was positively related to adults’ mental health. Insights from this study can be taken into account during future lockdown measures in case of pandemics.

A cross sectional study: The association between sleeping quality and stress among second and third medical students at the University of Jordan

2021 ◽  
pp. 009121742110112
Author(s):  
AA Toubasi ◽  
BR Khraisat ◽  
RB AbuAnzeh ◽  
HM Kalbouneh
Keyword(s):  
Logistic Regression ◽  
Medical Students ◽  
Cross Sectional Study ◽  
Regular Exercise ◽  
Sectional Study ◽  
Chi Square ◽  
Cross Sectional ◽  
The Mean ◽  
University Of Jordan ◽  
The University

Objective Medicine is considered one if not the most stressful educational field. Thus, the aim of this study is to investigate the prevalence of stress and poor sleeping quality among medical students and the association between them. Method This cross-sectional study was conducted at the University of Jordan on second- and third-year medical students. The questionnaire consisted of: 1) Demographics; 2) The assessment tools which were Pittsburgh Quality of Sleep Index (PSQI) and Kessler Psychological Distress Status (K10). Binary logistic regression, chi-square and linear regression were used to investigate the association between PSQI, K10, and their determinants. Results The mean for PSQI score was 6.76 ± 3.32. PSQI scores interpretation revealed that 61.7% of the 282 participants of this study were poor sleepers. Logistic regression results showed that only the category of not napping at all from the napping hours variable was significantly associated with sleeping quality. Furthermore, the mean of K10 scores was 24.5 ± 8.5. K10 scores revealed that 66.3% of the participants were stressed. Logistic regression results showed that gender and regular exercise were significantly associated with psychological distress. Additionally, chi-square test, logistic regression and linear regression showed that PSQI was significantly associated with K10 (P <0.01). Conclusions Stress and poor sleeping quality in medical students at the University of Jordan were highly prevalent and strongly associated. What determined PSQI was daytime napping, and for K10 were regular exercise and gender. Further investigations into stress and sleep quality in the Arabian region are needed.

scholarly journals Optical Imaging of Magnetic Particle Cluster Oscillation and Rotation in Glycerol

2021 ◽  
Vol 7 (5) ◽  
pp. 82
Author(s):  
River Gassen ◽  
Dennis Thompkins ◽  
Austin Routt ◽  
Philippe Jones ◽  
Meghan Smith ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Magnetic Fields ◽  
Magnetic Particles ◽  
Magnetic Particle ◽  
Barium Hexaferrite ◽  
Optical Microscope ◽  
Simplified Model ◽  
Particle Cluster ◽  
Average Deviation ◽  
Cross Sectional

Magnetic particles have been evaluated for their biomedical applications as a drug delivery system to treat asthma and other lung diseases. In this study, ferromagnetic barium hexaferrite (BaFe12O19) and iron oxide (Fe3O4) particles were suspended in water or glycerol, as glycerol can be 1000 times more viscous than water. The particle concentration was 2.50 mg/mL for BaFe12O19 particle clusters and 1.00 mg/mL for Fe3O4 particle clusters. The magnetic particle cluster cross-sectional area ranged from 15 to 1000 μμm2, and the particle cluster diameter ranged from 5 to 45 μμm. The magnetic particle clusters were exposed to oscillating or rotating magnetic fields and imaged with an optical microscope. The oscillation frequency of the applied magnetic fields, which was created by homemade wire spools inserted into an optical microscope, ranged from 10 to 180 Hz. The magnetic field magnitudes varied from 0.25 to 9 mT. The minimum magnetic field required for particle cluster rotation or oscillation in glycerol was experimentally measured at different frequencies. The results are in qualitative agreement with a simplified model for single-domain magnetic particles, with an average deviation from the model of 1.7 ± 1.3. The observed difference may be accounted for by the fact that our simplified model does not include effects on particle cluster motion caused by randomly oriented domains in multi-domain magnetic particle clusters, irregular particle cluster size, or magnetic anisotropy, among other effects.

THE STUDY OF THE MAGNETIC BREAKDOWN EFFECT AS A FUNCTION OF ANGLE IN THE ORGANIC CONDUCTOR K- (BEDT-TTF)2Cu(NCS)2 IN HIGH MAGNETIC FIELDS

2002 ◽  
Vol 16 (20n22) ◽  
pp. 3355-3359
Author(s):  
I. MIHUT ◽  
C. C. AGOSTA ◽  
C. H. MIELKE ◽  
M. TOKOMOTO
Keyword(s):  
Magnetic Field ◽  
Magnetic Fields ◽  
Spin Splitting ◽  
High Magnetic Fields ◽  
Organic Conductor ◽  
Cross Sectional ◽  
Tank Circuit ◽  
Quantum Oscillations ◽  
Magnetic Breakdown ◽  
Splitting Factor

The magnetic breakdown effect can be seen by the growth of new frequencies in the quantum oscillations in clean metals as a function of magnetic field. We have studied the variation of the amplitudes in the quantum oscillations in the resistance (the Shubnikov-de Haas effect) as a function of angle in the quasi-two dimensional-organic conductor κ-(BEDT-TTF)2Cu(NCS)2. The measurements were made by means of a radio frequency (rf) tank circuit (~ 50 MHz) at very high magnetic fields(50T-60T) and low temperature(500 mK). The geometry of the rf excitation we used excited in-plane currents, and therefore we measured the in-plane resistivity. In contrast to conventional transport measurements that measure the inter-plane resistivity, the in-plane resistivity is dominated by the magnetic breakdown frequencies. As a result we measured much higher breakdown frequency amplitudes than conventional transport experiments. As is expected, the angular dependence of the Shubnikov-de Haas frequencies have a 1/cosθ behavior. This is due to the change of the cross sectional area of the tubular Fermi surface as the angle with respect to the magnetic field is changed. The amplitude of the oscillations changes due to the spin splitting factor which takes into account the ratio between the spin splitting and the energy spacing of the Landau levels which also has 1/cosθ behavior. We show that our data agree with the semi-classical theory (Lifshitz-Kosevich formula).

Relationship Between Sexual Satisfaction and Mental Health in Married Older Women

2021 ◽  
Vol 30 (1) ◽  
pp. 14-27
Author(s):  
Elahe Abdollahi ◽  
◽  
Somayyeh Shokrgozar ◽  
Mahboobe Sheerojan ◽  
Mahboobe Golshahi ◽  
...  
Keyword(s):  
Mental Health ◽  
Older Women ◽  
Sexual Satisfaction ◽  
General Health Questionnaire ◽  
Cluster Sampling ◽  
Cross Sectional ◽  
Number Of Children ◽  
Mental Problems ◽  
Rural Health Centers ◽  
Cross Sectional Design

Background: The aging population is increasing rapidly; therefore, paying attention to the needs of older people is necessary. Sexual satisfaction, which is needed to feel happy, is often neglected in older women. Objective: This study aims to evaluate the relationship between sexual satisfaction and mental health in older women. Materials and Methods: In this analytical study with a cross-sectional design, 195 married women aged ≥60 years covered by urban and rural health centers of Guilan, Iran were recruited using a cluster sampling method. A demographic form, the 28-item General Health Questionnaire (GHQ-28) and a Sexual Satisfaction Questionnaire were completed by participants and collected data were analyzed in SPSS v. 22 software using descriptive statistics (frequency, mean, standard deviation, median), and Mann-Whitney U, Kruskal-Wallis and Spearman correlation tests. Results: There was a significant relationship between sexual satisfaction and mental health in older women (P<0.0001). 51.2%, 27.7% and 21.08% of participants had low, moderate and high sexual satisfaction, respectively. Sexual satisfaction was directly related to monthly income (P<0.0001) and women’s and their husbands’ education (P<0.0001 and 0.006) while it was inversely related to physical illness (P=0.030), medication use (P=0.009), age (P<0.0001), number of children (P=0.022), and duration of marriage (P<0.0001). The median score of mental health in participants was 38 (ranging 24-53) and the percentage of participants with mental problems (79.4%) was higher than those without mental problems (20.6%). Conclusion: Mental health and sexual satisfaction in older women are directly related to each other; therefore, providing effective and appropriate sexual care programs is recommended for them.

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