This study investigated the concerns and awareness of people in Kermanshah when haze and dust storms occur and also discussed the people’s performance during occurring and diffusion of this phenomenon. This descripti...This study investigated the concerns and awareness of people in Kermanshah when haze and dust storms occur and also discussed the people’s performance during occurring and diffusion of this phenomenon. This descriptive-analytic study was done by component questionnaire and its sustainability and validity have been verified. The sample size of the statistical population of Kermanshah was selected as 400 people while it was considered that the population of the city was approximately 1 million people. The results showed that 77% of the participants in the study suffered from respiratory problems when the haze occurred. A total of 85.5% of the respondents in the present study believed that the precipitation rate had a direct effect to reduce haze. Also, 85% of the people with heart disorder had health problems during the haze. 63.3% of all participants had to use medical services when the haze occurred. However, 77.3% of participants were unaware of the necessary actions of the authorities when the haze occurred. Most of the studied people acknowledged that they obtained information about the negative effects of dust storms and the methods of reducing the effects to their health through broadcasting.展开更多
Although there is no consensus with respect to that if exposed Extremely Low Frequency Magnetic Field (ELF-MF) affects human brain activity for guidelines of brain management, there are some evidences related with hum...Although there is no consensus with respect to that if exposed Extremely Low Frequency Magnetic Field (ELF-MF) affects human brain activity for guidelines of brain management, there are some evidences related with human attention changes. Therefore, this study evaluates the effects of 45 Hz sinusoidal ELF (360 μT) at Cz regions, cantered at dominant frequency using Electroencephalogram (EEG) analysis. The purpose was to extracte transient or permanent events as an index for new neurofeedback (NF) system improvement. Twenty-four healthy volunteers aged between 20 and 28 years of age were randomly assigned to one of two groups, which differed in the type of NF training concerning the exposed and non-exposed magnetic field effect on performance in attention tests during NF. Results indicate that theta and beta EEG rhythms variations in exposed group changed more significantly in comparison of traditional NF展开更多
文摘This study investigated the concerns and awareness of people in Kermanshah when haze and dust storms occur and also discussed the people’s performance during occurring and diffusion of this phenomenon. This descriptive-analytic study was done by component questionnaire and its sustainability and validity have been verified. The sample size of the statistical population of Kermanshah was selected as 400 people while it was considered that the population of the city was approximately 1 million people. The results showed that 77% of the participants in the study suffered from respiratory problems when the haze occurred. A total of 85.5% of the respondents in the present study believed that the precipitation rate had a direct effect to reduce haze. Also, 85% of the people with heart disorder had health problems during the haze. 63.3% of all participants had to use medical services when the haze occurred. However, 77.3% of participants were unaware of the necessary actions of the authorities when the haze occurred. Most of the studied people acknowledged that they obtained information about the negative effects of dust storms and the methods of reducing the effects to their health through broadcasting.
文摘Although there is no consensus with respect to that if exposed Extremely Low Frequency Magnetic Field (ELF-MF) affects human brain activity for guidelines of brain management, there are some evidences related with human attention changes. Therefore, this study evaluates the effects of 45 Hz sinusoidal ELF (360 μT) at Cz regions, cantered at dominant frequency using Electroencephalogram (EEG) analysis. The purpose was to extracte transient or permanent events as an index for new neurofeedback (NF) system improvement. Twenty-four healthy volunteers aged between 20 and 28 years of age were randomly assigned to one of two groups, which differed in the type of NF training concerning the exposed and non-exposed magnetic field effect on performance in attention tests during NF. Results indicate that theta and beta EEG rhythms variations in exposed group changed more significantly in comparison of traditional NF
