Mahbobe Ebadi, Fatemeh Hoseini, Fateme Pahlevan, Mohammad Esmaeilzade Akhoundi, Vahid Farhadi, Roqaye Asqari,
Volume 20, Issue 5 (8-2017)
Abstract
Abstract
Background: The aim of this study was to evaluate the effectiveness of of transcranial direct current stimulation (tDCS) on working memory in patients with major depression.
Materials and Methods: The research method was quasi-experimental with pretest and post-test and follow-up with control group. The research population comprised female outpatient referrals to private psychiatric centers and psychological counseling centers in Tehran in the first half of 2016, They had received a diagnosis of depression by a psychiatrist at least once. Of these, 30 females were selected as a sample group with convenience sampling method and based on the criteria of inclusion and exclusion and were divided randomly into two groups , experimental (n = 15) and control (n = 15) group. The experimental group received transcranial direct current stimulation (tDCS) in 10 sessions, While this intervention was not provided to the control group. The data were collected by N-BACK. Analysis of variance with repeated measurments was used to test the research hypothesis.
Results: The results showed that transcranial direct current stimulation (tDCS) had a significant effect on increasing working memory and the impact will continue to follow up.
Conclusion: Therefore, this approach can be used to improve working memory in people with major depression.
Dr Mehdi Asghari, Dr Gholamabbas Fallah Ghalhari, Dr Marzieh Abbasinia, Dr Farbod Ebadifard Azar, Dr Fahimeh Shakeri, Dr Mohammad Javad Ghanadzade, Mr Gholam Heidar Teimori, Dr Sanaz Karpasand, Dr Hossein Safari,
Volume 26, Issue 3 (August & September 2023)
Abstract
Introduction: One of the biggest environmental challenges of the 21st century is the phenomenon of climate change and global warming, which can cause numerous health problems. One significant health issue associated with climate change is the increase in the prevalence of heat stress, particularly in occupational encounters in hot outdoor environments. So this study aimed to predict and model temperature and humidity indices in the coming decades in a dry climate.
Methods: This study obtained daily atmospheric parameters, including minimum temperature, maximum temperature, and relative humidity of Kerman station, representing a dry climate, for a period of 30 years (1965 to 2005) from the meteorological organization. Modeling of these parameters and calculation of the Temperature and Humidity Index (THI) were performed using the atmospheric general circulation model HadGEM2-ES and the CORDEX dynamic microscaler model. Three different radiative forcing scenarios, including optimistic (RCP 2.6), intermediate (RCP 4.5), and pessimistic (RCP 8.5), were considered for the coming decades (three 30-year periods from 2011 to 2099). The Ethics Committe of Iran University of Medical Sciences (IUMS) approved the present study (Code: IR.IUMS.REC.1400.020).
Results: The results of the study showed an increasing trend for minimum and maximum temperature parameters in all three time periods using the three scenarios considered. Moreover, the increase in temperature in the decades of 2099-2071 was more pronounced compared to the previous decades. The results also demonstrated an increasing trend in the THI index based on all three scenarios. The average results obtained using these scenarios showed an increase of 2.11, 2.53, and 3.3 degrees Celsius, respectively, in this index until the end of the last century compared to the base decades.
Conclusions: Overall, the increase in temperature and the investigated THI index in the studied station, based on all three scenarios, will lead to changes in thermal comfort. Higher levels of thermal discomfort will not only occur in hot months and seasons but also in other seasons. Therefore, proper planning should be implemented to address the adverse effects of climate change on people's health.
