Basic Medicine
Gholam Reza Goodarzi
Abstract
The purpose of this paper was to design a model of key success factors in Taekwondo sport with emphasis on the dimensions of continuous support. The research method was a combination of quantitative and qualitative methods that according to the qualitative method of data collection in the first stage; ...
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The purpose of this paper was to design a model of key success factors in Taekwondo sport with emphasis on the dimensions of continuous support. The research method was a combination of quantitative and qualitative methods that according to the qualitative method of data collection in the first stage; And its validation in the next stage was of the exploratory mixed type. The statistical population of the study was all executive and academic level experts. The sampling method in the qualitative part was initially purposeful and judgmental and then in order to collect information, the snowball sampling method was used. In this study, theoretical saturation was achieved by interviewing 21 of the samples. The data collection tool was in the first stage of the interview and after coding and identifying the themes and indicators, a questionnaire was developed and used to design and validate the model. Data analysis was performed qualitatively using thematic analysis and quantitatively using Demetel technique. The results of content analysis showed that the key factors of success in Taekwondo sport with emphasis on the dimensions of continuous support include four sections: implementation of support programs, grounding in education, supply of hardware, optimization Is nutrition. The results of Demetel analysis showed the appropriate fit of the research model. Also, the quantitative results of the research showed that the identified factors from the perspective of experts for the development of Taekwondo are in a favorable condition. According to the research results, emphasis on continuous support for the development.
Basic Medicine
Roohallah Yousefi; Shahla Mokaramian
Abstract
The coronavirus pandemic, caused by the SARS-CoV-2 virus, has emerged as a significant global threat to all countries and societies. Analyzing infection rates, mortality due to Covid-19, and the impact of vaccination, weather conditions, and demographic and ethnic composition on infection and mortality ...
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The coronavirus pandemic, caused by the SARS-CoV-2 virus, has emerged as a significant global threat to all countries and societies. Analyzing infection rates, mortality due to Covid-19, and the impact of vaccination, weather conditions, and demographic and ethnic composition on infection and mortality rates can provide crucial insights into this disease. SARS-CoV-2, the novel coronavirus causing acute respiratory syndrome, first emerged as a global pandemic in the Chinese city of Wuhan in December 2019. According to the World Health Organization (WHO), there have been 768,237,788 confirmed cases of Covid-19 reported worldwide, resulting in 6,951,677 fatalities as of July 19, 2023. Analyzing various factors like infection rates, mortality, vaccination, weather conditions, and demographics helps us understand the disease better. The United States has the highest COVID-19 death toll, while African countries have reported the lowest. However, Africa's high death-to-infection ratio might be due to inadequate healthcare services and vaccination rates, which require urgent attention. In addition, the relationship between environmental temperatures and COVID-19 cases and mortality is still under investigation.
Clinical Medicine
Ramin Moftian; Fatemeh Mohammadi Parchestani; Alireza Gholami Tilko
Abstract
This research is quasi-experimental and applied and was randomly divided into three groups: aerobics, yoga and control. Subjects in the experimental groups participated in a specific exercise program for 8 weeks, 3 sessions per week and each session for 1 hour. Exercises in the aerobic group included ...
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This research is quasi-experimental and applied and was randomly divided into three groups: aerobics, yoga and control. Subjects in the experimental groups participated in a specific exercise program for 8 weeks, 3 sessions per week and each session for 1 hour. Exercises in the aerobic group included 10 minutes of warm-up, 40 minutes of rhythmic movements and 10 minutes of returning to the original state. Aerobic exercises were performed in the first sessions with an intensity of 55% of maximal reserve heart rate and in the last sessions with an intensity of 75% of maximal reserve heart rate. The exercises in the yoga group included 40 minutes of asana exercises, 10 minutes of Shavasana exercises and 10 minutes of pranayama exercises. The control group did not perform any regular exercise and physical activity during the study and only participated in pre-test and post-test at the beginning and end of the training period. In terms of factors affecting the research variables, such as menstrual cycle regularity, lack of specific diseases not taking drugs, smoking, etc., the subjects had similar and similar conditions. Measurement variables in pre-test and post-test were: body composition aerobic power, blood pressure, heart rate, pulmonary parameters, anaerobic power Leg muscles are flexibility and hand strength. Descriptive and inferential statistics were used to analyze the data.
Basic Medicine
Roohallah Yousefi
Abstract
Introduction: In beta-thalassemia, an imbalance in the production of beta subunits of hemoglobin leads to the oxidation and deposition of excess alpha-globin chains at the cell membrane, resulting in the hemolysis of erythrocytes and a disorder of erythropoiesis. Antioxidants, such as curcumin, may promote ...
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Introduction: In beta-thalassemia, an imbalance in the production of beta subunits of hemoglobin leads to the oxidation and deposition of excess alpha-globin chains at the cell membrane, resulting in the hemolysis of erythrocytes and a disorder of erythropoiesis. Antioxidants, such as curcumin, may promote this progression. This study aims to investigate the antioxidant effect of curcumin on hemolysate samples from patients with beta-thalassemia.Materials and methods: Pure curcumin was extracted and purified for use in studying its effect on the visual light absorbance of hemoglobin in hemolysate samples from beta-thalassemia patients compared to control samples. Changes in light absorbance at 540 and 700 nm wavelengths during exposure to curcumin were analyzed to examine the shift from oxyhemoglobin to deoxyhemoglobin.Results: Curcumin was found to dissolve rapidly and to a high degree in ethanol at 1 mg/ml, but did not dissolve in distilled water at the same concentration. The curcumin addition to the hemolysate sample of a patient with beta-thalassemia resulted in a decrease in the light absorbance of the sample at 540 nm wavelength, with minimal changes observed in the control sample.Conclusion: Curcumin deoxygenated the hemolysate samples from both the patient and control, causing hemoglobin precipitation to occur slowly. The study suggests a greater potential role for curcumin in deoxygenating hemoglobin in the hemolysate samples of beta-thalassemia patients compared to those of the normal control.
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