Showing 7 results for Fat
Mt Ghaneian, Mh Ehrampoush, M Dehvari, M Kheirkhah, F Anvari , M Askarshahi, B Jamshidi,
Volume 14, Issue 1 (5-2015)
Abstract
Introduction: The most important affect of natural organic matters in water is their reaction with chlorine and producing of disinfection byproducts that are carcinogenic. Humic acid is most common natural organic materials of surface water. Advanced oxidation processes (AOPs) are methods for the removal of organics from aqueous solutions. Application of electron beam radiation is one of these methods for water treatment. The aim of this study was to evaluate the efficiency of catalytic oxidation process of electron beam radiation with potassium persulfate in removal of humic acid from aqueous solutions.
Methods: This experimental study was performed in laboratory scale. In this study, effect of pH (4 -10), initial concentration of potassium persulfate (0.1- 0.5 mmol/100cc), different radiation doses of electron beam (1-15 kGy) and the initial concentration of Humic acid (10-50 mg/l) in removal of humic acid were studied. Electron irradiation performed using an electron accelerator model TT200. Residual concentrations of humic acid in the samples determined by spectrophotometer UV/Vis at a wavelength of 254 nm.
Results: Based on the results, changes in pH had little effect on the Humic acid removal efficiency. The average, with increasing of pH from 4 to 10, the removal efficiency of humic acid from 72.59% to 73.36% increased, respectively. The results showed that increasing of the dose from 1 to 15 kGy, humic acid removal efficiency increases. Based on results by increasing of persulfate concentration, the removal efficiency increased so that with increasing of concentration of potassium persulfate from 0.1 to 0.5 mmol/100cc, removal efficiency from 69.43% to 83.82% was increased. Kinetic experiments showed that the decomposition of humic acid by electron beam radiation followed the second-order kinetic.
Conclusion: The data from this study showed that the aqueous solution containing acid Humic is decomposed effectively by electron beams irradiation. Addition of potassium persulfate can be have significant improvements in removal efficiency of humic acid in the presence of electron beam.
P Azad , A Barkhordari , A Choobineh , B Kohnavard , M Barkhordari,
Volume 14, Issue 6 (3-2016)
Abstract
Introduction: Fatigue phenomenon, as an important and unique of living creatures, is certainly experienced by the majority of human in their life. It may cause bad effect on the expected occupational performance of workers including weakness in judgment and decision making, forgetting the details, causes indifference to the essential items and loss of performance. This study was performed to investigate the prevalence of fatigue and its relationship with some demographic variables.
Methods: This present study, as a descriptive cross-sectional, was carried out in 2014, among the workers in the Yazd steel. A sample of 388 workers was selected by random cluster sampling method. A multi-part questionnaire including demographic characteristics and Occupational Fatigue Exhaustion/Recovery Scale were applied. Data were analyzed by SPSS19.
Results: The result of this study showed that most of the subjects have experienced the moderate severity of chronic fatigue but in the intensity of acute fatigue was higher than chronic one. The prevalence of severe acute and chronic fatigue was 30.49% and 55.4%, respectively. There was significant relationship between the fatigue with job history and education level (PV=0.019).
Conclusion: The results of this study indicate the high incidence of fatigue in workers.
A Nadjarzadeh, N , Jani , M Khoshnevisan, A Molajaafari, H Fallahzadeh, F Khabiri , A Shavakhi ,
Volume 14, Issue 6 (3-2016)
Abstract
Introduction: There are evidences that show the effect of vitamin D on obesity. The relationship between vitamin D deficiency and nonalcoholic fatty liver (NAFLD) is under review. The purpose of this study was to investigate the effect of vitamin D supplementation along with a low caloric diet on liver enzymes and anthropometric parameters in NAFLD patients.
Methods: This study is a randomized clinical trial involved 80 NAFLD patients with vitamin D deficiency. Both groups used vitamin D or placebo for 12 weeks, one time a week. Liver enzymes, ultrasound of the liver and bile ducts and anthropometric parameters were measured before and after intervention.
Results: The study was completed by 73 subjects. After 12 weeks, liver enzymes and the degree of fatty liver in the intervention group compared with the placebo group were significantly decreased (P<0.005). About 9 kg of body weight in the intervention group compared to the beginning of the intervention decreased (P<0.005).
Conclusion: Vitamin D supplementation along with a low calorie diet in NAFLD patients with hypovitaminosis D significantly effect on anthropometric factors decrease and liver enzymes and the degree fatty liver improvement.
Mohammadali Morowatisharifabad, Nasrin Mehrjoyn, Azadeh Najarzadeh, Hossein Falahzade,
Volume 16, Issue 6 (3-2018)
Abstract
Introduction: Since different populations have different eating habits and chronic diseases, their fat intake instructions vary. The aim of this study was to examine determinants of fat consumption based on health belief model (HBM) on women's in Yazd city in 2015.
Methods: This cross-sectional study conducted on women in Yazd. The sample size of 203 women who were covered by health centers were selected randomly in two stages. Data were collected by two questionnaires. The first one was a researcher-made questionnaire consisting of: demographic questions and questions related to health belief model constructs, whose validity and reliability were proven. The second questionnaire was a revised version of the 168 item- food frequency questionnaire for the study of Tehran Lipid and Glucose which based on the taste of Yazd people, 10 food items were added. Data analysis was done by using SPSS software using central and spatial indices, Spearman correlation coefficient, linear regression and ANOVA.
Results: The mean score of the HBM constructs including perceived sensitivity, perceived intensity, perceived benefits, perceived barriers, cues to action and self- efficacy were 4.22±14.93 (range 0-32), 3.07±12.02 (range 0-24), 1.79 ± 17.9 (range 0-28), 5.44 ±18.32 (range0 -32), 1.46±3.06 (range0 -11), 4.93±23.16 (range 0-32), respectively. The average daily dietary fat intake and the amount of received calories were 48.62±97.25 grams and 1156.8±2548.61 (Kcal), respectively. Percentage of solid and liquid oil consumption of all consumed oils were21.92±33.94% and 38.5 ±54.33%, respectively. The cholesterol intake average was 149.33±261.42 mg. Based on Logistic regression analysis, none of the health belief model constructs were a strong predictor of fat intake.
Conclusion: Due to the fact that health belief model constructs did not predict fat consumption behavior, it can be concluded that this pattern was not effective in explaining fat consumption behavior and other models can be used.
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Fatemeh Ghorbani, Hassan Navipour, Robabeh Memarian,
Volume 21, Issue 5 (1-2023)
Abstract
Abstract
Introduction: Today, one of the most common health problems in the world is iron deficiency anemia. The present study was conducted with the aim of determining the effect of the family-centered care program on fatigue and depression of teenage girls suffering from iron deficiency anemia. Family-centered care is a method which is controlled through mutually beneficial partnerships between caregivers, patients, and families. Family-centered care is systematically organized in such a way that the dynamics and complexities of different aspects of individuals and families are taken into consideration.
Methods: This was a quasi-experimental and practical study conducted in 2020 in which 70 adolescent girls with iron deficiency anemia studying in high school in Mahmudabad were selected through purposive and convenience sampling. The research tools were the stem fatigue and Beck depression questionnaire. After collecting the information obtained from the pre-intervention stage, the family care program for adolescent girls was conducted in the test group, and the secondary test was performed 3 months after the intervention. In the control group, the questionnaires were evaluated at the beginning, and then 3 months after the training- held in 6 sessions- and the data of the two groups were analyzed using paired t-test and dependent t-test.
Results: The comparison of the total score of fatigue and depression for adolescent girls with iron deficiency anemia before and after the intervention in the test group showed a significant difference regarding decreasing scores (P<0.001); however, there was no significant difference in the control group (P> 0.05). Furthermore, the comparison of the total fatigue scores of adolescent girls with iron deficiency anemia before and after the intervention in the experimental group showed a significant difference in reducing scores (P < 0.001), but in the control group, there was no significant difference (P = 0.182).The comparison of total depression scores of adolescent girls with iron deficiency anemia before and after the intervention in the test group showed a significant difference in reducing scores (P < 0.001), but in the control group, no significant difference was observed (P=0.667).
Conclusions: The results showed that the rate of fatigue and depression in adolescent girls with iron deficiency anemia who receive the family-centered care program has decreased compared to the control group.
Masomeh Nabaei, Zahra Alizadeh Birjandi,
Volume 23, Issue 3 (8-2024)
Abstract
Introduction: A large proportion of the healthcare workforce reports significant distress and burnout, which can lead to poor patient care. Several psychological interventions, one of the psychological interventions is integrated therapy, which can be effective in improving mental fatigue and stress tolerance. So, the purpose of research is to investigate the effectiveness of integrated cognitive-behavioral therapy with acceptance and commitment-based therapy on reduce Psychological Distress and mental fatigue in nurses with burnout symptoms in Imam Reza Hospital in Mashhad city.
Materials and Method: The research was a semi-experimental pre-test-post-test study with a control group. The statistical population was all female nurses working in Imam Reza Hospital which had symptoms of burnout, and so 30 nurses were selected by purposeful sampling considering the inclusion criteria and then randomly divided into an experimental and a control group. Subjects of both groups responded to Meshach Job Burnout Inventory, Smits et al.'s Multidimensional Fatigue Inventory and Kessler Psychological Distress Scale. Before and after the intervention. After the pre-test, therapeutic intervention was provided to the experimental group twice a week for 10 sessions of 45 minutes.
Results: The results showed that there was a significant difference between the two groups after the combined treatment intervention in terms of Psychological Distress and mental fatigue in nurses with signs of job burnout .
Conclusion: suggested to use CBT-ACT in a continuous and regular manner in hospitals and universities in the form of training classes in order to reduce Psychological Distress and mental fatigue and job burnout.
Mehdi Tavallaei, Motahareh Hesaraki, Maryam Seyhoon, Negin Tahvilian, Mahdieh Hosseinzadeh,
Volume 23, Issue 4 (10-2024)
Abstract
Introduction: The present study was conducted with the aim of investigating the effectiveness of acceptance and commitment therapy (ACT) on psychological capital, weight and fat mass of obese women.
Method: This study is a semi-experimental, involving a pre-test and post-test design with a control group. The research population comprised all overweight and obese women living in Yazd in 2021. According to the inclusion criteria, 30 people were selected and randomly replaced in two experimental and control groups (15 people in each group). The research instruments included a demographic information questionnaire, the psychological capital questionnaire, and the ACT treatment protocol. Following the pre-test, subjects in the control group underwent ACT treatment training sessions as the independent variable. The intervention consisted of nine group therapy sessions, each lasting 1.5 hours. Analysis of covariance (ANCOVA) was used to analyze the data.
Results: At the beginning of the research, the average weight in the experimental group was 73.85 kg and in the control group was 74.01 kg. The findings of the research showed that the treatment based on ACT was able to play an effective role in increasing the psychological capital of overweight and obese women in Yazd city (p=0/001). This treatment was also effective in reducing the fat mass and weight of the participants (p=0/001).
Conclusion: According to the results of the present study, it seems that ACT can play an effective role in solving the problems of overweight women and increase their psychological capital and reduce their weight and fat mass.
