scholarly journals Evaluation of Genetic Diversity of Morpho-physiological Characteristics Related to Yield and Yield Components in some of Iranian Wheat Native Populations

2018 ◽  
Vol 15 (2) ◽  
pp. 265-274
Author(s):  
Mehdi Mahmoudi ◽  
Habibollah Ghazvini ◽  
Ali Barati

The study of the relationships between the yield components can help to understand the physiological basis of crop yields. This research was conducted to investigate the genetic diversity of 168 Iranian wheat populations from the aspect of morpho-physiological characteristics in the Grain and Plant Improvement Institute research center in Karaj. In order to calculate the error and correct the collected data, four wheat cultivars of Sivand, Pishtaz, Pishgam, and Sirvan with three replications were used as control groups. The control group was cultivated based on augmented design and genotypes were placed in separate blocks among the control groups. The treatments and control groups were divided into three blocks and each block containing 60 plots which were planted on one-meter beds and the spacing between each plot from other plot was considered 62 cm. The necessary measurements and samples of the movement were collected systematically and by observationally method and sampling from the statistical population of each plot. Data analysis, statistical analyzes of multivariate data including cluster analysis based on multivariate analysis such as principal component analysis (PCA) and simple correlation analysis between characteristics (Pearson) are done using statistical software SPSS and SAS.

Nukleonika ◽  
2014 ◽  
Vol 59 (3) ◽  
pp. 111-120 ◽  
Author(s):  
Ali Khuder ◽  
Mohammad Adel Bakir ◽  
Reem Hasan ◽  
Ali Mohammad ◽  
Khozama Habil

Abstract The aim of this study was to determine the concentration of Fe, Ni, Cu, Zn and Pb in scalp hair of leukaemia patients and healthy volunteers, using the optimised XRF method. Leukaemia hair samples were classifi ed corresponding to type, growth and age of the participants. The results showed that the studied trace elements (TEs) in both of leukaemia and control groups were positively skewed. In comparison with the control group, lower Fe, Cu, Zn and Pb and higher of Ni medians were found in all studied leukaemia patients. The median rank obtained by Mann-Whitney U-test revealed insignifi cant differences between the leukaemia patients subgroups and the controls. An exact probability (α < 0.05) associated with the U-test showed signifi cant differences between medians in leukaemia patients and controls groups for Pb (lymphatic/control, acute/control), Cu (lymphatic/control, chronic/control), Ni (lymphatic/control, chronic/control) and Fe (chronic/control). Very strong positive and negative correlations (r > 0.70) in the scalp hair of control group were observed between Ni/Fe-Ni, Cu/Fe-Cu, Zn/Fe-Zn, Pb/Fe-Pb, Cu/Ni-Zn/Ni, Cu/Ni-Pb/Ni, Zn/Ni-Pb/Ni, Zn/Fe-Zn/Cu, Pb/Ni-Ni and Ni/Fe-Pb/Ni, whereas only very strong positive ratios in the scalp hair of leukaemia patients group were observed between Ni/Fe-Ni, Cu/Fe-Cu, Zn/Fe-Zn and Pb/Fe-Pb, all correlations were signifi cant at p < 0.05. Other strong and signifi cant correlations were also observed in scalp hair of both groups. Signifi cant differences between grouping of studied TEs in all classifi ed leukaemia groups and controls were found using principal component analysis (PCA). The results of PCA confi rmed that the type and the growth of leukaemia factors were more important in element loading than the age factor.


2021 ◽  
Vol 13 (2) ◽  
Author(s):  
Hamideh Iri ◽  
Behnam Makvandi ◽  
Saeed Bakhtiarpour ◽  
Fariba Hafezi

Background: Divorce is one of the most stressful life events leading to increased susceptibility to diseases and mood disorders such as hypochondriasis. Objectives: The present study aimed to investigate the effectiveness of acceptance and commitment therapy (ACT) on hypochondriasis and psychosocial adjustment in divorced women in Tehran. Methods: The research method was quasi-experimental with a pretest-posttest design and a control group. The statistical population in this study consisted of divorced women suffering from divorce-induced psychological distress who visited counseling centers in Tehran in 2018. The sample consisted of 30 divorced women selected by convenience sampling method. The participants were randomly divided into experimental and control groups (n = 15 per group), and the pretest was performed for the experimental and control groups before the intervention program. The experimental group underwent ten sessions of ACT (90-minute sessions per week), and the control group did not receive any treatment. The research instruments included the Health Anxiety Inventory (HAI) and the Psychosocial Adjustment to Illness Scale (PAIS). The Shapiro-Wilk test, Levene test, Pearson correlation coefficient, and analysis of covariance (ANCOVA) were used to analyze the data. Results: The results indicated that the ACT-based intervention significantly reduced hypochondriasis in divorced women (P = 0.043). In addition, ACT improved the psychosocial adjustment in these women (P = 0.0001). Conclusions: This intervention decreased anxiety under difficult conditions and also improved psychosocial adjustment in divorced women. Therefore, ACT can be used as an effective approach in reducing social and interactional problems and also anxiety in divorced women.


2019 ◽  
Vol 7 (3) ◽  
pp. 75-82
Author(s):  
Saeideh Mansoori ◽  
Arash Mohagheghi ◽  
Akram Rezvanizadeh ◽  
Alireza Karimpour-Vazifehkhorani ◽  
Javad Kazemi ◽  
...  

Introduction: The purpose of the present study was to investigate the effectiveness of group counseling based on self-knowledge sources in increasing assertiveness of male addicts in rehabilitation program. Methods: This was an experimental study and the statistical population included individuals being rehabilitated in the center of dependence to drugs in Razi Psychiatric Hospital in Tehran, Iran. Thirty individuals were selected through targeted sampling and assigned to experimental and control groups. Random assignment was used to control the disturbing variables. Ten group counseling sessions were conducted based on the theory of self-recognition sources for the experimental group and after the end of the study, the control group was also intervened to observe ethical considerations. Results: To analyze the results at the descriptive level, the mean and standard deviation (SD) and at the level of inferential statistics, the t-test (t-difference) were used to compare the scores of self-expression of the experimental and control groups. The analysis of the results showed that group counseling in the way of self-recognition sources was significant and effective in the increasing of self-expression in patients addicted to the drugs being rehabilitated at the level of P < 0.01. Conclusion: Based on the findings, it can be concluded that group counseling education in the way of self-recognition sources increases the self-expression in addicts.


Author(s):  
Amir Keshavarzi ◽  
Mehdi Zare Bahramabadi ◽  
Shohreh Shiroudi ◽  
Seyed Ali Hoseini Al-Madani

Aim: The purpose of this study was to investigate the effectiveness of emotion focused couple therapy on mental well-being and performance of maladapted couple referred to counselling centers. Methods: the present study had a quasi-experimental design with pretest-posttest, and a control group. The statistical population of the study consisted of all incompatible couples (n=30 couples) who had referred to counseling centers in shiraz in 1397, which were selected through available sampling method. Out of these 30 couples, 15 couples were randomly substituted as experimental group and 15 couples as control groups; and individuals in both groups were evaluated using questionnaires before performing the intervention in the experimental group. Data collection tools included the Great Oral and Magyar-Moe Welfare Family Performance Scale, the experimental group received ten 90-minute sessions of emotional treatment, while the control group did not receive any treatments. Data were analyzed by one–way analysis of covariance. Findings: The results of one-way analysis of covariance on the mean scores of post-test of mental well-being and family dysfunction of experimental and control groups with pre- test control, respectively (p<0.0001, F=40.77) and (p<0.0001, F=172.59), which indicates the significance of the effect of emotion-focused couple therapy. Conclusion: The analysis showed the effectiveness of emotion-focused couple therapy in increasing mental well-being and performance of conflicted couples.


2016 ◽  
Vol 12 (4) ◽  
pp. 195
Author(s):  
Lida Norouzi ◽  
Behnam Makvandi

<p>This study aimed to investigate the effect of Pilates on resiliency and psych-asthenia of the housewives in Tehran. The most common problems of the housewives included decreased resilience and uniform life that led to increased psych-asthenia. Using the knowledge of Contrology, measuring the effect of Pilates on resiliency and psych-asthenia of the housewives was considered. Quasi-experimental research design included the control groups (pre-test, post-test). The statistical population consisted of 40 housewives (20 in Pilates group and 20 in control group) that were selected using the available sampling by referring to a sports club in District 2, Tehran. Data were analyzed using analysis of variance and multivariate analysis of covariance, and the adjusted comparison was conducted at the significance level of 5%.The results showed that the adjusted mean of the scores of resiliency and psych-asthenia for the intervention group are significantly different (p&gt;5.0) and there is a significant difference between the mean scores of resiliency and psych-asthenia of the treatment and control groups. Pilates exercises increase resiliency and decrease psych-asthenia of the housewives. Thus, it is recommended that psychologists and psychiatrists consider Pilates as a supplementary treatment in their prescriptions.</p>


Author(s):  
Abdolbaset Mahmoudpour ◽  
Sana Dehghanpour ◽  
Sahar Ejadi ◽  
Shahla Mohamadi

Aim: The purpose of this research was to determine the effectiveness of compassion-focused therapy on distress tolerance and feeling of guilt in mothers of children with physical-motor disability. Methods: The quasi-experimental research method included pre-test and post-test, with control group. The statistical population of this study consisted of all mothers of children with physical disability who had received education in special schools in city of Saqez during the Persian year of 1398. For this purpose, 24 mothers of physically disabled children were selected from the exceptional schools by convenient sampling method and randomly assigned to experimental and control groups (12 in each group). The experimental group received 10 sessions of intervention and no training was given to the control group. The instruments used in this study were the Distress Tolerance Scale (DTS) and the Test of Self-Conscious Affect (TOSCA-2), which were completed in the pre-test and post-test phases. Data were analyzed using covariance analysis. Findings: The findings of this study indicated that there was a significant difference between the experimental and control groups in pre-test and post-test in scores of distress tolerance and feeling of guilt. According to these findings, compassion-focused therapy is effective in decreasing feeling of guilt and increasing distress tolerance of mothers of children with physical disability. Conclusion: The results showed that self-compassion, through providing positive experiences, increasing adaptation to stressful situations, and expressing empathy and sympathy can increase distress tolerance in individuals and reduce the level of guilt of mothers with children with disabilities.


Author(s):  
Mehrangiz Farazmand ◽  
Mahdi Aghapour

Background: The present study was conducted aiming to determine the effectiveness of Cognitive Emotional Training on psychological capitals in the students with Oppositional Defiant Disorder (ODD). Method: It was an experimental study with pretest, posttest and control group. The statistical population included adolescent with ODD studying at first high schools in the city of Tehran in academic year 2017-18. The samples included 30 adolescents with ODD who were selected through multi-stage clustered random sampling method and control groups (each group of 15). The experimental group received Cognitive Emotional Training during nine months while the control groups didn’t receive any intervention. Psychological capital and children and adolescents mental health questionnaires were used. The data analysis was conducted via SPSS 23 through ANCOVA (Due to separation of effect of pre-test scores) at the 0.05 error level. Results: The results showed that Cognitive Emotional Training has significantly influenced psychological capitals of the students with ODD (p < 0.001). Furthermore, the results showed that this therapy was able to significantly maintain its effect in time (p < 0.001). This training has been able to improve the psychological capital of students with ODD. Conclusion: According to the findings of the present study it can be concluded that Cognitive Emotional Training using social and emotional techniques can influence psychological capitals of the students with ODD. Therefore Cognitive Emotional Training can be applied as an effective therapy in order to psychological capitals of the students with ODD


2021 ◽  
Vol 24 (2) ◽  
pp. 246-255
Author(s):  
Soheila Zolfaghari ◽  
◽  
Omid Moradi ◽  
Hamzeh Ahmadian ◽  
Narges Shams Alizadeh ◽  
...  

Background and Aim: The quality of sexual satisfaction of couples plays an essential role in marital dissatisfaction; therefore, sexual satisfaction training can be effective in reducing this marital problem. The present study aimed to investigate the effects of sexual satisfaction model training on reducing couples’ distress among couples referring to counseling centers. Methods & Materials: This was a quasi-experimental study with pretest-posttest and a control group design. The statistical population of the study included all couples referring to counseling centers in Sanandaj City, in the academic year of 2019-2020. The instruments used in this research were Couple Burnout Measure (CBM). After selecting the sample and randomly forming two groups of 30 experimental and control groups, a pretest was conducted on the study groups. The researcher provided eight 90-minutes training sessions to the experimental group as a model of sexual satisfaction. The obtained data were analyzed using SPSS. Ethical Considerations: This study was approved by Ethics Committee of Kurdistan University of Medical Sciences (Code: IR.MUK.REC.1397.5037). Results: The current research results revealed a significant difference (P≤0.001) between the experimental and control groups concerning marital boredom (F=35.581) and its dimensions, including physical fatigue (F=25.074), emotional exhaustion (F=39.031), and mental exhaustion (F=35.020); the effect of the educational program was equal to 0.42, 0.31, 0.41, and 0.39, respectively. Conclusion: The present study findings indicated that sex education model training was effective in reducing couples’ referrals to counseling centers.


Author(s):  
Angham Amin Nasab ◽  
Zahra Yousefian ◽  
Marmareh Sehatti

Background: A headache is considered as one of the most common physical complaints and a type of debilitating neurodegenerative disorder that affects people's social, communicative and occupational tasks. Therefore, this study aimed to investigate the effectiveness of stress reduction-based cognitive therapy on perceived stress and migraine symptoms in women suffering from migraine. The instruments used in this study included the Perceived Stress Questionnaire and Migraine Disability Assessment Questionnaire. The present study data were analyzed using the covariance analysis. Methods: The present study adopted a pretest-posttest with control group design. The statistical population of the present study included all patients suffering from migraine who went to the medical centers in Tehran in 2017. In this study, convenient sampling and random assignments were used. In fact, amongst the migraine patients, 30 patients were selected through a convenient sampling method that were then randomly assigned to experimental and control groups.  The experimental group received an intervention in a three-month period in ten 90-minute sessions, whereas the control group did not receive this intervention during the research process. The patients were randomly assigned to the experimental and control groups. Results: The results of data analysis showed that stress reduction-based cognitive therapy was effective on perceived stress and migraine symptoms in women suffering from migraine (P-value < 0.001), that is to say, this treatment can reduce perceived stress and migraine symptoms in women suffering from migraine Conclusion: Based on the findings of this study, it can be concluded that cognitive therapy based on stress reduction can be used as an effective treatment to reduce stress and migraine symptoms in women with migraine As the study findings revealed, it can be concluded that cognitive therapy based on stress reduction can be used as an effective treatment to reduce stress and migraine symptoms for women suffering from migraine.   Keywords: Cognitive Therapy, Migraine Symptoms, Stress


2010 ◽  
Vol 80 (1) ◽  
pp. 65-73 ◽  
Author(s):  
Pei-Min Chao ◽  
Wan-Hsuan Chen ◽  
Chun-Huei Liao ◽  
Huey-Mei Shaw

Conjugated linoleic acid (CLA) is a collective term for the positional and geometric isomers of a conjugated diene of linoleic acid (C18:2, n-6). The aims of the present study were to evaluate whether levels of hepatic α-tocopherol, α-tocopherol transfer protein (α-TTP), and antioxidant enzymes in mice were affected by a CLA-supplemented diet. C57BL/6 J mice were divided into the CLA and control groups, which were fed, respectively, a 5 % fat diet with or without 1 g/100 g of CLA (1:1 mixture of cis-9, trans-11 and trans-10, cis-12) for four weeks. α-Tocopherol levels in plasma and liver were significantly higher in the CLA group than in the control group. Liver α-TTP levels were also significantly increased in the CLA group, the α-TTP/β-actin ratio being 2.5-fold higher than that in control mice (p<0.01). Thiobarbituric acid-reactive substances were significantly decreased in the CLA group (p<0.01). There were no significant differences between the two groups in levels of three antioxidant enzymes (superoxide dismutase, glutathione peroxidase, and catalase). The accumulation of liver α-tocopherol seen with the CLA diet can be attributed to the antioxidant potential of CLA and the ability of α-TTP induction. The lack of changes in antioxidant enzyme protein levels and the reduced lipid peroxidation in the liver of CLA mice are due to α-tocopherol accumulation.


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