علی محمدبیگی

  Psychological responses and physical injuries can occur in stressful workplace environments for rescue workers or rescue teams. They included firefighters from various stations in Tehran and the journalists covering the news of the incident in catastrophic Tehran. They were continuous activity in the aftermath of the terrible firefight in the old and high-rise buildings of Trad center Plasco. More recently, the journalists also are taken into consideration for work-related injuries and risk-taking.
The purpose of this study was to compare the incidence of post-traumatic stress disorder( PTSD) and acute respiratory symptoms among firefighters and journalists stationed at the scene of the incident of the fires in the old trade center Plasco.
Material and Data collection was performed by setting up two health checklists, a questionnaire of the health and respiratory symptoms evaluation and Watson's test for PTSD. 102 volunteers have completed the criteria of study;44 firefighters and 58 journalists. 81% of the global volunteers had multiple degrees of the PTSD by the Watson's test. Both groups had a moderate degree of PTSD intensity. Only 4% of focus population expressed fatigue.
99% of the participants complained of acute respiratory system symptoms. The most common symptoms were a cough 61%, sputum 47%, and dyspnea 43%, respectively. The prevalence of post-traumatic stress disorder (PTSD) was remarkable among Iranian firefighters and journalists at the accident of the fire Plasco. The results of the study indicated that the detected PTSD reflects the presence of a disease that is related to the past of the volunteers. ]t has been revealed at the time and place of the accident.It is recommended that should pay attention to the diagnosis and treatment of the members’ rescue teams as the first line of policy with unexpected events.They are targeted individuals who are exposed to serious physical and psychological vulnerabilities.

For resistance to septoria tritici blotch, information on genetic variation of Pathogenicity and virulence in population of the causal agent is necessary to improve resistant cultivars based on the effective genes in a region. To determine the genetic variability of Mycosphaerella graminicola, the cause of septoria tritici blotch disease, seedling reaction of 21 differential cultivars, containing one or few resistant genes (Stb) each, together with four susceptible check cultivars was evaluated against 13 isolates of the pathogen collected from Goleta, Khuzestan and Liam provinces of Iran during 2011-2013. The experiment was carried out in a completely randomized design in greenhouse of Cereal Research Department, Seed and Plant Improvement Institute in Karaj. The reaction of seedlings was assessed based on percentage of necrotic areas and pycnidial coverage of leaves and Avirulence / Virulence formula for each isolate was determined.Based on the results, thirteen different Pathotypes were determined. Differential cultivars Arina, Riband and M3 containing Stb15, 6, Stb15 and Stb16, 17, respectively were resistant to all isolates. According to the frequency of virulence genes of M. graminicola isolates, virulence factors were not exist for resistance genes Stb15, Stb16 and Stb17.

Aim and Interference of psychological and physical factors in the digestive system has always been of grave importance. The aim of this study was to compare neurotic symptoms among patients with gastrointestinal disease, their healthy relatives, and a control group.
Methods and Materials: This causal-comparative study was conducted through a descriptive design. The study participants were selected through convenience sampling and divided into patients (n = 100), healthy relatives (n = 60), and control (n = 100) groups. The data collection tool was the Symptom Checklist-90-Revised (SCL-90-R). Data were analyzed in SPSS software.
Findings: A significant difference was observed between the three groups in terms of psychosis (P = 0.04), obsessive-compulsive disorder (OCD) (P There is a strong relationship between gastrointestinal symptoms and emotional problems. The results of the present study can be a basis for more in-depth studies on gastrointestinal disorders, and an important step toward the description, recognition, and treatment of gastrointestinal disorders. The performance of similar studies with a wider scope and greater depth is suggested.

In the present study seedling response of 21 wheat differential cultrivars carrying different Stb resistance genes and four check cultivars to thirteen isolates of M. graminicola، collected from Golestan، Khuzestan and Ilam provinces during 2011، 2012 and 2013، were investigated in greenhouse، using a completely randomized design. Analysis of variance on leaf necrosis area and pynidial coverage percentage showed significant differences at 1% probability level among the isolates and also isolate × cultivar، indicating high variation in pathogenicity of isolates and specific interaction between isolates and cultivars. Cluster analysis of the data showed that Riband (Stb15) and Shafir (Stb6) cultivars were the highly resistant and highly susceptible cultivars to all isolates، respectively. Isolates showed different virulence patterns on differential cultivars. Isolate SPII91005 from Gorgan with 42% necrosis area and 41% pycnidial coverage had the highest and isolate SPII91004 from Sardasht with 19% necrosis and pycnidial coverage had the lowest disease severities. The results of this investigation showed a high variation in pathogenicity of the isolates which can be related to the virulence factors exist in these isolates.

Aim and Cognitive models in establishing psychological problems refers to the effect of early maladaptive schemas in formation of psychology pathologies. The purpose of this study was the comparison of early maladaptive schema and procrastination in medical and nonmedical students of Shahid Beheshti University of medical sciences. Methods and Materials: The method is descriptive and comparative. There for two questionnaire of procrastination(GP) and early maladaptive schema of Yang (YSQ-SF) was filled by 462 students from 2 groups of medical [232] and nonmedical[230] students of Shahid Beheshti University of medical sciences tehran in year school 2012 which was recruited accessibility. Analysis was performed by SPSS. This study indicates that the students in both groups obtained the lowest scores in Incompetence (DI)/ Dependence schema and the highest score in unrelenting standards / hyper criticalness schema. There was a significant difference between medical and nonmedical groups in Entitlement /Grandiosity schema. Also There was no significant difference between groups in procrastination. According to the data it can be concluded that medical students had less dysfunctional schemas compared to non-medical students. Girls compared to boys in both groups had less dysfunctional schemas. procrastination was high in both groups. also procrastination was higher in medical students compared to non-medical students. Boys had more procrastination in both groups compared to girls.

Septoria tritici blotch (STB) caused by Mycosphaerella graminicola is one of the most important diseases theating wheat crop worldwide. Use of resistant cultivars is the most effective and economically way to control the disease. To evaluate and identify sources of resistance to STB among wheat genotypes at seedling stage، infected leaf samples were collected from different ares of Khuzestan province during 2010-2011 cropping season. After purification and preparation of several isolates of the pathogen، four most virulent isolates were selected and inoculated on primary leaves of seedlings of 219 wheat cultivars and advance lines together with four check cultivars selected from breeding materials of Seed and Plant Improvement Institute، Karaj، Iran. Resistance of genotypes were evaluated based on reaction types of seedlings on day 21 after inoculation، pecentage of necrotic areas and pycnidial coverage. Based on the results، eight cultivars Arina، Riband، M3، Arya، Shotordandan، Karkheh، Soison and Chamran were resistant to all four isolates. Line Sep-49 was resistant to two isolates 90014 and 90018 but susceptible to isolates 91001 and 91002. Lines Sep-58 and Sep-59 were also susceptible to isolate 91002 but resistant to other three isolates. The remaining genotypes were susceptible to all four isolates.

In this study، to investigate the mechanical properties of Cu / graphene nanocomposite using by mechanical alloying process of cold pressing of the Taguchi experimental design is used when variables such as percentage of graphene، milling time، pressure pressing and sintered temperatures used in this study. In this article the effect of graphene on the mechanical properties of copper / graphene nanocomposite has been studied. For this operation، the mechanical alloying powders in a ball mill for 20 hours maximum wear under argon atmosphere was carried out. Powder particle morphology by scanning electron microscopy، X-ray diffraction analysis of the powder mixture model and Raman spectra analyze has been used for graphene detect. According to the results mechanical properties are improved such that the highest compressive strength (MPa562) and highest hardness (3/63 BHN) are achieved in the Al composite reinforced with5/0 % and 2/0 % graphene respectively.

In this study, to produce this nano composite was used method mechanical alloying and hot pressing and were made pressure test samples. For this purpose, the mechanical alloying powders mentioned a maximum period of 10 hours in a ball mill abrasion was performed under argon atmosphere . The microstructure of the samples by RAMAN, XRD and SEM were examined , as well as to evaluate the mechanical properties, Brinell hardness test , and compressive strength of the samples were taken. Results show improved mechanical properties . Compared to pure aluminum, pure aluminum with 10 hours mill and Al/ graphene nanocomposite shows the increasing hardness (109 BHN) and increasing compressive strength (290MPa) in samples containing graphene is 0.2 percent.