فهرست مطالب navid asadi

 Enterotoxemia occurs following absorption of large amounts of toxin through the intestinal wall. The causing agent of this disease is clostridium perfringens. The present study Comparison of Immune Responses Following the Administration of Enterotoxaemia Vaccine in kermani Sheep and Goats.

 Two groups consisting 30 sheep and 30 healthy goats of the same breedselected. Each of these groups was then divided into three sub groups of ten. One sub group of ten sheep and goats formed the control group, which received no vaccination in the course of the study. The second sub group received vaccination only once, and the last sub group was vaccinated twice. Blood samples were taken from these 60 animals on day 1, 15, 30, 45, 60  and 75 after vaccination, and antibody titer and duration of immunity were determined by ELISA test.

 The antibody titer during the study in the control sub group was zero. In sub group 2 sheep that received only one dose of vaccine had a mean antibody titer of 0. 428 and in goats 0. 097. In sub group 3 sheep that received two vaccinations, the mean antibody titer was 0.772 and in goats it 0. 408 was. Immunity durabity longer in sheep than in goats.

 The results showed significant differences in antibody titer and duration of immunity between animals that received booster doses compared to those that were vaccinated only once. Moreover, antibody titer approached zero much earlier in goat than that in sheeps.

Depending on their job conditions, nurses experience various psychological problems that require problem-solving skills to solve them. Problem-solving helps manage anxiety and improve psychological health. Therefore, this study was conducted to investigate the prediction of problem-solving skills based on anxiety and the psychological health of nurses.

This study was a cross-sectional and correlational study. The statistical population of the present study consisted of all nurses in Kerman hospitals in 2019-2020. The sample consisted of 425 people who were selected by random sampling method and answered Beck Anxiety Inventory (1990), Goldberg and Hiller General Health Questionnaire (1979), and Heppner Problem Solving Questionnaire (1982). Subjects' scores were analyzed using descriptive (mean, standard deviation), and inferential statistics (correlation coefficient and linear regression) by SPSS-22.

Mean and standard deviation was in anxiety 22.20±4.80, mental health 29.46±5.46, and problem-solving 87.31± 7.43. The results showed that problem-solving skills had a significant negative relationship with anxiety (r= -0.412) and a positive and significant relationship with psychological health (r= -0.534). Anxiety 20% and mental health explained 16% of the variance of problem-solving (P <0.05).

Based on the findings of the present study, problem-solving skills in nurses can be predicted through anxiety and psychological health. Therefore, it is suggested that relying on training this component and strengthening it, reduce the level of anxiety and increase psychological health in nurses.

Escherichia coli infections in poultry have a word wide spread. Serotypies O1, O2, O8, O35, O78 Escherichia coli is involved in the development of generalized colibacillosis disease. Genes such as F17, Sfa, pap, afa, , fimH , crl , iuc, bla, yja, chu, are considered as an Escherichia coli acuity factoro. the aim of the present study were Phylogentic of Escherichia coli isolates involved in Colibacillosis and cellucitis in broiler chickens in shahrebabak(Kerman Province) by Multiplex PCR Technique 

From 117 samples of Escherichia coli (83 colibacillosis samples and 34 cellulitis samples) were isolated. These samples were examined and confirmed by biochemical methods.

Colibacillosis isolates were belonged to A (54.27%), B1 (7.22%), B2 (6.03%) and D (32.53%) phylogroups. Where as, the isolates from cellulitis cases were belonged to three main phylogroups; A (55.88%), B1 (5.88%) and D (38.24%).

Statistical analysis showed a specific association between the presence of crl virulence gene and Phylogrups of A and D (P<0.05) in colibacillosis isolates.
The results showed that the isolates from both diseases in broiler chickens could be assigned to various phylogenetic groups (mainly A). Also, the virulence genes profile of cellulitis E.coli is completely different from that of colibacillosis in this region

The purpose of this research was to design and the validity and reliability of Iran’s sport talent identification obstaclesquestionnaire. For that purpose, 71 question questionnaire was designed to measure seven talent identification obstacles and performed on the sample. The sampling method was selective. The statistical sample was 22 people in the qualitative section and 145 in the quantitative section. They were consisted of the presedent of the Federation, the Federation Talent identification Committee officials, people working in the office of the Ministry of Sport and Youth Talent Search, professors, talent identification coaches, and club officials. Content validity of the questionnaire was conducted by twelve professors in the field. To test reliability of internal consistency (Cronbach's alpha using) were used. Factor analysis showed that the obstecles to talent identification in the sport's seven-factor structure had a good fitting. Finally, the questionnaire and the review of the system of talent identification in all institutions in the country are now in charge of talent identification would be used.

The present study aimed at investigating the obstacles to talent identification in sports in Iran. The research method was mixed and consecutive exploratory type and the data were collected in 3 stages: library studies, 26 interviews, and distribution of a researcher-made questionnaire. The questionnaire was designed by library studies and the interviews. The sample consisted of 145 subjects of 6 groups: heads of federations, authorities of talent identification committee of those federations, staff in the talent identification office of the Ministry of Sport and Youth, university professors, talent identification coaches and authorities of sport clubs. To analyze the data, descriptive and inferential statistics such as exploratory factor analysis, confirmatory factor analysis through PLS software and Friedman test were used. Finally, 70 obstacles to talent identification of Iran sport were identified which were classified into 7 factors and human obstacles (average=5.47) was identified as the most important factor. The results indicated many obstacles to the structure of the talent identification of Iran sport to which sport managers and policy makers should pay special attention so that Iran sport can achieve what it aimed to achieve through the elimination of these obstacles.

The aim of this study was to identify barriers facing mechanical ticketing in Iran football premier league. A descriptive-survey research method was used. A questionnaire was administered; its face validity was confirmed by professors and content validity by exploratory factor analysis. Using Cronbach's alpha, reliability of the questionnaire was confirmed ( α=89%). Statistical sample equaled the whole population consisting of 34 authorities of the Football Federation, current managers in the premier league clubs and some university professors of sport management related to the research topic. The data were analyzed using the exploratory factor analysis (with Varimax rotation) and Kolmogorov-Smirnoff and U Mann Whitney tests. The results of factor analysis showed that obstacles facing mechanical ticketing could be categorized into seven factors: ticket pricing, promotion and advancement of sales, tournament venue, current rules and regulations, management, education and awareness, and economic status.

To record the MRI features of primary central nervous system lymphoma (PCNSL) and compare these properties in monofocal and multifocal disease.
Eleven cases of monofocal disease were compared to 9 cases of multifocal disease. All patients were examined by non-enhanced and contrast-enhanced MRI. Tumor location, signal intensity, enhancement characteristics, age distribution, peritumoral edema, cystic changes, and the presence of calcifications were assessed. The MRI features were compared between the monofocal and multifocal patients.
There were 20 cases including both the monofocal and multifocal cases. Contrast-enhanced images showed variable enhancement patterns: homogeneous enhancement (14 patients), and hetrogenous enhancement (6 patients). One case of hemorrhage and two cases of cystic formation were observed. Intra-tumoral calcification was not detected. The frontal lobe, the corpus callosum and the basal ganglia were commonly involved in both the monofocal and multifocal lesion.
Our data showed that PCNSL has a variable enhancement and edema pattern on MRI. Monofocal PCNSL cases typically have larger size tumors with mild or marked enhancement.

The aim of this study was to analyze and compare the viewpoints shared by university professors and the managers holding sports events of federations on the competencies of sports event managers. The study was a descriptive survey conducted as a field research. The statistical population included all university professors with more than three years of experience of teaching courses related to management of sports events (N=39) and managers involved in holding sports events of federations (N=50). The statistical sample was equal to statistical population (n=89). The data were collected by the COSEM questionnaire of the competencies of sports event managers (Toh، 1997) consisting of 65 closed questions. The content validity of the questionnaire was confirmed by university professors، and its reliability coefficient was 0. 87. The inferential statistics of confirmatory factor analysis with varimax rotation and Kolmogorov-Smirnov and independent t tests were used. The results showed the most important competencies of sports event managers included event planning and management techniques، sports facilities management، and event marketing management. Also، there was no significant difference between the viewpoints of university professors and the managers holding sports events of federations.