فهرست مطالب mm naghizadeh

The aim of this study was to separate the chemical victims of mustard gas into exposed to and non-exposed groups to sulfur mustard using classical discriminant analysis and two-state logistic regression and selection of the best analysis.

The present study is a historical group that was conducted from 2005 to 2014. By observation method and systematic sampling, 284 people were included in the study including 216 people from Sardasht City as an exposed group and 68 people from Rabat City as a control group who were in all respects compared to the case group. Using classical discriminant analysis and logistic regression methods, 32 quantitative variables were examined and finally these two methods were compared using rock curve analysis. SPSS 21 software was used for analysis.

The 8 significant variables that had the highest ability to differentiate the groups (FEV1/FVC ratio, testosterone, cholesterol, phosphorus, conjugated bilirubin, red blood cell count, hemoglobin and hematocrit) were selected and entered into the main models. Using the rock curve, the cutting points of the variables were determined and the sensitivity and specificity values ​​for discriminant analysis were 78% and 77.5%, respectively, and its sub-curved surface was 81.2%. In differentiating the groups, testosterone index was the strongest variable and conjugated bilirubin factor was the weakest variable. In logistic regression model, FEV1/FVC, testosterone and phosphorus ratio variables were significant (p<0.05). The sensitivity and specificity of this model were 80% and 75%, respectively, the rock curvature level was 81.4% and the value of R^2 was 0.308.

In the separation of chemical victims, the classical discriminant analysis and logistic regression methods have similar results, but discriminant analysis is a more appropriate model due to the presentation of the diagnostic function.

Assessment tools and questi-onnaires that are used in research to measure the achievement of research ob-jecttives must be standardized themselves to ensure the results. The aim of this study was to design the validity and reliability of osteoporosis prevention instrument based on health belief model in women.

This cross-sectional study was carried out on 400 women، aged 30 to 50 years old، in Fasa city. After revi-ewing the related literature، a suitable instr-ument was designed and its content validity ratio، content validity index، face validity، and exploratory factor analysis were mea-sured. For measuring the reliability of the scales، three methods، including test-retest، internal consistency، and agreement were used. Data analysis was done using SPSS software.

Reliability of 42 items with imp-act score of 0. 15 and content validity index of 0. 79 were evaluated based on explo-ratory factor analysis and classified into se-ven categories. The overall reliability، me-asured through Cronbach alpha، was 0. 87. Reliabilities of knowledge questionnaire، perceived susceptibility، perceived severity، perceived benefits، perceived barriers، mot-ivation، self-efficacy، and cue to action were 0. 86، 0. 71، 0. 82، 0. 79، 0. 82، 0. 77، 0. 79، and 0. 77، respectively. Discussion &

This study prov-ided good evidence on the strength of factor structure and reliability of Health Belief Model structures for prevention of oste-oporosis women، according to the study of psychometrics process.

The effect of aerobic exercise on the blood coagulation system as a risk factor for coronary disease is still controversial. This study aimed to investigate the effect of a session of moderate aerobic exercise on some of the blood coagulation factors in the young girls. This interventional study was conducted on 11 healthy female volunteers aged 21 to 24 years, who had taken no systematic physical exercise for one year. This study was approved by the Ethics Committee of Kerman University of Medical Sciences. The performed protocol comprised 30 minutes of running with 70-75% intensity of maximal heart rate reserved. Every volunteer donated blood for 3 times (before, immediately after and 30 minutes after the intervention), and the coagulation factors of Platelet count, Mean Platelet Volume, PT, aPTT, Fibrinogen and Factor VIII of plasma were measured. The data were analyzed using the repeated measures ANOVA. Immediately after a session of aerobic exercise, the platelet count and factor VIII increased about 23% (P= 0.001) and 75% (P=0.004), respectively while aPTT decreased about 8% (P= 0.007). PT showed a delayed increase observed 30 minutes after the exercise (P< 0.001). The results revealed that physical exercise, even with moderate intensity, activates some of blood coagulation markers and can lead to further side effects and probably a longer recovery. These findings would be helpful in adjusting the exercise intensity for the sedentary people, especially at the beginning of the training course