The Association between Lifestyle-related Risk Factors and Coronary Artery Disease in Residents of Yazd Province: A Case-control Study

Background: This study was conducted to investigate the relation between risk factors related to lifestyle and coronary artery disease (CAD) in residents of Yazd province. Methods: In this hospital-based case-control study performed in Yazd province, 250 patients with CAD were compared with 250 controls matched for age and sex. Data were collected by using a researcher- made questionnaire. Data analysis was performed using Chi-square and Conditional Multiple Logistic Regression and through SPSS16. Results: History of Consumption of less than three servings of fruit in week, with an odds ratio of 8.4 (95%CI: 1.56-45.18) and more than three times egg in week with an odds ratio of 4.05 (95%CI: 1.13-14.5, P=0.03) increased the chance of getting CAD. However, no significant relationship was found for history of consumption of oil, dairy, red meat, fried foods and fast foods. The number of daily smoked cigarettes was the only non-nutritional factor that showed significant relationship with CAD (P=0.01). Conclusion: Overall, insufficient intake of fruits, high consumption of egg and the number of cigarettes smoked daily were identified as the most important life style-related risk factors for getting CAD. Therefore, measures for decreasing these risk factors in Yazd Province are necessary

Full waveform acoustic data as an aid in reducing uncertainty of mud window design in the absence of leak-off test

Creating a mechanical earth model (MEM) during planning the well and real-time revision has proven to be extremely valuable to reach the total depth of well safely with least instability problems. One of the major components of MEM is determining horizontal stresses with reasonable accuracy. Leak-off and minifrac tests are commonly used for calibrating horizontal stresses. However, these tests are not performed in many oil and gas wellbores since the execution of such tests is expensive, time-consuming and may adversely impact the integrity of the wellbore. In this study, we presented a methodology to accurately estimate the magnitudes and directions of horizontal stresses without using any leak-off test data. In this methodology, full waveform acoustic data is acquired after drilling and utilized in order to calibrate maximum horizontal stress. The presented methodology was applied to develop an MEM in a wellbore with no leak-off test data. Processing of full waveform acoustic data resulted in three far-field shear moduli. Then based on the acoustoelastic effect maximum horizontal stress was calibrated. Moreover, maximum horizontal stress direction was detected using this methodology through the whole wellbore path. The application of this methodology resulted in constraining the MEM and increasing the accuracy of the calculated horizontal stresses, accordingly a more reliable safe mud weight window was predicted. This demonstrates that the presented methodology is a reliable approach to analyze wellbore stability in the absence of leak-off test

Exploring the nutritional beliefs of pregnant women in Yazd city

Introduction: During the pregnancy, a woman as a  healthy person grows another human being in her body and needs more cares due to  changes in psychological and physical needs. This study aimed to explore the nutritional beliefs of pregnant women in Yazd city. Methods: This was a qualitative study conducted with a conventional content analysis approach. A total of 12 participants were selected from women referred to the community health centers in Yazd, Iran, by the purposeful sampling method. Data were collected through recorded semi-structured interviews that were transcribed verbatim and analyzed by the Lundman and Granheim’s content analysis method. Results: In this study, after analyzing the data, 10 main categories and 26 subcategories were extracted. The codes were 446 cases with no overlap, which was reduced after careful review and integration of similar items. Topics of categories included: The concept of nutrition during pregnancy, Nutrition limitations during pregnancy, Myths about food during pregnancy, Doubts about nutrition during pregnancy, Pregnancy food style, Sources of nutritional information in pregnancy, Positive Consequences of Healthy Nutrition in Pregnancy, Consequences of inappropriate pregnancy nutrition, Religious Beliefs in Pregnancy Nutrition, social support. Conclusion: The results indicated that the women were committed to their own nutritional beliefs that derive from their culture and this study provided a clear picture of the cultural beliefs of Yazdi women regarding pregnancy nutrition. According to the results, it is necessary to design the education process based on the culture of the community in order for that process to be effective

The Status of Smokeless Tobacco Use and its Associated Factors Among the Business Guilds Population of Chabahar

Purpose: Use of smokeless tobacco is a major preventable cause of premature death and diseases. It leads to over 5 million deaths annually worldwide. This study aimed to investigate the status of smokeless tobacco use and its associated factors among the business guilds population of Chabahar City, Iran. Method: The present descriptive cross-sectional study was conducted on 320 users of various types of smokeless tobacco selected by simple random sampling method. Data were collected using a researcher-made demographic questionnaire, smokeless tobacco inventory, attitude questionnaire, and behavior questionnaire. The validity and reliability of these tools were confirmed in the previous studies. Data were analyzed in SPSS using descriptive (mean, standard deviation, frequency, and %age) and inferential statistics (Kruskal-Wallis and Exact Fisher test). Results: Most of the participants used the chewing tobaccos Gutkha and Pan-Parag (24%, 95% CI= 28.7-19.4 and 23%, 95% CI= 27.7-18.5, respectively). The mean scores (standard deviations) of the participants\u27 behavior and attitude were 7.71 (2.59) and 22.34 (7.60), respectively. The results of bivariate analysis indicated no significant difference among different smokeless tobacco groups regarding the attitude scores (P = 0.104). A significant association was observed among different groups of smokeless tobacco regarding the behavioral scores (P = 0.007). Conclusion: The scores of attitude and behavior were significantly low among the business guilds population of Chabahar City regarding consumption of smokeless tobacco. Therefore, effective steps should be taken urgently to launch social awareness programs to educate people about the consequences of tobacco use and effectiveness in curbing the problem

Near Wellbore Hydraulic Fracture Propagation from Perforations in Tight Rocks: The Roles of Fracturing Fluid Viscosity and Injection Rate

Hydraulic fracture initiation and near wellbore propagation is governed by complex failure mechanisms, especially in cased perforated wellbores. Various parameters affect such mechanisms, including fracturing fluid viscosity and injection rate. In this study, three different fracturing fluids with viscosities ranging from 20 to 600 Pa.s were used to investigate the effects of varying fracturing fluid viscosities and fluid injection rates on the fracturing mechanisms. Hydraulic fracturing tests were conducted in cased perforated boreholes made in tight 150mm synthetic cubic samples. A true tri-axial stress cell was used to simulate real far field stress conditions. In addition, dimensional analyses were performed to correspond the results of lab experiments to field-scale operations. The results indicated that by increasing the fracturing fluid viscosity and injection rate, the fracturing energy increased, and consequently, higher fracturing pressures were observed. However, when the fracturing energy was transferred to a borehole at a faster rate, the fracture initiation angle also increased. This resulted in more curved fracture planes. Accordingly, a new parameter, called fracturing power, was introduced to relate fracture geometry to fluid viscosity and injection rate. Furthermore, it was observed that the presence of casing in the wellbore impacted the stress distribution around the casing in such a way that the fracture propagation deviated from the wellbore vicinity

Relationship between Religious Orientation, Anxiety, and Depression among College Students: A Systematic Review and Meta-Analysis

Background: Religious obligation helps people to develop mental health by creating internal commitment to special rules. This meta-analysis aimed to determine the relationship between religious orientation and anxiety among college students. Methods: Major scientific databases including PubMed, Web of Science, Science Direct, EBSCO, ProQuest and PsycINFO were searched for original research articles published 1987-2016. A random effect model was used to combine Correlation coefficient. All analyses were performed using Stata MP. Results: After screening of 7235 documents, 13 articles including 5620 participants met inclusion criteria in this meta-analysis. Correlation coefficient was -0.08 (95% CI= -0.19, -0.03) which indicated with increasing religious orientation, anxiety and depression reduced (P<0.001). Characteristics such as sex, geographic region, and type of religions were potential sources of heterogeneity. Based on fill-and-trim method the adjusted pooled r was obtained, -0.06 (95% CI= -0.16, -0.04). Conclusion: There was a weakness relationship between religious orientation and mental anxiety and depression. Therefore, it needs to improve knowledge of student about advantages of religious orientation

Exploring Barriers and Facilitators of Inter-Organizational Management in Response to Mass Casualty Traffic Incidents: A Qualitative Study

Objective: To investigate and understand the current status of inter-organizational management in relief organizations as well as the relief organizations personnel behavior when facing mass traffic incidents (MCTI). The inter-organizational barriers and facilitators are also discussed in response to MCTI management and in order to help direct future actions to improve pre-hospital emergency services. Methods: The current qualitative study was performed through face-to-face, semi-structured interviews with 31 individuals from pre-hospital emergency services authorities and personnel, Red Crescent and Yazd, Kohgiluyeh and Boyer-Ahmad, Fars, and Qom provinces police. These provinces were selected by purposive sampling in 2018-2019. The conventional content analysis method was applied to analyze the data in this research. Results: Three main categories and 14 subcategories were determined. The categories are including relief organizations coordination (having four subcategories: independent relief organizations, interdepartmental services integration, insufficient knowledge of organizations about one other, and performance based on job descriptions), resource and infrastructure management (having four subcategories: adverse information management, proper information management, lack of medical resources and capacities considered, and upgrading of medical resources and capacities considered), and response management of relief organizations (having six subcategories: incomplete assessment, improving the quality of assessment, weakness in establishing scene security, scene security management, poor response, and cooperation in response). Conclusion: Relief organizations need to perform under a unified command. It has inter-organizational cooperation and provide integration of interdepartmental services in order to manage responsiveness at the scene. It also prevents an independent, chaos, and inability of the injured to properly understand and needs in MCTI

Relationship between Religious Orientation, Anxiety, and Depression among College Students: A Systematic Review and Meta-Analysis.

BACKGROUND: Religious obligation helps people to develop mental health by creating internal commitment to special rules. This meta-analysis aimed to determine the relationship between religious orientation and anxiety among college students. METHODS: Major scientific databases including PubMed, Web of Science, Science Direct, EBSCO, ProQuest and PsycINFO were searched for original research articles published 1987-2016. A random effect model was used to combine Correlation coefficient. All analyses were performed using Stata MP. RESULTS: After screening of 7235 documents, 13 articles including 5620 participants met inclusion criteria in this meta-analysis. Correlation coefficient was -0.08 (95% CI= -0.19, -0.03) which indicated with increasing religious orientation, anxiety and depression reduced (P<0.001). Characteristics such as sex, geographic region, and type of religions were potential sources of heterogeneity. Based on fill-and-trim method the adjusted pooled r was obtained, -0.06 (95% CI= -0.16, -0.04). CONCLUSION: There was a weakness relationship between religious orientation and mental anxiety and depression. Therefore, it needs to improve knowledge of student about advantages of religious orientation. KEYWORDS: Anxiety; Depression; Meta-analysis; Religious orientatio

A new model for analyzing hydraulic fracture initiation in perforation tunnels

Hydraulic fracturing has been used for many years in order to stimulate the oil and gas wells for improving reservoir production. The challenge of fracture initiation pressure and near-wellbore fracture propagation is a complex problem especially in deviated and cased perforated holes. Understanding the stress distribution around the perforations is the key for analyzing the fracture initiation mechanism and thereby realizing the near-wellbore fracture geometry. In this article, a generic model is developed for estimating the initiation pressure as well as the orientation geometry of the fracture in the perforations around the borehole. The results of this study show that at any specific stress regime around the wellbore, there is an optimum perforation orientation that leads to lower fracture initiation pressure. © Taylor & Francis Group, LLC