Utilization of bio-waste cotton (Gossypium hirsutum L.) stalks and underutilized paulownia (paulownia fortunie) in wood-based composite particleboard

The objective of this study was to investigate some mechanical (modulus of rupture, modulus of elasticity and internal bond) and physical (thickness swelling and water absorption) properties of wood-based three-layer particleboard containing different cotton (Gossypium hirsutum L.) stalks and underutilized paulownia (paulownia fortunie) wood particle ratios (30, 50 and 70%) using urea formaldehyde resin. Addition of cotton stalk and paulownia wood in particleboard improved mechanical properties of resulting composites boards significantly. However, the water resistance decreased with increasing cotton stalk and paulownia wood particle contents. The highest mechanical properties were obtained at cotton stalk and paulownia wood particle loading of 50 and 70%, respectively. Conclusively, valuable underutilized natural resources, cotton stalk and paulownia wood can be used with the mixture of industrial wood particles in the production of particleboards with high mechanical properties.Keywords: Wood, resin, urea-formaldehyde, mechanical properties, physical propertie

The Effect of Job Stress on Nurses' Caring Behaviors and Quality of Life Related to Their Health in Coronavirus Pandemic

Introduction: Stressed people are physically, psychologically, and behaviorally damaged. This study aimed to investigate the effect of job stress on nurses' caring behaviors and quality of life related to their health during Coronavirus pandemic.Methods: The present study is an applied and analytical research conducted cross-sectionally in 2021. The study's statistical population was 740 nurses from the hospitals of Mazandaran University of Medical Sciences. The authors randomly selected a sample of 253 nurses using Cochran's formula. The data collection tool was a standard questionnaire. The structural equation model test analyzed the collected data to measure the research hypotheses using SPSS 22 and Amos 22 softwareResults: The standard coefficient value between stress and caring behavior is -0.47, and the significant value (t-value) is greater than 1.96 (equal to 5.350) at 95% level; therefore, the relationship between these two variables was found significant. Moreover, the standard coefficient value between job stress and quality of work life is -0.55, and the significant value (t-value) is greater than 1.96 (equal to 6.488) at the 95% level, showing a significant relationship between these two variables.Conclusion: Considering the obtained results, it is necessary to develop effective strategies, such as staff participation in decision-making, supervisory support, and reducing work pressure for improving working conditions and reducing nurses’ occupational stress

Spatial distributions of natural radionuclide concentrations of bottled mineral water: doses estimation and health risk assessment

Background: Evaluation of the various types of water reveal that groundwater comprises 99% of the earth’s available fresh water. Many factors affect the type and degree of mineralization, as well as the natural radionuclides content in these types of water. The consumption of bottled natural mineral water, which comes from groundwater, among Iranians is gradually increasing. Therefore, the detection of high concentrations of radionuclides, associated with consumption of groundwater, is proposed as a public health problem in several areas. Methods: In this study, the activity concentration of natural radionuclides such as 226Ra, 228Ra, 210Pb, and 40K, annual effective dose for three age groups (17 years), and excess lifetime cancer risk due to the ingestion of natural radionuclides present in 70 different commercial bottled mineral waters from most provinces of Iran, were evaluated. Activity concentrations were measured using gamma spectrometry and a high purity germanium detector (HPGe). Results: The results showed that the activity concentrations of natural radionuclides were higher than those reported in the same studies in other countries. Also, the annul effective dose for the three age groups was much higher than the recommended value (0.1 mSvyr-1), as reported by the WHO. The excess lifetime cancer risk for three radionuclides, 226Ra, 228Ra, and 40K, were less than the acceptable value of 10-3 for radiological risk, while the risk for 210Pb was higher than the recommended value. Conclusion: According to the results of this study, the frequent use of bottled waters produced in different provinces of Iran possess health hazards to consumers. Keywords: Mineral waters, Spectrometry, Gamma, Radium-226, Potassium-40, Ira

Investigation of the effect of education on nutritional knowledge, attitude and performance of primary school students in Ilam - 2015

Background and objective: Nutritional habits are formed in childhood and will remain until the end of life. Proper nutrition in childhood leads to the promotion of growth and development of child and reduces the risk of chronic diseases during adulthood. This study aimed to assess the effect of education about nutrition on nutritional knowledge, attitude and performance of students in primary schools. Methods: This is a quasi-experimental study which is conducted in 2015. 180 students from primary school in Ilam city were selected randomly and assigned into case (90 people) and control (90 people) groups. Before initiation of educations, a pretest was held in both groups. Then for the case group, a nutritional education was performed during 5 sessions of 45 minutes. After 2 weeks of finishing the educational sessions, posttest was performed by giving a questionnaire of knowledge, attitude and performance to case and control groups. Eventually, two groups were compared with each other in terms of nutritional knowledge, attitude and performance. In order to analyze the collected data, SPSS 21 software was used. The significance level of tests was 5% and descriptive statistics including tables and numeric indices and also inferential tests including paired t-Test, independent t-Test and Chi-square were used. Results: Findings of this study showed that in the case group, there was a statistically significant difference between the mean score of knowledge, attitude and performance of students before and after education (P 0.05). There was also a significant difference between case and control groups after education (P< 0.05). Conclusion: Nutritional education may lead to the improvement of nutritional knowledge, attitude and performance of primary school students. Considering the importance and role of students and also low cost of preventive measures in comparison with therapeutic measures, it looks necessary to expand this type of educational program

AENSI Journals Advances in Environmental Biology Investigating the Role of Workplace Spirituality on Improvement of Organizational Citizenship Behavior Considering the Mediator Role of Organizational Commitment in Employees (Case Study: Ninth District of

Keywords: workplace spirituality, organization citizenship behavior, organizational commitment, 9th district of municipality Background: Spirituality causes enhancement of commitment by creating a trust-based climate. The commitment includes employees&apos; commitment to the organization and also organization&apos;s commitment to employees and customers. In organizations that enjoy of high level of spirituality in comparison with those who don&apos;t enjoy of these values, employees have positive attitudes, support of organization and more commitment. In this research, it is attempted to investigate the relationship between workplace spirituality, organizational commitment and organization citizenship behavior among employees of 9th district of Tehran municipality. In order to examine research hypotheses and acquire results, Lisrel software and structural equations model have been used. The obtained results of this research showed that workplace spirituality influences positively on organizational commitment and organization citizenship behavior of employees. Furthermore, organizational commitment influences positively on organization citizenship behavior of employees

The Content Features of New Technology-Based Firms

New Technology-Based Firms (NTBFs) have significant contribution to economic growth, and in particular to promote innovation and job creation. For this reason, many countries are seeking to establish and grow such institutions with encouraging policies. Despite the economic importance of these companies, there is no single definition for them, and several definitions for these types of companies are tailored to the purpose of each study. Because of the nature of the need to produce a coherent framework for the characteristics of these types of companies, it is important that the purpose of the present study is to identify the features of the NTBFs. For this purpose, the research works that covered the nature of this concept from 1990 to 2011 were analyzed by content analysis. In the first phase, definitions of these companies were compiled, and further identification of the effective nature of these companies was identified. The results of this research led to the identification, confirmation and prioritization of the five features that include being new, advanced technology, independence, small size in terms of number of employees and volume of sales and funding by the founders, which according to the most frequent characteristics of the articles in question were prioritized. The final result of this study is to guide and streamline future research by achieving theoretical coherence in defining this concept

The Relationship between Aggression and Impulsiveness with Susceptibility for Addiction in Male Student

Objective: The present study examined the relationship of aggression and impulsiveness with readiness for addiction among the students of Allameh Tabatabai University. Materials & Methods: The methodology applied in this research was cross- analytical. 170 male undergraduate students who study at Allameh Tabataba'i University were selected by two-stage random sampling. To measure the variables, Aggression Questionnaire of Ahvaz, Barrat Impulsiveness scale(BIS) and the readiness for addiction scale of Wade and Butcher were employed. To analyze the findings, the Pearson correlation coefficient and multiple regressions were used. Results: Results indicated that the variables of aggression and impulsiveness were significantly able to predict the readiness for addiction (P<0.001). Also, based on the coefficient of determination, aggression and impulsiveness variables together predicted 49 percent of variance of addiction readiness variable. Conclusion: Noting that the variables of aggression and impulsivity can properly predict readiness for addiction, university counseling centers can, through workshops, teach the students different ways of controlling these variables in a variety of situations and so they will be able to prevent the tendency towards drug use

The Relationship Between Organizational Culture and Knowledge Management in Educational-Therapeutic Hospitals (Case study Hamadan Educational-Therapeutic Hospitals in 2017)

Introduction: Knowledge management in health care system can reduce medical errors, increase the quality of care, organizational learning and promote cooperation, innovation and cause cost reduction. The success of successful organizations lies in the organizational culture and employees’ beliefs. The aim of this research was to investigate the relationship between organizational culture and knowledge management in Hamadan educational-therapeutic hospitals. Methods: The present study was a correlational study-related survey which was carried out in a cross-sectional way on 300 nurses in Hamadan’s educational-therapeutic hospitals in 2017. Robbins organizational culture questionnaires and Nanoka Knowledge Management have been used to collect information. Data were analyzed using SPSS24 and descriptive (mean, deviation and variance) and analytical (Pearson correlation coefficient) methods were used. Results: In this study, the organizational culture of nurses (with a score of 2.5) and knowledge management (with score of 3.16) were in appropriate conditions. There was a positive and significant relationship between organizational culture and knowledge management (r = 0.639, P=0.001). All components of organizational culture with knowledge management have a positive and significant correlation. Conclusion: According to the results of the study, if organizational culture and its components are improved, the progress and improvement of knowledge management will increase the quality of health care services. It is suggested that in the process of establishing knowledge management in medical centers, attention should be paid to the structural and cultural dimensions of the organization, in particular the development of individual creativity and leadership style, coherence and integrity

ارتباط الصحة المعنوية بالصحة التنظيمية عند موظفي جامعة العلوم الطبية في قم

سابقه و هدف: سلامت سازمانی توانایی سازمان براي تحقق اثربخش اهداف خود به‌منظور رشد و توسعه است و به دوام و بقای سازمان در محیط خود و سازگاری با آن و ارتقا و گسترش توانایی خود برای سازش بیشتر با محیط اشاره دارد. بنابراین، پرداختن به عوامل مؤثر بر سلامت سازمانی از اهمیت ویژه‌ای برخوردار است. بدین منظور، تحقیق حاضر به بررسی ارتباط سلامت معنوی و سلامت سازمانی در کارکنان ستاد دانشگاه علوم پزشکی قم پرداخته است. روش کار: پژوهش حاضر از نظر هدف کاربردی و از نظر نحوۀ گردآوری داده‌ها جزء مطالعات میدانی و از نوع همبستگی است. جامعۀ آماری پژوهش 150 نفر از کارکنان ستاد دانشگاه علوم پزشکی قم بود. برای تعیین حجم نمونه با استفاده از جدول کرجسی و مورگان تعداد 108 نفر حداقل حجم نمونه در نظر گرفته شد که نمونه‌های آماری با استفاده از روش نمونه‌گیری تصادفی ساده انتخاب شدند. به‌منظور گردآوری داده‌ها از دو پرسش‌نامۀ استاندارد پس از بررسی روایی و پایایی آنها و برای تجزیه‌ و تحلیل داده‌ها از آزمون‌ آماری همبستگی استفاده شده است. در این پژوهش همۀ موارد اخلاقی رعایت شده است و مؤلفان مقاله تضاد منافعی گزارش نکرده‌اند. یافته‌ها: نتایج آزمون همبستگی پیرسون حاکی از آن است که بین سلامت معنوی و سلامت سازمانی کارکنان ستاد دانشگاه علوم پزشکی قم رابطۀ مثبت و معناداری وجود داشت. از نتایج دیگر این مطالعه می‌توان به وضعیت متوسط سلامت سازمانی و سلامت معنوی بالا در جامعۀ بررسی‌شده اشاره نمود. نتیجه‌گیری: درمجموع می‌توان اذعان نمود که سلامت معنوی یکی از عوامل مؤثر در وضعیت سلامت سازمانی است. بنابراین جهت ارتقای سلامت سازمانی می‌توان به سلامت معنوی توجه ویژه‌ای داشت تا از ثمرات آن بهره‌مند شد.Background and Objective: Organizational health is the ability of an organization to reach its goals effectively in order to achieve growth and development. Organizational health refers to the permanence and survival of the organization in its environment and adaptation to it and the promotion and expansion of its ability to further adapt to the environment. Therefore, investigating the factors affecting organizational health needs special consideration. Thus, the purpose of the current study is to study the relationship between spiritual health and organizational health among the Staff of the Qom University of Medical Sciences. Methods: The research method is descriptive-correlational and the statistical population includes 150 staff of Qom University of Medical Sciences. In order to collect the necessary data, 108 respondents were determined as the minimum number of the sample size using Krejcie and Morgan’s table. To collect data, two standardized questionnaires were used for measuring spiritual health and organizational health after confirming the reliability and validity. Further, for data analysis, correlation coefficients were used. In this study, all ethical considerations were observed and no conflict of interest was reported by the authors. Results: The findings showed that there is a significant relationship between spiritual health and organizational health. Further, the results show that the statistical population enjoys a moderate level of organizational health and high level of spiritual health. Conclusion: In summary, it can be claimed that spiritual health is one of the factors which can predict organizational health. Therefore, in order to improve the level of organizational health, managers of organizations can pay attention to spiritual health to achieve competitive advantage.خلفية البحث وأهدافه: تشير الصحة التنظيمية إلى قدرة المؤسسة على تحقيق أهدافها بنحو مؤثر بغرض التنمية والتوسعة، واستمرار المؤسسة وبقائها في محيطها، وانسجامها معها وارتقاء وتوسعة قدرتها على الانسجام أكثر مع محيطها. ومن هنا يكتسب البحث في العوامل المؤثرة على الصحة التنظيمية أهمية خاصة. ولهذا السبب تتصدى الدراسة الحالية للبحث في ارتباط الصحة المعنوية بالصحة التنظيمية عند موظفي جامعة العلوم الطبية في قم. منهجية البحث: تعتبر الدراسة الحالية تطبيقية من حيث الهدف، ومن حيث كيفية جمع البيانات من جملة الدراسات الميدانية ومن النوع الارتباطي. وكانت المجموعة الإحصائية للدراسة تشمل 150 فرداً من موظفي جامعة العلوم الطبية في قم. ومن أجل تعيين حجم العينات فقد تم اعتبار عدد 108 فرداً كحد أدنى من حجم العينات اعتماداً على جدول (كرجسي ومورغان). وتم اختيار العينات الإحصائية من خلال الطريقة العشوائية البسيطة في أخذ العينات. وبغرض جمع البيانات فقد تمت الاستفادة من استبيانين قياسيين. وذلك بعد التدقيق في صلاحيتها وموثوقيتها. كما تمت الاستفادة من البرنامج الإحصائي للارتباط من أجل تفكيك البيانات وتحليلها. تمت مراعاة جميع الموارد الاخلاقية في هذا البحث، وإضافة الى هذا فان مؤلفي البحث لم يشيروا الى اي تضارب في المصالح. الكشوفات: تحكي نتائج اختبار ارتباط بيرسون إلى وجود علاقة إيجابية وذات معنى بين الصحة المعنوية والصحة التنظيمية عند موظفي جامعة العلوم الطبية في قم. ومن النتائج الأخرى التي يمكن الإشارة إليها لهذه الدراسة هي الحالة المتوسطة للصحة التنظيمية والمستوى العالي من الصحة المعنوية في المجموعة موضع الدراسة. الاستنتاج: يمكن الإذعان في الجملة بأن الصحة المعنوية تعتبر أحد العوامل المؤثرة في حالة الصحة التنظيمية. ولهذا فإنه بغرض الارتقاء بالصحة التنظيمية فإنه لابد من الاهتمام بالصحة المعنوية بشكل خاص كي يمكن الاستفادة من ثمراتها