Survey of the relationship between Quality of Work Life with Musculoskeletal Disorders and Hearing Loss

Background and Aims: Measuring and determining the components of quality of work life is one of the most important concerns of human resource management. This study examines the relationship between quality of work life with musculoskeletal disorders (MSDs) and hearing loss as indicators of HSE in an automobile manufacturing company.Materials and Methods: The statistical population of this descriptive-analytical study consists of 392 employees of company who were randomly selected from different departments using Morgan table. Required data was collected using an improved NIOSH quality of work life questionnaire, body map and audiogram.  SPSS software (version 23) was employed for descriptive and regression analyses. All stages of this research were conducted ethically.Results: The findings showed that the mean score for quality of work life was 171.13, ranging from 101 to 212. The greatest sensation of pain, based on the results, was at the end of the lumbar region with a frequency of 40.31 percent and the least was reported in palm left hand with a frequency of 6.38 percent. Furthermore, 6.3% of respondents showed hearing disability. Statistical analyses showed that there is significant relationship between the quality of work life and musculoskeletal diseases (p = 0.000) as well as the quality of work life and the rates of hearing loss (p = 0.000).Conclusion: Also, statistically significant relationship were noticed between the quality of working life and the level of health and safety, mental health, physical health, and employment in a noisy environment . If correct management issues of quality of work life were implemented, improved health indicators and subsequently improved quality of work life could be seen in an organization.Keywords: Quality of Work Life, Musculoskeletal Diseases, Hearing Los

Identificando os componentes da gestão de talentos na organização aduaneira do Irã pelo método delphi-fuzzy (estudo de caso)

Talent management is a system for identifying, upbringing, promoting, and preserving talented persons to optimize the capability of an organization to come up with optimal business results. Nowadays, the developing talent management is one of the most important business factors, which is considered as one of the key components to maintain a sustainable competitive advantage in organizations. the purpose of this study was to identify the components of talent management in the custom organization so that its implementation will be expedited. Considering various advantages of Fuzzy Delphi, we opted this method in conducting the study (The most important advantage is its greater accuracy than classical Delphi). Twenty persons were chosen as experts through a snowball sampling method. At the first step, 139 components were proposed based on previously reported through interviews, suggested to experts that, after four phases of deactivation, 54 indicators and components that were more relevant to the experts remained. In this study, we used a modified Three-branch model of Dr Mirzai Ahranjani (2005) (Of course, we also added a perceptual/cognitive branch that our model has a circular layer of four) to present a talent management model. The results of the research show that the behavioral/functional components in the final analytical model have the largest share.La gestión del talento es un sistema para identificar, educar, promover y preservar a las personas con talento para optimizar la capacidad de una organización y obtener resultados empresariales óptimos. Hoy en día, el desarrollo de la gestión del talento es uno de los factores empresariales más importantes, que se considera como un componente clave para mantener una ventaja competitiva sostenible en las organizaciones. El propósito de este estudio fue identificar los componentes de la gestión del talento en la organización personalizada para que su implementación se agilice. Teniendo en cuenta las diversas ventajas de Fuzzy Delphi, optamos por este método para realizar el estudio (la ventaja más importante es su mayor precisión que la clásica Delphi). Veinte personas fueron elegidas como expertos a través de un método de muestreo de bola de nieve. En el primer paso, se propusieron 139 componentes basados en entrevistas anteriores, y se sugirió a los expertos que, después de cuatro fases de desactivación, quedaban 54 indicadores y componentes que eran más relevantes para los expertos. En este estudio, utilizamos un modelo modificado de tres ramas del Dr. Mirzai Ahranjani (2005) (Por supuesto, también agregamos una rama perceptiva / cognitiva que nuestro modelo tiene una capa circular de cuatro) para presentar un modelo de gestión del talento. Los resultados de la investigación muestran que los componentes de comportamiento / funcionales en el modelo analítico final tienen la mayor participación.O gerenciamento de talentos é um sistema para identificar, criar, promover e preservar pessoas talentosas para otimizar a capacidade de uma organização de obter resultados comerciais ideais. Hoje em dia, o desenvolvimento de gestão de talentos é um dos fatores de negócios mais importantes, considerado um dos principais componentes para manter uma vantagem competitiva sustentável nas organizações. O objetivo deste estudo foi identificar os componentes do gerenciamento de talentos na organização personalizada para que sua implementação seja acelerada. Considerando várias vantagens do Fuzzy Delphi, optamos por este método na condução do estudo (a vantagem mais importante é a sua maior precisão do que o Delphi clássico). Vinte pessoas foram escolhidas como especialistas por meio de um método de amostragem de bolas de neve. Na primeira etapa, 139 componentes foram propostos com base em entrevistas previamente reportadas, sugeridas a especialistas que, após quatro fases de desativação, restavam 54 indicadores e componentes mais relevantes para os especialistas. Neste estudo, usamos um modelo de três ramos modificado do Dr. Mirzai Ahranjani (2005) (claro, também adicionamos um ramo perceptivo / cognitivo que nosso modelo tem uma camada circular de quatro) para apresentar um modelo de gestão de talentos. Os resultados da pesquisa mostram que os componentes comportamentais / funcionais no modelo analítico final têm a maior participação

Social security insurance model in Iran with a sustainable development approach: A comparative study of selected countries, Iran, Turkey and Denmark

The social security system in any country is a mirror of the development and the level of welfare of that society, and sustainable development in any country has a direct relationship with the quantity and quality of social security services. Given the initial establishment of the social security system in almost all countries, as well as Iran, the main challenge in this area can be considered the development of quality, quantity and services in a way that is able to meet the needs of society. (Khaleghparast, Rasekh, Naimi, 2017). Therefore, this study intends to identify the gaps between the current situation and the desired situation, by presenting applications in the form of a proposed model, to design the desired social security system according to the characteristics and conditions prevailing in society and its final destination to determine the development process of the country. This study is a descriptive-comparative study and has been done in several stages. The findings indicate that there is a significant gap between the management, governance and establishment of the social security system in Iran and the sample countries, especially Denmark. In countries that have succeeded in establishing the social security system, they have paid special attention to the three indicators of development and empowerment (risk management and realization of prevention levels), macro-planning and how to provide services, and by recreating the position of government in the security system, as well as following the recommendations and patterns of communication by international organizations and institutions, which are always considered as policy theories, the reference of policy makers in this field, have achieved good success in creating social welfare and public satisfaction. In this regard, according to the information obtained, it seems that the Social Security Organization, in following the patterns, models and global systems in the field of social security, should undertake serious reforms in the field of macro planning, development and improvement of employees, as well as improving and developing service delivery, take effective steps towards achieving sustainable development of the countr

Superiority of Bayesian Model Averaging to Stepwise Model in Selection of Factors Related to the Incidence of Type II diabetes in Pre-diabetic Women

Introduction:  The world prevalence of type 2 diabetes and its related increment mortality rate which needs high controls cost has attracted high scientific attention. Early detection of individuals who face this disease more than the others can prevent getting sick or at least reduce the disease consequences on public health. Regarding the costs and limitations of diagnostic tests, a statistical model is presented that helps predict the time of diabetes incidence and determines its risk factors. Furthermore, this model determines the significant predictor variables on response and considers them as model equation parameters.Materials and Methods: In this study, 803 pre-diabetic women in the age range of more than 20 years were selected from Tehran lipid and glucose study (TLGS) to examine the predictor variables on time of diabetes incidence. They were entered into the study in the phases 1 and 2 and were followed up to the phase 4. The predictor variables selection was performed using the Stepwise Model (SM) and the Bayesian Model Averaging (BMA). Then, the predictive discrimination was used to compare the results of both models. The Log-rank test was performed and the Kaplan-Meier Curve was plotted. The statistical analyses were performed using R software (version 3.1.3).Results: The Backward Stepwise Model (BSM), the Forward Stepwise Model (FSM) and the BMA have used 9, 10 and 6 variables, respectively. Although the BMA selected predictor variables number is much lower than the SM, the prediction ability remains nearly constant.Conclusions: The BMA has averaged on the supported models using dataset. This model has shown nearly constant accuracy despite the selection of lower predictor variables number in comparison to the SM

Deviation of the Error Estimation for Second Order Fredholm-Volterra Integro Differential Equations

In this paper we study the deviation of the error estimation for the second order Fredholm-Volterra integro-differential equations. We prove that for m degree piecewise polynomial collocation method, our method provides O(hm+1) as the order of the deviation of the error. Also numerical results in the final section are included to confirm the theoretical results

Repetitive transcranial magnetic stimulation of the dorsolateral prefrontal cortex enhances working memory

Neuroimaging and electrophysiological studies have unequivocally identified the dorsolateral prefrontal cortex (DLPFC) as a crucial structure for top-down control of working memory (WM) processes. By modulating the excitability of neurons in a targeted cortical area, transcranial magnetic stimulation (TMS) offers a unique way to modulate DLPFC function, opening the possibility of WM facilitation. Even though TMS neuromodulation effects over the left DLPFC have successfully improved WM performance in patients with depression and schizophrenia in a multitude of studies, raising the potential of TMS as a safe efficacious treatment for WM deficits, TMS interventions in healthy individuals have produced mixed and inconclusive results. Here, we stimulated the left DLPFC of healthy individuals using a high-frequency repetitive TMS protocol and evaluated behavioral performance in a battery of cognitive tasks. We found that TMS treatment enhanced WM performance in a verbal digit span and a visuospatial 2-back task

Challenges facing Iranian social security in the path of sustainable development, causes and providing some solutions

Following economic, social, political and cultural changes and the spread of social phenomena such as poverty, unemployment, increasing population of the elderly and disabled, governments have taken on new responsibilities towards their citizens and their scope of operation has expanded. (Ghaffari, 2017). In this direction, due to the mentioned changes, several challenges have been faced on social security in relation to the efficient establishment of the social security system. Therefore, the present study, in response to the question of what are the most important challenges of social security in the implementation of sustainable development programs, intends to provide appropriate solutions in this area by analyzing and analyzing the causes of challenges facing the Social Security Organization. This research is a descriptive-comparative type and in addition to interviews with experts, professors and individuals who have researched in the field of social security, as well as a number of managers and experts in the field of social security, using the library method. The statistical population includes existing documents in the field of social security at the domestic and international levels, which have been dictated by reference organizations such as the International Social Security Association (ISSA), International Labour Organization (ILO) and the World Bank in this field. Content analysis method has been used for data analysis. The challenges have been enumerated by adapting the current state of social security to its desired state based on global guidelines, models, and systems. Then, the obtained information was tested using the questionnaire with a reliability coefficient of 0.7 to examine and comment on the experts Delphi test and was analyzed using SPSS software. Findings indicate that social security in Iran is far from global standards and models and is struggling with micro and macro challenges. Evidence and research results showed that the most important reasons for the existing challenges should be pursued in policies, regulations and also in the field of implementation. It also seems that explaining the role of the government in the field of social security is a missing link that ignoring it will jeopardize any orientation in the field of social security and it is necessary to pay attention to macro-planning in this area. &nbsp

No-isolated high gain DC/DC converter with low input current ripple suitable for renewable applications

In this paper, a new non-isolated high voltage gain dc/dc converter with low input current ripple is proposed for renewable sources applications. The proposed converter combined SEPIC converter and voltage multiplier cells. In order to achieve high voltage gain, the proposed converter can increase the output voltage level using the voltage multiplier unit. The voltage stress across the semiconductors will be decreased compared to SEPIC, conventional boost converter. Therefore, using only one switch with lower resistance RDS(on), the overall efficiency of the proposed converter is increased significanly. In order to verify the theoretical analysis of the proposed converter and its accurate operation, a 150 W prototype operating at 25 kHz is built and tested