جستجوی مقالات مرتبط با کلیدواژه "شاخص های ایمنی" در نشریات گروه "پزشکی"

Exercise interventions combined with medicinal plants are effective in preventing or reducing cancer symptoms and side effects caused by cancer treatment. The aim of this study was to investigate the effect of interval training and consumption of Urtica dioica hydroalcoholic extract on selecteted factors of immune and growth in C57BL/6 rats with melanoma cancer.

In this experimental study, 20 C57BL/6 rats were randomly divided into four groups include control (cancer), Urtica dioica (cancer), and Urtica dioica - interval training (cancer). Experimental groups received nettle extract of 30 mg daily per kilogram of body weight. The interval exercise program included running on a treadmill 60 minutes at a speed of 28 meters per minute, five days a week for six weeks. Levels of nucleotide exchange factor (Apg-2), heat shock protein 70 (HSP70), cytotoxic T lymphocyte-associated antigen 4 (CTLA-4), programmed death protein-1 (PD-1), insulin-like growth factor-binding protein 2 (IGFBP2) of rats was measured by Real Time PCR method. The data were analyzed and analyzed by One -way variance analysis and the Toky's test at the P<0.05.

interval training led to significant increase in gene expression of APG2, CTLA4 and decrease in IGFBP2 (P<0.001). Urtica dioica extract led to significant decrease in IGFBP2 (P<0.010). interval training with Urtica dioica extract led to significant increase in gene expression of APG2 and decrease in IGFBP2 compared to the Urtica dioica group (P<0.001). There was no significant difference between the mean of PD-1 gene expression in different groups (P=0.158).

According to the results, interval training with Urtica dioica hydroalcoholic consumption has more advantages in regulating gene expression of some growth and immune factors in melanoma cancer than interval training and Urtica dioica consumption alone.

Proactive indicators for occupational health and safety (OHS) can provide necessary information about the potential causes of accidents and the effectiveness of occupational safety and health management systems based on simultaneous examining of work environment, working conditions, and workers' behavior. The present study aimed at assessing safety status in a pottery factory using Elmeri index.

A descriptive cross-sectional study was conducted in a pottery factory in Mazandaran province, 2021. OHS performance of the factory was evaluated in 19 workstations using an observation-based Elmeri+ index in six dimensions. Data analysis was conducted in Excel software based on calculating the index score for each unit (%), the average index (%) for dimensions, and the total factory average index (%).

The average total score for Elmeri+ index of the pottery factory was estimated to be 39.07%. Total scores for Elmeri+ index of workstations showed that loading and cementing stations had the lowest scores and security and electrical stations had the highest scores. Of the six dimensions studied, industrial hygiene and ergonomics had the lowest score and workers’ safety behavior had the highest score in different workstations.

The study showed that the pottery factory has poor OHS performance and most of the problems were associated with industrial hygiene. Therefore, establishment of OHS management systems (e.g., HSE-MS, ISO45001) can be effective in regular monitoring and implementing appropriate control strategies in a framework for systematic management of OHS could be of great benefit.

Comprehensive and reliable performance evaluation of organizations has always been one of the main concerns of stakeholders and managers of organizations. Performance evaluation can raise awareness of the progress made in improving the performance of any organizations, especially in the field of health, safety, and environment (HSE) and thus, create the necessary motivation and opportunity to improve the quality of HSE performance. National quality awards and excellence approaches emphasizes the fact that survival in global competition requires improving the performance of organizations on a global scale. The EFQM enterprise excellence model, as a comprehensive tool with a comprehensive approach to all aspects of organizations, helps managers to understand their organization well.

This study was conducted in Tehran Industrial Group in 2018, during which the performance of this industrial group in the design and construction of one of the dams in the south of the country was evaluated and analyzed. The data collection tool was a standard self-assessment questionnaire based on the EFQM enterprise excellence model, the validity and reliability of which was tested by Cronbach’s alpha coefficient at 0.971.

In terms of “enablers” criteria, the leadership dimension, with a score of 76.36, obtained the best percentage of scores, while the processes criterion with a score of 72.04 had the lowest percentage of scores. This dimension, along with staff, resources, and partnership dimensions, needs to be improved. In the field of “results” criteria, the key performance results with 79.77 points had the best percentage and the customer result dimension with a score of 69.13 had the lowest, indicating that the organization should improve these sectors.

The results indicated the suitable status of the organization in terms of the criteria of excellence model. The results of this model are generally used for systematic analysis of the organization in order to achieve a comprehensive view of the organization and its challenges.

Studying and prioritizing the criteria to improve the safety of pedestrian traffic can help planners and decision makers to create a safe environment for pedestrians. This study was designed and carried out to identify and prioritize the safety criteria of pedestrians thoroughfares of Hamadan province based on multi-criteria decision making by fuzzy TOPSIS method.

In this study, a logical and systematic process was run using fuzzy TOPSIS method to develop an optimal model under each of the selected criteria. The study was carried out during 2018-2019. To determine the risk factors related to the modeling, first the indicators were determined by the panel of experts pannel from an extensive list of functional indicators. Then, using SMART criteria of weighting proportion and weighing indicators were used to rank the i indicators among identified indicators related to pedestrian safety.

A total of 50 people, with a mean and standard deviation of age 42.68 and 0.83 years, participated in this study. The fuzzy analysis showed that according to the view of study participants, creating uneven crossings at intersections, creating safe paths around schools, restricting pedestrian access to highways, creating controlled crossings in high-risk areas, and education and promotion of the traffic culture in the community through mass media are the most important key criteria for promoting pedestrian safety, respectively.

This study revealed that the necessary and important criteria for improving the safety of pedestrians include various areas of human, environmental, and vehicle factors.

In developing countries، promotion of road safety is of crucial importance. This paper presents the status of road safety in Iran during 2001 - 2006. The status of road safety in Iran was surveyed in this descriptive study using road safety indicators a in macro level. Firstly، 46 indicators were identified after studying almost all indicators related to the road safety. After consulting of views with road safety experts and considering the reliable existing data، 11 indicators were selected to study the safety status of the roads. Then، all essential data for determining each indicators were collected from related organizations and institutes. All indicators were determined and evaluated in the last step. The results revealed that during the period of 6 years، death toll has been increased by 9 deaths per 100000 person of the population. Moreover، application of seat belt and safety helmet has been increased by 20% and 18%، respectively. It also indicated that the number of motorists and the length of paved roads have been increased by 20%، and 10%، respectively. The net income per capita has also grown from 5884 US$ to 7968 US$ and the life expectancy has gone up from 68. 9 years to 70. 9 years، the percentage of the literate population has grown by 2% (from 76% to 78%) and the human development index has increased from 0. 721 to 0. 759. The results of the present study showed that the increased level of death toll per 10000 vehicles and the increased level (%) of seat belt as well as helmet application، paved roads، urbanization، the net income per capita، life expectancy، literacy and human development index were statistically significant and R2 coefficient for this factors was 0. 84، 0. 9، 0. 994، 0. 9، 0. 97، 0. 82، 0. 69 and 0. 84 respectively. According to result of the present study، roads safety were not in an appropriate level. The roads safety status can be determined using road safety indicators to be applied for road safety promotion.

With increasing activities in underground mines and special risks of such mines، establishment of a coordinated and systematic safety system is important. Prediction of occupational accidents to prevent their occurrence is very important. In this cross-sectional study، the accidents occurred during 2006 to 2010 in one of the mines of central region of Iran were studied، and the relationship between the causes of accidents and its location، type of injury and injured organs، work experience، age groups، time of accident and work shifts were determined. Data were analyzed by SPSS 16. Mean age of the subjects with accidents was 27. 33±4. 51 years and their work experience was between 1-3 years، the most frequent accident type included falling objects (24. 85%) and contact with moving objects (20. 9%). The most common cause of accidents was lack of control measures and the work environment and recklessness. Contusion and sprain (32. 2%) and fractures (22. 6%) were the most frequent outcome of events. In the present study، indices of repetition severity and frequency of the incident in 2010 were the most frequent ones which is the development of mining operations and the hazards faced by workers. The implementation of safety systems and education of personnel about safety rules is essential in order to prevent accidents، improve safety culture and reduce accident costs.