جستجوی مقالات مرتبط با کلیدواژه « maintenance » در نشریات گروه « پزشکی »

The tension and crisis caused by the lack of water is one of the major problems in Iran and the world. The available water resources are under threat with the increase in population and the water per capita is constantly decreasing. The use of wastewater treatment plant effluents for irrigation of green spaces, agriculture and other purposes as an alternative and suitable source is very necessary and must be given more attention. This problem shows the importance of proper operation and maintenance of wastewater treatment plants, especially the activated sludge method as a very efficient process with the production of wastewater with suitable quality for use in irrigation of green spaces and agriculture. Achieving this importance depends on the adequate training of local operators and the existence of necessary incentive and monitoring programs and policies. This article is presented with the aim of introducing one of the most important and practical techniques in the operation of wastewater treatment plants using the activated sludge method. This article is presented with the aim of introducing one of the most important and practical techniques in the operation and maintenance of wastewater treatment plants using the activated sludge method.

The preventive maintenance management system plays an effective role in preventing defects, increasing the safety of equipment and users, and reducing cost of operating systems. In this study, the efficiency of these systems was investigated in 6 blood transfusion centers in Tehran, Alborz, Amol, Hamedan, Semnan and Qom during May to October 2021

In this cross-sectional study, the condition of the components, connections and parts of 35 active engine rooms, ventilation and diesel generator systems in 6 blood transfusion centers was investigated through checklists, interviews and visual observation, and the obtained data was analyzed using the software SPSS 25.

The results of this study indicated the non-compliance with the requirements in the maintenance management system of electrical network equipment and facilities in 6 centers with more than 10 years of history due to the lack of experienced personnel, financial limitations and lack of supervision in effective periodic visits, safety tests, and corrections. The need for reforms was imperative in the engine room and electrical network. The average non-cleansing of components in these centers was 61%, deposits and corrosion of connections 33%, rust 25%, clutter and accumulation of wires and cables 67%.

The results of this study showed that non-compliance with the requirements of the maintenance management system leads to the failure to prevent the occurrence of damages and injuries on the performance of the devices, as well as the failure to increase the safety of the equipment, the useful service life of the operation and the access time, along with the reduction of breakdowns and repair costs.

Nowadays, one of the most important challenges for health policymakers is the phenomena of emigration of health graduates. The aim of this manuscript is to assess and analyze factors that influence retaining and maintaining health elites in Iran. Since this issue is complicated and multidimensional, and as it has happened gradually, It is simplistic to think that the problem can be resolved by providing a simple, quick and effective solution. However, it is possible to take measures to solve the problem. Accordingly, in this article, we have presented the existing challenges for faculty members and health elites staying in Iran, and subsequently, the existing strategies to maintain this group in the country.

Preventive maintenance plays a crucial role in ensuring continuous operation and increasing the accuracy and safety of medical equipment. The existence of this system can significantly reduce the cost of the repair and replacement. In this study, the effectiveness of the maintenance of medical equipment of 7 blood centers was evaluated in Tehran, Karaj, Gilan, Mazandaran, Semnan, Shiraz and Yazd during the years 2016-2018.

In this cross-sectional study, the effectiveness of establishing maintenance management on 201 devices with a history of more than 5 years in 7 blood transfusion centers was evaluated. Performance status and effectiveness of periodic visits and training were done through a questionnaire and in person. Descriptive and inferential statistics, one-way analysis of variance, and Spearman correlation coefficient were used to analyze the data. The results were statistically calculated using SPSS 16 software.

The results of this study showed that about 40% of the medical equipment of these centers do not have a regular evaluation and the operating conditions of the devices, periodic visits and user training were 87%, 64% and 43% in good scale, respectively. Analysis of variance also showed that the mean scores of equipment performance conditions, periodic visits, and user training were not statistically significant according to relevant international standards.

  Establishment of medical equipment maintenance management has led to continued performance, increased accuracy of results, access time, and useful life along with reduced breakdowns and the cost of repairs.

Identifying the nature of social anxiety through its causative factors can provide valuable information for the health system. The purpose of this study was to evaluate a structural model for creating and maintaining factors causing social anxiety disorder in students in a medical sciences university.

A descriptive-correlational study was performed in all students at Ahvaz Jundishapur University of Medical Sciences. Online questionnaires were completed (n= 670), including social phobia inventory (SPIN), Young Schema Questionnaire-Short Form (YSQ-3), Behavioral Activation/Inhibition Systems (BAS/BIS), Older Adult Social-Evaluative Situations Questionnaire (OASES), Social Phobia Safety Behaviors Scale (SPSBS), Emotion Regulation Questionnaire (ERQ), Mini-Social Thoughts and Beliefs Scale (Mini-STABS), and Self-Beliefs Related to Social Anxiety Scale (SBSA). Data were analyzed by structural equation modeling and Bootstrap method using AMOS software.

Fit indices showed that hypothetical research model has a good fit with the data. In the present model, positive significant relationships were found between social anxiety and the paths associated with behavioral inhibition, trust-abuse, defectiveness/shame, social isolation, unrelenting standards via mediators of social-evaluative situations, safety behaviors, emotion regulation, social thoughts and beliefs, and self-beliefs to social anxiety (P<0.0001). But, we observed no significant relationship between social anxiety and emotion regulation mediator path (P<0.0001).

Considering the role of etiology and maintenance factors in current model, it can be used in designing treatments for social anxiety and promoting the health of medical students.

The Covid-19 pandemic created a situation in which managers had to make decisions in a short period of time and also created challenges for them. One of the most important challenges in this situation was the provision of manpower. As the prevalence of Covid-19 increased, the number of patients referred to hospitals increased and the workload of staff multiplied. Lack of standard equipment for personal protection and constant fatigue and exhaustion of medical staff due to high workload led to a decrease in their level of immunity and safety, and a large number of hospital staff became infected with Covid-19. The purpose of this study is to provide the scenarios and strategies that were used to meet the challenge of providing and maintaining medical staff during Covid-19 in Afzalipour Hospital in Kerman, as experience to other managers of medical centers and hospitals.

Preventive maintenance management is a well-known method to increase the quality of medical equipment performance in medical centers as well as provide safety and reduce costs. In this regard, the effects of this system were investigated in 10 blood transfusion centers in Iran.

In this cross-sectional study, the random sampling was done on 296 active devices as categorized in four types of medical equipment in ten blood centers. By the use of SPSS 16, the data achieved from the programs of the maintenance management system in the process of the operation of the selected devices were evaluated. By the use of t-test, the mean ± 1 SD measures of the factors effective on the performance, dysfunctions, and lifetime span of devices were evaluated intervention-based.

The establishment of the preventive management system of medical devices as evaluating four types of medical devices and being increased to incorporate 4754 factors in 2019 as compared to 1292 factors in 2014 improved various conditions such as maintenance process, productivity, effective use of resources and facilities, reduced challenges and problems, increased the effectiveness and satisfaction of users, reduced breakdowns and cost repairs. For example, the failure rate of centrifuges in these centers has been reduced significantly from 22% to 8% and the failure rate of blood bank refrigerators from 17% to 3% during the years 2014 to 2019.

Conclusions  :

The results of this study showed that the use of this system can have significant effects in preventing dysfunction and increasing their lifespan.

In the processing industry, deaths and severe damages to the equipment due to certain incidents were reported in recent years. And, the industrial sectors are interested in an effective means to prevent or reduce the severity of these accidents in an integrated and planned manner. The aim of this study is a risk-based inspection technique and the consequent benefits of its implementation in the process industries.

In this retrospective study, keywords related to research title, including risk-based inspection, risk management, probability of failure, a consequence of failure, risk analysis, process management, risk-based maintenance, corrosion management, process safety, and Asset Integrity management was selected and then searched on the internal and external databases of Science Direct, PubMed, Google Scholar, SID, Google Search, Magiran, Civilica and Scopus without any time limit. Then the findings and results of confirmed research were extracted and analyzed. Finally, conclusions about the benefits of this method in improving the process management system were reviewed. Then the findings and results of confirmed research were extracted and analyzed. Finally, the conclusion about the effect of the advantages of this method in improving the process management system was examined.

A review of various studies showed that the benefits of using RBI were summarized into 11 ategories, including business (economic), effective operations, risk management, effective inspection management, asset and corrosion integrated management, experts of competency and knowledge, health, safety, environment (HSE), compliance with risk and safety standards, process safety, social expectations, legal, and judicial requirements.

The results showed that the use of RBI in the process industry provides many benefits. Therefore, the establishment and implementation of risk-based inspection in these industries can increase the functionality of equipment and improve the process management system.

Undoubtedly a huge amount of hospital funds are spent on purchase and renovation of medical equipment, which requires correct operation by users in order to preserve national capital. Improving the quality of health services, increases the efficiency and effectiveness of equipment and optimal use of funds depends on the planning and implementation of standard systems of equipment maintenance. This study aimed to analyze the situation of equipment maintenance management and to determine its relation with the annual cost of hospitals. In this cross-sectional descriptive-analytical study, the maintenance status of medical equipment of 15 university hospitals in four indicators of purchase, repairments, quality control and technical force was checked and rated by field visits and using a medical equipment maintanance checklist that its validity and reliability were approved by the Iranian Medical Equipment General Office. Also, the cost of each indicator was obtained from hospitals and compared with the scores of the same indicator and their correlation was calculated using Pearson's test. Correlation coefficients between maintenance score and reducing purchasing costs (0.49), reducing the cost of repairments (0.29) and quality control costs (0.60) showed a significant positive relation between the status of maintenance of medical equipment and costs (P <0.05). Correct implementation of medical equipment maintenance management and quality assurance of measures related to maintenance in medical centers, help reduce costs in the areas of purchasing, repairments and quality control of medical equipment.

Choosing maintenance strategy is one of the most complex and essential processes that can affect the safety and cost of equipment. The main aim of this study was to determine a risk-based maintenance policy for improvement of the safety and maintenance indices.
Material and According to literature reviews and constraints associated with the studied industry, a number of safety and maintenance indices were selected and their values were measured. Next, in order to promote the selected indices, the best policy was implemented on nine critical machines of the company based on criteria such as cost, risk and availability in the framework of the fuzzy network analysis process. Finally, after six months period, the indices were re-measured. The Wilcoxon test was used to assess the changes in the indices.
In the implementation of the model, condition based maintenance was more effective than other strategies. Following the intervention, the improvement of safety and maintenance indices was statistically significant. The statistical analyses demonstrated that indices like reliability, availability, mean time between failures, and the number of dangerous failures all were improved significantly (P The results showed that the simultaneous use of three criteria, i.e. cost, risk and availability in maintenance planning could reduce equipment-related accidents. Finally, the recommended model can improve the efficiency and competitiveness of organizations by increasing availability and reducing equipment costs

The importance of attracting and sustaining volunteers and people’s participation is so much that all the efforts and activities of the Red Crescent population are defined. The present study investigates the effective factors of attracting and maintaining volunteers in the Red Crescent society of Khorasan Razavi province.
This study is conducted as a cross-sectional survey, in which 350 of questionnaire were completed among volunteers from the Red Crescent Society of Khorasan Razavi. Studied sample was selected among the branches of high potential, low potential and semi potential areas of Khorasan Razavi province using stratified sampling method.
Findings: Volunteers attract to Red Crescent to aiming to learn about the safety. Having the appropriate skills for the activities of the Red Crescent, mouth-to-mouth advertising through friends and other family members, and media and environmental advertising are considered as effective factors in attracting volunteers. In addition, satisfaction of the nature and content of the activity has been the most important factor to maintain volunteers. It means that if the activity which a member performs is happier, more transparent (in terms of description of tasks) and appropriate to his interests, likelihood of maintaining is increased.
Enhancing the motivation of volunteers is a key trend in social development and participation in society, then it is necessary to think of achieving to goal in a desirable manner. Lots of solutions in attracting and maintaining volunteers is refers to promote and improve the awareness and recognition of members of the goals and activities about Red Crescent before and after of membership. On the other hand, whit proper planning of activities Red Crescent would be able to use interest of volunteer’s in cautiously and targeted manner to achieve its goals.

Maintenance is an important tool for the petrochemical industries to prevent of accidents and increase operational and process safety success. The purpose of this study was to identify the possible causes of incidents caused by human error in the petrochemical maintenance activities by using Human Factors Analysis and Classification System (HFACS).
This study is a cross-sectional analysis that was conducted in Zagros Petrochemical Company, Asaluyeh-Iran. A checklist of human error-induced incidents was developed based on four HFACS main levels and nineteen sub-groups. Hierarchical task analysis (HTA) technique was used to identify maintenance activities and tasks. The main causes of possible incidents were identified by checklist and recorded. Corrective and preventive actions were defined depending on priority.
The content analysis of worksheets of 444 activities showed 37.6% of the causes at the level of unsafe actions, 27.5% at the level of unsafe supervision, 20.9% at the level of preconditions for unsafe acts and 14% of the causes at the level of organizational effects. The HFACS sub-groups showed errors (24.36%) inadequate supervision (14.89%) and violations (13.26%) with the most frequency.
In order to prevent and reduce the occurrence of the identified errors, reducing the rate of the detected errors is crucial. Findings of this study showed that appropriate controlling measures such as periodical training of work procedures and supervision improvement decrease the human error-induced incidents in petrochemical industry maintenance.