The Journal of

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  Background: There is no doubt that one of the effective factors in implementation of projects that have potential hazard can cause irreversible losses. Therefore recognizing potential hazards is of paramount importance.

  Method: The present descriptive-analysis study was conducted at Rudbar Lorestan Dam constructional projects. For recognizing potential hazard in tunneling activities, job safety analysis (JSA) was performed according to OSHA 3071 method and for observing this purpose, the risk assessment matrix was carried out on the basis of MIL-STD-882E standard. Combination of severity and probability of each risk makes it possible to determine the risk level and the priority of control measures, qualitatively rating from 1-24.

  Results: Generally, a total of 232 risk factors were identified in different activities. As results show, %15.9 of recognized risks were serious, %17.3 almost serious, %38.4 medium and %28.4 were in low level. Therefore more than one-third hazards are assessed as unacceptable. Work at heights without using proper lifting, lack of equipment of tunneling treatmentolagy, delay in unstable rock mass support can be enumerated as the causative factors.

  Conclusion: A llocating a percentage of the budget of every construction project to provide safety and rescue equipment as well as experienced safety experts can significantly reduce the risk level.

  For assessment criteria, MIL-STD-882E standard was used and four indices were presented for decision making: serious, almost serious, medium, and low.

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Introduction: Noise and light can affect on body posture during the study. With regard to the importance of the mentioned factors and their effect on body posture, measurement and assessment of these parameters seems essential in the study rooms. This study aimed to measure and assess these factors and their relationship with students' postural status. Methods: In this cross-sectional (descriptive- analytical) study, 167 male and single students in dormitories of Shiraz University of Medical Sciences (SUMS) were selected. Measurement of noise and lighting was done according to the standards of the Iran National Committee on Occupational Health. The RULA method was used to assess the students' posture. Results: In this study, light (433.88 ± 114.83 lux) and sound pressure levels (49.59 ± 4.64 dB) were obtained. The results of assessment of physical exposure to musculoskeletal risks by RULA technique showed that in 34.7% of the studied subjects, the level of exposure to musculoskeletal risks was in Action Level (AC) 2, 41.3% in AC 3 and 24% in AC 4. Results showed no significant correlation between the sound the students' posture, but significant correlation was observed between light and the students' postural status. Conclusion: Posture of students during the study has correlation with light. Therefore, improved lightening can improve student posture and consequently a remarkable help to increase the students comfort.

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Introduction: Vegetables are important things of alimentary diet and beeing exposed to polluted alimentary diet of heavy metals via consumption of vegetables, be carried to account a risk for human health. This thesis have been done with target of appointment of concentration of cadmium, nickel, lead and zinc metals in soil and parsley and health risk assessment of this metals in withdrawed parsley vegetable from some farms in Hamedan city. Methods: This thesis was a applicational studing and for this meaning sampling was done from parsley and soil of 3 farms in Hamedan city with 3 repetition for every farms. In generally, in this survey 9 samples of parsley and 9 samples of soil was evaluated. Samples was digested in laboratory by using of acidic digestion. Then concentration of elements was read by using of atomic publication machinery and for analysis of datas, was used version 19 of SPSS (α=0/05). Results: Average concentration of cadmium, nickel, lead and zinc in parsley vegetable is in the order of 1/14, 2/56, 16/65 and 25/23 mg/kg and average concentration of this metals in soil is in the order of 0/23, 23/51, 20/85 and 57/5 mg/kg. Results of this study showed that average concentration of Cadmium and Leadin parsley is above WHO/FAO whereas average concentration of Nickel and Zink in parsleywas assessed less than WHO/FAO. Also the average concentration of every four metals in soil of farms was less than WHO/FAO levels.On the other hand the amount of risk and health index (HRI) in parsley for lead metal was above 1 and for cadmium, nickel and zinc metals was less than 1. Conclusion: According to the studing results, cultivated parsley in this area was polluted to the heavy metalsCadmium and Lead, and the results indicates the very easy transferring of this metals from soil to parsley that was not healthy for human daily consumption and risk and health index (HRI) that was above 1 for lead metal shows the hygienic potential risk of this metal in relation to the polluted parsley consumption in human daily alimentary diet.

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Introduction: Decisions in health promotion are multidimensional. It means that there are multi criteria situations in decision-making for health promotion. Regarding the importance of designing ast selecting appropriate alternatives, some Multi-Criteria Decision-Making (MCDM) methods for health promotion have been introduced ast explained in this article. Method: Articles published in some reliable data bases such as Web of Sciences, Medline , Ebsco, Science Direct, Google scholar as well as some Persian articles ast dissertations specially in health education ast health promotion fields were reviewed. Results: Reviewing health education ast health promotions articles ast dissertations published in Iran isticated that some decision-making techniques such as Delfi method, Brain Storming ast Nominal Groups ast some other approaches have been applied, but methods with mathematical, theoretical, ast reliable predictive power backgrousts have been ignored. Conclusion: Applying Multi-Criteria Decision-Making methods that typically consider different factors simultaneously with economic assessment are necessary for health education ast health promotion interventions.

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Introduction: The sense of sight is one of the most vital human senses and help the environment gets most of its information. Whatever one's job is more subtle, more work will be given brightness. Good lighting, increase work efficiency and general physiological effects on people's moods. The relationship between low and high frequency illumination accidents there

Methods: This study was conducted in 10 workshops in Yazd home knitting. Due to maximize natural lighting measurements in June and November this year took place in cloudy days. Thus, in both seasons overall lighting, natural and artificial, were evaluated. That, in order to measure all the natural light, artificial light sources (lamps) and the measurements were off by clarifying re-lamp, the overall lighting (natural and artificial) were measured. In order to measure the general lighting provided by the Illuminating Engineering society and stop the pattern surfaces were used. The workshops with less than standard lighting conditions were identified and interventions to improve the brightness of the workshops were measured again.

Results: Average, minimum and maximum overall brightness of spring workshops 4 and 6 respectively, with values of 67/278 and 53/452 is a luxury. Workshops values 5 and 2 47/184 and 43/218 minimum and maximum luxury in order to be daylight in spring.

Conclusions: The majority of the studied weaving Workshops lighting was good, with measures such as proper installation and periodic cleaning and dust lamps, replacement lamps burned by use of fluorescent ambient lighting conditions can be improved.

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Introduction: Waste production from any source would lead to the formation of various pollutants. The existence of these materials and in turn, every non-normative plan designed for waste disposal produces environmentally detrimental effects. Therefore, evaluating positive and negative effects of influential engineering- sanitary projects in environment seem to be necessary such as landfill construction for management of urban health. The present study aimed to evaluate positioning and of municipal solid waste landfills by geological information system (GIS). To this purpose, the required layers were prepared and profit sites were obtained by 3 steps: talent mapping, field survey to study characteristics of suitable areas and EIA by means of Leopold matrix for zonal ranking and selection of optimal location.

Results: To depict talent map, the layers were combined by simple additive weighting method using various data including geology, land use, distance from the city boundaries, slope, distance from roads, vegetation, infiltration and hydrology. The resulted data suggested that four sites were posited in appropriate ranks.

Conclusion: The study findings revealed, that site No.1 (X:256915 & Y:3540127) was determined as the optimum location for engineering - Sanitary landfill.

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Introduction: Persecutors of aircraft noise at an airport has a close relationship with the alternate of landing and take-off weight of the aircraft and operations planning during the night. Now aircraft that spill in Yazd airport and take-off of aircraft is of jet engines or so-turbofan mean that the resulting sound will be very high.

Methods: In this descriptive, cross-sectional  measurement of noise from aircraft traffic noise measuring station 7,The completed questionnaires to assess the effects of noise pollution in Yazd International Airport and the surrounding noise sensitive areas in 2014 by a portable audio device measurement is done.

Results: The most amount of noise caused by aircraft traffic in the airport area and in adjacent areas with average noise level 84.8 dB at station No. 5 Regional Airport, located south of the airport, with an average noise level which was 75.5 dB. The results of analysis of questionnaires showed that 75 percent of people living in residential areas around the airport are being harassed by aircraft noise. Results indicate that, sleep disorders, nervousness, stress and mental illness and interfere with speech, regardless of the priority of different factors in the study area, are of the highest impact of aircraft noise.

Conclusion: Aircraft noise is the strongest negative environmental factors that affect employees and residents around Yazd International Airport and can be harmful to health. The noise for health personnel, particularly those of daily tasks, are daily exposed to aircraft intense noise ,

are highly undesirable. So, essentially preventive severe conditions such as mandatory use of protective devices and soundproof acoustic shortening service personnel are needed for these people.

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Abstract
Background: Our age is the age of planning , planning is especially important for  people’s educational needs.the purpose of this study is to check  out the training needs. Prioritizing needs and designing a lesson education plan based an priorities for the workers of central Iron ore company in bafgh
Analysis method: this research is a qualitatire study using the FGD technique (group discussion) and have been done by 12health professionals and attended by 46 Iron ore workers. The obtained  data were analized using content analysis method.after collecting responses using the matrix table and the nominal group.the needs were prioritized .
Findings:The needs and problems felt by professionals and workers were different .In total conceptual codes ,93Codes were included in five main themes , from the health  professionals,point of  view ,the most needs workforce was occupational disease, while it was it was mental health from the workers, point of view ,the most needs workforce was occupational disease, while it was mental health from the workers, point of view .
Coclusion: physicians seem to less consider the psychological  dimension because of the physical aspect of  their health , and the existing Curriculum to health issues .Therefore,educational content should be designed and implemented in accordance with the health needs of the workers

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Introduction: Due to population growth and subsequent limited water resources, the use of treatment plant effluents is of particular importance. Therefore, this study was conducted to identify the environmental effects of the treatment plant and also to identify critical points or weaknesses of the treatment plant system and provide corrective action to reduce the severity of the effects.
Methods: After visiting the research institute and collecting data (during the years 2017-2018), the energy, consuming materials and output of the system were calculated using the life cycle assessment method. Finally, information on the spread of pollution and consumption was included in the list of index effects. To analyze the obtained information, Simapro software (using ILCD 2011 Midpoint V1.03 method) version 8.5.0.0. was applied.
Results: Based on the research findings, the software depicted the evaluation of the effects in 13 categories and all the information entered in the software according to the impact, has participated in each category of effects, the most effective factors related to chloride, energy consumption and oil.
Conclusion: The results of this study show that the main critical point identified in the treatment plant is related to electricity and the sanitary effluent is in a worse condition than the industrial effluent. However, the environmental impact of industrial effluents should not be neglected. Due to the fact that the MBR (Memberane Bio Reactor) method is considered as one of the best methods of wastewater treatment, it is not recommended to change the treatment method, but with continuous monitoring and management of the system, it is possible to reduce the consumption of raw materials.
 
 

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Introduction: The increasing development of urban life is one of the fundamental challenges in urban management of waste disposal. Solid municipal waste is one of the major problems of governments and urban planners worldwide, especially in coastal cities. This study aimed to design of an advanced linear planning algorithm for coastal landfills with a focus on safety, health, and environmental risks.
Method: This is a qualitative study. Multi-objective optimization presents a mathematical model by evaluating the three risks of health, safety, and environment. First, the data were collected using interviews and qualitative analysis, and then in the second stage, the analysis was presented using model linear planning.
Results: In the risk assessment of the landfill site, the presented computational results can be found that stable models provide unfavorable answers compared to definitive models. This is a natural issue; since in stable models, the worst case scenario is considered to achieve the optimal solution, and therefore the resulting answers are always unfavorable compared to the definitive models.
Conclusion: By analyzing the risk assessment at the landfill site, the causes of accidents and complications resulting from work in this place include unsafe practices or unsafe and unsanitary conditions. In fact, trying to create and improve health, safety, and environmental conditions of landfills in Bandar Abbas city and the increase in reliability confirmed that these two factors are the secondary causes of accidents. The root causes can be considered as a defect in the management system of the landfill site.
 

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Introduction: Social anxiety disorder is an intense and persistent fear of being watched and judged by others. This fear can affect work, school, and other daily activities. This research was conducted with the aim of investigating the mediating role of self-criticism regarding the fear of negative evaluation and social anxiety of medical students.
Methods: This is a correlational research conducted using structural equations. The statistical population of the research consisted of all doctoral students of medical sciences in Yazd in the academic year 1400-1401. The sample size of 227 people was determined and sampling was done by voluntary sampling method. The research tools included the social anxiety scale (Jarabek, 1996), self-criticism (Thompson & Zuroff, 2004) and fear of negative evaluation (Leary, 1983), which was published online. The data were analyzed using Pearson correlation and structural equation modeling, utilizing SPSS26 and Amos24 software.
Results: The direct effect of fear of negative evaluation on social anxiety was significant (P=0/001). the direct effect of self-criticism on social anxiety (P=0/041), and the direct effect of fear of negative evaluation on self-criticism (P=0/001) were significant. Bootstrap results further indicated that the indirect effect of fear of negative evaluation on social anxiety through self-criticism was significant (P=0/019).
Conclusion:These findings highlight self-criticism as a significant mediator between fear of negative evaluation and social anxiety in medical students, emphasizing the importance of addressing self-perception in interventions.