فهرست مطالب

  • Volume:6 Issue: 4, 2020
  • تاریخ انتشار: 1398/12/21
  • تعداد عناوین: 7
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  • Mohammad khandan, Zahra Arab, Somayeh Momenyan, Alireza Koohpaei* Pages 1330-1335

    It is clear that safety in healthcare centres in both fields of staffs and patients is under influence of various factors and needs considering organizational and psychological variables. This study aimed to find the effects of organizational citizenship behaviour (OCB), patient safety climate (PSC) and fatalism on occupational accidents among nurses and nursing aids in one of the non-governmental hospitals in Qom, 2017. Two hundred people from the study population were selected by simple random sampling method and entered the study. A researcher-made demographics questionnaire, Williamson et al. questionnaire for fatalism and valid questionnaires for PSC and OCB were tools to gather data. The relationship between the variables was analyzed using ANOVA and T-test through SPSS V20 and structural equation was done by AMOS V8.8. One hundred and seventy-seven questionnaires out of 200 ones were entered into the analysis phase. Women with 104 (58.8%) were the most frequent and 71.8% of participants were married. Participants had an average age of 34.2(±9.37) years. Reliability of the questionnaires was acceptable. Analysis depicted effects of fatalism on occupational accidents (β=0.15), the patient safety climate on OCB (β=0.13), and OCB on occupational accidents (β=- 0.13) (p<0.05). Observations illustrated that the studied subjects were in a relatively moderate level in all three factors. The Psychosprit factor of fatalism and organizational factor of OCB was related with occupational accidents, and PSC also with OCB

    Keywords: Fatalism, Organizational citizenship behaviour, Patient safety, Occupational accidents, Healthcare
  • Mansooreh Dehghani, marziyeh ansari shiri, Narges Shamsedini*, Samaneh Shahsavani, Fatemeh Jamshidi Pages 1336-1342

    The textile industry produces a large amount of polluted effluents discharged into the environment. Therefore, this research was carried out to compare the efficiency of removal of Reactive red 198 (RR–198) dye by fenton and photo– fenton processes and determine the optimal conditions for maximum removal. This study was conducted on a laboratory scale. The effect of influential parameters, including pH (3–9), Fe(II) concentration (10–200mg/L), H2O2 concentration (25–150mg/L), dye concentration (50–200mg/L) and reaction time (15–90min.) on dye removal was investigated and the optimal conditions were determined according to the maximum dye removal efficiency. The results indicated that the dye removal rate increased as the pH and Fe(II) concentration decreased. The optimal conditions for RR–198 removals from the aqueous solution are pH of 3, Fe (II) concentration of 10mg/L, H2O2 concentration of 50mg/L, the initial dye concentration of 50mg/L, and the reaction time of 15min.. The maximum dye removal efficiency under optimal conditions was 98.82%. The results of this study revealed that the photo–fenton process was superior to the removal of dye compared to fenton process.

    Keywords: : Dye removal, Reactive Red 198, Fenton, Photo–Fenton
  • Marzieh Abbassinia, Mohsen Aliabadi*, Safoora Karimi, Ebrahim Darvishi Pages 1337-1343

    The cell phone has become an essential part of life, however, in developing countries, knowledge and awareness of users about its adverse health effects have not enough increased. This study aimed to develop a questionnaire to investigate knowledge, attitude and practice regarding health hazards of the cell phone among college students. In this cross-sectional study, 230 graduate students of University of medical sciences located in Hamadan (western province of Iran) were participated, randomly. A developed self-administered questionnaire was completed by each participant to assess knowledge, attitude and practice regarding health hazards of the cell phone. The data was analyzed using SPSS 21. The results showed that the content validity ratio and the content validity index of the developed questionnaire were 0.915, 0.79, respectively. Cronbach (alpha), as a criterion of the reliability of the developed questionnaire, was also equal to 0.85. The scores of knowledge, attitudes and practice among the students were 7.95±2.5, 74.78±8.8, and 28.91±9.0, respectively. Relative to the maximum achievable scores, the acquired scores of attitudes was more acceptable than the others. Moreover, the acquired scores of the knowledge were more than the practice. The scientific controversy about health risks of the cell phones aggravated the public concerns about not well-known effects and consequently, it supported and motivated good attitude among student users. Moreover, it seems that the lack of proper knowledge about cell phone health hazards and protection principles can influence adequate practices. As low as reasonably achievable (ALARA) principle should be adopted for uses of the cell phone, while a major effort is done for monitoring of its new potential health impacts.

    Keywords: Cell Phone, Health Hazards, Knowledge, Attitude, Practice
  • Ahmadreza Yazdanbakhsh, Mohammad Rafiee, Masumeh Alimoradi* Pages 1344-1347

    The goals of this study were to assess the microbiological quality and coastal water quality index (CWQI) in the Persian Gulf alongshore of Bandar Abbas city. Water samples were collected from five different coastal sites in spring and summer seasons. To assess the microbiological quality: Total Coliforms, Fecal Coliforms, Fecal Streptococci and Clostridium perfringens were measured. Also, eight physicochemical parameters (DO, BOD, TSS, Turbidity, Temperature, pH, Nitrate, Phosphate) were examined for calculating the CWQI. The mean for microbiological indicators was respectively, 3667, 1055, 50, 211 MPN/100ml. for physicochemical parameters, the average of water temperature was 32 °C, electrical conductivity was 57mmho/cm, the turbidity was 70.7 NTU, pH 8.1, and also the average concentration of phosphate, nitrate, nitrite, and ammonium was 180, 18.2, 4.9, 12.16μmol/L, and the mean of concentration BOD, COD and DO were 4.89, 11 and 6.8mg/L, respectively. In addition, the water quality index for all months and at selected stations was 65. The results showed that in the most samples the levels of microbiological indicators were exceeded the national standard and guideline values. Also, the computed CWQI showed that quality of water was weak. All the extracted results are closely related to the inlets connected to the sea. These inlets except the Ghadir station will affect the rest of the stations. In general, in low tide, the Bactria index was more than high tide

    Keywords: Microbiological Quality, Water Quality Index, Coastal Waters, Persian Gulf
  • Sajjad Rostamzadeh, Mahnaz Saremi *, Hashem Vahabzadeh, Monshi, Pravin Yazdanparast Pages 1348-1354

    Hand strength is necessary for many daily, working and leisure activities. The aim of this study was to determine the predictors of handgrip and pinch strengths among Iranian young adults. A cross-sectional study was designed in which 716 young adults (354 males, 24.1 years ± 3.2; 362 females, 23.1 years ± 3.6) participated. Demographic characteristics, as well as the length of the hand, palm and forearm, the palm width, and the circumference of wrist and forearm, were measured. A tape meter (± 0.1cm), and a digital Caliper (± 0.1 mm) were used to measure anthropometric dimensions. Jamar hydraulic dynamometer and pinch gauge were used to measure Hand Grip Strength (HGS) as well as Tip (TP), Key (KP) and Palmar (PP) pinch strengths. Mean values of HGS, TP, KP and PP varied from 25.6 to 80, 4.1 to 8.7, 6.4 to 14.7 and 5.4 to 12.7Kg in men and from 14 to 39, 3.2 to 6.0, 4.7 to 8.1 and 3.4 to 9.3Kg in women, respectively. Multiple linear regression analysis showed gender, age, height and BMI as the best predictors of hand strengths. The values of hand strengths are easily predictable using a few readily available individual attributes. Results may serve as a benchmark for job selection.

    Keywords: Hand Strengths, Jamar Dynamometer, Pinch Gauge, Grip
  • Sahram Vosoughi*, Sajjad Rostamzadeh, Mohammad Hossein Chalak, Ali Asghar Farshad, Masoud Jahanpanah Pages 1355-1365

    Falling from height known as one of the most important factors that leads to fatal accidents in the construction industry.The purpose of this study was to investigate,identify the effective factors in the occurrence of falling from heightaccidents in the construction projects,determine the causal relationships between organizational,individual andenvironmental factors.In this research,the surveyed population was the workers of five construction projects of a gas refinery in south ofIran from 2011 to 2015. Using the Integrated Management System (IMS) information,factors,sub-factors affectingthe occurrence of falling from height accidents in the construction projects were determined. Then,a semi-comparativequestionnaire based on the DEMATEL technique was designed,distributed among 10 experts at two differentperiods. Based on the expert's opinions,the identified factors,sub-factors were classified into three main factorsand fourteen sub-factors,respectively. Then,the causal relationships between each the effective factor were identified,using DEMATEL technique.The results of DEMATEL technique revealed that the individual factors were considered to be the most importantcriteria,as it has acquired the maximum (𝐷 + 𝑅) value,i.e.,36.689 whereas,organizational factors had scored theleast,i.e.,35.180. Accordingly,organizational factors,their sub-factors had a substantial effect on the falling fromheight accidents,were considered as causal variables (D-R>0),while,the indices of individual,environmentalfactors were the effect variables (D-R<0). So that,mutual understanding was an organizational sub-factor that had thehighest impact on the occurrence of falling from height,has been identified as a causal variable.Generally,it is necessary to consider specific plans such as stress management,safety culture programs in orderto reduce unsafe conditions in the construction projects

    Keywords: Falling from Height, DEMATEL Technique, Construction Projects
  • Milad Safari, Seyed Shamseddin Alizadeh, Homayoun Sadeghi Bazargani, Atefeh Aliashrafi, Azam Maleki, Parosa Moshashaei, Mohammad Shakerkhatibi* Pages 1366-1376

    As a matter of growing machinery life, traffic crashes are considered an inevitable source of injuries and costs around the world. Regarding to increasing traffic accident outcomes, controlling the current status is necessary. In this way, identifying risk factors affecting the crash severity is an essential step toward initiating a convincing solution. The core objective of this study was to categorize the risk factors affecting the severity of crashes. Data needed for this study were gathered through searching Web of Science, Google Scholar, and Science Direct databases using the keywords included fatal and crash, injuries and crash, fatal and traffic accident, and injuries and traffic accident. Based on 83 selected studies for review, factors affecting the crash severity divided into five factors and forty-seven subfactors. The most prevalent sub-factors were age, sex, safety belts, alcohol and drug use, speed, weather conditions, lighting conditions, time of the day and week, vehicle kind, road condition, collision type and crash location. Many risk factors affect crash severity and determination of the most important ones can be a prelude in reducing the effects. Therefore, the conclusion of this review can assist to traffic safety experts, police and contribute to distinguishing and monitoring the risk factors affecting crash severity transportation agencies.

    Keywords: Traffic, Crash Severity, Risk-Factors, Road Transport System