Volume 4, Issue 1 (Winter 2019)
Abstract
Aims: Musculoskeletal disorders (MSDs) are of concern in health problem with highest prevalence and are one of the causes of occupational disability in Medical care professions (MCPs). This study aimed to describe the rate of MSDs among MCPs who working in Lorestan hospitals, Iran.
Instruments & Methods: Using a convenience sampling in this descriptive study, 100 MCPs from two hospitals of Azna and Aligodarz of Lorestan province were selected. Data collected through a demographic questionnaire by which the questions regarding different MSDs were asked. Date were entered into SPSS 21 and analysed using descriptive analysis.
Findings: Totally, 100 MCPs took part in the study and responded to the questions (responded rate 100%). Back pain and neck pain were the most common area of participants’ complains respectively. Eighty seven participants (88%) of the MCPs stated they did not follow any pain treatment or pain management. Furthermore, the majority of the participants (N=64, 64%) of the participants believed that stress has not significant associate with their pain. However, thirty six participants (36%) stated that their pain has been worsening with increased stress.
Conclusions: This study revealed that the majority of the studied MCPs suffered from a kind if MSDs without any pain treatment/ management work up. Therefore, dong more studied to confirm these results in this special target group working in these hospitals and to explore the causes of pain is strongly recommended.
Volume 6, Issue 3 (Summer 2021)
Abstract
Aim: Musculoskeletal pain is one of the most prevalent causes of disability worldwide.The aim of this study was to assess the effects of a designed interventional program on promoting the knowledge, attitude and practice among clinical workers who working in hospitals of Lorestan, Iran.
Method and Materials: In total 80 clinical workers of two hospitals of Lorestan province in were assessed in groups of intervention (N= 40) and control (N=40). These participants completed the demographic and researcher - made questionnaires as well as Visual Analog Scale (VAS) at the beginning of the study. Just the Intervention group were trained with educational program. The data based on researcher - made questionnaire and VAS were collected at 3- month follow up and analyzed using SPSS version 19.
Findings: Totally, 40 clinical workers in each group of intervention and control with mean age of (33.18±6.025) and (31.40± 6.732) were assessed respectively. Both groups were the same in terms of all studied variables at initial of the study (p > 0.05). However, there was
a significant difference between the groups at 3- month follow up in terms of knowledge, attitude and practice (p<0.0001). Furthermore, the mean score low back pain behavior in intervention group (18.35±.5.30) was significantly improved in comparison with the control group (16.05±4.52) (p<0.001).
Conclusion:This study showed the educational program was benefit to improve the knowledge, attitude and behavior of regarding preventing low back pain among clinical workers among Lorestan hospitals in Iran.
Volume 6, Issue 4 (Fall 2021)
Abstract
Aims: Low Back Pain (LBP) is a serious and prevalent health problem, especially worldwide. This study evaluated the impact of an interventional program on promoting the knowledge, attitude and practice among a clinical worker to prevent low back pain in Lorestan hospitals,
Iran.
Method and Materials: in this interventional study, 80 clinical workers who were working in the two hospitals of Lorestan province in Iran, were divided randomly into an intervention (N=40) and control (N=40) group. The intervention group took part in the itervenional program while the control group received no intervention. The demographic questionnaire and a researcher - made questionnaire were used.
Findings: In all 40 clinical workers in each group of intervention with mean age of 33.18±6.025 years and control group with mean age of 31.40± 6.732 years took part in the study. The mean scores of knowledge, in the control group versus intervention group, immediately after
intervention, 3-, and 6 - months follow-up were 13.00±1.79 vs 13.28 ±2.21, 13.03±2.15 vs 14.93±1.28, and 13.03±2.15 vs 14.38±1.67 respectively which were significant in two time points of 3- and 6- month follow ups (P<0.05) . Regarding, the mean scores of attitude the scores of control versus intervention group were 39.386.45± vs 40.136.86±, 39.55±6.11vs 43.98±4.81, and 39.43±5.64 vs 43.60±5.74, respectively; and for behavior the scores in control vs intervention group were 16.96±6.90 vs 15.05±4.52; 16.05± 4.5 vs 18.35±5.30, and 16.00±4.60 vs 18.13±4.80, respectively.
Conclusions: This study showed that the interventional program is an effective intervention to promote preventive behavior of LBP in clinical workers.
F. Boshagh , Kh. Rostami , N. Moazemi ,
Volume 10, Issue 1 (Winter 2019)
Abstract
Introduction: Biofuel production from renewable resource has been extensively paid attention as a sustainable alternative for fossil fuel. As the feed of third-generation biofuels, microalgae can produce variety of lipids, proteins, and carbohydrates in large quantities and in a relatively short time. Regarding the compatibility of these microorganisms with culture diffrent conditions and independence from the seasons of the year, the rapid growth rate, absorbing carbon dioxide and improving air quality, renewablity, non-competing with food supplies, the existence of large quantities of lipid and carbohydrate inside their cells, and abillity of biofuels production, microalgae are known as one of the most suitable options for the biofuels production. Biofuel production from microalgae consists of several stages, including cultivation, harvesting, drying, cell disruption, extraction (lipids or carbohydrates), and the production of biofuels.
Conclusion: In the present study, by reviewing each stage of the biofuels production from microalgae, its importance and application for bioenergy production is discussed. Algal biofuel is not yet competitive with fossil fuels due to its high costs. Researchers are trying to produce economic algal biofuel by improving the growth of microalgae and enriching their reserves of oil and carbohydrates, creating genetic changes, improving the design of photobioreactros, developing harvesting and drying methods, improving methods of extracting lipid and carbohydrate, and producing valuable products.
Volume 21, Issue 9 (September 2021)
Abstract
In present study, the stress and strain distributions due to the radiant gradient in some radiant tube burners have been investigated. In the design of the burner, several outlet valves are mounted on the wall of the burner tube and the combustion-produced fluid is discharged by the outlets into the furnace. For this purpose, three cylindrical radiant tubes with the same length, diameter, thickness and material and difference in design of fluid outlets are modeled. To simulate the mechanical behavior of the pipes, after the geometric modeling and considering the pipe material and boundary conditions, ANSYS commercial software has been used. The boundary conditions for numerical solution are extracted from the results of the experimental tests. Due to the average fluid velocity within the radial tube, the fluid flow falls into the turbulent range. In order to obtain the stress-strain diagram of the tested alloy, the Ramberg-Osgood equation is used. Due to the solution of the fluid-solid interaction by ANSYS, the best design is concluded through the Von-Mises stress minimum values. Also, by removing the thermal load from the next load step, the residual stresses generated in the samples are calculated. To illustrate the accuracy of the solution, some specimens of the burner have been made and evaluated to verify the numerical solution.
