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Showing 24 results for Abbasi
Abbasi, Abdolhossein Poornajaf,
Volume 17, Issue 1 (4-2009)
Abstract
Abstract
Introduction: Decrease in hearing ability due to noises is considered the most common incidence in workshops with more than 50 workers. As the first step, one should try to investigate the destructive factors causing such damages to the workers’ audio-abilities in order to find the best possible solutions. Thus, we decided to perform this study in Ilam (western Iran) workshops of over 50 workers to see the fall-rate in their audio abilities.
Materials and Methods: This descriptive analytic study was fulfilled in a certain span of time covering working-places occupied by more than 50 members, using voice-measuring techniques and principles of voice such as: voice pressure, rising up of noise level NIHL for both the left& right ears measured and recorded via Bone and phone.
Those studied in this study entirely belong to work-shops with more than 50 workers among whom two out of three were randomly picked up to be registered and studied demographically. Using the “SPSS” soft ware, the recorded data were analyzed. To classify the rate of hearing decrease in this research , soft low hearing , medium low hearing , strict low hearing , deep low hearing or ever lasting deaf were recorded in db ,63,625,125,1000,2000 ,4000, 8000 figures.
Findings: It was found out that 13/1 percent of all those covered in this study who were under higher pressure of noise rate suffered from hearing problem. Furthermore, 12/2 percent of the workers complained from noisy feeling following their daily performances.
Discussion & Conclusion: Findings revealed that the most loss to hearing ability was due to the left ear from Bone and phone in 2000/4000/8000 frequency, HZ. This can be regarded as a higher sensitivity of left ear compared to that of the right one in reaction to voice, or the workers’ positions at work place, where their left ear is more exposed to noise or in out of work-places like accidents , controversies and physical contacts exposing left ear to strikes.
It was also concluded that the most loss of hearing ability via Bone and Phone in right ear belonged to 4000/8000 HZ, while the highest loss of hearing ability went for left ear in 4000/8000 H
F Zayeri, Ar Akbarzadeh Baghban, M Kazemzadeh, M Yaseri, Am Abbasi,
Volume 20, Issue 4 (2-2013)
Abstract
Missing values are frequently seen in data sets of research studies conducted in diff-erent sciences such as medicine and esp-ecially in longitudinal studies in which every individual are exposed to the repeated measures over time. In the last few decades, a vast majority of statistical activities has been done in this area, including the areas of concepts, issues, and theoretical and soft-ware methods. Despite the widespread use of the results of these statistical activities, the researchers, in many cases, have been seen to have a vague impression from these concepts which results in inaccurate infer-ences. Therefore, given the importance of the issue and the need for the scientific community to know these issues correctly and accurately, the current study is set to review and compare the concepts such as missing data patterns and mechanism, as well as the existing models in analyzing longitudinal data with missing values. Furt-hermore, their application will be explored in the data obtained from a clinical trial of addiction treatment with a continuous res-ponse variable.
M Abbasi Asl, M Salehi, A Fatemeh Hosaini, F Zayeri, A Nasrollahi,
Volume 20, Issue 5 (3-2013)
Abstract
Inharmonious growth and mutation in provinces of country in cultural, economic and social characteristic in recent years, requires carefully plan for justly development in different areas. These plans essentially have to be integrated with inherent features of each zone and then, these plans are well enough to improve the quality of promotion. This study has been done according to health indices in Iran in order to identifying different poles over the country. Methods Homogeneous clusters have been calculated by using fuzzy clustering method and R statistical software, based on health indices in year 1385. The data are collected in help of department of Health in the Ministry of Health and Medical Education. Results Firstly, the Provinces of country have been divided to two clusters based on a cluster validity index. Then, again in order to minimize the length of each cluster, clusters repartitioned to two new clusters based on the validity index. The resulted clusters are homogeneous in structure. Discussion Based on geographic pattern of clusters and analyzing the status of each cluster and considering the advantages and disadvantages of them, it is possible to propose good health and care services in each province with respect to the inherent properties of each province.
M Zamanian Azodi, Ar Ardashiri Lajimi, N Ahmadi, S Gilanchi, N Abbasi, A Hematian,
Volume 20, Issue 5 (3-2013)
Abstract
Introduction: Bacteria have become resistant to some kinds of antibiotics. Therefore, more reliable sources are vital to be examined. Some types of herbals have been shown promising for therapeutic points, so they could be applied in the field of medicine. Scrophularia consist of different biological activities such as antimicrobial, antitumor and anti-inflammatory activities. Consequently, its effect on Staphylococcus aureus has been studied.
Material & Methods: Antibiotic effects of both filtered and non-filtered extract of Scrophularia striata on Staphylococcus aureus as gram-positive bacterium were evaluated by spectrophotometer. Simultaneously tetracycline was used as a positive control at different concentrations. In addition, MTT assay was applied for cell survival determination.
Findings: Our findings point out that concentration between 1 to 20 µg/ml of the extract has remarkable antibiotic activities. In addition to this, there is no obvious difference between filtered and non-filtered antibiotic activities of this extract. On the other hand, fibroblast cells show absolutely different response when treated with the same extract.
Discussion & Conclusion: It can be concluded that, the Scrophularia striata aqueous extract has significant antibiotic activity and with less side effects than tetracycline. As a result, Scrophularia striata extract can be regard as a probable antibiotic agent in the future studies additionally, more investigation is needed for evaluating in vivo outcomes, and the effective materials of the extract component
S Zare, N Shabani, V Sarsangi, A Babaee Haidar Abadi, R Aminizade, V Arab Parizi, Am Abbasi,
Volume 20, Issue 5 (3-2013)
Abstract
Mine working environment has been considered one of the most high risk environments. 85 per cent of the work accidents are attributable to unsafe working conditions. 85 to 95 per cent of these accidents are attributed to attitudes, culture and behaviour. The safety climate is a multi-faceted construct which shows the individuals’ attitudes towards and priority they set upon the safety in working environment. Measuring safety climate provides a glimpse of safety condition in an organization in a given time. The present research is an attempt to study safety climate and its structural aspects in Gol gohar mine complex in Sirjan, Iran. The cross-sectional and descriptive-analytical research has been carried out during the winter of 2012on 534 workers in the Sirjan Gol Gol gohar mining and industrial company as subjects. The safety climate questionnaire has been used to measure the safety climate. The findings indicate that production pressure with the score of 5.38 was the least effective factor, and training with the score of 7.70 was the most effective factor. The total score of safety climate has been calculated in a 1 to10 scale for the 6.35 score location. The safety climate of the mine has been shown to be moderate.
Rohollah Maghsoodi Moghadam, Rosita Farhadi, Farhad Farasati, Alimohamad Abbasi ,
Volume 21, Issue 6 (12-2013)
Abstract
Introduction: Work-related musculoskeletal disorders occur due to cumulative destruction of the tissue, tendons and the joints. To prevent these injuries requires both assessing and improving working conditions. The aim of this study, performed in 2012, was to assess musculoskeletal disorders risk Factors arising from work conditions. To do this, QEC method has been used.
Materials & Methods: In this descriptive-sectional study, 12 job posts and, in sum, 162 workers were selected as the sample. In order to assess the level of the risk of being afflicted by muscular-skeletal disorders, QEC method has been used, and the data collected were analyzed through either SPSS-16 and the T-test, ANOVA and X2 are analyzed.
Findings: The average of age, years of service, and BMI for the subjects being studied were 37.03 +7.22 years, 12.14+ 6.53years, and 26.22+ 3.88 respectively. The highest percentage and mean of exposure score relate to waist and its related organs (33.3% and very high (41-56)), the wrist/hand (32/7% and the high (31-40)), shoulder and the arm (32.7% and very high (41-56)), neck (40.7% and the average (8-10)) respectively. And the whole body (39.5% and at the 4th level of risk being more than 70%) which needs immediate reformatory measures. The findings of X2 Test showed that there is a significant relationship between the levels of total risk of QEC and the level of exposure to the risk in four areas of the body (neck, waist, shoulders/arms, and wrists/hands) within the society (P<0.05).
Discussion & Conclusion: Improper posture of the body, redundant movements, vibration, stress, and so on enhance the risk of muscular-skeletal disorders in the industry being studied. Ergonomic interventions in sections having a high risk level are required.
J Amiri, Sh Amiri, P Tork, M Abbasi, S P Shirmardi,
Volume 22, Issue 2 (6-2014)
Abstract
Investigation observation standards of security and dosimetry at x-ray imaging center hospitals Subsidiary Ilam University of medical sciences
Jamal Amiri 1, Shahin Amiri2, Parvin Tork1,Mohmad hasan Abbasi 1, Seyed Pezhman Shirmardi *3
Introduction: Standards observation in imaging centers cause to patient dose reduction in patients and improving image quality. Identification standards and determine the gap own facilities with standard centers is a necessity for standardization. In this article, Standards level in imaging centers have been studied in Ilam province.
Materials & Methods: Dose was measured in the controlled, monitored and uncontrolled region for each center. Czech list contains 210 items were prepared by using standard values in the world and Iran. Separately, Czech list were completed for each center. Level standard calculated at sections: building and construction, Preparation and usage of equipment, Protection of staff and patients, Patient rights and staff salaries for all hospitals and presented as percentage of standard. Level of patient information has been checked about radiation effects by using the questionnaire.
Findings: Level of dose were standard in controlled monitored and uncontrolled region all of centers. Generally the level standards in Ilam imaging centers were obtained at sections: Building and construction 64.9 ℅, Preparation and usage of equipment 69.4℅, Protective staff and patients 80.03℅, Rights of patients 81.7℅ and staff rights almost 100%. Patient imaging centers were aware of effects of radiation on cell were 28%.
Conclusion: In this study, the level of standard and distance to the full the level of standardization Were determined for all centers.The level of gap with completely standardization of imaging centers in the province is building and construction section35.1℅, preparing and application of equipment 30.6℅, Protection of staff and patients 19.97℅, Patient rights 18.3%. As well as patient imaging centers not informed about the effects of radiation on cells were 72%.
Somaye Abbasi, Mohammadreza Hadian, Mehdi Abdolvahab, Mahmood Jalili, Shohre Jalaie,
Volume 23, Issue 2 (inpress 2015)
Abstract
Introduction: Importance of upper limb function is clear in creating individual autonomy and daily activities. In this context, the role of dexterity is debatable in meeting of this important requirement since after stroke major problems are occurred in hand function in particular dexterity. The present study, studied the effect of progressive resistance exercise on strength and dexterity of upper limb among adult hemiplegic patients.
Materials & methods: This interventional research was performed on 17 adult hemiplegic patients after approving by TUMS ethical committee. After consent and introducing of test method, isometric strength of shoulder extensor and abductor muscles was evaluated by manual muscle assessment (MMT) and Pinch muscles strength by Pinch Gauge and Grip muscles strength by Jamar Dynamometer in kilograms and dexterity rate was evaluated by Minnesota manual dexterity test based on number in seconds and the results were recorded. Clients benefited from 6 intervention weeks. The resistance was offered to patients was set by weights which were attached to pulley. They were evaluated every two weeks and with the isometric muscle strength development more resistant is created in sinkers weight.
Findings: Results of this study showed that, after intervention period , progressive resistance exercises led to significant improvements in shoulder abductor and extensor muscles isometric strength, Pinch and Grip muscles strength and dexterity variables (P =0 / 000).
Discussion & Conclusion: Present study showed that in rehabilitation of hemiplegia, to increase shoulder extensor and abductor muscles isometric strengths, Pinch and Grip muscles strength and finally improvement of hand function, especially dexterity can utilize in treatment of progressive resistance exercises.
Fazlollah Mousavi, Maryam Agha Abbasi, Marzieh Moosavi, Bahareh Shaghaghi,
Volume 23, Issue 3 (9-2015)
Abstract
Introduction: Enterococci are normal flora in the human intestinal tract and vagina and are growing its importance as hospital-acquired pathogen. E. faecalis and E. faecium are two predominant speices causing infection. The aim of this study was to investigate on prevalence of enterococus and its antibiotic resistance in isolated samples from vagina.
Material & methods: Isolates samples were obtained from women with spontaneous abortions (n=198) and were identified to the genus and species level by cultural characteristics and biochemical tests. The susceptibility of the isolates samples to antibiotic drugs was determind by the Kirby-Bauer Disk Diffusion Susceptibility Test Protocol.
Findings: From all of the specimens, 128 cases confirmed as Enterococcus. (63.2%) and (35.1%) strains were Enterococcus faecalis and E. faecium, respectively. All of the isolates samples were susceptible to imipenem and resisrant to oxacilin. Resistance of the isolates samples to antibiotics were as follows: vancomycin (3.1%), tecoplanin (18.2%), ciprofloxacin (11.1%), chloramphenicol (15/8%), erythromycin (63.4%), Cefotaxime (36.6%), gentamicine (29.3%).
Discussion & Conclusion: In examined cases from this research, enterococcus was detected in 63.2% of cases. Given that the presence of these bacteria in the vaginal flora of 20% as reported, the results of this study are more than expected. Since all samples were sensitive to imipenem, it is recommended that it be used for treatment.
Jamal Amiri, Sayed Pzhmane Shirmardi, Shahin Amiri, Mohamad Hassan Abbasi, Jamil Abdolmohamadi,
Volume 23, Issue 6 (1-2016)
Abstract
Introduction: Background radiation is originated from environmental radioactive sources cosmicandterrestrial.Materials distribution onsurface of the earth and height from sea level are not the same at various points.Absorbed dose caused by them were different at various points.In this research, Background radiation level inoutdoor different areas of Ilam province was measured and effective dose ratecaused by it was calculated.
Materials & methods: RDS -110detector was used to measure background radiation. The metal base with a height of 1m was used for measuring at the same altitude and detector placed on the metal base. Outdoor backgroundradiationwas measured for seven points (The highest altitude, the lowest point North, South, East and West). Measured datawas entered to SPSS16 software for statistical operations. The mean equivalent dose rate andstandard deviation were calculated. By using the dosimetry calculations, the amount of annals effective dose rate in outdoor was calculated for different regions of Ilam province.
Findings: The mean equivalent dose rate caused by outdoor background radiation for different regions of Ilam province was obtained based on unit nSvh-1 include: Ilam 84 ± 10.67, Ivan 82 ± 10.71, Dehloran78 ± 12.61, Abdanan80 ± 11.21, Sirvan97 ± 15.50, Mehran 75 ± 10.31, Malekshahi88 ± 13.78, Dareshahr95 ± 14.15, Badreh85 ± 8.82 and Chardavol93 ± 13.20.The maximum outdoor equivalent dose rate was in Sirvan area with 97 ± 15.50nSvh-1 and minimum value in Mehran area with 75 ± 10.31nSvh-1. The average of outdoor annals equivalent dose rate in entire Ilam province 85.7± 7.5nSvh-1 in comparison average world 59nSvh-1 is more than 44%. Well as annual effective dose rate was 0.107±0.009nSvy -1.
Discussion & Conclusions: Ilam provincehasmore mean-annualequivalent dose rate and effective dose rate compared to global average annualequivalent dose rate and effective dose ratedue to mountainous and relatively high altitude from sea level.
Dr Mohammad Yarmohammadpoor-Beneh- Khalkhal, Dr Saeid Abbasi Maleki, Dr Azam Bakhtiarian,
Volume 25, Issue 5 (1-2018)
Abstract
Introduction: Previous studies have shown sedative, hypnotic, anti-anxiety, and pre-anesthetic properties of Humulus lupulus L. (HL). In the present study, the effect of anesthesia with a combination of HL with ketamine on anesthetic parameters among male rats was evaluated.
Materials & methods: 32 male rats were randomly divided into 4 groups of eight in each and then animals intraperitoneally received Humulus lupulus(HL) (100mg/kg), Ketamine(K) (50 mg/kg), Humulus lupulus with ketamine (HLK) (100mg/kg and 50mg/kg, respectively) and diazepam with ketamine(DK) (2.5 and 50 mg/kg, respectively). Induction time, surgical anesthesia(SA) time, walking time, heart and respiratory rate, temperature, and withdrawal reflexes (lip, tail and pedal pinches) were recorded.
Findings: HL group could not induce SA. However, the induction time, SA, walking time, and even withdrawal reflexes of HLK group were similar to the DK group (p>0.05). K group had late and short anesthesia compared to the other two groups (p<0.05).The heart rate and the respiratory rate of HLK group increased compared to DK group (p<0.05). The body temperature of HLK group was higher than DK group (p<0.05).
Discussion & conclusions: Anesthesia of HLK group was similar to DK group and probably components of the HL extract with GABAergic activity responsible for their pre-anesthetic activity. However, further studies are required to clarify the exact mechanisms of action.
Dr. Reyhaneh Hooshmandabbasi, Prof. Zahra Tootian, Prof. Hasan Morovati, Prof. Simin Fazelipour, Prof. Bahador Shojaei, Dr. Ali Kazemian,
Volume 25, Issue 5 (1-2018)
Abstract
Introduction: Osteoarthritis is the most frequent knee joint disorder among old generation where it causes serious motion limitation. The objective of present study is investigating the effects of a diet containing soybean meal ingestion on relative treatment effect on knee articular cartilage in osteoarthritis induced mice.
Material & methods: Fifty immature female NMRI mice were accidentally divided into five groups. Control group received tap water and normal diet for three months. Sham group, as induced osteoarthritis model, received Ciprofloxacin by stomach Gavage method over two weeks, 20 Mg/kg of their body weight daily. First experimental group were osteoarthritis induced over two weeks and then received null soybean meal diet by three months. The second experimental group, were fed with designed diet based on %15 soybean meal during these three months. The third experimental group was ingested with the designed diet after osteoarthritis induction. After the experimental period, values of cartilage thickness at the middle part of tibial plateau, concentration of the extracellular matrix, and concentration of alkaline phosphatase in blood serum were determined among the groups.
Findings: Comparison between the groups showed that among the groups which were fed with the diet based on %15 soybean meal either with or without osteoarthritis induction, not only the cartilage thickness at the middle part of tibial plateau but also the concentration of the glycoproteins in extracellular matrix was significantly higher than those of the groups which received the normal diet (p<0.05). Furthermore, in those groups which received the designed diet either with or without osteoarthritis induction, more concentration of alkaline phosphatase in blood serum was measured. This difference, however, was not significant.
Discussion & conclusions: Regarding the positive effects of the designed diet based on soybean meal on cartilage, addition of soybean meal in regimen in order to decrease the incidence of articular disorders can be recommended.
Somayeh Heidarizadi, Naser Abbasi, Khairollah Asadollahi, Sara Rezaei, Ardeshir Moayeri, Monireh Azizi,
Volume 26, Issue 1 (5-2018)
Abstract
Introduction: Spinal cord injury (SCI) causes constant irreversible functional deficits. Poor prognosis of such a disease prompts scientists to work on an effective way of treatment. Stem cell transplantation provides a promising strategy for such researchers. Using olfactory ensheathed cells (OECs) has, so far, indicated very good results. Hensce, the purpose of this study was to evaluate the effectiveness of transplanted OECs on functional recovery of delayed phase of SCI in rats.
Materials & Methods: In this survey, eighteen adult male wistar rats were divided into sham, control, vehicle, and treatment groups. Sham group received only laminectomy in the T9 segment of spinal cord, while in other groups, contusion model was induced following laminectomy.7 days after injury, DMEM medium alone or with OECs was injected to the vehicle and treatment groups, respectively. For cell culture, the olfactory mucosa of 7-day-old male wistar rats was used. Locomotor behavior of animals in all the groups was evaluated by BBB, (Basso, Bresnahan and Beattie) test.
Findings: Comparison of the results by the second week to the end of the study illustrated significant changing differences between the OECs receivers and the control group, (p< 0.05).
Discussion & Conclusion: Our investigation demonstrated a positive impact of the OECs on functional recovery in the delayed phase of SCI.
Saeid Abbasi Maleki, Azam Bakhtiarian, Vahid Nikoui,
Volume 26, Issue 4 (11-2018)
Abstract
Introduction: Previous studies have revealed analgesic, anti-inflammatory, and antioxidant properties of Mentha piperita (MP). Hence, in this study, the antidepressant effects of the ethanolic extract of MP in forced swim test (FST) and tail suspension test (TST) in male mice were investigated.
Materials & Methods: In this experimental study, 96 male mice were randomly divided into 12 groups of 8 that received normal saline (10 ml/kg), imipramine (30 mg/kg), fluoxetine (20 mg/kg), and different doses of MP (100, 200 and 400 mg/kg), respectively. In FST, immobility time, swimming time, and climbing time and immobility time in TST were recorded during 6 minutes. In this study, all the drugs and extracts were injected intraperitoneally (i.p.) at the constant volume of 10 ml/kg.
Findings: Results shows that 200 and 400 mg/kg of the extract, as well as fluoxetine and imipramine reduced immobility time compared to the control group in FST and TST (p<0.001). In addition, the ethanolic extract and fluoxetine increased swimming time (p<0.001) without any significant change in climbing time (p>0.05). In contrast, imipramine increased climbing time without any significant change in swimming time (p>0.05).
Discussion & Conclusions: This extract like serotonergic agents (e.g., fluoxetine) decreases immobility time and increases swimming time without any significant change in climbing time. Hence, MP compounds (especially menthol) induced their effects through serotonergic mechanism. However, further studies are needed to clarify their exact mechanism of action.
Pari Nazari, Parichereh Yaghmai, Alireza Rangin, Naser Abbasi,
Volume 26, Issue 4 (11-2018)
Abstract
Introduction: Smyrnium cordifolium is used in traditional medicine to treat anxiety, pain, insomnia and complications of drug addiction syndrome, which is one of the concerns of every community. The use of opioid drugs repeatedly causes physical dependence and tolerance. Dependence can be assessed by the symptoms of sudden withdrawal of the drug by administering a drug antagonist or both. The purpose of this study was to investigate the inhibitory effects of hydroalcoholic extract of this plant on the disorders caused by the addiction withdrawal syndrome in comparison with clonidine.
Materials & Methods: In this experimental study, 48 mice (25-30 gr) were used and divided into 6 groups of 8 and were addicted during seven days. Saline group: this group was nonmorphine-dependent and received normal saline with the equivalent dosage. Groups 2, 3 and 4 treated with S. cordifolium hydroalcoholic extract (SCE): these groups received morphine and SCE (100,200,300 mg/kg) as gavage. Group 5 (clonidine): This group of mice received morphine and clonidine (0.2 mg/kg). Group 6 (control): this group of mice received just morphine. In all the groups, signs of withdrawal syndrome were recorded on the seventh day 30 minute after naloxone injection. The results were analyzed by one-way ANOVA and Tukey’s test at a significant level of P <0.05.
Findings: The results of this study showed that the effect of extract on the number of jumping in the SCE100 compared to the clonidine group decreased significantly (P<0.05) and SCE200 decreased significantly (P<0.01). In the SCE300 group, there was a significant decrease in this regard (P<0.001) compared to the clonidine group. Also, the effect of SCE on the maen number of rearing was ineffective in the SCE100 group, and SCE200 decreased significantly (P<0.05). In the SCE300 group, there was a significant decrease in this respect (P<0.01) compared to the clonidine group. The effect of extract on the number of teeth chatering in the SCE100 group decreased significantly compared to the clonidine group (P<0.05) and SCE200 decreased significantly (P<0.01). In the SCE300 group, there was a significant decrease in this level (P<0.001) compared to the clonidine group.
Discussion & Conclusions: Regarding the results of this study, SCE was capable of reducing the signs of opiate withdrawal in morphine-dependent mice. It is likely to modify the symptoms of the syndrome by activating opioid, gabanergic and serotonergic pathways. However, further studies are needed to determine the exact mechanism of the effect of SCE.
Hadi Abbaszadeh Ghanati, Amir Letafatkar, Ali Abbasi,
Volume 26, Issue 6 (12-2018)
Abstract
Introduction: A potential limitation of current ACL injury prevention training may be a deficit in the transfer of conscious, optimal movement strategies rehearsed during training sessions to automatic movements required for athletic activities. Instructional strategies with an internal focus of attention have traditionally been utilized, but may not be optimal for the acquisition of the control of complex motor skills. Conversely, external-focus instructional strategies may enhance skill acquisition more efficiently and increase the transfer of improved motor skills to sports activities
Objective: The purpose of the current study was investigation of the effect of feedback training utilizing external focus of attention on kinetic, kinematic, and functional factors of active subjects.
Materials and Methods: Twenty-four males (aged 24.83±2.77 years, BMI 22.20±1.8 kg/m2, and weight 72.20±9.30 kg) were randomly assigned to feedback (n=12) and control (n=12) groups. The Feedback group completed training 3 times a week for 8 weeks; training lasted 45 min in each session. Peak knee flexion angle was measured using 3D motion analysis during landing, peak vertical and posterior ground reaction force was measured using force plate set, and functional movement was measured using triple hop test. For data analysis repeated measures analysis of variance, independent-sample, and paired t tests were used.
Findings: Results revealed that feedback training caused significantly increased peak knee flexion angle (p=0.001, pre=44.88±4.89, post=51.26±4.80, effect size=1.266), increased functional movement of subjects (p=0.006, pre=5.11±.51, post=5.21±.49, effect size=0.911), and decreased peek posterior ground reaction force (p=0.011, pre=-303±55.39, post=-271±45.83, effect size=0.877). There was no significant effect in peak vertical ground reaction force (p=0.134, pre=2076±426.79, post=1884±328.18, effect size=0.612 ).
Conclusion: Given the reported significant effect of training on peak hip abduction moment and functional movement of participants, coaches and athletes recommended that to reduce the risk factors associated with anterior cruciate ligament injury and increase athletic functional performance, feedback training should be used during training sessions.
Meghdad Kazemi, Alimohammad Abbasi, Mehrdad Kazemi, Narges Jamshidzadeh, Mohammad Amin Rashidi,
Volume 29, Issue 2 (5-2021)
Abstract
Introduction: Risk assessment is a systematic and essential procedure to determine the effects, events, and consequences of human activities on perilous systems. This study aimed to identify the hazards and determine the total risk of various units of Ilam Gas Refinery.
Materials & Methods: This descriptive-inferential study assessed the risks on 18 various units of Ilam Gas Refinery through a combination of Bow-tie and FMEA methods. Initially, the top event, threats, consequences, as well as preventive and recovery measures were identified using the Bow-tie method. Afterward, Risk Priority Number (multiplying severity, occurrence, and detection) was obtained by FMEA. Finally, the risk level was divided into three groups of low, moderate, and high crisis.
Findings: Based on Bow-Tie, the release activity of H2S gas was introduced as the top event. Furthermore, tank leakage and burst, corrosion and wear of pipes and fittings, human error, poor operating conditions, and natural factors in the threat role, as well as damages to human and environmental resources and financial losses were identified as consequences. Based on FMEA, the hazard of tank leakage and burst with two effects of human and environmental damages was in the level of high (major) crisis and was recognized as the most important hazard.
Discussions & Conclusions: Gas refineries are faced with many hazards due to the nature of the work process. The integrated approach of Bow-tie and FMEA is a suitable method for risk assessment in such industries.
Zahra Tootian, Simin Fazelipour, Mohammad Taghi Sheibani, Hossien Erik-Aghaji, Reyhaneh Hooshmand Abbasi,
Volume 30, Issue 4 (10-2022)
Abstract
Introduction: Aspartame is one of the synthetic sweeteners widely used in the food industry as a sugar substitute in recent decades. The present study aimed to investigate the effect of different doses of aspartame on histological and histomorphometric changes in the stomach in BALB/C mice.
Material & Methods: In this study, 24 BALB/C mice aged three weeks were selected and divided into three experimental groups that received 0.3 ml aspartame solution at doses of 100, 200, and 400 mg/kg body weight, and a control group that received drinking water with the same condition up to nine weeks of age. Eventually, some tissue sections were prepared from the stomachs and stained using the hematoxylin-eosin method. After histological evaluation, the necessary images were prepared and the histomorphometric examination was conducted using an optical microscope equipped with Axiovision software. The thickness of mucosa, submucosa, musculature, and depth of pits was measured and the frequency of parietal cells was calculated in the dimensions of 6.25 × 104 μm2.
(Ethic code: 7506001/6/7)
Findings: Histological results indicated destruction and disruption of the mucosal epithelium and gastric pits and atrophy of gastric glands including glandular cells. In the histomorphometric examination of the non-glandular part, only the thickness of the mucosa had a significant difference in the group receiving the highest dose of aspartame compared to the control group (P<0.05). However, in the evaluation of the glandular part, mucosal and muscle thickness in all three experimental groups and the submucosa thickness in the glandular and non-glandular parts in the experimental group (400 mg body weight) showed a significant increase compared to the control group (P<0.05). Moreover, the depth of gastric pits increased significantly and the frequency of parietal cells had a significant decrease in the experimental groups compared to the control group (P<0.05).
Discussion & Conclusion: Although aspartame may partially play a protective role by decreasing parietal cells, it should be noted that higher doses of aspartame could induce tissue changes in different layers of the stomach. Therefore, it is recommended to use it with more caution.
Rana Roshanfekr, Sadegh Abbasian, Maryam Bastami, Hamdia Ahmad Mirkhan, Fatemeh Ghiasi,
Volume 30, Issue 6 (12-2022)
Abstract
Introduction: Due to the presence of causes of fire in the operating room, that these kinds of accidents likely take place in these places. Therefore, it is necessary for the operating room staff, including the anesthesia team and the operating room, to have sufficient information in order to prevent the accident and function properly during the accident. This study aimed to investigate the knowledge and performance of anesthesia and operating room staff regarding fire sources and ways to prevent and control them.
Material & Methods: A total of 60 anesthesiologists and operating room staff of hospitals affiliated with Ilam University of Medical Sciences participated in this descriptive study by census method. Data collection tools were demographic characteristics form and researcher-made questionnaire. The data were analyzed using SPSS software (version 16).
(Ethic code: IR.MEDILAM.REC.1399.305)
Findings: The results showed that the mean score of staff knowledge was 48.67±10.14, and the knowledge of the majority of the staff was almost at the average level (83.3%). Moreover, the mean performance score of the staff was 12.85± 3.89, and the performance of the majority of the staff was almost at the average level (n=34, 56.7%). The level of performance of the majority of anesthesia personnel regarding the prevention of fire and safety (58.6%) and training to get acquainted with the formation of fire and its control (68.9%) has been relatively high. However, their performance in terms of familiarity with fire extinguishers in the operating room (72.4%), as well as the location and use of the fire alarm system in the operating room was at the average level (44.8%).
Discussion & Conclusion: Based on the research findings, the level of knowledge and performance of the staff about the sources and conditions of fire formation in the operating room was not desirable. Therefore, holding training sessions and courses to improve the performance of these staff during a fire is recommended.
Reza Mohammadi Dehcheshmeh, Sadredin Shojaedin, Ali Abbasi,
Volume 31, Issue 4 (9-2023)
Abstract
Introduction: The aim of anterior cruciate ligament injury prevention programs is to correct or eliminate risk factors and ultimately reduce injury. The present study aimed to investigate the effect of neuromuscular exercises on knee and ankle joint proprioception in male soccer player students prone to anterior cruciate ligament injury.
Material & Methods: In this quasi-experimental research, 24 male soccer players prone to anterior cruciate ligament injury at Khorazmi University of Tehran in 2018 were purposefully selected and randomly assigned to two experimental groups (n=12) and control groups (n=12). Two days before the commencement of neuromuscular training, knee and ankle proprioception assessment was performed on all subjects. The members of the experimental group participated in the neuromuscular training program for six weeks (3 sessions per week). Two days after finishing the training, all subjects were re-evaluated. Data were analyzed in SPSS software (version 22) using Shapiro-Wilk, covariance, and paired t-tests.
Findings: In this study, among 24 students prone to anterior cruciate ligament injury, 12 cases performed neuromuscular training for six weeks. The results demonstrated that knee proprioception (P=0.013) and ankle proprioception (in inversion movement p=0.032, in eversion movement P=0.047) in the experimental group improved significantly after six weeks of neuromuscular training compared to the control group (P≤0.05).
Discussion & Conclusion: As evidenced by the obtained results, the use of neuromuscular training can be recommended to improve the proprioception of the knee and ankle joints and ultimately prevent anterior cruciate ligament injury.
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