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Search Results: 1 - 10 of 2198 matches for " Alireza Saied "
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Postoperative Drains at the Donor Sites of Iliac-Crest Bone Grafts in Patients Who Had a Single Comminuted Long Bone Fracture  [PDF]
Ali Karbalaeikhani, Alireza Saied
Surgical Science (SS) , 2011, DOI: 10.4236/ss.2011.29095
Abstract: In this clinical trial, 90 patients admitted to orthopedics ward, Shahid Mohammadi Hospital, Bandar Abbass with a long bone fracture, comminuted more than 30%, were randomly divided into two groups. In the first group, after the completion of the operation, a single hemovaccum drain was inserted into the iliac crest wound, the site of cancellous bone removal, whereas the second group didn’t receive a drain. The two groups were followed for at least six months and the results were compared with Chi-Square and T-Tests. The two groups, at the end of the follow up period, had no statistically significant difference with regard to pain severity and need for dressing change (in the immediate postoperative period), hematoma formation and infection. So it seems that drain insertion in the wound of patients in whom cancellous bone is removed from the iliac crest, is not necessary.
The Effect of Fracture of Ulnar Styloid on Rotational Movements of the Forearm after Extraarticular Fractures of Distal Radius  [PDF]
Ali Karbalaeikhani, Alireza Saied, Amirreza Sadeghifar
Surgical Science (SS) , 2011, DOI: 10.4236/ss.2011.24048
Abstract: Introduction: Since distal radius fractures are among the most common fractures encountered in orthopedics and one of their common complications is restriction of rotational movements of the wrist and forearm, iden-tification of factors affecting this loss of motion is of importance. This study was conducted to evaluate the relation between extraarticular distal radius fractures associated with fracture of ulnar styloid and the rota-tional movements of the wrist and forearm. Patients and methods: 47 patients with an extraarticular distal radius fracture were enrolled in a prospective case control study. The patients were visited in regular follow up intervals after treatment and at the final follow up the rotational movements of the forearm were measured. The findings were analyzed with Independent T and Chi-square tests. Findings: Ultimately 23 patients of the group 1 (intact ulnar styloid) and 24 of the group 2 (fractured ulnar styloid) completed the follow up period. At this time supination of the wrist and forearm in group 2 was significantly less than the group 1 (p< 0.001). Conclusion: It seems that the association of an extraarticular distal radius fracture with the fracture of ulnar styloid, at least in short term causes restriction of supination of the forearm, though the mechanism and clinical significance of this finding cannot be easily explained.
Estimation of a Mechanization Index and Its Impact on Energy and Economic Factors in Apple Orchard in Iran
Raheleh Fadavi.,Alireza Keyhani,Seyyed Saied Mohtasebi
Asian Journal of Agriculture and Rural Development , 2012,
Abstract: This study was conducted in the 2008-9 production year in West Azerbaijan province (Uromia Township). The Energy Ratio, Energy Productivity, Economic Productivity and Mechanization Index were estimated for apple production. Data were collected using random sampling for 80 face-to-face respondents. Results showed that the highest share of energy consumption belongs to packaging (57%) followed by irrigation (16%). The highest share of expenses was found to be 34% and 30% for labour and packaging, respectively. Mechanization was considered at three levels including level 1 for spraying only, level 2 for spraying and plotting, and level 3 for spraying and fertilizing operations. The Energy Ratio was found to be less than one for all mechanization levels having the highest value in level 2 (0.58). The highest economic productivity was calculated as 1.9 for level 2. Results showed that increasing the Mechanization Index, will not necessarily increase energy ratio and economic productivity.
Estimation of a Mechanization Index in Apple Orchard in Iran
Raheleh Fadavi,Alireza Keyhani,Seyyed Saied Mohtasebi
Journal of Agricultural Science , 2010, DOI: 10.5539/jas.v2n4p180
Abstract: This study was conducted in production year 2008-9 in West Azerbaijan province (Uromia Township). mechanization index was estimated for apple (Red and Golden delicious varieties). In this study, data were collected by using random sampling method for 80 face to face questioners. Mechanization was considered in three levels including level 1 for spraying only, level 2 for spraying and plotting and level 3 for spraying and fertilizing operations. Results showed that by increasing Mechanization Index, energy and inputs consumption will not decrease necessarily rather management of inputs consumption is more important.
An Analysis of Improving Energy use with Data Envelopment Analysis in Apple Orchard
Raheleh Fadavi.,Naeimeh Samavatean.,Alireza Keyhani,Seyyed Saied Mohtasebi
Asian Journal of Agriculture and Rural Development , 2012,
Abstract: In this paper, Data Envelopment Analysis (DEA) technique was applied for apple (Red and Golden delicious varieties) producers in West Azarbaijan province, Iran (2008-2009). Results showed that the highest share of energy consumption belongs to packaging (57%) and irrigation (16%). Highest share of expenses were found to be 34% and 30% for labor and packaging, respectively. The total energy input for apple production, energy productivity, net energy and output-input energy value were estimated as 101,505 MJ.ha-1, 0.23 kg.MJ-1, -56.320 MJ.ha-1 and 0.44, respectively. Also, The study has helped to segregate efficient farmers from inefficient ones, identify wasteful uses of energy by inefficient producers and suggest reasonable savings in energy uses from effective sources while it describes the process of benchmarking energy inputs and apple yield. Technical, pure technical and scale efficiencies were calculated (by using CCR and BCC models) for all orchards. Inquiries on 80 orchards were conducted in a face-to-face interviewing. The VRS analysis showed that only 41 out of 80 DMUs were efficient. The TE of the inefficient DMUs was calculated as 87.8%. This implies that 12.2% of overall resources could be saved by raising the performance of these DMUs to the highest level. Results showed that the maximum share to the total energy saving is from diesel (39.7%) followed by packaging and about (28.1%). The results of analysis showed that DEA is an effective tool to analyze and benchmark productive efficiency of farms.
Evaluation of changes in the range of μ angle in 6-17 year-old students with normal occlusal relationship
Saied Sadeghian,Maryam Hajiahmadi,Ladan Khorrami,Alireza Eshghi
Journal of Isfahan Dental School , 2012,
Abstract: Introduction: Measuring the antero-posterior jaw relationship has an important role in thediagnosis and treatment planning in orthodontics. Common linear and angular measurements to evaluate sagittal jaw relationship, including ANB angle and Wits index are not very accurate because various factors influence them. The aim of this study was to evaluate μ angle range in 6-17 year-old students with normal occlusal relationships in Isfahan.Materials and Methods: In this descriptive-analytical study, the files in the archives of theOrthodontics Department, Isfahan Faculty of Dentistry, were evaluated and 218 cephalometric radiographs from the files of patients with no orthodontic treatment were selected; the subjects were considered to have normal occlusal relationships based on 13 criteria. The subjects were divided into 5 age groups. After tracing the cephalometric radiographs, ANB angle, Wits index and μ angle (the angle produced by the AB line intersecting the line perpendicular from A to mandibular plane) were measured and the means, standard deviations and changes in the ranges of these angles were determined. Data was analyzed by t-test, ANOVA and Pearson’s and Spearman’s correlation coefficients using SPSS software (α=0.05).Results: The results showed a mean of 17.34 ± 3.74o for β angle with a range of 8-27o. T-test showed significant differences in μ angle between males and females (p value = 0.021). In addition there was no significant relationship between this angle and age (p value > 0.05). There was an inverse and significant relationship between AB angle and Wits index.Conclusion: It was concluded that μ angle is accurate in evaluating antero-posterior jaw relationship and can be used as a valuable index in evaluations. Key words: Cephalometery, Dental occlusion, Orthodontics
Active and Traditional Teaching of Mathematics in Special Education  [PDF]
Saied Bishara
Creative Education (CE) , 2015, DOI: 10.4236/ce.2015.622238
Abstract: This research project examines the differences between two teaching methods in the teaching of mathematics—active teaching and traditional teaching—in special education classes in standard elementary schools in the Arab sector of Israel. The differences examined are related to the advancement of scholastic achievements in mathematics, both from the aspect of understanding the study materials and the ability to solve mathematical problems. In addition, the impact of gender on achievements in mathematics in special education is also examined. This research project involved the participation of 40 students from four special education classes (Grades 3 and 4) at a standard elementary school. Two classes studied mathematics using the active teaching method, while the other two classes studied mathematics using the traditional teaching method. Findings indicated that among students who studied under the active teaching method, the improvement that occurred in the scope of mathematics achievements was distinctly greater than the improvement in scope of mathematics achievements occurring among students studying under the traditional teaching method. It was also found that among girls, the improvement occurring in the scope of mathematics achievements was distinctly greater than the improvement among boys. The characterizing of a teaching method that places an emphasis on active teaching may constitute a factor assisting in the boosting of scholastic achievements in mathematics, and its implications may also have impact on the teaching of other subjects. Active teaching may lead to the prevention of student drop-out from the educational framework, as well as fostering and motivating study and an improvement in social relationships.
Work-Related Musculoskeletal Disorders among Radiologists in Isfahan: A Cross-Sectional Study
Babak Vahdatpour,Saied Khosravi,Alireza Rahimi,Soheil Sattari,Alireza Mogtaderi,Farnaz Dabiri Scoie,Omid Mashrabi
Research Journal of Biological Sciences , 2012, DOI: 10.3923/rjbsci.2010.664.669
Abstract: Work Related Musculoskeletal Disorders (WRSDs) are a common health problem and a major cause of disability. The aim of this study is to determine 12 months prevalence of musculoskeletal symptoms among radiologists and determine the relationship of ultrasonography practice posture and workload factors with those symptoms. About 23 (48.9%) of them were male and 24 (51.1%) were female. The mean age, total work hours per week and ultrasonography practice hours per week were 38.6±13.5, 29.9±12.2 and 23.3±9.6, respectively. Generally, report of anatomical regions pain was higher in man compared with women that it was significant (p = 0.05). There were not statically significant relation between anatomical regions pain and cases groups (p = 0.06). There were no significant relation between anatomical regions pain and ultrasonography practice hours (p = 0.4) and total working hours (p = 0.8). There were significant relation between total pain risk status and sex (p = 0.03), total working hours (p = 0.01) and age groups (p = 0.02). Also, there were significant relation between risk status of shoulder pain and age groups (0.002). There were significant relation between risk status of wrist pain and sex (0.04). WRSDs onset reported as a gradually, suddenly and known accident in 59.3, 31.7 and 10%, respectively. These findings suggest that the 6 months, prevalence of WRSDs among radiologists in Isfahan is not similar to prevalence reported in other study with values lower than their values. Also, there was no significant relation between anatomical regions pain and most of risk factors. We recommend performing further studies with more cases on radiologists.
Open Fracture Tibia Treated by Unreamed Interlocking Nail. Long Experience in El-Bakry General Hospital  [PDF]
Mohamed A. Abdelaal, Saied Kareem
Open Journal of Orthopedics (OJO) , 2014, DOI: 10.4236/ojo.2014.43011
Abstract: Background: Internal splintage of open tibial fractures had gained acceptance as a preferred method of early stabilization of such injuries. Patients and Methods: Fifty-five patients had been operated upon. They were followed from July 2008 to March 2013 (56 months) with an average time of 39 months. The final results had been evaluated through a scheme including 7 parameters: pain, union, malunion, infection, range motions of nearby joints, implant and technical failure and activity and returning to the same work. Results: According to previous parameters, union was achieved in 52 cases (94.5%) at an average time of 20 weeks (16 - 52 weeks) with 5.5% incidence of nonunion. Excellent and good ranges of knee and ankle motions were achieved at final follow-up visit in 49 cases (89.09%). The incidence of complication was acceptable mainly malunion 7.3%, deep infection 12.7%, implant and technical failure 9.1% full activity and returning to the same work achieved in 89.1%. The overall net results of our series are as follows: excellent—19 cases (34.5%), good—27 cases (49.1%), fair—6 cases (10.9%) and poor—3 cases (5.5%). Conclusion: Utilizing unreamed interlocking nail for open tibial fractures is a good method of treatment particularly those of grade (II), and (IIIA).
On the FI-module structure of $H^i(Γ_{n,s})$
Amin Saied
Mathematics , 2015,
Abstract: The groups $\Gamma_{n,s}$, which can be defined in terms of homotopy equivalences of certain graphs $X_{n,s}$, are natural generalisations of $Out(F_n)$ and $Aut(F_n)$. Their cohomology $H^i(\Gamma_{n,s})$ was computed in [5] in rank $n=1,2$, demonstrating that the sequences $\{H^i(\Gamma_{n,s})\}_{s\geq0}$ satisfy representation stability for $n=1,2$. In this paper we show that, for fixed $i$ and $n$, the cohomology $H^i(\Gamma_{n,s})$ forms an FI-module of stability degree $n$ and weight $i$, as defined by Church-Ellenberg-Farb in [2]. We thus conclude that for all $i$ and $n$, the sequences $\{H^i(\Gamma_{n,s})\}_{s\geq0}$ satisfy representation stability with stable range $s \geq i+n$. This range agrees with the low rank calculations made in [5].
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