OALib Journal期刊

ISSN: 2333-9721




2016 ( 6 )

2015 ( 13 )

2014 ( 18 )

2013 ( 42 )


匹配条件: “Afson Hassani Mehraban” ,找到相关结果约360条。
Environmental risk assessment using the Persian version of the Home Falls And Screening Tool (HOME FAST) in Iranian elderly
Bahareh Maghfouri,Afson Hassani Mehraban,Ghorban Taghizade,Gholam Reza Aminian
Pajouhan Scientific Journal , 2013,
Abstract: Introduction: One of the common problems among older people is falling. Falling inside the houses and streets makes up a large incidence between Iranian elderly, then the effort to identify environmental factors at home and home modification can reduce falls and injury in the elderly. The aim of this study is identifying elderly at risk of fall with using screening tool (HOME FAST) and define reliability of this tool.Material and Methods: As a reliability, through the health housing of the town councils in five geographical regions of Tehran, 60 old person were selected. Participants aged 60 to 65 years and the HOME FAST tool was used in the two stages (inter rater and test-retest).Results: Test-retest reliability in the study showed that agreement between the items is over than 0.8, which shows very good reliability. The results showed that the relative of the each item in the Agreement between the domain is 1 - 0.65, which shows moderate to high reliability. And the results in this study showed that agreement between the items in Inter rater reliability is over than 0.8, which shows the level of reliability is very good. Also it showed that the relative of the each item in the agreement between the domain is 1 - 0.01, which shows poor to high reliability.Conclusion: This study shows that the reliability of the HOME FAST is high. The findings of these comments have been expected that the test objectives were appropriate to prevent falls and the tools showed acceptable reliability, then this test can be used as a tool for to professionals.
Can the International Classification of Functioning, Disability and Health (ICF) be used to understand risk factors for falls in older Australian women?  [PDF]
Afsoon Hassani Mehraban, Lynette Mackenzie, Julie Byles, Richard Gibson, Cassie Curryer
Health (Health) , 2013, DOI: 10.4236/health.2013.512A006

Purpose: To evaluate the relevance and accuracy of determining and predicting risk factors for falls in older women using the International Classification of Functioning, Disability and Health (ICF). Methods: We tested the accuracy of the ICF against risk of falls amongst 568 community dwelling participants of the Australian Longitudinal Survey on Women’s Health (ALSWH). We linked health-related variables to the ICF using ten linking rules. The logistic regression analysis evaluated the relationship between the variables and the outcome of falls. Self-report surveys measured daily functioning, health service use, medications, housing and social support. Results: Variables aligned with the ICF components of body function, health conditions, environment, activity and participation (ADL/IADL), and general health were significantly associated with falls. Discussion and conclusion: Mapping ALSWH health-related data to ICF components identified significant risk factors for falls are related to health conditions, functional limitations and home hazards. Biopsycho-social approaches guided by the ICF framework are crucial for fall prevention.


Validity and Reliability of Persion Version of home Falls and Accident Screening Tool in Iraniaian Elderly
B Maghfouri,A Hassani Mehraban,G Taghizade,G Aminian
Modern Rehabilitation , 2012,
Abstract: Background and aim: One of the common problems in elderly people is falling. The effort to identify environmental risk factors at home and their modifications may control falls and injury in the elderly. Home FAST as a valid and reliable screening tool is used to identify elderly at risk of falling at home and in society.Materials and methods : International quality of life assessment (IQOLA) was used for validity and reliability of Home fast. After forward and backward translation , the questionnaire was evaluated for content validity by 5 occupational therapists. Sixty participants aged over 65 were randomly selected through five geographical regions of Tehran. Inter-rater and test-retest with one week interval were conducted by two occupational therapists. Results: Agreement among experts about the validity of screening tool of Home FAST (χ2= 25.008) were more than 96%.The correlations of test-retest with relative and absolute coefficients were high (ICC = 0.72 and SEM = 0.89). Also, the correlation coefficients between the raters with absolute and relative (ICC = 0.88 and SEM = 0.54) were significant, indicating the high reliability of this test.Conclusion: This study shows the reliability and validity of the test are high. Since, test items are conformable to fall prevention goals, these results can be expected. The tool can be used by professionals.
The Effect of Verbal Instructions on Allocation of Attention on Postural Control in Young Adults
Fateme Bazrafkan,Afsoun Hassani Mehraban,Ghorban Taghi zadeh,Mahdi Ali zadeh
Modern Rehabilitation , 2011,
Abstract: Background and aim: The importance of cognitive resources was shown in dual task studies of postural control. However, there was no definite evidence on how verbal instructions influence the allocation of attention to postural control. Therefore, the objective of this study is to explore the effect of verbal instructions on postural performance.Materials and Methods: this Cross-sectional study was performed in 20 young adults (23.95 ± 3.31). Parallel standing/ hard surface, parallel standing/ foam surface, tandem standing/ hard surface were used as postural tasks and the choice reaction time task were conducted as cognitive task. Dual- task performance was measured under three different instructions including to pay attention to cognitive task, to postural task, and equal attention to both tasks. Results: Comparing the performance of postural tasks under three different instructions were conducted by One-way ANOVA and showed in parallel standing on hard surface (p=0.831), parallel standing on foam (p=0.433), tandem standing on hard surface (p=0.912) for path length of COP and instructions in parallel standing on hard surface (p=0.308), parallel standing on foam (p=0.414), tandem standing on hard surface (p=0.867) for mean velocity were not significant. Postural performance in single and dual task conditions was significant only in parallel standing/ foam surface (p=0.046).Conclusion: various instructions could not influence the amount of attention allocated to automatic postural tasks.
Does vesico-ureteral reflux in original kidney of transplant recipient increase the risk of infection or rejection?
Mehraban D
Tehran University Medical Journal , 1997,
Abstract: A prospective study during 1990-1995 was conducted to assess the risk of rejection and infection in kidney-transplant recipients, who's original kidney had vesico-ureteral reflux (VER). Two groups of recipients with and without VER were followed for one month after transplant; 24 and 250 cases respectively. The calculated relative risks for the effect of VER showed a moderate increased risk for rejection in VER group; (RR=1.82, CI=1.12-2.95, P<0.05). No effect was found for VER being one-or two-sided. Hence, VER has a moderate effect on rejection, but no effect on infection.
D. Mehraban
Acta Medica Iranica , 1996,
Abstract: Femoral mononeuropathy is a complication of gynecological and urological operations. Tlte objective of this citse report is to bring to the attention of fellow urologists the very existence of this complication and offer measures to prevent it. A 48 year old obese worman with a 2 year history of frequent left renal colics, anil a nonfunction left kidney on IVP underwent a retrograde ureterogram study anil a transvaginal ureterolithotomy, in an exaggerated lithotomy position. Postoperatively, a left leg paralysis required 3 weeks of care and encouragement to heal. To prevent this complication, avoid putting too long and too much pressure by retractors on the psoas muscles. During the abdomino-perineal procedures, frequent change of retractor site and monitoring of distal arterial pulses would he helpful. Also, do not use the exaggerated lithotomy position for an extended period of time.
Maxillary Distraction Osteogenesis  [PDF]
Mohammad-Esmaiil Hassani, Hamid Karimi, Hosein Hassani, Ali Hassani
Surgical Science (SS) , 2015, DOI: 10.4236/ss.2015.62003

Background: Distraction Osteogenesis is popular for long bones. And nowadays it has found its role in facial bone deficiency treatments. Purpose: We used our special designed Distractor for advancement of Maxillary deficiencies in cleft lip and palate patients. The purpose of this paper is to compare the treatment of hypoplastic, posteriorly retruded maxillary of cleft palate patients using distraction osteogenesis vs. Le fort I orthognathic surgery for length of advancement, stability and relapse, growth after distraction and soft tissue expansion and soft tissue profile changes. Meterial & Methods: In group A only Le fort I and surgical maxillary advancement sometimes with bone graft were done. In group B we used our special Distractor for Distraction Osteogenesis and advancement of the Maxillary bone. Demographic data, length of retrusion of maxilla, time length of treatment, length of advancement and relapse, SNA and SNB angles were measured and included in the study. The results were compared in each group before and after advancement and between both groups. The rate of distraction was 0.5 mm twice per day to achieve normal occlusion with 2 mm overcorrection more than calculated measures. The devices removed after 10 weeks as latency period. Results: The SNA increased at the end of distraction (p < 0.001), with no significant relapse indicating stability at 1 year after treatment. The total length of advancement in group A was 17 ± 4 mm and in group B was 20 ± 3 mm. The difference between before and after measurements in each group was significant (p = 0.002, p = 0.003 respectively). The mean length of relapse in group A was 3 ± 1 mm and in group B was 1 mm. Discussion: For the deformities and retrusions less than 7 - 8 mm, the Orthognatic surgery is the treatment of choice, however for more retrusions (>10 mm) we recommend Distraction Osteogenesis, and it preferred to start it soon in younger ages.

and Decays in QCD Factorization Approach
Mahboobeh Sayahi,Hossein Mehraban
Advances in High Energy Physics , 2012, DOI: 10.1155/2012/494031
Abstract: The hadronic and has been analyzed in “QCD factorization” approach and generalized factorization. The effective coefficients have been calculated for three helicity states which give three different contribution of amplitudes. We consider that J/ψ behaves as a light meson in compared to meson. For and , experimental data of branching ratios are (1.8 ± 0.5) × 10?3 and <5 × 10?4, respectively. Our best obtained results are (1.79 ± 0.01) × 10?3 at θ = 58° and (1.42 ± 0.01) × 10?3 at θ = 32° for decay. And we have 4.27 × 10?4 at θ = 58° and 3.45 × 10?4 at θ = 32° for , which are in agreement with experiment. 1. Introduction Recent experimental results sobtained by BABAR, Belle, and CLEO have opened an interesting area of research about production of axial-vector mesons in decays. Two body decays look for CP violation and overconstrain the CKM parameters in the Standard Model. Exclusive modes containing , , and , which have been extensively discussed in the literature have confirmed such expectation [1]. In this research, the two-body hadronic decays of meson into ( : vector, : axial-vector meson) are studied in QCD factorization method. First we introduce the structure of axial-vector meson. Then we study the hadronic decays and , particularly. There are two distinct types of axial-vector meson, namely, and . In the quark model, two nonets of axial-vector meson are expected as the orbital excitation of the system. In terms of the spectroscopic notation , there are two types of -wave mesons ( and ). These two nonets have distinctive quantum numbers, and , respectively. Experimentally, the nonet consists of , , , and , while the nonet has , , , and . There are two mixing effects for axial-vector meson: one is the mixing between and states, for example, and , and the other is mixing among or states themselves [2]. The meson behaves similarly to the vector meson this is not the case for the meson. For the latter, its decay constant vanishes in limit. Their light-cone distribution amplitudes are given by using the QCD sum rule method, and the chiral-even two-parton light-cone distribution amplitudes of the ( ) meson are symmetric (antisymmetric) under the exchange of quark and antiquark momentum fractions in the limit due to -parity. The decays involving an axial-vector meson and vector meson in final state have three polarization states. We have studied the two body decays involving axial-vector meson or , and a vector meson in final state. The simplest approach to obtain the hadronic matrix elements in decay amplitudes is naive factorization, where the matrix
Final State Interaction Effects on the Decay
Behnam Mohammadi,Hossein Mehraban
Advances in High Energy Physics , 2012, DOI: 10.1155/2012/203692
Abstract: The exclusive decay of is studied in the framework of the QCD factorization (QCDF) method and final state interaction (FSI). A direct decay is only occurred via a tree and a penguin based on the quark diagram analysis. The result that is found by using the QCDF method is less than the experimental result, so, the role of FSI is considered. The intermediate states , , , and via the exchange of and are contributed to the decay. The above intermediate states is calculated by using the QCDF method. In the FSI effects the results of our calculations depend on “η” as the phenomenological parameter. The range of this parameter are selected from 1 to 2. For the exchanged particles and , it is found that if is selected the numbers of the branching ratio are placed in the experimental range. The experimental branching ratio of decay is , and our prediction number is in the absence of FSI effects, and it becomes when FSI contributions are taken into account. 1. Introduction The importance of FSI in weak nonleptonic meson decays is investigated by using a relativistic chiral unitary approach based on coupled channels [1–3]. The chiral Lagrangian approach is proved to be reliable for evaluating hadronic processes, but there are too many free parameters which are determined by fitting data, so that its applications are much constrained. Therefore, we have tried to look for some simplified models which can give rise to reasonable estimation of FSI [4, 5]. The FSI can be considered as a rescattering process of some intermediate two-body states with one particle exchange in the t-channel and computed via the absorptive part of the hadronic loop level (HLL) diagrams. The calculation with the single-meson-exchange scenario is obviously much simpler and straightforward. Moreover, some theoretical uncertainties are included in an off-shell form factor which modifies the effective vertices. Since the particle exchanged in the t-channel is off shell and since final state particles are hard, form factors or cutoffs must be introduced to the strong vertices to render the calculation meaningful in perturbation theory. If the intermediate two body mesons are hard enough, so that the perturbative calculation can make sense and work perfectly well, but the FSI can be modelled as the soft rescattering of the intermediate mesons. When one or two intermediate meson can reach a low-energy region where they are not sufficiently hard, one can be convinced that at this region the perturbative QCD approach fails or cannot result in reasonable values. If the intermediate mesons are soft,
Educational Advisor System Implemented by Web-Based Fuzzy Expert Systems  [PDF]
Mahdi Hassani Goodarzi, Vahid Rafe
Journal of Software Engineering and Applications (JSEA) , 2012, DOI: 10.4236/jsea.2012.57058
Abstract: Using of the Internet technology and the field of Fuzzy expert systems has proposed new branches of sharing and distributing knowledge. However, there has been a general lack of investigation in the area of web-based Fuzzy expert systems (FES). In this paper the issues associated with the design, development, and use of web-based FES from a standpoint of the benefits and challenges of developing and using them. The original theory and concepts in conventional FES were reviewed and a knowledge engineering framework for developing them was revisited. Student in an educational place need an educational advisor for solve problems. Some of educational circulars order changing because advisor must update information away. The student's request is linguistic and crisp Expert System cannot solve problems completely. In my approach we build Web-Based Fuzzy Expert System for Student Education Advisor (FES-SEA) and stays in university portal. This system implemented with ASP.NET, SQL-SERVER 2008.

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