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Search Results: 1 - 10 of 235 matches for " Marzieh Katibeh "
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Determinants of patient satisfaction with ophthalmic services
Hossain Ziaei, Marzieh Katibeh, Armen Eskandari, Monir Mirzadeh, Zahra Rabbanikhah, Mohammad Javadi
BMC Research Notes , 2011, DOI: 10.1186/1756-0500-4-7
Abstract: Clients of ophthalmic services were selected by systematic random sampling. Overall satisfaction was measured as the primary outcome using a validated patient satisfaction questionnaire (PSQ-18). Different domains were evaluated using PSQ-18 (technical quality, interpersonal manner, communication, financial aspects, time spent for patients, convenience and accessibility); an additional domain, physical setting of the hospital, was evaluated by complementary questions. A general linear model was used to assess the adjusted impact of each quality dimension on the overall satisfaction. Accessibility and technical quality had the strongest association with the overall satisfaction. This regression model could predict an overall satisfaction of 60%.In comparable settings, if care providers wish to improve the quality of health services from a patients' perspective, they should give priority to improving accessibility and technical quality. Further studies are recommended to discover complementary predictors in formation of overall satisfaction.Some parts of this article are translated form Farsi originally published in Bina Journal of Ophthalmology. (2009; 14 (3): 289-297). The original work is at: http://binajournal.org/index.php/bina/article/view/96 webcite.Research on patient satisfaction with medical care can be tracked to the late 1960s [1]. Initially, researchers focused on patient satisfaction as an intermediate condition in order to reach desirable clinical outcomes such as patient compliance with recommended treatment [2]. Gradually, patient satisfaction was shifted to a final outcome for evaluating and improving health and care services [3].Different instruments have been used to measure satisfaction [4-12]. Studies dealing with patient satisfaction are not homogenous and more studies are needed to ascertain the best technique for measuring quality of health care services and the importance of various predictors on overall satisfaction. In addition, little info
Prevalence of diabetic retinopathy in Tehran province: a population-based study
Mohammad Javadi, Marzieh Katibeh, Nasrin Rafati, Mohammad Dehghan, Farid Zayeri, Mehdi Yaseri, Mojtaba Sehat, Hamid Ahmadieh
BMC Ophthalmology , 2009, DOI: 10.1186/1471-2415-9-12
Abstract: Design: population-based cross-sectional study.Participants: patients with diabetes aged 25 to 64 years in Tehran province, Iran. This survey was conducted from April to October 2007. The study sample was derived from the first national survey of risk factors for non-communicable disease. Diabetes mellitus was defined as a fasting plasma glucose of ≥ 7.0 mmol/l (126 mg/dl) or more, use of diabetic medications, or a physician's diagnosis of diabetes. All patients known to have diabetes underwent an eye examination by bio-microscope and indirect ophthalmoscope to check for any signs of DR through dilated pupils by + 78 lens. Participants were also interviewed and examined to determine their demographic characteristics, medical conditions and the regularity of their eye visits.Among 7989 screened patients, 759 (9.5%) had diabetes. Of them, 639 patients (84.2%) underwent eye examination. Five patients (0.7%) with media opacity were excluded. Of 634 examined patients with diabetes, 240 had some degree of diabetic retinopathy, and the overall standardized prevalence of any retinopathy was 37.0% (95% CI: 33.2-40.8), including 27.3% (95% CI: 23.7-30.8) (n = 175) with non-proliferative and 9.6% (95% CI: 7.3-11.9) (n = 65) with proliferative diabetic retinopathy. Clinically significant macular edema and vision-threatening retinopathy were detected in 5.8% (95% CI: 4.0-7.7) (n = 38) and 14.0% (95% CI: 11.3-16.7) (n = 95) of patients, respectively. Only 143 patients (22.6%) with diabetes had a history of regular eye examination.This study demonstrated a high prevalence and poor control of DR in Tehran province. This suggests the need for adequate prevention and treatment in patients with diabetes.Diabetes mellitus (DM) is one of the most common non-communicable diseases with an increasing incidence worldwide. Recent estimates indicate that there were 171 million people throughout the world living with diabetes in the year 2000, and this number is projected to increase to 366 mi
M Katibeh,B Shariati
Acta Medica Iranica , 2008,
Abstract: "nThe economic burden of human immunodeficiency virus/acquired immunodeficiency syndrome (HIV/AIDS) is far greater than its direct medical costs. This study estimated annual indirect costs of the HIV/AIDS epidemic in Islamic Republic of Iran in 2006-2007 from societal perspective. A patient cost diary in sets of six booklets covering a total of 6 months (from October 2006 and fallowed until March 2007) was developed in order to estimate total indirect resource use. Service costs for HIV-infected individuals were indexed to 2006-2007 prices. Annual indirect costs, consisting of the costs of informal services, lost economic productivity, and other non-medical expenses such as transportation expenditures due to HIV/AIDS illness and treatment were included. Lost production was valued using Human Capital Approach. This study included sixty known and detected HIV positive persons and patients younger than retirement age who had record in HIV Consultant Center of Imam Khomeini Hospital. Annual patient-based indirect costs of HIV/AIDS were US $ 616.00 (95% confidence interval [CI]: 401.49-830.43), and indirect costs of HIV/AIDS for each person were nearly sixty percent of direct costs in the same year. Also, annual population-based indirect costs of HIV/AIDS in detected cases were US $ 8,440,000 (95% CI: 5,501,000-11,379,000) and in total estimated cases were US $ 40,653,000 (95% CI: 26,498,000-54,809,000). As indirect costs have significant portion in total costs of disease, both direct and indirect costs, when obtainable, should be used to assess the economic consequences of HIV infection and treatment interventions.
An epidemiologic study of 389 children with epilepsy in southern Iran
Iranian Journal of Child Neurology , 2011,
Abstract: ObjectiveApproximately 4% of the world's population experience one or more febrile seizures during their lifetime, and 0.5-1% of the population has active epilepsy.Less than one-third of the reported seizures are categorized as epilepsy. The cause of established epilepsy is important in determining the treatment and prognosis.Materials & MethodsWe studied 389 cases of documented epilepsy in children aged 2 months to 18 years who visited the hospital for neurologic examination during 2005-2010.Chi-square test or Fisher's exact test was performed for categorical variables.ResultsThe most common age for the first seizure was below 2 years, and the most common type of epilepsy was generalized tonic-clonic seizure. Electroencephalography (EEG) showed an epileptic pattern in 60%, 29.8%, and 51% of the patients with idiopathic, symptomatic, and cryptogenic epilepsy, respectively. This pattern was significantly different among these 3 categories of epilepsy.ConclusionThe most common type of seizure was cryptogenic; however, in most industrialized countries, idiopathic epilepsies were more frequent. With respect to the age and sex of patients, the prevalence of epilepsy in southern Iran is not so much different from that of patients in other parts of the world. As to generalized or partial epilepsy, there are different reports from different part ofthe world; however, generalized tonic-clonic seizures were more common in our area.
Development of a New Method for Tunnel Site Rating from Groundwater Hazard Point of View
H. Katibeh,A. Aalianvari
Journal of Applied Sciences , 2009,
Abstract: In this research, considering the experiments of tunnel inflow due to 10 different tunnels in Iran and adopting idea from site geomechanics rating like RMR, a new method has been developed for rating the tunnel site to evaluate the potential of tunnel inflow according to the preliminary investigation data. This method is called Site Groundwater Rating (SGR). Considered parameters in this method are: joint frequency, joint aperture, karstification, crashed zone, schistosity, head of water above tunnel, soil permeability and annual raining. Using these parameters and following SGR method, tunnel site can be categorized into six rates as follow: no risk, low risk, moderate risk, risky, high risk and critical. The method has been checked out with the observed groundwater inflow of Ghomroud tunnel and also, implied to rate the Amirkabir tunnel site in Iran.
Semimicroscopic Dispersive Analysis of Nuclear-Nuclear Collisions on the Basis of Folding Potential  [PDF]
Abdolmajid Izadpanah, Marzieh Yousefi
Journal of Modern Physics (JMP) , 2014, DOI: 10.4236/jmp.2014.512113

A semimicroscopic analysis of a set of experimental data of elastic α + 12C scattering was performed at several laboratory energies. The Woods-Saxon parameters were adjusted to obtain the best χ2 fit to the scattering data. The energy systematics of the positions of Airy minima was constructed, and it was shown that their positions depend linearly on the inverse center of mass energy. The parameters of the model potential have been determined unambiguously. It has been shown that the energy dependence of the volume integrals satisfies the dispersion relation and agrees well with the results obtained within a phenomenological analysis. Also, it has been shown that the found positions of the Airy minima satisfy the rule of the quadratical dependence of the position of the Airy minima on the reduced mass of the colliding nuclei.

Numerical and Analytical Hydraulic Characterization of a Horizontal Single Joint Based on Radial Flow in Water Pressure Test
M. Karbala,H. Katibeh,M. Sharifzadeh
Journal of Applied Sciences , 2009,
Abstract: In this research, the hydraulic characteristics of a horizontal disc, which is assumed as a rock joint, have been studied analytically and numerically with reference to radial flow occurred along a typical water pressure test that is also known as Lugeon test. The hydraulic characteristics such as Lugeon value, i.e., flowrate to hydrostatic pressure ratio, the joint hydraulic aperture, inertia conditions, turbulence and laminar conditions and the effect of relative roughness were investigated by use of well-known hydraulic relations coincided by numerical analysis. The numerical results were regarded as a verifier to evaluate the accuracy of empirical and analytical relations. The comparison between analytical and numerical results was based on Lu value which is recorded as the main result of Lugeon test. The results show that the simplest equation (the Darcy equation of radial flow) demonstrates the closer estimation to numerical one, in comparison with other analytical and empirical equations. Also, the Lugeon test must be considered as a single-well test and it could just identify a combination of some hydraulic parameters. A practical procedure is finally presented to calculate the possible hydraulic characteristics of tested section in the borehole according to Water Pressure test.
The Relationship Between Tuberculin Response, BCG Vaccine Scar and Asthma
Soheila Alyasin,Pegah Katibeh,Saman Asadi
Iranian Journal Of Allergy, Asthma and Immunology , 2009,
Abstract: Recent studies have proposed that a decline in bacterial infections such as tuberculosis is a factor underlying the rising prevalence and severity of atopic disorder in developed countries. There are conflicting ideas about the inverse relationship between BCG (Bacillus Calmette-Guerin) vaccination and asthma. Stronger response to tuberculin test as an indicator of more potent TH1 response is supposed to influence TH2 modulated allergic reactions. BCG scar considered as an indicator of TH1 - immunoresponse has been proposed to be smaller in asthmatic children in some studies.In a case-control study, 97 asthmatic and 97 control children younger than 5 years of age and BCG vaccinated at birth were tested with 5 units of tuberculin intradermaly. After 48-72 hours, the indurated area was measured in two diameters. Mean while, the scar of BCG in both groups was measured. Severity of asthma in the case group was recorded and categorized into mild, moderate and severe groups. The case group consisted of 63% boys and 37% girls and their tuberculin response was significantly smaller than that of the control (p=0.000), but no data supported the inverse relationship between the tuberculin response and severity of asthma (p=0.113). The scar of BCG was not significantly different in the asthmatic children with variable severity of asthma and control group (p=0.864).Children with definite asthma had a significant weaker response to tuberculin. This might be an indication of less potent TH1-reponse in allergic patients, but it was not associated with severity of asthma. No significant relationship between the size of BCG scar and asthma or its severity was found so perhaps BCG scar is not a sensitive indicator for development of asthma in future.
A classification of spin 1/2 matrix product states with two dimensional auxiliary matrices
Marzieh Asoudeh
Physics , 2010, DOI: 10.1016/j.physa.2009.12.016
Abstract: e classify the matrix product states having only spin-flip and parity symmetries, which can be constructed from two dimensional auxiliary matrices. We show that there are three distinct classes of such states and in each case, we determine the parent Hamiltonian and the points of possible quantum phase transitions. For two of the models, the interactions are three-body and for one the interaction is two-body
A new family of matrix product states with Dzyaloshinski-Moriya interactions
Marzieh Asoudeh
Physics , 2011, DOI: 10.1007/s10773-011-0901-0
Abstract: We define a new family of matrix product states which are exact ground states of spin 1/2 Hamiltonians on one dimensional lattices. This class of Hamiltonians contain both Heisenberg and Dzyaloshinskii-Moriya interactions but at specified and not arbitrary couplings. We also compute in closed forms the one and two-point functions and the explicit form of the ground state. The degeneracy structure of the ground state is also discussed.
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