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Search Results: 1 - 10 of 86 matches for " Ghaem Haleh "
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The impact of disability, fatigue and sleep quality on the quality of life in multiple sclerosis
Ghaem Haleh,Haghighi Afshin
Annals of Indian Academy of Neurology , 2008,
Abstract: Background: Only few papers have investigated the impact of multiple sclerosis (MS), especially MS-related fatigue and the impact of the quality of sleep on the quality of life (QoL) in MS patients. Objective: The objective of this study was to measure the quality of life in MS patients and the impact of disability, fatigue and sleep quality, using statistical modeling. Materials and Methods: A cross-sectional study was conducted and data was collected from 141 MS patients, who were referred to the Mottahari Clinic, Shiraz, Iran, in 2005. Data on health-related quality of life (MSQoL-54), fatigue severity scale (FSS), and Pittsburgh sleep quality Index (PSQI) were obtained in the case of all the patients. Epidemiology data concerning MS type, MS functional system score, expanded disability status scale (EDSS) etc. were also provided by a qualified neurologist. Spearman a coefficient, Mann-Whitney U test, and linear regression model were used to analyze the data. Results : The mean ±SD age of 141 MS patients was 32.6±9.6 year. Thirty five (24.8%) of them were male and the others were female. Eighty two (58.1%) of the patients had EDSS score of ≤ 2, 36 (25.5%) between 2.5 and 4.5, and 23 (16.3%) ≥ 5. As per PSQI scores, two (1.4%) of the patients had good sleep, 16 (11.3%) had moderate sleep and 123 (87.2%) had poor sleep. There was a significant high positive correlation between the quality of mental and physical health composite scores (r = 0.791, P < 0.001). There was a significant negative correlation between the quality of physical score and age (r = -0.88, P < 0.001), fatigue score (r = -0.640, P < 0.001), EDSS score (r = -0.476, P < 0.001) and PSQI (sleep quality r = -0.514, P < 0.000). Linear regression analysis showed that PSQI score, EDSS, and fatigue score were predictors in the model between the quality of physical score and covariates ( P < 0.001). Linear regression model showed that fatigue score and PSQI were predictors in the model between the quality of mental score and covariates ( P < 0.001). Discussion and Conclusion: In conclusion, it may be said that MS patients had poor and moderate quality of mental and physical health. The quality of life was impaired as seen by PSQI, EDSS, and FSS. It is our suggestion that these patients require the attention of health care professionals, to be observed for the need of possible psychological support.
A case-control study of risk factors for epithelial ovarian cancer
Ghaem Maghami Noori F
Tehran University Medical Journal , 2001,
Abstract: Ovarian cancer is second prevalent cancer among gynecologic malignancies and the most common type of ovarian cancer is epithelial form (85-90 percent). To detect the risk factors for the epithelial ovarian cancer, a case-control study was conducted in Valieasr hospital in 1988. In this study, 118 cases with epithelial ovarian cancer (according histological records) and 240 controls without any gynecological cancer in gynecologic clinic had been interviewed. For data analysis, T-test, Chi2 test and logistic regression have been used at a =0.05 as level of significance. The mean age in cases was 50±13 and in controls was 49.9±12 years, without significant different. The mean number of pregnancies and parity in cases was less than controls, significantly (P<0.03). The mean months of breast feeding in cases was less than controls (54.9±71.2 versus 82.4±62.7) (P<0.001). The cases had a lower mean age of menarch than controls (P=0.03). 58 percent of cases and 21.3 percent of controls hadn't used any contraception methods (P=0.00001). The mean years of contraception was significantly less in cases versus controls (P<0.001). The odds ratio for epithelial ovarian cancer was 0.24 (95 percent CI: 0.13-0.48) in OCP users, 0.47 (95 percent CI: 0.005-0.43) in TL method, and was 0.41 (95 percent CI: 0.22-0.76) in other contraception methods, relative to women who hadn't used any contraception methods. This study reveals that epithelial ovarian cancer risk increases significantly with earlier menarch, decreasing number of pregnancy, deliveries duration of breast feeding and use of contraception methods. Use of contraception pill and tubal ligation method decreases risk of epithelial ovarian cancer.
Design of Secure Microsystems Using Current-to-Data Dependency Analysis  [PDF]
Haleh Vahedi, Radu Muresan, Stefano Gregori
Circuits and Systems (CS) , 2013, DOI: 10.4236/cs.2013.42019
Abstract:

This paper presents a method for designing a class of countermeasures for DPA attacks based on attenuation of current variations. In this class of countermeasures, designers aim at decreasing the dynamic current variations to reduce the information that can be extracted from the current consumption of secure microsystems. The proposed method is based on a novel formula that calculates the number of current traces required for a successful DPA attack using the characteristics of the microsystem current signal and the external noise of the measurement setup. The different stages of the proposed method are illustrated through designing an example current flattening circuit. Meanwhile validity and applicability of the proposed formula is verified by comparing theoretical results with those obtained experimentally for the example circuit. The proposed formula not only estimates the required level of attenuation for a target level of robustness defined by design requirements, it also predicts the effectiveness of a countermeasure using simulation results therefore dramatically reducing the time to design of secure microsystems.

Study the Influence of Thermal Oxidation on the Structures of Titanium Very Thin Layers
Saeid Rafizadeh,Haleh Kangarlou
Lecture Notes in Engineering and Computer Science , 2011,
Abstract:
Synthesis, Antifungal and Antibacterial Activity of Substituted 4,5-Dicarbomethoxy-l,3-dithioles
HALEH HAMEDIFAR ABBAS SHAFIEE
DARU : Journal of Pharmaceutical Sciences , 1999,
Abstract: The title compounds are prepared from the reaction of 4,5-dicarbomethoxy-l,3-dithiolyltri-butylphosphonium tetraflou rob orate and aromatic aldehydes in the presence of triethylamine."nAntifungal and antibacterial effects of the final compounds are reported.
Investigation of Changes in the Topography of TixOy Thin Layers under Heat Process
Haleh Kangarlou,Saeid Rafizadeh
Journal of Applied Sciences , 2011,
Abstract: Ti films of the same thickness and near normal deposition angle and the same deposition rate were deposited on glass substrates, at room temperature, under UHV conditions. Due to getting properties of Titanium atoms, they specially react with oxygen during evaporation and TixOy layers produced. Different annealing temperatures as 130 and 330 Celsius degree with uniform 9 cm3 sec-1 oxygen flow, were used for producing titanium di oxide layers. Their nano structures were determined by AFM and XRD methods. Roughness of the films changed due to annealing process. The getting property of Ti and annealing temperature, can play an important role on the nano-structure of the films.
Protection Effect of Gold Nanoparticles Coated on Fruit and Vegetables Using PVD Method
Haleh Kangarlou,Sakine Shirvaliloo
Journal of Applied Sciences , 2012,
Abstract: Gold particles can be real jewels, specially at the nano size they are in great demand by scientists. A field that has showed fast growth over the past decades is the use of gold nanoparticles in biology, or life sciences. The aim of this work was to use, physical method to deposit gold nanoparticles as a protection layer on the fruits and vegetables. There is no any report about direct and physical vapor deposition on fruits and vegetables yet. Gold nanolayers of 40 nano meter thickness were coated on one side of apple, cucumber, lettuce and tomato, by Physical Vapor Deposition (PVD) method, in high vacuum condition at room temperature. Deposition angle of gold nanoparticles were vertical to all species. After coating we kept them in normal room temperature. Protection of gold nanolayers and time of these protections were investigated. Time length protection of gold nanoparticles has an increasing trend for apple, tomato, lettuce and cucumber.
Boolean networks with veto functions
Haleh Ebadi,Konstantin Klemm
Quantitative Biology , 2014, DOI: 10.1103/PhysRevE.90.022815
Abstract: Boolean networks are discrete dynamical systems for modeling regulation and signaling in living cells. We investigate a particular class of Boolean functions with inhibiting inputs exerting a veto (forced zero) on the output. We give analytical expressions for the sensitivity of these functions and provide evidence for their role in natural systems. In an intracellular signal transduction network [Helikar et al., PNAS (2008)], the functions with veto are over-represented by a factor exceeding the over-representation of threshold functions and canalyzing functions in the same system. In Boolean networks for control of the yeast cell cycle [Fangting Li et al., PNAS (2004), Davidich et al., PLoS One (2009)], none or minimal changes to the wiring diagrams are necessary to formulate their dynamics in terms of the veto functions introduced here.
The Evaluation of the Effect of TENS Therapy on Reducing Acute and Chronic Pain Following Varicocelectomy  [PDF]
Dawood Agamohammadi, Haleh Farzin, Solmaz Fakhari, Roshide Siami
Open Journal of Internal Medicine (OJIM) , 2017, DOI: 10.4236/ojim.2017.73005
Abstract: Introduction: Post-varicocelectomy pain is a considerable pain with probability of promotion toward chronicity. Some reasons, including surgical technique or nerve injury and inappropriate attention to treatment of acute pain play role in the emergence of acute pain. The pain could lead to limitation in movement and working, patient dissatisfaction and waste of medical resources. Transcutaneous electrical nerve stimulation (TENS) therapy as the patient control analgesia (PCA) is associated with reduction of pain intensity and analgesic consumptions. This study aimed to evaluate the effect of TENS therapy on reducing the acute and chronic pain following varicocelectomy. Methods and Materials: The study was conducted after obtaining the approval of the local Institute Ethics Committee and written informed consent from all of the patients. Eighty patients scheduled for undergoing varicocelectomy, were randomly classified according to a randomization list prepared using online software at a 1:1 ratio to Groups A (intervention group) and B (placebo group). In postoperative and recovery period, Group A received TENS therapy for 30 minutes in parallel to surgical scar with high frequency by sensory level. Group B was treated with off-device. The treatment course was replicated for the two groups at 2, 6, 12 and 24 hours after operation. Then, postoperative pain was measured by VAS (visual analogue scale) at the same time and after 1 week and 1, 2 and 3 months. The amount of used analgesics was recorded. Results: The results showed that based on the VAS, pain significantly decreased after intervention in 2 hours (25% with VAS = 5 versus 32.5% with VAS = 8 in control group). The differences among, amount of used analgesics at 2, 6 and 12 hours were significant with p-value = 0.001, <0.0001 and =0.02, respectively. Conclusion: TENS therapy could efficiently decrease pain degree for hours, weeks and months after varicocelectomy; this was associated with decreased post-operation analgesic requirements.
Seroprevalence of Cytomegalovirus in Patients with and without Coronary Artery Diseases at Madani Heart Center, Iran
Nasser Safaie,Reza Ghotaslou,Hosain Montazer Ghaem
Acta Medica Iranica , 2010,
Abstract: "nInflammation plays a major role in coronary artery disease (CAD). Currently, it is unclear, whether Cytomegalovirus (CMV) infection is associated with the risk of the atherosclerosis. The aim of this study was to determine the prevalence of anti- CMV antibodies in CAD and non CAD patients undergoing artery bypass surgery. Sera from 157 patients who underwent coronary angiography were tested for CMV by enzyme linked immunosorbent assay (ELISA) at Madani Heart Hospital, Tabriz University of Medical Sciences, Iran. Our study population was 58.6% male and 41.4% female, with an age range of 38 to 86 years. The prevalence of CMV positivity tended to be higher in coronary artery diseases patients than in those without non coronary artery diseases (83.2% versus 63.6%) (P= 0.01). This analysis demonstrated that CMV seropositivity may be a risk factor for CAD in the present study population.
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