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Search Results: 1 - 10 of 86 matches for " Farahnaz Khajehnasiri "
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Risk Factors of First Acute Myocardial Infarction: Comparison of Elderly and Non-Elderly: A 24-Year Study  [PDF]
Soheila Dabiran, Behrooz Khaleghi Manesh, Farahnaz Khajehnasiri
Advances in Aging Research (AAR) , 2015, DOI: 10.4236/aar.2015.41002
Abstract: Although risk factors of Ischemic Heart Disease (IHD) are well known, knowledge about the distribution of these risk factors in different subgroups of patients can be used for designing preventive programs. The aim of this study was to assess differences of prevalence of IHD risk factors in elderly and non-elderly patients in their first Acute Myocardial Infarction (AMI). In this retros-pective study, elderly (age > 65; n = 1060) and non-elderly (age ≤ 65; n = 2228) patients with first AMI who were admitted into four teaching hospitals in Tehran between 1982 and 2005 were recruited. Risk factors containing male gender, systolic and diastolic hypertension (HTN), diabetes, hypertriglyceridemia, hypercholesterolemia, smoking and family history of IHD were compared between the two groups. Among different risk factors, diabetes and systolic HTN were more common in elderly than their non-elderly counterparts, and male gender, smoking, family history of IHD and dyslipidemia were more common in non-elderly patients than elderly ones (p < 0.05 for all comparison). Diastolic HTN showed no significant difference between the two groups. Findings of this study, stating difference of prevalence of risk factors in two elderly and non-elderly groups, can be used by health policy makers to conduct preventive programs for AMI in this country.
Prevention of Malpractice in the Field of Health, as the Other Type of Prevention  [PDF]
Seyed Mansour Razavi, Farahnaz Khajehnasiri, Soheila Dabiran
Open Journal of Preventive Medicine (OJPM) , 2017, DOI: 10.4236/ojpm.2017.79014
Abstract:
Background: So far, five types of prevention including: primordial, primary, secondary, tertiary and quaternary prevention levels have been defined in literatures. Aim: In this study, we have proposed “prevention of malpractice” as the other level of prevention. Methods: Qualitative comparison of the data, obtained from the review of conducted studies by using of scientific literatures, registered in PubMed, Google Scholar and Scopus sites. Results: Bringing dozens of examples of “malpractice” in the five areas of prevention. Conclusion: We concluded that, “malpractice” may be occurred at all levels of prevention and preventing it can be considered as the other level of prevention.
Self-Reported Assessment of Health Status and Psychological Condition among Hospital Medical Residents in Iran  [PDF]
Soheila Dabiran, Behrooz Nabaei, Maede Ghorbany, Farahnaz Khajehnasiri
Health (Health) , 2015, DOI: 10.4236/health.2015.77097
Abstract: Psychological stress and illness among hospital residences have been subject to increasing scientific scrutiny; however very few studies have been published to describe the extent of health status and psychological stresses in residents in different specialties especially in our country that our study was mainly focused on this subject. Methods: The study subjects were medical residents in public hospitals covering 14 different specialties in Tehran in 2007. A self-administered questionnaire elicited information related to socio-demographic profile, specialty, duty hours, sleep quality, physical activity level, number of night shifts per month, mood changes, sense of depression after night shifts, fatigue, use of antidepressant and tranquilizer, and their opinion regarding their health status on a 4-point Likert scale. Results: 66.7% of participants were male with the mean age of 32.9 ± 4.2 years. 62.1% of the residents felt mood changes after nightly shifts that could adversely affect their daily living, quality of work, and social relationships. The overall prevalence of the use of antidepressant drugs was 20.0% which was significantly higher in women than men. Also, 24.4% of them reported consumption of sedative and hypnotic drugs. 15.6% reported complete healthy status while 9.4% reported partial illness. Complete healthy status was more reported among the residents of anesthesiology and pediatrics while illness was more reported by residents in pathology field. Residents’ satisfaction with their status was positively correlated with the year of residency and marriage, while dissatisfaction was more reported in divorced ones as well as in those with higher number of nightly shifts. Conclusion: Notable number of hospital residents in Iran experience significant stressors and emotional and mental health problems. Among all studies factors type of specialty, year of residency, female gender, number of nightly shifts, and single marital status were more important than other factors.
What women think about their husbands′ opinions might influence women′s body image: An explorative study
Sotoudeh Gity,Khosravi Shahla,Karbakhsh Mojgan,Khajehnasiri Farahnaz
Indian Journal of Medical Sciences , 2008,
Abstract: Background : Self-perception of weight status is an important factor in food consumption and weight-loss-related behaviors. Aims : To determine women′s self-perception of weight status, married women′s perception of their husbands′ opinions regarding women′s weight status, the relationship between socio-demographic factors and under-assessment of weight status in overweight/obese women. Settings and Design : In a cross-sectional study in the year 2003 in Islamshahr, 704 adult women aged 19 to 65 years were included. Materials and Methods : Women′s self-perception of weight and married women′s perception of husbands′ opinions regarding women′s weight status were compared with actual weight group categorized according to body mass index (BMI). Statistical Analysis Used : Results were expressed as frequency and percentage. Logistic regression was used to assess the independent effects of various socio-demographic factors on under-assessment of weight status in overweight and obese women. Data were analyzed using SPSS 11.5 for Windows (SPSS, Chicago, IL). Results : Overall, 48% (338) women misclassified their weight status relative to their actual weight. Married women′s perception of husbands′ opinion regarding women′s weight status showed about 57% (266) misclassification. Multivariate regression analysis revealed place of residence and women′s perception of husbands′ opinion regarding women′s weight status to be independently associated with under-assessment of weight status by overweight and obese women. Conclusions : Overweight and obese women′s perception of their husbands′ opinion regarding women′s weight status has a significant effect on assessment of weight status by women. Women of Islamshahr should be taught to more accurately assess weight status and to initiate action to prevent or correct excessive weight.
Total Antioxidant Capacity and Malondialdehyde in Depressive Rotational Shift Workers
Farahnaz Khajehnasiri,Seyed Bagher Mortazavi,Abdolamir Allameh,Shahin Akhondzadeh,Hassan Hashemi
Journal of Environmental and Public Health , 2013, DOI: 10.1155/2013/150693
Abstract: Shift work is associated with sleep deprivation, occupational stress, and increased risk of depression. Depressed patients show increased oxidative stress. During excessive oxidative stress, Malondialdehyde (MDA) increases and total antioxidant capacity (TAC) decreases in body. This cross-sectional study was conducted to determine the serum level of TAC and MDA among depressed rotational shift workers in Shahid Tondooyan Tehran Oil Refinery. 21-item Beck Depression Inventory was used to measure depression level. The level of TAC and MDA was measured by 8 mL fasting blood sample. MDA was determined by thiobarbituric acid reaction. Serum total antioxidants were measured using the ABTS. Results of this study showed that TAC mean and standard deviation concentration was 2.451 (±0.536)?mg/dL and MDA was 3.725 (±1.098)?mic·mol/L, and mean and standard deviation of depression score and BMI were 14.07 (±3.84) and 24.92 (±3.65)?kg/m2, respectively. Depression score had a positive correlation with rotational shift work experience and work experience ( and ), respectively, ( ). 1. Introduction Shift work is defined as work scheduled outside the normal daytime working hours (7 AM to 6 PM) [1]. The trend in our society is toward an increasing pattern of shift work and it is essential for many industries such as refineries to have 24-hour work pattern [2]. More than 20 to 30 percent of workers are shift workers [3]. They are forced to work and sleep against normal chronobiological rhythms, and as a result the pattern of sleep-wake becomes misaligned [4]. Shift work can alter human Circadian system which is normally synchronized with the solar day [5]. Shift workers can never be adapted to their sleep/activity cycle, which is necessary for their work shift. They sleep at times their organism is set to activity and they work when physical effectiveness is low [6]. Disruption of normal circadian system can cause physiological and psychological problems. Shift work also negatively impacts workers’ health condition [7] and cause diseases resulting in absenteeism from work. Sleep disorders are among the health problems caused by shift work [8]. The prevalence of difficulty initiating sleep is higher in rotational shift workers compared with regular day workers [9]. Based on different studies, shift workers complaining about sleep disorders and insufficient sleep range from 10% to 90% [10–12]. Furthermore, sleep disorders and occupational stress lead to more sleepiness and reduce neurobehavioral function consequently, and, therefore, increase the risk of depression [13].
Solving nonlinear two-dimensional Volterra integro-differential equations by block-pulse functions
Nasser Aghazadeh and Amir Ahmad Khajehnasiri
Mathematical Sciences , 2013, DOI: 10.1186/2251-7456-7-3
Abstract: First, the two-dimensional block-pulse operational matrix of integration and differentiation has been presented. Then, by using this matrices, the nonlinear two-dimensional Volterra integro-differential equation has been reduced to an algebraic system. Some numerical examples are presented to illustrate the effectiveness and accuracy of the method.
Scientific Productivity of Zahedan University of Medical Sciences
Farahnaz Vatankhah
Zahedan Journal of Research in Medical Sciences , 2012,
Abstract: Background: Nowadays the scientific research outputs indexed in international databases are used in the bibliometric rankings of researchers, departments and universities. Measuring the impact and value of scientific publications is used by policy makers to distribute the research funds in way that support high quality research projects. Materials and Methods: In this scientometric study, SCOPUS citation database was used to evaluate the scientific research productivity of Zahedan University of Medical Sciences (ZAUMS) over the period of 1976-2011. We retrieved the number of publications and citations of researchers, academic groups, and university and calculated their h-index scores. The affiliation varieties were used by researchers to address the university and different spellings of authors names were determind.Results: The results showed that scientific productivity of ZAUMS has been improved so that it’s h-index increased from 1 in 2000 to 19 over the period of the study.Conclusion: Total number of 504 publications were indexed in SCOPUS in the forms of original article, review article, conference paper, letter, editorial, and note. Most of the publications were in the form of research article (91.2%). There was a significant coorelation between the number of publications, citation rates and h-index scores. Departments of biochemistry and infectious disease ranked first on the basis of producing the most scientific output of the university.
Design of Rectangular Dielectric Resonator Antenna Fed by Dielectric Image Line with a Finite Ground Plane  [PDF]
Fatemeh Kazemi, Mohammad Hassan Neshati, Farahnaz Mohanna
Int'l J. of Communications, Network and System Sciences (IJCNS) , 2010, DOI: 10.4236/ijcns.2010.37083
Abstract: A Rectangular Dielectric Resonator Antenna (RDRA) fed by Dielectric Image Line (DIL) through a narrow slot placed on a finite ground plane is numerically investigated. The effects of ground plane size on the radiation performance of the antenna are carried out. To increase the antenna gain, four sidewalls are placed around the corners of the ground. Also, a reflector is placed at the back side of the structures to reduce backward radiation. Results show that 7.7 dB gain is obtained at 10 GHz with a broadside radiation pattern. For the DRA with four sidewalls maximum gain of 10.4 dB at 10.4 GHz is achieved which is 2.7 dB higher than the gain of the structure without them. The effect of air gap between dielectric resonator and ground plane is also investigated. The results show that with increasing the distance between the DR and ground, antenna gain is decreased.
Atherosclerotic Changes and Hemodynamic Parameters of Carotid Artery in Hemodialysis Patients
Rohani Z,Sanadgol H,Khajehnasiri S
Tehran University Medical Journal , 2012,
Abstract: Background: Atherosclerotic vascular disease is a major cause of morbidity and mortality in patients with end-stage renal diseases on maintenance hemodialysis. Early atherosclerotic changes of the arterial wall can be evaluated by measuring intima-media thickness (IMT), and looking for the presence and structure of plaques and parameters of vascular resistance. In this study we investigated the relationship between carotid IMT and pulsatility index (PI) or resistive index (RI) values in hemodialysis patients. Methods: Sixty hemodialysis patients (27 females and 33 males; median age 41.7 years) and 60 healthy volunteers (32 females and 28 males, median age 37.8 years) underwent ultrasonography of common carotid artery for the determination of IMT, PI and RI. Results: Bilateral IMT was significantly higher in hemodialysis patients than in control group (P<0.001). Left carotid artery RI and PI were found to be significantly higher in hemodialysis patients than in the controls (P<0.001). Right carotid artery RI and PI had no significant statistical differences between the two groups (P=0.18 and P=0.78, respectively). There was a moderately significant negative correlation between the left carotid IMT and left RI and PI in the controls (r= -0.42, P=0.001 and r=- 0.43, P<0.001, respectively). Conclusion: PI and RI values of the left coronary artery increased as did IMT in hemodialysis patients. Therefore, measurement of RI and PI values together with IMT are recommended for early diagnosis of atherosclerosis in hemodialysis patient.
The Value of Reporting Decreased or Absent Fetal Movements by Mothers in Predicting the Pregnancy Outcome
Farahnaz Torkestani,Nafiseh Zafarghandi
Iranian Journal of Medical Sciences , 2011,
Abstract:
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