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Search Results: 1 - 10 of 270 matches for " Leyla Sahebi "
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Epidemiologic and Clinical Characteristics of Migraine and Tension-Type Headaches among Hospitals Staffs of Shiraz (Iran)
Ayatollahi Seyyed Mohammad Taghi,Sahebi Leyla,Borhani Haghighi Afshin
Acta Medica Iranica , 2009,
Abstract: Headache is a common symptom that constitutes a major health problem to all countries in the world. This study was conducted to estimate the prevalence of migraine and tension -type headaches(TTH), its associated occupational risk factors among Shiraz hospitals staffs, and to report on clinical characteristics of migraine and TTH with using the International Headache Society (IHS) diagnosis criteria. A random sample of 1023 staffs constituting a 20% sample of the hospitals staff population was selected. Sampling method was categorical random sampling. Within each group sampling was carried out systematically. Data were collected by screening questionnaire followed by clinical interviews, general physical and neurological examination, and diagnostic criteria of IHS. Prevalence of migraine, TTH and coexisting migraine and TTH were estimated as 11.2% (115 cases), 19.5% (199 subjects) and 3.2% (33 subjects) respectively. In this study , clinical characteristics of headache including type, site, number , intensity ,concomitant symptom of headaches had been surveyed. TTH and migraine headaches were significantly associated with self reported abnormal sleep pattern and female gender (P < 0.001). Also TTH was negatively associated with total 24hr duration of sleep and history of involvement in second job significantly (P<0.026). The average of prevalence of migraine and TTH were lower than their counter parts in western countries but higher than previous studies conducted in other Asian countries. Clinical characteristics were almost parallel with IHS criteria, headache- related missed work rates were higher for subjects with migraine headache, and also TTH and migraine were separate disorders and were not as a part of a continuum of headache disorders. Headache disorders deserve more attention, especially concerning strategies leading to adequate primary prevention, diagnosis and treatment.
Prevalence of Hypertension and Associated Variables in Hospital Staff in Iran
Leyla Sahebi,Reza Gholi Vahidi,Seyed Housein Mousavi
Acta Medica Saliniana , 2010, DOI: 10.5457/ams.138.10
Abstract: Introduction: The aim of this study was estimating the prevalence and risk factors of pre hypertension (Pre-HTN) and hypertension (HTN) among the staff of Shiraz (located at south of Iran) hospitals. Methods: A random sample of 1027 staff was selected. Sampling method was categorical random sampling. Part of the data was collected using interviews, while the rest was obtained from clinical examinations. Results: In this study 30.5% were males and 69.5% females. The prevalence of pre hypertension (Pre-HTN) and hypertension (HTN) was 37.0% and 8.6% respectively. Among these, 95.45% had Grade 1 and 4.55% Grade 2 hypertension. The prevalence of Pre-HTN and HTN was significantly higher in men than in women. Only 6% of hypertensive staff were on anti-hypertensive pharmacological treatment. Among the treated patients, BP was under control in 35% of staff. Multiple multi nominal regression analysis revealed that overweight and non-smoking males were strongly associated with Pre-HTN. The Male gender, increasing age, to work in clerical group and job dissatisfaction was strongly associated with HTN. Conclusion: The strikingly low level of knowledge and failure to control hypertension in hospitals are problems that need to be considered. Due to prominent difference in prevalence of this disease in men and women, male hospital staff should be considered as a high-risk group. Body mass index (BMI) and job satisfaction are two adjustable variables which need practical remedies. Advancement of knowledge and emphasis on physical activities for white-collar personnel are important steps that have potentially positive effects. In addition, although more studies are needed to investigate the relationship between cigarette smoking and blood pressure, it is prudent to monitor blood pressure closely in cardiac patients who are obligated to quit smoking.
Study Designs in Genetic Epidemiology
Leyla Sahebi,Saeed Dastgiri,Khalil Ansarin,Roya Sahebi,Seyyed Abolghasem Mohammadi
ISRN Genetics , 2013, DOI: 10.5402/2013/952518
Abstract: Genetic epidemiology, as a relatively new issue, aims to explore the independent role of genetic-environmental determinants of diseases. Genetic epidemiology studies, depending on the objective, encompass the most preliminary surveys from the attempts to find family history in the occurrence of diseases to the most advanced surveys including specific strategies by clinical trials in the prevention of genetic diseases. Different objectives in genetic epidemiology studies require special methods and study designs. In this review, chief designs including familial aggregation, heritability, segregation, linkage, and association are evaluated; likewise, the purpose of diverse kinds of studies and analyses is briefly discussed. The utilization of study designs and related analyses according to the aims are the main issues and necessary in the accurate implementation of the study. Some methodological issues in relation to studies on tuberculosis are also reported. Attention to these issues might be useful in the implementation of these methods in the studies designed for the prevention and treatment of genetic disorders. 1. Introduction Epidemiology is the study of distribution and determinants of disease frequency in human populations and the use of this information to control and promote health [1]. The goal of epidemiologic research is to collect valid and precise information on the causes, prevention, and treatment of disease [1]. Genetic epidemiology is the study of the role of genes and their interaction with environmental factors in the occurrence of disease in human populations [2]. The branch of genetic epidemiology is still quite young, although the parents of that (epidemiology and genetics) have rather long history [3]. The objectives of epidemiological studies in genetic science are to determine the risks related to allelic variants of candidate genes, to map more accurately regions of the genome for which there is evidence of linkage to disease susceptibility, and to contribute cases to a genome-wide search for susceptibility genes [4]. 2. Study Designs in Classic Epidemiology The selection of one design over another in studies depends on the particular research question [3] and also on cost, time, and ethical considerations. The most common types of studies are listed with brief explanations about them in Table 1 [1, 5–8]. Table 1: Main study designs in classic epidemiology. 3. Study Designs in Genetic Epidemiology Similar to classical epidemiology, observational studies in genetic epidemiology are divided into descriptive and analytical
Global 1 Estimation of the Cauchy Problem Solutions to the Navier-Stokes Equation  [PDF]
Asset Durmagambetov, Leyla Fazilova
Applied Mathematics (AM) , 2014, DOI: 10.4236/am.2014.513184
Abstract:

The analytic properties of the scattering amplitude are discussed, and a representation of the potential is obtained using the scattering amplitude. A uniform time estimation of the Cauchy problem solution for the Navier-Stokes equations is provided. The paper also describes the time blowup of classical solutions for the Navier-Stokes equations by the smoothness assumption.

 

The Study of Optoacoustic First and Second Sound Waves in Superfluid Helium under the Effect of Gaussian Laser Light Considering Electrostriction Mechanism  [PDF]
Leyla Safaei Kouchaksaraei
Journal of Modern Physics (JMP) , 2015, DOI: 10.4236/jmp.2015.67089
Abstract: The present paper is aimed to study the effect of Gaussian laser light on first and second sound waves in superfluid helium theoretically using optoacoustic method. The mechanism applied in this study is electrostriction mechanism. This study considers crystal parts of superfluid helium with a zero absorption coefficient applying electrostriction mechanism. Affecting Gaussian laser light on these crystal parts, a spectrum of cylindrical first and second sound waves and cylindrical slow and rapid waves is obtained. Meanwhile, frequency of waves amplitudes proportionate to time period of laser light is calculated.
Workplace Dyslexia & Specific Learning Difficulties—Productivity, Engagement and Well-Being  [PDF]
Janette Beetham, Leyla Okhai
Open Journal of Social Sciences (JSS) , 2017, DOI: 10.4236/jss.2017.56007
Abstract: This study is the first of its kind in the area of workplace dyslexia/neuro-divergence (in that it is temporal & focuses on one employing organisation) and it aims to support other organisations to learn and improve their businesses and their employees experience of working within their organisations. The report documents an ongoing temporal study of the work being undertaken at one of the worlds leading global universities to provide tailored support to their neuro-divergent members of staff (i.e. those with dyslexia, dyscalculia, dyspraxia & ADD/ADHD). Both qualitative and quantitative data have been collected to reflect the impact of having a clear & “accessible” process for obtaining support as well as having delivery which, although consistent in approach, is tailored to meet the unique needs of the individual. Neuro-divergent “conditions” are thought to affect approximately 18% of the population however whilst a largely inaccurate view of the associated difficulties exists; there is also a regrettable lack of understanding & appreciation of the strengths these processing differences can bring to business and society. Also, many of these individuals are either unaware that the challenges they may be experiencing are associated with a “processing difference” or, if they do know, they can be fearful of disclosure which, on both counts, results in many not accessing appropriate support and therefore not reaching their full potential. (“Individuals report fear of disclosure because of victimisation by the employer or bullying of workmates” [1].)
Generalized derivations with central values on lie ideals LIE IDEALS
Shervin Sahebi,Venus Rahmani
Mathematics , 2014,
Abstract: Let R be a prime ring of H a generalized derivation and L a noncentral lie ideal of R. We show that if l^sH(l)l^t in Z(R) for all lin2 L, where s, t> 0 are fi?xed integers, then H(x) = bx for some b in C, the extended centroid of R, or R satis?es S4. Moreover, let R be a 2-torsion free semiprime ring, let A = O(R) be an orthogonal completion of R and B = B(C) the Boolean ring of C. Suppose ([x1; x2]sH([x1; x2])[x1; x2]t in Z(R) for all x1; x2 in R, where s, t> 0 are fi?xed integers. Then there exists idempotent e in B such that H(x) = bx on eA and the ring (1-e)A satis?es S4.
A note on power values of derivation in prime and semiprime rings
Shervin Sahebi,Venus Rahmani
Mathematics , 2014,
Abstract: Let R be a ring with derivation d, such that (d(xy))^n =(d(x))^n(d(y))^n for all x,y in R and n>1 is a fi?xed integer. In this paper, we show that if R is a prime, then d = 0 or R is a commutative. If R is a semiprime, then d maps R in to its center. Moreover, in semiprime case let A = O(R) be the orthogonal completion of R and B = B(C) be the Boolian ring of C, where C is the extended centroid of R, then there exists an idempotent e in B such that eA is commutative ring and d induce a zero derivation on (1-e)A.
Rings in which power values of K-Engels with derivations annihilate a certain element
Shervin Sahebi,Venus Rahmani
Mathematics , 2014,
Abstract: Let R be a 2 torsion free semiprime ring and d a nonzero derivation. Further let A = O(R) be the orthogonal completion of R and B = B(C) the Boolean ring of C where C be the extended centroid of R. We show that if a[[d(x),x]^n- [y, d(y)]^m]^t = 0 such that a in R for all x, y in R, where m, n, t > 0 are fixed integers, then there exists an idempotent e in B such that eA is a commutative ring and d induce a zero derivation on (1-e)A.
The Discursive Suppression of Women: Female Evils as the Villains of the Motherhood Narrative
Leyla ?nal
Folklore : Electronic Journal of Folklore , 2011,
Abstract: This article focuses on the discursive construction and control of female sexuality and sexual activity, which simultaneously lead to the definition of women as inherently evil and to their suppression. This process is reinforced through a “motherhood narrative” inaugurated by a number of discourses, wherein female evils play the role of the villains, either as evil women or as anthropomorphised female beings that harm the mother or the unborn/newborn baby. The role of the “female evil”, a universally occurring archetypal motif, is to steal, kill or harm the child or the mother during pregnancy, labour, or puerperium. This motif is taken into account particularly in the framework of discourses that can be termed as medico-religious. Case studies of female evils are given as examples in the article, with a focus on the motherhood narrative and medico-religious discourses. This focus provides an insight to the way in which female evils pertain to the suppression of women within a more general framework. Female evils appear as necessary constructs of the aforementioned discourses to be able to control female sexual activity and the motherhood related fears of women, especially through the internalisation of control and through shaping the relationship of women with other women.
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