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Search Results: 1 - 10 of 1292 matches for " Hengameh Hosseini "
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Stroke and Cardiovascular Disease among Women  [PDF]
Hengameh Hosseini
Health (Health) , 2015, DOI: 10.4236/health.2015.714203
Abstract: Stroke falls under the umbrella of cardiovascular disease (CVD), which is the number one killer of Americans. CVD, including stroke and heart disease, takes about 267,000 women’s lives every year [1]. In the present study, a health risk assessment of a population of women residing in North-eastern Pennsylvania was conducted to provide an estimate of vulnerability to stroke on the basis of medical history, genetic predisposition, and other lifestyle factors. Using the Health Belief model of Rosenstock, Strecher, and Becker [2] and the stage model of Prochaska, Diflemente, and Norcross [3], a health promotion plan was developed to address the needs of that population. An evaluation of risks that can and cannot be modified is developed to help people understand the basic lifestyle changes that could be made to prevent CVD, which includes stroke. An action plan was developed to lower the risk of stroke among women based on their individual needs and to raise awareness throughout the United States. Individuals should take the essential precautions for their personal cases. This will substantially lower the risk of CVD, especially stroke, among women.
Ethics, the Illegality of Physician Assisted Suicide in the United States, and the Role and Ordeal of Dr. Jack Kevorkian before His Death
Hengameh M. Hosseini
Review of European Studies , 2012, DOI: 10.5539/res.v4n5p203
Abstract: The paper tries to argue that physician-assisted suicide (PAS), which is opposed by the AMA and all US states except Oregon, is a moral and ethical dilemma that faces physicians, ethicists, legal experts, and others. To demonstrate this, the various dimensions of the debate are explored. This is accomplished by discussing the legal, ethical, medical and political ordeals of its most infamous practitioner, Dr. Jack Kevorkian of Michigan (1928-2011). As the paper argues, Dr. Kevorkian’s belief in the practice of PAS led him to assist in the suicide of James Adkins in 1998. This began his legal problems, which lasted for about ten years (while continuing this practice, causing the state of Michigan to pass stricter laws against PAS). However, it was his more active administration of the suicide of Thomas York (who had Lou Gehrig’s disease), and its demonstration on CBS’ 60-Minutes program, that led to his most severe legal ordeal in 1998 that landed him a prison sentence of 10 to 25 years (of which he served 8). In the paper, various ethical, moral, and legal arguments, evoked by ethicists, philosophers and legal experts are presented. However, the paper begins with the ordeal of Dr. Kevorkian and the reaction to the 60-Minutes piece by the media, religious authors, and others are presented.
Isolation of bacteria causing secondary bacterial infection in the lesions of cutaneous leishmaniasis
Ziaie Hengameh,Sadeghian G
Indian Journal of Dermatology , 2008,
Abstract: Background: Cutaneous Leishmaniasis (CL) is a parasitic disease characterized by single or multiple ulcerations. Secondary bacterial infection is one of the complications of the disease that can increase the tissue destruction and the resulting scar. Objective: To effectively determine the incidence of real secondary bacteria infection in cutaneous leishmaniasis, we designed the current study. Methods and Materials: This was a cross-sectional study performed in Skin Diseases and Leishmaniasis Research Centre, Isfahan, Iran. In this study, 854 patients with confirmed CL were enrolled. Samples were taken from all the patients. Sterile swaps were achieved for the ulcer exudates and scraping was used for nonulcerated lesions. All the samples were transferred to tryptic soy broth medium. After 24 h of incubation in 37°C, they were transferred to eosin methylene blue agar (EBM) and blood agar. Laboratory tests were used to determine the species of bacteria. All of the collected data were analyzed by SPSS software and chi-square. Results: Among 854 patients with confirmed cutaneous leishmaniasis, 177 patients (20.7%) had positive cultures for secondary bacterial infection. Bacteria isolated from the lesions were as follows: Staphylococcus aureus - 123 cases (69.4%), coagulase negative Staphylococcus - 41 cases (23.1%), E. coil - 7 cases (3.9%), Proteus - 3 cases (1.7%) and Klebsiella - 3 cases (1.7%). Conclusions: The incidence of secondary bacterial infection in lesions of CL was 20.7%. The most common isolated pathogen was Staphylococcus aureus . The incidence of secondary bacterial infection was significantly more in the ulcerated lesions as compared with nonulcerated lesions ( P = 0.00001).
Biological Apexogenesis of Undeveloped Tooth in a Patient with Spondyloepiphyseal Dysplasia: A Case Report
Hengameh Ashraf,Mahsa Eskandarinezhad
Iranian Endodontic Journal , 2010,
Abstract: This case report describes treatment of a necrotic immature permanent mandibular first molar with pulpal necrosis in 9-year old female with spondyloepiphyseal dysplasia. The coronal half of the root canal was debrided with a file #30 to remove necrotic tissue, and irrigated with chlorhexidine 0.12%. Bleeding was evoked to form an intracanal blood clot; the wound was then dressed with calcium hydroxide medication and provisionally restored with GIC. This was repeated at intervals of 1, 3 and 6 months. After six months, radiographic evidence revealed thickening of dentinal walls and apical closure. The progressive increase in dentinal wall thickness and apical development suggests that desirable biologic responses can occur with this form of treatment for the necrotic open apex of immature permanent teeth.
Schwannoma of the Brachial Plexus Presented as a Neck Mass: A Case Report and Review of the Literature  [PDF]
Aslan Ahmadi, Hengameh Hirbod, Mostafa Cheraghipoor, Farzad Izadi
International Journal of Otolaryngology and Head & Neck Surgery (IJOHNS) , 2015, DOI: 10.4236/ijohns.2015.42019
Abstract: Schwannomas of the head and neck as well as brachial plexus primary tumors are both uncommon entities, and combination of these conditions is quite rare. Schwannomas of the brachial plexus are usually asymptomatic and they present as slowly enlarging masses in the supra- or infraclavicular regions. Although imaging plays a routine role in the detection of these neoplasms, identification of the nerve origin is not often feasible until the time of surgery. Definitive diagnosis is based on histopathological features with presence of spindle-shaped Schwann cells. We report a case of a middle aged woman with left lateral mid-neck mass, which based on the clinical findings, was provisionally diagnosed as a painless lymphadenopathy. Ensuing excisional biopsy revealed the brachial plexus as the origin of a tumor, which subsequently was confirmed to be a schwannoma with microscopic evaluation. The course of disease was complicated with upper brachial plexus injury which was recovered by sural nerve graft.
Evolutionary Back Grounds of Human Left Handedness
Hengameh Alibeik,S. Abdolhamid Angaji
Research Journal of Biological Sciences , 2012, DOI: 10.3923/rjbsci.2010.36.41
Abstract: It has been reported the coexistence of both right and left-handed individuals at least since the Upper Paleolithic. There is still today a polymorphism of handedness in humans, in all populations. Left-handers are in the minority and left-handedness seems to be associated with several fitness costs, such as poorer health, lower height or reduced longevity. In this context, the persistence of the polymorphism is interesting and suggests that left-handedness must be associated with enhanced abilities. In humans, it has been proposed that the polymorphism of handedness is maintained by negative frequency-dependent selection (advantage being greater when the frequency of a trait is lower). The frequency-dependent advantage of left-handers in physical fights is strongly suggested by both the study of interactive sports in industrialized societies and a cross-cultural comparison of traditional societies. In western societies, left-handers are supposed to have a socio-economic status advantage. The differences between right and lefthanders socio-economic statuses could be related to their reproductive success, though the importance of socio-economic status in human mate choice directly benefits the offspring.
Introducing a model for competitiveness of suppliers in supply chain through game theory approach
Hengameh Cighary Deljavan,Fariba Sadeghi
Decision Science Letters , 2012, DOI: 10.5267/j.dsl.2012.08.001
Abstract: Cighary Deljavan and Fariba Sadeghi PDF (300 K)Abstract: The purpose of the present study is to introduce a model for competitiveness of suppliers in supply chain through game theory approach in one of the automobile companies of Iran. In this study, the game is based on price and non-price factors and this company is going to estimate the real profit obtained from collaboration with each of supply chain members. This happens by considering the governing competitive condition based on game theory before entering a bit for purchase of α piece as spare part among 8 companies supplying this piece as the supply chain members. According to experts in this industry, the quality is the main non-price competitiveness factor after price. In the current research models, the model introduced by Lu and Tsao (2011) [Lu, J.C., Tsao, Y.C., & Charoensiriwath, C. (2011). Competition Under manufacturer Service and retail price. Economic Modeling, 28,1256-1264.] with two manufacturers- one distributer, being appropriate for the research data, has been considered as the basis and implemented for case study and then it has been extended to n-manufacturers-one common retailer. Following price elasticity of demand, potential size of market or maximum product demand, retailer price, production price, wholesale price, demand amount, manufacturer and retailer profit are estimated under three scenario of manufacturer Stackelberg, Retailer Sackelberg and Vertical Nash. Therefore, by comparing them, price balance points and optimum level of services are specified and the better optimum scenario can be determined. Sensitivity analysis is performed for new model and manufacturers are ranked based on manufacture profit, Retailer profit and customer satisfaction. Finally, in this research in addition to introducing-person game model, customer satisfaction, which has been presented in the previous models as a missed circle are analyzed.
Secure Cognitive Radio Communication for Internet-of-Things: Anti-PUE Attack Based on Graph Theory  [PDF]
Azar Hosseini, Bahman Abolhassani, Arezoo Hosseini
Journal of Computer and Communications (JCC) , 2017, DOI: 10.4236/jcc.2017.511003
Abstract: Internet of Things (IoT) paradigm with strong impact on future life will be interconnected through Cognitive Radio Networks (CRNs). CRNs with Ubiquitous trait are highly promising to achieve interference-free and on-demand services. CRs are able to sense the spectral environment, to detect unoccupied bands, and to use them for signal transmissions. This opportunity encourages malicious Users to surpass CRs by Primary User Emulation (PUE) attack and use vacant spectrums. This paper proposes an unsupervised algorithm to distinguish CRs from PUs regardless of static and mobile user. Employing K-means and graph theory are coincident in our algorithm to improve detection outcomes. The edge of graph corresponding to the relation between signals is used and the result of comparison the signal properties is exposed to different clusters. The Receiver Operating Characteristic (ROC) and Detection Error Tradeoff (DET) of our proposed algorithm prove our claim.
In vitro Assessment of Bond Strength of three Luting Agents to Fiber Reinforced Composite Posts
Azita Kaviani,Hengameh Alinejad,Fatemeh Dabaghi Tabriz
Jundishapur Scientific Medical Journal , 2013,
Abstract: Background and Objective:The increasing demand for esthetic posts and cores has led to the development of Metal–free post and core systems. Fiber–reinforced composite posts are one of them. The aim of this study was to evaluate bond strength of three adhesive–resin–cements to fiber posts using push– out test. Subjects and Methods: In this experimental in vitro study. Thirty endodontically treated teeth were randomly divided into three groups (n=10 each). Posts were luted with three resin cements (Rely x ARC, Multi link, Panavia F2). Cemented posts were sectioned in equal thirds using cutting machine. Each slice was polished by a soft and wet abrasive paper in order to get a 2mm thickness. Loading was performed by a testing machineat at a speed of 1mm/min until the post was dislodged. Data were analyzed using post hoc-test and ANOVA tests with P<0.05 as the level of significance.Results: The type of cement bond strength did not vary significantly between coronal and middle sections. However, there were significant differences between apical sections of Rely x ARC and Multi link groups (P=0.032). Conclusion: Bond strength to the fiber post was affected by the type of cement and root regions.
On the symmetry group of the n-dimensional Berwald-Moor metric
Hengameh Raeisi-Dehkordi,Mircea Neagu
Mathematics , 2012,
Abstract: In this paper we parametrize the symmetry group of the n-dimensional Berwald-Moor metric. Some properties of this Lie group are studied, and its corresponding Lie algebra is computed.
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