578 research outputs found

    A review of non-destructive testing methods of composite materials

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    A review provided about non-destructive testing (NDT) methods for the evaluation of composites. The review considers the capabilities of most common methods in composite NDT applications such as Visual Testing (VT or VI), Ultrasonic Testing (UT), Thermography, Radiographic Testing (RT), Electromagnetic Testing (ET), Acoustic Emission (AE), and Shearography Testing with respect to advantages and disadvantages of these methods. Then, methods categorized based on their intrinsic characteristics and their applications

    Development and optimization of a new suspension system for lower limb prosthesis

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    The increasing rate of lower limb amputations reinforces the need to develop a new suspension system that provides a better quality of life for the lower limb amputees. This study aimed to present a novel suspension system that improves amputee’s satisfaction in terms of donning and doffing process of the prosthetic lower limb. The design of the proposed suspension system was developed following the design methodology, to establish the amputee’s needs, objectives, functions, requirements and specifications in order to op-timize the final solution. The final solution is a combination of a guiding and fixation mechanisms that improve the donning and doffing process by driv-ing the serrated pin to the fixation system. The proposed suspension system is a good alternative to improve the quality of life of amputees with lower activity level on the daily basis.(undefined

    The impact of migration on the health status of Iranians: An integrative literature review

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    © 2015 Shishehgar et al. Background: Immigration, both voluntary and forced, is driven by social, political and economic factors. Accordingly, some discussions and debates have emerged in recent years about the impact of migration on the health status of migrants. The aim of this review was to identify the impact of migration on the health status of Iranian immigrants and present a conceptual framework to facilitate the design and delivery of services and supports for this particular immigrant group. Methods: Data for this integrative review were collected from Medline, PsycINFO, Scopus, ProQuest, Academic Search Complete, CINAHL, and Google Scholar search engine. The database search was limited to peer-reviewed literature, published in English, between 1980 and 2013. Results: Twenty six articles were included in the review. Analysis revealed several factors influencing the mental health of immigrants, including language insufficiency; unemployment; sense of discrimination; cultural shock; lack of social support; lack of information about health care services; and intimate partner violence. Conclusion: Findings of this review have contributed to development of a conceptual framework that delineates the impact of migration on Iranian immigrants' health. This conceptualization may also help in addressing the needs of other vulnerable groups during the transition phase of migration

    Treatment of Complicated Henoch-Schönlein Purpura with Mycophenolate Mofetil: A Retrospective Case Series Report

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    Background. Henoch-Schönlein purpura (HSP) is the most common childhood vasculitis with an incidence of approximately 10 per 100 000 children. There is some evidence to support steroid therapy in the treatment of severe abdominal pain, severe nephritis, and central nervous system involvement. However, the routine use of corticosteroids is controversial. Frequent relapses, lack of response to steroid, steroid dependency, and steroid side effects may occur in some patients. Mycophenolate mofetil (MMF) gains increasing popularity in the treatment of autoimmune disorders, but hitherto, the available evidence to support the use of MMF in HSP is limited to some case study reports. Case Presentation. We report six children with HSP who failed to respond to systemic steroid therapy, whereas MMF successfully treated the manifestations of the disease. Conclusion. The manifestations of HSP disappeared mainly during the first week of treatment with MMF and all the patients were in a complete remission at the end and after discontinuation of the therapy. In our experience, MMF appeared to be safe and effective for the maintenance of remission in the HSP patients

    Challenges of the preceptors working with new nurses: A phenomenological research study

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    © 2016. Introduction: Preceptors play an important role in the transition of new nurses to the practice setting, however, preceptorship experience has been perceived as stressful by preceptors. This study aimed to explore the lived experiences of nurse preceptors working with new nurses. Method: This qualitative study used the hermeneutic phenomenological design to explore the experiences of six nurse preceptors working with new nurses in a tertiary pediatric teaching hospital in Northwest of Iran, who were recruited by purposive sampling. Data were collected using in-depth semi-structured individual interviews between July 2014 and March 2015, and analyzed using the Diekelmann's seven-stage method. Results: Data analysis revealed three themes: 1) preceptorship as a challenging and stressful role; 2) lack of support; and 3) lack of appreciation. Preceptorship as 'a challenging and stressful role' was the constitutive pattern that unified the themes. Conclusion: The preceptorship of new nurses is challenging and stressful. Preceptors endure several roles concurrently, thus, their workload should be balanced appropriately in order not to compromise with one another and evade burnout. The preceptors need to be well supported and their contribution be appropriately recognized. Setting clear objectives and realistic expectations, and having clear policies and guidelines in place should help develop a preceptorship program that is more likely to bring about positive outcomes for both preceptors and new nurses

    The lived experiences of patients post coronary angioplasty: A qualitative study

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    © 2014 Society for Vascular Nursing, Inc. Few qualitative studies have focused on the experiences of patients post angioplasty. A deep understanding of patient experiences of care and the way a treatment can affect their everyday life is particularly important in chronic disease management. The aim of this study was to explore experiences that patients undergo after angioplasty. Using a phenomenological study design, 15 patients participated in individual, face-to-face, semistructured interviews. Data were analyzed using qualitative content analysis. The following core themes emerged from the analysis, which reflect the experiences of patients post angioplasty: (a) Angioplasty is a milestone in the patient's life, (b) living with a mended heart, and (c) psychological distress as an integral part of the patient's life. Participants after angioplasty went through both positive and negative changes in their life. Understanding these experiences is essential to modifying high-risk behaviors while supporting patients through their rehabilitation
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