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Search Results: 1 - 10 of 43004 matches for " Shu-Yuan Chao "
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Constructing and Evaluating an Intergenerational Academic Service-Learning Curriculum in Gerontology  [PDF]
Hsing-Yuan Liu, Chia-Chen Chang, Shu-Yuan Chao
Creative Education (CE) , 2015, DOI: 10.4236/ce.2015.68078
Abstract: Intergenerational Service-Learning has been documented to enhance student learning. Research indicates that students in healthcare professions view working with the geriatric population as a low priority due to negative stereotypes of the elderly. The purpose of this study was to develop a teaching model for establishing partnerships between academic programs and community services for students of gerontology and to evaluate the effect of an Intergeneration Service-Learning curriculum. This research adopted a qualitative approach to study the learning experiences of nursing students during an interdisciplinary community-based healthcare course. Data were collected by participant observation, students’ written journal reflections, verbal presentation of their reflections, instructors’ observations, and focus group discussion. It introduced the rationale, development process, content, and evaluation of the teaching model designed by the researcher. The effects of this curriculum not only were reported as a bridge across generations connecting youth and elders but also fostering positive attitude, improving the ability to care and enhancing commitment to elder people. This article provided an overview of Intergenerational Service-Learning teaching model that involved students in learning outside the traditional classroom and provided a needed service in the community. Otherwise, an important element of this teaching model was to infuse “reflection” in learning process of the nursing students by faulty, which would be appropriate for improving the quality of education and the findings of this study provided direction for the course design for gerontology.
Intraductal Papillary Mucinous Neoplasm of the Pancreas: An Update
Shu-Yuan Xiao
Scientifica , 2012, DOI: 10.6064/2012/893632
Intraductal Papillary Mucinous Neoplasm of the Pancreas: An Update
Shu-Yuan Xiao
Scientifica , 2012, DOI: 10.6064/2012/893632
Abstract: Intraductal papillary mucinous neoplasm (IPMN) is a cystic tumor of the pancreas. The etiology is unknown, but increasing evidence suggests the involvement of several tumorigenesis pathways, including an association with hereditary syndromes. IPMN occurs more commonly in men, with the mean age at diagnosis between 64 and 67 years old. At the time of diagnosis, it may be benign, with or without dysplasia, or frankly malignant with an invasive carcinoma. Tumors arising from the main pancreatic duct are termed main-duct IPMNs, those involving the branch ducts, branch-duct IPMNs. In general, small branch-duct IPMNs are benign, particularly in asymptomatic patients, and can be safely followed. In contrast, main-duct tumors should be surgically resected and examined carefully for an invasive component. In the absence of invasion, patient’s survival is excellent, from 94 to 100%. For patients with an IPMN-associated invasive carcinoma, the prognosis overall is better than those with a de novo pancreatic ductal adenocarcinoma, with a 5-year survival of 40% to 60% in some series. However, no survival advantage can be demonstrated if the invasive component in an IPMN patient is that of the conventional tubular type (versus mucinous carcinoma). Several histomorphologic variants are recognized, although the clinical significance of this “subtyping” is not well defined. 1. Introduction In the early 1980s, it became clear that while some mucinous cystic tumors of the pancreas do not communicate with the pancreatic duct system, many others arise within the duct. The latter are unique biologically, pathologically, and clinically, although they were traditionally “lumped” into the category of mucinous cystadenomas (or cystadenocarcinomas if malignant features were identified). The term “intraductal papillary mucinous tumor (IPMT)” and several other terms (including adenoma and carcinoma) were proposed to describe these intraductal lesions. These tumors were “officially” separated from mucinous cystadenoma in the 1996 World Health Organization (WHO) Classification. Currently, the preferred name is intraductal papillary mucinous neoplasm (IPMN). When invasive carcinomas arise from IPMN, overall they are associated with better prognosis and patient survival as compared to carcinomas not associated with IPMN. In this paper, clinical and pathology characteristics, with emphasis on update in classification and risk assessment, are discussed, based on extensive literature review and the author’s experience. Attempt is also made to address several questions regarding the
Time-Symmetric Approach to Gravity
Shu-Yuan Chu
Physics , 1998,
Abstract: Quantization of the time symmetric system of interacting strings requires that gravity, just as electromagnetism in Wheeler-Feynman's time symmetric electro- dynamics, also be an "adjunct field" instead of an independent entity. The "adjunct field" emerges, at a scale large compared to that of the strings, as a "statistic" that summarizes how the string positions in the underlying space- time are "compactified" into those in Minkowski space. We are able to show, WITHOUT adding a scalar curvature term to the string action, that the "adjunct gravitational field" satisfies Einstein's equation with no cosmological term.
Is It Possible to Disentangle an Entangled Quantum State?
Shu-Yuan Chu
Physics , 1998,
Abstract: Experimental tests of the suggestion that the generalization of Wheeler and Feynman's time symmetric system is the dynamical basis underlying quantum mechanics are considered. In a time-symmetric system, the instantaneous correlations exhibited by two spatially separated particles in an entangled state can be established through other particles, and can reveal advanced interaction effects. In particular, the existence of advanced gravity waves may be detectable through suitable arrangements at the Laser Interferometer Gravitation- Wave Observatory.
A New Particle Filter Based on Numerical Integration Method

Liang Jun-li,Yang Shu-yuan,Qu Chao,Gao Li,

电子与信息学报 , 2007,
Abstract: This paper introduces a new particle filter for nonlinear and non-Gaussian systems.The divided difference filter based on numerical integration is used for generating the importance density functions.As it integrates the new observations into system state transition density, which approximates to the state posterior density, the proposed particle filter has the better performance than the conventional one. Finally, the validity of this method is well verified by the computer simulations.
Study of Localization of MIMO and MISO Radars

Chao Shu-yuan,Chen Bai-xiao,Yang Ming-lei,Zhang Shou-hong,

电子与信息学报 , 2011,
Abstract: In some applications, a target needs to be located by a small-sized mobile platform, such as plane or ship. In this paper, the target is located by a small-sized mobile platform assisted by an array in the base station, which could work together under two modes: Multiple-Input Multiple-Output (MIMO) mode and Multiple-Input Single-Output (MISO) mode. The geometric model is established. Also, the Geometrical Dilution Of Precision (GDOP) of the relative coordinating errors of the target are formulated and factors affecting GDOP are analyzed under the two modes respectively. Simulation results show that: under MIMO mode, the GDOP is irrelevant neither to the azimuth of the target nor to the location of the small mobile platform; the location precision under MIMO mode is higher than that under MISO mode when the small mobile platform is far from the target or the number of array elements is large; however, lower when the small mobile platform is close to the target and the number of array elements is small.
Expression of transmembrane carbonic anhydrases, CAIX and CAXII, in human development
Shu-Yuan Liao, Michael I Lerman, Eric J Stanbridge
BMC Developmental Biology , 2009, DOI: 10.1186/1471-213x-9-22
Abstract: The co-localization of CAIX and HIF-1α was limited to certain cell types in embryonic and early fetal tissues. Those cells comprised the primitive mesenchyma or involved chondrogenesis and skin development. Transient CAIX expression was limited to immature tissues of mesodermal origin and the skin and ependymal cells. The only tissues that persistently expressed CAIX protein were coelomic epithelium (mesothelium) and its remnants, the epithelium of the stomach and biliary tree, glands and crypt cells of duodenum and small intestine, and the cells located at those sites previously identified as harboring adult stem cells in, for example, the skin and large intestine. In many instances co-localization of CAIX and HIF-1α was not evident. CAXII expression is restricted to cells involved in secretion and water absorption such as parietal cells of the stomach, acinar cells of the salivary glands and pancreas, epithelium of the large intestine, and renal tubules. Co-localization of CAXII with CAIX or HIF-1α was not observed.The study has showed that: 1) HIF-1α and CAIX expression co- localized in many, but not all, of the embryonic and early fetal tissues; 2) There is no evidence of co-localization of CAIX and CAXII; 3) CAIX and CAXII expression is closely related to cell origin and secretory activity involving proton transport, respectively. The intriguing finding of rare CAIX-expressing cells in those sites corresponding to stem cell niches requires further investigation.Carbonic anhydrases are metalloenzymes that are ubiquitous in nature, being found in prokaryotes and eukaryotes [1-3]. They are encoded by five distinct, evolutionarily related gene families (α, β, γ, δ and ζ). The complexity of the family membership increases with evolutionary progress and, in mammals, which contain 16 α-CA isozymes, the distribution of expression of family members differs enormously, varying from expression in virtually all cells (CAII) to very discrete temporal and tissue specific exp
Chronic hepatitis C is a common associated with hepatic granulomas
Ned Snyder, Juan G Martinez, Shu-Yuan Xiao
World Journal of Gastroenterology , 2008,
Abstract: AIM: To determine the most frequent etiologies of hepatic epithelioid granulomas, and whether there was an association with chronic hepatitis C virus (HCV).METHODS: Both a retrospective review of the pathology database of liver biopsies at our institution from 1996 through 2006 as well as data from a prospective study of hepatic fibrosis markers and liver biopsies from 2003 to 2006 were reviewed to identify cases of hepatic epithelioid granulomas. Appropriate charts, liver biopsy slides, and laboratory data were reviewed to determine all possible associations. The diagnosis of HCV was based on a positive HCV RNA.RESULTS: There were 4578 liver biopsies and 36 (0.79%) had at least one epithelioid granuloma. HCV was the most common association. Fourteen patients had HCV, and in nine, there were no concurrent conditions known to be associated with hepatic granulomas. Prior interferon therapy and crystalloid substances from illicit intravenous injections did not account for the finding. There were hepatic epithelioid granulomas in 3 of 241 patients (1.24%) with known chronic HCV enrolled in the prospective study of hepatic fibrosis markers.CONCLUSION: Although uncommon, hepatic granulomas may be part of the histological spectrum of chronic HCV. When epithelioid granulomas are found on the liver biopsy of someone with HCV, other clinically appropriate studies should be done, but if nothing else is found, the clinician can be comfortable with an HCV association.
Product Utility and Firm''''s Strategies in Nash Equilibrium Condition of Market Games

JIANG Qing-fang,JIANG Shu-yuan,

系统工程理论与实践 , 2004,
Abstract: This paper advances the theory of multiattributed utility structure of product functions and replaces idea and criterion of manufacturing product. On the basis of the theory a model of firm's optimal strategy in Nash equilibrium condition of market games is constructed. The model may scientifically analyze a Firm's product strategies, price strategies and else strategies.
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