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Search Results: 1 - 10 of 2938 matches for " Hweung-Kon Hwang "
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Efficacies of the new Paclitaxel-eluting Coroflex Please? Stent in percutaneous coronary intervention; comparison of efficacy between Coroflex Please? and Taxus? (ECO-PLEASANT) trial: study rationale and design
Jae-Bin Seo, Hui-Kyung Jeon, Kyung-Woo Park, Jong-Seon Park, Jang-Ho Bae, Sang-Wook Kim, Keon-Woong Moon, Jae-Woong Choi, Sang-Gon Lee, Woo-Young Chung, Tae-Jin Youn, Soo-Joong Kim, Doo-Il Kim, Byung-Ok Kim, Min-Su Hyon, Keum-Soo Park, Tae-Joon Cha, Hweung-Kon Hwang, Seung-Ho Hur, Hyo-Soo Kim
Trials , 2009, DOI: 10.1186/1745-6215-10-98
Abstract: In the comparison of Efficacy between COroflex PLEASe? ANd Taxus? stent(ECO-PLEASANT) trial, approximately 900 patients are being prospectively and randomly assigned to the either type of Coroflex Please? stent and Taxus Liberte? stent via web-based randomization. The primary endpoint is clinically driven target vessel revascularization at 9 months. The secondary endpoints include major cardiac adverse events, target vessel failure, stent thrombosis and angiographic efficacy endpoints.The ECO-PLEASANT trial is the study not yet performed to directly compare the efficacy and safety of the Coroflex Please? versus Taxus Liberte? stent. On the basis of this trial, we will be able to find out whether the Coroflex Please? stent is non-inferior to Taxus Liberte? stent or not.ClinicalTrials.gov number, NCT00699543.Previous randomized trials have shown the efficacy of a slow-release polymeric sirolimus-eluting stent (Cypher?, Cordis, Warren, NJ, USA), paclitaxel-eluting stent (Taxus?, Boston Scientific, Natick, MA, USA), and zotarolimus-eluting stent (Endeavor?, Medtronic, Minneapolis, MN, USA) over bare metal stents in reducing neointimal hyperplasia, late luminal loss, and angiographic restenosis leading to decreased target lesion revascularization [1-11] The Paclitaxel-eluting Coroflex Please? stent is a newly developed drug eluting stent using the Coroflex? stent platform combined with the drug paclitaxel contained in a polymer coating[12]In the PECOPS I, which was one-arm observational study, the results of Coroflex Please? stent were within the range of other Paclitaxel-eluting coronary stents [12,13] Compared with binary restenosis rate of 7.9% in Taxus IV trial, Coroflex? Please stent showed 7.8% of restenosis rate[7] The 3.1% of 30 day MACE rate is within the range of other trials with stents eluting Paclitaxel or Sirolimus. The 6 month MACE rates in PECOPS I were 8.0%, which was similar to 7.8%, and 8.5% in Taxus II MR and SR, respectively[6] In Taxus IV, 9 month f
Ileal angiomyolipoma manifested by small intestinal Intussusception
Chang Ho Lee, Jong Hun Kim, Doo Hyun Yang, Yong Hwang, Myoung Jae Kang, Young Kon Kim, Min Ro Lee
World Journal of Gastroenterology , 2009,
Abstract: Angiomyolipomas (AMLs), a form of benign mesenchymal hamartoma, arise primarily in the kidneys of patients with or without tuberous sclerosis. Extra-renal AMLs are very rare and are most commonly found in the liver. AMLs of the small intestine are exceedingly rare. Here, a case of a 28-year-old man, who presented with ileal intussusception caused by ileal AML is reported. The clinicopathological and immunohistochemical findings of ileal AMLs are discussed and the literature on small intestinal AMLs is reviewed.
Estimating the Recurrence Periods of Earthquake Data in Turkey  [PDF]
Hande Kon?uk, Serpil Akta?
Open Journal of Earthquake Research (OJER) , 2013, DOI: 10.4236/ojer.2013.21002
Abstract: In this paper, the 231 earthquake data of magnitude 5 and higher, between north (39.00o-42.00o) and east (26.00o-45.00o) coordinates in Turkey from July 12, 1900 to October 23, 2011 are statistically analyzed. The probability density function and cumulative function of the magnitude are derived. It is shown that magnitude random variable is distrib-uted as the exponential distribution. The recurrence periods is also calculated. Recurrence period is estimatedapproxi-matelytwo times a year for an earthquake having magnitude 5.2. Using the Gutenberg-Richter function, the relation between magnitude and frequency is represented.
Quasi-Static and Dynanmic Deformation Behaviors of Medium-Carbon Steels in a Wide Temperature Range  [PDF]
Byoungchul Hwang
Materials Sciences and Applications (MSA) , 2011, DOI: 10.4236/msa.2011.26076
Abstract: This paper presents a study of the quasistatic and dynamic deformation behaviors of conventional and microalloyed medium-carbon steels in a wide temperature range. As strain rate increased, the flow stress increased at room temperature, but occasionally did not at elevated temperatures. The flow stress of the microalloyed steel containing precipitates was less sensitive to strain rate at room temperature than that of the conventional steel due to a relatively larger activation length. Microstructural observation of the steels deformed after compression test indicated that inhomogeneous deformation became more serious with increasing strain rate and temperature without fracturing in the highly localized region.
Functional and Molecular Changes of the Bladder in Rats with Crushing Injury of Nerve Bundles from Major Pelvic Ganglion to the Bladder: Role of RhoA/Rho Kinase Pathway
Su Jin Kim,Dong Sup Lee,Woong Jin Bae,Seol Kim,Sung Hoo Hong,Ji Youl Lee,Tae-Kon Hwang,Sae Woong Kim
International Journal of Molecular Sciences , 2013, DOI: 10.3390/ijms140917511
Abstract: Voiding dysfunction is a common complication after radical pelvic surgery. To reduce this complication, nerve-sparing radical pelvic surgery was introduced. However, several patients experienced voiding difficulty despite nerve-sparing radical pelvic surgery. Thus, we investigated the functional and molecular changes of the bladder in rats, which demonstrated voiding dysfunction induced by nerve damage during nerve-sparing radical pelvic surgery. Male rats were used and assigned to normal, sham-operated, and bilateral crushing nerve bundles from major pelvic ganglion (MPG) to bladder group. After one, two, and four-week crushing injury, significantly decreased contractile response and increased connective tissue of the detrusor were observed and these results were reliable findings with voiding difficulty following nerve-sparing radical pelvic surgery. After crushing injury, significantly increased M2 muscarinic receptor expression was observed and this might be regarded as the compensatory response. However, M3 muscarinic receptor expression was not significantly changed. The expression of RhoA, ROCK-α, and ROCK-β was significantly increased after one, two, and four-week crushing injury. From these results, the down-regulation of RhoA/Rho kinase pathway might lead to the decreased bladder contractility after crushing injury of nerve bundles from MPG to the bladder despite of the compensated up-regulation of M2 muscarinic receptor.
Mudan?as recentes no perfil da distribui??o ocupacional da popula??o brasileira
Kon, Anita;
Revista Brasileira de Estudos de Popula??o , 2006, DOI: 10.1590/S0102-30982006000200004
Abstract: this article analyzes recent changes in the profile of the brazilian labor structure, according to sector segmentation and specific occupational groups, especially during the 1990s. theoretical aspects on the causes of the segmentation of the labor market are first examined. empirical information related to structural changes in labor markets in the worldwide economy are then discussed, in order to locate brazil in this context. specifically, indexes of occupational structure and regional difference quotients for brazil were drawn up. the results show that, besides significant occupational transformations, structural changes occurred in the regions, but not among them.
Las políticas de empleo en Brasil: obstáculos estructurales
Revista Venezolana de Economía y Ciencias Sociales , 2005,
Abstract: the aim of this article is to analyze the way in which, in brazil, the current policies of generating employment are being implemented and what are the conjunctural and structural obstacles they confront. the author begins by presenting a general vision of the state of the labor market during the nineties. she than indicates the institutional initiatives designed to create employment opportunities and describes the main programs implemented. finally, she examines the most important structural obstacles to a more effective result.
Sobre a economia política do desenvolvimento e a contribui??o dos servi?os
Kon, Anita;
Revista de Economia Política , 2007, DOI: 10.1590/S0101-31572007000100007
Abstract: on the political economy of development and the contribution of services. this paper aims to ponder on recent approaches to political economy of development, that bring about new concepts about the role of services activities in the economic development process. the analysis begins by checking the new attributions of services entailed by the productive paradigm changes that have occurred since the 1970's. then, it examines the debate about the new kind of society, called "post-industrial", which is centered in the services dynamics. finally, it discusses the relevance of social capital disponibility, as a prime factor to attain economic development
A internacionaliza??o dos servi?os
Kon, Anita;
Revista de Administra??o de Empresas , 1999, DOI: 10.1590/S0034-75901999000100006
Abstract: this paper aims to analyse the changes in the role of services in the external trade context. first, it focuses the development of the technological and productive restructuring bases, preceding the process of internationalization of services, that resulted in this transformation. following, it examines the economic conditioning of service internationalization, which led to the revision of the non-tradable nature of these activities, and it analyses the diversified dynamics of this process in countries of several levels of development. finally, it discusses the regional effects caused by this process of international diffusion of service commercialization.
A distribui o do trabalho informal no Brasil em uma perspectiva de gênero
Anita Kon
Revista Venezolana de Análisis de Coyuntura , 2012,
Abstract: El artículo analiza la distribución del trabajo en el sector informal, de acuerdo con las disparidades de género. Primeramente examina los supuestos teóricos sobre el tema del trabajo informal y su relación con la exclusión social. El análisis empírico se lleva a cabo partiendo de la distribución entre los sexos, en el período más reciente, según la segunda categoría del empleo, la distribución por edad, educación y sector, la duración de la permanencia en el empleo y el tipo trabajo, el ingreso promedio, las razones para la entrada en el sector informal y las horas de trabajo. Los resultados del estudio dejan claro que el trabajo de las mujeres no sólo depende de las condiciones del mercado de trabajo, sino también de otros factores como el cultural que a menudo conducen a la asignación de los trabajadores en actividades de informales, de carácter inestable y menor remuneración.
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