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Yu-Hsiu Juan,Wei-Chou Chang,Chih-Yung Yu,Hsian-He Hsu,Guo-Shu Huang,De-Chuan Chan,Chang-Hsien Liu,Ho-Jui Tung 연세대학교의과대학 2011 Yonsei medical journal Vol.52 No.4
Purpose: To assess the clinical manifestations and multidetector-row computed tomography (MDCT) findings of afferent loop syndrome (ALS) and to determine the role of MDCT on treatment decisions. Materials and Methods: From January 2004 to December 2008, 1,100 patients had undergone gastroenterostomy reconstruction in our institution. Of these, 22 (2%) patients were diagnosed as ALS after surgery that included Roux-en-Y gastroenterotomy (n=9), Billroth-II gastrojejunostomy (n=7), and Whipple’s operation (n=6). Clinical manifestations and MDCT features of these patients were recorded and statistically analyzed. The presumed etiologies of obstruction shown on the MDCT were correlated with clinical information and confirmed by surgery or endoscopic biopsy. Results: The most common clinical symptom was acute abdominal pain, presenting in 18 patients (82%). We found that a fluid-filled C-shaped afferent loop in combination with valvulae conniventes projecting into the lumen was the most common MDCT features of ALS. Malignant causes of ALS, such as local recurrence and carcinomatosis, are the most common etiologies of obstruction. These etiologies and associated complications can be predicted 100% by MDCT. Conclusion: Our results suggest that MDCT is a reliable modality for assessing the etiologies of ALS and guiding treatment decisions.
Yu-Hsien Lien,Fu-Yao Liu,Jyy-Ning Chen,Yu-Shan Huang,Yu-Hong Wei,Chiyang Yu,Che-Chi Shu 한국생물공학회 2019 Biotechnology and Bioprocess Engineering Vol.24 No.2
Water lettuce (Pistia stratiotes) is one of the most well-known aquatic weeds as it causes problems in watercourses all over the world. This invasive species is fast-growing and thus has the potential for its use in preparing growth medium of microorganisms. Toward it, the pretreatment and enzymatic saccharification are positively the decisive processes. But there are other crucial processes, which are usually ignored by researchers. To the best of my knowledge, this presented work is the first time discovering that the juice obtained from water lettuce is valuable. Except for sterilization, no treatment is needed for the water lettuce’s juice and it can be directly served for cell growth. For Escherichia coli, Saccharomyces cerevisiae, Pichia pastoris, Bacillus subtilis, Lactococcus Lactis, Lactobacillus rhamnosus, and Lactobacillus plantarum, the cell density in the broth of water lettuce’s juice as the only carbon source is 10-60% higher than that in LB, YPD, BHI, M17, MRS. We then examined the production of microbial lipid by YM prepared in the juice of water lettuce. In comparison to commercial medium YM broth, the YM with juice caused 84% increase in the production of microbial lipid. A simple process of collecting juice notably increased productivity.
Yu-Li Chen,Kung-Liahng Wang,Min-Yu Chen,Mu-Hsien Yu,Chen-Hsuan Wu,Yu-Min Ke,Yi-Jen Chen,Yin-Yi Chang,Keng-Fu Hsu,Ming-Shyen Yen 대한부인종양학회 2013 Journal of Gynecologic Oncology Vol.24 No.1
Objective: To evaluate the clinical outcome and parameters related to coexisting endometrial carcinoma in women with tissuediagnosed endometrial hyperplasia. Methods: Between January 1991 and December 2009, three hundred and eighty-six patients with the presumptive diagnosis of endometrial hyperplasia were retrieved. Among these, one hundred and twenty-five patients were identified as having coexisting endometrial carcinoma in hysterectomy specimens. The three hundred and eighty-six patients were divided into two groups: the hyperplasia-benign group (261 cases) and the hyperplasia-malignant group (125 cases). Several clinical parameters including age, menopausal status, history of abnormal uterine bleeding, obstetrical history, medical history of diabetes and hypertension, BMI, and preoperative pathologic results were investigated. Results: Age ≥53 (odds ratio [OR], 2.40; 95% confidence interval [CI], 1.26 to 4.57), menopausal status (OR, 2.07; 95% CI, 1.14to 3.76), diabetes history (OR, 7.33; 95% CI, 2.79 to 19.26), abnormal uterine bleeding (OR, 3.99; 95% CI, 1.22 to 13.02), atypical endometrial hyperplasia (OR, 7.38; 95% CI, 4.03 to 13.49), and body mass index ≥27 (OR, 3.24; 95% CI, 1.76 to 5.97) were independent risk factors for prediction of endometrial hyperplasia coexisting with endometrial carcinoma. The diagnostic efficacy of atypical endometrial hyperplasia to predict the endometrial hyperplasia coexisting with endometrial carcinoma was better than or similar to those of other independent factors and combinations of these factors. Conclusion: Coexisting malignancy should be considered when examining endometrial hyperplasia patients with the related risk factors, especially atypical endometrial hyperplasia.
The Relationship between Source Text Memory and Interpreting Performance
( Yu Hsien Chiu ) 한국통역번역학회 2015 FORUM Vol.13 No.2
Cette etude cherche a enqueter la memoire textuelle et la memoire de fond du texte source apres une courte interpretation consecutive, et a examiner la relation entre ces deux formes de memoires et la qualite de l’interpretation. Un groupe d’interpretes en premiere annee de maitrise est recrute pour interpreter un discours anglais vers le mandarin phrase par phrase sans prendre de notes. Ils sont interrompus de temps en temps par un signe pour memoriser, et sont demandes a ecrire la phrase anglaise qu’ils viennent d’interpreter textuellement. Apres avoir interprete 30 phrases, nous procedons aux taches de reconnaissance des mots et des phrases. L’aptitude des interpretes pour reconnaitre les formes superficielles et le contenu du texte source est examinee, par le biais des mots originaux, des synonymes, des mots de similitudes phonologiques et distraits, des phrases originales, des phrases, des phrases de changements semantiques et distraites. Nous constatons que la memoire de phrase textuelle est bien plus precise en interpretation. Pour le test de reconnaissance, peu de sous-categories sont liees a la performance d’interpretation. Le resultat montre que la memoire textuelle degenere apres un long intervalle et les interpretes ont tendance a s’appuyer plus sur la memoire de fond pour l’identification.
Chun-Yu Hsiao,Yu-Hsien Wang 제어·로봇·시스템학회 2022 International Journal of Control, Automation, and Vol.20 No.4
This paper describes the application of a self-tuning fuzzy sliding mode controller (STFSMC) to design the control signal of an electro-hydraulic actuator under standard road excitation based on ISO 8608. The proposed damper was designed to achieve effective vibration isolation with an actuator force. The proposed damper was incorporated into a quarter-car system through experiments for the subsequent dynamic analysis of the suspension system. A single-input single-output (SISO) fuzzy inference was strategically used to regulate the slope of a sliding surface. In addition, the fuzzy control methodology was applied to achieve self-tuning online output of the scale factor of the fuzzy sliding mode controller. The comfortable riding time and ride comfort level were also evaluated based on ISO 2631-1. Experimental results revealed that the proposed controller demonstrated evident improvements in vehicle vibration suppression and the ride quality in comparison with passive and fuzzy logic controller control systems.
Wu Szu-Hsien,Yu Jin-Huei,Liao Yu-Ting,Liu Kuo-Hao,Chiang En-Rung,Chang Ming-Chau,Wang Jung-pan 한국조직공학과 재생의학회 2022 조직공학과 재생의학 Vol.19 No.3
BACKGROUND: Infant adipose-derived mesenchymal stem cells (ADSCs) collected from excised polydactyly fat tissue, which was surgical waste, could be cultured and expanded in vitro in this study. In addition, the collecting process would not cause pain in the host. In this study, the proliferation, reduction of senescence, anti-oxidative ability, and differentiation potential in the infant ADSCs were compared with those in the adult ADSCs harvested from thigh liposuction to determine the availability of infant ADSCs. METHODS: Proliferation was determined by detecting the fold changes in cell numbers and doubling time periods. Senescence was analyzed by investigating the age-related gene expression levels and the replicative stress. The superoxide dismutase (SOD) gene expression, adipogenic, neurogenic, osteogenic, and tenogenic differentiation were compared by RTqPCR. The chondrogenic differentiation efficiency was also determined using RT-qPCR and immunohistochemical staining. RESULTS: The proliferation, SOD (SOD1, SOD2 and SOD3) gene expression, the stemness-related gene (c-MYC) and telomerase reverse transcriptase of the infant ADSCs at early passages were enhanced compared with those of the adults’. Cellular senescence related genes, including p16, p21 and p53, and replicative stress were reduced in the infant ADSCs. The adipogenic genes (PPARc and LPL) and neurogenic genes (MAP2 and NEFH) of the infant ADSC differentiated cells were significantly higher than those of the adults’ while the expression of the osteogenic genes (OCN and RUNX) and tenogenic genes (TNC and COL3A1) of both demonstrated opposite results. The chondrogenic markers (SOX9, COL2 and COL10) were enhanced in the infant ADSC differentiated chondrogenic pellets, and the expression levels of SODs were decreased during the differentiation process. CONCLUSION: Cultured infant ADSCs demonstrate less cellular senescence and replicative stress, higher proliferation rates, better antioxidant defense activity, and higher potential of chondrogenic, adipogenic and neurogenic differentiation.
이동형 SNS(Social Network Service)의 이용 충족, 의존, 그리고 문제적 이용
우공선(Kung Hsien Yu),강재원(Jae Won Kang) 사이버커뮤니케이션학회 2011 사이버 커뮤니케이션 학보 Vol.28 No.4
본 연구는 이동형 SNS(Social Network Service)인 트위터(Twitter) 사용자를 대상으로 트위터의 이용을 통해 획득된 충족을 알아보고, 트위터의 이용 충족이 어떤 과정을 거쳐 트위터의 문제적 이용에 영향을 미치는지 조사하고자 했다. 연구결과는 다음과 같다. 첫째, 트위터 이용자들의 트위터 이용 충족 요인은 총 6개로 ‘타인과의 커뮤니케이션’, ‘즉시성’, ‘관계형성’, ‘단문성’, ‘정보성’, ‘유명인에 대한 접근성’ 등이 추출되었다. 또한 트위터의 이용 충족 요인 중 ‘즉시성’ 요인은 트위터를 이용함으로써 가장 높은 충족감을 주는 요인으로 밝혀졌다. 둘째, 트위터의 이용 충족 요인을 유형화하여 트위터의 의존 및 문제적 이용과의 관계를 살펴본 결과, 상호 유의미한 관련성이 있는 것으로 나타났다. 즉, 트위터의 이용 충족 요인은 트위터의 의존과 트위터의 문제적 이용에 영향을 미치는 것으로 조사됐다. This study is to find out usage gratification of Twitter and to investigate through which processes the usage gratification of Twitter becomes addictive and provides problematic uses with the target of users of Twitter which is a mobile type SNS(Social Network Service). First, as elements of usage gratification of Twitter of Twitter users, six elements such as communication with others, instantaneity, formation of relations, nature of short sentences, nature of information and approach to famous peoples were extracted. Also, it was appeared that instantaneity among elements of uses of Twitter provides the highest satisfaction by using Twitter. Second, as the result of reviewing relationship of dependence and problematic uses of Twitter by categorizing elements of usage gratification of Twitter, it was appeared that there are meaningful relationships mutually That is, it was found out that elements of usage gratification of Twitter provide impacts on dependence of Twitter and problematic uses of Twitter.