Design and analysis of switched-capacitor-based step-up resonant converters

Author name used in this publication: K. K. LawAuthor name used in this publication: K. W. E. ChengAuthor name used in this publication: Y. P. Benny YeungPower Electronics Research Centre, Department of Electrical Engineering2004-2005 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

Exploring the power conditioning system for fuel cell

Author name used in this publication: Cheng K. W. E.Author name used in this publication: Sutanto D.Author name used in this publication: Law K. K.Power Electronics Research Centre, Department of Electrical EngineeringRefereed conference paper2000-2001 > Academic research: refereed > Refereed conference paperVersion of RecordPublishe

Comparison of effects of sleeve gastrectomy, duodenal-jejunal bypass and ileal transposition for type II diabetes

Oral Presentations: OS9 - Surgery for Diabetes: no. OS9.02INTRODUCTION: Sleeve gastrectomy (SG), duodenal jejuna bypass (DJB) and ileal transposition (IT) have been reported to be effective for the treatment of T2DM. OBJECTIVES: It is unknown which procedure has a stronger anti-diabetic effect. The purpose of this study was to compare the effectiveness of these novel procedures METHODS: SG, DJB, IT and sham operation of each procedure were performed in 10-12 weeks old Goto-Kakizaki rats, a spontaneous non-obese model of T2DM. The glucose homeostasis effect was evaluated by measuring fasting glucose (FBG) and glycosylated haemoglobin (HbA1c). Gut hormonal profiles and lipid absorption were also examined. Rats were observed for 1 year. RESULTS: All three procedures had significant lower FBG when compared to the respective sham groups. DJB and IT had lower FBG than SG (SG vs DJB, p=0.023; SG vs IT, p=0.009) whereas DJB and IT had a similar FBG level, p=0.678. For HbA1c, all procedures had lower levels than the respective sham groups, p<0.001. The HbA1c of SG rebounded on 8th week whereas HbA1c of DJB and IT remained at low level. SG had a significant higher HbA1c level than DJB and IT, p<0.001 while DJB and IT had a similar level, p=0.685. GLP-1 and PYY were raised in DJB and IT whereas GIP level increased in DJB. All three procedures have different lipid absorption profile. CONCLUSION: SG, DJB and IT all had anti-diabetic effect. DJB and IT had more potent anti-diabetic effect than SG. Each procedure has different effects on metabolic diseases and their clinic application deserve individual consideration.published_or_final_versio

Unified analysis of switched-capacitor resonant converters

Author name used in this publication: Y. P. Benny YeungAuthor name used in this publication: K. W. E. ChengAuthor name used in this publication: S. L. HoAuthor name used in this publication: K. K. Law2004-2005 > Academic research: refereed > Publication in refereed journalVersion of RecordPublishe

Development of multiple output operation based on single stage switched-capacitor resonant converters

Author name used in this publication: K. W. E. ChengAuthor name used in this publication: K. K. LawAuthor name used in this publication: Y. P. B. YeungAuthor name used in this publication: D. SutantoAuthor name used in this publication: D. K. W. ChengPower Electronics Research Centre, Department of Electrical EngineeringRefereed conference paper2001-2002 > Academic research: refereed > Refereed conference paperVersion of RecordPublishe

Yttrium-90 radioembolization for advanced inoperable hepatocellular carcinoma

published_or_final_versio

Suicide in Hong Kong: A case-control psychological autopsy study

Background. The relative contribution of psychosocial and clinical risk factors to suicide among Chinese populations is an important issue. In Hong Kong, this issue requires vigorous examination in light of a 50% increase in suicide rate between 1997 and 2003. Method. Using a case-control psychological autopsy method, 150 suicide deceased were compared with 150 living controls matched by age and gender. Semi-structured interviews were conducted with the next-of-kin of the subjects. Data were collected on a wide range of potential risk and protective factors, including demographic, life event, clinical and psychological variables. The relative contribution of these factors towards suicide was examined in a multiple logistic regression model. Results. Six factors were found to significantly and independently contribute to suicide: unemployment, indebtedness, being single, social support, psychiatric illness, and history of past attempts. Conclusions. Both psychosocial and clinical factors are important in suicides in Hong Kong. They seem to have mediated suicide risk independently. In addition, socio-economic adversities seem to have played a relatively important role in the increasing suicide rate in Hong Kong. © 2006 Cambridge University Press.published_or_final_versio

Primary omental fibromatosis presenting as an incarcerated inguinal hernia: Case report from a single institution over 20 years

This paper has been presented in 12th International Congress of Asia-Pacific Hernia Society in Tokyo, Japan during period of 27th–28th October, 2016

Dietary soy and meat proteins induce distinct physiological and gene expression changes in rats

This study reports on a comprehensive comparison of the effects of soy and meat proteins given at the recommended level on physiological markers of metabolic syndrome and the hepatic transcriptome. Male rats were fed semi-synthetic diets for 1 wk that differed only regarding protein source, with casein serving as reference. Body weight gain and adipose tissue mass were significantly reduced by soy but not meat proteins. The insulin resistance index was improved by soy, and to a lesser extent by meat proteins. Liver triacylglycerol contents were reduced by both protein sources, which coincided with increased plasma triacylglycerol concentrations. Both soy and meat proteins changed plasma amino acid patterns. The expression of 1571 and 1369 genes were altered by soy and meat proteins respectively. Functional classification revealed that lipid, energy and amino acid metabolic pathways, as well as insulin signaling pathways were regulated differently by soy and meat proteins. Several transcriptional regulators, including NFE2L2, ATF4, Srebf1 and Rictor were identified as potential key upstream regulators. These results suggest that soy and meat proteins induce distinct physiological and gene expression responses in rats and provide novel evidence and suggestions for the health effects of different protein sources in human diets