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Contribution to the knowledge of Chinese PhasmatodeaⅪ:New taxa and new nomenclature of Medaurini(Phasmatidae:Clitumninae)from China

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Zoological Systematics 2021年第3期46卷 234-239页

作者： wai-chun George Ho Hong Kong Entomological Society P.O.Box No.73749Kowloon Central Post OfficeHong KongChina

This paper describes two new genera and two new species,Megacnipsomorpha gen nov.,Parapachymorpha granulata ***.,Parapachymorpha parvicorne ***.,and Spinoparapachymorpha gen nov.,from Medaurini of China.

关键词： Stick insects new genus new species new combination China

Contribution to the knowledge of Chinese PhasmatodeaⅨ:First report of Xeroderinae(Phasmatodea:Phasmatidae)from China

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Zoological Systematics 2021年第2期46卷 187-190页

作者： wai-chun George Ho Hong Kong Entomological Society P.O.Box No.73749Kowloon Central Post OfficeHong KongChina

This paper reports the subfamily Xeroderinae Günther,1953 and the genus Xenophasmina Uvarov,1940 for the first time from China;describes a new genus and a new species,Sinoxenophasmina abbreviatum gen.&***.,from Yunnan,China;suggests a new combination and a new synonym,***(Redtenbacher,1908)***.(=*** Redtenbacher,1908 ***.);and reports two new record species,***(Redtenbacher,1908)*** ***(Redtenbacher,1908),from China.

关键词： Stick insects new genus new species new combination new synonym China

Single incision laparoscopic right hemicolectomy： different approaches

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Chinese Medical Journal 2013年第2期126卷 238-241页

作者： WONG Tak-man DAY Weida KWOK Shu-yan LAU Ying-yu Patrick yip wai-chun andrew Department of Surgery Kwong Wah Hospital Hong Kong China

Background Single incision laparoscopic colectomy has been performed in recent years, and has been shown to be feasible and safe. This study was to assess the feasibility of single incision laparoscopic right hemicolectomy and to compare the differences in different approaches. Methods This retrospective study included eighteen patients with carcinoma of caecum and ascending colon, undergoing single incision laparoscopic right hemicolectomy. This study also compared single incision laparoscopic right hemicolectomy using different approaches：（1） single incision multiport, （2） single access port and （3） glove port. Results There was no statistical difference in surgical outcomes. Concerning the surgeon＇s satisfaction toward three methods, overcrowding and durability were similar but the single incision multiport was associated with the highest gas-leak and the ＂glove＂ port was associated with poor durability. However, the method of single incision multiport has the lowest average cost of the special trocar or port in each operation. The operative time and blood loss of the operations in this study were comparable to previous publications. Conclusion There was no significant difference between different approaches of single incision laparoscopic right hemicolectomy for colonic cancer in right side colon.

关键词： colonic neoplasms, colectomy instrumentation, laparoscopy methods equipment design

Comparison of vegetable oils on the uptake of lutein and zeaxanthin by ARPE-19 cells

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International Journal of Ophthalmology(English edition) 2023年第1期16卷 40-46页

作者： Jeonghun Baek chun wai Mai Wei Meng Lim Lai chun Wong School of Medicine International Medical UniversityKuala Lumpur 57000Malaysia Department of Pharmaceutical Chemistry School of PharmacyInternational Medical UniversityKuala Lumpur 57000Malaysia Department of Pharmaceutical Technology School of PharmacyInternational Medical UniversityKuala Lumpur 57000Malaysia

AIM:To compare the effect of vegetable oils on the uptake of lutein and zeaxanthin by adult retinal pigment epithelial(ARPE)-19 cells in ***:ARPE-19 cells were cultured in Dulbecco’s Modified Eagle Medium-F-12 supplemented with 10%foetal bovine serum and 1%penicillin–streptomycin in a humidified 5%CO_(2) incubator maintained at 37℃.Cells were treated with 247μmol/L lutein,49μmol/L zeaxanthin and 1%(v/v)of either coconut oil,corn oil,peanut oil,olive oil,sunflower oil,soybean oil,castor oil,or linseed oil for *** and zeaxanthin concentration in the cells were quantified by high performance liquid ***:Among the oils tested,the highest lutein and zeaxanthin uptake was observed with coconut oil while the lowest was observed with linseed ***:ARPE-19 uptake of lutein and zeaxanthin are found to be dependent on the type of oils.

关键词： lutein zeaxanthin adult retinal pigment epithelial-19 cells vegetable oil

Photoelectrochemical degradation of Methylene Blue with β-PbO_2 electrodes driven by visible light irradiation

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Journal of Environmental Sciences 2011年第6期23卷 998-1003页

作者： Guoting Li HoYin yip Kin Hang Wong chun Hu Jiuhui Qu Po Keung Wong Department of Environmental and Municipal Engineering North China University of Water Conservancy and Electric Power Zhengzhou 450011 China School of Life Sciences The Chinese University of Hong Kong Shatin N.T. Hong Kong SAR China State Key Laboratory of Environmental Aquatic Chemistry Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beifing 100085 China

β-PbO2 electrodes were prepared by electro-deposition and characterized by scanning electron microscopy,X-ray diffraction,X-ray photoelectron spectroscopy,and linear sweep *** confirmed pure β-PbO2 crystals were on the electrode and it had a high oxygen evolution *** photoactivity and photoelectrochemical（PEC） properties of the β-PbO2 electrode were investigated under visible light irradiation（λ 〉 420 nm） for the decolorization of Methylene *** first-order kinetics parameter（Kapp） for dye decolorization using the β-PbO2 electrode achieved 6.71×10-4 min-1 under visible light irradiation,which indicated its excellent visible light-induced *** Kapp of the PEC process was as much as 1.41×10-3 min-1 and was 1.71 times that of visible light irradiation or electrolysis even in the presence of the β-PbO2 electrode.A significant synergetic effect was observed in the PEC *** also employed TiO2 modified β-PbO2 electrodes in this test,which revealed that the TiO2 immobilized on the β-PbO2 electrode inhibited the visible light-induced PEC efficiency despite the amount of TiO2 used for electrode *** β-PbO2 electrode was also superior to the dimensionally stable anode（Ti/Ru0.3Ti0.7O2） in visible light-induced photoactivity and PEC efficiency.

关键词： photocatalysis photoelectrochemical process visible light β-PbO2 electrode

Virtual reality based multiple life skill training for intellectual disability:A multicenter randomized controlled trial

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Engineered Regeneration 2022年第2期3卷 121-130页

作者： James chung-wai Cheung Ming Ni Andy Yiu-Chau Tam Tim Tin-chun Chan Alyssa Ka-Yan Cheung Ocean Yu-Hong Tsang Chi-Bun yip Wing-Kai Lam Duo wai-Chi Wong Department of Biomedical Engineering Faculty of EngineeringThe Hong Kong Polytechnic UniversityHong Kong 999077China Research Institute for Smart Ageing The Hong Kong Polytechnic UniversityHong Kong 999077China Jockey Club Smart Ageing Hub Department of Biomedical EngineeringFaculty of EngineeringThe Hong Kong Polytechnic UniversityHong Kong 999077China Department of Orthopaedics Pudong New Area People’s Hospital Affiliated to Shanghai Jiaotong UniversityShanghai 201299China Social Service Department Yan Chai HospitalHong Kong 999077China C2 Innovations and Research Limited Hong Kong 999077China Department of Kinesiology Shenyang Sport UniversityShenyang 110102China Sports Information and External Affairs Centre Hong Kong Sports InstituteHong Kong 999077China

Life skill-based training is essential for intellectual disabled individuals to regain autonomy and social *** reality(VR)could deliver a nascent application that is more engaging and *** objective of this study was to evaluate the training effects of the VR-based multiple life skill training program on life skill perfor-mance,self-efficacy,memory,cognitive and behavioral functions via a multicenter randomized controlled trial.A total of 145 intellectual disabled participants were recruited for a randomized controlled trial with three in-tervention arms:VR(n=42);traditional(n=53);and control(n=50).The life skill tasks for the interventions included 1)grocery shopping,2)cooking,and 3)kitchen *** measures were performance scores for the three tasks,self-efficacy scale,digit span score,and Frontal Assessment Battery score,graded by blinded ***-after effects of each group were evaluated using separated Wilcoxon Signed-rank *** sig-nificantly improved cooking,cleaning performance,and memory span,while traditional training significantly improved shopping,cooking,and cleaning *** generalized estimating equation evaluated effects between groups adjusted for age,gender and intelligence quotient(IQ).VR had significantly larger improvement effects in cooking and cleaning than the control group and memory span compared to traditional training and controls *** appeared to be a significant confounder on the training *** work may consider developing artificial intelligence to customize programs depending on IQ level.

关键词： Mental retardation Intellectual development X-reality Immersive rehabilitation Metaverse

Molecular Evidence for the Hybrid Origin of Bauhinia blakeana(Caesalpinioideae)

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Journal of Integrative Plant Biology 2008年第1期50卷 111-118页

作者： chun Yin Mak Ka Shing Cheung Pui Ying yip Hoi Shan Kwan Department of Biology The Chinese University of Hong KongShatinHong KongChina

Bauhinia blakeana Dunn is the Hong Kong Special Administrative Region emblem and a popular horticultural species in many Asian countries. It was first described as a new species from Hong Kong almost a century ago. This plant is sterile and has long been considered a hybrid, possibly from two related species, B. purpurea and B. variegata. However, not much evidence based on molecular methods was available to support this hypothesis. In this study, sequences of internal transcribed spacer I （ITS1）, rbcL and atpB-rbcL intergenic spacer for five Bauhinia species and two varieties of one of the species were determined and compared. There were two types of ITS1 sequences in B. blakeana, one indistinguishable from that of B. purpurea and the other one identical to that of B. variegata. This confirmed that B. blakeana was a hybrid of these two species. Chloroplast atpB-rbcL intergenic spacer sequence of B. blakeana was identical to that of B. purpurea, indicating that B. purpurea was the female parent. The hybridization event seemed to occur only recently and was a rare incident. Its occurrence was likely facilitated by interspecific pollen competition. It appeared that human efforts played a crucial role in the preservation and ubiquity of B. blakeana.

关键词： atpB-rbcL intergenic spacer Bauhinia internal transcribed spacer 1 interspecific hybrid interspecific pollen competition.

Efficacy and safety of on demand tadalafil in the treatment of East and Southeast Asian men with erectile dysfunction:a randomized double-blind,parallel,placebo-controlled clinical study

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Asian Journal of Andrology 2006年第6期8卷 685-692页

作者： wai chun andrew yip Han-Sun Chiang Jesus Benjamin Mendoza Hui-Meng Tan Man-Kay Li Wei Christine Wang Vladimir Kopernicky Department of Surgery Kwong Wah HospitalHong KongChina College of Medicine Fu Jen Catholic UniversityTaipei 24205TaiwanChina Department of Urology National Kidney and Transplant InstituteQuezon City 1100the Philippines Department of Urology Subang Jaya Medical CentreSelangor Darul Ehsan 47500Malaysia Department of Urology National University Hospital119074Singapore Lilly Research Laboratories Eli Lilly and CompanyIndianapolisIndiana 46285USA Lilly Area Medical Center Vienna 1030Austria

Aim： To assess the efficacy and safety of tadalafil in comparison to a placebo, when taken on demand for 12 weeks by East/Southeast Asian men with erectile dysfunction （ED）, Methods： This multicenter, randomized, double-blind, parallel group, placebo-controlled study was conducted at 17 centers across East and Southeast Asia between August 2002 and February 2003. Men more than 18 years of age with mild to severe ED of various etiologies were randomized to receive a placebo or 20 mg of tadalafil taken as needed （maximum once daily）. Efficacy assessments included the International Index of Erectile Function, the Sexual Encounter Profile diary and Global Assessment Questions. Results： Tadalafil significantly improved erectile function as compared to the placebo （P 〈 0.001）. At the endpoint, the patients receiving 20 mg of tadalafil reported a greater mean per patient percentage of successful intercourse attempts （Sexual Encounter Profile question 3： 70.9% compared to 33.5% in the placebo） and a greater proportion of improved erections （Global Assessment Question： 86.2% compared to 30.1%）. Most （≥3%） treatment emergent adverse events were mild or moderate. The most common treatment emergent adverse events were headache, back pain, dizziness and dyspepsia. Conclusion： Tadalafil was an effective and well-tolerated treatment for ED in East and Southeast Asian men.

关键词： tadalafil phosphodiesterase type 5 inhibitor erectile dysfunction efficacy safety Asian

Three new species of genus Pylaemenes St?l(Phasmatodea: Heteropterygidae: Dataminae) from Vietnam

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Zoological Systematics 2018年第3期43卷 276-282页

作者： wai-chun George Ho Hong Kong Entomological Society Kowloon Central Post Office

This study provides descriptions of three new species of the genus Pylaemenes St？l, 1875 from Vietnam, namely P. abramovi sp. *** P. konchurangensis sp. nov. and *** sp. nov.

关键词： Stick insects Datamini Vietnam new species key