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Ophthalmology in the time of COVID-19: experience from Hong Kong Eye Hospital

International Journal of Ophthalmology(English edition) 2020年第6期13卷 851-859页

作者： Stephanie S.L.Cheung Cherie Y.K.wong Jason C.K.Chan Carmen K.M.Chan N.M.lam Hunter K.L.yuen Victoria W.Y.wong Chi Wai Tsang Clement C.Y.Tham Department of Ophthalmology and Visual Sciences the Chinese University of Hong KongHong Kong SARChina Hong Kong Eye Hospital Hong Kong SARChina

AIM:To review international guidelines and to share our infection control experience during the coronavirus disease 2019(COVID-19)pandemic at a tertiary eye centre in Hong ***:Infection control guidelines and recommendations from international ophthalmological bodies are reviewed and *** measures at our hospital were drawn up as per international and local health authorities’guidelines and implemented with the collaboration of doctors,nurses and administrative ***:The aims of our infection control measures are to 1)minimize cross-infection within the hospital;2)protect and support hospital staff;3)ensure environmental *** minimize the risk of cross-infection,outpatient attendance and elective surgery have been reduced by 40%,and general anesthesia procedures were reduced by 90%.Patients entering the hospital are screened for fever,travel history,contact and cluster history,and COVID-19 related *** protect and support hospital staff,we ensure provision of adequate personal protective equipment(PPE)and provide clear guidelines on the level of PPE needed,depending on the clinical *** protective measures include provision of work uniforms,easy access to alcohol-based hand rub,opening new lunch areas,implementation of self-monitoring and self-reporting systems,and communication via online education and ***,environmental control is achieved by ensuring regular disinfection of the hospital premise,enhancing ventilation,and usage of disposable ophthalmic ***:Our multi-pronged approach to infection control is,so far,successful in minimizing infection risks,while allowing the maintenance of essential ophthalmic services.

关键词： COVID-19 coronavirus SARS-CoV-2 ophthalmology infection control Hong Kong

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Effect of Rorrico, extracted from group of Chinese medicines, on influenza A and H1N1 infections

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Journal of Traditional Chinese Medicine 2016年第6期36卷 701-705页

作者： Shiu Hon Chui Yee Hou wong Ming Yiu Fong Yee Man Chiu Christopher Wai Kei lam State Key Laboratory of Quality Research in Chinese Medicine Macao Institute for Applied Research in Medicine and Health Macao University of Science and Technology Clinical Laboratory Diagnostix Medical Center Central

OBJECTIVE: To investigate the therapeutic and preventive effects of Rorrico on influenza, especially influenza A viral infection, including swine flu(H1N1)in ***: Eighty-nine subjects were recruited in Hong Kong and Macao, and divided into treatment group(TG) and prevention group(PG) based on their influenza A and swine flu symptoms. All subjects were prescribed Rorrico or placebo, and monitored by a Chinese medicine practitioner. Blood samples were collected before and after 7-day Rorrico or placebo treatment for laboratory ***: After treatment, there were some full recoveries and obvious relief of onset symptoms in the TG. Blood test results showed that Rorrico produced(a) no adverse effects on subjects' renal andliver functions, muscle enzyme and hematological status,(b) no up-regulation of pro-inflammatory cytokines tumour necrosis factor-a and interleukin-18 in both TG and PG,(c) mild yet statistically significant elevation of plasma mannose-binding lectin(MBL) in ***: Rorrico has no up-regulating effect on the participants' immune response, or, equally likely, the immuno-modulatory effects of Rorrico do not non-specifically or unnecessarily promote inflammation when not required. It is possible that oral administration of Rorrico can promote hepatic synthesis of MBL in healthy PG subjects, thereby conferring increased protection against infection.

关键词： Rorrico Influenza A Virus H1N1 Subtype Tumor necrosis factor-alpha Interleukin-18

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A cyanostilbene-based molecule with aggregation-induced emission properties: amplified spontaneous emission, protonation effect and electroluminescence

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Science China Chemistry 2019年第2期62卷 212-219页

作者： Yujie Dong Suqian Ma Xiaoyu Zhang Jingyu Qian Nianyong Zhu Bin Xu Cheuk-lam Ho Wenjing Tian Wai-Yeung wong Institute of Molecular Functional Materials and Department of Chemistry Hong Kong Baptist University State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology College of Chemical Engineering Zhejiang University of Technology State Key Laboratory of Supramolecular Structure and Materials Jilin University Department of Applied Biology & Chemical Technology The Hong Kong Polytechnic University

A terpyridine-substituted cyanostilbene derivative(Z)-2-(4′-([2,2′:6′,2″-terpyridin]-4′-yl)-[1,1′-biphenyl]-4-yl)-3-phenylacrylonitrile(CNSTPy) was synthesized and characterized. The compound exhibits remarkable aggregation-induced emission phenomenon and its single crystal shows a blue emission with fluorescent efficiency as high as 45%. Based on its aggregation state behavior, multiple applications towards exploring its lasing, fluorescence switching and electroluminescence properties were realized. Amplified spontaneous emission(ASE) was observed from the crystal and verified by the variable pump strip method, with a threshold value of ～1.5 m J cm^(-2). The protonation/deprotonation processes accompanied by the formation of different molecular aggregation structure result in the distinct blue and yellow emissions. Additionally, the molecule also shows a moderate electroluminescence performance.

关键词： aggregation-induced emission cyanostilbene amplified spontaneous emission protonation effect

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Curriculum Adaptation in Special Schools for Students with Intellectual Disabilities(SID):A Case Study of Project Learning in One SID School in Hong Kong

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Frontiers of Education in China 2014年第2期9卷 250-273页

作者： ZHANG Jia-Wei wong lam CHAN Tak-Hang CHIU Chi-Shing Hong Kong Institute of Educational Research The Chinese University of Hong KongHong KongChina

Using a qualitative case study approach,the authors analyzed the curriculum adaptation process for one project learning activity in School K,which is a SID school in the context of school-university *** sources of data were collected for triangulation,including interviews,documents and *** adaptation strategies in this study were analyzed from five perspectives:instructional goals,instructional content,instructional strategies,instructional settings,and student behavioral *** was found that curriculum adaptation efforts could help students with ID develop potential at their own level through project learning activates and teachers could also gain professional development during the university-school collaboration *** for future studies,enlarging the sample size,involving teachers’past orientations and motivations in the project learning process,and collecting quantitative data could all be taken into account.

关键词： special education students with intellectual disabilities(SID) curriculum adaptation project learning

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Life-cycle assessment of batteries for peak demand reduction

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Journal of Electronic Science and Technology 2023年第4期21卷 20-34页

作者： Dylon Hao Cheng lam Yun Seng Lim Jianhui wong Siti Nadiah M.Sapihie Department of Electrical and Electronic Engineering Universiti Tunku Abdul RahmanKajang43000Malaysia Group Research&Technology Division PETRONASBandar Baru Bangi43650Malaysia

At present,a life-cycle assessment of energy storage systems(ESSs)is not widely available in the *** an assessment is increasingly vital nowadays as ESS is recognized as one of the important equipment in power systems to reduce peak demands for deferring or avoiding augmentation in the network and power *** the battery cost is still very high at present,a comprehensive assessment is necessary to determine the optimum ESS capacity so that the maximum financial gain is achievable at the end of the batteries’***,an effective life-cycle assessment is proposed in this paper to show how the optimum ESS capacity can be determined such that the maximum net financial gain is achievable at the end of the batteries’lifespan when ESS is used to perform peak demand reductions for the customer or utility *** findings reveal the positive financial viability of ESS on the power grid,otherwise the projection of the financial viability is often seemingly poor due to the high battery cost with a short battery *** improved battery degradation model is used in this assessment,which can simulate the battery degradation accurately in a situation whereby the charging current,discharging current,and temperature of the batteries are intermittent on a site during peak demand *** assessment is crucial to determine the maximum financial benefits brought by ESS.

关键词： Degradation estimation Maximum net savings Peak demand reduction State of health(SOH)estimation

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Late retroperitoneal recurrence of hepatocellular carcinoma 12 years after initial diagnosis

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World Journal of Gastroenterology 2010年第17期16卷 2187-2189页

作者： Tiffany Cho-lam wong Ka-Fai To Simon See-Ming Hou Sidney Kam-Hung Yip Chi-Fai Ng Department of Surgery Prince of Wales HospitalThe Chinese University of Hong Kong Department of Anatomical and Cellular Pathology The Chinese University of Hong Kong

Hepatocellular carcinoma (HCC) is an aggressive tumor with poor long-term ***,we present an unusual patient with a solitary recurrence of HCC in the right kidney 12 years after the initial *** illustrates the importan... 详细信息

关键词： Hepatocellular carcinoma Late recurrence Metastasis Retroperitoneal

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Changes in segment coordination variability and the impacts of the lower limb across running mileages in half marathons:Implications for running injuries

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Journal of Sport and Health Science 2022年第1期11卷 67-74页

作者： Tony Lin-Wei Chen Duo Wai-Chi wong Yan Wang Qitao Tan Wing-Kai lam Ming Zhang Department of Biomedical Engineering Faculty of EngineeringHong Kong Polytechnic UniversityHong Kong SAR 999077China Li Ning Sports Science Research Center Li Ning(China)Sports Goods Co.LtdBeijing 101111China Hong Kong Polytechnic University Shenzhen Research Institute Shenzhen 518057China Department of Kinesiology Shenyang Sports InstituteShenyang 110102China

Background:Segment coordination variability(CV)is a movement pattern associated with running-related *** can also be adversely affected by a prolonged ***,research on this topic is currently *** purpose of this study was to investigate the effects of a prolonged run on segment CV and vertical loading rates during a treadmill half ***:Fifteen healthy runners ran a half marathon on an instrumental treadmill in a biomechanical *** kinematic and kinetic data were collected every 2 km(from 2 km until 20 km),and the data were processed by musculoskeletal *** CVs were computed from the angle-angle plots of selected pelvis-thigh,thigh-shank,and shank-rearfoot couplings using a modified vector coding *** loading rate of vertical ground reaction force was also calculated.A one-way MANOVA with repeated measures was performed on each of the outcome variables to examine the main effect of running ***:Significant effects of running mileage were found on segment CVs(p≤0.010)but not on loading rate(p=0.881).Notably,during the early stance phase,the CV of pelvis frontal thigh frontal was significantly increased at 20 km compared with the CV at 8 km(g=0.59,p=0.022).The CV of shank transverse *** frontal decreased from 2 km to 8 km(g=0.30,p=0.020)but then significantly increased at both 18 km(g=0.05,p<0.001)and 20 km(g=0.36,p<0.001).Conclusion:At the early stance,runners maintained stable CVs on the sagittal plane,which could explain the unchanged loading rate throughout the half ***,increased CVs on the frontal/transverse plane may be an early sign of fatigue and indicative of possible injury *** studies are necessary for conclusive statements in this regard.

关键词： Coupling angle Endurance running Motion capture analysis Musculoskeletal modeling Vector coding technique

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Novel N-heteroaromatic dyes for textile substrates

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Chinese Chemical Letters 2014年第8期25卷 1165-1168页

作者： Kim-Hung lam Sarah Sze-Wah Ho Pik-Ling lam Johnny Cheuk-On Tang Zhao-Xiang Bian Albert Sun-Chi Chan Hua Li Wai-Yeung wong Chung-Hin Chui Department of Applied Biology and Chemical Technology Institute of Textile and Clothing The Hong Kong Polytechnic University Clinical Division School of Chinese Medicine Hong Kong Baptist University Institute of Molecular Functional Materials Department of Chemistry and Institute of Advanced Materials Hong Kong Baptist University College of Life and Environmental Sciences Minzu University of China HKBU Institute of Research and Continuing Education Shenzhen Virtual University Park

This study reports the synthesis and characterization of quinoline derivatives. The synthesized quinoline compounds were applied to the dyeing treatment of acrylic fabrics. The color fastness to washing and light of quinoline compound-dyed fabrics was examined. Human skin HaCaT cell line was also used for the skin cytotoxicity evaluation of the quinoline compound-dyed acrylic fabrics.

关键词： Acrylic fabrics Fluorescent Quinoline dyes Skin cytotoxicity

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NOD-like receptors mediated activation of eosinophils interacting with bronchial epithelial cells： a link between innate immunity and allergic asthma

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Cellular & Molecular Immunology 2013年第4期10卷 317-329页

作者： Churl Kwok wong Shuiqing Hu Karen Ming-lam Leungt Jie Dong Lan He Yi Jun Chu Ida Miu-Ting Chu Huai-Na Qiu Kelly Yan-Ping Liu ChristopherWai-Kei lam Department of Chemical Pathology The Chinese University of Hong Kong Prince of Wales Hospital Hong Kong China Department of Medicine and Therapeutics The Chinese University of Hong Kong Prince of Wales Hospital Hong Kong China Macao Institute for Applied Research in Medicine and Health Macao University of Science and Technology Taipa Macao China

Key intracytosolic pattern recognition receptors of innate immunity against bacterial infections are nucleotide-binding oligomerization domain （NOD）-Iike receptors （NLRs）. We elucidated the NOD1 and NOD2-mediated activation of human eosinophils, the principal effector cells for allergic inflammation, upon interacting with human bronchial epithelial BEAS-2B cells in allergic asthma. Eosinophils constitutively expressed NOD1,2 but exhibited nonsignificant responses to release chemokines upon the stimulation by NOD1 ligand 7-D-glutamyl-meso-diaminopimelic acid （iE-DAP） and NOD2 ligand muramyl dipeptide （MDP）. However, iE-DAP and MDP could significantly upregulate cell surface expression of CD18 and intercellular adhesion molecule （ICAM）-I on eosinophils and ICAM-1 on BEAS-2B cells, as well as induce chemokines CCL2 and CXCL8 release in the coculture system （all P〈0.05）. Both eosinophils and BEAS-2B cells were the main source for CXCL8 and CCL2 release in the coculture system upon iE-DAP or MDP stimulation. Direct interaction between eosinophils and BEAS-2B cells is responsible for CCL2 release, and soluble mediators are implicated in CXCL8 release. ERK and NF-KB play regulatory roles for the expression of adhesion molecules and chemokines in coculture. Treatment with NOD1,2 ligand could induce the subepithelial fibrosis and significantly enhance the serum concentration of total IgE, chemokine CCL5 for eosinophils and T helper type 2 （Th2） cells and asthma Th2 cytokine IL-13 in bronchoalveolar lavage fluid of ovalbumin-sensitized allergic asthmatic mice （all P〈0.05）. This study provides further evidence of bacterial infection-mediated activation of NOD1,2 in triggering allergic asthma via the activation of eosinophils interacting with bronchial epithelial cells at inflammatory airway.

关键词： allergy bronchial epithelial cells chemokines eosinophils signal transduction

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Estimating liver weight of adults by body weight and gender

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World Journal of Gastroenterology 2006年第14期12卷 2217-2222页

作者： See Ching Chan Chi Leung Liu Chung Mau Lo Banny K lam Evelyn W Lee Yik wong Sheung Tat Fan Centre for the Study of Liver Disease Department of Surgery The University of Hong Kong Pokfulam Hong Kong China Centre for the Study of Liver Disease Department of Radiology The University of Hong Kong Pokfulam Hong Kong China

AIM： To estimate the standard liver weight for assessing adequacies of graft size in live donor liver transplantation and remnant liver in major hepatectomy for cancer. METHODS： In this study, anthropometric data of body weight and body height were tested for a correlation with liver weight in 159 live liver donors who underwent donor right hepatectomy including the middle hepatic vein. Liver weights were calculated from the right lobe graft weight obtained at the back table, divided by the proportion of the right lobe on the computed tomography. RESULTS： The subjects, all Chinese, had a mean age of 35.8 ± 10.5 years, and a female to male ratio of 118：41. The mean volume of the right lobe was 710.14 ±131.46 mL and occupied 64.55%±4.47% of the whole liver on computed tomography. Right lobe weighed 598.90±117.39 g and the estimated liver weight was 927.54 ± 168.78 g. When body weight and body height were subjected to multiple stepwise linear regression analysis, body height was found to be insignificant. Females of the same body weight had a slightly lower liver weight. A formula based on body weight and gender was derived： Estimated standard liver weight （g）=218＋BW （kg）× 12.3＋gender×51 （R^2 = 0.48）（female=0, male= 1）. Based on the anthropometric data of these 159 subjects, liver weights were calculated using previously published formulae derived from studies on Caucasian, .lapanese, Korean, and Chinese. All formulae overestimated liver weights compared to this formula. The Japanese formula overestimated the estimated standard liver weight （ESLW） for adults less than 60 ***： A formula applicable to Chinese males and females is available. A formula for individual races appears necessary.

关键词： Estimated standard liver weight Liver tranplantation

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