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High-resolution multi-scale air pollution system:Evaluation of modelling performance and emission control strategies

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Journal of Environmental Sciences 2024年第3期137卷 65-81页

作者： Diogo Lopes Joana Ferreira Sandra Rafael ka.In Hoi Xin Li Yuan Liu ka.Veng Yuen ka. meng mok Ana Isabel Miranda Department of Environment and Planning&CESAM University of AveiroAveiroPortugal Department of Civil&Environmental Engineering Faculty of Science and TechnologyUniversity of MacaoMacao SARChina

A high percentage of the world's population lives in areas where air pollutant concentrations exceed the World Health Organization *** work aims to develop and test,a high-resolution multi-scale air pollution modelling system by integrating a set of adequate *** system is able to provide detailed air pollutant concentrations in urban areas and support air quality management strategies through a better identification of different atmospheric *** also allows furthering the design and assessment of air pollution control measures for a specific *** evaluate its performance and suitability,the system was applied to the Macao Special Administrative Region(SAR),China,one of the most densely populated areas on earth,during a winter period when this area is affected by high levels of Particulate Matter(PM).Although the developed system tends to underestimate the PM concentrations,it revealed a good performance in reproducing the temporal and spatial air pollution *** exceedances of the Chinese air quality standards were calculated and high population exposure to PM pollution was *** tested urban atmospheric emission reduction scenarios have shown air quality improvements,indicating that emission reduction measures at urban level should focus on the domestic ***,it is crucial to implement joint pollution prevention strategies with neighbouring regions to improve the air quality in Macao *** approach developed in this work can support policymakers in defining new strategies to reduce atmospheric pollution in urban areas.

关键词： Urban areas High-resolution emission inventory Particulate matter Population exposure

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亚洲国家的跨国高等教育:质量保障和学生学习体验

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世界教育信息 2024年第1期37卷 3-11页

作者：莫家豪张优良香港岭南大学中国香港999077 北京工业大学文法学部高等教育研究院北京工业大学首都工程教育发展研究基地北京100124

亚洲国家积极引进世界其他地区发达国家的高等教育资源,建立跨国高等教育机构和项目,并不断完善跨国高等教育质量保障机构、制度和体系。跨国高等教育的学生普遍满意其学习经历,认为教育效果符合其预期。新时期,亚洲国家可进一步发挥跨... 详细信息

亚洲国家积极引进世界其他地区发达国家的高等教育资源,建立跨国高等教育机构和项目,并不断完善跨国高等教育质量保障机构、制度和体系。跨国高等教育的学生普遍满意其学习经历,认为教育效果符合其预期。新时期,亚洲国家可进一步发挥跨国高等教育在连接亚洲以及世界其他地区发达国家高等教育的有益作用;亚洲国家构建跨国高等教育保障体系,需要来源国高校与本土高校之间的有效沟通,因地制宜、科学地设计方案;需关注学生的学习体验,培养学生应对未来挑战的能力。

关键词：跨国高等教育质量保障全球胜任力

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Multi-omics analysis of attenuated variant reveals potential evaluation marker of host damaging for SARS-CoV-2 variants

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Science China(Life Sciences) 2024年第1期67卷 83-95页

作者： Guangshan Xie Lin Zhu Siwen Liu Cun Li Xin Diao Yanhao Zhang Xiuli Su Yuanyuan Song Guodong Cao Li Zhong Pui Wang Xiaojuan Liu Bobo Wing-Yee mok Shusheng Zhang Dong-Yan Jin Jie Zhou Honglin Chen Zongwei Cai State Key Laboratory of Environmental and Biological Analysis Hong Kong Baptist UniversityHong Kong SARChina State Key Laboratory for Emerging Infectious Diseases and Department of MicrobiologyLi Ka Shing Faculty of MedicineThe University of Hong KongHong Kong SARChina College of Chemistry Zhengzhou UniversityZhengzhou 450001China School of Biomedical Sciences The University of Hong KongHong Kong SARChina HKBU Shenzhen Institute of Research and Continuing Education Shenzhen 518000China

SARS-CoV-2 continues to threaten human society by generating novel variants via mutation and *** high number of mutations that appeared in emerging variants not only enhanced their immune-escaping ability but also made it difficult to predict the pathogenicity and virulence based on viral nucleotide *** markers for evaluating the pathogenicity of new variants are therefore *** comparing host responses to wild-type and variants with attenuated pathogenicity at proteome and metabolome levels,six key molecules on the polyamine biosynthesis pathway including putrescine,SAM,dc-SAM,ODC1,SAMS,and SAMDC were found to be differentially upregulated and associated with pathogenicity of *** validate our discovery,human airway organoids were subsequently used which recapitulates SARS-CoV-2 replication in the airway epithelial cells of COVID-19 *** ODC1 as a proof-ofconcept,differential activation of polyamine biosynthesis was found to be modulated by the renin-angiotensin system(RAS)and positively associated with ACE2 *** experiments demonstrated that ODC1 expression could be differentially activated upon a panel of SARS-CoV-2 variants of concern(VOCs)and was found to be correlated with each VOCs’pathogenic ***,the presented study revealed the discriminative ability of key molecules on polyamine biosynthesis as a predictive marker for virulence evaluation and assessment of SARS-CoV-2 variants in cell or organoid *** work,therefore,presented a practical strategy that could be potentially applied as an evaluation tool for the pathogenicity of current and emerging SARS-CoV-2 variants.

关键词： SARS-CoV-2 multi-omics attenuated variant predictive pathogenic marker polyamine biosynthesis

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Optimization of nanofiber scaffold properties towards nerve guidance channel design

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Neural Regeneration Research 2018年第7期13卷 1179-1180页

作者： Graham ka.Hon Shea Francis mok Department of Orthopaedics and Traumatology The University of Hong Kong Li ka.Shing Faculty of Medicine The University of Hong Kong

Nerve guidance channels are limited by lack of topographical guidance：Treatment of sizeable nerve gaps remains problematic following peripheral nerve *** outcomes are good when neurorrhaphy,or direct end-to-end suture repair,is *** problem arises when there is significant segmental loss,which can occur following trauma as well as oncological procedures.

关键词： Optimization of nanofiber scaffold properties towards nerve guidance channel design

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Promoting Entrepreneurship and Innovation in China:Enhancing Research and Transforming University Curriculum

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Frontiers of Education in China 2013年第2期8卷 173-197页

作者： ka.Ho mok ka. Yue College of Education Zhejiang UniversityHangzhou 310007China Department of Asian and Policy Studies The Hong Kong Institute of EducationHong KongChina

In the last three decades or so,China has managed to become the second largest economy in the world,especially after engaging in economic reforms since the late *** being a“world factory”and playing a very significant role in manufacturing products and exporting to different parts of the globe,the Chinese government has realized that depending upon this production mode cannot sustain the country’s long term economic growth and ***,the Chinese government has tried to invest more in advancing technology,research and innovation,knowledge transfer,and promoting entrepreneurship *** article sets out to critically examine the major strategies and policies that the Chinese government has adopted in promoting entrepreneurship and innovation against the wider policies outlined above,with a focused reflection given to the major challenges facing Chinese universities during the process of promoting entrepreneurship and innovation,and entrepreneurship education.

关键词： entrepreneurship education promotion of innovation higher education China

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The D253N Mutation in the Polymerase Basic 2 Gene in Avian Influenza(H9N2) Virus Contributes to the Pathogenesis of the Virus in Mammalian Hosts

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Virologica Sinica 2018年第6期33卷 531-537页

作者： Jinfeng Zhang Rong Su Xiaoyun Jian Hongliang An Ronbing Jiang Chris ka.Pun mok Laboratory Medicine Center Foshan Hospital of Traditional Chinese Medicine Guangzhou University of Chinese Medicine Department of Respiratory Medicine Foshan Hospital of Traditional Chinese Medicine Guangzhou University of Chinese Medicine State Key Laboratory of Respiratory Disease National Clinical Research Center for Respiratory Disease Guangzhou Institute of Respiratory Health The First Affiliated Hospital of Guangzhou Medical University HKU-Pasteur Research Pole School of Public Health HKU Li Ka Shing Faculty of Medicine The University of Hong Kong

Mutations in the polymerase basic 2(PB2) gene of avian influenza viruses are important signatures for their adaptation to mammalian hosts. Various adaptive mutations have been identified around the 627 and nuclear localization sequence(NLS) domains of PB2 protein, and these mutations contribute to the replicative ability of avian influenza ***, few studies have focused on adaptive mutations in other regions of PB2. In this study, we investigated the functional roles of the D253N mutation in PB2 in an H9N2 virus. This mutation was found to affect an amino acid residue in the middle domain of the PB2 protein. The virus with the D253N mutation showed higher polymerase activity and transiently increased viral replication in human cells. However, the mutant did not show significant differences in viral replication in the respiratory tract of mice upon infection. Our results supported that the D253N mutation in the middle domain of PB2, similar to mutations at the 627 and NLS domains, specifically contributed to the replication of avian influenza viruses in human cells.

关键词： Avian influenza virus Mammalian adaptation D253N Polymerase basic 2(PB2) H9N2

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Experience of living donor liver transplantation for hepatocellular carcinoma in the University of Hong Kong Hospital

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Hepatoma Research 2022年第1期8卷 90-105页

作者： Janice Hoi Man mok ka.Wing Ma Kenneth Siu Ho Chok Li ka.Shing Faculty of Medicine The University of Hong KongHong KongChina Department of Surgery The University of Hong KongHong KongChina

Aim:To describe the current practise of living donor liver transplantation(LDLT)for hepatocellular carcinoma(HCC),including the patient selection criteria,surgical techniques,management of small-for-size syndrome,postoperative complications,and the results of our units,in the Liver Transplant Centre of Queen Mary Hospital,Hong Kong,one of the high-volume centres for LDLT in ***:Our centre practises careful selection for HCC patients using the University of California,San Francisco(UCSF)criteria,supplemented by alpha-fetoprotein level and the model for end-stage liver disease *** flexibility is offered to enthusiastic donors and recipients in LDLT while balancing the risks and *** pioneered in using the extended right lobe graft and the novel hepatic venoplasty technique,which lessen the risk of hyperperfusion and small-for-size syndrome with improved overall recipient *** were collected prospectively and presented as the mean values and ranges,or the number of patients in proportion of total patient ***:Of our patients,74.9% met the UCSF criteria,and 64.5% met the Milan criteria.A 5-year overall and disease-free survival rate of 78.9% and 76.3% were ***:LDLT is an ideal treatment for HCC in Hong Kong with regard to the critical organ shortage and high demand for *** current surgical techniques and post-transplant surveillance contribute to the positive outcome.

关键词： Living donor liver transplantation hepatocellular carcinoma high volume centre LDLT HCC

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Carvedilol Versus Other Nonselective Beta Blockers for Variceal Bleeding Prophylaxis and Death: A Network Meta-analysis

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Journal of Clinical and Translational Hepatology 2023年第5期11卷 1143-1149页

作者： ka.Shing Cheung Chiu-Hang mok Lok-ka.Lam Xian-Hua Mao Lung-Yi Mak Wai-ka. Seto Man-Fung Yuen Department of Medicine School of Clinical MedicineThe University of Hong KongQueen Mary HospitalHong KongChina Department of Medicine The University of Hong Kong-Shenzhen HospitalShenzhenGuangdongChina School of Clinical Medicine The University of Hong KongHong KongChina State Key Laboratory of Liver Research The University of Hong KongHong KongChina

Background and Aims:We aimed to perform a network meta-analysis(NWM)to examine comparative effectiveness of non-selective beta blockers(NSBBs)on prophylaxis of gastroesophageal variceal bleeding(GVB)and mortality ***:MEDLINE(OVID)and EMBASE databases were searched for eligible randomized clinical trials(RCTs)from inception to July 3,*** of interest included primary/secondary prophylaxis of GVB,failure to achieve hepatic venous pressure gradient(HVPG)decremental response,liver-related and all-cause mortality.A Bayesian NWM was performed to derive relative risk(RR)with 95%credible intervals(CrIs).The ranking probability of each NSBB was assessed by surface under cumulative ranking curve(SUCRA).Results:Thirty-three RCTs including 3,188 cirrhosis patients with gastroesophageal varices were *** with placebo,nadolol ranked first for reducing variceal bleeding[RR:0.25,(95%CrI:0.11–0.51);SUCRA:0.898],followed by carvedilol[RR:0.33,(95%CrI:0.11–0.88);SUCRA:0.692]and propranolol[RR:0.52,(95%CrI:0.37–0.75);SUCRA:0.405].Carvedilol was more effective than propranolol in achieving HVPG decremental response[RR:0.43,(95%CrI:0.26–0.69)].Carvedilol ranked first for reducing all-cause mortality[RR:0.32,(95%CrI:0.17–0.57);SUCRA:0.963],followed by nadolol[RR:0.48,(95%CI:0.29–0.77);SUCRA:0.688],and propranolol[RR:0.77,(95%CI:0.58–1.02);SUCRA:0.337].Similar findings were observed for liver-related *** ranked the *** RR of adverse events was 4.38,(95%CrI:0.33–161.4);SUCRA:0.530,followed by propranolol[RR:7.54,(95%CrI:1.90–47.89);SUCRA:0.360],and nadolol[RR:18.24,(95%CrI:91.51–390.90);SUCRA:0.158].Conclusions:Carvedilol is the preferred NSBB with better survival benefit and lower occurrence of adverse events among patients with gastroesophageal varices.

关键词： NSBB Carvedilol Nadolol Propranolol Varices Cirrhosis CPSH

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Sheng Jiang San, traditional multi-herb formulation, exerts anti-influenza effects in vitro and in vivo via neuraminidaseinhibition and immune regulation

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中国药理学与毒理学杂志 2019年第9期33卷 738-739页

作者： ZHANG Tian-bo XIAO meng-jie Chun-Kwok WONG ka.Pun CHRIS mok ZHAO Xin TI Hui-hui Pang-Chui SHAW State Key Laboratory of Respiratory Disease Guangdong Provincial Key Laboratory of Molecular Target&Clinical PharmacologySchool of Pharmaceutical Sciences and The Fifth Affiliated HospitalGuangzhou Medical UniversityGuangzhouChina The School of Life Sciences The Chinese University of Hong KongHong KongChina School of Public Health Li Ka Shing Faculty of MedicineThe University of Hong KongHong KongChina

OBJECTIVE Sheng Jiang San(SJS),a multi-herb formulation,is used in treating high fever,thirsty and anxiety in ancient China and it is sometimes used to treat seasonal influenza in ***,there is no evidencebased investigation and mechanism research to support SJS′s anti-influenza *** study aims to investigate the anti-influenza effect of SJS and its possible *** In this study,we examined the inhibitory effect of SJS against different influenza viruses on Madin-Darby canine kidney *** virus infected BALB/c mice were employed as in vivo model to evaluate the *** challenged with A/PR/8/34(H1N1)were orally administrated SJS 1 g·kg^-1 daily for seven days and monitored for 14 *** survival rate,body mass changes,lung index,lung viral load,histopathologic changes and immune-regulation of the mice were *** underlying anti-influenza virus mechanisms were studied by a series of biological assays in vitro to determine if hemagglutinin,ribonucleoprotein complex or nerauminidase were targets of *** SJS exerted a broad spectrum of inhibitory effects on multiple influenza strains in a dose-dependent *** IC50 of SJS against A/WSN/33(H1N1)was lower than 35 mg·L^-*** also protected 50%of mice from influenza virus PR8 *** lung index and the lung viral load of SJS treated mice were signifi⁃cantly decrease compared with untreated *** 2 g·L^-1 inhibited 80%of neuraminidase enzymatic *** also up-regulated TNF-αand IFN-αand down-regulated IL-2 of influenza virus induced *** SJS is a useful formulation for treating influenza virus infection.

关键词： Sheng Jiang San anti-influenza activity neuraminidase inhibition immuno-regulation

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Mink infection with influenza A viruses:an ignored intermediate host?

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One Health Advances 2023年第1期1卷 323-331页

作者： Chris ka.Pun mok Kun Qin The Jockey Club School of Public Health and Primary Care The Chinese University of Hong KongSARHong KongChina Li ka.Shing Institute of Health Sciences Faculty of MedicineThe Chinese University of Hong KongSARHong KongChina National Institute for Viral Disease Control and Prevention Chinese Center for Disease Control and Prevention(China CDC)100 Yingxin StreetWestern District100052 BeijingChina

Continuously emergence of human infection with avian influenza A virus poses persistent threat to public health,as illustrated in zoonotic H5N1/6 and H7N9 *** recent surge of infection to farmed mink by multiple subtypes of avian influenza A viruses in China highlights the role of mink in the ecology of influenza in this *** studies suggested that farmed mink in China are frequently infected with prevailing human(H3N2 and H1N1/pdm)and avian(H7N9,H5N6,and H9N2)influenza A ***,genetic analysis from the sequences of influenza viruses from mink showed that several strains acquired mammalian adaptive mutations compared to their avian *** transmission of SARS-CoV-2 from mink to human alerts us that mink may serve as an intermediate host or reservoir of some emerging *** the high susceptibility to different influenza A viruses,it is possible that mink in endemic regions may play a role as an“mixing vessel”for generating novel pandemic ***,enhanced surveillance of influenza viruses in mink should be urgently implemented for early warning of potential pandemic.

关键词： Mink Influenza Pandemic

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