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Diagnostic utility of an anti-CCP point-of-care immunotest in Chinese patients with

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Diagnostic utility of an anti-CCP point-of-care immunotest i...

Magnetic field-assisted batch polishing method for the mass production of precision optical glass components

中华医学会第九次全国检验医学学术会议暨中国医院协会临床检验管理专业委员会第六届全国临床检验实验室管理学术会议

作者： Ip Wai-sze cheung kwan-yee Cautherley George W.H Renneber Rein hard Chan Cangel Pui-yee Department of Chemistry The Hong Kong University of Science and Technology

Background Early and accurate diagnosis of rheumatoid arthritis(RA) has become increasingly *** clinical significance of anti-cyclic citrullinated peptide(CCP) antibody in Chinese RA adults was studied using an anti-CCP2 rapid test. Methods Anti-CCP antibody and rheumatoid factor(RF) were determined in 95 RApatients and 140 patients with rheumatic diseases other than RA.

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Light(Advanced Manufacturing) 2024年第3期5卷 39-51页

作者： yee Man Loh Chunjin Wang Rui Gao Lai Ting Ho Chi Fai cheung State Key Laboratory of Ultra-precision Machining Technology Department of Industrial and Systems EngineeringThe Hong Kong Polytechnic UniversityHong KongChina

The demand for optical glass has been rapidly increasing in various industries,where an ultra-smooth surface and form accuracy are critical for the functional elements of the *** meet the high surface-quality requirements,a polishing process is usually adopted to finish the optical glass surface to ensure an ultra-smooth surface and eliminate sub-surface ***,current ultra-precision polishing processes normally polish workpieces individually,leading to a low production efficiency and high polishing *** mass-finishing methods cannot be used for optical ***,magnetic-field-assisted batch polishing(MABP)was proposed in this study to overcome this research gap and provide an efficient and cost-effective method for industrial use.A series of polishing experiments were conducted on typical optical components under different polishing parameters to evaluate the polishing performance of MABP on optical *** results demonstrated that MABP is an efficient method to simultaneously polish multiple lenses while achieving a surface roughness,indicated by the arithmetic mean height(Sa),of 0.7 nm and maintained a sub-micrometer surface form for all the *** addition,no apparent sub-surface damage was observed,indicating the significant potential for the high-quality rapid polishing of optical *** proposed method is highly competitive compared to the current optical polishing methods,which has the potential to revolutionize the polishing process for small optics.

关键词： Magnetic field-assisted Mass finishing Optical glass Ultra-precision machining polishing

Indications of pro-inflammatory cytokines in laparoscopic and open liver resection for early-stage hepatocellular carcinoma

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Hepatobiliary & Pancreatic Diseases International 2024年第3期23卷 257-264页

作者： Kevin Tak-Pan Ng Li Pang Jia-Qi Wang Wong Hoi She Simon Hing-Yin Tsang Chung Mau Lo kwan Man Tan To cheung Department of Surgery HKU-SZH&School of Clinical MedicineLi Ka Shing Faculty of MedicineThe University of Hong KongHong KongChina State Key Laboratory of Liver Research The University of Hong KongHong KongChina

Background:Our clinical practice of laparoscopic liver resection(LLR)had achieved better short-term and long-term benefits for patients with hepatocellular carcinoma(HCC)over open liver resection(OLR),but the underlying mechanisms are not *** study was to find out whether systemic inflammation plays an important ***:A total of 103 patients with early-stage HCC under liver resection were enrolled(LLR group,n=53;OLR group,n=50).The expression of 9 inflammatory cytokines in patients at preoperation,postoperative day 1(POD1)and POD7 was quantified by Luminex Multiplex *** relationships of the cytokines and the postoperative outcomes were compared between LLR and ***:Seven of the circulating cytokines were found to be significantly upregulated on POD1 after LLR or OLR compared to their preoperative *** to OLR,the POD1 levels of granulocytemacrophage colony-stimulating factor(GM-CSF),interleukin-6(IL-6),IL-8,and monocyte chemoattractant protein-1(MCP-1)in the LLR group were significantly *** POD1 levels of these cytokines were significantly correlated with longer operative time and higher volume of blood loss during *** levels of these cytokines were positively associated with postoperative liver injury,and the length of hospital ***,a high level of IL-6 at POD1 was a risk factor for HCC recurrence and poor disease-free survival after liver ***:Significantly lower level of GM-CSF,IL-6,IL-8,and MCP-1 after liver resection represented a milder systemic inflammation which might be an important mechanism to offer better short-term and long-term outcomes in LLR over OLR.

关键词： Laparoscopic liver resection Open liver resection Hepatocellular carcinoma Postoperative cytokines Inflammatory responses

Matching traditional Chinese medicine and western medicine-based research:Advanced nutraceutical development for proactive gastric cancer prevention

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World Journal of Gastrointestinal Oncology 2024年第9期16卷 3798-3819页

作者： Matteo Micucci Bian-Zhao Xiang Chen-Min Ting Hiu-yee kwan Michele Mari Michele Retini Sabrina Burattini Riham Osman Udodinma Jude Okeke Fuad Othman Abdullah Federico Gianfanti Michela Battistelli Department of Biomolecular Sciences University of Urbino Carlo BoUrbino 61029Italy Hong Kong Chinese Medicine Clinical Study Centre Chinese EQUATOR CentreSchool of Chinese MedicineChinese Clinical Trial Registry(Hong Kong)Hong Kong Baptist UniversityHong Kong 999077China Centre for Chinese Herbal Medicine Drug Development Hong Kong Baptist UniversityHong Kong 999077China Centre for Cancer and Inflammation Research School of Chinese MedicineHong Kong Baptist UniversityHong Kong 999077China Department of Chemistry College of ScienceSalahaddin University-ErbilErbil 44001Iraq Department of Pharmacognosy Faculty PharmacyTishk International UniversityErbil 44001Iraq Institute of Oncology Research Bellinzona CH6500Switzerland Universitàdella Svizzera Italiana Lugano CH6900Switzerland

Gastric cancer(GC),the third leading cause of cancer-related death globally,is complex and *** review explores multidisciplinary investigations of traditional Chinese medicine(TCM)combined with Western medical practices,emphasizing the development of nutraceuticals for cancer *** advanced analytical chemistry and food chemistry techniques,this study investigated how TCM components may be optimized for nutraceutical *** on molecular interactions with GC pathways,particularly the NF-κB,PI3K/Akt,and Wnt/β-catenin pathways,we examined the effects of TCM polyherbal formulas,extracts,and isolated *** agents modulate apoptosis and cellular proliferation,underscoring their potential in preventive *** convergence of nutraceutical and medicine food homology studies highlights a significant shift towards integrating TCM-derived compounds in a preventive health *** approach aims not only to enhance efficacy and reduce side effects but also to champion a preventive paradigm using personalized medicine to advance proactive health maintenance and disease *** combination of TCM and western medical practices offers promising avenues for future research and practical applications in GC prevention.

关键词： Traditional Chinese medicine Precision medicine Molecular network Phytochemistry Food chemistry Nutraceuticals Gastric cancer

Performance in the Fundamentals of Laparoscopic Surgery: Does it reflect global rating scales in the Objective Structured Assessment of Technical Skills in porcine laparoscopic surgery?

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Asian Journal of Urology 2024年第3期11卷 443-449页

作者： Ho yee Tiong Wei Zheng So Jeremy Yuen-Chun Teoh Shuji Isotani Gang Zhu Teng Aik Ong Eddie Shu-Yin Chan Peggy Sau-kwan Chu Kittinut Kijvikai Ming Liu Bannakji Lojanapiwat Michael Wong Anthony Chi-Fai Ng Yong Loo Lin School of Medicine Department of SurgeryNational University of SingaporeSingapore S.H.Ho Urology Centre Department of SurgeryThe Chinese University of Hong KongHong KongChina Department of Urology Juntendo University Graduate School of MedicineTokyoJapan Department of Urology National University HospitalSingapore Department of Urology Beijing United Family HospitalBeijingChina Department of Surgery University of Malaya Specialist CentreKuala LumpurMalaysia Division of Urology Department of SurgeryTuen Mun HospitalHong Kong Department of Urology Ramathibodi HospitalMahidol UniversitySalayaThailand Department of Urology Beijing HospitalBeijingChina Department of Urology Chiangmai Ram HospitalChiang MaiThailand International Urology Fertility&Gynaecology CentreSingapore

Objective:To correlate the utility of the Fundamentals of Laparoscopic Surgery(FLS)manual skills program with the Objective Structured Assessment of Technical Skills(OSATS)global rating scale in evaluating operative ***:The Asian Urological Surgery Training and Educational Group(AUSTEG)Laparoscopic Upper Tract Surgery Course implemented and validated the FLS program for its usage in laparoscopic surgical ***’basic laparoscopic skills were assessed using three different training models(peg transfer,precision cutting,and intra-corporeal suturing).They also performed live porcine laparoscopic surgery at the same *** surgery skills were assessed by blinded faculty using the OSATS rating ***:From March 2016 to March 2019,a total of 81 certified urologists participated in the course,with a median of 5 years of post-residency *** differences in task time did not reach statistical significance,those with more surgical experience were visibly faster at completing the peg transfer and intra-corporeal suturing FLS ***,they took longer to complete the precision cutting task than participants with less *** OSATS scores correlated weakly with all three FLS tasks(peg transfer time:r=0.331,r^(2)=0.110;precision cutting time:r=0.240,r^(2)=0.058;suturing with intracorporeal knot time:r=0.451,r^(2)=0.203).Conclusion:FLS task parameters did not correlate strongly with OSATS globing rating scale *** FLS task models demonstrated strong validity,it is important to assimilate the inconsistencies when benchmarking technical proficiency against real-life operative competence,as evaluated by FLS and OSATS,respectively.

关键词： TheFundamentalsof Laparoscopic Surgery The Objective Structured Assessment of Technical Skills Laparoscopic training Surgical education Surgical training Urological laparoscopic surgery

A ketone-functionalized aromatic saddle as a potential building block for negatively curved carbon nanobelts

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Chinese Chemical Letters 2019年第8期30卷 1506-1508页

作者： kwan Yin cheung Qian Miao Department of Chemistry The Chinese University of Hong Kong

A novel ketone-functionalized aromatic saddle consisting of 72 sp^2 carbon atoms is successfully synthesized and unambiguously identified with X-ray *** can,in principle,be used as a building block for synthesis of ne... 详细信息

关键词： Polycyclic arenes Synthesis Negatively curved carbon allotropes Carbon nanobelts Scholl reaction

Lu Xun＇s View of the Awakening of the Chinese People--Was There Really an ＂Epistemological Break＂？

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Frontiers of Literary Studies in China-Selected Publications from Chinese Universities 2012年第3期6卷 410-425页

作者： Chiu-yee cheung Division of Chinese School of Humanities and Social Science Nanyang Technological University Singapore 639798 Singapore

It has been argued that, starting in the late 1920s, Lu Xun＇s intellectual development underwent a significant transformation constituting what the French Marxist philosopher Louis Althusser has termed an ＂epistemological break.＂ Some of the explicitly more positive comments about the masses that Lu Xun made in his later years have been used to demonstrate this point. However, the existence of such a ＂break＂ is still debatable, and a detailed examination of Lu Xun＇s apparently optimistic comments reveals that Lu Xun possessed a more sophisticated understanding of the masses and the Chinese people. His understanding was informed by the concept of ＂national character.＂ This paper attempts to demonstrate the consistency of Lu Xun＇s view of the masses and the Chinese people and to resolve an apparent self-contradiction in Lu Xun＇s arguments.

关键词： Lu Xun Chinese "national character" epistemological break

Who Invited Lu Xun to Hong Kong？： An Examination of Two Accounts and Some New Materials

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Frontiers of Literary Studies in China-Selected Publications from Chinese Universities 2016年第3期10卷 392-407页

作者： Chiu-yee cheung School of Historical and Philosophical Inquiry The University of Queensland Brisbane St Lucia QLD 4072 Australia

Lu Xun visited Hong Kong in 1927 for two days and gave two very important lectures, but for several decades little was known about who made the invitation and who organized the trip. In 1981 Liu Sui claimed that it was Dr. Wong San-yin who invited Lu Xun, and Liu Sui himself was part of a reception team headed by Dr. Wong. In 1993 Zhao Jinsheng revealed that he was the person who had invited Lu Xun and organized his trip and lectures. Recently materials supporting both claims have been discovered and this paper examines these two claims, concluding that Zhao Jinsheng＇s account is more reliable.

关键词： Lu Xun Hong Kong Liu Sui Wong San-yin Cao Yanshen

The CST bounce universe model——A parametric study

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Science China(Physics,Mechanics & Astronomy) 2019年第1期62卷 9-15页

作者： Yeuk-kwan Edna cheung Xue Song ShuYi Li YunXuan Li YiQing Zhu Department of Physics Nanjing University Institute of High Energy Physics China Academy of Sciences Department of Physics Princeton University Department of Physics Brown University California Institute of Technology ETH Zürich

A bounce universe model with a scale-invariant and stable spectrum of primordial density perturbations was constructed using a consistent truncation of the D-brane dynamics from Type IIB string theory. A coupling was introduced between the tachyon field and the adjoint Higgs field on the D3-branes to lock the tachyon at the top of its potential hill and to model the bounce process,which is known as the Coupled Scalar and Tachyon Bounce(CSTB) Universe. The CSTB model has been shown to be ghost free,and it fulfils the null energy condition; in addition, it can also solve the Big Bang cosmic singularity problem. In this paper we conduct an extensive follow-up study of the parameter space of the CSTB model. In particular we are interested in the parameter values that can produce a single bounce to arrive at a radiation-dominated universe. We further establish that the CSTB universe is a viable alternative to inflation, as it can naturally produce a sufficient number of e-foldings in the locked inflation epoch and in the post-bounce expansion to overcome the four fundamental limitations of the Big Bang cosmology, which are flatness, horizon,homogeneity and singularity, resulting in a universe of the current size.

关键词： bounce universe Big Bang singularity tachyon inflation flatness and horizon problems