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Association between the elderly frequent attender to the emergency department and 30-day mortality： A retrospective study over 10 years

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World Journal of Emergency Medicine 2018年第1期9卷 20-25页

作者： Yuzeng Shen Yee Chien Tay edward wee kwan too Nan Liu Shao Wei Lam Marcus Eng Hock Ong Department of Emergency Medicine Singapore General Hospital Singapore Department of Emergency Medicine Sengkang Health Singapore Business Analytics Program National University of Singapore Singapore Singhealth Health Selvices Research Centre Singapore

BACKGROUND: To determine if elderly frequent attenders are associated with increased 30-day mortality, assess resource utilization by the elderly frequent attenders and identify associated characteristics that contribute to mortality. METHODS: Retrospective observational study of electronic clinical records of all emergency department(ED) visits over a 10-year period to an urban tertiary general hospital in Singapore. Patients aged 65 years and older, with 3 or more visits within a calendar year were identified. Outcomes measured include 30-day mortality, admission rate, admission diagnosis and duration spent at ED. Chi-square-tests were used to assess categorical factors and Student t-test was used to assess continuous variables on their association with being a frequent attender. Univariate and multivariate logistic regressions were conducted on all significant independent factors on to the outcome variable(30-day mortality), to determine factor independent odds ratios of being a frequent ***: 1.381 million attendance records were analyzed. Elderly patients accounted for 25.5% of all attendances, of which 31.3% are frequent attenders. Their 30-day mortality rate increased from 4.0% in the first visit, to 8.8% in the third visit, peaking at 10.2% in the sixth visit. Factors associated with mortality include patients with neoplasms, ambulance utilization, male gender and having attended the ED the previous ***: Elderly attenders have a higher 30-day mortality risk compared to the overall ED population, with mortality risk more marked for frequent attenders. This study illustrates the importance and need for interventions to address frequent ED visits by the elderly, especially in an aging society.

关键词： Frequent attenders Elderly Emergency department Mortality

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Van der Waals magnets: Wonder building blocks for two-dimensional spintronics?

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InfoMat 2019年第4期1卷 479-495页

作者： Wen Zhang Ping kwan Johnny Wong Rui Zhu Andrew T.S.wee Department of Physics National University of SingaporeSingaporeSingapore Centre for Advanced 2D Materials(CA2DM)and Graphene Research Centre(GRC) National University of SingaporeSingaporeSingapore

The unprecedented realization of two-dimensional(2D)van der Waals magnets excitingly extends the synergy between spintronics and 2D materials,started with graphene over the last *** article reviews the recent milestones in the development of 2D magnets and its derived *** particular,a number of critical challenges centered around the scalability,ambient stability and Curie temperature of these atomically thin magnets are *** mini-review also provides an outlook on what the future might hold for this integrated field of 2D spintronics,and assesses its potential in postsilicon electronics.

关键词： spintronics transition-metal chalcogenide two-dimensional material van der Waals magnets

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Metallosis with spinal implant loosening after spinal instrumentation:A case report

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世界骨科杂志:英文版 2023年第8期14卷 651-661页

作者： Yiu Hin kwan Hong Lee Terry Teo Shree Kumar Dinesh wee Lim Loo Department of Orthopaedic Surgery Changi General HospitalSingapore 529889Singapore

BACKGROUND Spinal metallosis is a rare complication following spinal instrumentation whereby an inflammatory response to the metal implants results in the development of granulomatous *** SUMMARY We describe the case of a 78-year-old woman who had recurrence of back pain 5 years after lumbar spine posterior decompression and instrumented *** spine radiographs showed hardware loosening and magnetic resonance imaging showed adjacent segment *** surgery revealed evidence of metallosis *** Spinal metallosis can present several years after *** and computed tomography may demonstrate hardware loosening secondary to *** metal concentrations associated with spinal metallosis have yet to be ***,metallosis is still an intraoperative and histopathological *** presence of metallosis after spinal instrumentation likely indicates a more complex underlying problem:Pseudarthrosis,failure to address sagittal balance,infection,and cross-threading of set ***,identifying metallosis is important,but initiating treatment promptly for symptomatic implant loosening is of greater paramount.

关键词： Metallosis Spine Instrumentation Implant loosening Corrosion Case report

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Escitalopram-induced liver injury: A case report and review of literature

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World Journal of Hepatology 2019年第10期11卷 719-724页

作者： Qin Xiang Ng Christl Suet kwan Yong Wayren Loke wee Song Yeo Alex Yu Sen Soh Institute of Mental Health Buangkok Green Medical ParkSingapore 539747Singapore MOH Holdings Pte Ltd Singapore 099253Singapore National University Hospital National University Health SystemSingapore 119074Singapore Yong Loo Lin School of Medicine National University of SingaporeSingapore 117597Singapore

BACKGROUND Depression is a growing public health problem that affects over 350 million people globally and accounts for approximately 7.5%of healthy years lost due to ***,one of the first-line medications for the treatment of depression,is a selective serotonin reuptake inhibitor and one of the most commonly prescribed antidepressant medications *** thought to be generally safe and with minimal drug-drug interactions,we herein present an unusual case of cholestatic liver injury,likely secondary to escitalopram *** SUMMARY A 56-year-old Chinese lady presented with fever and cholestatic liver injury two weeks after initiation of escitalopram for the treatment of psychotic *** examination was *** investigations,including a computed tomography scan of the abdomen and pelvis and tests for hepatitis A,B and C and for autoimmune liver disease were ***,a diagnosis of escitalopram-induced liver injury was *** stopping escitalopram,repeat liver function tests showed downtrending liver enzymes with eventual normalization of serum aspartate aminotransferase and alanine aminotransferase one-week *** Clinicians should be aware of the possibility of escitalopram-induced liver injury when initiating depressed patients on antidepressant *** requires extra vigilance as most patients may remain *** of liver function tests could be considered after initiation of antidepressant treatment,especially in patients with pre-existing liver disease.

关键词： Depression Antidepressant Escitalopram Liver injury Drug-induced Druginduced liver injury

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Two-dimensional ferromagnetic superlattices

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National Science Review 2020年第4期7卷 745-754页

作者： Shanshan Liu Ke Yang Wenqing Liu Enze Zhang Zihan Li Xiaoqian Zhang Zhiming Liao Wen Zhang Jiabao Sun Yunkun Yang Han Gao Ce Huang Linfeng Ai Ping kwan Johnny Wong ANDrew Thye Shen wee Alpha T.N'Diaye Simon A.Morton Xufeng Kou Jin Zou Yongbing Xu Hua Wu Faxian Xiu State Key Laboratory of Surface Physics and Department of Physics Fudan University Institute for Nanoelectronic Devices and Quantum Computing Fudan University Laboratory for Computational Physical Sciences (MOE) Fudan University Department of Electronic Engineering Royal Holloway University of London School of Electronic Science and Engineering Nanjing University Materials Engineering The University of Queensland Department of Physics National University of Singapore Centre for Advanced 2D Materials and Graphene Research Centre National University of Singapore Lawrence Berkeley National Laboratory School of Information Science and Technology Shanghai Tech University Centre for Microscopy and Microanalysis The University of Queensland Collaborative Innovation Center of Advanced Microstructures

Mechanically exfoliated two-dimensional ferromagnetic materials(2 D FMs) possess long-range ferromagnetic order and topologically nontrivial skyrmions in few layers. However, because of the dimensionality effect, such few-layer systems usually exhibit much lower Curie temperature(TC) compared to their bulk counterparts. It is therefore of great interest to explore effective approaches to enhance their TC, particularly in wafer-scale for practical applications. Here, we report an interfacial proximity-induced high-TC2 D FM FeGe Te(FGT) via A-type antiferromagnetic material Cr Sb(CS) which strongly couples to FGT. A superlattice structure of(FGT/CS)n, where n stands for the period of FGT/CS heterostructure, has been successfully produced with sharp interfaces by molecular-beam epitaxy on 2-inch wafers. By performing elemental specific X-ray magnetic circular dichroism(XMCD) measurements, we have unequivocally discovered that TCof 4-layer FeGeTecan be significantly enhanced from 140 K to230 K because of the interfacial ferromagnetic coupling. Meanwhile, an inverse proximity effect occurs in the FGT/CS interface, driving the interfacial antiferromagnetic Cr Sb into a ferrimagnetic state as evidenced by double-switching behavior in hysteresis loops and the XMCD spectra. Density functional theory calculations show that the Fe-Te/Cr-Sb interface is strongly FM coupled and doping of the spin-polarized electrons by the interfacial Cr layer gives rise to the TCenhancement of the FeGeTefilms, in accordance with our XMCD measurements. Strikingly, by introducing rich Fe in a 4-layer FGT/CS superlattice, TCcan be further enhanced to near room temperature. Our results provide a feasible approach for enhancing the magnetic order of few-layer 2 D FMs in wafer-scale and render opportunities for realizing realistic ultra-thin spintronic devices.

关键词： 2D ferromagnetic material room temperature 2-inch Fe3GeTe2 film wafers proximity effect (Fe3GeTe2/CrSb)nsuperlattice

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What do we know about housing supply?The case of Hong Kong SAR

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Economic and Political Studies 2020年第1期8卷 6-20页

作者： Charles Ka Yui Leung Joe Cho Yiu Ng edward Chi Ho Tang Department of Economics and Finance City University of Hong KongHong Kong SARChina Department of Economics and Finance Hong Kong Shue Yan UniversityHong Kong SARChina

The house price in the Hong Kong SAR of China is well-known to be‘unaffordable’.This paper relates the macroeconomy with the housing market of Hong Kong and argues that the housing supply plays a vital role in explaining the *** paper also shows that there are some practical challenges in understanding the housing supply of Hong Kong,including the potentially complicated ownership structure of real estate *** the discussion centres on the situation of Hong Kong,its lesson may also apply to housing markets in other small open economies.

关键词： New housing supply oligopolistic market structure ownership structure real estate development real estate developers

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THE PLACE OF MISSION HOSPITALS AND MEDICAL SCHOOLS IN THE NATIONAL HEALTH PROGRAMME OF CHINA

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Chinese Medical Journal 1935年第9期49卷 946-956页

作者： edward H. HUME Visiting Professor National Medical College Shanghai Member Council on Medical Mission C. M. A. Special Member Wei Sheng Shu Nanking. M. A. M. D. LL. D.

In the Canton Hospital there hangs a unique painting of Doctor Peter Parker, the pioneer medical missionary to China. It shows him with kwan Ato, the young assistant whom he chose to teach as an apprentice. The painting is far more than a portrait; it is a symbol of the way in which, through these years of the century ending in 1935, the medical missionary has conceived it to be his duty and his opportunity, not merely to dispense medicines for the relief of the sick, but unceasingly to train workers who should be able to carry on the work

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A Review of Skin Banking Guidelines and Standards Worldwide:Towards the Harmonization of Guidelines for Skin Banking in Therapeutic Applications for the Regions under the Asia Pacific Burn Association(APBA)

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Burns & Trauma 2020年第1期8卷 82-93页

作者： wee Ling Heng Qi Wei Wang Renuka Sornarajah Jacynthe Tremblay Nandita Melati Putri Suzina Sheikh Ab Hamid Pornthep Pungrasmi Hsian-Jenn Wang Dong Chul Kim Daizo Saito Nhu Lam Nguyen Wan Azman Wan Sulaiman Aditya Wardhana Vinita Puri Hajime Matsumura Niann-Tzyy Dai Rajeev BAhuja Gaoxing Luo Weifeng He Si Jack Chong Alvin Wen Choong Chua Transplant Tissue Centre Singhealth Duke-NUS Transplant CentreSingapore Heart Valve and Tissue Bank Lady Ridgeway Hospital for ChildrenDr Danister De Silva MawathaColomboSri Lanka Jacynthe Tremblay Consultation QuebecCanada Burn Unit Faculty of MedicineCipto Mangunkusumo General HospitalJakartaIndonesia Otorhinolaryngology-Head and Neck Surgery School of Medical SciencesHealth CampusUniversiti Sains MalaysiaKelantanMalaysia Plastic and Reconstructive Surgery Division King Chulalongkorn Memorial HospitalBangkokThailand Plastic and Reconstructive Surgery Taipei Medical UniversityTaipeiChinese Taipei Plastic and Reconstructive Surgery Bundang Jesaeng HospitalSeongnamSouth Korea Division of Traumatology Research InstituteNational Defence Medical CollegeSaitamaJapan Vietnam National Burn Hospital HanoiVietnam Reconstructive Sciences Programme School of Medical SciencesHealth CampusUniversiti Sains MalaysiaKelantanMalaysia Department of Plastic Surgery King Edward Memorial Hospital and Seth Gordhandas Sunderdas Medical CollegeMumbaiIndia Department of Plastic and Reconstructive Surgery Tokyo Medical UniversityTokyoJapan Division of Plastic and Reconstructive Surgery Department of SurgeryTri-Service General HospitalNational Defense Medical CenterTaipei Plastic and Aesthetic Surgery Sir Ganga Ram HospitalNew DelhiIndia Institute of Burn Research Southwest HospitalArmy Medical UniversityChongqingChina Department of Plastic Reconstructive and Aesthetic SurgerySingapore General HospitalSingapore Musculoskeletal Sciences Academic Clinical Programme Duke-NUS Medical SchoolSingapore

Currently,there are no harmonized guidelines which govern skin banking in the Asia Pacific ***,skin banks are either unregulated or rely on their nation’s legislation or international accreditation to uphold their quality standards.A new set of skin banking guidelines was devel-oped through a comprehensive review and collation of best international practices for the Asia Pacific Burn Association(APBA)members,from donor screening and testing,to skin recovery,processing,storage and distribution,and quality *** regulatory requirements reviewed include the European directives,Australia’s Therapeutic Goods Administration and Sin-gapore’s tissue banking *** technical and quality management recommendations are referenced from the American Association of Tissue Banks(AATB),the United States Food and Drug Administration standards and guidance documents,various relevant European guides,Japanese Society of Tissue Transplantation guidelines and the Asia Pacific Association of Surgical Tissue *** mainly from the AATB standards,the new Asia Pacific Burn Association Guidelines for Skin Banking in Therapeutic Applications offer a comprehensive manual,address-ing:governance and contracts;staff responsibilities;quality management;facilities,equipment and supplies management;donor consent and testing;and recommendations of good practices pertaining to skin recovery,processing,storage and *** complementing current generic regulations,they provide technical specifications of major aspects unaddressed in most *** inaugural set of new regional skin banking guidelines would be a start for regional members of the APBA to adopt,and will hopefully culminate in a set of standards so that,in the long run,skin allografts from this region can be of similar quality,which can simplify import process and facilitate the exchange of allografts between members.

关键词： Skin banking Skin allografts Skin transplantation Tissue banking Tissue donation

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