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Comparing the effects of dual-task training and single-task training on walking,balance and cognitive functions in individuals with Parkinson’s disease:A systematic review

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Chinese Medical Journal 2024年第13期137卷 1535-1543页

作者： Xiaoying Lin Yanming Zhang Xiaowei Zhang Xi Chen Jianhua Liu Lei Yang marco yiu chung pang Department of Rehabilitation Medicine the First Affiliated Hospital of Xi’an Jiaotong UniversityXi’anShaanxi 710061China Department of Rehabilitation Medicine The Second People’s Hospital of KunmingKunmingYunnan 650051China Department of Rehabilitation Medicine Xuanwu HospitalCapital Medical UniversityBeijing 100000China Department of Physical Therapy China Rehabilitation Research CenterBeijing 100000China Department of Rehabilitation Sciences The Hong Kong Polytechnic UniversityHong Kong 999077China

Background:This systematic review aimed to examine whether dual-task(DT)training was superior to single-task(ST)training in improving DT walking,balance and cognitive functions for individuals with Parkinson’s disease(PD).Methods:Literature search was performed in the following electronic databases:PubMed,the Cochrane Library,Web of Science,and Metstr covering inception to May 10,*** in order to facilitate comparison across trials,we calculated the effect size(Hedges’g)of gait,balance,cognitive,and other parameters under both ST and DT conditions,using the mean change score and standard deviation(SD)of change score of the experimental and control *** controlled trials that examined the effects of DT motor and cognitive training in individuals with Parkinson’s disease were included for this systematic ***:A total of 214 participants recruited from six articles(actually five trials)were involved in this *** terms of walking ability,only double support time and stride time variability showed significant between-group difference(Hedges’g=0.34,0.18,respectively).Compared to ST training group,DT training group had a more improvement effect in laboratory balance measurement(Hedges’g=0.18,1.25),but no significant improvement in clinical balance *** significant between-group differences were observed,thus its training effect on cognitive function was ***:The DT training failed to achieve promising results better than ST training in improving DT walking and balance functions for individuals with *** firm conclusion cannot be drawn at present,due to the limited number of eligible *** sample size and high-quality studies are needed to investigate the effectiveness of DT training in individuals with PD.

关键词： Parkinson’s disease Dual-task training Mobility Cognition Systematic review

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Prostate health index can stratify patients with Prostate Imaging Reporting and Data System score 3 lesions on magnetic resonance imaging to reduce prostate biopsies

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Asian Journal of Andrology 2024年第1期26卷 20-24页

作者： John Shung-Lai Leung Wai-Kit Ma Brian Sze-Ho Ho Stacia Tsun-Tsun Chun Rong Na Yongle Zhan Chi-Yuen Ng Chi-Ho Ip Ada Tsui-Lin Ng yiu-chung Lam Division of Urology Department of SurgeryQueen Mary HospitalUniversity of Hong KongHong KongChina Division of Urology Department of SurgeryPrincess Margaret HospitalHongKongChina

We aim to evaluate prostate health index as an additional risk-stratification tool in patients with Prostate Imaging Reporting and Data System score 3 lesions on multiparametric magnetic resonance *** with biochemical or clinical suspicion of having prostate cancer who underwent multiparametric magnetic resonance imaging in two tertiary centers(Queen Mary Hospital and Princess Margaret Hospital,Hong Kong,China)between January 2017 and June 2022 were ***-magnetic resonance imaging fusion biopsies were performed after prostate health index *** who only had Prostate Imaging Reporting and Data System score 3 lesions were further stratified into four prostate health index risk groups and the cancer detection rates were *** of the 747 patients,47.3%had Prostate Imaging Reporting and Data System score 3 lesions *** detection rate of clinically significant prostate cancer in this group was 15.0%.The cancer detection rates of clinically significant prostate cancer had statistically significant differences:5.3%in prostate health index<25.0,7.4%in prostate health index 25.0-34.9,17.9%in prostate health index 35.0-54.9,and 52.6%in prostate health index≥55.0(P<0.01).Among the patients,26.9%could have avoided a biopsy with a prostate health index<25.0,at the expense of a 5.3%risk of missing clinically significant prostate *** health index could be used as an additional risk stratification tool for patients with Prostate Imaging Reporting and Data System score 3 *** could be avoided in patients with low prostate health index,with a small risk of missing clinically significant prostate cancer.

关键词： biopsy fusion biopsy magnetic resonance imaging prostate cancer prostate health index

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Nuclear mass predictions based on a deep neural network and finite-range droplet model(2012)

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Chinese Physics C 2024年第2期48卷 112-123页

作者：姚道驄梁豪兆李曉菁 Department of Physics The University of Hong KongHong Kong 999077China Department of Physics Graduate School of ScienceThe University of TokyoTokyo 113-0033Japan Interdisciplinary Theoretical and Mathematical Sciences Program(iTHEMS) RIKENWako 351-0198Japan

A neural network with two hidden layers is developed for nuclear mass prediction,based on the finiterange droplet model(FRDM12).Different hyperparameters,including the number of hidden units,choice of activation functions,initializers,and learning rates,are adjusted explicitly and *** resulting mass predictions are achieved by averaging the predictions given by several different sets of hyperparameters with different regularizers and seed *** can provide not only the average values of mass predictions but also reliable estimations in the mass prediction *** overall root-mean-square deviations of nuclear mass are reduced from 0.603 MeV for the FRDM12 model to 0.200 MeV and 0.232 MeV for the training and validation sets,respectively.

关键词： nuclear mass machine learning deep neural network

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New Sesquiterpene Glycosides from Culture Hairy Roots of Catharanthus roseus

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Chinese Journal of Chemistry 2007年第11期25卷 1695-1699页

作者： chung, ILL-Min ALl, Mohd CHUN, Se-Chul LEE, Sun-Joo SAN, Ka-yiu CHRISTIE, A. M. Peebles AHMAD, Ateeque Department of Applied Life Science Konkuk University Seoul 143-701 South Korea Faculty of Pharmacy Hamdard University New Delhi 110062 India Department of Bioengineering Rice University Houston Texas 77005 USA

Two new compounds cadin-2-en-1β-ol-1β-D-glucuronopyranoside （1）, guaia-l,7-dien-3β,13-diol-13α-D- glucofuranoside （2） along with three known compounds have been isolated from the culture hairy roots of Catharanthus roseus. Their structures have been elucidated with the help of 500 MHz NMR using 1D and 2D spectral methods： viz： ^1H and ^13C NMR, ^1H-^1H COSY, ^1H-^13C HETCOR and DEPT aided by ELMS, FAB-MS, HR-FABMS and IR spectroscopy.

关键词： Catharanthus roseus Apocynaceae culture hairy root new constituent

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Engineering Microneedle Patches for Improved Penetration:Analysis,Skin Models and Factors Affecting Needle Insertion

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Nano-Micro Letters 2021年第6期13卷 190-230页

作者： Pooyan Makvandi Melissa Kirkby Aaron RJHutton Majid Shabani Cynthia K.Y.yiu Zahra Baghbantaraghdari Rezvan Jamaledin marco Carlotti Barbara Mazzolai Virgilio Mattoli Ryan F.Donnelly Istituto Italiano Di Tecnologia Centre for Materials InterfaceViale Rinaldo Piaggio 3456025 PontederaPisaItaly School of Pharmacy Queen’s University Belfast97 Lisburn RoadBelfast BT97BLUK The BioRobotics Institute Scuola Superiore Sant’AnnaViale Rinaldo Piaggio 3456025 PontederaPisaItaly Paediatric Dentistry and Orthodontics Faculty of DentistryThe University of Hong KongPrince Philip Dental HospitalHong Kong SARChina Department of Chemical Materials and Industrial Production EngineeringUniversity of Naples FedericoⅡ80125 NaplesItaly Center for Advanced Biomaterials for Health Care(iit@CRIB) Italian Institute of Technology80125 NaplesItaly

Transdermal microneedle(MN)patches are a promising tool used to transport a wide variety of active compounds into the *** serve as a substitute for common hypodermic needles,MNs must pierce the human stratum corneum(~10 to 20μm),without rupturing or bending during *** ensures that the cargo is released at the predetermined place and ***,the ability of MN patches to sufficiently pierce the skin is a crucial *** the current review,the pain signal and its management during application of MNs and typical hypodermic needles are presented and *** is followed by a discussion on mechanical analysis and skin models used for insertion tests before application to clinical *** that affect insertion(e.g.,geometry,material composition and cross-linking of MNs),along with recent advancements in developed strategies(e.g.,insertion responsive patches and 3D printed biomimetic MNs using two-photon lithography)to improve the skin penetration are highlighted to provide a backdrop for future research.

关键词： Insertion responsive Implantable microneedles Skin indentation Transdermal microneedles Pain management

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基于启发式搜索分离向量的凸多面体碰撞检测(英文)

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计算机学报 2003年第7期26卷 837-847页

作者：李学庆孟祥旭汪嘉业王文平 chung Kelvin yiu Siu Ming 山东大学计算机科学与技术学院济南250100 香港大学计算机科学与资讯系统系

碰撞检测是计算机模拟物理过程的基础 ,在计算机图形学、CAD/CAM、虚拟现实和机器人等领域有着广泛的应用 .该文给出了一个新的用于凸多面体碰撞检测的算法———HP jump .HP jump建立了一个有效的碰撞检测模型用于报告物体的碰撞 ,同... 详细信息

碰撞检测是计算机模拟物理过程的基础 ,在计算机图形学、CAD/CAM、虚拟现实和机器人等领域有着广泛的应用 .该文给出了一个新的用于凸多面体碰撞检测的算法———HP jump .HP jump建立了一个有效的碰撞检测模型用于报告物体的碰撞 ,同时提供了一个快速的启发式的策略用于搜索两个凸多面体的分离向量 .该算法是利用凸多面体的层次表示来搜索支撑顶点对 ,用平衡二叉树来记录球面凸多边形的顶点 ,同时还利用了时间、空间相关性 ,这些都加速了算法的执行 .该文的最后给出了HP jump与GJK 。

关键词：计算机图形学启发式搜索算法凸多面体碰撞检测计算几何

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RECOMBINANT TISSUE-PLASMINOGEN ACTIVATOR(rt-PA)IN ACUTE MYOCARDIAL INFARCTION IN THE CHINESEIN HONG KONG

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中华医学杂志(英文版) 1992年第5期105卷 374-378页

作者： Woo Kam Sang Tse Kin Kee Mak yiu Kwong chung Hau Kwong Tse Chun Yan Department of Medicine Prince of Wales Hospital The Chinese University of Hong Kong Hong Kong Medical Unit United Christian Hospital Hong Kong

Eighty-nine consecutive Chinese patients(69males,20 females)with acute myocardial infarctiontreated by 100 mg recombinant tissue-plasminogenactivator(rt-PA)(7 intracoronarily,82 intravenously)at 3.7±1.0 hours after onset,and intravenous heparinor dipyridamole therapy started at 3 hours,were stu-died *** mean age was 59.6±***-six patients(51.7%)had anterior and 39patients(43.8%)had inferior *** evi-dence of reperfusion was seen in 63 patients(72.8%),while new complications included hypotension(5.6%),heart failure(6.7%),cardiac arrhythmias(76.4%),hematoma around vascular access sites(23.6%),melena(2.2%)and cerebral infarction(2.2%).Maximal changes in coagulation profiles were seen at3 hours,including a decrease in fibrinogen(by 64.2%),an increase in FDP by 11.7 times and D-dimers by *** patients(10.1%)had recurrence of anginaand 6 patients(6.9%)died due to pump failure(5)andreinfarction(1).Angiogram at 14 days confirmedTIMI(2 or 3)patency of infarct related arteries in62/81(76.5%)patients,with a mean global ejectionfraction of 52.5±12.4%.Nearly all survivors couldmaintain class Ⅰ-Ⅱ functional status after *** safety and promises of rt-PA for acutemyocardial infarction in the Chinese were confirmed.

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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

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Rare case of intussusception in an adult with acute myeloid leukemia

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World Journal of Gastroenterology 2015年第2期21卷 688-693页

作者： Man Fai Law Cheuk Kei Wong Chun Yin pang Hay Nun Chan Ho Kei Lai chung Yin Ha Celia Ng yiu Ming Yeung Sze Fai Yip Department of Medicine Tuen Mun Hospital Department of Medicine and Therapeutics Prince of Wales Hospital Department of Radiology Kwong Wah Hospital Department of Pathology Tuen Mun Hospital

Intussusception is rarely reported in adult patients with acute leukemia. We report a case of intussusception in a 29-year-old woman with acute myeloid leukemia(AML). She developed right lower quadrant pain, fever, and vomiting on day 16 of induction *** examination showed tenderness and guarding at the right lower quadrant of the abdomen. Abdominal computed tomography(CT) showed distension of the cecum and ascending colon, which were filled with loops of small bowel, and herniation of the ileocecal valve into the cecum. We proceeded to laparotomy and revealed ileocecal intussusception with the ileocecal valve as the leading point. The terminal ileum was thickened and invaginated into the cecum, which showed gangrenous changes. Right hemicolectomy was performed and microscopic examination of the colonic tissue showed infiltration of leukemic cells. The patient recovered after the operation and was subsequently able to continue treatment for AML. This case demonstrates that the diagnosis of intussusception is difficult because the presenting symptoms can be non-specific, but abdominal CT can be informative for preoperative diagnosis. Resection of the involved bowel is recommended when malignancy is suspected or confirmed. Intussusception should be considered in any leukemia patients presenting with acute abdomen. A high index of clinical suspicion is important for early diagnosis.

关键词： Intussusception Acute leukemia Abdominal pain Colo

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The effect of downstream resistance on flow diverter treatment of a cerebral aneurysm at a bifurcation: A joint computational-experimental study

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Journal of Hydrodynamics 2018年第5期30卷 803-814页

作者： ANDerson C.O.Tsang Billy Y.S.yiu Abraham Y.S.Tang W.C.chung Gilberto K.K.Leung AlexANDer K.K.Poon Alfred C.H.Yu Simon S.M.Lai K.W.Chow Department of Surgery Li Ka Shing Faculty of Medicine University of Hong Kong Department of Electrical and Computer Engineering University of Waterloo Department of Mechanical Engineering University of Hong Kong Department of Electrical and Electronic Engineering University of Hong Kong

Intracranial aneurysm can lead to hemorrhagic stroke upon rupture. Deployment of flow diverters can restrict the blood flow into aneurysm and mitigate the rupture risk. Computational fluid dynamics（CFD） and ultrasonography with pulse-wave and color Doppler ultrasound measurements were employed jointly to investigate the complex flow pattern in cerebral aneurysms, both before and after the deployment of flow diverters. Patient-specific configurations of both bifurcation and side-wall aneurysms were selected. The effect of downstream flow resistance was investigated by adjusting the volume flow rate and pressure at the outlet vessels computationally and experimentally. Velocity profiles in the aneurysm measured from ultrasonography showed good agreement with those from computer simulations. The discrepancy in velocity between the computational and experimental sets of data is less than 10%. The downstream resistance can alter the volume flux into a bifurcation aneurysm with a flow diverter deployed by 236%, while the corresponding value of a side-wall aneurysm is negligible. The vorticity of the aneurysmal flow was reduced by more than 80% in both cases after stenting. This study demonstrated that careful investigation of downstream flow resistance of a bifurcation aneurysm is essential to provide an accurate assessment of the aneurysmal flow dynamics after flow diverter deployment.

关键词： Intracranial aneurysms computational fluid dynamics (CFD) doppler ultrasound

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