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Impact of IPMOE on nursing tasks in the medical ward: A time-motion study

International Journal of Nursing Sciences 2018年第1期5卷 50-56页

作者： Ming Leung kenny kin chung chan Wing Leung Wong Alexander Chun Bon Law Princess Margaret Hospital Hong KongChina Tuen Mun Hospital Hong KongChina Hong Kong Baptist University Hong KongChina

Introduction:The In-patient Medication Order Entry System (IPMOE) was first implemented in the medical ward of Princess Margaret Hospital,Hong *** was a local developed close-loop system including prescription,dispensing and administration *** on its impact on nursing tasks would be important for practice improvement and subsequent system ***:The study was conducted to quantify the nursing times across medication-associated tasks for paper-based MAR and computer-based IPMOE,including change in the tasks and time patterns before and after IPMOE ***:This was a prospective observation study in medical wards before (Jan 2014-Jun 2014) and after (Mar 2015-Jun 2015) the implementation of *** conducted 8-hr observation studies of individual nurses with a customized application to time various pre-categorized nursing *** inferences and interrupted time series analysis was performed to identify the change in the intercept and trends over time after ***:The average number of medication-related tasks was significantly reduced from 61.07 to 29.81,a reduction of 31.26 episodes per duty (P < 0.001,95% CI 22.9-39.63).The time for the medication-related tasks was reduced from 32 min (SD =21.57) to 26.57 min (SD =11.35) and the medication administration time increased from 37.93 min (SD-14.78) to 44.37 min (SD 19.45),but there was no overall significant difference in the time spent on each duty (P =0.315) between the two *** improving trend in the delayed effect was observed (P =0.03),which indicated a run-in period for new application was needed in clinical ***:Our study had shown the time motion observation could be applied to measure the impact of the IPMOE in a busy clinical *** classification of activities,validation,objective measurement and longitudinal evaluation,the method could be applied in various systems as well as different clinical settings in

关键词： In-patient medication order entry system Medication systems Nursing Time and motion studies

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Overview of harmful algal blooms(red tides)in Hong Kong during 1975–2021

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Journal of Oceanology and Limnology 2022年第6期40卷 2094-2106页

作者： kin chung HO Department of Geography University of Hong KongHong Kong Special Administrative RegionHong Kong 999077China College of Marine Ecology and Environment Shanghai Ocean UniversityShanghai 201306China

Hong Kong has a long historical record of harmful algal blooms(HABs).In the 1980s-1990s,HABs were mainly pollution-related and most of the events happened in estuaries and enclosed embayment such as Tolo Harbour and Port *** major cause of HABs in 1980s-1990s was closely related to nutrients enrichment;included but not limited to changes in the concentration and ratio of soluble N and P in *** major causative organisms of HABs in Hong Kong by then were meso-plankton such as selected species of diatoms and dinofl ***,zooplankton was also a cause of red tides(the common name of HABs).There has been gradual change after the *** is attributed to higher and higher influences from the region,namely the Zhujiang(Pearl)River *** are increasing influences from Chinese mainland due to extraordinary social and economic growths during the past 20 *** the past10 years,HABs in Hong Kong was mainly subject to regional impacts in the Zhujiang River *** the duration period and covered areas have been enlarged which overwhelmed the localized influences of stream pollution and self-contamination of aquaculture *** flagellates of uncommon happening become dominant species in HAB ***,the seasonal impact of Noctiluca scintillans in late winter to mid spring remained.

关键词： harmful algal blooms(HABs) Tolo Harbour long-term trend regional eutrophication and environmental impacts

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Morphological variability and genetic diversity in five species of Skeletonema(Bacillariophyta)

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Progress in Natural Science:Materials International 2008年第11期18卷 1345-1355页

作者： Ho kin-chung School of Science & Technology The Open University of Hong Kong

Twelve strains of Skeletonema from Chinese coastal waters and another strain from the West Sea of Korea were examined using light microscopy(LM),scanning and transmission electron microscopy(SEM,TEM),and small subunit(SSU)rDNA sequence *** identified four species of Skeletonema:*** Sarno et Zingone,***(***)Bethge,*** Sarno et Kooistra,***- icum Cleve,as well as a Skeletonema-like *** are the first records of ***,*** and *** in *** Skeletonema-like species,MMDL5067,was isolated from the estuary of the changjiang *** morphologic and phylogenetic char- acteristics of this species are not correspond to those of any previously published Skeletonema *** intercalary fultoportula pro- cesses(IFPPs)has long open tubes,and the intercalary rimoportula process(IRP)is short and located inside the rim of the IFPPs. Phylogenetic analysis revealed that MMDL5630 clustered with *** in the NJ and MP trees,but its IRPs differed from those of previously described specimens of *** IRP is partially open,with an elongated opening at the base of the tube,and is longer than the *** specimens of *** and *** also have longer tubular IRPs than the *** to pre- viously described specimens of *** and ***,these two specimens we identified have shorter *** results reflect the ambiguity and diversity of Skeletonema *** are also significant for the future identification and management of red tides caused by Skeletonema in the seas around China.

关键词： Morphological variability Genetic diversity Skeletonema SSU rDNA

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Resection of T4 hepatocellular carcinomas with adjacent structures, is it justified？

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Hepatobiliary & Pancreatic Diseases International 2017年第1期16卷 52-57页

作者： Kenneth SH Chok Ka kin Ng Tan To Cheung Albert CY chan See Ching chan chung Mau Lo Department of Surgery The University of Hong Kong

BACKGROUND： T4 hepatocellular carcinoma （HCC） with invasion to adjacent structure（s） may require resection of not only the tumor but also the invaded structure（s）. This study aims to assess whether such combined resection for T4 HCC is justifiable. METHODS： Adult patients with T4 HCC were divided into three groups. Group 1： tumors and invaded adjacent structures were resected together if histopathologically confirmed tumor invasion; group 2： same as group 1 but histopathologically confirmed tumor adhesion; group 3： tumor resection only. Group comparisons were made. RESULTS： Totally 144 patients were included in the study. There were 71, 14 and 59 patients in groups 1, 2 and 3, respec- tively. The groups were comparable in demographics, compli- cation and survival. Ten hospital deaths occurred （5, 0 and 5 in groups 1, 2 and 3, respectively; P=0.533）. The 5-year overall survival （hospital mortality excluded） was 17.8% in group 1, 14.3% in group 2, and 28.9% in group 3 （P=0.191）. The 5-year disease-free survival was 10.4% in group 1 and 14.5% in group 3 （no data for group 2 yet）（P=0.565）. On multivariate analysis, macrovascular invasion and poor differentiation were risk factors for survival whereas combined resection did not impact patients＇ survival. CONCLUSIONS： Combined resection achieved survival outcomes similar to tumor resection only. Patients with tumor invasion and those with tumor adhesion had comparable survival after combined resection. At centers with the required expertise, combined resection should be attempted to treat T4 HCCs with clinically suspected invasion of adjacent structures.

关键词： desmosplastic reaction en-bloc resection hepatocellular carcinoma invasion recurrence

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Autocompletion of repetitive stroking with image guidance

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Computational Visual Media 2023年第3期9卷 581-596页

作者： Yilan Chen kin chung Kwan Hongbo Fu School of Creative Media City University of Hong KongTat Chee AvenueKowloonHong Kong SARChina University of Konstanz University Street 1078464 KonstanzGermany

Image-guided drawing can compensate for a lack of skill but often requires a significant number of repetitive strokes to create *** automatic stroke synthesis methods are usually limited to predefined styles or require indirect manipulation that may break the spontaneous flow of *** present an assisted drawing system to autocomplete repetitive short strokes during a user's normal drawing *** draw over a reference image as usual;at the same time,our system silently analyzes the input strokes and the reference to infer strokes that follow the user's input style when certain repetition is *** can accept,modify,or ignore the system's predictions and continue drawing,thus maintaining fluid control over *** key idea is to jointly analyze image regions and user input history to detect and predict *** proposed system can effectively reduce the user's workload when drawing repetitive short strokes,helping users to create results with rich patterns.

关键词： interaction autocompletion digital drawing prediction texture synthesis

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Women's experiences of formula feeding their infants:an interpretative phenomenological study

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Frontiers of Nursing 2018年第1期5卷 49-59页

作者： kin Yan Sze Zenobia chung Yee chan Vico chung Lim Chiang School of Nursing The Hong Kong Polytechnic University

Objective: This study aimed to explore the experiences of women in the process of formula feeding their infants. The World Health Organization has emphasized the importance of breastfeeding for infant health. After decades of breastfeeding promotions,breastfeeding rates in Hong Kong have been rising consistently; however, the low continuation rate is alarming. This study explores women's experiences with formula feeding their infants, including factors affecting their decision to do ***: A qualitative approach using an interpretative phenomenological analysis(IPA) was adopted as the study design. Data were collected from 2014 to 2015 through individual in-depth unstructured interviews with 16 women, conducted between 3 and 12 months after the birth of their infant. Data were analyzed using ***: Three main themes emerged as follows:(1) self-struggle, with the subthemes of feeling like a milk cow and feeling trapped;(2) family conflict, with the subtheme of sharing the spotlight; and(3) interpersonal tensions, with the subthemes of embarrassment,staring, and innocence. Many mothers suffered various stressors and frustrations during breastfeeding. These findings suggest a number of pertinent areas that need to be considered in preparing an infant feeding ***: The findings of this study reinforce our knowledge of women's struggles with multiple sources of pressure, such as career demands, childcare demands, and family life after giving birth. All mothers should be given assistance in making informed decisions about the optimal approach to feeding their babies given their individual situation and be provided with support to pursue their chosen feeding method.

关键词： formula feeding infant feeding breastfeeding feeding decision experience Qualitative interpretative phenom enological analysis women education support nurse nursing

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Retrohepatic vena cava deroofing in living donor liver transplantation for caudate hepatocellular carcinoma

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Hepatobiliary & Pancreatic Diseases International 2013年第5期12卷 552-555页

作者： See Ching chan William W Sharr Tan To Cheung Albert CY chan Simon HY Tsang Kenneth SH Chok kin chung Leung chung Mau Lo Department of Surgery The University of Hong Kong State Key Laboratory for Liver Research The University of Hong Kong Department of Pathology The University of Hong Kong

The removal of tumor together with the native liver in living donor liver transplantation for hepatocellular carcinoma is challenged by a very close resection margin if the tumor abuts the inferior vena *** is in contrast to typical deceased donor liver transplantation where the entire retrohepatic inferior vena cava is included in total *** we report a case of deroofing the retrohepatic vena cava in living donor liver transplantation for caudate hepatocellular *** order to ensure clear resection margins,the anterior portion of the inferior vena cava was *** right liver graft was inset into a Dacron vascular graft on the back table and the composite graft was then implanted to the recipient inferior vena *** this technique,we observed the no-touch technique in tumor removal,hence minimizing the chance of positive resection margin as well as the chance of shedding of tumor cells during manipulation in operation.

关键词： hepatocellular carcinoma liver transplantation

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Design, Synthesis, Photophysical Studies and Electrochemistry of Carbazole-, Oxadiazole-, and Oxadiazole-Triarylamine-Containing Rhenium(Ⅰ) Diimine Alkynyl Complexes

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Chinese Journal of Chemistry 2014年第10期32卷 1015-1021页

作者： Wai-kin chung Keith Man-chung Wong Vivian Wing-Wah Yam and Department of ChemistryThe University of Hong KongPokfulam RoadHong KongChina

A series of rhenium(I)diimine alkynyl complexes with various electron-and hole-transporting moieties has been synthesized and *** electronic absorption,emission and electrochemical properties have also been studied.

关键词： electrochemistry luminescence metal alkynyl rhenium(Ⅰ)diimine,UV/Vis spectroscopy

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Perforated peptic ulcer-an update

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World Journal of Gastrointestinal Surgery 2017年第1期9卷 1-12页

作者： kin Tong chung Vishalkumar G Shelat Department of General Surgery Tan Tock Seng HospitalSingapore 308433Singapore

Peptic ulcer disease(PUD) affects 4 million people worldwide annually. The incidence of PUD has been estimated at around 1.5% to 3%. Perforated peptic ulcer(PPU) is a serious complication of PUD and patients with PPU often present with acute abdomen that carries high risk for morbidity and mortality. The lifetime prevalence of perforation in patients with PUD is about 5%. PPU carries a mortality ranging from 1.3% to 20%. Thirtyday mortality rate reaching 20% and 90-d mortality rate of up to 30% have been reported. In this review we have summarized the current evidence on PPU to update readers. This literature review includes the most updated information such as common causes, clinical features, diagnostic methods, non-operative and operative management, post-operative complications and different scoring systems of PPU. With the advancement of medical technology, PUD can now be treated with medications instead of elective surgery. The classic triad of sudden onset of abdominal pain, tachycardia and abdominal rigidity is the hallmark of PPU. Erect chest radiograph may miss 15% of cases with air under the diaphragm in patients with bowel perforation. Early diagnosis, prompt resuscitation and urgent surgical intervention are essential to improve outcomes. Exploratory laparotomy and omental patch repair remains the gold standard. Laparoscopic surgery should be considered when expertise is available. Gastrectomy is recommended in patients with large or malignant ulcer.

关键词： Peptic ulcer Perforation Laparoscopy Surgery

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Analysis of Motor Synergies Utilization for Optimal Movement Generation for a Human-like Robotic Arm

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International Journal of Automation and computing 2013年第6期10卷 515-524页

作者： kin chung Denny Fu Yutaka Nakamura Tomoyuki Yamamoto Hiroshi Ishiguro Graduate School of Engineering Science Osaka University

Controlling human-like robots with musculoskeletal structure has been a challenging problem in engineering. In biological studies, motor synergy hypothesis has been proposed as a solution in order to control high degree-of-freedom and complex human body. In this paper, we focus on exploring the applicability of motor synergies in generating goal-directed movements by optimal control in a human-like robotic arm. We focus on three problems： 1） Can motor synergies facilitate the solving of optimal control problem？ 2） What properties should motor synergies have in order to achieve tasks？ 3） How should motor synergies be utilized better？ For the first problem we show that goal-directed movements can be achieved by utilizing motor synergies which have properties of achieving the goals. For the second problem, we testify motor synergies which have different properties and discover that energy efficiency is an important aspect in motor synergies which can also be utilized to achieve goal-directed movements. This discovery also implies that we can obtain motor synergies by other ways rather than from goal-directed optimal control signals. For the third problem, we show that the control complexity can be further reduced by utilizing a subset of motor synergies which are effective to achieve goals.

关键词： Motor synergies optimal control dimension reduction bio-inspired control biomimetics.

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