oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 2 )

2018 ( 5 )

2017 ( 12 )

2016 ( 9 )

Custom range...

Search Results: 1 - 10 of 2606 matches for " Kin Lam "
All listed articles are free for downloading (OA Articles)
Page 1 /2606
Display every page Item
Personal development empowerment through ICT in corporate learning: A case study of two developing cities in China
Sanches Lam,Kin Fai Ho
International Journal of Advanced Corporate Learning (iJAC) , 2010, DOI: 10.3991/ijac.v3i2.1280
Abstract: Human development despite faltering economic development has been taking place in China where is one of the fastest growing countries in the world. While the formal government sector continues to play an important role, it is the growth of private participation in providing suitable ICT training, especially to the socially and economically under-privileged that appear to have provided the impetus for growth in qualified professionals. This paper argues that the use of ICT in corporate education and training is likely to empower their employees skill sets. The results of this study, which apply two Chinese cities as a case analysis representing the use of ICT could be an effective teaching tool for multi-national corporate learning in developing cities. The authors also have developed a 4Is framework for discussion.
Supplementation of Fructooligosaccharide Mildly Improves the Iron Status of Anemic Rats Fed a Low-Iron Diet  [PDF]
Fan Zhang, Ken Kin Lam Yung, Stephen Sum Man Chung, Chi Kong Yeung
Food and Nutrition Sciences (FNS) , 2017, DOI: 10.4236/fns.2017.82019
Abstract: Also known as a prebiotic, fructooligosaccharide (FOS) resists digestion by gastric acid and pancreatic enzymes in vivo, but is preferentially fermented by beneficial intestinal bacteria once it reaches the colon. While some studies suggest that FOS and its fermentation products may influence the iron absorption process, the effects of prolonged FOS supplementation on iron status remain unclear. The objective of this study was therefore to determine the enhancing effects of FOS supplementation on the iron status of anemic rats. Male Sprague-Dawley rats receiving a low-iron diet (12 μg/g) for 14 days showed significantly lower hemoglobin concentration, as well as lower tissue non-heme iron levels than rats receiving a regular diet (45 μg/g), confirming iron-deficiency anemia. On the first day of the feeding trial, two groups of anemic rats (n = 6) were fed the same low-iron diet with or without FOS supplementation, while two other groups of anemic rats were switched to the regular diet with or without FOS supplementation to allow recovery. FOS was provided to the rats by dissolving in water at 5% (w/v). Anemic rats fed the low-iron diet showed a mild increase (p < 0.05) in hemoglobin level after 21 days of FOS supplementation when compared to rats without FOS. For anemic rats switched to the regular diet, hemoglobin level returned to normal after 14 days and FOS supplementation showed no additional effects. Our results suggest that FOS supplementation has a mild enhancing effect on the iron status of anemic subjects on a low-iron diet.
Generating a Generation of Proteasome Inhibitors: From Microbial Fermentation to Total Synthesis of Salinosporamide A (Marizomib) and Other Salinosporamides
Barbara C. Potts,Kin S. Lam
Marine Drugs , 2010, DOI: 10.3390/md8040835
Abstract: The salinosporamides are potent proteasome inhibitors among which the parent marine-derived natural product salinosporamide A (marizomib; NPI-0052; 1) is currently in clinical trials for the treatment of various cancers. Methods to generate this class of compounds include fermentation and natural products chemistry, precursor-directed biosynthesis, mutasynthesis, semi-synthesis, and total synthesis. The end products range from biochemical tools for probing mechanism of action to clinical trials materials; in turn, the considerable efforts to produce the target molecules have expanded the technologies used to generate them. Here, the full complement of methods is reviewed, reflecting remarkable contributions from scientists of various disciplines over a period of 7 years since the first publication of the structure of 1.
Use of antibiotics by primary care doctors in Hong Kong
Tai Lam, Pak Ho, Kwok Lam, Kin Choi, Raymond Yung
Asia Pacific Family Medicine , 2009, DOI: 10.1186/1447-056x-8-5
Abstract: General practitioners in Hong Kong were invited to fill in a short questionnaire on every patient with infection that they had seen on the first full working day once every three months for four consecutive quarters starting from December 2005.Forty six primary care doctors took part and a total of 3096 completed questionnaires were returned. The top three diagnoses were upper respiratory tract infection (46.7%), gastrointestinal infection (8.2%) and pharyngitis (7.1%). Thirty percent of patient encounters with infections were prescribed antibiotics but only 5.2% of patient encounters with upper respiratory tract infection (URTI) were prescribed antibiotics. Amino-penicillins were the most commonly used antibiotics while beta-lactam/beta-lactamase inhibitor combinations (BLBLIs) were the second most commonly used antibiotics and they accounted for 16.5% and 14.0% of all antibiotics used respectively. Of all patients or their carers, those who demanded or wished for antibiotics were far more likely to be prescribed antibiotics (Pearson chi-square test, p < 0.0001). Those patients who were attending the doctors for follow-up consultations were also more likely to be prescribed antibiotics (Pearson chi-square test, p < 0.001).The antibiotic prescribing patterns of primary care doctors in Hong Kong are broadly similar to primary care doctors in other developed countries but a relatively low rate of antibiotics is used for URTI.Overuse of antibiotics is a worldwide phenomenon [1,2] and it contributes to the emergence of antimicrobial resistance [3-5]. Unnecessary use of antibiotics also leads to an increased risk of side effects [6], increased medical care costs [7] and medicalising effects [8].In the Fifty-eighth World Health Assembly held in May 2005, it was resolved and agreed by more than 60 countries that the containment of antimicrobial resistance is an international goal; however the strategy for doing this has not been widely implemented. This assembly urged memb
New variance ratio tests to identify random walk from the general mean reversion model
Kin Lam,May Chun Mei Wong,Wing-Keung Wong
Advances in Decision Sciences , 2006, DOI: 10.1155/jamds/2006/12314
Abstract: We develop some properties on the autocorrelation of the k-period returns for the general mean reversion (GMR) process in which the stationary component is not restricted to the AR(1) process but takes the form of a general ARMA process. We then derive some properties of the GMR process and three new nonparametric tests comparing the relative variability of returns over different horizons to validate the GMR process as an alternative to random walk. We further examine the asymptotic properties of these tests which can then be applied to identify random walk models from the GMR processes.
Pragmatic meta-analytic studies: learning the lessons from naturalistic evaluations of multiple cases
Paul Lam,Carmel McNaught,Kin-Fai Cheng
Research in Learning Technology , 2008, DOI: 10.3402/rlt.v16i2.10886
Abstract: This paper explores the concept of pragmatic meta-analytic studies in eLearning. Much educational technology literature focuses on developers and teachers describing and reflecting on their experiences. Few connections are made between these experiential ‘stories'. The data set is fragmented and offers few generalisable lessons. The field needs guidelines about what can be learnt from such single-case reports. The pragmatic meta-analytic studies described in this paper have two common aspects: (1) the cases are related in some way, and (2) the data are authentic, that is, the evaluations have followed a naturalistic approach. We suggest that examining a number of such cases is best done by a mixed-methods approach with an emphasis on qualitative strategies. In the paper, we overview 63 eLearning cases. Three main meta-analytic strategies were used: (1) meta-analysis of the perception of usefulness across all cases, (2) metaanalysis of recorded benefits and challenges across all cases, and (3) meta-analysis of smaller groups of cases where the learning design and/or use of technology are similar. This study indicated that in Hong Kong the basic and non-interactive eLearning strategies are often valued by students, while their perceptions of interactive strategies that are potentially more beneficial fluctuate. One possible explanation relates to the level of risk that teachers and students are willing to take in venturing into more innovative teaching and learning strategies.
A Local Active Contour Model for Image Segmentation with Intensity Inhomogeneity
Kaihua Zhang,Lei Zhang,Kin-Man Lam,David Zhang
Computer Science , 2013,
Abstract: A novel locally statistical active contour model (ACM) for image segmentation in the presence of intensity inhomogeneity is presented in this paper. The inhomogeneous objects are modeled as Gaussian distributions of different means and variances, and a moving window is used to map the original image into another domain, where the intensity distributions of inhomogeneous objects are still Gaussian but are better separated. The means of the Gaussian distributions in the transformed domain can be adaptively estimated by multiplying a bias field with the original signal within the window. A statistical energy functional is then defined for each local region, which combines the bias field, the level set function, and the constant approximating the true signal of the corresponding object. Experiments on both synthetic and real images demonstrate the superiority of our proposed algorithm to state-of-the-art and representative methods.
基于感兴趣区的图像编码与渐进传输
卓力,沈兰荪,LAM,Kin-man
电子学报 , 2004,
Abstract: 本文采用一种任意形状的整型或非整型小波变换,结合高效的SPIHT(SetPartitioningInHierarchicalTrees)图像编码算法,分别实现了任意形状感兴趣区的无损压缩和非感兴趣的有损压缩算法.另外本文还提出了两种感兴趣区优先编码策略,可以保证在极低的码率下感兴趣区的重建质量远远好于非感兴趣区的重建质量,满足用户快速、个性化的浏览需求.这些方法得到的压缩码流都具有嵌入的特点,支持渐进传输.
Adjacent Nucleotide Dependence in ncRNA and Order-1 SCFG for ncRNA Identification
Thomas K. F. Wong,Tak-Wah Lam,Wing-Kin Sung,Siu-Ming Yiu
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0012848
Abstract: Non-coding RNAs (ncRNAs) are known to be involved in many critical biological processes, and identification of ncRNAs is an important task in biological research. A popular software, Infernal, is the most successful prediction tool and exhibits high sensitivity. The application of Infernal has been mainly focused on small suspected regions. We tried to apply Infernal on a chromosome level; the results have high sensitivity, yet contain many false positives. Further enhancing Infernal for chromosome level or genome wide study is desirable.
Bacille-Calmette-Guérin vaccine-associated suppurative lymphadenitis in Hong Kong (China), 2004 to 2012
Tsz-sum Lam,Yiu-Hong Leung,Hoi-ling Tsang,Kin-wing Choi
Western Pacific Surveillance and Response , 2013, DOI: 10.5365/wpsar.2013.4.1.001
Abstract:
Page 1 /2606
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.