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Cognition, Metacognition, and Metacognitive Theory : A Critical Analysis
Pui-wan Cheng 대한사고개발학회 1999 The International Journal of Creativity & Problem Vol.9 No.1
This paper offers a critical analysis of the validity and utility of metacognition as an independent construct for psychological studies. To examine the construct validity of metacognition, the relationship between cognition and metacognition is first analyzed and the conceptual issues involved in the study of metacognition are then examined. To demonstrate the construct utility of metacognition, theoretical perspectives from different areas of psychological studies with a metacognitive focus are presented. It is concluded that metacognition, with its emphasis on the superordinate role of awareness and control in directing cognitive activities and its linkage to motivational correlates, is a valid and useful concept that generates important insights into the conditions and mechanisms of human performance.
Endovascular Management of Hepatic Artery Pseudoaneurysms: A Case Series
Pui Lam Cheung,Yat Sing Lee,Chong Boon Tan,Hin Yue Lau,Chi Wai Siu,Chik Xing Chan,Wai Tat Chan,Cheuk Him Ho 대한혈관외과학회 2023 Vascular Specialist International Vol.39 No.1
Although rare, hepatic artery aneurysms are associated with a high morbidity and mortality, necessitating a prompt diagnosis. A significant proportion of hepatic artery aneurysms are pseudoaneurysms, and the major risk factors of which have already been identified in previous literatures. Presentation can be variable, but diagnosis almost relies entirely on computed tomography and digital subtraction angiography. The endovascular approach has progressively become the preferred option due to its better performance when compared to the traditional surgical approach. However, formulation of an endovascular treatment plan for these lesions remains difficult as multiple factors should be considered to identify the best endovascular treatment modality. Five cases of pseudoaneurysm due to recent Whipple operation, hepatobiliary infections, and underlying malignancy are presented in this article to illustrate the effectiveness and complexity of endovascular treatment in this disease entity.
( Pui-tak Lee ) 부경대학교 글로벌지역학연구소 2017 Journal of Global and Area Studies(JGA) Vol.1 No.2
The primary concern of this paper is to examine the business networks of Cantonese merchants in the period of 1850s-1910s, based on what the merchants recorded by themselves in the family correspondences and the wills (the probate jurisdiction, the Supreme Court of Hong Kong, Hong Kong Record Series 144). These materials are informative of the testators’ life stories such as origins of emigration, family details, occupation, involvement of businesses, and location of residence. From these materials emerges the networking pattern that made the Cantonese merchants successful at home and overseas. To examine the hidden aspect of cross border networks of Cantonese, this paper will focus on the following issues: How did the Cantonese successfully extend and maintain their networks of business from Guangdong to Hong Kong, South China, Southeast Asia, Australia and North America? To what extent were the family networks interwoven with the business networks and were they effective in helping production, circulation, and consumption? Above all, did the Cantonese overseas network tell us something unique about Chinese practice of capitalism?
Managing the Pediatric Spine: Growth Assessment
Jason Pui Yin Cheung,Keith Dip-Kei Luk 대한척추외과학회 2017 Asian Spine Journal Vol.11 No.5
Management of pediatric spinal deformities requires an accurate prediction of growth spurts to allow for timely initiation of treatment and prevention of curve progression. Determining remaining growth potential is also important for avoiding prolonged unnecessary treatment, e.g. bracing for patients nearing skeletal maturity. Many clinical and radiological growth parameters have been developed to aid clinicians in growth prediction. Of these, several commonly used measures such as height and arm span growth trends, timing of menarche, and the Risser sign are mostly retrospective and lack strong predictive utility. Bone age assessments, such as digital skeletal age and the distal radius and ulna classification, are more accurate parameters, but further research is required to determine interethnic variations and develop their role in management decisions.
A Lethal Sequelae of Spinal Infection Complicating Surgery and Radiotherapy for Head and Neck Cancer
Jason Pui Yin Cheung,Kin Cheung Mak,Helen Hoi Lun Tsang,Keith Dip-Kei Luk 대한척추외과학회 2015 Asian Spine Journal Vol.9 No.4
Patients who have undergone neck dissection and radiotherapy are at risk of cervical spine infections. Furthermore, previous radiotherapy and cervical spine infections can lead to fistula formation to the subarachnoid space and intracranial infection. This report discusses the serious consequences of a missed cervical spine infection including cerebrospinal fluid fistula formation and persistent central nervous system infection, and serves as a reminder to clinicians of the possible association between cervical spine infections and prior head and neck surgery and radiotherapy. In all such cases, the posterior pharyngeal wall should be inspected during followup. Despite the appearance of an intracranial infection, the cervical spine should be investigated, especially if the response to appropriate antibiotics is suboptimal.