ORCID Profile
0000-0001-5567-9282
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Publisher: American Psychological Association (APA)
Date: 2014
DOI: 10.1037/A0033619
Publisher: Springer Science and Business Media LLC
Date: 12-11-2023
Publisher: Oxford University Press (OUP)
Date: 25-07-2014
Publisher: Springer Science and Business Media LLC
Date: 03-2007
DOI: 10.1007/S10597-006-9077-0
Abstract: Generalized anxiety disorder (GAD) is understudied in Asian communities. There were 3,304 Chinese subjects (aged 15-60 years) randomly drawn from the general population of Hong Kong and successfully interviewed. The participation rate was 65.8%. The six-month prevalence of DSM-IV GAD was 4.1%. Over half of the GAD subjects reported palpitations and bowel symptoms. Comorbid depressive mood (65%) and substance use (35%) were common. Forty-one percent of GAD subjects sought help, usually from general practitioners who prescribed tranquilizers after negative physical investigations. Telephone-based surveys have limitations but provide an affordable and destigmatizing alternative to face-to-face surveys for communities with limited mental health resources.
Publisher: MDPI AG
Date: 10-06-2019
DOI: 10.3390/S19112633
Abstract: Non-GPS localization has gained much interest from researchers and industries recently because GPS might fail to meet the accuracy requirements in shadowing environments. The two most common range-based non-GPS localization methods, namely Received Signal Strength Indicator (RSSI) and Angle-of-Arrival (AOA), have been intensively mentioned in the literature over the last decade. However, an in-depth analysis of the weighted combination methods of AOA and RSSI in shadowing environments is still missing in the state-of-the-art. This paper proposes several weighted combinations of the two RSSI and AOA components in the form of pAOA + qRSSI, devises the mathematical model for analyzing shadowing effects, and evaluates these weighted combination localization methods from both accuracy and precision perspectives. Our simulations show that increasing the number of anchors does not necessarily improve the precision and accuracy, that the AOA component is less susceptible to shadowing than the RSSI one, and that increasing the weight of the AOA component and reducing that of the RSSI component help improve the accuracy and precision at high Signal-to-Noise Ratios (SNRs). This observation suggests that some power control algorithm could be used to increase automatically the transmitted power when the channel experiences large shadowing to maintain a high SNR, thus guaranteeing both accuracy and precision of the weighted combination localization techniques.
Publisher: American Psychological Association (APA)
Date: 03-2014
DOI: 10.1037/A0033896
Publisher: Elsevier BV
Date: 09-2007
Publisher: Elsevier BV
Date: 2017
Publisher: Emerald
Date: 20-11-2019
Abstract: The purpose of this research has been to investigate whether burnout and eating behaviour traits were associated with food intake. Participants ( n =109) 78 per cent female, mean age 39 years, were recruited from various occupations within a UK university to complete an on-line survey. Dietary habits were measured using Food Frequency Questionnaire (FFQ), burnout using the Maslach Burnout Inventory (MBI) and eating behaviour traits using the Three Factor Eating Questionnaire (TFEQ) R18. Principal component analyses of FFQ responses revealed four dietary patterns: fast/junk food (+chicken and low fruit/vegetables) meat/fish dairy/grains beans/nuts. Dietary patterns were examined using multiple regression analysis as outcome variables with age, gender, burnout and eating behaviour traits as explanatory variables. More frequent consumption of “junk/fast food” was associated with lower TFEQ-Cognitive Restraint, higher TFEQ-Uncontrolled Eating (UE), lower MBI-Emotional Exhaustion and higher MBI-Depersonalisation. More frequent consumption of beans/nuts was associated with higher TFEQ-UE and higher MBI-Emotional Exhaustion. Models for meat/fish and grains/dairy dietary patterns were not significant. Burnout may need to be considered to reduce junk food consumption in higher education employees. Causality between burnout, eating behaviour traits and food consumption requires further investigation on larger s les. This appears to be the first study to have explored associations between burnout, eating behaviour traits and dietary patterns.
Publisher: Routledge
Date: 15-08-2017
Publisher: Springer Publishing Company
Date: 02-2012
Publisher: Elsevier BV
Date: 04-2006
DOI: 10.1016/J.SOCSCIMED.2005.08.016
Abstract: This research examines the experience of stigma associated with psychiatric treatment among Chinese patients with schizophrenia in Hong Kong. In focus groups patients described stigma experiences related to clinic visits and the side effects of antipsychotic medications. Additionally, they revealed various adverse treatment experiences during hospitalization which point to the presence of structural discrimination. Based on the focus group findings, a questionnaire was developed and completed by 320 and 160 patients with schizophrenia and diabetes mellitus, respectively. Results showed that patients with schizophrenia were more likely to anticipate stigma, conceal illness, and default on clinic visits than patients with diabetes. Medication-induced stigma occurred in 48% of patients with schizophrenia. It brought about the unwelcome disclosure of illness, workplace difficulties, family rejection, and treatment non-adherence. Adverse experiences during hospitalization were reported by 44% of patients with schizophrenia. They included negative staff attitudes, excessive physical/chemical restraints, inadequate information/complaint systems, and limited rights. We conclude that stigma, at both in idual and structural levels, represents a central experience of the treatment of schizophrenia in Hong Kong. Because inequitable health policy, resource allocation, and service organization privilege service providers' control over users, treatment-related stigma may be a prime ex le of the social production of stigma and discrimination based on power difference between the stigmatizers and the stigmatized. To examine this critically we need to redirect stigma research to tractable clinical circumstances and structural mechanisms that produce and maintain stigmatizing and discriminatory psychiatric practice. Destigmatization programs must be evaluated not only by change in public attitudes but also by how much they reduce structural stigma and improve patients' lives.
Publisher: Springer Publishing Company
Date: 02-2012
Publisher: BRILL
Date: 24-11-2020
Publisher: Hogrefe Publishing Group
Date: 12-2016
DOI: 10.1024/1662-9647/A000157
Abstract: Abstract. This study examined the link between physical symptoms, affect, and self-esteem in everyday life across adulthood. The s le consisted of young, middle-aged, and older adults. Results indicated a significant Self-Esteem × Physical Symptoms interaction on positive affect (PA). The effect of self-esteem on PA was lower with increasing physical symptoms. For negative affect (NA), the Self-Esteem × Physical Symptoms × Age interaction was significant. In older adults, the effect of self-esteem on NA was lower with increasing physical symptoms. Thus, the effect of self-esteem ran opposite to the expected buffering effect. In addition, the age difference in the effect of self-esteem on NA presents potential challenges to the adaptive capacity of older adults in emotional well-being.
Publisher: Informa UK Limited
Date: 03-04-2014
Publisher: American Psychological Association (APA)
Date: 12-2015
DOI: 10.1037/PAG0000054
Abstract: Late life involves a variety of different challenges to well-being. This study extends and qualifies propositions drawn from the paradox of well-being in aging using 15-year longitudinal data on depressive symptoms from old and very old participants in the Australian Longitudinal Study of Ageing (Baseline N = 2,087 Mage = 78.69 years range: 65-103 years 49.40% women). We first examined age-related trajectories in depressive symptoms from young-old to oldest-old, taking into account (changes in) relevant correlates, pathology, and mortality and, second, we investigated gender differences in these trajectories. Results revealed that age-related trajectories of depressive symptoms were predictive of mortality hazards. The unique predictive effects of both level of, and change in, depressive symptoms were independent of one another and held after taking into account education as well as changes in marital status, living arrangements, cognitive function, and illness burden. In addition, results indicated that depressive symptoms were elevated among participants suffering from arthritis, and increased with age more markedly in men than in women. In particular, the significant Age × Gender interaction indicated that the gender gap in depressive symptoms reduced from young-old to old-old and reversed in very old age when men showed more depressive symptoms than women. Qualifying the paradox of well-being in aging, findings demonstrated that depressive symptoms increased from young-old to oldest-old and suggest that age-, pathology-, and mortality-related changes should be examined in concert to advance our understanding of in idual differences in depressive symptom trajectories in late life.
Location: United States of America
Location: United Kingdom of Great Britain and Northern Ireland
Location: United Kingdom of Great Britain and Northern Ireland
Location: Australia
No related grants have been discovered for Helena Chui.