Students’ Willingness for Future Volunteering in Hong Kong

Volunteering is playing an increasingly bigger role in social services and schools both in Western settings and in the Hong Kong Chinese context. The demand for volunteers in the sector of social services is continually increasing (Sherr 2008). Little is known about the willingness of secondary school students to participate in future volunteering in Hong Kong. This study attempts to explore the phenomenon of youth volunteering through the theory of planned behavior and Personal and Social Responsibility, and identifies prior experience in community service as a main predictor of the willingness of the students to participate in future volunteering. A total of 1046 students from seven secondary schools in Hong Kong completed a structured questionnaire. Social workers, teachers, and volunteer managers could benefit from this study as they could foster students’ willingness to volunteer after graduation by actively engaging them in community service programs early on in a specific time in their life.     

'Your friends don't understand': Invisibility and unmet need in the lives of 'young carers'

This paper is based on a study of the experiences of people identified as ‘young carers’, commissioned by the National Assembly for Wales as part of a wider review of carers’ needs and services. Following a brief review of some of the previous research in this area, the paper reports key findings of the research, using the words of children and young people as much as possible. It then goes on to explore some of the wider implications of this and other research for the identification and support of ‘young carers’ and their families, and for the understanding of the needs and wishes of children and young people so defined. The paper concludes with an alternative definition of a ‘young carer’ and with some recommendations for professional practice, suggesting that the role of social work is crucial in this area of service.     

City Spaces and Human Relations in Hong Kong's Mass Transit Railway: From Circulation to Everyday Life

Subways have experienced a tremendous variety of development, securing their positions within cities and producing unique spaces whose characteristics have influenced human relations. This study focuses on the relationships between subways and the cities, spaces, and human relationships that surround them. It explores the connections between subways and the aforementioned elements (city, space, and human relations) to provide insight into how best to pursue improvements. The Hong Kong Mass Transit Railway's fame as a representational subway on a global scale makes it the ideal choice for a case study.     

$$$$-labeling number of Cartesian product of path and cycle

For positive numbers \(j\) and \(k\), an \(L(j,k)\)-labeling \(f\) of \(G\) is an assignment of numbers to vertices of \(G\) such that \(|f(u)-f(v)|\ge j\) if \(d(u,v)=1\), and \(|f(u)-f(v)|\ge k\) if \(d(u,v)=2\). The span of \(f\) is the difference between the maximum and the minimum numbers assigned by \(f\). The \(L(j,k)\)-labeling number of \(G\), denoted by \(\lambda _{j,k}(G)\), is the minimum span over all \(L(j,k)\)-labelings of \(G\). In this article, we completely determine the \(L(j,k)\)-labeling number (\(2j\le k\)) of the Cartesian product of path and cycle.     

Test for the existence of finite moments via bootstrap

This paper develops a bootstrap hypothesis test for the existence of finite moments of a random variable, which is nonparametric and applicable to both independent and dependent data. The test is based on a property in bootstrap asymptotic theory, in which the m out of n bootstrap sample mean is asymptotically normal when the variance of the observations is finite. Consistency of the test is established. Monte Carlo simulations are conducted to illustrate the finite sample performance and compare it with alternative methods available in the literature. Applications to financial data are performed for illustration.     

Evaluating the Effectiveness and Efficiency of Hong Kong Welfare Programmes in Reducing Child Poverty

This paper examines the effectiveness and efficiency of welfare programmes that are relevant to child poverty reduction in Hong Kong. We employ data from a cross‐sectional survey of a representative sample of families, conducted in 2015 through face‐to‐face interviews. Our results indicate that all four welfare programmes were inadequate in alleviating child poverty. This was either due to the deep poverty gap to be filled or high rates of exclusion error. Most programmes are also inefficient because of inclusion error. We conclude by suggesting some policy implications for the welfare programmes.     

Doubly adaptive biased coin designs with delayed responses

In clinical studies, patients are usually accrued sequentially. Response‐adaptive designs are then useful tools for assigning treatments to incoming patients as a function of the treatment responses observed thus far. In this regard, doubly adaptive biased coin designs have advantageous properties under the assumption that their responses can be obtained immediately after testing. However, it is a common occurrence that responses are observed only after a certain period of time. The authors examine the effect of delayed responses on doubly adaptive biased coin designs and derive some of their asymptotic properties. It turns out that these designs are relatively insensitive to delayed responses under widely satisfied conditions. This is illustrated with a simulation study.     

On Mixture Double Autoregressive Time Series Models

This article proposes a mixture double autoregressive model by introducing the flexibility of mixture models to the double autoregressive model, a novel conditional heteroscedastic model recently proposed in the literature. To make it more flexible, the mixing proportions are further assumed to be time varying, and probabilistic properties including strict stationarity and higher order moments are derived. Inference tools including the maximum likelihood estimation, an expectation–maximization (EM) algorithm for searching the estimator and an information criterion for model selection are carefully studied for the logistic mixture double autoregressive model, which has two components and is encountered more frequently in practice. Monte Carlo experiments give further support to the new models, and the analysis of an empirical example is also reported.     

Predicting the popularity of tweets using internal and external knowledge: an empirical Bayes type approach

AStA Advances in Statistical Analysis - The problem of tweet popularity prediction, or forecasting the total number of retweets stemming from an ancestral tweet, has attracted considerable interest...     

Interactive association between negative emotion regulation and savoring is linked to anxiety symptoms among college students

Abstract

Objective: This study tested the interactive relationships between college students’ perceived capability of regulating negative emotions and savoring positive emotions on mental health outcomes, including anxiety and depressive symptoms. Participants: Participants were healthy undergraduates (n?=?167) recruited from two universities in Hong Kong. Methods: Students completed four scales assessing their perceived capability of using strategies to regulate negative and positive emotions and their anxiety and depressive symptoms. Results: Findings revealed that both anxiety and depressive symptoms were negatively linked to perceived capabilities of regulating negative emotions and savoring positive emotions. Furthermore, regulating negative emotions interacted with savoring positive emotions to predict anxiety symptoms. Conclusions: The need to simultaneously perform negative and positive emotion regulation is highlighted. The results suggest the priority of regulating negative emotions over savoring positive emotions in alleviating anxiety symptoms. Nevertheless, enhancing positive emotion shows greater benefits for those who are less adept at regulating negative emotions.