Dimensions of Problem Gambling Behavior Associated with Purchasing Sports Lottery

The purpose of this study was to identify and examine the dimensions of problem gambling behaviors associated with purchasing sports lottery in China. This was accomplished through the development and validation of the Scale of Assessing Problem Gambling (SAPG). The SAPG was initially developed through a comprehensive qualitative research process. Research participants (N = 4,982) were Chinese residents who had purchased sports lottery tickets, who responded to a survey packet, representing a response rate of 91.4%. Data were split into two halves, one for conducting an EFA and the other for a CFA. A five-factor model with 19 items (Social Consequence, Financial Consequence, Harmful Behavior, Compulsive Disorder, and Depression Sign) showed good measurement properties to assess problem gambling of sports lottery consumers in China, including good fit to the data (RMSEA = 0.050, TLI = 0.978, and CFI = 0.922), convergent and discriminate validity, and reliability. Regression analyses revealed that except for Depression Sign, the SAPG factors were significantly (P < 0.05) predictive of purchase behaviors of sports lottery. This study represents an initial effort to understand the dimensions of problem gambling associated with Chinese sports lottery. The developed scale may be adopted by researchers and practitioners to examine problem gambling behaviors and develop effective prevention and intervention procedures based on tangible evidence.     

A Time‐Dependent Risk Assessment for Broken Compact Fluorescent Lamps

Environmental Protection Agency (EPA) ambient air quality guidelines are meant to limit long‐term exposures of toxins to safe levels. Unfortunately, there is little guidance for what constitutes a safe level from a one‐time (or very infrequent) short exposure(s). In the case of mercury, a review of the derivation of the EPA ambient air quality standard shows that it implicitly assumes a tissue burden model. The time dependence of the tissue burden is commonly described in terms of a half‐life, a modeling assumption that presumes that the decline in the tissue burden after a single exposure can be approximately described as an exponential decay. In this article, we use a simple exponential tissue burden model to derive a time‐dependent no observable adverse effect level (NOAEL) for mercury concentrations in air. The model predicts that tissue body burden will asymptotically approach the EPA air quality level for long exposure times, and reach workplace standard levels for exposures of a few hours. The model was used along with data on mercury levels from experimental work done by the Maine Department of Environmental Protection to evaluate the risks from a broken compact fluorescent lamp in a residential setting. Mercury levels approached the NOAEL only when the debris was left in an almost sealed room. Normal common‐sense cleaning measures: removal of debris to an outside area, and ventilation of the room for several minutes, reduced exposures to less than 1% of the NOAEL.     

Online bin packing of fragile objects with application in cellular networks

We study a specific bin packing problem which arises from the channel assignment problems in cellular networks. In cellular communications, frequency channels are some limited resource which may need to share by various users. However, in order to avoid signal interference among users, a user needs to specify to share the channel with at most how many other users, depending on the user’s application. Under this setting, the problem of minimizing the total channels used to support all users can be modeled as a specific bin packing problem as follows: Given a set of items, each with two attributes, weight and fragility. We need to pack the items into bins such that, for each bin, the sum of weight in the bin must be at most the smallest fragility of all the items packed into the bin. The goal is to minimize the total number of bins (i.e., the channels in the cellular network) used. We consider the on-line version of this problem, where items arrive one by one. The next item arrives only after the current item has been packed, and the decision cannot be changed. We show that the asymptotic competitive ratio is at least 2. We also consider the case where the ratio of maximum fragility and minimum fragility is bounded by a constant. In this case, we present a class of online algorithms with asymptotic competitive ratio at most of 1/4+3r/2, for any r>1. A preliminary version of this paper appeared in Proc. of Workshop on Internet and Network Economics (WINE’05, pp. 564–573). The research of W.-T.C. was supported in part by Hong Kong RGC grant HKU5172/03E. The research of F.Y.-L.C. was supported in part by Hong Kong RGC Grant HKU7142/03E. The research of D.Y. was supported by NSFC (10601048). The research of G.Z. was supported in part by NSFC (60573020).     

Tracking state trends in environmental public opinion

Trends in state-level public opinion on the environment within the U.S. are examined, using data from the General Social Survey (GSS) from 1976 to 2008. Multilevel Regression and Post-Stratification (MRP) approach estimates public support for environmental spending at the U.S. state-level over three decades. This allows for an analysis of inter-state homogeneity of environmental public opinion, over the latter half of the twenty century. The findings indicate state-level trends mirror those at the national-level, but state-level public opinion is becoming more analogous over time.     

Family Phone Therapy in University Counseling and Psychological Service Centers: A Family Systems Approach

Abstract

This paper offers family phone therapy as a method for student mental health practitioners to overcome the obstacle of geographic distance between students and their families when family therapy is the treatment of choice. The issues of confidentiality, triangulation, diversionary conversation, and mixed communication, which present unique concerns when engaging in family phone therapy, are introduced and strategies to deal with them are discussed. A case example is presented to demonstrate the utility of family phone therapy in dealing with problems that students who use university mental health services can typically experience. Finally, implications of dealing with students' developmental tasks from an individual or family systems perspective are discussed.     

Social movement as civic education: communication activities and understanding of civil disobedience in the Umbrella Movement

Occupy Central, which would later evolve into the Umbrella Movement, was conceived as a civil disobedience campaign when it was first proposed in early 2013. Although the history of civil disobedience in Hong Kong arguably spans decades, the concept was seldom discussed in the public arena, and the practice was not well established in the society's repertoire of contentious actions. The years 2013 and 2014 thus constituted a “critical discourse moment” in which the concept of civil disobedience was intensively discussed and debated. This study seeks to determine whether the Occupy Central campaign and the Umbrella Movement had an educational function that led to increased levels of the public's understanding of civil disobedience. The analysis of the responses to two surveys conducted in September 2013 and October 2014 showed that the public's understanding of civil disobedience increased substantially over the year. After the Umbrella Movement started, attitudinal support for and actual participation in the movement, the political use of social media, and discussions with disagreeing others significantly predicted the understanding of civil disobedience. The theoretical and social implications of the findings are discussed.     

Why planners don't

This paper deals with a study which the authors undertook of the planning function in five major U.S. corporations. None of the five engaged in true strategic planning. The authors advance explanations for this relatively low level of planning activity, based on the environmental, organizational, and managerial characteristics of the firms. The authors urge the rapid development of a more sophisticated contingency theory of corporate planning to facilitate practice, teaching, and research.     

Does the marriage market sex ratio affect parental sex selection? Evidence from the Chinese census

Recent increases in the (male/female) sex ratio at birth in eastern Asia are thought to be associated with a preference for sons and to result from parental sex selection. However, males are less likely to marry and to have offspring as the ratio increases, and that decreases the expected number of grandchildren. Using data from the 2000 Chinese census, we test whether the sex ratio in the marriage market has an effect on the gender of subsequent births and hence on the sex ratio of the birth cohort. The slow population growth caused by the Great Famine in the early 1960s and the quick recovery that followed produced major changes in the sex ratio for those of marriageable age two decades later. We estimate that an increase of 1 % in the number of marriageable males relative to females, the marriage market sex ratio, would decrease the probability of having a son by 0.02 percentage points. That implies that the Great Famine, which occurred around 1960, led to an increase in the early 1980s of 5.8 extra male births per 100 females.