Television, computer use and body mass index in Australian primary school children

Objective: To investigate relationships between children's body mass index (BMI) and parent reports of children's television and video game/computer habits, controlling for other potential risk factors for paediatric obesity.

Methods: Child BMI was calculated from measured height and weight collected in 1997 as part of a large, representative, cross-sectional study of children in Victoria, Australia. Parents reported the amount of time children watched television and used video games/computers, children's eating and activity habits, parental BMI and sociodemographic details.

Results: A total of 2862 children aged 5−13 years participated. Child mean BMI z-score was significantly related to television (F = 10.2₃, P < 0.001) but not video game/computer time (F = 2.2₃, P = 0.09), but accounted for only 1 and 0.2% of total BMI variance, respectively. When parental BMI, parental education, number of siblings, food intake, organized exercise and general activity level were included, television ceased to be independently significantly related to child BMI. Using adjusted logistic regression, the odds of being overweight and obese generally increased with increasing television viewing. No relationship was found for video game/computer use.
Conclusions: A small proportion of variance in child BMI was related to television, but not video game/computer time. This was far outweighed by the influence of other variables. Causal pathways are likely to be complex and interrelated.

Course websites, computer proficiency and need for achievement : implications for MBA student performance

Course websites have become a basic requirement for course promotion and delivery in many universities. This study explores the relationship between perceived usefulness of course websites and student performance in an accounting course within a Masters of Business Administration (MBA) programme. Data from 48 students were found to support several hypotheses. Specifically, the findings of the study indicate that there is a significant correlation between the perceived usefulness of course website features such as lecture notes, tutorial questions and solutions and the frequency of use or access by students of such course website features. Further, we found that the perceived usefulness of course websites was positively related to students’ computer proficiency, but not with the frequency with which students missed classes. The findings also indicate that students with high need for achievement achieved better performance scores, but there was no significant relationship between perceived usefulness of course website and performance. These findings have several implications for the design and development of course websites at post-graduate level, and for future research examining the link between information technology and accounting education.

Computer databases and the Jewish Museum of Australia : investigating the future to access the past

This thesis aims to analyse the needs of museums in terms of computer databases, examine the ways in which these databases can assist with cataloguing and museum operations in general, and survey current database programs available. The Jewish Museum of Australia is used as a pilot study to practically apply the issues discussed.

Comparing the physiological cost of step-powered video gaming, sedentary video gaming and self paced ambulatory activity in university students

Objectives: Methods for converting inactive video gaming to active video gaming have gained popularity in recent years. This study compared the physiological cost of a new peripheral device that used steps to power video gaming in an interactive manner against sedentary video gaming and self-paced ambulatory activity of university students (aged 19-29 years).
Methods: Nineteen adults (9 male, 10 female) performed six 10-minute activities, namely self-paced leisurely walking, self-paced brisk walking, self-paced jogging, two forms of sedentary video gaming, and step-powered video gaming. Activities were performed in a random order. Physiological cost during the activities was measured using Actiheart.
Results: Energy expenditure during step-powered video gaming (388.8 kcal.h-1) was comparable to the energy expended during brisk walking (373.8 kcal.h-1), and elicited a higher energy cost than sedentary video gaming (124.1 kcal.h-1) but a lower energy cost than jogging (694.5 kcal.h-1).
Conclusion: Overall, step-powered video gaming could be used as an entertaining and appealing tool to increase physical activity, though it should not be used as a complete substitute for traditional exercise, such as jogging.

The New Zealand gaming and betting survey : Chinese and Indian people's experience

Purpose – The purpose of this paper is to analyse attitudes, understanding of gambling and gambling related harm among Asians in New Zealand using secondary data from the New Zealand 2006/07 Gaming and Betting Attitudes Survey (GBAS).

Design/methodology/approach – This survey interviewed 1,973 nationwide randomly selected youths and adults (=18 years) using structured questionnaire. Chinese (N=113) and Indian (N=122) data were analysed separately to compare between them and with NZ Europeans (N=792). Descriptive analysis was carried out and was subsequently tested for significant correlations by weighted (p<0.01) and un-weighted (p<0.05) variables.

Findings – A higher proportion of Chinese males (66.8 percent) represented in the survey compared to Indian (43.0 percent) and NZ European (48.9 percent) where Chinese consisted of more youthful age structure. Chinese respondents were more likely to be in the lowest income bracket (NZ$10,000) compared to others. Among the ten gambling activities “casino table gambling” and “casino electronic machines” (slot-style machine) were most popular among the Chinese where Indians preferred “gambling/casino evening”. A significant proportion of Chinese were unwilling to refer family or friends to gambling help services despite believing that gambling does more harm than good. Pre-committed gambling sum was the most common harm minimising strategy suggested by participants. They believed education and consultation could deter youths from harmful gambling.

Research limitations/implications – This survey highlighted gambling behaviours and thoughts of the ethnic minority population in New Zealand. Study outcomes would be valuable in formulating ethnic specific preventative programme and may have policy implication.

Originality/value – There has been limited research on gambling behaviour of ethnic minorities in New Zealand. This paper fills some of the gaps.

Computer hacking and cyber terrorism: The real threats in the new millennium?

As the new millennium approaches, we are living in a society that is increasingly dependent upon information technology. However, whilst technology can deliver a number of benefits, it also introduces new vulnerabilities that can be exploited by persons with the necessary technical skills. Hackers represent a well-known threat in this respect and are responsible for a significant degree of disruption and damage to information systems. However, they are not the only criminal element that has to be taken into consideration. Evidence suggests that technology is increasingly seen as potential tool for terrorist organizations. This is leading to the emergence of a new threat in the form of 'cyber terrorists', who attack technological infrastructures such as the Internet in order to help further their cause. The paper discusses the problems posed by these groups and considers the nature of the responses necessary to preserve the future security of our society.

Comparative effects of TV watching, recreational computer use, and sedentary video game play on spontaneous energy intake in male children. A randomised crossover trial.

To compare the effects of three screen-based sedentary behaviours on acute energy intake (EI) in children. Normal-weight males aged 9-13 years participated in a randomised crossover trial conducted in a laboratory setting between November 2012 and February 2013 in Auckland, New Zealand. EI during an ad libitum meal was compared for three 1-hour conditions: (1) television (TV) watching, (2) sedentary video game (VG) play, and (3) recreational computer use. The primary endpoint was total EI from food and drink. Mixed regression models were used to evaluate the treatment conditions adjusting for age, BMI, and appetite at baseline. A total of 20 participants were randomised and all completed the three conditions. Total EI from food and drink in the TV, computer, and VG conditions was estimated at 820 (SE 73.15), 685 (SE 73.33), and 696 (SE 73.16) kcal, respectively, with EI being significantly greater in the TV versus computer condition (+135; P = 0.04), a trend towards greater intake in the TV versus VG condition (+124; P = 0.06), but not significantly different between the computer and VG conditions (-10; P = 0.87). TV watching was associated with greater EI compared with computer use, and a trend towards greater EI compared with VG play.

The ethics of hacking and computer abuse: Australian case studies

Organisations spend large sums of money to ensure that they are protected
against the risks associated with external threats. The perceived threats
against organisations are well known, and the losses can be quantifiable.
The perceived threat considered here is that associated with hackers. Much
is known about hackers, their rationale, and their ethical views. However,
it is harder to quantify what computer abuse is and what the associated
losses are. This chapter focuses on hackers, computer abuse, and ethical
issues.

Stability of television viewing and electronic game/computer use in a prospective cohort study of Australian children: relationship with body mass index

Background
While much cross-sectional data is available, there have been few longitudinal investigations of patterns of electronic media use in children. Further, the possibility of a bi-directional relationship between electronic media use and body mass index in children has not been considered. This study aimed to describe longitudinal patterns of television viewing and electronic game/computer use, and investigate relationships with body mass index (BMI).
Methods
This prospective cohort study was conducted in elementary schools in Victoria, Australia. 1278 children aged 5–10 years at baseline and 8–13 years at follow-up had their BMI calculated, from measured height and weight, and transformed to z-scores based on US 2000 growth data. Weight status (non-overweight, overweight and obese) was based on international BMI cut-off points. Weekly television viewing and electronic game/computer use were reported by parents, these were summed to generate total weekly screen time. Children were classified as meeting electronic media use guidelines if their total screen time was ≤14 hrs/wk.
Results
Electronic media use increased over the course of the study; 40% met guidelines at baseline but only 18% three years later. Television viewing and electronic game/computer use tracked moderately and total screen time was positively associated with adiposity cross-sectionally. While weaker relationships with adiposity were observed longitudinally, baseline z-BMI and weight status were positively associated with follow-up screen time and baseline screen time was positively associated with z-BMI and weight status at follow-up. Children who did not meet guidelines at baseline had significantly higher z-BMI and were more likely to be classified as overweight/obese at follow-up.

Conclusion
Electronic media use in Australian elementary school children is high, increases with age and tracks over time. There appears to be a bi-directional association suggesting that interventions targeting reductions in either screen time or adiposity may have a positive effect on both screen time and adiposity.

Process drama and digital games as text and action in virtual worlds : developing new literacies in school

This article explores the intersections between drama and digital gaming and the educational possibilities for literacy of both. The article draws on a model for the educational uses of digital gaming and three case studies from the Australian Research Council funded three and a half year project, Literacy in the digital world of the twenty first century: Learning from computer games. This model theorises the scope of the possibilities for literacy outcomes from the usage of computer games. The article describes how the model works, and then applies the model to drama education, specifying some new ways of thinking about the literacy outcomes from drama education. Process drama is theorised as the creation of text-in-action.