A reflexive capability model for sustainable e-business environments in construction supply chains

Despite the increasing significance of e-business worldwide and construction market leaders developing innovative e-business applications, the widespread uptake in the Australian construction industry is lagging. There has been considerable literature related to e-business adoption focusing on drivers and barriers to adoption. However, there has not been an investigation that has applied fundamental supply chain theory concepts. In this paper a reflexive capability model for the individual firm in relation to e-business is developed which relies upon merging economic and social practices through an industrial organization economic theoretical lens and social science theories of communication. The reflexive
capability model proposed within this paper describes a framework for theorization of the different degrees of e-business adoption exhibited by individual firm’s and accounts for social-cultural, organisational-structural, communicative and economic (market and supply
chain) barriers, influences and pressures to adopt e-business.The model is proposed for the construction supply chain to enable awareness, engagement and realization of e-business technology and achieve long term construction e-business sustainability.

Providing sporting experiences for children in Out of School Hours Care (OSHC) environments : sport and physical activity participation and intentions

The Out of School Hours Sports Program (OSHSP) aimed to provide structured sporting experiences and community links to local clubs for children in Out of School Hours Care (OSHC). The OSHSP involved 17 State Sporting Associations (SSAs), 71 OSHC Services and local club representatives. This study explored children's participation in sport in and outside the OSHSP and parental intention for participation in sport in and outside the OSHSP. Surveys were received from 211 children (76 girls and 125 boys; mean age = 7.9 years, S.D. = 1.7) and their parents/guardians (37.9% response rate). OSHC is characterised by freedom of choice of participation in activities by children. The OSHSP was used to provide an opportunity to choose to participate in a sport while attending OSHC. At the OSHC Services surveyed, between 7.1 and 100% of the children attending OSHC chose to participate in the OSHSP. Of those children who chose to participate, 85% were participating in a sport, usually a different sport to the one offered in the OSHSP. This participation was largely club-based (49.8%), most often once a week for training and competition (55.2%). Parental intentions for children's participation in the OSHSP sports varied with respect to the number of years attending the OSHSP, where children played and trained in their main sport, and how many times a week a child played and trained in their main sport. Older children tended to play and train for sport more times per week and had been attending the OSHC for more years than younger children.

Online learning environments : same place; different demographic space?

This paper presents a large scale, quantitative investigation of the impact of demographic differences on the student experience of using an online learning environment (OLE). Female respondents generally gave higher ratings than males, and gave significantly higher ratings in both importance and satisfaction to a group of OLE elements related to online interaction and community. Postgraduate respondents generally gave lower satisfaction ratings than undergraduate students, though significant differences were few. Results on the basis of mode of enrolment were mixed. The discovery of significant differences between demographic groups highlights the importance of up-to-date and on-going research-based surveys of student perceptions of the OLE. The finding that elements of the institutional OLE are not universally perceived the same way by all students groups also challenges the value of standard, one-size-fits-all institutional policies and templates relating to the use of the OLE.

Do European starlings prefer light environments containing UV?

Many captive birds are kept in artificial lighting that is typically deficient in ultraviolet (UV) wavelengths. Most birds can perceive the range of light that humans see but also have an additional retinal cone type that is tuned to UV wavelengths. Consequently, artificial lighting may be detrimental as it might limit the functionality of their vision. We examined the preferences of European starlings, Sturnus vulgaris, for various artificial light environments. In our first experiment, groups of starlings showed a preference for environments that contained UV (UV+) over those where UV wavelengths had been removed (UV -). This preference was not affected by the sex of the individuals within the group or, as shown in a later experiment, by whether the birds had been previously housed in UV+ or UV - conditions. In contrast, individual starlings showed no preference for UV+ over UV - environments, although the power of our test was low. In a subsequent experiment, starling groups preferred the higher of two light intensities that were presented; however, equalizing the overall quantal flux between UV+ and UV - extinguished any preference for UV+ over UV -. The group preference for UV+ conditions in the first experiment may therefore have resulted from a preference for brighter conditions rather than a specific preference for UV. However, equalizing the quantal flux may not equalize perceived brightness, because it is not known how birds' visual systems weight input from each cone type. We conclude that, for nonbreeding, group-housed captive starlings, there is no positive evidence of a preference for the presence of UV as a specific wavelength. (C) 2002 The Association for the Study of Animal Behaviour. Published by Elsevier Science Ltd. All rights reserved.

Family food environments as determinants of children's eating : implications for obesity prevention

The prevalence of childhood obesity is escalating rapidly and it considered to be a major public health problem. Diet is a recognised precursor of fatness, and current evidence supports the premise that in Westernised countries, the dietary intakes of children are likely to be important in obesity genesis. However, we have a relatively poor understanding of the environments in which a child’s eating is learnt and maintained. Much of the existing work in this area is based on small-scale or experimental studies, or has been derived from homogeneous populations within the USA. Despite these limitations, there is evidence that aspects of the child’s family environment are likely to be important in determining obesity risk in children. This thesis examines the impact of the family food environment on a child’s eating through two related studies. The first study, titled the Children and Family Eating (CAFÉ) study comprised three phases. Phase one involved qualitative interviews with 17 parents of 5-6 year-old children to explore parental perceptions regarding those factors in a child’s environment believed to influence the development of their child’s eating habits. These interviews were used to inform the development of quantitative measures of the family food environment. The second phase involved the development of a Food Frequency Questionnaire (FFQ) to assess dietary intake in 5-6 year-olds. The FFQ was informed by analysis of 1995 Australian National Nutrition Survey data. In the final phase the relationships between dietary intakes of 5-6 year-old children, and potential predictors of dietary intake were examined in a cross-sectional study of 560 families. Predictors included measures of: parental perceptions of the adequacy of their child’s diet; food availability and accessibility; child-feeding; the opportunities for parental modelling of food intake; a child’s television exposure; maternal Body Mass Index; and maternal education. Analysis of the CAFÉ data provides unique information regarding the relationships between a child’s family food environment and their food consumption. Models developed for a range of dietary outcomes considered to be predictive of increased risk for obesity, including total energy and fat intakes, vegetable variety, vegetable consumption, and high-energy (non-dairy) fluid consumption, explained between 11 and 20 percent of the variance in dietary intake. Two aspects of the family food environment, parental perception of a child’s dietary adequacy, and the total minutes of television viewed per day, were frequently found to be predictive of dietary outcomes likely to promote fatness in these children. The second study, titled the Parent Education and Support (PEAS) Feeding Intervention Study, was a prospective pre/post non-randomised intervention trial that assessed the impact of a feeding intervention to 240 first-time mothers of one-year-old children. This intervention focused on one aspect of the family food environment, child-feeding, which has been proposed as influential in the development of obesogenic eating behaviours. In this study, Maternal and Child Health Nurses (MCHNs), using a ‘Division of Responsibility’ model of feeding, taught parents to provide nutritious food at regular intervals and to let children decide if to eat and how much to eat. Thus parents were encourages to food their child without exerting pressure, or employing coercion or rewards (controlling behaviours). The aim was to influence parental attitudes and beliefs regarding child-feeding. Through the use of these feeding techniques, this intervention also aimed to increase the variety of fruits and vegetables a child consumed by teaching parents to persist with offering these foods, over the year of the intervention, in non-emotive environments. Fruits and vegetables were chosen in this intervention because they are likely to be protective in the development of obesity. Analysis of the PEAS data suggests that this low-level feeding intervention, delivered through existing Maternal and Child Health services, was modestly effective in changing parental attitudes and beliefs regarding the feeding of young children. Further, the validity of fruits offered to intervention group children increased. This thesis expands the existing knowledge base by providing a comprehensive analysis of the relative impact of aspects of the family environment on dietary intakes of 5-6 year-olds. Further, the analysis of a feeding intervention in first-time parents provides important insights regarding the potential to influence child-feeding and the impact this may have on the promotion of eating behaviours protective against obesity.

On-campus students' learning in asynchronous environments

Asynchronous online discussions have the potential to improve learning in universities. This thesis reports an investigation into the ways in which undergraduates learned in online discussions when they were included within their face-to-face courses. Taking a student perspective, four case studies describe and explain the approaches to learning that were used by business undergraduates in online discussions, and examine the influence of the computer-mediated conferencing (CMC) medium and curriculum design on student learning. The investigation took a qualitative approach where case studies were developed from multiple data sources. In each of the cases, a description of the setting of the online discussions introduced the learning environment. Further details of student learning behaviours in the online discussions were provided by an analysis of the systems data and a content analysis of the online discussion transcripts. In depth interpretation of interview data added student perspectives on the impact of CMC characteristics, the curriculum or learning design and the relationship between the online discussions and face-to-face classes. A comparative cross case analysis of the findings of the four cases identified and discussed general themes and broad principles arising from the cases. The campus-based students acknowledged that online discussions helped them to learn and their message postings evidenced deep approaches to learning. The students recognised the value for learning of the text based nature of the CMC environment but peer interaction was more difficult to achieve. Asynchronicity created time flexibility and time for reflection but it also presented time management problems for many undergraduates. Assessment was the most influential aspect of the curriculum design. The cases also identified the importance of a dialogical activity and the absence of the teacher from the online discussions was not problematic. The research identified new perspectives on the relationship between online discussions and face-to-face classes. Students regarded these two media as complementary rather than oppositional and affirmed the importance of pedagogic connections between them. A teaching and learning framework for online discussions was developed from these perspectives. The significance of this study lies in improved knowledge of student learning processes in online discussions in blended learning environments. The cases indicated the potential value of the CMC environment for constructivist philosophies and affirm the significant role of curriculum design with new technologies. Findings relating to the complementary nature of online and face to face discussions provided a platform for building a teaching and learning framework for blended environments which can be used to inform and improve pedagogical design, teacher expertise and student learning outcomes in asynchronous online discussions.

Insider research, the process and practice : issues arising from professionals conducting research within their own working environments

This thesis explores the chaotic, dynamic, ambiguous, complex and confusing world of the insider researcher. The proliferating species of insider researcher is common in public sector organisations and is particularly prevalent among post-graduate students who have combined study with work. Insider researchers range from the in-house researcher employed to conduct research to those who are conducting research in addition to their normal duties. This thesis, through five illustrative case-studies, discusses, reflects upon, explains, and clarifies the possibilities, limitations and the issues arising from a consideration of the practice of professionals conducting research in the large government education system in Victoria. The central focus of this thesis, that of exploring issues arising from professionals conducting research in their own working environments, has an importance that hitherto has had little direct recognition in the qualitative education research literature. And yet the practice of insider research is common and has a potentially large impact on the nature of the decision making process in public sector organisations. This relative invisibility in the social research literature of a discussion of issues relating to insider research demands to be made more visible. It is both useful and necessary to explore the particular possibilities, conditions and challenges of insiders conducting research in public organisations as the practice of insider research contines to grow. This thesis adds to the literature by locating insider research in a discussion of the wider soial context of ideology, culture, relationships, politics, language and meaning, and the decision-making process.

Using online environments to promote assessment as a learning enhancement process

The 21st century presents new challenges relating to the need for assessment to be more innovative, more responsive to students' needs, and more relevant and authentic. The characteristics of good assessment are well known and resources abound to assist academic staff to change their practices. Yet, at a time when the imperative for reconsidering practices has never been greater, it appears to be very difficult to bring about and maintain substantive change in assessment. This paper presents case studies that illustrate the way some academic staff have responded to the challenges. In particular, how the online environment can enhance learning through formative assessment is illustrated with four case studies. The paper outlines specific challenges faced in each case and  discusses issues that arose during development and delivery. It concludes by identifying some of the factors that helped to facilitate changes in assessment practices in these specific cases.