Recruitment of the infaunal bivalve Soletellina Alba (Lamark,1818) (Bivalvia: Psammobiidae) in response to different sediment types and water depths within the intermittently open Hopkins River estuary

Studies examining recruitment processes for soft-sediment macroinvertebrate fauna in intermittent estuaries are rare and most studies of active habitat selection have been tested in the laboratory rather than the field. The present field study examined whether recruitment of the infaunal bivalve Soletellina alba was influenced by water depth and sediment particle size in the intermittent Hopkins River estuary, southern Australia. The number of recruits in sediment trays differed between water depths, but active habitat selection was not evident across treatments of varying sediment particle size. The use of sediments with varying particle sizes also provided an opportunity to identify potential discontinuities in body-size distributions of recruits associated with varying habitat architecture. The length (mm) of recruits was converted to the same scale used to express sediment particle size (i.e. phi units: phi = − log2 of sediment particle size). The size of recruits differed across water depths, but did not differ across treatments with fine (phi = 3) versus coarse (phi = 1) sediment, and no relationships were apparent between bivalve size and sediments consisting of varying particle size. These patterns of recruitment do not correspond with the distribution of adult S. alba within the Hopkins River estuary. Previous sampling has shown that abundances of juvenile and adult S. alba are variable across time, site and water depth, but are often greater at the deeper water depth (1.05 m below the Australian Height Datum). However, recruitment during the present study was greatest at the shallower water depth (0.05 m below AHD), and the apparent absence of active habitat selection suggests that the distribution of adults is unlikely to be attributable to differences in recruitment associated with sediments of varying particle size.

Trends and guidelines in online privacy policy

Online privacy policies (OPP) are important mechanisms for informing online consumers about the level of information privacy protection afforded when visiting web sites. To date, societal mechanisms and technologies have been the focus of attempts to improve the quality and effectiveness of OPPs. We present findings from a longitudinal, empirical study of online privacy policies. Our research found that although online privacy policies have improved in quality and effectiveness since 2000, they still fall well short of the level of privacy assurance desired by consumers. This study analyses trends in OPPs over the two years of the study, identifying areas of deficiency and improvements, and offering a solution in the form of a detailed set of guidelines for organisational online privacy policy. Our study adds to existing theory in this area and, more immediately, will assist businesses concerned about the effect of privacy issues on consumer web usage.

Adding value to online privacy for consumers: remedying deficiences in online privacy policies with an holistic approach

We present findings from a longitudinal, empirical study of online privacy policies. Our research found that although online privacy policies have improved in quality and effectiveness since 2000, they still fall well short of the level of privacy assurance desired by consumers. This study has identified broad areas of deficiency in existing online privacy policies, and offers a solution in the form of an holistic framework for the development, factors and content of online privacy policies for organizations. Our study adds to existing theory in this area and, more immediately, will assist businesses concerned about the effect of privacy issues on consumer Web usage.

Process model to support data rich digital environments

This paper proposes a theoretical process model and the associated detailed information structure which reflects the complexity of information, stakeholder interaction and intellectual property concerns which are currently seen in the construction industry. This is being developed and tested against a field study renovation project. The field study project identifies information flows and interactions between stakeholders such as designers, project managers, clients, contractors, subcontractors and suppliers. The process model which is being established shows very high levels of complexity in dependencies and interdependencies between implicit and explicit information within the project design and construction teams. Without an understanding of these detailed and complex process interactions, proposals for the application of ICT to the construction industry will not reflect the requirements of those for whom they are being developed.

Environmental design : incorporating a rating tool into the design of commercial buildings

Environmental performance assessment or green building rating tools for commercial buildings are one of the more recent responses to encourage green solutions for commercial buildings. This paper discusses the initial stages of a research project that looks at the impact of a rating tool, such as Green Star, on design. There are numerous ways in which an architect can design commercial buildings, but environmental design solutions have consistently failed to become accepted practice. Therefore, how will this tool be incorporated into the building design process? Developed to assist the designer can the inclusion of a rating tool such as Green Star provide an effective framework to encourage the inclusion of environmental design strategies in commercial buildings? A field study, recording the design process of a commercial building, anticipates that a whole building assessment approach towards design, as proposed through the Green Star Rating Tool, will provide an effective framework to set and monitor design targets in order to optimise the environmental design goals in commercial buildings.

A process model to support design and construction

This research is focused on developing a highly detailed understanding of current organisational interactions and information flows leading to a definition of the process model for the environment into which information and communication technology (ICT) applications will be placed. The authors of this paper propose a theoretical process model and the associated detailed information structure which reflects the complexity of information, stakeholder interaction and intellectual property concerns which are currently seen in the construction industry. This is being developed and tested against a field study renovation project. The field study project identifies information flows and interactions between stakeholders such as designers, project managers, clients, contractors, subcontractors and suppliers. The process model which is being established shows very high levels of complexity in dependencies and interdependencies between implicit and explicit information within the project design and construction teams. Without an understanding of these detailed and complex process interactions, proposals for the application of ICT to the construction industry will not reflect the requirements of those for whom they are being developed.

The quality of the LMX relationship, the currency of exchange, and emotions at work

Leader-member exchange (LMX) is a theory of leadership that specifically focuses on the quality of the relationship between a manager and his/her subordinates. Previous research has shown the link between LMX quality and employee attitudes and behaviours at work. However, to the authors' knowledge, research is yet to specifically investigate the link between LMX quality and employee emotions. Also little understood are the social exchanges that lead to and maintain LMX quality ("currencies of exchange" in LMX theory). We introduce the notion of currency of exchange quality - whether the currency is present to a good enough extent or not (either in absence or excess) - and theoretically link this to employee emotions.
A field study was designed and conducted to investigate the links. The study supported the propositions that high LMX relationships with good enough currency quality resulted in more positive employee emotions; low LMX with an absence of currency quality resulted in more negative emotions; and low LMX with an excess of currency quality resulted in mixed emotions. An unexpected finding was that high LMX was also associated with excess currency quality and mixed emotions. The affective evaluations and discrete emotions experienced varied according to the currency and its quality.

Health-related quality of life of overweight and obese children

Context: The negative effects of childhood overweight and obesity on quality of life (QOL) have been shown in clinical samples but not yet in population-based community samples.

Objective: To determine relationships between weight and health-related QOL reported by parent-proxy and child self-report in a population sample of elementary school children.

Design, Setting, and Participants: Cross-sectional data collected in 2000 within the Health of Young Victorians Study, a longitudinal cohort study commenced in 1997. Individuals were recruited via a random 2-stage sampling design from primary schools in Victoria, Australia. Of the 1943 children in the original cohort, 1569 (80.8%) were resurveyed 3 years later at a mean age of 10.4 years.

Main Outcome Measures: Health-related QOL using the PedsQL 4.0 survey completed by both parent-proxy and by child self-report. Summary scores for children'S total, physical, and psychosocial health and subscale scores for emotional, social, and school functioning were compared by weight category based on International Obesity Task Force cut points.

Results: Of 1456 participants, 1099 (75.5%) children were classified as not overweight; 294 (20.2%) overweight; and 63 (4.3%) obese. Parent-proxy and child self-reported PedsQL scores decreased with increasing child weight. The parent-proxy total PedsQL mean (SD) score for children who were not overweight was 83.1 (12.5); overweight, 80.0 (13.6); and obese, 75.0 (14.5); P < .001. The respective child self-reported total PedsQL mean (SD) scores were 80.5 (12.2), 79.3 (12.8), and 74.0 (14.2); P < .001. At the subscale level, child and parent-proxy reported scores were similar, showing decreases in physical and social functioning for obese children compared with children who were not overweight (all P < .001). Decreases in emotional and school functioning scores by weight category were not significant.

Conclusion: The effects of child overweight and obesity on health-related QOL in this community-based sample were significant but smaller than in a clinical sample using the same measure.

Markers of inflammation in South Asian and European infants from birth to 2 years in Manchester, UK

Inflammatory markers, including serum C-reactive protein (CRP), are predictors of coronary heart disease (CHD) in adults. South Asians in the UK have higher rates of CHD in adulthood than national rates.We tested the hypotheses that South Asian infants would have higher serum concentrations of CRP and homocysteine than European infants up to 2 years of age and that higher infant weight is associated with elevation of inflammatory markers. Infants of South Asian and European origin were investigated in a mixed cross sectional-longitudinal cohort study. Mothers were recruited ante-natally from St Mary’s Hospital,Manchester by postal invitation and telephone call to non-responders. Infants with metabolic or congenital abnormalities, known syndromes or pre-maturity were excluded. Measurements were collected at birth and either 3, 6, 12 or 24 months. High sensitivity CRP and homocysteine were measured by an immulite immunoassay. We used mixed linear modelling to assess whether infant weight, ethnicity, length of follow-up or their interaction were associated with inflammatory makers in infants during follow-up. Data are presented on 306 infants (109 South Asian and 197 European). We found that European infants had higher serum CRP than South Asian infants during follow-up which was of borderline significance.There was no difference in serum homocysteine between ethnic groups during followup and no significant interaction between ethnicity and follow-up. Infant weight was significantly associated with CRP but not homocysteine. In this ongoing longitudinal study,we found little difference in inflammatory markers in infants from birth to 2 years despite markedly higher rates of CHD in South Asian than European adults. Life course exposure to risk factors may play a more dominant role in the development of CHD.

Development of a professional practice audit questionnaire for mental health nursing in Aotearoa/New Zealand

This paper reports the three-stage development of a professional practice audit questionnaire for mental health nursing in Aotearoa/New Zealand. In Study 1, clinical indicator statements (n = 99) generated from focus group data, which were considered to be unobservable in the nursing documentation in consumer case notes, were included in a three-round Delphi process. Consensus of ratings occurred for the mental health nurse and academic participants (n = 7) on 83 clinical indicator statements. In Study 2, the clinical indicator statements (n = 67) that met importance and consensus criteria were incorporated into a questionnaire, which was piloted at a New Zealand mental health service. The questionnaire was then modified for use in a national field study. In Study 3, the national field study, registered mental health nurses (n = 422) from 11 New Zealand District Health Board mental health services completed the questionnaire. Five categories of nursing practice were identified: professional and evidence-based practice; consumer focus and reflective practice; professional development and integration; ethically and legally safe practice; and culturally safe practice. Analyses revealed little difference in the perceptions of nurses from different backgrounds regarding the regularity of the nursing practices. Further research is needed to calibrate the scores on each clinical indicator statement with behaviour in clinical practice.

Neurodevelopmental effects of maternal nutritional status and exposure to methylmercury from eating fish during pregnancy

Fish contain nutrients that promote optimal brain growth and development but also contain methylmercury (MeHg) that can have toxic effects. The present study tested the hypothesis that the intake of selected nutrients in fish or measures of maternal nutritional status may represent important confounders when estimating the effects of prenatal methylmercury exposure on child development. The study took place in the Republic of Seychelles, an Indian Ocean archipelago where fish consumption is high. A longitudinal cohort study design was used. A total of 300 mothers were enrolled early in pregnancy. Nutrients considered to be important for brain development were measured during pregnancy along with prenatal MeHg exposure. The children were evaluated periodically to age 30 months. There were 229 children with complete outcome and covariate data for analysis. The primary endpoint was the Bayley Scales of Infant Development-II (BSID-II), administered at 9 and 30 months of age. Combinations of four secondary measures of infant cognition and memory were also given at 5, 9 and 25 months. Cohort mothers consumed an average of 537 g of fish (nine meals containing fish) per week. The average prenatal MeHg exposure was 5.9 ppm in maternal hair. The primary analysis examined the associations between MeHg, maternal nutritional measures and children's scores on the BSID-II and showed an adverse association between MeHg and the mean Psychomotor Developmental Index (PDI) score at 30 months. Secondary analyses of the association between the PDI and only MeHg alone or nutritional factors alone showed only a borderline significant association between MeHg and the PDI at 30 months and no associations with nutritional factors. One experimental measure at 5 months of age was positively associated with iodine status, but not prenatal MeHg exposure. These findings suggest a possible confounding role of maternal nutrition in studies examining associations between prenatal MeHg exposures and developmental outcomes in children.

Blended and online learning : student perceptions and performance

Purpose – The purpose of this paper is to improve educator knowledge of the antecedents and consequences of blended learning in higher education.

Design/methodology/approach – A longitudinal case study approach is adopted. Three case studies each involve tracking a student evaluations of teaching (SET) measure (willingness to recommend) and grade point average for three subjects from the same business discipline over six years. The cases involve comparison of: a business subject taught solely online; a business subject where experimentation in the blend of face-to-face teaching and learning is involved; and a business subject where face-to-face teaching is primarily used, and where in the most recent iteration online content supplements the learners' experiences.

Findings – The findings suggest that there are situations where integrated use of blended learning involving face-to-face teaching, digital media and digital communication with simple navigation between the content items leads to positive student perceptions. This is in contrast to negative student perceptions in the situation where learners must navigate in online learning, and where there is little or no face-to-face instruction. While not examined in detail, nor part of the research question, it is not surprising to find no relationship between learning mode and grade point averages is evidenced.

Research limitations/implications – The effects of prior computer literacy and language proficiency across the students used in this study, and potential demographic and experiential differences between on-campus and off-campus students are not controlled for. Additionally, only three business subjects are investigated and it is recognised that there is a need for a broader study. Finally, with response levels to the university-controlled SET that typically range between 20-43 per cent for these large subjects, there is possible non-response bias that it was not possible to counter over the six years involved.

Practical implications – The findings in this study suggest that while blended learning offers many benefits to higher education institutions and learners alike, care needs to be taken in the manner in which such approaches are implemented in light of possible negative learner perceptions where a less traditional approach is taken.

Originality/value – A major contribution of this study is the fact that experimentation has taken place in terms of the degree of face-to-face and online learning that have been blended in at least one subject (case study two), and the fact that the SET for this subject are compared, longitudinally, with two other subjects which lie on either side of this subject in terms of the extent of online and face-to-face teaching and learning employed – 100 per cent online in case study one and almost 100 per cent face-to-face in case study three.

Internationalization and alliance formation : evidence from Turkish SMEs

This study explores the issue of internationalization through forming alliances with foreign capital in the small business sector in Turkey. Using a sample of 257 SMEs from this emerging market economy, collected via a field study, it finds that Turkish SMEs would like to form alliances with foreign capital for expanding their production capacity and accessing to world markets. Multivariate multinomial logit models are employed to analyse the survey data econometrically. Size-specific, sector-specific and management-specific factors are identified in the alliance motivation. The `market' and `finance' aspects of alliances prevail in the multivariate analysis with significant implications. There is also evidence that some conditional relationships offered by multivariate analysis differ from unconditional associations found in the survey, which implies that alliance motivation is partly a product of multidimensional decision-making process on behalf of SMEs.

Educating generationE in Australasia : US lessons, New Zealand experience

Australasian countries have huge numbers of young entrepreneurs. Yet the state of entrepreneurship education in this region has yet to come to grips with their needs. Elsewhere in the world, the growth and development in the curricula and programs devoted to raising the level of enterprise and new venture creation has been remarkable. The researcher undertook field study in North America and Europe to examine interdisciplinary initiatives that take the study of entrepreneurship and personal enterprise out of the Business School, integrate it across the campus and make it available to the widest range of students. The paper first describes GenerationE in Australasian countries and in New Zealand. It then classifies and categorises best-practice models of enterprise education, focusing especially on non-business entrepreneurship and university-wide enterprise requirements. The paper summarises these data and formulates “models of enterprise education” outside the business school environment. It offers generalisations that may prove helpful to educationalists and government policy planners about how to accelerate the development of personal enterprise within individuals and thereby to increase the supply of young people who launch their own businesses and social enterprises. The goal of this paper is to help universities in our region and elsewhere move toward infusing entrepreneurship throughout the curriculum.

Educating generationE in Australasia : US lessons, New Zealand experience

Australasian countries have huge numbers of young entrepreneurs. Yet the state of entrepreneurship education in this region has yet to come to grips with their needs. Elsewhere in the world, the growth and development in the curricula and programs devoted to raising the level of enterprise and new venture creation has been remarkable. The researcher undertook field study in North America and Europe to examine inter-disciplinary initiatives that take the study of entrepreneurship and personal enterprise out of the Business School, integrate it across the campus and make it available to the widest range of students. The paper first describes GenerationE in Australasian countries and in New Zealand. It then classifies and categorises best-practice models of enterprise education, focussing especially on non-business entrepreneurship and university-wide enterprise requirements. The paper summarises these data and formulates “models of enterprise education” outside the business school environment. It offers generalisations that may prove helpful to educationalists and government policy planners about how to accelerate the development of personal enterprise within individuals and thereby to increase the supply of young people who launch their own businesses and social enterprises. The goal of this paper is to help universities in our region and elsewhere move toward infusing entrepreneurship throughout the curriculum.