Showing papers by "Griffith University published in 2000"

Linking Balanced Scorecard Measures to Size and Market Factors: Impact on Organizational Performance

Abstract: This paper examines the relationship between organization size, product life‐cycle stage, market position, balanced scorecard (BSC) usage and organizational performance. Using financial and nonfinancial measures, the BSC appraises four dimensions of performance: customers, financial (or shareholders), learning and growth, and internal aspects. Based on a survey of 66 Australian manufacturing companies, the paper suggests that larger firms make more use of a BSC. In addition, firms that have a higher proportion of new products have a greater tendency to make use of measures related to new products. A firm's market position has not been found to be associated significantly with greater BSC usage. The paper also suggests that greater BSC usage is associated with improved performance, but this relationship does not depend significantly on organization size, product life cycle, or market position.

Tourism Destination Loyalty

Abstract: Despite the widespread acceptance that loyalty is a major driving force in successful companies, tourism destination loyalty has not been investigated. This study explores the application and usefulness of destination loyalty. Based on the brand loyalty literature, a number of loyalty measurements are suggested. The application of two measurement approaches to primary data on lifelong travel patterns by New Zealand residents indicate their validity. Through the collection and analysis of data on tourists’ destination loyalty, destinations will be able to determine the composition of its customers with respect to their destination loyalty. It will also facilitate a better forecasting and demand estimation.

Childbirth and the development of acute trauma symptoms: incidence and contributing factors.

Abstract: Background: Little is known about the relationship between women's birthing experiences and the development of trauma symptoms. This study aimed to determine the incidence of acute trauma symptoms and posttraumatic stress disorder in women as a result of their labor and birth experiences, and to identify factors that contributed to the women's psychological distress. Method: Using a prospective, longitudinal design, women in their last trimester of pregnancy were recruited from four public hospital antenatal clinics. Telephone interviews with 499 participants were conducted at 4 to 6 weeks postpartum to explore the medical and midwifery management of the birth, perceptions of intrapartum care, and the presence of trauma symptoms. Results: One in three women (33%) identified a traumatic birthing event and reported the presence of at least three trauma symptoms. Twenty-eight women (5.6%) met DSM-IV criteria for acute posttraumatic stress disorder. Antenatal variables did not contribute to the development of acute or chronic trauma symptoms. The level of obstetric intervention experienced during childbirth (β= 0.351, p < 0.0001)and the perception of inadequate intrapartum care (β= 0.319, p < 0.0001) during labor were consistently associated with the development of acute trauma symptoms. Conclusions: Posttraumatic stress disorder after childbirth is a poorly recognized phenomenon. Women who experienced both a high level of obstetric intervention and dissatisfaction with their intrapartum care were more likely to develop trauma symptoms than women who received a high level of obstetric intervention or women who perceived their care to be inadequate. These findings should prompt a serious review of intrusive obstetric intervention during labor and delivery, and the care provided to birthing women.

Childbirth and the development of acute trauma symptoms : incidence and contributing factors

Abstract: Background: Little is known about the relationship between women's birthing experiences and the development of trauma symptoms This study aimed to determine the incidence of acute trauma symptoms and posttraumatic stress disorder in women as a result of their labor and birth experiences, and to identify factors that contributed to the women's psychological distress Method: Using a prospective, longitudinal design, women in their last trimester of pregnancy were recruited from four public hospital antenatal clinics Telephone interviews with 499 participants were conducted at 4 to 6 weeks postpartum to explore the medical and midwifery management of the birth, perceptions of intrapartum care, and the presence of trauma symptoms Results: One in three women (33%) identified a traumatic birthing event and reported the presence of at least three trauma symptoms Twenty-eight women (56%) met DSM-IV criteria for acute posttraumatic stress disorder Antenatal variables did not contribute to the development of acute or chronic trauma symptoms The level of obstetric intervention experienced during childbirth (β= 0351, p < 00001)and the perception of inadequate intrapartum care (β= 0319, p < 00001) during labor were consistently associated with the development of acute trauma symptoms Conclusions: Posttraumatic stress disorder after childbirth is a poorly recognized phenomenon Women who experienced both a high level of obstetric intervention and dissatisfaction with their intrapartum care were more likely to develop trauma symptoms than women who received a high level of obstetric intervention or women who perceived their care to be inadequate These findings should prompt a serious review of intrusive obstetric intervention during labor and delivery, and the care provided to birthing women

Microbiology of petroleum reservoirs.

Abstract: Although the importance of bacterial activities in oil reservoirs was recognized a long time ago, our knowledge of the nature and diversity of bacteria growing in these ecosystems is still poor, and their metabolic activities in situ largely ignored. This paper reviews our current knowledge about these bacteria and emphasises the importance of the petrochemical and geochemical characteristics in understanding their presence in such environments.

Natural Selection and the Reinforcement of Mate Recognition

Abstract: Natural selection on mate recognition may often contribute to speciation, resulting in reproductive character displacement. Field populations of Drosophila serrata display reproductive character displacement in cuticular hydrocarbons when sympatric with Drosophila birchii. We exposed field sympatric and allopatric populations of D. serrata to experimental sympatry with D. birchii for nine generations. Cuticular hydrocarbons of field allopatric D. serrata populations evolved to resemble the field sympatric populations, whereas field sympatric D. serrata populations remained unchanged. Our experiment indicates that natural selection on mate recognition resulted in the field pattern of reproductive character displacement.

Food Webs and Container Habitats: The Natural History and Ecology of Phytotelmata

Abstract: The animal communities in plant-held water bodies, such as tree holes and pitcher plants, have become models for food-web studies. In this book, Professor Kitching introduces us to these fascinating miniature worlds and demonstrates how they can be used to tackle some of the major questions in community ecology. Based on thirty years' research in many parts of the world, this work presents much previously unpublished information, in addition to summarising over a hundred years of natural history observations by others. The book covers many aspects of the theory of food-web formation and maintenance presented with field-collected information on tree holes, bromeliads, pitcher plants, bamboo containers and the axils of fleshy plants. It is a unique introduction for the field naturalist and a stimulating source treatment for graduate students and professionals working in the fields of tropical and other forest ecology, as well as entomology.

Guided learning at work

Abstract: Reports and discusses the findings of an investigation that examined the efficacy of guided learning in the workplace. The investigation comprised the trialing of guided learning strategies and an analysis of the learning occurring in five workplaces over a period of six months. The guided learning strategies selected for investigation were questioning dialogues, the use of diagrams and analogies within an approach to workplace learning emphasising modelling and coaching. Throughout the investigation, critical incident interviews were conducted to identify the contributions to learning that had occurred during these periods, including those provided by the guided learning. As anticipated, it was found that participation in everyday work activities (the learning curriculum) was most valued and reported as making effective contributions to learning in the workplace. However, there was also correlation between reports of the frequency of guided learning interactions and their efficacy in resolving novel workplace tasks, and therefore learning. It is postulated that some of these learning outcomes could not have been secured by everyday participation in the workplace alone. Further, factors associated with the readiness of enterprise and those within it were identified as influencing the likely effectiveness of guided learning at work.

Mites and birds: diversity, parasitism and coevolution

Abstract: Ectoparasites play important roles in the lives of birds. Among these parasites, mites offer unique potential because of their extraordinary ecological and evolutionary diversity. However, the basic biology of most mites is poorly understood, and misleading extrapolations are sometimes made from better studied systems involving lice and fleas. Most importantly, not all bird-associated mites are parasitic; indeed, recent research suggests that some might even be beneficial. Here, we summarize what is known about the diversity of bird–mite relationships, and highlight how mites provide an ideal tool for the study of host life histories, sexual selection, immunocompetence and cospeciation.

Toxicology and risk assessment of freshwater cyanobacterial (blue-green algal) toxins in water.

Abstract: The adverse effects of cyanobacterial toxins were first reported as stock deaths at Lake Alexandrina, South Australia, in 1878. Since then, cyanobacterial poisonings in animals and humans have been widely reported around the world (Codd and Poon 1988). In fact, cattle and wildlife mortality from cyanobacterial poisonings is relatively common in many countries (Carmichael 1981). Animals that have been killed in large numbers include cattle, sheep, pigs, birds, and fish; small numbers of deaths of horses, dogs, rodents, amphibians, and invertebrates have also been recorded (Codd and Poon 1988). According to the compilations of Carmichael (1992a), approximately 85 animal poisoning incidents related to cyanobacterial blooms have been recorded around the world from 1878 to 1991.

Moth assemblages as indicators of environmental quality in remnants of upland Australian rain forest

Abstract: Summary 1. Despite great concern about the effects of fragmentation on biodiversity, quantitative studies are still scarce with respect to many major groups and important environments. Well-studied natural reference sites are few. 2. Extensive light trapping surveys for moths were thus carried out in both dry and wet seasons in nine remnants of complex notophyll vine forest on basalt on the Atherton Tablelands in tropical north Queensland, Australia. Three sites had never been cleared, three secondary sites had substantial regrowth, and three sites were newly cleared. 3. A total of 15 632 moths of 835 species was collected, counted and identified. These represent more than 17% of the named Australian fauna of our target families. 4. A principal components analysis (PCA) indicated clear discrimination among assemblages based on forest type. This discrimination did not differ qualitatively between seasons (although abundance levels of moths did) but the pattern was most evident in the smaller dry season samples. 5. Taxa, the relative abundance of which increased significantly with disturbance, were the Arctiinae, Amphipyrinae, Catocalinae, Hadeninae, Heliothinae, Hypeninae, Noctuinae, Plusiinae, Hermeniidae and Phycitinae. In contrast, a number of subfamilies showed a marked decrease in relative abundance with increased disturbance, namely Ennominae, Geometrinae, Larentiinae, Oenochrominae, Epipaschiinae, Lymantriidae and Anthelidae. 6. A weighted sum with importance values based on the eigenvalues associated with each of these taxa derived from the PCA is a powerful predictor set of forest quality. 7. These differential responses may be explained on the basis of broad known and expected host-plant patterns. The results show how moth assemblages are powerful indicators of forest disturbance, and should prompt parallel studies elsewhere in the world.

Triangulation - a methodological discussion.

Abstract: Triangulation is starting to emerge in tourism research as the ‘new’ method. However, there are many misconceptions of what triangulation is and what it can do. This paper discusses triangulation as a research method in the social sciences. It reflects on the origins of the term and what it currently denotes and what it should connote. It also covers the critiques of triangulation and eventually suggests how it should be used. Copyright © 2000 John Wiley & Sons, Ltd.

Empirical evidence for differential organ reductions during trans-oceanic bird flight

Abstract: Since the early 1960s it has been held that migrating birds deposit and use only fat as fuel during migratory flight, with the non–fat portion of the body remaining homeostatic. Recent evidence from field studies has shown large changes in organ sizes in fuelling birds, and theory on fuel use suggests protein may be a necessary fuel during flight. However, an absence of information on the body condition of migrants before and after a long flight has hampered understanding of the dynamics of organs during sustained flight. We studied body condition in a medium–sized shorebird, the great knot ( Calidris tenuirostris ), before and after a flight of 5400 km from Australia to China during northward migration. Not only did these birds show the expected large reduction in fat content after migration, there was also a decrease in lean tissue mass, with significant decreases in seven organs. The reduction in functional components is reflected in a lowering of the basal metabolic rate by 46%. Recent flight models have tried to separate the ‘flexible’ part of the body from the constant portion. Our results suggest that apart from brains and lungs no organs are homeostatic during long–distance flight. Such organ reductions may be a crucial adaptation for long–distance flight in birds.

Principles to guide the development of strategic environmental assessment methodology

Abstract: Despite much recent attention being given to strategic environmental assessment (SEA), there are considerable difficulties moving from a useful concept to widespread and enduring practice. This may be partly because the proponents of the policies, programmes and plans (PPPs) and the decision-makers remain unaware, or unconvinced, that SEA can add value to the existing processes in PPP development, assessment and decision-making. This paper attempts to respond to these difficulties by defining an overarching concept of SEA and a set of principles to assist in the evolution of effective methodologies. A broad range of SEA methodologies will be needed to adapt to the particular PPP-making context and these must be grafted onto the existing PPP process.

Optimal States and Almost Optimal Adaptive Measurements for Quantum Interferometry

Abstract: We derive the optimal N-photon two-mode input state for obtaining an estimate straight phi of the phase difference between two arms of an interferometer. For an optimal measurement [B. C. Sanders and G. J. Milburn, Phys. Rev. Lett. 75, 2944 (1995)], it yields a variance (Deltastraight phi)(2) approximately pi(2)/N2, compared to O(N-1) or O(N-1/2) for states considered by previous authors. Such a measurement cannot be realized by counting photons in the interferometer outputs. However, we introduce an adaptive measurement scheme that can be thus realized, and show that it yields a variance in straight phi very close to that from an optimal measurement.

Biological processes in running waters and their implications for the assessment of ecological integrity.

Abstract: Although biomonitoring approaches are being increasingly used in the measurement of stream and river health, critical assumptions about the nature of biological populations and communities that underpin them are often ignored. Many approaches based on pattern detection in plant and animal communities assume high temporal persistence in the absence of anthropogenic disturbances. However, this has been rarely tested with long-term data sets and there is evidence that this assumption is not true in some river systems. Biological processes, such as predation and recruitment, can account for considerable spatial and temporal variation in the structure of some stream communities. These processes may prevent the development of robust predictive models or indices based on pattern detection. Measurements of population or community attributes also are often used to infer ecosystem processes, yet the link between pattern and process has rarely been demonstrated. Many goals of river management relate to the maintenance of natural ecological processes and ecosystem function; direct measurement of these processes is, however, often neglected in assessment programs. Such measures are often sensitive to causal factors that are known to affect river health and it is possible to develop simple but powerful predictive models. Perhaps more importantly, should an impact to be detected, strategies for remediation are more obvious as the causal processes are generally better known. The ultimate success of biomonitoring approaches depends on how well we understand the biophysical processes that influence the structure and dynamics of stream and river systems, and the way they function.

Pollutant concentrations in road runoff: southeast queensland case study

Abstract: This paper examines the results of research into the pollutants in runoff from road pavement surfaces following natural rainfall events. Road runoff water quality was monitored at 21 sites centering around Brisbane, in southeast Queensland, Australia. The sites were selected according to traffic volumes, surrounding land use, pavement surface type, ease of access, and commercial vehicle percentage. Bridge sites were chosen for convenience of sample collection and minimized infrastructure modification. "First flush" grab samplers were permanently installed at each site to collect the first 20 l of runoff from one of the bridge drainage scuppers. The runoff samples were tested for a number of heavy metals, hydrocarbons, pesticides, and other physical characteristics. The observed results fall within the ranges of concentrations reported internationally and nationally but do not typically follow the 30,000 average annual daily traffic results reported in the United States. Traffic volumes have not been found to be the best indicator of road runoff pollutant concentrations. Interevent duration has been found to be a significant factor for pollutant concentrations. Sites incorporating exit lanes have recorded higher concentrations of acid-extractable copper and zinc, tending to support the hypothesis that brake pad and tire wear caused by rapid deceleration contributes to the concentrations of these metals in road runoff. Laser particle sizing has shown that a significant proportion of the sediment found in the runoff is smaller than 100 micrometers. However, these particulates do settle in water within 24 hours, under laboratory conditions. This may be due to the presence of heavy metals.

Role of lipophilicity in determining cellular uptake and antitumour activity of gold phosphine complexes.

Abstract: Purpose: The lipophilic cation [Au(I)(dppe)2]+ [where dppe is 1,2-bis(diphenylphosphino)ethane] has previously demonstrated potent in vitro antitumour activity. We wished to determine the physicochemical basis for the cellular uptake of this drug, as well as of analogues including the 1:2 adducts of Au(I) with 1,2-bis(di-n-pyridylphosphino)ethane (dnpype; n=2, 3 and 4), and to compare in vitro and in vivo antitumour activity. Methods and results: Logarithmic IC50 values for the CH-1 cell line bore a parabolic dependence on drug lipophilicity, as measured either by high-performance liquid chromatography or by n-octanol-water partition. Cellular uptake of drug, as measured by inductively coupled plasma mass spectrometry, varied by over three orders of magnitude over the series. Logarithmic uptake had a parabolic dependence on drug lipophilicity but a linear relationship to logarithmic IC50 values. Free drug concentrations were determined under the culture conditions and logarithmic free drug IC50 values and uptake rates were linearly related to lipophilicity. Uptake of drug in vivo in tissue from murine colon 38 tumours was approximately proportional to the dose administered. Host toxicity varied according to lipophilicity with the most selective compound having an intermediate value. This compound was also the most active of those tested in vivo, giving a growth delay of 9 days following daily intraperitoneal dosing (10 days) at 4 μmol kg−1 day−1. It was also significantly more active than another lipophilic cation, MKT-077. Conclusions: Alteration of lipophilicity of aromatic cationic antitumour drugs greatly affects cellular uptake and binding to plasma proteins. Changes in lipophilicity also affect host toxicity, and optimal lipophilicity may be a critical factor in the design of analogues with high antitumour activity.

Incidence, site, and nature of injuries in amateur rugby league over three consecutive seasons

Abstract: Objectives —To report the incidence, site, and nature of injuries in amateur rugby league over three consecutive seasons. Methods —Six hundred players registered with an amateur rugby league organisation were studied over three consecutive seasons. All injuries sustained during the amateur rugby league matches were recorded. Information recorded included the date and time of injury, name of injured player, anatomical site and nature of injury, and position of the player. Results —The incidence of injury was 160.6 per 1000 player-position game hours, with forwards having a significantly higher incidence of injury than backs (182.3 per 1000 v 142.0 per 1000, χ 2 = 14.60, df = 1, p 2 = 21.83, df = 8, p 2 = 17.98, df = 7, p 2 = 22.94, df = 1, p 2 = 162.29, df = 1, p Conclusions —The results show that muscular injuries and injuries to the head and neck are the most commonly sustained injuries in amateur rugby league. Furthermore, injuries are more often sustained in the latter stages of the season and during the second half of matches. These findings suggest that fatigue or accumulative microtrauma, or both, may contribute to injuries in amateur rugby league players.

The pros and cons of data analysis software for qualitative research.

Abstract: Purpose: To explore the use of computer-based qualitative data analysis software packages. Scope: The advantages and capabilities of qualitative data analysis software are described and concerns about their effects on methods are discussed. Findings: Advantages of using qualitative data analysis software include being freed from manual and clerical tasks, saving time, being able to deal with large amounts of qualitative data, having increased flexibility, and having improved validity and auditability of qualitative research. Concerns include increasingly deterministic and rigid processes, privileging of coding, and retrieval methods; reification of data, increased pressure on researchers to focus on volume and breadth rather than on depth and meaning, time and energy spent learning to use computer packages, increased commercialism, and distraction from the real work of analysis. Conclusions: We recommend that researchers consider the capabilities of the package, their own computer literacy and knowledge of the package, or the time required to gain these skills, and the suitability of the package for their research. The intelligence and integrity that a researcher brings to the research process must also be brought to the choice and use of tools and analytical processes. Researchers should be as critical of the methodological approaches to using qualitative data analysis software as they are about the fit between research question, methods, and research design.

Police responses to sexual assault complaints: the role of perpetrator/complainant intoxication.

Abstract: This study explored the impact of victim and perpetrator alcohol consumption on police officers' evaluations of an alleged sexual assault and their reported likelihood of charging the perpetrator. Two hundred and twelve police officers were presented with a vignette depicting an acquaintance rape in which the beverage consumption (beer, cola) of both the victim and perpetrator was systematically varied. Results indicated that the officers' perceptions of the complainant's intoxication level, as well as the gender of the officer, influenced officers' evaluations of the alleged sexual assault. The more intoxicated the complainant was perceived to be, the more negatively she was viewed. Female police officers evaluated the victim more favorably than male officers. The only factors related to the officers' likelihood of charging the perpetrator, however, involved their assessment of the complainant's credibility and their perception of the likelihood that the perpetrator would be found guilty in a court of law.