2,083 research outputs found
Canyons and Ice: The Wilderness Travel of Dick Griffith
No full textDick Griffith journeyed across Alaska, Canada, Mexico, and the American West. According to Jon Krakauer, "Griffith is simply afflicted with an irresistible inclination to attempt what others say can't be done. When asked what possesses a man to repeatedly strike out alone across hundreds of miles of rugged, lonely country, he replies, 'Every so often, it's just time to walk.'" Kaylene Johnson is author of five books about Alaska including her memoir A Tender Distance: Adventures Raising My Son in Alaska
Oral History Interview: W.S. Dick Griffith
No full textThis interview is one of a series conducted concerning West Virginia communities, focusing on Ceredo. Mr. Dick Griffith was a business man and supporter of Ceredo- Kenova athletics. He discusses: Coach Carl Ward and Coach Craycraft; individuals such as Floyd Stark (president of the Ceredo Bank); as well as the community of Ceredo and their support of athletics.https://mds.marshall.edu/oral_history/1304/thumbnail.jp
An Investigation of the Role of Customer Engagement in Strengthening Service Brand Loyalty
No full textFor years, the development and maintenance of brand loyalty has been the ultimate goal of the marketing activities of many organisations (Dick & Basu, 1994; Fournier & Yao, 1997), and the significant benefits firms derive from strong brand loyalty have led to numerous studies investigating its formation. Previous loyalty research, which has mainly examined key marketing concepts such as service quality, customer satisfaction and perceived value as loyalty antecedents, has contributed significantly to the current understanding of the influence of transaction- related drivers of loyalty. However, the growth of the Internet and the emergence of new media channels have provided firms with an effective platform for customer interaction, enabling service brands to develop and maintain connections with customers beyond the service encounter. As a result, marketing scholars and practitioners increasingly recognise that brand loyalty can be built through a range of behaviours conceptualised as “customer engagement”.Thesis (PhD Doctorate)Doctor of Philosophy (PhD)Griffith Business SchoolGriffith Business SchoolFull Tex
The Influence of Physiological State on Feeding Behaviour of Bactrocera tryoni(Froggatt) (Diptera: Tephritidae)
No full textThis thesis examined the feeding behaviour of B. tryoni relative to the physiological
state (sex, maturity, mated state and nutritional condition) of the fly. I particularly
focused on the attraction of B. tryoni to proteinaceous food types with the intention of
explaining fly response as a function of physiological state.
All B. tryoni, irrespective of age, sex or mated state, preferentially feed in the first few
hours after sunrise, both in the laboratory and field cage environment. Sugar feeding
was greatest by mature mated females, followed closely by immature flies (both
sexes). Protein feeding was greatest in immature flies, while mature unmated females
spent very little time in protein feeding. Thus, proteinaceous baits used for B. tryoni
control would be least effective over mature unmated females.
Fly hunger is also relevant in determining how a fly will respond to food types. Some
results with A. ludens suggested that sugar hungry flies had a reduced attraction to
proteinaceous odours, a relevant consequence that significantly reduces the success of
proteinaceous baits. Indeed, gravid female B. tryoni had a much decreased attraction
to bacteria when sugar hungry, but the effect was not significant for immature flies
(both sexes). Therefore, I tested B. tryoni attraction to sugar food (open fruit) and
protein food (bacteria) combined, but the combined odours did not appear to be
significantly more attractive than one food source alone. Gravid females were
primarily attracted to fruit odour as an oviposition resource, independent of their
nutritional condition. Further, gravid females were only significantly attracted
bacterial odour when protein hungry and were repelled when fed. These results then
lead me to a further examination of fly attraction to bacterial odours. Common phyllosphere bacteria are a known protein source for B. tryoni. Anecdotal
evidence suggests that fly attraction to bacteria increases as the bacterial culture ages.
However this was only found true for immature flies. Gravid females that were
protein hungry initially had a strong response to bacterial odours in the exponential
growth phase, but had a much reduced response to stronger bacterial odours in the
stationary / death phase. This supports the theory that bacterial odours represent an
ovipositional deterrent to B. tryoni.
A common volatile released by phyllosphere bacteria, 2-butanone, is also thought to
be the attractive volatile in cue lure (a male B. tryoni sex attractant). However,
mature males had a relatively low response to bacteria, suggesting that bacterial
odours do not act as a sex attractant in the same way as cue lure.
My findings help explain why protein baits may or may not be effective in controlling
B. tryoni and will improve the decision making process when considering how best to
control B. tryoni.Thesis (Masters)Master of Philosophy (MPhil)Griffith School of EnvironmentScience, Environment, Engineering and TechnologyFull Tex
Effects on Attraction, Feeding and Mortality of Bactrocera tryoni (Froggatt) (Diptera:Tephritidae) and Beneficial Organisms with Protein Bait-Insecticide Mixtures
No full textThis thesis examines the effects of malathion, chlorpyrifos, fipronil and spinosad mixed in fruit fly protein bait on attraction, feeding and mortality of the Queensland fruit fly, Bactrocera tryoni (Froggatt). The effects of weathering of the protein bait-insecticide mixtures on the mortality of B. tryoni were also measured along with attraction, feeding response and toxicity of the protein bait sprays on important arthropod natural enemies particularly the red scale parasitic wasps, Aphytis lingnanensis (Compere) and Comperiella bifasciata (Howard), the green lace wing, Chrysoperla carnea (Stephens) and the mealy bug predator, Cryptolaemus montrouzieri (Mulsant).
In field cage experiments, protein-starved male B. tryoni showed the same level of attraction to protein baits mixed with malathion, chlorpyrifos, fipronil, spinosad and protein alone used as the control. However, protein-starved females elicited a difference in attraction with protein baits containing chlorpyrifos and spinosad. Traps with spinosad bait mixtures captured significantly more females compared to traps containing chlorpyrifos bait mixtures. Laboratory feeding experiments on protein-starved female flies demonstrated that baits containing malathion and chlorpyrifos deterred flies from feeding on them. In contrast, no such deterrence was detected with baits containing spinosad, fipronil and protein alone. These results demonstrated that the type of toxicant mixed with protein bait sprays can influence the attraction and feeding responses of B. tryoni. Therefore the process of screening toxicants for use in protein bait mixtures is important and should entail field and laboratory tests.
In terms of toxicity, protein baits mixed with malathion and chlorpyrifos caused significantly higher fly mortality and demonstrated a more rapid fly knock down than did spinosad, fipronil and protein alone as the control. Spinosad however was a slow acting toxicant, causing a gradual increase in fly mortality over time.
Fly mortality obtained with protein bait mixtures containing malathion, chlorpyrifos and fipronil, applied on citrus leaves, and weathered out doors for up to 6 days did not vary significantly from freshly applied baits. However, the residual effectiveness of bait mixed with spinosad waned significantly after 3 days of out door weathering. Fly mortality caused by 3 day aged spinosad bait mixture was significantly lower than fresh bait mixtures, suggesting a rapid break down of spinosad under field conditions.
The parasitism rates of the two most important parasitoids of red scales, A. lingnanensis and C. bifasciata, measured before and after commencement of fruit fly bait spraying in two commercial citrus orchards, did not show any significant negative trend. Aphytis were not attracted to Pinnacle protein, the most commonly used fruit fly protein lure in Australia. A significantly higher number of Aphytis were attracted to honey solution and protein bait mixed with 20% sugar, compared to protein bait alone. A no-choice test further confirmed this result, demonstrating no difference in attraction between protein and water.
Protein bait containing malathion, chlorpyrifos, fipronil, and spinosad, fresh and weathered for up to 12 days, caused high mortality in Aphytis. In contrast protein bait mixed with spinosad caused a lower Aphytis mortality after 12 days out door weathering, compared to chlorpyrifos bait mixture. However, for other weathering periods, no such differences in mortality between the treatments were observed. In addition, the parasitizing capacity of Aphytis, after being exposed to these weathered residues, was reduced. Except for the control, aged bait mixtures significantly reduced the fecundity of Aphytis. Therefore, while integrating chemical based field control along with bio-control agents, appropriate measures should be in place to reduce the negative impacts of toxic residues.
Overall, the findings from this study indicate that spinosad is a suitable alternative to the older toxicants, for incorporation into fruit fly protein baits. Moreover, fruit fly protein baits in the field are less likely to disrupt the activites of important natural enemies. However, chemical-based control of insect pests in a cropping system should be designed carefully with the objective to prevent potential harm to susceptible biological control agents such as Aphytis.Thesis (Masters)Master of Philosophy (MPhil)Griffith School of EnvironmentFaculty of Science, Environment, Engineering and TechnologyFull Tex
Housewives playing volleyball on the greensward in Griffith Park, 1930
No full textPhotograph of housewives playing volleyball on the greensward in Griffith park, 1930. About one hundred women wearing light collared shirts tucked into dark shorts that extend to the knee can be seen on a grass field at center. Several volleyball nets can be seen, while a few buildings can be seen on the hill in the background. Two women can be seen sitting underneath a tree in the left foreground with their legs crossed. Photoprint reads: "Scene on mid-winter day at Griffith Park, Los Angeles" and "Los Angeles housewives enjoy a field day in mid-winter on the greens ward of Griffith playground". Back of photoprint reads: "ask anyone, photo by 'Dick' Whittington, phone republic 5148, 3845 Wisconsin St., Los Angeles"
Motion and mobility in the realist novels of Philip K Dick
No full textThis essay explores the ways that ideas of motion and mobility support readings of Philip K Dick's early novels that take full account of the changing geographical context. They are set during a period of rapid suburban expansion, the building of the interstate and the spread of automobility through car ownership, and their characters frequently exist in a state between continuity through conformity and the potential for change. The open ended forms of the novels reflect a world around Dick that was still under construction, and where alternative realities can be glimpsed between incomplete materialities
Living Life to the Full: a Qualitative Study of Community Theatre, Older People and the Construction of Leisure
No full textOlder women and men were participants in this qualitative research of three case studies of community theatre. Their stories, gathered through in-depth interviews and participant observation of the theatre projects over a four year period, informed the development of a theoretical model of leisure as process. Through devising and presenting their theatre pieces, 50 older people, ranging in age from 45-8 5 years, with differing cultural and socio-economic backgrounds, reflected on personal experiences, negotiated their own processes for working collaboratively, and presented the stories of theft lives publicly in a way which affirmed their actions and understandings of themselves and theft world. Interviews with more than 30 of these people allowed an analysis of the ways in which older people negotiated the processes of play-building and constructed meaning in their lives at a time when the social structures of paid work and family were becoming less central as people moved into their third age. This research has located the study of individual agency through leisure in the context of the social structures which shape constraints to leisure and in turn limit individual agency. As such, the research has been concerned both with the self and with social relationship and has theorised leisure as a process of negotiation. Since process implies change over time, the research methods used and the leisure context selected for study were also process oriented. The research methodology was emergent and took on qualities of action research as the study progressed. By focusing on community theatre as the social context for leisure, the nexus between community development, community theatre and action research was examined and found to inform a broader understanding of leisure as process. The research has also expanded knowledge of community theatre as a collaborative process which draws on individual and collective reflections to build public presentations of issues of concern to participants. The processes of community theatre have received no attention to date in the leisure literature. The negotiation of self takes place in different social contexts for women and for men, for Aboriginal and non-Aboriginal Australians, for old and young, and for people from different socio-economic backgrounds. This research demonstrated that changes in personal situations as a result of the aging process, changes in family context and changes in work context are associated with changes in the negotiation of self, and these changes are expressed through leisure activity as well as other involvements less clearly classified as leisure. Purposive aspects of leisure assumed greater significance as people grew older and this was expressed in the culture of busyness and a pride in 'never being home'. Older women, in particular, developed friendships and community networks outside the family unit as relationships with husbands and children changed. These social connections were found to facilitate difficult transitions such as divorce or the death of a spouse. Community theatre supported the development of community networks, and presented an opportunity to claim a voice in the public arena and challenge the invisibility of older age. The research added to knowledge about constraints on leisure involvement by older people, and identified personal, social and material constraints. The most significant of these were the personal constraints of fear and of ill-health. However, participants in this research continued to negotiate a path through constraint in order to live their lives to the full. Analysis of their stories indicated that whilst constraint sometimes operated as a hierarchical process of control pushing people into isolation, people who were supported in their efforts to negotiate constraint through the development of community networks gained self-confidence and a heightened sense of agency. The processes of community development used in community theatre were found to facilitate the negotiation of constraint by developing personal skills and strengthening social support. The constructivist orientation of the research acknowledged the dialectical nature of knowledge construction and the possibility of social change through research. Aspects of action research were demonstrated in the processes of community theatre, which also seeks social as well as personal change. The research has a political motivation in that it seeks to strengthen the position of participants. Concern with the power relationship between researcher and researched facilitated a deeper understanding of the role of power in the process of leisure. The research opens up one small window on the processes whereby people may continue to live life to the full through active engagement in life and leisure.Thesis (PhD Doctorate)Doctor of Philosophy (PhD)School of Leisure StudiesGriffith Business SchoolFull Tex
Guidelines for good research: either action research or science
No full textThe theoretical literature to support good research practice, either action research or science, appears to lack practical guidelines for conducting systematic inquiry, within the contingencies of a given research context. I suggest this lack is due to some misconceptions about the nature of good research. In order to re-dress this lack and to enhance the practices of both methods of inquiry, I wish to challenge what I believe to be some wrong assumptions about good research. I will base my challenge on the empirical evidence of 22 case studies of acknowledged good research in both action research and agricultural science and on the understanding of knowledge as defined by the philosophical sceptics, ie that the ideal of ‘true and certain knowledge’ is unattainable.
The assumptions about good research that I wish to challenge are:
that there is one scientific or action research method,
that prescriptive theoretical literature provides a basis for sound practice,
that research is a search for truth,
that participation is the defining feature of action research and
that action research and science are incommensurable.
On the basis of my argument that action research and science are not incommensurable, I will suggest guidelines for the practice of rigorous systematic inquiry which are relevant to both methodologies. If those guidelines are acceptable to all researchers, they can provide a basis for collaborative research between action researchers and scientists which can improve the quality of research results for clients. Such collaboration can also improve the practice of the researchers by enabling them to learn methods of systematic inquiry from each other’s processes. I will demonstrate an application of these guidelines with a case study of a collaborative and participative research project conducted by myself and an agricultural scientist colleague.Thesis (PhD Doctorate)Doctor of Philosophy (PhD)School of Cognition, Language and Special EducationFull Tex
Griffith Edwards speaking at Mark Keller's Recognition Dinner
No full textA picture of Griffith Edwards giving a speech at Mark Keller's Recognition Dinner. Photograph taken at the Mark Keller Recognition Dinner, October 7, 1977, Fiddler's Elbow Country Club, Lamington, NJ. From the Mark Keller Album. Photography by Dick Zylman.From the Mark Keller Collection located in Annex
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