996 resultados para Theory of electronic transport


Relevância:

100.00% 100.00%

Publicador:

Resumo:

This paper examines some of the effects of globalisation on education and teacher education. In particular it considers the contradictory demands of economic and cultural forms of globalisation, and between globalisation and localisation. Attempts to construct an 'education space' in Europe and Asia are considered and various responses of teacher education systems are outlined. A defensible theory of teacher education is presented around the transformation of curriculum, pedagogy, assessment and the practicum: one that might allow a creative response to the contradictions of globalisation.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Six new, charge-neutral norbornene-based receptors 1a,1b– 3a,3b were prepared, and their ability to interact with simple anions in DMSO was investigated using 1H NMR and UV/ Vis spectroscopy. Binding of dihydrogenphosphate by the six receptors appeared to be based solely on steric constraints. In contrast, the binding stoichiometry of 3a and 3b to acetate was controlled by subtle electronic factors.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Background : To assess from a societal perspective the incremental cost-effectiveness of the Walking School Bus (WSB) program for Australian primary school children as an obesity prevention measure. The intervention was modelled as part of the ACE-Obesity study, which evaluated, using consistent methods, thirteen interventions targeting unhealthy weight gain in Australian children and adolescents.

Methods : A logic pathway was used to model the effects on body mass index [BMI] and disability-adjusted life years [DALYs] of the Victorian WSB program if applied throughout Australia. Cost offsets and DALY benefits were modelled until the eligible cohort reached 100 years of age or death. The reference year was 2001. Second stage filter criteria ('equity', 'strength of evidence', 'acceptability', feasibility', sustainability' and 'side-effects') were assessed to incorporate additional factors that impact on resource allocation decisions.

Results : The modelled intervention reached 7,840 children aged 5 to 7 years and cost $AUD22.8M ($16.6M;$30.9M). This resulted in an incremental saving of 30 DALYs (7:104) and a net cost per DALY saved of $AUD0.76M ($0.23M; $3.32M). The evidence base was judged as 'weak' as there are no data available documenting the increase in the number of children walking due to the intervention. The high costs of the current approach may limit sustainability.

Conclusions : Under current modelling assumptions, the WSB program is not an effective or cost-effective measure to reduce childhood obesity. The attribution of some costs to non-obesity objectives (reduced traffic congestion and air pollution etc.) is justified to emphasise the other possible benefits. The program's cost-effectiveness would be improved by more comprehensive implementation within current infrastructure arrangements. The importance of active transport to school suggests that improvements in WSB or its variants need to be developed and fully evaluated.

Relevância:

100.00% 100.00%

Publicador:

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Aim: To develop a grounded theory of nursing’s contribution to patient rehabilitation from the perspective of nurses working in inpatient rehabilitation.

Design:
Grounded theory method, informed by the theoretical perspective of symbolic interactionism, was used to guide data collection and analysis, and the development of a grounded theory.

Setting:
Five inpatient rehabilitation units in Australia.

Participants:
Thirty-five registered and 18 enrolled nurses participated in audio-taped interviews and/or were observed during periods of their everyday practice.

Findings:
The analysis revealed a situation whereby nurses made decisions about when to ‘opt in’ and when to ‘opt out’ of inpatient rehabilitation. This occurred on two levels: with their interaction with patients and allied health professionals, and when faced with negative system issues that impacted on their ability to contribute to patient rehabilitation. The primary contribution nurses made to inpatient rehabilitation was working directly with patients, enabling them to self-care. Nurses coached patients when their decisions about ‘opting in’ and ‘opting out’ were based on assessment of the person in their particular context. In contrast, the nurses mostly distanced themselves from system-based problems, ‘opting out’ of addressing them. They did this not to make their working lives easier, but more manageable.

Conclusion:
System-based problems impacted negatively on the nurses’ ability to deliver comprehensive rehabilitation care. As a consequence, some nurses felt unable to influence the care and they withdrew professionally to make their work lives more manageable.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

This paper examines the temporal concepts that underlie the theory of transference in psychoanalysis. The paper reviews Freud's rejection of linear temporality as characteristic of unconscious thought in favour of regression, repetition, and deferred action. It then develops concepts drawn from Jacques Lacan's theory of the formation of the ego. Here, the biologically determined helplessness derived from the human prematurity of birth becomes transformed into an ego that anticipates subjective unity. The paper then moves on to the more complex theory of the temporality implied in subject formation, offered in Lacan's later theory of separation. Implications are drawn for the use and understanding of transference in the practice of psychoanalysis via clinical examples. In addition, Lacan's ideas on subject formation are proposed as an extension and clarification of previous psychoanalytic theories of development.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

This paper will develop a specific reading of Julia Kristeva’s analysis of the Mother in psychoanalytic contexts and artistic production. I want to suggest a particular connection between the Mother and a second figure closely associated with her: the Midwife. Such a move opens up the possibility for a new understanding of Kristeva’s correlation of the Mother with the psychoanalytic concept of “abjection”. I wish to identify the Midwife as the crucial intersection of a masculine and feminine subjectivity. I will undertake this project via a historical study of Midwifery, which will include an exploration of the Midwife’s relationship to masculine ideologies of medical thought, as well as an account of the problematic rise of the “Man-Midwife”. My strategy will be to extend the submerged historical and material content of Kristeva’s own theories, with particular reference to Powers of Horror: An Essay on Abjection.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

The Osoyoos Indian Band case study signals the beginning of a PhD research project that will take approximately three years to complete. Taken in isolation, the objectives for the Osoyoos case study are modest. We want to refine our theoretical model and improve the case study protocol before embarking on a set of 5 case studies to explore Indigenous entrepreneurship; what it is, what communities do to succeed and a generalized definition of a successful venture from an Indigenous Canadian perspective.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

There is growing awareness of the benefits of rehabilitation both in Australia and overseas. While the provision of rehabilitation services is not new, recognition of this type of health service as an integral part of health care has been linked to changes in the provision of acute care services, advances in medical technology, improvements in the management of trauma and an ageing population. Despite this, little attention has been paid to nursing's contribution to patient rehabilitation in Australia. The aim of this grounded theory study, therefore, was to collect and analyse nurses' reports of their contributions to patient rehabilitation and to describe and analyse contextual factors influencing that contribution. Data were collected during interviews with registered and enrolled nurses working in five inpatient rehabilitation units in New South Wales and during observation of the nurses' everyday practice. A total of 53 nurses participated in the study, 35 registered nurses and 18 enrolled nurses. Grounded theory, informed by the theoretical perspective of symbolic interactionism, was used to guide data analysis, the ongoing collection of data and the generation of a substantive theory. The findings revealed six major categories. One was an everyday problem labelled incongruence between nurses' and patients' understandings and expectations of rehabilitation. Another category, labelled coaching patients to self-care, described how nurses independently negotiated the everyday problem of incongruence. The remaining four categories captured conditions in the inpatient context which influenced how nurses could contribute to patient rehabilitation. Two categories, labelled segregation: divided and dividing work practices between nursing and allied health and role ambiguity, were powerful in shaping nursing's contribution as they acted individually and synergistically to constrain nursing's contribution to patient rehabilitation. The other two categories, labelled distancing to manage systemic constraints and grasping the nettle to realise nursing's potential, represent the mutually exclusive strategies nurses used in response to segregation and role ambiguity. From exploration of the relationship between the six categories, the core category and an interactive grounded theory called opting in and opting out emerged. In turn, this grounded theory reveals nursing's contribution to inpatient rehabilitation as well as contextual conditions constraining that contribution. The significance of these findings is made manifest through their contribution to the advancement of nursing knowledge and through implications for nursing practice and education, rehabilitation service delivery and research.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Information technology continues to play an increasingly significant role in the development of firms competing in the vast array of markets from those classified as global markets, such as the automotive industry, to the smaller nationally-based markets such as retailing. An objective of electronic commerce is to assist organisations to remain competitive and gain entry to markets which were previously unattainable. This study focuses on the organisational impact of one form of electronic commerce (electronic data interchange) on the component sector of the Australian automotive industry and examines the extent to which trading partner relationships have been affected. The research investigates the extent to which the integration of electronic data interchange (EDI) with an organisation’s internal application system may facilitate specific net benefits. The automotive industry became the first Australian industry to cooperatively adopt EDI. Research to date has not adequately examined the organisational impact of the nature and extent of net benefits gained from EDI adoption. To achieve the objective of assessing EDI net benefits, a conceptual model was developed. The model proposed that the level of EDI net benefits expected is influenced by the size of the organisation and the concentration of trade achieved within the industry via intervening links through (a) the level of senior management commitment and (b) the extent of system integration. Nine empirically testable research propositions are derived from the model, each testing the relationship between model constructs. Data was collected from 114 component suppliers to Ford Australia in 1992 and 1994 using a repeated cross-sectional longitudinal design. Structural equation modelling using partial least squares was adopted in the analysis of the data. A pure longitudinal model together with 12 case studies of selected component manufacturers supplemented the research design. The results of the research showed that the proposed conceptual model is a good description of the data. In particular, net benefits obtained from EDI adoption are directly determined by the size of the organisation, and the extent to which firms integrate EDI into their internal application systems. The level of net benefits is only indirectly influenced by the level of senior management commitment to the EDI project through (a) management commitment’s direct effect on integration, and (b) the direct effect the volume of trade a supplier achieves with the automotive industry on senior management commitment and system integration. The major benefits organisations experienced from EDI were enhanced productivity, clerical staff savings, improved data accuracy, enhanced customer service and reduced administration costs. The research showed that few suppliers gained inventory savings from EDI, a frequently claimed benefit from EDI adoption. Evidence of small improvements in product quality emerged from the results. In summary, this research attempts to make two primary contributions to knowledge, first in providing a method by which net benefits from electronic commerce can be measured within an industry adopting electronic trading, and second, by providing organisations with the knowledge of the specific net benefits organisations could expect from EDI adoption, together with the four major factors affecting these benefits. The research concludes with possible directions for future research, in particular an assessment of the impact of incorporating financial EDI into electronic trading.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

A neurone model (the FORMON) is proposed which provides a mathematical explanation for a range of psychological phenomena and has potential in Artificial Intelligence applications. A general definition of organisation in terms of entropy and information is formulated. The concept of microcodes is introduced to describe the physical nature of organisation. Spatio-temporal pattern acquisition and processing functions attributable to individual neurones are reviewed. The criterion for self-organisation in a neurone is determined as the maximisation of mutual organisation. A feedback control system is proposed to satisfy this criterion and provide an integrated long-term memory of spatio-temporal pattern. This pattern acquisition system is shown to be applicable to dendritic pattern recognition and axonal pattern generation. Provision is also made for adaptation, short-term memory and operant learning. An electro-chemical model of transmission and processing of neural signals is outlined to provide the pattern acquisition functions of the Formon model. A transverse magnetic mode of electrotonic propagation is postulated in addition to the transverse electromagnetic mode. Configurations of the Formon are categorised in terms of possible pattern processing functions. Connective architectures are proposed as self-organising models of acquisitive semantic and syntactic networks.