771 resultados para retention of students
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Globalised communication in society today is characterised by multimodal forms of meaning making in the context of increased cultural and linguistic diversity. This research paper responds to these imperatives, applying Halliday's (1978, 1994) categories of systemic functional linguistics - representational or ideational, interactive or interpersonal, and compositional or textual meanings. Following the work of Kress (2000), van Leeuwen (Kress and van Leeuwen, 1996), and Jewitt (2006), multimodal semiotic analysis is applied to claymation movies that were collaboratively designed by Year 6 students. The significance of this analysis is the metalanguage for textual work in the kineikonic mode - moving images.
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BACKGROUND: Donor retention is vital to blood collection agencies. Past research has highlighted the importance of early career behavior for long-term donor retention, yet research investigating the determinants of early donor behavior is scarce. Using an extended Theory of Planned Behavior (TPB), this study sought to identify the predictors of first-time blood donors' early career retention. STUDY DESIGN AND METHODS: First-time donors (n = 256) completed three surveys on blood donation. The standard TPB predictors and self-identity as a donor were assessed 3 weeks (Time 1) and at 4 months (Time 2) after an initial donation. Path analyses examined the utility of the extended TPB to predict redonation at 4 and 8 months after initial donation. RESULTS: The extended TPB provided a good fit to the data. Post-Time 1 and 2 behavior was consistently predicted by intention to redonate. Further, intention was predicted by attitudes, perceived control, and self-identity (Times 1 and 2). Donors' intentions to redonate at Time 1 were the strongest predictor of intention to donate at Time 2, while donors' behavior at Time 1 strengthened self-identity as a blood donor at Time 2. CONCLUSION: An extended TPB framework proved efficacious in revealing the determinants of first-time donor retention in an initial 8-month period. The results suggest that collection agencies should intervene to bolster donors' attitudes, perceived control, and identity as a donor during this crucial post–first donation period.
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Pesticides used in agricultural systems must be applied in economically viable and environmentally sensitive ways, and this often requires expensive field trials on spray deposition and retention by plant foliage. Computational models to describe whether a spray droplet sticks (adheres), bounces or shatters on impact, and if any rebounding parent or shatter daughter droplets are recaptured, would provide an estimate of spray retention and thereby act as a useful guide prior to any field trials. Parameter-driven interactive software has been implemented to enable the end-user to study and visualise droplet interception and impaction on a single, horizontal leaf. Living chenopodium, wheat and cotton leaves have been scanned to capture the surface topography and realistic virtual leaf surface models have been generated. Individual leaf models have then been subjected to virtual spray droplets and predictions made of droplet interception with the virtual plant leaf. Thereafter, the impaction behaviour of the droplets and the subsequent behaviour of any daughter droplets, up until re-capture, are simulated to give the predicted total spray retention by the leaf. A series of critical thresholds for the stick, bounce, and shatter elements in the impaction process have been developed for different combinations of formulation, droplet size and velocity, and leaf surface characteristics to provide this output. The results show that droplet properties, spray formulations and leaf surface characteristics all influence the predicted amount of spray retained on a horizontal leaf surface. Overall the predicted spray retention increases as formulation surface tension, static contact angle, droplet size and velocity decreases. Predicted retention on cotton is much higher than on chenopodium. The average predicted retention on a single horizontal leaf across all droplet size, velocity and formulations scenarios tested, is 18, 30 and 85% for chenopodium, wheat and cotton, respectively.
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Keywords gerontological nursing;health care reform;health policy;long-term care;recruitment and retention Aim The aim of the study was to explore registered nurses’ experiences in long-term aged care in light of the political reform of aged care services in Australia. Background In Australia, the aged care industry has undergone a lengthy period of political and structural reform. Despite reviews into various aspects of these reforms, there has been little consideration of the effect these are having on the practice experiences and retention of nursing staff in long-term care. Methods In this critical hermeneutic study, 14 nurses from long-term care facilities in Australia were interviewed about their experiences during the reform period. Results The data revealed a sense of tension and conflict between nurses’ traditional values, roles and responsibilities and those supported by the reforms. Nurses struggled to renegotiate both their practice roles and values as the reforms were implemented and the system evolved. Nursing management support was an important aspect in mediating the effect of reforms on nursing staff. Conclusion This research highlights both the tensions experienced by nurses in long-term aged care in Australia and the need to renegotiate nursing roles, responsibilities and values within an evolving care system. This research supports a role for sensitive and proactive nursing management during periods of industry reform as a retention strategy for qualified nursing personnel.
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We extended the previous work of Moss, O’Connor and White, to include a measure of group norms within the theory of planned behaviour (TPB), to examine the influences on students’ decisions to use lecture podcasts as part of their learning. Participants (N = 90) completed the extended TPB predictors before semester began (Time 1) and mid-semester (Time 2) and reported on their podcast use at mid-semester (Time 2) and end of semester (Time 3). We found that attitudes and perceived social pressures were important in informing intentions at both time points. At Time 1, perceptions of control over performing the behaviour and, at Time 2, perceptions of whether podcast use was normative among fellow students (group norms) also predicted intended podcast use. Intentions to use podcasting predicted self-reported use at both Time 2 and Time 3. These results provide important applied information for educators to encourage student use of novel on-line educational tools.
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The growing reliance on volunteers in Australia has heightened the need for non-profit organisations to retain these valuable resources. However, the current literature on volunteer retention is limited. One potential way volunteers can be retained is by providing learning and development opportunities (LDOs). This study investigates the relationship between volunteer perceptions of LDOs, their motivations for volunteering, and retention. Analyses revealed significant main effects for LDOs and volunteer motivations on retention and several interactive effects demonstrating that LDOs can have differential effects on retention depending on the reasons for volunteering.
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BACKGROUND In a process engineering setting, graduates are frequently allocated reviews of existing operations or required to scope new production processes by their supervisors with a view to improving or expanding on operations and overall productivity. These tasks may be carried out in teams and in consultation with the process engineer’s immediate line manager or a more experienced engineer, such as the Production or Maintenance Manager; ultimately reporting to senior management, which is frequently a non-engineer. Although professional skills development is part of engineering curricula, ‘professional conduct’ and ‘accountability’ required for dealing with peers and superiors in industry is not very well addressed at university. Consequently, upon graduation, many students are, in terms of knowledge and experience in this area, underprepared to work effectively in industry settings. PURPOSE The purpose of this study was to develop and implement a role-play scenario within a core 2nd year process engineering unit, so that students could gain knowledge, skills and experience in different aspects (and nuances) of professional conduct and accountability. DESIGN/METHOD In the role-play scenario, students worked in ‘engineering production teams’ to design a process for an iconic Queensland fruitcake and to present their solution and recommendations (culminating in a poster presentation) to an assessment panel consisting of staff, role-playing as, ‘production and plant managers’. Students were assessed on several areas, including professionalism using a criteria referenced assessment guide by a 3-member cross-disciplinary staff panel consisting of a Business Faculty lecturer, an engineer from industry and the lecturer of the Process Engineering unit. Professional conduct and accountability was gauged through direct questioning by the panel. Feedback was also sought from students on various aspects through a survey questionnaire after the role play activity at the end of semester. RESULTS Overall, the role play was very well performed with students achieving an average score of 79.3/100 (distinction grade). Professional conduct as assessed by panel was on average better than scores given for professional accountability (4.0 compared with 3.6 out of 5). Feedback from students indicated that the learning activities had contributed to their overall understanding of the content and the role of process engineers. Industry involvement was rated very highly as contributing to their learning at 4.8 (on Likert scale from 1 – 5) and the poster presentation was rated at 3.6. CONCLUSIONS This pilot study was successful in implementing a new assessment task for modelling professional conduct and accountability within a 2nd year core unit. This task incorporated a role-play activity and there was evidence to suggest that this and associated learning tasks were successful in broadening students’ understanding and skills in this area required for engineering practice. Following feedback given by students and staff, improvements will be made to the nature of the problem, how it is defined, its assessment, and the approach taken in the role-play scenario when the unit is offered in 2014.
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This paper describes the development and use of personas, a Human Computer Interaction (HCI) research methodology, within the STIMulate peer learning program, in order to better understand student behaviour patterns and motivations. STIMulate is a support for learning program at the Queensland University of Technology (QUT) in Brisbane, Australia. The program provides assistance in mathematics, science and information technology (IT) for course work students. A STIMulate space is provided for students to study and obtain one-on-one assistance from Peer Learning Facilitators (PLFs), who are experienced students that have excelled in relevant subject areas. This paper describes personas – archetypal users - that represent the motivations and behavioural patterns of students that utilise STIMulate (particularly the IT stream). The personas were developed based on interviews with PLFs, and subsequently validated by a PLF focus group. Seven different personas were developed. The personas enable us to better understand the characteristics of the students utilising the STIMulate program. The research provides a clearer picture of visiting student motivations and behavioural patterns. This has helped us identify gaps in the services provided, and be more aware of our assumptions about students. The personas have been deployed in PLF training programs, to help PLFs provide a better service to the students. The research findings suggest further study on the resonances between some students and PLFs, which we would like to better elicit.
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Electrochemical capacity retention of nearly X-ray amorphous nanostructured manganese oxide (nanoMnO2) synthesized by mixing directly KMnO4 with ethylene glycol under ambient conditions for supercapacitor studies is enhanced significantly. Although X-ray diffraction (XRD) pattern of nanoMnO2 shows poor crystallinity, it is found that by Mn K-edge X-ray absorption near edge structure (XANES) measurement that the nanoMnO2 obtained is locally arranged in a δ-MnO2-type layered structure composed of edge-shared network of MnO6 octahedra. Field emission scanning electron microscopy and XANES measurements show that nanoMnO2 contains nearly spherical shaped morphology with δ-MnO2 structure, and 1D nanorods of α-MnO2 type structure (powder XRD) in the annealed (600 °C) sample. Volumetric nitrogen adsorption−desorption isotherms, inductively coupled plasma analysis, and thermal analysis are carried out to obtain physicochemical properties such as surface area (230 m2 g−1), porosity of nanoMnO2 (secondary mesopores of diameter 14.5 nm), water content, composition, etc., which lead to the promising electrochemical properties as an electrode for supercapacitor. The nanoMnO2 shows a very high stability even after 1200 cycles with capacity retention of about 250 F g−1.
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The social-emotional issues some students experience can place them at risk of school failure. Traditional methods of support can be ineffective or not sustainable and new alternative approaches need to be attempted to support social-emotional competency, school engagement and success for students at risk. This paper discusses preliminary outcomes of an equine facilitated learning (EFL) programme specifically designed to focus on using horses to improve the resilience and social-emotional competency in students perceived as ‘at risk’ of school failure. This qualitative exploratory study used interviews and observations over a six month period to listen to the voices of the students themselves about their experiences of EFL. Initial findings from the pilot study suggest that EFL programmes can be a novel and motivating way to promote resilience training and social-emotional development of students at risk of failure and, in turn, improve their level of engagement and connection with school environments.
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The modern student represents a change from the traditional learner. More than ever before, additional resources are available online and yet personalised learning and peer-assistance programs are becoming an essential part of tertiary education delivery. This paper presents the first stage in a user-centred design approach to the analysis of the completeness and efficacy of such a personalised, peer-based support for learning program. This approach used an iterative design methodology based on contextual interview, workshops and focus groups to develop personas representing students visiting the program. Initial uses of these developed personas have included training of new personnel as well as the evaluation of the program. Overall the use of this user-centred approach and iterative persona development methodology has yielded an invaluable resource for the design of support for learning programs across the higher education industry within Australia and beyond.
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Plasma polymerisation was used to deposit thin oligomeric films of terpinen-4-ol on a range of substrates. The coatings were examined in terms of their chemical properties and surface architecture to ascertain the changes in chemical composition as a result of exposure to the plasma field. The antifouling and antimicrobial activity of oligomeric terpinen-4-ol coatings were then examined against such human pathogens as Staphylococcus aureus, Pseudomonas aeruginosa and Staphylococcus epidermis. The bacterial adhesion patterns were investigated using scanning electron microscopy (SEM), atomic force microscopy (AFM) and confocal scanning laser microscopy (CSLM).
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Terpinen-4-ol is the main constituent of Melaleuca alternifolia essential oil known for its biocidal and anti-inflammatory properties. The possibility of fabricating polymer thin films from terpinen-4-ol using radio frequency (RF) plasma polymerisation for the prevention of the growth of Pseudomonas aeruginosa was investigated, and the properties of the resultant films compared against their biologically active precursor. Films fabricated at 10 W prevented bacterial attachment and EPS secretion, whilst polyterpenol films deposited at 25 W demonstrated no biocidal activity against the pathogen.
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The movement to protect heritage places has grown enormously in Australia over the past decade. The renewed recognition of the significant roles that heritage places play in the urban environment today is encouraging but has a way to go if the demolition of memorable places and irreversible loss of intangible values seen in previous times is to be discontinued. This study investigated the perceptions of the general public and the professional stakeholders in heritage projects and found that they were very similar, particularly in relation to the reasons for heritage retention. The results indicate that, while there is growing interest in sustaining the reflection of the historic urban landscape by retaining cherished icons for the future, there needs to be better ways to overcome the modern development pressures on heritage sites. The paper concludes that, despite the challenges in heritage retention, they are outweighed by the value that accrues from preserving heritage places and the widespread appreciation of that value.