3,838 research outputs found

    Attitudes and Family Farm Business Performance

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    This study aimed to identify the top performing and the bottom performing family farm businesses based upon business performance, and then compare and contrast the perceptions and attitudes towards acquiring management skills and attributes that lead to improved business performance. Using extensive interviews data were obtained from 200 family farm businesses from New South Wales and Victoria covering a range of enterprises. The key findings were, firstly, that for all farmers the maintaining of a stable family relationship was of paramount importance in the running of the farm business. Secondly, that the Top 20% of farmers had high levels of self-efficacy and thus possessed the capability and the competence to perform tasks successfully. High performers also were more committed to the creation of long-term wealth and viewed business skills as a higher priority for training. Low performers were more highly committed to the farm's environmental health, placed a greater emphasis on production and sustainability for training and were more likely to give a lower priority to business issues. Both groups agreed that formal training that involved practical farmers with education skills providing them with tailor-made modules were best suited to their personal learning needs. The consistently high priority of family and business issues suggests that the opportunity exists to integrate the training of attitudes and skills with family, sustainable business practices and community issues. The study was funded by the Rural Industries Research and Development Corporation.Farm Management,

    The response of burrow-nesting petrels and other vulnerable bird species to vertebrate pest management and climate change on sub-Antarctic Macquarie Island

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    Pest species management is causing rapid and significant changes to burrow-nesting petrel populations on sub-Antarctic Macquarie Island. The Weka, Gallirallus australis, was eliminated by 1989 and the Feral Cat, Felis catus, eradicated in 2000. The most abundant burrownesting petrel species currently, White-headed Petrels, Pterodroma lessonii, Antarctic Prions, Pachyptila desolata, and Sooty Shearwaters, Puffinus griseus, have yet to increase in numbers, but are expected to do so in the absence of cats. This study found evidence that Grey Petrels, Procell aria cinerea, began breeding again on the island in 1999, after an absence of over 100 years. Blue Petrels, Halobaena caerulea, and Fairy Prions, Pachyptila turtur, were found to be re-colonising Macquarie Island from offshore stacks after a similar absence. South Georgian Diving-Petrels, Pelecanoides georgicus, were also possibly recolonising the island. Despite the presence of Black Rats, Rattus rattus, most of the bird species discussed are considered capable of population increase. If European Rabbits, Oryctolagus cuniculus, are not eliminated or maintained in reduced numbers, some petrel populations will never fully recover. Climate change could have a negative impact on burrow-nesting petrels, and is likely to exacerbate the detrimental effects of the remaining pest species on vulnerable indigenous bird species, compounding the need for remedial action against rabbits in particular. Together with predictions that other petrel species will now return to breed, certain terrestrial bird species, alien to the region, may invade Macquarie Island as a consequence of the combination of pest eradication and changing climatic conditions

    Two functionally different muscle fibre types in some salps?

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    This paper describes the structure and operation of the fibres in the locomotor muscle bands of several salp species. In many species, for example Thalia democratica or Pegea confoederata, all the muscle fibres of the locomotor muscle bands are similar in width and structure. In others, for example Salpa fusiformis and S. maxima, although fibre structure is similar, the marginal fibres edging the bands may be some 3-4 times the width of those in the centre of the band. In Ihlea punctata, not only is there a more striking difference in width between the marginal and central fibres of the bands, but also the two differ in structure. The marginal fibres are up to 10 times the width of the central fibres and the two differ in myofibrillar and mitochondrial content. Intracellular recordings from the fibres show that the normally compound spike potentials do not overshoot resting potentials (up to -70 mV), and are decremental. The two types of fibre may be separately activated. It is suggested that in Ihlea punctata, the wide marginal fibres may be involved in slow swimming, the central narrow fibres in `escapeĀ“ swimming.No disponibl

    A systematic review and meta-analysis of the good-enough level (GEL) literature

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    The ā€œgood-enough levelā€ (GEL) model proposes that people respond differentially to psychotherapy, and that the typical curvilinear ā€œdose-responseā€ shape of change may be an artifact of aggregation. We conducted a systematic review and meta-analysis of the GEL literature to examine (a) whether different subgroups of adults accessing psychotherapy respond to therapy at different rates and (b) whether the shape of change is linear or nonlinear. This review was preregistered on PROSPERO. Fifteen studies were synthesized (n = 114,123), with 10 included across two meta-analyses (n = 46,921; n = 41,515). Systematic searches took place using Medline, APA PsycInfo and Scopus databases. A key inclusion criterion was that cases must be stratified by treatment length to examine the GEL. In support of the GEL, there was no overall association between treatment duration and outcomes (r = āˆ’0.24, 95% confidence interval [CI: āˆ’0.70, 0.36], p = .27). Longer treatments were associated with higher baseline symptom scores (r = 0.15, 95% CI [0.08, 0.22], p < .001) and slower rates of change. Different shapes of change were also evidenced: Curvilinear responses were more often found in shorter treatments, while linear shapes were more often found in longer treatments. However, findings varied depending on methodological criteria used. Although rates of change varied in line with the GEL, most people nonetheless responded within defined boundaries as described in the dose-response literature. We therefore refer to the notion of ā€œboundaried responsive regulationā€ to describe the relationship between treatment duration and outcomes

    Health psychology attendance: A multilevel analysis of patient-level predictors and therapist effects

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    The study investigated adult outpatient Health Psychology Services appointment attendance, cancellation, and missed appointments (A/C/M). The first objective was to determine which demographic and process factors predicted the probability of A/C/M. The second objective was to determine whether there remained residual significant differences in A/C/M between therapists (i.e., a ā€œtherapist effectā€), after controlling for explanatory variables. We conducted a practice-based retrospective 2-year cohort study. Three-level multilevel models were constructed and tested to analyze the probability of A/C/M at (1) assessment appointments (N = 1,175) and (2) follow-up appointments (N = 5,441). After controlling for predictor variables, significant therapist effects were found for attendance (10.0% to 13.0%) and cancellation (4.4%) at follow-up appointments (but not assessments), indicating significantly different attendance rates at follow-up between therapists. Predictors of attendance at follow-up included patient age, pretherapy symptom severity scores (including risk and symptom scores), and completion of intake questionnaires. Early morning follow-up appointments were least likely to be canceled, followed by late afternoon and finally midday appointments. Treatment intensity predicted attendance, but among qualified therapists, qualification type and pay level were nonsignificant. No significant predictors of attendance at assessment were detected. Attendance at Health Psychology Services outpatient appointments varies significantly according to patient, therapist, and appointment factors. Key routinely collected variables are predictive of attendance at follow-up. Clinical implications include the potential to identify patients at risk of nonattendance and target engagement interventions to these patients. Research directions include closer examination of variability in follow-up attendance between therapists

    Management of work-relevant upper limb disorders: a review

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    Background Upper limb disorders (ULDs) are clinically challenging and responsible for considerable work loss. There is a need to determine effective approaches for their management. Aim To determine evidence-based management strategies for work-relevant ULDs and explore whether a biopsychosocial approach is appropriate. Methods Literature review using a best evidence synthesis. Data from articles identified through systematic searching of electronic databases and citation tracking were extracted into evidence tables. The information was synthesized into high-level evidence statements, which were ordered into themes covering classification/diagnosis, epidemiology, associations/risks and management/treatment, focusing on return to work or work retention and taking account of distinctions between non-specific complaints and specific diagnoses. Results Neither biomedical treatment nor ergonomic workplace interventions alone offer an optimal solution; rather, multimodal interventions show considerable promise, particularly for occupational outcomes. Early return to work, or work retention, is an important goal for most cases and may be facilitated, where necessary, by transitional work arrangements. The emergent evidence indicates that successful management strategies require all the players to be onside and acting in a coordinated fashion; this requires engaging employers and workers to participate. Conclusions The biopsychosocial model applies: biological considerations should not be ignored, but psychosocial factors are more influential for occupational outcomes. Implementation of interventions that address the full range of psychosocial issues will require a cultural shift in the way the relationship between upper limb complaints and work is conceived and handled. Dissemination of evidence-based messages can contribute to the needed cultural shift

    The influence of the strength of bone on the deformation of acetabular shells : a laboratory experiment in cadavers

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    Date of Acceptance: 24/08/2014 Ā©2015 The British Editorial Society of Bone & Joint Surgery. The authors would like to thank N. Taylor (3D Measurement Company) for his work with regard to data acquisition and processing of experimental data. We would also like to thank Dr A. Blain of Newcastle University for performing the statistical analysis The research was supported by the NIHR Newcastle Biomedical Research Centre. The authors P. Dold, M. Flohr and R. Preuss are employed by Ceramtec GmbH. Martin Bone received a salary from the joint fund. The author or one or more of the authors have received or will receive benefits for personal or professional use from a commercial party related directly or indirectly to the subject of this article. This article was primary edited by G. Scott and first proof edited by J. Scott.Peer reviewedPostprin

    Performance Evaluation of Road Traffic Control Using a Fuzzy Cellular Model

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    In this paper a method is proposed for performance evaluation of road traffic control systems. The method is designed to be implemented in an on-line simulation environment, which enables optimisation of adaptive traffic control strategies. Performance measures are computed using a fuzzy cellular traffic model, formulated as a hybrid system combining cellular automata and fuzzy calculus. Experimental results show that the introduced method allows the performance to be evaluated using imprecise traffic measurements. Moreover, the fuzzy definitions of performance measures are convenient for uncertainty determination in traffic control decisions.Comment: The final publication is available at http://www.springerlink.co
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