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Neels Botha Jeff Coutts Hein Roth 《The Journal of Agricultural Education and Extension》2013,19(2):125-138
Abstract The aim of this study was to understand the role that agricultural consultants in New Zealand were undertaking in the Research, Development and Extension (RD&E) system—and in particular in relation to environmental extension. New Zealand does not have a public extension service and hence there is a strong reliance on consultants and regional councils for environmental management information and advice. As they are independent of the formal RD&E system there is no guarantee that RD&E outcomes are reaching farmers, nor that effective environmental extension is occurring. The study used a combination of case studies, phone interviews with informed persons and a national web survey to explore the role of the consultant. The study found that agricultural consultants are playing an important role in working with farmers to improve agricultural production. There are, however, indications that gaps have developed over time between agricultural consultants and the agricultural research sector which limit the effectiveness of the RD&E system. Agricultural consultants are playing a minimal role in proactive environmental extension because insufficient market forces are driving this role. The paper suggests that a national database of agricultural consultants could improve the flow of tailored information between research and agricultural consultants and also suggests mechanisms where consultants could be better integrated into the RD&E system and provide feedback to research programs. Market failure in the area of environmental extension could be addressed by publicly funded incentive programs. 相似文献
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Many school children throughout the world who exhibit antisocial or destructive behaviour or have social, emotional and behavioural difficulties (SEBD) do not receive the support they need. As a result, they are caught up in a cycle of vulnerability. Systemic collaborative support is needed to counter this. Although in some cases teachers and other professionals join forces, interventions are usually affected by individual professionals outside the framework of inclusive education. This literature review paper explores the support children with SEBD in school contexts receive. The findings of the thematic document analysis highlight the vulnerability of children with SEBD, the success or otherwise of attempts made by various approaches and intervention programmes to provide support to these children, and the barriers to inclusive support. We argue the merits of adopting a Community of Practice as an inclusive model to support school children with SEBD. This kind of inclusive model strengthens constructive partnerships that provide these children with opportunities to acquire the social capital they need to engage meaningfully at schools and in their future life. 相似文献
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Xi Zhang Jorik Blaas Charl Botha Peter Reischig Alberto Bravin Joris Dik 《Journal of Cultural Heritage》2012,13(2):221-225
Computer tomography (CT) technology has greatly contributed to the feasibility and convenience of detecting and visualizing the internal material constitution and geometrical fabrication of museum artifacts. This paper presents a case study of 3D virtual reconstruction for the CT-acquisition-based study of a cultural heritage artifact. It documents the complete procedure, including the preprocessing, segmentation and visualization of the data by providing coarse interactive exploration and integrated high-quality renderings. A parallel aim achieved was to use open source tools and free software for segmentation and visualization, thus providing full transparency of the adopted methodology and 3D visualization methods, and a cost effective solution for ordinary CPU-based PC users. Furthermore, the challenges of the large data volumes involved have been addressed using preprocessing, a segmentation scheme and linked front-to-back management to keep interaction and high-quality rendering available, thus achieving corresponding demands. 相似文献
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RJ Maughan 《Journal of sports sciences》2013,31(9):883-889
The use of dietary supplements is widespread in sport and most athletes competing at the highest level of competition use some form of dietary supplementation. Many of these supplements confer no performance or health benefit, and some may actually be detrimental to both performance and health when taken in high doses for prolonged periods. Some supplements contain excessive doses of potentially toxic ingredients, while others do not contain significant amounts of the ingredients listed on the label. There is also now evidence that some of the apparently legitimate dietary supplements on sale contain ingredients that are not declared on the label but that are prohibited by the doping regulations of the International Olympic Committee and of the World Anti-Doping Agency. Contaminants that have been identified include a variety of anabolic androgenic steroids (including testosterone and nandrolone as well as the pro-hormones of these compounds), ephedrine and caffeine. This contamination may in most cases be the result of poor manufacturing practice, but there is some evidence of deliberate adulteration of products. The principle of strict liability that applies in sport means that innocent ingestion of prohibited substances is not an acceptable excuse, and athletes testing positive are liable to penalties. Although it is undoubtedly the case that some athletes are guilty of deliberate cheating, some positive tests are likely to be the result of inadvertent ingestion of prohibited substances present in otherwise innocuous dietary supplements. 相似文献
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L.R. Becker L.D. Beukes A. Botha A.C. Botha J.J. Botha M. Botha D.J. Cloete J.L. Cloete C. Coetzee L.J. De Beer D.J. De Bruin L. De Jager J.J.R. De Villiers C.M. Du Toit A. Engelbrecht R. Evans M.M.C. Haupt D. Heyns L.M. Howatt A.P. Joubert J.C. Joubert A.C. Niemann N.C. Phatudi E. Randall W.J. Rauscher W.C. Rautenbach S. Scholtz J.C. Schultz R. Swart H.J. Van Aswegen J.C. Van Heerden W.J. Van Vollenhoven E.M. Van Wyk J.G.U. Van Wyk C.A. Van der Walt C.N. Van der Westhuizen D. Vermeulen A. Vorster 《Higher Education》2004,48(2):153-172
In South Africa, recent government plans tochange the institutional landscape of highereducation have resulted in mergers of collegesinto universities or technikons. The researchreported in this article focuses solely on theimpact of a ``college-into-university'incorporation as manifested in the personal,emotional and career experiences of thesecollege staff members. It traces the changes intheir perceptions and emotions during and afterthe incorporation process. It also identifiesrecurring themes and issues evident in thepersonal lives of those affected by thisincorporation.A unique research methodology was engaged: TheCollege staff who had been appointed to theuniversity after the merger, identified sevencritical themes and then designed and conducted30 semi-structured interviews among themselves.This article thus documents the impact ofincorporation into a university on theindividual and collective lives of theresearchers themselves.The data suggest that the emotional impact ofincorporation was intense and that theuncertainty, especially, led to considerabletrauma. The most important concern emanatingfrom this joint research project is that whilea certain degree of distress is unavoidable inany institutional merger, inattention to themanagement of human resources, emotions andaspirations could linger on, possibly having anegative effect on the ambitions for thetransformation of the new entity. 相似文献
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Fluid and electrolyte balance in elite male football (soccer) players training in a cool environment
There are few data in the published literature on sweat loss and drinking behaviour in athletes training in a cool environment. Sweat loss and fluid intake were measured in 17 first-team members of an elite soccer team training for 90 min in a cool (5°C, 81% relative humidity) environment. Sweat loss was assessed from the change in body mass after correction for the volume of fluid consumed. Sweat electrolyte content was measured from absorbent patches applied at four skin sites. Mean (?± s) sweat loss during training was 1.69?±?0.45 l (range 1.06?-?2.65 l). Mean fluid intake during training was 423?±?215 ml (44?-?951 ml). There was no apparent relationship between the amount of sweat lost and the volume of fluid consumed during training (r 2 = 0.013, P = 0.665). Mean sweat sodium concentration was 42.5?±?13.0 mmol?·?l?1 and mean sweat potassium concentration was 4.2?±?1.0 mmol?·?l?1. Total salt (NaCl) loss during training was 4.3?±?1.8 g. The sweat loss data are similar to those recorded in elite players undergoing a similar training session in warm environments, but the volume of fluid ingested is less. 相似文献
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In-depth interviews were conducted with a sample of BCom Entrepreneurship graduates, as well as a control group to determine whether the exposure to entrepreneurship education can enhance actual business start-up. Information was collected on how they experienced the learning approaches, and the value which they had derived from the degree. This was done as a case study at the University of Pretoria. More entrepreneurship graduates started businesses than the control group. Findings of the various constraints to start-up ? of the entrepreneurship graduates’ group ? focused on the lack of a viable business idea and know-how, as compared with the other graduate groups, who indicated that fear of failure and aversion to taking risks were their main constraints. The entrepreneurship graduates were less risk averse than the control group. 相似文献