Towards developing support tools for sustainable control of gastrointestinal nematodes in sheep : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Veterinary Science at Massey University, Palmerston North, Manawatū, New Zealand

Gastrointestinal nematode (GIN) parasitism is a major animal health challenge for sheep. Parasitized animals typically display a number of clinical signs, including a reduction in voluntary feed intake, altered grazing behaviour and lethargy. The aim of this thesis was to use remote sensing technologies to advance the development of a methodology where early changes in animal behaviour can be used to help identify sheep suffering ill effects of GIN parasitism, especially in a pre-clinical situation. It was hypothesised that lambs with even modest worm burdens will be less active, graze for less time and spend more time resting than those herd mates that were less heavily parasitized. The movement and behavioural activity of young and mature, infected and uninfected sheep were monitored in a series of studies using global positioning system (GPS) and tri-axial accelerometer sensors. Key behaviours were identified using machine learning techniques. Also assessed was the influence of host genotype on movement activity. Accelerometry data accurately identified grazing, resting and walking activities of sheep. The sensors were able to identify the effects of GIN parasitism on movement and behaviour in sheep. Clear evidence was found that GIN were associated with reduced movement and overall activity in growing lambs, with reductions in time spent ‘grazing’ and ‘walking’ occurring concomitantly with increases in ‘resting’ activity, and before effects were recorded on growth rates. Host genotype also had an effect on movement activity of lambs in untreated sheep, but not in treated individuals. Adult sheep, however, showed no consistent changes in movement and behaviour associated with parasitism, as measured by faecal egg counts. Overall, the findings in this thesis have demonstrated the potential value in remote monitoring of sheep as a diagnostic marker to detect the generally subtle behavioural changes associated with changing GIN infection status. Such monitoring could therefore be used as the basis for deciding whether animals need to be treated with anthelmintic on the basis of individual need, and such decisions could be taken early, i.e. before animals have failed to grow adequately or started to manifest more overt signs of clinical illness such as weight loss

Complex Dynamics in Fed-Batch Systems: Modeling, Analysis and Control of Alcoholic Fermentations

Modeling and control of fed-batch fermentation processes has been a subject of great interest to realize high productivity and yields from the fermentation technique. The goal of this dissertation was to gain insights into how the complex dynamic behaviors exhibited in fed-batch fermentation systems affect the stability of standard single-loop as well as non-standard feedback control structures. Novel PID stability theorems were established to help construct the controller stabilizing regions

Mean and fluctuating velocity contours and acoustic characteristics of subsonic and supersonic jets

Shadowgraph photographs of subsonic and supersonic jet

The Role of Marketing in Corporate Competitiveness: Marketing Practice Analysis of Hungarian Companies

The objective of this article is to analyse the marketing practice of Hungarian companies. On the one hand, the role of marketing function in the company has been revealed, and on the other hand the relationship between marketing efforts and market performance has been investigated. In frame of the Hungarian Competitiveness Studies, 300 marketing executives were surveyed to rate the marketing practice of their companies, concentrating on branding, pricing policy, applied marketing channels and promotional activities. The results confirm that sophisticated marketing practice leads to higher business performance. Keywords: marketing tools, competitiveness, performanc

Hetkede killud : loov-praktiline lõputöö

Loov-praktiline lõputöö baseerub minu autorikontserdil “Hetkede killud”, kus Konguta Rahvamaja laulustuudio laululapsed, esitavad minu loodud laule. Repertuaar on stiililiselt varieeruv ning valikusse pääsesid lood, mis on esitajatele eakohased ning kõlaliselt lauljatele sobilikud. Töö kirjalikus osas annan ülevaate oma muusikalistest õpingutest ja tööst muusikaõpetajana, loov-praktilise lõputöö kontserdikava ülesehitusest, repertuaarist ja selle metoodilisest analüüsist, ettevalmistusprotsessist ja kontserdi ettekandmisest.https://www.ester.ee/record=b5238147*es

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La recherche en Educati

Enseignement Supérieur à l’université congolaise, Enseigner autrement : ici et maintenant!

La recherche en Educati

Science et sens commun… (A propos d’une étude ethnographique de l’indiscipline en classe)

Dans cet article, l’auteur offre le témoignage d’une démarche de recherche menée auprès des élèves et des enseignants d’un établissement scolaire qui, selon une approche ethnographique, s’est intéressée à l’étude de l’indiscipline en classe. D’après lui, l’élaboration d’un témoignage de ce genre est le retour à quelques enchantements, mais est aussi la rencontre avec certains doutes et maintes incertitudes. Le texte commence par exposer la construction de la problématique de l’enquête, puis explicite la conception et la mise en oeuvre du travail réalisé, et conclut, en présentant une réflexion sur la place et la nature de la théorisation dans ces études et sur la scientificité de la démarche de recherche