Made available in DSpace on 2017-07-10T17:47:55Z (GMT). No. of bitstreams: 1 Cristiani_Cavilhao.pdf: 435376 bytes, checksum: d7bdf3578b70b41b4f8a307fbfe5b476 (MD5) Previous issue date: 2013-09-13 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / It was aimed with this study to evaluate the different levels effect of feed restriction on performance, intake, digestibility and feeding behavior of feedlot finished lambs, besides the economic viability of this feed management type . For this, 24 Santa Inês male lambs were used, to 20.00 ± 0.32 kg body weight distributed in an entirely randomized design in four different treatments. The experiment was divided into periods of 64 days each, in the first called restriction, the animals were assigned to treatments: no restriction (ad libtum intake with 10% leftovers), restriction of 20, 40 and 60 % in relation to intake of the control treatment. In the second period, called refeeding period, the diet was offered ad libitum to all animals in the experiment. Data were subjected to the variance analysis F test and when significant differences were detected, the regression analysis was used to study the food restriction levels. All statistical procedures were evaluated at 5 % probability. Feed restriction affected negatively the animals performance in all periods . There was a linear decrease in the intake of dry matter and nutrients throughout the experiment . No effects of dietary restriction on eating behavior were identified, except for time spent with feeding that was significantly reduced . The apparent digestibility of dry matter and nutrients did not differ statistically , except in the fiber digestibility in neutral detergent that linearly increased in the restrictive period with the imposed restriction levels . The food restriction management is economically viable in feedlot lambs production for 128 days / Objetivou-se com este trabalho avaliar o efeito de diferentes níveis de restrição alimentar sobre o desempenho, consumo, digestibilidade e comportamento ingestivo de cordeiros terminados em confinamento, além da viabilidade econômica deste tipo de manejo alimentar. Para tanto, foram utilizados 24 cordeiros machos Santa Inês, aos 20,00 ± 0,32 kg de peso corporal, distribuídos em delineamento inteiramente casualizado em quatro tratamentos distintos. O experimento foi dividido em 2 períodos de 64 dias cada, no primeiro chamado de restrição, os animais foram distribuídos nos tratamentos: sem restrição (consumo ad libtum com 10% de sobras), restrição de 20, 40 e 60% em relação ao consumo do tratamento controle. No segundo período, chamado de período de realimentação, a dieta foi ofertada ad libitum á todos os animais do experimento. Os dados foram submetidos ao teste F de análise de variância e quando detectadas diferenças significativas, a análise de regressão foi utilizada para estudo dos níveis de restrição alimentar. Todos os procedimentos estatísticos foram avaliados a 5% de probabilidade. A restrição alimentar afetou de maneira negativa o desempenho dos animais em todos os períodos avaliados. Houve redução linear no consumo de matéria seca e de nutrientes durante todo o experimento. Não foram identificados efeitos da restrição alimentar sobre o comportamento ingestivo, exceto no tempo despendido com alimentação que reduziu de forma significativa. A digestibilidade aparente da matéria seca e nutrientes não diferiu estatisticamente, senão na digestibilidade da fibra em detergente neutro que aumentou linearmente no período restritivo com os níveis de restrição imposta. O manejo de restrição alimentar é economicamente viável na produção de cordeiros confinados por 128 dias

Este trabalho tem como objetivo discutir a fome numa perspectiva geográfica. A importância do tema se deve ao fato de que a alimentação é fundamental para a manutenção da vida; portanto, essencial à existência. Assim, inferimos a fome como um processo constituído ao longo da nossa história, no caso específico do Brasil, o reflexo vigente de uma formação desigual. Refletir sobre a formação territorial de nosso país, ajuda-nos a apreender a formação sócioespacial brasileira. Essa discussão nos auxilia também a entender como a fome se revela no território usado brasileiro. A Geografia exibe os usos desiguais do território, com a extensão do meio técnico-científico-informacional que chega para alguns e continua a excluir muitos. Acontecimento este que amplia a perversidade decorrente, nesta contemporaneidade, do alijamento da maioria da população do meio referido anteriormente. Discutir a fome geograficamente é discutir também o uso do território não apenas pela produção, mas pelas possibilidades que todos devem ter de produzir alimentos, inclusive discutir a sua distribuição para aqueles que ainda passam fome. O território usado, portanto, se transforma numa poderosa categoria de análise social, importante argumento para a apreensão da fome como processo político, e não como fenômeno. / This paper aims to discuss hunger in a geographical perspective. The topic is important due to the fact that food is essential for the maintenance of life, so, essential to existence. Thus, we infer the hunger as a process consisting throughout our history, in the specific case of Brazil, the reflection effect of unequal formation. Reflecting on the territorial formation of our country, helps us to grasp the Brazilian socio-spatial formation. This discussion also helps us to understand how hunger is revealed in Brazilian territory. Geography displays the unequal uses of the territory, with the extension of the technicalscientific- informational arriving for some and continuing to exclude many. This event extends the resulting perversity, this contemporary, the jettisoning of the majority of the middle mentioned above. To discuss hunger geographically also means to discuss the use of the territory not only for production, but the possibilities that everyone should have to produce food, including discussing their distribution to those who are still hungry. Therefore, the territory which is used becomes a powerful category of social analysis, an important argument for the seizure of hunger as a political process, and not as a phenomenon.

Legalmente, foi implementado pelo Governo Federal, o Programa Nacional de Produção do Biodiesel (PNPB). Entretanto, sua produção gera o glicerol. Para os pesquisadores, caso disposto indevidamente, esse coproduto poderá acarretar problemas ambientais. Assim, se o intuito é alcançar a sustentabilidade com a implantação do biodiesel na matriz energética, tornase relevante sua adequada gestão, uma vez que não há controle sobre sua produção e destinação. Falhas de mercado geralmente coexistem com as chamadas falhas de regulação. Nesse contexto, o objetivo foi analisar alternativas de destinação do glicerol realizadas por produtores de biodiesel que podem contribuir no âmbito das medidas compensatórias e mitigadoras. Os métodos utilizados foram pesquisa bibliográfica, documental e de campo para se estudar a teoria e a prática que envolvem o tema. A análise de conteúdo foi realizada com o uso do software MAXQDA®. Além das unidades estudadas, compostas por grandes e pequenos produtores de biodiesel, foram entrevistados engenheiros químicos e pesquisadores na área. Como resultados tem-se que as alternativas de destinação do glicerol realizadas pelos pequenos produtores estudados parecem evidenciar alocação eficiente de recursos. Assim, dentre os aspectos sustentáveis, o econômico se destaca na forma de oportunidade de negócios e geração de renda para o pequeno produtor. Ao contrário, nos grandes produtores, uma vez que poderá demandar maiores custos de transação a destinação é ineficiente e transferida para terceiros. Assim, buscando perpetuar o sistema econômico e proteger o meio ambiente, espera-se que os resultados possam fornecer subsídios para a implantação de políticas que visem remediar ineficiências relacionadas à preservação ambiental e sustentabilidade nos negócios. / Legally, the Federal Government implemented the National Biodiesel Production Program (PNPB). However, its production generates glycerol. For researchers, if improperly disposed of, this co-product could lead to environmental problems. Thus, if the intention is to achieve sustainability with the implementation of biodiesel in the energy matrix, it becomes relevant its adequate management, since there is no control over its production and destination. Market failures generally coexist with so-called regulatory failures. In this context, the objective was to analyze which alternatives of destination of glycerol carried out by biodiesel producers can contribute in the scope of the compensatory and mitigating measures. The methods used were bibliographic, documentary and field research to study the theory and practice that involve the theme. Content analysis was performed using MAXQDA® software. In addition to the units studied, composed of large and small biodiesel producers, were interviewed chemical engineers and researchers in the area. As a result, the alternatives of destination of the glycerol carried out by the small producers studied seem to show efficient allocation of resources. Thus, among the sustainable aspects, the economic stands out in the form of business opportunity and income generation for the small producer. On the contrary, in large producers, the destination is transferred to third parties, since it may demand higher transaction costs. Thus, a system is proposed to encourage, discipline and facilitate alternatives that may contribute to the perpetuation of the economic system in conjunction with environmental protection, attributing functionality to compensatory and mitigating measures. It is hoped that the results could contribute to the implementation of policies aimed at increasing subsidies, especially for small producers.

The present study investigates communicative strategies used by a group of four upper-secondary L2 learners of English. To be able to reach this goal, I have recorded and transcribed a conversation between these students in order to detect natural communication. The communicative strategies I have looked for were: pauses and hesitations, questions, code-switching and message abandonment. Previous research on communicative strategies is divided into two different fields. These two approaches define and classify communication strategies as either interactional or psycholinguistic.  The definition and classification of communicate strategies depends viz. on what kind of approach is used.

Denna studies huvudsakliga syfte är att undersöka hur studie- och yrkesvägledarnas yrkesutövning och kompensatoriska arbete påverkas av den kommunala styrningen i tre olika kommuner. Frågor som belyses är hur kommunernas policydokument lyfter fram vägledningens betydelse för kompensatorisk vägledning och hur vägledarna uppfattar styrningens påverkan. Metod som använts är tredelad, datainsamling från kommunernas styrningsdokument, enkäter till vägledare på gymnasier och grundskolor och intervjuer med två vägledare i respektive kommun. Resultatet visar att skillnader förekommer mellan kommuner, att studie- och yrkesvägledningen inte behandlas specifikt i kommunala policydokument och att styrningen ger en stark påverkan av vägledarnas möjligheter att arbeta kompensatoriskt. I två av studiens tre kommuner har steg tagits för organisatoriska ändringar och visade på ökad fokus på vägledningen. En av tre kommuner hade begränsade resurser vilka hade en direkt inverkan på, och begränsade, möjligheterna till kompensatorisk vägledning. / The main purpose of this study is to investigate what effect the municipal governance have on study- and career counselors professional practice and on their compensatory work in three different municipalities. Research is made on how, and if, the municipality policy documents mention counseling practice in the compensatory work at schools and how the study- and career counselor perceive the effects of governance. The method used is triangular, data collection from municipal policy documents, using questionnaires to career- and study counselors at high and elementary schools and interviews with two counselors in each municipality. The results show differences between the municipalities and that study and career counseling is not specified in the municipal policy documents. It also shows that the governance has a strong influence on counselors’ opportunity to work compensatory. Two out of three municipalities show that steps had been taken for organizational changes and indicated an increased focus on career-and study counseling. One of the three municipalities had limited resources which had a direct impact on, and limited the practice, of compensatory work.

Abstract The area of traditionally managed semi-natural meadows is declining throughout Europe. Knowledge of how to restore their species richness is urgently needed. Community manipulations by means of grazing and mowing and, on the other hand, knowledge of species-level responses as well as the responses of functional plant groups to management may help in planning appropriate restoration tools. The restoration of species richness was studied in two community-level experiments: in a sheep grazing experiment and in a mowing experiment. Three species-level studies were conducted to test the compensatory capacity of monocarpic, herbaceous plants (Gentianella amarella, Erysimum strictum, Euphrasia stricta) to simulated herbivory (10–50% of stem being cut). The perennial Linaria vulgaris was used to study whether there is any benefit of clonal integration in the tolerance of simulated herbivory. This topic was studied in a growth experiment and a 13C tracer study. In both grazing and mowing experiments, small herbs gained more space, while the dominant tall herbs subsided. The species number increased by 30% on the grazed plots, but mowing did not affect species richness, probably indicating seed limitation. At sites of this kind, seed addition could be used to promote restoration. Functional plant groups appeared to be useful in predicting the effects of grazing on plant communities. Early season grazing and mowing seem to be proper management tools in overgrown/degraded meadows. In species-level studies, all the species had relatively good compensatory capacity to repair small damage. Overcompensation was observed in response to apical damage, especially when the growing conditions were favourable, supporting the compensatory continuum hypothesis. The studied monocarpic plant species may share a common unbranched growth form where incidental apical damage leads to activation of uninitialized meristems and slight overcompensation. These responses may represent consequences of adaptation to above-ground competition, rather than adaptation to predictable herbivory. In Linaria, damaged ramets were not supported, but the neighbouring ramets seemed to compete with each other for root resources. While growing in disturbed habitats, it is more profitable for this species to invest in new ramets. The present studies showed that, while the appearance and structure of a traditional grassland rich in small-growing herbs can be restored in five years, it is more difficult to increase species diversity by mere mowing or grazing. Knowledge of the tolerance of individual species for herbivory could provide useful information for planning management practices. More studies on the effects of different management tools on different meadow types are urgently needed for the maintenance of the diversity of these valuable environments. / Tiivistelmä Perinteisellä tavalla hoidettujen luonnonniittyjen pinta-ala vähenee kaikkialla Euroopassa. Tarvitsemme enemmän tietoa siitä, miten näiden elinympäristöjen lajiston monimuotoisuus voitaisiin turvata. Tietämys laidunnuksen ja niiton vaikutuksesta kasviyhteisöihin ja toisaalta yksittäisiin kasvilajeihin tai toiminnallisiin kasviryhmiin voi auttaa tehokkaiden hoito- ja ennallistamistapojen löytämisessä. Tässä työssä tutkittiin niittyjen lajirikkauden palauttamista kahdessa yhteisötason kokeessa: lammaslaidunkokeessa ja kokeessa, jossa eri niittotapojen vaikutuksia selvitettiin. Kolmessa lajitason kokeessa testattiin monokarppisten ruohokasvien (rantaukonnauris, horkkakatkero, ketosilmäruoho) kompensaatiokykyä simuloituun herbivoriaan (10–50 % varresta poistettiin). Monivuotista kannusruohoa käytettiin tutkittaessa onko klonaalisesta integraatiosta hyötyä herbivorian siedossa. Tätä selvitettiin kasvukokeella ja hiili-13-merkkiainekokeella. Sekä laidun- että niittokokeessa matalat ruohokasvit saivat kasvutilaa korkeiden ruohojen valta-aseman vähentyessä. Laidunnus lisäsi lajimäärää 30 % koealaa kohti, mutta niitto ei vaikuttanut lajirikkauteen. Molemmissa kokeissa kasviyhteisö oli luultavasti siemenrajoitteinen. Tällaisissa kohteissa siementen lisäystä voitaisiin käyttää ennallistamiskeinona. Toiminnalliset kasviryhmät olivat käyttökelpoisia ennustettaessa laidunnuksen vaikutuksia kasviyhteisöön. Aikaisin kasvukaudella tapahtuva niitto/laidunnus näyttää sopivalta hoitokeinolta umpeenkasvaneilla niityillä. Lajitason kokeissa kaikki tutkitut kasvilajit kykenivät melko hyvin kompensoimaan vähäisiä vaurioita. Ylikompensaatiota havaittiin vasteena kärkivaurioihin erityisesti, kun kasvuolot olivat edulliset. Tämä tuki ns. kompensaatiojatkumohypoteesiä. Tutkituilla lajeilla voi olla yhtenäinen haaraton kasvumuoto, jossa ajoittaiset kärkivauriot johtavat lepotilassa olevien silmujen aktivoitumiseen ja lievään ylikompensaatioon. Nämä vasteet voivat olla seurausta sopeutumisesta valokilpailuun pikemmin kuin sopeutumisesta ennustettavissa olevaan herbivoriaan. Kannusruoholla vaurioituneita versoja ei autettu, vaan kloonin sisällä versot näyttävät kilpailevan keskenään juuriresursseista. Koska laji kasvaa häirityillä paikoilla, sille näyttää olevan edullisempaa investoida uusiin versoihin. Tämä työ osoitti, että vaikka perinteisen matalakasvuisen lajirikkaan niityn ulkonäkö ja rakenne voidaan palauttaa viidessä vuodessa, on vaikeampaa lisätä lajirikkautta pelkän niiton tai laidunnuksen avulla. Tietämys yksittäisten kasvilajien vasteista biomassan menetykseen voi auttaa sopivien hoitotapojen suunnittelussa. Lisää kokeita eri hoitotapojen vaikutuksista ja eri niittytyypeillä tarvitaan pikaisesti näiden arvokkaiden elinympäristöjen monimuotoisuuden ylläpitämiseksi.

Title: Changes in the locomotor apparatus due to an injury with permanent consequences Objectives: The aime of the diploma thesis is to define changes in motor system of chosen persons after injury using classic methods often used in physiotherapy. In addition, it presents some of the options of therapy and self-therapy, education and reeducation in the area of the client's behavior towards his health. Methods: This diploma thesis is formed with use of qualitative research. It is a pilot study focused on five persons with permanent consequences in motor system. The content of examination is an anamnesis, an ori- entational static examination, an examination of shortened muscles, en examination of muscle strenght, an evaluation of posture and body distances. All above were meassured every 3 - 4 months, when the changes in body posture due to premanent consequences are ob- served. Results: All data are processed using tables and graphs. Results has shown an improvement in all clients in different degree. Improvement in postu- re and activation of coremuscles. Excercises also improved stere- otype in breathing. Study has also shown importance of clienťs active cooperation to achieve the best results. Keywords: Locomotor apparatus, injury, permanent consequences, physical activities, hypoactivity, type...

Antibiotic resistance in bacteria is acquired through spontaneous chromosomal mutations or horizontal gene transfer. In the absence of antibiotics, resistant mutants generally show reduced fitness due to compromised growth rate, competitive ability and virulence compared to their antibiotic-sensitive ancestors. The focus of my research is to dissect the molecular underpinnings of the variations in the fitness cost of chromosomal antibiotic resistance using a systems-level approach. From an evolutionary perspective, my research aims are to understand how the fitness cost influences adaptation in resistant populations in an antibiotic-free environment. Using rifampicin resistance in Pseudomonas aeruginosa as a model, my work shows that most of the variation in the fitness cost of rifampicin resistance can be attributed to the direct effect of rifampicin resistance mutations on transcriptional efficiency. Through RNA-Seq transcriptome profiling, I demonstrate that global changes in gene expression levels associated with resistance mutations are surprisingly subtle, suggesting that the transcriptional regulatory network of P. aeruginosa is robust against compromised transcriptional efficiency. Using experimental evolution and whole-genome sequencing, my work reveals a systematic difference in the genetic basis of adaptation in mutants that were propagated in the absence of antibiotics. During compensatory adaptation, resistant mutants can recover the fitness cost of resistance by fixing second-site mutations that directly offset the deleterious effects of resistance mutations. Amongst resistant mutant populations with low fitness costs, general adaptation limits compensatory adaptation, which is most likely to be due to the rarity of compensatory mutations and clonal interference. Far from being the most ubiquitous mechanism in the evolution of resistance, compensatory adaptation is the exception that is more likely to be observed in resistant mutants with high fitness costs. In addition, I applied key elements of the integrative experimental approach developed in this work to dissect the molecular basis of the fitness cost associated with carriage of the pNUK73 small plasmid in P. aeruginosa, which carries the rep gene encoding a plasmid replication protein. My results confirmed that rep expression generates a significant fitness cost in P. aeruginosa and demonstrate how the molecular origins of the fitness cost of resistance can be dissected in a different biological context.

At a nexus between translation studies and didactics, the teaching of sight translation within the parameters of a foreign language course has as its primary aim to improve the communication skills of foreign language learners in general and of French learners at the University of Pretoria in particular. Contrary to the communication process in their first and second languages, students who try to speak a foreign language such as French are unable to express their thoughts freely. To compensate for their insufficient language knowledge and intuition, they tend to rely on their other languages as a reference for all communication. Although this natural reflex is part of the learning process, students' attempts to transfer words, phrases, and rules directly from one language to another can be detrimental to language performance. The problem does not lie in the fact that they translate mentally before speaking, but that they tend to translate literally. This is a highly inefficient communication strategy that results in a non-idiomatic, imperfect reflection of students’ actual knowledge of language. Unlike the above-mentioned mental transcoding and the so-called pedagogical translation generally practiced in the language class, the interpretive translation approach focuses on the reexpression of the meaning of the original text. This professional translation approach should be applied to all translation, including translation in the language class. Although the purpose is not to train professional translators or interpreters, students still need to learn to translate intelligently, whether verbally or mentally, without literally reproducing their reference languages. Since students are even more tempted than professionals to rely on the source language due to their limited language knowledge, they should explicitly learn to look for alternative means of expression available to them instead of transcoding this language. Sight translation is a very economical technique to teach this approach in language classes, as students learn to translate in their own words, using all their communication skills. Students learn how best to convey the meaning of the source text with the limited vocabulary and grammar skills at their disposal. When speaking, they also focus on the meaning of their utterances and use compensatory strategies when faced with a language problem, instead of copying from their reference languages or avoiding the problem altogether by switching to another language. In the space of little more than a year, the majority of the forty-four students who participated in the empirical research learned to communicate in a natural and authentic manner without undue interference from their other languages (mainly English). Those who have mastered the approach increasingly use efficient strategies to overcome language shortcomings, thus abandoning formal transfer to the benefit of their oral expression. In addition, a small number of talented students were identified to engage in further specialised translation and interpretation training. In conclusion, sight translation teaching in the classroom proved to be a highly beneficial method to improve translation and communication skills among French foreign language learners in the multicultural environment of the University of Pretoria. / Thesis (DLitt(French))--University of Pretoria, 2008. / Modern European Languages / DLitt / unrestricted

This thesis reports on a critical, ethnographic investigation into the reading practices of a group of 14 foundation year students at Rhodes University in 2002. The university had identified all the student-participants as 'underprepared' for university learning: they were from poor, socio-economic backgrounds, used English as an additional language, and had been educated in township or rural schools. Using the Socio-cultural model of literacy (Heath, 1984; Gee, 1990 & Street, 1993), the study explores the culturally-shaped attitudes and assumptions about reading that the students brought with them into a tertiary learning context from their homes, communities and schools. It reports on their subsequent efforts to become academic readers in the disciplinary context of History. Framing Theory (Reid and MacLachlan, 1994) was employed to analyse the kinds of matches and mismatches that arose between the students' frames about the nature and purpose of reading, and those implicitly accepted as normative by teachers in the History department. It accounts for the students' difficulties in achieving epistemological access in terms of a conflict of frames: both the students and their teachers usually failed to recognise each others' constructions about the nature and purpose of 'reading for a degree'. The study'S critical purpose required that its potential for generating emancipatory consequences needed to be investigated. Thus the study reports on how both sets of participants began to reframe their understanding of academic reading, by describing the ways in which they reflected on the findings in the final stages of the research process. / KMBT_363 / Adobe Acrobat 9.54 Paper Capture Plug-in