Nous avons entrepris la caractérisation de la protéine prion pathologique par Western blot à partir d’isolats de petits ruminants et de bovins atteints d’Encéphalopathie Spongiforme Subaiguë Transmissible (ESST) afin d’identifier des signatures moléculaires divergeant de la signature associée à l’ESST affectant habituellement ces animaux ; la tremblante classique pour les petits ruminants et l’ESB classique (ESB-C) pour les bovins. Cette étude a permis d’évaluer la fréquence de phénotypes inhabituels et a contribué à envisager les formes d’ESB atypiques comme sporadiques. Ensuite la transmission des isolats de petits ruminants aux souris C57Bl/6 et TgOvPrP4 a permis d’une part de confirmer l’absence de contamination par l’agent de l’ESB, tout du moins pour les ovins, et d’autre part d’approfondir les connaissances sur la diversité des souches dans les isolats de tremblante. Les travaux de transmission aux souris C57Bl/6 des isolats bovins atteints d’ESB-H ont quant à eux conduit à la description de l’émergence d’une souche présentant les caractéristiques de l’ESB-C suggérant que la forme sporadique d’ESB-H puisse être à l’origine de la contamination initiale des bovins ayant conduit après recyclage par le biais des farines de viande et d’os à l’épizootie d’ESB-C / Molecular characterization using Western blot method has been carried out to identify unusual PrPres pattern from small ruminants and bovines TSE affected. Such analyse allow us to define the frequency of these unusual signature and contribute to consider BSE-H as sporadic form of ruminant TSE. Transmission studies from unusual sheep isolates in C57Bl/6 and TgovPrP4 mice firstly contribute to confirm that none of these sheep isolates was infected by BSE transmission. Secondly, strain characteristics observed through experimental transmission of unusual isolates and classical scrapie affected isolates show results that give some element about strain diversity in both scrapie types. Serial passages of H-BSE in C57Bl/6 mice show the emergence of a prion strain with features similar to classical BSE. Such findings might help to explain the origin of the classical BSE epizootic disease, which could have originated from this kind of sporadic form of BSE

Blends of poly butylene terephthalate (PBT) and polycarbonate (PC) form a very important class of commercial blends in numerous applications requiring materials with good chemical resistance, impact resistance even at low temperatures, and aesthetic and flow characteristics. PC and PBT are usually blended in a twin screw extruder (TSE). Product melt volume flow rate (MVR) is a property used to monitor product quality while blending the PC/PBT in a twin screw extruder. It is usually measured off line in a quality control laboratory using extrusion plastometer on samples collected discretely during the compounding operation. Typically a target value representing the desired value of the quality characteristics for an in-control process, along with upper and lower control limits are specified. As long as the MVR measurement is within the control limits, the sample is approved and the whole compounded blend is assumed to meet the specification. Otherwise, the blend is rejected. Because of infrequent discrete sampling, corrective actions are usually applied with delay, thus resulting in wasted material. It is important that the produced PC/PBT blend pellets have consistent properties. Variability and fault usually arise from three sources: human errors, feed material variability, and machine operation (i.e. steady state variation). Among these, the latter two are the major ones affecting product quality. The resulting variation in resin properties contributes to increased waste products, larger production cost and dissatisfied customers. Motivated by this, the objective of this project was to study the compounding operation of PC/PBT blend in a twin screw extruder and to develop a feasible methodology that can be applied on-line for monitoring properties of blends on industrial compounding operations employing available extruder input and output variables such as screw speed, material flow rate, die pressure and torque. To achieve this objective, a physics-based model for a twin screw extruder along with a MVR model were developed, examined and adapted for this study, and verified through designed experiments. This dynamic model for a TSE captures the important dynamics, and relates measurable process variables (screw speed, torque, feed rates, pressure etc.) to ones that are not being measured (material holdups and compositions at the partially and filled section along a TSE barrel). This model also provides product quality sensors or inferential estimation techniques for prediction of viscosity and accordingly MVR. The usefulness of the model for inferential MVR sensing and fault diagnosis was demonstrated on experiments performed on a 58 mm co-rotating twin-screw extruder for an industrial compounding operation at a SABIC Innovative Plastics plant involving polycarbonate – poly butylene terephthalate blends. The results showed that the model has the capability of identifying faults (i.e., process deviation from the nominal conditions) in polymer compounding operations with the twin screw extruder. For instance, the die pressure exhibited a change as a function of changes in raw materials and feed composition of PC and PBT. In the presence of deviations from nominal conditions, the die pressure parameters are updated. These die pressure model parameters were identified and updated using the recursive parameter estimation method. The recursive identification of the die pressure parameters was able to capture very well the effects of changes in raw material and/or composition on the die pressure. In addition, the developed MVR model showed a good ability in monitoring product MVR on-line and inferentially from output process variables such as die pressure which enables quick quality control to maintain products within specification limits and to minimize waste production.

Blends of poly butylene terephthalate (PBT) and polycarbonate (PC) form a very important class of commercial blends in numerous applications requiring materials with good chemical resistance, impact resistance even at low temperatures, and aesthetic and flow characteristics. PC and PBT are usually blended in a twin screw extruder (TSE). Product melt volume flow rate (MVR) is a property used to monitor product quality while blending the PC/PBT in a twin screw extruder. It is usually measured off line in a quality control laboratory using extrusion plastometer on samples collected discretely during the compounding operation. Typically a target value representing the desired value of the quality characteristics for an in-control process, along with upper and lower control limits are specified. As long as the MVR measurement is within the control limits, the sample is approved and the whole compounded blend is assumed to meet the specification. Otherwise, the blend is rejected. Because of infrequent discrete sampling, corrective actions are usually applied with delay, thus resulting in wasted material. It is important that the produced PC/PBT blend pellets have consistent properties. Variability and fault usually arise from three sources: human errors, feed material variability, and machine operation (i.e. steady state variation). Among these, the latter two are the major ones affecting product quality. The resulting variation in resin properties contributes to increased waste products, larger production cost and dissatisfied customers. Motivated by this, the objective of this project was to study the compounding operation of PC/PBT blend in a twin screw extruder and to develop a feasible methodology that can be applied on-line for monitoring properties of blends on industrial compounding operations employing available extruder input and output variables such as screw speed, material flow rate, die pressure and torque. To achieve this objective, a physics-based model for a twin screw extruder along with a MVR model were developed, examined and adapted for this study, and verified through designed experiments. This dynamic model for a TSE captures the important dynamics, and relates measurable process variables (screw speed, torque, feed rates, pressure etc.) to ones that are not being measured (material holdups and compositions at the partially and filled section along a TSE barrel). This model also provides product quality sensors or inferential estimation techniques for prediction of viscosity and accordingly MVR. The usefulness of the model for inferential MVR sensing and fault diagnosis was demonstrated on experiments performed on a 58 mm co-rotating twin-screw extruder for an industrial compounding operation at a SABIC Innovative Plastics plant involving polycarbonate – poly butylene terephthalate blends. The results showed that the model has the capability of identifying faults (i.e., process deviation from the nominal conditions) in polymer compounding operations with the twin screw extruder. For instance, the die pressure exhibited a change as a function of changes in raw materials and feed composition of PC and PBT. In the presence of deviations from nominal conditions, the die pressure parameters are updated. These die pressure model parameters were identified and updated using the recursive parameter estimation method. The recursive identification of the die pressure parameters was able to capture very well the effects of changes in raw material and/or composition on the die pressure. In addition, the developed MVR model showed a good ability in monitoring product MVR on-line and inferentially from output process variables such as die pressure which enables quick quality control to maintain products within specification limits and to minimize waste production.

Made available in DSpace on 2017-07-10T18:20:43Z (GMT). No. of bitstreams: 1 Jose Roberto Moreira.pdf: 6458715 bytes, checksum: a6e04a668d3d7fd1d947b67d059b94ea (MD5) Previous issue date: 2012-09-12 / ABSTRACT The judicialization of politics has inspired several scientific researches due to its novelty and consequences, and formed the agenda of contemporary political science. In this context, this study sought to investigate the influence of popular participation in seven trials judged by the STF and TSE in the case "ficha limpa ( clean slate"): RO 1.069-RJ, by TSE (decided in 2006); ADPF 144-DF, by STF (decided in 2008); CC 1120-26.2010-DF, TSE (decided in 2010); RE s 630.147-DF, 631.102-PA e 633.703-MG, by STF (decided in 2010 and 2011); and joint trial of ADC s 29 and 30, and finally ADI 4578, tried by STF (decided in 2012). The concept of hard case developed by Ronald Dworkin and Robert Alexy, as the one whose solution is not expressed in the code of laws, was adopted and argued that in cases like that the judge commonly stands before more than one decision rationally justifiable. The seven trials were typified as hard cases. A concept of popular participation was built for the research purposes, which brought together normative contributions of theoretical approaches of participatory democracy, deliberative and radical. To perform such investigation, the votes published in the trials were rated into four categories, according to the presence or absence of the citizen participation reference, if they referred to it as an argument and for what purpose: to defend ficha limpa ( clean slate ) or the independence that the court expressed in relation to it. In spite of the public participation seen in these processes, especially in the year 2008 and the following, the Supreme Court and the TSE did not stage political decisions in the analyzed trials, since they had ratified policy decisions that have been already taken by the Legislature. On the other hand, reviews of the trials revealed some votes in whose speech grounds contain a reference to popular participation in the judgments accomplished in 2010, 2011 and 2012. The main influence has been seen in the last trial, the ADC's 29 and 30 and ADI 4578, decided by the Supreme Court, where the number of votes in favor of the thesis of ficha limpa ("clean slate") filled with arguments containing references to popular participation, was higher. In this trial, ministers who used to defend the independence of the court in relation to this influence began to justify their votes in favor of "clean slate" in popular participation. Others simply left out the speech which preached that the court should be free of such interference. Therefore, remains concluded that popular participation has affected the outcome of the hard case "ficha limpa ( clean slate". / A judicialização da política inspirou várias pesquisas científicas pela sua novidade e consequências, tendo composto a agenda da Ciência Política contemporânea. Nesse contexto, esta pesquisa buscou investigar a influência da participação popular em sete julgamentos do STF e TSE no caso ficha limpa : RO 1.069-RJ, do TSE (julgado em 2006); ADPF 144-DF, do STF (julgado em 2008); CC 1120-26.2010-DF, do TSE (julgado em 2010); RE s 630.147-DF, 631.102-PA e 633.703-MG, do STF (julgados em 2010 e 2011); e julgamento conjunto das ADC s 29 e 30 e da ADI 4578, do STF (julgado em 2012). O conceito de hard case de Ronald Dworkin e de Robert Alexy, como aquele cuja solução não está expressa no código de leis, foi adotado e se argumentou que nele comumente o julgador está diante de mais de uma decisão racionalmente justificável. Os sete julgados foram tipificados como hard cases. Um conceito de participação popular foi construído para os fins da pesquisa, que aglutinou as contribuições normativas das correntes teóricas da democracia participativa, deliberativa e radical. Para a investigação, os votos publicados nos julgados foram classificados em quatro categorias, segundo estava presente ou ausente a referência à participação popular, se faziam referência a ela como argumento e para qual fim: fazer a defesa da ficha limpa ou da independência da corte em relação a ela. Apesar da participação popular vista nesses processos, principalmente no ano de 2008 e seguintes, o STF e o TSE nos julgamentos analisados não protagonizaram decisões políticas, tendo ratificado decisões políticas já tomadas pelo Legislativo. Por outro lado, a análise dos julgados revelou votos em cujo discurso de fundamentação há referência à participação popular nos julgamentos consumados em 2010, 2011 e 2012. A maior influência foi vista no último julgamento, das ADC s 29 e 30 e da ADI 4578, pelo STF, onde o número de votos em favor da tese ficha limpa com argumentos com referência à participação popular foi maior. Nesse julgado, Ministros que antes vinham defendendo a independência da corte em relação a essa influência passaram a justificar seus votos em defesa da ficha limpa na participação popular. Outros simplesmente abandonaram o discurso que pregava que a corte deveria ficar livre dessa interferência. Assim, concluiu-se que a participação popular influenciou no desfecho do hard case ficha limpa .

No description available.

Text in English with abstracts in English, Afrikaans and Tswana. / Academics in social sciences are increasingly conducting research in multilingual contexts. Researchers in the field of cross-language research agree that issues on the role of translators and translation are often neglected and even omitted in research reports, which may affect the trustworthiness of such a study. The aim of this study was to investigate the role of translators in cross-language qualitative research from the views of master’s and doctoral students who conducted cross-language qualitative research in psychology at a selected South African university. Exploratory qualitative research and methodology were deemed suitable for this study. Key participants were sampled through snowball sampling. Five postgraduates availed themselves to participate. Data were collected by semi-structured e-mail, telephone and/or face-to-face interviews. Semi-structured interviews were audio recorded and transcribed by the researcher after the interviews. As the number of available participants was limited, the researcher also sampled unpublished dissertations (5) and doctoral theses (2) to conduct document analysis. Transcripts were imported into ATLAS.ti™, whereafter the qualitative data were analysed by means of thematic data analysis. Five main themes emerged from the data. Themes from the transcripts as well as notes in the researcher’s reflective journal and relevant literature findings were collated. Finally, a critical discussion was provided. Key participants believed that translators may play a significant role in several stages of a cross-language qualitative study. Participants reported experiencing several translation challenges, namely: language barriers between them and their research participants; difficulty translating subject terminology from English into Afrikaans; and outdated bilingual scientific dictionaries. Findings also revealed that the credentials of the translator hired may have an impact, whether positive or negative, on the translation product. Reasons why translators may be excluded from a cross-language qualitative study were also highlighted. Firstly, although some of the participants reported that translators may be valuable in a cross-language study, all of them strongly asserted that they possessed high language competency, and therefore they deemed the inclusion of translators unnecessary. v It also emerged that qualitative researchers may need to be cognisant of ethical issues that may arise in a cross-language study. Translators may further be excluded as translation may not be suitable for the specific research design (for example, phenomenology). Finally, researchers may not have the financial means to hire translators. None of the key participants reported the language/translation challenges they experienced during their studies and the possible impact it may have had on the methodology or quality of data. They did not deem it an important aspect of their studies. In some of the dissertations and theses sampled, only the mother tongue of participants was often indicated but, in most cases, was discussed very superficially. These researchers mostly mentioned (as part of the biographic information) the language profile of their participants; that the data for that study were collected in either Afrikaans or English; and that the data were translated and analysed. Finally, although some of the sampled research reports were edited by professional language practitioners, translation and grammatical errors were clear throughout in the manuscripts. From this research it was clear that including translators in cross-language qualitative research in psychology is not a common practice in the South African context, and matters relating to translation and how challenges in this regard were dealt with are grossly neglected and mostly omitted in postgraduate research reports. To conclude, limitations of this study were highlighted, and recommendations for future translation research and practice were made. Keywords:; / Navorsing in sosiale wetenskappe word toenemend in veeltalige kontekste uitgevoer. Kruistaal kwalitatiewe navorsers is dit eens dat vraagstukke rondom die rol van vertalers en vertaling gereeld oor die hoof gesien word en selfs in navorsingsverslae uitgelaat word, wat uiteindelik die vetrouenswaardigheid van so ʼn studie mag affekteer. Hierdie studie het ten doel gehad om ondersoek in te stel na die rol van vertalers in kruistaal kwalitatiewe navorsing vanuit die oogpunt van meestersgraad- en doktorale studente wat kruistaal kwalitatiewe navorsing in sielkunde aan ʼn gekose Suid-Afrikaanse universiteit uitgevoer het. Eksploratiewe kwalitatiewe navorsing en metodologie is as geskik geag vir hierdie studie. Sleuteldeelnemers is deur middel van sneeubalsteekproefneming gekies. Vyf nagraadse studente het hulleself beskikbaar gestel om aan die navorsing deel te neem. Data is deur middel van semi-gestruktureerde e-pos-, telefoon- en aangesig-tot-aangesig-onderhoude ingesamel. Die aantal deelnemers wat aan die studie kon deelneem was beperk en daarom het die navorser ook ongepubliseerde verhandelings (5) en proefskrifte (2) ingesamel ten einde dokumentanalise uit te voer. Transkripsies is in ATLAS.ti™ ingevoer, waarna die kwalitatiewe data deur middel van tematiese data-analise ontleed is. Vyf hooftemas het uit die data gespruit. Temas uit die transkripsies sowel as die navorser se notas uit haar reflektiewe joernaal en relevante literatuurbevindinge is saamgevat, waarna ʼn bespreking gevolg het. Sleuteldeelnemers was van mening dat vertalers ʼn belangrike rol kan speel in verskeie fases van ʼn kruistaal kwalitatiewe studie. Volgens deelnemers het hulle verskeie vertaaluitdagings ervaar, naamlik: taalhindernisse tussen hulle (die navorser) en hul navorsingsdeelnemers; uitdagings om vakterminologie van Engels in Afrikaans te vertaal; en verouderde tweetalige vakwoordeboeke. Bevindinge het ook getoon dat die aangestelde vertaler se kwalifikasies ʼn impak mag hê, hetsy positief óf negatief, op die vertaalproduk. Redes waarom vertalers van ʼn kruistaal kwalitatiewe studie uitgesluit kan wees, is ook uitgelig. Ten eerste, hoewel enkele deelnemers meegedeel het dat vertalers in ʼn kruistaal kwalitatiewe studie waardevol kan wees, het alle deelnemers sterk benadruk dat hulle oor hoë taalvaardigheid beskik, en daarom het hulle die insluiting van vertalers in hul studies vii onnodig geag. Dit blyk ook dat kwalitatiewe navorsers bewus moet wees van etiese vraagstukke wat in ʼn kruistaal studie mag onstaan. Vertalers kan voorts uitgesluit word indien vertaling nie geskik is vir die spesifieke navorsingsontwerp nie (byvoorbeeld, fenomenologie). Laastens, navorsers beskik moontlik nie oor die finansiële middele om vertalers aan te stel nie. Geeneen van die sleuteldeelnemers het die taal- of vertaaluitdagings wat hulle in hul studies ervaar het, genoem nie en het ook nie gemeld wat die moontlike impak op die metodologie of kwaliteit van die data mag wees nie. Hulle het dit nie in hulle studies belangrik geag nie. In enkele gekose verhandelings en proefskrifte is die moedertaal van navorsingsdeelnemers in daardie studies aangedui, maar is meestal baie simplisties bespreek. Hierdie navorsers het grotendeels slegs die taalprofiel van hulle deelnemers genoem (as deel van die biografiese inligting); dat data in hulle studies in óf Engels óf Afrikaans ingesamel is; en dat die data vertaal en ontleed is. Laastens, hoewel sommige van die navorsingsverslae deur professionele taalpraktisyns geredigeer is, is vertaal- en grammatiese foute steeds deurgaans in die manuskripte opgemerk. Dit blyk duidelik uit dié navorsing dat die insluiting van vertalers in kruistaal kwalitatiewe navorsing in sielkunde nie algemene praktyk in die Suid-Afrikaanse konteks is nie, en sake wat verband hou met vertaling en hoe uitdagings in dié verband hanteer is, word grootliks nagelaat en meestal in nagraadse navorsingsverslae uitgelaat. Ten laaste is beperkings van die studie uitgelig, en aanbevelings is gemaak vir toekomstige vertaalnavorsing en -praktyk. / Batlhatlheledi mo dithutong tsa maaranyana a dikgolagano gareng ga batho ba ba dirang patlisiso ka ga bopuontsi, ba ntse ba oketsega go feta. Babatlisisi mo tikologong ya dipuo tse di fapaaneng ba dumela gore mabaka a a ka ga karolo e e tsewang ke baranodi le diphetolelo, mo nakong e ntsi e tlogelwa kwa morago mme le gone ga e akaretswe gotlhelele mo dipegong tsa patlisiso. Seno, se ka ama boikanyego jwa serutwa. Maikaelelo a serutwa seno e ne e le go batlisisa karolo e e tsewang ke baranodi mo patlisisong ya dipuo tse fapaaneng e e itsegeng ka la ‘qualitative’, go tswa mo dikakanyong tsa baithuti ba dithuto tsa Masetase le tsa Bongaka, ba ba dirileng patlisiso tsa dipuo tse di fapaaneng mo patlisisong e e itsegeng ka la ‘qualitative’, mo go saekholoji mo yunibesiting e e kgethilweng mo Aforikaborwa. Patlisiso e e ka ga ditlhaloso tsa mabaka a a batlisisiwang, ya go utulola mmogo le mokgwa wa go batla tshedimosetso, di fitlhetswe e le tse di siametseng serutwa seno. Batsayakarolobagolo ba patlisiso ba ne ba kgethiwa mme ba ne ba tshwanetse go batla batsayakarolo bangwe ba go tla dirwang diteko ka bone. Batsholadidikerii tsa dithuto tse dikgolwane ba le batlhano ba ne ba ithaopa go tsaya karolo. Tshedimosetso e kgobokantswe ka imeile ya seka-thulaganyo, mogala le/kgotsa dipuisano tsa go lebelana ka matlho. Ditherisano tsa seka-thulaganyo di ne tsa gatisiwa mme tsa kwalololwa ke mmatlisisi morago ga dipuisano. Ka ntlha ya fa palo ya batsayakarolo e ne e le e nnye, mmatlisisi o ne a kgobokanya dikao di le 5 go tswa mo dithutong tsa Masetase, le tse 2 go tswa mo go tsa Bongaka, tse di sa phasaladiwang di kanoka. Dikgatiso di ile tsa tsengwa mo teng ga ATLAS.ti™, mme morago tshedimosetso e e ka ga ditlhaloso e ne ya kanokwa ka mokgwa wa kanoko ya dithitokgang. Go tswa mo tshedimosetsong, go ne tlhagelela dithitokgang di le tlhano. Dithitokgang go tswa mo dikgatisong mmogo le dikwalwa go tswa mo jenaleng ya dikakanyo tsa mmatlisisi le diphitlhelelo go tswa mo dipuisong tsa patlisiso, di ne tsa kgobokanngwa. Mo bokhutlong, go ne ga nna le puisano e e nang le dikakanyo tse di farologaneng. Batsayakarolo-bagolo ba na ba dumela gore baranodi ba ka tsaya karolo e e botlhokwa thata mo thutong ya ditlhaloso e e ka ga dipuo tse di fapaaneng. Batsayakarolo ba begile fa ba nnile dikgwetlho tsa diphetolelo, e leng: dikganedi tsa puo magareng a bone le batsayakarolo ba bone mo patlisisong; bothata jwa go fetolela mareo a serutwa go tswa mo Seesimaneng go ya kwa Seaforikanseng; le dibukantswe tse dipuopedi tsa bonetetshi tsa bogologolo. Diphitlhelelo di supile gape gore bokgoni jwa moranodi yo o hirilweng bo nnile le tshusumetso, E ka ne e le e e siameng kgotsa e e sa siamang, mo go lereng phetolelo. Mabaka a goreng baranodi ba ka tlogelwa kwa morago mo serutweng se se ka ga dipuo tse di fapaaneng, le one a ne a tlhagisiwa. Sa ntlha, le fa ba bangwe ba batsayakarolo ba begile gore baranodi ba ka nna botlhokwa thata mo serutweng se se ka ga dipuo tse di fapaaneng, botlhe ba ne ba dumela gore ba na le bokgoni jwa maemo a a kwa godimo jwa puo, mme ka lebaka leo, ba bone gore go akaretsa baranodi ga go tlhokege. Go ne ga tlhagelela gape gore babatlisisi ba dipatlisiso tse di ka ga ditlhaloso, ba ka tshwanela go ela tlhoko mabaka a a amogelegang ka sengwe se tsewang se siame kgotsa se se siama, a a ka tlhagelelang mo serutweng se se ka ga dipuo tse di fapaaneng. E bile baranodi ba ka nna ba se akarediwe ka gonne diphetolelo di ka fitlhelwa se nne matshwanedi mo mekgweng le mefuta e e dirisiwang go kgobokanya le go kanoka tshedimosetso ka ga dipatlisiso (sekao, serutwa se se ka ga kakanyo kgotsa maitemogelo). Mo bokhutlong, gongwe babatlisisi ba ka se nne le madi a go thapa baranodi. Ga go ope wa batsayakarolo bagolo yo o begileng dikgwetlho tsa puo/phetolelo tse ba kgatlhaneng le tsona mo dithutong tsa bone le le seabe se di nnileng le sona mo mokgweng wa go batla tshedimosetso kgotsa boleng jwa tshedimosetso. Ga ba a bona seno e le ntlha e e botlhokwa mo dithutong tsa bone. Mo dithutong tsa masetase le tsa bongaka tse di kgobokantsweng, go ne ga tlhagisiwa fela puogae ya batsayakarolo, mme mo mabakeng a le mantsi, puisano ka ga yona e ne e se boteng. Babatlisisi bano ba kaile go le gantsi (jaaka karolo ya tshedimosetso ka ga motho) ka ga puo e e buiwang ke batsayakarolo; gore tshedimosetso ka ga serutwa seo e kgobokantswe ka puo ya Seaforikanse kgotsa Seesimane; le gore tshedimosetso e ne ya fetolelwa mme ya kanokwa. Mo bokhutlong, le fa diphoso tse di ka puo mo go tse dingwe tsa dipegelo tsa dipatlisiso di ne tsa baakanngwa ke baitseanape ba ba dirang ka puo, diphoso tsa phetolelo le thutapuo di nnile teng mo dikwalweng. Go tswa mo patlisisong eno, go ne ga itshupa gore go akaretsa baranodi mo patlisisong ya dithuto tse di ka tlhaloganyo, e e ka ga ditlhaloso mo dipuong tse di fapaaneng, ga se se se diriwang ka tlwaelo go ya ka Seaforikaborwa. Le gona, mabaka a a amanang le phetolelo le mokgwa o dikgwetlho di neng tsa rarabololwa ka teng, di kgatolositswe e bile ga di akarediwe mo dipegelong tsa dipatlisiso tsa dithuto tse di kgolwane. Go konosetsa, dikganedi tsa serutwa seno di ne tsa supiwa mme ga newa dikgakololo ka ga dipatlisiso le tiriso ya phetolelo mo isagong. / Linguistics and Modern Languages / M.A.(Linguistics)

This study is environmental in nature, occurring within a series of nested frameworks, namely school role players, sustainable development and greening schools. From a South African context, the day-to-day operations of the school activities and programmes are not solely the principal’s responsibility. It is a shared responsibility among every person involved in an educational school context. The principal has the overall responsibility of leading and professionally managing the school through the school management team (SMT) and is accountable to the employer, which is the provincial Head of the Department of Education. The principal is also accountable to the community through the school governing body (SGB), which consists of elected representatives from the school community. This study was guided by these research questions: (1) What is the nature of the knowledge of the role players in the Tshwane North District schools about greening the school? (2) How do the contextual factors in the Tshwane North District schools shape the greening of the school? The SMT and SGB are key role players and gatekeepers at the school level. They were purposefully and conveniently sampled at three Tshwane North District (TND) primary schools in Gauteng Province of South Africa according to their locations (rural, township, urban). They participated in focus group interviews, observations and document analysis. The study, qualitative in nature, explored strengths, weaknesses, opportunities and threats in greening the school for sustainable development. The two role players might not be knowledgeable about green and sustainable development, however given the opportunity to explore their knowledge, provided insight about greening schools and how to possibly change to more sustainable practices. Data collected was subjected to thematic content analysis. The results revealed that schools’ funds are swiftly depleted on resources such as water, energy, transportation, paper, stationary, maintenance and equipment, to name but a few. The results also revealed limited green culture across institutions, due to little knowledge of greening and sustainability practices by school role players. This was attributed to a lack of policy framework by schools which was exacerbated by a lack of capacity building from expertise in greening schools for sustainable development. / Hierdie studie is omgewings van aard wat plaasvind binne 'n reeks nes raamwerke, naamlik skoolrolspelers, volhoubare ontwikkeling en vergroening van skole. Uit 'n Suid-Afrikaanse konteks is die dag-tot-dag-bedrywighede van die skoolaktiwiteite en -programme nie net die skoolhoof se verantwoordelikheid nie. Dit is 'n gedeelde verantwoordelikheid onder elke persoon wat in 'n opvoedkundige skoolverband betrokke is.Die skoolhoof het die oorhoofse verantwoordelikheid om die skool deur die skoolbestuurspan (SUT) te lei en professioneel te bestuur en is verantwoordbaar teenoor die werkgewer, wat die provinsiale hoof van die departement van onderwys is.Die skoolhoof is ook deur die skoolbeheerliggaam (SGB) aan die gemeenskap verantwoordbaar, wat uit verkose verteenwoordigers uit die skoolgemeenskap bestaan.Die SMT en SGB is sleutelrolspelers en hekwagters op skoolvlak.Hulle is volgens hul plekke (landelike, township, stedelike) doelgerigte en gerieflik by drie Tshwane-Noord-distrikskole (TND) in Gautengprovinsie van Suid-Afrika gemonster.Hulle het deelgeneem aan fokusgroeponderhoude, waarnemings en dokumentanalise.Die studie, kwalitatiewe van aard wat daarop gemik is om sterk punte, swakhede, geleenthede en bedreigings te ondersoek om die skool vir volhoubare ontwikkeling te verging Die twee rolspelers is dalk nie kundig oor groen en volhoubare ontwikkeling nie, maar gegewe die geleentheid om hul kennis te ondersoek, het hulle 'n insig gegee oor groen skole en moontlik verandering aan volhoubare gedrag.Data wat ingesamel is, is aan tematiese inhoudsanalise onderwerp. Die bevindinge het aan die lig gebring dat skole se fondse vinnig uitgeput is op hulpbronne soos water, energie, vervoer, papier, stilstaande, instandhouding en toerusting om maar net 'n paar te noem.Die bevindinge het ook min kennis van vergroenings- en volhoubaarheidspraktyke deur skoolrolspelers geopenbaar.Dit is toegeskryf deur 'n gebrek aan beleidsraamwerke deur skole wat vererger is deur 'n gebrek aan kapasiteitsbou van kundigheid in die vergroening van skole vir volhoubare ontwikkeling. / Thutong ena ke ea tikoloho e hlahang ka hara letoto la meralo, e leng, ba nkang karolo ea sekolo, ntshwetsopele ea nako e telele le likolo tse tala.Ho tsoa maemong a Afrika Boroa, tshebetso ea letsatsi le letsatsi ea mesebetsi ea sekolo le mananeo ha se feela boikarabello ba mosuoe-hlooho.Ke boikarabello bo arolelanoeng hara motho e mong le e mong ea amehang molemong oa sekolo sa thuto.Hlooho ea sekolo e na le boikarabello ka kakaretso ba ho etella pele le ho tsamaisa sekolo ka sehlopha sa botsamaisi ba sekolo (SMT) mme o ikarabella ho mohiri, e leng Hlooho ea profinse ea Lefapha la Thuto.Hlooho ea sekolo e boetse e ikarabella ho sechaba ka sehlopha se busang sa sekolo (SGB), se nang le baemeli ba khethiloeng ba tsoang sechabeng sa sekolo.SMT le SGB ke karolo ea bohlokoa le balebeli ba liheke boemong ba sekolo.Li ile tsa etsoa sampole ka morero le ka mokhoa o bonolo likolong tse tharo tsa mathomo tsa Tshwane North (TND) tse Profinseng ea Gauteng ea Afrika Boroa ho latela libaka tsa bona (mahaeng, metse-literopong, le toropong).Maloko a SMT le SGB ba nkile karolo lipuisanong tsa sehlopha se tsepamisitseng maikutlo, maikutlo le tlhahlobo ea litokomane.Boithuto bona, bo nang le boleng ba tlhaho bo ikemiselitse ho lekola matla, bofokoli, menyetla le litšokelo ho silafatsa sekolo bakeng sa ntshetsopele e tsitsitseng. Baetsi ba karolo ba babeli ba kanna ba se be le tsebo mabapi le ntshetsopele ea botala le bo tsitsitseng, empa ba fuoe monyetla oa ho lekola tsebo ea bona, ba fane ka leseli mabapi le likolo tse talafatsang mme mohlomong li fetohela mekhoeng e tsitsitseng.Boitsebiso bo bokelletsoeng bo ile ba hlahlojoa ka litaba tsa bona, mme liphuputso li senotse hore lichelete tsa likolo li felloa kapele ho lisebelisoa tse kang metsi, motlakase, lipalangoang, pampiri, tse emeng, tlhokomelo le lisebelisoa ho bolela tse maloa feela.Liphuputso li boetse li senotse tsebo e nyane ea tshebetso ea tikoloho le botsitso ke bankakarolo ba sekolo.Sena se bakiloe ke ho haelloa ke moralo oa leano ke likolo tse ileng tsa mpefatsoa ke khaello ea matlafatso ho tsoa boitseaning ba likolo tsa botala bakeng sa ntshetsopele e tsitsitseng / Environmental Sciences / D.Litt. Phil (Environmental education)

In the years since Mao Zedongs death, the people of China have been impelled to reevaluate the legacy and character of their still iconic leader. One of the more notable trends in this process of posthumous reevaluation is the tendency of some individuals and groups (most often, the rural peasantry) to interpret the deceased Chairman along theological lines, assuming that his still efficacious spirit will provide protection and good fortune to those who honour him.<p>In exploring the genesis (and continued salience) of these beliefs and practices, the present research delves into popular Chinese religiosity, exploring the porosity of the traditional cosmology, the centrality of perceived spiritual efficacy (ling) in determining the popularity of religious cults, and the theological and cosmological resonances extant within traditional understandings of political leadership. The body of metaphors, narratives, and tropes drawn from this historical overview are then applied to popular characterizations of Mao, with the resulting correspondences helping to explicate the salience of these modern religious interpretations. To further investigate the source of Maos persistent symbolic capital, the present research also explores the role of Cultural Revolution-era ritual in valorizing and reifying the power and efficacy then popularly ascribed to the Great Helmsmans person and teachings. This studys conclusion, in brief, is that participants in the posthumous cult of Mao are utilizing these cultural materials in both traditional and creative ways, and that such interpretations speak to the exigencies of life in the turbulent, ideologically ambiguous culture of modern China. <p>In performing this evaluation, the present research makes use of the standard phenomenological/historiographic approach of religious studies scholarship, though it is also informed by narrative methods, cognitive science, and current perspectives on the role and function of ritual. In particular, the analysis of Mao-era rituals (as a source of Maos continued symbolic potency) is performed using the cognivistic typology of ritual proposed by E. Thomas Lawson and Robert N. McCauley, with additional materials drawn from the research of Catherine Bell, Roy Rappaport, Pascal Boyer and Adam Chau.

In the years since Mao Zedongs death, the people of China have been impelled to reevaluate the legacy and character of their still iconic leader. One of the more notable trends in this process of posthumous reevaluation is the tendency of some individuals and groups (most often, the rural peasantry) to interpret the deceased Chairman along theological lines, assuming that his still efficacious spirit will provide protection and good fortune to those who honour him.<p>In exploring the genesis (and continued salience) of these beliefs and practices, the present research delves into popular Chinese religiosity, exploring the porosity of the traditional cosmology, the centrality of perceived spiritual efficacy (ling) in determining the popularity of religious cults, and the theological and cosmological resonances extant within traditional understandings of political leadership. The body of metaphors, narratives, and tropes drawn from this historical overview are then applied to popular characterizations of Mao, with the resulting correspondences helping to explicate the salience of these modern religious interpretations. To further investigate the source of Maos persistent symbolic capital, the present research also explores the role of Cultural Revolution-era ritual in valorizing and reifying the power and efficacy then popularly ascribed to the Great Helmsmans person and teachings. This studys conclusion, in brief, is that participants in the posthumous cult of Mao are utilizing these cultural materials in both traditional and creative ways, and that such interpretations speak to the exigencies of life in the turbulent, ideologically ambiguous culture of modern China. <p>In performing this evaluation, the present research makes use of the standard phenomenological/historiographic approach of religious studies scholarship, though it is also informed by narrative methods, cognitive science, and current perspectives on the role and function of ritual. In particular, the analysis of Mao-era rituals (as a source of Maos continued symbolic potency) is performed using the cognivistic typology of ritual proposed by E. Thomas Lawson and Robert N. McCauley, with additional materials drawn from the research of Catherine Bell, Roy Rappaport, Pascal Boyer and Adam Chau.

Evidence of large earthquakes occurring along the Pacific Northwest coast is reflected in coastal stratigraphy from Oregon to British Columbia, where there also exists an extensive archaeological record of Native American occupation. Tse-whit-zen, a large Native American village dating between 1824 and 54 cal B.P. located on the Olympic Peninsula of Washington State, was excavated with exceptionally fine stratigraphic control allowing for precise comparison of natural and cultural records. Here I report on the >10,000 fish remains from one 2x2 m excavation block; this assemblage spans one earthquake event, allowing study of changes in relative taxonomic abundance through time that may coincide with earthquakes or other environmental changes. Results indicate use of a wide range of marine fish taxa including various sculpins (Cottidae), flatfish (Pleuronectiformes), herring (Clupea pallasii) and salmon (Oncorhynchusspp.). This illustrates a highly diverse diet throughout occupation, though relative abundances of more offshore taxa decrease through time in favor of some nearshore taxa, possibly indicating the presence of a coseismic event. This thesis serves as part of a pilot study for a collaborative project that is underway. This larger project addresses human response to both gradual and abrupt environmental change through the analysis of all classes of Tse-whit-zen faunal remains, which provide a link to impacts on animal populations and in turn human subsistence.