Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / A expansão da cultura da palma de óleo nas áreas já desflorestadas da Amazônia legal é reconhecida como uma excelente alternativa para a produção de óleo para fins alimentícios e energéticos. O estado de Roraima apresenta as condições edafoclimáticas adequadas para seu desenvolvimento e introdução na estrutura da agricultura familiar. Objetivou-se com este trabalho desenvolver sistemas de cultivos nas entrelinhas da palma de óleo em área de floresta alterada, durante o período inicial de desenvolvimento da cultura, bem como, avaliar o potencial produtivo de três cultivares de palma de óleo em áreas de savana e floresta alterada de Roraima. Foram avaliados diferentes experimentos e conduzidos em áreas de floresta alterada e savana de Roraima. Para os sistemas de cultivo consorciados com palma de óleo o delineamento foi em blocos casualizados com três repetições, sendo utilizado oito tratamentos compostos por: palma de óleo x banana x feijão caupi; palma de óleo x abacaxi; palma de óleo x mandioca; palma de óleo x feijão caupi x milho; palma de óleo x milho x mandioca; palma de óleo x feijão caupi; palma de óleo x amendoim e palma de óleo em sistema solteiro. Para o desempenho produtivo das três cultivares de palma de óleo o delineamento foi em blocos casualizados com seis repetições e três tratamentos em dois ambientes. No primeiro experimento foi avaliado o desenvolvimento vegetativo da palma de óleo por meio da circunferência do coleto, comprimento da folha 9, largura e espessura do ráquis, número de folíolos da folha 9 e número de folhas emitidas por planta aos 02 e 18 meses após o plantio (local A) e aos 12 e 28 meses após o plantio (local B). Por outro lado, nas avaliações das cultivares BRS C-2528, BRS C-3701 e BRS C-2301 da palma de óleo foram realizadas análises conjuntas dos períodos de 4 a 6 anos de idade, quanto ao número de cachos ha-1, peso médio e produção total de cachos ha-1. Conclui-se que os sistemas que favoreceram o crescimento vegetativo da cultura da palma de óleo foram os sistemas consorciados com feijão caupi x milho, amendoim e mandioca, mostrando-se também economicamente viáveis e podendo ser indicados como alternativa económica para produção de palma de óleo voltada para agricultura familiar. As cultivares de palma de óleo no ambiente de floresta alterada, apresentaram desempenho produtivo superior ao obtido no ambiente de savana. / The expansion of oil palm cultivation in already deforested areas of Amazonia is recognized as an excellent alternative for the production of oil for food and energy purposes. The state of Roraima has the appropriate environmental conditions for its development and introduction in the structure of family farming. The objective of this work is to develop systems of crops between the rows of oil palm in an area of disturbed forest, during the initial period of development of culture, as well as evaluate the productive potential of three intraspecific varieties of oil palm in areas of savanna and forest changed from Roraima. To achieve the objectives were different and conducted experiments in areas of disturbed forest and savannah of Roraima. For intercropping systems with cultivation of palm oil had a randomized block design with three replications, and treatments for the compounds: palm oil x banana x cowpea; palm oil x pineapple; palm oil x cassava; oil palm x cowpea x maize; oil palm x cassava x maize; oil palm x cowpea; oil palm x peanuts and palm oil in single system. For the productive performance of three cultivars of palm oil had a randomized with six replications and three treatments in two blocks environments. In the first experiment evaluated the vegetative development of oil palm through the girth circumference, 9 leaf length, width and thickness of the rachis, number of leaflets leaf 9 and number of leaves per plant issued at 2:18 months after planting ( site A) and at 12 and 28 months after planting (Site B) . Moreover, evaluations of BRS C - 2528, 1 BRS C - 370 and BRS C - 2301 of oil palm joint analyzes of the periods 4-6 years old , as the number of clusters ha-1 were performed, weight average and total production of ha-1 clusters. We conclude that systems favored the vegetative growth of the crop of oil palm were the cowpea intercropping systems with x maize, groundnuts and cassava, proving to be economically viable and may also be indicated as a cheap alternative for the production of palm oil facing family farmers. Cultivars of oil palm in the disturbed forest environment, showed higher than in the savanna environment productive performance.

This study explores the shifting roles of teacher unions in pre-and post-independence Namibia, against the backdrop of a changing political context. My aim was to understand the roles of teacher unions both before and after independence in Namibia, and to explain how they changed in the different political contexts. To do so, I examined the teacher union roles in three distinct phases, namely pre-independence, immediately post-independence, taking in the period from 1990 to 1999, and the last decade, from 2000 up until today. In approaching the research questions, I worked on the assumption that understanding and explaining the roles of teacher unions in pre- and post-independence Namibia could best be achieved by interacting with participants who were or had been involved in education and the teacher unions in Namibia. I argued that their experiences would be important in constructing knowledge on the unions, particularly regarding their roles before and after independence. I chose a narrative design for the study, because it allowed me to interact with the participants to gain deeper meanings from their individual perspectives. Narrative design was appropriate to this research, because it also allowed me to trace the way events in education mirrored those in the national political arena, and to explain why particular tendencies emerged. I used the information collected during the interviews and document analysis as the data for the study. Four themes emerged regarding the roles of teacher unions in the contexts of pre- and post-independence Namibia, around which I conceptualized the study. These were the shifting historic roles of these unions in Namibia, the institutional frameworks and modalities for union participation, the contextual factors relating to the roles of the unions, and the changed roles of the unions in contemporary Namibia. The findings of the study suggested, firstly, that teacher unions play different roles in different political contexts, and that these roles are shaped by contextual factors. Secondly, the research established that the unions in the post-independence contexts did not necessarily have a vision of a labour-driven process of radical strategic change, as postulated by the theory of strategic unionism. Instead, the findings suggest that teacher unions in contemporary Namibia are influenced and shaped by the broader political and social factors of a new hierarchical political culture, by political and economic middle-class aspirations, and by undefined party-government-teacher union relationships. I conclude the study by suggesting an expansion of the concept of strategic unionism to include the nuances of political and economic contexts and aspirations. / Thesis (PhD)--University of Pretoria, 2011. / Education Management and Policy Studies / unrestricted

Den pågående vaccineringen mot covid-19 har inneburit att många människor börjar se ljuset i tunneln på den mörka tid som coronapandemin orsakat. Det råder dock inte konsensus kring vaccinet som uteslutande positiv för folkhälsan då vissa istället väljer att betona riskerna som vaccinet kan medföra framför fördelarna med vaccination.Tidigare forskning visar att faktorer som tillit, risker och individuella medicinska överväganden, likväl som kulturella aspekter har en avgörande roll i riskuppfattning gällande vaccinering.Studiens teoretiska referensram utgår från Becks teori om risksamhället, Giddens begrepp tillit till expertsystem, samt Douglas kulturella riskteori och beskyllningskultur.Syftet med denna pilotstudie är att undersöka studenters riskuppfattning gällande vaccinet mot covid-19, samt ifall riskuppfattning påverkas av faktorer som förändrad tillit och solidaritetsgrad.Datainsamlingen utgörs av en kvantitativ metod i form av enkätundersökning, där studiens urval består av medlemmar i gruppen ”Dom kallar oss studenter” på Facebook. Data från undersökningen analyserades sedan genom univariat analys samt multivariata regressionsanalyser.Resultat från studien visar att studenter med försämrad tillit till myndigheter uppfattar risker med biverkningar från vaccinet i högre grad än studenter som har en likvärdig eller förbättrad tillit till myndigheter. Det visar även att studenter med hög solidarisk inställning ser mindre risker med biverkningar från vaccinet än de med låg solidarisk inställning.Nyckelord: Covid-19, Risk, Förändrad tillit, Tillit till expertsystem, Risksamhället, Solidaritet, Kulturell riskteori, Kris. / The ongoing vaccination against covid-19 has meant that many people begin to see the light in the tunnel of the dark time that the corona pandemic has caused. However, there is no consensus about the vaccine as exclusively positive for public health as some instead choose to emphasize the risks that the vaccine may entail over the benefits of vaccination.Previous research shows that factors such as trust, risks and individual medical considerations, as well as cultural aspects, play a crucial role in risk perception regarding vaccination.The theoretical frame of reference in this study is based on Beck’s theory of the risks society, Giddens’ trust in expert systems, and Douglas’ cultural risk theory and blameculture.The aim of this pilot study is to investigate students’ perception of risk regarding the vaccine against covid-19, and whether risk perception is affected by factors such as changes in trust and degree of solidarity.The data collection consists of a quantitative method in the form of a survey, where the study sample consists of members of the group ”Dom kallar oss studenter” on Facebook. Data from the survey were then analyzed by univariate analysis and multivariate regression analyzes.Results from the study show that students with impaired trust in authorities perceive risks of side effects from the vaccine to a greater degree than students who have an equivalent or improved trust in authorities. It also shows that students with a high degree of solidarity see less risks with side effects from the vaccine than those with a low solidarity attitude.

Occupational roles are constantly changing in today's society. Corporate Sustainability Reporting Directive (CSRD) is a new EU directive that sets requirements for companies sustainability reporting, which may change the occupational role of HR managers. The aim of the study is to investigate if, and in that case, what changes in the occupational role the implementation of CSRD has led to in terms of tasks and role expectations and whether it has resulted in a changed role identity . In order to study whether there has been a change in the occupational role of HR managers, qualitative interviews have been conducted. The theoretical framework is based on the concepts: tasks, role expectations and role identity. The study's results show that the occupational role of HR managers has changed in some respects. A few new aspects have been added to the existing role, but the occupational role has not changed into a completely new role. The results also show that the changed occupational role has not lead to a changed identity. / Yrkesroller förändras ständigt i dagens samhälle. Corporate Sustainability Reporting Directive (CSRD) är ett nytt EU-direktiv som ställer krav på företags hållbarhetsrapportering vilket kan förändra HR-chefernas yrkesroll. Syftet med studien är att undersöka om och i så fall vad implementeringen av CSRD har lett till för förändringar i HR-chefers yrkesroll gällande uppgifter och rollförväntningar och om det resulterat i en förändrad rollidentitet. För att studera om det har skett en förändring av HR-chefers yrkesroll har kvalitativa intervjuer genomförts. Den teoretiska referensramen baseras på begreppen: uppgifter, rollförväntningar och rollidentitet. Studiens resultat visar att HR-chefers yrkesroll har förändrats i vissa avseenden. Yrkesrollen har inte förändrats till en helt ny roll utan det har tillkommit vissa nya aspekter till den befintliga rollen. Resultatet visar även att förändringen av yrkesrollen inte lett till en förändrad identitet.

Understanding of the fate of oil in the environment is of utmost importance; however, accurate, predictive models are still in very early stages. To aid in the development of these models, photodegradation of selected polycyclic aromatic hydrocarbons (PAHs) in an n-alkane hydrocarbon matrix was followed for individual PAHs and mixtures of PAHs similar to that found in the Deepwater Horizon spill. Tetracene in tetradecane photodegraded quickest of all observed PAHs, with a loss of 99% after only one hour of irradiation. Binary mixtures of PAHs showed different degradation amounts, including changes in PAH kinetics. These results suggest that the formation of dimers or aggregates as well as photosensitization reaction is important in the degradation of PAHs in oil. Kinetics of PAH photodegradation and PAH sensitized photodegradation will be presented. This information will provide a better understanding of the fate of oil in environmental systems.

Att utnyttja befintliga byggnader som annars står tomma kan vara en del av lösningen på problemet gällande bostadsbrist i Sverige. Vid ändring av äldre bebyggelse som är det viktigt att beakta de kulturhistoriska och arkitektoniska värdena. Vid ombyggnation till bostäder och energieffektivisering är det viktigt att detta genomförs varsamt på äldre värdefull bebyggelse. Syftet med arbetet är att bidra till en ökad förståelse för hur en äldre byggnads arkitektoniska och kulturhistoriska värden kan bevaras trots att det sker en funktionsändring från en verksamhet till en annan. Målet för arbetet är att undersöka hur en gammal skolbyggnad kan ändras till bostäder samtidigt som kulturella och arkitektoniska värden bibehålls, energianvändningen minskar och funktionella bostäder skapas. Arbetet baseras på en fallstudiebyggnad som är en skolbyggnad från 1850 som ligger i Vanstad, Skåne.   En inledande litteraturgenomgång behandlar äldre bygg- och installationstekniska lösningar, kulturvärde och kvalitéer i bostäder. Vilka regelverk som skall följas vid ombyggnation och ändrad användning, utformningskrav enligt BBR och energieffektiviseringsåtgärder vid ombyggnation behandlas också. Även fyra exempel gällande energieffektiviseringar av äldre tegelbyggnader studeras. Fallstudiebyggnaden är inte K-märkt men pekas ut som värdefull och värd att bevara i handlingar tillhandahållna av Sjöbo kommun. Generellt så rekommenderas det att byggnader uppförda före 1900-talet skall bevaras i så autentiskt skick som möjligt.   Utifrån insamlad information genom inventering av arkivmaterial och inventering av fallstudiebyggnaden tas en beskrivning av fallstudiebyggnaden fram, som ligger till grund för utvecklingen av ett utformningsförslag för ändring av skolbyggnaden till bostadsändamål. Det efterfrågas mindre lägenheter från Sjöbo kommun vilket utformningsförslaget tagit hänsyn till. Utformningsförslaget resulterade i 7 stycken lägenheter där 6 av 7 har en boarea mellan 35 m2 och 55 m2. På grund av byggnadens ålder och äldre byggnadstekniker så når byggnaden inte upp till dagens energikrav. Förslaget till bostadsutformning inkluderar åtgärder som bedöms vara möjliga att genomföra för att sänka energianvändningen. Varje lägenhet granskas också för att kontrollera vilka kvalitéer som uppnås i bostäderna. De åtgärder som förespråkas är: tilläggsisolering av ytterväggar och yttertak, tätning av klimatskal, byte av ventilationssystem, uppvärmningssystem, installation av solceller samt förbättring av fönster och dörrar.   Resultatet visar hur det går att utforma funktionella bostäder i en äldre kulturhistoriskt värdefull byggnad. Att tillämpa energieffektiviseringsåtgärder för minskad energianvändning och förbättrat inomhusklimat påvisas också i resultatet. Gällande lönsamheten i genomförandet sett till ombyggnation, ändrad användning, energieffektivisering och lägenhetsutformning kan vidare studier ske mer ingående på den konkreta energibesparingen och LCC-kalkyler för vidare ekonomisk insikt. / To use existing buildings that would otherwise be empty could be a part of the solution regarding the housing shortage in Sweden. When changing older buildings, it is important to consider the cultural and architectural values. When changing usage to dwellings and improving energy efficiency it is important that it is carried out carefully on older valuable buildings. The purpose of the work is to contribute to an increased understanding of how the architectural and cultural-historical values of an older building can be preserved despite a change in use from one function to another. The goal of the work is to examine how a cultural-historical valuable building can be changed to functional dwellings in conjunction with reduced energy usage. The work is based on a case study of a school building from 1850 in Vanstad, Skåne.   An introducing review of theory is a bout older building and installation solution, cultural value and qualities in dwellings. Which acquis to follow during reconstruction and change of usage, design requirements according to BBR and actions to reduce energy usage. Four different studies regarding reduction in energy usage on older brick buildings are studied. The case study building is not K-marked but is pointed out as a valuable building that is worth preserving in documents from Sjöbo. It is recommended that buildings constructed before the 1900s should be kept as authentic as possible.   Based on information gathered through inventory of archive material and inventory of the case study building a description on the case study building is made which is the basis for a design proposal for changed usage from school building to housing. Sjöbo is requesting smaller apartments which the design proposal considers. The design proposal resulted in 7 apartments where 6 out of 7 has a living space between 35 m2 and 55 m2. Because of the buildings age and older building techniques the building does not reach todays energy requirement. The design proposal documents which actions that is possible to implement to reduce the energy usage. Every apartment is reviewed to control which qualities is achieved in the dwellings. The measures advocated is: additional insulation on walls and roof, sealing of the climate shell, change of ventilations system, heating system, installation of solar cells and improvement of window and doors.   The result shows how it is possible to design functional dwellings in an older cultural-historical valuable building. To apply energy efficiency measures to reduce the energy usage and improving the indoor climate is also demonstrated in the result. Regarding profitability considering reconstruction, changed usage, reduction in energy usage and design of dwellings more in-depth studies could be made regarding the actual energy savings and LCC calculations for further economic insight.

Made available in DSpace on 2016-04-26T20:20:11Z (GMT). No. of bitstreams: 1 Rusvel Beltrame Rocha.pdf: 1391394 bytes, checksum: 50f72834bbaa8ab9358ef210eb8e9271 (MD5) Previous issue date: 2011-06-06 / The Main Purpose of this study is to discuss the acquired rights on the Urban Laws. The Supremo Tribunal Federal rules that the rights on the urban law happens with the start of the works, dully licensed by the local public office. On the other hand, most cities in Brazil defines that this moment really happens when the owner submitt the License Permit to the City Offices. Based on the Constitutional Principles of Urban Planning, the intent of this paper is to demonstrate that the the proper moment for the acquisition of the rights is exactily when the license is granted by the local autorirty. Is is also sugested that all the process of annalises of construction permits should be suspended during the phases of alteration or revision of City Regulation Plans / A ideia central deste trabalho é discutir a questão do direito adquirido no âmbito do direito urbanístico. O Supremo Tribunal Federal (STF) entende que o direito adquirido no âmbito do direito urbanístico se dá com o início da obra regularmente licenciada pelo poder público local. No entanto, o ordenamento jurídico dos municípios brasileiros estabelece que esse momento se consolida quando o proprietário protocola seu pedido de licença perante a Administração Pública Municipal. A partir da interpretação do princípio constitucional do planejamento urbano pretendese demonstrar que o momento da constituição do direito adquirido se dá quando da concessão da licença urbanística. Defende-se, também, a necessidade de suspensão dos processos administrativos tendentes à concessão de licenças urbanísticas no curso do processo de alteração ou revisão de planos diretores

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時間數列分析過程，常常發現其走勢，隨著時間過程而演變，應用傳統的線性模式來配適，往往很難獲得合適預測值。因此近幾年來，非線性時間數列結構性改變的研究越來越受到重視，也一直是時間數列及計量經濟學學者所熱衷的研究主題之一。本文利用模糊理論的觀念，以模糊炳找出配適ARCH模式數列之轉折區間，分別以轉折區問起始點及結束點作為截取點，去配適ARCH(1)模式，稱之為截取式自迴歸條件變異數分析法(Trimmed ARCH(1) model)。針對台幣對美元銀行間每日收盤匯率，分別以單變量ARIMA、ARCH(1)、Trtmmed ARCH(1)來建構模式，並做比較分析。比較結果發現，以轉折區間結束點作為截取點之Trimmed ARCH(1)模式，其預測值最為準確，大為改善了原來ARCH(1)模式之預測水準。 / In time series analysis, we often find the trend of which changing with time. Using the traditional model fitting can't get a good prediction. Hence the research of structure change of non-linear time series is attentive in recent years, and non-linear time series analysis is a research topic which the scholars of time series and econometrics are intent on. This article tries to use the theory of fuzzy ,to recognize the structure change period by the fuzzy classification, let the first point and the last point of the structure change period be the cute points, to fit ARCH(1) mod ie which we called the Trimmed ARCH(1) model. We use the data of the exchange rate between N.T dol liars and U.S dollars to compare the ARIMAwith ARCH(1) and Trimmed ARCH(1), the forcasting performance shows that Trimmed ARCH(1) model takes a better prediction result.

<p>Uppsatsen, Kriskommunikation i ett förändrat medielandskap, är en fallstudie på webbplatsen www.krisinformation.se. Utgångspunkten för uppsatsen är det förändrade medielandskapet och vad det innebär för kommunikation i kris. Uppsatsen berör flera olika hörnstenar som är viktiga för framgångsrik kriskommunikation. Hörnstenarna rör bland annat vilken tillit och vilket förtroende användarna har för Krisinformation.se, dess innehåll samt Internet som medium i den förändring som skett i medielandskapet när det gäller kriskommunikation.</p><p>Fallstudien undersöker även om det är privatpersoner eller yrkesverksamma som besöker Krisinformation.se. Den undersöker även vad användarna anser är viktigast när de ska ta del av information i en krissituation gällande om informationen är snabb, kortfattad, relevant eller tydlig. Vi har i fallstudien också studerat vilket medium de använder i olika situationer samt hur de agerar på webbplatsen när det gäller att följa hyperlänkar till vidare information.</p><p>Teoretiska utgångspunkter är teorierna om kriskommunikation och teorin global village. Forskning inom andra områden berörs också, då de är relevanta för uppsatsen och dess syfte. Dessa områden är gatekeeping-teorins förändring, fördelar och nackdelar med Internet, vilka medievanor människor har haft i tidigare kriser, samt forskning om vilket medium människor föredrar i kris.</p><p>Resultatet som framkommit bekräftar tidigare forskning och indikerar på att Internet kan ses som en framgångsrik kanal vid kommunikation i kris. Respondenterna har ett högt förtroende för Krisinformation.se som avsändare och ett ännu högre förtroende för innehållet. De har även högt förtroende för Internet som medium när de ska ta del av information i kris. De prioriterar att informationen förmedlas snabbt, oavsett informationens form i det läget. Något anmärkningsvärt är att respondenterna föredrar att ta del av krisinformation via myndigheters webbsidor. De väljer dock först att hämta informationen på nyhetssidor på Internet, vilket ytterst få har störst förtroende för. Det paradoxala i detta, är att majoriteten av respondenterna föredrar att informationen ska vara sann. De agerar alltså inte som de säger att de vill göra.</p><p>Resultatet som avviker från tidigare forskning, är att det finns fler aktörer än traditionell media som fungerar som guider i det förändrade medielandskapet. Vilka dessa aktörer är och hur de agerar, är värt att undersöka vidare.</p><p><em> </em></p>