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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

Flavio Josefo e o paradigma de circularidade cultural entre as comunidades judaicas e a sociedade romana na Urbs do século I d.C / Flávius Josephus and the paradigm of cultural circularity between the jewish community and roman society in Urbs of the first century

Junio Cesar Rodrigues Lima 13 March 2013 (has links)
O paradigma de circularidade cultural entre a comunidade judaica e a sociedade romana foi construído pela historiografia através da análise do contato sociocultural e embates entre romanos e judeus que, ao longo da história, ocuparam o mesmo espaço em diversas regiões anexadas ao Império Romano. As relações de poder estabelecidas entre Roma e Jerusalém, após a ocupação da Judéia, apontam para uma hierarquização nas relações sociais, culturais e políticas entre romanos e judeus. O conceito de circularidade cultural de Carlo Ginzburg nos permite, a partir da trajetória de Flávio Josefo, identificar a dualidade no mundo social de Josefo, na qual, de um lado estavam as culturas dominantes (sociedade romana) e, do outro, as culturas subalternas (comunidades judaicas) que, apesar da marcação das diferenças, se influenciavam reciprocamente. / The paradigm of cultural circularity between the Jewish community and Roman society built by historiography through analysis of the cultural contact and clashes between Romans and Jews. They occupied same space in different regions of the Roman Empire. Power relations established between Rome and Jerusalem after the occupation of Judea indicate a hierarchy in social, cultural and political relations between Jews and Romans. The concept of cultural circularity of Carlo Ginzburg identifies a duality in the Josephus social world. The influence of dominant cultures (Roman society) and subordinate cultures (Jewish communities) was reciprocal.
22

Indicios de leitura, visões de mundo e construções de sentido / Reading clues, visions of the world and meaning constructions

Cunha, Rodrigo Bastos, 1972- 02 May 2009 (has links)
Orientador: Raquel Salek Fiad / Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Estudos da Linguagem / Made available in DSpace on 2018-08-12T15:38:25Z (GMT). No. of bitstreams: 1 Cunha_RodrigoBastos_D.pdf: 1343019 bytes, checksum: a586f3ca0ab947eb7514946e0d89fca1 (MD5) Previous issue date: 2009 / Resumo: Este estudo é norteado pela busca de indícios de leituras em produções de texto de estudantes oriundos da rede pública de ensino médio, nas quais as construções de sentido são reveladoras de suas visões de mundo. As produções aqui analisadas foram feitas a partir de propostas de redação de vestibulares da Unesp e da Unicamp e do Exame Nacional do Ensino Médio, com a leitura das coletâneas originais de textos curtos que acompanham essas propostas e com a leitura de reportagens que as substituem. A partir do olhar para o detalhe, segundo o paradigma indiciário proposto por Ginzburg, este trabalho tem como idéias centrais as noções de Bakhtin que permitem sinalizar o diálogo que os textos produzidos pelos estudantes estabelecem com suas leituras precedentes e a circularidade de sentidos em discursos que dialogam com essas leituras e com aqueles textos. A análise dos textos permite concluir que, no percurso entre a leitura e a escrita, uma teia de sentidos é construída a partir da mobilização de leituras precedentes desencadeada por uma atitude de resposta às propostas de redação e à leitura dos textos que as acompanham. De todas essas leituras, presentes e precedentes, se entretecem recortes selecionados pelos leitores a partir de sua leitura de mundo. / Abstract: This study is based on the investigation of reading clues in texts produced by public high school students, in which the meaning constructions reveal their vision of the world. The text productions analyzed here are results of writing proposals from Unesp and Unicamp entrance examinations and the National High School Examination, including the reading of the original short texts collection that follow these proposals and the reading of reports that substitute it. Drawing attention to the details, considering the evidentiary paradigm proposed by Ginzburg, this work has as central ideas the Bakhtin's notions that allow to signalize the dialog established between the texts produced by the students and their precedent readings and also the circularity of meanings in discourses which dialogue with these readings and those texts. The analysis of the texts shows that in the pathway between reading and writing, a web of meanings is constructed from the precedent readings, in a responsive attitude to the writing proposals and the reading of the texts that follow it. From all those readings, present and precedent, selected fragments are tissued by the readers, according with their reading of the world. / Doutorado / Lingua Materna / Doutor em Linguística Aplicada
23

Circular Economy in the Växjö Region : Case: Local Entrepreneurs and Organizations

Veksler, Alina, Dervieux, Benoit January 2020 (has links)
Purpose - The purpose of this study is to gain insights into the implementation of circular economy from the perspectives of local entrepreneurs and organizations within the Växjö region. Design/methods/approach - This paper follows the case study design with local entrepreneurs and organizations as the unit of analysis. The authors adopted both iterative and abductive thinking in order to alternate between analysis of theories and empirical material. Systematic literature review with themes was used as a specific purpose and research question was specified from the beginning. When collecting empirical material, guided and semi-structured interviews were used. For the data analysis, “initial coding” was utilized, which allowed the authors to differentiate themes and thus perform a thorough analysis. Findings - Växjö Kommun has a long-term goal of fostering sustainability and circularity within the Växjö region through numerous communication channels and continuous collaboration and cooperation with various groups of stakeholders. Their efforts have facilitated the emergence of initiatives and projects from small entrepreneurs. However, the relationship between Växjö Kommun and other stakeholders (local entrepreneurs and organizations) face difficulties due to a lack of communication and differences in perception of how the strategies should be implemented. Practical implications - Through collecting, analyzing and combining theoretical and empirical material, insights were gained into the implementation of circular economy. Based on these, recommendations to the local entrepreneurs and organizations were outlined, which can be utilized when rethinking their strategies related to sustainable and circular projects in the region of Växjö. Originality/value - The originality of this paper lies in the absence of previous research conducted on similar topics within this local context. The authors believe that their paper will be valuable to both local entrepreneurs and organizations who wish to better understand the implementation of circular economy. At the same time, the findings could be useful for other scholars who wish to continue this research.
24

Reflection Seismic Survey for Characterising Historical Tailings and Deep Targeting at the Blötberget Mine, Central Sweden / Reflektionsseismisk undersökning för karaktärisering av historiskt gruvavfall och djup inriktning vid Blötberget i mellersta Sverige

ALOFE, EMMANUEL January 2021 (has links)
Iron has been an essential element to human development and iron-oxide deposits are known to host minerals that are labelled as critical raw materials (CRMs), especially in the EU. Therefore, ensuring a sustainable supply of CRMs require access to both primary and secondary sources of their host deposits such as iron oxides. Blötberget is an old mining site in central Sweden rich in both primary and secondary iron-oxide resources (i.e. tailings) from centuries-long mining activities. Thus, this thesis focused on this site, to (1) improve the image of its iron-oxide mineralisation under the historical tailings area through the extraction and processing of 2D data from a wider and sparse 3D dataset, (2) characterise the tailings in terms of geometry delineation and geomechanical property estimation by generating P-wave velocity models of the tailings, and (3) improve the interpretation of existing results in the area through 3D visualisations and comparison. Results from this thesis work suggest possible depth and lateral extensions of the mineralisation for few hundreds of metres beyond what was known previously in the area. It is believed that about 10 Mt of primary iron-oxide resources could arguably be present under the tailing area while the tailings contain an estimated 1 Mt of secondary iron-oxide resources. Also, this thesis work findings indicate that the historical tailings are approximately 10 -12 m thick, 650 m long, and 300 m wide, and has a Vp/Vs ratio between approximately 3-4, indicating a poor geomechanical strength. Additionally, the depth to bedrock in this area was estimated to be 50 m at its deepest parts, with a morphology indicative of complex geological occurrence. Therefore, it is concluded, based on these results, that Blötberget has a good potential to ensure the supply of both iron ore and its constituent CRMs. / Järn har varit ett viktigt grundämne för mänsklig utveckling och järnoxidavlagringar är kända för att innehålla mineral som är märkta som kritiska råmaterial (KRM), särskilt inom EU. Därför kräver säkerställandet av en hållbar tillgång till KRM tillgång till både primära och sekundära källor till deras värdfyndigheter, till exempel järnoxid. Blötberget är en gammal gruvplats i mellersta Sverige som är rik på både primära och sekundära järnoxidresurser (dvs. gruvavfall) från en lång gruvverksamhet. Således fokuserade denna avhandling att (1) förbättra karaktäriseringen av järnoxidmineralisering i det historiska gruvområdet genom utvinning och bearbetning av 2D-data från ett glest 3D-dataset, (2) karakterisering av gruvavfall för avgränsning av geometri och uppskattning av geomekaniska egenskaper genom att generera P-vågshastighetsmodeller för gruvavfallsområdet, och (3) förbättra tolkningen av befintliga resultat i området genom 3D-visualiseringar. Resultat från denna avhandling tyder på möjliga djup och laterala förlängningar av mineraliseringen om några hundratals meter bortom vad som tidigare var känt i området. Det antas att cirka 10 Mt primära järnoxidresurser finnas under avfallssområdet medan gruvavfallet innehåller uppskattningsvis 1 Mt sekundära järnoxidresurser. Dessutom visar denna avhandling att det historiska gruvavfallet är cirka 10-12 m tjockt, 650 m långt och 300 m brett och har ett Vp/Vs -förhållande mellan cirka 3-4, vilket indikerar en låg geomekanisk hållfasthet. Dessutom beräknades djupet till berggrunden i detta område vara 50 m vid dess djupaste delar, med en morfologi som indikerar komplex geologisk förekomst. Därför dras slutsatsen, baserat på dessa resultat, att Blötberget har en god potential att säkerställa leveransen av både järnmalm och dess ingående KRM
25

Simply Wood : Design of All-Wood Furniture Joints

Braun, Moritz January 2021 (has links)
The need for sustainability, increasingly requires developing products according to a cradle to cradle approach. For furniture, wood, being potentially renewable, is a suitable material in this regard. However, most wooden furniture today utilizes steels and synthetic polymers in the joints, which can partially be recycled, but are far from being circular materials. All-wood joints have been used in traditional furniture and construction, but they are not adapted to modern manufacturing techniques and do not fulfill the need for easy assembly.  The aim of this thesis is to explore existing solutions for all-wood joints, as well as relevant manufacturing techniques to create an approach for the development of new joints by practitioners. The research questions are: What are the principles used in existing technical solutions and how can they be used to develop new all-wood furniture joints? What are the most important manufacturing techniques for wood today and how can they be considered in the early-stage development? The general approach in this thesis is to abstract the researched existing technical solutions and manufacturing techniques, ideate on this abstract level, and then detail the concepts on a more concrete level.  As results, fourteen different principles and six different patterns of transformation were extracted from existing solutions and documented in an accessible form. Similarly, seven manufacturing techniques were collected and documented. These were then used in an ideation workshop with practitioners from IKEA, which resulted in six abstract concepts. One of the concepts was further developed into a pre-design and tested with a simulations according to strength and stability requirements from applicable standards.  The testing of the pre-design proved its practicality and a team at IKEA is continuing the development of the concept and planning to manufacture a prototype. This is a good indicator for the usefulness of the approach. Even though it worked well, further exploration of the "toolbox" is recommended, as well as the use of different ideation methods. The full environmental benefits of furniture with all-wood joints are not clear, because only resource depletion was considered and the potential effect is small compared to other industries. Despite this, the thesis shows the potential in circular furniture and encourages IKEA and other furniture companies to delve into the topic of circular furniture more deeply.
26

Improving Sinkhole Mapping Using LiDAR Data and Locating Sinkhole Hotspots in Johnson City, TN

Fasesin, Kingsley 01 December 2018 (has links)
Predicting infrastructure damage and economic impact of sinkholes requires high accuracy mapping distribution and development. The study mapped sinkholes and sinkhole hotpsots in Johnson City, TN using LiDAR-derived Digital Elevation Model (DEM) and a database of known sinkholes which were matched to LiDAR-derived depressions. For all matched depressions (n = 404), three metrics were calculated: circularity index, ratio of length to width of the Minimum Bounding Rectangle (MBR) and percent coverage of the MBR by the depression, and 3,634 new sinkholes were identified. Newly developed hotspots were identified in north Johnson City and other areas in the south near the Johnson City Medical Center. The methodology developed can be applied to identify hotspots in other small metropolitan cities and the hotspot map produced can be employed in hazard mitigation planning, resource allocation, and made available publicly to property owners and insurance companies.
27

Managing Complexities of Repair Service Offerings : A Study of the Outdoor Textile Industry

Case, Sarah, Krönert, Mirjam January 2022 (has links)
The textile industry, in its current form, is characterized by short use phases and large amounts of textile waste. One of the many approaches needed to address these issues is repair. By extending the life cycle of textiles, their environmental impact has potential to be reduced and a contribution toward a circular economy can be made. One branch of the textile industry pioneering repair services are brands and retailers selling outdoor products. The purpose of this research is to investigate repair services for outdoor brands and retailers in the textiles industry to gain insight from an organizational management perspective by focusing on how outdoor companies manage complexities to offer repair services. This paper employs a qualitative approach. Empirical data was collected through semi-structured interviews, as well as company websites and reports. To analyze the material, a configurational lens was taken to view and analyze repair service offerings from a holistic perspective. Three repair service archetypes were identified. By applying a strategy-structure-environment framework, 12 factors influencing the organization of repair service offerings by outdoor textile companies were derived. Further, four complexities based on configurations of those factors were identified and discussed in relation to how outdoor brands manage the observed complexities. The practical implication of this research includes a detailed delivery of repair service offerings in the outdoor textile industry, which adds depth to the knowledge base for managers, repair technicians, and sustainability teams making decisions about adopting or continuing to develop their repair services. Further, an increase in repair services contributes to greater circularity. Beyond the scope of this research is a quantified evaluation of factors and their interrelation which would allow for recommendations of best practices. This research is foundational for such further research.
28

To Create the Perfect Self-Repair Experience for an Induction Hob / Att skapa den perfekta reparationsupplevelsen av en induktionshäll för en icke erfaren användare

Díaz Salvadores, Rodrigo, Franzén, Josefin January 2022 (has links)
This project was performed in collaboration with Electrolux and takes off in the transition towards a circular economy where products are considered to have multiple life cycles and need to be designed to be able to cycle longer through maintenance and repair. Electronics are rarely designed to fit into circularity thus an induction hob was chosen to show this principle. The research question for this project was therefore how an induction hob should be designed and what other tools are needed to enable a non-experienced user to repair it to provide the perfect repair experience. The project began with a literature study which investigated the concept of circular economy, also how to design for circularity and sustainability. It moved on to investigating why people get rid of products and why people don’t get rid of products. It was found that there are many barriers at the individual’s level and at a structural level, as that people feel that they should replace their products after some time, as well as economical aspects. The main reasons why people keep their products are the emotional attachment to product or that it cost less than to repair than replace the product. A user study was performed to investigate the repair experience for an induction hob today. It was done through letting people disassemble an induction hob while they answered questions about the experience. The insights from the literature and the user studies were narrowed down to the following problems to be solved: Easy diagnosis, easy opening, identification, and replacement of the broken module. Concepts were prototyped and more rounds of user studies were performed with these. The final concept lets the hob stay in the counter while the repair is performed. It contains a tray which resembles a “bento box” in which the internal modules are placed that also functions as a hiding area for the cables in the hob. A new opening mechanism has been designed and the internal modules are now more approachable. The final result only considers barriers for repair at the individual’s level, lowering them to make the repair process easier. The diagnosis has become simpler through the NFC tag and the provided instructions and identification of modules was easier because of the icons. The design follows the Electrolux brand guidelines and gives the user the feeling that they can touch and replace the modules. Also, an electrical safety system has been added. The final concept gives a non-experienced user the tools and confidence to perform the repair themselves. When the user has performed the repair themselves, they are more prone to keep the hob for longer. / Det här projektet gjordes tillsammans med Electrolux och tar avstamp i förändring mot cirkulär ekonomi där produkter kan ha flera livscykler och därför behöver vara designade för att kunna underhållas och repareras. Elektronikprodukter är sällan designade för att passa in i cirkulär ekonomi och därför valdes en induktionshäll för att påvisa principen. Frågeställningen för projektet var hur ska en induktionshäll designas, samt vilka andra verktyg behövs, för att en icke erfaren användare ska kunna få den perfekta reparationsupplevelsen. Projektet inleddes med litteraturstudier som undersökte cirkulär ekonomi och hur produkter kan designas för att sträva mot hållbarhet och cirkularitet. Vidare undersöktes varför människor gör sig av med produkter samt varför människor behåller sina produkter. Det visade sig att det finns många barriärer både på individnivå och på strukturell nivå, såsom att människor efter en tid känner att de bör byta ut sina produkter, såväl som ekonomiska aspekter. Människor behåller sina produkter för att de har känslomässiga band till dem eller för att det kostar mindre att reparera än att köpa nytt. Flera omgångar av användarstudier utfördes, bland annat fick personer ta isär en induktionshäll för att kunna analysera upplevelsen av reparationen idag. Från användarstudierna och litteraturstudien upptäcktes följande problem som behövde lösas: diagnosticering, öppna upp hällen, identifiera och byta ut den trasiga modulen. Koncepten utvärderades kontinuerligt genom användartester med modeller. Det slutgiltiga konceptet låter induktionshällen vara kvar i köksbänken när reparationen utförs. En ny öppningsmekanism konstruerades och de interna modulerna designades om för att kännas mer tillgängliga och vänliga för användaren. I induktionshällen finns en inre ram som efterliknar en så kallad “bento box” där de interna modulerna placeras och alla kablar göms. Slutresultatet tar endast hänsyn till barriärer för reparation på individnivå och har sänkt dessa i de olika faserna i reparationsresan för att förenkla denna. Diagnostiseringen har blivit enklare genom NFC-taggen och de medföljande instruktionerna. Identifieringen av moduler har blivit enklare med hjälp av ikonerna. Designen följer Electrolux varumärkesriktlinjer och ger användaren känslan av att de kan röra och byta ut modulerna. Dessutom har ett elsäkerhetssystem lagts till. Det slutliga konceptet ger en icke-erfaren användare verktygen och självförtroendet att utföra reparationen själv. Efter den upplevelsen är de mer benägna att behålla hällen längre.
29

Increased Sustainability Through Circular Economy : A case study on how to increase the circularity performance of a global manufacturing enterprise

Larsson, Emma, Mattus, Sofia January 2023 (has links)
Businesses are gradually extending their attention towards including sustainability activities in their business practices. Current linear approaches are outdated and new long-term sustainable options are being investigated. Circular economy (CE) has gained momentum during the past few years after the publication of a report by the Ellen MacArthur Foundation in 2013. Since then, scientific articles have presented different aspects of the concept, proposing various frameworks on how to address circular product design or circular business models. However, a framework visualizing CE from a holistic perspective and how it should be implemented is lacking. Therefore, this master’s thesis aims at developing a practically applicable framework for CE on a strategic level, as well as a tool for implementing circularity practices in an organization. Since large manufacturing industries seem to find it especially difficult to change from linear to circularity practices, the focus of this study will be on large manufacturing companies. Previous literature within the area was analyzed to interpret existing findings and to enable a creation of a new holistic CE framework. A case study was carried out to enable analyzing theoretical findings with a practical case. The conducted studies resulted in the development of a holistic CE framework, presenting areas necessary to address to accomplish a successful CE implementation. An implementation model was also developed, based on the stage-gate process, as well as the British Standard for implementing CE. The case study results show a status quo based on categories within the developed CE framework. The proposed implementation tool along with three defined focus areas to guide the case company’s continued transition was defined as 1) to introduce product-service systems to close resource loops and increase control of company resources, 2) to improve organizational culture to increase knowledge and thereby also the company’s market position, and 3) to establish product-focused partnerships to strengthen value chain relations.
30

A MULTIVARIATE STATISTICAL ANALYSIS ON THE SAMPLING UNCERTAINTIES OF GEOMETRIC AND DIMENSIONAL ERRORS FOR CIRCULAR FEATURES

ACHARYA, SRIKANTH B. 13 July 2005 (has links)
No description available.

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