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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.
441

Searching for SETI: The Social Construction of Aliens and the Quest for a Technological Mythos

Bozeman, John Marvin 21 April 2015 (has links)
This dissertation uses Actor Network Theory (ANT) and Stark and Bainbridge's rational choice theory of religion to analyze an established but controversial branch of science and technology, the Search for Extraterrestrial Intelligence (SETI). Of particular interest are the cultural, and sometimes religious, assumptions that its creators have built into it. The purpose of this analysis is not to discredit SETI, but instead to show how SETI, along with other avant-garde scientific projects, is founded, motivated, and propelled by many of the same types of values and visions for the future that motivate the founders of religious groups. I further argue that the utopian zeal found in SETI and similar movements is not aberrant, but instead common, and perhaps necessary, in many early-stage projects, whether technical or spiritual, which lack a clear near-term commercial or social benefit. / Ph. D.
442

Tensions in Transition : Identifying Barriers to Cross-Sectoral Collaboration Towards Circular Economy in Plastics

Lorenc, Natalia, Schadt, Malin January 2024 (has links)
This study explores the barriers to cross-sector collaboration among NGOs, for-profit organizations, PBCs, social enterprise and public entities within the plastic industry, aiming to identify the challenges hindering the transition towards a holistic circular economy. The research investigates the complex dynamics and interconnected factors that impede collaborative efforts in addressing the global plastic pollution crisis. Employing a qualitative approach, the study conducted semi-structured interviews with actors representing various sectors and roles within the plastic value chain. The research design involved a thematic analysis of the interview data, guided by the theoretical frameworks of Social Network Theory, Systems Thinking, and Innovation. This approach allowed for a comprehensive examination of the barriers to cross-sector collaboration, considering the interplay of power dynamics, economic priorities, and the lack of feasible, scalable solutions. The findings reveal three major barriers: power imbalances and disconnect among actors within the plastic industry network, the prioritization of profit over sustainability in the current economic system, and the absence of realistic, feasible solutions that can be implemented on a large scale across the entire value chain. The study highlights the necessity of fostering an inclusive environment, shifting mindsets, and developing innovative, scalable solutions to overcome these barriers. The findings contribute to a deeper understanding of the complex challenges in achieving cross-sector collaboration and provide valuable insights for practitioners and policymakers working towards a sustainable future in the plastic industry.
443

Exploring standardization and integration in the implementation of industry inter-organizational information systems: a case study in the seaport of Barcelona

Rodon Mòdol, Joan 02 October 2007 (has links)
Aquesta tesis presenta un estudi interpretativista sobre els processos d'estandardització i integració relacionats amb la implementació d'un sistema d'informació inter-organitzatiu (SIIO) sectorial en el Port de Barcelona. Aquest treball adopta una perspectiva de conjunt sobre els SIIO. Per un costat, des d'aquesta perspectiva un SIIO està en constant en moviment durant la implementació i el seu posterior ús. Per tant, la implementació del SIIO ve condicionada per configuracions prèvies, ja que els sistemes existents influencien en les opcions i trajectòries que pot prendre la implementació. Per altre costat, de la mateixa manera la implementació ve determinada tant per aspectes materials i/o tecnològics com per aspectes socials. És a dir, la implementació es pot veure com un procés de canvi socio-tecnològic que evoluciona al llarg de la implementació del SIIO sectorial.L'objectiu d'aquesta tesis és investigar la naturalesa socio-tecnològica del procés de implementació d'un SIIO i identificar aspectes teòrics i pràctics que puguin explicar les dinàmiques que es produeixin al llarg de la implementació. En base a un estudi de cas intepretativista i en profunditat, el qual combina l'ús de grounded theory i actor-network theory, realitzo un anàlisi del procés d'implementació, i formalitzo una sèrie de contribucions teòriques i pràctiques. El primer gran tema d'estudi d'aquest treball ha estat l'estandardització que ha tingut lloc abans i durant la implementació del SIIO sectorial. El segon tema ha estat la integració dels sistemes de informació prèviament existents amb el SIIO sectorial.Les contribucions d'aquest treball tenen implicacions per la recerca. En primer lloc, aquest treball amplia el limitat, tot i que creixent, nombre de investigacions que s'han centrat en la naturalesa processual i socio-tecnològica dels SIIO. Igualment aquest treball complementa la literatura existent en SIIO, que ha proposat models de factors, ja que explica com i perquè alguns d'aquests factors són importants. En segon lloc, aquest treball contribueix a la recerca que ha fet estudis longitudinals en l'àrea de sistemes d'informació ja que proporciona una interpretació contextual i en profunditat sobre els processos d'adaptació i canvi que tenen lloc durant la implementació d'un SIIO. Finalment, aquesta tesis contribueix a la literatura sobre estandardització de SIIO mitjançant l'establiment de lligams entre els estudis que proposen models de procés i els que es centren en l'anàlisi dels grups d'interès que participen en l'estandardització.Per altre costat, aquesta tesis té legitimitat pragmàtica ja que pot servir d'ajuda per millorar la pràctica. En primer lloc, aquest treball confirma el dinamisme dels interessos dels actors que participen en els processos d'estandardització, i posa de relleu que aquests actors tenen un ampli ventall d'interessos que varia en funció de la naturalesa dels propis actors i que condiciona la seva actitud al llarg del procés. És, per tant, molt important realitzar una constant identificació dels interessos dels actors. En segon lloc, aquesta tesis mostra que la gestió de SIIO ha de posar èmfasi i dedicar recursos no solament al disseny, a preveure escenaris futurs, i a desenvolupar estratègies i accions per fer front a aquestes previsions. La gestió també ha de prestar atenció i comprendre els esdeveniments no previstos i els canvis emergents que succeeixen durant l'ús del SIIO. Finalment, la implementació de SIIO requereix que els directius donin resposta per tal de reforçar o atenuar aquests canvis emergents. És a dir, la gestió de SIIO no es pot concebre únicament com una intervenció que es pot predefinir i planificar, sinó també com una forma de reacció i resposta al context i el comportament dels altres. Aquesta tesis també suggereix una sèrie de maniobres que poden ésser d'ajut als directius i professionals involucrats en projectes d'implementació de SIIO. / Esta tesis presenta un estudio interpretativista sobre los procesos de estandarización e integración relacionados con la implementación de un sistema de información inter-organizativo (SIIO) sectorial en el Puerto de Barcelona. Este trabajo adopta una perspectiva de conjunto sobre los SIIO. Por un lado, desde esta perspectiva un SIIO está en constante movimiento durante su implementación y posterior uso. Por lo tanto, la implementación del SIIO viene condicionada por configuraciones previas, ya que los sistemas existentes influyen en las opciones y trayectorias que puede tomar la implementación. Por otro lado, igualmente la implementación viene determinada tanto por aspectos materiales y/o tecnológicos como por aspectos sociales. Es decir, la implementación puede verse como un proceso de cambio socio-tecnológico que evoluciona a lo largo de la implementación de SIIO sectorial.El objetivo de esta tesis es investigar la naturaleza socio-tecnológica del proceso de implementación de un SIIO e identificar aspectos teóricos y prácticos que puedan explicar las dinámicas que se producen durante la implementación. En base a un estudio de caso en profundidad e interpretativista, el cual combina el uso de grounded theory y actor-network theory, realizo un análisis del proceso de implementación, y formalizo una serie de contribuciones teóricas y prácticas. El primer gran tema de estudio de este trabajo ha sido la estandarización que ha tenido lugar antes y durante la implementación del SIIO sectorial. El segundo tema ha sido la integración de los sistemas de información que ya existían previamente con el SIIO sectorial.Las contribuciones de este trabajo tienen implicaciones para la investigación. En primer lugar, este trabajo amplia el limitado, aunque creciente, número de investigaciones que se han centrado en la naturaleza procesual i socio-tecnológica de los SIIO. Igualmente este trabajo complementa la literatura previa en SIIO, la cual ha propuesto modelos de factores, ya que explica cómo y por qué algunos de estos factores son relevantes. En segundo lugar, este trabajo contribuye a la investigación que ha realizado estudios longitudinales en el área de los sistemas de información ya que proporciona una interpretación contextual y en profundidad sobre los procesos de adaptación y cambio que tienen lugar durante la implementación de un SIIO. Finalmente, esta tesis contribuye a la literatura sobre estandarización ya que establece vínculos entre los estudios que han propuesto modelos de proceso y los que se centran en el análisis de los grupos de interés que participan en la estandarización.Por otro lado, esta tesis tiene legitimidad pragmática ya que puede servir de ayuda para mejorar la práctica. En primer lugar, este trabajo confirma el dinamismo de los intereses de los actores que participan en procesos de estandarización, y pone de relieve que los diferentes actores tienen una amplia gama de intereses que varía en función de la naturaleza de los propios actores y que condiciona su actitud a lo largo del proceso. Es, por lo tanto, muy importante realizar una constante identificación de los intereses de los actores durante la implementación. En segundo lugar, esta tesis muestra que los directivos encargados de la implementación de SIIO han de poner énfasis y dedicar recursos no sólo a diseñar, prever escenarios de futuro, y desarrollar estrategias y acciones para cumplir con estas previsiones. La gestión también ha de prestar atención y comprender los acontecimientos no previstos y los cambios emergentes que se sucedan durante el uso del SIIO. Finalmente, la implementación de SIIO requiere que los directivos den respuesta con el fin de reforzar o atenuar estos cambios emergentes. Es decir, la gestión de SIIO no se puede concebir únicamente como una intervención que puede ser predefinida y planificada, sino también como una forma de reacción y respuesta al contexto y al comportamiento de otros. Esta tesis también sugiere una serie de maniobras que pueden ser de ayuda para los directivos y profesionales involucrados en proyectos de implementación de SIIO. / This dissertation presents an interpretive study of standardization and integration processes related to the implementation of an industry inter-organizational information system (IOIS) in the Seaport of Barcelona. This thesis adopts an ensemble view of the IOIS. First, from this perspective an IOIS is in constant flux as it is implemented and used in practice. Thus implementation becomes path dependent in the sense that existing systems influence the implementation choices and paths. Second, the implementation is being partly materially determined and partly socially constructed. That is, implementation may be viewed as socio-technical change processes that evolved around the implementation of the industry IOIS.The objective of this thesis is to inquire into the socio-technical nature of IOIS implementation process and identify theoretical and practical issues that can provide a relevant explanation of the implementation dynamics. Based on an in-depth interpretive case study, which is combined with actor-network theory and grounded theory, I conduct an analysis of the implementation process and formalize a set of theoretical and practical implications. The first main theme of this work has been the standardization effort that has taken place before and during the implementation of the industry IOIS. The second main theme is related with the integration of the adopters' pre-existing systems with the industry IOIS.The contributions that arise from this research have implications for research. Firstly, it adds to the limited but growing group of researchers that have focused on the processual and socio-technical nature of IOISs, as well as adds to the factor-based IOIS literature by detailing how and why some of these factors become important. Secondly, it contributes to longitudinal IS research by providing a deeper contextual understanding of the processes of adaptation and change that underlie IOIS implementation. Finally, it contributes to IOIS standardization literature by establishing links between the process and stakeholder models. On the other hand, this thesis has pragmatic legitimacy as it may serve as a helpful guide from which to improve practice. Firstly, this work confirms the dynamism of the stakes during the standardization process and highlights that the stakeholders that participate in the standardization have a range of stakes that vary among their nature and drive their attitude towards the process. Thus a continuous identification of participants' stakes appears to be very important. Secondly, this thesis shows that IOIS management has to place emphasis and devote resources not only to design, predict future conditions, and develop strategies and actions to meet those predictions, but also to pay attention and understand the unexpected events and emergent changes that arise during the use of the IOIS. Finally, IOIS implementation requires management to respond in order to reinforce or attenuate the emergent changes. That is, the IOIS management cannot only be conceived as predefined planned intervention, but also as a form of reaction and response to situational demands and others' behavior. In addition, this thesis provides a set of maneuvers that may guide managers and practitioners involved in the implementation of IOISs.
444

Den auratiska artefakten : Begränsningar och möjligheter i den digitala reproduktionen av kulturarv / The auratic artefact : Limitations and possibilities in the digitisation of cultural heritage

Cöllen, Sebastian January 2020 (has links)
The digital copy is rapidly becoming the dominant form in which researchers encounter cultural heritage. In this situation, the relation between the original and the digital reproduction has become a crucial, yet too little discussed problem. This thesis investigates this relation through two questions: (1) Which is the ontological status of the reproduction in relation to the original, and (2) How is the original mediated to its digital format? Question (1) is answered in dialogue with previous research: The reproduction is a new artefact, but with a relation (of similiarity) to the original. It is the understanding of this relation that the remaining part of the thesis tries to deepen and around which the second question revolves. This more empirical question (2)is examined through a comparative analysis of a physical original—the 17th century album amicorum of Gottfried Schröer—and its digitisation in the platform Alvin.The informative dimensions “context”, “materiality”, “textbased information”, and the category “aura” are investigated in the original and in the digital reproduction. For this purpose, Walter Benjamin’s concept “aura” is critically discussed and redefined as an analytical concept, and the research question is rephrased in terms of (a) which qualities are transfered, (b) not transfered, and (c) if/how they are transformed during the transfer to the digital format. It is also asked which consequences this might have for the artefact as a source of information. The analysis is positioned in a materiality discourse, adopting perspectives from, i.a., Actor-Network Theory and Material Philology. In this context, a widened concept of materiality is also developed, allowing the inclusion of the “virtual”. The thesis identifies aspects in which the reproduction differs from the original, depending, among other things, on its own materiality. This strengthens the call for users’ information competency when interacting with digital reproductions. This is a two years masters's thesis in library and information science.
445

日常生活中的科技實踐:以台北市YouBike系統為例 / Practice of Technology in Everyday Life: the YouBike System in Taipei

呂采穎, Lu, Tsai Ying Unknown Date (has links)
市區型公共自行車系統(YouBike)在台北市的發展如何可能?本研究採用行動者網絡理論(Actor-Network Theory)的分析取徑,透過追隨網絡裡人與非人行動者的實作軌跡,攤開YouBike自民國98年至今將近7年的網絡鋪陳,並重新檢視YouBike網絡發生轉變的三個關鍵時刻:技術移轉、重新組裝與創造市場。首先,地方政府作為早期關鍵行動者,藉由一連串的轉譯(translate)工作將全球性的問題化作台北市的問題,從而位移(displace)市場、政府與業界的力量,讓YouBike成為問題的唯一解方。而後信義區試營運時期,捷安特重新配置他方(台北市早期河濱與他國)的公共自行車技術要件,展現出技術自由連結(free association)的特性。最後本文主張,民國101年擴大營運後YouBike所經歷的劇烈轉折,乃因其以專業/業餘市場區分,取代了自行車市場既有的通勤/休閒定位,甚至影響到一般販賣低階車款的自行車零售商。從移轉他方知識,到成為全球公共自行車系統典範之一,YouBike案例亦讓我們看見台灣以代工起家的技術能力創新之可能。 / How is it possible to set up an urban public system such as YouBike in Taipei? According to actor-network theory, I expose the extending passage of YouBike network since 2009, exploring the trajectories of human and non-human actors involved in the process. I highlight three significant moments of the YouBike development: technology transferring, elements reassembling, and market creating. First, by way of translating the global concern to a local debate and mobilizing triple forces of market, government, and industries, as an important translator, Taipei city government advocated the YouBike as the only solution. Second, the Giant Bicycle applied the experience of public bicycle system learning from the abroad and the operation of riverside bike rental system in Taipei to the trial run of YouBike in Xinyi district. It shows a “free association” of technology. Finally, this study argues a dramatic transition of YouBike happened when the system expanded after 2012. YouBike network creates a new market based on professional and amateur bikers that change a traditional idea assuming the YouBiker’s motivation are only for commuting and recreation. Furthermore, this change even decreases sales of low-end bikes. In the making of YouBike, we see how Giant Bicycle is able to transfer abroad knowledge and becomes a paradigm in the global public bicycle business. It has been forecasted the potential of technological innovation in Taiwan (a country starts from OEM).
446

Analysing technology & innovation in complex networks : processes, dynamics, and development of multi-level interorganisational networks

Mass, Lena M. January 2014 (has links)
There is still very little known about network dynamics (Bell et al., 2006), especially when focusing on interorganisational networks (Provan et al., 2007). There is also limited empirical evidence on leadership within these complex network contexts (Davenport, 2005; Osborn et al., 2002). This thesis addresses these limitations by developing a theoretical framework for process leadership in the complex, often unpredictable and turbulent context of the interorganisational networked ecosystem. Understanding the complexity of networks and leadership is crucial to advancing network research, which this study aims to accomplish. Although previous studies indicate leader characteristics and behaviours (Huxham & Vangen, 2000), less evidence on the processes and dynamics of leadership within networks exists. Few studies have longitudinally examined the multiple boundaries and multi-level interactions within a complex interorganisational network, as the unit of analysis, as this thesis achieves. Moreover, little research has been conducted to understand network leadership processes, which represents a major gap in the network theory and complexity leadership literatures. In order to address these gaps as well as the gap between the two literatures, this thesis presents a comprehensive, longitudinal case investigation of network process leadership (NPL) within an interorganisational network embedded in the British National Health Service (NHS). By analysing processual dynamics, this thesis’s contribution is the foundation of a preliminary NPL framework. Based on analysing a public sector healthcare network over time, the findings emphasise four dominant thematic constructs surrounding NPL that emerged as highly significant: leveraging strategic system stressors and turbulence; adopting focal and non-focal roles; maximising social proximity; and the complementary, reciprocal formal and informal coproduction of leadership. These constructs provide the empirical and analytical grounds to help explain the critical leadership processes that drive a complex, interorganisational public sector network. Significantly, social capital dimensions underlie these interrelated higher order themes; thereby affecting wider inter-organisational network processes. As a primary contribution of this thesis, I argue that social capital is the critical concept linking network and complexity leadership theories, in order to provide a better understanding of NPL. The findings suggest network leadership calls for NPL and its relational, collective, facilitative approach involving social capital among multiple participants in a complex interorganisational network context. This is highly differentiated from studying unidirectional effects of a hierarchical, central leader within a single organisation. Theoretically, I argue the importance of social capital in the complex nature of leadership processes within interorganisational networked contexts. The research contributes to an understanding of how networks and social capital can be adapted or created by formal and informal leaders within networks to reflect changing processes to shape practices and network-wide development over time. Finally, I offer several operational mechanisms policymakers and network leaders could pragmatically employ to manage, lead, and facilitate interorganisational network processes. Overall, the significance of this study involves: filling gaps in the literature, offering a longitudinal case study on an interorganisational network over time, providing a foundation for theoretical development on leading in networks, illuminating insights into professional leadership within networks, and identifying policy and practical implications for leaders and managers.
447

Rethinking relations and regimes of power in online social networking sites : tales of control, strife, and negotiations in Facebook and YouTube

Vranaki, Asma A. I. January 2014 (has links)
This thesis investigates the potentially complex power effects generated in Online Social Networking Sites (‘OSNS’), such as YouTube and Facebook, when legal values, such as copyright and personal data, are protected and/or violated. In order to develop this analysis, in Chapter Two, I critically analyse key academic writings on internet regulation and argue that I need to move away from the dominant ‘regulatory’ lens to my Actor-Network Theory-Foucauldian Power Lens (‘ANT-Foucauldian Power Lens’) in order to be able to capture the potentially complex web of power effects generated in YouTube and Facebook when copyright and personal data are protected and/or violated. In Chapter Three, I develop my ANT-Foucauldian Power Lens and explore how key ANT ideas such as translation can be used in conjunction with Foucauldian ideas such as governmentality. I utilise my ANT-Foucauldian Power Lens in Chapters Four to Seven to analyse how YouTube and Facebook are constructed as heterogeneous, contingent and precarious ‘actor-networks’ and I map in detail the complex power effects generated from specific local connections. I argue five key points. Firstly, I suggest that complex, multiple, and contingent power effects are generated when key social, legal, and technological actants are locally, contingently, and precariously ‘fitted together’ in YouTube and Facebook when copyright and personal data are protected and/or violated. Secondly, I argue that ‘materialities’ play key roles in maintaining the power effects generated by specific local connections. Thirdly, I argue that there are close links between power and ‘spatialities’ through my analysis of the Privacy Settings and Tagging in Facebook. Fourthly, I argue that my relational understandings of YouTube and Facebook generate a more comprehensive view of the power effects of specific legal elements such as how specific territorial laws in YouTube gain their authority by virtue of their durable and heterogeneous connections. Finally, I argue that we can extrapolate from my empirical findings to build a small-scale theory about the power effects generated in OSNS when legal values are protected and/or violated. Here I also consider the contributions made by my research to three distinct fields, namely, internet regulation, socio-legal studies, and actor-network theory.
448

台灣推動第四代行動通訊WiMAX的行動者網絡分析 / An Actor-Network Analysis of the promotion of semi-4G WiMAX in Taiwan

邱鈞彥, Theodre, Chiu Unknown Date (has links)
摘要 台灣產官學研自2005年起推動被稱為準4G(第四代行動通訊)的WiMAX技術,然而今日WiMAX不但未成為國際通用的4G技術,在台灣市場也無法做大。本文以「行動者網絡理論」作為主要分析工具,輔以「後進技術框架」為鉅觀視野,還原台灣推動WiMAX的行動歷程。透過檢閱期刊文獻、官方資料、媒體報導,以及訪談科技法人、營運商、官員、技術專家、使用者、環運人士,研究結果如下: 2005年在代工困境及PC產業成長趨緩的背景下,台灣產官學研持續尋求解套辦法。產官人士發現,技術專利有助於刺激產業升級,而通訊技術則能帶動硬體裝置銷售成長,市場潛力大。當時恰逢電機電子工程師學會(IEEE)正在研發WiMAX,有許多技術專利可供搶佔,加上IEEE對外較開放,因此轉譯了台灣產官人士的興趣,促使WiMAX技術網絡在台灣萌生。 然而受到傳統電信商不支持、執照分區及載具限制等因素影響,WiMAX在台灣的用戶數始終停滯不前。為了解決市場限制,營運商透過命名、訊號轉換及體驗行銷等方式,力圖擴大市場。本研究也發現,WiMAX在使用者與訊號轉換器的共同運作之下,多被用成解決Wi-Fi覆蓋死角的網路技術,而未被當成行動網路來使用。傳統電信業者所慣用的綁約機制,則是影響使用者選擇進用WiMAX的關鍵因素。 承接前述脈絡,本文發現台灣推動WiMAX乃後進技術國家追尋現代性的顯著案例,我國治理組織推動WiMAX的主要目的並非佈局4G,而是為了取得專利、帶動產業升級、刺激產業典範轉移。在WiMAX網絡的萌生過程中,南韓則因為擁有成功的CDMA經驗,取代了歐美先進技術國家,成為台灣苦苦追趕的對象。 / Abstract From 2005, the Government-industry-university-research collaboration started to promote WiMAX, as the so called semi-4G, in Taiwan. However, WiMAX didn’t become the globally used standard, nor developed very well in Taiwan. The analytical frame of this paper is based on actor-network-theory(ANT), while applying the post technological frame. The research data are collected from Journal articles, formal informations, media reports and 8 actors. The results are as follower: The dilemma that OEMs are facing and the down of PC market shake off economics downturn in Taiwan. The Government-industry-university-research collaboration continued to find the solution to change the manufacturing paradigm. Around 2005 they found out the IPR and wireless broadband are having much market potential. At that time the IEEE was developing WiMAX standard. WiMAX and its IPR translate the Government-industry-university-research collaboration’s interests. Due to the lack of telecom operator’s support, license arrangement, and limitations of device capabilities the subscribers of WiMAX didn’t grow massively. For expanding the market, operators used naming, signal device, and experiential marketing to promote WiMAX. However, WiMAX was used as a Wi-fi not a Mobile broadband by the users and signal devices. The contract tied with 3G and Wi-fi impacted the subscribing of WiMAX. The promotion of WiMAX in Taiwan was a significant case of post technological country. The aim of promoting WiMAX was not for 4G, but for the paradigm shifting. In the promoting process, South-Korea played an important role as advanced technological country for Taiwan to chase up.
449

The effect of a dynamic technological learning environment on the geometry conceptualisation of pre-service mathematics teachers / by Jeannette Kotze

Kotze, Jeannette January 2006 (has links)
Traditionally, geometry at school starts on a formal level, largely ignoring prerequisite skills needed for formal spatial reasoning. Ignoring that geometry conceptualisation has a sequential and hierarchical nature, causes ineffective teaching and learning with a long lasting inhibiting influence on spatial development and learning. One of the current reform movements in mathematics education is the appropriate use of dynamic computer technology in the teaching and learning of mathematics. Concerning mathematics education, the lecturers may involve the introduction of both dynamic computer technology and mathematics in meaningful contexts that will enable interplay between the two. Pre-service mathematics teachers (PMTs) can be encouraged to become actively involved in their learning and, therefore, less frustrated in their study orientation in mathematics. Therefore, such learning environments may be essential to enhance the conceptual understanding of PMTs. To be able to reach their eventual learners, PMTs' own conceptual understanding of geometry should be well developed. When PMTs have conceptual understanding of a mathematical procedure, they will perceive this procedure as a mathematical model of a problem situation, rather than just an algorithm. This study aimed at investigating the effect of a technologically enhanced learning environment on PMTs' understanding of geometry concepts and their study orientation in mathematics, as prerequisite for deep conceptualisation. A combined quantitative and qualitative research approach was used. The quantitative investigation employed a pre-experimental one-group pre-test post-test design. A Mayberry-type test was used to collect data with regard to PMTs' conceptualisation of geometry concepts, while the Study Orientation in Mathematics (SOM) questionnaire was used to collect data with regard their study orientation in mathematics. The qualitative investigation employed phenomenological interviews to collect supplementary information about the participating PMTs' experiences and assessment of the influence of the use of the dynamic software Geometer's Sketchpad (GSP) on their learning and conceptualisation of geometry concepts. During post-testing the participating group of PMTs achieved practically significantly higher scores in the Mayberry-type test, as well as in all fields of the SOM questionnaire. Results seem to indicate that PMTs gained significantly in the expected high levels of conceptualisation, as well as high degrees of acquisition of those levels during the intervention programme. The main conclusion of the study is that a technologically enhanced learning environment (such as GSP) can be successfully utilised to significantly enhance PMTs' conceptualisation and study orientation, as prerequisite for deep conceptualisation, in geometry. / Thesis (M.Ed.)--North-West University, Potchefstroom Campus, 2006
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An empirical examination of the impact of ICT on the functioning of the Lebanese Ministry of Finance

Rawas, Mahmoud January 2013 (has links)
his study attempts to obtain a holistic view of ICT application and its impact in the context of a developing economy taking the Lebanese Ministry of Finance as a case study. It draws on the works of Heeks and Stanforth (2007) and Tseng (2008) for the pre-deployment phase of the e-Gov application and the post-implementation phase respectively. Heeks and Stanforth used actor network theory to study the trajectory taken by the Sri Lankan e-Gov project, while Tseng used a form of Structuration theory known as Orlikowski's Model of Technology to gauge the impact of an Electronic Government Information System (EGIS) on the Taiwanese Ministry employees. To the knowledge of the researcher the chosen research site has never been investigated before. This necessitated that the design phase of the study needed to be assessed first in order to get in-depth information about the contingent and local contextual factors and to ascertain the level of progress in the design and deployment of the ICT tools and techniques. For the post- implementation phase, this longitudinal study assessed the perceived effectiveness of the ICT impact on the end users - the employees. In addition, secondary data collected from the Ministry and the International Monetary Fund was used to corroborate the research. The study found that the use of 'trajectory mapping' was a crucial tool for investigating the initial ICT adoption process. This is due to its strength in exposing contextual factors, its ability to identify social and technical determinism at different stages of the investigation and its suitability in revealing political wrangling and identifying the dynamism of power in a public institution. The study's findings also reveal the presence of both technical determinism and social determinism throughout the project, restructuring of the organisation due to the introduction of an ICT unit and job redesign in the whole MoF. The study also found out that ICT resulted in a power shift within the organisation by having the IT unit gain power due to its ICT knowledge. The investigation, however, could not find a direct relationship between the 'degree of success' end point suggested by Heeks and Stanforth (2007) and the sought benefits from the ICT impact. In other words, the proposed 'degree of success' may only explain the design aspect of the EGIS, however, this study found that success or demise depends also on the implementation process and the preparedness of citizens to receive such IT services. Furthermore, the study was able to empirically investigate the applicability of the three layered model suggested by Omoteso et al. (2007) and found out that considering contingency as dynamic is more applicable than the static contingency proposed in the model. The study realised that there is a great need for a continuous, contemporary training process in the ever-changing ICT environment in order to achieve uninterrupted positive results. Finally, the study indicates that lack of vertical communication, as observed in the Lebanese public institution, between users, ICT designers, and decision makers weaken the whole change process. Therefore, it suggests a form of knowledge management application using ICT as the main venue, a transition from the current mechanistic (bureaucratic) structure to an organic (flat) structure.

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