• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 154
  • 67
  • 31
  • 19
  • 18
  • 18
  • 13
  • 6
  • 5
  • 3
  • 3
  • 2
  • 2
  • 1
  • 1
  • Tagged with
  • 344
  • 185
  • 159
  • 148
  • 87
  • 58
  • 56
  • 48
  • 48
  • 42
  • 38
  • 37
  • 36
  • 35
  • 35
  • 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.
301

Transcriptional interference between nuclear receptors and activator protein-1

Gao, Wenli 08 1900 (has links)
Thèse numérisée par la Direction des bibliothèques de l'Université de Montréal. / Les récepteurs nucléaires sont des facteurs transcriptionnels impliqués dans la regulation de la croissance cellulaire, en partie dû à leurs effets génomiques. Une voie alternative est l'interference entre les récepteurs nucléaires et le facteur transcriptionnel AP-1 (activator protein-1), composé de protéines induites par plusieurs facteurs de croissance et molécules de signalisation. Dans ce projet, j'ai analysé les mécanismes d'interférence transcriptionnelle entre les récepteurs des oestrogènes (ER), les récepteurs des glucocorticoïdes (GR) et AP-1. / Nuclear receptors constitute a large superfamily of DNA binding transcriptional regulators that can regulate a diversity of important cellular events, such as development, differentiation, and responses to extracellular stimuli. These effects are mediated mostly by the genomic effects of nuclear receptors which bind selectively to DNA (hormone response element), and regulate target gene transcription. An alternative pathway of transcriptional regulation is the crosstalk between nuclear receptors and other transcription factors, such as NPKB, or activator protein-1 (AP-1). Transcription factor AP-1 is composed of nuclear proteins encoded by the Jun family and Fos family of protooncogenes, whose transcription is rapidly induced by a number of growth factors and other signaling molecules. AP-1 is implicated in diverse aspects of cell growth, differentiation and development. In this project, I have focused on the analysis of the mechanisms of transcriptional interference between nuclear receptors and AP-1.
302

行動政府 行?不行?-- 臺灣群眾對公部門Line公共服務類官方帳號 接受因素的調查分析 / Investigating Factors Affecting Adoption M-government in Taiwan: a Case Study of Public Service Line Official Account

黃宇萱, Huang, Yu Hsuan Unknown Date (has links)
「行動革命」到來,智慧型手機、平板或各式行動載具滲透人們日常生活,對人類的傳播模式產生了極大的變化。同樣的,這場行動革命,也襲捲到了公部門,「行動化」趨勢改變了政府現有的傳播方式。 在臺灣近年的行動媒介環境中,Line成為最普及的大眾化通訊程式,臺灣公部門也藉Line此行動平臺,試圖突破過往的傳播方式,公部門在Line平臺中的公共服務類官方帳號也先後上線。隨著行動裝置成為不可或缺的工具,這樣的行動官方帳號,更已成為臺灣政府在行動媒體時代資訊發布的重要管道。 基於上述研究背景與動機,本研究擬達成之研究目的為:(1)瞭解臺灣Line公共服務類官方帳號使用者的輪廓形貌;(2)調查臺灣群眾對於Line公共服務類官方帳號的使用行為;(3)瞭解影響臺灣群眾採用Line公共服務類官方帳號的因素;(4)建立並驗證描述「知覺實用性」、「知覺易用性」、「資訊內容品質」與「使用滿意度」之因果關係的假設和觀念性架構。 最終,以436份網路問卷資料,經結構方程模型驗證,本研究的5項假設均成立:Line公共服務類官方帳號中,使用者的「知覺實用性」、「知覺易用性」和「資訊內容品質」,皆對Line公共服務類官方帳號使用者的「使用滿意度」有正向且顯著的相關性。此外,研究中也檢驗出Line公共服務類官方帳號的「知覺易用性」以及「資訊內容品質」皆對於其「知覺實用性」有正向且顯著的關係。其中「知覺實用性」,是影響使用者採用Line公共服務類官方帳號的最重要因素。 本研究構建並驗證影響臺灣群眾對Line公共服務類官方帳號採用之因果模型,當中各構面之間皆具顯著相關,因此,以TAM為基礎,並加入「資訊內容品質」 的擴增模型,在預測臺灣群眾對Line公共服務類官方帳號的採用上,具有顯著效果。 / The development of mobile access technologies and the rapid growth of mobile broadband along with explosion of the mobile application ecosystem have created a new communication channel between the public administration and citizens. With mobile devices being one of the main tools of communication, Taiwan government agencies are increasingly using Line, one of the most popular messaging Apps in Taiwan, in a bid to increase effective communication with their citizens. Therefore, the purpose of the paper is to (1)understand the behavioral and demographic attributes of the Public Service Line Official Account users; (2)propose an integrated model of Public Service Line Official Account acceptance by integrating perceived usefulness, perceived ease of use from Technology Acceptance Model(TAM), information quality theory and user satisfaction theory. The model and relationships were tested and validated with the Structural Equation Modeling(SEM), using data gathered from 436 users of Public Service Line Official Account in Taiwan. The results suggest that user satisfaction is directly influenced by perceived usefulness, perceived ease of use and information quality, whilst perceived usefulness is directly influenced by perceived ease of use and information quality. In addition, perceived usefulness to be a major influence on the adoption of Public Service Line Official Account in Taiwan.The implications of these findings are discussed.
303

Matematiklärarens förutsättningar att använda digitala lärspel i undervisningen : En kvalitativ studie om lärares teknikacceptans

Olsson, Anton, Jeppsson, Alexander, Kvarnström, Ebba January 2023 (has links)
Genom att använda välutformade digitala lärspel med tydligt syfte kanelevers inlärning förbättras och deras positiva attityder gentemotmatematikämnet främjas. För att framgångsrikt införa digitala lärspel imatematikundervisningen är det avgörande att lärare visar acceptans förtekniken. Det krävs emellertid att lärare är villiga att integrera tekniken i sinundervisning och ser värdet i dess användning för att kunna implementeradigitala lärspel i matematikundervisningen. Syftet med denna studie är att tareda på och synliggöra vad för förutsättningar matematiklärare i årskurs 4–6upplever sig behöva för att implementera digitala lärspel imatematikundervisningen. Empirin till studien samlades in genomsemistrukturerade intervjuer med tolv verksamma matematiklärare från femkommunala skolor, fördelat på fyra kommuner. Det teoretiska ramverk somanvänds i studien är Technology Acceptance Model (TAM). Förbearbetningen av empiri används en tematisk analys, som genererar femteman: (1) Erfarenhet och intresse, (2) Kollegial stöttning, (3)Kompetensutveckling, (4) Skolledningens ansvar och (5) Tid. Dessa temananalyserades med en induktiv ansats baserad på TAM. Studien visar attkollegial stöttning, kompetensutveckling, erfarenhet, ansvarstagande avskolledning och tid är aspekter som lärare upplever sig behöva för attunderlätta implementering av digitala lärspel i matematikundervisningen. / By using well-designed digital learning games with a clear purpose,students' learning can be improved, and their positive attitudes towards thesubject of mathematics can be promoted. To successfully introduce digitallearning games in mathematics education, it is crucial for teachers todemonstrate acceptance of the technology. However, it requires teachers tobe willing to integrate the technology into their teaching and recognize itsvalue in order to implement digital learning games in mathematicseducation. The purpose of this study is to identify and highlight whatconditions do mathematics teachers in grades 4-6 perceive they need inorder to implement digital educational games in mathematics instruction.The empirical data for the study was collected through semi-structuredinterviews with twelve practicing mathematics teachers from five publicschools, distributed across four municipalities. The theoretical frameworkused in the study is the Technology Acceptance Model (TAM). A thematicanalysis was employed for processing the empirical data, which generatedfive themes: (1) Experience and interest, (2) Collegial support, (3)Professional development, (4) School leadership responsibility, and (5)Time. These themes were analyzed using an inductive approach based onTAM. The study reveals that aspects such as collegial support, professionaldevelopment, experience, school leadership accountability, and time areperceived by teachers as necessary to facilitate the implementation of digitaleducational games in mathematics instruction.
304

Tense, mood, and aspect expressions in Nafsan (South Efate) from a typological perspective / The perfect aspect and the realis/irrealis mood

Krajinovic Rodrigues, Ana 21 July 2020 (has links)
In dieser Arbeit untersuche ich aus einer typologischen Perspektive die Bedeutung von Tempus, Modalität und Aspekt (TMA) in Nafsan (South Efate), einer ozeanischen Sprache Vanuatus. Ich konzentriere mich auf die Bedeutung des perfektiven Aspekts und der Realis/Irrealis-Modalität in Nafsan und anderen ozeanischen Sprachen, als Fallstudien zur Untersuchung der sprach-übergreifenden Merkmale dieser TMA-Kategorien. Um ihre Bedeutungen in Nafsan zu analysieren, untersuche ich die Grammatik von Nafsan (Thieberger, 2006) und den Korpus von Thieberger (1995–2018), gefolgt von meiner Feldarbeit (Krajinovic, 2017b). Meine Analysen zeigen, dass Perfekt in Nafsan alle Funktionen hat, die für das Perfekt im Englischen typisch sind, mit Ausnahme der zusätzlichen Bedeutung von Zustandsänderungen. Die Verwendung des Nafsan-Perfekts liefert einen Beitrag zu der Debatte über die sprachübergreifende Gültigkeit von Iamitive, definiert durch die Bedeutung von Zustandsänderungen (Olsson, 2013). Basierend auf den Daten aus Nafsan und anderen ozeanischen Sprachen zeige ich, dass die von Klein (1994) vorgeschlagene semantische Definition des Perfekts ausreichend ist, um zusätzliche Funktionen des Perfekts zu berücksichtigen, ohne eine neue Iamitive-Kategorie zu etablieren. Was die Unterscheidung zwischen Realis und Irrealis betrifft, so habe ich festgestellt, dass die Kategorie Realis in Nafsan semantisch unterbewertet ist, wie sie in Irrealis-Kontexten auftreten kann, die mit der Bedeutung von Realis unvereinbar sein sollten. Ich schlage vor, dass “Realis” gelegentlich Realis-Bedeutungen durch pragmatischen Wettbewerb mit Irrealis erhaltet. Indem ich das “branching-times’’ Modell annehme, das den Ausdruck von Modalität und zeitlichem Bezug vereint (Prince, 2018), zeige ich, dass Nafsan und mehrere andere ozeanische Sprachen Beweise dafür liefern, dass Irrealis als Modalitätskategorie, die sich auf nicht-aktuelle Welten bezieht, eine semantisch sinnvolle Kategorie ist. / In this thesis I study the meaning of tense, mood, and aspect (TMA) expressions in Nafsan (South Efate), an Oceanic language of Vanuatu, from a typological perspective. I focus on the meanings of the perfect aspect and realis/irrealis mood in Nafsan and other Oceanic languages, as case studies for investigating the cross-linguistic features of these TMA categories, frequently disputed in the literature. In order to analyze their meanings in Nafsan, I studied the Nafsan grammar (Thieberger, 2006) and corpus by Thieberger (1995–2018), followed by storyboard and questionnaire elicitation in my fieldwork (Krajinovic, 2017b). I found that the Nafsan perfect has all the functions considered to be typical of the English-style perfect, except for the additional meaning of change of state. I place the analysis of the Nafsan perfect in the debate about the cross-linguistic validity of the newly proposed category of iamitives, defined by the meaning of change of state akin to `already' and lacking experiential and universal perfect functions (Olsson, 2013). Based on the data from Nafsan and other Oceanic languages, I show that, when language-internal processes are considered, the semantic definition of perfect proposed by Klein (1994) is sufficient to account for additional perfect functions, without the need to posit the new iamitive category. Regarding the realis/irrealis distinction, I have found that the “realis” category is semantically underspecified in Nafsan, as it can occur in irrealis contexts that should be incompatible with realis meanings. I propose that “realis” in Nafsan only occasionally receives realis meanings through pragmatic competition with the irrealis category. By adopting a branching-times model that unites the expression of modality and temporal reference (Prince, 2018), I also show that Nafsan and several other Oceanic languages provide evidence that irrealis as a mood category referring to non-actual worlds is a semantically meaningful category.
305

低價小筆記型電腦市場區隔研究-以華碩Eee PC為例 / The research of market segmentation for low-price laptop--taking ASUS Eee PC for example

蔡桂賓, Tsai, Kuei Pin Unknown Date (has links)
Eee PC的低價小筆記型電腦的銷售成功,小筆記型電腦衍然己被筆記型電腦廠商視為下一個藍海市場,以產品生命週期來看,Eee PC由萌芽期進入成長期,而早期辨出消費者中的創新使用者及早期採用者,在新產品發展階段有策略上的重要意義,本研究目的在進一步辨識出消費者及其使用習慣,讓市場行銷人員能選定目標市場及制定適當的行銷策略。 本研究以消費者決策歷程(Consumer Decision Process, CDP)為基礎,在配合科技接受理論TAM (Technology Acceptable Model)當中的有用知覺(Perceived Usefuless, PU) 及易用知覺 (Perceived Eas of Use, PEOU) 發展成本研究的研究架構,並以線上問卷便利取樣己購買Eee PC的消費者,以AIO生活型態做為Eee PC消費者使用者行為的市場區隔基礎,以市場區隔理論(Segmentation)及創新擴散理論將消費者予以區隔,利用因素分析、集群分析、變異數分析、卡方檢定及區別分析等統計方法做為分析方法的工具,試圖分辨出購買Eee PC的使用者並了解Eee PC購買者的使用習慣。 本研究經由實證分析得到了以下的發現: (1)Eee PC消費者具有創新者與早期使用者的特性 (2)依Eee PC消費者之購買行為資料分析,消費者最重視的產品屬性 為小巧方便攜帶及重量輕盈而非價格低廉。 (3)Eee PC消費者資訊搜尋對象以網站為主,但購買仍以實體通路為 主。 (4)Eee PC消費者購買用途以休閒娛樂及工作課業需要為主,不同族 群之間有有顯著差異。 (5)依人口統計變數來看,各族群在特徵上有所不同。 (6)依知覺程度來看,各族群在知覺程度上有所不同。 / The success of selling of ASUS’s Eee PC, the low-priced laptop, led Eee PC be taken as the next blue ocean for notebook manufactures. In the product life cycle of Eee PC, it has been changed from the introduction stage to growth stage. Early identification of the innovators and early adoptors is a strategical important meaning for new product development. The research is to identify the the consumers and their consuming habits, so that the marketing departments can select an ideal market segment and to employ effective marketing tactics. The research is based on the conceptual framework for the consumer decision process proposed by Kolter & Keller (2007) and combines the perspective from the Technology Acceptance Model proposed by Davis(1989) to identify the consumer of Eee PC and explores their satisfacation and how they use Eee PC. Finally, the research uses the traditional stastics tool to differentiate Eee PC buyers based on Psychology variables from AIO theory proposed by Plummer(1974) and segmentation theory proposed by Wind(1978). The research obtains the following findings: (1) Eee PC buyers can be distinguished as innovator and rearly adoptor. (2) According to the data analysis from Eee PC, the features that consumers highly concerned are easy and light for hand-carry instead of cheap price. (3) Eee PC buyers use internet to search information, but they buy Eee PC via the physical channel or stores (4) Eee PC buyers use Eee PC for entertainment and academic or job purpose. (5) As the point of view in demographic, two clusters are significance different. (6) As the point of view in perspective, two clusters are significance different.
306

[en] ACCEPTANCE AND INTENTION TO USE MOBILE LEARING: MODELING AND EMPIRICAL TESTING OF STUDENTS WITH HIGHER EDUCATION / [pt] ACEITAÇÃO E INTENÇÃO DE USO DO MOBILE LEARNING: MODELAGEM E TESTE EMPÍRICO COM ALUNOS DE ENSINO SUPERIOR

MARIA LUIZA AZEVEDO DE CARVALHO 26 August 2013 (has links)
[pt] Mobile Learning ou aprendizagem com mobilidade é a aquisição de conhecimento e habilidades por meio de tecnologias móveis em qualquer lugar e em qualquer tempo. É possível usar as tecnologias móveis e sem fio para acessar ambientes virtuais de aprendizagem, realizar cursos, interagir com colegas e instrutores e, buscar ou postar materiais em diferentes contextos ou momentos. Apesar de o mobile learning estar se espalhando no mundo, ainda é incipiente a comprensão sobre os fatores que impulsionam a sua adoção. Esta pesquisa revisou a literatura sobre mobile learning e modelos de adoção de tecnologia com o objetivo de investigar que fatores influenciariam a intenção de uso do mobile learning. O estudo foi realizado com alunos de graduação de uma Universidade Particular da cidade do Rio de Janeiro e obteve uma amostra de 402 discentes, por meio de uma survey. A coleta dos dados foi feita usando de um questionário estruturado com 52 questões. Os resultados, obtidos mediante o uso de modelagem de equações estruturais, indicam que as percepções de utilidade de curto prazo apresentaram os efeitos mais fortes dentro dos construtos avaliados sobre a intenção de usar m-learning por estudantes de ensino superior. Efeitos significativos também foram encontrados para facilidade de uso, compatibilidade e autoeficácia. / [en] Mobile Learning or learning with mobility is the acquisition of knowledge and skills through mobile technology anywhere and at any time. You can use the mobile and wireless technologies to access virtual learning environments or accomplish several other goals, such attending a course, interacting with colleagues or instructors, seeking or posting content in different contexts or moments. Although mobile learning is spreading in the world, there is a lack of research on the factors that drive its adoption. This study revised the literature on mobile learning and models of technology adoption in order to understand which factors influence the intention to use mobile learning by higher education students. In order to achieve such a goal, a survey was conducted on undergraduate students of a private university in Rio de Janeiro, with a sample of 402 students being obtained. Data collection was conducted through a structured questionnaire with 52 items. Structural equations modeling was employed, with the results indicating that perceptions of short-term utility showed the strongest effect on the intention to use m-learning by higher education students, with significant effects also found for ease of use, compatibility and self-efficacy.
307

Crise aérea e comunicação: o acidente do vôo 3054 da TAM à sombra da mídia / Crise aérea e comunicação: o acidente do vôo 3054 da TAM à sombra da mídia

Salvador, Leandro Pires 13 October 2008 (has links)
Made available in DSpace on 2016-04-26T18:17:29Z (GMT). No. of bitstreams: 1 Leandro Pires Salvador.pdf: 1533863 bytes, checksum: 0ad9fa1b5d34a4c29ae31fb8463b8761 (MD5) Previous issue date: 2008-10-13 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / This research work attempts to comprehend the way through which the media is capable of distorting, amplifying, minimizing, creating or hiding perceived realities, as it follows the ideological line (named "editorial line"), although usually it is not assumed. It is understood that there is a relationship between the State, the market and the media as institutions that maintain power over society. Corporate media, as a group of companies, is aligned with the market in two ways: through means of prot, common to any capitalist corporation, and as a representative of ideologically hidden interests. With this in mind, the research work investigated the roots of the contemporary cultural context, focusing on a serious crisis in the Brazilian airline market, a crisis which culminated in an airplane accident with 199 deaths. In this event, the media made it clear that the market dominated over the State, with respect to the first reality (to the following of regulations and physical limitations) as well as the second reality (weakening of the State and defending the hypothesis that the market regulates itself following natural laws, which are ideologically built). We investigated how the methods that are appropriate to the analysis of physical and biological phenomena, when applied in journalism, hide the essential causes of that which is investigated, well as the possible interests, and how this approach has been ideologically used in different Communication Schools as well as by journalistic work. The research work focused on media coverage by the electronic version of the Folha de São Paulo newspaper (Folha Online) related to the developments of the airline crisis up to the point of the TAM Flight 3054 disaster. Thereafter, it focused on three facts which, as covered by the general media, could not be clearly understood or interpreted by the general public / Esta pesquisa busca compreender de que modo a mídia é capaz de distorcer, amplificar, minimizar ou criar e ocultar realidades, segundo a linha ideológica (chamada "linha editorial") adotada pelo veículo, embora freqüentemente não assumida. Entendemos existir uma relação entre o Estado, o mercado e a mídia como instituições que detêm poder sobre a sociedade. A mídia corporativa, enquanto conjunto de empresas, apresenta-se duplamente alinhada ao mercado: seja pelos fins lucrativos que tem em comum a qualquer outra corporação tipicamente capitalista, seja por servir como representante de interesses ideologicamente ocultados. Com este foco, o presente trabalho de pesquisa investigou as raízes do contexto cultural atual, dentro do qual ocorreu uma grave crise no mercado de transporte aéreo brasileiro que teve como ápice um acidente com 199 vítimas fatais. A cobertura midiática deste evento permite concluir que o mercado venceu o Estado tanto no que diz respeito à primeira realidade (respeito a regulamentos e limitações físicas) quanto à segunda (enfraquecimento do Estado e defesa da hipótese de que o mercado se auto-regula de acordo com leis naturais, ideologicamente construídas). Investigamos como métodos que são adequados à análise de fenômenos físicos e biológicos, ao serem aplicados no jornalismo, escondem as causas essenciais daquilo que é investigado, bem como de possíveis interesses em jogo, e como esta abordagem tem sido ideologicamente utilizada tanto por pesquisas realizadas em influentes Escolas de Comunicação, quanto pela própria praxis jornalística. A pesquisa focou a cobertura do jornal Folha de São Paulo, em sua versão eletrônica Folha Online, sobre o desenvolvimento da crise aérea até o acidente do Vôo 3054 da TAM. A partir daí, focou sobre três fatos que, da maneira como foram cobertos pela mídia em geral, não puderam ser claramente compreendidos ou interpretados pelo público em geral
308

The adoption of advanced mobile commerce services by individuals: investigating the impact of the interaction between the consumer and the mobile service provider

AlHinai, Yousuf Salim January 2009 (has links)
This research investigates the impact of the interaction between the consumer and mobile service provider on the adoption of advanced mobile commerce services by existing consumers of mobile technology. These factors include: 1) Perceived Relationship Quality (PRQ), which is the consumer’s evaluation of the quality of his/her relationship with the mobile service provider, and 2) Perceived Value of the Adoption Incentive (PVI), which is the consumer’s evaluation of the value of incentives that are offered by the service provider to entice him/her to adopt the mobile service. The influence of these factors on consumer attitudes and intentions towards adopting mobile commerce services is studied and compared with three other well-known adoption factors including perceived usefulness, ease of use and the subjective norm. / This study was undertaken in three parts. Firstly, a conceptual study was conducted to investigate and analyse the existing literature on consumer adoption of mobile commerce services. This phase started with a general review of the existing studies using a novel model: the Entities-Interactions Framework, EIF. The EIF explains adoption behaviour in terms of interactions between the consumer and the other entities including the mobile service, the service provider and the social system. This framework was used to analyse the extent to which important adoption factors have been covered by past research and therefore identify the research questions. The conceptual study resulted in the development of a research model and relevant hypotheses. / Secondly, a large-scale questionnaire survey was conducted to test the research model and the proposed hypotheses. This part of the research helped give a broad picture of the influence of consumer-service provider factors on consumer adoption of mobile commerce services. Thirdly, face-to-face interviews with mobile phones users were conducted in order to validate the survey results and provide an understanding of the mechanisms that control the impact of the investigated factors. The research found that PRQ and PVI have an important influence on the attitude and intention of existing mobile phone users towards accepting and using advanced mobile commerce services. Furthermore, the research found that these newly introduced factors are more influential on consumer adoption perceptions than other well-established factors. / The study enriches our understanding of technology adoption by individuals because it explains why an existing user of a technology, such as mobile technology, will or will not adopt advanced versions of that technology. The findings affirm that in the context of communication technologies, which are interactive by nature, understanding the interaction between consumers and service providers is a key to understanding the progressive adoption by consumers of advanced forms of these technologies. The thesis provides practitioners (particularly mobile service providers) with a better understanding of the impact and implication of their interaction with consumers on consumers’ acceptance and use of mobile services. The study emphasises the importance of incorporating this understanding throughout the mobile service provision process, starting from the conceptualisation of the service to the actual provision of the service to the market. The study also offers a novel comprehension of how to view each mobile service offer as a consequence of the previous offer and a precedent of the next in order to enhance consumer adoption of mobile service in the short and long runs.
309

The application of usability principles to create web-based applications that achieve increased system usage

Bezuidenhout, Stephanie January 2011 (has links)
<p>This research work investigates and reports on the contribution of usability and perceptual frameworks towards understanding and ultimately increasing usage of a sales website and a corporate marketing website for a major insurance company in South Africa. It investigates whether the application of usability principles to the sales web positively influences the usage of the sales web system as a tool by intermediaries, and in so doing help the organisation recoup their investment and lower operational costs. This financial services (traditionally insurance) company, like many organisations, is in the process of migrating key operational systems onto web platforms to take advantage of benefits such as the ubiquity of web access and services orientated architecture among others. The research reviewed key frameworks in the area of technology acceptance or usage namely  Nielsen‟s usability attributes (Nielsen, 2003)  The Technology Acceptance Model (TAM), (Davis, 1989)&nbsp /  The Theory of Reasoned Action (Fishbein &amp / Ajzen, 1975)  The Theory of Planned Behavior (Ajzen, 1985) / and derived a theoretical summative model (the Conceptual Research Model) that combined both usability and perceptual dimensions. The applicability of this summative model was empirically tested using quantitative data relating to system&nbsp / usage and user perception. Empirical evidence was gathered to prove and refine the Conceptual Research Model (CRM), and the data substantiated the inclusion of the constructs in the CRM, as well as the efficacy of the model in a financial services organisation. Through testing of the CRM, this research has also confirmed which specific attributes of usability can be focussed on to bring about positive change in users‟ usage behaviour and adoption of a website or web application.</p>
310

個人用戶對網路銀行接受行為研究-信任與科技接受模式的整合性探討

許榮洲 Unknown Date (has links)
隨著網路的發展與普及,有愈來愈多人選擇使用網路來進行日常活動,而網路銀行就是一例。網路銀行具有多種的好處:對於使用者而言,它提供隨時、隨地處理財務的通道;對銀行而言,它可以降低營運成本、減輕臨櫃負擔、增加收續費收入、吸引客戶、減少客戶流失的成本與提供網路宣傳的廣告。參考美國的發展經驗,若能有效提昇網路銀行使用人口,那麼銀行將會增加可觀的獲利,因此本研究藉由探討、解釋使用者為何願意再次使用網路銀行的行為來了解現行台灣網路銀行的使用率偏低的可能原因,以利於網路銀行的推擴及策略的制定。   網路銀行同電子商務,表徵是科技,本質是商業。接受使用網路銀行的行為,相當於代表同時接受使用新科技與信任它-科技接受模式(TAM, Technology Acceptance Model)與信任理論需整合性探討,由於台灣過去中並沒有此類研究,因此本研究藉由移植Gefen, Karahanna et al. (2003)的整合模型至網路銀行的議題上,俾希望能夠清楚而完整地陳述與解釋使用者願意再次使用網路銀行的行為,最終有助於提高網路銀行的使用量。   信任理論部份採用McKnight, Larry et al. (1998)對於信任的看法,一方面是因為它整合了了各種不同學派(心理學、社會學、社會心理學、經濟學等)對於形成信任關係的解釋,另一面它以理性行為模式(TRA, Theory of Reasoned Action)的順序結構形成模式-信念、態度、意圖、行為的順序架構。而正由於科技接受模式源自於理性行為模式,因此在做適度的必要調整後,Gefen, Karahanna et al. (2003)。將之集結成一整合模式。而模式中,「信念」整合了各種「因素」的影響再對「行為意圖」造成影響,其中形成信任的因素有:計算原則的信任、體制結構的保障、境遇的正常性與熟悉性因素;而信念有:信任、認知易用與認知有用信念。由於本研究探討的議題是台灣的網路銀行,不同於探討新網路商店的被接受使用行為,因此本研究在模型移植過程中以創新擴散理論(DOI, Diffusion of Innovation)的配適性(Compatibility)來取代境遇正常性因素。   為驗證移植模式,本研究採網路問卷的方式進行資料的收集與分析,問卷的問項設計主要是來自於文獻所提供的問項,在經過適當的中文化、調整語意與試問後,最後得到9個構念共29個問項。網路問卷的訊息曝光主要有兩個管道,其一是委由優仕網獎勵其會員填答,另一則是本研究將問卷訊息公布在各大bbs站與各大入口網站的金融討論區當中。在扣除隨意作答與無效問卷後,本研究最後得有效問卷217份。而資料分析部分,除了分析人口統計資料的敘述統計量外,由於結構方程模式(SEM, Structural Equation Modeling)進行分析,能夠同時進行因素分析與路徑分析的特性,因此本研究選擇作為主要的分析方法。 在經過一系列結構方程模式的操作流程包含了模型界定、辨識、參數估計、模型契合度估計與模型修飾後,本研究得僅進行小部份的修飾的模型,由於評估問卷測量品質的測量模型的指數當中,不論信度[內部一致性信度(Chronbach’s α)亦或是建構信度]或效度[建構效度]上都表現相當優良,因此結構模型的各路徑係數的可信度與有效度相當高。 本研究在經過了各路徑的分析之後,做出了以下幾個結論: 1. 商業面的〝信任〞議題影響使用者有意願繼續使用網路銀行的影響力,較科技面的〝科技接受〞議題來得大。 2. 現行影響網路銀行使用者信任的因素,主要為計算原則的信任因素、其次為熟悉性因素;而體制結構的保障因素對信任的影響力非常小,至於配適性因素則無影響力。 3. 科技接受議題也受信任議題的影響。因此認知易用與認知有用皆受計算原則的信任與熟悉性因素間接影響。而除此之外,認知有用尚受配適性因素的直接影響,在影響力上,信任的因素所帶來的間接整體影響力上,略大於適配性因素。

Page generated in 0.0522 seconds