[pt] O mundo deparou-se com uma mudança eletrônica que afetou a forma como as pessoas se comunicam e que transformou toda a cadeia de valor, desde os produtores e vendedores até aos consumidores. A Internet revolucionou o marketing, que é definido como as trocas entre os indivíduos e as firmas. Comprar pela Internet está se tornando uma forma bem aceita de comprar vários tipos de produtos e serviços, incluindo produtos de computador, carros, viagens, investimentos, roupas, flores, livros, música e imóveis. Muitos fatores estão ajudando o desenvolvimento do mercado na Internet, alguns estão relacionados a avanços tecnológicos, outros à forma como o mundo corporativo mudou suas percepções e alguns relacionados à mudança do estilo de vida dos consumidores. O desenvolvimento de softwares de navegação e sistemas de busca melhores está transformando as visitas à Internet em experiência melhores e mais excitantes. O aumento da quantidade e qualidade de informação disponível e a presença de corporações e marcas conhecidas na Internet também estão gerando mais interesse por parte dos consumidores. Em 1995, as compras online eram uma novidade e esperava-se que chegassem a US bilhões no ano 2000 e a US,2 trilhões em 2003 (Forrester Research, 1998). Há um número crescente de companhias que podem ser acessadas pela Internet e que, consequentemente, provêm os consumidores com uma forma conveniente e barata de tornar-se um membro da comunidade da internautica. Porém, a maioria dessas empresas está perdendo dinheiro. Por que esse fenômeno aparentemente contrário à intuição está ocorrendo? A explicação pode estar nos riscos associados às compras pela Internet. Esses riscos podem surgir, porque os consumidores estão preocupados com a segurança da transmissão do número de seu cartão de crédito pela Internet, ou porque estão apreensivos em comprar algum produto sem tocá-lo, senti-lo ou ter dificuldades para devolvê-lo, caso não corresponda às suas expectativas. Tendo colocado isto, contudo, temos que afirmar que os consumidores estão comprando produtos pela Internet. Isto deve estar acontecendo, porque a percepção de risco associada com este tipo de compra está sendo contrabalançada pela sua conveniência. Esta dissertação tenta determinar porque alguns consumidores compram pela Internet e outros não. / [en] The world was come across with an electronic change that affected the form as the people if they communicate and that the value chain transformed all, since the producers and salesmen until the consumers. The InterNet revolutionized the marketing, that is defined as the exchanges between the individuals and the firms. To buy for the InterNet is if becoming one it forms well accepted to buy some types of products and services, being included products of computer, cars, trips,investments, clothes, flowers, books, music and property. Many factors are helping the development of the market in the InterNet, some are related the technological advances, others to the form as the corporative world changed its perceptions and some related to the change of the style of life of the consumers. The development of softwares of navigation and better systems of search is becoming the visits the InterNet in better and more exciting experiences. The increase of the amount and quality of available information and the presence of corporations and marks known in the InterNet also are generating more interest on the part of the consumers. In 1995, purchases online were a newness and expected that billions in year 2000 arrived the USS7 and expect that trillions in 2003 arrive the USS3.2 (Forrester Research, 1998). It has an increasing number of company that they can be had access by the InterNet and that, consequentemente, come the consumers with a convenient form and cheap to become a member of the community of the InterNet However, the majority of these store is losing money. Why this pparently contrary phenomenon to the intuition is occurring? The explanation can be in the risks associates to the purchases for the InterNet. These risks can appear, because the consumers are worried about the security of the transmission of the number of its credit card for the InterNet or, because they are apreensivos in buying some product without touching it, sentiz it or To have difficulties to return it, in case that it does not correspond to its expectations. Having placed this, however, we have that to affirm that the consumers are buying products for the InterNet. This must be happening, because the perception of risk associated with this type of purchase is being counterbalanced for its convenience. This dissertação tries to determine because some consumers buy for the InterNet and others not.

The aim of this thesis is to provide academic support to the oldest discipline of Mechanical Engineering, namely "Machine Design". The rapid pace of technological development drives every individual, especially students. The industrial revolution in the first half of the 19th century contributed greatly to the advancement of Mechanical Engineering. The theories and experimental data from that time, some developed almost a hundred years ago are still in use in the original form while others have evolved to keep up with the times. This thesis attempts to bring some of that classical machine design theory into a modern user-friendly form that is portable across the Internet. Here the user will be presented with an interactive menu of topics of Machine Design where each is split sub-categorically as Theory and Application. According to the choice made, short excerpts of theory are presented on the chosen matter. The theory will include but not be limited to the important relationships relevant to the design of the particular machine element. After the review of the Theory, the user will be able to navigate to the application where the relationships from the theory will be awaiting user input in the form of solvers. Since the primary emphasis of the thesis is about cultivating knowledge of the underlying theory, the applications will not be self-correcting or self-assuming. The user will need to understand the relationships sufficiently well prior to using the applications to solve homework or design assignments. The created Toolbox is available to all registered users through a login access. The user can then choose to review theory or directly access the applications of the described theory. The thesis successfully demonstrates the use of the Internet as the media for education. / Master of Science

När informationsmängden överskrider den mänskliga kognitiva förmågan att hantera information leder detta till information overload. Tidigare studier har visat att information overload har en negativ påverkan på förmågan att hitta det bästa alternativet. Även viljan att köpa en produkt har visats bli negativt påverkad av för många alternativ. Denna fältstudie utfördes i en online-miljö på en jämförelsesida för snabblån och undersökte om andelen besökare som klickade sig vidare till ett alternativ, det som i studien benämns som konverteringsgrad, kunde påverkas genom att antalet synliga alternativ manipulerades. Tre versioner av samma sida jämfördes med varandra. En version hade den fulla listan med 26 alternativ, en annan version visade endast fem alternativ och en tredje visade fem alternativ med en möjlighet för besökaren att genom en knapptryckning visa alla. I motsats till tidigare forskning uppvisade experimentet en ökad konverteringsgrad med fler alternativ. När besökare använde kringliggande funktionalitet, såsom filtrerings- funktioner eller knappen för att visa alla alternativ ökade konverteringsgraden. Det spelade ingen roll om besökare ökade informationsmängden genom att expandera listan eller om de minskade informationsmängden genom filtrering, båda dessa grupper visade en högre konverteringsgrad.

No description available.

International Telemetering Conference Proceedings / October 20-23, 2003 / Riviera Hotel and Convention Center, Las Vegas, Nevada / Prototyping an Internet Protocol (IP) compliant architecture will demonstrate a realistic basis for satellite communication design. The prototype IP architecture should prove seamless and secure communications between the satellites and ground stations. Using commercial off the shelf (COTS) equipment, design and development of satellite communications becomes easier and less expensive than developing specialized equipment. IP space applications will improve communications while minimizing development costs.

No description available.

Individualiseringen som det postmoderna samhället resulterat i, har försatt individer i en otrygghet där dessa tvingats anamma strategier för att hantera det ökade ansvar som individualiseringen inneburit. Dessa strategier ämnar att ge mening genom att vara verktyg i människors identitetsskapande som därigenom minskar otryggheten. Strategierna förekommer i olika kulturer som föreskriver meningsskapande förhållningssätt. Medlemskapet av gemenskaper är individens egna aktiva val. Identitetsskapandets kärna sker i samvaron med andra individer. Denna samvaro har för många unga förflyttats till Internet där nya former av identitetsskapande möjliggörs. Dessa är lika verkliga som den fysiska världens identitetskonstruktioner. Unga personer söker sig till Internet för att finna strategier till att lindra otryggheten som det postmoderna samhället och dess utseendekultur skapat. Syftet med denna uppsats var att undersöka om den internetbaserade subkulturen kring ätstörningar var en form av ungdomars och unga vuxnas identitetsskapande. Uppsatsen belyser även skolkuratorers roll i arbetet med ätstörningsproblematik inom skolan. Uppsatsen har utgått från en abduktiv ansats där en innehållsanalys av 15 svenska bloggar skrivna av ungdomar och unga vuxna genomförts. 18 skolkuratorer har även responderat i en enkätundersökning med fokus på ämnet utifrån den professionella rollen. De teoretiska perspektiv som uppsatsen utgått från var socialkonstruktivism och Zygmunt Baumans teori om identitetsskapande. Uppsatsens studier visade att subkulturen var ett instrument för identitetsskapande hos svenska ungdomar och unga vuxna. Den pro-anorektiska identiteten sammanföll inte med den fysiska världens normer och gav inga trygga kontakter vilket försatte individerna i en ambivalens där otryggheten åter uppstod. Majoriteten av skolkuratorerna hade kännedom om subkulturen kring ätstörningar, men få uppgav konkreta arbetsrutiner med hanterandet av ätstörningsproblematik i skolan. Detta betraktas som ett viktigt förändringsarbete inom socialt arbete då professionen arbetar med unga individer som riskerar att utveckla ett ohälsosamt beteende med grund i subkulturens ideal.

School districts have implemented filtering and safety policies in response to legislative and social mandates to protect students from the proliferation of objectionable online content. Subject related literature suggests these policies are more restrictive than legal mandates require and are adversely affecting information access and instruction. There is limited understanding of how filtering and safety policies are affecting teaching and learning because no comprehensive studies have investigated the issues and trends surrounding filtering and safety policy implementation. In order to improve existing safety policies, policymakers need research-based data identifying end user access issues that limit technology integration in the kindergarten-12th grade (K-12) educational setting. This study sought to examine Internet filtering and safety policy implementation issues in South Carolina's K-12 public schools to determine their influence on information access and instruction. A mixed methods research design, which includes both quantitative and qualitative approaches, was used to investigate the research problem. Quantitative data were collected from information technology (IT) administrators who were surveyed regarding filtering and safety policy implementation, and school library media specialists (SLMS) were surveyed concerning the issues they encounter while facilitating information access in a filtered environment. Qualitative data were collected through interviews with a subset of the SLMS population, thereby providing further insight about Internet access issues and their influence on teaching and learning. School districts' Acceptable Use Policies (AUPs) were analyzed to determine how they addressed recent legislative mandates to educate minors about specific Web 2.0 safety issues. The research results support the conclusions of previous anecdotal studies which show that K-12 Internet access policies are overly restrictive, resulting in inhibited access to online educational resources. The major implication of this study is that existing Internet access policies need to be fine-tuned in order to permit greater access to educational content. The study recommends Internet safety practices that will empower teachers and students to access the Internet's vast educational resources safely and securely while realizing the Internet's potential to enrich teaching and learning.

published_or_final_version / Business Administration / Master / Master of Business Administration

published_or_final_version / abstract / Journalism and Media Studies Centre / Master / Master of Philosophy