Nuestro emprendimiento presenta un estudio que examine la manera en que los adultos mayores integran las tecnologías de comunicación móvil a sus prácticas cotidianas. A partir del análisis de entrevistas y conversaciones situacionales, aplicadas a adultos mayores, hemos detectados factores que determinan el uso de estas tecnologías entre los participantes y llegamos a definir lo siguiente:  La principal ventaja es contar con comunicación y acceso a la información en todo momento y lugar. Los adultos mayores sobre los 60 años, han incorporado estas tecnologías de comunicación móvil tardíamente en sus vidas. Después de haber crecido en una sociedad marcada por la lecto-escritura, este grupo etario ha debido adaptarse a un entorno mediático-tecnológico complejo, convergente, en red y móvil. Además, las dificultades surgidas a partir del deterioro físico y cognitivo propio de la edad, como de motricidad fina y de memoria, se acentúan por la inexistencia de dispositivos y aplicaciones móviles diseñados para responder a las características particulares de este grupo. Lograr este objetivo es importante para el equipo ya que somos conscientes de que en el Perú actualmente la tasa de adultos mayores alcanza el 10.1% de la población peruana, es decir unas 3’250,000 personas, Por otro lado, el equipo también constató, mediante entrevistas a profundidad, que a las personas mayores no le es fácil manejar con destreza el Smartphone por inseguridad y miedos en la falta de instrucción apropiada, vinculada a la tecnología. / Our entrepreneurship presents a study that examines how older adults integrate mobile communication technologies into their daily practices. From the analysis of interviews and situational conversations, applied to older adults, we have detected factors that determine the use of these technologies among the participants and we come to define the following: • The main advantage is having communication and access to information at any time and place. Older adults over 60 have incorporated these mobile communication technologies later in their lives. After growing up in a society marked by reading and writing, this age group has had to adapt to a complex environment of media technology, convergent, network and mobile. In addition, the difficulties derived from the physical and cognitive deterioration of age, such as fine motor skills and memory, are accentuated by the lack of mobile devices and applications designed to respond to the particular characteristics of this group. The achievement of this objective is important for the team, since we are aware that in Peru the rate of older adults now reaches 10.1% of the Peruvian population, that is, some 3,250,000 people. On the other hand, the team also verified, through in-depth interviews, that it is not easy for older people to manage their smartphone with skills due to insecurity and fears due to lack of adequate instruction related to technology. / Trabajo de investigación

Orientador: Ana Silvia Lopes Davi Médola / Banca: José Carlos Marques / Banca: Conrado Moreira Mendes / Resumo: Esta pesquisa realizou uma investigação acerca da visualidade de videoclipes produzidos em aspecto vertical, com foco nas estratégias enunciativas destes textos audiovisuais. Objetivando identificar a produção de sentido, bem como as relações de comunicação possibilitadas pelos smartphones, foram analisados os quatro videoclipes verticais mais populares no YouTube, no primeiro semestre de 2018, a partir do aporte teórico-metodológico da semiótica discursiva de linha francesa. A figura do corpo humano mantém-se como o ponto central da representação nesses vídeos, reafirmando o discurso de valorização do indivíduo no universo da produção de videoclipes. A partir do corpus analisado, observou-se que a construção visual desses clipes pode referenciar tanto uma estética relacionada à pratica da selfie, valorizando uma lógica narcísica e de celebridade, como também uma estética e montagem características do videoclipe tradicional, especular e fragmentário, voltado especificamente para a fruição nos smartphones / Abstract: This research carried out an investigation about the visuality of music videos produced in the vertical aspect, focusing on the enunciative strategies of these audiovisual texts. Aiming to identify the production of meaning, as well as the communication relations made possible by smartphones, the four most popular vertical music videos on YouTube, in the first half of 2018, were analyzed from the theoretical and methodological approach of French discursive semiotics. The figure of the human body remains the focus of representation in these videos, reaffirming the discourse of valuing the individual while producing music videos. From the corpus analyzed, it was perceived that the visual construction of these clips can refer to an aesthetic related to the practice of selfie, valuing a narcissistic and celebrity logic, as well as an aesthetic and editing characteristic of traditional, specular and fragmentary music videos, specifically for fruition on smartphones / Mestre

Submitted by PPG Educa??o em Ci?ncias e Matem?tica (educem-pg@pucrs.br) on 2018-05-04T14:20:34Z No. of bitstreams: 1 Vers?oFinal-Luciano-Racts-homologada.pdf: 1816012 bytes, checksum: 34e6f7fcf05f55fa7c7f8ed0afdad173 (MD5) / Approved for entry into archive by Sheila Dias (sheila.dias@pucrs.br) on 2018-05-15T19:10:40Z (GMT) No. of bitstreams: 1 Vers?oFinal-Luciano-Racts-homologada.pdf: 1816012 bytes, checksum: 34e6f7fcf05f55fa7c7f8ed0afdad173 (MD5) / Made available in DSpace on 2018-05-15T20:24:23Z (GMT). No. of bitstreams: 1 Vers?oFinal-Luciano-Racts-homologada.pdf: 1816012 bytes, checksum: 34e6f7fcf05f55fa7c7f8ed0afdad173 (MD5) Previous issue date: 2018-03-28 / The utilization of DT (Digital Technologies) in educational institutions is no longer an alternative, becoming a necessity, given the context of cyberculture in which we are inserted. However, the context of schools is still lacking in the provision of devices and artifacts to carry out activities involving the use of technologies. Therefore, an alternative is to use devices owned by students, such as smartphones and tablets. This research sought to investigate the contribution of the use of an app, available for smartphones and tablets, in studies in the discipline of Fundamentals of Physics of a public university in the discipline of Fundamentals of Physics of a public university in the State of Rio Grande do Sul. The research had a qualitative character, of case-study type and the methodology of analysis used was the Discursive Textual Analysis ? ATD. The results showed that the use of devices, such as smartphones and tablets, can bring the practice closer to theory, helping to build students knowledge. These resources can help the teach work, but there is a need for pedagogical planning to define its use. The teacher nedds to consider, more and more, the integration of digital technologies with his pedagogical proposal. The results found in this research motivate to give segment the use of smartphones and tablets and, at the same time, to recommend the need to offer elements for the qualification of teachers, in order to help potentialize the use of technologies in teaching pratices. / A utiliza??o das TD (Tecnologias Digitais) nas institui??es de ensino deixou de ser uma alternativa para se tornar uma necessidade, visto o contexto da cibercultura no qual estamos inseridos. No entanto, o contexto das escolas ainda est? carente no que tange ? oferta de dispositivos e artefatos para realiza??o de atividades envolvendo o uso de tecnologias. Assim sendo, uma alternativa ? utilizar os dispositivos pertencentes aos alunos, como, por exemplo, smartphones e tablets. Esta pesquisa buscou investigar a contribui??o do uso de um aplicativo, dispon?vel para smartphones e tablets, em estudos na disciplina de Fundamentos de F?sica de uma universidade p?blica no Estado do Rio Grande do Sul. A pesquisa teve car?ter qualitativo, do tipo estudo de caso e a metodologia de an?lise utilizada foi a An?lise Textual Discursiva ? ATD. Os resultados apontaram que a utiliza??o de dispositivos, como os smartphones e tablets, podem aproximar a pr?tica ? teoria, colaborando para a constru??o do conhecimento por parte dos estudantes. Estes recursos podem auxiliar o trabalho docente por?m h? a necessidade de um planejamento pedag?gico para definir a sua utiliza??o. O professor precisa considerar, cada vez mais, a integra??o das tecnologias digitais ? sua proposta pedag?gica. Os resultados encontrados nesta investiga??o motivam a dar segmento ? utiliza??o dos smartphones e tablets e, ao mesmo tempo, recomendam a necessidade de ofertar elementos para a qualifica??o dos professores, a fim de auxiliar a potencializar o uso das tecnologias nas pr?ticas de ensino.

Den här uppsatsen har som syfte att undersöka vad det betyder för gymnasie-ungdomar att ha mobiltelefoner, hur telefonen påverkar premisserna för dem att skapa sin identitet och orientera sig i sin vardag, hur de förhåller sig till privatliv och nätet samt vilka gemenskaper som blir tillgängliga via mobiltelefonen. Materialet består av en observation, sju kvalitativa intervjuer och fyra självreflekterande dagböcker som jag analyserat med hjälp av begreppen identitet och performativitet. I uppsatsen analyseras ungdomars upplevelse kring sitt privatliv på nätet och hur de lägger upp en selektiv bild av sig själva. Vidare analyseras hur ungdomar skapar strategier för att hålla sitt liv på internet dolt för vuxna i deras närhet och andra personer de inte vill ska ha tillgång till materialet de lägger upp. Här diskuterar jag också den dubbla stressen som ungdomar känner av att vara konstant nåbara men också rädda för att missa något. Uppsatsen belyser också gemenskaper på nätet och hur mobiltelefonen är en förutsättning för att unga ska kunna umgås med varandra. Här beskrivs även telefonen som ett socialt skydd, som kan hjälpa att undvika jobbiga situationer. Slutligen diskuteras hur ungdomarna skapar distans till vuxna genom att aktivt välja andra plattformar att röra sig på.

Orientador: Maria Cristina Gobbi / Banca: Vicente Gosciola / Banca: Osvando José de Morais / Resumo: A cultura móvel é uma característica da sociedade contemporânea (AUGÉ, 2008), e isso contamina cada vez mais as atividades culturais, artísticas e midiáticas. Com essas influências, o projeto Playing for Change realiza, desde 2002, produções musicais colaborativas a partir de tecnologias audiovisuais móveis. Essa dissertação apresenta, a partir da interdisciplinaridade entre música, tecnologia móveis e audiovisual, um estudo de cinco clipes produzidos pelo projeto Playing for Change, o que possibilidade a produção, de caráter experimental, de um videoclipe experimentando o smartphone como agente contribuinte da produção de conteúdo autoral. E por fim, o trabalho contribui com os métodos para futuras produções seguindo os mesmos moldes propostos pelo projeto inicial analisado, o Playing for Change. / Abstract: Mobile culture is a feature of contemporary society (AUGÉ, 2008), and this increasingly contaminates cultural, artistic and media activities. With these influences, since 2002, the Playing for Change project has been producing collaborative musical productions using mobile audiovisual technologies. This dissertation presents, from the interdisciplinarity between music, mobile and audiovisual technology, a study of five clips produced by the Playing for Change project, which allows the experimental production of a video clip experimenting the smartphone as a contributing agent of the production of content. And finally, the work contributes to the methods for future productions following the same molds proposed by the initial project analyzed, Playing for Change. / Mestre

Submitted by PPG Administra??o e Neg?cios (ppgad@pucrs.br) on 2018-11-26T17:53:13Z No. of bitstreams: 1 LAURA_CHIATTONE_BOLLICK_DIS.pdf: 1401223 bytes, checksum: d76832a059e7ae03989dfa9243a9e7d7 (MD5) / Approved for entry into archive by Caroline Xavier (caroline.xavier@pucrs.br) on 2018-11-27T17:03:04Z (GMT) No. of bitstreams: 1 LAURA_CHIATTONE_BOLLICK_DIS.pdf: 1401223 bytes, checksum: d76832a059e7ae03989dfa9243a9e7d7 (MD5) / Made available in DSpace on 2018-11-27T17:07:34Z (GMT). No. of bitstreams: 1 LAURA_CHIATTONE_BOLLICK_DIS.pdf: 1401223 bytes, checksum: d76832a059e7ae03989dfa9243a9e7d7 (MD5) Previous issue date: 2018-09-11 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / Mobile devices are of great importance in the construction of everyday life in contemporary society. This is the subject of this study to investigate the meanings of smartphone consumption, the trade-offs caused by the purchase, how the device is used and how it produces meanings. In addition, it seeks to verify the social implications of using the device. The qualitative research was done by means of 23 interviews and 2 focus groups with low income youths from R $ 768 to R $ 2,705. In those circumstances, it was possible to calculate the types of cells that can be used as important components for their sociability, in a moment that the relations extrapolate face to face and gain a digital environment. As a result, I realized that smartphones are among the objects of desire of the low-income youth and that the meanings of the mobile device for the young people interviewed are a social inclusion through connectivity and interactivity, dependence of the device in their day to day "Self Extended" through the humanization of the device. It was also noted that the smartphone is considered one of the best fashion, symbol status and fast source of access. In the view of young people, the dissemination of the use of telephones in disempowering society should not be considered as interpersonal relations. / Os dispositivos m?veis possuem uma grande import?ncia na constru??o do cotidiano da sociedade contempor?nea. Considerando esse contexto este estudo objetiva investigar os significados de consumo de smartphones dado pelos jovens de baixa renda atrav?s do entendimento de como ? dada forma de aquisi??o, os trade-offs ocasionados pela compra, como ? dada a forma de uso do aparelho e como produz significados. Al?m disso, busca-se verificar as implica??es sociais do uso do aparelho. A pesquisa de cunho qualitativa foi feita por meio de 23 entrevistas e 2 grupos focais com jovens de baixa renda em que a renda familiar mensal est? entre R$ 768 a R$ 2.705 reais. Nessas circunst?ncias, foi poss?vel averiguar que o telefone celular ? compreendido pelos jovens como objetos significativos para a sua sociabilidade, diante de um momento que as rela??es extrapolam a face a face e ganham ambiente digital. Como resultado, percebeu-se que o smartphone est? entre os objetos de desejo dos jovens de baixa renda e que os significados do dispositivo m?vel para os jovens entrevistados tangem a inclus?o social atrav?s da conectividade e interatividade, depend?ncia do aparelho em seu dia a dia e ?extens?o do eu? atrav?s da humaniza??o do dispositivo. Observou-se tamb?m que o smartphone ? considerado um acess?rio de moda, s?mbolo de status e fonte r?pida de acesso. Na vis?o dos jovens a dissemina??o do uso dos telefones na sociedade causa altera??o de comportamento da sociedade no que se refere as rela??es interpessoais.

Tese de mestrado integrado. Engenharia Electrotécnica e de Computadores (Major Telecomunicações). Faculdade de Engenharia. Universidade do Porto. 2010

<p>The most common method for identifying merchandise in the commerce is by barcodes. Symbian OS is an advanced operating system aimed at cell phones and the most commonly used in smart phones. Opportunities to a full range of new services are given through barcode recognition in a Symbian OS based device. Therefore the purpose of this degree project was to create an application which would contribute to a future solution aimed at shopping where the cell phone constitutes a reader of itemsʼ identification numbers. Available barcode decoders have been evaluated and three were chosen for testing. The decoder that fared best was ZXing. It was subsequently incorporated into a Symbian OS-based mobile phone. The decoder was written in the Java language but sufficient Java APIs for controlling the camera's autofocus were missing, something that was necessary to decode the barcode. On the other hand the APIs were offered in C++. Therefore, the solution was split into two applications, one server application written in Java and responsible for the decoding and one client application written in C++ containing the GUI, camera controlling facilities and connections to two price comparison services. A procedure for communication between applications and an interface for various lookup services were defined. Finally, the information security was evaluated and the most relevant threat would be a third party that collects information about user behavior patterns for extortion purposes. It was concluded that the application that was created had the ability to scan barcodes, it is possible to extend and thereby fulfill the purpose.</p>

Background: In mobile phone industry, Smartphones are gaining popularity as an effective communication tool, providing users with “Smart” functionalities of both cell-phone and Personal Digital Assistant (PDA). Experts in mobile industry expect that smartphones are going to be dominant in mobile phone market. However, Smartphone industry is facing a different reality, with its declining sales and less market share, forcing research companies (Gartner, Canalys, etc.) to change their expectations. This situation leads us to another important and often ignored perspective of innovation challenges, i.e. consumers' resistance; as consumers' adoption and purchase decision makes a significant difference in the success of innovative products. Problem: Innovation has been called as a key factor for companies to survive and grow in the long run, especially in the dynamic &amp; complex markets and uncertain economic circumstances. Despite the successful outcome of innovations, inhibition or delay in the diffusion of innovation may translate this success into market failure, where resistance has been called as one of the main reasons for inhibiting or delaying the innovation diffusion. Consumers adoption of innovation depend upon several factors: the most important of which are specified as consumers’ characteristics (psychological characteristics of consumers; how they view the innovativeness with respect to that particular product), and the innovation characteristics (outcome and effects of innovation). Past research on innovation &amp; consumers characteristics represents good relationship among the innovation/consumers factors and the adoption/implementation of that innovation by consumers. Purpose: The purpose of this study is to identify and analyze the relationship between consumers' resistance and different factors from innovation and consumers' characteristics. Thereafter, important factors are identified that mainly affect/determine consumers' resistance to smartphones. Moreover, the inter-relationship (correlation) among the selected factors is found out, to know the affects of each factor on other factors. Method: Following abductive approach, confirmatory factor analysis has been done on pre-test questionnaires to test, improve, and verify the constructs (variables/questions) for measuring the hypothesized factors. A theoretical model has been proposed from the hypotheses; and Structural Equation Modeling has been applied, where results are estimated through Partial Least Square and AMOS approaches, using a sample of 330 respondents from Sweden. SmartPLS software has been used to estimate results, thereafter, AMOS has been used to check and verify the results. Almost same results have been derived from both approaches, while results from PLS are found as more satisfactory. Conclusions: Five out of eight hypotheses have been supported by our empirical data, where H1 i.e. relative advantage, H3 i.e. complexity, and H4 i.e. perceived risk, are from innovation characteristics, while H6 i.e. motivation, and H7 i.e. „favorable attitude towards existing products‟ are from consumers' characteristics. Motivation, Complexity, Relative Advantage, and Perceived Risk are found as important factors (as per their order) that affect/determine consumers' resistance to smartphones. Relative Advantage &amp; Motivation are found as positively correlated, and Perceived Risk &amp; Complexity are found as positively correlated. Negative correlation has been found between Perceived Risk and relative advantage. Similarly, negative correlation has been found between motivation and complexity. The proposed model of consumers resistance to smartphones shows an acceptable goodness of fit, where 65% (R-square value) of variation in consumers resistance is caused/explained by the hypothesized factors. / The Presentation (Defense) has been attended by Cecilia Bjursel instead of our supervisor Desalegn Abraha.

The Web is increasingly being accessed by portable, multi-touch wireless devices. Despite the popularity of platform-specific (native) mobile apps, a recent study of smartphone usage shows that more people (81%) browse the Web than use native apps (68%) on their phone. Moreover, many popular native apps such as BBC depend on browser-like components (e.g., Webview) for their functionality. The popularity and prevalence of web browsers on modern mobile phones warrants characterizing existing and emerging threats to mobile web browsing, and building solutions for the same. Although a range of studies have focused on the security of native apps on mobile devices, efforts in characterizing the security of web transactions originating at mobile browsers are limited. This dissertation presents three main contributions: First, we show that porting browsers to mobile platforms leads to new vulnerabilities previously not observed in desktop browsers. The solutions to these vulnerabilities require careful balancing between usability and security and might not always be equivalent to those in desktop browsers. Second, we empirically demonstrate that the combination of reduced screen space and an independent selection of security indicators not only make it difficult for experts to determine the security standing of mobile browsers, but actually make mobile browsing more dangerous for average users as they provide a false sense of security. Finally, we experimentally demonstrate the need for mobile specific techniques to detect malicious webpages. We then design and implement kAYO, the first mobile specific static tool to detect malicious webpages in real-time.