Orientador: Leonardo Lemos de Souza / Banca: Wiliam Siqueira Peres / Banca: Larissa Maués Pelúcio Silva / Resumo: Esta pesquisa busca investigar os aplicativos voltados para o estabelecimento de encontros e relações afetivos e sexuais entre o público gay, o Grindr e o Hornet, popularmente disseminados após a invenção dos smartphones nos quais é possível localizá-los geograficamente. O objetivo desta investigação foi o de traçar pistas acerca de como o estabelecimento de relações afetivas e sexuais entre homens tem se dado no contemporâneo em meio às mídias digitais. Por meio do método cartográfico, inspirado em Deleuze e Guattari, nos deparamos com algumas questões, tais como: desafios éticos e metodológicos em se fazer pesquisa da e na internet; desafios conceituais sobre as recentes mídias viabilizadas pelas novas tecnologias da informação; e sobre uma "arquitetura das escolhas" por meio da qual foi possível listar o quanto algumas características hegemônicas culturais (de gênero, de raça, de sexualidade, de capital cultural e econômico, idade, entre outras) atravessam as escolhas individuais dos usuários tornando-se determinantes nas regulações dos modos como, homens que buscam contatos sexuais e afetivos com outros homens por meio dos aplicativos, estabelecem seus contatos de modo contribuinte com o estabelecimento de um mercado do sexo e do afeto. Este mercado é caracterizado por elementos tradicionalmente neoliberais como: lei da oferta e procura, racionalização das escolhas, acentuação do individualismo por meio da competição e uma comoditização de si a fim de disputar encontros sexuais e/ou relacionamentos afetivos / Abstract: This research seeks to investigate the applications aimed at establishing affective and sexual dates and relationships between gay public, the Grindr and Hornet, popularly disseminated after the invention of smartphones in which it is possible to locate them geographically. The purpose of this investigation was to trace clues about how the affective and sexual relationships between men have taken place in the contemporary in the midst of digital medias. From a cartographic method, inspired on Deleuze and Guattari, was possible to think about some questions, such as: ethical and methodological challenges in doing research about and on the internet; conceptual challenges about the recent medias made viable by the new information technologies; and about a "architecture of romantic choices" from which was possible to list some hegemonic culture elements (gender, race, sexuality, culture and economic capital, age, among others) that crosses the individual choices of the users, getting itself deterministic on the way how, men that search sex and affective contacts with another men through the applications, establish their relationships in a contributing way with the establishment of sexual and affective market. This market is characterized by neoliberal traditionally elements, such as: law of supply and demand, an increase of rationalism and the individualism through of competition permitted by a commoditization of the self to compete for sexual dates and affective relationships / Mestre

This thesis looks at the problem of discovering nearby friends and nearby places of interest in a privacy-preserving way using location-based services on mobile devices (e.g., smartphones). First, we propose a privacy-preserving protocol for the discovery of nearby friends. In this scenario, Alice wants to verify whether any of her friends are close to her or not. This should be done without disclosing any information about Alice to her friends and also any of the other parties’ information to Alice. We also demonstrate that our approach can be efficiently applied to other similar problems; in particular, we use it to provide a solution to the socialist millionaires' problem. Second, we propose a privacy-preserving protocol for discovering nearby places of interest. In this scenario, the proposed protocol allows Alice to learn whether there is any place that she is looking for near her. However, the location-based service (LBS) that tries to help Alice to find nearby places does not learn Alice’s location. Alice can send a request to the LBS database to retrieve nearby places of interest (POIs) without the database learning what Alice fetched by using private information retrieval (PIR). Our approach reduces the client side computational overhead by applying the grid square system and the POI types ideas to block-based PIR schemes to make it suitable for LBS smartphone applications. We also show our second approach is flexible and can support all types of block-based PIR schemes. As an item of independent interest, we also propose the idea of adding a machine learning algorithm to our nearby friends’ Android application to estimate the validity of a user's claimed location to prevent users from sending a fake location to the LBS application.

Orientador: Vania Cristina Pires Nogueira Valente / Banca: Maria Cristina Gobbi / Banca: Maria Ataide Malcher / Resumo: Este trabalho apresenta a produção de um roteiro interativo e a produção de um produto audiovisual voltado para a disciplina de artes do curso de educação a distância em pedagogia do Núcleo de educação a Distância da Unesp - NeAD, ligado a Universidade Virtual do Estado de São Paulo - UNIVESP. O roteiro e a produção do conteúdo do produto são baseados nas pesquisas sobre o mercado de dispositivos móveis e portáteis para a Televisão Digital Interativa e as produções de conteúdos audiovisuais voltadas para esses dispositivos. O projeto de conteúdos voltados para a disciplina de artes do curso de EaD do NeAD/UNIVESP promoveu a pesquisa sobre educação a distância no Brasil e os recursos que são utilizados nos Ambientes Virtuais de Aprendizagem. Após essas análises foi realizada a produção, edição, finalização e inserção das aplicações interativas. Como resultado, foi produzido o aplicativo interativo "Reflexões sobre a Arte", disponibilizado aos alunos do curso nas versões web e também para dispositivos móveis, e a aprovação do aplicativo na "Google Play", a loja de aplicativos para smartphones e tablets com o sistema operacional Android. O site permite ao usuário baixar aplicativos pagos ou gratuitos para serem utilizados em dispositivos móveis / Abstract: This academic work performs the production of an interactive script and the production of an audiovisual product toward the discipline of arts from education course distance in pedagogy in the distance Center of education at UNESP - Nead, linked to the Virtual University of Sao Paulo - UNIVESP. The script and production are based on the market analysis for mobile and portable for the Digital Interact Television and devices and production of audiovisual content for these devides. The project of contents for the arts discipline of the course EAD/UNIVESP fomented the research about distance education in Brazil and the resources that are used in Virtual Learning Environments. Pursuant this analysis, it were performed production, editing, finishing, and insertionof interactive applications. The result was the production of an interactive application "Reflections on Art", available to students in versions for web and mobile devices, and the approval of the application "Google Play", the app store for smarphones and tablets with the system Android. The site allows users to download free or paid applications for use on mobile devices / Mestre

This study is a focused effort on elucidating the performance aspects of modern, handheld wireless devices and associated mobile network services. Specifically addressed thereof are: (i) Assessing the performance details on certain hardware sections of smart handheld devices and (ii) determining the performance profile of market penetration considerations vis-à-vis provisioning mobile networks. To meet the scope of this research, the projected efforts are exercised in compiling relevant literature and deciding the said hardware and technoeconomic performance issues. Hence, written in two parts, Part A is devoted to hardware performance details of smart, handheld devices relevant to (a) delay issues in PCB layouts; (b) crosstalk problems at the baseband level (audio/multimedia) using EMI concepts and (c) ascertaining non-catastrophic EMP/EMI effects at the RF-sections so as to implement protection strategies via compensating networks. Part B is concerned with the technoeconomics of wireless networks in supporting mobile (handheld devices). Correspondingly, two market related considerations versus service performance details are considered. The first one refers to deducing a relative performance index that includes technology (mobile speed) details plus economics profiles of the users in the service area. The second task refers to elucidating a performance index of such services in terms of hedonic pricing heuristics. The theoretical aspects of the test studies as above are supplemented with experimental and/or simulation details as appropriate. Hence, the efficacy of performance details are discussed in real-world applications. Lastly, possible research items for future studies are identified as open-questions. / Includes bibliography. / Dissertation (Ph.D.)--Florida Atlantic University, 2015. / FAU Electronic Theses and Dissertations Collection

Orientador: Priscila Missaki Nakamura / Coorientador: Larissa Cerignoni Benites / Banca: Emerson Sebastião / Banca: Roberto Tadeu Iaochite / Resumo: A prevalência de adolescentes brasileiros expostos ao tempo sentado, como utilizar smartphones mais de 5 horas e 51 minutos por dia, é de 65%. Assim, as intervenções para reduzir o comportamento sedentário (CS) em jovens são importantes, mas pouco se sabe sobre como reduzir o CS dos adolescentes por meio do uso de aplicativos de smartphones, o que é interessante, uma vez que essa ferramenta é usada por 87,4% dos jovens brasileiros. Mas antes de criar um aplicativo com esse propósito, é necessário verificar as variáveis associadas ao CS de determinada região e explorar as características que o aplicativo deverá possuir para futuramente ser criado. Com base nisso, o objetivo do estudo foi verificar os fatores sociodemográficos associados ao CS e explorar as características que aplicativos para smartphones devem conter para redução do CS no tempo livre a partir da visão dos adolescentes. Participaram do estudo 482 adolescentes (14,43±2,08 anos) de 3 escolas públicas e 2 particulares do ensino fundamental (anos finais) e ensino médio da cidade de Rio Claro - SP. Para a coleta de dados, os participantes responderam a um questionário de identificação, anamnese clínica e questionário para caracterizar o nível socioeconômico; o Questionário de Comportamento Sedentário, com questões adicionais relacionadas ao CS e o uso de smartphones e videogames; o Questionário de Atividade Física Habitual para Adolescentes e mensuração do peso e estatura para o cálculo de Índice de Massa Corporal (... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: The prevalence of Brazilian adolescents exposed to sitting time, such as using smartphones for more than 5 hours and 51 minutes per day, is 65%. Thus, interventions to reduce sedentary behavior (SB) in adolescents are important, but little is known about how to reduce adolescents' SB using smartphone applications, which is interesting, since this tool is used by 87.4% of the Brazilian adolescents. However, before creating an application for this purpose, it is necessary to check the variables associated with the SB of a given region and to explore the characteristics that the application must have to be created in the future. Based on this, the aim of this study was to verify the sociodemographic factors associated with SB and explore the characteristics that applications for smartphones should contain to reduce SB in leisure time from the adolescents' view. A total of 482 adolescents (14.43 ± 2.08 years) from 3 public schools and 2 private elementary schools (final years) and high school in the city of Rio Claro - SP participated to the study. For the data collection, the participants answered an identification questionnaire, clinical anamnesis and a questionnaire to characterize the socioeconomic level; the Sedentary Behavior Questionnaire, with additional questions related to SB and the use of smartphones and video games; the Normal Physical Activity Questionnaire for Adolescents and weight and height measurement for the calculation of Body Mass Index (BMI) (kg / m²). The ... (Complete abstract click electronic access below) / Mestre

Submitted by William Justo Figueiro (williamjf) on 2015-07-03T12:34:10Z No. of bitstreams: 1 27.pdf: 2627353 bytes, checksum: 42054d0aa2471c361a111b84abbfd000 (MD5) / Made available in DSpace on 2015-07-03T12:34:10Z (GMT). No. of bitstreams: 1 27.pdf: 2627353 bytes, checksum: 42054d0aa2471c361a111b84abbfd000 (MD5) Previous issue date: 2014-09 / Nenhuma / A presença dos smartphones na sociedade contemporânea vem tendo crescentes reflexos nas mais diversas instâncias, mudando a forma como o público se relaciona com as mídias e seus produtos. O jornalismo, que ao longo de sua história passou por inúmeras transformações, também tem sido afetado pelos dispositivos móveis, no que seria a principal ‘revolução’ no campo jornalístico desde que a internet se tornou acessível a um público considerável, no final da década de 1990. Hoje, os aplicativos móveis, softwares desenvolvidos principalmente para usuários de celulares inteligentes e tablets, surgem como o principal meio de manifestação do jornalismo para dispositivos digitais portáteis. Entender como o jornalismo se apresenta na mobilidade, identificando suas principais características e ferramentas interativas que possibilitam e/ou estimulam a participação do público, é o objetivo do presente estudo. Para tanto, irá se usar como referencial teórico a perspectiva das materialidades da comunicação, a partir da obra de Hans Ulrich Gumbrecht. Ao longo do percurso deste estudo, apresentam-se alguns conceitos desenvolvidos pelo teórico alemão, além de um conciso histórico do telefone enquanto mídia e uma breve discussão sobre o lugar da mobilidade na sociedade contemporânea. Para identificar características do jornalismo móvel, foi feita uma análise de aplicativos jornalísticos de veículos brasileiros e estrangeiros, com o intuito de identificar e apresentar características interativas presentes nestes produtos. / The presence of smartphones in contemporary society has great consequences on several instances, changing the way the public relates with media and its products. Journalism, which throughout its history has passed through numerous changes, is been affected by mobile devices, in what would be the main ‘revolution’ on journalism since internet has become accessible to a considerable public, in the end of the 90’s. Right now, mobile applications, softwares developed mainly for smartphones and tablets users, become the main expression of journalism on portable digital devices. To understand how journalism presents itself on mobility, identifying its main characteristics and interactive features, which can stimulate or make the public participation possible, is the objective of such dissertation. To do so, we are using the theoretical perspective of materialities of communication, following the works of Hans Ulrich Gumbrecht. Throughout the study, we present some concepts developed by the german theorist, besides a brief history of the telephone as a media and a short discussion about the place of mobility in contemporary society. To identify mobile journalism characteristics, we analyzed several mobile apps from brazilians and international newspaper, aiming to identify and present interactives features in such products.

Advances in sensor technology and computer science in the last three decades have boosted the importance of system identification and vibration-based structural health monitoring (SHM) in civil infrastructure safety and integrity assessment. On the other hand, practical and financial issues in system instrumentation, maintenance, and operation have remained as fundamental problems obstructing the widespread use of SHM applications. For this reason, to reduce system costs and improve practicality as well as sustainability, researchers have been working on emerging methods such as wireless, distributed, mobile, remote, smart, multisensory, and heterogeneous sensing systems. Smartphones with built-in batteries, processor units, and a variety of sensors, have stood as a promising hardware and software environment that can be used as SHM components. Communication capabilities with the web, enable them to compose a smart and participatory sensor network of outnumbered individuals. Besides, crowdsourcing power offered by citizens, sets a decentralized and self-governing SHM framework which can even be pertained by very limited equipment and labor resources. Yet, citizen engagement in an SHM framework brings numerous challenges as well as opportunities. In a citizen-induced SHM scenario, the system administrators have limited or no control over the sensor instrumentation and the operation schedule, and the acquired data is subjected change depending on the measurement conditions. The citizen-induced errors can stem from spatial, temporal, and directional uncertainties since the sensor configuration relies on smartphone users’ decisions and actions. Moreover, the sensor-structure coupling may be unavailable where the smartphone is carried by the user, and as a consequence, the vibration features measured by smartphones can be modified due to the human biomechanical system. In addition, in contrast with the conventional high fidelity sensors, smartphone sensors are of limited quality and are subjected to high noise levels. This dissertation utilizes multisensory smartphone features to solve citizen-induced uncertainties and develops a smartphone-based SHM methodology which enables a cyber-physical system through mobile crowdsourcing. Using smartphone computational and communicational power, combined with a variety of embedded sensors such as accelerometer, gyroscope, magnetometer and camera, spatiotemporal and biomechanical citizen-induced uncertainties can be eliminated from the crowdsourced smartphone data, and eventually, structural vibrations collected from numerous buildings and bridges can be collected on a single cloud server. Therefore, unlike the conventional platforms designed and implemented for a particular structure, citizen-engaged and smartphone-based SHM can serve as intelligent, scalable, fully autonomous, cost-free, and durable cyber-physical systems drastically changing the forthcoming trends in civil infrastructure monitoring. In this dissertation, iOS is used as the application development platform to produce a smartphone-based SHM prototype, namely Citizen Sensors for SHM. In addition, a web-based software is developed and cloud services are implemented to connect individual smartphones to an administrator base and automate data submission and processing procedure accordingly. Finally, solutions to citizen-induced problems are provided through numerous laboratory and field test applications to prove the feasibility of smartphone-based SHM with real life examples. Through collaborative use of the software, principles and methodologies presented in this dissertation, smartphones can be the core component of futuristic smart, resilient, and sustainable city and infrastructure systems. And this study lays down an innovative and integrated foundation empowering citizens to achieve these goals.

Submitted by Leonardo Lima (leonardoperlim@gmail.com) on 2017-04-05T15:45:21Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) FURTADO, Ires de Oliveira.pdf: 1950414 bytes, checksum: 64ef8c5fefc07b0d9c740635c31ff8ce (MD5) / Approved for entry into archive by Aline Batista (alinehb.ufpel@gmail.com) on 2017-04-25T19:24:32Z (GMT) No. of bitstreams: 2 FURTADO, Ires de Oliveira.pdf: 1950414 bytes, checksum: 64ef8c5fefc07b0d9c740635c31ff8ce (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Approved for entry into archive by Aline Batista (alinehb.ufpel@gmail.com) on 2017-04-25T19:29:14Z (GMT) No. of bitstreams: 2 FURTADO, Ires de Oliveira.pdf: 1950414 bytes, checksum: 64ef8c5fefc07b0d9c740635c31ff8ce (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Made available in DSpace on 2017-04-25T19:29:33Z (GMT). No. of bitstreams: 2 FURTADO, Ires de Oliveira.pdf: 1950414 bytes, checksum: 64ef8c5fefc07b0d9c740635c31ff8ce (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2015-10-07 / Sem bolsa / A presente pesquisa tem como objetivo geral investigar como a paisagem pode ser trabalhada em sala de aula através de fotografias produzidas pelos próprios alunos com as câmeras de seus celulares smartphones. Para isto, primeiramente houve uma revisão bibliográfica referente ao estudo da paisagem no ensino de Geografia, bem como sobre a utilização de Tecnologias Móveis e Sem Fio no processo de ensino-aprendizagem. Também foram aplicados questionários a uma turma de nono ano composta por vinte e quatro alunos com idades entre quatorze e dezessete anos de uma escola estadual de ensino fundamental da rede pública estadual de ensino, localizada na cidade de Pelotas/RS. Através das respostas obtidas nos questionários, foi possível averiguar que todos os alunos da turma possuíam celular com câmera integrada e acesso a internet, tanto por Wi-Fi como por redes móveis, esse fato possibilitou o planejamento de uma atividade que utilizou esses dois recursos disponibilizados em todos os aparelhos. Como o assunto para o trimestre, conforme a grade curricular da disciplina de Geografia, era o continente europeu, os alunos foram convidados a fotografarem elementos da paisagem, na cidade de Pelotas que apresentassem algum tipo de influências europeias, devido aos processos de colonização que aconteceram no município, no passado. Com isso, buscou-se analisar as diversas paisagens retratadas pelos alunos, destacando a importância deste tipo de atividade no processo de ensino-aprendizagem da Geografia em sala de aula, mostrando que os smartphones podem ser uma ferramenta didática importante no processo de construção do conhecimento geográfico. Foi possível perceber que a análise da paisagem da própria cidade em que os alunos vivem, pode contribuir na percepção que os mesmos têm sobre o mundo, bem como na aprendizagem dos conceitos geográficos, que normalmente parecem tão distantes da realidade, mas que estão presentes em quase todas as ações do cotidiano. / This research aims to investigate how the landscape can be worked in the classroom through photographs produced by the students themselves with their mobile smartphone cameras. In order to do that, initially there was a literature review regarding the landscape study in the teaching of Geography, as well as on the use of Mobile and Wireless Technologies in the teaching-learning process. Also, questionnaires were applied to a ninth grade class composed of twenty-four students aged between fourteen and seventeen years old of a public elementary school, located at Pelotas/RS. Through the answers obtained in the questionnaires, it was possible to determine that the students in the class had cell phones with integrated camera and internet access, both through Wi-Fi and mobile networks. This fact enabled the planning of an activity which used these two features available on all devices. Because the subject for the trimester, according to the Geography curricular program, was the European continent, the students were invited to photograph landscape elements in the city of Pelotas that presented some type of European influences, due to the colonization processes that happened in the city, in the past. With that, the several landscapes portrayed by the students were analyzed, highlighting the importance of this kind of activity in the teaching and learning of geography in the classroom, showing that smartphones can be an important teaching tool in the construction process of geographical knowledge. It was possible to see that the analysis of the landscape of the city in which the students live can contribute to the perception they have about the world, as well as learning the geographical concepts that, usually, seem so far from reality, but are present in almost all daily actions

Made available in DSpace on 2016-04-29T14:23:43Z (GMT). No. of bitstreams: 1 Leandro da Conceicao Cardoso.pdf: 10444240 bytes, checksum: c91c9b722796c30dda9a7c7699d3517e (MD5) Previous issue date: 2016-02-19 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / This study shows the relation between the importance of how digital designers practice their theoric knowledgments, nowadays people live technological changes and technologic inovations, mainly with smartphones, that are considered a technological revolution, the strongest impact of last times, after Internet advents and social medias. The interaction acts through of apps interfaces, there is a prevision that until 2016, 300 billions of apps will be developmented having a big research base. The goal of this study is helps Brazilian researches. The main of issues in health researches is people with cardiacs problems. The focus of this study was to show apps that describes characteristics of the people that want to have good health. Yet it is important show that this research has not relation to medical aspect. The methodology of this study establishes an analysis of many theoric thoughts about apps and its application for the designers that development interfaces of apps. The ideas of many authors are presented here and their studies about design and interaction. This study presents, moreover, some aspects that are not considered in a critical analysis for the reason that it was presently a short study that shows only the results and the importance that digital designer has in a academic knowledge to develops interfaces that not follow concepts of theoretic students. The main is to show how an app can be faster and more efficient than if it could not obey the rules, although in a specific objective / Esta dissertação é pautada na importância de como os designers digitais colocam em prática os seus conhecimentos teóricos, em um momento que estamos vivendo em constantes e aceleradas mudanças de inovações tecnológicas, especialmente com os smartphones, que é considerado como a revolução tecnológica de maior impacto nos últimos tempos, após a causada pela internet e pelas redes sociais. Nos smartphones a interação se dá através das interfaces dos aplicativos, que já podem estar instalados ou serem baixados pela internet. Existe uma previsão que até 2016, 300 bilhões de aplicativos serão desenvolvidos, tendo uma grande base de pesquisa. O objetivo deste trabalho é de também colaborar no que os brasileiros consideram que deva ser prioridade, que são os serviços de saúde, onde o mais grave do Brasil são os cardíacos. Assim, o foco foi em abordar os aplicativos que em sua descrição têm características que podem servir para o monitoramento da saúde cardíaca do usuário. É importante salientar que este estudo não tem nenhuma relação do aspecto médico. Esta pesquisa propõe a análise de como foi aplicado pelos designers que desenvolveram as interfaces dos aplicativos aqui apresentados, os conceitos de vários autores relacionados ao design, usabilidade e interação, como também um levantamento de alguns aspectos que não foram considerados através de uma análise crítica que foi curta, o que evidencia o resultado obtido, da relevância do designer digital ter o conhecimento acadêmico para o desenvolvimento de interfaces, não sendo possível imaginar como funcionaria interfaces que não obedecesse os conceitos dos estudiosos, que tornam o tempo de execução de uma tarefa muito mais rápida e eficiente do que se o aplicativo não obedecesse estas regras, salvo que seja um aplicativo experimental com este objetivo específico

Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2017-10-03T19:18:17Z No. of bitstreams: 1 2016 - Jos? Marcelo Velloso de Oliveira.pdf: 4277827 bytes, checksum: 283210b4b641db9ae05f5439a98b2dfc (MD5) / Made available in DSpace on 2017-10-03T19:18:17Z (GMT). No. of bitstreams: 1 2016 - Jos? Marcelo Velloso de Oliveira.pdf: 4277827 bytes, checksum: 283210b4b641db9ae05f5439a98b2dfc (MD5) Previous issue date: 2016-08-03 / There are several factors that hinder the work development of mathematics teachers in basic education. Among them is the inappropriate use of smartphones / tablets for students, among the academic activities. These mobile devices, for their variety of prices are available for everyone, and because of that they are present in almost all parts of the day. Smartphones / tablets today have thousands of applications for many different uses, no matter the operational system they use. On the other hand, in the educational field, these devices are not yet part of the classroom routine productively; on the opposite, are elements of distraction to the students. In an attempt to take advantage of this feature as a pedagogical tool for the teaching of math, taking advantage of the presence of the students equipments in classes, came the proposal to create and use an application called AGA, which runs on the Android operating system, for the use in classes that addressed primary topics of analytic geometry, such as marking points in the Cartesian point and distance between points on the plane. It is important to highlight that among the available operating systems, Android dominates the smartphone / tablet market. The building application for this research was developed through an integrated development environment MIT (Massachusetts Institute of Technology). It is a simple and interactive way to build applications for the Android operating system for mobile devices. The use of the application in mathematics lessons took place in a class of the third year of high school in a state school, located in Serop?dica City. For the assessment of the experiment, they were applied in the research group, tests before and after the activities, addressing the working content and motivation to study mathematics. Such tests allowed the analysis of the impact of the work developed in class and efficiency of the construction and use of the AGA. / Existem diversos fatores que dificultam o desenvolvimento do trabalho dos professores de matem?tica na educa??o b?sica. Dentre eles, est? o uso inapropriado dos smartphones/ tablets por discentes, em meio ?s atividades acad?micas. Estes aparelhos m?veis, por suas variedades de pre?os, est?o dispon?veis para todos os p?blicos, de modo que est?o presentes em quase todos os momentos do dia. Os smartphones/ tablets atuais disp?em de milhares de aplicativos para as mais diversas utiliza??es, independente do sistema operacional que utilizam. Por outro lado, no campo educacional, aparelhos como estes ainda n?o fazem parte da rotina de sala de aula de forma produtiva; ao contr?rio, s?o elementos de distra??o para os discentes. Em uma tentativa de aproveitar esse recurso como ferramenta pedag?gica para o ensino de matem?tica, aproveitando a presen?a dos equipamentos dos alunos nas aulas, surgiu a proposta de cria??o e de uso de um aplicativo, denominado AGA, o qual funciona no sistema operacional Android, para utiliza??o em aulas que abordassem t?picos preliminares de Geometria Anal?tica, tais como marca??o de pontos no plano cartesiano e dist?ncia entre pontos no plano. Vale destacar que, dentre os sistemas operacionais dispon?veis, o Android domina o mercado de smartphones/ tablets. A constru??o do aplicativo para esta pesquisa foi desenvolvida atrav?s de um ambiente de desenvolvimento integrado do MIT (Massachussetts Institute of Tecnology). Trata-se de uma forma simples e interativa de se construir aplicativos para dispositivos m?veis de sistema operacional Android. A utiliza??o do aplicativo em aulas de Matem?tica ocorreu em uma turma de terceiro ano do ensino m?dio de uma escola da rede estadual, localizada do munic?pio de Serop?dica. Para efeitos de avalia??o da experi?ncia, foram aplicados, na turma pesquisada, testes antes e depois das atividades, abordando o conte?do trabalhado e a motiva??o para estudar matem?tica. Tais testes permitiram as an?lises do impacto do trabalho desenvolvido na turma e da efic?cia da constru??o e utiliza??o do AGA.