Cellular Phone
Mostrando 1-12 de 21 artigos, teses e dissertações.
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1. Zumbido e telefones celulares: o papel da radiação eletromagnética de radiofrequência
RESUMO INTRODUÇÃO: Zumbido é uma condição multifatorial cuja prevalência vem aumentando nas últimas décadas. Em todo o mundo, o aumento progressivo do uso de telefones celulares tem exposto as orelhas a uma maior carga de radiação eletromagnética de radiofrequência (REM-RF). Alguns pacientes com zumbido referem que o uso excessivo do telefone ce
Braz. j. otorhinolaryngol.. Publicado em: 2016-02
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2. Bioleaching of gold, copper and nickel from waste cellular phone PCBs and computer goldfinger motherboards by two
Aspergillus niger strainsIn an effort to develop alternate techniques to recover metals from waste electrical and electronic equipment (WEEE), this research evaluated the bioleaching efficiency of gold (Au), copper (Cu) and nickel (Ni) by two strains of
Aspergillus niger in the presence of gold-plated finger integrated circuits found in computer motherboards (GFIBraz. J. Microbiol.. Publicado em: 2015-09
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3. Synthesis of Co-Al-Cl LDH by cathodic material reprocessing from cellular phone batteries
The aim of this paper was the recovering of the cathodic material from discarded lithium ion batteries for obtainment of the lamellar double hydroxides (LDHs) by the co-precipitation method at variable pH in HCl and H2O2 1:1 (v/v) acid solution containing Co and Al (extracted from cathodic material composed of LiCoO2 and aluminum foil). These metals were pre
Mat. Res.. Publicado em: 29/04/2014
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4. Rat testicular impairment induced by electromagnetic radiation from a conventional cellular telephone and the protective effects of the antioxidants vitamins C and E
OBJECTIVE: The aim of this study was to investigate the possible effects of electromagnetic radiation from conventional cellular phone use on the oxidant and antioxidant status in rat blood and testicular tissue and determine the possible protective role of vitamins C and E in preventing the detrimental effects of electromagnetic radiation on the testes. MAT
Clinics. Publicado em: 2012-07
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5. Um ambiente virtual de aprendizagem que utiliza avaliação formativa, a tecnologia de mensagens curtas e dispositivos móveis / A learning virtual environment using formative assessment, short message technology and mobile devices
Os dispositivos móveis podem ajudar o homem em várias atividades. Com adaptações no uso e nos programas, podem também apoiar alunos e educadores no ambiente educacional. Estas mudanças podem introduzir novos conceitos e poderosas ferramentas que, ao mesmo tempo, ampliam as possibilidades e a complexidade destes ambientes. No entanto, a limitada capacid
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/11/2011
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6. COMUNICAÇÃO MERCADOLÓGICA EM CELULARES: um panorama do mobile marketing brasileiro
The main aim of this research is analyzing the marketing communication processes that use mobile phones as publicizing platform. The research intent is to know which mobile marketing practices has been carried out in Brazil and how developed contents for mobiles are used in business disclosure. The connected young consumers characteristics, drawing attention
Publicado em: 2011
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7. Study of the innovation management process in the development of a discontinuous product case : Motorola RAZR V3
This study will collaborate by bringing some detailed analysis and findings on a special case study of a discontinuous product development process, trying to answer how the discontinuous product development process takes place and the main factors that influence this process. Additionally, it tried to explore some explanations for the difficulties generally
Publicado em: 18/05/2010
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8. Versos-livres : a estética do cotidiano no documentário feito com celular / Free-verses : the aesthetic of quotidian in documentary done with cellular-phone
Essa dissertação propôs-se a fazer uma análise do cinema contemporâneo a partir do universo dos filmes feitos com telefone celular, especificamente dos documentários. Para começar, procuramos entender em que contexto da história do cinema esses filmes se situam. Em seguida, mergulhamos nas características mais específicas do dispositivo desses film
Publicado em: 2010
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9. Automatically composing reusable software components for mobile devices
Product-line architectures (PLAs) are an effective mechanism for facilitating the reuse of software components on different mobile devices. Mobile applications are typically delivered to devices using over-the-air provisioning services that allow a mobile phone to download and install software over a cellular network connection. Current techniques for automa
Journal of the Brazilian Computer Society. Publicado em: 2008-03
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10. THE FAST OBSOLESCENCE OF CELL PHONES: WHAT YOUNG USERS OF THIS TECHONOLOGY THINK AND FEEL ABOUT IT / A VELOZ OBSOLESCÊNCIA DOS APARELHOS CELULARES: O QUE PENSAM E SENTEM JOVENS USUÁRIOS DESTA TECNOLOGIA
We live in a time of ever-increasing technological changes. Nowadays, we can clearly see a significant growth in the number of cell phone users, which shows how fast the this market is expanding. The purpose of the present study was to find out how middle class young people deal with the obsolescence, consumption and constant innovations in cell phones. To r
Publicado em: 2008
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11. Interfaces Mobile: metodologia de desenvolvimento de modelos de navegação e análise de inadequação de heranças da comunicação analógica
A diversidade e popularização dos equipamentos sem-fio (wireless) usados para telefonia, consumo de música e organização pessoal pedem atenção a esses dispositivos móveis. O barateamento, especialmente dos celulares, demanda um estudo crítico de suas interfaces, haja vista que se tornaram um dos cernes da comunicação contemporânea. O objetivo des
Publicado em: 2008
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12. Uma avaliação experimental e numérica do efeito da rigidez geométrica na resposta dinâmica de estruturas esbeltas sujeitas à excitação de vento. / An experimental and numerical evaluation of the geometric stiffness effect on the dynamic response of slender structures under wind excitation.
Due to a politically and economically pragmatic decision, Brazil has chosen to intensely develop its cellular phone system, in order to bypass a stage of development. Once the decision has been taken, implementation was set in an explosive pace in the 1990s decade by installing tens of thousands of stations. As the electronic systems are usually more expensi
Publicado em: 2008