Bola na rede: uma análise das estratégias comunicacionais de empresas esportivas no ambiente digital conectado

O uso das mídias sociais digitais como meio de divulgação de produtos, serviços e conteúdos organizacionais tem crescido nas últimas décadas e ganhou especial atenção nos planejamentos de comunicação organizacional e nos estudos acadêmicos sobre o tema. Nesse sentido, o segmento de empresas esportivas atua com destaque, despertando o interesse e a empatia do consumidor. Por meio de análise bibliográfica e estudo empírico, esta pesquisa teve como objetivo investigar as ações de comunicação mercadológica do segmento esportivo no ambiente digital conectado, através de um estudo de caso múltiplo das empresas Nike e Adidas. Para a obtenção dos dados, foram realizadas entrevistas em profundidade com profissionais do mercado e aplicado um protocolo de investigação de redes sociais digitais nos perfis das duas empresas. Após a coleta dos dados, estes foram analisados à luz das teorias estudadas nos capítulos iniciais (que abordaram temas como comunicação organizacional, comunicação digital, esporte e comunicação esportiva), e foi possível concluir, entre outros pontos, que, no universo do segmento esportivo, a comunicação digital conectada não prioriza o diálogo com seus públicos de interesse, sendo essencialmente baseada na divulgação unilateral de conteúdos, nem tampouco explora a potencialidade de cada uma das plataformas digitais disponíveis, replicando conteúdos em diferentes ambientes. Ficou evidente, também, o uso dos elementos constituintes do universo esportivo como argumentos estratégicos de comunicação das empresas, decorrente de sua capacidade de estreitar os laços relacionais com os públicos de interesse, por meio de seus apelos simbólicos de fácil identificação social

Scientific bases of human-machine communication by voice.

The scientific bases for human-machine communication by voice are in the fields of psychology, linguistics, acoustics, signal processing, computer science, and integrated circuit technology. The purpose of this paper is to highlight the basic scientific and technological issues in human-machine communication by voice and to point out areas of future research opportunity. The discussion is organized around the following major issues in implementing human-machine voice communication systems: (i) hardware/software implementation of the system, (ii) speech synthesis for voice output, (iii) speech recognition and understanding for voice input, and (iv) usability factors related to how humans interact with machines.

Deployment of human-machine dialogue systems.

The deployment of systems for human-to-machine communication by voice requires overcoming a variety of obstacles that affect the speech-processing technologies. Problems encountered in the field might include variation in speaking style, acoustic noise, ambiguity of language, or confusion on the part of the speaker. The diversity of these practical problems encountered in the "real world" leads to the perceived gap between laboratory and "real-world" performance. To answer the question "What applications can speech technology support today?" the concept of the "degree of difficulty" of an application is introduced. The degree of difficulty depends not only on the demands placed on the speech recognition and speech synthesis technologies but also on the expectations of the user of the system. Experience has shown that deployment of effective speech communication systems requires an iterative process. This paper discusses general deployment principles, which are illustrated by several examples of human-machine communication systems.

Managing Layoff Survivors

‰Û÷Survivor syndrome' or negative consequences of a layoff on survivors is the key reason why layoffs fail. This Capstone Project draws on downsizing-related research and proposes a customizable plan to revitalize the surviving workforce after a downsizing initiative. The plan divides downsizing-related interventions into three phases: pre-downsizing, day of the announcement, and post-downsizing. Key elements of this plan include linking the plan to a revised vision, detailed planning of the process, open, two-way communication systems, employee involvement in all stages of the process, respectable treatment of departing employees, plans to support survivors, training frontline managers, and implementing a top talent retention strategy. The Capstone also addresses roles and responsibilities of leaders, HR professionals, and managers in the survivor management process.

Análisis lexicométrico de la especificidad de la escritura digital del adolescente en WhatsApp

El artículo presenta una investigación en la que se analizan, desde una perspectiva lexicométrica y factorial, los aspectos lingüísticos y paralingüísticos más relevantes de la escritura digital síncrona del adolescente español, en uno de los programas de mensajería instantánea más utilizados en la actualidad (WhatsApp©). La escritura en soportes digitales móviles (smartphones y tabletas) es una de las actividades más realizadas en nuestra sociedad y constituye un componente esencial de la competencia comunicativa en la Sociedad de la Información. La comunicación digital forma parte de nuestras vidas y el análisis del uso comunicativo digital y ubicuo con dispositivos y programas tiene amplias repercusiones sociales, lingüísticas y pedagógicas. La investigación se ha contextualizado en una muestra de 417 conversaciones de WhatsApp de estudiantes de enseñanza secundaria, de entre 13 y 16 años, en cuatro provincias españolas. La metodología de investigación ha sido de corte cuantitativa para abordar el análisis lexicométrico del corpus lingüístico-digital con referencia a los elementos lingüísticos y paralingüísticos más relevantes; para, posteriormente, realizar el análisis de las correlaciones entre diferentes variables independientes que expliquen patrones lingüísticos y de uso en la escritura digital. Los resultados muestran que la escritura digital en este tipo de programas tiene una serie de características específicas ortotipográficas y audiovisuales condicionadas por variables de uso, el tamaño de la pantalla del dispositivo, la horas de conversación y la relación establecida entre los interlocutores.

Motorist aid citizens radio service as a wide area communication system /

Mode of access: Internet.

Investigations into MIMO systems from an electromagnetic perspective

The paper presents investigations into multiple input multiple output wireless communication systems, which are carried out from an electromagnetic perspective. The first part of the paper focuses on signal propagation models, which can be used for determining the MIMO system capacity or its performance when various space-time coding schemes are applied. Two types of models are considered. In the first model, array antennas are treated in an exact electromagnetic manner but interactions with scattering objects are incorporated using an approximate single bounce scattering approach. The other model is a simple but exact electromagnetic (EM) model, which takes into account EM interactions between antennas and scatterers. In this model, parallel wire dipoles represent antennas as well as scatterers. The second part of the paper reports on investigations into two types of MIMO testbeds. The first one is a simple transmit/receive diversity tested while the other one is a full MIMO testbed. The paper briefly describes the results obtained during the undertaken investigations

ESTRATÉGIAS DE COMUNICAÇÃO ORGANIZACIONAL DIGITAL: O ESTUDO DE CASO DA EMBRAPA

Com o surgimento da internet e sua posterior utilização como meio de comunicação, torna-se necessário conhecer, por meio de análise de bibliografia sobre comunicação e internet, além de observação empírica do ambiente digital, que possibilidades de melhoria nos processos de comunicação organizacional se abrem a partir da incorporação do uso da internet (mídias e redes sociais) às estratégias de comunicação das instituições. O estudo tem por finalidade analisar o processo de inserção da Embrapa no ambiente das mídias e redes sociais, quais as estratégias que adotou para se preparar para ingressar de maneira institucional nesse ecossistema e como ela utiliza-se das estratégias de comunicação organizacional digital para divulgar suas ações e fortalecer o relacionamento com seus públicos de interesse. Além disso, serão apresentados modelos de estratégias e abordada a importância do planejamento (com estabelecimento de objetivos, definição de públicos) e do monitoramento quando se pretende atuar no ambiente digital de maneira estratégica. O método consiste em um estudo de caso no qual será analisada a atuação da Embrapa na rede social Facebook, por meio de uma revisão de literatura, pesquisa documental, análise de conteúdo e entrevistas semiestruturadas.

A TV DIGITAL DIVULGADA NO BOLETIM ELETRÔNICO DO FNDC: UM ESTUDO SOBRE O COMPORTAMENTO DA MÍDIA NA IMPLANTAÇÃO DA TV DIGITAL NO BRASIL

Implantada no Brasil na década de 50, a TV a mídia de maior abrangência e poder ideológico entre seus públicos encara sua segunda grande transformação: ela deixa de ser analógica e passa a ser digital. Com isso, traz à tona novas possibilidades de recepção e a possível convergência de meios. Nesse contexto, o objetivo deste estudo foi analisar o processo de instalação do Sistema Brasileiro de Televisão Digital Terrestre (SBTVD-t) a partir do clipping on-line do Fórum Nacional pela Democratização da Comunicação (FNDC). A análise desse material teve como foco averiguar se o FNDC foi tendencioso ou não na veiculação de matérias voltadas aos aspectos técnicos da nova tecnologia, em detrimento de seu potencial social. Para tanto, optou-se por uma pesquisa de base quantitativa em que as informações e os dados coletados levaram à constatação de que o FNDC se mostra pouco eficaz como aparato crítico-apreciativo da grande mídia, além de não cumprir alguns de seus objetivos ao reproduzir discursos e ideologias de outros veículos. Da mesma forma, verificou-se ainda que o Governo Federal também fugiu aos objetivos listados nos decretos presidenciais que instituem e dispõem sobre a implantação do SBTVD.(AU)

Efficiency improvements to the Groupe Special Mobile (GSM) digital mobile radio system

Groupe Spécial Mobile (GSM) has been developed as the pan-European second generation of digital mobile systems. GSM operates in the 900 MHz frequency band and employs digital technology instead of the analogue technology of its predecessors. Digital technology enables the GSM system to operate in much smaller zones in comparison with the analogue systems. The GSM system will offer greater roaming facilities to its subscribers, extended throughout the countries that have installed the system. The GSM system could be seen as a further enhancement to European integration. GSM has adopted a contention-based protocol for multipoint-to-point transmission. In particular, the slotted-ALOHA medium access protocol is used to coordinate the transmission of the channel request messages between the scattered mobile stations. Collision still happens when more than one mobile station having the same random reference number attempts to transmit on the same time-slot. In this research, a modified version of this protocol has been developed in order to reduce the number of collisions and hence increase the random access channel throughput compared to the existing protocol. The performance evaluation of the protocol has been carried out using simulation methods. Due to the growing demand for mobile radio telephony as well as for data services, optimal usage of the scarce availability radio spectrum is becoming increasingly important. In this research, a protocol has been developed whereby the number of transmitted information packets over the GSM system is increased without any additional increase of the allocated radio spectrum. Simulation results are presented to show the improvements achieved by the proposed protocol. Cellular mobile radio networks commonly respond to an increase in the service demand by using smaller coverage areas. As a result, the volume of the signalling exchanges increases. In this research, a proposal for interconnecting the various entitles of the mobile radio network over the future broadband networks based on the IEEE 802.6 Metropolitan Area Network (MAN) is outlined. Simulation results are presented to show the benefits achieved by interconnecting these entities over the broadband Networks.

A structural method for the design of fault tolerant distributed control systems

Distributed digital control systems provide alternatives to conventional, centralised digital control systems. Typically, a modern distributed control system will comprise a multi-processor or network of processors, a communications network, an associated set of sensors and actuators, and the systems and applications software. This thesis addresses the problem of how to design robust decentralised control systems, such as those used to control event-driven, real-time processes in time-critical environments. Emphasis is placed on studying the dynamical behaviour of a system and identifying ways of partitioning the system so that it may be controlled in a distributed manner. A structural partitioning technique is adopted which makes use of natural physical sub-processes in the system, which are then mapped into the software processes to control the system. However, communications are required between the processes because of the disjoint nature of the distributed (i.e. partitioned) state of the physical system. The structural partitioning technique, and recent developments in the theory of potential controllability and observability of a system, are the basis for the design of controllers. In particular, the method is used to derive a decentralised estimate of the state vector for a continuous-time system. The work is also extended to derive a distributed estimate for a discrete-time system. Emphasis is also given to the role of communications in the distributed control of processes and to the partitioning technique necessary to design distributed and decentralised systems with resilient structures. A method is presented for the systematic identification of necessary communications for distributed control. It is also shwon that the structural partitions can be used directly in the design of software fault tolerant concurrent controllers. In particular, the structural partition can be used to identify the boundary of the conversation which can be used to protect a specific part of the system. In addition, for certain classes of system, the partitions can be used to identify processes which may be dynamically reconfigured in the event of a fault. These methods should be of use in the design of robust distributed systems.

Adaptive electrical signal post-processing in optical communications systems

Improving bit error rates in optical communication systems is a difficult and important problem. The error correction must take place at high speed and be extremely accurate. We show the feasibility of using hardware implementable machine learning techniques. This may enable some error correction at the speed required.

Dissipative nonlinear structures in optical fiber systems II : self-similar parabolic pulses in active fibers

In this second talk on dissipative structures in fiber applications, we overview theoretical aspects of the generation, evolution and characterization of self-similar parabolic-shaped pulses in fiber amplifier media. In particular, we present a perturbation analysis that describes the structural changes induced by third-order fiber dispersion on the parabolic pulse solution of the nonlinear Schrödinger equation with gain. Promising applications of parabolic pulses in optical signal post-processing and regeneration in communication systems are also discussed.

Dispersion-dominated nonlinear fiber-optic channel

We propose to apply a large predispersion (having the same sign as the transmission fiber) to an optical signal before the uncompensated fiber transmission in coherent communication systems. This technique is aimed at simplifica- tion of the following digital signal processing of nonlinear impairments. We derive a model describing pulse propagation in the dispersion-dominated nonlinear fiber channel. In the limit of very strong initial predispersion, the nonlinear propagation equations for each Fourier mode become local and decoupled. This paves the way for new techniques to manage fiber nonlinearity.