Introdução: O acompanhamento do parceiro no pré-natal, parto e pós-parto de sua companheira mostram resultados positivos em relação à saúde materna, infantil e também relacionados à saúde do homem. É uma importante estratégia de aproximar os futuros pais dos serviços de saúde e melhorar o vínculo destes com a paternidade. Objetivo: Avaliar se a implementação da tecnologia SMS através do programa PRENACEL para o parceiro como um programa de educação em saúde é um suplemento útil ao acompanhamento pré-natal padrão. Método: Ensaio aleatorizado controlado por conglomerados representados por unidades de saúde. Selecionamos 20 unidades de saúde que foram aleatoriamente alocadas segundo critérios pré estabelecidos, 10 sendo controle e 10 como intervenção. Os parceiros das gestantes que iniciaram o pré-natal antes da 20ª semana de gestação foram a população do estudo. Os parceiros inscritos no PRENACEL receberam periodicamente mensagens curtas de texto via celular com informações sobre gestação e parto. Nas unidades do grupo controle os parceiros receberam, junto com suas companheiras, o pré-natal padrão. Resultados: 186 parceiros foram entrevistados, 62 do grupo PRENACEL, 73 do grupo intervenção, mas que não optaram pelo PRENACEL e 51 do grupo controle. Encontramos um perfil com idade média de 30 anos e a maioria dos entrevistados (51%) se declarou como raça/cor parda. Grande parte dos entrevistados (39,7%) relatou ter em média de 9,3 anos de estudo. A maioria dos homens (57,5%) coabita com a companheira e foi classificada como classe C (63,7%). A adesão ao programa PRENACEL foi de 53,4%. Houve uma maior participação dos parceiros do grupo PRENACEL nas consultas de pré- natal, assim como foi observada uma maior presença destes no momento do parto como acompanhante quando comparado aos demais grupos. Conclusão: O estudo mostrou que uma estratégia de educação em saúde utilizando as tecnologias de comunicação parece ter boa aceitabilidade e um papel promissor no engajamento de homens aos cuidados pré-natal, parto e pós-parto de suas companheiras. / Introduction: The partner accompanying the prenatal care, birth and postpartum care of the woman has presented positive results in relation to mother and child health and also in relation to the health of the man. This is an important strategy to bring future fathers closer to health services and to improve their link with paternity. Aim: To evaluate whether the implementation of SMS technology, through the PRENACEL program for the partner as a health education program, is a useful supplement to standard prenatal monitoring. Method: A parallel cluster randomized trial, with the clusters representing health units. The partners of the pregnant women who started prenatal care prior to the 20th week of gestation were the study population of the intervention group. The participants received periodic short text messages via mobile phone with information about the pregnancy and birth. In the control group units the partners, together with the women, received the standard prenatal care. Results: 186 partners were interviewed, 62 from the PRENACEL group, 73 from the intervention group that did not opt for PRENACEL and 51 from the control group. A profile with a mean age of 30 years was found and the majority of respondents (51%) declared themselves as brown race/color. The interviewees presented a mean of 9.3 years of study. The majority of the men (57.5%) cohabited with their partner and 63.7% were classified as socioeconomic class C. The adherence to the PRENACEL program was 53.4%. There was a greater participation of the PRENACEL partners in the prenatal consultations, as well as a greater presence of them accompanying the woman at the moment of the birth when compared to the other groups. Conclusion: The study showed that a health education strategy using communication technology seems to have good acceptability and a promising role in engaging men in the prenatal care, birth and postpartum care of their partners.

Introdução: O acompanhamento do parceiro no pré-natal, parto e pós-parto de sua companheira mostram resultados positivos em relação à saúde materna, infantil e também relacionados à saúde do homem. É uma importante estratégia de aproximar os futuros pais dos serviços de saúde e melhorar o vínculo destes com a paternidade. Objetivo: Avaliar se a implementação da tecnologia SMS através do programa PRENACEL para o parceiro como um programa de educação em saúde é um suplemento útil ao acompanhamento pré-natal padrão. Método: Ensaio aleatorizado controlado por conglomerados representados por unidades de saúde. Selecionamos 20 unidades de saúde que foram aleatoriamente alocadas segundo critérios pré estabelecidos, 10 sendo controle e 10 como intervenção. Os parceiros das gestantes que iniciaram o pré-natal antes da 20ª semana de gestação foram a população do estudo. Os parceiros inscritos no PRENACEL receberam periodicamente mensagens curtas de texto via celular com informações sobre gestação e parto. Nas unidades do grupo controle os parceiros receberam, junto com suas companheiras, o pré-natal padrão. Resultados: 186 parceiros foram entrevistados, 62 do grupo PRENACEL, 73 do grupo intervenção, mas que não optaram pelo PRENACEL e 51 do grupo controle. Encontramos um perfil com idade média de 30 anos e a maioria dos entrevistados (51%) se declarou como raça/cor parda. Grande parte dos entrevistados (39,7%) relatou ter em média de 9,3 anos de estudo. A maioria dos homens (57,5%) coabita com a companheira e foi classificada como classe C (63,7%). A adesão ao programa PRENACEL foi de 53,4%. Houve uma maior participação dos parceiros do grupo PRENACEL nas consultas de pré- natal, assim como foi observada uma maior presença destes no momento do parto como acompanhante quando comparado aos demais grupos. Conclusão: O estudo mostrou que uma estratégia de educação em saúde utilizando as tecnologias de comunicação parece ter boa aceitabilidade e um papel promissor no engajamento de homens aos cuidados pré-natal, parto e pós-parto de suas companheiras. / Introduction: The partner accompanying the prenatal care, birth and postpartum care of the woman has presented positive results in relation to mother and child health and also in relation to the health of the man. This is an important strategy to bring future fathers closer to health services and to improve their link with paternity. Aim: To evaluate whether the implementation of SMS technology, through the PRENACEL program for the partner as a health education program, is a useful supplement to standard prenatal monitoring. Method: A parallel cluster randomized trial, with the clusters representing health units. The partners of the pregnant women who started prenatal care prior to the 20th week of gestation were the study population of the intervention group. The participants received periodic short text messages via mobile phone with information about the pregnancy and birth. In the control group units the partners, together with the women, received the standard prenatal care. Results: 186 partners were interviewed, 62 from the PRENACEL group, 73 from the intervention group that did not opt for PRENACEL and 51 from the control group. A profile with a mean age of 30 years was found and the majority of respondents (51%) declared themselves as brown race/color. The interviewees presented a mean of 9.3 years of study. The majority of the men (57.5%) cohabited with their partner and 63.7% were classified as socioeconomic class C. The adherence to the PRENACEL program was 53.4%. There was a greater participation of the PRENACEL partners in the prenatal consultations, as well as a greater presence of them accompanying the woman at the moment of the birth when compared to the other groups. Conclusion: The study showed that a health education strategy using communication technology seems to have good acceptability and a promising role in engaging men in the prenatal care, birth and postpartum care of their partners.

The introduction of wireless device text messaging, as an alternative to a citizen placing a telephone call for police help, generates the need for new polices and processes relevant to police call-taker, police dispatcher, and police officer response to reported emergencies. Little scholarly research explores the policy issues around the use of text 9-1-1 within public safety answering point operations. Using systems theory as the foundation, the purpose of this qualitative case study was to explore the potential use of written communication via a wireless device text message for reporting a police emergency. Research questions focused on the reciprocal relationships in communication used to initiate an emergency call for service and police response. A maximum variation purposeful sampling technique was used to recruit 16 individuals with knowledge of placing, receiving, or responding to a police emergency request, for this study. Data collection methods also included police call-taker observations of four active 9-1-1 calls, 9-1-1 and police radio recordings of the calls, physical artifacts, and documentation. All data were inductively coded and then subjected to a thematic analysis procedure. Findings indicate that text messages may be a preferred option in certain types of situations, such as home invasions, where the victim may not be able to speak to call-takers as a matter of protecting personal safety. However, the use of text messages is also perceived as creating a potential for delayed police response due to the asynchronous nature of the process. Recommendations to police executives and policy makers include enhancing call-taker training and citizen instruction prior to the text messaging integration, thereby promoting positive social change through enhancing public safety by providing another mechanism for direct citizen-police communication.

<p>There are few empirical studies about instant messaging, and the measurements used are somewhat diverse. The main purpose of this study was to investigate if depression and loneliness differed in relation to instant message habits among young adolescents. Special focus was also on motivation behind, and time spent on instantmessaging. The study was conducted using a self report questionnaire,using 3 factors for motivation and 8 items to measure time. The 365 participants were between ages 12 and 16. The study found that depression and loneliness differed in many ways depending on what measurement compared with. The conclusion drawn is that future studies have to use more precise measurements.</p> / <p>Det finns få empiriska studier om chattande och de mått som används varierar. Huvudsyftet med den här studien var att undersöka om depression och ensamhet skilde sig i relation till chatt-vanor blandunga tonåringar. Speciellt fokus låg också på motivation bakom och tid spenderad med chattande. Studien genomfördes med ensjälvrapports frågeformulär och använde tre faktorer för motivation och 8 <em>items </em>för att mäta tid. De 365 deltagarna var mellan åldrarna 12till 16. Studien fann att depression och ensamhet skiljde sig på mångasätt beroende på vad för mått man jämförde med. Slutsatsen som drasär att framtida studier måste använda mer precisa mått.</p>

The requirements of modern e-learning techniques change. Aspects such as community interaction, flexibility, pervasive learning and increasing mobility in communication habits become more important. To meet thesechallenges e-learning platforms must provide support on mobile learning. Most approaches try to adopt centralized and static elearning mechanisms to mobile devices. However, often technically it is not possible for all kinds of devices to be connected to a central server. Therefore we introduce an application of a mobile e-learning network which operates totally decentralized with the help of an underlying ad hoc network architecture. Furthermore the concept of ad hoc messaging network (AMNET) is used as basis system architecture for our approach to implement a platform for pervasive mobile elearning.

Currently SMS is the most popular one for text messaging market, and the traffic of SMS was 5.9 trillion messages in 2011 which occupies 64.1% of the global text market. According to the research from Informa, the market share of SMS will down to 42.1% in 2016. At the same time, global mobile instant messaging traffic will increase from 1.6 trillion messages in 2011 to 7.7 trillion messages in 2016, doubling its share of global messaging traffic from 17.1% in 2011 to 34.6% in 2016. The number of IM users in 2011 reaches 2.6 billion and there are various kinds of instant messaging application available in market already. Each IM application tries to focus on the different features to differentiate from other competitors. Some IM applications are focusing on the computer users like MSN or Skype and others are focusing on the mobile device users like Whatsapp or Line. ChatInn provides a new way to help people to keep communication between different platforms. Whatsapp, one of the major competitors of IM service provider, after reaching 1m users by the end of 2009, Whatsapp’s downloads increased tenfold during 2010. The company does not reveal its current user numbers but analysts assume it is in the tens of millions. ChatInn is a web base instant messaging service which can work on the computers and the mobile devices. ChatInn’s goal is to provide a quick, simple and a safe way for person who wants a quick short meeting or chatting. Not like other IM applications, ChatInn doesn’t require the installation or the complicated registration to be able to use this service. For the new user, the only required information is the username and password, no other personal information is needed. To host or start a short meeting or chatting, the user only needs to send out the meeting url link which is generated by ChatInn to the target contact. The target contact could just simply click on the link from the computer or mobile device to enter the meeting or chatting. ChatInn also provides the app for mobile device users which allow the user could be always contacted online just like other IM apps. ChatInn is expected to reach 100K users in 6 months and more than 1 million users in the 3rd year of operation. Advertising will be the major profit center, and it highly depends on the size of user base. There will be net profit in the end of 2nd year and will generate net profit of 5.29M. When the active users keep growing steadily, ChatInn would start global marketing promotion as well in order to keep expending the business scale.

There are few empirical studies about instant messaging, and the measurements used are somewhat diverse. The main purpose of this study was to investigate if depression and loneliness differed in relation to instant message habits among young adolescents. Special focus was also on motivation behind, and time spent on instantmessaging. The study was conducted using a self report questionnaire,using 3 factors for motivation and 8 items to measure time. The 365 participants were between ages 12 and 16. The study found that depression and loneliness differed in many ways depending on what measurement compared with. The conclusion drawn is that future studies have to use more precise measurements. / Det finns få empiriska studier om chattande och de mått som används varierar. Huvudsyftet med den här studien var att undersöka om depression och ensamhet skilde sig i relation till chatt-vanor blandunga tonåringar. Speciellt fokus låg också på motivation bakom och tid spenderad med chattande. Studien genomfördes med ensjälvrapports frågeformulär och använde tre faktorer för motivation och 8 items för att mäta tid. De 365 deltagarna var mellan åldrarna 12till 16. Studien fann att depression och ensamhet skiljde sig på mångasätt beroende på vad för mått man jämförde med. Slutsatsen som drasär att framtida studier måste använda mer precisa mått.

Lymphoedema is a chronic health condition characterized by the accumulation of lymphatic fluid in the subcutaneous tissues resulting in arm swelling and can significantly affect physical and psychological health and QOL. Although significant research on lymphoedema has developed over the past decade, the literature reveals that there are gaps in knowledge on framing the illness, communication, and effective practices to improve the QOL for individuals living with lymphoedema. This research contributes to this growing field of research through a qualitative investigation of twelve women's reported understandings, experiences, and perceptions of lymphoedema using Brown’s (1995) theory of framing disease and illness. Semi-structured interviews were conducted with women living with lymphoedema to determine the impact of health messaging, to explore the ways in which these women made sense of conflicting messages on exercise, and to better understand how barriers to the effective adoption and integration of good management practices can be overcome.

Lymphoedema is a chronic health condition characterized by the accumulation of lymphatic fluid in the subcutaneous tissues resulting in arm swelling and can significantly affect physical and psychological health and QOL. Although significant research on lymphoedema has developed over the past decade, the literature reveals that there are gaps in knowledge on framing the illness, communication, and effective practices to improve the QOL for individuals living with lymphoedema. This research contributes to this growing field of research through a qualitative investigation of twelve women's reported understandings, experiences, and perceptions of lymphoedema using Brown’s (1995) theory of framing disease and illness. Semi-structured interviews were conducted with women living with lymphoedema to determine the impact of health messaging, to explore the ways in which these women made sense of conflicting messages on exercise, and to better understand how barriers to the effective adoption and integration of good management practices can be overcome.

This thesis studies the impact of mobility and wireless channel characteristics, i. e. , variability and high bit-error-rate, on the performance of integrated voice and data wireless systems from network, transport protocol and application perspectives. <br /><br /> From the network perspective, we study the impact of user mobility on radio resource allocation. The goal is to design resource allocation mechanisms that provide seamless mobility for voice calls while being fair to data calls. In particular, we develop a distributed admission control for a general integrated voice and data wireless system. We model the number of active calls in a cell of the network as a Gaussian process with time-dependent mean and variance. The Gaussian model is updated periodically using the information obtained from neighboring cells about their load conditions. We show that the proposed scheme guarantees a prespecified dropping probability for voice calls while being fair to data calls. Furthermore, the scheme is stable, insensitive to user mobility process and robust to load variations. <br /><br /> From the transport protocol perspective, we study the impact of wireless channel variations and rate scheduling on the performance of elastic data traffic carried by TCP. We explore cross-layer optimization of the rate adaptation feature of cellular networks to optimize TCP throughput. We propose a TCP-aware scheduler that switches between two rates as a function of TCP sending rate. We develop a fluid model of the steady-state TCP behavior for such a system and derive analytical expressions for TCP throughput that explicitly account for rate variability as well as the dependency between the scheduler and TCP. The model is used to choose RF layer parameters that, in conjunction with the TCP-aware scheduler, improve long-term TCP throughput in wireless networks. A distinctive feature of our model is its ability to capture variability of round-trip-time, channel rate and packet error probability inherent to wireless communications. <br /><br /> From the application perspective, we study the performance of wireless messaging systems. Two popular wireless applications, the short messaging service and multimedia messaging service are considered. We develop a mathematical model to evaluate the performance of these systems taking into consideration the fact that each message tolerates only a limited amount of waiting time in the system. Using the model, closed-form expressions for critical performance parameters such as message loss, message delay and expiry probability are derived. Furthermore, a simple algorithm is presented to find the optimal temporary storage size that minimizes message delay for a given set of system parameters.