SciCombinator

Discover the most talked about and latest scientific content & concepts.

Concept: Message

172

Following male circumcision for HIV prevention, a high proportion of men fail to return for their scheduled seven-day post-operative visit. We evaluated the effect of short message service (SMS) text messages on attendance at this important visit.

Concepts: Randomized controlled trial, Mobile phone, Text messaging, Message, Circumcision, Short Message Service, SMS, Instant messaging

145

The Livongo for Diabetes Program offers members (1) a cellular technology-enabled, two-way messaging device that measures blood glucose (BG), centrally stores the glucose data, and delivers messages back to the individual in real time; (2) unlimited BG test strips; and (3) access to a diabetes coaching team for questions, goal setting, and automated support for abnormal glucose excursions. The program is sponsored by at-risk self-insured employers, health plans and provider organizations where it is free to members with diabetes or it is available directly to the person with diabetes where they cover the cost.

Concepts: Diabetes mellitus, Diabetes, Blood sugar, Management, Individual, Message, Goal, Peter Milligan

104

The initial introduction of the World Wide Web in 1990 brought around the biggest change in information acquisition. Due to the abundance of devices and ease of access they subsequently allow, the utility of mobile health (mHealth) has never been more endemic. A substantial amount of interactive and psychoeducational apps are readily available to download concerning a wide range of health issues. mHealth has the potential to reduce waiting times for appointments; eradicate the need to meet in person with a clinician, successively diminishing the workload of mental health professionals; be more cost effective to practices; and encourage self-care tactics. Previous research has given valid evidence with empirical studies proving the effectiveness of physical and mental health interventions using mobile apps. Alongside apps, there is evidence to show that receiving short message service (SMS) messages, which entail psychoeducation, medication reminders, and links to useful informative Web pages can also be advantageous to a patient’s mental and physical well-being. Available mHealth apps and SMS services and their ever improving quality necessitates a systematic review in the area in reference to reduction of symptomology, adherence to intervention, and usability.

Concepts: Medicine, Epidemiology, Economics, Psychiatry, World Wide Web, Text messaging, Message, Short Message Service

102

In this work, we describe the first modular, and programmable platform capable of transmitting a text message using chemical signalling - a method also known as molecular communication. This form of communication is attractive for applications where conventional wireless systems perform poorly, from nanotechnology to urban health monitoring. Using examples, we demonstrate the use of our platform as a testbed for molecular communication, and illustrate the features of these communication systems using experiments. By providing a simple and inexpensive means of performing experiments, our system fills an important gap in the molecular communication literature, where much current work is done in simulation with simplified system models. A key finding in this paper is that these systems are often nonlinear in practice, whereas current simulations and analysis often assume that the system is linear. However, as we show in this work, despite the nonlinearity, reliable communication is still possible. Furthermore, this work motivates future studies on more realistic modelling, analysis, and design of theoretical models and algorithms for these systems.

Concepts: Chemistry, Text messaging, Message, SMS

77

Communication about physical activity (PA) frames PA and influences what it means to people, including the role it plays in their lives. To the extent that PA messages can be designed to reflect outcomes that are relevant to what people most value experiencing and achieving in their daily lives, the more compelling and effective they will be. Aligned with self-determination theory, this study investigated proximal goals and values that are salient in everyday life and how they could be leveraged through new messaging to better support PA participation among women. The present study was designed to examine the nature of women’s daily goals and priorities and investigate women’s PA beliefs, feelings, and experiences, in order to identify how PA may compete with or facilitate women’s daily goals and priorities. Preliminary recommendations are proposed for designing new PA messages that align PA with women’s daily goals and desired experiences to better motivate participation.

Concepts: Focus group, Sociology, Value, Design, Communication, Personal life, Self-determination theory, Message

28

A new form of augmentative and alternative communication (AAC) device for people with severe speech impairment-the voice-input voice-output communication aid (VIVOCA)-is described. The VIVOCA recognizes the disordered speech of the user and builds messages, which are converted into synthetic speech. System development was carried out employing user-centered design and development methods, which identified and refined key requirements for the device. A novel methodology for building small vocabulary, speaker-dependent automatic speech recognizers with reduced amounts of training data, was applied. Experiments showed that this method is successful in generating good recognition performance (mean accuracy 96%) on highly disordered speech, even when recognition perplexity is increased. The selected message-building technique traded off various factors including speed of message construction and range of available message outputs. The VIVOCA was evaluated in a field trial by individuals with moderate to severe dysarthria and confirmed that they can make use of the device to produce intelligible speech output from disordered speech input. The trial highlighted some issues which limit the performance and usability of the device when applied in real usage situations, with mean recognition accuracy of 67% in these circumstances. These limitations will be addressed in future work.

Concepts: The Trial, Methodology, Input, Message, Output, Usability, Input/output, Augmentative and alternative communication

27

A key concern on college campuses is how to help students avoid negative outcomes related to alcohol use. One way to address this is to encourage students to intervene when they see others engaged in high-risk behavior. This approach, referred to as bystander intervention, requires that individuals seek to influence others; however, research on bystander intervention has not explored how students communicate when they intervene. Drawing from a multiple goals perspective, we examined individuals' goals during intervention, the types of messages individuals use to intervene, and the relationship of design logic to sense of efficacy and messages used. Participants (n = 212) identified their goals and indicated what they would say to intervene in two college-drinking scenarios. We found that differences in goals were related to the types of messages used, with more specific goals leading to messages better aligned with achieving those goals. Additionally, more sophisticated design logic was related to a higher sense of efficacy and was reflected in the types of messages individuals used to intervene. The study views bystander intervention as an influence process and highlights the communicative challenges that can impact how people intervene.

Concepts: University, Intervention, Communication, Message, Bystander effect

26

The impending public health impact of Alzheimer’s disease is tremendous. Physical activity is a promising intervention for preventing and managing Alzheimer’s disease. However, there is a lack of evidence-based public health messaging to support this position. This paper describes the application of the Appraisal of Guidelines Research and Evaluation II (AGREE-II) principles to formulate an evidence-based message to promote physical activity for the purposes of preventing and managing Alzheimer’s disease.

Concepts: Epidemiology, Vaccination, Communication, Message, Preventive medicine, Decision analysis

26

As nurses' communication is essential to prevent, intercept, and resolve medical mistakes, it is important to understand how they learn to communicate about medical errors. In this study, we identify memorable messages about communicating about mistakes that nursing students receive during their training and how they make sense of these messages. Data were acquired through individual interviews with 68 nursing students. The data were analyzed using a thematic constant comparative method. While open and honest communication about medical errors was the overarching message participants formally and informally learned, for nursing students, communicating about medical errors is a much more complex process than using open and honest communication. When dealing with medical errors, nursing students relied on three major memorable messages to guide their communication: (a) Not everyone hears about errors, (b) hierarchy matters, and © passive communication is the best way to interrupt or report an error.

Concepts: Education, Sociology, Error, Communication, Message, Visual communication, Graphic communication, Mistake

26

Nanonetworks refer to a group of nano-sized machines with very basic operational capabilities communicating to each other in order to accomplish more complex tasks such as in-body drug delivery, or chemical defense. Realizing reliable and high-rate communication between these nanomachines is a fundamental problem for the practicality of these nanonetworks. Recently, we have proposed a molecular communication method based on F¨orster Resonance Energy Transfer (FRET) which is a nonradiative excited state energy transfer phenomenon observed among fluorescent molecules, i.e., fluorophores. We have modeled the FRET-based communication channel considering the fluorophores as single-molecular immobile nanomachines, and shown its reliability at high rates, and practicality at the current stage of nanotechnology. In this study, for the first time in the literature, we investigate the network of mobile nanomachines communicating through FRET. We introduce two novel mobile molecular nanonetworks: FRET-based mobile molecular sensor/actor nanonetwork (FRET-MSAN) which is a distributed system of mobile fluorophores acting as sensor or actor node; and FRET-based mobile ad hoc molecular nanonetwork (FRETMAMNET) which consists of fluorophore-based nanotransmitter, nanoreceivers and nanorelays. We model the single message propagation based on birth-death processes with continuous time Markov chains. We evaluate the performance of FRETMSAN and FRET-MAMNET in terms of successful transmission probability and mean extinction time of the messages, system throughput, channel capacity and achievable communication rates.

Concepts: Chemistry, Atom, Probability, Markov chain, Communication, Förster resonance energy transfer, Message, Continuous-time Markov process