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Background: In Bangladesh, pharmacy-purchased oral rehydration solution (ORS) is often used to treat diarrhea, including cholera. Over-the-counter sales have been used for epidemiologic surveillance in the past, but rarely, if ever, in low-income countries. With few early indicators for cholera outbreaks in endemic areas, diarrhea-related product sales may serve as a useful surveillance tool. Methodology/Principal Findings: We tracked daily ORS sales at 50 pharmacies and drug-sellers in an urban Bangladesh community of 129,000 for 6-months while simultaneously conducting surveillance for diarrhea hospitalizations among residents. We developed a mobile phone based system to track the sales of ORS and deployed it in parallel with a paper-based system. Our objectives were to determine if the mobile phone system was practical and acceptable to pharmacists and drug sellers, whether data were reported accurately compared to a paper-based system, and whether ORS sales were associated with future incidence of cholera hospitalizations within the community. We recorded 47,215 customers purchasing ORS, and 315 hospitalized diarrhea cases, 22% of which had culture-confirmed cholera. ORS sales and diarrhea incidence were independently associated with the mean daily temperature; therefore both unadjusted and adjusted models were explored. Through unadjusted cross-correlation statistics and generalized linear models, we found increases in ORS sales were significantly associated with increases in hospitalized diarrhea cases up to 9-days later and hospitalized cholera cases up to one day later. After adjusting for mean daily temperature, ORS was significantly associated with hospitalized diarrhea two days later and hospitalized cholera one day later. Conclusions/Significance: Pharmacy sales data may serve as a feasible and useful surveillance tool. Given the relatively short lagged correlation between ORS sales and diarrhea, rapid and accurate sales data are key. More work is needed in creating actionable algorithms that make use of this data and in understanding the generalizability of our findings to other settings. [ABSTRACT FROM AUTHOR]

The advent of cheap smartphones in rural areas across the globe presents an opportunity to change the mode with which researchers engage hard-to-reach populations. In particular, smartphones allow researchers to connect with respondents more frequently than standard household surveys, opening a new window into important short-term variability in key measures of household and community wellbeing. In this paper, we present early results from a pilot study in rural Bangladesh using a ‘microtasks for micropayments’ model to collect a range of community and household living standards data using Android smartphones. We find that more frequent task repetition with shorter recall periods leads to more inclusive reporting, improved capture of intra-seasonal variability, and earlier signals of events such as illness. Payments in the form of mobile talk time and data provide a positive development externality in the form of expanded access to mobile internet and social networks. Taken to scale, programs such as this have potential to transform data collection in rural areas, providing near-real-time windows into the development of markets, the spread of illnesses, or the diffusion of ideas and innovations. [ABSTRACT FROM AUTHOR]

Making farmers in developing countries more informed about market opportunities is generally considered an important step toward development of the agricultural sector and increasing individual farmers' income. Mobile phones are a useful technology for delivering such information, but are farmers ready? According to Sen [Development as freedom. In J. Ezer (Ed.), Gandhi's third assassination: Information and communication technology education in India (pp. 201-212)], human capability is the basic driver for development. This paper investigates, by means of a survey (n = 420) to farmers in rural Bangladesh, what factors affect mobile phone ownership and use and what professional information is asked for. We find that access is very high, to a large extent through community use. Neither education nor income is a determining factor, but 'modernity' - being young and/or having children - is. Even the very poor have access. Attitudes are very positive not just to the phones, but also to using them for professional information services. Hence, human capacity for development is there, as is technology. What is still lacking is the useful services adapted to the rural usage patterns and social context. [ABSTRACT FROM AUTHOR]

This paper describes how distance educations in developing countries can enhance interactivity by means of information and communication technologies. It is argued that e-learning involves a shift in the educational structure from traditional transmission of knowledge to interactive creation of knowledge. Our case studies are two distance educations in Bangladesh and Sri Lanka that use different technologies for implementing interactivity; Internet and computers in one case and video and mobile phones in the other. The findings are analyzed based on Structuration Theory and we compare the two approaches based on emerging norms and beliefs. Findings from both cases show the concurrent enactment of both the transmission and the interactive structure. Whereas peer collaboration and the use of self-assessment tools make students take more ownership of their learning, we also found the idea of a classroom with an instructive teacher to be deeply rooted in the students' minds. [ABSTRACT FROM AUTHOR]