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PurposeOver 50 percent of the disasters occur in Asia and in the past five year disasters in the region have killed around half million people. Most of these deaths could have been prevented if reliable and effective early warning systems were in place. The purpose of this paper is to discuss the use of the emerging mobile technology for disaster risk reduction.Design/methodology/approachLIRNEasia field tested five wireless technologies, including mobile phones, in 32 tsunami affected villages in Sri Lanka; where members in the village were provided training with emergency response planning and given one or more of the technologies for receiving hazard information. Further lessons were learned by sharing knowledge, through a consultation process, on early warning systems with stakeholders in India, Bangladesh, Malaysia, and Indonesia.FindingsThe evaluation process concluded mobile phones as the reliable, effective, and affordable solutions for alerting last‐mile communities. Disaster risk reduction can be improved using mobile application and leverage the explosive diffusion of the technology even among the poor in developing countries.Practical implicationsCoordination within government, including communication to first responders responsible for evacuation and localized warnings, and communication to mass media who serve a critical function in public warning, can be achieved through the use of an SMS engine supplemented as necessary by an informative and robust website. Cell broadcasting can serve as an extremely useful addition to the conventional public warning methods, especially in countries with significant mobile penetration.Originality/valueThe paper is intended for governments, researchers and practitioners working in the field of emergency communication.

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Agricultural knowledge plays a pivotal role in the process of transforming the livelihoods of farmers relied on subsistence agriculture. However, development of credible approaches to "share" the indigenous and scientific knowledge in possession of farmers in order to enhance their competitive edge in agriculture has become a challenge at present. This paper explores the applicability of theconcept of 'Technology Stewardship' in order to promote sustainable knowledge sharing amongst the agricultural farming communities in Sri Lanka. A community consultative process adopted with the officials ("Sponsors") and a series of structured questionnaire-based face-to-face interviews and keyinformant surveys carried out with a cross section of smallholder agriculture farmers (n=183) in the Batticaloa and Kurunegala districts facilitated gathering of baseline data/information, and in turn, to select and train six Technology Stewards (TEs). A number of field experiments ("Campaigns") were conducted then with smallholder farmers (n=260) "with" and "without" the assistance of those TEs during April 2014 to July 2015. The 'FrontlineSMS' (a low-cost, user-friendly, free and open source text messaging software) and Freedom Fone (low cost Interactive Voice Responses software) were applied to evaluate the effectiveness of knowledge sharing through the TEs work with these communities. It was found that the use of "Texting" and "Voice" facilities in day-today agricultural communication has been increased by 22% and 8%, respectively, when the process has been assisted by the TEs. This implies that TEs can effectively be utilized, with capacity development through intensive training modules, to reduce the transaction costs associated with sharing of information with farmers, starting from the lowest socioeconomic category in such communities.

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