13,441 research outputs found

    Cognitive Radio for Emergency Networks

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    In the scope of the Adaptive Ad-hoc Freeband (AAF) project, an emergency network built on top of Cognitive Radio is proposed to alleviate the spectrum shortage problem which is the major limitation for emergency networks. Cognitive Radio has been proposed as a promising technology to solve todayâ?~B??~D?s spectrum scarcity problem by allowing a secondary user in the non-used parts of the spectrum that aactully are assigned to primary services. Cognitive Radio has to work in different frequency bands and various wireless channels and supports multimedia services. A heterogenous reconfigurable System-on-Chip (SoC) architecture is proposed to enable the evolution from the traditional software defined radio to Cognitive Radio

    Analysis of Research on the Effects of Improved Water, Sanitation, and Hygiene on the Health of People Living with HIV and AIDS and Programmatic Implications

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    This paper reviews the existing scientific and programmatic evidence, raises WASH issues in the HIV and AIDS context that need further study to build the evidence base, assesses current WASH guidance through a review of national HIV/AIDS guidelines from five African countries, and identifies programmatic implications that home-based care programs and the WASH sectors must consider

    Parental experience of an early developmental surveillance programme for autism within Australian general practice: A qualitative study

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    Objectives Implementing support and services early in the life course has been shown to promote positive developmental outcomes for children at high likelihood of developmental conditions including autism. This study examined parents'/caregivers' experiences and perceptions about a digital developmental surveillance pathway for autism, the autism surveillance pathway (ASP), and usual care, the surveillance as usual (SaU) pathway, in the primary healthcare general practice setting. Design This qualitative study involves using a convenience selection process of the full sample of parents/caregivers that participated in the main programme, 'General Practice Surveillance for Autism', a cluster-randomised controlled trial study. All interviews were audio-recorded, transcribed and coded using NVivo V.12 software. An inductive thematic interpretive approach was adopted and data were analysed thematically. Participants Twelve parents/caregivers of children with or without a developmental condition/autism (who participated in the main programme) in South Western Sydney and Melbourne were interviewed. Settings All interviews were completed over the phone. Results There were seven major themes and 20 subthemes that included positive experiences, such as pre-existing patient-doctor relationships and their perceptions on the importance of knowing and accessing early support/services. Barriers or challenges experienced while using the SaU pathway included long waiting periods, poor communication and lack of action plans, complexity associated with navigating the healthcare system and lack of understanding by general practitioners (GPs). Common suggestions for improvement included greater awareness/education for parents/carers and the availability of accessible resources on child development for parents/caregivers. Conclusion The findings support the use of digital screening tools for developmental surveillance, including for autism, using opportunistic contacts in the general practice setting. Trial registration number ANZCTR (ACTRN12619001200178)

    Not about rules, but about good deals: The political economy of securing inclusive capital investment and transformation in South African mining

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    This PhD studies the imperative of racially transforming South Africa's economy in a way that spurs the growth of capital investment that is socially and locally inclusive. Part I explores the role of bargains among elites (“deals”) in facilitating investment. It studies deals as the basis of credible commitment and as the “arena of action” in the context of a relatively robust rule of law. What kind of deals produce capital investment and transformation, and what kind of deals produce predation and isomorphism? Using process tracing methodology, the research traces deal in platinum mining between 1994 and 2018. Part II examines the extent to which this investment is socially inclusive in alleviating local poverty, creating local employment, and reducing local inequality. This part relies on individual level census data of 20 million observations and geocoded mining data of over 400 mines to evaluate the local impact of mining investments on income poverty, employment, and inequality between 1996 and 2011. The study finds compelling evidence that “deals are the basis of credible commitment” to securing investment. The rule of law alone is important but insufficient as it leaves “residual uncertainty” for investors. The evaluation of the impact of mining investments on local communities suggests a qualification, at the local level, of the “resource curse” hypothesis. Mining brings benefits in terms of income poverty alleviation and employment. However, the high-low cycles of commodity price booms create employment volatility and exacerbate inequality. Mining investments inherently involve trade-offs that can be moved in net positive directions with good deals between business and the state, and local communities. The research thus contributes to the literature on property rights and investment, state-business relations and development, and natural resource governance for development

    Supporting Treatment Adherence Readiness through Training (START) for patients with HIV on antiretroviral therapy: study protocol for a randomized controlled trial.

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    BackgroundFew HIV antiretroviral adherence interventions target patients before they start treatment, assess adherence readiness to determine the timing of treatment initiation, or tailor the amount of adherence support. The Supporting Treatment Adherence Readiness through Training (START) intervention, based on the information-motivation-behavioral skills model of behavior change, is designed to address these gaps with the inclusion of (1) brief pill-taking practice trials for enhancing pretreatment adherence counseling and providing a behavioral criterion for determining adherence readiness and the timing of treatment initiation and (2) a performance-driven dose regulation mechanism to tailor the amount of counseling to the individual needs of the patient and conserve resources. The primary aim of this randomized controlled trial is to examine the effects of START on antiretroviral adherence and HIV virologic suppression.Methods/designA sample of 240 patients will be randomized to receive START or usual care at one of two HIV clinics. Primary outcomes will be optimal dose-taking adherence (>85 % prescribed doses taken), as measured with electronic monitoring caps, and undetectable HIV viral load. Secondary outcomes will include dose-timing adherence (>85 % prescribed doses taken on time) and CD4 count. Primary endpoints will be month 6 (short-term effect) and month 24 (to test durability of effect), though electronic monitoring will be continuous and a fully battery of assessments will be administered every 6 months for 24 months.DiscussionIf efficacious and cost-effective, START will provide clinicians with a model for assessing patient adherence readiness and helping patients to achieve and sustain readiness and optimal treatment benefits.Trial registrationClinicalTrials.gov identifier NCT02329782 . Registered on 22 December 2014

    A Learning Model of Technology Transfer for the Kiwifruit Industry

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    In July 2003, ZESPRI International merged the Technology Transfer team that had historically been focused on achieving uptake of new technologies with ZESPRI Innovation, the team that had been responsible for the development of new technologies. This change has combined skills in research, development and extension into a single, co-ordinated grouping to improve grower profitability through a greater contribution to supply chain developments and grower learning. The Industry Development strategy of ZESPRI Innovation is based upon a model of industry learning. The model takes into account the needs of a range of stakeholders in the supply chain, the technologies, the necessity for the industry to have clear market signals, and the different learning styles of growers. Applying the model will involve ZESPRI staff in traditional industry development events such as field days and industry development communiqués (e.g. newsletters) and a website, together with new technology development projects e.g. monitor orchards and “industry is the lab” projects. ZESPRI Innovation is moving beyond a historical “recipe-based” approach in technology transfer, to one that empowers industry participants to make effective commercial decisions based upon their own learning and knowledge. The application of developments in learning theory is an important component to the new strategy and to its on-going development.Agribusiness, Agricultural and Food Policy, Environmental Economics and Policy, Farm Management, Industrial Organization, Land Economics/Use,
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