283 research outputs found

    RuleCNL: A Controlled Natural Language for Business Rule Specifications

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    Business rules represent the primary means by which companies define their business, perform their actions in order to reach their objectives. Thus, they need to be expressed unambiguously to avoid inconsistencies between business stakeholders and formally in order to be machine-processed. A promising solution is the use of a controlled natural language (CNL) which is a good mediator between natural and formal languages. This paper presents RuleCNL, which is a CNL for defining business rules. Its core feature is the alignment of the business rule definition with the business vocabulary which ensures traceability and consistency with the business domain. The RuleCNL tool provides editors that assist end-users in the writing process and automatic mappings into the Semantics of Business Vocabulary and Business Rules (SBVR) standard. SBVR is grounded in first order logic and includes constructs called semantic formulations that structure the meaning of rules.Comment: 12 pages, 7 figures, Fourth Workshop on Controlled Natural Language (CNL 2014) Proceeding

    Perception of concept and practice of social power in development interventions in Malawi

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    The study examined research participants’ perception of social power in intervention programmes in Malawi. Two districts and four villages with active participation in the intervention programmes were purposively selected. Focus group participants were purposively identified, while the snow balling procedure was employed to select key informants. A total of 375 participants consisting of 219 men and 156 women (to better explore the viewpoints of men from those of women) were drawn from the two study locations. Data were analysed by content analysis. The results showed that >98% of participants stated that power meant the ‘capacity of a social actor to influence decisions and secure compliance of other social actors. Less than 98% also perceived ‘power’ as the leadership ability of a social actor but few participants with high level of power shared this construct. Further analysis informed that power was perceived as the act of guiding fellow social actors to plan and implement activities serving common interest while another 50% of respondents perceived power as a mere potential ability to influence. Statistics however showed only 3.7% of relatively powerful social actors from agricultural extension workers and 1.3 % of sexual and reproductive health interventionists shared power as potential ability to influence way of thinking and doing. Therefore, stakeholders of development intervention should recognize experienced social actors and traditions as power indicators since these will enhance effective extension policy process aimed at development intervention among rural populace

    Analysing support towards inclusive and integrated rural advisory systems

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    Public Rural Advisory Services (RAS) have adapted to different socio-economic scenarios in politically diverse countries with the help of the third sector supporting dedicated RAS programmes. The Plantwise (PW) programme, led by the Centre for Agriculture and Bioscience International (CABI) and designed to increase food security in over 30 countries, is a good example of a public/NGO partnership, although recent evaluations have questioned its impacts on gendered agricultural information access. This study aims to investigate Plantwise’s gender impacts from individual and institutional viewpoints, interviewing smallholder farmers and extension staff involved in and outside of, the Plantwise programme in Bahawalpur and Jhang district in the Punjab province of Pakistan. This serves to highlight the programme’s impacts on systemic processes which ultimately have the potential to contribute to gender-transformative change and a more efficient and sustainable RAS. Results show differences between extension workers in a PW district and a non-PW district and between plant doctors and non-plant doctors in a PW district, though none were significant from a gendered perspective. There were interesting findings highlighting the plant clinic’s capacity as an agent of change but the low turnout of women at clinics did not reinforce the clinics’ capacity for change from a female perspective. Information from systemic, male and female-specific analyses are important to consider for PW from a practical perspective, such as the importance of spiritual locations. This study into the Pakistani PW initiative also offers an opportunity to contribute to the growing body of academic literature on the individual and institutional impacts of international development programmes, helping to understand wider aspects of international development involvement in RAS. From a practical perspective, this study also enables PW and other international development initiatives to better understand and interpret stakeholders’ perceptions, highlighting the importance of design and investment in participatory approaches to enable longer term impacts, especially focused on gender. It will also help the PW programme assess and understand implementation challenges in order to attain impact on the ground and be a driver of positive change in the country

    Carbon nanotube/alumina and graphite/alumina composite coatings on stainless steel for tribological applications

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    Carbon/alumina coatings on stainless steel are prepared by a sol-gel route, using either carbon nanotubes (8 walls on average) or graphite flakes. The friction coefficient against a steel ball is decreased by a factor of 4–5 compared to pure alumina and wear is reduced by a factor of 2 with graphite flakes. A Raman spectroscopy study of selected specimens outside and inside the worn surface shows that the carbon nanotubes are not dramatically damaged whereas the graphite flakes are broken into graphene layers. The reasons why graphite is more effective than the carbon nanotubes, for the same carbon content, to improve the tribological behavior are discussed

    Smallholder farmers’ perspectives on advisory extension services: a case study of the Gamo Communities of Southern Ethiopia

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    This is a case study-based research project investigating the status of Advisory Extension Services in southern Ethiopia. The goal was to determine whether available service provisions meet the requirements of smallholder farmers and enabled them to improve their farming practices and livelihoods. A combination of an exploratory inductive approach and mixed methods was used (e.g., questionnaire survey, focus group discussions, key informant interviews). Participants included members of farming households, and agents, experts, and providers working in the agricultural rural sector. The key findings suggested that limited access to resources and unpredictable environmental conditions were stifling smallholder farmer innovation and livelihoods. Service provisions should be better tailored to local conditions, provide greater resource access, and work more closely with farmers. The development and implementation of service provision should involve a wide range of institutions and farmers throughout the process. Local community- and farmer-based organisations are especially important, and can work alongside innovative and talented farmers to enable more effective dissemination of information. Agricultural rural development and service provision should focus greater attention on the views and perspectives of farmers from a range of areas with differing socio-demographic and agro-ecological characteristics for comparative analysis
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