Verifying the Integrity of Hyperlinked Information Using Linked Data and Smart Contracts

We present an approach to verify off-chained information using Linked Data, Smart Contracts, and RDF graph hashes stored on a Distributed Ledger. We use the notion of a Linked Pedigree, i.e. a decentralised dataset for storing hyperlinked information, as modelling foundation. We evaluate our approach by comparing different ways to build the Smart Contract. We develop a cost model and show, based on our implementation, that for managing multiple Linked Pedigree instances, a single larger Smart Contract is superior to multiple smaller Smart Contracts for supply chains shorter than 50 participants

The Dark Side of Information and Communication Technologies: The View from the Industry-Level of Analysis

The Year 2000 problem spurred companies to rethink investments in information and communication technologies (ICT). Many used the Y2K problem as an opportunity to renew ICT infrastructures, to install integrated enterprise packages, and to pursue new opportunities for ICT-enabled value such as e-commerce, supply chain management, and customer relationship management. Some evidence suggests that these efforts have had substantial payoffs in terms of shareholder value. But can such firm-level benefits persist when competitors catch up or when the success of leaders drives inefficient producers out of business? This panel features NSF-funded researchers whose studies have examined the impacts of ICT at the industry-level of analysis. They show significant industry-level ICT-enabled impacts with potentially negative implications for the firms competing within industries. In the Information Systems field, the ability to gain competitive advantage with ICT has long been an important theme. Although some researchers warned that ICT might contribute to the destruction of competitive advantage, by far the majority of the discourse has centered on how individual firms should invest in ICT. When taking an industry-level view of ICT-enabled competitive advantage, however, we can see its potential dark side. Among the risks ICT poses to the firms in an industry are these: • Fundamentally reducing the cost structure of an industry such that some firms can no longer compete and that others experience squeezed margins • Destruction of in-house competencies (e.g., through radical process change or business process outsourcing) • Investments in ICT are required as a condition of doing business without providing any bottom-line benefits • Increased dependency on external ICT providers leading to business inflexibility and lack of ICT knowledg

Anaerobes and methanogens dominate the microbial communities in water harvesting ponds used by Kenyan rural smallholder farmers

Many rural smallholder farmers in Kenya use water-harvesting ponds, to collect rainwater, as sustainable sources of water for domestic and agricultural purposes. There is currently limited information regarding the microbial ecology in these ponds. Here, we used High Throughput Sequencing (HTS) to characterize the microorganisms present (including potential pathogens and indicator species) alongside ion chromatography to measure water chemistry (anion and cation concentration). Fluoride and magnesium concentration were the strongest predictor variables of the microbial community. Obligately or facultatively anaerobic bacterial genera (e.g. Spirochaeta and Opitutus) were abundant within the bacterial community, whilst Woesearchaeota and methanogens dominated the archaeal community. This suggests the water in the ponds is hypoxic or anoxic, and if used for irrigation, may potentially impact crop yield and viability. In addition, the opportunistic pathogen non-tuberculous mycobacteria (NTM), Mycobacterium fortuitum was found, comprising >1% of the bacterial community, suggesting a potential human health risk. Here we suggest low-cost changes to pond management, to improve or ameliorate pond anoxia and remove pathogens to benefit the livelihoods and welfare of these farms. This study also shows the applicability of HTS to broadly screen the microbial communities, assess water quality, and identify potentially pathogenic groups

The TCR perspective of gender: moving from critical theory to an Activism-Praxis Orientation

Applying a transformative consumer research (TCR) perspective urges scholars to adopt a critical praxis. In this chapter we explore what a TCR approach entails and how the proposed Transformative Gender Justice Framework is well suited to help practitioners and scholars address gender-based injustices. We highlight topics in marketing and consumer behavior studies within TCR that might benefit from the addition of a gender focus, and research on gender outside of TCR that might gain from the integration of a transformational perspective. We conclude by reflecting on the activism and praxis orientations that this integration could help stimulate both outside and within academia. Keywords: transformative consumer research, critical praxis, gender justice, inequality, recognition theory, capabilities approach, critical feminism, intersectionality theory, marginalized genders and marginalized identitie

Power logics of consumers’ gendered (in)justices: reading reproductive health interventions through the Transformative Gender Justice Framework

Global gender asymmetries in marketing and consumer behavior were recently exemplified by the Transformative Gender Justice Framework (TGJF). The TGJF, however, lacks an explicit reference to power—an aspect that becomes apparent when it is used to assess a consumer phenomenology. In this article we augment the TGJF by building out the power logics and by empirically testing it through an assessment of the reproductive market in Uganda. We capture macro-, meso-, and micro-level power asymmetries, and explore how bio-power and control over resources melds with local gender relations and agentic practices that i) leave social marketing efforts misaligned with embodied realities, and ii) result in dichotomies and tensions in the reproductive health market as the North-South strive to define the modern-traditional, medical-pleasurable, and women-men nature of contraceptives

Exploring the Relationship Between Online Social Network Site Usage and the Impact on Quality of Life for Older and Younger Users: An Interaction Analysis

This is an Open Access journal. ©Darren Quinn, Liming Chen, Maurice D Mulvenna, Raymond Bond. Originally published in the Journal of Medical Internet Research (http://www.jmir.org), 29.09.2016. This is an open-access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in the Journal of Medical Internet Research, is properly cited

Networking - A Statistical Physics Perspective

Efficient networking has a substantial economic and societal impact in a broad range of areas including transportation systems, wired and wireless communications and a range of Internet applications. As transportation and communication networks become increasingly more complex, the ever increasing demand for congestion control, higher traffic capacity, quality of service, robustness and reduced energy consumption require new tools and methods to meet these conflicting requirements. The new methodology should serve for gaining better understanding of the properties of networking systems at the macroscopic level, as well as for the development of new principled optimization and management algorithms at the microscopic level. Methods of statistical physics seem best placed to provide new approaches as they have been developed specifically to deal with non-linear large scale systems. This paper aims at presenting an overview of tools and methods that have been developed within the statistical physics community and that can be readily applied to address the emerging problems in networking. These include diffusion processes, methods from disordered systems and polymer physics, probabilistic inference, which have direct relevance to network routing, file and frequency distribution, the exploration of network structures and vulnerability, and various other practical networking applications.Comment: (Review article) 71 pages, 14 figure

A characteristics framework for Semantic Information Systems Standards

Semantic Information Systems (IS) Standards play a critical role in the development of the networked economy. While their importance is undoubted by all stakeholders—such as businesses, policy makers, researchers, developers—the current state of research leaves a number of questions unaddressed. Terminological confusion exists around the notions of “business semantics”, “business-to-business interoperability”, and “interoperability standards” amongst others. And, moreover, a comprehensive understanding about the characteristics of Semantic IS Standards is missing. The paper addresses this gap in literature by developing a characteristics framework for Semantic IS Standards. Two case studies are used to check the applicability of the framework in a “real-life” context. The framework lays the foundation for future research in an important field of the IS discipline and supports practitioners in their efforts to analyze, compare, and evaluate Semantic IS Standard

A qualitative understanding of the effects of reusable sanitary pads and puberty education: Implications for future research and practice

BACKGROUND: The management of menstruation has come to the fore as a barrier to girls’ education attainment in low income contexts. Interventions have been proposed and piloted, but the emerging nature of the field means limited evidence is available to understand their pathways of effect. // METHODS: This study describes and compares schoolgirls’ experiences of menstruation in rural Uganda at the conclusion of a controlled trial of puberty education and sanitary pad provision to elucidate pathways of effect in the interventions. Semi-structured interviews were undertaken with schoolgirls who participated in the Menstruation and the Cycle of Poverty trial concurrent with the final set of quantitative surveys. A framework approach and cross-case analysis were employed to describe and compare the experiences of 27 menstruating girls across the four intervention conditions; education (n = 8), reusable sanitary pads (n = 8), education with reusable sanitary pads (n = 6), and control (n = 5). // RESULTS: Themes included: menstrual hygiene, soiling, irritation and infection, physical experience, knowledge of menstruation, psychological, social and cultural factors, and support from others. Those receiving reusable pads experienced improvements in comfort and reliability. This translated into reduced fears around garment soiling and related school absenteeism. Other menstrual hygiene challenges of washing, drying and privacy remained prominent. Puberty education improved girls’ confidence to discuss menstruation and prompted additional support from teachers and peers. // CONCLUSIONS: Findings have important implications for the development and evaluation of future interventions. Results suggest the provision of menstrual absorbents addresses one core barrier to menstrual health, but that interventions addressing broader needs such as privacy may improve effectiveness. Puberty education sessions should increase attention to body awareness and include strategies to address a wider range of practical menstrual challenges, including pain management. Interviews revealed possibilities for improving quantitative surveys in future research