113,902 research outputs found
Evaluation Design and Technical Assistance Opportunities: Early Findings From the Beacon Community Program Evaluation Teams
Examines study designs, evaluation approaches, outcome measures, data sources, challenges, and technical assistance needs among sites in a project under the American Recovery and Reinvestment Act to strengthen health information technology capabilities
Understanding smart contracts as a new option in transaction cost economics
Among different concepts associated with the term blockchain, smart contracts have been a prominent one, especially popularized by the Ethereum platform. In this study, we unpack this concept within the framework of Transaction Cost Economics (TCE). This institutional economics theory emphasizes the role of distinctive (private and public) contract law regimes in shaping firm boundaries. We propose that widespread adoption of the smart contract concept creates a new option in public contracting, which may give rise to a smart-contract-augmented contract law regime. We discuss tradeoffs involved in the attractiveness of the smart contract concept for firms and the resulting potential for change in firm boundaries. Based on our new conceptualization, we discuss potential roles the three branches of government â judicial, executive, and legislative â in enabling and using this new contract law regime. We conclude the paper by pointing out limitations of the TCE perspective and suggesting future research directions
D3.2 Cost Concept Model and Gateway Specification
This document introduces a Framework supporting the implementation of a cost concept model against which current and future cost models for curating digital assets can be benchmarked. The value built into this cost concept model leverages the comprehensive engagement by the 4C project with various user communities and builds upon our understanding of the requirements, drivers, obstacles and objectives that various stakeholder groups have relating to digital curation. Ultimately, this concept model should provide a critical input to the development and refinement of cost models as well as helping to ensure that the curation and preservation solutions and services that will inevitably arise from the commercial sector as âsupplyâ respond to a much better understood âdemandâ for cost-effective and relevant tools. To meet acknowledged gaps in current provision, a nested model of curation which addresses both costs and benefits is provided. The goal of this task was not to create a single, functionally implementable cost modelling application; but rather to design a model based on common concepts and to develop a generic gateway specification that can be used by future model developers, service and solution providers, and by researchers in follow-up research and development projects.<p></p>
The Framework includes:<p></p>
⢠A Cost Concept Modelâwhich defines the core concepts that should be included in curation costs models;<p></p>
⢠An Implementation Guideâfor the cost concept model that provides guidance and proposes questions that should be considered when developing new cost models and refining existing cost models;<p></p>
⢠A Gateway Specification Templateâwhich provides standard metadata for each of the core cost concepts and is intended for use by future model developers, model users, and service and solution providers to promote interoperability;<p></p>
⢠A Nested Model for Digital Curationâthat visualises the core concepts, demonstrates how they interact and places them into context visually by linking them to A Cost and Benefit Model for Curation.<p></p>
This Framework provides guidance for data collection and associated calculations in an operational context but will also provide a critical foundation for more strategic thinking around curation such as the Economic Sustainability Reference Model (ESRM).<p></p>
Where appropriate, definitions of terms are provided, recommendations are made, and examples from existing models are used to illustrate the principles of the framework
A cluster randomised controlled trial of the efficacy of a brief walking intervention delivered in primary care : study protocol
Background: The aim of the present research is to conduct a fully powered explanatory trial to evaluate the
efficacy of a brief self-regulation intervention to increase walking. The intervention will be delivered in primary care
by practice nurses (PNs) and Healthcare Assistants (HCAs) to patients for whom increasing physical activity is a
particular priority. The intervention has previously demonstrated efficacy with a volunteer population, and
subsequently went through an iterative process of refinement in primary care, to maximise acceptability to both
providers and recipients.
Methods/ Design: This two arm cluster randomised controlled trial set in UK general practices will compare two
strategies for increasing walking, assessed by pedometer, over six months. Patients attending practices randomised
to the self-regulation intervention arm will receive an intervention consisting of behaviour change techniques
designed to increase walking self-efficacy (confidence in ability to perform the behaviour), and to help people
translate their âgoodâ intentions into behaviour change by making plans. Patients attending practices randomised
to the information provision arm will receive written materials promoting walking, and a short unstructured
discussion about increasing their walking.
The trial will recruit 20 PN/HCAs (10 per arm), who will be trained by the research team to deliver the selfregulation
intervention or information provision control intervention, to 400 patients registered at their practices
(20 patients per PN/HCA). This will provide 85% power to detect a mean difference of five minutes/day walking
between the self-regulation intervention group and the information provision control group. Secondary outcomes
include health services costs, and intervention effects in sub-groups defined by age, ethnicity, gender, socioeconomic
status, and clinical condition. A mediation analysis will investigate the extent to which changes in
constructs specified by the Theory of Planned Behaviour lead to changes in objectively assessed walking behaviour.
Discussion: This trial addresses the current lack of evidence for interventions that are effective at increasing
walking and that can be offered to patients in primary care. The intervention being evaluated has demonstrated
efficacy, and has been through an extensive process of adaptation to ensure acceptability to both provider and
recipient, thus optimising fidelity of intervention delivery and treatment receipt. It therefore provides a strong test
of the hypothesis that a self-regulation intervention can help primary care patients increase their walking
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