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I examine the central theoretical construct of ecological psychology, the concept of an affordance. In the first part of the paper, I illustrate the role affordances play in Gibson's theory of perception. In the second part, I argue that affordances are to be understood as dispositional properties, and explain what I take to be their characteristic background circumstances, triggering circumstances and manifestations. The main purpose of my analysis is to give affordances a theoretical...
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Change is driven not only by good ideas, but also by disagreement and frustration. This article takes the reader through a selective organisational history of the British NGO ActionAid from 1998 to 2001, looking at events and changes that had a bearing on the
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This article presents evidence that–alongside the successes– many information systems in developing countries can be categorized as failing either totally or partially. It then develops a new model that seeks to explain the high rates of failure. The model draws on contingency theory in order to advance the notion of design-actuality gaps: the match or mismatch between IS designs and local user actuality. This helps identify two high-risk archetypes that affect IS in developing countries:...
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Habitat conservation plans (HCPs) allow incidental take of threatened or endangered species in exchange for conservation measures that minimize and mitigate such taking. Habitat conservation plans entail a compromise between regulatory certainty and scientific uncertainty. This compromise is controversial because many HCPs are thought to inadequately address scientific uncertainty. Adaptive management is the systematic acquisition and application of reliable information to improve natural...
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Yogi Berra was right when he remarked, “If you don’t know where you’re going, you’ll wind up somewhere else.” When we collectively apply our hopes and energies to improving our communities, how do we know if we’re making the right choices along the way? How will we notice when we are spinning our wheels and what changes to make? How will we know that we are making a difference? And how will we know what success looks like to everyone in the group? By taking a community-based public health...
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Examined the psychometric properties of a set of preliteracy measures modified from the Dynamic Indicators of Basic Early Literacy Skills (DIBELS) with a sample of 75 kindergarten students. The modified battery (called DIBELS—M) includes measures of Letter Naming Fluency, Sound Naming Fluency, Initial Phoneme Ability, and Phonemic Segmentation Ability. These measures were assessed through repeated administrations in 2-wk intervals at the end of the kindergarten year. Results indicate...
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The changing culture of public administration involves accountability for results and outcomes. This article suggests that performance measurement can address such attribution questions. Contribution analysis has a major role to play in helping managers, researchers, and policymakers to arrive at conclusions about the contribution their program has made to particular outcomes. The article describes the steps necessary to produce a credible contribution story. Contents Accountability for...
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Indigenous groups offer alternative knowledge and perspectives based on their own locally developed practices of resource use. We surveyed the international literature to focus on the role of Traditional Ecological Knowledge in monitoring, responding to, and managing ecosystem processes and functions, with special attention to ecological resilience. Case studies revealed that there exists a diversity of local or traditional practices for ecosystem management. These include multiple species...
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The logical framework approach has spread enormously, including increasingly to stages of review and evaluation. Yet it has had little systematic evaluation itself. Survey of available materials indicates several recurrent failings, some less easily countered than others. In particular: focus on achievement of intended effects by intended routes makes logframes a very limiting tool in evaluation; an assumption of consensual project objectives often becomes problematic in public and...
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