71,176 research outputs found

    Evaluation of Effectiveness and Cost-Benefits of Woolen Roadside Reclamation Products

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    This research project developed three types of products for study: woolen erosion control blankets (ECBs), wool incorporated into wood fiber compost at a 40:1 ratio (compost to wool, by weight), and wool incorporated into silt fence. The project, supported by Montana Department of Transportation (MDT) and the Center for Environmentally Sustainable Transportation in Cold Climates, compared the wool products’ performance to roadside reclamation products commonly used for revegetating cut slopes: straw/coconut (coir) ECB, wood fiber compost and woven plastic silt fence. Three versions of wool silt fence were developed by the project, yet, even more versions are needed to arrive at a commercially viable product. Wool silt fence was the least promising of the three types of reclamation materials. The primary measure for success for ECBs and wool additive to the compost was the amount of seeded or desired vegetation they established after two growing seasons. The research team evaluated the performance of the woolen and standard products by measuring the percentage of canopy cover of each plant species present in each treatment plot. Canopy cover measures the percentage of ground that is covered by a vertical projection of a plant’s foliage. To conduct the comparative analysis, researchers calculated an average percent canopy cover for each functional group: seeded native grasses, desired non-seeded (volunteer) grasses and forbs, and weeds. There was no statistical difference in the mean canopy cover of seeded grass species of the compost treatment (control) compared to the cut wool with compost treatment, 6.4% and 10.2%, respectively. Thus, the project could not determine that cut wool pieces provided a benefit to plant establishment and growth when it is added to compost material. Further experimentation to determine the ideal ratio of wool pieces to add to compost is warranted. The two best performing treatments (i.e. greatest seeded grass establishment) were the rolled wool/straw ECBs. The 100% wool ECB and 50% wool/50% straw ECB had the greatest mean seeded grass canopy cover after two years. Both of these wool ECBs had more seeded grass canopy cover than the standard 70% straw/30% coir ECB demonstrating their potential as a commercially viable product for roadside revegetation applications. Laboratory tests of the wool/straw ECB demonstrated it was comparable to the specifications of a short-term (Type II B or C) standard ECB used along MDT roadways. Future product development of the wool/straw ECB should focus on improving the shear strength at high flows so it meets all required Type III specifications

    Managing innovation uncertainties : a user-oriented knowledge typology

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    New product development processes are subject to uncertainties. These uncertainties can and should be managed to prevent innovations from failing. Uncertainties or knowledge deficits are addressed by deploying the right approaches, or learning activities to stimulate relevant inflows of knowledge. A typology of user-oriented knowledge types is key to overcome the reluctance of organizations towards multi-actor involvement and user-oriented learning activities. Here, we present a user-oriented knowledge typology departing from the end-user, embedded in a two-states framework (current state opposing future state). We discuss three iterations of the framework, including an expert review and real-world application as part of a workshop with intermediary organizations. When implemented, the framework enabled participants to identify and select learning activities enriching their innovation project. We want to underline our vision to transcend the gut-feeling and experience-driven allocation of learning activities, but instead strive towards optimal activity-selection based on the knowledge deficit at hand

    Ricardian political economy and the 'varieties of capitalism' approach : specialization, trade and comparative institutional advantage

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    The ‘varieties of capitalism’ approach offers key insights into the institutional embeddedness of economic experiences. It performs an important function in providing a conceptual framework for empirical analyses of the way in which the economy both manifests, and itself is a manifestation of, a whole series of different experiences. However, I argue that the Ricardian themes evident in Hall and Soskice’s Varieties of Capitalism limit the potential effectiveness of the empirical analyses that the approach makes possible. Within the context of this latent Ricardianism, the economy is understood to be international, and the important differences within the economic system are those between different national ‘models’. I expose such assumptions to critical scrutiny, both analytical and empirical, before offering the outline of an alternative basis on which to ground the ‘varieties of capitalism’ approach. In contrast to the major themes of the Ricardian tradition, I argue for an approach that is sensitive to the social relations of production, the study of which requires political economists to transcend the artificial reification of ‘the national’ as a discrete unit of economic analysis

    Which way to church renewal

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    Integrating Thermodynamics and Biology for Sustainable Product Lifecycle Design

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    The linkage between raw resources consumption and economic growth through product manufacture and disposal is creating an untenable pressure on the planet’s natural systems; therefore understanding and embracing the mechanics of the biology and physics of our context could lead to novel approaches in the design of human-built systems/products. Designers are, by active association, responsible for that pressure and much of the impact can be traced back to the early stages of the design process. For designers and engineers the main constraint is accessibility to knowledge of multiple and complex factors in easily digestible form when starting a project. Added to this is the possibility to transcend the realm of products and explore creative solutions throughout the entire life cycle, giving designers the opportunity to propose entire new business models and systems. This paper exposes the search for an intuitive soft modeling tool that considers some of these factors and inspires the innovation of business and systems innovation from a biophysical perspective. The aim of this tool is to enable the exploration of these factors in a playful intuitive way and relate these outcomes to the design of a business model operating within the principles of trophic levels. The first key question to the development of this approach has been: how does it work in nature? Organisms search for their food in other organisms and at the same time are the food of others; biomass and energy are transferred from one level to another, losses occur, higher qualities of energy are created and all is maintained in continuous cycles. The linear human production of goods can be rethought by taking into account this basic principle of thermodynamics and although this is not a technological problem, the relevant constrains need to be integrated for this approach to be feasible. These are from an economics origin: how to achieve a healthy business from a non-linear process? It is proposed that an analogy between natural and human systems: autotrophs = manufacturing, heterotrophs = distributors and consumers, their concentration and size, their possible combinations and their eventual business interpretations, is referred to as Trophic Economics. The envisioned tool will combine the exploration of the complex factors involved in the lifecycle of a product with the suggested Trophic Economics models. The outcome could be sketches of the possible boundaries and structures of new business and products, to be resolved later on the drawing board. In order to measure and keep track of the most relevant decisions, a designer must embrace tools like emergy accounting, MIPS and MI (Wuppertal Institute, 2002) used in related combination, plus indexes of CO2 emissions and relevant economic, social-demographic and ecosystems information about the countries involved in any give proposition of manufacture and use

    Ontological Stakeholder View: An Innovative Proposition

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    This article describes a theoretical way of understanding business enterprise, for what it is used the stakeholder theory as a theory of the firm. Thus, the purpose of this article is to show an innovative perspective called ontological perspective of stakeholders that relies on a phenomenological model where the subjective perspective of agents is the key, from a purely monetarist model to an economic, social and emotional value creation model, and from a deductive model of stakeholder interests to an inductive model. The main contributions are: add a new perspective to the different classifications made of stakeholder theory, avoid monetarist reductionism under the concept of value in a way that the manager takes into account all interconnected interests of stakeholders, and finally prioritize interests map instead of roles map without accepting the assumption that the role involves joint and no conflicting interests

    Alienation in Capitalism: Rediscovering Fulfillment

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    Many Americans are pessimistic about their country\u27s medium or long-term economic outlook. A century ago, Big Business was born as an economic force, but it has powerfully infiltrated the realm of politics now. The corporate scramble for natural resources has caused global disharmony and domestic economic conflict in the U.S. The capitalist system, which many have come to realize is unsustainable and oppressive, has thus come to fulfill some of the predictions made by earlier critics from Kierkegaard, Rousseau, to Marx. Each believed that a society which is forced to accommodate an oppressive system will inherently display alienation. That is, a person will begin to feel isolated from himself, unhappy (as amply documented in the growing happiness literature), and work without enthusiasm (resulting in lower productivity). Alienation is inextricably linked with all aspects of our lives; it occurs on a material level and we are forced to deal with it on a daily basis. How then does mankind overcome the difficulties posed by alienation? If not capitalism and democracy, then what? This paper discusses these issues in an attempt to give the reader a better understanding of how to overcome alienation and the problems/root causes associated with it
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