Waste classification

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  • Engineered barriers to isolate potentially harmful waste from humans and ecosystems have been used for over 35 years, and much has been written about them and their constituent components. However, few reports have provided an overall assessment of the performance of engineered barrier systems. The last broad assessment was conducted in 1995 (Rumer and Mitchell, 1995). Since that time, new materials and sensor technologies have been introduced and models to predict contaminant transport have improved.

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  • Ever since the time of Hippocrates attempts have been made to classify tuberculosis. Not until the 19th century was a clear clinical division made between acute and chronic forms (Fournet, 1839); later there was a tendency to describe these forms as ‘galloping consumption’ and ‘consumption’; to-day they can be accurately described, not only on clinical grounds, but pathologically, radiologically and pathogenetically as ‘malig nant primary’ and ‘advance secondary’. The first clinico-pathological classification was by Bard (1898, 1927).

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  • The wide proliferation of wireless communications unavoidably leads to the scarcity of frequency spectra. On one hand, wireless users become increasingly difficult to find available frequency bands for communications. On the other hand, many preallocated frequency bands are ironically under-utilized and thus the resources there are simply wasted. This situation leads to the introduction of cognitive radio, which was proposed in the last decade to address this dilemma.

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  • Depending on the purpose of the classification, various factors and criteria are considered (e.g. example the ecosystem functions, the end-use of the product, type of users, economic value, property regimes, management characteristics, etc.). However, none of the classification schemes are universal, and all of them have advantages or disadvantages, depending on the context of their application. Bearing in mind the FORVALUE objectives and its main accent on the non-market forest goods and services, four classification approaches, were considered and are describe in more detail.

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  • Natural resources- definition, characteristics and classification of natural resources. Historical development of natural resource economics, major natural resource issues, role of economics in natural resource planning, policy formulation and management. Common property resources. Time and spatial analysis in use of renewable and nonrenewable natural resources. Natural resource accounting. Natural resource scarcity, measures to mitigate resource scarcity, individual utility and the social welfare function.

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  • This guideline is not intended to be construed or to serve as a standard of care. Standards of care are determined on the basis of all clinical data available for an individual case and are subject to change as scientific knowledge and technology advance and patterns of care evolve. Adherence to guideline recommendations will not ensure a successful outcome in every case, nor should they be construed as including all proper methods of care or excluding other acceptable methods of care aimed at the same results.

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