997 resultados para heritage destruction


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Of what value is examining creative destruction and diffusion theories that Schumpeter introduced to the world? A variety of factors causes economic changes, but he argued that entrepreneurial innovation was central. Today, even those who create new products and processes hardly know who Schumpeter was, or what he did. It is difficult to believe that his contributions are not more popularly recognized today. Schumpeter's theories are as valuable and important within the contemporary environment as they were when he wrote about them over four score or seventy years ago.

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Building up an image of Russophobic countries is currently instrumental in shaping a neo-imperial political identity among the citizens of the Russian Federation, mobilising them in the face of real or alleged threats, and also serves as a form of restoring psychological comfort to them in the face of the failure of the Kremlin’s actions (as in Ukraine, for example). The mythologised stereotype of Russophobic countries also remains a crowning argument and a simple explanation for the ongoing tensions in relations between Russia and the West.

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Data published by the Federal Aviation Administration (F.A.A.) in its "Annual report on the criminal acts against civil aviation" indicates that in the year 1960, there have been fifteen attacks on board planes leaving 286 dead; 44 in the year 1970 with 650 dead (mostly hijackings); and 26 in the 1980s leaving 1207 dead. In the 1970s, the record is established by the year 1976 (168 dead).The three years - 1985 (390), 1988 (287), and 1989 (278) - were more deadly than the 1960s all together. These casualties were largely provoked by IEDs. Since the end of 1980 - the deadliest decade, with the exception of September 11, 2001 -, it is however a rare practice. The reasons for the decline in big and politically motivated hijackings were varied. One could have been the improvement of the effectiveness of the safety response by States, airports and companies. The improvised explosive device (I.E.D.) posed a serious threat to the civil aviation industry in the 1980s. Since the 1990s, the jihadi networks have regularly tried to target aircrafts using various types of IEDs.

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Background The improvement of energy efficiency in buildings is widely promoted as a measure to mitigate climate change through the reduction of CO2 emissions. Thermal regulations worldwide promote it, for both new and existing buildings. Among the existing stock, traditional and historic buildings pose the additional challenge of heritage conservation. Their energy efficiency upgrade raises the risk of provoking negative impacts on their significance. Aims and Methodology This research used an approach based on impact assessment methodologies, defining an inital baseline scenario for both heritage and energy, from which the appropriate improvement solutions were identified and assessed. The measures were dynamically simulated and the results for energy, CO2, cost and comfort compared with the initial scenario, and then being further assessed for their heritage impact to eventually determine the most feasible solutions. To test this method, ten case studies, representative of the identified typological variants, were selected among Oporto’s traditional buildings located in the World Heritage Site. Findings and Conclusions The fieldwork data revealed that the energy consumption of these dwellings was below the European average. Additionally, the households expressed that their home comfort sensation was overall positive. The simulations showed that the introduction of insulation and solar thermal panels were ineffective on these cases in terms of energy, cost and comfort. At the same time, these measures pose a great risk to the buildings heritage value. The most efficient solutions were obtained from behavioural changes and DHW retrofit. The study reinforced the idea that traditional buildings performed better than expected and can be retrofitted and updated at a low-cost and with passive solutions. The use of insulation and solar panels should be disregarded.

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Rates of organic matter (OM) transformation within the production-destruction cycle of the White Sea were estimated on the basis of measured activity values of redox enzymes of the electron transport system and of hydrolytic enzymes (phosphatase and protease). It was found that OM oxidation processes were the most intensive in the Kandalaksha Bay, while minimum oxidation rates were characteristic of central parts of the Dvina and Onega bays. It was revealed that the highest rates of phosphate mineralization were characteristic of the central part of the sea and near-mouth areas of the Onega and Kandalaksha bays, with the lowest rates in the Dvina Bay. During the period of intense primary production when resources of inorganic phosphorus were practically depleted, high rates of phosphate regeneration were observed. It was shown that populations of micro- and zooplankton in the White Sea were characterized by low activation energies of the principal metabolism reactions (3-6 kcal/mol), which allowed these populations to provide exchange intensity comparable to that of inhabitants of warm waters during all the seasons.

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Mode of access: Internet.