104,114 research outputs found

    Pollini e piante allergeniche: fenologia e fitogeografia

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    Viene illustrato il comportamento fenantesico e la corologia (areale, fascia fitoclimatica, habitat) dei principali taxa di piante che producono polline allergogeno in Italia

    Direct uses of geothermal energy in Italy 2005-2009: update report and perspectives

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    Italy is widely known for the strong expertise in field of geothermal electricity production. Despite the presence of such industrial know how, previous analysis reveal a huge untapped potential in geothermal direct uses. This paper, based on qualitative and quantitative information and expert evaluations, aims at giving an overview of market achievements in the last five years. The situation of direct uses of geothermal heat in Italy, compared with the situation of 2005, appears widely evolved and is rapidly moving to reach significant targets set for 2010. The global growth of direct use of geothermal heat at the end of 2009 in Italy is expected to reach an amount of 1.2 times more than the values of the previous update: 850 MWth and 10,000 TJ compared to UGI-2006 values of 650 MWth and 8000 TJ. This larger contribution, in terms of installed power, is mainly due to the wide development, principally in northern areas of Italy, of geothermal district heating (5-15 MWth unit power) and, in terms of numbers of installations, to single household applications, which are widely applying heating & cooling equipment with geothermal source of small unit power. Analyzing the heating and cooling systems in civil buildings, and in particular the ones that use middle depth or shallow geothermal resources, a relevant impulse to the growth of geothermal industry has certainly been obtained by the large increase of geothermal heat pumps systems, fed by ground heat with horizontal or vertical exchanger, or by hot water extracted with shallow depth wells both in open or closed loops. At the moment, the number of companies which provide HPGS in Italy is growing very fast and thus, in the near future, a continuous growth of the geothermal direct uses is foreseen. The market development is driven by challenging applications as the ones, characterized by a high level of technology integration, in progress in Grado (Udine) and Milan. In the past five years, the geothermal direct uses reached a greater interest than in the past also from the designers' community. Hence, as a consequence of the market dynamics, the unitary cost of the geothermal installations is decreasing and, at the same time, the need of new and specific regulations, both regarding performance and environmental preservation, is increasing. The lack of shared databases of authorized plants and of shared rules for their classification represents the main barrier for further research. For this reason, new investigation and acquisition of detailed multidisciplinary information are required so as to support the development of public policies and private strategies

    Direct uses of geothermal energy in Italy 2005-2009: update report and perspectives

    No full text
    Italy is widely known for the strong expertise in field of geothermal electricity production. Despite the presence of such industrial know how, previous analysis reveal a huge untapped potential in geothermal direct uses. This paper, based on qualitative and quantitative information and expert evaluations, aims at giving an overview of market achievements in the last five years. The situation of direct uses of geothermal heat in Italy, compared with the situation of 2005, appears widely evolved and is rapidly moving to reach significant targets set for 2010. The global growth of direct use of geothermal heat at the end of 2009 in Italy is expected to reach an amount of 1.2 times more than the values of the previous update: 850 MWth and 10,000 TJ compared to UGI-2006 values of 650 MWth and 8000 TJ. This larger contribution, in terms of installed power, is mainly due to the wide development, principally in northern areas of Italy, of geothermal district heating (5-15 MWth unit power) and, in terms of numbers of installations, to single household applications, which are widely applying heating & cooling equipment with geothermal source of small unit power. Analyzing the heating and cooling systems in civil buildings, and in particular the ones that use middle depth or shallow geothermal resources, a relevant impulse to the growth of geothermal industry has certainly been obtained by the large increase of geothermal heat pumps systems, fed by ground heat with horizontal or vertical exchanger, or by hot water extracted with shallow depth wells both in open or closed loops. At the moment, the number of companies which provide HPGS in Italy is growing very fast and thus, in the near future, a continuous growth of the geothermal direct uses is foreseen. The market development is driven by challenging applications as the ones, characterized by a high level of technology integration, in progress in Grado (Udine) and Milan. In the past five years, the geothermal direct uses reached a greater interest than in the past also from the designers' community. Hence, as a consequence of the market dynamics, the unitary cost of the geothermal installations is decreasing and, at the same time, the need of new and specific regulations, both regarding performance and environmental preservation, is increasing. The lack of shared databases of authorized plants and of shared rules for their classification represents the main barrier for further research. For this reason, new investigation and acquisition of detailed multidisciplinary information are required so as to support the development of public policies and private strategies.Italy is widely known for the strong expertise in field of geothermal electricity production. Despite the presence of such industrial know how, previous analysis reveal a huge untapped potential in geothermal direct uses. This paper, based on qualitative and quantitative information and expert evaluations, aims at giving an overview of market achievements in the last five years. The situation of direct uses of geothermal heat in Italy, compared with the situation of 2005, appears widely evolved and is rapidly moving to reach significant targets set for 2010. The global growth of direct use of geothermal heat at the end of 2009 in Italy is expected to reach an amount of 1.2 times more than the values of the previous update: 850 MWth and 10,000 TJ compared to UGI-2006 values of 650 MWth and 8000 TJ. This larger contribution, in terms of installed power, is mainly due to the wide development, principally in northern areas of Italy, of geothermal district heating (5-15 MWth unit power) and, in terms of numbers of installations, to single household applications, which are widely applying heating & cooling equipment with geothermal source of small unit power. Analyzing the heating and cooling systems in civil buildings, and in particular the ones that use middle depth or shallow geothermal resources, a relevant impulse to the growth of geothermal industry has certainly been obtained by the large increase of geothermal heat pumps systems, fed by ground heat with horizontal or vertical exchanger, or by hot water extracted with shallow depth wells both in open or closed loops. At the moment, the number of companies which provide HPGS in Italy is growing very fast and thus, in the near future, a continuous growth of the geothermal direct uses is foreseen. The market development is driven by challenging applications as the ones, characterized by a high level of technology integration, in progress in Grado (Udine) and Milan. In the past five years, the geothermal direct uses reached a greater interest than in the past also from the designers' community. Hence, as a consequence of the market dynamics, the unitary cost of the geothermal installations is decreasing and, at the same time, the need of new and specific regulations, both regarding performance and environmental preservation, is increasing. The lack of shared databases of authorized plants and of shared rules for their classification represents the main barrier for further research. For this reason, new investigation and acquisition of detailed multidisciplinary information are required so as to support the development of public policies and private strategies

    PLASMA-EXCHANGE IN THE TREATMENT OF ACUTE SYSTEMIC LUPUS-ERYTHEMATOSUS WITHOUT CIRCULATING IMMUNE-COMPLEXES

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    One patient affected by systemic lupus erythematosus with recurrent phlebothrombosis and peripheral neuropathy is described. False positive VDRL test, anticardiolipin antibodies, and high titres of antinuclear antibodies were present. Circulating immune complexes were not found. The effect of plasma exchange on clinical symptoms and on serological abnormalities was rapid and striking

    Bibliographie Hilarion G. Petzold 1958 – 2009 mit Anhang als Einführung

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    Dieses Archiv enthält die Gesamtbibliographie der Werke des Autors nebst einiger Texte „Über H. G. Petzold“ im Schlussteil der Bibliographie sowie einen Anhang mit einer Einführung in die Architektur des Werkes in seinem wissenslogischen Aufbau als Ausarbeitung seines „Tree of Science Modells“ (2007).This archive contains the complete bibliography of the author and some texts about H. G. Petzold, moreover an epilogue with an introduction to the architecture of the works in its epistemological structure and composition and as an elaborations of Petzold’s „Tree of Science Modell (2007).https://www.fpi-publikation.de/polyloge/01-2009-petzold-h-g-gesamtbibliographie-h-g-petzold-1958-2009-updating-november2009/peerReviewedpublishedVersio

    Dispelling the Myths Behind First-author Citation Counts

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    We conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more sophisticated methods

    Author-springer.pdf

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