89,738 research outputs found

    Designing Dendrimers

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    In this book, top-leading scientists in the field report their up-to-date contributions covering a broad range of applications and suggesting future possibilities. The book consists of 16 chapters, which are not grouped into sections, but are somehow logically ordered. The first chapters provide an introductory view - even including perspectives for alternative approaches to the dendrimer realm - mainly centered on synthetic methods/approaches. The following ones are more and more applicative-oriented, exploring electrochemically-based applications, photochemical energy conversion, single-molecule detection, biomedical applications, and future perspectives

    Accessibility of GI for Public Participation: A Danish-Italian comparative study

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    Accessibility of GI for Public Participation A Danish-Italian comparative study Mette Arleth1 and Michele Campagna21Ph.D., Aalborg University – Department of Development and Planning, Fibigerstraede 11, dk9220 Aalborg Oest, Denmark [email protected] 2Ph. D., Università di Cagliari – Dipartimento di Ingegneria del Territorio, Piazza d’Armi 16 – 09123 Cagliari, Italy, [email protected] SUMMARY This paper reports an ongoing comparative study on the accessibility of Geographic Information at public authorities’ websites in Denmark and Italy. The purpose of the study is twofold; to give an idea of the latest development and diffusion of GI on public authorities websites, and to identify critical factors for success or failure of the applications. First part of the study therefore consists of a mapping of the level of accessibility of GI in the two countries as a comparative analysis. The focus of the mapping is mainly on the use of geographic information as support to citizens’ involve..

    Insect watching: in campagna e città

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    Importanza della conoscenza degli insetti in campagna

    Photochemistry and Photophysics of Coordination Compounds: Overview and General concepts

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    Investigations in the field of the photochemistry and photophysics of coordination compounds have proceeded along several steps of increasing complexity in the last 50 years. Early studies on ligand photosubstitution and photoredox decomposition reactions of metal complexes of simple inorganic ligands (e.g., NH3, CN – ) were followed by accurate investigations on the photophysical behavior (luminescence quantum yields and lifetimes) and use of metal complexes in bimolecular processes (energy and electron transfer). The most significant differences between Jablonski diagrams for organic molecules and coordination compounds are illustrated. A large number of complexes stable toward photodecomposition, but capable of undergoing excited-state redox processes, have been used for interconverting light and chemical energy. The rate constants of a great number of photoinduced energy- and electron-transfer processes involving coordination compounds have been measured in order to prove the validity and/or extend the scope of modern kinetic theories. More recently, the combination of supramolecular chemistry and photochemistry has led to the design and construction of supramolecular systems capable of performing light- induced functions. In this field, luminescent and/or photoredox reactive metal complexes are presently used as essential components for a bottom-up approach to the construction of molecular devices and machines. A few examples of molecular devices for processing light signals and of molecular machines powered by light energy, based on coordination compounds, are briefly illustrated

    Camaiore (LU). Insediamento fortificato di Montecastrese: campagna di scavo 2008

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    Relazione della campagna di scavo 2008 sul sito dell'insediamento fortificato di Montecastres

    Roma e la sua campagna nelle prime rappresentazioni cinematografiche

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    Il saggio ripercorre la storia del cinema "romano", dalle origini agli anni Settanta, con una particolare attenzione alle pellicole di sfondo rurale o ambientate nel Lazio
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