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The International Union of Pure and Applied Chemistry (IUPAC) defines the term “speciation” as the distribution of an element amongst defined chemical species in a system, while the process leading to quantitative estimation of the content of different species is called speciation analysis. The chemical speciation of elements in natural waters and biological fluids is a key topic, essential for discussing the chemical reactivity of constituents in these systems. It is well understood that it is the chemical form of a metal or metalloids that determines its reactivity, lifetime, and fate in the environment. Chemical speciation now involves various sectors of the sciences, from chemistry to biology, biochemistry, and environmental sciences, since—as is well known—the total concentration, alone, of an inorganic or organic component (metal or ligand) in a multicomponent natural system (fresh water, sea water, biological fluids, soil, etc.) is insufficient for a comprehensive understand of its behavior in those contests.
The 6th FTRA International Conference on Computer Science and its Applications (CSA-14) will be held in Guam, USA, Dec. 17 - 19, 2014. CSA-14 presents a comprehensive conference focused on the various aspects of advances in engineering systems in computer science, and applications, including ubiquitous computing, U-Health care system, Big Data, UI/UX for human-centric computing, Computing Service, Bioinformatics and Bio-Inspired Computing and will show recent advances on various aspects of computing technology, Ubiquitous Computing Services and its application.
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Metal ions in the brain are a necessity as well as a poison. The presence of metal ions in the active sites of biological catalysts or metalloproteins and in the biological functioning of nucleic acids is very well documented and they are required for brain activity. On the other hand, metals are very effective in generating oxidative stress. This effect does not only play a role in immunology but also is the root of practically all neurodegenerative disorders by inducing disease via the death of neurons. Managing metal ions in the brain could therefore be an important strategy in the search for therapeutic agents used in the treatment of neurodegenerative diseases. This new title gives an overview to key topics in the area of metal ions in the brain. It focuses on the role of metal ions in neurological systems by describing their advantageous functions as well as their poisonous features. It is therefore of interest for scientists in biochemistry and biophysics, physiology, toxicology as well as for physicians focused on this topic.
* Joey F. George I was honored to be asked to open the VI Conference of the Italian Chapter of the Association for Information Systems (ItAIS), held in Olbia, on the Costa Smeralda of Sardinia, Italy, in October 2009. Over 90 research papers were presented over two days, and over 120 people attended the conference. Each day, five par- lel sessions featured papers on diverse information systems topics. Session themes included Information and Knowledge Management; Organizational Change and Impact of ICT; IS Quality, Metrics and Impact; E-Justice and Ethics of Information Systems; Information Systems Development and Design Methodo- gies; E-Services in Public and Private Sectors; Innovation Tran...
In recent years there have been great advances in the development of new nanomaterials. To facilitate the progress of new materials it is essential to understand the underlying principles at the nanoscale. Nanoscopic Materials provides an accessible overview of the physico-chemical and physical principles of nanomaterials including electronic structure, magnetic properties, thermodynamics of size dependence and phase transitions and dynamics of clusters and two-dimensional systems. This new edition has been fully revised and updated to reflect recent developments in new nanomaterials including graphene and core–shell structures, properties of nano-structured and intelligent surfaces as well as applications in catalysis and energy. Additional chapters cover the development of nucleation and crystal shape engineering; self-assembly and biomimetics for fabricating nanostructures. With helpful illustrations and summaries of key points in every chapter, this advanced textbook is ideal for graduate students of chemistry and materials science and researchers new to the field of nanoscience and nanotechnology.
A comprehensive overview of the molecular nature of metal ions in nutrition, toxicology and pharmacology.
This book highlights recent progress and challenges in size-controlled synthesis, size-dependent properties, characterization and applications of metal nanoclusters.
'This is the first account in English of the making of Italian nationhood from the perspective of constitutional history. It is also the first to consider the role that the House of Savoy played in this process. Bringing together influential experts in the field, the collection covers the evolution of the Italian constitution from Russian diplomacy’s little-known planning of the Risorgimento to the monarchy’s demise after its clashes with fascism. Combining systematic coverage with original research, the volume includes such varied themes as the king’s role in the Italian wars of independence, the Italian peninsula’s forgotten charters of 1848, and the story of the ephemeral building that housed the first Italian parliament. Contributors are: Carolina Armenteros, Andrea Ungari, Paolo Colombo, Frans Willem Lantink, Christian Satto, Giulio Stolfi, Valentina Villa, Tommaso Zerbi, and Romano Ferrari Zumbini.