Polyoxometalates / / edited by Greta Ricarda Patzke and Pierre-Emmanuel Car

• Record Nr.: UNINA9910765775303321
• Pubbl/distr/stampa: Basel : , : MDPI, , 2016
• ISBN: 3-03842-162-6
• Descrizione fisica: 1 online resource (254 pages)
• Disciplina: 546.3
• Soggetti: Electrochemistry; Catalysis; Polyoxometalates
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Nota di contenuto: William H. Casey, Marilyn M. Olmstead, Caitlyn R. Hazlett, Chelsey Lamar and Tori Z. Forbes -- Merinda R. Healey, Stephen P. Best, Lars Goerigk and Chris Ritchie -- Diana M. Fernandes, Marta Nunes, Ricardo J. Carvalho, Revathi Bacsa, Israel-Martyr Mbomekalle, Philippe Serp, Pedro de Oliveira and Cristina Freire -- Pavel A. Abramov, Maxim N. Sokolov and Cristian Vicent -- Aroa Pache, Santiago Reinoso, Leire San Felices, Amaia Iturrospe, Luis Lezama and Juan M. Gutiérrez-Zorrilla -- Vincent Goovaerts, Karen Stroobants, Gregory Absillis and Tatjana N. Parac-Vogt -- Nancy Watfa, Sébastien Floquet, Emmanuel Terazzi, William Salomon, Laure Guénée, Kerry Lee Buchwalder, Akram Hijazi, Daoud Naoufal, Claude Piguet and Emmanuel Cadot -- Masooma Ibrahim, Bassem S. Bassil and Ulrich Kortz -- Olivier Oms, Tarik Benali, Jérome Marrot, Pierre Mialane, Marin Puget, Hélène Serier-Brault, Philippe Deniard, Rémi Dessapt and Anne Dolbecq -- Yuji Kikukawa, Kazuhiro Ogihara and Yoshihito Hayashi -- Patricio Hermosilla-Ibáñez, Karina Muñoz-Becerra, Verónica Paredes-García, Eric Le Fur, Evgenia Spodine and Diego Venegas-Yazigi -- Sara Goberna-Ferrón, Joaquín Soriano-López and José Ramón Galán-Mascarós -- Loïc Parent, Pedro de Oliveira, Anne-Lucie Teillout, Anne Dolbecq, Mohamed Haouas, Emmanuel Cadot and Israël M. Mbomekallé -- Tadaharu Ueda, Yuriko Nishimoto, Rie Saito, Miho Ohnishi and Jun-ichi Nambu -- Simone Piccinin and Stefano Fabris.
• Sommario/riassunto: Polyoxometalates (POMs), known since the mid-18th century, have fascinated generations of researchers and continue to attract promising young scientists to date. Ever since the first pioneering investigations into the manifold structures and properties of POMs, polyoxometalate chemistry emerged as an independent and highly productive area of research, with constant and exciting new developments from an exceptionally wide range of scientific disciplines, such as synthetic/structural chemistry, biology, physics and theoretical chemistry. Indeed, polyoxometalates as highly versatile transition metal oxo-cluster materials offer virtually endless options for future applied devices. They excel through their: wide compositional and structural diversity, giving rise to flexible tuning of electronic properties, versatile redox properties, chemical stability and robustness. Among this growing family of oxo-clusters, two POM classes, namely transition metal substituted polyoxometalates (TMSPs) and lanthanide substituted polyoxometalates (LnSPs), are currently attracting special interest due to their promising role in current competitive research areas, e.g., water splitting, catalysis, magnetism, electronic materials and bio-medical applications. This Special Issue focuses on the most recent advances in polyoxometalate chemistry covering synthetic methods, mechanistic insights and application perspectives in photocatalysis (water splitting), organic catalysis, magnetism, bio-medicine, electrochemistry and other currently relevant areas.

Telephonie et mobilite au Mali / Naffet Keita ; en collaboration avec Seydou Magassa, Boukary Sangare et Youssouf Ag Rhissa

• Record Nr.: UNINA9910961442003321
• Autore: Keita Naffet
• Pubbl/distr/stampa: Baltimore, Maryland : , : Project Muse, , 2015; Baltimore, Md. : , : Project MUSE, , 2015; ©2015
• ISBN: 9789956792689; 9956792683
• Edizione: [1st ed.]
• Descrizione fisica: 1 online resource (187 p.)
• Disciplina: 384
• Soggetti: Telecommunication - Mali; Mobile communication systems - Mali; Cell phons - Social aspects - Mali; Electronic books.
• Lingua di pubblicazione: Francese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: Description based upon print version of record.
• Nota di bibliografia: Includes bibliographical references (pages s171-175).
• Nota di contenuto: Introduction generale -- Histoire des techniques modernes de telecommunications au Mali -- Marche de la telephonie mobile: Des niches ou des bulles! -- Marges et trappes: Entre desir de changement et illusion de mobilite
• Sommario/riassunto: This book starts from the premise that the advent of mobile telephony in Mali coincided with economic liberalization, internationalization of trades and new balances in social spaces such as the Bamako market and the Center and Northern regions of Mali already under stress and / or major reconfigurations. These have resulted in increasing the mobility made both inside and outside the country (migrants and displaced persons, etc.); the appearance of new figures of businessmen, entrepreneurs, traders and changing trade routes. However, these mobilities produce original territories circulations and various exchanges that can not be understand in the exclusive setting of the local society. Perceived as pens or territorial ghettos, they are also anchors in cities. Centralities invisible and often confused with other businesses, these territories are also internalized operators ; forming networks between cities and the countryside. The investigated sites are representative of different scales: links, networks and territories across the Sahel and Sahara, and lastly of the territory enclosed within national boundaries, and finally across small parts of that territory, Douentza and the edges of the Sahara, the region of Kidal. In all cases it came to study in parallel, the social structure, the nature of territories or networks and actors that produce them, their links with urban areas, institutions, groups of actors embedded in these territories and movements registered by the use and ownership of the phone.