Полный вариант заголовка: «Researches in the highlands of Turkey : including visits to mounts Ida, Athos, Olympus, and Pelion, to the Mirdite Albanians, and other remote tribes: with notes on the ballads tales, and classical superstitions of the modern Greeks : in 2 vol. T. 4. L'Économie rurale de Columella».
Under the aegis of the African Energy Policy Research Network (AFREPREN) Capacity Building Theme Group, a regional study and four country studies (Zimbabwe, Mauritius, Ethiopia, and South Africa) addressed the capacity building question in the African power sector. This volume presents the findings of the studies. The studies analyze issues of manpower recruitment, training, and retention in national power utilities. They also highlight the challenges and implications of capacity building initiatives in a reforming electricity industry and propose innovative options for capacity building in the region's power sector.
The Evolution of Plant Form is an exceptional new volume in Wiley-Blackwell’s highly successful and well established Annual Plant Reviews. Written by recognised and respected researchers, this book delivers a comprehensive guide to the diverse range of scientific perspectives in land plant evolution, from morphological evolution to the studies of the mechanisms of evolutionary change and the tools with which they can be studied. This title distinguishes itself from others in plant evolution through its synthesis of these ideas, which then provides a framework for future studies and exciting new developments in this field. The first chapter explores the origins of the major morphological innovations in land plants and the following chapters provide an exciting, in depth analysis of the morphological evolution of land plant groups including bryophytes, lycophytes, ferns, gymnosperms and angiosperms. The second half of the book focuses on evolutionary studies in land plants including genomics, adaptation, development and phenotypic plasticity. The final chapter provides a summary and perspective for future studies in the evolution of plant form. The Evolution of Plant Form provides essential information for plant scientists and evolutionary biologists. All libraries and research establishments, where biological and agricultural sciences are studied and taught, will find this important work a vital addition to their shelves.
A comprehensive overview of biodegradable polymers, covering everything from synthesis, characterization, and degradation mechanisms while also introducing useful applications, such as drug delivery systems and biomaterial-based regenerative therapies. An introductory section deals with such fundamentals as basic chemical reactions during degradation, the complexity of biological environments and experimental methods for monitoring degradation processes. The result is a reliable reference source for those wanting to learn more about this important class of polymer materials, as well as scientists in the field seeking a deeper insight.
Organic photovoltaics (OPV) are a new generation of solar cells with the potential to offer very short energy pay back times, mechanical flexibility and significantly lower production costs compared to traditional crystalline photovoltaic systems. A weakness of OPV is their comparative instability during operation and this is a critical area of research towards the successful development and commercialization of these 3rd generation solar cells. Covering both small molecule and polymer solar cells, Stability and Degradation of Organic and Polymer Solar Cells summarizes the state of the art understanding of stability and provides a detailed analysis of the mechanisms by which degradation occurs. Following an introductory chapter which compares different photovoltaic technologies, the book focuses on OPV degradation, discussing the origin and characterization of the instability and describing measures for extending the duration of operation. Topics covered include: Chemical and physical probes for studying degradation Imaging techniques Photochemical stability of OPV materials Degradation mechanisms Testing methods Barrier technology and applications Stability and Degradation of Organic and Polymer Solar Cells is an essential reference source for researchers in academia and industry, engineers and manufacturers working on OPV design, development and implementation.
Dropping into the unknown on a rubber raft, hurled and beaten against rocks and cliff walls through narrow canyon chutes, only to round a blind bend, go vertical on a 10-foot standing wave, and flip over backwards into a seething, deafening cauldron of near-freezing whitewater Such is the life of the brave souls who dare commit themselves to ride the backs of surging untried rivers. Captured vividly in the words of the adventurers and original photography from the expeditions, First Descents brings together the world's most respected river explorers. Including true tales from Richard Bangs, Yvon Chouinard, Payson Kennedy, Jeff Rennicke, David Roberts, Royal Robbins, Tao Berman, John Yost, and other adventurers, this newly revised and expanded version of the classic released in 1989 is more spine tingling than ever. Readers will travel to exotic, rugged, and fearful places such as Upper Canyon Johnson Falls in Canada, the Pandi River in Papua New Guinea, the Ikopa River in Madagascar, the ever-challenging Niagara Gorge in New York, the Colorado River in Arizona, the Baro River in Ethiopia, the Indus in Pakistan, and the Kongakut in Alaska.