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Biologists, physicists and engineers are working together to make ever-smaller devices capable of studying the properties of tiny biological particles. Using nano-electrodes, encapsulated in a device with dimensions of a few hundred millionths of a metre, it is now possible to manipulate and trap single nano-scale biological particles such as a virus. The precisely controlled electric fields generated within the device can be used to trap single particles in field-cages or separate different viruses from each other, for example. This book is an introduction to the science behind the new technology, and explains how the electric field interacts with the particles. It describes how these micro-systems are manufactured and how they are used to study the electrical properties of the particles.
Fundamentals and Sensing Applications of 2D Materials provides a comprehensive understanding of a wide range of 2D materials. Examples of fundamental topics include: defect and vacancy engineering, doping and advantages of 2D materials for sensing, 2D materials and composites for sensing, and 2D materials in biosystems. A wide range of applications are addressed, such as gas sensors based on 2D materials, electrochemical glucose sensors, biosensors (enzymatic and non-enzymatic), and printed, stretchable, wearable and flexible biosensors. Due to their sub-nanometer thickness, 2D materials have a high packing density, thus making them suitable for the fabrication of thin film based sensor devi...
An authoritative dictionary of the meanings and derivations of Welsh place-names. The first of its kind in Wales, this volume deals with most of the place-names of Wales as well as prominent features of the landscape. Also includes an invaluable glossary of the place-name elements. First published in November 2007.
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Cyfrol ddarluniadol llawn a chynhwysfawr yn dangos ôl ymchwil trylwyr yn cynnwys cyfoeth o wybodaeth am hanes adeiladau o darddiad canol oesol ym Maesyfed. Dros 600 llun du-a-gwyn, 5 llun lliw a 15 map. -- Cyngor Llyfrau Cymru
The Welsh princes were one of the most important ruling elites in medieval western Europe. This volume examines their behaviour, influence and power in a period when the Welsh were struggling to maintain their independence and identity in the face of Anglo-Norman settlement. From the mid-eleventh century to the end of the thirteenth, Wales was profoundly transformed by conquest and foreign 'colonial' settlement. Massive changes took place in the political, economic, social and religious spheres and Welsh culture was significantly affected. Roger Turvey looks at this transformation, its impact on the Welsh princes and the part they themselves played in it. Turvey's survey of the various aspects of princely life, power and influence draws out the human qualities of these flesh and blood characters, and is written very much with the general reader in mind.
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Essays exploring interrelated strands of material ecologies, past and present British politics, and the act of writing, through a rich variety of case studies.Much as the complexities of climate change and the Anthropocene have queried the limits and exclusions of literary representation, so, too, have the challenges recently presented by climate activism and intersectional environmentalism, animal rights, and even the power of material forms, such as oil, plastic, and heavy metals. Social and protest movements have revived the question of whether there can be such a thing as an activist ecocriticism: can such an approach only concern itself with consciousness, or might it politicise literar...