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Photoreceptors and Light Signalling
This book offers comprehensive coverage of the most important areas in photoreceptors and light signalling. Photoreceptors enable most species to sense not only the presence of light but also the information, such as irradiance, colour or spectral distribution, direction and polarization of light. They are vital, therefore, in providing organisms with energy and information about their surroundings, such as day and night cycles. This book covers the range of photoreceptors that have been discovered to date and the broad range of methods used when researching how they operate, including: action spectroscopy; methods for protein purification; the whole range of molecular biological and genetic methods; and numerous spectroscopic methods, from absorption and fluorescence spectroscopy to X-ray diffraction, used for solving the structure of photoreceptors. Written by leading experts in the field, Photoreceptors and Light Signalling provides the reader with the most recent results and research. This book will be valued by a wide-range of readers, including students of photochemistry, photobiology, biology, chemistry and physics and other professionals in academia.
Vision
The light sense is conceivably the key sense in both the animal and the plant kingdom. Vision research, undoubtedly a fast-growing field, is providing impressive results OCo thanks to modern theoretical and methodological advances. The approach of biophysics and neuroscience seems to be of great benefit and, for this reason, the present book gives an outline of recent acquisitions and updated advanced methods concerning this approach. Visual mechanisms and processes are analysed at several (molecular, cellular, integrative, computational and cognitive) levels by different methodologies (from molecular biology to computation) applied to different living models (from protists to humans, via in...
A Companion to the Hanseatic League
The Companion to the Hanseatic League discusses the importance of the Hanseatic League for the social and economic history of pre-modern northern Europe. Established already as early as the twelfth century, the towns that formed the Hanseatic League created an important network of commerce throughout the Baltic and North Sea area. From Russia in the east, to England and France in the west, the cities of the Hanseatic League created a vast northern maritime trade network. The aim of this volume is to present a “state” of the field English-language volume by some of the most respected Hanse scholars. Contributors are Mike Burkhardt, Ulf Christian Ewert, Rolf Hammel-Kiesow, Donald J. Harreld, Carsten Jahnke, Michael North, Jürgen Sarnowsky and Stephan Selzer.
The Paper Trade in Early Modern Europe
This book attends to the most essential, lucrative, and overlooked business activity of early modern Europe: the trade of paper, uncovering its hotspots and trade routes, usual dealings, and recycling economies.
Structures and Functions of Retinal Proteins
The aim of the 5th International Conference on Retinal Proteins was to present the findings of the interdisciplinary fields where photochemical, biophysical, molecular biology and physiological aspects are intimately linked. This title covers nearly all the presentations given during this symposium.
Degenerative Retinal Diseases
Since 1984, we have organized Satellite Symposia on Retinal Degenerations that are held in conjunction with the biennial International Congress of Eye Research. The timing and location of our Retinal Degeneration Symposia have all owed scientists and clinicians from around the world to convene and present their exciting new findings. The symposia have been arranged to allow ample time for discussions and one-on-one interactions in a relaxed atmos phere, where international friendships and collaborations could be established. The II International Symposium (also known as the Sendai Symposium on Retinal Degeneration) was held in 1986 in Sendai, Japan, on the occasion of the retirement of Kat s...
Photostasis and Related Phenomena
Over the weekend of 21-23 February 1997, a small group gathered in Tallahassee, Florida, at the invitation of Ted Williams, to discuss "photo stasis and related topics." The majority of participants were former students and colleagues of Ted's, but an occasional outsider such as myself was generously included. The papers presented there are collected in this volume. The theory of photo stasis was first outlined in a landmark paper by John Penn and Ted, published in 1986 in Experimental Eye Research. They provided compelling data showing that, in the albino rat eye, levels of rhodopsin, outer-segment length, rhodopsin regeneration rate, and even, perhaps, rhodopsin packing density all depend ...
The Molecular Mechanism of Photoreception
very important, especially the comparison of vertebrate and invertebrate transduction mechanisms. The workshop was very successful and the outcome of the discussions proved it worth the effort. To no small extent has that success been made possible by Dr. Silke Bernhard who with a combination of authority and charm together with her extremely efficient and dedicated staff organized this workshop, providing the conditions and framework for a scientific debate of outstanding quality in a friendly and pleasant atmosphere. The great majority of participants were also very committed to making this workshop successful. Besides the reports of the four discussion groups, this publication contains th...
The Fish Lands
The late medieval German trade with the North Atlantic islands, in the margins of the Hanseatic trade network, has received only limited scholarly attention. Merchants from predominantly Hamburg and Bremen established direct trade relations with these islands in the late 15th century, and managed to control the international trade with Iceland, the Faroes and Shetland for much of the 16th century. However, the Hanseatic commercial infrastructure was absent in the North Atlantic, which forced these merchants to develop new trade strategies. Besides a critical re-evaluation of the economic and political conditions, this volume offers a comprehensive study of the organisation of the trade and the methods used to establish and maintain networks between islanders and German merchants. Moreover, it analyses the role and socio-economic position of the communities of merchants with the North Atlantic in their home towns. The book shows that the North Atlantic trade was anything but insignificant. It was a dynamic and integral part of the trade network of the northern German cities, and its study is highly relevant for the economic history of Northern Europe.
