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Photochromism is simply defined as the light induced reversible change of colour. The field has developed rapidly during the past decade as a result of attempts to improve the established materials and to discover new devices for applications.As photochromism bridges molecular, supramolecular and solid state chemistry, as well as organic, inorganic and physical chemistry, such a treatment requires a multidisciplinary approach and a broad presentation. The first edition (1990) provided an enormous amount of new concepts and data, such as the presentation of main families based on the pericyclic reaction mechanism, the review of new families, some bimolecular photocycloadditions and some promi...
This is the most comprehensive and readable book on urban geography in the array of contemporary literature on the subject.
With contributions from over 70 international experts, this reference provides comprehensive coverage of plant physiological stages and processes under both normal and stressful conditions. It emphasizes environmental factors, climatic changes, developmental stages, and growth regulators as well as linking plant and crop physiology to the production of food, feed, and medicinal compounds. Offering over 300 useful tables, equations, drawings, photographs, and micrographs, the book covers cellular and molecular aspects of plant and crop physiology, plant and crop physiological responses to heavy metal concentration and agrichemicals, computer modeling in plant physiology, and more.
Discussing the concept of mobility at large and that of spatial mobilities in particular, this book makes the case for daily spatial mobilities as a distinct type of mobility and explores this concept from a variety of perspectives. Daily mobilities, such as for commuting, shopping, social ties, information, banking, news, studies, business meetings, etc. are typified by their being two-way mobilities, frequently performed, constituting a major element of our daily routine lives, and inclusive of both corporeal and/or virtual mobilities. Outlining his argument for daily spatial mobility, author Aharon Kellerman focuses on needs and triggers for daily mobilities, on levels of personal mobility and personal autonomy in daily mobilities and on potential mobilities leading to practiced ones. The concept is further explored using three major types of daily mobility, terrestrial, virtual and aerial and three major spatial elements; urban spatial reorganization in the information age, mobility terminals, namely bus, metro, and railway stations as well as airports, and global opportunities through daily mobilities, notably for users of the Internet.
Reprint of a reference book first published in 1987. Lavishly illustrated, it contains detailed descriptions of all the important weeds of Australia. Suitable for primary producers, students, agricultural advisers and research workers.
Today, the issue of environmental emissions is more important than ever before. Air pollution with particulates, soot, carbon, aerosols, heavy metals, and so on is causing adverse effects on human health as well as the environment. This book presents new research and findings related to environmental emissions, pollution, and future sustainability. Written by experts in the field, chapters cover such topics as health effects, emission monitoring and mitigation, and emission composition and measurement.
Calcium signalling occupies a preeminent position in the signal transduction system of the cell by virtue of its participation in a wide range of physiological functions together with the biological events associated with genetic expression, cell proliferation and apoptosis, as well as cell differentiation and morphogenesis. It is an important feat