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Proceedings of the Second International Symposium on Cladocera, Tatranska Lomnicá, Czechoslovakia, September 13-20, 1989
Cladocerans are increasingly used in many fields of science and this volume covers a wide range of such topics. Cladocerans have a strong influence on freshwater ecosystems and in some aspects they can be used in biomanipulation projects. Their fast and easy asexual reproduction offers a wide range of possibilities for studies in many fields of research: genetics, ecology, ecotoxicology, etc. In some ways they are the Drosophila of the present day. Their global distribution makes them of special interest from a phylogenetic and biogeographic as well as an ecological point of view. Apart from the proceedings of previous symposia, there are no other books which cover the whole range of aspects. These proceedings update the last symposia as well as including completely new information on certain fields of research. Target groups are research scientists within ecology, systematic biology, evolutionary biology and population biology. The book could also be a useful source of information for special courses for students of the above mentioned topics.
A comprehensive study of the principles of cell signalling, concentrating on the structural and mechanistic aspects. The book is divided into four parts describing the machinery of signal transduction, the implementation of the signalling cascades focussing on the effect on gene transcription, the globular cellular regulatory programs, and the loss of regulatory control and its consequences with repsect to the molecular basis of cancer. There are well over 200 figures, many in 3-D representations.
Several general principles have emerged from the study of human transcription factors. First, germline mutations in genes encoding transcription factors result in malformation syndromes in which the development of multiple body structures is affected. Second, somatic mutations involving many of the same genes contribute to tumorigenesis. Third, transcriptional regulatory mechanisms demonstrate remarkable evolutionary conservation. Fourth, prenatal development and postnatal physiology are unified by the demonstration that a single transription factor can control the proliferation of progenitor cells during development and the expression within the differentiated cells of gene products that pa...
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The historical achievements in organic natural product synthesis can be recognized most clearly in the research accomplishments of Albert Eschenmoser. For example, his work on the chemical synthesis of vitamin B12 defined the frontier in organic natural product synthesis and profoundly influenced the science of organic chemistry. In addition to revealing the beautiful reaction pathways leading to compounds of great biochemical significance, Albert Eschenmoser has contributed innovative methods of outstanding utility for organic synthesis. Few individuals have so fundamentally influenced the science of organic chemistry as Albert Eschenmoser has. Over the years, a sizable fraction of Albert E...
In the intricate tapestry of nature, the potential of kitchen spice seeds remains largely untapped, despite their rich history as sources of natural compounds with diverse benefits. The scientific community faces a challenge in fully comprehending and harnessing the phytochemical, ethnobotanical, and pharmacological dimensions of these seeds, which hold promise in medicine but play pivotal roles in cultural, historical, and culinary spheres. Therapeutic and Pharmacological Applications of Ethnobotany is an all-encompassing compendium meticulously crafted to bridge these knowledge gaps. By presenting a synthesis of phytochemical analysis, ethnobotanical insights, pharmacological studies, botanical descriptions, industrial and culinary applications, biogenic synthesis, and innovative uses, this book provides a holistic exploration of kitchen spice seeds. Tailored for researchers, scientists, botanists, pharmacologists, ethnobotanists, and culinary experts, it serves as a beacon guiding readers through the scientific intricacies and cultural significances of these seeds, unlocking a wealth of knowledge that transcends disciplinary boundaries.
In recent times, group theory has found wider applications in various fields of algebra and mathematics in general. But in order to apply this or that result, you need to know about it, and such results are often diffuse and difficult to locate, necessitating that readers construct an extended search through multiple monographs, articles, and papers. Such readers must wade through the morass of concepts and auxiliary statements that are needed to understand the desired results, while it is initially unclear which of them are really needed and which ones can be dispensed with. A further difficulty that one may encounter might be concerned with the form or language in which a given result is p...
Our knowledge of the limnology of the waters situated, roughly, between the tropics of cancer and of capricorn, has depended for a long time on the expedition-approach, and therefore developed in a rather irregular, haphazard way, with the personal incentive of a small number of individuals as the main driving force. Things slowly started to change in the 1950s, and at an accelerating rate in the 1960s and 1970s. The IBP, and later the SCOPE and MAB programs, whatever their shortcomings are or may have been, promoted in-depth research of a small number of tropical lakes. For one thing, they showed the need for the creation of in situ limnological research institutes. When, in the 1970s, limn...