Phenomenon Of Lecithin

Development and current status of lecithin as a product are very closely linked to the continuously increasing variety of applications; these issues are addressed at the beginning of the volume. Subsequent descriptions of the numerous applications of lecithin make up the core of the work.

Rheology: Concepts, Methods and Applications, Third Edition provides a thorough historical and theoretical grounding in the field, and introduces rheology as the method of solving many practical problems in materials science and engineering. The book is practical and relevant for industry, but is also consistent with rheology courses in academia, making it relevant to both academics and accomplished rheologists in industry. The first four chapters discuss various aspects of theoretical rheology and, through examples from numerous studies, show how particular theories, models, or equations can be used in solving different problems. The shared experience and insight contained in these chapters assists practitioners carrying out rheological studies in generating relevant data. This helps to avert costly errors in analysis which are common when data are generated under the wrong conditions, or are incorrectly used. The fifth chapter covers methods of measurement and treatment of raw data—eight groups of methods are discussed in this chapter, providing the reader with many options for experimentation, along with guidance on where and how to use them properly. The final chapter demonstrates how to use rheological methods for different groups of products and manufacturing methods. The usefulness of chemorheological (rheokinetical) measurements is also emphasized. The chapter has a particular emphasis on real-world applications of rheology, and gives practical guidance to enable materials scientists to gather data and solve problems using these methods. This book is a systematic presentation of the subject of rheology—written by two of the foremost researchers in the field—showing the subject as an interrelated system of concepts, principal phenomena, experimental methods, and directions of their application. It also links with other branches of theoretical and applied sciences. Provides substantial experience and insight to assist rheologists working in a range of industries to generate relevant data, avoiding costly errors in analysis Includes eight groups of measurement methods, providing the reader with options so they can choose the most effective for their situation Offers thorough coverage of different applications of rheology, demonstrating how to use rheological methods for different products—from polymeric materials to food products, biological fluids, and electro and magnetic materials

First published in 1991. Historically, phospholipid binding antibodies were important in the study of syphilis. During the 1980s there was a resurgence of new interest in these antibodies due to reported associations with recurrent thrombosis, fetal loss, and other clinical disorders. Because of the variety of reported clinical associations and their occurrence in systemic autoimmune disorders, these antibodies have become important in many medical fields, such as clinical immunology, rheumatology, hematology, and obstetrics and gynecology. Phospholipid-Binding Antibodies provides in-depth reviews by specialists in these clinical areas and covers topics including the biochemistry of phospholipids, their role in coagulation, phospholipid immunology, and lupus anticoagulant and antiphospholipid antibodies by solid phase immunoassays. Other topics include thrombosis and fetal loss, as well as the role of phospholipid binding antibodies in these disorders. Antiphospholipid Syndrome and its reported clinical associations is also discussed.

The bile acids as principal end products of cholesterol metabolism occupy a focal position in our understanding of the role of steroids in bio logical systems. The biogenesis of bile acids from cholesterol in higher ani mals, and their functions in regulating sterol metabolism and in gastrointestinal physiology have been elucidated by the development of elegant methodo logical approaches during the last two decades. The molecular pleomorphism exhibited by the bile acids and bile alcohols in the animal kingdom is a classic example of their role in biochemical evolution. The total story of the bile acids, their chemistry, their role in normal and abnormal physiological processes, and their significance in biochemical evolution has never been available in the form of a comprehensive treatise written in the words of those who have contributed to the development of our knowledge in this area. The Bile Acids, in two volumes, will serve to fill this void, and will also bring together information which will prove in valuable to both the biochemist and the medical scientist. We wish to thank Mrs. Sally Wiseman and Mrs. Lillian Haas for their invaluable assistance with the editing of the manuscripts. This work was supported in part by grants AM-02131, General Research Support SS0-1- FR-05479 (P.P.N.), HE-03299, HE-05209, and a National Heart Institute Research Career Award (D.K. ), K6-HE-734, from the National Institutes of Health, United States Public Health Service. P.P.N. Baltimore, Maryland D.K.

There are few comprehensive books on the market on the subject of Rheology -- the complex science dealing with flow and deformation of matter -- and these are several years old. At least now there is a book that explains the meaning of a science that many scientists need to use but only a few can fully grasp. It does so by striking the balance between oversimplification and overload of theory in a very compelling and readable manner. The authors' systematic presentation enables the authors to include all components of Rheology in one volume. The first four chapters of this book discuss various aspects of theoretical Rheology and, by examples of many studies, show how particular theory, model, or equation can be used in solving different problems. The main emphasis is on liquids, but solid materials are discussed in one full chapter as well. Methods of measurement and raw data treatment are included in one large chapter which constitutes more than one quarter of the book. Eight groups of methods are discussed giving many choices for experimentation and guidance on where and how to use them properly. The final chapter shows how to use rheological methods in different groups of products and methods of their manufacture. Usefulness of chemorheological (rheokinetical) measurements is also emphasized. This chapter continues with examples of purposeful applications in practical matters.

The past decade has been a period of explosion of knowledge on the chemistry and pharmacology of snake toxins. Thanks to the development of protein chemistry, nearly a hundred snake toxins have been purified and sequenced, representing one of the largest families of sequenced proteins. Moreover, the mode of action of these toxins has been largely elucidated by the concerted efforts of pharmacologists, electro physiologists, and biochemists. As a result of these studies, some of the snake toxins, e.g., a-bungarotoxin and cobra neurotoxins, have been extensively used as specific markers in the study of the acetylcholine receptors. Indeed, without the discovery of these snake toxins, our knowledge of the structure and function of nicotinic acetylcholine receptors would not have advanced so rapidly. The contribution of snake venom research to the biomedical sciences is not limited to the study of cholinergic receptors. Being one of the most concentrated enzyme sources in nature, snake venoms are also valuable tools in biochemical research. Venom phosphodiesterase, for example, has been widely used for structural studies of nucleic acids; proteinase, for the sequence studies of proteins and pep tides ; phospholipase A , for lipid research; and L-amino acid oxidase for identifying optical z isomers of amino acids. Furthermore, snake venoms have proven to be useful agents for clarifying some basic concepts on blood coagulation and some venom enzymes, e.g., thrombin-like enzymes and pro coagulants have been used as therapeutic agents.

The world's most comprehensive, well documented, and well illustrated book on this subject. With extensive subject and geographical index. 292 photographs and illustrations. Free of charge in digital PDF format on Google Books.

Advances in Applied Microbiology