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Polyamines are organic cations found in all eukaryotic cells and intimately involved in, and required for, distinct biological functions. An increasing body of evidence indicates that the regulation of cellular polyamines is a central convergence point for the multiple signaling pathways driving various cellular functions. Over the last decade, considerable progress has been made in und- standing the molecular functions of cellular polyamines. These significant findings provide a fundamental basis to not only define the exact role of polyamines in physiology, but also to develop new therapeutic approaches for cancers and other diseases. The major objective of this book is to provide a timely...
Over the last decade, considerable progress has been made in understanding cellular and molecular mechanisms involved in gastrointestinal mucosal injury and repair. These findings provide the basis to identify the etiology and pathogenesis of various gut mucosal injury-related diseases and to develop new therapeutic approaches. The publication at hand is divided into three sections: Epithelial restitution, mucosal repair and ulcer healing, and experimental therapeutics. The first part highlights the early rapid mucosal restitution, focussing on the roles of extracellular matrix, cytoskeleton, cytokines, Ca2+ signaling, polyamines, and the protein kinase C/DAG pathways. The next section deals...
Geared toward high school students as well as for independent study, this text covers plane, solid, coordinate, vector, and non-Euclidean geometry. More than 2,000 illustrations. Electronic solutions manual available. 1977 edition.
A substantial amount of this book is devoted to general questions (including significant material from the history of science, allowing one to follow the formation of modern attitudes on the essence of mathematics and the methods of its applications): only chapters 5 and 6 are devoted to a survey of the basic algebraic structures and a more detailed analysis of a structure associated with some geometric considerations, are of a more concrete character.
This book presents methods of solving problems in three areas of elementary combinatorial mathematics: classical combinatorics, combinatorial arithmetic, and combinatorial geometry. Brief theoretical discussions are immediately followed by carefully worked-out examples of increasing degrees of difficulty and by exercises that range from routine to rather challenging. The book features approximately 310 examples and 650 exercises.
This book explores the rich and elegant interplay between the two main currents of mathematics, the continuous and the discrete. Such fundamental notions in discrete mathematics as induction, recursion, combinatorics, number theory, discrete probability, and the algorithmic point of view as a unifying principle are continually explored as they interact with traditional calculus.
Els autors presenten diferents tipus de matrius de transferència, sistematitzen les propietats matemàtiques formals i les relacionen amb diferents tipus de matrius de scattering... En definitiva, aporten als investigadors les tècniques que són d'utilitat en l'estudi d'heterostructures planars.