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Current Topics in Cellular Regulation, Volume 18: Biological Cycles covers topics on the events of molecular biology, cellular communication, and the merging of cell structure to biochemical function. The book discusses the ornithin-urea cycle; the cycles of glutathione metabolism and transport; and the role of multienzymatic proteins in mammalian pyrimidine biosynthesis. The text also describes the significance of interconvertible enzyme cycles in cellular regulation; regulation of mammalian pyruvate dehydrogenase complex by a phosphorylation-dephosphorylation cycle; replenishment of citric

Biological rhythms --- Cells. --- Metabolism. --- Biological transport

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An introduction to a basic property of life, one mostly unknown to science and the public until the latter half of the last century: humans, plants, and animals have within their bodies a kind of clock that synchronizes much of what they do with the time of day, the seasons or the tides.

Chronobiology --- Biological time --- Biology --- Time --- Biological rhythms. --- Jet lag.

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Brain Repair, addresses all relevant issues underlying the mechanisms of brain damage, brain plasticity and post-traumatic reorganization after CNS lesions. This book is divided the three major sections that follow; cellular and molecular basis of brain repair, plasticity and reorganization of neural networks, and experimental therapy strategies. Brain Repair is written by high profile, international experts who describe in detail the newest results from basic research and highlight new model systems, techniques and therapy approaches. Based on a careful analysis of the cellular and molecular reaction patterns of the CNS to lesions, the contributions cover possibilities for endogenous reorganization and repair as well as exciting new therapies emerging from basic research, some of which have already been introduced into the clinics. Thus, this book is unique in bridging the gap between basic and clinical research. It will be a valuable tool for all students, researchers and clinicians interested in understanding the brain's capacity to cope with lesions and interested in learning about emerging new therapy concepts.

Brain --- Cell cycle --- Apoptosis. --- Physiology. --- Regeneration. --- Cell death --- Mitotic cycle --- Nuclear cycle (Cytology) --- Biological rhythms --- Cerebrum --- Mind --- Central nervous system --- Head

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It is our utmost pleasure to present a new book on tobacco BY-2 cells, Tobacco BY-2 Cells: From Cellular Dynamics to Omics, as the 58th volume in the book series Biotechnology in Agriculture and Forestry (BAF). It represents an extension of the previous book Tobacco BY-2 Cells,vol. 53 of the BAF. Moreover, the content is rather different from the latter and includes new topics, gleaned from the First International Symposium on Tobacco BY-2 Cells held at the Plant Science Center of the RIKEN, Yokohama, organized by Nagata, Matsuoka and Inze, in September 2004. To this symposium came more than 200 people from different parts of the world to discuss issues. Although most of the contributors to the previous volume of Tobacco BY-2 Cells gave talks on their subjects, there were many other speakers who presented new topics and approaches. So we enjoyed the symposium very much. Thus we decided to compile a new volume on tobacco BY-2 cells which includes these new topics. In addition, towards the end of the symposium, our common understanding was that the tobacco BY-2 cell system is still important in plant biology, in particular for studying the dynamic features of plant cells. We hope this volume is useful for plant biologists. Contents of the book are as follows: in Chapters I. 1–I. 6, various aspects of the cell cycle and cellular dynamics using BY-2 cells are described. In Ch- ters II. 1–II.

Plant cell cycle. --- Plant cells and tissues. --- Tobacco --- Cytology. --- Mahorka --- Makhorka --- Nicotiana tabacum --- Nicotiana --- Plant tissues --- Cells --- Plant anatomy --- Tissues --- Biological rhythms in plants --- Cell cycle

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Early birds and night owls are born, not made. Sleep patterns may be the most obvious manifestation of the highly individualized biological clocks we inherit, but these clocks also regulate bodily functions from digestion to hormone levels to cognition. Living at odds with our internal timepieces, Till Roenneberg shows, can make us chronically sleep deprived and more likely to smoke, gain weight, feel depressed, fall ill, and fail geometry. By understanding and respecting our internal time, we can live better.Internal Time combines storytelling with accessible science tutorials to explain how our internal clocks work-for example, why morning classes are so unpopular and why "lazy" adolescents are wise to avoid them. We learn why the constant twilight of our largely indoor lives makes us dependent on alarm clocks and tired, and why social demands and work schedules lead to a social jet lag that compromises our daily functioning.Many of the factors that make us early or late "chronotypes" are beyond our control, but that doesn't make us powerless. Roenneberg recommends that the best way to sync our internal time with our external environment and feel better is to get more sunlight. Such simple steps as cycling to work and eating breakfast outside may be the tickets to a good night's sleep, better overall health, and less grouchiness in the morning.

Chronobiology. --- Biological rhythms. --- Biological clocks --- Biology --- Biorhythms --- Endogenous rhythms --- Living clocks --- Rhythms, Biological --- Chronobiology --- Cycles --- Pacemaker cells --- Biological time --- Time --- Periodicity