biophysics

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Biophysics

Author : William S. Bialek
ISBN : 9780691138916
Genre : Science
File Size : 41. 31 MB
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Interactions between the fields of physics and biology reach back over a century, and some of the most significant developments in biology--from the discovery of DNA's structure to imaging of the human brain--have involved collaboration across this disciplinary boundary. For a new generation of physicists, the phenomena of life pose exciting challenges to physics itself, and biophysics has emerged as an important subfield of this discipline. Here, William Bialek provides the first graduate-level introduction to biophysics aimed at physics students. Bialek begins by exploring how photon counting in vision offers important lessons about the opportunities for quantitative, physics-style experiments on diverse biological phenomena. He draws from these lessons three general physical principles--the importance of noise, the need to understand the extraordinary performance of living systems without appealing to finely tuned parameters, and the critical role of the representation and flow of information in the business of life. Bialek then applies these principles to a broad range of phenomena, including the control of gene expression, perception and memory, protein folding, the mechanics of the inner ear, the dynamics of biochemical reactions, and pattern formation in developing embryos. Featuring numerous problems and exercises throughout, Biophysics emphasizes the unifying power of abstract physical principles to motivate new and novel experiments on biological systems. Covers a range of biological phenomena from the physicist's perspective Features 200 problems Draws on statistical mechanics, quantum mechanics, and related mathematical concepts Includes an annotated bibliography and detailed appendixes Instructor's manual (available only to teachers)

Biophysics

Author : Patrick F. Dillon
ISBN : 9781139504621
Genre : Science
File Size : 39. 47 MB
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Specifically tailored to life science students, this textbook explains quantitative aspects of human biophysics with examples drawn from contemporary physiology, genetics and nanobiology. It outlines important physical ideas, equations and examples at the heart of contemporary physiology, along with the organization necessary to understand that knowledge. The wide range of biophysical topics covered include energetics, bond formation and dissociation, diffusion and directed transport, muscle and connective tissue physics, fluid flow, membrane structure, electrical properties and transport, pharmacokinetics and system dynamics and stability. Enabling students to understand the uses of quantitation in modern biology, equations are presented in the context of their application, rather than derivation. They are each directed toward the understanding of a biological principle, with a particular emphasis on human biology. Supplementary resources, including a range of test questions, are available at www.cambridge.org/9781107001442.

Biophysics

Author : V. Pattabhi
ISBN : 1402002181
Genre : Science
File Size : 68. 32 MB
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Biophysics, being an interdisciplinary topic, is of great importance in modern biology. This book addresses the needs of biologists, biochemists, and medical biophysicists for an introduction to the subject. The text is based on a one-semester course offered to graduate students of life sciences, and covers a wide range of topics from quantum mechanics to pre-biotic evolution. To understand the topics, only basic school level mathematics is required. The first chapter introduces and refreshes the reader's knowledge of physics and chemistry. The next chapters cover various physico-chemical techniques used to study biomolecular structures, followed by treatments of spectroscopy, microscopy, diffraction, and computational techniques. X-ray crystallography and NMR are dealt with in greater detail. The latter half of the book covers results obtained from applications of the above techniques. Some of the other topics dealt with are energy pathways, biomechanics, and neuro-biophysics.

Biophysics

Author : Roland Glaser
ISBN : 9783662044940
Genre : Science
File Size : 72. 35 MB
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Biophysics is the science of physical principles underlying the "phenomenon of life" on all levels of organization. This book begins by explaining molecular and ionic interactions, movements, excitation and energy transfer, and the self-organization of supramolecular structures. Then the biological organism is introduced as a non-equilibrium system. Finally, system analyses are discussed as well as environmental biophysics, ecological interactions, growth, differentiation, and evolution. A growing number of applications in biotechnology are based on these biophysical concepts.

An Introduction To Environmental Biophysics

Author : Gaylon S. Campbell
ISBN : 9781468499179
Genre : Science
File Size : 57. 89 MB
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The study of environmental biophysics probably began earlier in man's history than that of any other science. The study of organism-environment interaction provided a key to survival and progress. Systematic study of the science and recording of experimental results goes back many hundreds of years. Ben jamin Franklin, the early American statesman, inventor, printer, and scientist studied conduction, evaporation, and radiation. One of his observations is as follows: My desk on which I now write, and the lock of my desk, are both exposed to the same temperature of the air, and have therefore the same degree of heat or cold; yet if I lay my hand successively on the wood and on the metal, the latter feels much the coldest, not that it is really so, but being a better conductor, it more readily than the wood takes away and draws into itself the fire that was in my skin. 1 Franklin probably was not the first to discover this principle, and certainly was not the last. Modem researchers rediscover this principle frequently in their own work. It is sometimes surprising how slowly progress is made. Progress in environmental biophysics, since the observa tions of Franklin and others, has been mainly in two areas: use of mathematical models to quantify rates of heat and mass transfer and use of the continuity equation that has led to energy budget analyses.

Biophysics

Author : Rodney Cotterill
ISBN : 9780470854563
Genre : Science
File Size : 24. 23 MB
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Biophysics is an evolving, multidisciplinary subject which applies physics to biological systems and promotes an understanding of their physical properties and behaviour. Biophysics: An Introduction, is a concise balanced introduction to this subject. Written in an accessible and readable style, the book takes a fresh, modern approach with the author successfully combining key concepts and theory with relevant applications and examples drawn from the field as a whole. Beginning with a brief introduction to the origins of biophysics, the book takes the reader through successive levels of complexity, from atoms to molecules, structures, systems and ultimately to the behaviour of organisms. The book also includes extensive coverage of biopolymers, biomembranes, biological energy, and nervous systems. The text not only explores basic ideas, but also discusses recent developments, such as protein folding, DNA/RNA conformations, molecular motors, optical tweezers and the biological origins of consciousness and intelligence. Biophysics: An Introduction * Is a carefully structured introduction to biological and medical physics * Provides exercises at the end of each chapter to encourage student understanding Assuming little biological or medical knowledge, this book is invaluable to undergraduate students in physics, biophysics and medical physics. The book is also useful for graduate students and researchers looking for a broad introduction to the subject.

Essentials Of Biophysics

Author : P Narayanan
ISBN : 812241219X
Genre :
File Size : 89. 92 MB
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Biophysics Is An Interdisciplinary Subject-A ``Bridge`` Between Physical And Natural Sciences. Recent Advances In Physical Sciences, And Progress That Are Taking Place In Biological And Medical Sciences, Are Making Them More Data-Rich, And Has Brought The Subject Of Biophysics To The Center Stage. The Subject Of This Book Is Thus Conceived And Presented Taking Into Account These Developments To Reach Out To The Students And Scholars With Biological And Medical Background, To Make Them Knowledgeable About The Physical Principles And Techniques That Are Becoming An Integral Part Of Their Subjects, And To Inculcate The Quantitative Approach In Natural Sciences, Which Is The Essential Part Of Physical Sciences. This Book Is Also Aimed At The Physical Sciences Faculties, To Bring To Their Awareness, The Structural And Functional Aspects Of Biological Entities And The Complexity, And The Emerging Trends In Natural Sciences. In Essence, This Book Is To Reach Out To The Students Of Physical Sciences Also, Whose Convergent Interest Is In The Biological/Medical Sciences.The Book Contains All The `Core` Topics In Biophysics, Presented In A Lucid Manner, Emphasizing The Quantitative Approach Towards Biological, Medical And Allied Subjects. Overviews To Sections, And Synopses To Chapters, Are Provided To Present The Subject Matter And Concepts In A Condensed Format. Appendices, Glossary And Index Are Included To Make The Book Self-Contained, And To Facilitate The Reader A Quick Perusal Of Technical Concepts And Terms.

Biophysics

Author : W. Hoppe
ISBN : 9783642688775
Genre : Science
File Size : 75. 58 MB
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What is biophysics? As with all subjects which straddle traditional boundaries between fields, it eludes a precise definition. Furthermore, it is impossible to do biophysics without having a certain foundation of knowledge in biology, physics, physical chemistry, chemistry and biochemistry. One approach to a biophysics textbook would be to refer the student to the literature of these neighboring fields, and to leave the selection of the appropriate supplementary material up to the student. The editors of this volume are of the opinion that it is more useful and less time-consuming to present a selection of the supplementary knowledge, in concentrated form, together with the subject matter specific to biophysics. The reader will thus find in this book introductions to such subjects as the structure and function of the cell, the chemical structure of biogenic macromolecules, and even theoretical chemistry. What, indeed, is biophysics? Must we consider it to include physiology, electromedicine, radiation medicine, etc. ? The field has evolved continuously in recent years. Molecular understanding oflife processes has come more and more to the fore. Just as the field of molecular physics has developed to describe structures and processes in the realm of non-living systems, there has been a corresponding development of molecular biophysics.

Introductory Biophysics

Author : J. R. Claycomb
ISBN : 9780763779986
Genre : Science
File Size : 64. 89 MB
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Designed for biology, physics, and medical students, Introductory Biophysics: Perspectives on the Living State, provides a comprehensive overview of the complex subject of biological physics. The companion CD-ROM (eBook version does not include the CD-ROM), with MATLAB examples and the student version of QuickFieldTM, allows the student to perform biophysical simulations and modify the textbook example files. Included in the text are computer simulations of thermodynamics, astrobiology, the response of living cells to external fields, chaos in population dynamics, numerical models of evolution, electrical circuit models of cell suspension, gap junctions, and neuronal action potentials. With this text students will be able to perform biophysical simulations within hours. MATLAB examples include; the Hodgkin Huxley equations; the FitzHugh-Nagumo model of action potentials; fractal structures in biology; chaos in population dynamics; the cellular automaton model (the game of life); pattern formation in reaction-diffusion systems. QuickFieldTM tutorials and examples include; calculation of currents in biological tissue; cells under electrical stimulation; induced membrane potentials; heat transfer and analysis of stress in biomaterials.

Biophysics

Author : C. Sybesma
ISBN : 9789400922396
Genre : Science
File Size : 76. 72 MB
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Today, courses on biophysics are taught in almost all universities in the world, often in separate biophysics departments or divisions. This reflects the enormous growth of the field, even though the problem of its formal definition remains unsettled. In spite of this lack of definition, biophysics, which can be considered as an amalgamation of the biological and the physical sciences, is recognized as a major scientific activity that has led to spectacular developments in biology. It has increased our knowledge of biological systems to such an extent that even industrial and commercial interests are now beginning to put their stamps on biological research. A major part of these developments took place during the last two decades. Therefore, an introductory textbook on biophysics that was published a dozen years ago (c. Sybesma, An Introduction to Biophysics, Academic Press, 1977) no longer could fulfil " ... the need for a comprehensive but elementary textbook ... -" (R. Cammack, Nature 272 (1978), 96). However, because of the increased proliferation of biophysics into higher education, the need for introductory course texts on biophysics is stronger than ever. This fact, together with valuable comments of many readers, have encouraged me to revise the original book.

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