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Books > Science & Mathematics > Physics > Applied physics & special topics > Biophysics
Stimulates readers to recognize holistic nature of cellular bioenergetics. Encourages interdisciplinary approach to bioenergetics. Changes paradigm from negative to positive meaning for entropy increase. Connects biological to thermodynamic evolution. Illustrates how beautiful structures contribute to evolution of universe.
Fully updated throughout, with new sections on image interpretation and image reconstruction Overview of the current state of experimental and clinical use of EIT as well as active research developments Overview of related research in geophysics, industrial process tomography, magnetic-resonance and magnetic-induction impedance imaging
This book explores the remarkable information correspondences and probability structures of proteins. Correspondences are pervasive in biochemistry and bioinformatics: proteins share homologies, folding patterns, and mechanisms. Probability structures are just as paramount: folded state graphics reflect Angstrom-scale maps of electron density. The author explores protein sequences (primary structures), both individually and in sets (systems) with the help of probability and information tools. This perspective will enhance the reader's knowledge of how an important class of molecules is designed and put to task in natural systems, and how we can approach class members in hands-on ways.
Systems-Level Modelling of Microbial Communities: Theory and Practice introduces various aspects of modelling microbial communities and presents a detailed overview of the computational methods which have been developed in this area. This book is aimed at researchers in the field of computational/systems biology as well as biologists/experimentalists studying microbial communities, who are keen on embracing the concepts of computational modelling. The primary focus of this book is on methods for modelling interactions between micro-organisms in a community, with special emphasis on constraint-based and network-based modelling techniques. A brief overview of population- and agent-based modelling is also presented. Lastly, it covers the experimental methods to understand microbial communities, and provides an outlook on how the field may evolve in the coming years.
Smart materials are the way of the future in a variety of fields, from biomedical engineering and chemistry to nanoscience, nanotechnology, and robotics. Featuring an interdisciplinary approach to smart materials and structures, this second edition of Artificial Muscles: Applications of Advanced Polymeric Nanocomposites has been fully updated to thoroughly review the latest knowledge of ionic polymeric conductor nanocomposites (IPCNCs), including ionic polymeric metal nanocomposites (IPMNCs) as biomimetic distributed nanosensors, nanoactuators, nanotransducers, nanorobots, artificial muscles, and electrically controllable intelligent polymeric network structures. Authored by one of the founding fathers of the field, the book introduces fabrication and manufacturing methods of several electrically and chemically active ionic polymeric sensors, actuators, and artificial muscles, as well as a new class of electrically active polymeric nanocomposites and artificial muscles. It also describes a few apparatuses for modeling and testing various artificial muscles to show the viability of chemoactive and electroactive muscles. It presents the theories, modeling, and numerical simulations of ionic polymeric artificial muscles' electrodynamics and chemodynamics and features current industrial and medical applications of IPMNCs. By covering the fabrication techniques of and novel developments in advanced polymeric nanocomposites, this second edition continues to provides an accessible yet solid foundation to the subject while stimulating further research. Key features: Fully up to date with the latest cutting-edge discoveries in the field Authored by a world expert in the subject area Explores the exciting and growing topic of smart materials in medicine Mohsen Shahinpoor is Professor of Mechanical Engineering at the University of Maine and a leading expert in artificial muscles.
This book brings together current information on the families that make up the kinesin superfamily of molecular motors in one comprehensive text; an ideal reference for researchers looking to make comparisons between different families, for specific information on an individual family, or simply for an overview of the kinesin superfamily. Information is clearly structured and grouped according to individual families and organised in a standardised way, allowing the reader to easily search and retrieve information on this large superfamily of molecular motors and understand how its individual members carry out a diverse variety of cellular functions. Features: The first book dedicated to the entire kinesin superfamily Enables a fuller understanding of this family of proteins, which is becoming an increasing focus of research due to its involvement in diseases such as cancer, neuropathies and ciliopathies Written in a manner accessible to a range of researchers in the life and medical sciences, including biophysicists, biochemists and medical researchers. Chapter 4 of this book is freely available as a downloadable Open Access PDF under a Creative Commons Attribution-Non Commercial-No Derivatives 4.0 license.here. Chapter 11 of this book is freely available as a downloadable Open Access PDF under a Creative Commons Attribution-Non Commercial-No Derivatives 4.0 license.here.
Includes examples on such cases as solidification of alloys, chemically-driven convection of dissociating gases, temperature-dependent predator-prey mite systems, multi-layer and two-phase fluid phenomena, viral-target cell interactions, diffusive and gravitational instabilities, and chemical, material science, optical, and ecological Turing patterns. Aims to make the process of quantification of scientific phenomena transparent. Is a hybrid semi-autobiographical account of research results and a monograph on pattern formation.
Hormones, Fourth Edition provides a report on the field of human hormones viewed in light of our current understanding of cellular and subcellular architecture, along with the molecular details of their modes of action. Comprehensive information about hormone action on canonical and non-canonical signaling pathways at cellular and subcellular level and effects on architecture and function of organ systems are discussed. All chapters in this new edition have been completely updated to cover advances in endocrinology research, which has expanded significantly in the last few years. Vast coverage of hormones not previously covered and newly discovered aspects of hormone action are also included. This new fourth edition is intended to be used by advanced undergraduates and graduate students in the biological sciences. It will also provide useful background information for health professionals, clinicians and researchers in the field of endocrinology, metabolism and biochemistry.
Physical oncology has the potential to revolutionize cancer research and treatment. The fundamental rationale behind this approach is that physical processes, such as transport mechanisms for drug molecules within tissue and forces exchanged by cancer cells with tissue, may play an equally important role as biological processes in influencing progression and treatment outcome. This book introduces the emerging field of physical oncology to a general audience, with a focus on recent breakthroughs that help in the design and discovery of more effective cancer treatments. It describes how novel mathematical models of physical transport processes incorporate patient tissue and imaging data routinely produced in the clinic to predict the efficacy of many cancer treatment approaches, including chemotherapy and radiation therapy. By helping to identify which therapies would be most beneficial for an individual patient, and quantifying their effects prior to actual implementation in the clinic, physical oncology allows doctors to design treatment regimens customized to each patient's clinical needs, significantly altering the current clinical approach to cancer treatment and improving the outcomes for patients.
The book discusses various aspects of biophysics. It starts from the popular article on neurobiology to quantum biology and ends up with the consciousness of a human being and in the universe. The authors have covered eight nine different aspects of natural intelligence, starting from time crystal found in the chemical biology to the vibrations and the resonance of proteins. They have covered a wide spectrum of hierarchical communication among different biological systems. Most importantly, authors have taken an utmost care that even school-level students fall in love with biophysics; it is simple and more of a textbook and definitely bring the readers to a world of biology and physics like never before. Most authors are experienced academicians, and they have used lucid and simple language to make the content interesting for the readers.
The contributed volume puts emphasis on a superior role of water in (bio)systems exposed to a mechanical stimulus. It is well known that water plays an extraordinary role in our life. It feeds mammalian or other organism after distributing over its whole volume to support certain physiological and locomotive (friction-adhesion) processes to mention but two of them, both of extreme relevance. Water content, not only in the mammalian organism but also in other biosystems such as whether those of soil which is equipped with microbiome or the ones pertinent to plants, having their own natural network of water vessels, is always subjected to a force field.The decisive force field applied to the biosystems makes them biomechanically agitated irrespective of whether they are subjected to external or internal force-field conditions. It ought to be noted that the decisive mechanical factor shows up in a close relation with the space-and-time scale in which it is causing certain specific phenomena to occur.The scale problem, emphasizing the range of action of gravitational force, thus the millimeter or bigger force vs. distance scale, is supposed to enter the so-called macroscale approach to water transportation through soil or plants' roots system. It is merely related to a percolation problem, which assumes to properly inspect the random network architecture assigned to the biosystems invoked. The capillarity conditions turn out to be of prior importance, and the porous-medium effect has to be treated, and solved in a fairly approximate way.The deeper the scale is penetrated by a force-exerting and hydrated agent the more non-gravitational force fields manifest. This can be envisaged in terms of the corresponding thermodynamic (non-Newtonian) forces, and the phenomena of interest are mostly attributed to suitable changes of the osmotic pressure. In low Reynolds number conditions, thus in the (sub)micrometer distance-scale zone, they are related with the corresponding viscosity changes of the aqueous, e.g. cytoplasmatic solutions, of semi-diluted and concentrated (but also electrolytic) characteristics. For example, they can be observed in articulating systems of mammals, in their skin, and to some extent, in other living beings, such as lizards, geckos or even insects. Through their articulating devices an external mechanical stimulus is transmitted from macro- to nanoscale, wherein the corresponding osmotic-pressure conditions apply. The content of the proposed work can be distributed twofold. First, the biomechanical mammalian-type (or, similar) systems with extraordinary relevance of water for their functioning will be presented, also including a presentation of water itself as a key physicochemical system/medium. Second, the suitably chosen related systems, mainly of soil and plant addressing provenience, will be examined thoroughly. As a common denominator of all of them, it is proposed to look at their hydrophobic and/or (de)hydration effects, and how do they impact on their basic mechanical (and related, such as chemo-mechanical or piezoelectric, etc.) properties. An additional tacit assumption employed throughout the monograph concerns statistical scalability of the presented biosystems which is equivalent to take for granted a certain similarity between local and global system's properties, mostly those of mechanical nature. The presented work's chapters also focus on biodiversity and ecological aspects in the world of animals and plants, and the related systems. The chapters' contents underscore the bioinspiration as the key landmark of the proposed monograph.
Electrons are involved in all electrical phenomena, and living cells cannot be an exception. This book takes on a decidedly different approach to existing texts on electrophysiology, by considering electrical physiological processes from the viewpoint of electron flow, rather than the conventional notion of ion movement. It concisely describes the theoretical background of electron density and cellular voltage, before exploring thought-provoking questions such as the relationship between electrolyte distribution and transmembrane potential, and the source of electricity generation in living cells. A new electromagnetic theory of muscular function is presented, and all topics of relevance - including the electrophysiology of invertebrates, plants, fungi and bacteria - are comprehensively covered. Using plain language and more than 40 original illustrations, the author has designed each chapter to provide a succinct overview of an individual topic in a format that appeals to both the expert and the uninitiated. Electromagnetism, Quanta, and Electron Flow in the Electrophysiology of Living Cells proffers a refreshingly new way to understand a fascinatingly old subject.
This thesis establishes a multifaceted extension of the deterministic control framework that has been a workhorse of nonequilibrium statistical mechanics, to stochastic, discrete, and autonomous control mechanisms. This facilitates the application of ideas from stochastic thermodynamics to the understanding of molecular machines in nanotechnology and in living things. It also gives a scale on which to evaluate the nonequilibrium energetic efficiency of molecular machines, guidelines for designing effective synthetic machines, and a perspective on the engineering principles that govern efficient microscopic energy transduction far from equilibrium. The thesis also documents the author's design, analysis, and interpretation of the first experimental demonstration of the utility of this generally applicable method for designing energetically-efficient control in biomolecules. Protocols designed using this framework systematically reduced dissipation, when compared to naive protocols, in DNA hairpins across a wide range of experimental unfolding speeds and between sequences with wildly different physical characteristics.
Ion channels generate bioelectricity. Recent findings have documented the biophysical properties, the structure, assembly and regulation, and function and dysfunction of nonclassical nervous system ion channels. This book reviews nonclassical ion channel research, ranging from the basic biology, structure, regulations to their functions not only in normal physiology but also neurological disorders, using a variety of cutting-edge techniques and novel animal models.
Which fungus is as sensitive to light as the human eye? What are the myths and facts about the ozone hole, tanning, skin cancer, and sunscreens? What is the effect of light on butterfly copulation? This entertaining collection of essays explores how various organisms -- including archaebacteria, slime molds, fungi, plants, insects, and humans -- sense and respond to sunlight. The essays in Peter A. Ensminger's book cover vision, photosynthesis, and phototropism, as well as such unusual topics as the reason why light causes beer to develop a "skunky" odor. He introducec us to the kinds of eyes that have evolved in different animals, including those in a species of shrimp that is ostensibly eyeless; gives us a better appreciation of color vision; explains how plowing fields at night may be used to control weeds; and tells about variegate porphyria, a metabolic disease that makes people very sensitive to sunlight and may have afflicted King George III of England. These engaging essays present a complicated yet fascinating subject in an accessible way. The book will be treasured by anyone interested in the wonders of biology.
Blood microcirculation is essential to our bodies for the successful supply of nutrients, waste removal, oxygen delivery, homeostasis, controlling temperature, wound healing, and active immune surveillance. This book provides a physical introduction to the subject and explores how researchers can successfully describe, understand, and predict behaviours of blood flow and blood cells that are directly linked to these important physiological functions. Using practical examples, this book explains how the key concepts of physics are related to blood microcirculation and underlie the dynamic behavior of red blood cells, leukocytes, and platelets. This interdisciplinary book will be a valuable reference for researchers and graduate students in biomechanics, fluid mechanics, biomedical engineering, biological physics, and medicine. Features: The first book to provide a physical perspective of blood microcirculation Draws attention to the potential of this physical approach for novel applications in medicine Edited by specialists in this field, with chapter contributions from subject area specialists
This text is an introductory compilation of basic concepts, methods and applications in the field of spectroscopy. It discusses new radiation sources such as lasers and synchrotrons and describes the linear response together with the basic principles and the technical background for various scattering experiments.
This unique book provides an accessible introduction to both the scientific background and the key people involved in the discovery and use of radiation and radioactivity. It begins by providing a short history of radiation exposures and radiation poisoning; from the early inappropriate use of X-rays and radium cures through the misadventures of the Manhattan Project and the Chernobyl disaster, to the high-profile and deliberate poisoning of Alexander Litvinenko in London with polonium-210, which gave rise to worldwide media attention. The chapters provide a catalogue of deliberate criminal acts, unfortunate accidents, and inadvertent radiation exposures, exploring well-known events in detail, as well as some not so well-known occurrences. It works through the topics by focusing on human stories and events and their biological impact. In addition, it covers descriptions of the beneficial uses of radiation and radioactivity. This book can be enjoyed by any reader with a general interest in science, as well as by students and professionals within the scientific and medical communities. Key features Authored by a subject area specialist who has worked in both clinical practice and academia and was involved with the national media following incidents of national and international importance Provides a unique human perspective into well-known and some lesser known events and a concise history of the discovery of radiation and the events that followed Adds scientific and medical background to a subject of high media interest
This unique book provides an accessible introduction to both the scientific background and the key people involved in the discovery and use of radiation and radioactivity. It begins by providing a short history of radiation exposures and radiation poisoning; from the early inappropriate use of X-rays and radium cures through the misadventures of the Manhattan Project and the Chernobyl disaster, to the high-profile and deliberate poisoning of Alexander Litvinenko in London with polonium-210, which gave rise to worldwide media attention. The chapters provide a catalogue of deliberate criminal acts, unfortunate accidents, and inadvertent radiation exposures, exploring well-known events in detail, as well as some not so well-known occurrences. It works through the topics by focusing on human stories and events and their biological impact. In addition, it covers descriptions of the beneficial uses of radiation and radioactivity. This book can be enjoyed by any reader with a general interest in science, as well as by students and professionals within the scientific and medical communities. Key features Authored by a subject area specialist who has worked in both clinical practice and academia and was involved with the national media following incidents of national and international importance Provides a unique human perspective into well-known and some lesser known events and a concise history of the discovery of radiation and the events that followed Adds scientific and medical background to a subject of high media interest
What are the relations between the shape of a system of cities and that of fish school? Which events should happen in a cell in order that it participates to one of the finger of our hands? How to interpret the shape of a sand dune? This collective book written for the non-specialist addresses these questions and more generally, the fundamental issue of the emergence of forms and patterns in physical and living systems. It is a single book gathering the different aspects of morphogenesis and approaches developed in different disciplines on shape and pattern formation. Relying on the seminal works of D'Arcy Thompson, Alan Turing and Rene Thom, it confronts major examples like plant growth and shape, intra-cellular organization, evolution of living forms or motifs generated by crystals. A book essential to understand universal principles at work in the shapes and patterns surrounding us but also to avoid spurious analogies.
Why are we alive? Most things in the universe aren't. And if you trace the evolutionary history of plants and animals back far enough, you will find that, at some point, neither were we. Scientists have wrestled with this problem for centuries, and no one has been able to offer a credible theory. But in 2013, at just 30 years old, biophysicist Jeremy England published a paper that has utterly upended the ongoing study of life's origins. In Every Life Is on Fire, he describes, for the first time, his highly publicized theory known as dissipative adaptation. In any disordered system, matter clumps together and breaks apart, mostly randomly, without consequence. But some of the clumps that form are momentarily better at doing one specific job: dissipating energy. These structures are less likely to fall apart. Over time, they become better at both withstanding the disorder surrounding them and creating copies of themselves. From this deep insight, grounded in thermodynamics, England is able to isolate the emergence of the first life-like behaviors. Scientists have always thought that life began as a stroke of spectacular luck. But in fact, life may be inevitable, a product of the iron physical laws of the universe. England is both a world-class physicist and an ordained rabbi, and so his enquiry doesn't end with the physics of life. We ask questions like "How did life begin?" not just for the fun of scientific inquiry, but because we want a deeper understanding of who we are and why we're here. Even if physics can explain how life-like behaviors emerged, England doubts that reducing life down to the energy flows of a bunch of microscopic particles can ever give us a satisfying answer to what it means to be alive?. He believes that life is fundamentally a philosophical distinction, not a natural one. So before we can seriously look for life's physical origins, we must first make basic choices about what we think life means. This is something researchers often fail to recognize, and it is why, throughout In Every Life Is on Fire, England informs the premises of his theory with a careful exploration of what life is for. For anyone who reads this book, no matter their creed, In Every Life Is On Fire offers a rare work of popular science that explores not just what science does, but how it imbues our lives with meaning.
This book focuses on the study of how the properties of nanodiscs, such as lipid composition and size, influence the function of the embedding integral membrane protein, bacteriorhodopsin. The author performed systematic studies to show that the lipid composition and the charge of the hydrophobic head and the structure of hydrophilic tails affect the photocycle pathway of bacteriorhodopsin, which is closely associated with its proton-pumping activity. Furthermore, the author demonstrated a highly efficient method for extracting membrane proteins directly from the biological membrane, preserving protein conformation, function and essential native lipids. This book demonstrates optimization and sample preparation, and presents practical methods of preparing membrane protein-embedded nanodisc samples for biophysical studies, which benefit structural and functional studies in the field of membrane protein characterization, both. |
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