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Books > Science & Mathematics > Physics > Applied physics & special topics > Biophysics
This book provides an introduction to the significant role of physics in evolution, based on the ideas of matter and energy resource flow, organism self-copying, and ecological change. The text employs these ideas to create quantitative models for important evolutionary processes. Many fields of science and engineering have come up against the problem of complex design-when details become so numerous that computer power alone cannot make progress. Nature solved the complex-design problem using evolution, yet how it did so has been a mystery. Both laboratory experiments and computer-simulation attempts eventually stopped evolving. Something more than Darwin's ideas of heredity, variation, and selection was needed. The solution is that there is a fourth element to evolution: ecological change. When a new variation is selected, this can change the ecology, and the new ecology can create new opportunities for even more new variations to be selected. Through this endless cycle, complexity can grow automatically. This book uses the physics of resource flow to describe this process in detail, developing quantitative models for many evolutionary processes, including selection, multicellularity, coevolution, sexual reproduction, and the Serengeti Rules. The text demonstrates that these models are in conceptual agreement with numerous examples of biological phenomena, and reveals, through physics, how complex design can arise naturally. This will serve as a key text on the part physics plays in evolution, and will be of great interest to students at the university level and above studying biophysics, physics, systems biology, and related fields.
Novel Nanomaterials for Biomedical, Environmental, and Energy Applications is a comprehensive study on the cutting-edge progress in the synthesis and characterization of novel nanomaterials and their subsequent advances and uses in biomedical, environmental and energy applications. Covering novel concepts and key points of interest, this book explores the frontier applications of nanomaterials. Chapters discuss the overall progress of novel nanomaterial applications in the biomedical, environmental and energy fields, introduce the synthesis, characterization, properties and applications of novel nanomaterials, discuss biomedical applications, and cover the electrocatalytical and photothermal effects of novel nanomaterials for efficient energy applications. The book will be invaluable to academic researchers and biomedical clinicians working with nanomaterials.
This book provides an introduction to the significant role of physics in evolution, based on the ideas of matter and energy resource flow, organism self-copying, and ecological change. The text employs these ideas to create quantitative models for important evolutionary processes. Many fields of science and engineering have come up against the problem of complex design-when details become so numerous that computer power alone cannot make progress. Nature solved the complex-design problem using evolution, yet how it did so has been a mystery. Both laboratory experiments and computer-simulation attempts eventually stopped evolving. Something more than Darwin's ideas of heredity, variation, and selection was needed. The solution is that there is a fourth element to evolution: ecological change. When a new variation is selected, this can change the ecology, and the new ecology can create new opportunities for even more new variations to be selected. Through this endless cycle, complexity can grow automatically. This book uses the physics of resource flow to describe this process in detail, developing quantitative models for many evolutionary processes, including selection, multicellularity, coevolution, sexual reproduction, and the Serengeti Rules. The text demonstrates that these models are in conceptual agreement with numerous examples of biological phenomena, and reveals, through physics, how complex design can arise naturally. This will serve as a key text on the part physics plays in evolution, and will be of great interest to students at the university level and above studying biophysics, physics, systems biology, and related fields.
Key features: Organised and centred around analysis techniques, not traditional Mechanics and E&M. Presents a unified approach, in a different order, meaning that the same laboratories, equipment, and demonstrations can be used when teaching the course. Demonstrates to students that the analysis and concepts they are learning are critical to the understanding of biological systems.
This thorough book explores some of the most important methods and concepts affecting the quantitative analysis of the transport, targeting, and disposition of chemicals within cells, which in turn impact the macroscopic pharmacokinetics of chemical agents in the whole organism. The first half of the volume focuses on small organic molecules with drug-like characteristics, while the second half delves into the cellular pharmacokinetics of biologics and other macromolecules, including peptide therapeutics, cyclotides, antibodies, as well as nanoparticles, thus creating a comprehensive treatise that approaches cellular pharmacokinetics from the different perspectives of pharmaceutical scientists, chemical biologists, medicinal chemists, and protein engineers dealing with very different chemical agents spanning a wide range of sizes, physicochemical properties, and targeting mechanisms. Written for the Methods in Pharmacology and Toxicology series, chapters provide the kind of key detail and expert implementation advice that leads to excellent results in the lab. Synthetic biologists, biophysicists, and bioengineers are amongst the long list of scientists who could benefit from reading this book or from using it as a textbook. Authoritative and practical, Quantitative Analysis of Cellular Drug Transport, Disposition, and Delivery builds on a long history of drug development and the adding of quantitative methods at the cellular scale in order to inspire new approaches to drug development that are better able to take advantage of phenomena such as soluble-to-insoluble phase transitions or bispecific targeting, which could ultimately be exploited for the development of more effective drug delivery systems and therapeutic agents.
This book provides systematic knowledge of basic principles in the design of fluorescence sensing and imaging techniques together with critical analysis of recent developments. Fluorescence is the most popular technique in chemical and biological sensing because of its ultimate sensitivity, high temporal and spatial resolution and versatility that enables imaging within the living cells. It develops rapidly in the directions of constructing new molecular recognition units, new fluorescence reporters and in improving sensitivity of response up to detection of single molecules. Its application areas range from control of industrial processes to environment monitoring and clinical diagnostics. Being a guide for students and young researchers, it also addresses professionals involved in active basic and applied research. Making a strong link between education, research and product development, this book discusses prospects for future progress.
This book summarizes the latest findings by leading researchers in the field of photon science in Russia and Japan. It discusses recent advances in the field of photon science and chemistry, covering a wide range of topics, including photochemistry and spectroscopy of novel materials, magnetic properties of solids, photobiology and imaging, and spectroscopy of solids and nanostructures. Based on lectures by respected scientists at the forefront of photon and molecular sciences, the book helps keep readers abreast of the current developments in the field.
Provides derivation of the models used for calculating the risk and hazard of central oxygen toxicity Improves oxygen diving procedures described in the US Navy Diving Manual Includes procedures applicable to undertaking nitrox dives in combination with oxygen dives Pitches the material at highest technology readiness levels i.e. 9 TRL Aims to increase tactical capabilities of conducting diving special operations
Key features: Organised and centred around analysis techniques, not traditional Mechanics and E&M. Presents a unified approach, in a different order, meaning that the same laboratories, equipment, and demonstrations can be used when teaching the course. Demonstrates to students that the analysis and concepts they are learning are critical to the understanding of biological systems.
This book covers recent developments in the non-standard asymptotics of the mathematical narrow escape problem in stochastic theory, as well as applications of the narrow escape problem in cell biology. The first part of the book concentrates on mathematical methods, including advanced asymptotic methods in partial equations, and is aimed primarily at applied mathematicians and theoretical physicists who are interested in biological applications. The second part of the book is intended for computational biologists, theoretical chemists, biochemists, biophysicists, and physiologists. It includes a summary of output formulas from the mathematical portion of the book and concentrates on their applications in modeling specific problems in theoretical molecular and cellular biology. Critical biological processes, such as synaptic plasticity and transmission, activation of genes by transcription factors, or double-strained DNA break repair, are controlled by diffusion in structures that have both large and small spatial scales. These may be small binding sites inside or on the surface of the cell, or narrow passages between subcellular compartments. The great disparity in spatial scales is the key to controlling cell function by structure. This volume reports recent progress on resolving analytical and numerical difficulties in extracting properties from experimental data, biophysical models, and from Brownian dynamics simulations of diffusion in multi-scale structures.
This book explores various aspects of biophysics, from neurobiology to quantum biology and the consciousness of human beings and in the universe. It examines eight different areas of natural intelligence, ranging from time crystals found in chemical biology, to the vibrations and the resonance of proteins, and also discusses hierarchical communication in various biological systems. Written by senior and experts in the field in language that is lucid and easy to understand, it is a valuable reference resource for researchers and practitioners in academia and industry.
Probably one of the most fashionable areas in the physical sciences today, 'Soft Condensed Matter' provides an excellent introduction to the topic, and includes colloids, polymers, liquid crystals, and amphiphiles. It is suitable for advanced undergraduate and beginning graduate students of physics, chemistry, materials science and chemical engineering.
Basic Biotechnique for Bioprocess and Bioentrepreneurship deals with the entire field of industrial biotechnology, starting from basic laboratory techniques, to scale-up, process development, demonstration and commercialization. The book compiles currently scattered materials on the topic and updates information based on practical experience and requirements.
This book provides an interesting snapshot of recent advances in the field of single molecule nanosensing. The ability to sense single molecules, and to precisely monitor and control their motion is crucial to build a microscopic understanding of key processes in nature, from protein folding to chemical reactions. Recently a range of new techniques have been developed that allow single molecule sensing and control without the use of fluorescent labels. This volume provides an overview of recent advances that take advantage of micro- and nanoscale sensing technologies and provide the prospect for rapid future progress. The book endeavors to provide basic introductions to key techniques, recent research highlights, and an outlook on big challenges in the field and where it will go in future. It is a valuable contribution to the field of single molecule nanosensing and it will be of great interest to graduates and researchers working in this topic.
This book examines the human auditory effects of exposure to directed beams of high-power microwave pulses, which research results have shown can cause a cascade of health events when aimed at a human subject or the subject's head. The book details multidisciplinary investigations using physical theories and models, physiological events and phenomena, and computer analysis and simulation. Coverage includes brain anatomy and physiology, dosimetry of microwave power deposition, microwave auditory effect, interaction mechanisms, shock/pressure wave induction, Havana syndrome, and application in microwave thermoacoustic tomography (MTT). The book will be welcomed by scientists, academics, health professionals, government officials, and practicing biomedical engineers as an important contribution to the continuing study of the effects of microwave pulse absorption on humans.
Features * The first collective book combining accumulated knowledge and experience in the field of diabetes research using biophotonics. * Contributions from leading experts in the field. * Combines the theoretical base of the described methods and approaches, as well as providing valuable practical guidance and the latest research from experimental studies.
On the molecular scale all living processes must be understood in terms of electromagnetic fields and forces. The first half of the present book is a treatment of the electromagnetic theory suited to students trained in chemistry or biology. The second half treats biological topics as applications of the theory. These can also serve as an introduction to biology for students of the physical sciences.
On the molecular scale all living processes must be understood in terms of electromagnetic fields and forces. The first half of this unique new text deals with the theory of electromagnetism suited to students trained in chemistry or biology. The second part treats biological topics as applications of the theory. These can also serve as an introduction to biology for students of the physical sciences.
X-ray imaging is a corner stone of breast cancer diagnosis. By exploiting the phase shift of X-rays rather than their attenuation, phase-contrast tomography has the potential to dramatically increase the visibility of small and low contrast features, thus leading to better diagnosis. This thesis presents research on the first synchrotron-based project developing a clinical phase-contrast breast computed tomography (CT) setup at Elettra, the Italian Syncrotron Radiation Facility. This book includes a comprehensive theoretical background on propagation-based phase-contrast imaging, exploring and extending the most recent image formation models. Along with theory, many practical implementation and optimization issues, ranging from detector-specific processing to setup geometry, are tackled on the basis of a large number of experimental evidences. Most of the modelling results and data analysis have general validity, being a valuable framework for optimization of phase-contrast setups. Results obtained at synchrotron are also compared with "real world" laboratory sources: both a first-of-its-kind comparison with one of the few hospital breast CT systems and a state-of-the-art implementation of monochromatic phase-contrast micro-tomography with a conventional rotating anode source are presented. On a more general level, this work sheds a light on the importance of synchrotron-based clinical programs, which are key to trigger the long-anticipated transition of phase-contrast imaging from synchrotrons to hospitals.
This book presents not only the simultaneous combination of optical methods based on holographic principles for marker-free imaging, real-time trapping, identification and tracking of micro objects, but also the application of substantial low coherent light sources and non-diffractive beams. It first provides an overview of digital holographic microscopy (DHM) and holographic optical tweezers as well as non-diffracting beam types for minimal-invasive, real-time and marker-free imaging as well as manipulation of micro and nano objects. It then investigates the design concepts for the optical layout of holographic optical tweezers (HOTs) and their optimization using optical simulations and experimental methods. In a further part, the book characterizes the corresponding system modules that allow the addition of HOTs to commercial microscopes with regard to stability and diffraction efficiency. Further, based on experiments and microfluidic applications, it demonstrates the functionality of the combined setup, and discusses several types of non-diffracting beams and their application in optical manipulation. The book shows that holographic optical tweezers, including several non-diffracting beam types like Mathieu beams, combined parabolic and Airy beams, not only open up the possibility of generating efficient multiple dynamic traps for micro and nano particles with forces in the pico and nano newton range, but also the opportunity to exert optical torque with special beams like Bessel beams, which can facilitate the movement and rotation of particles by generating microfluidic flows. The last part discusses the potential use of a slightly modified DHM-HOT-system to explore the functionality of direct laser writing based on a two photon absorption process in a negative photoresist with a continuous wave laser
This book presents cutting-edge research on the use of physical and mathematical formalisms to model and quantitatively analyze biological phenomena ranging from microscopic to macroscopic systems. The systems discussed in this compilation cover protein folding pathways, gene regulation in prostate cancer, quorum sensing in bacteria to mathematical and physical descriptions to analyze anomalous diffusion in patchy environments and the physical mechanisms that drive active motion in large sets of particles, both fundamental descriptions that can be applied to different phenomena in biology. All chapters are written by well-known experts on their respective research fields with a vast amount of scientific discussion and references in order the interested reader can pursue a further reading. Given these features, we consider Quantitative Models for Microscopic to Macroscopic Biological Macromolecules and Tissues as an excellent and up-to-date resource and reference for advanced undergraduate students, graduate students and junior researchers interested in the latest developments at the intersection of physics, mathematics, molecular biology, and computational sciences. Such research field, without hesitation, is one of the most interesting, challenging and active of this century and the next.
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 talks about photoplethysmography (PPG) techniques based on computer-aided data processing. In particular, it presents the results of a co-operative Indo-German project on the topic between Indian Institute of Technology at Chennai and RWTH Aachen University. Measuring system design, experimental details and some preliminary results obtained so far within the framework of this project are presented here. From the investigations carried out so far using the PPG sensors in conjunction with breathing sensors, it has been possible to monitor the 0.125 to 0.15 Hz rhythms in the arterial volumetric changes and to study the influence of breathing on them. These rhythms, which according to medical experts have relevance to psychosomatic conditions e.g. stress or relaxation, can also be addressed to by ancient Indian practices like yoga and meditation. This book presents the results of studying the effects of Indian relaxation techniques like pranayama, meditation, etc. in comparison to western relaxation techniques like autogenic training. So far it has been established that the Indian techniques of relaxation like yoga and meditation are very effective in generating low frequency rhythms in the skin perfusion as monitored by optical sensors. According to medical experts, these low frequency rhythms have a very important bearing on the human physiology and have potential therapeutic implications. This book is meant to provide an overview of the current state-of-knowledge and encourage the next generation of scientists/engineers to carry this work forward, especially on the novel PPG application fields that are of growing importance like pain and stress assessment, detection of peripheral venous saturation and local arterio-venous oxygen consumption as well as contactless space resolved skin perfusion studies with modern camera based PPG technology.
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