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Books > Science & Mathematics

Connections, Definite Forms, and Four-Manifolds (Hardcover): Ted Petrie, John Randall Connections, Definite Forms, and Four-Manifolds (Hardcover)
Ted Petrie, John Randall
R2,647 Discovery Miles 26 470 Ships in 10 - 15 working days

The central theme of this book is the study of self-dual connections on four-manifolds. The author's aim is to present a lucid introduction to moduli space techniques (for vector bundles with SO (3) as structure group) and to apply them to four-manifolds. The authors have adopted a topologists' perspective. For example, they have included some explicit calculations using the Atiyah-Singer index theorem as well as methods from equivariant topology in the study of the topology of the moduli space. Results covered include Donaldson's Theorem that the only positive definite form which occurs as an intersection form of a smooth four-manifold is the standard positive definite form, as well as those of Fintushel and Stern which show that the integral homology cobordism group of integral homology three-spheres has elements of infinite order. Little previous knowledge of differential geometry is assumed and so postgraduate students and research workers will find this both an accessible and complete introduction to currently one of the most active areas of mathematical research.

Phytochemistry of Fruits and Vegetables (Hardcover): F.A.Tomas- Barberan, R.J. Robins Phytochemistry of Fruits and Vegetables (Hardcover)
F.A.Tomas- Barberan, R.J. Robins
R6,392 Discovery Miles 63 920 Ships in 10 - 15 working days

Recent advances in genetic engineering and in the chemistry and biochemistry of fruit and vegetables have radically changed our understanding of the mechanisms underlying these processes, and the potential for modification of the products themselves. This is the first book to examine these topics and address the role of fresh fruits and vegetables in a healthy diet and the prevention of cancer and coronary diseases. The main focus is on the secondary metabolites which are responsible for quality characteristics including color, aroma, and flavor, and their nutritional importance and role in the prevention of cancer and cardiovascular diseases. The book also explores how the post-harvest technological treatments to which these commodities are submitted can cause changes in secondary metabolism, with consequences for the quality of the product.

Advanced Secure Optical Image Processing for Communications (Paperback): Ayman Al Falou Advanced Secure Optical Image Processing for Communications (Paperback)
Ayman Al Falou
R770 Discovery Miles 7 700 Ships in 10 - 15 working days
Ionization and Ion Transport - A primer for the study of non-equilibrium, low-temperature gas discharges and plasmas... Ionization and Ion Transport - A primer for the study of non-equilibrium, low-temperature gas discharges and plasmas (Paperback)
David B Go
R750 Discovery Miles 7 500 Ships in 10 - 15 working days
Stereochemistry and Global Connectivity - The Legacy of Ernest L. Eliel Volume 2 (Hardcover): H.N. Cheng, Cynthia A. Maryanoff,... Stereochemistry and Global Connectivity - The Legacy of Ernest L. Eliel Volume 2 (Hardcover)
H.N. Cheng, Cynthia A. Maryanoff, Bradley D. Miller, Diane Grob Schmidt
R4,022 Discovery Miles 40 220 Ships in 10 - 15 working days

A major strength of American Chemical Society (ACS) is the large number of volunteers who help to grow and sustain the organization, from local sections to technical divisions, from regional to national meetings, from task forces to national committees, and from conducting research to writing and reviewing manuscripts for journals. Some of them spend literally thousands of hours on behalf of ACS and the global chemistry enterprise, helping students or fellow scientists, organizing meetings and symposia, and reaching out to the local communities. One of the people who excelled in these efforts was the late Prof. Ernest L. Eliel. For many years he taught at the University of Notre Dame and the University of North Carolina and was an acknowledged leader in organic stereochemistry and conformational analysis. He was also a leader at ACS, serving as ACS President in 1992 and Chair of ACS Board of Directors in 1987-89. Unfortunately Prof. Eliel died in 2008, but the ACS held a symposium in 2016 honoring his work. This book features two volumes highlighting stereochemistry and global connectivity, which represent two of the key legacies of Prof. Eliel. Because stereochemistry is a fundamental chemistry concept, ongoing research is carried out in different subfields of chemistry (such as organic, medicinal, carbohydrates, polymers), using various analytical techniques (such as NMR, X-ray crystallography, and circular dichroism). The two volumes of this book contain many research papers that represent cutting-edge research in all the above areas. Because chemistry is now a world-wide enterprise, global connectivity is important to chemistry practitioners, and the chapters on international activities should be of great interest as well.

Phenotypic Variation - Exploration and Functional Genomics (Hardcover): Moyra Smith Phenotypic Variation - Exploration and Functional Genomics (Hardcover)
Moyra Smith
R2,372 Discovery Miles 23 720 Ships in 10 - 15 working days

During the past two decades international collaborative studies have yielded extensive information on genome sequences, genome architecture and their variations. The challenge we now face is to understand how these variations impact structure and function of organelles, physiological systems and phenotype. The goal of this book is to present steps in the pathways of exploration to connect genotype to phenotype and to consider how alterations in genomes impact disease.
In this book the author reviews published research in functional genomics carried out primarily since 2006 that sheds light on aspects of phenotypic variation. The goal of functional genomics is to gain insight into mechanisms through which specific changes in genome transcripts and regulation induce changes in proteins, pathways, organelles, cellular and tissue functions, morphology and ultimately in phenotype.
Topics reviewed include investigations in genome architecture, gene structure, gene regulation epigenetic modifications and function of organelles including mitochondria, and the endosome lysosome system. New insights into neurodevelopment and neurobehavioral disorders gained through functional genomic research are presented. Aspects of genomic studies in complex common diseases are reviewed. Molecular genetic variations and aberrations in cellular mechanisms involved in protein quality surveillance play a role in late onset diseases and one chapter deals with this topic. Molecular analyses of genes and proteins continue to shed light on the pathogenesis of malformation syndromes and specific examples of such studies are presented.
There is growing evidence that late onset disorders such as Parkinson disease, are frequently the end result of defects in functioning of components in different pathways and examples of these are discussed. There is evidence that genetic variation determines differences in response to environmental insults. Genetic variations in complement factor genes are an example of this and are discussed in the context of macular degeneration and pathogenesis of hemolytic uremic syndrome in response exposure to E coli Shiga toxin. In the final chapter the author briefly summarizes key features of the cascade of events that constitute functional genomics.

Investigating Classroom Myths through Research on Teaching and Learning (Hardcover): Diane Bunce Investigating Classroom Myths through Research on Teaching and Learning (Hardcover)
Diane Bunce
R5,466 Discovery Miles 54 660 Ships in 10 - 15 working days

This book is meant to be a companion volume for the ACS Symposium Series Book entitled Nuts and Bolts of Chemical Education Research. In the Nuts and Bolts book (edited by Diane M. Bunce and Renee Cole), readers were presented with information on how to conduct quality chemical education research. In the Myth book, exemplars of chemical education research are featured. In the cases where the chapter in the book is describing research that has already been published (typically in the Journal of Chemical Education), additional information is provided either in terms of research questions investigated that were not reported in the published article or background information on decisions made in the research that helped the investigation. The main focus of this type of discussion is to engage the reader in the reality of doing chemical education research including a discussion of the authors' motivation. It is expected that these two books could be used as textbooks for graduate chemical education courses showing how to do chemical education research and then providing examples of quality research.

Understanding Stellar Evolution (Paperback): H.J.G.L.M. Lamers Understanding Stellar Evolution (Paperback)
H.J.G.L.M. Lamers
R773 Discovery Miles 7 730 Ships in 10 - 15 working days
Theories of Matter, Space and Time - Classical theories (Paperback): N. Evans Theories of Matter, Space and Time - Classical theories (Paperback)
N. Evans
R750 Discovery Miles 7 500 Ships in 10 - 15 working days
Differential Topology and Quantum Field Theory (Paperback): Charles Nash Differential Topology and Quantum Field Theory (Paperback)
Charles Nash
R1,358 Discovery Miles 13 580 Ships in 10 - 15 working days

The remarkable developments in differential topology and how these recent advances have been applied as a primary research tool in quantum field theory are presented here in a style reflecting the genuinely two-sided interaction between mathematical physics and applied mathematics. The author, following his previous work (Nash/Sen: Differential Topology for Physicists, Academic Press, 1983), covers elliptic differential and pseudo-differential operators, Atiyah-Singer index theory, topological quantum field theory, string theory, and knot theory. The explanatory approach serves to illuminate and clarify these theories for graduate students and research workers entering the field for the first time.
Key Features
* Treats differential geometry, differential topology, and quantum field theory
* Includes elliptic differential and pseudo-differential operators, Atiyah-Singer index theory, topological quantum field theory, string theory, and knot theory
* Tackles problems of quantum field theory using differential topology as a tool

Active Control of Sound (Hardcover): P.A. Nelson Active Control of Sound (Hardcover)
P.A. Nelson
R1,375 Discovery Miles 13 750 Ships in 10 - 15 working days

This book describes modern techniques for reducing the level of airborne noise through the introduction of sound radiated by additional secondary sources, bringing together the results of contemporary research in this area. It is the combination of the physical properties of sound fields and modern digital signal processing technology that has made the active control of sound a practical proposition in a number of important applications. The book covers both these aspects of the subject, initially at a fundamental level, and then in detail in later chapters. The structure of the book is such that it should be suitable for both those seeking a basic understanding of the subject and as a reference for researchers in the field. One of the key features of the work is thus the unified presentation of material from the two disciplines of acoustics and signal processing.

Journey Into Reciprocal Space - A crystallographer's perspective (Paperback): A.M. Glazer Journey Into Reciprocal Space - A crystallographer's perspective (Paperback)
A.M. Glazer
R758 Discovery Miles 7 580 Ships in 10 - 15 working days
Sun Protection - A risk management approach (Paperback): B. Diffey Sun Protection - A risk management approach (Paperback)
B. Diffey
R757 Discovery Miles 7 570 Ships in 10 - 15 working days
Flavor of Dairy Products (Hardcover): Keith R. Cadwallader, Mary Anne Drake, Robert J. McGorrin Flavor of Dairy Products (Hardcover)
Keith R. Cadwallader, Mary Anne Drake, Robert J. McGorrin
R2,260 Discovery Miles 22 600 Ships in 10 - 15 working days

In the past, the stability of milk and milk products was the primary consideration, but this is no longer the principal objective due to the evolution of modern sanitary practices as well as pasteurization. Today, the manufacture of dairy products of consistently good flavor and texture is crucial. In previous flavor studies, researchers identified hundreds of volatile compounds, with little or no attention paid to their sensory contribution to overall flavor of dairy products. The availability of powerful chromatographic separation techniques like high resolution gas chromatography in combination with mass spectrometry and olfactory detection ports have revolutionized the work on characterization of dairy flavor. This along with recent developments in sensory methods and our increased knowledge about the genomics of diary culture organisms have allowed great advancements in our understanding of dairy flavor chemistry. Flavor of Dairy Products covers the evolution of dairy flavor research and presents updated information in the areas of instrumental analysis, biochemistry, processing and shelf-life issues related to the flavor of dairy products.

Charged Beam Dynamics, Particle Accelerators and Free Electron Lasers (Paperback): G. Dattoli Charged Beam Dynamics, Particle Accelerators and Free Electron Lasers (Paperback)
G. Dattoli
R779 Discovery Miles 7 790 Ships in 10 - 15 working days
Flora of North America, North of Mexico - Volume 24: Magnoliophyta: Commelinidae (in part): Poaceae, part 1 (Hardcover): Flora... Flora of North America, North of Mexico - Volume 24: Magnoliophyta: Commelinidae (in part): Poaceae, part 1 (Hardcover)
Flora of North America Editorial Committee, Mary E Barkworth, Kathleen M. Capels, Sandy Long, Laurel K. Anderton
R2,541 Discovery Miles 25 410 Ships in 10 - 15 working days

Flora of North America brings together for the first time ever in a concise and easy to understand format information on all of the plants growing spontaneously in North America north of Mexico. Volume 24 of Flora North America is one of two volumes on grasses to be published in this series (Volume 25, though it follows sequentially, was published in 2003). Together they will provide a comprehensive, authoritative, illustrated account of this important group of plants. Most of the species treated are either native to North America north of Mexico or are introduced species that are now established in the region, but there are many that do not fit into these categories. Among the additional species are several that the USDA has identified as major weed threats; and others that are known only as cultivated plants, some being cultivated for their ornamental value, others as sources for human food or animal forage. For instance, volume 24 includes such ecologically important genera as Elymus (wheatgrasses), Poa (bluegrasses), and Festuca (fescues), economically important species such as Triticum (wheat), Hordeum (barley), Oryza (rice), and Zizania (wild rice), several ornamental species, including some bamboos, and noxious weeds such as Elymus repens (quackgrass), and Bromus tectorum (cheatgrass).
The volume includes identification keys, descriptions, line drawings, and ecological characteristics for each of the species; distribution maps for the native and established species; and a list of commonly encountered synonyms for the accepted names. The treatments, each of which has been extensively reviewed, are based on a combination of original observations and critical review of the literature.

Single and Multicomponent Digital Optical Signal Analysis - Estimation of phase and its derivatives (Paperback): P. Rastogi, R... Single and Multicomponent Digital Optical Signal Analysis - Estimation of phase and its derivatives (Paperback)
P. Rastogi, R Kulkarni
R762 Discovery Miles 7 620 Ships in 10 - 15 working days
Frontiers in Molecular Design and Chemical Information Science - Herman Skolnik Award Symposium 2015 - Jurgen Bajorath... Frontiers in Molecular Design and Chemical Information Science - Herman Skolnik Award Symposium 2015 - Jurgen Bajorath (Hardcover)
Rachelle J. Bienstock, Veerabahu Shanmugasundaram, Jurgen Bajorath
R4,846 Discovery Miles 48 460 Ships in 10 - 15 working days

This book focuses on broadly defined areas of chemical information science- with special emphasis on chemical informatics- and computer-aided molecular design. The computational and cheminformatics methods discussed, and their application to drug discovery, are essential for sustaining a viable drug development pipeline. It is increasingly challenging to identify new chemical entities and the amount of money and time invested in research to develop a new drug has greatly increased over the past 50 years. The average time to take a drug from clinical testing to approval is currently 7.2 years. Therefore, the need to develop predictive computational techniques to drive research more efficiently to identify compounds and molecules, which have the greatest likelihood of being developed into successful drugs for a target, is of great significance. New methods such as high throughput screening (HTS) and techniques for the computational analysis of hits have contributed to improvements in drug discovery efficiency. The SARMs developed by Jurgen and colleagues have enabled display of SAR data in a more transparent scaffold/functional SAR table. There are many tools and databases available for use in applied drug discovery techniques based on polypharmacology. The cheminformatics approaches and methodologies presented in this volume and at the Skolnik Award Symposium will pave the way for improved efficiency in drug discovery. The lectures and the chapters also reflect the various aspects of scientific enquiry and research interests of the 2015 Herman Skolnik award recipient.

Radiative Properties of Semiconductors (Paperback): N.M. Ravindra Radiative Properties of Semiconductors (Paperback)
N.M. Ravindra
R753 Discovery Miles 7 530 Ships in 10 - 15 working days
The Origins of Evolutionary Innovations - A Theory of Transformative Change in Living Systems (Hardcover, New): Andreas Wagner The Origins of Evolutionary Innovations - A Theory of Transformative Change in Living Systems (Hardcover, New)
Andreas Wagner
R4,853 Discovery Miles 48 530 Ships in 10 - 15 working days

The history of life is a nearly four billion year old story of transformative change. This change ranges from dramatic macroscopic innovations such as the evolution of wings or eyes, to a myriad of molecular changes that form the basis of macroscopic innovations. We are familiar with many examples of innovations (qualitatively new phenotypes that can provide a critical advantage) but have no systematic understanding of the principles that allow organisms to innovate. This book proposes several such principles as the basis of a theory of innovation, integrating recent knowledge about complex molecular phenotypes with more traditional Darwinian thinking. Central to the book are genotype networks: vast sets of connected genotypes that exist in metabolism and regulatory circuitry, as well as in protein and RNA molecules. The theory can successfully unify innovations that occur at different levels of organization. It captures known features of biological innovation, including the fact that many innovations occur multiple times independently, and that they combine existing parts of a system to new purposes. It also argues that environmental change is important to create biological systems that are both complex and robust, and shows how such robustness can facilitate innovation. Beyond that, the theory can reconcile neutralism and selectionism, as well as explain the role of phenotypic plasticity, gene duplication, recombination, and cryptic variation in innovation. Finally, its principles can be applied to technological innovation, and thus open to human engineering endeavours the powerful principles that have allowed life's spectacular success.

Lectures on General Relativity, Cosmology and Quantum Black Holes (Paperback): By:D.R.I. Lectures on General Relativity, Cosmology and Quantum Black Holes (Paperback)
By:D.R.I.
R776 Discovery Miles 7 760 Ships in 10 - 15 working days
Remediation of Hazardous Waste in the Subsurface - Bridging Flask and Field (Hardcover, New): Clayton J. Clark, Angela... Remediation of Hazardous Waste in the Subsurface - Bridging Flask and Field (Hardcover, New)
Clayton J. Clark, Angela Stephenson Lindner
R5,104 Discovery Miles 51 040 Ships in 10 - 15 working days

This book addresses one of the most challenging problems that plagues the environmental field today-subsurface contamination. The past three decades have ushered in various methods for removal of organic and inorganic contaminants from the subsurface to varying degrees of effectiveness. Because of the site-to-site variability in the nature of contamination characteristics, the pattern of waste disposal and accidental releases, the site characteristics and thus contaminant behavior, and hydrologic conditions, predicting the effectiveness of one treatment method over another is a daunting task. Field demonstration of innovative technologies is a key step in their development, however, only after successful scale-up from laboratory testing. This book features chapters written by researchers who have linked laboratory- and field-scales in efforts to find creative, cost-effective methods for prediction of successful remediation of contaminated soil and ground water. State-of-the-art technologies using physicochemical removal methods and biological methods are discussed in the context of not only their effectiveness in remediating organic and inorganic wastes from various subsurface environments but also in terms of useful flask-scale methods for measuring and predicting their field-scale effectiveness. Chapters address sorption and hydrolysis of pesticides by organoclays, use of Fentons agents to destroy chlorinated solvents removed from the subsurface by granulated activated carbon, methanol flushing as a means of removing toxaphene from soils, natural attenuation as a method for effectiveness of remediation metals and biodegrading acid-mine drainage constituents, and biodegradation ofradiologically contaminated soils. Also addressed in this book are current and future methods of assessing microbiological activity potential and diversity and of modeling biodegradation, contaminant flux, and gaseous transport in the subsurface.

Developing the Virtues - Integrating Perspectives (Hardcover): Julia Annas, Darcia Narv aez, Nancy E. Snow Developing the Virtues - Integrating Perspectives (Hardcover)
Julia Annas, Darcia Narv aez, Nancy E. Snow
R2,736 Discovery Miles 27 360 Ships in 10 - 15 working days

Ethicists and psychologists have become increasingly interested in the development of virtue in recent years, approaching the topic from the perspectives of virtue ethics and developmental psychology respectively. Such interest in virtue development has spread beyond academia, as teachers and parents have increasingly striven to cultivate virtue as part of education and child-rearing. Looking at these parallel trends in the study and practice of virtue development, the essays in this volume explore such questions as: How can philosophical work on virtue development inform psychological work on it, and vice versa? How should we understand virtue as a dimension of human personality? What is the developmental foundation of virtue? What are the evolutionary aspects of virtue and its development? How is virtue fostered? How is virtue exemplified in behavior and action? How is our conception of virtue influenced by context and by developmental and social experiences? What are the tensions, impediments and prospects for an integrative field of virtue study? Rather than centering on each discipline, the essays in this volume are orgnaized around themes and engage each other in a broader dialogue. The volume begins with an introductory essay from the editors that explains the full range of philosophical and empirical issues that have surrounded the notion of virtue in recent years.

Uncertain Chances - Science, Skepticism, and Belief in Nineteenth-Century American Literature (Hardcover, New): Maurice S. Lee Uncertain Chances - Science, Skepticism, and Belief in Nineteenth-Century American Literature (Hardcover, New)
Maurice S. Lee
R2,583 Discovery Miles 25 830 Ships in 10 - 15 working days

The role of chance changed in the nineteenth century, and American literature changed with it. Long dismissed as a nominal concept, chance was increasingly treated as a natural force to be managed but never mastered. New theories of chance sparked religious and philosophical controversies while revolutionizing the sciences as probabilistic methods spread from mathematics, economics, and sociology to physics and evolutionary biology. Chance also became more visible in everyday life as Americans struggled to control its power through weather forecasting, insurance, game theory, statistics, military science, and financial strategy. Uncertain Chances shows how the rise of chance shaped the way nineteenth-century American writers faced questions of doubt and belief. Poe in his detective fiction critiques probabilistic methods. Melville in Moby-Dick and beyond struggles to vindicate moral action under conditions of chance. Douglass and other African American authors fight against statistical racism. Thoreau learns to appreciate the play between nature's randomness and order. Dickinson works faithfully to render poetically the affective experience of chance-surprise. These and other nineteenth-century writers dramatize the inescapable dangers and wonderful possibilities of chance. Their writings even help to navigate extremes that remain with us today-fundamentalism and relativism, determinism and chaos, terrorism and risk-management, the rational confidence of the Enlightenment and the debilitating doubts of modernity.

How to Build a Brain - A Neural Architecture for Biological Cognition (Hardcover, New): Chris. Eliasmith How to Build a Brain - A Neural Architecture for Biological Cognition (Hardcover, New)
Chris. Eliasmith
R4,157 Discovery Miles 41 570 Ships in 10 - 15 working days

In this book, Chris Eliasmith presents a new approach to understanding the neural implementation of cognition in a way that is centrally driven by biological considerations. He calls the general architecture that results from the application of this approach the Semantic Pointer Architecture (SPA), based on the Semantic Pointer Hypothesis. According to this hypothesis, higher-level cognitive functions in biological systems are made possible by semantic pointers. These pointers are neural representations that carry partial semantic content and can be built up into the complex representational structures necessary to support cognition. The SPA architecture demonstrates how neural systems generate, compose, and control the flow of semantics pointers. Eliasmith describes in detail the theory and empirical evidence supporting the SPA, and presents several examples of its application to cognitive modeling, covering the generation of semantic pointers from visual data, the application of semantic pointers for motor control, and most important, the use of semantic pointers for representation of language-like structures, cognitive control, syntactic generalization, learning of new cognitive strategies, and language-based reasoning. He agues that the SPA provides an alternative to the dominant paradigms in cognitive science, including symbolicism, connectionism, and dynamicism.

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