This volume supplements Volumes 63, 64, 87, and 249 of Methods in Enzymology. These volumes provide a basic source for the quantitative interpretation of enzyme rate data and the analysis of enzyme catalysis. Among the major topics covered are Engergetic Coupling in Enzymatic Reactions, Intermediates and Complexes in Catalysis, Detection and Properties of Low Barrier Hydrogen Bonds, Transition State Determination, and Inhibitors.
The critically acclaimed laboratory standard for more than forty years, Methods in Enzymology is one of the most highly respected publications in the field of biochemistry. Since 1955, each volume has been eagerly awaited, frequently consulted, and praised by researchers and reviewers alike. Now with more than 300 volumes (all of them still in print), the series contains much material still relevant today--truly an essential publication for researchers in all fields of life sciences.

The field of high performance computing achieved prominence through advances in electronic and integrated technologies beginning in the 1940s. Current times are very exciting and the years to come will witness a proliferation of the use of parallel and distributed systems. The scientific and engineering application domains have a key role in shaping future research and development activities in academia and industry, especially when the solution of large and complex problems must cope with harder and harder timing.
High Performance Scientific And Engineering Computing: Hardware/Software Support contains selected chapters on hardware/software support for high performance scientific and engineering computing from prestigious workshops in the fields such as PACT-SHPSEC, IPDPS-PDSECA and ICPP-HPSECA. This edited volume is basically divided into six main sections which include invited material from prominent researchers around the world. We believe all of these contributed chapters and topics not only provide novel ideas, new results and state-of-the-art techniques in this field, but also stimulate the future research activities in the area of high performance computing for science and engineering applications.
High Performance Scientific And Engineering Computing: Hardware/Software Support is designed for a professional audience, composed of researchers and practitioners in industry. This book is also suitable as a secondary text for graduate-level students in computer science and engineering.

A comprehensive tutorial for researchers and practitioners involved in surface science. The basics of the scanning probe microscopy techniques as well as material class-specific applications are thoroughly discussed. The book gives access to these methods for advanced students and allows researchers to apply these powerful atomic-resolution imaging techniques to new systems.

Too often, the study of science, math, and technology is limited to the major successes of the Western world. Yet people all over the world have observed and explored nature and developed technologies to help them in their everyday lives.

From the creators of the national bestseller and Parent's Choice Book Award -- winner The Explorabook (over one million copies sold) comes Math and Science Across Cultures, designed to help teachers, parents, and youth-group leaders use hands-on activities to explore the math and science of different cultural traditions, and to make these subjects more relevant and approachable for children of all backgrounds. With instructions in this book, you can:
-- Construct a Brazilian carnival instrument and investigate the science of sound.
-- Play a peg solitaire game from Madagascar and learn about mathematical patterns.
-- Experiment with a traditionally prepared cup of Chinese tea and learn about energy flow.
-- Count like an Egyptian, decipher Mayan mathematical symbols, and decode the ancient Inca number system of knotted cords.

This comprehensive reference illustrates optimal preparation methods in biological electron microscopy compared with common methodological problems. Not only will the basic methodologies of transmission electron microscopy like fixation, microtomy, and microscopy be presented, but the authors also endeavor to illustrate more specialized techniques such as negative staining, autoradiography, cytochemistry, immunoelectron microscopy, and computer-assisted image analysis.
Key Features
* Authored by the key leaders in the biological electron microscopy field
* Illustrates both optimal and suboptimal or artifactual results in a variety of electron microscopy disciplines
* Introduces students on how to read and interpret electron micrographs

Ribonucleic acids are central to cellular and molecular processes and perform vital functions in both structural and functional roles. RNA molecules form the bridge between the stable genetic information contained within DNA and enzymes and proteins that carry out much of the metabolism within the cell. Many of the sites of protein synthesis, the ribosomes within the cell, are composed of these ribonucleic acids as are the tRNA molecules that deliver the amino acid building blocks to the ribosomes. Of all the RNA species, the nucleic acid intermediate, messenger RNA, is a desirable source of material to biologists, since this reflects much of, what ultimately, is translated into enzymes and proteins. In order to determine the qualitative and quantitative changes in mRNA expression, a vast number of molecular biological techniques have been developed. Key molecular methods that provide the means to initially isolate and analyze RNA molecules are the focus of this volume. In putting together this collection of protocols, we have tried to provide techniques that are most applicable and widely used. In particular, there are a number of iso- tion techniques included that have been developed, modified, or adapted to enable extraction from a variety of cell types, organisms, or subcellular organelles. Successful isolation of intact RNA is an essential starting point for any sub- quent analysis. This is why we have aimed to make this section comprehensive. The analysis of RNA is the focus of the following chapters.

Presents recent developments in theoretical and experimental research of nanophotonics Discusses properties and features of nanophotonic devices, e.g. scanning near-field optical microscopy, nanofi ber/nanowire based photonic devices Illustrates the most promising nanophotonic devices and instruments and their application Suits well for researchers and graduates in nanophotonics field Contents Scanning near-field optical microscopy Nanofibers/nanowires and their applications in photonic components and devices Micro/nano-optoelectronic devices based on photonic crystal

This book represents the compilation of papers presented at the second Atomic Force Microscopy/Scanning Tunneling Microscopy (AFM/STM) Symposium, held June 7 to 9, 1994, in Natick, Massachusetts, at Natick Research, Development and Engineering Center, now part ofU.S. Army Soldier Systems Command. As with the 1993 symposium, the 1994 symposium provided a forum where scientists with a common interest in AFM, STM, and other probe microscopies could interact with one another, exchange ideas and explore the possibilities for future collaborations and working relationships. In addition to the scheduled talks and poster sessions, there was an equipment exhibit featuring the newest state-of-the-art AFM/STM microscopes, other probe microscopes, imaging hardware and software, as well as the latest microscope-related and sample preparation accessories. These were all very favorably received by the meeting's attendees. Following opening remarks by Natick's Commander, Colonel Morris E. Price, Jr., and the Technical Director, Dr. Robert W. Lewis, the symposium began with the Keynote Address given by Dr. Michael F. Crommie from Boston University. The agenda was divided into four major sessions. The papers (and posters) presented at the symposium represented a broad spectrum of topics in atomic force microscopy, scanning tunneling microscopy, and other probe microscopies.

Aquaculture is rapidly becoming a major source of fish protein used to meet the nutritional needs of humans. As the aquaculture industry grows, exposure of farmed fish to environmental contaminants, and the need for chemical therapeutic agents for fish, will increase. This book is designed to bring together authorities worldwide on the regulation of environmental contaminants and food chemicals and researchers investigating the metabolism and disposition of foreign chemicals (xenobiotics) in fish species.

Video microscopy is used extensively in many life and biomedical science disciplines today, and is a useful tool for both cell biologists and students. This book presents how to track the dynamic changes that take place in the structure of living cells and in reconstituted preparations using video and digital imaging microscopy. Basic information, principles, and applications are also covered, as well as more specialized video microscopy techniques.
Key Features
* Chapters cover the commonly used video technologies in biological research
* Nontechnical presentation of principles
* Emphasis on the practical aspects of instrument use
* Covers pitfalls in instrument uses that can lead to artifacts
* Authors are leaders in the design and application of video methods to biological microscopy
* Presentation of material tailored for the established researcher that has little experience with video methods
* Examples are extensively illustrated with photographs

In modern scanning electron microscopy, sample surface preparation is of key importance, just as it is in transmission electron microscopy. With the procedures for sample surface preparation provided in the present book, the enormous potential of advanced scanning electron microscopes can be realized fully. This will take the reader to an entirely new level of scanning electron microscopy and finely-detailed images never seen before. Written for: Scientists, practitioners, academic libraries, graduate students

The book deals mainly with direct mass determination by means of a conventional balances. It covers the history of the balance from the beginnings in Egypt earlier than 3000 BC to recent developments. All balance types are described with emphasis on scientific balances. Methods of indirect mass determination, which are applied to very light objects like molecules and the basic particles of matter and celestial bodies, are included. As additional guidance, today's manufacturers are listed and the profile of important companies is reviewed. Several hundred photographs, reproductions and drawings show instruments and their uses. This book includes commercial weighing instruments for merchandise and raw materials in workshops as well as symbolic weighing in the ancient Egyptian's ceremony of 'Weighing of the Heart', the Greek fate balance, the Roman Justitia, Juno Moneta and Middle Ages scenes of the Last Judgement with Jesus or St. Michael and of modern balances. The photographs are selected from the slide-archives of the late Richard Vieweg (1896-1972) (former President of the Physikalisch-Technische Bundesanstalt, Braunschweig, Germany), of the late Hans R. Jenemann (1920-1966) (former head of the Analytical Laboratory of Schott & Gen., Mainz, Germany) and of his wife Irene (1933-2008) and of Erich Robens.

Toxicity Assessment Alternatives: Methods, Issues, Opportunities contains a broad array of critical surveys, contributed by active and respected investigators, describing their research and offering updates on toxicity assessment alternatives, directions determined by current and future grant programs, opportunities for mechanistically based test methods to detect endocrine disruptor activity, the use of alternatives in the Department of Defense hazard assessment initiatives, and the issues and opportunities for validation and regulatory acceptance. Several of these advances make use oftransgenic models that reduce the time and cost of carcinogenicity testing. Others use tissue cultures for the assessment of endocrine disrupting chemicals. Cultures of human epidermal keratinocytes are applicable as models for sulfur mustard lesions, and in vitro protein denaturation is used as a chemical test for assessing the ocular and dermal irritation potential of cosmetic prod ucts. Molecular modeling is applied to explaining chemical toxicity. Commercially developed assay systems have undergone extensive evaluation by their manufacturers. Some of these await external valida tion, and others await acceptance by North American and European regulatory agencies. Toxicity Assessment Alternatives: Methods, Issues, Opportunities provides information from members of the scientific and regulatory communities on what has been achieved and what has been accepted in alternatives to animal testing."

Transmission electron microscopy (TEM) is now recognized as a crucial tool in materials science. This book, authored by a team of expert Chinese and international authors, covers many aspects of modern electron microscopy, from the architecture of novel electron microscopes, advanced theories and techniques in TEM and sample preparation, to a variety of hands-on examples of TEM applications. Volume II illustrates the important role that TEM is playing in the development and characterization of advanced materials, including nanostructures, interfacial structures, defects, and macromolecular complexes.

Emily Calandrelli, MIT engineer and scientist, shares exhilarating experiments for junior scientists and their lab assistants, ranging from homemade ice cream to disappearing ink. The book features 50 experiments using easy-to-find grocery store items. Each experiment includes a scientific explanation, a Hypothesize section to record the scientist's assumptions, science vocabulary that applies STEM research to real life (did you know that ketchup is a non-Newtonian fluid?), and Try This! prompts with even more ways to experiment with your experiment. Let the science spark curiosity and critical thinking; grab your goggles and your trusted assistant and get started!

Transmission electron microscopy (TEM) is now recognized as a crucial tool in materials science. This book, authored by a team of expert Chinese and international authors, covers many aspects of modern electron microscopy, from the architecture of novel electron microscopes, advanced theories and techniques in TEM and sample preparation, to a variety of hands-on examples of TEM applications. Volume I concentrates on the newly developed concepts and methods which are making TEM a powerful and indispensible tool in materials science.

In 1957 two young scientists, Matthew Meselson and Frank Stahl, produced a landmark experiment confirming that DNA replicates as predicted by the double helix structure Watson and Crick had recently proposed. It also gained immediate renown as a "most beautiful" experiment whose beauty was tied to its simplicity. Yet the investigative path that led to the experiment was anything but simple, Frederic L. Holmes shows in this masterful account of Meselson and Stahl's quest. This book vividly reconstructs the complex route that led to the Meselson-Stahl experiment and provides an inside view of day-to-day scientific research--its unpredictability, excitement, intellectual challenge, and serendipitous windfalls, as well as its frustrations, unexpected diversions away from original plans, and chronic uncertainty. Holmes uses research logs, experimental films, correspondence, and interviews with the participants to record the history of Meselson and Stahl's research, from their first thinking about the problem through the publication of their dramatic results. Holmes also reviews the scientific community's reception of the experiment, the experiment's influence on later investigations, and the reasons for its reputation as an exceptionally beautiful experiment.

Fluorescence microscopy images can be easily integrated into current video and computer image processing systems. People like visual observation; they like to watch a television or computer screen, and fluorescence techniques are thus becoming more and more popular. Since true in vivo experiments are simple to perform, samples can be directly seen and there is always the possibility of manipulating the samples during the experiments; it is an ideal technique for biology and medicine. Images are obtained by a classical (now called wide-field) fluorescence microscope, a confocal scanning microscope, upright or inverted, with epifluorescence or transmission. Computerized image processing may improve definition, and remove glare and scattered light signal. It also makes it possible to compute ratio images (ratio imaging both in excitation and in emission) or lifetime imaging. Image analysis programs may supply a great deal of additional data of various types, starting with calculations of the number of fluorescent objects, their shapes, brightness, etc. Fluorescence microscopy data may be complemented by classical measurement in the cuvette yr by flow cytometry.

2. High Temperature UHV-STM System 264 3. Hydrogen Desorption Process on Si (111) Surface 264 4. (7x7) - (1 xl) Phase Transition on Si (111) Surface 271 Step Shifting under dc Electric Fields 275 5. 6. Conclusions 280 Acknowledgements and References 281 12. DYNAMIC OBSERVATION OF VORTICES IN SUPERCONDUCTORS USING ELECTRON WAVES 283 by Akira Tonomura 1. Introduction 283 2. Experimental Method 284 2. 1 Interference Microscopy 284 2. 2 Lorentz Microscopy 287 Observation of Superconducting Vortices 288 3. 3. 1 Superconducting Vortices Observed by Interference Microscopy 288 3. 1. 1 Profile Mode 288 3. 1. 2 Transmission Mode 291 3. 2 Superconducting Vortices Observed by Lorentz Microscopy 293 3. 3 Observation of Vortex Interaction with Pinning Centers 294 3. 3. 1 Surface Steps 295 3. 3. 2 Irradiated Point Defects 296 4. Conclusion 298 References 299 13. TEM STUDIES OF SOME STRUCTURALLY FLEXIBLE SOLIDS AND THEIR ASSOCIATED PHASE TRANSFORMATIONS 301 by Ray L. Withers and John G. Thompson 1. Introduction 301 2. Tetrahedrally Comer-Connected Framework Structures 302 3. Tetragonal a-PbO 311 4. Compositionally Flexible Anion-Deficient Fluorites and the "Defect Fluorite" to C-type Sesquioxide Transition 320 5. Summary and Conclusions 327 Acknowledgements and References 327 Author Index 331 Subject Index 333 List of Contributors A. ASEEV Institute of Semiconductor Physics, Russian Academy of Sciences Novosibirsk, 630090, pr. ac. , Lavrentjeva 13, RUSSIA E. BAUER Department of Physics and Astronomy, Arizona State University Tempe, AZ 85287-1504, U. S. A. G. H.

The purpose of Ribozyme Protocols is to provide a helpful compilation of protocols that will be of use- DEGREESnot only to those with some experience of ribozymes- DEGREESbut also to those wishing to use ribozymes for the first time. Although it is usually impossible to cover every aspect of a scientific field, I believe this book approaches that ideal and should help all readers perform meaningful experiments using ribozymes. To design ribozymes, one must consider whether the target site will be accessible; this task can be facilitated by using computer programs that pre dict the folding of the target RNA. Such programs are detailed in Chapters 2 and 3. If the chosen target is an RNA virus that can mutate rapidly, it makes sense to consider those parts of the genome that are least likely to change during viral replication. An example of how this can be done is described in Chapter 4. Although computer analysis may be a useful starting point to select tar get sites, there seems, at the moment, to be no guarantee that any particular chosen site will be efficiently cleaved. Some workers have deliberately bypassed this problem by using libraries of ribozyme sequences and by select ing those that actually hybridize to and/or cleave the target; these methods are described in Chapters 5

This book is focused on the current status of industrial pollution, its source, characteristics, and management through various advanced treatment technologies. The book covers the recycle, reuse and recovery of waste for the production of value-added products. The book explores industrial wastewater pollution and its treatment through various advanced technologies and also the source and characteristics of solid waste and its management for environmental safety. It discusses new methods and technologies to combat the waste-related pollution and focuses on the use of recycled products. This book is of value to upcoming students, researchers, scientists, industry persons and professionals in the field of environmental science and engineering, microbiology, biotechnology, toxicology, further it is useful for global and local authorities and policy makers responsible for the management of liquid and solid wastes.

Determination of the protein sequence is as important today as it was a half century ago, even though the techniques and purposes have changed over time. Mass spectrometry has continued its recent rapid development to find notable application in the characterization of small amounts of protein, for example, in the field of proteomics. The "traditional" chemical N-terminal sequencing is still of great value in quality assurance of the increasing number of biopharmaceuticals that are to be found in the clinic, checking processing events of recombinant proteins, and so on. It is joined in the armory of me- ods of protein analysis by such techniques as C-terminal sequencing and amino acid analysis. These methods are continually developing. The first edition of Protein Sequencing Protocols was a "snapshot" of methods in use in protein biochemistry laboratories at the time, and this, the second edition, is likewise. Methods have evolved in the intervening period, and the content of this book has similarly changed, the content of some chapters having been superceded and replaced by other approaches. Thus, in this edition, there is inclusion of approaches to validation of methods for quality assurance work, reflecting the current importance of biopharmaceuticals, and also a guide to further analysis of protein sequence information, acknowledging the importance of bioinformatics.

Photobiology integrates a wide variety of scientific disciplines. As more people become aware of the many ways light interacts with chemical and biological systems, the need for a concise treatment of photobiology has become more critical. Kohen "et al." Have written just such a book, intended both as a textbook and as a reference.
The authors begin by providing a brief description of the nature of light, how it affects matter, and the means and methods of measuring it. A major section of the book is devoted to how light influences living systems, including discussions of photosynthesis, bioluminescence, regulatory mechanisms, and visual transduction of light. The last half of the book is devoted to the biomedical aspects of light, including photoimmunology, photoallergic reactions and other forms of light sensitivity, the optical properties of skin, and various ways that light can be used in therapy treatments.
Useful to photobiologists as a comprehensive overview, this book should also appeal to biomedical researchers and advanced students of photobiology.