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Books > Science & Mathematics > Science: general issues > Scientific equipment & techniques, laboratory equipment

Developmental Biology Protocols - Volume III (Hardcover, 2000 ed.): Rocky S. Tuan, Cecilia W Lo Developmental Biology Protocols - Volume III (Hardcover, 2000 ed.)
Rocky S. Tuan, Cecilia W Lo
R5,756 Discovery Miles 57 560 Ships in 10 - 15 working days

Drawing on state-of-the-art cellular and molecular techniques as well as new and sophisticated imaging and information technologies, this comprehensive, three-volume collection of cutting-edge protocols provides readily reproducible methods for studying and analyzing the events of embryonic development. Volume 1 (ISBN: 089603-574-3) contains techniques for establishing and characterizing several widely used experimental model systems, for the study of developmental patterns and morphogenesis, and for the examination of embryo structure and function. There are also step-by-step methods for the analaysis of cell lineage, the production and use of chimeras, and the experimental and molecular manipulation of embryos, including the application of viral vectors. Volume 2 (ISBN: 0-89603-575-1) describes state-of-the-art methods for the study of organogenesis, the analysis of abnormal development and teratology, the screening and mapping of novel genes and mutations, and the application of transgenesis, including the production of transgenic animals and gene knockouts. No less innovative, Volume 3 (ISBN: 0-89603-576-X) introduces powerful techniques for the manipulation of developmental gene expression and function, the analysis of gene expression, the characterization of tissue morphogenesis and development, the in vitro study of differentiation and development, and the genetic analysis of developmental models of diseases. Highly practical and richly annotated, the three volumes of Developmental Biology Protocols describe multiple experimental systems and details techniques adopted from the broadest array of biomedical disciplines.

Mono-Cycle Photonics and Optical Scanning Tunneling Microscopy - Route to Femtosecond Angstrom Technology (Hardcover, 2005... Mono-Cycle Photonics and Optical Scanning Tunneling Microscopy - Route to Femtosecond Angstrom Technology (Hardcover, 2005 ed.)
Mikio Yamashita, Hidemi Shigekawa, Ryuji Morita
R4,587 Discovery Miles 45 870 Ships in 10 - 15 working days

Deals with both the ultrashort laser-pulse technology in the few- to mono-cycle region and the laser-surface-controlled scanning-tunneling microscopy (STM) extending into the spatiotemporal extreme technology. The former covers the theory of nonlinear pulse propagation beyond the slowly-varing-envelope approximation, the generation and active chirp compensation of ultrabroadband optical pulses, the amplitude and phase characterization of few- to mono-cycle pulses, and the feedback field control for the mono-cycle-like pulse generation. In addition, the wavelength-multiplex shaping of ultrabroadband pulses, and the carrier-phase measurement and control of few-cycle pulses are described. The latter covers the CW-laser-excitation STM, the femtosecond-time-resolved STM and atomic-level surface phenomena controlled by femtosecond pulses.

Sequence Data Analysis Guidebook (Hardcover, 1997 ed.): Simon R. Swindell Sequence Data Analysis Guidebook (Hardcover, 1997 ed.)
Simon R. Swindell
R4,397 Discovery Miles 43 970 Ships in 10 - 15 working days

Computers have revolutionized the analysis of sequencing data. It is unlikely that any sequencing projects have been performed in the last few years without the aid of computers. Recently their role has taken a further major step forward. Computers have become smaller and more powerful and the software has become simpler to use as it has grown in sophistication. This book reflects that change since the majority of packages described here are designed to be used on desktop computers. Computer software is now available that can run gels, collect data, and assess its accuracy. It can assemble, align, or compare multiple fragments, perform restriction analyses, identify coding regions and specific motifs, and even design the primers needed to extend the sequencing. Much of this soft ware may now be used on relatively inexpensive computers. It is now possible to progress from isolate d DNA to database submission without writing a single base down. To reflect this progression, the chapters in our Sequence Data Analysis Guidebook are arranged, not by software package, but by fimction. The early chapters deal with examining the data produced by modem automated sequenc ers, assessing its quality, and removing extraneous data. The following chap ters describe the process of aligning multiple sequences in order to assemble overlapping fragments into sequence contigs to compare similar sequences from different sources. Subsequent chapters describe procedures for compar ing the newly derived sequence to the massive amounts of information in the sequence databases."

International Primary Science Workbook: Stage 4 (Paperback, 2nd Revised edition): International Primary Science Workbook: Stage 4 (Paperback, 2nd Revised edition)
R137 Discovery Miles 1 370 Ships in 5 - 10 working days

Spark scientific curiosity from a young age with this six-level course through an enquiry-based approach and active learning. Collins International Primary Science fully meets the requirements of the Cambridge Primary Science Curriculum Framework from 2020 and has been carefully developed for a range of international contexts. The course is organised into four main strands: Biology, Chemistry, Physics and Earth and Space and the skills detailed under the ‘Thinking and Working Scientifically’ strand are introduced and taught in the context of those areas. For each Workbook at Stages 1 to 6, we offer: A write-in Workbook linked to the Student’s Book New language development activities help build science vocabulary Earth and Space content covers the new curriculum framework Thinking and Working Scientifically deepens and enhances the delivery of Science skills Actively learn through practical activities that don’t require specialist equipment or labs Scaffolding allows students of varying abilities to work with common content and meet learning objectives Supports Cambridge Global Perspectives™ with activities that develop and practise key skills Provides learner support as part of a set of resources for the Cambridge Primary Science curriculum framework (0097) from 2020 This series is endorsed by Cambridge Assessment International Education to support the new curriculum framework 0097 from 2020.

Methods in Computational Chemistry (Hardcover, 1992 ed.): Stephen Wilson Methods in Computational Chemistry (Hardcover, 1992 ed.)
Stephen Wilson
R4,562 Discovery Miles 45 620 Ships in 10 - 15 working days

Providing specialist reviews and analyses of contemporary theories, algorithms, and techniques, this series aims to facilitate the effective exploitation of available computing power. The current volume focuses on the theoretical determination of atomic and molecular properties as related to wave functions, electron densities, and total energies.

Developmental Biology Protocols - Volume II (Hardcover, 2000 ed.): Rocky S. Tuan, Cecilia W Lo Developmental Biology Protocols - Volume II (Hardcover, 2000 ed.)
Rocky S. Tuan, Cecilia W Lo
R4,762 Discovery Miles 47 620 Ships in 12 - 19 working days

Drawing on state-of-the-art cellular and molecular techniques as well as new and sophisticated imaging and information technologies, this comprehensive, three-volume collection of cutting-edge protocols provides readily reproducible methods for studying and analyzing the events of embryonic development. Volume 1 (ISBN: 089603-574-3) contains techniques for establishing and characterizing several widely used experimental model systems, for the study of developmental patterns and morphogenesis, and for the examination of embryo structure and function. There are also step-by-step methods for the analaysis of cell lineage, the production and use of chimeras, and the experimental and molecular manipulation of embryos, including the application of viral vectors. Volume 2 (ISBN: 0-89603-575-1) describes state-of-the-art methods for the study of organogenesis, the analysis of abnormal development and teratology, the screening and mapping of novel genes and mutations, and the application of transgenesis, including the production of transgenic animals and gene knockouts. No less innovative, volume 3 (ISBN: 0-89603-576-X) introduces powerful techniques for the manipulation of developmental gene expression and function, the analysis of gene expression, the characterization of tissue morphogenesis and development, the in vitro study of differentiation and development, and the genetic analysis of developmental models of diseases. Highly practical and richly annotated, the three volumes of Developmental Biology Protocols describe multiple experimental systems and details techniques adopted from the broadest array of biomedical disciplines.

Atherosclerosis - Experimental Methods and Protocols (Hardcover, 2001 ed.): Angela F. Drew Atherosclerosis - Experimental Methods and Protocols (Hardcover, 2001 ed.)
Angela F. Drew
R3,026 Discovery Miles 30 260 Ships in 10 - 15 working days

Atherosclerosis: Experimental Methods and Protocols aims to provide the reader with a compilation of techniques that will prove useful to active investigators across the field of experimental atherosclerosis research. In fact, this volume is unique, the first devoted to a broad spectrum of techniques and assays, some adopted from other disciplines, not previously brought together in one book. Our approach is designed to permit researchers to select the techniques that will answer their particular sets of questions, in any of the expanding number of both animal models and in vitro systems now available for studying factors contributing to the development or progression of athe- sclerotic lesions. Researchers can only benefit from this collection of relevant techniques, written and explained by experts in each of these fields. Both investigators beginning in the field of atherosclerosis studies and researchers entering the field from related but different areas of study will benefit from Atherosclerosis: Experimental Methods and Protocols. Sufficient background is provided for a beginner to carry out the techniques described in the chapters, yet great depth is achieved owing to the special expertise of the authors. Researchers new to the field of atherosclerosis will appreciate the benefits of having these techniques gathered in one volume for their inves- gations. In addition, researchers already in the field of atherosclerosis research may benefit from the wide array of techniques and ideas provided by enjoying expanded opportunities to investigate their hypotheses.

Neutron Radiography Handbook - Nuclear Science and Technology (Hardcover, 1981 ed.): Peter Von Der Hardt, Heinz Roettger Neutron Radiography Handbook - Nuclear Science and Technology (Hardcover, 1981 ed.)
Peter Von Der Hardt, Heinz Roettger
R2,975 Discovery Miles 29 750 Ships in 10 - 15 working days

Radiography with neutrons can yield important information not obtainable by more traditional methods. In contrast to X-rays as the major tool of visual non-destructive testing, neutrons can be attenuated by light materials like water, hydrocarbons, boron, penetrate through heavy materials like steel, lead, uranium, distinguish between different isotopes of certain elements, supply high quality radiographs of highly radioactive components. These advantages have led to multiple applications of neutron radiography since 1955, both for non-nuclear and nuclear problems of quality assurance. The required neutron beams originate from radioisotopic sources, accelerator targets, or research reactors. Energy "tailoring" which strongly influences the interaction with certain materials adds to the versatility of the method. Since about 1970 norms and standards have been introduced and reviewed both in Europe (Birmingham, September 1973) and the United States (Gaithersburg, February 1975). The first world conference on neutron radiography will take place in December 1981, in San Diego, U.S.A. . In Europe the interested laboratories inside the European Community have entered into systematic collaboration through the Neutron Radiography Working Group (NRWGl. since May 1979. This Handbook has been compiled as one of the common tasks undertaken by the Group. Its principal authors are J.C. Domanus (Ris0 National Laboratory). and R.S. Matfield (Joint Research Centre, Ispra) Major contributions have been received from R. Liesenborgs (SCK/CEN Mol) R. Barbalat (CEN Saclayl.

Somatic Embryogenesis in Woody Plants - Volume 5 (Hardcover, 1999 ed.): S. M. Jain, Pramod P.K. Gupta, R.J. Newton Somatic Embryogenesis in Woody Plants - Volume 5 (Hardcover, 1999 ed.)
S. M. Jain, Pramod P.K. Gupta, R.J. Newton
R5,779 Discovery Miles 57 790 Ships in 10 - 15 working days

The quality of human life has been maintained and enhanced for generations by the use of trees and their products. In recent years, ever rising human population growth has put a tremendous pressure on trees and tree products; growing awareness of the potential of previously unexploited tree resources; and environmental pollution have both accelerated the development of new technologies for tree propagation, breeding and improvement. Biotechnology of trees may be the answer to solve the problems which can not be solved by conventional breeding methods. The combination of biotechnology and conventional methods such as plant propagation and breeding could become a novel approach to improving and multiplying a large number of the trees and woody plants. So far, plant tissue culture technology has largely been exploited by commercial companies in propagation of ornamentals, especially foliage house plants. Generally, tissue culture of woody plants has been recalcitrant. However, limited success has been achieved in tissue culture of angiosperm and gymnosperm woody plants. A number of recent reports on somatic embryogenesis in woody plants such as Norway spruce (Picea abies), Loblolly pine (Pinus taeda), Sandalwood (Santalum album), Citrus and mango (Mangifera indica), offer a ray of hope for inexpensive clonal propagation for large-scale production of plants or 'emblings' or somatic seedlings; protoplast work; cryopreservation; genetic transformation; and synthetic or artificial or manufactured seed production.

MHC Protocols (Hardcover, 2003 ed.): Stephen H. Powis, Robert W Vaughan MHC Protocols (Hardcover, 2003 ed.)
Stephen H. Powis, Robert W Vaughan
R4,560 Discovery Miles 45 600 Ships in 10 - 15 working days

The aim of MHC Protocols is to document protocols that can be used for the analysis of genetic variation within the human major histocompatibility complex (MHC; HLA region). The human MHC encompasses approximately 4 million base pairs on the short arm of chromosome 6 at cytogenetic location 6p21. 3. The region is divided into three subregions. The telomeric class I region contains the genes that encode the HLA class I molecules HLA-A, -B, and -C. The centromeric class II region contains the genes encoding the HLA class II molecules HLA-DR, -DQ, and -DP. In between is the class III region, originally identified because it contains genes encoding components of the complement pathway. The entire human MHC has recently been sequenced (1) and each subregion is now known to contain many other genes, a number of which have immunological functions. The study of polymorphism within the MHC is well established, because the region contains the highly polymorphic HLA genes. HLA polymorphism has been used extensively in solid organ and bone marrow transplantation to match donors and recipients. As a result, large numbers of HLA alleles have been identified, a process that has been further driven by recent interest in HLA gene diversity in ethnic populations. The extreme genetic variation in HLA genes is believed to have been driven by the evolutionary response to infectious agents, but relatively few studies have analyzed associations between HLA genetic variation and infectious disease, which has been difficult to demonstrate.

Applied Scanning Probe Methods II - Scanning Probe Microscopy Techniques (Hardcover): Bharat Bhushan, Harald Fuchs Applied Scanning Probe Methods II - Scanning Probe Microscopy Techniques (Hardcover)
Bharat Bhushan, Harald Fuchs
R4,429 Discovery Miles 44 290 Ships in 10 - 15 working days

The Nobel Prize of 1986 on Sc- ningTunnelingMicroscopysignaled a new era in imaging. The sc- ning probes emerged as a new - strument for imaging with a p- cision suf?cient to delineate single atoms. At ?rst there were two - the Scanning Tunneling Microscope, or STM, and the Atomic Force Mic- scope, or AFM. The STM relies on electrons tunneling between tip and sample whereas the AFM depends on the force acting on the tip when it was placed near the sample. These were quickly followed by the M- netic Force Microscope, MFM, and the Electrostatic Force Microscope, EFM. The MFM will image a single magnetic bit with features as small as 10nm. With the EFM one can monitor the charge of a single electron. Prof. Paul Hansma at Santa Barbara opened the door even wider when he was able to image biological objects in aqueous environments. At this point the sluice gates were opened and a multitude of different instruments appeared. There are signi?cant differences between the Scanning Probe Microscopes or SPM, and others such as the Scanning Electron Microscope or SEM. The probe microscopes do not require preparation of the sample and they operate in ambient atmosphere, whereas, the SEM must operate in a vacuum environment and the sample must be cross-sectioned to expose the proper surface. However, the SEM can record 3D image and movies, features that are not available with the scanning probes.

Developmental Biology Protocols - Volume I (Hardcover, 2000 ed.): Rocky S. Tuan, Cecilia W Lo Developmental Biology Protocols - Volume I (Hardcover, 2000 ed.)
Rocky S. Tuan, Cecilia W Lo
R6,084 Discovery Miles 60 840 Ships in 10 - 15 working days

Drawing on state-of-the-art cellular and molecular techniques as well as new and sophisticated imaging and information technologies, this comprehensive, three-volume collection of cutting-edge protocols provides readily reproducible methods for studying and analyzing the events of embryonic development. Volume 1 (ISBN: 089603-574-3) contains techniques for establishing and characterizing several widely used experimental model systems, for the study of developmental patterns and morphogenesis, and for the examination of embryo structure and function. There are also step-by-step methods for the analaysis of cell lineage, the production and use of chimeras, and the experimental and molecular manipulation of embryos, including the application of viral vectors. Volume 2 (ISBN: 0-89603-575-1) describes state-of-the-art methods for the study of organogenesis, the analysis of abnormal development and teratology, the screening and mapping of novel genes and mutations, and the application of transgenesis, including the production of transgenic animals and gene knockouts. No less innovative, Volume 3 (ISBN: 0-89603-576-X) introduces powerful techniques for the manipulation of developmental gene expression and function, the analysis of gene expression, the characterization of tissue morphogenesis and development, the in vitro study of differentiation and development, and the genetic analysis of developmental models of diseases. Highly practical and richly annotated, the three volumes of Developmental Biology Protocols describe multiple experimental systems and details techniques adopted from the broadest array of biomedical disciplines.

Electron Microdiffraction (Hardcover, 1992 ed.): J.M. Zuo, J. C. H. Spence Electron Microdiffraction (Hardcover, 1992 ed.)
J.M. Zuo, J. C. H. Spence
R5,801 Discovery Miles 58 010 Ships in 10 - 15 working days

Much of this book was written during a sabbatical visit by J. C. H. S. to the Max Planck Institute in Stuttgart during 1991. We are therefore grateful to Professors M. Ruhle and A. Seeger for acting as hosts during this time, and to the Alexander von Humbolt Foundation for the Senior Scientist Award which made this visit possible. The Ph. D. work of one of us (J. M. Z. ) has also provided much of the background for the book, together with our recent papers with various collaborators. Of these, perhaps the most important stimulus to our work on convergent-beam electron diffraction resulted from a visit to the National Science Foundation's Electron Microscopy Facility at Arizona State University by Professor R. H(lJier in 1988, and from a return visit to Trondheim by J. C. H. S. in 1990. We are therefore particularly grateful to Professor H(lJier and his students and co-workers for their encouragement and collaboration. At ASU, we owe a particular debt of gratitude to Professor M. O'Keeffe for his encouragement. The depth of his under standing of crystal structures and his role as passionate skeptic have frequently been invaluable. Professor John Cowley has also been an invaluable sounding board for ideas, and was responsible for much of the experimental and theoretical work on coherent nanodiffraction. The sections on this topic derive mainly from collaborations by J. C. H. S. with him in the seventies."

Soft Computing Approaches in Chemistry (Hardcover, 2003 ed.): Hugh M. Cartwright, Les M. Sztandera Soft Computing Approaches in Chemistry (Hardcover, 2003 ed.)
Hugh M. Cartwright, Les M. Sztandera
R4,546 Discovery Miles 45 460 Ships in 10 - 15 working days

This book brings together original work from a number of authors who have made significant contributions to the evolution and use of nonstandard computing methods in chemistry and pharmaceutical industry. The contributions to this book cover a wide range of applications of Soft Computing to the chemical domain. Soft Computing applications are able to approximate many different kinds of real-world systems; to tolerate imprecision, partial truth, and uncertainty; and to learn from their environment and generate solutions of low cost, high robustness, and tractability. Presented applications are the optimization of the structure of atom clusters, the design of safe textile materials, real-time monitoring of pollutants in the workplace, quantitative structure-activity relationships, the analysis of Mössbauer spectra, the synthesis of methanol or the use of bioinformatics in the clustering of data within large biochemical databases. With this diverse range of applications, the book appeals to professionals, researchers and developers of software tools for the design of Soft Computing-based systems in chemistry and pharmaceutical industry, and to many others within the computational intelligence community.

International Primary Science Student's Book: Stage 4 (Paperback, 2nd Revised edition): International Primary Science Student's Book: Stage 4 (Paperback, 2nd Revised edition)
R227 Discovery Miles 2 270 Ships in 5 - 10 working days

Spark scientific curiosity from a young age with this six-level course through an enquiry-based approach and active learning. Collins International Primary Science fully meets the requirements of the Cambridge Primary Science Curriculum Framework from 2020 and has been carefully developed for a range of international contexts. The course is organised into four main strands: Biology, Chemistry, Physics and Earth and Space and the skills detailed under the 'Thinking and Working Scientifically' strand are introduced and taught in the context of those areas. For each Student's Book at Stages 1 to 6, we offer: A full colour and highly illustrated Student's Book Photo-rich spreads show that science is 'real' and puts it into context Earth and Space content covers the new curriculum framework Thinking and Working Scientifically deepens and enhances the delivery of Science skills Actively learn through practical activities that don't require specialist equipment or labs Scaffolding allows students of varying abilities to work with common content and meet learning objectives Supports Cambridge Global Perspectives (TM) with activities that develop and practise key skills Provides learner support as part of a set of resources for the Cambridge Primary Science curriculum framework (0097) from 2020 This series is endorsed by Cambridge Assessment International Education to support the new curriculum framework 0097 from 2020.

Annual Reports in Computational Chemistry, Volume 2 (Hardcover, 2nd edition): David C. Spellmeyer Annual Reports in Computational Chemistry, Volume 2 (Hardcover, 2nd edition)
David C. Spellmeyer
R6,006 Discovery Miles 60 060 Ships in 12 - 19 working days

Annual Reports in Computational Chemistry is a new periodical providing timely and critical reviews of important topics in computational chemistry as applied to all chemical disciplines. Topics covered include quantum chemistry, molecular mechanics, force fields, chemical education, and applications in academic and industrial settings. Each volume is organized into (thematic) sections with contributions written by experts. Focusing on the most recent literature and advances in the field, each article covers a specific topic of importance to computational chemists. Annual Reports in Computational Chemistry is a 'must' for researchers and students wishing to stay up-to-date on current developments in computational chemistry.
* Broad coverage of computational chemistry and up-to-date information
* The topics covered include quantum chemistry, molecular mechanics, force fields, chemical education, and applications in academic and industrial settings
* Each chapter reviews the most recent literature on a specific topic of interest to computational chemists

Spectroscopy of Biological Molecules: New Directions - 8th European Conference on the Spectroscopy of Biological Molecules, 29... Spectroscopy of Biological Molecules: New Directions - 8th European Conference on the Spectroscopy of Biological Molecules, 29 August-2 September 1999, Enschede, The Netherlands (Hardcover, 1999 ed.)
Jan Greve, Gerwin Jan Puppels, Cees Otto
R8,865 Discovery Miles 88 650 Ships in 12 - 19 working days

Investigation of the structure and function of biological molecules through spectroscopic methods is a field rich in revealing, clever techniques and demanding experiments. It is most gratifying to see that the basic concepts are applied to more and more complex systems, making feasible the study of the behaviour of whole systems in relation to molecular disturbances. The analytical potential of spectroscopy and spectroscopic imaging enables species identification of bacteria and tissue recognition. Clear opportunities for in vivo applications become apparent in the medical field. The methods developed in biophysics start to generate spin-off in the direction of biotechnology, where in previous years we have seen this happen for biochemical techniques. New directions are manifest. Tools are being developed to investigate the behaviour of single molecules in interaction with their environment. Individual interactions can now be investigated and individual molecules in complexes can be visualized. Processes that were previously unobservable as a result of ensemble averaging can now be investigated on a single molecule level. Completely new information with regard to molecular behaviour is obtained in this way. The insights amaze us and the prospect that this development will continue is exciting. The 8th European Conference on the Spectroscopy of Biological Molecules is proud to have contributed to the dissemination of these new directions. This proceedings book is an appropriate reflection of the progress obtained so far in the spectroscopy of biological molecules.

Insect Microscopy (Paperback): Andrew Chick Insect Microscopy (Paperback)
Andrew Chick
R509 Discovery Miles 5 090 Ships in 12 - 19 working days

Insects, and their close relatives, the arachnids, centipedes, millipedes and woodlice, make ideal material for study by the recreational microscopist. Moreover for the entomologist, the addition of the use of the microscope to their tool kit adds a whole new dimension to their study, revealing in finest detail the appearance and structure of these tiny creatures. This book reveals the basics of insect microscopy, explaining what equipment is needed and how to get the best out of it. Topics covered include insects and their relatives; trapping insects for study; dissection, slide mounting publishing your work.

Antigen Processing and Presentation Protocols (Hardcover, New edition): Joyce C. Solheim Antigen Processing and Presentation Protocols (Hardcover, New edition)
Joyce C. Solheim
R3,050 Discovery Miles 30 500 Ships in 10 - 15 working days

Antigen processing and presentation, as a field, explores a broad range of protein interactions and functions, both intracellular (in the cytoplasm and in the endoplasmic reticulum) and at the cell surface (between T cells and MHC molecules). To investigate such a diverse array, it is necessary that biochemical, cell biology, and immunological techniques all be employed. The purpose of Antigen Processing and Presentation Protocols is therefore to detail the most up-to-date techniques being used in this burgeoning field. Such techniques include those used to question how MHC-binding peptides are generated, to test how peptides are delivered to MHC molecules, to analyze MHC peptide-binding patterns, and to assay the T-cell response to MHC/peptide. Antigen Processing and Presentation Protocols should aid both those new and those experienced in this area of research in extending the questions that can be asked and answered by the application of these current methods. For editorial assistance, I would like to thank Angela Beninga and Rachael Turnquist.

Lipase and Phospholipase Protocols (Hardcover, 1999 ed.): Mark Doolittle Lipase and Phospholipase Protocols (Hardcover, 1999 ed.)
Mark Doolittle
R2,929 Discovery Miles 29 290 Ships in 10 - 15 working days

The lipases and phospholipases represent a diverse group of enzymes that are expressed in animals, plants, fungi, and bacteria. Their ubiquitous distribution among all species is a testament to the essential roles played by these enzymes in lipid storage, mobilization and metabolism, membrane homeostasis and remodeling, endocrine and immune functions, and signal tra- duction. In humans, lipases and phospholipases are also thought to contribute to complex diseases, such as atherosclerosis, obesity, arthritis, and cancer, as well as to single gene defects, such as Wolman's disease and Type I hyperlipoproteinemia. Enzymatically, the lipases are unique, since they hydrolyze substrates that are either insoluble, or only partly soluble, in aq- ous solvents; thus, enzyme catalysis takes place at a lipid-water interface. The interface comprises at least two, and often more, discrete bulk and s- face phases, in which the enzyme, substrate, and products oflipolysis disperse among these phases based on their physical properties. Furthermore, the d- tribution of these components changes continuously as lipolysis proceeds. Thus, the lipases and phospholipases are fundamentally different from any other enzyme because of the physical complexity of the environment in which catalysis occurs.

Practical Stereology (Hardcover, 1986 ed.): John C. Russ Practical Stereology (Hardcover, 1986 ed.)
John C. Russ
R4,456 Discovery Miles 44 560 Ships in 10 - 15 working days

vi on geometric probability is included, students can be expected to create a few simple programs like those shown, but for other geometries. I am indebted to Tom Hare for critical reviews of the material and an endless enthusiasm to debate and derive stereological relationships; to John Matzka at Plenum Press for patiently instructing me in the intricacies of typesetting; to Chris Russ for helping to program many of these measurement techniques; and especially to Helen Adams, both for her patience with my creative fever to write yet another book, and for pointing out that the title, which I had intended to contrast to "theoretical stereology," can also be understood as the antonym of "impractical stereology." John C. Russ Raleigh, NC July, 1986 Chapter 1: Statistics 1 Accuracy and precision 1 The mean and standard deviation 5 Distributions 7 Comparison 13 Correlation 18 Nonlinear fitting 19 Chapter 2: Image Types 23 Planar sections 23 Projected images 25 Finite sections 28 Space-filling structures and dispersed phases 29 Types of images and contrast mechanisms 31 Sampling 32 Chapter 3: Manual Methods 35 Volume fraction 35 Surface density 38 Contiguity 41 Mean intercept length 42 Line density 43 Grain size determination 55 Curvature 48 Reticles to aid counting 49 Magnification and units 51 Chapter4: Size Distributions 53 Intercept length in spheres 53 Nonspherical shapes 57 Corrections for finite section thickness 59 Lamellae 61 Measurement of profile size 62 Nonspherical particles 69 vii Contents viii Chapter 5: Computer Metlwds 73

Structural Electron Crystallography (Hardcover, 1995 ed.): D. L. Dorset Structural Electron Crystallography (Hardcover, 1995 ed.)
D. L. Dorset
R4,621 Discovery Miles 46 210 Ships in 10 - 15 working days

Arbeitshypothesen sind revidierbar, deklarierten Wahrheiten nicht, sie verkalken zum System; Arbeitshypothesen passen sich den Menschen an, den deklarierten Wahrheiten wird der Mensch angepajJt; die ersten kann mann verwerfen, von den anderen wird man verworfen. FRIEDRICH DORRBNMATI, Nachgedanken Working hypotheses can be revised, ' declared truths cannot-they calcify into dogma. Working hypotheses adapt to people-people adapt to declared truths. One can reject the first but be rejected by the latter. The concept of electron crystallography, i.e., the quantitative use of electron diffraction intensities to solve crystal structures, is by no means new. Based on extensive pioneering efforts on organic and inorganic substances, two major works on electron diffraction structure analysis (or "electronography" as it was then known in Moscow) appeared in English translation during the 19608. These books are B. K. Vainshtein, Strukturnaya Elektronografiya (Structure Analysis by Electron Diffrac tion, translated by E. Feigl andJ. A. Spink, Pergamon Press, Oxford, 1964), and B. B."

Drops of Water - Their Marvelous and Beautiful Inhabitants Displayed by the Microscope (Hardcover): Agnes 1807?-1889 Catlow Drops of Water - Their Marvelous and Beautiful Inhabitants Displayed by the Microscope (Hardcover)
Agnes 1807?-1889 Catlow
R899 Discovery Miles 8 990 Ships in 12 - 19 working days
High Pressure Chemistry and Biochemistry (Hardcover, 1987 ed.): R.Van Eldik, Jiri Jonas High Pressure Chemistry and Biochemistry (Hardcover, 1987 ed.)
R.Van Eldik, Jiri Jonas
R8,803 Discovery Miles 88 030 Ships in 12 - 19 working days

It was the objective of the ASI on "Advances in High Pressure Studies of Chemical and Biochemical Systems" to present the current status of such studies and to emphasize the advances achieved during the nine years since the previous ASI on "High Pressure Chemistry." These advances are partly due to the improved instrumentation enabling static and dynamic measurements at pressures several orders of magnitude higher than before, and partly due to the more general availability of high pressure equipment. This has led to a remarkable development in various areas of physics and chemistry, and especially in biochemistry. Throughout the presentation of this Advanced Study Institute the emphasis fell on the teaching character of such a summer school, and the contributions in this volume are of such a nature. Following a general introduction to modern high pressure research, a series of chapters on theoretical and experimental studies of gases, fluids and solids at high temperatures and pressures are presented with special emphasis on the physical aspects involved. Instrumentation used in such studies, viz. shock compression, NMR spectroscopy, laser scattering, x-ray and neutron scattering, and vibrational spectroscopy are treated in detail. The subsequent chapters are devoted to the application of high pressure techniques in the broad areas of organic, inorganic and biochemistry_ The formal lectures were supplemented by 29 contributed papers, for which a list of titles is included.

A Manual of Applied Techniques for Biological Electron Microscopy (Hardcover, 1993 ed.): Michael J. Dykstra A Manual of Applied Techniques for Biological Electron Microscopy (Hardcover, 1993 ed.)
Michael J. Dykstra
R3,026 Discovery Miles 30 260 Ships in 10 - 15 working days

This easy-to-follow manual describes tested procedures used to prepare biological samples for scanning and transmission electron microscopy, as well as methods for cytochemistry, immunocytochemistry, and scientific photography. The work is structured to clearly define testing objectives, necessary materials, procedural steps, and expected results; a list of references and trouble shooting techniques round out the text.

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