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Books > Science & Mathematics > Science: general issues > Scientific equipment & techniques, laboratory equipment
It is now more than 20 years since the book "Radical Ions" edited by Kaiser and Kevan appeared. It contained aspects regarding generation, identification, spin density determination and reactivity of charged molecules with an odd number of electrons. New classes of reactive ion radicals have been detected and characterised since then, most notably cation radicals of saturated organic compounds. Trapping of electrons has been found to occur not only in frozen glasses but also in organic crystals. The structure and reactions of anion radicals of saturated compounds have been clarified during the last 20 years. We have asked leading experts in the field to write separate chapters about cation radicals, anion radicals and trapped electrons as well as more complex systems of biological or technological interest. More attention is paid to recent studies of the ions of saturated compounds than to the older and previously reviewed work on aromatic ions. In the case of trapped electrons full coverage is out of the question, and focus is on recent efforts to characterise the solvation structure in ordered and disordered systems.
The papers included in this volume were presented at the symposium on "Americium and Curium Chemistry and Technology" at the International Chemical Congress of Pacific Basin Societies in Honolulu, Hawaii, December 16-21, 1984. This symposium commemorated forty years of research on americium and curium. Accordingly, the papers included in this volume begin with historical perspectives on the discovery of americium and curium and the early characterization of their chemical properties, and then cover a wide range of subjects, such as thermodynamic properties, electronic structure, nuclear reactions, analytic chemistry, high pressure phase transitions, and technological aspects. Thus, this volume is a review of the chemistry of americium and curium, and provides a perspective on the current research on these elements forty years after their discovery. The editors would like to thank the participants in this symposium for their contributions. It is a pleasure to acknowledge the assistance of Ms. Barbara Moriguchi in handling the administrative aspects of the symposium and of the production of this volume. April 2, 1985 Norman M. Edelstein Materials and Molecular Research Division Lawrence Berkeley Laboratory University of California Berkeley, California 94720, U.S.A. James D. Navratil Rockwell International Rocky Flats Plant P.O. Box 464 Golden, Colorado 80402-0464, U.S.A. Wallace W. Schulz Rockwell Hanford P.O. Box 800 Richland, Washington 99352, U.S.A.
It is now widely accepted that the extracellular matrix (ECM) is a key determinant of tissue-specific gene expression. Signals provided by ECM are transduced by integrins, a large and growing superfamily of transmembrane heterodimeric cell surface receptors that link the ECM to structural and fu- tional elements within the cell. A wide range of cellular phenotypes have been shown to be regulated by integrins, including growth, differentiation, mig- tion, invasion, angiogenesis, and apoptosis. Furthermore, abnormalities of integrin expression and function have been implicated in the etiology of va- ous pathologic conditions, including cardiovascular disease, inflammatory disorders, and cancer. Thus integrins have emerged as an important class of molecules with wide ranging implications for understanding basic biological processes. In Integrin Protocols we provide a wide-ranging collection of laboratory protocols intended to assist investigators interested in integrins in working productively with these molecules, in studying their expression, and in pot- tially manipulating that expression to define their role(s) in relevant biolo- cal models. Protocols are provided for the analysis of integrin expression both at the RNA and protein levels (Chaps. 2, 5, and 7). Delcommenne and Streuli describe procedures for making rat monoclonal antibodies specific for mouse integrins; Schneller et al. and Arap and Huang describe methods for western blotting of integrins and RT-PCR analysis. Protocols are included that cover the analysis of the functional properties of integrins (Chaps. 1, 3, 4, 8, and 9 through 11). Koivunen et al.
The idea of this NATO school was born during philosophical discussions with Dr Brevard on the present and future of NMR during a night walk under the palm trees in Biskra during a seminar held in this oasis. It was clear for us that the recent progress in the field of NMR, especially inverse spectroscopy and the development of MAS, was opening new perspectives for chemists. We realised also that organometallic and inorganic chemists were not clearly informed about the potentialities of all the new methods. NA TO, with its summer schools, was offering a good opportunity to propose to the chemical community a session where those problems would be largely developped. This School is then the prolongation of the two previous ones: Palermo in 1976 on "the less receptive nuclei" and Stirling in 1982 on "the multinuclear approach to NMR spectroscopy" . It was divided into two sub-sessions: NMR in the liquid state and NMR in the solid state. This is reflected in the book organization. As indicated by the title of this School, we were mainly concerned with the methodological aspects of multinuclear NMR. If many examples are given, they appear only as a support for the understanding of the theory or in explanation of some practical aspects of the different experiments. Each domain is introduced by a lecture which presents selected examples.
An Introduction to Digital Photomicrography is written for the hobbyist and the neophyte who wants to take pictures through the microscope. The book includes a description of the parts of the microscope; how to use adjust lighting; types of digital cameras; controls for adjusting digital cameras; choosing a video camera and controls for videography.
By the end of the 1980s only two microtubule-dependent motors, the plus end-directed kinesin and the minus end-directed cytoplasmic dynein, had been identified. At the time, these two motors seemed almost sufficient to explain directional motility events on polar microtubule tracks in the cell. No- theless, shortly after, the tip of the iceberg began to emerge with the identi- cation of proteins containing in their sequences a domain found in kinesin. This domain, called the "motor domain," conferred on these proteins the essential property of moving on microtubules, using the energy derived from ATP hydro- sis. Since then, the identification of new proteins belonging to the kinesin superfamily of microtubule-dependent motors has gone at such a pace that nowadays more than 200 entries with motor domain sequences are deposited in the database. Kinesin family members are found in all eukaryotic org- isms tested. They present a wide range of domain organizations with a motor domain located at different positions in the molecule. Their motility prop- ties are also variable in directionality, velocity, and such other characteristics as bundling activity and processivity. Finally, and most important, they p- ticipate in a multitude of cellular functions. Our understanding of many cel- lar events, such as mitotic spindle assembly and neuronal transport, to cite only two, has progressed substantially in the last few years thanks to the id- tification of these motors.
Help your kids explore the wonders of science with over 100 easy and accessible experiments Science in Seconds for Kids: Over 100 Experiments You Can Do in Ten Minutes or Less, 2nd Edition makes learning science with your children fun and practical. Using ingredients and components found mostly in your home or classroom, Science in Seconds for Kids instructs caregivers and educators on how to create dazzling and enlightening experiments from scratch. This book utilizes bright and colorful illustrations and diagrams throughout, making the simple experiments even more accessible. Guide your kids through experiments including: Making rainbows on the floor Popping balloons with light Bending water from a faucet Making lightning in a room Keeping paper dry underwater The experiments will fascinate youngsters of all ages and encourage a love of science and learning that could last a lifetime. Science in Seconds for Kids is perfect for elementary, traditional, and homeschool educators, as well as parents, grandparents, and other caregivers.
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!
Intended for advanced undergraduates and graduate students, this book is a practical guide to the use of probability and statistics in experimental physics. The emphasis is on applications and understanding, on theorems and techniques actually used in research. The text is not a comprehensive text in probability and statistics; proofs are sometimes omitted if they do not contribute to intuition in understanding the theorem. The problems, some with worked solutions, introduce the student to the use of computers; occasional reference is made to routines available in the CERN library, but other systems, such as Maple, can also be used. Topics covered include: basic concepts; definitions; some simple results independent of specific distributions; discrete distributions; the normal and other continuous distributions; generating and characteristic functions; the Monte Carlo method and computer simulations; multi-dimensional distributions; the central limit theorem; inverse probability and confidence belts; estimation methods; curve fitting and likelihood ratios; interpolating functions; fitting data with constraints; robust estimation methods. This second edition introduces a new method for dealing with small samples, such as may arise in search experiments, when the data are of low probability. It also includes a new chapter on queuing problems (including a simple, but useful buffer length example). In addition new sections discuss over- and under-coverage using confidence belts, the extended maximum-likelihood method, the use of confidence belts for discrete distributions, estimation of correlation coefficients, and the effective variance method for fitting y = f(x) when both x and y have measurement errors. A complete Solutions Manual is available.
Bringing Scanning Probe Microscopy Up to Speed introduces the principles of scanning probe systems with particular emphasis on techniques for increasing speed. The authors include useful information on the characteristics and limitations of current state-of-the-art machines as well as the properties of the systems that will follow in the future. The basic approach is two-fold. First, fast scanning systems for single probes are treated and, second, systems with multiple probes operating in parallel are presented. The key components of the SPM are the mechanical microcantilever with integrated tip and the systems used to measure its deflection. In essence, the entire apparatus is devoted to moving the tip over a surface with a well-controlled force. The mechanical response of the actuator that governs the force is of the utmost importance since it determines the scanning speed. The mechanical response relates directly to the size of the actuator; smaller is faster. Traditional scanning probe microscopes rely on piezoelectric tubes of centimeter size to move the probe. In future scanning probe systems, the large actuators will be replaced with cantilevers where the actuators are integrated on the beam. These will be combined in arrays of multiple cantilevers with MEMS as the key technology for the fabrication process.
Considerable effort and time is allocated to introducing cell culture and fermentation technology to undergraduate students in academia, generally through a range of courses in industrial biotechnology and related disciplines. Similarly, a large number of textbooks are available to describe the appli- tions of these technologies in industry. However, there has been a general lack of appreciation of the significant developments in downstream processing and isolation technology, the need for which is largely driven by the stringent re- latory requirements for purity and quality of injectable biopharmaceuticals. This is particularly reflected by the general absence of coverage of this s- ject in many biotechnology and related courses in educational institutions. For a considerable while I have felt that there is increasing need for an introductory text to various aspects of downstream processing, particularly with respect to the needs of the biopharmaceutical and biotechnology ind- try. Although there are numerous texts that cover various aspects of protein purification techniques in isolation, there is a need for a work that covers the broad range of isolation technology in an industrial setting. It is anticipated that Downstream Processing of Proteins: Methods and Protocols will play a small part in filling this gap and thus prove a useful contribution to the field. It is also designed to encourage educational strategists to broaden the coverage of these topics in industrial biotechnology courses by including accounts of this important and rapidly developing element of the industrial process.
Since the publication in 1979 of Introduction to Analytical Electron Microscopy (ed. J. J. Hren, J. I. Goldstein, and D. C. Joy; Plenum Press), analytical electron microscopy has continued to evolve and mature both as a topic for fundamental scientific investigation and as a tool for inorganic and organic materials characterization. Significant strides have been made in our understanding of image formation, electron diffraction, and beam/specimen interactions, both in terms of the "physics of the processes" and their practical implementation in modern instruments. It is the intent of the editors and authors of the current text, Principles of Analytical Electron Microscopy, to bring together, in one concise and readily accessible volume, these recent advances in the subject. The text begins with a thorough discussion of fundamentals to lay a foundation for today's state-of-the-art microscopy. All currently important areas in analytical electron microscopy-including electron optics, electron beam/specimen interactions, image formation, x-ray microanalysis, energy-loss spectroscopy, electron diffraction and specimen effects-have been given thorough attention. To increase the utility of the volume to a broader cross section of the scientific community, the book's approach is, in general, more descriptive than mathematical. In some areas, however, mathematical concepts are dealt with in depth, increasing the appeal to those seeking a more rigorous treatment of the subject.
Speckle photography is an advanced experimental technique used for quantitatve determination of density, velocity and temperature fields in gas, liquid, and plasma flows. This book presents the most important equations for the diffraction theory of speckle formation and the statistical properties of speckle fields. It also describes experimental set-ups and the equipment needed to implement these methods. Speckle photography methods for automatic data acquisition and processing are considered and examples for their use are given.
Murray's new handbook on Gene Transfer and Expression Protocols
sets forth both current and new methodologies in a clear, concise,
easy-to-follow manner, following the successful formula of the
classic volumes in Humana's Methods in Molecular Biology series.
Each chapter is devoted to a thorough exposition of a single
technique. An Introduction explains the significance of the
protocol and provides background information. A Materials section
lists all the requirements for the technique discussed. A Methods
section details the procedure in a step-by-step protocol. A Notes
section alerts the reader to pitfalls that may be encountered, as
well as alternatives that may be used for successful completion of
the experiment. Each technique is designed to guarantee optimum
results.
The two Animal Models in Psychiatry volumes are loosely organized by subject. The first volume contains a number of chapters concerned with schizophrenia, psyc- ses, neuroleptic-induced tardive dyskinesias, and other d- orders that may involve dopamine, such as attention deficit disorder and mania. Also included is a chapter describing a behavioral model for activity-induced anorexia. The second volume deals with affective and anxiety disorders, but also includes chapters on subjects not easily classified as either psychotic, affective, or anxiety-related, such as aggression, mental retardation, and memory disorders. Four chapters on animal models of schizophrenia or psychoses are included in Volume 18 because of the importance of these disorders in psychiatry. Likewise, three chapters in the present v- ume deal with affective disorders, with a fourth chapter on circadian rhythms that also contributes to methods for a- mal models in affective disorders. Following the first four chapters are two chapters dealing with models of anxiety and panic, two chapters on aggression, one on mental retardation, and a final chapter covering memory disorders. Many of the behaviorally-based models of affective disorders involve inducing stress in a- mals, usually on a chronic basis. The first chapter by Anisman, Zalcman, Shanks, and Zacharko describes some of the neurochemical effects that are associated with the chronic application of sensors.
While determination of elastic and mechanical properties has always been important to some industrial laboratories, the significance of these measurements has increased tremendously in recent years for both academic and industrial scientists and engineers. This is as a result of new advance materials research and automated manufacturing and processing methods. "Physical Methods of Chemistry" has been written by researchers who have broad practical laboratory experience in the application of their respective techniques. The chapters provide, either directly or through clearly designated references, information that is essential to the use of these techniques in the laboratory.
This book discusses the evolution and uses for capillary
electrochromatography as a new dimension to current separation
science. With the emergence of this technique the selection of
available separation mechanisms increases dramatically. The book
also discusses the new horizons in the separation of non-polar
compounds which have been opened as a result of CEC. Over ten
chapters authors cover a wide variety of topics and provide the
reader with necessary theoretical background, description of the
instrumentation, modes of operation and methods of detection and an
overview of the broad variety of applications of capillary
electrochromatography. To view the full contents as a pdf, please click
/inca/publications/misc/621924_contents.pdfhere.
Direct cell-cell communication is a common property of multicellular organisms that is achieved through membrane channels which are organized in gap junctions. The protein subunits of these intercellular channels, the connexins, form a multigene family that has been investigated in great detail in recent years. It has now become clear that, in different tissues, connexins speak several languages that control specific cellular functions. This progress has been made possible by the availability of new molecular tools and the improvement of basic techniques for the study of membrane channels, as well as by the use of genetic approaches to study protein function in vivo. More important, connexins have gained visibility because mutations in some connexin genes have been found to be linked to human genetic disorders. Connexin Methods and Protocols presents in detail a collection of te- niques currently used to study the cellular and molecular biology of connexins and their physiological properties. The field of gap junctions and connexin research has always been characterized by a multidisciplinary approach c- bining morphology, biochemistry, biophysics, and cellular and molecular biology. This book provides a series of cutting-edge protocols and includes a large spectrum of practical methods that are available to investigate the fu- tion of connexin channels. Connexin Methods and Protocols is divided into three main parts.
This volume is a collection of contributions to the FT-IR Workshop held under the auspices of the Spectroscopy Society of Canada and organ ized by Professor Theophile Theophanides, Director of the Workshop. The gathering of leading spectroscopists and researchers at Gray Rocks to discuss .Fourier Transform Infrared Spectroscopy was the occasion of the 29th Annual Conference of the Spectroscopy Society of Canada. The plea sant surroundings of Gray Rocks, St-Jovite, Quebec, Canada contributed most positively to the success of the two-day Workshop held September 30, October 1, 1982. The preliminary program and the proceedings were distributed at the Workshop by Multiscience Publications Ltd. The publication of this volume provides the occasion to thank all the contributors for kindly accepting to lecture at the Workshop and for their collaboration. I thank Mr. AI. Dufresne for accepting to act as manager of the Workshop and Mrs. Susane Dufresne secretary of the Work shop for patiently contacting all the participants and for making the necessary arrangements of registration and accomodation."
After more than twenty years of use Good Laboratory Practice, or GLP, has attained a secure place in the world of testing chemicals and other "test items" with regard to their safety for humans and the environment. Gone are the days when the GLP regulations were hotly debated amongst scientists in academia and industry and were accused of stifling flexibility in, imaginative approaches to, and science-based conduct of, all kinds of studies concerned with toxic effects and other parameters important for the evaluation and assessment of products submitted for registration and permission to market. The GLP regulations have developed from rules on how to exactly document the planning, conduct and reporting of toxicity studies to a quality system for the management of a multitude of study types, from the simple determination of a physical/chemical parameter to the most complex field studies or ecotoxicology studies. At the same time the term "Good Laboratory Practice" has become somewhat of a slogan with the aim to characterise any reliably conducted laboratory work.
The object of this book is to provide a comprehensive treatment of the principal issues in modern instrumentation, but without attempting an encyclopedic reference. It thus discusses the basic theory and physical principles underlying the operation of the various sensors as well as the practical aspects of their operation and their incorporation into larger systems. The intent is to cover the most important topics in electronics, sensors, measurements, and acquisition systems, always keeping in mind the needs of practicing scientists and engineers. The presentation focuses on systems controlled by desktop personal computers running a high-level program and operating through internal cards or an external bus connected to instruments, rather than the specialized microprocessors discussed in older texts. The book will thus be useful to students in a wide variety of experimental sciences and engineering disciplines, including physics, chemistry, mechanical, nuclear, and electrical engineering, experimental psychology, biology, and geophysics.
The first volume in this Methods Molecular Biology series, Proteins (1984), concentrated on basic techniques for the analysis and purification of peptides and proteins. As the series developed, more specialized volumes on proteins were introduced, such as those on Immunochemical Protocols (vol. 10), Practical Protein Chro- tography (vol. 11), Analysis Glycoprotein Biomedicine (vol. 14), Protein-DNA Interactions (vol. 30), Biomembrane Protocols (vols. 19 and 27), Analyses and Methods (vol. 17), and Optical Spectroscopy, Microscopy, and Macroscopic Techniques (vol. 22). Further specialist volumes on peptides, monoclonal antibodies, immunoassays, ELISA, protein engineering, protein stability, mass spectrometry of proteins, automated sequence analysis, and protein NMR are currently in preparation. Since it is now a decade since the initial volume was published, it seems an especially appropriate moment to extensively reorganize, update, and revise the earlier volume. In an attempt to be more c- prehensive in our coverage, this current volume, Basic Protein and Peptide Protocols, is totally committed to basic analytical methods; a planned companion volume will later concentrate on preparative techniques. Those analytical techniques requiring expensive speci- ized instrumentation, such as NMR, mass spectrometry, X-ray cr- tallography, spectroscopy, and automated sequence analysis, are not described here, but in the appropriate specialized volumes listed above.
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