Die nichtinvasive Erfassung des arteriellen Pulswellensignals erlaubt Pulsmessung, Pulsoximetrie bis hin zu Gefassrisikobewertung direkt am Unterarm. Robert Couronne beschreibt zwei Modellsimulationen der Photonenausbreitung im Unterarmgewebe. Anhand gemessener Intensitaten verifiziert der Autor die erweiterte Lambert-Beer-Beziehung eines planaren Schichtenmodells und untersucht mithilfe eines Zylindermodells die Intensitatsverteilung entlang des Unterarmumfangs, wobei bevorzugte Ableitregionen identifiziert werden. Zum experimentellen Nachweis stellt der Autor den Prototyp eines optisch-transmissiven Mehrkanalsensorsystems vor und zeigt anhand von Probandenmessungen die technische Signalgewinnung und praktische Anwendbarkeit. Mit einem Klassifikationsverfahren kann die automatische Signalidentifikation sowie eine Qualitatsbewertung im Realzeitbetrieb erreicht werden. Die vorgestellten Verfahren sind dabei auf gangigen Mikrocontroller-Plattformen lauffahig."

The use of stable isotopes in nutritional studies is now widespread, and the technique is becoming increasingly popular. Practical applications are numerous and include: calcium and iron absorption studies, studies looking at the impacts of diet, physical activity, aging, and medical therapy and supplementation on nutrient metabolism, the measurement of energy cost of pregnancy, studies on the causes of growth faltering in infants, and investigations into childhood and adult obesity. This book is designed as a laboratory handbook of methods used to perform stable isotope studies in humans. It covers basic principles, dosage information, sample preparation procedures, analytical instrumentation, and necessary mathematical methods and provides the fundamentals to enable researchers to evaluate and establish stable isotope methods in their own laboratories.

Il libro prende le mosse dai pensieri di un giovane che alla maturita liceale si trova affascinato dalla cultura dei classici greco-latini, dai rudimenti filosofici e dall impatto con le scienze fisiche e naturali. Il latino e i suoi naturalisti hanno suscitato un fervore verso la Botanica Sistematica che lo riporta a Linneo e quindi alla conoscenza del mondo naturale, all esperienza della denominazione dell esistente come conoscenza e quindi agli universali di Guglielmo d Occam. La scelta della facolta di Medicina fungera da mediazione fra la filosofia, vista come via alla verita, e la biologia con il grande mistero dell uomo nella sua dualita di mente/corpo. L incontro con il microscopio aprira la strada all approfondimento della biologia, ma anche alla ricerca dei significati e delle interpretazioni del mondo. I meccanismi della percezione, visiva in particolare, nelle articolazioni della Gestaltpsychologie, e i suoi rapporti con il mondo interiore, sia quello della memoria esplicita che della memoria implicita, sono affrontati nell esplorazione del mondo attraverso il microscopico e nella ricerca di una obiettivita scientifica. Locke e Kant, Popper e Heidegger fanno da contraltare a Ramon y Cajal, Golgi, Kandel, Heisenberg, mentre la semiotica illumina e confonde sull importanza del linguaggio per la conoscenza. Il segno e il suo riconoscimento si trasferiscono nella scienza attraverso l inter-soggettivita e il linguaggio appare come l unico modo di penetrare l esistente. Il libro si dilunga sull origine di certe denominazioni in patologia tratte dalla vita quotidiana, sull antropomorfismo spesso applicato agli oggetti del campo microscopico, sempre illustrati su base fenomenologica e psicologica.

This DK children's book aged 11-14 is brimming with exciting, educational activities and projects that focus on electronics and technology.

Keep your siblings out of your room with a brilliant bedroom alarm, power a propellor motorboat, make a stereo from pipes, build your own AM radio, and construct a night light by following step-by-step instructions and using affordable equipment. Inventor Lab will engage budding scientists and engineers as they experiment, invent, trial, and test technology, electronics, and mechanics at home.

Simple steps with clear photographs take readers through the stages of each low-cost project, with fact-filled "How it works" panels to explain the science behind each one, and to fascinate them with real-world examples.

With an increasing focus across school curricula on encouraging children to enjoy and explore STEM subjects (science, technology, engineering, and maths), Inventor Lab is the perfect companion for any inquisitive child with an interest in how the worlds of science experiments and technology work, and why.

All you need to explore science is a kitchen, this book - and a dash of curiosity The Kitchen Science Cookbook is a beautifully crafted book with a unique twist: each recipe is a science experiment that you can do at home, using the everyday ingredients you'll find in your kitchen. No need to be a science expert -- these easy-to-follow recipes make mind-blowing science experiments fun for everyone. From sticky ice and raising raisins to balloon science and scrumptious slime, nanotechnologist and educator Michelle Dickinson shows that we can all be scientists, no matter how young or old. With recipes tested by hundreds of enthusiastic families around the world, The Kitchen Science Cookbook is the perfect gift for all ages.

If you're taking a basic course in classical physics, or have a healthy curiosity for the way things work in the physical world, the Illustrated Guide to Home Physics Experiments provides an ideal hands-on introduction to physics lab techniques and data analysis. With this book and a few simple (and inexpensive) tools and materials, you'll learn to conduct experiments that answer questions about our world, make demonstrations to show off physical principles, and do theoretical lab work to discover how the world works. Perfect for do-it-yourselfers, home-schooled high school students, and college students, this book will help you: Learn everything from the basics of motion all the way to particle physics - including energy, thermodynamics, magnetic fields, optics, and much more Take careful measurements of physical phenomena and conduct data analysis Build and perform physics demonstrations that are fascinating and fun Construct computer models to represent aspects of the physical world It's easy to get started. You can build most of the experiments and demonstrations in this book with ordinary household tools, using materials that you can scrounge, borrow, or get free. The most important thing is your willingness to enter the door of discovery that awaits you. The Illustrated Guide to Home Physics Experiments is your key.

Thomas Hankins and Robert Silverman investigate an array of instruments from the seventeenth through the nineteenth century that seem at first to be marginal to science--magnetic clocks that were said to operate by the movements of sunflower seeds, magic lanterns, ocular harpsichords (machines that played different colored lights in harmonious mixtures), Aeolian harps (a form of wind chime), and other instruments of "natural magic" designed to produce wondrous effects. By looking at these and the first recording instruments, the stereoscope, and speaking machines, the authors show that "scientific instruments" first made their appearance as devices used to evoke wonder in the beholder, as in works of magic and the theater. The authors also demonstrate that these instruments, even though they were often "tricks," were seen by their inventors as more than trickery. In the view of Athanasius Kircher, for instance, the sunflower clock was not merely a hoax, but an effort to demonstrate, however fraudulently, his truly held belief that the ability of a flower to follow the sun was due to the same cosmic magnetic influence as that which moved the planets and caused the rotation of the earth. The marvels revealed in this work raise and answer questions about the connections between natural science and natural magic, the meaning of demonstration, the role of language and the senses in science, and the connections among art, music, literature, and natural science. Originally published in 1995. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.

This book is an introduction to concepts needed in the different parts of the process of doing science. It includes topics that will help achieve clarity in the posing of scientific questions, the design of ways to answer the questions, and the methods to evaluate the results and effectively communicate scientific information. It will be useful to the professional or student in the practice of writing papers, books or journal articles and can be applied to almost any area of science that requires presentation of data in an effective and informative way.

There is an increasing need for analysts to understand and be able to quantify the performance of analytical instruments, in particular with respect to the following:
* specifying equipment for purchase
* estimating uncertainties in intrumental measurements
* quantifying and demonstrating performance quality
This text links together an understanding of performance characteristics with an appreciation of the limitations imposed by instrument design, leading to the interplay of the validation and qualification processes within quality assurance systems.
A unique framework of topics covers the major instrumental techniques of spectrophotometry, chromatography, capillary electrophoresis, and atomic emission spectroscopy. The use of over 200 questions and answers, together with cross-referencing, helps to develop a thorough understanding of the various concepts that underpin the different techniques.
This book will appeal to a broad range of professional chemists, technicians and students, weither with reference to specific analytical techniques, or within a general course of study in instrumental performance.
Analytical Techniques in the Sciences
This series of books provides coverage of all the major analytical techniques and their application in the most important areas of physical, life and materials sciences. Each text is presented in an open learning/distant learning style, in which the learning objectives are clearly identified. The reader's understanding of the material is constantly evaluated by the use of self-assessment and discussion questions.

Wie geht es weiter - nach der erfolgreichen Promotion? Wohin soll die medizinische Laufbahn fuhren? Dieser Leitfaden wird Ihnen bei der schwierigen Entscheidung eine wertvolle Stutze sein. Eine erfahrene Medizinjournalistin portratiert hier alle Facharztrichtungen der Ausbildungsordnung der OEsterreichischen AErztekammer - von der Anasthesie bis hin zur Zahnmedizin. Zusatzlich prasentiert sie die Additivfacher der einzelnen Sonderfacher und informiert Sie uber die neue Ausbildung zum Allgemein- bzw. Zahnmediziner. Kompakt und ubersichtlich beantwortet sie folgende Fragen: Wie gestaltet sich die Ausbildung? Welche Fahigkeiten und persoenlichen Eigenschaften sind in welchem Fach gefragt? Und: An welches Fach haben Sie bisher noch nie gedacht?

This book should be on the shelf of every practising statistician who designs experiments. Good design considers units and treatments first, and then allocates treatments to units. It does not choose from a menu of named designs. This approach requires a notation for units that does not depend on the treatments applied. Most structure on the set of observational units, or on the set of treatments, can be defined by factors. This book develops a coherent framework for thinking about factors and their relationships, including the use of Hasse diagrams. These are used to elucidate structure, calculate degrees of freedom and allocate treatment subspaces to appropriate strata. Based on a one-term course the author has taught since 1989, the book is ideal for advanced undergraduate and beginning graduate courses. Examples, exercises and discussion questions are drawn from a wide range of real applications: from drug development, to agriculture, to manufacturing.

Scientists' views on what makes an experiment successful have developed dramatically throughout history. Different criteria for proper experimentation were privileged at different times, entirely new criteria for securing experimental results emerged, and the meaning of commitment to experimentation altered. In About Method, Schickore captures this complex trajectory of change from 1660 to the twentieth century through the history of snake venom research. As experiments with poisonous snakes and venom were both challenging and controversial, the experimenters produced very detailed accounts of their investigations, which go back three hundred years-making venom research uniquely suited for such a long-term study. By analyzing key episodes in the transformation of venom research, Schickore is able to draw out the factors that have shaped methods discourse in science. About Method shows that methodological advancement throughout history has not been simply a steady progression toward better, more sophisticated and improved methodologies of experimentation. Rather, it was a progression in awareness of the obstacles and limitations that scientists face in developing strategies to probe the myriad unknown complexities of nature. The first long-term history of this development and of snake venom research, About Method offers a major contribution to integrated history and philosophy of science.

This monograph describes the theoretical bases and experimental prerequisites for methods such as spin fluorescence, triplet, Mo ssbauer, photochromic and electron-density labeling, including the procedures used to obtain specifically modified proteins, enzymes, biomembranes, nucleic acids, and other biological molecules. The fundamentals of the physical theory behind each technique is explained and details are given of how to interpret the experimental data obtained. Special sections deal with critical reviews of recent data on the structure, molecular dynamics and conformational transitions of biological molecules. Each section concludes with a discussion of the results obtained from these techniques in connection with various problems of enzyme catalysis, electron transfer, molecular biophysics and molecular biology. The uses that labeling techniques can be put to for the investigation of whole cells and tissues are also discussed.

The past six years have seen a substantial increase in the attention paid by research workers to the principles of experimental design. The Second Edition of brings this handbook up to date, while retaining the basic framework that made it so popular. Describes the most useful of the designs that have been developed with accompanying plans and an account of the experimental situations for which each design is most suitable. Examples come from diverse fields of research, with an emphasis on biology and agriculture, two of the authors' specialties. New chapters have been added: one discusses the fractional replication of experiments. A second is concerned with experiments of the factorial type that present new methods and designs in which the factors represent quantitative variables measured on a continuous scale. Other new material includes an introductory account of experimental strategies for finding the levels at which the factors must be set in order to obtain maximum response and coverage of new incomplete block designs.

Millionen von Medizin-Seiten im Internet machen den Durchblick schwer. Als kompakter, praxisbezogener Wegweiser durch diesen Informationsdschungel hilft das Buch Medizinern, das Internet optimal fur sich zu nutzen. Es erklart schrittweise den Umgang mit Daten und Datenbanken, bewertet die wichtigsten Internetadressen und informiert uber interessante Websites. Wer sich fur eine eigene Praxis-Homepage, Praxis-Netze oder telemedizinische Anwendungen interessiert, findet hier verstandliche Informationen und Anleitungen.

Die Fort- und Weiterbildungskurse der ASG-Fellows sind seit uber 10 Jahren ein Fortbildungsprogramm und mit jeweils 5-6 Schwerpunktthemen fester Bestandteil des Kongresses der DGOT. Die Fortbildungskurse richten sich an angehende Facharzte fur Orthopadie, aber auch an erfahrene Orthopaden in Praxis und Klinik, die von bestausgewiesenen Wissenschaftlern eine kompetente UEbersicht uber Neues zu aktuellen und modernen Krankheitsbildern erfahren und Strategien in Diagnostik und Therapie dargestellt bekommen. Die verschiedenen UEbersichtsreferate sind topographisch jeweils in einem Band zusammengefasst.

As careers in science have become increasingly demanding, they require much more than a keen scientific mind and practical ability. If you are considering a career in research, have already embarked on your career and want to succeed, are uncertain which route to take or advise, train or supervise scientists, this book offers some helpful advice. Nancy Rothwell, a senior scientist with extensive experience training scientists and communicating with the public, covers topics ranging from choosing a PhD or postdoctoral position, successful interviews and preparing your cv to managing your supervisor; how to give successful talks, publish high quality papers and become known within your field. Broader aspects of science which are so important today are also covered, including ethics and fraud, intellectual property and exploitation and disseminating science to the public.

This classic companion to undergraduate practical work in physics describes the purposeful, critical approach that should be made to all physics experiments. It covers the statistical treatment of data and experimental methods, and gives advice on keeping efficient records, calculations, and scientific writing. The new edition features treatment of the c2 distribution, a section on atomic clocks, worked examples based on spreadsheets, and additional exercises. Existing examples and references have been brought up to date. The text is liberally illustrated with examples and exercises, with solutions to the latter. Although intended for undergraduates, Practical Physics will be of interest to researchers, not only in physics, but in other sciences as well.

The first book of its kind on marrow stromal cells, and written by leading experts in the field, this concise handbook aims to provide all that is needed to those new to this relatively young area of research. It provides a historical perspective and a summary of present knowledge of the marrow stromal lineages which are currently best understood. Detailed protocols for the isolation, culture and characterization of marrow stromal cell types from human and other animal species are given. The breadth and depth of the subject matter included makes the book equally suitable for new researchers and the more experienced investigator in this rapidly expanding field, including clinicians and bioscientists.

The Works of Archimedes: Edited in Modern Notation With Introductory Chapters Authored by T.L. Heath Sc.D.

2. ERFOLGREICHES SUCHEN IN DATENBANKEN 2. 1. Suchstrategien 3 2. 2. Suchbeispiele 8 2. 2. 1. LITERA TURDA TENBANKEN 9 2. 2. 1. 1. Medline 37 2. 2. 1. 2. Science Citation Index 42 2. 2. 1. 3. Spektrum der Wissenschaft 2. 2. 1. 4. VLB (=Verzeichnis lieferbarer Bucher) 44 2. 2. 2. FAKTENDATENBANKEN 49 2. 2. 2. 1. Drug Information Fulltext 61 2. 2. 2. 2. Meyler's Side Effects of Drugs 2. 2. 2. 3. Physician Data Query (PDQ) 70 87 2. 2. 2. 4. EMBL -Datenbanken 3. BIBLIOTHEKSKATALOGE 3. 1. Kataloge amerikanischer Bibliotheken 97 3. 2. Kataloge deutscher Bibliotheken 102 3. 3. Kataloge osterreichischer Bibliotheken 105 4. GALE DIRECTORY OF DA TABASES - DIE "DATENBANK DER DATENBANKEN" 110 5. ORIGINALLITERATUR INNERHALB VON 24 STUNDEN Zentralbibliothek der Medizin (KOIn) 113 6. MEDIZINISCHE DATENBANKEN 6. 1. A bledata 115 6. 2. Acubase 115 6. 3. Aesculapis Project -WHO 115 6. 4. Ageline 115 6. 5. AIDS -Database 116 6. 6. AIDS Information and Education Worldwide 116 116 6. 7. AIDSLINE 6. 8. A IDS-Newsletter-BHTD 117 VI I nhaltsverzeichnis 6. 9. AIDS-Supplement 117 6. 10. Alcohol and Alcohol Problems Science Database 117 6. 11. Alcohol Information for Clinicians and Educators Database 118 6. 12. Allied & Alternative Medicine 118 6. 13. American Journal of Diseases of Children 118 6. 14. American Medical Association Journals Online 119 6. 15. AMIA Communications Network 119 6. 16. Anatomist 119 6. 17. Arzte Zeitung 120 6. 18. Bacteriology Abstracts 120 6. 19.

Everything you need to make the most of spot and screen tests

Spot Test Analysis demonstrates hundreds of valuable applications for the simple spot and screen test. Whether screening for cholesterol in blood, conducting antibody-based field tests for explosives, or even doing preliminary examinations, this laboratory reference book contains the detailed procedural information necessary for conducting rapid, on-the-spot chemical tests.

This new edition is revised and updated to provide the most useful information in the field. Among the important applications featured in this broad, far-reaching book are:

• Spot tests in clinical analysis
• Field and spot tests used in geochemistry and geochemical exploration
• Tests for detection and evaluation of air pollution
• Water quality screening for organic and inorganic materials
• Rapid screen tests of soils and plant tissues
• Screen tests for food adulteration and food composition

Spot Test Analysis, Second Edition is an indispensable resource for professionals in forensics, geochemistry, medicine, and public health.

Quick, inexpensive, and increasingly more sophisticated, the simple spot test has transformed the ways analysts screen for chemicals. In the past few decades, technological advancements have permitted enormous amplification of the resulting signal. This progression, coupled with a trend toward simplification, has enabled professionals in forensics, geochemistry, medicine, and public health to answer analytical questions with minimum cost and time.

Spot Test Analysis, Second Edition is a practical and far-reaching laboratory reference book. In addition to explaining the contemporary uses of spot and screen tests, this text describes the most up-to-date techniques for academic, medical, and commercial applications.

In this new edition, Dr. Ervin Jungreis provides detailed procedural information. While the screen and spot tests discussed here do not attempt to stand in for necessary complex analytical investigations, they do demonstrate that rapid methods are sufficient to register gross deviation from a norm and establish a conclusive negative.

This revised and updated Second Edition is as thorough in its treatment of techniques and applications as its predecessor. It provides many new wet and dry immunoassay procedures, such as tests for cholesterol and HDL, HIV and HSV, drugs, and explosives. Whole sections are devoted to spot testing in geochemistry, detecting toxins in air pollution, testing water for inorganic matter, and analyzing diagnostic test strips for foods, such as diethylene glycol in wine, saxitoxin in shellfish, and antibiotics in milk.