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Books > Science & Mathematics > Science: general issues > Scientific equipment & techniques, laboratory equipment > Microscopy
With many chemicals once used to prepare and mount specimens on
slides now banned or deemed toxic, the enthusiast microscopist
requires accress to easy-to-source mixes and chemicals to mount
their own slides. This work by Walter Dioni provides a perfect
solution.
Knowledge of the microscopic structure of biological systems is the
key to understanding their physiological properties. Most of what
we now know about this subject has been generated by techniques
that produce images of the materials of interest, one way or
another, and there is every reason to believe that the impact of
these techniques on the biological sciences will be every bit as
important in the future as they are today. Thus the 21st century
biologist needs to understand how microscopic imaging techniques
work, as it is likely that sooner or later he or she will have to
use one or another of them, or will otherwise become dependent on
the information that they provide. The objective of this textbook
is to introduce its readers to the many techniques now available
for imaging biological materials, e.g. crystallography, optical
microscopy and electron microscopy, at a level that will enable
them to use them effectively to do research. Since all of these
experimental methods are best understood in terms of Fourier
transformations, this book explains the relevant concepts from this
branch of mathematics, and then illustrates their elegance and
power by applying them to each of the techniques presented. The
book is derived from a one-term course in structural biology that
the author gave for many years at Yale. It is intended for students
interested either in doing structural research themselves, or in
exploiting structural information produced by others. Over the
years, the course was taken successfully by advanced undergraduates
and by graduate students. Scientists interested in entering the
structural biology field later in their careers may also find it
useful.
AN INTRODUCTION TO The Theory and Use of the Microscope BY C. R.
MARSHALL, M. A., M. D., LL. D. Professor of Materia Medico, and
Therapeutics in the University of Aberdeen. AND H. D. GRIFFITH, B.
A. Carnegie Teaching Fellow in Natural Philosophy in the University
of Aberdeen. WITH TWENTY-NINE FIGURES IN THE TEXT AND THREE PLATES
LONDON GEORGE ROUTLEDGE SONS, LTD. BROADWAY HOUSE 68-74 CARTER
LANE, E. G. PRINTED IN GREAT BRITUN BY W. JOLLY AND SONS, LTD.,
ABERDEEN. FOREWORD. THE inspiration of this brochure was the
institution of lectures and practical work on Microscopy as part of
the class of Medical Physics in the University of Aberdeen. It was
felt that a small textbook covering the work of the systematic
lectures would be helpful . to the student and might aid him to
realize the capabilities, limitations and proper method of use of
the instrument. A chapter on the elementary mathematical treat ment
of certain problems discussed in the text has been added. It is
hoped that the work will prove of value to all students who require
a microscope in their studies as well as to those amateur
microscopists who wish to understand the fundamental principles on
which Microscopy is based. C. R. M. H. D. G. January, 1928.
CONTENTS. PAGE. INTRODUCTION i 10 The Simple Convex Lens Formation
of the Image The Influence of the Eye Visibility of Objects The
Simple Microscope The Compound Microscope. THE LENSES OF THE
MICROSCOPE . . . n 32 Chromatic Aberration Spherical Aberration.
OBJECTIVES. Achromatic, Semi-apochromatic, Apochromatic Focal
Length Numerical Aperture Depth of Focus Working Distance Flatness
of Field. EYEPIECES. Huyghenian Positive-Ramsden Disc Magnifying
Power. CONDENSERS. AbbeAchromatic - Critical Illumination Focal
Length Dark Ground Condensers Ultra Microscopy. RESOLUTION 33 36
Limit of Microscopic Vision Ultra-Violet Microscopy Abbes
Diffraction Theory. THE STAND 37 44 The Foot The Stage The Substage
The Body The Nose Piece The Limb Choice of Stand Choice of
Objectives Choice of Eyepieces Testing Objectives. ILLUMINANTS 45
49 Illumination of Transparent Objects Dark Ground Effects Oblique
Illumination Illu ination of Opaque Objects, vili. CONTENTS
ADJUSTMENT 50 56 Adjustment of Mirror Focusing of Condenser
Centering of Condenser Adjustment of Iris Diaphragm Adjustment of
Tube Length Changing Objectives Changing Eyepieces Care of the
Microscope., MlCROMETRY 57 62 Stage and Eyepiece Micrometers
Photo-Micrography Measurement of Magnification Drawing Eyepieces
Measurement of Thick ness. SPECTROSCOPY . ... 6364 SPECIAL
MICROSCOPES ...... 65 72 The Metallurgical Microscope The Petro
logical Microscope. Binocular Microscopes Greenough Wenham,
Compound Prism Abbes Stereoscopic Eye piece Binocular Vision
Binocular Rivalry. PHYSICAL PROOFS 73 84 Magnification Numerical
Aperture Depth of Focus Ramsden Circle Chromatic Correction Sine
Condition and Aplanatism Resolution. INDEX, 85 90 PLATES to face
pp. 6, 28, 36 AN INTRODUCTION TO THE THEORY AND USE OF THE
MICROSCOPE. THE function of the microscope is to reveal detail of
the structure of objects too small to be visible to the unaided
eye. This end is attained by the use of a series of lenses which
make the object appear magnified to the observer. The magnification
to be of value must extend to the finest detail of the object and
each successive stage of magnification should reveal structure
invisible without its aid.So-called c resolution J of detail in an
object does not of necessity result from mere optical
magnification. Magnification is necessary to attain it, but other
factors are involved. It is the aim of this brochure to explain the
principles of microscopy and the manipulations by which resolution
is obtained. For these purposes it is essential to consider first
certain properties of the simple convex lens, and some of the
conditions governing the visibility of objects. THE SIMPLE CONVEX
LENS...
In 1987, Barry Lynes wrote the classic book on Rife history called
The Cancer Cure That Worked. Rife's World of Electromedicine is the
sequel, published in 2009. What is the difference between the two
books? The Cancer Cure That Worked was primarily a biographical
account of Royal Raymond Rife's life and work, including detailed,
dated records of the events which occurred, and in-depth accounts
from the people involved. Rife's World of Electromedicine, on the
other hand, is a bird's eye view, short summary of the same time
period and events. Instead of a detailed biography, Rife's World is
an expository piece that includes brief, targeted chapters
addressing each aspect of Rife's era, utilizing piercing, specific,
and direct quotes and excerpts from historical documents including
magazine and newspaper articles, court transcripts, Rife's own
statements, and the eye-witness accounts of those who were present
during Rife's lifelong achievements. Written as a short story,
Rife's World is affordably priced so that everyone can read about
Royal Raymond Rife. The book is a perfect gift for someone who
wants to find out more about Rife but doesn't have time to read a
longer book. Additionally, the new book explains what 20] years of
additional research and document retrieval by a dedicated grass
roots group have discovered and unearthed. Some of the previously
missing, key factors in the suppressed and censored cure for cancer
were lost or even locked away in physicians' closets for decades in
order to prevent censors from destroying overwhelming evidence.
Now, this evidence is printed for the first time in Rife's World.
The scanning tunneling microscope and the atomic force microscope,
both capable of imaging and manipulating individual atoms, were
crowned with the Nobel Prize in Physics in 1986, and are the
cornerstones of nanotechnology today. The first edition of this
book has nurtured numerous beginners and experts since 1993. The
second edition is a thoroughly updated version of this 'bible' in
the field. The second edition includes a number of new developments
in the field. Non-contact atomic-force microscopy has demonstrated
true atomic resolution. It enables direct observation and mapping
of individual chemical bonds. A new chapter about the underlying
physics, atomic forces, is added. The chapter on atomic force
microscopy is substantially expanded. Spin-polarized STM has
enabled the observation of local magnetic phenomena down to atomic
scale. A pedagogical presentation of the basic concepts is
included. Inelastic scanning tunneling microscopy has shown the
capability of studying vibrational modes of individual molecules.
The underlying theory and new instrumentation are added. For
biological research, to increase the speed of scanning to observe
life phenomena in real time is a key. Advanced in this direction is
presented as well. The capability of STM to manipulate individual
atoms is one of the cornerstones of nanotechnology. The theoretical
basis and in particular the relation between tunneling and
interaction energy are thoroughly presented, together with
experimental facts.
Cryoelectron microscopy of biological molecules is among the
hottest growth areas in biophysics and structural biology at
present, and Frank is arguably the most distinguished practitioner
of this art. CryoEM is likely over the next few years to take over
much of the structural approaches currently requiring X-ray
crystallography, because one can now get good and finely detailed
images of single molecules down to as little as 200,000 MW,
covering a substantial share of the molecules of greatest
biomedical research interest. This book, the successor to an
earlier work published in 1996 with Academic Press, is a natural
companion work to our forthcoming book on electron crystallography
by Robert Glaeser, with contributions by six others, including
Frank. A growing number of workers will employ CryoEM for
structural studies in their own research, and a large proportion of
biomedical researchers will have a growing interest in
understanding what the capabilities and limits of this approach
are.
Distributed feedback (DFB) semiconductor lasers emit light in a
single mode which is essential to providing the carrier in long
haul high bit-rate optical communication systems. This
comprehensive research monograph provides: thorough analysis of the
operation and design of DFB lasers a high level of tutorial
discussion with many valuable appendices the first full account of
time-domain numerical modelling techniques applicable to future
optical systems as well as present devices Web access to a suite of
MATLAB programs (student version MATLAB 4 or higher). It is
essential reading for those studying optical communications at
graduate and advanced under-graduate level, and a key book for
industrial designers of opto-electronic devices.
Advances in Imaging & Electron Physics merges two long-running
serials--Advances in Electronics & Electron Physics and
Advances in Optical & Electron Microscopy. The series features
extended articles on the physics of electron devices (especially
semiconductor devices), particle optics at high and low energies,
microlithography, image science and digital image processing,
electromagnetic wave propagation, electron microscopy, and the
computing methods used in all these domains.
Microscopy is a dynamic area of science, incorporating both basic
classroom microscopes and sophisticated research style instruments
that can be driven by light, electrons, or X-rays. The rate of
advance in the area over the last 50 years has led to a number of
technological advances. In this Very Short Introduction Terence
Allen, an established expert on microscope techniques, describes
the scientific principles behind the main forms of microscopy, and
the exciting new developments in the field. Focusing on the main
underlying principles, and introducing the power of what is
achievable today using microscopes, Allen demonstrates how
microscopy impinges on almost every aspect of our daily lives; from
medical diagnosis to quality control in manufacture. Beginning with
a brief history of the early stages of microscopy development,
Allen then concludes with a comprehensive account of the diverse
spectrum of microscopy available today. ABOUT THE SERIES: The Very
Short Introductions series from Oxford University Press contains
hundreds of titles in almost every subject area. These pocket-sized
books are the perfect way to get ahead in a new subject quickly.
Our expert authors combine facts, analysis, perspective, new ideas,
and enthusiasm to make interesting and challenging topics highly
readable.
This book provides a comprehensive introduction to the field of
scanning optical microscopy for scientists and engineers. The book
concentrates mainly on two instruments: the Confocal Scanning
Optical Microscope (CSOM), and the Optical Interference Microscope
(OIM). A comprehensive discussion of the theory and design of the
Near-Field Scanning Optical Microscope (NSOM) is also given.
The text discusses the practical aspects of building a confocal
scanning optical microscope or optical interference microscope, and
the applications of these microscopes to phase imaging, biological
imaging, and semiconductor inspection and metrology.A comprehensive
theoretical discussion of the depth and transverse resolution is
given with emphasis placed on the practical results of the
theoretical calculations and how these can be used to help
understand the operation of these microscopes.
Key Features
* Provides a comprehensive introduction to the field of scanning
optical microscopy for scientists and engineers
* Explains many practical applications of scanning optical and
interference microscopy in such diverse fields as biology and
semiconductor metrology
* Discusses in theoretical terms the origin of the improved depth
and transverse resolution of scanning optical and interference
microscopes with emphasis on the practical results of the
theoretical calculations
* Considers the practical aspects of building a confocal scanning
or interference microscope and explores some of the design
tradeoffs made for microscopes used in various applications
* Discusses the theory and design of near-field optical
microscopes
* Explains phase imaging in the scanning optical and interference
microscopes
This book deals with the subject of secondary energy spectroscopy
in the scanning electron microscope (SEM). The SEM is a widely used
research instrument for scientific and engineering research and its
low energy scattered electrons, known as secondary electrons, are
used mainly for the purpose of nanoscale topographic imaging. This
book demonstrates the advantages of carrying out precision electron
energy spectroscopy of its secondary electrons, in addition to them
being used for imaging. The book will demonstrate how secondary
electron energy spectroscopy can transform the SEM into a powerful
analytical tool that can map valuable material science information
to the nanoscale, superimposing it onto the instrument's normal
topographic mode imaging. The book demonstrates how the SEM can
then be used to quantify/identify materials, acquire bulk density
of states information, capture dopant density distributions in
semiconductor specimens, and map surface charge distributions.
Due to its nondestructive imaging power, scanning tunneling
microscopy has found major applications in the fields of physics,
chemistry, engineering, and materials science. This book provides a
comprehensive treatment of scanning tunneling and atomic force
microscopy, with full coverage of the imaging mechanism,
instrumentation, and sample applications. The work is the first
single-author reference on STM and presents much valuable
information previously available only as proceedings or collections
of review articles. It contains a 32-page section of remarkable STM
images, and is organized as a self-contained work, with all
mathematical derivations fully detailed. As a source of background
material and current data, the book will be an invaluable resource
for all scientists, engineers, and technicians using the imaging
abilities of STM and AFM. It may also be used as a textbook in
senior-year and graduate level STM courses, and as a supplementary
text in surface science, solid-state physics, materials science,
microscopy, and quantum mechanics.
How is existing knowledge reconciled with new information in the
mind of a young child, as compared to that of a more sophisticated
thinker?
Development of Scientific Thinking Skills explores a new framework
for the conceptualization of changes in the strategies of inductive
reasoning from middle childhood to adulthood.
Key Features
* Cognitive development
* Thinking skills
* Scientific thinking
* Evidence evaluation
* Theory Revision
Allgemeine Informationen, - Datenverwaltung mit Excel und SAS
Studio.- Datenmanagement mit Excel und SAS Studio.- Vorbemerkungen
und Informationen zur statistischen Analyse medizinischer Daten.-
Deskriptive Statistik.- Zusammenhang von Variablen.- Statistische
Tests fur unabhangige Beobachtungen.- Statistische Tests fur
abhangige Beobachtungen.- Einstichprobentests und
Konfidenzintervalle.- UEberlebenszeitanalyse.-
Fallzahlberechnungen.- Anhang.
The Biology of Human Starvation was first published in 1950.
Minnesota Archive Editions uses digital technology to make
long-unavailable books once again accessible, and are published
unaltered from the original University of Minnesota Press editions.
With great areas of the world battling the persistent and basic
problem of hunger, this work constitutes a major contribution to
needed scientific knowledge. The publication is a definitive
treatise on the morphology, biochemistry, physcology, psychology,
and medical aspects of calorie undernutrition, cachexia,
starvation, and rehabilitation in man. Presented critically
and systematically are the fact and theory from the world
literature, including the evidence from World War II and the
finding of the Minnesota Starvation Experiment (1944*1946).
Pertinent experiments and field and clinical observations to 1949
are covered. The extensive original research involved was
conducted at the University of Minnesota Laboratory of
Physiological Hygiene, which Dr. Keys heads. The authors, all of
the laboratory staff, were assisted in preparation of the work by
Ernst Simonson, Samuel Wells and Angie Sturgeon Skinner.
The Biology of Human Starvation was first published in 1950.
Minnesota Archive Editions uses digital technology to make
long-unavailable books once again accessible, and are published
unaltered from the original University of Minnesota Press
editions.With great areas of the world battling the persistent and
basic problem of hunger, this work constitutes a major contribution
to needed scientific knowledge. The publication is a definitive
treatise on the morphology, biochemistry, physcology, psychology,
and medical aspects of calorie undernutrition, cachexia,
starvation, and rehabilitation in man. Presented critically and
systematically are the fact and theory from the world literature,
including the evidence from World War II and the finding of the
Minnesota Starvation Experiment (1944*1946). Pertinent experiments
and field and clinical observations to 1949 are covered. The
extensive original research involved was conducted at the
University of Minnesota Laboratory of Physiological Hygiene, which
Dr. Keys heads. The authors, all of the laboratory staff, were
assisted in preparation of the work by Ernst Simonson, Samuel Wells
and Angie Sturgeon Skinner.
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