Closing remarks at FASEB conference on the computer as a research tool in the life sciences

1974 ◽  
pp. 257-259
Author(s):  
Donald Lindberg
Keyword(s):  
Life Sciences ◽  
Research Tool

New Aspects in the Design of Electron Optical Magnification Systems

1972 ◽  
Vol 30 ◽  
pp. 606-607
Author(s):  
Willem H.J. Andersen
Keyword(s):  
Electron Microscope ◽  
Imaging System ◽  
Chromatic Aberration ◽  
Research Tool ◽  
Energy Losses ◽  
Objective Lens ◽  
Theoretical Limit ◽  
Optical Magnification ◽  
Chromatic Aberrations ◽  
High Degree

Electron microscope design, and particularly the design of the imaging system, has reached a high degree of perfection. Present objective lenses perform up to their theoretical limit, while the whole imaging system, consisting of three or four lenses, provides very wide ranges of magnification and diffraction camera length with virtually no distortion of the image. Evolution of the electron microscope in to a routine research tool in which objects of steadily increasing thickness are investigated, has made it necessary for the designer to pay special attention to the chromatic aberrations of the magnification system (as distinct from the chromatic aberration of the objective lens). These chromatic aberrations cause edge un-sharpness of the image due to electrons which have suffered energy losses in the object.There exist two kinds of chromatic aberration of the magnification system; the chromatic change of magnification, characterized by the coefficient Cm, and the chromatic change of rotation given by Cp.

Kinetics for the Life Sciences

1995 ◽  
Author(s):  
H. Gutfreund
Keyword(s):  
Life Sciences

Methods of MolecularAnalysis in the Life Sciences

2014 ◽  
Author(s):  
Andreas Hofmann ◽  
Anne Simon ◽  
Tanja Grkovic ◽  
Malcolm Jones
Keyword(s):  
Life Sciences

Virtual Reality as a Research Tool in Neuropsychology: Depth Estimations in the Peripersonal Space

2006 ◽  
Author(s):  
Claudia Armbruster ◽  
Marc Wolter ◽  
Jakob T. Valvoda ◽  
Torsten Kuhlen ◽  
Will Spijkers ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Peripersonal Space ◽  
Research Tool
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