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Robert K. Robinson ◽  
Geralyn McClure Franklin ◽  
Karen Epermanis ◽  
Nicole Forbes Stowell
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Title Vii ◽  
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New challenges to image processing posed by cryo-Electron microscopy of single particles

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Vol 49 ◽  
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Joachim Frank
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Electron Microscopy ◽  
Phase Contrast ◽  
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Virtual Absence ◽  
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Compared with images of negatively stained single particle specimens, those obtained by cryo-electron microscopy have the following new features: (a) higher “signal” variability due to a higher variability of particle orientation; (b) reduced signal/noise ratio (S/N); (c) virtual absence of low-spatial-frequency information related to elastic scattering, due to the properties of the phase contrast transfer function (PCTF); and (d) reduced resolution due to the efforts of the microscopist to boost the PCTF at low spatial frequencies, in his attempt to obtain recognizable particle images.

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Vol 38 (11) ◽  
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M Marty
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New Challenges

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Vol 38 (17) ◽  
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NELLIE BRISTOL
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Patient Safety ◽  
New Challenges

New Challenges Created by Success in Peace Psychology

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Author(s):  
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Katherine Lacasse ◽  
Lucas Mazur ◽  
Rashmi Nair
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New Challenges ◽  
Peace Psychology
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