Soil seedbank: Old methods for new challenges in agroecology?

2020 ◽  
Vol 178 (1) ◽  
pp. 23-38 ◽  
Author(s):  
Inès Mahé ◽  
Stéphane Cordeau ◽  
David A. Bohan ◽  
Damien Derrouch ◽  
Fabrice Dessaint ◽  
...  
Keyword(s):  

Author(s):  
Joachim Frank

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.



2002 ◽  
Vol 38 (11) ◽  
pp. S127-S128
Author(s):  
M Marty


2005 ◽  
Vol 38 (17) ◽  
pp. 80
Author(s):  
NELLIE BRISTOL




2012 ◽  
Author(s):  
Maggie Campbell ◽  
Katherine Lacasse ◽  
Lucas Mazur ◽  
Rashmi Nair


2007 ◽  
pp. 33-36
Author(s):  
David Fortune
Keyword(s):  


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