scholarly journals Testosterone and Erectile Function: A Review of Evidence from Basic Research

Author(s):  
Tomoya Kataoka ◽  
Kazunori Kimura
Author(s):  
M. Nishigaki ◽  
S. Katagiri ◽  
H. Kimura ◽  
B. Tadano

The high voltage electron microscope has many advantageous features in comparison with the ordinary electron microscope. They are a higher penetrating efficiency of the electron, low chromatic aberration, high accuracy of the selected area diffraction and so on. Thus, the high voltage electron microscope becomes an indispensable instrument for the metallurgical, polymer and biological specimen studies. The application of the instrument involves today not only basic research but routine survey in the various fields. Particularly for the latter purpose, the performance, maintenance and reliability of the microscope should be same as those of commercial ones. The authors completed a 500 kV electron microscope in 1964 and a 1,000 kV one in 1966 taking these points into consideration. The construction of our 1,000 kV electron microscope is described below.


Author(s):  
M.J. Hennessy ◽  
E. Kwok

Much progress in nuclear magnetic resonance microscope has been made in the last few years as a result of improved instrumentation and techniques being made available through basic research in magnetic resonance imaging (MRI) technologies for medicine. Nuclear magnetic resonance (NMR) was first observed in the hydrogen nucleus in water by Bloch, Purcell and Pound over 40 years ago. Today, in medicine, virtually all commercial MRI scans are made of water bound in tissue. This is also true for NMR microscopy, which has focussed mainly on biological applications. The reason water is the favored molecule for NMR is because water is,the most abundant molecule in biology. It is also the most NMR sensitive having the largest nuclear magnetic moment and having reasonable room temperature relaxation times (from 10 ms to 3 sec). The contrast seen in magnetic resonance images is due mostly to distribution of water relaxation times in sample which are extremely sensitive to the local environment.


2007 ◽  
Vol 177 (4S) ◽  
pp. 264-265
Author(s):  
Ling De Young ◽  
KokBin Lim ◽  
Jeffery Carson ◽  
Trustin Domes ◽  
Mussa Al-Numi ◽  
...  

2007 ◽  
Vol 177 (4S) ◽  
pp. 386-387
Author(s):  
Andreas Bannowsky ◽  
Heiko Schulze ◽  
Christof van der Horst ◽  
Stefan Hautmann ◽  
Klaus P. Juenemann

2005 ◽  
Vol 173 (4S) ◽  
pp. 78-79 ◽  
Author(s):  
David Burday ◽  
Tim Weber ◽  
Scott Thurman ◽  
Rafael E. Carrion ◽  
Jorge Lockhart
Keyword(s):  

2005 ◽  
Vol 173 (4S) ◽  
pp. 91-91 ◽  
Author(s):  
Jennifer Tash Anger ◽  
Neil D. Sherman ◽  
George D. Webster
Keyword(s):  

2004 ◽  
Vol 171 (4S) ◽  
pp. 373-373
Author(s):  
Trinity J. Bivalacqua ◽  
Mustafa F. Usta ◽  
Hunter C. Champion ◽  
Weiwen Deng ◽  
Philip J. Kadowitz ◽  
...  

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