scholarly journals Mercury Exposure from Domestic and Imported Estuarine and Marine Fish in the U.S. Seafood Market

2007 ◽  
Vol 115 (2) ◽  
pp. 235-242 ◽  
Author(s):  
Elsie M. Sunderland
Keyword(s):  
2019 ◽  
Vol 102 (5) ◽  
pp. 714-720 ◽  
Author(s):  
Na Zheng ◽  
Sujing Wang ◽  
Wu Dong ◽  
Xiuyi Hua ◽  
Yunyang Li ◽  
...  

2014 ◽  
Vol 32 (6) ◽  
pp. 1033-1041 ◽  
Author(s):  
Abdul Qadir Shah ◽  
Tasneem Gul Kazi ◽  
Hassan Imran Afridi ◽  
Mohammad Balal Arain

2015 ◽  
Vol 27 (2) ◽  
pp. 123-134 ◽  
Author(s):  
Esteban Soto ◽  
Rui Wang ◽  
Judy Wiles ◽  
Wes Baumgartner ◽  
Christopher Green ◽  
...  
Keyword(s):  

2018 ◽  
Vol 11 (3) ◽  
pp. 227-236 ◽  
Author(s):  
Pravina Jeevanaraj ◽  
Zailina Hashim ◽  
Saliza Mohd Elias ◽  
Ahmad Zaharin Aris

Author(s):  
R. D. Heidenreich

This program has been organized by the EMSA to commensurate the 50th anniversary of the experimental verification of the wave nature of the electron. Davisson and Germer in the U.S. and Thomson and Reid in Britian accomplished this at about the same time. Their findings were published in Nature in 1927 by mutual agreement since their independent efforts had led to the same conclusion at about the same time. In 1937 Davisson and Thomson shared the Nobel Prize in physics for demonstrating the wave nature of the electron deduced in 1924 by Louis de Broglie.The Davisson experiments (1921-1927) were concerned with the angular distribution of secondary electron emission from nickel surfaces produced by 150 volt primary electrons. The motivation was the effect of secondary emission on the characteristics of vacuum tubes but significant deviations from the results expected for a corpuscular electron led to a diffraction interpretation suggested by Elasser in 1925.


Author(s):  
Eugene J. Amaral

Examination of sand grain surfaces from early Paleozoic sandstones by electron microscopy reveals a variety of secondary effects caused by rock-forming processes after final deposition of the sand. Detailed studies were conducted on both coarse (≥0.71mm) and fine (=0.25mm) fractions of St. Peter Sandstone, a widespread sand deposit underlying much of the U.S. Central Interior and used in the glass industry because of its remarkably high silica purity.The very friable sandstone was disaggregated and sieved to obtain the two size fractions, and then cleaned by boiling in HCl to remove any iron impurities and rinsed in distilled water. The sand grains were then partially embedded by sprinkling them onto a glass slide coated with a thin tacky layer of latex. Direct platinum shadowed carbon replicas were made of the exposed sand grain surfaces, and were separated by dissolution of the silica in HF acid.


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