scholarly journals Powdered Activated Charcoal Tracing in Hand Hygiene Training and Compliance Assessment During the COVID-19 Pandemic

2021 ◽  
Vol Volume 14 ◽  
pp. 675-683
Author(s):  
Guo Feng ◽  
Han Jun ◽  
Gitonga Elaine ◽  
Shen Haitao
1969 ◽  
Vol 58 (3) ◽  
pp. 351-357
Author(s):  
H. E. Waterworth ◽  
R. H. Lawson ◽  
R. P. Kahn

A virus latent in yam species Dioscorea floribunda and D. composita (DLV) was purified by use of powdered activated charcoal and magnesium-treated bentonite to clarify extracted Dioscorea leaf sap. The virus produced a single band in sucrose-density gradients. Antisera produced in a rabbit reached a titer of 1:16,000. Purified DLV did not react with antiscra to any of 25 rod-shaped viruses. Myzus persicae (Sulzer), the green peach aphid, did not transmit DLV from infected Dioscorea plants. Seventy-four percent of the particles measured 395-445 nm. Inoculated D. floribunda seedlings showed no symptoms, but the virus was observed in dip preparations from systemically infected growth. DLV occurred in combination with a second virus that was aphid-transmissible and which incited green banding symptoms.


2007 ◽  
Vol 41 (10) ◽  
pp. 16-17
Author(s):  
SHARON WORCESTER
Keyword(s):  

2009 ◽  
Vol 2 (4) ◽  
pp. 10
Author(s):  
MIRIAM E. TUCKER

2013 ◽  
Author(s):  
Alia Ba Mohammed ◽  
Sharifah Mohidin
Keyword(s):  

2010 ◽  
Author(s):  
Anne Collins McLaughlin ◽  
Grace E. Anxieter ◽  
Amanda T. Hemmer

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