Adevice made by j. j. thomson to process and detect electrons is the: magnetron geiger counter cathode-ray tube vacuum tube

I think you forgot to add the options but based on my research the correct answer is "cathode-ray tube." This is the device made by J. J. Thomson to process and detect electrons is the: magnetron Geiger counter cathode-ray tube vacuum tube. Thank you for posting your question. I hope that this answer helped you. Let me know if you need more help. 

Despite some evidence that suggest that finger ring use is associated with higher bacterial

colonization, healthcare providers continue to wear finger rings in a healthcare setting. The aim

of this systematic review was to synthesize the evidence to date regarding whether finger ring

use increases bacterial colonization of healthcare providers' hands. Articles that studied the

association finger ring use with hand hygiene and bacterial colonization were searched using

PubMed, Google Scholar, and Georgia State University's online library systems. The overall

results of this review suggest that finger ring use does increase the bacterial colonization on the

hands of HCPs but not with significant difference when compared to no finger ring use;

therefore, further research needs to be conducted to decide whether finger rings should be used in

a healthcare setting or not.