Now showing items 21-25 of 25
Infrared and optical polarization of Markarian-421
Observations of the polarization of Mrk 421 in the V, J, and K bands are presented. The infrared radiation shows variable polarization with a range of at least 2-4%. The spectrum of the nonthermal source in the VJK regions ...
Effects of root-infecting fungi on structure and function of cereal roots
(Cambridge University Press, 1981)
Vegetation damage during an episode of selenium pollution
Necrotic lesions were observed on the leaves of trees and herbaceous species in the vicinity of a copper refinery. Analysis of leaf samples revealed the presence of excessive concentrations of selenium and copper. The ...
The effects of trace elements on lower plants
(Applied Science Publishers, 1981)