Isolation and Characterization of Protein Bodies in Lupinus angustifolius.

Using Nycodenz, a novel density gradient medium, we isolated intact protein bodies from developing seeds of Lupinus angustifolius L. (cultivar Unicrop) and achieved excellent separation from the endoplasmic reticulum, mitochondria, and other organelles. The distribution of the storage protein conglutin-beta was taken as evidence that up to 96% of the protein bodies remained intact on the gradients and banded at 1.

[Danger of radiation--a realistic view].

It is evident that ionizing radiation at high doses is able to damage living organisms and may induce cancer and leukemia in man. At low doses, however, biopositive effects appear possible too, for which examples are given. The mechanism of such effects can be explained as a general stimulation of the natural immune system.

[A comparison of the readings of film- and pocket dosimetry (author's transl)].

An inquiry to compare the readings of film- and pocket dosimeters worn by the same individual at the same time showed similar results, a fact which was found to be very satisfying. Of the 2132 dosimeters compared, only 46 (2.2%) were outside the standard error of -30/+50% permitted for film dosimetry.

[Results of measurements of local doses with film-dosimeters (author's transl)].

In medical x-ray departments, industrial facilities and nuclear reactors, local radiation was measured with film dosimeters in more than 1700 different places. These were fixed over a period of about 30 days in different spots of the controlled rooms. The obtained measurements are classified into different groups.

[Radiation exposure of the dentist].

The radiation dosis per person undergoing dental treatment measured at the trunk is rather considerable, though not alarming. However, the number of people whose hands has been exposed to radiation as well as the individual extent of exposure were unexpectedly high. The radiation dosis measured at the hands was about 100 times bigger than the radiation dosis determined at the trunk for the whole body.