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The pattern of growth and translocation of photosynthate in a tundra moss, Polytrichum alpinum
1 January, 1974
Green aboveground shoots of the moss Polytrichum alpinum Hedw., growing on the tundra at Point Barrow, Alaska, were exposed to 14CO2 in the field. Autoradiography and subsequent counting revealed preferential…Thyroid hormone responses to prolonged cold exposure in man
1 January, 1974
1. Four men, of ages varying from 23 to 28 years, living at Halley Bay, Antarctica (75° 31′ S, 26° 39′ W), were exposed to a mean air temperature of…Read more on Thyroid hormone responses to prolonged cold exposure in man
The persistence of mycoplasmas in the urogenital tract of men in the Antarctic
1 January, 1974
A series of meatal swabs, taken from 17 men over a period of 17 months during their tour at an Antarctic base was examined for mycoplasmas. The number of organisms…Read more on The persistence of mycoplasmas in the urogenital tract of men in the Antarctic
The helminth parasites of the sheathbill, Chionis alba (Gmelin), and the diving petrels, Pelecanoides georgicus (Murphy and Harper) and P. urinatrix (Gmelin), at Bird Island, South Georgia
1 January, 1974
Twelve sheathbills, Chionis alba, 12 South Georgian diving petrels, Pelecanoides georgicus, and 5 common diving petrels, P. urinatrix, collected at Bird Island, South Georgia, were examined for helminth parasites. These…A simple model of the vertical distribution of electron concentration in the ionosphere
1 January, 1973
An idealized model of the vertical distribution of the electron concentration in the E- and F-regions of the ionosphere is developed in which the model parameters are given by simple…Read more on A simple model of the vertical distribution of electron concentration in the ionosphere
Deep-water mosses in Antarctic lakes
1 January, 1973
Mosses are generally considered to be land plants although a few species are found growing submerged in streams and shallow areas of lakes. But there is now increasing evidence that…Estimates of lichen growth rates in the maritime Antarctic
1 January, 1973
Using growth rates estimated from lichens growing on introduced substrata on Signy Island, South Orkney Islands (lat. 61 °S., long. 45 °W.), the two most recent moraines of a glacier…Read more on Estimates of lichen growth rates in the maritime Antarctic
Effects of a sucrose-free diet on the serum-lipid levels of men in Antarctica
1 January, 1973
Eighteen healthy young men on an Antarctic base were observed for 10 months. For a baseline period of 4 weeks they received a normal diet, then they were put on…Read more on Effects of a sucrose-free diet on the serum-lipid levels of men in Antarctica