Now showing items 21-30 of 38
The effect of polymyxin on plant roots
(Elsevier, 1955-10)
Root growth of young seedlings of barley and other species was substantially inhibited when placed in 5-10 p.p.m. solutions of the antibiotic, polymyxin B. The inhibiting effect was suppressed by simultaneous presentation ...
North American blastomycosis
(Elsevier, 1957-04)
North American blastomycosis (Gilchrist's disease) in a granulomatous, infectious disease caused by the fungus, Blastomyces dermatitidis (Gilchrist and Stokes, 1898). The malady, in its cutaneous form, was first described ...
Selection rules for the vibrational spectra of high polymers
(Elsevier, 1957)
With the aid of the Born cyclic postulate, the selection rules for the vibrational modes of a crystalline polymer and an oriented infinite chain-molecule have been discussed. The necessary conditions for the modes to be ...
The Breeding System and Distribution of Tetrahymena pyriformis. *
(Blackwell Publishing Ltd, 1955-11)
Seven hundred twenty samples of water from 46 states and the province of Ontario, Canada, were collected and examined for Tetrahymena pyriformis. Thirty-four hundred clonal cultures of the ciliate were isolated from the ...
Genetic Studies of the Serine Mutant in Variety Nine of Tetrahymena pyriformis *
(Blackwell Publishing Ltd, 1958-11)
Crosses between serine requiring and non-requiring clones from natural habitats give rise to progeny that are numerically equally distributed between the two categories. Most of the progeny from crosses between two serine ...
Rotation spectrum of methyl alcohol
(Elsevier, 1959)
The rotation spectrum of methanol vapor has been measured from 50 to 457 cm-1. Combining these data with the work of Borden and Barker provides an accurate map of the spectrum to 625 cm-1 together with some provisional ...
The Use of Tetrahymena to Evaluate the Effects of Gamma Radiation on Essential Nutrilites *
(Blackwell Publishing Ltd, 1954-11)
The Induction of Haploidy in Tetrahymena pyriformis Following X-irradiation. 1
(Blackwell Publishing Ltd, 1956-11)
Vegetative clones of Tetrahymena pyriformis , variety 2, mating type II, were the recipients of various dosages of X-rays from 10,000 to 400,000r. One clone from the 400,000 level (UM7X), when mated with non-irradiated ...
The Raman spectra of four isotopic varieties of diborane in the gas phase
(Elsevier, 1958-02)
Raman spectra of the four isotopic species, 11B2H6, 11B2D6, 10B2H6, 10B2D6, in the gas phase have been obtained and interpreted in terms of the D2h bridge model. The results are in agreement with previous interpretations ...
Electric field induced vibration rotation spectrum of H2 and D2
(Elsevier, 1959)
Electric field induced absorption has been observed for some 8 vibration-rotation transitions of H2 and for 7 of D2. An alternating electric field was used to modulate the transmitted intensity. Percentage absorptions as ...