Showing papers by "University of Coimbra published in 1971"

TL;DR: Proton chemical shifts for benzalaniline and some p, p derivatives in dilute solutions in cyclohexane were obtained and compared with those for the corresponding parent benzaldehydes and anilines.

TL;DR: In this article, the Gaussian overlap approximation is applied to Lipkin's solvable model, both for a weak and for a strong interaction, in order to obtain insight on the conditions for the validity of that approximation.

TL;DR: In this paper, the detection of the light pulses from a xenon counter gives a resolution of 11.2% for 5.9 keV and this value can be further improved.

TL;DR: In this paper, a comparison of peak shifts with counting rate for light and charge pulses from a proportional scintillation counter with a Xe-1.0% N2 mixture, under X-ray bombardment was made.

TL;DR: In this article, the authors show that the sarcolemma tube of a rabbit skeletal muscle exhibits a predominantly radial contraction which can be induced by ATP, Zn2+, and Cd2+ and to a smaller extent by ADP, SCN−, Ca2+, and Mg2+.

TL;DR: In this paper, a study of the proton chemical shifts of triphenyl-S -triazine (I) and tri-2-pyridyl- S -Triazine (II) has shown that the latter is effectively more nearly planar than the former.