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A Covello

Publications and source records attributed to A Covello.

11 recordsLinked to original sources
PubMed2002

Coulomb excitation of radioactive 132,134,136Te beams and the low B(E2) of 136Te.

The B(E2;0(+)-->2+) values for the first 2+ excited states of neutron-rich 132,134,136Te have been measured using Coulomb excitation of radioactive ion beams. The B(E2) values obtained for 132,134Te are in excellent agreement with expectations based on the systematics of heavy stable Te isotopes, while that for 136Te is unexpectedly small. These results are discussed in terms of proton-neutron configuration mixing and shell-model calculations using realistic effective interactions.

Journal Article↗
PubMed1984

[Not Available].

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History, Modern 1601-↗
PubMed1975

[A telemetric study of central rhythms in children].

Data concerning central (mu) rhythms in children are reported, these rhythms being studied by means of prolonged telemetric recording which makes it possible to study various experimental situations. Several different patterns of mu rhythm were observed in every subject, depending on the experimental situation. The level and the quality of attention on the one hand, immobility on the other, were found to be the two main factors which facilitated the occurrence or the maintenance of mu rhythms. The induction of movement, especially of the hand, was the major cause of blocking pre-existing mu rhythms, but attention alone was also able to provoke the same reaction. These data were compared with those obtained in animals by direct recording from the cortical somaesthetic areas. The respective roles of vigilance, attention and movement are discussed.

Attention↗