منابع مشابه
O ct 2 00 6 Search for β + EC and ECEC processes in 74
For the first time, limits on double-beta processes in 74 Se have been obtained using a 400 cm 3 HPGe detector and an external source consisting of natural selenium powder. At a confidence level of 90%, they are 1.9 × 10 18 y for the β + EC(0ν + 2ν) transition to the ground state, 7.7 × 10 18 y for the ECEC(2ν) transition to the 2 + 1 excited state in 74 Ge (595.8 keV), 1.1 × 10 19 y for the EC...
متن کامل/ 06 10 04 6 v 3 2 5 O ct 2 00 6 Search for β + EC and ECEC processes in 74
For the first time, limits on double-beta processes in 74 Se have been obtained using a 400 cm 3 HPGe detector and an external source consisting of natural selenium powder. At a confidence level of 90%, they are 1.9 × 10 18 y for the β + EC(0ν + 2ν) transition to the ground state, 7.7 × 10 18 y for the ECEC(2ν) transition to the 2 + 1 excited state in 74 Ge (595.8 keV), 1.1 × 10 19 y for the EC...
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In two experiments, subjects searched fourand eight-letter arrays for the presence of a T or an F. The position of the target was indicated by a bar marker presented at one of seven stimulus onset asynchronies (SOA'S); — 100, — 25, 50, 125, 200, 275, or 350 msec. In Experiment 1, SOA conditions were blocked; in Experiment n, SOA conditions varied randomly from trial to trial. In both experiment...
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A fundamental distinction in tasks of memory search is whether items receive varied mappings (targets and distractors switch roles across trials) or consistent mappings (targets and distractors never switch roles). The type of mapping often produces markedly different performance patterns, but formal memory-based models that account quantitatively for detailed aspects of the results have not ye...
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Prior research has provided conflicting arguments and evidence about whether people who are outsiders or insiders relative to a knowledge domain are more likely to demonstrate scientific creativity in that particular domain. We propose that the nature of the relationship between creativity and the distance of an individual's expertise from a knowledge domain depends on his or her cognitive proc...
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ژورنال
عنوان ژورنال: Physical Review C
سال: 2009
ISSN: 0556-2813,1089-490X
DOI: 10.1103/physrevc.80.035501