Phys. Rev. C 102, 014602 (2020) The LUX-ZEPLIN (LZ) experiment will enable a neutrinoless double beta decay
search in parallel to the main science goal of discovering dark matter particle
...interactions. We report the expected LZ sensitivity to $^{136}$Xe neutrinoless
double beta decay, taking advantage of the significant ($>$600 kg) $^{136}$Xe
mass contained within the active volume of LZ without isotopic enrichment.
After 1000 live-days, the median exclusion sensitivity to the half-life of
$^{136}$Xe is projected to be 1.06$\times$10$^{26}$ years (90% confidence
level), similar to existing constraints. We also report the expected
sensitivity of a possible subsequent dedicated exposure using 90% enrichment
with $^{136}$Xe at 1.06$\times$10$^{27}$ years.
The LUX-ZEPLIN (LZ) experiment will enable a neutrinoless double beta decay search in parallel to the main science goal of discovering dark matter particle interactions. We report the expected LZ ...sensitivity to \(^{136}\)Xe neutrinoless double beta decay, taking advantage of the significant (\(>\)600 kg) \(^{136}\)Xe mass contained within the active volume of LZ without isotopic enrichment. After 1000 live-days, the median exclusion sensitivity to the half-life of \(^{136}\)Xe is projected to be 1.06\(\times\)10\(^{26}\) years (90% confidence level), similar to existing constraints. We also report the expected sensitivity of a possible subsequent dedicated exposure using 90% enrichment with \(^{136}\)Xe at 1.06\(\times\)10\(^{27}\) years.
Upper limb-cardiovascular syndrome Krikler, D M; Zilberg, B; Carter, A R
South African medical journal,
1969-Jul-19, Letnik:
43, Številka:
29
Journal Article
Sudden cardiac death is a common cause of mortality in patients with congestive heart failure. To determine if low-dose amiodarone could reduce sudden death among these patients, a prospective, ...placebo-controlled, double-blind pilot trial was conducted. One hundred one patients with ejection fractions less than 30%, New York Heart Association class III or IV symptoms, and frequent but asymptomatic spontaneous ventricular ectopy (Lown class II to V) were randomly assigned to treatment with low-dose amiodarone (400 mg/day for 4 weeks and then 200 mg/day) or placebo. Mean follow-up was 357 days (range 4 to 1009 days). Side effects were infrequent and there was no difference in the incidence of side effects between the treatment groups. The frequency of spontaneous ventricular ectopy in the group receiving amiodarone fell from 4992 +/- 1240 beats/24 hours at baseline to 1135 +/- 494 beats/24 hours after 1 month of treatment (p = 0.02) and remained low after 6 months, while there was no change in ventricular ectopy among the patients receiving placebo. Despite the reduction in ectopy, there was no improvement in mortality or decrease in the incidence of sudden death. One-year mortality by Kaplan-Meier analysis was 28% in the group receiving amiodarone and 19% in the group receiving placebo (p = NS). One-year mortality in patients with greater than 75% reduction in ventricular ectopy after 1 month of treatment was 31% versus 17% in patients with less than or equal to 75% ectopic suppression (p = NS).
Examined the role of biological factors (birth weight and perinatal medical complications) and psychosocial factors (maternal attitudes, paternal involvement, mother's personal state, marital ...adjustment, family relations, and socioeconomic status) in predicting long-term outcome of 90 Israeli adolescents born prematurely at very low birth weight (VLBW). As compared with 90 adolescents born full-term at normal birth weight (NBW), the VLBW children scored lower on all measures except reading comprehension. IQ, visual-motor coordination, and hyperactive behavior were predicted by both biological and psychosocial variables, visual memory by biological variables, and reading comprehension by psychosocial variables. The findings support chiefly the main effects model of developmental psychopathology (i.e., biological and psychosocial variables are additive in predicting outcomes), but also the interactional model (e.g., SES was influential in predicting visual-motor coordination and hyperactive behavior in the VLBW group but not in the NBW group).
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