Extended investigation of superdeformed bands in 151,152^{151,152}Tb nuclei

A detailed study of known and new SD bands in Tb isotopes has been performed with the use of the EUROBALL IV -ray array. The high-statistics data set has allowed for the extension of known SD bands at low and high spins by new -ray transitions. These transitions, as it turns out, correspond to the rotational frequencies where the principal superdeformed gaps (Z=66,N=86) close giving rise to up- or down-bending mechanisms. This enables to attribute the underlying theoretical configurations with much higher confidence as compared to the previous identifications. Five new SD bands have been discovered, three of them assigned to the 152Tb and the two others to the 151Tb nuclei. Nuclear mean-field calculations have been used to interpret the structure of known SD bands as well as of the new ones in terms of nucleonic configurations

Decay-out of 151^{151}Tb Yrast superdeformed band and shape coexistence

Matière NucléaireLinking transitions between the superdeformed (SD) and the normal deformed (ND) wells have been searched in $^{151}$Tb nucleus. Two experiments of 5 and 17 days have been performed with EUROBALL IV. Transitions of 2818 keV and 3748 keV with intensities of about 1 % relative to the yrast SD band have been observed. Their decay-out properties are discussed in the text. In addition the eight known SD bands have been extended towards higher rotational frequencies where orbital crossings are observed. For the first time, weakly populated collective ND structures, likely triaxial, similar to the ones recently identified in $^{152}$Dy, $^{153}$Ho and ${155}$Er nuclei have been observed in ${151}$Tb. The SD and ND structures are interpreted in the frame of Woods-Saxon theoretical calculations

The prevalence and correlates of sexual risk behaviors and sexually transmitted infections in borderline personality disorder outpatients

This study examined the prevalence and correlates of sexual risk behaviors and sexually transmitted infections (STIs) in two samples of outpatients with borderline personality disorder (BPD), including suicidal BPD women (n = 99) and opiate-dependent BPD men and women (n = 125). High rates of sexual risk behaviors and STIs were found, particularly in the opiate-dependent BPD sample. Compared with suicidal BPD outpatients, opiate-dependent BPD outpatients reported higher rates of past-year sexual activity, commercial sex work, and lifetime hepatitis, as well as a greater number of lifetime sex partners. Substance use and demographic characteristics (age, sex, and marital status) were associated with higher rates of sexual risk behaviors and/or STIs, whereas cognitive-behavioral factors and indicators of psychiatric impairment were not. These findings point to a clear need for interventions aimed at decreasing sexual risk behaviors among individuals with BPD

Extended investigation of superdeformed bands in <SUP>151,152</SUP>Tb nuclei

A detailed study of known and new SD bands in Tb isotopes has been performed with the use of the EUROBALL IV gamma-ray array. The high-statistics data set has allowed for the extension of known SD bands at low and high spins by new gamma-ray transitions. These transitions, as it turns out, correspond to the rotational frequencies where the principal superdeformed gaps (Z=66,N=86) close giving rise to up- or down-bending mechanisms. This enables to attribute the underlying theoretical configurations with much higher confidence as compared to the previous identifications. Five new SD bands have been discovered, three of them assigned to the 152Tb and the two others to the 151Tb nuclei. Nuclear mean-field calculations have been used to interpret the structure of known SD bands as well as of the new ones in terms of nucleonic configurations.</p