Phase diagram and dependence of the critical temperature T_c on the pressure for Tl_{0.5}Pb_{0.5}Sr_2Ca_{1-x}Y_xCu_2)_7

Using a mean-field BCS-like approach on the bidimensional extended Hubbard Hamiltonian we calculate the superconducting transition temperature Tc as a function of the hole content nh, for the d-wave and extended-s wave gap symmetries. To describe the pressure effect on Tc we assume it induces a change in the magnitude V of the attractive superconductor potential. This assumption yields an explanation for the intrinsic term, and together with the well known change in nh, we set the critical temperature as Tc=Tc(nh(P),V(P)). With this we obtain a general expansion of Tc in terms of the pressure P and the hole content nh. We apply this expansion to the Tl_{0.5}Pb_{0.5}Sr_2Ca_{1-x}Y_xCu_2)_7 system

Screening for Postpartum Depression at Well-Baby Visits

Objective: To assess the prevalence of postpartum depression among mothers who attend first-year well-baby visits. Methods: A convenience sample of 33 women was screened during first year well-baby visits using the Edinburgh Postpartum Depression Scale (EPDS) at three pediatric offices in Northern California. Measures included demographic data, history of depression, tobacco use, strength of support system, breast/bottle feeding, and child\u27s health. EPDS scores were collected to calculate the prevalence of postpartum depression. Results: The EPDS was administered to 33 women at first year well-baby visits. Thirty-two were completed. Sixty-six percent of women had scores \u3c 10 indicating no depression. Thirty-four percent reported scores of\u3e=l 0 during the postpartum year indicating depression. Conclusion: Any follow-up related to postpartum issues is often referred to women\u27s health, or maternity healthcare providers. This study provides another possible resource for new mothers. Screening for postpartum depression at well-baby visits using the EPDS was feasible and detected mothers with depression. Follow-up and treatment can then be addressed