A Combinatorial Formula for Macdonald Polynomials

We prove a combinatorial formula for the Macdonald polynomial H_mu(x;q,t) which had been conjectured by the first author. Corollaries to our main theorem include the expansion of H_mu(x;q,t) in terms of LLT polynomials, a new proof of the charge formula of Lascoux and Schutzenberger for Hall-Littlewood polynomials, a new proof of Knop and Sahi's combinatorial formula for Jack polynomials as well as a lifting of their formula to integral form Macdonald polynomials, and a new combinatorial rule for the Kostka-Macdonald coefficients K_{lambda,mu}(q,t) in the case that mu is a partition with parts less than or equal to 2.Comment: 29 page

Parents’ Perspectives on Shared Decision Making for Children With Solid Organ Transplants

Introduction The Institute of Medicine prioritizes active family and clinician participation in treatment decisions, known as shared decision making (SDM). In this article we report the decision-making experiences for parents of children who had a solid organ transplant. Method We performed a prospective longitudinal mixed methods study at five major U.S. children\u27s medical centers. Qualitative interview data were obtained at 3 weeks, 3 months, and 6 months after hospital discharge following the child\u27s transplant. Results Forty-eight parents participated in the study. Three themes were identified: (a) Parents expect to participate in SDM; (b) parents seek information to support their participation in SDM; and (c) attributes of providers\u27 professional practice facilitates SDM. SDM was facilitated when providers were knowledgeable, transparent, approachable, accessible, dependable, and supportive. Conclusions Parents expect to participate in SDM with their transplant team. Health care providers can intentionally use the six key attributes to engage parents in SDM. The results provide a framework to consider enhancing SDM in other chronic illness populations

The Influence of Religiosity, Gender, and Language Preference Acculturation on Sexual Activity Among Latino/a Adolescents

The purpose of this study was to determine the main and interactive effects of religiosity, gender, and language preference acculturation on sexual activity among 570 Latino/a adolescents from the 2002 National Survey of Family Growth. Results indicated that adolescents who viewed religion as very important, had frequent church attendance, and had more traditional attitudes on sexuality were less likely ever to have sex compared with adolescents who were less religious. Those with frequent church attendance and high traditional attitudes had fewer lifetime and recent sex partners. Unassimilated religious youth were less likely ever to have sex, had fewer lifetime and recent sexual partners, and a later age of sexual debut. Females were less likely to have had sex, had fewer recent and lifetime partners, and had a later age of coital debut than males. Religiosity had a healthy dampening of sexual activity among Latino/a adolescents and, in particular, among those who were less assimilated

Pediatric Nurses\u27 Perspectives on Medication Teaching in a Children\u27s Hospital

Purpose To explore inpatient pediatric nurses\u27 current experiences and perspectives on medication teaching. Design and Methods A descriptive qualitative study was conducted at a Midwest pediatric hospital. Using convenience sampling, 26 nurses participated in six focus groups. Data were analyzed in an iterative group coding process. Results Three themes emerged. 1) Medication teaching is an opportunity. 2) Medication teaching is challenging. Nurses experienced structural and process challenges to deliver medication teaching. Structural challenges included the physical hospital environment, electronic health record, and institutional discharge workflow while process challenges included knowledge, relationships and interactions with caregivers, and available resources. 3) Medication teaching is amenable to improvement. Conclusion Effective medication teaching with caregivers is critical to ensure safe, quality care for children after discharge. Nursing teaching practices have not changed, despite advances in technology and major changes in hospital care. Nurses face many challenges to conduct effective medication teaching. Improving current teaching practices is imperative in order to provide the best and safest care. Practice Implications This study generated knowledge regarding pediatric nurses\u27 teaching practices, values and beliefs that influence teaching, barriers, and ideas for how to improve medication teaching. Results will guide the development of targeted interventions to promote successful medication teaching practices

Brachiopod genus Enteletes in Pennsylvanian deposits of Kansas

30 p., 8 pl., 14 fig.http://paleo.ku.edu/contributions.htm