Constraints on Ultrahigh-Energy Cosmic-Ray Sources from a Search for Neutrinos above 10 PeV with IceCube.

We report constraints on the sources of ultrahigh-energy cosmic rays (UHECRs) above 10^{9}  GeV, based on an analysis of seven years of IceCube data. This analysis efficiently selects very high- energy neutrino-induced events which have deposited energies from 5×10^{5}  GeV to above 10^{11}  GeV. Two neutrino-induced events with an estimated deposited energy of (2.

Evidence for Astrophysical Muon Neutrinos from the Northern Sky with IceCube.

Results from the IceCube Neutrino Observatory have recently provided compelling evidence for the existence of a high energy astrophysical neutrino flux utilizing a dominantly Southern Hemisphere data set consisting primarily of ν(e) and ν(τ) charged-current and neutral-current (cascade) neutrino interactions. In the analysis presented here, a data sample of approximately 35,000 muon neutrinos from the Northern sky is extracted from data taken during 659.5 days of live time recorded between May 2010 and May 2012.

Master's programs preparing nurse educators: what is the current state of affairs?

Master's programs to prepare nurse educators have dramatically increased and are being transformed with the advent of the doctorate in nursing practice. In the absence of standards, questions arise regarding program design and curriculum models. To assess this issue, the authors discuss their review of Web sites for 198 nurse educator programs and describe curricular patterns and trends.

Using the Cancer Rehabilitation Questionnaire in patients with colorectal cancer.

This article describes the development and testing of the Cancer Rehabilitation Questionnaire (CRQ) in patients with colorectal cancer. A descriptive, correlational survey was conducted in a sample of patients with colon or rectal cancer who received care at an outpatient cancer clinic at a large, northeastern U.S.

Rural and urban physicians' perceptions regarding the role and practice of the nurse practitioner, physician assistant, and certified nurse midwife.

Context: There is a dearth of literature citing the differences in rural and urban physicians' perceptions of the role and practice of nurse practitioners, physician assistants, and certified nurse midwives (nonphysician providers).

Purpose: The purpose of this study was to investigate and compare differences, if any, between rural and urban primary care physicians' perceptions of the role and practice of nonphysician providers.

Results: Despite a 15.