Author Correction: Coherent spin dynamics of electrons and holes in CsPbBr3 perovskite crystals.

The original version of this Article contained an error in Fig. 2c, in which the numbers on the y-axis were given in the wrong order: '800' at the bottom through to '0' at the top. This has been corrected in both the PDF and HTML versions of the Article.

Coherent spin dynamics of electrons and holes in CsPbBr perovskite crystals.

The lead halide perovskites demonstrate huge potential for optoelectronic applications, high energy radiation detectors, light emitting devices and solar energy harvesting. Those materials exhibit strong spin-orbit coupling enabling efficient optical orientation of carrier spins in perovskite-based devices with performance controlled by a magnetic field. Here we show that elaborated time-resolved spectroscopy involving strong magnetic fields can be successfully used for perovskites.

Assessment of knowledge and practices about breastfeeding and weaning among working and non-working mothers.

Objective: To assess the knowledge and practices of working and non-working mothers regarding breastfeeding and weaning.

Methods: This cross-sectional study involving working and non-working mothers was conducted from May 2015 to May 2016 at different hospitals of Karachi. Data was collected from women who had at least one child aged below 5 years and who had previously breastfed their child.

Misinterpretation Rates of High-Grade Squamous Intraepithelial Lesion in the College of American Pathologists Gynecologic PAP Education and PAP Proficiency Test Program.

Context .- Misinterpretation of high-grade squamous intraepithelial lesion (HSIL) is an important problem in daily practice and in the College of American Pathologists (CAP) PAP Proficiency Test (PAP-PT). Objective .

Human Papillomavirus Genotyping Testing Practice in 2014: Results of a College of American Pathologists National Survey.

Context: - College of American Pathologists (CAP) surveys are used to establish national benchmarks for laboratories.

Objective: - To investigate human papillomavirus (HPV) genotyping testing practice patterns in laboratories in 2014.

Design: - Data were analyzed from the CAP HPV Genotyping Practices Supplemental Questionnaire distributed to 749 laboratories participating in the CAP Human Papillomavirus (High Risk) for Cytology Program.

Application of a utility analysis to evaluate a novel assessment tool for clinically oriented physiology and pharmacology.

Multiple-choice questions are a gold-standard tool in medical school for assessment of knowledge and are the mainstay of licensing examinations. However, multiple-choice questions items can be criticized for lacking the ability to test higher-order learning or integrative thinking across multiple disciplines. Our objective was to develop a novel assessment that would address understanding of pathophysiology and pharmacology, evaluate learning at the levels of application, evaluation and synthesis, and allow students to demonstrate clinical reasoning.