Canopy complexity drives positive effects of tree diversity on productivity in two tree diversity experiments.

Forest canopy complexity (i.e., the three-dimensional structure of the canopy) is often associated with increased species diversity as well as high primary productivity across natural forests.

Patient, Caregiver, and Provider Perspectives on Improving Provider-Patient Interactions in Hemodialysis: A Qualitative Study.

Background: Improving interactions between people receiving hemodialysis and health care providers of facility-based hemodialysis care is a top priority for patients, caregivers, and health care providers.

Objective: To identify challenges for high-quality clinical interactions in facility-based hemodialysis care as well as potential solutions.

Design: Multicentre qualitative study using focus groups and semi-structured interviews to elicit the perspectives of patients, caregivers, and health care providers.

Retraction of "Home visiting impacts during the pandemic: Evidence from a randomized controlled trial of Child First" by Xia et al. (2023).

Reports the retraction of "Home visiting impacts during the pandemic: Evidence from a randomized controlled trial of child first" by Samantha Xia, Mervett Hefyan, Meghan P. McCormick, Maya Goldberg, Emily Swinth and Sharon Huang (, 2023[Aug], Vol 37[5], 569-580). This article is being retracted at the request of the publisher, and the editor and all authors of the original article consented.

Developing homogeneous first row early transition metal catalysts for the oxygen reduction reaction.

The oxygen reduction reaction (ORR) remains an important fixture in biological and synthetic systems for energy conversion and chemical functionalization. Late transition metals continue to dominate in the development of new catalyst systems, inspired by well-characterized metallocofactors and prior successes. By comparison, metals to the left of Fe on the periodic table are relatively understudied for the ORR.