Pediatric Primary Care Perspectives of Mental Health Services Delivery during the COVID-19 Pandemic.

Due to a national shortage of child and adolescent psychiatrists, pediatric primary care providers (PCPs) are often responsible for the screening, evaluation, and treatment of mental health disorders. COVID-19 pandemic stay-at-home orders decreased access to mental health care and increased behavioral and emotional difficulties in children and adolescents. Despite increased demand upon clinicians, little is known about mental health care delivery in the pediatric primary care setting during the pandemic.

Role of Surface Acidity in the Surface Stabilization of the High-Voltage Cathode LiNiMnCoO.

Metal oxide coatings have been reported to be an effective approach for stabilizing cathode interfaces, but the associated chemistry is unclear. In this work, thin films of TiO, ZnO, and CrO, which have different surface acidities/basicities, were used to modify the surface chemistry of LiNiMnCoO and study the acidity's role in the cathode/electrolyte interphase composition and impedance under high-voltage cycling (4.5 V Li/Li).

Resolving the Amorphous Structure of Lithium Phosphorus Oxynitride (Lipon).

Lithium phosphorus oxynitride, also known as Lipon, solid-state electrolytes are at the center of the search for solid-state Li metal batteries. Key to the performance of Lipon is a combination of high Li content, amorphous character, and the incorporation of N into the structure. Despite the material's importance, our work presents the first study to fully resolve the structure of Lipon using a combination of  ab initio molecular dynamics, density functional theory, neutron scattering, and infrared spectroscopy.