Oxygen saturation in healthy-term neonates at high altitude: A multisite prospective study.

Objectives: To determine oxygen saturation (SpO) values and their variability in healthy-term neonates at high altitude.

Methods: In a prospective multisite, non-randomized blinded study, we performed SpO measurements in healthy neonates admitted to postnatal wards and followed up in Public Health Nurse Clinics (PHNC) in Calgary, Alberta, Canada. We recruited healthy-term neonates (≥37 weeks) between 6 and 24 h of age.

The Alopecia Areata Severity and Morbidity Index (ASAMI) Study: Results From a Global Expert Consensus Exercise on Determinants of Alopecia Areata Severity.

Importance: Current measures of alopecia areata (AA) severity, such as the Severity of Alopecia Tool score, do not adequately capture overall disease impact.

Objective: To explore factors associated with AA severity beyond scalp hair loss, and to support the development of the Alopecia Areata Severity and Morbidity Index (ASAMI).

Evidence Review: A total of 74 hair and scalp disorder specialists from multiple continents were invited to participate in an eDelphi project consisting of 3 survey rounds.

Step engineering for nucleation and domain orientation control in WSe epitaxy on c-plane sapphire.

Epitaxial growth of two-dimensional transition metal dichalcogenides on sapphire has emerged as a promising route to wafer-scale single-crystal films. Steps on the sapphire act as sites for transition metal dichalcogenide nucleation and can impart a preferred domain orientation, resulting in a substantial reduction in mirror twins. Here we demonstrate control of both the nucleation site and unidirectional growth direction of WSe on c-plane sapphire by metal-organic chemical vapour deposition.

Depression, anxiety and PTSD symptoms before and during the COVID-19 pandemic in the UK.

Background: The impact of the coronavirus disease 2019 (COVID-19) pandemic on mental health is still being unravelled. It is important to identify which individuals are at greatest risk of worsening symptoms. This study aimed to examine changes in depression, anxiety and post-traumatic stress disorder (PTSD) symptoms using prospective and retrospective symptom change assessments, and to find and examine the effect of key risk factors.