Sub-Nanometer Interfacial Oxides on Highly Oriented Pyrolytic Graphite and Carbon Nanotubes Enabled by Lateral Oxide Growth.

A new generation of compact and high-speed electronic devices, based on carbon, would be enabled through the development of robust gate oxides with sub-nanometer effective oxide thickness (EOT) on carbon nanotubes or graphene nanoribbons. However, to date, the lack of dangling bonds on sp oriented graphene sheets has limited the high precursor nucleation density enabling atomic layer deposition of sub-1 nm EOT gate oxides. It is shown here that by deploying a low-temperature AlO (LT AlO) process, involving atomic layer deposition (ALD) of AlO at 50 °C with a chemical vapor deposition (CVD) component, a high nucleation density layer can be formed, which templates the growth of a high- dielectric, such as HfO.

Obstetric Inpatient and Ultrasound Clinical Personnel Absences during the COVID-19 Pandemic in New York City.

Objective: To review obstetric personnel absences at a hospital during the initial peak of coronavirus disease 2019 (COVID-19) infection risk in New York City from March 25 to April 21, 2020.

Study Design: This retrospective study evaluated absences at Morgan Stanley Children's Hospital. Clinical absences for (1) Columbia University ultrasonographers, (2) inpatient nurses, (3) labor and delivery operating room (OR) technicians, (4) inpatient obstetric nurse assistants, and (5) attending physicians providing inpatient obstetric services were analyzed.

Childhood neurodevelopment after spontaneous versus indicated preterm birth.

Background: Preterm birth is the leading cause of neonatal morbidity and mortality. Individuals who survive preterm birth are at a higher risk for many long-term adverse effects, including neurodevelopmental deficits. There are many well-established risk factors for worse neurologic outcomes spanning the prenatal and postnatal periods; however, investigators have yet to assess whether the cause of preterm birth has an impact on neurodevelopment.

Preparation and redeployment of house staff during a pandemic.

The COVID-19 pandemic created unique issues for house staff physicians. Gaps in surgical experience due to canceled cases, a focus on obstetrics over gynecology during the spring months when many senior residents and fellows are completing their case requirements and the stress of working with patients infected with a highly communicable disease all contributed to an unprecedented challenge facing residency and fellowship programs. Our objective is to describe how the Obstetrics and Gynecology residency and fellowship programs at Columbia University Irving Medical Center adapted to their changing landscape, redeployed their residents and fellows while assuring ongoing trainee education, wellness and scholarship during the peak of the pandemic.

Primed for a pandemic: Implementation of telehealth outpatient monitoring for women with mild COVID-19.

Close observation and rapid escalation of care is essential for obstetric patients with COVID-19. The pandemic forced widespread conversion of in-person to virtual care delivery and telehealth was primed to enable outpatient surveillance of infected patients. We describe the experience and lessons learned while designing and implementing a virtual telemonitoring COVID-19 clinic for obstetric patients.