Ego4D: Around the World in 3,000 Hours of Egocentric Video.

We introduce Ego4D, a massive-scale egocentric video dataset and benchmark suite. It offers 3,670 hours of daily-life activity video spanning hundreds of scenarios (household, outdoor, workplace, leisure, etc.) captured by 931 unique camera wearers from 74 worldwide locations and 9 different countries.

Modeling CO Adsorption in a Thin Discrete Packing.

Local dynamics of CO adsorption in a discrete packing contained in a thin tube was assessed by 3D modeling. Thin tube packed bed adsorbers are currently used over tube structures in thermochemical energy storage systems and atmospheric revitalization of confined spaces. Driven by the interplay between key factors such as the exothermicity and the fluid flow, the advective transport was found less effective than the diffusive one on the breakthrough trends of CO which displayed significant concentration gradients at both inter- and intraparticle scales.

Investigating Direct and Indirect Genetic Effects in Attention-Deficit/Hyperactivity Disorder Using Parent-Offspring Trios.

Background: Attention-deficit/hyperactivity disorder (ADHD) is highly heritable, but little is known about the relative effects of transmitted (i.e., direct) and nontransmitted (i.

Thoracic ultrasonic narration of Covid-19 pneumonia.

Covid-19 (SARS-CoV-2) is a new coronavirus. Since the declaration of a global pandemic, a lot has been learnt about its spread, disease pattern, diagnosis and management. The lungs remain the prime organs to incur serious insult and when lung complications embark, significant morbidity and mortality is observed.

Routine use of both mammography and MRI surveillance in patients with previous 'mammogram occult' breast cancer: experience from a tertiary centre.

Background: To evaluate the role of combined MRI and mammogram follow-up in patients with previous 'mammographically occult' breast cancer.

Methods: Between 2011 and 2016, examinations of all patients undergoing routine surveillance following previous 'mammogram occult' breast cancer were evaluated. Patients had both MRI and mammograms on the same day with an interval of 12-18 months between consecutive pairs.