Background Aortic stenosis (AS) frequently coexists with heart failure (HF), but its prevalence, prognostic impact and management across the full HF spectrum remain incompletely characterised. Methods ...

A piecewise relation, at its core, is a relation that is defined by multiple sub-relations, each applying to a certain interval of the domain. These sub-relations are essentially different equations ...

The Continuity of Government Commission was originally formed after 9/11 to address how our key institutions can reconstitute themselves after a catastrophic attack. A new version of the commission, ...

Learn to choose coordinate systems, visualize multivariable functions, and parameterize curves. You can use these live scripts as demonstrations in lectures, class activities, or interactive ...

When disaster strikes, a well-crafted business continuity plan can mean the difference between seamless recovery and prolonged disruption. Yet, many businesses unintentionally overlook critical ...

Imagine a movie character’s day going exactly as she planned: her organization systems make her space pristine, she’s on time or early for everything, her focus rivals an Olympian’s, and she adheres ...

For many Apple fans, it can be difficult to express what exactly about the ecosystem keeps us coming back. Some people will claim that it's because of the sleek designs that stand the test of time.

Background Observational studies suggest that total testosterone (TT) and sex hormone-binding globulin (SHBG) may have beneficial effects on lung function, but these findings might be spurious due to ...