A study in the journal Science presents compelling new evidence that neurons in the brain's memory center, the hippocampus, ...

A brain aneurysm (also called a cerebral aneurysm or an intracranial aneurysm) is a ballooning arising from a weakened area in the wall of a blood vessel in the brain. If the brain aneurysm expands ...

In this article, we present an adaptive reinforcement learning optimal tracking control (RLOTC) algorithm for an underactuated surface vessel subject to modeling uncertainties and time-varying ...

But the moon has no such gassy shield. “The surface of the moon is continually being bombarded by micrometeorites, which ultimately degrades anything that’s left outside,” says Gregg.

Arachnoid cysts occur in one of the three layers of tissue that surround the brain and spinal cord. Most arachnoid cysts are stable and do not require treatment. They are four times more common in ...

This edition of Weather Tidbits will be discussing how atmospheric temperature profiles, and how a temperature inversion can trap pollutants near the surface. Smog is an example of these pollutants.

A three-sphere model is used to investigate the effects of inhomogeneities introduced by the scalp and the skull on the apparent location and magnitude of a current dipole representing local activity ...

For instance, surface ester bonds of poly- l -lactic acid (PLLA) scaffolds can be easily broken through alkali/acid hydrolysis. (115) Subsequent treatment with citric acid improved surface ...

Bilateral infarction in the anterior cerebral artery vascular territory is rare and usually results from rupture of an aneurysm of the anterior communicating artery. In the case of an anomaly of the ...

Iadecola, C. Regulation of the cerebral microcirculation during neural activity: is nitric oxide the missing link? Trends Neurosci. 16, 206– 214 (1993). Article CAS Google Scholar ...

The loss of the Resilience spacecraft by Ispace repeated a crash into the moon in 2023 of the company’s first robotic lunar landing mission.