Retrospectroscope

Gabriela Mistral

Gabriela Mistral, beyond her literary and political activities, was a born teacher, and we owe her much for this. The objective of this article is to highlight this aspect of her life and show how her generous and loving spirit brought light to so many.

Sinoatrial and Atrioventricular Blocks

Expériences doivent autant que possible être instituées sur des animaux inférieures.
Le plus faible le développement d’un organisme, le plus variété dans les unités plus petites, de sorte que, à un moment donné, elles vivre de façon autonome.
[Experiments must, whenever possible, be carried out

Editor's Pick

Cardiac Pacemakers

The Gulf of Naples and its surrounding area have served as a beautiful, historic, and romantic attraction for centuries, although the site was seriously damaged by the tragic eruption of Mount Vesuvius in 79 A.D. that led to the destruction of the Roman cities of Pompeii and Herculaneum plus several other nearby settlements.

Lamarck, Darwin, Wallace, and Ameghino

The universe is the most fundamental wonder: we, as humans, face it every day, contemplate it in endless amazement, question it in our search for answers. And long ago, at a particular moment in a tiny piece of that great wonder, a second wonder, perhaps deeper in reach, emerged: life. Then, slowly, life evolved to contain within it a third wonder, possibly greater in some respects than the universe itself: the human mind.