What Bergson should have said about special relativity

Two myths about special relativity

Q. Does the Lorentz transformation reduce to the Galilean transformation when the ratio v /c is small? A. No. At least two routes are available to substantiate the negative response. I will first give a direct, algebraic route and then a more sophisticated indirect route. Consider the usual pair of inertial reference frames, the primed frame moving with speed v along the x axis of the unprimed ...

What Darwin Really Said About Emotional Expressions

Emotional expressions have endured as a topic of profound scientific interest for over a century, in part due to Darwin’s classic volume, The Expression of Emotions in Man and Animals. Since its publication, there has been a strong, spirited debate over the origin, nature, and function of emotional expressions. In this article, I consider two basic questions: What did Darwin really write about ...

What every pediatrician should know about liver transplantation

Liver transplantation is the treatment of choice for children with end-stage liver disease.  Improvement in outcomes (allograft and patient survival) has led to widespread use of pediatric LT worldwide. This success is due to improvement in patient selection, transplant surgery, anesthesia/postoperative care and immunosuppression management. This review will focus on different aspects of LT whi...

Erythema nodosum :what should we consider about it?

Informed consent in cardiac resynchronization therapy: what should be said?

Cardiac resynchronization therapy (CRT) for the treatment of heart failure (HF) raises complex problems for informed consent. CRT with and without defibrillator backup has been demonstrated in clinical trials to improve symptoms from HF and decrease mortality.1–4 A CRT pacemaker (CRT-P) may improve symptoms and reduce mortality in selected patients, even without offering the specific protection...