Causes of the Embryonic Malposition Head-Under-Left-Wing

Malposition of the pacemaker lead in the left ventricle.

A Rare Cause of Cardiac Tamponade: Left Ventricular Pacemaker Malposition

The malpositioning of a pacemaker lead is an uncommon and under-reported complication of pacemaker/Automated Implantable Cardioverter-Defibrillator (AICD) placement. It can be associated with complications such as pericardial effusions and tamponade. We describe a case of an elderly woman who developed cardiac tamponade after inadvertent placement of a permanent pacing lead in the left ventricl...

Finite element modeling of the human head under baton impact

Purpose: This research will try to predict damage probability and calculate the main stress resulted from baton impacts by finite element (FE) modeling of the human head considering skull texture, brain and cerebrospinal fluid.Materials and Methods: A three dimensional FE model of the skull-brain complex was constructed for simulating the baton impact. The FE analysis was carried out using ANSY...

Right-Wing Politicians Prefer the Emotional Left

Physiological research suggests that social attitudes, such as political beliefs, may be partly hard-wired in the brain. Conservatives have heightened sensitivity for detecting emotional faces and use emotion more effectively when campaigning. As the left face displays emotion more prominently, we examined 1538 official photographs of conservative and liberal politicians from Australia, Canada,...

Cerberus regulates left–right asymmetry of the embryonic head and heart

BACKGROUND Most of the molecules known to regulate left-right asymmetry in vertebrate embryos are expressed on the left side of the future trunk region of the embryo. Members of the protein family comprising Cerberus and the putative tumour suppressor Dan have not before been implicated in left-right asymmetry. In Xenopus, these proteins have been shown to antagonise members of the transforming...