BACKGROUND This study reports the efficacy of intraoperative transesophageal echocardiography (TEE) for evaluation of high take-off coronary ostia and proximal coronary arterial flows as an alternative to preoperative coronary angiography. CASE PRESENTATION In a 65-year old male undergoing the bicuspid aortic valve (BAV) repair and the extensive remodeling of dilated sinus and tubular junctio...

New industries are created from the pioneering activities of a few firms. These firms generally face great uncertainty and risk, but also stand to benefit from early mover advantages due to the preemption of resources. Based on an empirical analysis of a diverse set of consumer and industrial innovations introduced in the US over the past 100 years, we find that entrants during the pre-firm tak...

In their unique hunting behaviour, archerfish use a complex motor decision to secure their prey: based solely on how dislodged prey initially falls, they select an adapted C-start manoeuvre that turns the fish right towards the point on the water surface where their prey will later land. Furthermore, they take off at a speed that is set so as to arrive in time. We show here that the C-start man...

Method Design: observational prospective study on consecutive patients. Participants: the first 12 female (age 13.07±2.05) patients, with idiopathic scoliosis (41.58°±14.52° Cobb), in Sforzesco brace treatment, who had orthogonal synchronous AP and LL low dose EOS x-rays examination, before treatment start (PRE), with brace (IN) and after four months of treatment at immediate brace take-off (OUT).

Dear Editor-in-Chief   Lesional histopathological features in pityriasis rosea (PR) are non-specific (1).  Our aim here is to investigate whether a histopathological take-off sign (TOS) is associated with PR.

Human error in commercial aviation has recently come again to the fore in three accidents, all within a month of one another in February and March 2009. We focus on a take-off accident in Melbourne. Various tasks involved in pre-flight cockpit preparation are crucial, but vulnerable to error, which may be caused by such phenomena as third-party interruptions in cockpit pre-flight procedures, wh...