One step behind

One step forward

One step forwards, one step back.

One step behind to step ahead – femoral approach to stabilize and to extract functional pacing lead to regain venous access

Transvenous lead extraction can be a method to regain venous access. We present the case of a man, aged 67, with indications to upgrade an ICD to a resynchronization therapy device. Since innominate vein occlusion was diagnosed and extraction of an abandoned ventricular pacing lead did not provide lumen regain, a functional atrial lead was extracted with the femoral approach to stabilization an...

Is Japan a step behind on genome?

Shigetada Nakanishi Kim Nasmyth Roger A. Nicoll Staffan Normark Stuart L. Pimm Yeshayau Pocker Dennis A. Powers Ralph S. Quatrano Martin Raff V. Ramanathan Douglas C. Rees T. M. Rice David C. Rubie Erkki Ruoslahti Gottfried Schatz Jozef Schell Ronald H. Schwartz Terrence J. Sejnowski Ellen Solomon Thomas A. Steitz Michael P. Stryker Robert T. N. Tjian Emil R. Unanue Geerat J. Vermeij Bert Vogel...

One Observation behind Two Puzzles

In two famous and popular puzzles a participant is required to compare two numbers of which she is shown only one. We show that there is one simple principle behind these puzzles. In particular this principle sheds new light on the paradoxical nature of the first puzzle. According to this principle the ranking of several random variables must depend on at least one of them, except for the trivi...