Tracheostomy is a common surgical procedure, and is increasingly performed in the intensive
care unit (ICU) as opposed to the operating room. Procedural knowledge is essential and …

Introduction The performance of tracheotomy is a common procedural request by critical
care departments to the surgical services of general surgery, thoracic surgery and …

… A study of the pH along the gut axis in P. ephippiata showed regular, pronounced variation,
with values near 8 in the anterior midgut, rising to > 10 in the center of the midgut, and …

We create rapidly rotating Bose-Einstein condensates in the lowest Landau level by spinning
up the condensates to rotation rates Ω> 99% of the centrifugal limit for a harmonically …

We have developed an evaporative cooling technique that accelerates the rotation of an
ultracold R 87 b gas, confined in a static harmonic potential. As a normal gas is evaporatively …

The dynamics of two penetrating superfluids exhibit an intriguing variety of nonlinear effects.
Using two distinguishable components of a Bose-Einstein condensate, we investigate the …

A Bose-Einstein condensate (BEC) is a quantum fluid that gives rise to interesting shock-wave
nonlinear dynamics. Experiments depict a BEC that exhibits behavior similar to that of a …

We experimentally study the fluid flow induced by a broad, penetrable barrier moving through
an elongated dilute gaseous Bose-Einstein condensate. The barrier is created by a laser …

Spin-orbit-coupled ultracold atoms provide an intriguing new avenue for the study of rich
spin dynamics in superfluids. In this Rapid Communication, we observe Zitterbewegung, the …

We study the formation of large vortex aggregates in a rapidly rotating dilute-gas Bose-Einstein
condensate. When we remove atoms from the rotating condensate with a tightly focused, …