-PCL shape memory polymer (SMP) scaffolds with tunable transition temperatures for enhanced utility.

Thermoresponsive shape memory polymers (SMPs) prepared from UV-curable poly(ε-caprolactone) (PCL) macromers have the potential to create self-fitting bone scaffolds, self-expanding vaginal stents, and other shape-shifting devices. To ensure tissue safety during deployment, the shape actuation temperature (, the melt transition temperature or of PCL) must be reduced from ∼55 °C that is observed for scaffolds prepared from -PCL-DA ( ∼ 10 kg mol). Moreover, increasing the rate of biodegradation would be advantageous, facilitating bone tissue healing and potentially eliminating the need for stent retrieval.

Thylakoid localized bestrophin-like proteins are essential for the CO concentrating mechanism of .

The green alga possesses a CO concentrating mechanism (CCM) that helps in successful acclimation to low CO conditions. Current models of the CCM postulate that a series of ion transporters bring HCO from outside the cell to the thylakoid lumen, where the carbonic anhydrase 3 (CAH3) dehydrates accumulated HCO to CO, raising the CO concentration for Ribulose bisphosphate carboxylase/oxygenase (Rubisco). Previously, HCO transporters have been identified at both the plasma membrane and the chloroplast envelope, but the transporter thought to be on the thylakoid membrane has not been identified.

Inpatient preanalytic process improvements.

Context: Phlebotomy services are a common target for preanalytic improvements. Many new, quality engineering tools have recently been applied in clinical laboratories. However, data on relatively few projects have been published.

Disposition of emergency department patients with psychiatric comorbidity: results from the 2004 National Hospital Ambulatory Medical Care Survey.

Background: Few emergency department (ED) studies have examined how psychiatric comorbidity relates to hospitalisation decisions.

Methods: We assessed the relationship of psychiatric comorbidity to hospitalisation decisions among ED patients in the 2004 National Hospital Ambulatory Medical Care Survey.

Results: Patients with psychiatric comorbidity were five times more likely to be hospitalised than patients with a single psychiatric diagnosis.

Pacing in the middle cardiac vein in a patient with tricuspid prosthesis.

A man with acute endocarditis developed complete heart block several days after the tricuspid and aortic valve replacement. Several weeks after implantation, his epimyocardial pacing leads developed a high threshold and failed to capture the ventricle at the maximal pulse width and output of the pacemaker. An angled-tip lead was placed in the middle cardiac vein for ventricular pacing.