Spontaneous Resolution of Delayed Post-operative Extradural and Epicranial Pneumatocele.

Extradural and epicranial pneumatocele is a rare condition. It may complicate with CSF rhinorrhoea and meningitis which can have a fatal outcome. We present a case of delayed post-operative extradural and epicranial pneumatocele in the frontal region following primary repair of the anterior skull base for a traumatic compound craniofacial injury with CSF leakage.

Avatar-based simulation in the evaluation of diagnosis and management of mental health disorders in primary care.

Major Depressive Disorder (MDD) and Posttraumatic Stress Disorder (PTSD) are highly prevalent illnesses, but the literature suggests they are under-detected and suboptimally managed by primary care practitioners (PCPs). In this paper, we propose and use an evaluation method, using digitally simulated patients (avatars) to evaluate the diagnostic and therapeutic reasoning of PCPs and compared it to the traditional use of paper-based cases. Verbal (think-aloud) protocols were captured in the context of a diagnostic and therapeutic reasoning task.

Interaction of the Depolarization-Activated K Channel of Samanea saman with Inorganic Ions: A Patch-Clamp Study.

A depolarization-activated K(+) channel capable of carrying the large K(+) currents that flow from shrinking cells during movements of Samanea saman leaflets has been described in the plasmalemma of Samanea motor cell protoplasts (N Moran et al [1988] Plant Physiol 88:643-648). We now characterize this channel in greater detail. It is selective for K(+) over other monovalent ions, with the following order of relative permeability: K(+) > Rb(+) > Na(+) approximately Cs(+) approximately Li(+).

Light-promoted changes in apoplastic K(+) activity in the Samanea saman pulvinus, monitored with liquid membrane microelectrodes.

The movement of Samanea saman (Jacq.) Merrill leaflets is a consequence of the re-distribution of K(+) and anions between motor cells on opposite sides of the pulvinus. We used a K(+)-sensitive microelectrode to study dynamic changes in K(+) transport through motor-cell membranes during and immediately after change in illumination.

Separation and Characterization of Inositol Phospholipids from the Pulvini of Samanea saman.

To supplement current thin-layer chromatographic methods for separation and quantitation of plant phospholipids, an alternative method, high-performance liquid chromatography was developed. The major inositol-containing lipids from the pulvini of Samanea saman Merr. were identified as phosphatidylinositol, phosphatidylinositol phosphate, and phosphatidylinositol bisphosphate based on comigration with authentic standards on high-performance liquid chromatography and on thin-layer chromatography.