Europium doping of cadmium selenide (CdSe) quantum dots rapid microwave synthesis for optoelectronic applications.

The tunability of optical properties in inorganic semiconductor quantum dots (QDs) allows them to be exceptional candidates for multiple optical and optoelectronic applications. While QD size dictates these properties, the addition of highly luminescent rare-earth elements also affects absorption and emission properties. In this work, we were able to successfully synthesize europium-doped CdSe QDs using a one-pot microwave synthesis method.

Assessment of an improved stack sample collection system for 3H and 14C.

Lawrence Berkeley National Laboratory developed a simple, efficient, and cost-effective replacement for the traditional glass column system used to monitor H and C emissions from rooftop stacks. The primary goals in developing a replacement (the modified jar system) were to 1) maintain or improve collection efficiency while keeping leakage to less than 5%, 2) simplify the set-up process, and 3) reduce costs. Both the traditional glass column assembly and the modified jar system were operated in tandem for a 13-mo period.

Improvement of nonbullous congenital ichthyosiform erythroderma following functional endoscopic sinus surgery.

We report the case of a child with congenital nonbullous ichthyosiform erythroderma on long-term isotretinoin who developed progressively worsening ichthyosis along with recurrent bouts of sinusitis. Endoscopic sinus surgery revealed osteophytes, most likely an isotretinoin-related adverse event, and post operatively the patient's sinus disease and skin disease both dramatically improved. This case represents the first report, to our knowledge, of ichthyosis improving after endoscopic sinus surgery.

Sinusitis in the pediatric population.

A greater utilization of endoscopes in the evaluation and surgical management of pediatric sinus disease, in addition to the increased sensitivity added by CT diagnosis of sinusitis, has given physicians a heightened awareness of sinusitis in children. Advances in immunology, both diagnostic and therapeutic, have created a more multidisciplinary approach to the management of sinusitis in the pediatric patient. This article will discuss important co-existent diseases, the medical management of pediatric sinusitis, the indications for surgical intervention and outcomes and sequellae of the management of this disease process.