A compact x-ray diffraction system for dynamic compression experiments on pulsed-power generators.

Pulsed-power generators can produce well-controlled continuous ramp compression of condensed matter for high-pressure equation-of-state studies using the magnetic loading technique. X-ray diffraction (XRD) data from dynamically compressed samples provide direct measurements of the elastic compression of the crystal lattice, onset of plastic flow, strength-strain rate dependence, structural phase transitions, and density of crystal defects, such as dislocations. Here, we present a cost-effective, compact, pulsed x-ray source for XRD measurements on pulsed-power-driven ramp-loaded samples.

The 3 D's of geriatric psychiatry: depression, delirium, and dementia.

A Caucasian female octogenarian with multiple medical problems was admitted to the inpatient geriatric psychiatry unit with intermittent altered mental status and decline in memory. She had been hospitalized four times in the previous three months. She was admitted on more than 10 medications and received more than 20 different medications in this time period.

Tetrabenazine for the treatment of tardive dyskinesia.

Objective: To evaluate the safety and effectiveness of tetrabenazine for the treatment of tardive dyskinesia.

Data Sources: Literature was accessed through MEDLINE (1966-September 2010) and The Cochrane Library using the terms tetrabenazine, tardive dyskinesia, and movement disorders. In addition, references from publications identified were reviewed.

Management of insomnia in elderly patients using eszopiclone.

Insomnia is a common sleep complaint in the elderly. The safety and efficacy of eszopiclone, a non-benzodiazepine hypnotic, in elderly patients with chronic insomnia has been established in two 2-week and one 12-week randomized, double-blind, placebo-controlled trials. Eszopiclone 1 mg was effective in reducing sleep latency.

Fill-tube-induced mass perturbations on x-ray-driven, ignition-scale, inertial-confinement-fusion capsule shells and the implications for ignition experiments.

On the first inertial-confinement-fusion ignition facility, the target capsule will be DT filled through a long, narrow tube inserted into the shell. microg-scale shell perturbations Delta m' arising from multiple, 10-50 microm-diameter, hollow SiO2 tubes on x-ray-driven, ignition-scale, 1-mg capsules have been measured on a subignition device. Simulations compare well with observation, whence it is corroborated that Delta m' arises from early x-ray shadowing by the tube rather than tube mass coupling to the shell, and inferred that 10-20 microm tubes will negligibly affect fusion yield on a full-ignition facility.