A microcalorimeter for measuring heat effects of electrochemical reactions with submonolayer conversions.

We present a microcalorimeter for measuring heat effects during electrochemical reactions with conversions down to a few percent of a monolayer, referenced to the electrode's surface atoms. The design uses a thin pyroelectric polymer foil for temperature measurement at the backside of a thin electrode, similar to the concepts pioneered by the groups of D. A.

Heat effects upon electrochemical copper deposition on polycrystalline gold.

Heat effects upon Cu deposition on polycrystalline Au surfaces from sulphuric acid electrolytes were calorimetrically measured. By combination of pyroelectric temperature detection at the backside of a thin electrode foil with pulsed electrochemistry, sensitivities to electrochemical conversions of a few percent of a Cu monolayer (ML), corresponding to about 1 microJ cm(-2) were achieved. We compared the heat evolution upon Cu under potential deposition (UPD), Cu deposition onto a fully developed Cu UPD layer and bulk Cu deposition onto a 300 ML thick Cu layer on Au.

Dental school applicants' use of website information during the application process.

The University of Pittsburgh's School of Dental Medicine (SDM) is a medium-sized, private, state-related dental school. As other schools have done recently, the SDM made a substantial effort to upgrade its website in 2003. Internal satisfaction and anecdotal data notwithstanding, there is no measure of the website's usefulness in attracting applicants.

Status of genetics education in U.S. dental schools.

Genomics research is rapidly increasing our understanding of the genetic basis of normal and abnormal growth, development, and disease. Genetic information and technologies are also being applied to develop new diagnostic and treatment strategies. Many diseases with dental, oral, and craniofacial manifestations have a genetic basis.

Type 1 diabetes mellitus, xerostomia, and salivary flow rates.

Objective: The Oral Health Science Institute at the University of Pittsburgh has completed a cross-sectional epidemiologic study of 406 subjects with type 1 diabetes and 268 control subjects without diabetes that assessed the associations between oral health and diabetes. This report describes the prevalence of dry-mouth symptoms (xerostomia), the prevalence of hyposalivation in this population, and the possible interrelationships between salivary dysfunction and diabetic complications.

Study Design: The subjects with diabetes were participants in the Pittsburgh Epidemiology of Diabetes Complications study who were enrolled in an oral health substudy.