The psychiatric sequelae of the COVID-19 pandemic in adolescents, adults, and health care workers.

Background: The COVID-19 pandemic is the most serious global public health crisis since the 1918 influenza pandemic. This study is the first to assess its mental health impact across the lifespan in the United States in adolescents, adults, and health care workers.

Methods: We recruited 4909 participants through an online survey advertising on Facebook and Instagram to assess exposure to COVID-19 and psychiatric symptoms from April 27 to July 13.

Injury patterns in recreational alpine skiing and snowboarding at a mountainside clinic.

Objective: The purpose of this study was to examine the demographic and injury characteristics of skiing and snowboarding at a mountainside clinic.

Methods: Prospectively collected data of all acutely injured patients at the Big Sky Medical Clinic at the base of Big Sky Ski Area in the Northern Rocky Mountains were reviewed. A total of 1593 patients filled out the study questionnaire during the 1995-2000 and 2009-2010 ski seasons.

Persian leopard (Panthera pardus) attack in Oklahoma: case report.

The authors report a fatal case of a Persian leopard (Panthera pardus) attack in an animal sanctuary in Oklahoma. The victim was a 53-year-old Costa Rican woman who was attempting to feed the animal when she was attacked and killed. Autopsy, radiography, fingerprint analysis, microbiologic cultures, and dental impressions were used to evaluate the case.

Interfacial bond strengths of amalgam bonded to amalgam and resin composite bonded to amalgam.

Objective: The effects of time, surface preparation, and use of a bonding agent on the ability to bond amalgam or resin composite to amalgam were studied.

Method And Materials: Cylindrical amalgam specimens were prepared in a split die (32 groups of 10 each). The 32 groups were divided into two groups of 16 each: amalgam bonded to amalgam and resin composite bonded to amalgam.

Uses and properties of current glass ionomer cements: a review.

Glass ionomer cements have been used for a variety of restorative purposes. Recently, the formulation of these and other restorative materials has changed rapidly, so it is difficult to keep pace with the literature concerning effective use. A major modification to glass ionomer cements has been incorporation of resin components.