Myocardial fibrosis, inflammation, and altered cardiac gene expression profiles in rats exposed to a predator-based model of posttraumatic stress disorder.

People who are exposed to life-threatening trauma are at risk of developing posttraumatic stress disorder (PTSD). In addition to psychological manifestations, PTSD is associated with an increased risk of myocardial infarction, arrhythmias, hypertension, and other cardiovascular problems. We previously reported that rats exposed to a predator-based model of PTSD develop myocardial hypersensitivity to ischemic injury.

Pitch (F0) and formant profiles of human vowels and vowel-like baboon grunts: the role of vocalizer body size and voice-acoustic allometry.

Key voice features--fundamental frequency (F0) and formant frequencies--can vary extensively between individuals. Much of the variation can be traced to differences in the size of the larynx and vocal-tract cavities, but whether these differences in turn simply reflect differences in speaker body size (i.e.

Enhancing quality critical care education: establishing a consortium.

The demand for expanded knowledge and accountability in critical care nursing has increased the need for qualified critical care nurses and is tempered by requirements that their preparation be cost-effective. The Emory University School of Nursing (EUSN) has pioneered in meeting this challenge. Since June 1988, a Critical Care Consortium consisting of the EUSN and Emory-affiliated hospitals has been operational, providing uniform critical care education to multiple hospital nursing staffs.

Living wills: the ethical dilemmas.

Advanced technology has created various means to prolong life, along with the supposed obligation to use those technologies. Often costly, these technologies may have little or no impact on the outcomes of illness. When and how that technology should be used may result in conflict.