Michael C. Harper

Learn More
CEPR and CAED for many helpful comments on earlier drafts of this paper. The analyses and results presented in this paper are attributable to the authors and do not necessarily reflect concurrence by the Bureau of the Census or Fannie Mae. We thank Brian Friedman of the Bureau of Labor Statistics for providing us with the four-digit BLS series used in this(More)
INTRODUCTION A majority of the elderly suffer from some sort of sleep disturbance. Common sleep disturbances are insomnia and excessive daytime sleepiness. There are no published studies on the prevalence of sleep disturbance in the assisted living (AL) setting. OBJECTIVE To estimate the prevalence, types, and associations of sleep disturbance in a(More)
Glutamate is a major excitatory neurotransmitter in the central nervous system and plays a significant role in the pathophysiology of ischemic stroke. During acute ischemic cerebrovascular disease, glutamate efflux in the CNS produces excitotoxicity in neurons and may mediate forms of stress in other tissues expressing glutamate ionotropic(More)
We used a cross-sectional study to examine the correlates of caregiver-rated quality of life (QOL) in 198 randomly selected residents from a stratified random sample of 22 assisted living facilities in central Maryland. We measured QOL by using the Alzheimer's Disease-Related Quality of Life Questionnaire. In general, despite cognitive impairment, residents(More)
Several groups have recently described the endothelial cell (EC) as an important target of pathological mediators in multiple sclerosis (MS). Despite the recognition of the EC as a significant target in MS and a possible beneficiary of Beta-interferon therapy, the structural changes which occur in the cerebrovascular endothelium and the effects of(More)
The idea of biological race—a conception of race that postulates that racial groups are distinct, genetically homogenous units—has experienced a dramatic resurgence in popularity in recent years. It is commonly understood, however, that the U.S. Supreme Court has rejected the idea that races are genetically uniform groupings of individuals. Almost a century(More)
  • 1