We present a case of a young man, who underwent heterotopic heart transplantation 20 years ago, when he was 6 months old. The baby suffered from severe intractable cardiomyopathy. In this desperate situation only a miniature, compromised donor heart became available. Today, the young man is fully active under minimal immunosuppression. His surgical course is reviewed and described.

The geotropic orientation of young mice, on a plane at angles between 20 degrees and 50 degrees to the horizontal, obeys the equations previously found for young rats by Crozier and Pincus (1926-27). When the individuals tested in such experiments are not of the utmost uniformity, the variability of the measured orientations is increased.

When presented with several time-compressed sentences, young adults' performance improves with practice. Such adaptation has not been studied in older adults. To study age-related changes in perceptual learning, the authors tested young and older adults' ability to adapt to degraded speech. First, the authors showed that older adults, when equated for starting accuracy with young adults, adapte...

Maximal force production per unit of muscle mass (muscle quality, or MQ) has been used to describe the relative contribution of non-muscle-mass components to the changes in strength with age and strength training (ST). To compare the influence of age and gender on MQ response to ST and detraining, 11 young men (20-30 years), nine young women (20-30 years), 11 older men (65-75 years), and 11 old...

BACKGROUND Interpersonal conflict is a source of stress and contributes to poor mental health in people with mild to moderate intellectual disabilities. Understanding the contexts in which conflict typically occurs can better equip services to help people with such difficulties. However, existing studies into the contexts of conflict have included participants with wide-ranging ages and may not...

Young people aged 15-24 years account for fifty percent of all new AIDS cases worldwide. Moreover, half of all new HIV infections are associated with injection drug use. The average age for initiation into injecting drug use is 20 years of age. This paper investigates whether HIV prevention programs have reduced risk behaviours in young people.

Streptococcus pneumoniae is a leading cause of morbidity and mortality in both developed and developing countries. The current pneumococcal polysaccharide (PPS) vaccine is highly effective in young adults; however, vaccine efficacy is dramatically decreased in the elderly population. We hypothesized that the decreased vaccine efficacy in the elderly results from altered variable gene family usa...

as a basis for comparison of the different test methods, since it has been shown that genotype ranking according to reaction to natural attack is stable. Two tests gave results significantly correlated with those of natural attack. A test measuring mycelium extension along the young stem from an explant placed on the terminal bud gave a correlation of r = 0.554 (n = 20). An infection by ascospo...

We compared the functional performance of 20 young adult women and 20 older adult women on two types of tasks. One type of task was normal instrumental activities of daily living (e.g., meal preparation, home maintenance) that were meaningful, familiar, and well practiced. The other type was a contrived, relatively unfamiliar task of wrapping a package. Although young and old women did not diff...