A new study suggests that dramatic temperature drops associated with glaciations at the poles and in the Northern Hemisphere reached around the globe. The research team analyzed fossil eggshells of large birds, finding a significant temperature shift in Australia's sub-tropical interior.
Researchers at the University of Pennsylvania School of Medicine discovered that nerve growth factor induces cell death in some childhood brain tumor cells. The findings suggest a potential new treatment approach for these cancers, expanding scientists' understanding of NGF's role in development.
Researchers found higher Down syndrome prevalence among Hispanic mothers under 40, lower rates among older mothers, compared to white counterparts. Prenatal genetic testing usage also showed significant differences between ethnic groups.
A new study reveals that hospital noise significantly disrupts the sleep of elderly patients in critical care units. The research found a strong correlation between peak sound levels and sleep arousals, with many patients spending hours awake at night.
A prison-release program for HIV-positive women successfully links clients with medical care and substance-abuse treatment on release from prison. The program resulted in a more than 50-percent decrease in the recidivism rate, with women experiencing reduced rates of return to prison within six months and one year.