Death rates have declined among children and young adults in the poorest counties in the United States, according to the study published in Science. The results should be particularly encouraging to policymakers engaged in projects aimed to promote public health, like anti-tobacco initiatives or food and nutrition programs.
Scientists from Princeton University and Uppsala University have identified a specific gene that within a year helped spur a permanent physical change in a finch species in response to a drought-induced food shortage. The findings provide a genetic basis for natural selection that, when combined with observational data, could serve as a comprehensive model of evolution.
A team including Princeton University researchers has found that tree species that can withstand stress to the water-transport system that carries water from the roots to the crown are less susceptible to drought and massive die-off. The findings could help forestry experts, especially in the American West, create early-warning systems and take precautionary steps to reduce a forest's vulnerability to drought.
Eight new projects, from novel ways to control mosquitoes to a telescope for studying the Big Bang, have been awarded funding through the Dean for Research Innovation Funds.
Princeton University researchers found that ocean currents can carry objects to almost any place on the globe in less than a decade, faster than previously thought. While good for microorganisms such as phytoplankton that are essential to the marine food web, it also means that plastic debris, radioactive particles and virtually any kind of litter can quickly become a problem in areas far from where they originated
When it comes to predicting death, rudimentary measures—like a person’s age or a person’s ability to climb stairs or walk a short distance—are much more powerful predictors of survival than certain biomarkers, according to a study published in PLOS ONE.