Culture

An individual's reason for undergoing a medical intervention -- be it to prevent or treat disease, earn money, or to have a child -- may result in variations in the bodily experience of the patient, Yale researchers have found.

With Derby Day, the Kentucky Derby, just around the corner, it's time to think about big hats, horses with one eye, and...chemistry.

No, no, just kidding. Well, sort of. The chemistry of bourbon anyway. While it's not as good as proper whisky, it has its fans and we don't want the world to think we have any sort of Gaelic bias, so the upstarts in the colonies can have their day here also.

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Halloween is a time for children to dress up as witches, ghouls and goblins, but historically witchcraft was serious business, according to a Duke University professor.

Though people today might view witchcraft as mere superstition, it’s evident from anthropological literature that, for some people, the practice has served a basic human need, said Anne-Maria Makhulu, an assistant professor of cultural anthropology who studies the ongoing practice of witchcraft in Africa.

The newest dinosaur species to emerge from Grand Staircase-Escalante National Monument had some serious bite, according to researchers from the Utah Museum of Natural History (UNMH) at the University of Utah. “It was one of the most robust duck-billed dinosaurs ever,” said lead author Terry Gates. “It was a monster.”

Usually when a solid melts, its volume increases. In addition, when pressure is increased, it becomes increasingly difficult to melt a material.

However, sodium tells a different story.

As pressure is increased, liquid sodium initially evolves into a more compact local structure. In addition, a transition takes place at about 65 GPa (120 million atmospheres of pressure) that is associated with a threefold drop in electrical conductivity.

The Carbon Disclosure Project (CDP), a collaboration of over 315 institutional investors with assets under management of more than $41 trillion, releases its 5th annual global report, providing the largest and most comprehensive database of strategies from the world's largest corporations regarding the impact of climate change on shareholder value.

The growth and conversion of biofuel crops could raise rather than lower greenhouse gas emissions, says a new study led by Nobel prize-winning chemist Paul Crutzen, best known for his work on the ozone layer.

He and his colleagues have calculated that growing some of the most commonly used biofuel crops releases around twice the amount of the potent greenhouse gas nitrous oxide (N2O, also known as ‘laughing gas’) than previously thought – wiping out any benefits from not using fossil fuels and, worse, probably contributing to global warming.

What began more than 50 years ago as a way to improve fishing bait in California has led a University of Tennessee researcher to a significant finding about how animal species interact and that raises important questions about conservation.

In the middle of the 20th century, local fishermen who relied on baby salamanders as bait introduced a new species of salamander to California water bodies. These Barred Tiger salamanders came into contact with the native California Tiger salamanders, and over time the two species began to mate.