Green tea could hold the key to reducing antibiotic resistance
Scientists have discovered that a natural antioxidant commonly found in green tea can help eliminate antibiotic resistant bacteria.
Read moreMonth: September 2019
Promoting earth's legacy delivers local economic benefits
For iconic landscapes such as Grand Canyon or the Appalachian Mountains, geological features are an integral part of their appeal. Yet despite the seeming permanence of cliffs, caves, fossils, and other geological highlights, these features are surprisingly vulnerable to damage or destruction.
Read moreGrand ideas, global reverberations: Grand Canyon at its 6 millionth anniversary
Etched onto the steep walls of Arizona's 6,000-foot-deep, 277-mile-long Grand Canyon are clues that chronicle the sweeping changes the region has experienced during the past two billion years. The canyon's colorful layers narrate tales of ancient environments come and gone, from lofty mountain ranges and tropical seas to a Saharan-scale desert that once stretched across much of western North America.
Read moreCapturing extreme close-ups of cellular gene expression
Scientists studying genetic transcription are gaining new insights into a process that is fundamental to all life. Transcription is the first step in gene expression, the process taking place within all living cells by which the DNA sequence of a gene is copied into RNA, which in turn (most generally speaking) serves as the template for assembling protein molecules, the basic building blocks of life.
Read moreNew framework for nanoantenna light absorption
Harnessing light's energy into nanoscale volumes requires novel engineering approaches to overcome a fundamental barrier known as the 'diffraction limit.' However, researchers have breached this barrier by developing nanoantennas that pack the energy captured from light sources.
Read moreWhy are mountains so high? It doesn't add up
Researchers have analyzed mountain ranges worldwide to show that a theory relating erosion and mountain height doesn't always add up.
Read moreWhy the lettuce mitochondrial genome is like a chopped salad
The genomes of mitochondria are usually depicted as rings or circles. But in plants, 1 ring does not rule them all. A new study of lettuce shows that the mitochondrial genome often forms branching structures with elements that can be swapped around like a chopped salad.
Read moreHuman pressures on mammals in protected areas of West Africa
When a wildlife ecologist started her multiyear camera survey of West African wildlife, she sought to understand interactions between mammals and people in protected areas such as national parks.
Read moreCompound extends survival in mice with certain pediatric brain tumors
Versions of an antibiotic drug called DON first isolated from soil bacteria more than 60 years ago have shown promising signs of extending survival in mice models of especially lethal pediatric brain tumors marked by the high expression of a cancer-causing gene known as the MYC oncogene.
Read moreNew reaction will make indoline scaffolds available for pharmaceutical development
New approach to producing indolent scaffolds could streamline development and production of small-molecule pharmaceuticals, which comprise the majority of medicines in use today.
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