Atomic force microscope images show an enzyme molecule straddling a strand of DNA and pulling it along to complete the transcription phase of manufacturing proteins in cells.
Changing one amino acid in light-sensitive pigments alters their molecular properties.
Children take different paths in developing an internal guide to right and wrong behavior, depending on how well early temperament meshes with a mother's child-rearing practices.
Coating substances with plastics that cling to tissue and slowly erode holds promise as a way to deliver medicines.
Researchers discuss the latest findings about the possibility that traces of ancient, primitive life remain in a Martian meteorite.
A novel polymer offers the possibility of lowering the cost and increasing the reliability of blood-sugar monitoring.
Investigators have found a single gene whose inactivation may contribute to a variety of cancers, including a rare malignancy that affects the brain and a common form of breast cancer.
A population viability analysis of Florida's manatees paints a precarious future for the animals.
Close-up images of small patches of Callisto's surface reveal that this icy Jovian moon is curiously devoid of small and midsize craters.
Malignant tumors are detected at the same rate in a self-exam group as in a control group.
One-quarter of all women with breast implants develop serious complications.
Twice in the planet's distant past, ice ages have engulfed the globe.
Scientists are gearing up to hunt for microbes hiding out in unusual places.
Tracking the erratic path of a microsphere immersed in a tiny volume of fluid allows researchers to determine the liquid's flow properties.
The ends of a cylindrical carbon nanotube can join to form a doughnut-shaped ring.
Researchers can use X-ray microbeams to track atomic rearrangements in narrow wires and measure stress buildup during electromigration.
Microbes thrive far below ground
Once considered sterile, Earth's deep crust turns out to be rife with life.
Scientists consider how disgusting tastes can linger surreptitiously in memory
The tendency of a wide variety of animals to avoid food or drink associated with nausea has spawned research into the biology of taste aversion, predator control, social communication about dangerous food, and anorexia nervosa.
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