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71 articles from ScienceDaily

Handheld device to diagnose skin cancer

Using shortwave rays installed in cellphones and airport security scanners, researchers have developed a technique that detects skin lesions and determines whether they are cancerous or benign -- a technology that could ultimately be incorporated into a handheld device that could rapidly diagnose skin cancer without a scalpel in sight.

Rare 10 million-year-old fossil unearths new view of human evolution

Near an old mining town in Central Europe, known for its picturesque turquoise-blue quarry water, lay Rudapithecus. For 10 million years, the fossilized ape waited in Rudabánya, Hungary, to add its story to the origins of how humans evolved. What Rudabánya yielded was a pelvis -- among the most informative bones of a skeleton, but one that is rarely preserved.

New piece of Alzheimer's puzzle found

Scientists found two short peptides, or strings of amino acids, that when injected into mice with Alzheimer's disease daily for five weeks, significantly improved the mice's memory. The treatment also reduced some of the harmful physical changes in the brain that are associated with the disease.

Peatlands trap CO2, even during droughts

Scientists studied the two species of moss that make up the peatland. They discovered that in hot weather and drought conditions, one species resists, whereas the other is negatively impacted. In wet weather conditions the opposite takes place. Peatland however survives in the end. Although peatlands make up only 3% of the Earth's surface, they store one third of CO2 present in soil. Preserving...

Genomic migration analysis shows antibiotic resistance moving from humans to animals

New results show that human-acquired antibiotic resistance genes are being transmitted to livestock, companion animals and wildlife. Researchers analyzed a global set of 901 genome sequences of the bacteria Streptococcus agalactiae (aka group B Strep) from nine different host species -- humans, cows, dogs, fish, frogs, gray seals, dolphins, goats and a camel -- to better understand the...

A safer way for police to test drug evidence

Scientists have demonstrated a way for police to quickly and safely test whether a baggie or other package contains illegal drugs without having to handle any suspicious contents directly. The new technique can limit the risk of accidental exposure to fentanyl and other highly potent drugs that can be dangerous if a small amount is accidentally inhaled.

Potential target for cardiac fibrosis treatment

A research team has identified a potential target for treating heart failure related to fibrosis. The study looked at an epigenetic 'reader' protein known as BRD4, showing that it serves a central role in regulating the activation of cardiac fibroblasts. They also found that chemical inhibitors of BRD4 potently block cardiac fibroblast activation.