(PhysOrg.com) -- Researchers at the Stanford Security Laboratory create a computer program to defeat audio captchas on website account registration forms, revealing a design flaw that leaves them vulnerable to automated attacks.
Computer Sciences
May 24, 2011
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In a new study, researchers demonstrate an automated, easy-to-operate quantum key distribution (QKD) system using the fiber network in the city of Padua, Italy. The field test represents an important step toward implementing ...
Quantum Physics
Jun 10, 2021
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In diagnostic medicine, biopsies, where a sample of tissue is extracted for analysis, is a common tool for the detection of many conditions. But this approach has several drawbacks—it can be painful, doesn't always extract ...
Biotechnology
Feb 8, 2021
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Chemists studying how life started often focus on how modern biopolymers like peptides and nucleic acids contributed, but modern biopolymers don't form easily without help from living organisms. A possible solution to this ...
Evolution
Oct 28, 2020
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There's a good reason your doctor asks for a urine sample at your annual checkup. A simple, color-changing paper test, dipped into the specimen, can measure levels of glucose, blood, protein and other chemicals, which in ...
Analytical Chemistry
May 16, 2016
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Researchers from Uppsala University in Sweden can now reveal the mechanism behind the curved path of a curling stone. The discovery by the researchers, who usually study friction and wear in industrial and technical applications, ...
General Physics
May 13, 2013
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It's possible to prevent heartworms in many of your furry friends—dogs, cats and ferrets, specifically.
Veterinary medicine
Jan 30, 2023
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Known to be fine regulators of gene expression, microRNAs are small molecules that remain particularly stable in biofluids—blood, urine, etc. In humans, these molecules have revealed great potential as prognostic or diagnostic ...
Ecology
Dec 10, 2021
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Australian research could help breeders develop more drought-resilient crops that can produce more food and more profit with less water.
Biotechnology
Oct 16, 2019
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A large number of plant pathogens, ranging from small infectious particle viroids to pathogenic plants, can cause diseases in crops. The infected plants may develop mild symptoms or devastating disease. The estimated loss ...
Biotechnology
May 31, 2013
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