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Tag: tiny

Insects leave tiny traces of DNA on the flowers they visit

Insects leave tiny traces of DNA on the flowers they visit

Science
Feb. 8 (UPI) -- Scientists have developed new tools for identifying the tiny traces of DNA on flower petals left behind by insect visitors. By analyzing DNA signatures on flower petals, scientists can more easily track the movement and feeding patterns of vulnerable pollinators like bees and butterflies, as well as identify novel plant-insect relationships. Environmental DNA, or eDNA, is the mix of genetic material left behind by organisms. Previously, scientists have analyzed eDNA from ocean samples to characterize biological diversity in different marine ecosystems. Because a single meadow or field can host hundreds of insect species that visit hundreds of different plant species, tracking biological activity can prove difficult. The latests DNA analysis techniques "I have worked with ...
NASA spacecraft hurtles toward tiny, icy world beyond Pluto

NASA spacecraft hurtles toward tiny, icy world beyond Pluto

Technology
The NASA spacecraft that yielded the first close-up views of Pluto hurtled toward a New Year's Day rendezvous with a tiny, icy world a billion miles farther out, in what would make it the most distant cosmic body ever explored by humankind. New Horizons was on course to fly past the mysterious, ancient object nicknamed Ultima Thule at 12:33 a.m. Tuesday. The close encounter comes 3½ years after the spacecraft swung past Pluto. This time, the drama was set to unfold more than 4 billion miles (6.5 billion kilometers) from Earth, so far away that it will be 10 hours before flight controllers at Johns Hopkins University's Applied Physics Laboratory in Laurel find out whether the probe survived the flyby. A few black-and-white pictures of Ultima Thule might be available following that ...
Tiny pacemaker prototype avoids open chest surgery for infants

Tiny pacemaker prototype avoids open chest surgery for infants

Health
Nov. 9 (UPI) -- A pacemaker protype the size of an almond designed to make procedures for infants less invasive, less painful and more efficient has been tested on pigs. Dr. Rohan Kumthekar, a cardiology fellow at the Sheikh Zayed Institute for Pediatric Surgical Innovation at Children's National Medical Center in Washington, D.C., will show off the device and present his abstract Sunday at the American Heart Association's Scientific Sessions 2018 in Chicago. Kumthekar believes the process will lead to shorter surgeries, faster recovery times and reduced medical costs. "Placing a pacemaker in a small child is different than operating on an adult, due to their small chest cavity and narrow blood vessels," Kumthekar said in a press release. "By eliminating the need to cut through the sternu...
Tiny beetle gives clues for continental drift

Tiny beetle gives clues for continental drift

Science
Oct. 31 (UPI) -- A small, ancient beetle might provide clues to how the Earth's landmass shifted, a study says. Researcher Shuhei Yamamoto believes a beetle trapped in piece of Burmese amber from 99 million years ago is the distant ancestor to insects found on the other side of the world today. He came upon this beetle in 2016, and now he thinks could provide more evidence for the theory of continental drift. "Like koalas and kangaroos today, certain animals that we think lived in Gondwanaland are only found in one part of the world. Although Propiestus went extinct long ago, our finding probably shows some amazing connections between Southern Hemisphere and Myanmar," Yamamoto said. "Our finding fits well with the hypothesis that, unlike today, Myanmar was once located in the Southern Hem...
China 'put tiny chips in US PCs to steal tech secrets'

China 'put tiny chips in US PCs to steal tech secrets'

Business
Tiny chips inserted in US computer equipment manufactured in China were used as part of a vast effort by Beijing to steal US technology secrets, according to Bloomberg. Apple and Amazon have distanced themselves from claims that they were among US companies targeted by the Chinese hackers.Bloomberg reported that the chips were inserted in computer motherboards manufactured in China for US-based supplier Super Micro Computer.It said dozens of large US firms and agencies were using the hardware - but Amazon first discovered the chips, the size of a grain of rice, during a security review it ordered after buying a software firm called Elemental three years ago.Bloomberg said the retail-to-cloud computing company alerted US authorities at the time, resulting in an inquiry and a...