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“#New high proton conductors with inherently oxygen deficient layers open sustainable future” We report Ba5Er2Al2ZrO13, a hexagonal perovskite-related oxide as a new class of proton conductors exhibiting higher conductivities than 10?3 S cm?1 between 300 and 1200°C. A new structure family of proton conductors with the inherently oxygen-deficient h? layer offers a strategy in designing…
“#Study shows great specificity of action by enzymes to correct double-strand DNA breaks” Credit: CC0 Public Domain Our cells are constantly dividing, and as they do, the DNA molecule—our genetic code—sometimes gets broken. DNA has twin strands, and a break in both is considered especially dangerous. This kind of double-strand break can lead to genome…
“#Plant study challenges tropics’ reputation as site of modern evolutionary innovation” The tropics are the birthplace of most rosids, a massive group of flowering plants that includes this Sterculia monosperma, a nut-bearing tree native to southern China and Taiwan. But rosids are diversifying faster in temperate zones, a finding that challenges a longstanding hypothesis about…
“#Yellow pond-lily prefers cyclic flowers to spiral ones” Credit: CC0 Public Domain Biologists from Lomonosov Moscow State University and HSE University have studied the patterns of flower development in yellow water-lily (Nuphar lutea). They found out that all the floral organs are arranged in cycles (whorls) rather than inserted sequentially in a spiral, as is…
“#Sorting and secreting insulin by expiration date” Researchers took this image of an insulin-secreting cell from a mouse using a technique to label insulin granules, by age. In younger granules, the marker emits a green fluorescent light; as granules get older, the marker begins to emit a red fluorescence. The researchers found that cells’ preference…
“#COVID-19 shines spotlight on gender inequity in academia” Credit: CC0 Public Domain As COVID-19 spread across the country earlier this year, forcing schools and universities to close, Jessica L. Malisch began to notice an alarming trend—but not related to the virus. “I was alarmed by patterns I was observing in the academic community in regards…
“#Researchers foresee linguistic issues during space travel” An image from NASA’s Spitzer Space Telescope shows the Tarantula Nebula in three wavelengths of infrared light, each represented by a different color. Credit: NASA / JPL-Caltech It lacks the drama of a shape-shifting alien creature, but another threat looms over the prospect of generations-long, interstellar space travel: Explorers…
“#Newly discovered pathogen in NY apples causes bitter rot disease” Apple with bitter rot disease, caused by a Colletotrichum fungus. Credit: image provided by Srdjan Goran Acimovic In a study of New York state apple orchards, Cornell plant pathologists have identified a new fungal pathogen that causes bitter rot disease in apples. Also, a second…
“#Leap in lidar could improve safety, security of new technology” A silicon chip with a tiled array of serpentine optical phased array (SOPA) tiles. The 32 tiles in the 8-by-4 array have slightly differing grating designs, showing here two matching pairs of tiles “lighting up” at this viewing angle. Drawn superimposed are beams from two…
“#Study reveals secret life of lithium in Sun-like stars” This Hubble Space Telescope image shows stars at various stages of their lives, from young blue-hot stars to cooler red giants. Our study focused on the lithium content of red giant stars Credit: NASA, ESA, and T. Brown (STScI) Lithium is becoming common in our everyday…