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New inexpensive method to detect lime in soil
Scientists have developed a new simple, inexpensive and fast method to detect and measure very low concentrations of agricultural lime in soils, which is generally a time consuming and difficult exercise. The research is published in leading soil science journal Geoderma. PhD student and lead author of the study Ruby Hume, developed this method as…
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Lactic acid bacteria can extend the shelf life of foods
Researchers have generated a lactic acid bacterium that efficiently secretes a food-grade preservative when grown on dairy waste. Nisin is a food-grade preservative, which can extend the shelf life of foods, and thus can be used to reduce food waste. The discovery also makes it possible to better utilize the large quantities of whey generated…
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Sewer slime can hang on to SARS-CoV-2 RNA from wastewater
Researchers report that sewer slime can accumulate SARS-CoV-2 RNA, which could decompose or slough off later, potentially impacting the accuracy of wastewater epidemiology studies. As the water and sludge from people’s homes converge in sewers, some of the solids settle out, and gooey microbial biofilms build up within the pipes. Previous researchers have shown that…
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Poplar genetically modified not to harm air quality grow as well as non-modified trees
Field trials in Oregon and Arizona show that poplar trees, which emit trace amounts of the gas isoprene, can be genetically modified not to harm air quality while leaving their growth potential unchanged. The findings, published today in the journal Proceedings of the National Academy of Sciences, are important because poplar plantations cover 9.4 million…
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Crops provide chimpanzees with more energy than wild foods
A new study has found that cultivated foods offer chimpanzees in West Africa more energetic benefits than wild foods available in the region. The findings have made a significant development for our further understanding into human-primate coexistence and can help to inform conservation efforts for future improvement, particularly in locations where agricultural expansion is encroaching…
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Landslides: long-term effects on tundra vegetation
Landslides have long-term effects on tundra vegetation, a new study shows. Conducting the study in North West Siberia, the researchers found that tundra vegetation regenerated rapidly after a major landslide event in 1989. Several studies have reported changes in the Normalized Difference Vegetation Index (NDVI) in Arctic regions. So far, remote sensing data that is…
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Protected area designation effective in reducing, but not preventing, land cover changes
The designation of protected areas in Europe has been effective in reducing, but not completely preventing, land cover changes associated with human activity. Land cover change involves massive transitions from natural to less natural habitats and thereby threatens ecosystems and the services they provide. To retain intact ecosystems and reduce land cover change, a dense…
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Icy ocean worlds seismometer passes further testing in Greenland
The Seismometer to Investigate Ice and Ocean Structure (SIIOS) performed well in seismic experiments conducted in snowy summer Greenland, according to a new study. SIIOS could be a part of proposed NASA spacecraft missions to the surface of Europa or Enceladus. These moons of Jupiter and Saturn are encrusted by an icy shell over subsurface…
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Imaging spectroscopy can predict water stress in wild blueberry fields
Imaging spectroscopy can help predict water stress in wild blueberry barrens, according to a new study. Researchers deployed a drone with a spectrometer to photograph wild blueberry fields, then process the images to measure reflected light spectra from plants for properties that would help them estimate water potential. Incorporating data from the images into models…
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Fiber optic cable monitors microseismicity in Antarctica
Researchers shared how they are using fiber optic cable to detect the small earthquakes that occur in ice in Antarctica. The results could be used to better understand the movement and deformation of the ice under changing climate conditions, as well as improve future monitoring of carbon capture and storage projects, said Anna Stork, a…