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Science
“#Using DNA in the water tell us how many fish are there” Researchers “counted” Japanese jack mackerel (Trachurus japonicus) in Maizuru Bay, Japan, through quantitative measurements of environmental DNA concentration. Credit: Reiji Masuda, Kyoto University River water, lake water, and seawater contain DNA belonging to organisms such as animals and plants. Ecologists have begun to…
“#Toward lasers powerful enough to investigate a new kind of physics” Credit: Pixabay/CC0 Public Domain In a paper that made the cover of the journal Applied Physics Letters, an international team of researchers has demonstrated an innovative technique for increasing the intensity of lasers. This approach, based on the compression of light pulses, would make…
“#More ecosystem engineers create stability, preventing extinctions” Elephants engineer their ecosystems — they root out saplings and small trees, creating habitats for smaller vertebrates, which helps maintain the grassland. Credit: Justin Yeakel Biological builders like beavers, elephants, and shipworms re-engineer their environments. How this affects their ecological network is the subject of new research, which…
“#Sea turtles find protection from Senegal fishermen” Leatherback sea turtles can weigh up to 600 kilogrammes In a classic case of “poacher turning gamekeeper”, the fishermen of Senegal have joined forces to protect one of the ocean’s most endangered species—the sea turtle. Three species can be found on the Senegal coast in west Africa. The…
“#Taking the measure of noise pollution during COVID lockdown” Credit: Pixabay/CC0 Public Domain Samuel Challeat was riding his bike in the city of Toulouse in the hours before France’s strict COVID-19 lockdown took hold when the thought came to him. What impact will confinement have on the urban sound environment, and how could it be…
“#Let me flow: Bosnians wage war on mini hydro plants” The hydro sector is booming in Bosnia—but so are the protests against it Looking out over the clear cascades of the Neretvica river in the heart of Bosnia, Safet Sarajlic says he is ready to spill his blood to defend the waterway from a hydropower…
“#How life on Earth could help us find life on Mars” The conditions on early Mars were habitable, says Dr Alberto Fairén. Credit: NASA In our continuing search for other life in the universe, one place has always looked promising—Mars. It is a rocky planet like Earth, orbiting the same star, and at a distance…
“#West Virginia researchers use neutrons to study materials for power plant improvements” Researchers from West Virginia University used VULCAN at the Spallation Neutron Source to study materials called high-entropy oxides to develop industrial and consumer-based applications for improved energy storage and conversion. Team members include (left) Wei Li, Yi Wang, Wenyuan Li, Hanchen Tian, and…
“#Why are the offspring of older mothers less fit to live long and prosper?” Mother rotifer (Brachionus manjavacas) carrying four eggs (right) and newly-hatched daughter (left). Image of live rotifers acquired using polychromatic polarization and phase contrast. Credit: Michael Shribak, Evgeny Ivashkin, Kristin Gribble The offspring of older mothers don’t fare as well as those…
“#US says leaking nuclear waste dome is safe; Marshall Islands leaders don’t believe it” Credit: CC0 Public Domain In response to a directive from Congress, the Department of Energy released a report this week assessing the risks of a 50-year-old cracking and crumbling concrete nuclear waste repository in the Marshall Islands, but the findings did…