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ScienceDaily: Top Environment News |
'Conductor' gene found in plant root stem cell 'orchestra' Posted: 06 Dec 2019 06:08 AM PST Researchers lift the veil on the 'conductor' plant root stem cell gene that helps orchestrate and coordinate stem cell division of different root stem cell types, ensuring the harmonic communication necessary for plant growth and maintenance. |
BPA levels in humans dramatically underestimated Posted: 05 Dec 2019 03:34 PM PST Researchers have developed a more accurate method of measuring bispehnol A (BPA) levels in humans and found that exposure to the endocrine-disrupting chemical is far higher than previously assumed. The study provides the first evidence that the measurements relied upon by regulatory agencies, including the US Food and Drug Administration, are flawed, underestimating exposure levels by as much as 44 times. |
New marker for insecticide resistance in malaria-carrying mosquitoes Posted: 05 Dec 2019 08:31 AM PST Researchers have genetically modified malaria carrying mosquitoes in order to demonstrate the role of particular genes in conferring insecticide resistance. |
Lights on fishing nets save turtles and dolphins Posted: 05 Dec 2019 08:31 AM PST Placing lights on fishing nets reduces the chances of sea turtles and dolphins being caught by accident, new research shows. |
Brewing beer that tastes fresh longer Posted: 04 Dec 2019 11:57 AM PST Unlike wine, which generally improves with time, beer does not age well. Usually within a year of bottling, the beverage starts to develop an unpleasant papery or cardboard-like flavor that drinkers describe as 'stale.' Now, researchers have engineered lager yeast to make more molecules that protect beer against staling, resulting in improved flavor stability. |
How tiny enzymes reign supreme in worldwide carbon recycling Posted: 04 Dec 2019 11:57 AM PST That white rot fungi on fallen logs in a forest, it's super important. |
Better wildfire and smoke predictions with new vegetation database Posted: 04 Dec 2019 11:57 AM PST Researchers have created the first comprehensive database of all the wildfire fuels that have been measured across North America. Ultimately, it can help scientists make more informed decisions about fire and smoke situations. |
Silverswords may be gone with the wind Posted: 04 Dec 2019 11:57 AM PST Silversword plants of Hawai'i - known by their Hawai'ian name 'ahinahina which translates to very grey - are unique to the Maui's Haleakala volcano summit area and to the Mauna Kea and Mauna Loa volcanoes on the Big Island. Each volcanic mountain has its own unique type of silversword. |
Scientists create 'epigenetic couch potato' mouse Posted: 04 Dec 2019 11:57 AM PST A study in mice shows for the first time that epigenetics -- the molecular mechanisms that determine which genes are turned on or off -- plays a key role in determining an individual's innate drive to exercise. |
Solving the mystery of carbon on ocean floor Posted: 04 Dec 2019 11:57 AM PST Little bits of black carbon littering the ocean floor, separate and distinct from the organic carbon believed to come from the ocean's surface. The source of that strange, and older, carbon has now been identified. The discovery is an important step in understanding the marine carbon cycle. |
Protected habitats near US borders Posted: 04 Dec 2019 11:49 AM PST The clustering of protected habitats in the Americas near international borders makes many iconic, wide-ranging animals physically dependent on good relations between neighboring countries and wildlife-friendly borders. |
Studying water quality with satellites and public data Posted: 04 Dec 2019 11:49 AM PST The researchers built a novel dataset of more than 600,000 matchups between water quality field measurements and Landsat imagery, creating a 'symphony of data.' |
Short-term radon test kits are not effective in measuring radon gas exposure Posted: 04 Dec 2019 09:46 AM PST A new study finds the only reliable way to measure exposure to radon gas is with a long-term testing kit, 90 or more days. Researchers placed two test kits, a short term (five-day) and long term (90-day) in the same homes. Tests were conducted during summer and winter months. Findings showed the short-term kits were imprecise up to 99 percent of the time when compared to a long term test. |
Researchers decipher small Dead Sea mammal's vocal communication Posted: 04 Dec 2019 09:45 AM PST With the Law of Brevity in mind, researchers examined whether call amplitude, rather than call duration, might be the main factor by which animal vocal repertoires are optimized. They fitted rock hyraxes with audio recorders and logged all of their calls, creating full vocal repertoire. The researchers demonstrate how changing necessities can affect the development of different voices for various purposes, and provide clues as to how the complexity of human language began to develop. |
Seismologists see future in fiber optic cables as earthquake sensors Posted: 04 Dec 2019 08:32 AM PST Each hair-thin glass fiber in a buried fiber optic cable contains tiny internal flaws -- and that's a good thing for scientists looking for new ways to collect seismic data in places from a busy urban downtown to a remote glacier. |
Medical marijuana cards often sought by existing heavy users Posted: 04 Dec 2019 07:05 AM PST Young adults who seek enrollment in state medical marijuana programs are often those who already use heavily rather than those with mental or physical issues that could be addressed by the drug. |
Manuka honey 'sandwich' could be key to fighting infections Posted: 04 Dec 2019 07:05 AM PST Sandwiching nano-layers of manuka honey between layers of surgical mesh inhibits bacteria for up to three weeks as the honey is slowly released, new research shows. |
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