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Glyphosate pesticides persist for years in wild plants and cause flower infertility

Researchers show for first time that commonly used herbicides can persist within wild forest plants for years, reducing fertility long-term and potentially also impacting pollinators

2021-06-16
(Press-News.org) An herbicide widely used in agriculture, forestry and other applications can cause deleterious effects on the reproductive health of a common perennial plant found in forests in British Columbia, Canada. Researchers reported in the journal END


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Semiconductor technology mitigates fire risk in electric vehicle batteries

Semiconductor technology mitigates fire risk in electric vehicle batteries
2021-06-16
Despite rapid development of electric vehicles (EVs), the safety of the lithium-ion (Li-ion) batteries remains a concern as they are as a fire and explosion risk. Among the various approaches to tackle this issue, Korean researchers have used semiconductor technology to improve the safety of Li-ion batteries. A research team from the Korea Institute of Science and Technology (KIST) led by Dr. Joong Kee Lee of the Center for Energy Storage Research has succeeded in inhibiting the growth of dendrites, crystals with multiple branches that cause EV battery fires by forming protective semiconducting passivation layers on the surface of Li electrodes. When ...

Nematic transition and nanoscale suppression of superconductivity in an iron chalcogenide

Nematic transition and nanoscale suppression of superconductivity in an iron chalcogenide
2021-06-16
Chestnut Hill, Mass. (6/16/2021) - In unconventional superconductors, electrons often exhibit a tendency towards spatial ordering within their atomic structure. In high-temperature superconductors, this comes in the form of the electronic structure exhibiting a pronounced difference in the lattice-bound directions along which atoms are ordered. Within these materials, this electronic activity in turn breaks the rotational symmetry of the crystal, a phase known as electronic nematicity. Researchers have sought to better understand this novel electronic state, which co-exists with superconductivity. Boston College Associate Professor of Physics Ilija Zeljkovic and an international team of researchers set out to better understand the atomic-scale signature ...

Anti-inflammatory effects of omega-3 fatty acids could help reduce depression

2021-06-16
The omega-3 polyunsaturated fatty acids (PUFAs) eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) are found in oily fish. Researchers from the National Institute of Health Research (NIHR) Maudsley Biomedical Research Centre assessed the effects of high doses of EPA and DHA in lab-grown neurones and then in patients to help clarify how they reduce inflammation and depression. This novel approach allowed the scientists to identify an important molecular mechanism which can help inform the development of potential new treatments involving omega-3 fatty acids for patients with depression. Lead author Dr Alessandra Borsini, NIHR Maudsley BRC Senior Postdoctoral ...

Drone footage reveals social secrets of killer whales

Drone footage reveals social secrets of killer whales
2021-06-16
Killer whales have complex social structures including close "friendships", according to a new study that used drones to film the animals. The findings show that killer whales spend more time interacting with certain individuals in their pod, and tend to favour those of the same sex and similar age. The study, led by the University of Exeter and the Center for Whale Research (CWR), also found that the whales become less socially connected as they get older. "Until now, research on killer whale social networks has relied on seeing the whales when they surface, and recording which whales are together," said lead author Dr Michael Weiss, of the University of Exeter. "However, because resident killer whales stay in the social groups into which they're born, how closely related whales ...

Greater than the sum of our parts: The evolution of collective intelligence

2021-06-16
The period preceding the emergence of behaviourally modern humans was characterised by dramatic climatic and environmental variability - it is these pressures, occurring over hundreds of thousands of years that shaped human evolution. New research published today in the Cambridge Archaeological Journal proposes a new theory of human cognitive evolution entitled 'Complementary Cognition' which suggests that in adapting to dramatic environmental and climactic variabilities our ancestors evolved to specialise in different, but complementary, ways of thinking. ...

Enormous flock of declining shorebird discovered in South Carolina

Enormous flock of declining shorebird discovered in South Carolina
2021-06-16
CHARLESTON, S.C. (June 15, 2021) - It's not every day that someone discovers a new-to-science bird migration spectacle. It's even more unexpected that such an encounter - in this case, tens of thousands of shorebirds gathering during their annual journey north - would be just a stone's throw from a metropolitan area. But two years ago, that's exactly what happened in coastal South Carolina. In May 2019, South Carolina Department of Natural Resources (SCDNR) biologist Felicia Sanders and a team of researchers confirmed that approximately 20,000 whimbrel were roosting at night on a small island during their spring migration. The team documented similar numbers again in 2020. This single ...

Novel radiotracer shows promise to predict abdominal aortic aneurysm rupture

Novel radiotracer shows promise to predict abdominal aortic aneurysm rupture
2021-06-16
Reston, VA (Embargoed until 6:15 p.m. EDT, Tuesday, June 15, 2021)--A new positron emission tomography (PET) radiotracer can detect abdominal aortic aneurysms (AAAs) and potentially predict when they will rupture, according to research presented at the Society of Nuclear Medicine and Molecular Imaging 2021 Annual Meeting. Targeting a novel biomarker associated with AAA, the radiotracer is effective both in diagnosis and in providing information to assist in the development of AAA treatments, of which there currently are none. AAA is a life-threatening degenerative vascular disease. It occurs when blood vessels weaken and ...

Strict rest after sports-related concussion slows recovery and may prolong symptoms

2021-06-16
Persisting symptoms thought to be complex interplay between effects of new injury and underlying conditions Strict rest after a sports related concussion slows recovery and may prolong symptoms, says a consensus statement drawn up by a US expert panel on how best to treat and manage the condition, and published in the British Journal of Sports Medicine. Most of these concussions get better within a month and can be effectively treated, it says. Persisting symptoms are thought to be a complex interplay between the physical and psychological effects of the new injury and underlying conditions. The consensus statement was developed by the Team Physician Consensus Conference (TPCC), an annual project-based alliance of six major professional associations,* with the aim ...

Junk food diet may boost risk of dangerous driving among truck/lorry drivers

2021-06-16
A junk food diet may increase the risk of dangerous driving among truck/lorry drivers by boosting fatigue, which is often a key factor in vehicle collisions, suggests research published online in the journal Occupational & Environmental Medicine. Some 1.35 million people die in road traffic collisions every year, with professional drivers at greater risk because of the time they spend behind the wheel. There are several known contributory factors, among which gender, age, experience, driving skills and attitudes seem to be important, note the researchers. But lifestyle ...

Inkjet printing show promise as new strategy for making e-textiles, study finds

2021-06-16
In a new study, North Carolina State University researchers demonstrated they could print layers of electrically conductive ink on polyester fabric to make an e-textile that could be used in the design of future wearable devices. Since the printing method can be completed at room temperature and in normal atmospheric conditions, researchers believe inkjet printing could offer a simpler and more effective method of manufacturing electronic textiles, also known as e-textiles. In addition, researchers said the findings suggest they could extend techniques common in the flexible electronic industry to textile manufacturing. They reported their findings in the journal ACS Applied ...

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[Press-News.org] Glyphosate pesticides persist for years in wild plants and cause flower infertility
Researchers show for first time that commonly used herbicides can persist within wild forest plants for years, reducing fertility long-term and potentially also impacting pollinators