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phys.org

Saturday, Oct 5

22

Trees' own beneficial microbiome could lead to discovery of new treatments to fight citrus greening disease

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Citrus trees showing natural tolerance to citrus greening disease host bacteria that produce novel antimicrobials that can be used to fight off the disease, our recent study shows. We found the trees at an organic farm in Clermont, Florida.

19

Nuclear rockets could travel to Mars in half the time, but designing the reactors that would power them isn't easy

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NASA plans to send crewed missions to Mars over the next decade—but the 140 million-mile (225 million-kilometer) journey to the red planet could take several months to years round trip.

18

Limestone and iron reveal puzzling extreme rain in Western Australia 100,000 years ago

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Almost one-sixth of Earth's land surface is covered in otherworldly landscapes with a name that may also be unfamiliar: karst. These landscapes are like natural sculpture parks, with dramatic terrain dotted with caves and towers of bedrock…

17

Study of global primate populations reveals predictors of extinction risk

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An international team of biologists, planetary scientists and conservationists has conducted a large-scale study of non-human primate populations around the world to gauge their risk of extinction due to climate change.

15

Large radio bubble detected in galaxy NGC 4217

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An international team of astronomers has performed radio observations of a star-forming galaxy known as NGC 4217. The observational campaign detected a large radio bubble in the galaxy's halo. The finding was reported in a paper published…

Using AI to figure out the chemical composition of paints used in classical paintings

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A team of chemists and AI researchers at CNR, Istituto di Scienze del Patrimonio Culturale, has developed an AI model capable of determining the chemical composition of the paints used to make classical paintings.

12

Supreme Court lets stand rules to curb mercury, methane emissions

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The US Supreme Court declined on Friday to block environmental regulations aimed at reducing harmful emissions of mercury from power plants and methane from oil and gas facilities.

Field notes: Life in the Eldorado National Forest after wildfire strikes

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Charred trees punctuated the Eldorado National Forest like blackened skeletons of their former selves, victims of the Mosquito Fire. Two years earlier, in 2022, the Mosquito Fire started in Tahoe National Forest, moved north to the…

Nepalis fear more floods as climate change melts glaciers

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Mingma Rita Sherpa was not home when the muddy torrent roared into his village in Nepal without warning, but when he returned, he did not recognize his once beautiful settlement.

Friday, Oct 4

22

Phage cocktail shows promise against drug-resistant bacteria

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Researchers have a new battle tactic to fight drug-resistant bacterial infections. Their strategy involves using collections of bacteriophages, viruses that naturally attack bacteria. In a new study, researchers at the University of…

21

Survey experiment reveals celebrities and politicians could be the 'missing link' to mitigate climate change

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Psychologists from Cardiff University have uncovered new insights into the role of celebrities and politicians in influencing public opinion on low-carbon lifestyles. The paper is published in the journal Humanities and Social Sciences…

How passion drives or derails team innovation

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In companies, innovative ideas often come out of teams. That's why it's so important to have team members who are excited and focused on projects that lead to innovation. However, having team members who are too passionate—especially to…

Researchers reveal key mechanism in regulating DNA recombination

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Meiotic recombination generates genetic diversity and promotes proper chromosomal segregation of parental chromosomes. This process requires a set of recombinases polymerized on single-stranded (ss) DNAs called the nucleoprotein filament…

20

The sun unleashes its strongest flare this cycle

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Yesterday the sun released a huge solar flare, and it's heading toward Earth. It's nothing to worry about since it's nowhere near as large as the Carrington Event of 1859, but it is large enough to give us some amazing aurora.

Capturing finer-scale topographic differences improves Earth system model capability to reproduce observations

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Earth system models (ESMs), used in climate simulations and projections, typically use grids of 50–200 km resolution. These are considered relatively coarse with limited ability to resolve land surface variability.

What's the best material for a lunar tower?

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Physical infrastructure on the moon will be critical to any long-term human presence there as both America and China gear up for a sustained human lunar presence. Increasingly, a self-deploying tower is one of the most essential parts of…

Victims of state scandals harmed further by compensation schemes

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Researchers from King's College London say that victims of state scandals feel let down and dissatisfied with current compensation schemes which have "exacerbated the harm already suffered."

Study: Job embeddedness impacts voluntary turnover in the midst of job insecurity

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During the Great Resignation, the United States experienced a significant uptick in voluntary employee resignations about one year into the COVID-19 pandemic. The early stages of the pandemic, however, were plagued by high unemployment. In…

Low stream diatom biodiversity potentially decreases stream oxygen production in remote islands

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Benthic diatoms are the most important and biodiverse primary producers in streams and comprise the basis for the food webs, fueling animals such as insects and stream fishes including trout.

Researchers investigate changes in atmospheric CO₂ levels between glacial and interglacial climates

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Paleoclimate scientists are trying to understand the causes of the ~90 parts per million (ppmv) atmospheric CO2 swings between glacial and interglacial climates. Even though these cycles between cold and warm periods seem to follow a…

Gravitational lens confirms the Hubble tension

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We've known the universe is expanding for a long time. The first solid paper demonstrating cosmic expansion was published by Edwin Hubble in 1929, based on observations made by Vesto Slipher, Milton Humason, and Henrietta Leavitt.

Best way to stay in the loop? Know people from other social circles

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Do close friends or casual acquaintances help you stay the most informed? Contrary to a long-standing social science theory, new research from Michigan State University suggests that having people in your life who expose you to other…

Coral reef snapper feeling impacts of marine heat waves on Great Barrier Reef

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The fate of a popular fish found on the Great Barrier Reef could be in jeopardy, with a new James Cook University study highlighting the impact of marine heat waves on the Spanish Flag Snapper.

Research sheds light on impact and bias of voter purging in Michigan

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In recent years, some states have prioritized purging their voter rolls of those who have passed away or moved out of state. During election season, there is often increased discussion about the necessity and impact of these actions. Voter…

19

Political parties in South America relied on will of the people to implement major economic reforms, analysis shows

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The success and legacy of major economic reforms in Ecuador and El Salvador has depended on the will of the people, analysis shows. The strength of political party ideology and support of unions, workers and the financial sector has hugely…

Innovative method targets removal of PFAS from wastewater

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Researchers at Oxford Brookes University have pioneered an innovative method to tackle one of the world's most persistent environmental threats—toxic chemicals in global water supplies.

Solar flares may cause faint auroras across top of Northern Hemisphere

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Solar storms may cause faint northern lights across fringes of the northern United States over the weekend as forecasters monitor for possible disruptions to power and communications.

Consumers' support for trade and immigration declines, small change on higher taxes for wealthy

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American consumers view the economic impact of both trade and immigration more critically now than in 2020, according to the University of Michigan Surveys of Consumers.

Better monitoring of mining remediation: Selenium isotopes are good gauge of clean-up efforts

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A new testing technique developed using synchrotron light could significantly improve how we monitor the effectiveness of remediation practices for removing selenium contamination from mining activities.

Experienced and powerful boards are needed to harness the power of overconfident CEOs for innovations

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C-suites are filled with strong personalities that can help drive new and exciting offerings. But when it comes to breakthrough technological innovations, a new study published in Strategic Management Journal found it's essential that CEO…