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Antibody but not T-cell response after first dose of Pfizer COVID-19 vaccine is weakened in patients receiving methotrexate
A new study presented at this year's European Congress of Clinical Microbiology & Infectious Diseases (ECCMID) and published in The Lancet Rheumatology, shows that the antibody - but not the T-cell - response to the first dose of the Pfizer COVID-19 vaccine is weakened in patients taking the immunosuppressant methotrexate.
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Longest known continuous record of the Paleozoic discovered in Yukon wilderness
Stanford-led expeditions to a remote area of Yukon, Canada, have uncovered a 120-million-year-long geological record of a time when land plants and complex animals first evolved and ocean oxygen levels began to approach those in the modern world.
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Ecologists compare accuracy of lidar technologies for monitoring forest vegetation
Andrew Sánchez Meador led a study recently published in Remote Sensing, "Adjudicating Perspectives on Forest Structure: How Do Airborne, Terrestrial, and Mobile Lidar-Derived Estimates Compare?." The study compared vegetation attributes at multiple scales derived from piloted airborne (ALS), fixed-location terrestrial (TLS) and mobile lidar scanning (MLS) to see how these tools might be used to provide detailed information on forest structure and composition.
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Obscuring the truth can promote cooperation
Obscuring the truth can promote cooperation, according to new research by theoretical biologists from the University of Pennsylvania. Inspired by the example of the file-sharing platform Napster, they show that overstating the level of cooperation in a community can push the community to cooperate more overall.
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FEWSION: Creating more resilient supply chains through nature-inspired design
A new paper in Nature lays out the way natural ecosystems parallel U.S. supply chains and how American cities can use these tools to strengthen their supply chains.
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Many nonprofits, companies report using commercial species in tree planting projects
A new study in the journal Biological Conservation provides a detailed look at what restoration organizations across the tropics are actually doing on the ground.
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Our genes shape our gut bacteria, new research shows
In the study, published recently in Science, researchers discovered that most bacteria in the gut microbiome are heritable after looking at more than 16,000 gut microbiome profiles collected over 14 years from a long-studied population of baboons in Kenya's Amboseli National Park.
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The pressure is off and high temperature superconductivity remains
Using a new pressure quenching (PQ) technique at high temperatures to induce superconductivity in iron selenide (FeSe) crystals, superconductivity was achieved by Paul Chu and team at the Texas Center for Superconductivity at the University of Houston - and sustained without pressure.
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Remotely-piloted sailboats monitor 'cold pools' in tropical environments
Researchers used remotely-piloted sailboats to gather data on cold air pools, or pockets of cooler air that form when rain evaporates below tropical storm clouds. These hard-to-study phenomena are thought to have broader effects on tropical weather.
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First study of nickelate's magnetism finds a strong kinship with cuprate superconductors
Are new nickelate superconductors close kin to the original high-temperature superconductors, the cuprates? The first study of their magnetic properties says the answer is yes. Scientists from SLAC, Stanford and Diamond Light Source found important similarities but also subtle differences between the two.
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Imaging test may predict patients most at risk of some heart complications from COVID-19
Researchers at Johns Hopkins Medicine have shown that a type of echocardiogram, a common test to evaluate whether a person's heart is pumping properly, may be useful in predicting which patients with COVID-19 are most at risk of developing atrial fibrillation -- an irregular heartbeat that can increase a person's risk for heart failure and stroke, among other heart issues.
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Study: How a large cat deity helps people to share space with leopards in India
A new study led by WCS-India documents how a big cat deity worshipped by Indigenous Peoples facilitates coexistence between humans and leopards.
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When resistance is futile, new paper advises RAD range of conservation options
New paper by federal, state and academic researchers from across the United States offers guiding principles for deciding whether to resist, accept or direct ecosystem changes like sea-level rise, desertification and lake warming.
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Biomaterial vaccines ward off broad range of bacterial infections and septic shock
Researchers at Harvard's Wyss Institute and John A. Paulson School for Engineering and Applied Sciences (SEAS) have developed a biomaterial-based infection vaccine (ciVAX) approach as a solution that could be broadly applied to challenges in infection medicine.
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Regular rapid testing detects COVID-19 soon enough to stop transmission in schools
Proactive, frequent rapid testing of all students for COVID-19 is more effective at preventing large transmission clusters in schools than measures that are only initiated when someone develops symptoms and then tests positive, Simon Fraser University researchers have found.
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Researchers study anxiety differences between females and males
Feeling anxious about health, family or money is normal for most people--especially during the COVID-19 pandemic. But for those with anxiety disorders, these everyday worries tend to heighten even when there is little or no reason to be concerned.
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Can leukemia in children with Down syndrome be prevented?
For the first time, Princess Margaret researchers have mapped out where and how leukemia begins and develops in infants with Down syndrome in preclinical models, paving the way to potentially prevent this cancer in the future.
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Model predicts when rivers that cross faults will change course
As tectonic plates slip past each other, the rivers that cross fault lines change shape. The shifting ground stretches the river channels until the water breaks its course and flows onto new paths. In a study published July 9 in Science, researchers at UC Santa Cruz created a model that helps predict this process. It provides broad context to how rivers and faults interact to shape the nearby topography.
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LHAASO's measurement of Crab Nebula brightness yields new UHE gamma-ray standard
The Large High Altitude Air Shower Observatory (LHAASO) has accurately measured the brightness over 3.5 orders of magnitude of the standard candle in high-energy astronomy, thus calibrating a new standard for ultra-high-energy (UHE) gamma-ray sources. The standard candle is the famous Crab Nebula, which evolved from the "guest star" recorded by the imperial astronomers of China's Song Dynasty.
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Ulnar collateral ligament injury in gymnasts can be successfully treated
In a small study of gymnasts with ulnar (elbow) collateral ligament injury, orthopedic sports medicine researchers found that the athletes can be treated successfully and can return to competition. The research was presented at the American Orthopedic Medicine Society- Arthroscopy Association of North America Combined 2021 Annual Meeting.
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