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Rare COVID-19 response in children explained
One of the enduring mysteries of the COVID-19 pandemic is why most children tend to experience fewer symptoms than adults after infection with the coronavirus. The immune system response that occurs in the rare cases in which children experience life-threatening reactions after infection may offer an important insight, a Yale-led study published in the journal Immunity suggests.
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Omecamtiv Mecarbil brings greater benefits for severe heart failure
The experimental heart failure drug omecamtiv mecarbil reduced heart failure hospitalizations by a greater margin among patients with more severely reduced ejection fraction, a measure indicating severe impairment in the heart's pumping ability, compared with those who had moderately reduced ejection fraction, according to research presented at the American College of Cardiology's 70th Annual Scientific Session.
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Routine testing before surgery remains common despite low value
Before undergoing surgery, patients often go through a number of tests: blood work, sometimes a chest X-ray, perhaps tests to measure heart and lung function.In fact, about half of patients who had one of three common surgical procedures done in Michigan between 2015 and the midway point of 2019 received at least one routine test beforehand.Yet plenty of evidence suggests that preoperative testing is often unnecessary for low-risk surgeries.
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Mammals in the time of dinosaurs held each other back
Scientists discover that dinosaurs were not the main competition for mammals during the time of the dinosaurs, challenging previously held ideas about evolution.
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Warnings on the dangers of screen time are ill founded -- New study
University researchers have carried out the largest systematic review and meta-analysis to date of how people's perceptions of their screen time compare with what they do in practice, finding estimates of usage were only accurate in about five per cent of studies.
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'Sticky' speech and other evocative words may improve language
A new study published in the research journal Cognitive Science finds that iconicity in parents' speech helps children learn new words
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Comprehensive Mount Sinai study shows direct evidence that COVID-19 can infect cells in eye
Study Has Implications for Preventive Measures to Slow Spread of Virus
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Discovery of flowering gene in cacao may lead to accelerated breeding strategies
For the first time, Penn State researchers have identified a gene that controls flowering in cacao, a discovery that may help accelerate breeding efforts aimed at improving the disease-ridden plant, they suggested.
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Additional data, feedback on hospital care did not improve heart failure outcomes
A program designed to improve hospital care for patients with heart failure, the leading cause of hospitalization among adults over age 65, did not bring additional benefits beyond existing hospital quality improvement programs in a randomized controlled trial presented at the American College of Cardiology's 70th Annual Scientific Session.
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Shortcut for dendritic cells
During an inflammatory response, things need to happen quickly: ETH Zurich researchers have recently discovered that certain immune cells that function as security guards can use a shortcut to get from the tissue to lymph nodes.
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Researchers develop algorithm to see inside materials with subatomic particles
The University of Kent's School of Physical Sciences, in collaboration with the Science and Technology Facilities Council (STFC) and the Universities of Cardiff, Durham and Leeds, have developed an algorithm to train computers to analyse signals from subatomic particles embedded in advanced electronic materials.
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Lipid droplets help protect kidney cells from damage
Researchers at the Francis Crick Institute have found out how microscopic structures called lipid droplets may help to prevent a high-fat diet causing kidney damage. The work in fruit flies, published in PLoS Biology opens up a new research avenue for developing better treatments for chronic kidney disease.
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Sotagliflozin shows benefit for difficult-to-treat form of heart failure
Patients with both diabetes and heart failure who were treated with sotagliflozin, a novel investigational drug for diabetes, for a median of nine to 16 months experienced reductions of 22% to 43% in the risk of death or worsening heart failure compared with similar patients who were treated with a placebo, according to research presented at the American College of Cardiology's 70th Annual Scientific Session.
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New evidence of how and when the Milky Way came together
New research provides the best evidence to date into the timing of how our early Milky Way came together, including the merger with a key satellite galaxy.Using relatively new methods in astronomy, the researchers were able to identify the most precise ages currently possible for a sample of about a hundred red giant stars in the galaxy.
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Cells from the centre of tumours most likely to spread around the body
Researchers from the Francis Crick Institute, Royal Marsden, UCL and Cruces University Hospital have found that cells from different parts of kidney tumours behave differently, and surprisingly, cells within the centre of a tumour are the most aggressive and have the highest chance of spreading around the body.
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The perfect blend: Optimizing gas mixtures for hydrogen storage in clathrate hydrates
In a recent study, Dr. Park's group explored a feasible solution to the problem of using clathrate hydrates as vessels for H2 storage. However, the enclathration of pure H2 is still a slow process. To improve upon this strategy, the team set out to find the best hydrogen-natural gas blend (HNGB) for the energy-efficient formation of clathrate hydrates. They carefully analyzed the clathrate formation kinetics and structure and the distribution of trapped molecules.
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Anisotropic zoning in the upper crust of the Tianshan Tectonic Belt
Tianshan Tectonic Belt is a major seismic activity belt in the western part of the Chinese mainland. A recent study revealed the anisotropic zoning in the upper crust of the Tianshan tectonic belt, The polarization directions of the fast waves in most of the study area are consistent with the local tectonic stress fields, the time delays share an increasing trend from east to west in the NorthTianshan and South Tianshan Mountain ranges.
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Scientists explain why climate models can't reproduce the early-2000s global warming slowdown
The unexpected global warming slowdown during 1998-2013 challenges the simulation ability of climate models since most models participating in phase 5 of the Coupled Model Intercomparison Project (CMIP5) cannot simulate it. The CMIP6 with the most advanced climate models is now underway. Researchers evaluated the ability of the new-generation CMIP6 climate models on simulating the warming slowdown, and further revealed the reasons for the dilemma of slowdown simulation.
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Greenland becoming darker, warmer as its snow ages and changes shape
A reduction in the amount of fresh, light-colored snow in parts of Greenland is exposing older, darker snow. The research reports on new weather patterns and explains how the changing shape of snowflakes on the surface is leading to conditions on Greenland's ice sheet, including possibly increased melting.
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Scientists find new way of predicting COVID-19 vaccine efficacy
he early immune response in a person who has been vaccinated for COVID-19 can predict the level of protection they will have to the virus over time, according to analysis from Australian mathematicians, clinicians, and scientists, and published today in Nature Medicine.
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