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Less wastage during production of marble slabs in the Roman imperial period than today
Researchers discovered that the material loss during marble slab production was likely lower in the Roman imperial period than it is today.
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Ecology-inspired mathematical models to understand social networks
UOC researchers have analysed interaction patterns on Twitter based on interaction between users and hashtags and competition for attention.
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Where on Earth is all the water?
High-temperature and high-pressure experiments involving a diamond anvil and chemicals to simulate the core of the young Earth demonstrate for the first time that hydrogen can bond strongly with iron in extreme conditions. This explains the presence of significant amounts of hydrogen in the Earth's core that arrived as water from bombardments billions of years ago.
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Hanging by a thread: Imaging and probing chains of single atoms
Low-dimensional materials, such as 1D monoatomic chains, exhibit exotic properties that could find interesting applications. However, single-atom bonds and their mechanical characteristics are difficult to study. In a recent study, scientists from JAIST, Japan, showcase a novel method to simultaneously image monoatomic platinum chains with a transmission electron microscope while measuring their bond strength and conductance during mechanical stretching. This technique will help answer many questions in the fields of nanomechanics and surface science.
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The chemistry of magnesium turned on its head
The international scientific community agrees that the latest findings of an FAU research team will revolutionise the entire chemistry of magnesium. The research team have discovered magnesium, which usually has a double positive charge in chemical compounds, in the elemental zero-oxidation state. They have published their ground-breaking findings in the journal Nature.
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Researchers observe new complexity of traveling brain waves in memory circuits
Researchers at UC San Francisco have observed a new feature of neural activity in the hippocampus - the brain's memory hub - that may explain how this vital brain region combines a diverse range of inputs into a multi-layered memories that can later be recalled.
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New screening method could lead to microbe-based replacements for chemical pesticides
Some nonpathogenic microorganisms can stimulate plant immune responses without damaging the plants, which allows them to act like plant vaccines, but screening microorganisms for such properties has traditionally been time-consuming and expensive. Now, a team of scientists from Tokyo University of Science has developed a screening method based on cultured plant cells that makes such testing easier. This may lead to microorganism-based crop protection methods that reduce the need for chemical pesticides.
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Which animals will survive climate change?
Climate change is exacerbating problems like habitat loss and temperatures swings that have already pushed many animal species to the brink. But can scientists predict which animals will be able to adapt and survive? Using genome sequencing, researchers from McGill University show that some fish, like the threespine stickleback, can adapt very rapidly to extreme seasonal changes. Their findings could help scientists forecast the evolutionary future of these populations.
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Interim study suggests oral TXA is equally effective in preventing blood loss in joint replacement
Interim results of a study conducted by researchers at Hospital for Special Surgery (HSS) suggest that oral tranexamic acid (TXA) is non-inferior to intravenous (IV) TXA in preventing blood loss in total knee and total hip replacement surgery. These findings were presented at the 2021 Spring American Society of Regional Anesthesia and Pain Medicine (ASRA) Annual Meeting.
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Study of hip fracture patient characteristics and outcomes pre- and post-COVID-19 outbreak
Researchers at Hospital for Special Surgery (HSS) sought to compare characteristics and outcomes of hip fracture patients admitted during the COVID-19 outbreak to patients admitted before the outbreak. They also examined characteristics and outcomes of hip fracture patients with and without the virus. Their findings were presented at the 2021 Spring American Society of Regional Anesthesia and Pain Medicine (ASRA) Annual Meeting.
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The eyes offer a window into Alzheimer's disease
While it has been said that the eyes are a window to the soul, a new study shows they could be a means for understanding diseases of the brain. According to new research by scientists at the UCSF Weill Institute for Neurosciences, retinal scans can detect key changes in blood vessels that may provide an early sign of Alzheimer's, while offering important insights into how one of the most common Alzheimer's risk genes contributes to the disease.
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Genes associated with COVID-19 risk identified
Having genetic risk variants in the ABO gene might significantly increase the chances of developing COVID-19, and other genes may also increase COVID-19 risk, according to research presented at the ATS 2021 International Conference.
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Teens, adults who use E-cigarettes have increased odds of asthma, asthma attacks
While vaping is thought to be a safer alternative to smoking, teens and adults who use e-cigarettes have increased odds of developing asthma and having asthma attacks, according to research presented at the ATS 2021 International Conference.
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Living in redlined areas associated with lower lung function in those with asthma
Individuals with asthma who live in redlined neighborhoods have worse lung function than those in locales that excluded Black people and benefited from decades of inequitable wealth accumulation at the expense of Black communities in the United States, according to research presented at the ATS 2021 International Conference.
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E-cigarettes associated with wheezing, shortness of breath
The use of e-cigarettes is associated with wheezing and shortness of breath in young adults and adolescents, even in those who don't smoke cigarettes or marijuana, according to research presented at the ATS 2021 International Conference.
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Herbivores developed powerful jaws to digest tougher plants after the mass extinctions
The evolution of herbivores is linked to the plants that survived and adapted after the 'great dying', when over 90% of the world's species were wiped out 252 million years ago.
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New immunotherapy 'highly effective' against hepatitis B
Scientists at UCL have identified a new immunotherapy to combat the hepatitis B virus (HBV), the most common cause of liver cancer in the world.
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Researchers develop 3D-printed jelly
3D-printable gels with improved and highly controlled properties can be created by merging micro- and nano-sized networks of the same materials harnessed from seaweed. The findings could have applications in biomedical materials - think of biological scaffolds for growing cells - and soft robotics.
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How moths find their flame - genetics of mate attraction discovered
Biologists have revealed for the first time the genetics linking pheromone signals produced by female moths and the neuronal response driving male attraction to females. The ability to predict mate choice will help in understanding how species diverge, and how to control agricultural pests.
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Health outcomes differ between UK and US children with cystic fibrosis
A new study led by University of Liverpool researchers has confirmed that children with cystic fibrosis (CF) in the US have better lung function than UK children with the disease. The study suggests that differences do not appear to be explained by early growth or nutrition, but could be linked to differences in the use of early treatments.
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