Culture
Researchers at University of California San Diego School of Medicine used an artificial intelligence (AI) algorithm to sift through terabytes of gene expression data -- which genes are "on" or "off" during infection -- to look for shared patterns in patients with past pandemic viral infections, including SARS, MERS and swine flu.
For centuries, scientists, aeronautic designers and adventure-seekers have sought to replicate the qualities that allow birds to fly, namely wing-structure and balance. However, without an external mechanism such as a hot air balloon or airplane, humans have remained earth-bound, unable to use their own bodies to propel themselves into the stratosphere.
What The Study Did: Researchers examined the associations between Medicare Advantage star ratings, which are created using data from all enrollees in a plan, and disparities in care for racial/ethnic minorities and enrollees with lower income and less education.
Authors: David J. Meyers, Ph.D., M.P.H., of the Brown University School of Public Health in Providence, Rhode Island, is the corresponding author.
Reston, VA (Embargoed until 6:15 p.m. EDT, Friday, June 11, 2021)--An advanced artificial intelligence technique known as deep learning can predict major adverse cardiac events more accurately than current standard imaging protocols, according to research presented at the Society of Nuclear Medicine and Molecular Imaging 2021 Annual Meeting.
What The Study Did: Editorial team composition by gender, race, ethnicity and sexual orientation was assessed at 25 leading medical and scientific journals in this survey study.
Authors: James W. Salazar, M.D., M.A.S., of the University of California San Francisco, is the corresponding author.
To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/
(doi:10.1001/jamainternmed.2021.2363)
The Fenton reaction is a chemical transition involving hydrogen peroxide (H2O2) and the ferrous (iron) ion, which acts as a catalyst. This process is used to destroy hazardous contaminants in wastewater through oxidation. In the atmosphere, a similar reaction, or "Fenton-like" reaction, occurs continuously with ferric oxalate([Fe(III)(C2O4)3]3-) and aerosols suspended in the air. This is the most frequent chemical reaction that occurs in the atmosphere.
When is a weed not a weed?
Can native plants be weeds?
Sweet pittosporum (Pittosporum undulatum) was once a well-behaved tree growing in gullies from Gippsland in Victoria up to Brisbane in Queensland.
But it is now a major problem, leading to an almost complete suppression of native vegetation where it has invaded. Programs to clear it have successfully allowed indigenous plants to return, and within 15 years, with moderate follow up, treated sites are well on the way to successful restoration.
Astronomers from University of Warwick and University of Exeter modelling the future of unusual planetary system found a solar system of planets that will 'pinball' off one another
Today, the system consists of four massive planets locked in a perfect rhythm
Study shows that this perfect rhythm is likely to hold for 3 billion years - but the death of its sun will cause a chain reaction and set the interplanetary pinball game in motion
IPBES/IPCC: Tackling the biodiversity and climate crises together, and their combined social impacts
BONN, 10 June - Unprecedented changes in climate and biodiversity, driven by human activities, have combined and increasingly threaten nature, human lives, livelihoods and well-being around the world. Biodiversity loss and climate change are both driven by human economic activities and mutually reinforce each other. Neither will be successfully resolved unless both are tackled together.
This is the message of a workshop report, published today by 50 of the world's leading biodiversity and climate experts.
Curtin University researchers have helped uncover the four billion year old story of a lunar sample brought from the Moon to Earth, by the manned Apollo 17 mission more than 50 years ago.
The global research collaboration, involving scientists from the UK, Canada, Sweden and Australia, aimed to analyse the ancient rock sample through a modern lens to find out its age, which crater it came from and its geological trajectory.
Cell viability require that a variety of functions at the cell membrane are maintained properly. P-type ATPases translocate substrates across the membrane, and they have evolved into different types taking care of specific substrates within a diverse range. Now, key structural aspects have been described on how two different types of P-type ATPases - a Ca2+ transporting Ca2+ -ATPase and a lipid transporting P4-ATPase - have adapted to different substrates and physical environments.
Researchers from Tel Aviv University took part in a new international study proposing an amendment to the widely accepted theory on the extinction of animal species - by moving the focus from the animal's body size to its reproductive capacity. The researchers found gaps and incompatibilities between mammals and amphibians in the relation between body size and extinction risk: Whereas large mammals bear a smaller number of offspring per birth, leading to higher risk of extinction, larger amphibian females lay more eggs, reducing the threat to the species.
Even on a good day, DNA is constantly getting damaged.
Nicks, scratches, breaks: the delicate strands that carry life's genetic code take a beating as they jumble about in the course of their work. If left untreated, errors accumulate, with fatal consequences -- such as cancerous tumors -- for the cell and the organism.
This is where two key proteins come to the rescue: PARP -- or poly ADP ribose polymerase -- acts as a marker for a trouble spot, allowing XRCC1 -- or X-ray repair cross-complementing protein 1 -- to zoom in and begin a repair.
LA JOLLA--(June 10, 2021) In order for cancer to grow and spread, it has to evade detection by our immune cells, particularly specialized "killer" T cells. Salk researchers led by Professor Susan Kaech have found that the environment inside tumors (the tumor microenvironment) contains an abundance of oxidized fat molecules, which, when ingested by the killer T cells, suppresses their ability to kill cancer cells.
Scientists are hoping the RNA of an obscure infection can one day be used like a Trojan horse to deliver life-saving treatments to citrus trees.
The infection, citrus yellow vein disease, was discovered 64 years ago in Riverside and has never been seen elsewhere in the world. Decades later, UC Riverside researchers have finally unraveled the associated pathogen's genetic codes -- a significant step toward harnessing its unique properties.