807,524 articles

The chemical question: does focusing on hormones undermine mental healthcare?

According to some, not factoring hormone fluctuation into women’s mental healthcare can be dangerous. For others, it feeds into outdated stereotypes“It’s my hormones, doc. It’s my hormones, and no one’s listened to that.”It was the late 1980s, in what was once Royal Park Psychiatric Hospital in inner-city Melbourne. A brash young registrar doing her training in psychiatry had arrived...

US must export doses before waiving Covid vaccine patents, say EU leaders

Frustration expressed at what several leaders see as the US president’s attempt to claim the moral high groundCoronavirus – latest updatesSee all our coronavirus coverageEU leaders have given short shrift to a proposal by Joe Biden and backed by the pope to waive Covid-19 vaccine patents as a way to increase supply, insisting that the White House should instead allow the export of doses and...

Remains of nine Neanderthals found in cave south of Rome

Italian archaeologists believe most of Neanderthals were killed by hyenas then dragged back to denItalian archaeologists have unearthed the bones of nine Neanderthals who were allegedly hunted and mauled by hyenas in their den about 100km south-east of Rome.Scientists from the Archaeological Superintendency of Latina and the University of Tor Vergata in Rome said the remains belong to seven adult...

Scientists launch search for genetic test to spot killer prostate cancer

Gene-screening, as is used to detect some breast cancer risks, could save thousands of livesScientists have begun work to create a prostate cancer screening service for the UK. In a few years, middle-aged men could be tested to reveal their genetic susceptibility to the condition, with those deemed to be under significant threat of developing it being offered treatment or surgery.The service would...

Artificial intelligence makes great microscopes better than ever

Collaboration between deep learning experts and microscopy experts leads to an significantly improved data-intensive light-field microscopy method by using AI and ground-truthing it with light-sheet microscopy. The result is the power of light-field microscopy available to biologists in near real time vs. days or weeks, AND the expansion of biologists' ability to use this microscopy for many...

The legume family tree

The most comprehensive study of the family tree for legumes, the plant family that includes beans, soybeans, peanuts, and many other economically important crop plants, reveals a history of whole-genome duplications.

Ingenuity Mars helicopter completes first one-way trip

NASA's Ingenuity Mars Helicopter completed its fifth flight on the Red Planet today with its first one-way journey from Wright Brothers Field to an airfield 423 feet (129 meters) to the south. After arrival above its new airfield, Ingenuity climbed to an altitude record of 33 feet (10 meters) and captured high-resolution color images of its new neighborhood before touching down.

Chinese rocket’s chaotic fall to Earth highlights problem of space junk

China has played down fears that its Long March 5B rocket could hit a populated area or a plane in flight but there is no shortage of problem debris in orbitSometime this weekend the upper stage of a Chinese Long March 5B rocket will plunge back to Earth and most of it will burn up on re-entry – but perhaps not all.Military experts in the US expect the booster stage to come down on Saturday or...

Vegetarians have healthier levels of disease markers than meat-eaters

Vegetarians appear to have a healthier biomarker profile than meat-eaters, and this applies to adults of any age and weight, and is also unaffected by smoking and alcohol consumption, according to a new study in over 166,000 UK adults, being presented at this week's European Congress on Obesity (ECO), held online this year.


FRIDAY 7. MAY 2021


Massive molecular study uncovers clues to the evolution and diversification of essential plant family

The most comprehensive study of the family tree for legumes, the plant family that includes beans, soybeans, peanuts, and many other economically important crop plants, reveals a history of whole-genome duplications. The study also helps to uncover the evolution of genes involved in nitrogen fixation—a key trait likely important in the evolutionary spread and diversification of legumes and vital...

Study describes new mechanism for terminating transcription of DNA into RNA in bacteria

A bacterial protein helps to stop transcription—the process of making RNA copies of DNA to carry out the functions of the cell—by causing the cellular machinery that transcribes the DNA to pause at the appropriate spots in the genome. The protein, known as NusG, pauses the transcription machinery at specific DNA sequences to facilitate what is called "intrinsic termination" and prevent...

WHO approves first Chinese Covid vaccine for emergency use

Sinopharm jab will also be added to Covax programme for the developing world in the coming weeksThe World Health Organization has given emergency use approval to one of the Chinese-made Sinopharm’s Covid-19 vaccines in a major boost to the product’s credibility.The long-awaited decision made on Friday by a WHO technical advisory group would also see the Chinese vaccine being included in the...

Damage to white matter is linked to worse cognitive outcomes after brain injury

A new study challenges the idea that gray matter (the neurons that form the cerebral cortex) is more important than white matter (the myelin covered axons that physically connect neuronal regions) when it comes to cognitive health and function. The findings may help neurologists better predict the long-term effects of strokes and other forms of traumatic brain injury.

Soybean and linseed oils added to cows' diet improves the quality of milk

Inclusion of soybean and linseed oils in the diet of dairy cows made the fatty acid content of their milk even healthier for human nutrition. It also increased the proportions of omega-6 and omega-3, which in the right balance play a key role in preventing cardiovascular diseases, for example, as well as chronic inflammation and some kinds of cancer.

A Chinese rocket is falling back to Earth—but we don’t know where it will land

Last week, China successfully launched Tianhe-1, the first part of its new space station, to be completed before the end of 2022. A week later, the mission is still making huge waves—and not in a good way. The core booster from the Long March 5B rocket that launched Tianhe-1 ended up in an uncontrolled orbit around Earth. It is expected to fall back to Earth this weekend, with current...

Perseverance Mars rover captures video, audio of fourth Ingenuity flight

For the first time, a spacecraft on another planet has recorded the sounds of a separate spacecraft. NASA's Perseverance Mars rover used one of its two microphones to listen as the Ingenuity helicopter flew for the fourth time on April 30, 2021. A new video combines footage of the solar-powered helicopter taken by Perseverance's Mastcam-Z imager with audio from a microphone belonging to the...

Breaching the blood-brain barrier to deliver precious payloads

RNA-based drugs may change the standard of care for many diseases, making personalized medicine a reality. So far these cost-effective, easy-to-manufacture drugs haven't been very useful in treating brain tumors and other brain disease. But a team has shown that a combination of ultrasound and RNA-loaded nanoparticles can temporarily open the protective blood-brain barrier, allowing the delivery...

Discovery of huge Raman scattering at atomic point contact

Nanofabrication of electronic devices has reached a single nanometer scale (10-9 m). The rapid advancement of nanoscience and nanotechnology now requires atomic-scale optical spectroscopy in order to characterize atomistic structures that will affect the properties and functions of the electronic devices.