In 2018, Cornell researchers built a high-powered detector that, in combination with an algorithm-driven process called ptychography, set a world record by tripling the resolution of a state-of-the-art electron microscope.

Piping an oxygen-rich liquid into a pig's rectum can boost their blood oxygen, a step towards doing the same thing in people as a treatment to restore lung function

PLUS. En rapport for Miljøstyrelsen peger på, at kildesortering ikke giver bedre kvalitet i genanvendelsen af plast samt mad- og drikkekartoner end eftersortering.

Every American state has laws requiring vaccination . If you want your children to attend kindergarten, you must vaccinate them against rubella. Most parents comply because they don’t want anyone going deaf from congenital rubella. And if that isn’t convincing enough, then there is the ominous threat of having to homeschool. But these laws have holes , and more people are going through them. In t

Researchers at Brigham Young University have built a new analog-to-digital converter (ADC) — a tiny piece of technology present in almost every electronic piece of equipment that converts analog signals (like a radio wave) to a digital signal — with record-breaking power efficiency. The ADC consumes only 21 milli-Watts of power at 10GHz for ultra-wideband wireless communications.

Only two similar examples of world-changing equation known 1946 letter to physicist Ludwik Silberstein auctioned Related: Albert Einstein's 'God letter' reflecting on religion auctioned for $3m A handwritten letter by Albert Einstein that contains his famous E=mc 2 equation has sold at auction for more than $1.2m, about three times more than it was expected to get, a Boston-based auction house sa

Some farmers see a vicious pest that should be shot on sight, others a native species that plays a vital role in Australia’s ecosystem Read more of our Modern Outback series here Sign up for email notifications from our Modern Outback series By their own admission, John Knight and Caroline Thomas are blow-ins to the cattle country in South Australia’s far north. An Adelaide cardiac surgeon and a

Students lead nationwide demonstrations while academic leaders propose policy changes to help overcome the crisis

Otherworldly Tech New Mexico Senator Martin Heinrich recently joined the ranks of prominent public officials suggesting that there may actually be something otherworldly about all of the UFO and unexplained aerial phenomena (UAP) footage and reports being scrutinized by military and intelligence leaders. “I don’t know what it is, but any time you have legitimate pilots describing something that d

During the so-called Super Flower Blood Moon lunar eclipse, the face of the moon will turn a brick-red hue. Here's why.

Researchers analyzed camera trap data from across the continent to better understand how particular species of mammals respond to different types of human disturbance.

Throughout his career, the University of California, Berkeley, herpetologist named 144 species of salamanders.

The pandemic barely dented the financial outlook for some major networks, which continued to acquire weaker hospitals and ailing doctors’ practices. Critics worry consolidation leads to higher prices for medical care.

About Time Perseverance, NASA’s latest Mars rover, is gearing up to finally begin its long-awaited mission : gathering samples of Mars rocks and packaging them for a return journey to Earth, where they’ll be tested for signs of ancient microbial life, according to a video update tweeted from the Mars rover’s anthropomorphized Twitter account. “I’m preparing to collect Martian samples in the searc

Researchers report a rapid and sensitive testing method for COVID-19 biomarkers that amplifies the binding signal for a target biomarker and provides detection within one second.

A filter made from polymer nanothreads blew three kinds of commercial masks out of the water by capturing 99.9 percent of coronavirus aerosols in an experiment. The study compared the effectiveness of surgical and cotton masks, a neck gaiter, and electrospun nanofiber membranes. The cotton mask and neck gaiter only removed about 45 percent to 73 percent of the aerosols. The surgical mask did much

Earlier this week Nikole Hannah-Jones, the New York Times writer in charge of the 1619 Project, was denied a tenured professorship at the University of North Carolina’s journalism school. The faculty recommended her for a job, and a committee headed by a UNC trustee expressed doubts about her suitability. Other trustees reportedly said they would not approve her for tenure. The faculty countered

Iceberg Ahead A gigantic iceberg, roughly 70 times the size of Manhattan, has broken off from the Antarctic, in the process becoming the world’s largest iceberg, according to The European Space Agency (ESA). The gigantic slab of ice, 1,668 square miles in size, is now floating in the Weddell Sea south east of South America, and was spotted by the ESA’s Copernicus Sentinel-1, a land and sea monito

More than 15 months into the pandemic, the U.S. death toll from COVID-19 is nearing 600,000. But COVID-19 deaths may be underestimated by 20 percent, according to a new study.

A Harvard psychologist, he originally attributed personality traits to nurturing only. Then he concluded, We’re largely born this way.

If you were forced to switch to an at-home workout in 2020, you’re not alone. In fact, even prior to the pandemic, many people were choosing to build the perfect at-home gym so they could conveniently exercise around their busy schedules. However, since the start of the pandemic, 60-percent of Americans found they enjoyed working out at home so much, they have no plans to return to the gym… ever

Pandemic highlights for the past two weeks — Read more on ScientificAmerican.com

Ionization energy is one of the most important physicochemical parameters. It is defined in terms of the amount of energy required to rip an electron from an atom.

A new coronavirus test can get accurate results from a saliva sample in less than 30 minutes, researchers report. Many of the components of the hand-held device used in this technology can be 3D-printed, and the test can detect as little as one viral particle per 1-microliter drop of fluid.

Vaccines are turning the tide in the pandemic, but the risk of infection is still present. Instant at-home tests would help us return to normal, but current options aren't very accurate. A new discovery could help get reliable tests on the market.

The activity of many antibiotics depends on the initial density of cells used in bacterial growth inhibition assays. This phenomenon, termed the inoculum effect, can have important consequences for the therapeutic efficacy of the drugs, because bacterial loads vary by several orders of magnitude in clinically relevant infections. Antimicrobial peptides…

Spin glasses (SGs) are paradigmatic models for physical, computer science, biological, and social systems. The problem of studying the dynamics for SG models is nondetermistic polynomial-time (NP) hard; that is, no algorithm solves it in polynomial time. Here we implement the optical simulation of an SG, exploiting the N segments…

Tumors are often infiltrated by T lymphocytes recognizing either self- or mutated antigens but are generally inactive, although they often show signs of prior clonal expansion. Hypothesizing that this may be due to peripheral tolerance, we formulated nanoparticles containing innate immune stimulants that we found were sufficient to activate self-specific…

Pancreatic ductal adenocarcinoma (PDAC) is a lethal malignancy with limited treatment options. Although activating mutations of the KRAS GTPase are the predominant dependency present in >90% of PDAC patients, targeting KRAS mutants directly has been challenging in PDAC. Similarly, strategies targeting known KRAS downstream effectors have had limited clinical success…

Natural ecological communities are diverse, complex, and often surprisingly stable, but the mechanisms underlying their stability remain a theoretical enigma. Interactions such as competition and predation presumably structure communities, yet theory predicts that complex communities are stable only when species growth rates are mostly limited by intraspecific self-regulation rather than…

A widely held assumption on network dynamics is that similar components are more likely to exhibit similar behavior than dissimilar ones and that generic differences among them are necessarily detrimental to synchronization. Here, we show that this assumption does not generally hold in oscillator networks when communication delays are present….

In cardiomyocytes, NaV1.5 channels mediate initiation and fast propagation of action potentials. The Ca2+-binding protein calmodulin (CaM) serves as a de facto subunit of NaV1.5. Genetic studies and atomic structures suggest that this interaction is pathophysiologically critical, as human mutations within the NaV1.5 carboxy-terminus that disrupt CaM binding are linked…

ATP binding cassette (ABC) proteins typically function in active transport of solutes across membranes. The ABC core structure is composed of two transmembrane domains (TMD1 and TMD2) and two cytosolic nucleotide binding domains (NBD1 and NBD2). Some members of the C-subfamily of ABC (ABCC) proteins, including human multidrug resistance proteins…

Vital biological processes, such as trafficking, sensing, and motility, are facilitated by cellular lipid membranes, which interact mechanically with surrounding fluids. Such lipid membranes are only a few nanometers thick and composed of a liquid crystalline structure known as the lipid bilayer. Here, we introduce an active, noncontact, two-point microrheology…

Soft robotics requires materials that are capable of large deformation and amenable to actuation with external stimuli such as electric fields. Energy harvesting, biomedical devices, flexible electronics, and sensors are some other applications enabled by electroactive soft materials. The phenomenon of flexoelectricity is an enticing alternative that refers to the…

Plant disease outbreaks are increasing and threaten food security for the vulnerable in many areas of the world. Now a global human pandemic is threatening the health of millions on our planet. A stable, nutritious food supply will be needed to lift people out of poverty and improve health outcomes….

COVID-19, caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has become a global pandemic and has claimed over 2 million lives worldwide. Although the genetic sequences of SARS-CoV and SARS-CoV-2 have high homology, the clinical and pathological characteristics of COVID-19 differ significantly from those of SARS. How and whether…

If you were driving down the road in Sweden at 04:50 on September 3, 1967, the Swedish government required you to stop. You then had to move from the left to the right side of the road, and at 05:00 you could continue on your way. Although Sweden invested heavily…

UC San Diego School of Medicine researchers identify how the body regulates and prevents constant skin inflammation.

Researchers have successfully sequenced the entire genome from the skull of Pestera Muierii 1, a woman who lived in today's Romania 35,000 years ago. Her high genetic diversity shows that the out of Africa migration was not the great bottleneck in human development but rather this occurred during and after the most recent Ice Age.

New research shows that activation of distinct human endogenous retroviruses, which are part of our genome, impair brain development dramatically. The finding could help to advance research into therapies for neurodegenerative diseases.

It turns out that traveling in a passenger airplane could expose you to dangerous levels of cosmic radiation — under specific circumstances. A team of scientists from the University of Toulouse modeled existing flight plans and found that they would be exposed to the cosmic rays given off by particularly severe radiation storms, according to a research summary in Eos . The research shows that, gi

A pediatric infectious disease expert answers questions about whether the vaccine is safe, and why children need it — Read more on ScientificAmerican.com