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Gamma-ray laser moves a step closer to reality
A physicist at the University of California, Riverside, has performed calculations showing hollow spherical bubbles filled with a gas of positronium atoms are stable in liquid helium.
7h ago phys.org
Electronic map reveals 'rules of the road' in superconductor
Using a clever technique that causes unruly crystals of iron selenide to snap into alignment, physicists have drawn a road map that reveals the quantum ''rules of the road'' that electrons must follow in the enigmatic superconductor.
7h ago sciencedaily.com
Reassessment of Alzheimer's Drug Raises Hope--and Concerns
Will the benefits of aducanumab be enough to justify FDA approval, given its small benefit and high price? -- Read more on ScientificAmerican.com
8h ago scientificamerican.com
Electronic map reveals 'rules of the road' in superconductor
Using a clever technique that causes unruly crystals of iron selenide to snap into alignment, Rice University physicists have drawn a detailed map that reveals the "rules of the road" for electrons both in normal conditions and in the critical moments just before the material transforms into a superconductor.
9h ago phys.org
Nanocontainer ships titan-size gene therapies and drugs into cells
Scientists at Johns Hopkins Medicine report they have created a tiny, nanosize container that can slip inside cells and deliver protein-based medicines and gene therapies of any size—even hefty ones attached to the gene-editing tool called CRISPR. If their creation—constructed of a biodegradable polymer—passes more laboratory testing, it could offer a way to efficiently ferry larger medical compounds into specifically selected target cells.
9h ago phys.org
Researchers add order to polymer gels
Gel-like materials have a wide range of applications, especially in chemistry and medicine. However, their usefulness is sometimes limited by their inherent random and disordered nature. Researchers from the University of Tokyo's Institute for Solid State Physics have found a way to produce a new kind of gel which overcomes this limitation. It is still malleable and adaptable like existing gels, but it has a more ordered structure, which can open up a new range of possible uses in various fields.
9h ago phys.org
Philippines floods force 66,000 from homes
The Philippines' north has been hit by some of its worst flooding in decades, with torrents of muddy runoff forcing 66,000 from their homes and prompting rescues of trapped locals, authorities said Friday.
9h ago phys.org
Bacteria, fungus combo can help crops fight salty conditions
Researchers at Florida International University have found coating seeds with a fungus and a bacterium could help valuable crops block the one-two punch of saltier groundwater and soil.
9h ago phys.org
EU bans controversial pesticide
A controversial pesticide linked to developmental problems in humans will be definitively banned in the EU in 2020 after a vote on Friday by member states, the European Commission said.
9h ago phys.org
Team finds link between vitamin A and brain response in Monarch butterflies
Biologists at Texas A&M University are making strides in understanding biological clock function in several model organisms and translating these studies into broader implications for human health.
9h ago phys.org
Novel way to ID disease-resistance genes in chocolate-producing trees found
Chocolate-producing cacao trees that are resistant to a major pathogen were identified by an international team of plant geneticists. The findings point the way for plant breeders to develop trees that are tolerant of the disease.
9h ago phys.org
Discovery of a new protein gives insight into a long-standing plant immunity mystery
When a plant senses an invading pathogen, it activates a molecular signaling cascade that switch on its defense mechanisms. One such mechanism involves sacrificing host cells to the pathogen. This is a tightly controlled process that involves the work of plant proteins to ensure that the sacrificial cells are only killed if the pathogen is attacking. This process, called the cell death response, ensures that only a few host cells die.
9h ago phys.org
Simple experiment explains magnetic resonance
Physicists have designed an experiment to explain the concept of magnetic resonance. A versatile technique employed in chemistry, physics, and materials research, magnetic resonance describes a resonant excitation of electron or atomic nuclei spins residing in a magnetic field by means of electromagnetic waves.
9h ago sciencedaily.com
Scientists have spotted new compounds with herbicidal potential from sea fungus
Scientists at the Far Eastern Federal University (FEFU) and the G.B. Elyakov Pacific Institute of Bioorganic Chemistry (FEB RAS) together with German colleagues spotted six new and three already known biologically active compounds in a new strain of the fungus Penicillium piltunensein the first time it has been isolated. One compound has a pronounced anti-inflammatory activity, others have herbicidal potential, i.e., they can possibly become components of new chemicals for weed control. A related study is published in Marine Drugs.
9h ago phys.org
Barriers to reintegration lead to poorer health for the formerly incarcerated
Formerly incarcerated individuals with barriers to re-entry and service needs following their release are subsequently more likely to experience poor physical and mental health, according to an eye-opening new Rutgers University-Camden study.
10h ago phys.org
Pioneering research gives fresh insight into one of the pivotal building blocks of life
The quest to better understand how genomic information is read has taken a new step forward, thanks to pioneering new research.
10h ago phys.org
Dial-a-frog: Researchers develop the 'FrogPhone' to remotely call frogs in the wild
Researchers have developed the 'FrogPhone', a novel device which allows scientists to call up a frog survey site and monitor them in the wild. The FrogPhone is the world's first solar-powered remote survey device that relays environmental data to the observer via text messages, whilst conducting real-time remote acoustic surveys over the phone. These findings are presented in the British Ecological Society Journal Methods in Ecology and Evolution today.
10h ago phys.org
Animated videos advance adoption of agriculture techniques
In remote areas with low literacy rates, showing animated videos in the local language demonstrating agricultural techniques results in high retention and adoption rates of those techniques, found researchers from Michigan State University.
10h ago phys.org
Island 'soundscapes' show potential for evaluating recovery of nesting seabirds
Nocturnal seabirds nesting on remote islands can be extremely difficult to study. An increasingly important tool for monitoring these populations involves acoustic sensors deployed in the field to record sounds over long periods of time. But analysis of the resulting recordings to identify and count the calls of different species can be time-consuming, even with computers and artificial intelligence.
10h ago phys.org
Using a molecular motor to switch the preference of anion-binding catalysts
Many organic molecules are chiral, which means that they are non-superimposable on their mirror image. Those mirror images are called enantiomers and can have different properties when interacting with other chiral entities, for example, biomolecules. Selectively producing the right enantiomer is therefore important in, for example, pharmaceuticals. University of Groningen chemists Ruth Dorel and Ben Feringa have now devised a method that not only achieves this but that also controls which version is being produced using light. The results were published online by the journal Angewandte Chemie on November 17.
10h ago phys.org
How saving the ozone layer in 1987 slowed global warming
The Montreal Protocol, an international agreement signed in 1987 to stop chlorofluorocarbons (CFCs) destroying the ozone layer, now appears to be the first international treaty to successfully slow the rate of global warming.
10h ago phys.org
Genetic typing of a bacterium with biotechnological potential
Pseudomonas putida is a bacterium occuring in soil, aquatic environments and plants. Although the virulence of Pseudomonas p.—the ability of the bacterium to infect its host and inflict a disease—is considered to be low, infection in severely ill patients can be lethal. P. putida strains (also called isolates) have been found in hospitals, e.g. in urine, blood or wound discharge from patients, and such clinical isolates have been found to display resistance to drugs. Now, Kohei Ogura from Kanazawa University and colleagues have performed gene sequencing for various P. putida isolates originating from both environmental and clinical sites.
10h ago phys.org
Huge waves and disease turn Marshall Islands into 'war zone,' health official says
The level of alarm is already high in the Republic of the Marshall Islands, as the Pacific island nation struggles with rising sea levels and the after-effects of decades of U.S. nuclear testing on its atolls.
10h ago phys.org
How do you cultivate a healthy plant microbiome?
Scientists are homing in on what a healthy human microbiome looks like, mapping the normal bacteria that live in and on the healthy human body. But what about a healthy plant microbiome?
10h ago phys.org
Discovery of genes involved in the biosynthesis of antidepressant
St. John's Wort (Hypericum perforatum) is an ancient medicinal plant. It is known for the mild antidepressant properties of its bioactive compound hypericin, which is produced in the dark glands of the plant. By investigating the flowers of St. John's Wort, researchers identified genes involved in dark gland development and the biosynthesis of hypericin. The findings were published in the Plant Biotechnology Journal.
10h ago phys.org
Surface effects affect the distribution of hydrogen in metals
The researchers from Peter the Great St.Petersburg Polytechnic University (SPbPU) and Institute of Problems of Mechanical Engineering of the Russian Academy of Sciences studied the distribution of hydrogen in metals in the process of standard testing for hydrogen cracking. They found that there is a surface effect that does not let hydrogen enter the metal. This can result in errors in industrial quality control of material, and to fundamental errors in terms of scientific research of hydrogen embrittlement. The finding was published in International Journal of Continuum Mechanics and Thermodynamics.
10h ago phys.org
Move over Jules Verne: Scientists deploy ocean floats to peer into Earth's interior
The release of more than 50 floating sensors, called Mobile Earthquake Recording in Marine Areas by Independent Divers (MERMAIDs), is increasing the number of seismic stations around the planet. Scientists will use the floating array to clarify the picture of the massive mantel plume in the lower mantel lying below the South Pacific Ocean. This effort will also establish one of the most comprehensive overviews of seismic activity across the globe.
10h ago phys.org
Reduced soil tilling helps both soils and yields
Agriculture degrades over 24 million acres of fertile soil every year, raising concerns about meeting the rising global demand for food. But a simple farming practice born from the 1930's Dust Bowl could provide a solution, according to new Stanford research. The study, published Dec. 6 in Environmental Research Letters, shows that Midwest farmers who reduced how much they overturned the soil—known as tilling—increased corn and soybean yields while also nurturing healthier soils and lowering production costs.
11h ago phys.org
Stormquakes: Powerful storms cause seafloor tremors
Stormquakes are a recently discovered phenomenon characterized by seismic activity originating at the ocean floor due to powerful storms.
11h ago phys.org
Fish scattering sound waves has impact on aquaculture
Schools of fish can scatter sound waves, which has impacts on fish farming. Fisheries acoustics have been studied for over 40 years to assess biomass and optimize aquaculture applications.
11h ago phys.org
Buyer beware of this $1 million gene therapy for aging
Offshore tests by a startup seek to lengthen people’s telomeres—and their lives.
11h ago technologyreview.com
Can a Big Oil Company Go Carbon-Free?
Spanish oil giant Repsol SA this week announced one of the more ambitious emissions reduction efforts in the industry -- Read more on ScientificAmerican.com
11h ago scientificamerican.com
Hire more LGBTQ and disabled astronomers or risk falling behind, review finds
Ensuring research opportunities for indigenous, disabled and LGBTQ astronomers is essential if Australian research is to succeed in the new era of "mega-telescopes", a major analysis has found.
12h ago phys.org
Astronomy fellowship demonstrates measures to dismantle bias, increase diversity in STEM
In 2017, the Heising-Simons Foundation—a family foundation that works in climate and clean energy, science, education, and human rights—established the 51 Pegasi b Fellowship to support early-career astronomers engaged in planetary research. Just over a year later, the Foundation announced that it would overhaul the selection process for the program because, out of 12 fellowships awarded in the program's first two years, only two—one each year—went to female scientists.
12h ago phys.org
What's Shaking in Oklahoma?
Mysterious seismic signals lead to some scientific detective work -- Read more on ScientificAmerican.com
12h ago blogs.scientificamerican.com
National greenhouse gas reporting needs an overhaul: It's time to directly measure the atmosphere
How much greenhouse gas is emitted by any individual country? With global emissions of carbon dioxide hitting a record of 36.8 billion tonnes this year, and delegates gathering in Madrid for the latest UN climate talks, it's a pressing question.
13h ago phys.org
Improved pH probes may help toward cancer treatments
Nanopipettes with zwitterionic membranes may offer improved monitoring of changes in pH surrounding living cells, which can indicate traits of invasive cancer cells and their response to treatment, report researchers at Kanazawa University in Nature Communications.
13h ago phys.org
A new view for glasses
Researchers at the University of Tokyo introduced a new physical model that predicts the dynamics of glassy materials based solely on their local degree of atomic structural order. Using computer simulations, they showed how this theory greatly improves the understanding of how glassy liquids become more viscous on cooling. This work has many potential applications in manufacturing, especially for special glass production in labware and electronic touchscreen devices.
13h ago phys.org
Three studies describe different parts of the 2018 Kīlauea caldera collapse
Three separate teams working independently have learned more about what happens during a slow-moving volcanic caldera collapse by studying the 2018 Kīlauea eruption in Hawaii. Each has published their findings in the journal Science. Freysteinn Sigmundsson with the University of Iceland has published a companion piece in the same journal issue giving an overview of caldera collapse, and outlining the work by the three teams.
13h ago phys.org
Has physics ever been deterministic?
Researchers from the Austrian Academy of Sciences, the University of Vienna and the University of Geneva, have proposed a new interpretation of classical physics without real numbers. This new study challenges the traditional view of classical physics as deterministic.
13h ago phys.org
Image: Mato Grosso, Brazil
The Copernicus Sentinel-1 mission takes us over part of the Brazilian state of Mato Grosso deep in the Amazon interior.
13h ago phys.org
Optical switch illuminates cell development
Combining light and a protein linked to cancer, researchers at Princeton University have created a biological switch to conduct an unprecedented exploration of cellular development in the embryo.
13h ago phys.org
Novel bioprinter shows potential to speed tissue engineering
The dream of tissue engineering is a computer-controlled manufacturing of complex and functional human tissue for potential organ regeneration or replacement.
14h ago phys.org
'Conductor' gene found in plant root stem cell 'orchestra'
Researchers lift the veil on the 'conductor' plant root stem cell gene that helps orchestrate and coordinate stem cell division of different root stem cell types, ensuring the harmonic communication necessary for plant growth and maintenance.
14h ago sciencedaily.com
Research: A country's degree of gender equality can affect men's ability to recognize famous female faces
Our ability to recognize faces is a complex interplay of neurobiology, environment and contextual cues.
14h ago phys.org
Study shows first signs of cross-talk between RNA surveillance and silencing systems
A recent study by a team of scientists in Korea reveals new findings about how various systems involved in cellular surveillance interact. This research is the first to identify a "cross-talk" molecule between these systems. Because these pathways are involved in fighting toxic cellular or foreign substances, the study has various potential applications in antiviral development, gene therapy, and agriculture.
14h ago phys.org
Seahorse breeding project aims to recover endangered species from near extinction
Following a dramatic decline in numbers over the past decade, White's seahorse, also known as the Sydney seahorse, has recently been listed as an endangered species in NSW. It is now Australia's only threatened seahorse species and the second endangered seahorse species worldwide.
14h ago phys.org
Reparations for slavery and genocide should be used to address health inequities
As soon as I entered Elmina Castle (the dungeons) in Cape Coast in Ghana, I felt haunted by over 400 years of brutality and the enslavement and genocide of millions of African and Indigenous peoples. That violence still impacts the health of Black and Indigenous folks today.
14h ago phys.org
Machine vision that sees things more the way we do is easier for us to understand
14h ago technologyreview.com
Cuneiform reveals shared birthplace
Assyriologists in Leiden have been conducting research into ancient clay tablets from the Middle East for 100 years already. What exactly do these clay tablets tell us? And why is Leiden such a good place to study them?
14h ago phys.org
Research suggests that hibernation is a likely option to make deep space exploration a reality
Space travelers sleeping in hibernation chambers before continuing with their missions, whether to go on a trip to Jupiter or hunt down an extraterrestrial creature. The concept was first imagined in the 20th century before making its way to the big screen. Are these images getting hauntingly prophetic?
14h ago phys.org
3 Problems with High-Intensity Interval Training
The allure of short, intense workouts is obvious. But is High-Intensity Interval Training (HIIT) really the only workout you need for good overall fitness? -- Read more on ScientificAmerican.com
14h ago scientificamerican.com
Research reveals past rapid Antarctic ice loss due to ocean warming
New research from the University of Otago has found the sensitive West Antarctic Ice Sheet collapsed during a warming period just over a million years ago when atmospheric carbon dioxide levels were lower than today.
14h ago phys.org
How a bacteria digests a sugar can be key to new treatments
The severity of a common and often lethal type of bacteria depends on its ability to process a type of sugar, research from the University of Adelaide reveals.
14h ago phys.org
The genome and transcriptome of the parasitic plant Striga sequenced
The genome of the parasitic plant Striga, commonly known as witchweed, has been sequenced for the first time by RIKEN plant geneticists. This genetic analysis both offers insights into how parasitic plants evolved and a tool for improving the monitoring and control of the costly weed.
14h ago phys.org
A 6,000-year-old fruit fly gave the world modern cheeses and yogurts
Historians often trace the dawn of human civilization back 10,000 years, when Neolithic tribes first settled and began farming in the Fertile Crescent, which stretches through much of what we now call the Middle East. Prehistoric peoples domesticated plants to create the cereal crops we still grow today, and in the Zagros mountains of Iran, Iraq and Turkey, sheep, goats and cows were bred from their wild relatives to ensure a steady supply of meat and milk. But around the same time as plants and animals were tamed for agriculture, long before anyone even knew of microscopic life, early humans were domesticating microbes too.
14h ago phys.org
How a Flawed Experiment "Proved" That Free Will Doesn't Exist
It did no such thing—but the result has become conventional wisdom nevertheless -- Read more on ScientificAmerican.com
17h ago blogs.scientificamerican.com
Physics Technique Reveals Hidden Bugs to Bats  
Bats’ hunting angle of approach cuts through the noise -- Read more on ScientificAmerican.com
17h ago scientificamerican.com
Emails outside working hours: Are they against employment law?
It is common for many employees to send, read and reply to work emails at all hours of the day and night, including weekends. This change in work culture developed in recent decades and has accelerated with the advent of smartphones. But is this a breach of employment law? The short answer is that "it depends" and we need some test cases to clarify the situation, not least in the UK.
18h ago phys.org
Large-scale education tests often come with side effects
When results come out for big education tests like the Programme for International Student Assessment (PISA), which primarily measures 15-year-old students' knowledge and skills in reading, mathematics and science, the focus is often on which countries scored the highest.
18h ago phys.org
Life of a foam
A fine coffee froth does not last forever. The bubbles that make the milk light and creamy are eventually torn apart by the pull of gravity. But there is a place where foams have a more stable life—in the weightless environment of the International Space Station, bubbles don't burst so quickly and foams remain wet for longer.
18h ago phys.org
Water metering can reduce consumption by a fifth, but only high-income households gain financially
New research has indicated that water consumption can be reduced by more than 20 percent, significantly more than current policy targets following the installation of meters. Whilst this shows that overall benefits of water metering outweigh the costs, the researchers also found that high income households benefit financially by switching to a metered tariff despite reducing their consumption by considerably less than lower income households.
18h ago phys.org
The Coastal Communities Network – a force for nature
At Fauna & Flora International (FFI) we strongly believe that the people best placed to protect biodiversity—and the resources it provides—are those who live closest to it. That's why we put particular emphasis on supporting in-country organizations and investing in their capacity for conservation. Our work with coastal communities is no exception.
18h ago phys.org
Breakthrough in battle against invasive plants
Plants that can "bounce back" after disturbances like plowing, flooding or drought are the most likely to be "invasive" if they're moved to new parts of the world, scientists say.
18h ago phys.org
New tool for rapidly analyzing CRISPR edits reveals frequent production of unintended edits
Amidst rising hopes for using CRISPR gene editing tools to repair deadly mutations linked to conditions like cystic fibrosis and sickle cell disease, a study in Communications Biology describes a new innovation that could accelerate this work by rapidly revealing unintended and potentially harmful changes introduced by a gene editing process.
18h ago phys.org
Smart simulations chart the behavior of surprising structures
AMOLF researchers are studying three-dimensional prismatic structures that can assume different shapes with the aim of producing metamaterials that have multiple properties. Researchers have found a new way to simulate the deformations in such structures, and in doing so, they discovered a wide range of unexpected shapes. The results will be published today in the scientific journal Nature Communications.
18h ago phys.org
Why kids don’t trust Alexa
We tend to think of children as blindly trusting of whatever information comes their way. They’re not.
19h ago technologyreview.com
Why some scientists want to rewrite the history of how we learned to walk
It's not often that a fossil truly rewrites human evolution, but the recent discovery of an ancient extinct ape has some scientists very excited. According to its discoverers, Danuvius guggenmosi combines some human-like features with others that look like those of living chimpanzees. They suggest that it would have had an entirely distinct way of moving that combined upright walking with swinging from branches. And they claim that this probably makes it similar to the last shared ancestor of humans and chimps.
19h ago phys.org
China's failed gene-edited baby experiment proves we're not ready for human embryo modification
More than a year ago, the world was shocked by Chinese biophysicist He Jiankui's attempt to use CRISPR technology to modify human embryos and make them resistant to HIV, which led to the birth of twins Lulu and Nana.
19h ago phys.org
We're using lasers and toaster-sized satellites to beam information faster through space
Satellites are becoming increasingly important in our lives, as they help us meet a demand for more data, exchanged at higher speeds. This is why we are exploring new ways of improving satellite communication.
19h ago phys.org
Leaders of nonprofits that use sport to better society often lack business skills
While the number of nonprofits promoting sport as a tool for empowerment and social justice has increased significantly over the past two decades, many of these organizations fail—their efforts to change the world stymied by leadership deficits and stakeholder skepticism, a new study suggests.
19h ago phys.org
Finding time for play
Before I step into the classroom, I hear children's voices and feel the energy these five- and six-year-olds radiate. Once inside, I see bins of materials strewn about—a scene of organized chaos. The bins are full of toys, blocks, interactive cards, game pieces and other materials meant to develop the children's fine motor skills and enhance their engagement with words and numbers. Some children cluster in pairs or threes, while others work on their own to solve puzzles, sequence symbols and explore.
19h ago phys.org
Gaining insight into the energy balance of earthquakes
Researchers at EPFL's Computational Solid Mechanics Laboratory and the Weizmann Institute of Science have modeled the onset of slip between two bodies in frictional contact. Their work, a major step forward in the study of frictional rupture, could give us a better understanding of earthquakes—including how far and fast they travel.
19h ago phys.org
Exciplex emission observed over much longer distances than previously thought possible
Light-emitting exciplex complexes can form over far greater distances than ever suspected, a RIKEN-led team has shown. This discovery could lead to highly sensitive sensors and photodetectors.
19h ago phys.org
SpaceX Dragon heads to space station with NASA science
A SpaceX Dragon cargo spacecraft is on its way to the International Space Station after launching at 12:29 p.m. EST today (Dec. 5). Dragon will deliver more than 5,700 pounds of NASA cargo and science investigations, including studies of malting barley in microgravity, the spread of fire, and bone and muscle loss.
19h ago phys.org
Simple experiment explains magnetic resonance
Physicists at University of California, Riverside, have designed an experiment to explain the concept of magnetic resonance. The project was carried out by undergraduate students in collaboration with local high school teachers.
19h ago phys.org
Understanding the impact of deep-sea mining
Resting atop Thomas Peacock's desk is an ordinary-looking brown rock. Roughly the size of a potato, it has been at the center of decades of debate. Known as a polymetallic nodule, it spent 10 million years sitting on the deep seabed, 15,000 feet below sea level. The nodule contains nickel, cobalt, copper, and manganese—four minerals that are essential in energy storage.
19h ago phys.org
35-year data record charts sea-temperature change
Four trillion satellite measurements, taken over four decades from 1981 to 2018, have been merged to create a continuous global record that will help to understand the science behind Earth's climate.
19h ago phys.org
Nanocontainers for targeted drug delivery
RUDN University bioengineers have created magnetic nanocontainers for smart delivery of drugs to the desired organs or tissues, which reduces the risk of side effects. An experiment on mice determined that the nanocontainers are non-toxic. The results of the study are published in the journal Polymers.
19h ago phys.org
The surprising individuality of microRNAs
In order for the instructions contained within a gene to ultimately execute some function in the body, the nucleotides, or letters, that make up the gene's DNA sequence must be "read" and used to produce a messenger RNA (mRNA). This mRNA must then be translated into a functional protein. A number of different pathways within the cell influence this essential biological process, informing whether, when, and to what extent a gene is expressed. A major class of such regulators are microRNAs (miRNAs). These minute RNAs—they are, on average, 22 nucleotides long—join with a protein called Argonaute to cause certain mRNAs to be degraded, which in turn decreases the amount of translation of those mRNAs into their functional protein forms. Scientists have identified hundreds of miRNAs that are common amongst mammals and other vertebrate animals, and most mammalian mRNAs are targeted by at least one of these miRNAs—an indication of their pervasive importance to our biology. Accurately predicting how any particular miRNA will affect gene expression in a cell is important for understanding our own biology, and might facilitate the design of therapeutic drugs that affect or utilize miRNAs, but the complexity of the miRNA pathway makes this sort of prediction difficult.
19h ago phys.org
A new way to make quadratic equations easy
Many former algebra students have painful memories of struggling to memorize the quadratic formula. A new way to derive it, overlooked for 4,000 years, is so simple it eliminates the need.
20h ago technologyreview.com
Russian supply ship lifts off to International Space Station
An automatic Russian supply ship carrying tons of supplies successfully blasted off Friday heading for the International Space Station.
21h ago phys.org
Young people take to the streets for climate: Who are they?
Last year a 15-year old girl in pigtails decided to walk out of her classroom and sit on the steps of Sweden's parliament every Friday with a homemade sign: "School Strike For Climate".
21h ago phys.org
Weak Arctic ice sees 56 polar bears descend on Russian village
More than 50 polar bears have gathered on the edge of a village in Russia's far north, environmentalists and residents said, as weak Arctic ice leaves them unable to roam.
21h ago phys.org
'Conductor' gene found in plant root stem cell 'orchestra'
In a new paper, researchers at North Carolina State University lift the veil on the "conductor" plant root stem cell gene that helps orchestrate and coordinate stem cell division of different root stem cell types, ensuring the harmonic communication necessary for plant growth and maintenance.
21h ago phys.org
'Junk DNA' affects inherited cancer risk
A person's risk of developing cancer is affected by genetic variations in regions of DNA that don't code for proteins, previously dismissed as 'junk DNA', according to new research. This new study shows that inherited cancer risk is not only affected by mutations in key cancer genes - known as oncogenes and tumor suppressor genes - but that variations in the DNA that controls the expression of these genes can also drive the disease.
1d ago sciencedaily.com
Study says warming world could devastate fisheries, reefs
A study commissioned by 14 seafaring nations predicts that unchecked climate change could devastate fishery industries and coral reef tourism, causing hundreds of billions of dollars in losses by 2050.
1d ago phys.org
US tweaks restrictions on 'cyanide bomb' anti-predator devices
The US announced slightly stricter rules Thursday on the use of devices called "cyanide bombs," which are meant to protect livestock from wild predators, after the government reinstated their use in August.
1d ago phys.org
Tick box questionnaire could significantly improve esophageal cancer survival rates
A simple health questionnaire could be a highly effective tool to pre-screen people for early signs of esophageal cancer, enabling much earlier diagnosis and treatment, finds a new study.
1d ago sciencedaily.com
BPA levels in humans dramatically underestimated
Researchers have developed a more accurate method of measuring bispehnol A (BPA) levels in humans and found that exposure to the endocrine-disrupting chemical is far higher than previously assumed. The study provides the first evidence that the measurements relied upon by regulatory agencies, including the US Food and Drug Administration, are flawed, underestimating exposure levels by as much as 44 times.
1d ago sciencedaily.com
A US genome company is ceasing operations over China concerns
1d ago technologyreview.com
Fishy Trick Lures Life Back to Coral Reefs
Playing the sounds of a healthy reef near damaged corals may help bring the fish community back. Christopher Intagliata reports. -- Read more on ScientificAmerican.com
1d ago flex.acast.com
Study seeks to answer whether effects of 'abortion pill' can be reversed
Women who initiate medical abortion but opt to stop in the middle of treatment may be at risk for serious blood loss, a study finds. Researchers found this is true even for women who use an experimental treatment that claims to 'reverse' the effects of the abortion pill. The study provides important insights into the safety of using high doses of progesterone during early pregnancy to try to stop a medical abortion.
1d ago sciencedaily.com
Assistance during first years of biology major leads to higher retention of first-gen students
Assistance during the first years of a biology major leads to higher retention of first-generation students.
1d ago sciencedaily.com
As China rapidly adopts clean energy, use of traditional stoves persists
Old habits are hard to break. A new study of replacement of traditional wood and coal burning stoves with clean energy in China suggests that, without a better understanding of the reasons behind people's reluctance to give up traditional stoves, it will be difficult for policies in China and elsewhere in the world to succeed in encouraging this shift towards clean energy.
1d ago sciencedaily.com
Artificial cells act more like the real thing
Protocells -- artificial cells -- that are active and mimic living cells by moving independently and that are biocompatible and enzymatically active are now possible using an improved method.
1d ago sciencedaily.com
'Buildings' in human bone may hold key to stronger 3D-printed lightweight structures
The discovery of how a 'beam' in human bone material handles a lifetime's worth of wear and tear could translate to the development of 3D-printed lightweight materials that last long enough for more practical use in buildings, aircraft and other structures.
1d ago sciencedaily.com
Open source EEG visualization tool
Researchers have developed a free open source computer program that can be used to create visual and quantitative representations of brain electrical activity in laboratory animals in hopes of developing countermeasures for opioid use disorder.
1d ago sciencedaily.com
NASA's OSIRIS-REx mission explains Asteroid Bennu's mysterious particle events
Shortly after NASA's OSIRIS-REx spacecraft arrived at asteroid Bennu, an unexpected discovery by the mission's science team revealed that the asteroid could be active, or consistently discharging particles into space.
1d ago sciencedaily.com
Developing a digital twin of a vehicle
In the not too distant future, we can expect to see our skies filled with unmanned aerial vehicles delivering packages, maybe even people, from location to location. Researchers are developing 'digital twins' that combine computational models and machine learning to predict vehicle health and enable autonomous decision-making at the edge.
1d ago sciencedaily.com
Recycling nutrient-rich industrial waste products enhances soil, reduces carbon
Recycling biotechnology byproducts can enhance soil health while reducing carbon emissions and maintaining crop yields.
1d ago sciencedaily.com
Behavioral interventions may be as effective at reducing food intake as anorectic drugs
Simulations predict that behavioral interventions such as imposing strict no-food restrictions after meals can be as effective as strong anorectic drugs in reducing food intake in rodents, according to a study.
1d ago sciencedaily.com
Rats exchange information about danger in a reciprocal fashion
Rats exchange information about danger in a reciprocal fashion, and this information transfer is at least partially mediated by a brain region called the anterior cingulate cortex.
1d ago sciencedaily.com
Mobile devices blur work and personal privacy raising cyber risks
Organizations aren't moving quickly enough on cyber security threats linked to the drive toward using personal mobile devices in the workplace.
1d ago sciencedaily.com
Newly engineered peptide shows potential as long-acting anti-HIV drug
A newly engineered peptide called IBP-CP24 has the potential to be further developed as a long-acting anti-HIV drug that can be used alone or in combination with a broad neutralizing antibody for the treatment and prevention of HIV-1 infection, according to a new study.
1d ago sciencedaily.com
Dull teeth, long skulls, specialized bites evolved in unrelated plant-eating dinosaurs
Herbivorous dinosaurs evolved many times during the 180 million-year Mesozoic era, and while they didn't all evolve to chew, swallow, and digest their food in the same way, a few specific strategies appeared time and time again. An investigation of the skulls of 160 non-avian dinosaurs revealed the evolution of common traits in the skulls and teeth of plant-eating members of otherwise very different families of these extinct reptiles.
1d ago sciencedaily.com
Nervous system doesn't merely detect Salmonella, it defends the body against it
Study in mice shows the nervous system not only detects the presence of Salmonella in the gut but actively stops the organism from infecting the body.
1d ago sciencedaily.com
Clinical study finds eating within 10-hour window may help stave off diabetes, heart disease
Researchers have found that a 10-hour time-restricted eating intervention, when combined with traditional medications, resulted in weight loss, reduced abdominal fat, lower blood pressure and cholesterol for participants. The pilot study could lead to a new treatment option for metabolic syndrome patients who are at risk for developing life-altering and costly medical conditions such as diabetes.
1d ago sciencedaily.com
Bats may benefit from wildfire
Bats face many threats -- from habitat loss and climate change to emerging diseases, such as white-nose syndrome. But it appears that wildfire is not among those threats.
1d ago sciencedaily.com
A blockchain expert is accused of helping North Korea’s leaders. But what would they want from him?
The North Korean regime appears to see cryptocurrency as a shortcut to economic development.
1d ago technologyreview.com
SpaceX launches beer malt, caring robot and 'mighty mice'
SpaceX launched a 3-ton shipment to the International Space Station on Thursday, including "mighty mice" for a muscle study, a robot sensitive to astronauts' emotions and a miniature version of a brewery's malt house.
1d ago phys.org
A Tiny Leak Led to a Massive, Unexpected Collapse at Kilauea Volcano
Its caldera’s dramatic, surprisingly slow collapse could point to other risks worldwide -- Read more on ScientificAmerican.com
1d ago scientificamerican.com
Physical forces affect bacteria's toxin resistance, study finds
A random conversation between two Cornell researchers at a child's birthday party led to a collaboration and new understanding of how bacteria resist toxins, which may lead to new tools in the fight against harmful infections.
1d ago phys.org
Can Arctic 'ice management' combat climate change?
According to a much-debated geo-engineering approach, both sea-ice retreat and global warming could be slowed by using millions of wind-powered pumps, drifting in the sea ice, to promote ice formation during the Arctic winter.
1d ago sciencedaily.com
How flowers adapt to their pollinators
The first flowering plants originated more than 140 million years ago in the early Cretaceous. They are the most diverse plant group on Earth with more than 300,000 species. Evolutionary biologists have now analyzed 3-dimensional models of flowers and found that flower shapes can evolve in a modular manner in adaptation to distinct pollinators.
1d ago sciencedaily.com
Damaging rains from hurricanes more intense after winds begin to subside
Howling wind drives torrential rain sideways as tall, slender palms bow and tree limbs snap. A hurricane approaches, its gale-force winds wreaking havoc as it nears the coast. Storm surges combine with the downpour, inundating the area with water.
1d ago sciencedaily.com
This is the first image of an asteroid as it chucks debris off into space
1d ago technologyreview.com
Now Hear This: New Fossils Reveal Early Ear-Bone Evolution
A change in chewing led to the emergence of the mammalian middle ear -- Read more on ScientificAmerican.com
1d ago scientificamerican.com
Graphene takes off in composites for planes and cars
The Graphene Flagship brought together top European researchers and companies to discuss the most disruptive ways graphene could enhance composites used in the aerospace, automotive and energy industries. The multidisciplinary team involved researchers from academic institutions, business enterprises such as Graphene Flagship Partners Nanesa and Avanzare, and large transportation end-user industries, such as Graphene Flagship Partners Airbus and Fiat. They showed that integrating graphene and related materials (GRMs) into fibre-reinforced composites (FRCs) has great potential to improve weight and strength, and helps to overcome the bottlenecks limiting the applications of these composites in planes, cars, wind turbines and more. Nowadays, the transportation industry is responsible for nearly one-third of global energy demand, and it is the major source of pollution and greenhouse gas emissions in urban areas. Graphene Flagship scientists are therefore continually trying to develop new materials to lower fuel usage and CO2 emissions, helping to mitigate environmental damage and climate change.
1d ago phys.org
California must act now to prepare for sea level rise, state lawmakers say
A special committee of California lawmakers gathered Tuesday, for the first time in five years, to discuss sea level rise and what the state needs to do to better prepare coastal communities from devastating loss.
1d ago phys.org
Climate Models Got It Right on Global Warming
Even models in the 1970s accurately predicted the relationship between greenhouse gas emissions and temperature rise -- Read more on ScientificAmerican.com
1d ago scientificamerican.com
Squid pigments have antimicrobial properties
Ommochromes, the pigments that colour the skin of squids and other invertebrates, could be used in the food and health sectors for their antioxidant and antimicrobial properties. This is confirmed by analyses carried out by researchers from the University of Sonora in Mexico and the Miguel Hernández University in Spain.
1d ago phys.org
Multiple correlations between brain complexity and locomotion pattern in vertebrates
Researchers at the Institute of Biotechnology, University of Helsinki, have uncovered multi-level relationships between locomotion—the ways animals move—and brain architecture, using high-definition 3-D models of lizard and snake brains.
1d ago phys.org
Mice in space: NASA's latest experiment
Scientists are sending mighty mice to space, but rather than being gym rats, their strength was enhanced through genetic experimentation in the hopes of preventing human astronauts from experiencing muscle loss in microgravity.
1d ago phys.org
Brown bananas and squishy avocados no more? Food tech could keep your produce from going bad
Imagine bananas that never go bad. To Aidan Mouat, CEO of Chicago-based Hazel Technologies, it's not so far-fetched.
1d ago phys.org
Researchers develop method to improve skeleton of common chemicals
Every chemical, from the simplest to the most complex, have a structural skeleton of atoms. The atoms can be added or removed to transform the chemical into different types, for use in different applications. For many pharmaceutical and agricultural chemicals, the skeleton consists of a multi-membered carbon ring called a carbocycle.
1d ago phys.org