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 2021-07-23 15:00 

Phys.org

New measure of tropical forest vulnerability to help avoid 'tipping point'...

Humid tropical forests, vital in global efforts to limit rising temperatures, are under threat as a result of changes in land use and climate. Now, researchers reporting in the journal One Earth on July 23 have developed a new way to keep tabs on the vuln...

 2021-07-23 14:40 

Phys.org

Autonomous self-healing seen in piezoelectric molecular crystals...

A team of researchers from the Indian Institute of Science Education and Research in Kolkata, the Indian Institute of Technology Kharagpur and RWTH Aachen University, has found a type of piezoelectric molecular crystal that is capable of autonomous self-h...

 2021-07-23 14:31 

Phys.org

New composite material has potential for medical use...

University of Georgia researchers have developed a new material with properties ideal for medical products such as masks and bandages. It's also better for the environment than the materials in current use....

 2021-07-23 14:24 

Phys.org

A device that cracks milk protein...

After gaining world attention by 'unboiling' egg protein, Flinders University scientists have now used an Australian-made novel thin film microfluidic device to manipulate Beta-lactoglobulin (-lactoglobulin), the major whey protein in cow, sheep a...

 2021-07-23 14:22 

Phys.org

Exploring topology in biology...

When can we say that a certain property of a system is robust? Intuitively, robustness implies that, even under the effect of external perturbations on the system, no matter how strong or random, said property remains unchanged. In mathematics, properties...

 2021-07-23 14:22 

Phys.org

Water resources: Defusing conflict, promoting cooperation...

Rivers are lifelines for many countries. They create valuable ecosystems, provide drinking water for people and raw water for agriculture and industry. In the Global South in particular, there is strong competition for access to freshwater resources. The ...

 2021-07-23 14:00 

Phys.org

Hunting for TB's most vulnerable genes...

Developing drugs to combat tuberculosis, or TB, can be frustrating business. A gene essential to the bacteria's lifecycle is discovered, scientists rush to develop drugs that inhibit the target, and then—disappointment. Volleys of compounds hurl...

 2021-07-23 13:59 

Phys.org

Bacteria navigate on surfaces using a 'sense of touch'...

Many disease-causing bacteria such as Pseudomonas aeruginosa crawl on surfaces through a walk-like motility known as "twitching." Nanometers-wide filaments called type IV pili are known to power twitching, but scientists ignore which sensory signa...

 2021-07-23 13:59 

Phys.org

Planetary nebulae in distant galaxies...

Using data from the MUSE instrument, researchers at the Leibniz Institute for Astrophysics Potsdam (AIP) succeeded in detecting extremely faint planetary nebulae in distant galaxies. The method used, a filter algorithm in image data processing, opens up n...

 2021-07-23 13:55 

Phys.org

Researchers discover that protein switches functions to regulate DNA replication...

One protein. One mechanism of action. Two biologically opposite effects....

 2021-07-23 13:55 

Phys.org

The impact of climate change on Kenya's Tana river basin...

Many species within Kenya's Tana River Basin will be unable to survive if global temperatures continue to rise as they are on track to do—according to new research from the University of East Anglia....

 2021-07-23 13:55 

Phys.org

Reverse optogenetic tool developed...

A new optogenetic tool, a protein that can be controlled by light, has been characterized by researchers at Ruhr-Universitt Bochum (RUB). They used an opsin—a protein that occurs in the brain and eyes—from zebrafish and introduced it into the ...

 2021-07-23 13:53 

Phys.org

A new theory to explain the transparency of metallic oxides...

The electrons of some metal oxides, due to their large effective mass when coupled with the ionic lattice of the material, cannot follow the electric field of light and allow it to pass through the material. Transparent and conductive materials are used i...

 2021-07-23 13:30 

Phys.org

A curvy and shape-adaptive imager based on printed optoelectronic pixels...

Curved imagers that can adjust their shape could have many valuable applications, for instance, aiding the development of more advanced medical imaging tools and cameras. Most existing flexible curvy imagers, however, are either not compatible with tunabl...

 2021-07-23 13:10 

Phys.org

Scientists identify five new plant species in Bolivia...

Scientists have identified five new plant species in the Bolivian Andes....

 2021-07-23 12:40 

Phys.org

Scientists seek better understanding of Earth's atmospheric chemistry by studying Mars...

Long-term studies of ozone and water vapor in the atmosphere of Mars could lead to better understanding of atmospheric chemistry for the Earth. A new analysis of data from ESA's Mars Express mission has revealed that our knowledge of the way these atm...

 2021-07-23 12:32 

Phys.org

How a sudden stratospheric warming affected the Northern Hemisphere...

Weather is a tricky science—even more so at very high altitudes, with a mix of plasma and neutral particles....

 2021-07-23 12:12 

Phys.org

Beetroot dye helps biologists 'track and trace' symbiotic fungi for sustainable farming...

Almost all crop plants form associations with a particular type of fungi—called arbuscular mycorrhiza fungi—in the soil, which greatly expand their root surface area. This mutually beneficial interaction boosts the plant's ability to take ...

 2021-07-23 09:18 

Phys.org

Buzz about thermoelectrics heats up with promising new magnesium-based materials...

The landing of NASA's Perseverance rover was another leap forward not only for space exploration but also for the technology that's powering the craft on its years-long mission on Mars—a thermoelectric generator that turns heat into electric...

 2021-07-23 07:57 

Phys.org

Meet the Martian meteorite hunters...

A team at the Natural History Museum (NHM), London is paving the way for future rovers to search for meteorites on Mars. The scientists are using the NHM's extensive meteorite collection to test the spectral instruments destined for the ExoMars rover ...

 2021-07-23 07:56 

Phys.org

Martian global dust storm ended winter early in the south...

A dust storm that engulfed Mars in 2018 destroyed a vortex of cold air around the planet's south pole and brought an early spring to the hemisphere. By contrast, the storm caused only minor distortions to the polar vortex in the northern hemisphere an...

 2021-07-22 20:56 

Phys.org

Early-life social connections influence gene expression, stress resilience...

Having friends may not only be good for the health of your social life, but also for your actual health—if you're a hyena, that is. Strong social connections and greater maternal care early in life can influence molecular markers related to gene...

 2021-07-22 20:56 

Phys.org

Big data-derived tool facilitates closer monitoring of recovery from natural disasters...

By analyzing peoples' visitation patterns to essential establishments like pharmacies, religious centers and grocery stores during Hurricane Harvey, researchers at Texas A&M University have developed a framework to assess the recovery of communities a...

 2021-07-22 20:51 

Phys.org

New tests can detect tiny but toxic particles of coal ash in soil...

Scientists at Duke University have developed a suite of four new tests that can be used to detect coal ash contamination in soil with unprecedented sensitivity....

 2021-07-22 20:51 

Phys.org

Surrey builds AI to find anti-ageing chemical compounds...

The University of Surrey has built an artificial intelligence (AI) model that identifies chemical compounds that promote healthy aging—paving the way towards pharmaceutical innovations that extend a person's lifespan....

 2021-07-22 20:46 

Phys.org

Cattle losing adaptations to environmental stressors, researchers find...

As a fourth-generation cattle farmer, Jared Decker knows that cattle suffer from health and productivity issues when they are taken from one environment—which the herd has spent generations adapting to—to a place with a different climate, a di...

 2021-07-22 19:26 

Phys.org

California's carbon mitigation efforts may be thwarted by climate change itself...

To meet an ambitious goal of carbon neutrality by 2045, California's policymakers are relying in part on forests and shrublands to remove CO2 from the atmosphere, but researchers at the University of California, Irvine warn that future climate change ...

 2021-07-22 19:25 

Phys.org

InSight mission: Mars unveiled...

Using information obtained from around a dozen earthquakes detected on Mars by the Very Broad Band SEIS seismometer, developed in France, the international team of NASA's InSight mission has unveiled the internal structure of Mars. The three papers pu...

 2021-07-22 19:13 

Phys.org

Researchers develop tool to drastically speed up the study of enzymes...

For much of human history, animals and plants were perceived to follow a different set of rules than the rest of the universe. In the 18th and 19th centuries, this culminated in a belief that living organisms were infused by a non-physical energy or "...

 2021-07-22 19:02 

Phys.org

Cell-analysis technique could combat tuberculosis...

A new method that analyzes how individual immune cells react to the bacteria that cause tuberculosis could pave the way for new vaccine strategies against this deadly disease, and provide insights into fighting other infectious diseases around the world....

 2021-07-22 19:01 

Phys.org

New study provides clues to decades-old mystery about cell movement...

A new study, led by University of Minnesota Twin Cities engineering researchers, shows that the stiffness of protein fibers in tissues, like collagen, are a key component in controlling the movement of cells. The groundbreaking discovery provides the firs...

 2021-07-22 18:00 

Phys.org

Scientists determine Mars crustal thickness...

Based on the analysis of marsquakes recorded by NASA's InSight mission, the structure of Mars's crust has now been determined in absolute numbers for the first time. Beneath the InSight landing site, the crust is either approximately 20 or 39 kilo...

 2021-07-22 18:00 

Phys.org

Clever cockatoos learn through social interaction...

For the first time, a team of international scientists have proven that cockatoos, an iconic Australian bird species, learn from each other a unique skill—lifting garbage bin lids to gather food. The world-first research published today in Science, ...

 2021-07-22 18:00 

Phys.org

A novel microscope reveals the miracle of molecular oxygen...

Researchers at the University of Regensburg track the first step in the reaction of one single dye pigment with oxygen at an unprecedented resolution....

 2021-07-22 18:00 

Phys.org

Eyes wide shut: How newborn mammals dream the world they're entering...

As a newborn mammal opens its eyes for the first time, it can already make visual sense of the world around it. But how does this happen before they have experienced sight?...

 2021-07-22 18:00 

Phys.org

Studying chromosomal rearrangements in yeast reveals potential avenue for cancer therapy...

Researchers from Osaka University have found that the attachment of a ubiquitin molecule to a protein called PCNA at the lysine 107 position causes gross chromosomal rearrangements. This lysine is located where two PCNA molecules interact, and the ubiquit...

 2021-07-22 16:51 

Phys.org

Gaming graphics card allows faster, more precise control of fusion energy experiments...

Nuclear fusion offers the potential for a safe, clean and abundant energy source....

 2021-07-22 16:45 

Phys.org

Eco-friendly plastic from cellulose and water...

Plastics offer many benefits to society and are widely used in our daily life: they are lightweight, cheap and adaptable. However, the production, processing and disposal of plastics are simply not sustainable, and pose a major global threat to the enviro...

 2021-07-22 16:45 

Phys.org

Silicon with a two-dimensional structure...

Silicon, a semi-metal, bonds in its natural form with four other elements and its three-dimensional structure takes the form of a tetrahedron. For a long time, it seemed impossible to achieve the synthesis and characterisation of a two-dimensional equival...

 2021-07-22 16:27 

Phys.org

New insight on the reproductive evolution of land plants...

Around 470 million years ago, plants began to conquer the terrestrial surfaces. The first examples had a small axis terminated by a structure capable of forming spores, almost like current mosses. The appearance of plant organs mediated the explosive radi...

 2021-07-22 16:22 

Phys.org

Characterized drugs show unexpected effects...

When Alexander Flemming discovered a mold on a culture plate overgrown with bacteria in 1928, he did not expect to find one of the most widely used active substances: penicillin. Accidental discoveries and the identification of active ingredients from tra...

 2021-07-22 16:16 

Phys.org

Antimatter from laser pincers...

In the depths of space, there are celestial bodies where extreme conditions prevail: Rapidly rotating neutron stars generate super-strong magnetic fields. And black holes, with their enormous gravitational pull, can cause huge, energetic jets of matter to...

 2021-07-22 16:14 

Phys.org

Informing policy for long-term global food security...

More than 820 million people in the world don't have enough to eat, while climate change and increasing competition for land and water are further raising concerns about the future balance between food demand and supply. The results of a new IIASA-led...

 2021-07-22 15:58 

Phys.org

Tracking hibernating hedgehogs with GPS 'backpacks'...

New University of Otago research has been examining how alpine-based hedgehogs hibernate from a different perspective—their backs....

 2021-07-22 15:57 

Phys.org

An X-ray vision-like camera to rapidly retrieve 3D images...

It's not exactly X-ray vision, but it's close. In research published in the journal Optica, University of California, Irvine researchers describe a new type of camera technology that, when aimed at an object, can rapidly retrieve 3D images, displa...

 2021-07-22 15:00 

Phys.org

Untwisting DNA reveals new force that shapes genomes...

Advances in microscopy have enabled researchers to picture loops of DNA strands for the first time. The images reveal how the human genome organizes itself in three-dimensional space at much higher resolution than previously possible....

 2021-07-22 15:00 

Phys.org

RNA breakthrough creates crops that can grow 50% more potatoes, rice...

Manipulating RNA can allow plants to yield dramatically more crops, as well as increasing drought tolerance, announced a group of scientists from the University of Chicago, Peking University and Guizhou University....

 2021-07-22 15:00 

Phys.org

Roman road discovered in the Venice lagoon...

The discovery of a Roman road submerged in the Venice Lagoon is reported in Scientific Reports this week. The findings suggest that extensive settlements may have been present in the Venice Lagoon centuries before the founding of Venice began in the fifth...

 2021-07-22 15:00 

Phys.org

Newly-hatched pterosaurs may have been able to fly...

Newly-hatched pterosaurs may have been able to fly but their flying abilities may have been different from adult pterosaurs, according to a new study....

 2021-07-22 15:00 

Phys.org

DeepMind and EMBL release the most complete database of predicted 3D structures of human proteins...

DeepMind today announced its partnership with the European Molecular Biology Laboratory (EMBL), Europe's flagship laboratory for the life sciences, to make the most complete and accurate database yet of predicted protein structure models for the human...

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