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Better post-surgery care would dramatically improve cancer survival  

Patients' chances of survival after cancer surgery is strongly linked with the standard of post-operation hospital care, a major international study suggests.

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2021-01-23 21:42:35



Spontaneous cell fusions amplify genetic diversity within tumors  

Scientists generally believe that cancers lack a powerful and important diversification mechanism available to pathogenic microbes - the ability to exchange and recombine genetic material between different cells. However, researchers now demonstrate that this belief is wrong and that cancer cells are capable of exchanging and recombining their genetic material with each other through a mechanism mediated by cell fusions.

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2021-01-23 21:31:40



Friends are most valued in cultures where they may be needed most  

Researchers reveal cultural and health benefits of close human relationships in a new study.

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2021-01-23 21:28:20



Solar system formation in two steps  

Researchers have discovered that a two-step formation process of the early Solar System can explain the chronology and split in volatile and isotope content of the inner and outer Solar System.

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2021-01-23 20:49:21



Researchers improve data readout by using 'quantum entanglement'  

Researchers say they have been able to greatly improve the readout of data from digital memories - thanks to a phenomenon known as 'quantum entanglement'.

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2021-01-23 18:03:48



Creating a safe CAR T-Cell therapy to fight solid tumors in children  

Scientists modify CAR T-Cell therapy, making it more effective and less toxic, for possible use in solid tumors such as neuroblastoma.

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2021-01-23 14:24:03



Scientists discover link between nicotine and breast cancer metastasis  

Scientists have found that nicotine promotes the spread of breast cancer cells into the lungs.

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2021-01-23 13:28:32



European eels - one gene pool fits all  

European eels spawn in the subtropical Sargasso Sea but spend most of their adult life in a range of fresh- and brackish waters, across Europe and Northern Africa. Using whole-genome analysis, a team of scientists provides conclusive evidence that all European eels belong to a single panmictic population irrespective of where they spend their adult life, an extraordinary finding for a species living under such variable environmental conditions.

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2021-01-23 11:39:47



Southern California Ambulance Crews Are Running Out of Oxygen—and Gas  

The pandemic has put the region’s emergency personnel under extraordinary strain -- Read more on ScientificAmerican.com

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2021-01-23 11:36:34



The Devonian Extinction: A Slow Doom That Swept Our Planet  

Over millions of years, most living organisms suffocated in oxygen-deprived oceans. In the aftermath, modern vertebrates conquered the world.

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2021-01-23 08:35:06



Smart vaccine scheme quick to curb rabies threat in African cities  

More people could be protected from life-threatening rabies thanks to an agile approach to dog vaccination using smart phone technology to spot areas of low vaccination coverage in real time. The work could help save the lives of children worldwide.

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2021-01-23 06:40:35



Scientists solve a 100-year-old mystery about cancer  

A long-standing mystery is why fast-growing cells, like cancer cells and immune cells, rely on a seemingly inefficient form of metabolizing glucose to power their activities. In a new study, scientists now offer a compelling solution.

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2021-01-23 06:16:36



Combining best of both worlds for cancer modeling  

Treatment options for many types of cancers remain limited, due partly to the in vitro tools used to model cancers and that results from animal studies do not always translate well to human disease. These shortcomings point to a clear need for a better, patient-specific model. Researchers suggest bioengineered microscale organotypic models can address this need.

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2021-01-23 05:25:27



Gastrointestinal surgery can be a 'cure' for type 2 diabetes finds new long-term study  

The results of a randomized clinical trial with the longest follow up to date show that metabolic surgery is more effective than medications and lifestyle interventions in the long-term control of severe type 2 diabetes.

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2021-01-23 04:15:44



Developmental origins of eczema and psoriasis discovered  

Scientists have created a highly detailed map of skin, which reveals that cellular processes from development are re-activated in cells from patients with eczema and psoriasis inflammatory skin diseases. The study offers potential new drug targets for treating these painful skin diseases and provides a new understanding of inflammatory disease. The research could also provide a template for regenerating healthy skin in the laboratory.

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2021-01-23 04:09:11



Premature Freakouts about Techno-Enhancement  

Debates about whether to "improve" our minds and bodies often exaggerate the feasibility of doing so -- Read more on ScientificAmerican.com

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2021-01-23 02:24:35



On the trail of active ingredients from marine yeasts  

Numerous natural products are awaiting discovery in all kinds of natural habitats. Especially microorganisms such as bacteria or fungi are able to produce diverse natural products with high biomedical application potential in particular as antibiotics and anticancer agents. Researchers have isolated red yeast of the species Rhodotorula mucilaginosa from a deep-sea sediment sample and analyzed for its genome and chemical constituents. The scientists succeeded in demonstrating its anticancer and a

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2021-01-23 01:55:35



Record-breaking laser link could help us test whether Einstein was right  

Scientists have set a world record for the most stable transmission of a laser signal through the atmosphere. The team combined 'phase stabilization' technology with advanced self-guiding optical terminals to 'effectively eliminate atmospheric turbulence,' an advance which could help test Einstein's theory of general relativity.

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2021-01-23 01:35:54



Beetles reveal how to hide the body  

A corpse is a home to the burying beetle, and researchers are learning how this specialist critter keeps its home free of unwanted visitors.

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2021-01-22 18:42:01



Early breeding reduced harmful mutations in sorghum  

A new Cornell University study found that harmful mutations in sorghum landraces - early domesticated crops - decreased compared to their wild relatives through the course of domestication and breeding.

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2021-01-22 16:40:06



Coronavirus News Roundup, January 16-January 22  

Pandemic highlights for the week -- Read more on ScientificAmerican.com

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2021-01-22 15:46:47



Lasers create miniature robots from bubbles  

Robots are widely used to build cars, paint airplanes and sew clothing in factories, but the assembly of microscopic components, such as those for biomedical applications, has not yet been automated. Lasers could be the solution. Now, researchers have used lasers to create miniature robots from bubbles that lift, drop and manipulate small pieces into interconnected structures.

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2021-01-22 15:31:34



Rhesus macaques develop promising immune response to SARS-CoV-2  

In a promising result for the success of vaccines against COVID-19, rhesus macaque monkeys infected with the human coronavirus SARS-CoV-2 developed protective immune responses that might be reproduced with a vaccine.

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2021-01-22 13:31:42



Twitter Bots Are a Major Source of Climate Disinformation  

Such accounts can distort online conversations and potentially diminish support for climate policies -- Read more on ScientificAmerican.com

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2021-01-22 13:29:30



Reviving exhausted immune cells to fight cancer  

Eliminating a single gene can turn exhausted cancer-fighting immune cells known as CD8+ T cells back into refreshed soldiers that can continue to battle malignant tumors, a new study suggests. The findings could offer a new way to harness the body's immune system to attack cancers.

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2021-01-22 13:01:11



Forget Dieting. Here's What Really Works to Lose Weight  

Science can explain why it's so hard to lose weight and keep it off — and the results don't support dieting. Try these strategies instead.

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2021-01-22 12:01:28



Merging technologies with color to avoid design failures  

Various software packages can be used to evaluate products and predict failure; however, these packages are extremely computationally intensive and take a significant amount of time to produce a solution. Quicker solutions mean less accurate results.

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2021-01-22 11:08:12



Why Is Fish Good For You? It's Not Because of Omega-3s  

You can't pop a supplement to get the nutritional benefits of eating fish. Here's why.

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2021-01-22 11:08:06



PTSD link to pandemic fears  

A new study of 1040 online participants from five western countries explores people's response to the stresses of the escalating pandemic, finding more than 13 percent of the sample had post-traumatic stress disorder (PTSD) related symptoms consistent with levels necessary to qualify for a clinical diagnosis.

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2021-01-22 11:05:51



Astronomers discover first cloudless, Jupiter-like planet  

Astronomers have detected the first Jupiter-like planet without clouds or haze in its observable atmosphere.

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2021-01-22 11:03:48



When it comes to eyewitness accounts of earthquake shaking, representation matters  

As scientists increasingly rely on eyewitness accounts of earthquake shaking reported through online systems, they should consider whether those accounts are societally and spatially representative for an event, according to a new article.

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2021-01-22 09:53:29



NSAIDs might exacerbate or suppress COVID-19 depending on timing, mouse study suggests  

New research shows that non-steroidal anti-inflammatory drugs (NSAIDs) reduced both antibody and inflammatory responses to SARS-CoV-2 infection in mice.

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2021-01-22 08:14:04



Drug-delivery microcapsules tagged with zirconium-89 can be tracked by PET imaging  

Polymer and radionuclide chemists report major advance in microcapsule drug delivery systems. Their microcapsules -- labeled with radioactive zirconium-89 -- are the first example of hollow polymer capsules capable of long-term, multiday positron emission tomography imaging in vivo. In previous work, the researchers showed that the hollow capsules could be filled with a potent dose of the cancer drug doxorubicin, which could then be released by therapeutic ultrasound that ruptures the microcapsu

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2021-01-22 06:22:01



Natural hazard events and national risk reduction measures unconnected  

Countries where massive natural hazard events occur frequently are not more likely than others to make changes to reduce risks from future disasters.

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2021-01-22 06:07:12



Mathematical framework enables accurate characterization of shapes  

In nature, many things have evolved that differ in size, color and, above all, in shape. While the color or size of an object can be easily described, the description of a shape is more complicated. Researchers have now outlined a new and improved way to describe shapes based on a network representation that can also be used to reassemble and compare shapes.

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2021-01-22 05:52:53



Forever Chemicals Are Widespread in U.S. Drinking Water  

Experts hope that with the incoming Biden administration, the federal government will finally regulate a class of chemicals known as PFASs -- Read more on ScientificAmerican.com

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2021-01-22 05:26:12



Scientists make pivotal discovery on mechanism of Epstein-Barr virus latent infection  

Researchers have discovered a new enzymatic function of the Epstein-Barr Virus (EBV) protein EBNA1, a critical factor in EBV's ability to transform human cells and cause cancer. Study provides new indications for inhibiting EBNA1 function, opening up fresh avenues for development of therapies to treat EBV-associated cancers.

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2021-01-22 05:13:06



A display that completely blocks off counterfeits  

A research team has developed nanostructures capable of polarized optical encryption.

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2021-01-22 05:11:02



When a story is breaking, AI can help consumers identify fake news  

Warnings about misinformation are now regularly posted on Twitter, Facebook, and other social media platforms, but not all of these cautions are created equal. New research from Rensselaer Polytechnic Institute shows that artificial intelligence can help form accurate news assessments -- but only when a news story is first emerging.

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2021-01-22 05:08:50



Cartilage matrix as natural biomaterial for cartilage regeneration  

A working group develops strategies for regeneration of articular cartilage and has found that natural cartilage matrix is suitable as a biomaterial for improved cartilage regeneration.

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2021-01-22 04:48:54



Innovations through hair-thin optical fibers  

Scientists have built hair-thin optical fiber filters in a very simple way. They are not only extremely compact and stable, but also color-tunable. This means they can be used in quantum technology and as sensors for temperature or for detecting atmospheric gases.

what do you think?

2021-01-22 04:42:11



This Great Lakes fish may have evolved to see like its ocean ancestors did  

In the dark waters of Lake Superior, a fish species adapted to regain a genetic trait that may have helped its ancient ancestors see in the ocean, a study finds. 'Evolution is often thought of as a one-way process, at least over deep time, but in this example, over 175 million years, we have this reversal back to a much earlier ancestral state,' one of the researchers says.

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2021-01-22 04:38:18



Estrogen receptors in mom's placenta critical during viral infection  

A team of researchers has found a mechanism that protects a fetus from harm when the mother's innate immune system responds to a viral infection. Inflammation that would harm the fetus is dampened by a cell-surface estrogen receptor called GPER1 that is especially abundant in the placenta and fetal tissues.

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2021-01-22 04:33:50



Atomic resolution video of salt crystals forming in real time  

Two novel techniques, atomic-resolution real-time video and conical carbon nanotube confinement, allow researchers to view never-before-seen details about crystal formation. The observations confirm theoretical predictions about how salt crystals form and could inform general theories about the way in which crystal formation produces different ordered structures from an otherwise disordered chemical mixture.

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2021-01-22 04:31:46



Balancing brain cell activity  

Electrical trigger sites in neurons surprisingly change with experience; they are either becoming smaller with increasing number of experiences and, vice versa, they grow larger when less input arrives in the brain.

what do you think?

2021-01-22 04:26:15



Message in a bottle: Info-rich bubbles respond to antibiotics  

Researchers describe the effects of antibiotics on membrane vesicles, demonstrating that such drugs actively modify the properties of vesicle transport. Under the influence of antibiotics, MVs were produced and released by bacteria in greater abundance and traveled faster and further from their origin. The work sheds new light on these important information-carrying entities, implicated in many cellular communication processes, including antibiotic resistance.

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2021-01-22 04:16:58



Tiny high-tech probes reveal how information flows across the brain  

A new study collected and analyzed the largest single dataset of neurons' electrical activity to glean principles of how we perceive the visual world around us. The study captures the hundreds of split-second electrical signals that fire when an animal is interpreting what it sees.

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2021-01-22 04:11:44



Immunology: Functionality of immune cells in early life  

A study shows that putatively immature dendritic cells found in young children are able to induce robust immune responses. The results could lead to improved vaccination protocols.

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2021-01-22 04:10:55



Study defines small-cell lung cancer subtypes and distinct therapeutic vulnerabilities for each type  

Researchers have developed the first comprehensive framework to classify small-cell lung cancer (SCLC) into four unique subtypes, based on gene expression, and have identified potential therapeutic targets for each type in a study.

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2021-01-22 04:04:14



Mitochondrial mutation increases the risk of diabetes in Japanese men  

A new study of Type 2 diabetes (T2D) in Japanese populations has uncovered a previously uncharacterized genetic variant that puts male carriers at greater risk for the disease, as well as the mechanism by which it does so. The impact of the variant was most pronounced in sedentary men; those with the variant had a 65% greater rate of T2D than sedentary men without it.

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2021-01-22 03:54:56



New, simplified genetic test effectively screens for hereditary cancers  

Researchers have developed a new integrated genetic/epigenetic DNA-sequencing protocol known as MultiMMR that can identify the presence and cause of mismatch repair (MMR) deficiency in a single test from a small sample of DNA in colon, endometrial, and other cancers. This alternative to complex, multi-step testing workflows can also determine causes of MMR deficiency often missed by current clinical tests.

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2021-01-22 03:46:02



New graphene nanochannel water filters  

Researchers have shown that tiny channels between graphene sheets can be aligned in a way that makes them ideal for water filtration.

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2021-01-22 03:45:07



Researchers prove fish-friendly detection method more sensitive than electrofishing  

Delivering a minor electric shock into a stream to reveal any fish lurking nearby may be the gold standard for detecting fish populations, but it's not much fun for the trout. Scientists have found that sampling stream water for evidence of the presence of various species using environmental DNA, known as eDNA, can be more accurate than electrofishing, without disrupting the fish.

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2021-01-22 03:42:41



Turbulence model could help design aircraft capable of handling extreme scenarios  

To help build aircraft that can better handle violent turbulence, researchers developed a new model that allows engineers to incorporate the physics of an entire vortex collision into their design codes.

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2021-01-22 03:40:04



See how they run: 'Exercise protein' doubles running capacity, restores function and extends healthy lifespans in older mice  

A new study shows that humans express a powerful hormone during exercise and that treating mice with the hormone improves physical performance, capacity and fitness. Researchers say the findings present new possibilities for addressing age-related physical decline.

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2021-01-22 03:20:09



Chemists harness synergy effect of gallium  

Chemists have demonstrated the value of 'teamwork' by successfully harnessing the interaction between two gallium atoms in a novel compound to split the particularly strong bond between fluorine and carbon. The gallium compound is also cheaper and more environmentally friendly than conventional alternatives.

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2021-01-22 03:03:43



How to get more electric cars on the road  

Researchers reveal the kinds of infrastructure improvements that would make the biggest difference in increasing the number of electric cars on the road, a key step toward reducing greenhouse gas emissions from transportation.

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2021-01-22 02:44:46



'Aging well' greatly affected by hopes and fears for later life  

If you believe you are capable of becoming the healthy, engaged person you want to be in old age, you are much more likely to experience that outcome, a recent study shows.

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2021-01-22 02:38:12



Crystal structures in super slow motion  

Laser beams are used to change the properties of materials in an extremely precise way. However, the underlying processes generally take place at such unimaginably fast speeds and at such a small scale that they have so far eluded direct observation. Researchers have now managed to film, for the first time, the laser transformation of a crystal structure with nanometer resolution and in slow motion in an electron microscope.

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2021-01-22 02:37:50



Indigenous lands: A haven for wildlife  

Indigenous peoples' lands may harbor a significant proportion of threatened and endangered species globally, according to new research.

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2021-01-22 02:32:52



Detailed tumour profiling  

As part of a clinical study, researchers are conducting a thorough and highly precise investigation into the molecular and functional properties of tumors. Their goal is to help physicians to better determine which treatment will best match every patient's cancer and thus be most effective.

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2021-01-22 02:17:47



Strange colon discovery explains racial disparities in colorectal cancer  

The colons of African-Americans and people of European descent age differently, new research reveals, helping explain racial disparities in colorectal cancer.

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2021-01-22 02:12:10



New insights into the link between sunlight exposure and kidney damage  

A new collaborative study reveals unexpected insights into how skin exposure to ultraviolet light can worsen clinical symptoms in autoimmune diseases such as lupus.

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2021-01-22 02:12:08



Treating moms with postpartum depression helps their babies' brains  

For the study 40 infants of women diagnosed with postpartum depression were matched with 40 infants of non-depressed mothers on infant age, gender and socioeconomic status. The mothers with postpartum depression received nine weeks of group CBT. The infants were all tested before the treatment and nine weeks later, including a questionnaire on the infant behaviour completed by the mother and her partner.

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2021-01-22 02:07:12



Vegan diet significantly remodels metabolism in young children  

Researchers report a comprehensive pilot study on the metabolic effects of full vegan diet on young children. The study found vegan children to have remarkably altered metabolism and lower vitamin A and D status compared to children with no special diet.

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2021-01-22 02:01:15



Vaccine produces long-lasting anti-tumor response in patients with melanoma  

Patients treated with a vaccine tailored to mutated proteins on patients' own tumor cells, continue to have a strong immune response to the cancer four years after being vaccinated. Results demonstrate the ability of personalized cancer vaccines to provide long-term immunity against some cancers.

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2021-01-22 01:56:37



Abnormal hyperactivation in the brain may be an early sign of Alzheimer's  

A psychology and neuroscience professor has just targeted an early biomarker of the disease.

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2021-01-22 01:54:22



Bringing atoms to a standstill: Miniaturizing laser cooling  

Scientists have miniaturized the optical components required to cool atoms down to a few thousandths of a degree above absolute zero, the first step in employing them on microchips to drive a new generation of super-accurate atomic clocks, enable navigation without GPS, and simulate quantum systems.

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2021-01-22 01:47:25



The Physician Who Presaged the Germ Theory of Disease Nearly 500 Years Ago  

Largely forgotten today, Girolamo Fracastoro was a seminal figure in our understanding of infectious illness -- Read more on ScientificAmerican.com

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2021-01-22 01:44:42



Cargo delivery by polymers  

Degradable, bio-based polymers offer options for chemical recycling, and they can be a tool to store and release useful molecules. Scientists have developed a class of sugar-based polymers that are degradable through acid hydrolysis. The researchers also integrated 'cargo' molecules in the polymer, which are designed to split off after polymer degradation.

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2021-01-22 01:43:25



December's Total Solar Eclipse as Seen from Space  

The shadow of the moon is a brown blob moving across the face of Earth -- Read more on ScientificAmerican.com

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2021-01-22 01:42:26



CRISPR technology to cure sickle cell disease  

A new article reports two patients appear to have been cured of beta thalassemia and sickle cell disease after their own genes were edited with CRISPR-Cas9 technology. The two researchers who invented this technology received the Nobel Prize in Chemistry in 2020.

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2021-01-22 01:29:56



The physics behind tumor growth  

Researchers have developed a predictive theory for tumor growth that approaches the subject from a new point of view. Rather than focusing on the biological mechanisms of cellular growth, the researchers instead use thermodynamics and the physical space the tumor is expanding into to predict its evolution from a single cell to a complex cancerous mass.

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2021-01-22 01:25:44



What happens to your body during tailgating  

Researchers simulated a tailgating situation with a small group of overweight but healthy men and examined the impact of the eating and drinking on their livers using blood tests and a liver scan.

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2021-01-22 01:22:21



COVID lockdown loneliness linked to more depressive symptoms in older adults  

Loneliness in adults aged 50 and over during the COVID-19 lockdown was linked to worsening depressive and other mental health symptoms, according to a large-scale online study.

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2021-01-22 01:02:07



Why older adults must go to the front of the vaccine line  

A new global, mathematical modeling study shows that in most cases prioritizing older adults for COVID-19 vaccines saves the most lives. It also found that, in some cases, more lives could be saved and infections prevented if those who've already tested positive step to the back of the line.

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2021-01-21 21:44:48



Age provides a buffer to pandemic's mental health impact, researchers say  

Older adults are managing the stress of the coronavirus pandemic better than younger adults, reporting less depression and anxiety despite also experiencing greater general concern about COVID-19, according to a recent study.

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2021-01-21 21:18:33



Antidepressants largely ineffective for back pain and osteoarthritis  

Antidepressant drugs are largely ineffective for back and osteoarthritis pain, despite being widely used for these conditions, suggests a review of the evidence.

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2021-01-21 20:54:50



Immune system mounts a lasting defense after recovery from COVID-19, researchers find  

Study participants continued to improve their antibodies months after initial infection, potentially due to exposure to remnants of the virus hidden in the gut.

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2021-01-21 20:24:12



Patients in cancer remission at high risk for severe COVID-19 illness  

Patients with inactive cancer and not currently undergoing treatments also face a significantly higher risk of severe illness from COVID-19, according to new research.

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2021-01-21 20:08:46



Researchers ID potential target for anti-viral drugs to battle COVID  

Researchers have published the first structural biology analysis of a section of the COVID-19 viral RNA called the stem-loop II motif. This is a non-coding section of the RNA, which means that it is not translated into a protein, but it is likely key to the virus's replication.

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2021-01-21 19:42:53



Hope for a vaccination against Staphylococcus areus infections?  

With an epitope-based immunization, scientists have described a new vaccination strategy against Staphylococcus aureus.

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2021-01-21 19:22:09



COVID-19 is dangerous for middle-aged adults, not just the elderly  

COVID-19 has been spreading rapidly over the past several months, and the U.S. death toll has now reached 400,000. As evident from the age distribution of those fatalities, COVID-19 is dangerous not only for the elderly but for middle-aged adults, according to a new study.

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2021-01-21 18:27:47



Survey: Frequent reports of missed medical care in US adults during the early phase of the COVID-19 pandemic  

Two out of five individuals delayed or missed medical care in the early phase of the pandemic -- from March through mid-July 2020.

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2021-01-21 18:24:28



Methane emissions from abandoned oil and gas wells underestimated  

A recent study finds that annual methane emissions from abandoned oil and gas (AOG) wells in Canada and the US have been greatly underestimated - by as much as 150% in Canada, and by 20% in the US. Indeed, the research suggests that methane gas emissions from AOG wells are currently the 10th and 11th largest sources of anthropogenic methane emission in the US and Canada, respectively.

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2021-01-21 18:04:52



COVID-19 infection in immunodeficient patient cured by infusing convalescent plasma, doctors report  

Under FDA emergency-use authorization, doctors successfully resolved COVID-19 in a seriously ill, immunodeficient woman using a very high-neutralizing antibody-titer convalescent plasma from a recovered COVID-19 patient. However, further study suggested that use of convalescent plasma may not be warranted in many cases, for two reasons: 1) titer levels are too low in many convalescent plasmas, and 2) there are high endogenous neutralizing antibody titers already present in COVID-19 patients prio

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2021-01-21 17:32:17



Discovery of new praying mantis species from the time of the dinosaurs  

A research team has identified a new species of praying mantis thanks to imprints of its fossilized wings. It lived in Labrador, in the Canadian Subarctic around 100 million years ago, during the time of the dinosaurs, in the Late Cretaceous period. The researchers believe that the fossils of the new genus and species, Labradormantis guilbaulti, helps to establish evolutionary relationships between previously known species and advances the scientific understanding of the evolution of the most 'p

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2021-01-21 17:06:01



Much of Earth's nitrogen was locally sourced  

Scientists show evidence that nitrogen acquired during Earth's formation came from both the inner and outer regions of the protoplanetary disk. The study has implications for signs of potential habitability of exoplanets.

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2021-01-21 16:55:24



Eric Lander Is Not the Ideal Choice for Presidential Science Adviser  

Despite a long list of supremely qualified people who could inspire a whole new generation of scientists, the glass ceiling in American science remains intact -- Read more on ScientificAmerican.com

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2021-01-21 15:58:48



Early humans used chopping tools to break animal bones and consume the bone marrow  

Researchers found that stone tools of the type known as 'chopping tools' were used to break open the bones of animals. Tools of this type were used for over two million years. They were found in large quantities at prehistoric sites all over the Old World, but no one understood their exact function.

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2021-01-21 15:31:30



Producing green hydrogen through the exposure of nanomaterials to sunlight  

Researchers are paving the way towards the production of green hydrogen.

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2021-01-21 14:50:15



As oceans warm, large fish struggle  

Warming ocean waters could reduce the ability of fish, especially large ones, to extract the oxygen they need from their environment. Animals require oxygen to generate energy for movement, growth and reproduction. Researchers describe their newly developed model to determine how water temperature, oxygen availability, body size and activity affect metabolic demand for oxygen in fish.

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2021-01-21 13:38:23



Saturn's tilt caused by its moons  

Scientists have just shown that the influence of Saturn's satellites can explain the tilt of the rotation axis of the gas giant. Their work also predicts that the tilt will increase even further over the next few billion years.

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2021-01-21 13:30:43



Why Did Early Humans Leave Africa?  

Homo sapiens have always been on the move. But the traditional out-of-Africa story explains that H. sapiens evolved in Africa and then migrated in a wave to colonize the rest of the world. What sparked this exodus?

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2021-01-21 13:03:26



The Best Cookware, According to Science  

Should you opt for ceramic, cast iron, nonstick, or something else? Here's a guide to choosing pots and pans that will get the job done — and clear up concerns you might have about what they're made of.

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2021-01-21 12:58:18



Biden Administration Appoints Acting NASA Chief  

Associate administrator Steve Jurczyk, who has worked at the space agency since 1988, will serve as its interim leader during the presidential transition -- Read more on ScientificAmerican.com

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2021-01-21 12:18:52



Spitting Cobra venom reveals how evolution often finds the same answer to a common problem  

A study of spitting cobras reveals how a combination of venom components have evolved to create an instantly painful venom, not once, but on three separate occasions.

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2021-01-21 12:13:21



New trial finds arthritis drug no better than standard care for severe COVID-19  

Adding the arthritis drug tocilizumab to standard care for patients in hospital with severe or critical covid-19 is no better than standard care alone in improving clinical outcomes at 15 days, according to results of a new trial.

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2021-01-21 11:52:56



Giant sand worm discovery proves truth is stranger than fiction  

Researchers have found evidence that large ambush-predatory worms -- some as long as two meters -- roamed the ocean floor near Taiwan over 20 million years ago.

what do you think?

2021-01-21 11:35:23



Common pesticides stop bees and flies from getting a good night's sleep  

Just like us, many insects need a decent night's sleep to function properly, but this might not be possible if they have been exposed to neonicotinoid insecticides, the most common form of insecticide used worldwide, suggests research by academics.

what do you think?

2021-01-21 11:11:21






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