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| Spiral wave teleportation theory offers new path to defibrillate hearts, terminate arrhythmias Posted: 24 Jun 2022 05:15 PM PDT Researchers offer a new method to disrupt spiral waves that uses less energy and that may be less painful than traditional defibrillation. |
| Biofinder advances detection of extraterrestrial life Posted: 24 Jun 2022 05:15 PM PDT An innovative scientific instrument, the Compact Color Biofinder may change the game in the search for signs of extraterrestrial life. |
| Oral antiviral drug effective against respiratory syncytial virus (RSV) Posted: 24 Jun 2022 01:20 PM PDT An oral antiviral drug that targets a key part of the respiratory syncytial virus (RSV) polymerase and inhibits the synthesis of viral genetic material has been identified, a finding that could provide an effective treatment against RSV disease. |
| With roommates, it's all about chemistry, molecularly speaking Posted: 24 Jun 2022 01:07 PM PDT Researchers describe how the microbiomes of people and the homes they live in interact and change each other. |
| Changed gene expression after heart surgery extends cardiomyocyte regeneration Posted: 24 Jun 2022 01:07 PM PDT While lower vertebrates can repair their adult hearts after a heart attack, mammals -- including humans -- cannot. The ability to regenerate dead muscle tissue in mammalian hearts disappears just a few days after birth because the heart muscle cells, called cardiomyocytes, exit the cell cycle. In 2020, researchers reported that surgery to remove the left ventricle apex of the heart of pigs, one day after birth, somehow extended the replication ability of heart muscle cells. To better understand the underlying gene expression changes in this extended regeneration window, researchers now report nuclear RNA-sequencing of heart muscle cells, using this porcine model. From such knowledge, and much further research yet to come, clinicians may potentially learn how to regenerate adult heart cardiomyocytes after a heart attack. |
| Flexing the power of a conductive polymer Posted: 24 Jun 2022 01:07 PM PDT For decades, field-effect transistors enabled by silicon-based semiconductors have powered the electronics revolution. But in recent years, manufacturers have come up against hard physical limits to further size reductions and efficiency gains of silicon chips. That has scientists and engineers looking for alternatives to conventional metal-oxide semiconductor (CMOS) transistors. |
| 3D printing of 'organic electronics' Posted: 24 Jun 2022 01:06 PM PDT A research group has explored the potential production of micro-scale organic electronics for use in bioelectronics via multiphoton 3-D printers. |
| Microscopy technique enables 3D super-resolution nanometer-scale imaging Posted: 24 Jun 2022 01:06 PM PDT Over the last two decades, microscopy has seen unprecedented advances in speed and resolution. However, cellular structures are essentially three-dimensional, and conventional super-resolution techniques often lack the necessary resolution in all three directions to capture details at a nanometer scale. A research team has now investigated a super-resolution imaging technique that involves combining the advantages of two different methods to achieve the same resolution in all three dimensions; this is 'isotropic' resolution. |
| Environmental factors predict risk of death Posted: 24 Jun 2022 01:06 PM PDT Along with high blood pressure, diabetes, and smoking, environmental factors such as air pollution are highly predictive of people's chances of dying, especially from heart attack and stroke, a new study shows. |
| Arsenic in private well water contributes to low birth weight even at low levels Posted: 24 Jun 2022 01:06 PM PDT In the largest epidemiologic study of arsenic and birth outcomes to date, researchers estimated arsenic levels in U.S. private well water sources by county and compared estimates to documented birth outcomes. They found an association between estimated groundwater arsenic concentration and risk of low birth weight. |
| Flu vaccination linked to 40% reduced risk of Alzheimer's disease Posted: 24 Jun 2022 09:38 AM PDT People who received at least one influenza vaccine were 40% less likely than their non-vaccinated peers to develop Alzheimer's disease over the course of four years, according to a new study. |
| 'Brain bleeds' in babies first year can lead to long-term sight problems, study finds Posted: 24 Jun 2022 08:54 AM PDT Severe 'brain bleeds' experienced by some babies in the first year following their birth can lead to long-term sight problems, researchers have found as part of a ten-year follow-up study. |
| Light traveling in a distorting medium can appear undistorted Posted: 24 Jun 2022 08:54 AM PDT Researchers have made a new discovery on how light behaves in complex media, media that tends to distort light significantly. They demonstrated that 'distortion' is a matter of perspective, outlining a simple rule that applies to all light and a vast array of media, including underwater, optical fiber, transmission in the atmosphere and even through living biological samples. Their novel quantum approach to the problem resolves a standing debate on whether some forms of light are robust or not, correcting some misconceptions in the community. |
| COVID-19 vaccination in pregnancy helps protect infants from needing hospital care for COVID-19 Posted: 24 Jun 2022 08:54 AM PDT A new study provides additional evidence that COVID-19 vaccination during pregnancy helps protect babies younger than 6 months from being hospitalized due to COVID-19. |
| Quantum network nodes with warm atoms Posted: 24 Jun 2022 07:51 AM PDT Communication networks need nodes at which information is processed or rerouted. Physicists have now developed a network node for quantum communication networks that can store single photons in a vapor cell and pass them on later. |
| New deep learning model helps the automated screening of common eye disorders Posted: 24 Jun 2022 07:51 AM PDT Automation in disease diagnosis is reliant on deep learning models that can accurately and efficiently identify measurements of tumors, tissue volume, or other sorts of abnormalities. Now, researchers have unveiled a new, resource-light model capable of identifying many common eye diseases. |
| The octopus' brain and the human brain share the same 'jumping genes' Posted: 24 Jun 2022 07:51 AM PDT The neural and cognitive complexity of the octopus could originate from a molecular analogy with the human brain, according to a new study. The research shows that the same 'jumping genes' are active both in the human brain and in the brain of two species, Octopus vulgaris, the common octopus, and Octopus bimaculoides, the Californian octopus. |
| Sight problems may increase dementia risk in older adults Posted: 24 Jun 2022 07:49 AM PDT Older adults with untreated sight conditions may be at increased risk of dementia, according to a new systematic review and meta-analysis of 16 studies involving 76,373 participants. |
| Climate change negatively impacting bumble bees Posted: 24 Jun 2022 06:24 AM PDT Temperature changes have negatively impacted most species of bumble bees over the past 120 years, according to new new research. The researchers note that changes in temperature had more of a negative impact than other factors -- such as precipitation or floral resources. |
| Posted: 24 Jun 2022 06:24 AM PDT The female hormone estradiol was found to suppress psoriasis in mice by regulating neutrophil and macrophage cells. The conditional knockout mice without the natural ovarian hormones estradiol showed symptoms of severe skin inflammation. |
| Wearable chemical sensor is as good as gold Posted: 24 Jun 2022 06:24 AM PDT Researchers created a special ultrathin sensor, spun from gold, that can be attached directly to the skin without irritation or discomfort. The sensor can measure different biomarkers or substances to perform on-body chemical analysis. It works using a technique called Raman spectroscopy, where laser light aimed at the sensor is changed slightly depending on whatever chemicals are present on the skin at that point. The sensor can be finely tuned to be extremely sensitive, and is robust enough for practical use. |
| Developmental dyslexia essential to human adaptive success Posted: 24 Jun 2022 06:24 AM PDT Researchers say people with developmental dyslexia have specific strengths relating to exploring the unknown that have contributed to the successful adaptation and survival of our species. |
| A new model sheds light on how we learn motor skills Posted: 24 Jun 2022 06:23 AM PDT Researchers have developed a mathematical model of motor learning that reflects the motor learning process in the human brain. Their findings suggest that motor exploration -- that is, increased variability in movements -- is important when learning a new task. These results may lead to improved motor rehabilitation in patients after injury or disease. |
| Modeling historical biomass could be key to buffering climate change Posted: 23 Jun 2022 11:05 AM PDT A new study paints a vivid image of how forests developed over centuries and contribute to Earth's carbon balance -- a crucial component to maintaining a steady global climate. The study reconstructed the natural pace and pattern of carbon storage in forests of the Midwestern United States over 10,000 years. The findings have the potential to shift ongoing debates about how landscapes can be managed to maximize carbon storage while meeting conservation goals. |
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