428 articles from THURSDAY 21.1.2021
Bringing atoms to a standstill: Researchers miniaturize laser cooling
It's cool to be small. Scientists at the National Institute of Standards and Technology (NIST) 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.
Advances in modeling and sensors can help farmers and insurers manage risk
When drought caused devastating crop losses in Malawi in 2015-2016, farmers in the southeastern African nation did not initially fear for the worst: the government had purchased insurance for such a calamity. But millions of farmers remained unpaid for months because the insurer's model failed to detect the extent of the losses, and a subsequent model audit moved slowly. Quicker payments would...
Developmental origins of eczema and psoriasis discovered
- ScienceDaily
- 21/1/21 22:31
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...
Bringing atoms to a standstill: Miniaturizing laser cooling
- ScienceDaily
- 21/1/21 22:31
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.
Giant sand worm discovery proves truth is stranger than fiction
- ScienceDaily
- 21/1/21 22:31
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.
New insights into the link between sunlight exposure and kidney damage
- ScienceDaily
- 21/1/21 22:31
A new collaborative study reveals unexpected insights into how skin exposure to ultraviolet light can worsen clinical symptoms in autoimmune diseases such as lupus.
Creating a safe CAR T-Cell therapy to fight solid tumors in children
- ScienceDaily
- 21/1/21 22:31
Scientists modify CAR T-Cell therapy, making it more effective and less toxic, for possible use in solid tumors such as neuroblastoma.
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.
Squeezing a rock-star material could make it stable enough for solar cells
Among the materials known as perovskites, one of the most exciting is a material that can convert sunlight to electricity as efficiently as today's commercial silicon solar cells and has the potential for being much cheaper and easier to manufacture.
Nature's decline risks our quality of life
It is no secret that over the last few decades, humans have changed nature at an ever-increasing rate. A growing collection of research covers the many ways this is impacting our quality of life, from air quality to nutrition and income. To better understand how which areas are most at risk, scientists have combed through volumes of literature to present global trends in the relationship between...
A cascaded dual deformable phase plate wavefront modulator enables direct AO integration with existing microscopes
Microscopy is the workhorse of contemporary life science research, enabling morphological and chemical inspection of living tissue with ever-increasing spatial and temporal resolution. Even though modern microscopes are genuine marvels of engineering, minute deviations from ideal imaging conditions will still lead to optical aberrations that rapidly degrade imaging quality. A mismatch between the...
NASA mission to test technology for satellite swarms
A NASA mission slated for launch on Friday will place three tiny satellites into low-Earth orbit, where they will demonstrate how satellites might track and communicate with each other, setting the stage for swarms of thousands of small satellites that can work cooperatively and autonomously.
Abnormal hyperactivation in the brain may be an early sign of Alzheimer's
- ScienceDaily
- 21/1/21 21:38
A psychology and neuroscience professor has just targeted an early biomarker of the disease.
Mitochondrial mutation increases the risk of diabetes in Japanese men
- ScienceDaily
- 21/1/21 21:38
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.
Scientists make pivotal discovery on mechanism of Epstein-Barr virus latent infection
Researchers at The Wistar Institute 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. Published in Cell, this study provides new indications for inhibiting EBNA1 function, opening up fresh avenues for development of therapies to treat EBV-associated cancers.
Solar system formation in two steps
- ScienceDaily
- 21/1/21 21:10
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.
Squeezing a rock-star material could make it stable enough for solar cells
- ScienceDaily
- 21/1/21 21:10
A promising lead halide perovskite is great at converting sunlight to electricity, but it breaks down at room temperature. Now scientists have discovered how to stabilize it with pressure from a diamond anvil cell. The required pressure is well within the reach of industrial manufacturing requirements.
Designing customized 'brains' for robots
- ScienceDaily
- 21/1/21 21:09
Researchers have developed an automated way to design customized hardware that speeds up a robot's operation. The system, called robomorphic computing, accounts for the robot's physical layout in suggesting an optimized hardware architecture.
Spitting Cobra venom reveals how evolution often finds the same answer to a common problem
- ScienceDaily
- 21/1/21 21:09
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.
A closer look at T cells reveals big differences in mild vs. severe COVID-19 cases
- ScienceDaily
- 21/1/21 21:09
How long does immunity to SARS-CoV-2 last following infection? Researchers have uncovered an interesting clue. Their new study suggests that people with severe COVID-19 cases may be left with more of the protective 'memory' T cells needed to fight reinfection.
Combining best of both worlds for cancer modeling
- ScienceDaily
- 21/1/21 21:09
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.
Study finds genetic clues to pneumonia risk and COVID-19 disparities
- ScienceDaily
- 21/1/21 21:09
Researchers have identified genetic factors that increase the risk for developing pneumonia and its severe, life-threatening consequences.
When a story is breaking, AI can help consumers identify fake news
- ScienceDaily
- 21/1/21 21:09
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.
Why older adults must go to the front of the vaccine line
- ScienceDaily
- 21/1/21 21:09
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.
How to get more electric cars on the road
- ScienceDaily
- 21/1/21 21:09
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.
Researchers prove fish-friendly detection method more sensitive than electrofishing
- ScienceDaily
- 21/1/21 21:09
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.
'Aging well' greatly affected by hopes and fears for later life
- ScienceDaily
- 21/1/21 21:09
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.
Snake sex chromosomes say less about sex and more about survival
Sex-specific chromosomes are a dangerous place to be, if you're a gene. Because these chromosomes—Y chromosomes, in humans—do not have a matching chromosome with which to exchange genetic information, they are prone to losing non-essential genes left and right in a process called genetic decay.
COVID-19 infection in immunodeficient patient cured by infusing convalescent plasma, doctors report
- ScienceDaily
- 21/1/21 21:09
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...
Small electric fields can play decisive role in formation of diamond
Diamond, like graphite, is a special form of carbon. Its cubic crystal structure and its strong chemical bonds give it its unique hardness. For thousands of years, it has also been sought after as both a tool and as a thing of beauty. Only in the 1950s did it become possible to produce diamonds artificially for the first time.
Angstrom multilayer metrology by combining spectral measurements and machine learning
With the recent explosive demand for data storage, ranging from data centers to various smart and connected devices, the need for higher-capacity and more compact memory devices is constantly increasing. As a result, semiconductor devices are now moving from 2-D to 3-D. The 3-D-NAND flash memory is the most commercially successful 3-D semiconductor device today, and its demand for supporting our...
Antarctica: The ocean cools at the surface but warms up at depth
Scientists from the CNRS, CNES, IRD, Sorbonne Université, l'Université Toulouse III—Paul Sabatier and their Australian colleagues, with the support of the IPEV, have provided a comprehensive analysis on the evolution of Southern Ocean temperatures over the last 25 years.
Scientists discover how the potentially oldest coral reefs in the Mediterranean developed
A new study from the Institut de Ciències del Mar (ICM-CSIC, Spain) and the National Oceanography Centre brings unprecedented insights into the environmental constraints and climatic events that controlled the formation of these reefs.
Producing green hydrogen through the exposure of nanomaterials to sunlight
A research team from the Institut National de la Recherche Scientifique (INRS) has joined forces with French researchers from the Institute of Chemistry and Processes for Energy, Environment and Health (ICPEES), a CNRS-University of Strasbourg joint research lab, to pave the way towards the production of green hydrogen. This international team has developed new...
Novel effector biology research provides insights into devastating citrus greening disease
Citrus greening disease, also known as Huanglongbing (HLB), is devastating to the citrus industry, causing unprecedented amounts of damage worldwide. There is no known cure. Since the disease's introduction to the United States in the early 2000s, research efforts have increased exponentially. However, there is still a lack of information about the molecular mechanism behind the disease.
Fighting respiratory virus outbreaks through 'nano-popcorn' sensor-based rapid detection
Viral respiratory diseases are easily transmissible and can spread rapidly across the globe, causing significant damage. The ongoing COVID-19 pandemic is a testament to this. In the past too, other viruses have caused massive respiratory disease outbreaks: for example, a subtype of the influenza virus, the type A H1N1 virus, was responsible for the Spanish flu and the Swine flu outbreaks. Thus, to...
Boosted photocatalysis for hydrogen evolution: Reactant supply thru phosphonate groups
Water splitting research for solar hydrogen production has focused on physical processes inside the semiconductor, such as light absorption, charge separation, and chemical processes on the surface that are highly complex and rely on the development of new materials. However, processes inside the solution had yet to be thoroughly explored.