- PhysOrg
- 19/12/24 17:41
Typhoon Phanfone, known locally in the Philippines as Ursula, was making landfall in the central part of the country when NASA-NOAA's Suomi NPP satellite passed overhead on Dec. 24.
62 articles from TUESDAY 24.12.2019
Typhoon Phanfone, known locally in the Philippines as Ursula, was making landfall in the central part of the country when NASA-NOAA's Suomi NPP satellite passed overhead on Dec. 24.
Chinese researchers have improved the accuracy in detecting space junk in earth's orbit, providing a more effective way to plot safe routes for spacecraft maneuvers.
By introducing a chemical cocktail to granulosa cells, researchers in China induced the cells to transform into functional oocytes in mice. Once fertilized, these oocytes were then successfully able to produce healthy offspring, showing no differences from naturally bred mice. The chemical reprogramming method appears December 24 in the journal Cell Reports.
Scientists have developed a special molecular switch that could be embedded into gene therapies to allow doctors to control dosing. The feat offers gene therapy designers what may be the first viable technique for adjusting the activity levels of their therapeutic genes.
When Steve Ghan set out to walk 1,500 miles of the Pacific Crest Trail, he brought along a bright blue hat emblazoned with four words: "Make Earth Cool Again." It often drew compliments from other hikers, which he used as an opening.
Two-photon laser scanning microscopy imaging is commonly applied to study neuronal activity at cellular and subcellular resolutions in mammalian brains. Such studies are yet confined to a single functional region of the brain. In a recent report, Mengke Yang and colleagues at the Brain Research Instrument Innovation Center, Institute of Neuroscience, Center for Systems Neuroscience and Optical...
Typhoon Phanfone smashed into the central Philippines on Tuesday, leaving thousands of people unable to get home for the Christmas holidays and forcing many others to evacuate in the face of the onslaught.
Deaths due to famine have fallen precipitously in recent decades, but undernutrition, which affects one in five children worldwide, remains rampant. Now, researchers are using satellite imagery and social media to detect food-scarce regions before they become full-blown crises.
It's the most wonderful time of the year—the time NASA's SnowEx campaign hits the skies and ground of the world's snowy places, measuring snow properties to understand how much water is contained by each winter's snowfall.
Fortunately for today's scientists, Apollo-era leaders had the foresight to save much of the 842 pounds (382 kilograms) of Moon soil and rocks retrieved by NASA astronauts 50 years ago for future generations. They figured new crops of scientists, using instruments of their time, would be able to probe the samples with unprecedented rigor.
On solar farms in particularly dusty places in the world, like the Arabian Peninsula and parts of India and China, air pollution costs the solar energy industry tens of billions of dollars annually. As particles settle out of the air onto the surfaces of solar panels, they constrain the panels' potential. Workers with soapy brushes can clean the grime from the panels, much as you might clean your...
For most Americans, their home is their most valuable asset, so it makes sense to borrow against the equity to obtain cash. In lean times, that money can be spent on consumption, which keeps the economy humming along. But if housing values and personal incomes don't rise, borrowers might find themselves struggling to repay the debt.
An international team of researchers has concluded that the so-called "enigmatic hominoid" did not walk upright and was also not a tree climber. In their paper published in Proceedings of the National Academy of Sciences, the group describes their in-depth study of the skeletal remains of Oreopithecus bambolii and what they learned from it.
Randomness governs many things, from the growth of cell colonies and the agglomeration of polymers to the shapes of tendrils that form when you pour cream into a cup of coffee.
Based on the first data release (DR1) from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST), astronomers have derived fundamental parameters of nearly 30,000 M-dwarf stars. The research paper presenting the findings was published December 13 on the arXiv pre-print repository.
Scientists revealed that ATAD5 actively deals with replication stress, in addition to its known function to prevent such stressful situations. Though ATAD5 has been known as a tumor suppressor by maintaining genomic stability and suppressing tumorigenesis, it has been unclear whether the replication regulatory protein is also involved in the replication stress response.
A new study reveals that, in solid electrolytes, a Si anode composed only of commercial Si nanoparticles prepared by spray deposition -- the method is a cost-effective, atmospheric technique - exhibits excellent electrode performance, which has previously been observed only for film electrodes prepared by evaporation processes. This new result therefore suggests that a low-cost and large-scale...
A research team has unveiled a first-in-kind study of nitrogen oxides (NOx) and its role in the rise and fall of airborne sulfates in hazy air pollution, offering policymakers new insights into ways to tackle smoggy weather.
A new optical atomic clock makes ultra-precise time measurements.
Scientists have found that sprinkling a type of powder into fusion plasma could aid in harnessing the ultra-hot gas within a tokamak facility to produce heat to create electricity without producing greenhouse gases or long-term radioactive waste.
Grown together, newly examined 'lost crops' could have produced enough seed to feed as many indigenous people as traditionally grown maize, according to new research.
Silicene consists of a single layer of silicon atoms. In contrast to the ultra-flat material graphene, which is made of carbon, silicene shows surface irregularities that influence its electronic properties. Now, physicists have been able to precisely determine this corrugated structure. Their method is also suitable for analyzing other two-dimensional materials.
A new study finds that chimpanzees that use a multi-step process and complex tools to gather termites are more likely to share tools with novices. The study helps illuminate chimpanzees' capacity for prosocial -- or helping -- behavior, a quality that has been recognized for its potential role in the evolution of human cultural abilities.
People with restricted diets -- due to allergies, health issues or religious or cultural norms -- are more likely to feel lonely when they can't share in what others are eating, new research shows.
California's elimination, in 2016, of non-medical vaccine exemptions from school entry requirements was associated with an estimated increase in vaccination coverage at state and county levels, according to a new study.
The VISION study looked at whether levels of a cardiac blood test, NT-proBNP, measured before surgery can predict cardiac and vascular complications. Higher levels of NT-proBNP, which can be caused by various anomalies in the cardiac muscle, such as stress, inflammation or overstretch, can help identify which patients are at greatest risk of cardiac complications after surgery. The study included...
In her prior life, Jaishree Beedasy was teaching chemical engineering courses. Then she decided to pursue her main interest, which is studying the impact of disasters on the health of vulnerable communities. While disasters don't discriminate against people when they strike, the fact remains that during the aftermath of disasters, the most vulnerable groups of society bear the brunt of the...
Virophages are small viruses with double-stranded DNA genomes that co-infect eukaryotic cells along with giant viruses. Almost all known virophage genomes share only four genes in common: major and minor capsid proteins (MCP and mCP, respectively), ATPase involved in DNA packaging, and PRO, a cysteine protease involved in capsid maturation.
Two of Australia's leading strategic urban plans could be used or expanded to do much more to promote better places to live for all residents, according to a new report.
Liquid crystals have enabled new technologies, like LCD screens, through their ability to reflect certain color wavelengths.
Honey bees are invaluable pollinators—cupids of the plant world facilitating the remixing of genes in the next generation of flowering vegetation. In return for their services, bees eat plant nectar and pollen. Nectar is an easily absorbable solution of sugars. But pollen contains plant cell walls, which have complex, branching chains of polysaccharides called pectin and hemicellulose. While...
In 1924, a three-year-old child's skull found in South Africa forever changed how people think about human origins.
DNA stores all of the information necessary for life phenomena, and a cell transmits its own genetic information to two daughter cells through DNA replication and cell division. Replication stress can be caused by extracellular and intracellular sources during DNA replication, which leads to slowed or stalled replication. If cells do not properly cope with such risks, chromosome break and...
Starting in December 1969, a series of El Nino storms barreled up from southern Baja California, bucketing rain, flooding homes and battering hillsides into mud slicks across the Southland. Federal disaster areas were declared in 35 counties, and $900 million in damages were reported.
Researchers seeking to develop self-healing hydrogels have long sought to mimic the natural ability of mussels to generate strong, flexible threads underwater that allow the mussels to stick to rocks.
Billions of years ago, in the center of a galaxy cluster far, far away (15 billion light-years, to be exact), a black hole spewed out jets of plasma. As the plasma rushed out of the black hole, it pushed away material, creating two large cavities 180 degrees from each other. In the same way you can calculate the energy of an asteroid impact by the size of its crater, Michael Calzadilla, a graduate...
The welfare of millions of broiler chickens could be improved thanks to an educational video to help farmers identify and encourage positive welfare in broilers. The video has been created following collaborative work by The Co-op, their chicken supplier, Two Sisters Food Group, and research partners the University of Bristol and FAI Farms.
The development of technologies which can process information based on the laws of quantum physics are predicted to have profound impacts on modern society.
A team led by Carleton University's Hillary Maddin has discovered the earliest fossil evidence of parental care. The fossil predates the previous oldest record of this behavior by 40 million years and is featured in an article in Nature Ecology & Evolution.
GANGOTRI, India -- High in the Himalayas, it's easy to see why the Ganges River is considered sacred.According to Hindu legend, the Milky Way became this earthly body of water to wash away humanity's sins. As it drains out of a glacier here, rock silt dyes the ice-cold torrent an opaque gray, but biologically, the river is pristine -- free of bacteria.Then, long before it flows past any...
The only measurement that matters is greenhouse-gas emissions—and they continued to rise.
We’d better pick up the pace in the 2020s.
Internet companies have been slow to solve their problems. Now everyone else is starting to do it for them.
The dramatic dimming of a giant star has astronomers wondering whether it's getting ready to go supernova. If Betelgeuse, the shoulder on the left side in the constellation Orion, were to explode, it would become as bright as a full...
The mix of tradition, culture and ‘Christmas marketing creep’ can defeat our low-waste low-carbon...