Scientists have captured the first high-resolution 3-D images from individual double-helix DNA segments attached to gold nanoparticles, which could aid in the use of DNA segments for nanoscale drug-delivery systems, markers for biological research, and components for electronic devices.
The earliest instrumental records of Earth’s climate, as measured by thermometers and other tools, start in the 1850s. To look further back in time, scientists investigate air bubbles trapped in ice cores, which expands the window to less than a million years. But to study Earth’s history over tens to hundreds of millions of years, researchers examine the chemical and biological signatures of deep sea sediment archives.
Researchers describe a new species, "Psychrophrynella chirihampatu," from the Peruvian Andes.
The Cassini spacecraft has observed geysers erupting on Saturn’s moon Enceladus since 2005. Now, scientists at the University of Chicago and Princeton University have pinpointed a mechanism by which cyclical tidal stresses exerted by Saturn can drive Enceladus’s long-lived eruptions.
Berkeley Lab scientists have discovered a family of nature-inspired polymers that, when placed in water, spontaneously assemble into hollow crystalline nanotubes. What’s more, the nanotubes can be tuned to all have the same diameter of between five and ten nanometers, depending on the length of the polymer chain.
A new mathematical model shows how fertility goes down as the cost of achieving social status goes up.
UAB researchers use novel approach with historic film to discover just how endangered Kemp’s ridley sea turtles are.
Researchers have identified a single, universal facial expression that is interpreted across many cultures as the embodiment of negative emotion. The look proved identical for native speakers of English, Spanish, Mandarin Chinese and American Sign Language (ASL). It consists of a furrowed brow, pressed lips and raised chin, and because we make it when we convey negative sentiments, such as “I do not agree,” researchers are calling it the “not face.”
Saving seagrass isn’t just a pipefish dream. That’s the claim of a new Practitioners perspective article written by researchers from Swansea University and Cardiff University who help run the marine conservation charity Project Seagrass.
UC Berkeley biologists have discovered the switch that triggers the power kick sperm use to penetrate and fertilize a human egg, uncovering a possible source of male infertility but also a potential target for contraceptives that work in both men and women.
Although tuberculosis (TB) is commonly thought of as being a disease that mainly affects nineteenth century poets and Victor Hugo characters, it is still the second-most common cause of mortality from an infectious disease in the world, killing nearly three people every minute.
The types of gene mutations that contribute to autism are more diverse than previously thought, report researchers at University of California, San Diego School of Medicine in the March 24 online issue of The American Journal of Human Genetics. The findings, they say, represent a significant advance in efforts to unravel the genetic basis of autism spectrum disorder (ASD).
A new study led by researchers at The Saban Research Institute of Children’s Hospital Los Angeles (CHLA) reports that the presence of leptin – a hormone secreted by fat cells that is critical to maintaining energy balance in the body -- inhibits the prenatal development of neuronal connections between the brain and pancreas. The findings could help explain the origin of type 2 diabetes, particularly in children of obese mothers.
According to a recent study, the size of a common ground-nesting bee – an important crop pollinator – has grown smaller in heavily farmed landscapes.
Diets rich in vitamin C cut the risk of cataract progression in women by 33 percent over 10 years, according to a twins study in the journal Ophthalmology. Genetics accounted for 35 percent of the difference in cataract progression. Environmental factors, such as diet, accounted for 65 percent.
Head and neck cancer patients may no longer have to undergo invasive post-treatment surgery to remove remaining cancer cells, as research shows that innovative scanning-led surveillance can help identify the need for, and guidance of, neck dissection.
Ancient lunar ice indicates the moon's axis slowly shifted by 125 miles, or 6 degrees, over 1 billion years. Earth's moon now a member of solar system's exclusive 'true polar wander' club, which includes just a handful of other planetary bodies
Could the moon once have flopped over on its side like a child’s top? Yes, says a University of Alabama in Huntsville (UAH) scientist in Nature magazine, after he and collaborators discovered water deposits that may indicate its poles have shifted.
Research led by Johns Hopkins University scientists has found new persuasive evidence that could help solve a longstanding mystery in astrophysics: Why did the pace of star formation in the universe slow down some 11 billion years ago?
While international trade may generate economic benefits to the exporting countries, a study by researchers from the National University of Singapore revealed that benefits from trade are unable to compensate for the loss of forests and ecosystems in those countries.
Solar storms trigger Jupiter’s intense ‘Northern Lights’ by generating a new X-ray aurora that is eight times brighter than normal and hundreds of times more energetic than Earth’s aurora borealis, finds new research involving the University of Southampton.
UWM paleontologist Stephen Dornbos is on an international research team that has found fossilized multicellular marine algae, or seaweed, dating back more than 555 million years, ranking among the oldest examples of multicellular life on Earth.
Lester Loschky, associate professor of psychological sciences, recently published a study in PLOS ONE, which suggests viewers may have limited cognitive control of their eye movements while trying to understand films.
An international team used an amplification technique to sequence the genomes of two divergent Plasmodium malaria species from miniscule volumes of chimpanzee blood to find clues about the evolution and pathogenicity of Plasmodium falciparum, the deadliest malaria parasite that affects people. Understanding the origins of emerging diseases – and more established disease agents -- is critical to gauge future human infection risks and find new treatment and prevention approaches.
For the first time, researchers provided findings that link materialism, impulsive spending and personal perceptions of economic mobility. Researchers from the Johns Hopkins Carey Business School found that belief in the so-called “American Dream,” or the prospect that upward economic mobility is possible, limits impulse spending among materialistic consumers.
For the first time, a "shock breakout" in an exploding supergiant star has been discovered at visible wavelengths.An international team of astrophysicists led by Peter Garnavich, professor of astrophysics at the University of Notre Dame, has caught two supernovae in the act of exploding.
Birds living in urban environments are smarter than birds from rural environments. But, why do city birds have the edge over their country friends? They adapted to their urban environments enabling them to exploit new resources more favorably then their rural counterparts, say a team of all-McGill University researchers.
In December, the ATLAS and CMS experiments reported what could be the first hint of a new massive particle that spits out two photons as it decays. Now, physicists are presenting their latest analyses at the Moriond conference in La Thuile, Italy, including a full investigation of this mysterious bump. After carefully checking, cross-checking and rechecking the data, both experiments have come to the same conclusion—the bump is still there.
New research by astrophysicists has revealed the fastest ultraviolet winds ever detected near a supermassive black hole more than 10 billion light-years away.
Russian astronomers who created a global network of robotelescopes MASTER detected that a bright star TYC 2505-672-1 has actually faded significantly.
NSU's Guy Harvey Research Institute has been tagging and tracking sharks and billfish for years - and they continue to amaze and surprise researchers.
President Obama announced plans to close the military prison at Guantánamo Bay, Cuba. Now two scholars are proposing to transform the naval base into a marine research center and international peace park.
While researching the brain’s learning and memory system, scientists at Johns Hopkins say they stumbled upon a new type of nerve cell that seems to control feeding behaviors in mice. The finding, they report, adds significant detail to the way brains tell animals when to stop eating and, if confirmed in humans, could lead to new tools for fighting obesity.
The ability to recognize our offspring and provide preferential care to our own young is nothing unusual for us. This is much more difficult for the poison frog Allobates femoralis, a highly polygamous species that produces rather indistinguishable tadpoles. According to a study conducted by the Messerli Research Institute of Vetmeduni Vienna, male and female frogs have different strategies for offspring discrimination.
In one of the first studies to "read" the genetic activity inside individual brain cells, University of Wisconsin-Madison neuroscientist Xinyu Zhao has identified the genetic machinery that causes maturation in a young nerve cell.
Experienced bumblebees prefer not to share their foraging knowledge with newbies. Two bees were allowed to visit the flowers at a time – one more experienced resident and one newcomer. When the newcomer bees tried to copy the choices of seasoned foragers, the more experienced bees frequently attacked them and tried to evict them from flowers.
National Institutes of Health-funded scientists have developed a 3D micro-scaffold technology that promotes reprogramming of stem cells into neurons, and supports growth of neuronal connections capable of transmitting electrical signals. The injection of these networks of functioning human neural cells – compared to injecting individual cells -- dramatically improved their survival following transplantation into mouse brains. This #d technology could make transplantation of neurons a viable treatment for a broad range of human neurodegenerative disorders. The new research is supported by the National Institute of Biomedical Imaging and Bioengineering (NIBIB), part of NIH.
The health benefits of a plant-based diet is well-known, but the question remains: Could vegans be at risk for deficiency of essential nutrients? A retrospective review by Mayo Clinic physicians recently published in the Journal of the American Osteopathic Association indicated that vegans should ensure adequate intake of a few nutrients.
Scientists from The Hebrew University of Jerusalem, Columbia University Medical Center (CUMC) and The New York Stem Cell Foundation Research Institute (NYSCF) have succeeded in generating a new type of embryonic stem cell that carries a single copy of the human genome, instead of the two copies typically found in normal stem cells. The scientists reported their findings today in the journal Nature.
Scientists at Florida State University’s National High Magnetic Field Laboratory (MagLab) have demonstrated a way to improve the performance of the powerful building blocks of quantum computers by reducing interference from the environment.
A readability analysis of presidential candidate speeches by researchers in Carnegie Mellon University's Language Technologies Institute (LTI) finds most candidates using words and grammar typical of students in grades 6-8, though Donald Trump tends to lag behind the others.
Key factors that can combine to produce a Zika virus outbreak are expected to be present in a number of U.S. cities during peak summer months, new research shows.
Described in a study published by IEEE Sensors Journal, AutoDietary is like Fitbit and other wearable devices. Only instead of tracking burned calories, it monitors caloric intake – in other words, what we eat – at the neck.
Could an unhealthy diet and lack of exercise be making you age faster? Researchers at Mayo Clinic believe there is a link between these modifiable lifestyle factors and the biological processes of aging. In a recent study, researchers demonstrated that a poor diet and lack of exercise accelerated the onset of cellular senescence and, in turn, age-related conditions in mice. Results appear today in Diabetes.
Snapping shrimps, the loudest invertebrate in the ocean, may be silenced under increasing ocean acidification, a University of Adelaide study has found.
White storks are addicted to junk food and make round-trips of almost 100km to get their fix – according to new research from the University of East Anglia.
UM Rosenstiel School researchers evaluated movements of highly mobile sharks in relation to protected areas.
The remains of a new species of horse-sized dinosaur reveal how Tyrannosaurus rex became one of Earth's top predators, a study suggests.
Microbes in soil – organisms that exert enormous influence over our planet’s carbon cycle – may not be as adaptable to climate change as most scientists have presumed, according to the results of a 17-year “soil transplant” on a mountainside in eastern Washington.
University of Utah scientists identified two genes that make some pigeon breeds develop feathered feet known as muffs, while others have scaled feet. The same or similar genes might explain scaled feet in chickens and other birds, and provide insight into how some dinosaurs got feathers before they evolved into birds.
RSS
Medicine keyboard_arrow_right
Sciencekeyboard_arrow_right
Life keyboard_arrow_right
Business keyboard_arrow_right
Journal News keyboard_arrow_right
By Location keyboard_arrow_right
Meetings, Grants, and Events keyboard_arrow_right