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Updated: 3 hours 51 min ago
A breakthrough discovery into how living cells process and respond to chemical information could help advance the development of treatments for a large number of cancers and other cellular disorders that have been resistant to therapy.
Scientists have discovered a new way by which metabolism is linked to the regulation of DNA, the basis of our genetic code. The findings may have important implications for the understanding of many common diseases, including cancer.
With 'ribbons' of graphene, width matters: A narrow enough ribbon will transform a high-performance conductor into a semiconductor
Using graphene ribbons of unimaginably small widths -- just several atoms across -- a group of researchers has found a novel way to "tune" the wonder material, causing the extremely efficient conductor of electricity to act as a semiconductor. In principle, their method for producing these narrow ribbons -- at a width roughly equal to the diameter of a strand of human DNA -- and manipulating the ribbons' electrical conductivity could be used to produce nano-devices.
Researchers have discovered that an enzyme involved in intracellular signaling plays a crucial role in developing metabolic syndrome, a finding that has a spinoff company developing a drug to potentially treat the condition.
Determining the age of stars has long been a challenge for astronomers. Astronomers now show that 'infant' stars can be distinguished from 'adolescent' stars by measuring the acoustic waves they emit.
Rethinking the coral reef: How algal and coral cover affect the microscopic life that call the reef home
Biologists have shown that inhabited coral islands that engage in commercial fishing dramatically alter their nearby reef ecosystems, disturbing the microbes, corals, algae and fish that call the reef home.
Researchers have developed an economical, reliable and heavy metal-free chemical reaction that yields fully functional 1,2,3-triazoles. Triazoles are chemical compounds that can be used as building blocks for more complex chemical compounds, including pharmaceutical drugs.
DNA -- the carrier of genetic information -- is constantly threatened by damage originating from exogenous and endogenous sources. Very special DNA lesions are DNA-protein crosslinks -- proteins covalently linked to DNA. So far hardly anything was known about repair mechanisms specifically targeting DNA-protein crosslinks. Scientists have now discovered a protease that is able to chop down the protein component of DNA-protein crosslinks, thereby enabling organisms to copy their genetic information even if crosslinks arise. The results of this study have major implications for the understanding of genome integrity and cancer development.
Researchers announced the discovery of a gene zic-1 that enables stem cells to regrow a head after decapitation in flatworm planarians. Many species across the animal kingdom have the ability to regenerate, but the mechanisms that connect injuries to stem cell activation and the production of new tissues are not fully understood.
Timeline of human origins revised: New synthesis of research links changing environment with Homo's evolutionary adaptability
Many traits unique to humans were long thought to have originated in the genus Homo between 2.4 and 1.8 million years ago in Africa. Although scientists have recognized these characteristics for decades, they are reconsidering the true evolutionary factors that drove them.
Mysteries about controversial signals from a star considered a prime target in the search for extraterrestrial life now have been solved. The research proves, for the first time, that some of the signals actually are from events inside the star itself, not from the two so-called 'Goldilocks planets,' which were suspected to be just-right for life and orbiting the star at a distance where liquid water potentially could exist. No planets there, just star burps.
Researchers have observed the fractional quantum Hall effect in bilayer graphene and shown that this exotic state of matter can be tuned by an electric field.
The dramatic increase in earthquakes in central Oklahoma since 2009 is likely attributable to subsurface wastewater injection at just a handful of disposal wells, finds a new study.
A third of the global population is infected with the bacterial pathogen that causes tuberculosis. Most carriers control the infection and are asymptomatic, but severe forms of the disease kill over a million people every year. A new article now identifies a factor made by the host that exacerbates lung damage in severe TB. The results also suggest why gene mutations that render the factor inactive are common.
Participants between the ages of 11 and 36 received either the two drugs or a placebo while continuing their insulin injections. The group receiving the drugs did not experience an improvement in insulin production, but some study participants whose GLP-1 and gastrin levels increased may have better preserved beta cell levels.
People are focused on the external world and don’t enjoy spending much time alone thinking, according to a new study. The investigation found that most would rather be doing something -- possibly even hurting themselves -- than doing nothing or sitting alone with their thoughts.
Discovery expands search for Earth-like planets: Newly spotted frozen world orbits in a binary star system
A newly discovered planet is expanding astronomers’ notions of where Earth-like—and even potentially habitable—planets can form, and how to find them. At twice the mass of Earth, the planet orbits one of the stars in the binary system at almost exactly the same distance from which Earth orbits the sun. However, because the planet's host star is much dimmer than the sun, the planet is much colder thanEarth -- a little colder, in fact, than Jupiter's icy moon Europa.
Researchers have developed a microfluidic technique for fabricating a new class of metal-organic framework (MOF) membranes inside hollow polymer fibers that are just a few hundred microns in diameter. The new fabrication process, believed to be the first to grow MOF membranes inside hollow fibers, could potentially change the way large-scale energy-intensive chemical separations are done.
Intimate partner violence is a significant health issue faced by women veterans, but little has been known up until now about their preferences for IPV-related care. A new study has found that most of these women support routine screening for IPV and want options, follow-up support, transparent documentation and Veterans Health Administration and community resources.
A hotpot with chicken is one of the primary risk factors for a campylobacter infection in Switzerland in winter, a new study shows. At the end of each year, the reported case numbers of this severe intestinal infection increase in Switzerland. According to the new study, this increase over the festive season can be attributed to the consumption of Hot Pots.