Phys.org news

Phys.org / Three DNA loops prove essential for efficient wing tissue regeneration in fruit flies

After an injury, DNA not only changes its activity but also the way it is organized spatially within the cell nucleus. In this process, certain regions of DNA establish new physical contacts through chromatin loops that act ...

16 hours ago
Phys.org / Common wastewater pollutant turns male minnows into poorer parents and fiercer rivals

A team of researchers has found that a common wastewater pollutant turned male fathead minnows into worse fathers and fiercer rivals, revealing ecological impacts that laboratory studies missed.

16 hours ago
Phys.org / A painting signed 'L daVinci': Analysis reveals Renaissance pigments and later alterations

Researchers at Uppsala University have analyzed the color pigments in a historical painting signed "L daVinci." Most of the pigments are consistent with materials used during the Renaissance, while a more recent pigment appears ...

18 hours ago
Phys.org / Peptide position determines whether gold nanoparticles branch or stay spherical

The position of biomineralization peptides within liposomes can influence how gold nanoparticles grow, reports a research team from the Institute of Science Tokyo. Peptides localized at the membrane interface promote branched ...

17 hours ago
Phys.org / Series of reactions reveals how complex carbon chemistry can begin in frigid space

Before there was Earth, there was chemistry. In the unimaginable cold, dark clouds where stars and planets are born, carbon molecules assemble into more complex forms—starting a chemical journey that could eventually deliver ...

19 hours ago
Phys.org / 40-year-old prediction of how plastics 'mix' confirmed for the first time

A "mixing" phenomenon between plastic layers that had been predicted only in theory for 40 years has now been experimentally confirmed.

19 hours ago
Phys.org / Getting photons into shape for reliable quantum communication

The vast majority of modern quantum technologies—from quantum cryptography to the quantum internet to the quantum computer—rely on one essential element: the transmission of photons. Two qubits (two atoms, for example) exchange ...

21 hours ago
Phys.org / Cancer-linked protein binds to chromosome in unexpected way, study finds

A new 3D structure of a cancer-linked protein bound to its cellular partner reveals details of how the protein binds to chromosomes and could offer insights for future disease treatments. The protein—BRD4—plays a critical ...

19 hours ago
Phys.org / Unused natural gas behind NYC's $300 million waste of a potent greenhouse gas

Methane emissions from the New York City metropolitan area are largely driven by natural gas use, according to a new study published today in Atmospheric Chemistry and Physics by researchers at the Lamont-Doherty Earth Observatory, ...

18 hours ago
Phys.org / Chocolate's new climate threat: Too much rain

Cocoa farmers in West Africa cannot stop intense downpours from damaging their crops. But they may be able to anticipate the risk and prepare, protecting both their livelihoods and their plants, the source of one of the world's ...

18 hours ago
Phys.org / Lebanon: 400,000 years of climate and landscape history rediscovered

An international research team led by Dr. Gabriele Russo of the Senckenberg Centre for Human Evolution and Palaeoenvironment at the University of Tübingen has re-examined historical fossil collections from Lebanon using modern ...

22 hours ago
Phys.org / How can countries prevent shocks and disasters from turning into food crises? Analysis points to resilience measures

Floods, wildfires, conflicts, earthquakes, economic shocks, hurricanes or epidemics: These unexpected and often dramatic events affect people's lives and jobs, destroy crops, wipe out livestock and stored food, contaminate ...

18 hours ago