Phys.org news

Phys.org / Purine-heavy DNA sequences protect Bacillus subtilis genes from Rho termination

In the study of bacteria, a longstanding dogma has held that two molecular machines—RNA polymerase, which leads the way in transcribing DNA into RNA, and ribosomes, which bring up the rear translating RNA into proteins—worked ...

5 hours ago
Phys.org / Scourge of satellites lighting up the sky could be mitigated with help of ultra-black coating

Astrophysicists working to tackle the growing impact of satellite constellations have pioneered a new ultra-black coating as one possible way to mitigate the problem.

12 hours ago
Phys.org / How much do friends influence teens' mental health? What a new study can (and can't) tell us

During adolescence, young people become especially sensitive to peer influence—more so than at any other time in life. So how does this affect their mental health?

12 hours ago
Phys.org / Honeybee queens push pesticides to eggs to protect themselves over their offspring, research reveals

Worker bees are the first line of defense when it comes to removing contamination in honeybee colonies, but a queen has her ways, too. A honeybee queen facing chronic exposure to pesticides will take up that contamination ...

12 hours ago
Phys.org / Brown leaves before fall could signal lasting heat damage, researchers warn

Due to increasing heat and drought, forests are turning brown more often before autumn, when leaf senescence normally occurs. It is often unclear whether the trees are actively shedding foliage to avoid a breakdown in water ...

5 hours ago
Phys.org / Compromise drives shared risky decisions, but biased blame and credit can break teamwork

Relationships are all about compromise. From deciding on where to eat dinner with a friend to negotiating chore lists at home, we often experience situations that require some flexibility. But what happens when we must work ...

6 hours ago
Phys.org / More colorful songbirds face higher extinction risk

In the humid jungle of Vietnam, Natalia Ocampo-Peñuela and Monte Neate-Clegg spent hours patiently waiting to spot the rare "Halloween bird." Officially known as the collared laughingthrush, this songbird has striking orange, ...

12 hours ago
Phys.org / Diffractive networks enable optical information transfer through random and unknown diffusers

The transmission of optical information through random scattering media is a major challenge in optics, biomedical imaging, telecommunications and remote sensing. When light passes through a turbid or diffusive medium, such ...

6 hours ago
Phys.org / Orbitronics clears key hurdle with direct orbital currents, boosting signals 100-fold

Researchers at Johannes Gutenberg University Mainz (JGU) are the first to directly utilize orbital currents without the need for conversion of the orbital current into a spin current.

6 hours ago
Phys.org / Spider venoms could stop deadly varroa mites killing honey bees

Spider venoms contain ingredients that could lead to a new treatment to protect honeybees from the deadly Varroa destructor mite, according to a study led by the University of the Sunshine Coast. Researchers identified components ...

14 hours ago
Phys.org / Harsh UVB bursts leave tadpoles with more DNA damage than longer exposure

Sunburn is a serious problem in the Southern Hemisphere, where depleted ozone provides less protection from UVB. Tadpoles are at particular risk because they are growing rapidly, making them vulnerable to UVB DNA damage. ...

14 hours ago
Phys.org / New biosensor reveals rare lipid gathers in membrane hotspots during cell stress

Inside every cell are lipid molecules that make up cellular membranes, helping organelles communicate and respond to stress. Researchers have struggled to observe lipids in action because current detection tools lack sufficient ...

18 hours ago