Physical mechanisms explaining DNA and RNA twist changes
The double-helix structure of DNA is deformed by environmental stimuli, which will then affect gene expression, and eventually trigger a sequence of cellular processes. Recent research led by a physicist from City University of Hong Kong (CityU) obse.....»»
Energy transmission in quantum field theory requires information: Research finds surprisingly simple relationship
An international team of researchers has found a surprisingly simple relationship between the rates of energy and information transmission across an interface connecting two quantum field theories. Their work was published in Physical Review Letters.....»»
Generating spin currents directly using ultrashort laser pulses
An international team of physicists has found that it is possible to generate spin currents directly using certain kinds of ultrashort laser pulses. In their study, published in the journal Physical Review Letters, the group used a linearly polarized.....»»
Organization of DNA in chromosomes can be explained by weak interactions between nucleosomes, research suggests
An article by UAB professor Joan-Ramon Daban analyzes in depth the physical problems associated with DNA packaging that have often been neglected in structural models of chromosomes......»»
Neural network improves tunable diode laser absorption spectroscopy quantification accuracy
A research group from the Hefei Institutes of Physical Science (HFIPS) of the Chinese Academy of Sciences recently developed a neural network-based absorbance recovery method to improve the accuracy of single path tunable diode laser absorption spect.....»»
AirPods 4 tidbits: Secret capacitive button, Vision Pro lossless
Historically, AirPods cases have always had a physical button on the back to initiate pairing with your iPhone. With the announced this week, however, Apple is switching things up. Instead of a physical pairing button, the AirPods 4 case has a hidde.....»»
Human "molecular map" contributes to the understanding of disease mechanisms
Scientists at Weill Cornell Medicine in Qatar (WCM-Q) have created an intricate molecular map of the human body and its complex physiological processes based on the analysis of thousands of molecules in blood, urine and saliva samples from 391 volunt.....»»
iPhone 16 Camera Control is about to free up a lot of Action buttons
iPhone 16 and iPhone 16 Pro introduce a new Camera Control button. As I’m thinking about this physical hardware button, it occurs to me that I’m sort of getting an Action button for the first time — despite currently being an iPhone 15 Pro Max.....»»
The PS5 Pro brings the game console’s disc drive era to an end
Sony relegates physical game discs to a peripheral afterthought. Enlarge / Notice anything missing from the one and only model of the PS5 Pro? (credit: Sony) Here at Ars, we've been publicly musing about whether the worl.....»»
Researchers reveal the mechanisms behind cobalt X-ide electrocatalysts
The unsung heroes of electrochemical reactions—electrocatalysts—can assist in optimizing factors such as the reaction's speed, yield, and energy consumption. As such, these electrocatalysts are crucial for optimizing large-scale production in the.....»»
Overcoming magnetic disorder: Toward low-energy topological electronics
Overcoming magnetic disorder is key to exploiting the unique properties of quantum anomalous Hall (QAH) insulators. A Monash-led team has demonstrated that the breakdown in topological protection is caused by magnetic disorder, explaining previous ob.....»»
Science fair project leads to new research explaining the glugging effect
As Rohit Velankar, now a senior at Fox Chapel Area High School, poured juice into a glass, he could feel that the rhythmic "glug, glug, glug" was flexing the walls of the carton......»»
Unlocking plant defense: Bacterial hijacking exposed
Bacterial wilt caused by Ralstonia solanacearum poses a severe threat to agriculture worldwide, affecting numerous crops. The pathogen's arsenal of type III effectors (T3Es) enables it to manipulate host defense mechanisms, aiding infection. One majo.....»»
New dense sub-Saturn exoplanet discovered
Using the Transiting Exoplanet Survey Satellite (TESS), astronomers from the Physical Research Laboratory (PRL) in Ahmedabad, India and elsewhere, have detected a new sub-Saturn exoplanet with a relatively high density. The finding was reported in a.....»»
Scientists demonstrate first experimental evidence of non-Hermitian edge burst in photonic quantum walks
In a new Physical Review Letters study, scientists have demonstrated the first experimental observation of non-Hermitian edge burst in quantum dynamics using a carefully designed photonic quantum walk setup......»»
Iron-doped carbon-based nanoparticles boost cancer treatment with enhanced precision and safety
Recently, a collaborative research team led by Prof. Wang Hui and Prof. Qian Junchao from Hefei Institutes of Physical Science of the Chinese Academy of Sciences designed a catalytically active, photoresponsive, Fe-doped carbon nanoparticle (FDCN) fo.....»»
No one wanted these PS5 Concord discs until Sony stopped making them
eBay prices have risen quickly less than a week since online game's shutdown. If you paid $40 for the physical edition of Concord, you can make a lot more than that back on eBa.....»»
Electrically modulated light antenna points the way to faster computer chips
Today's computers reach their physical limits when it comes to speed. Semiconductor components usually operate at a maximum usable frequency of a few gigahertz—which corresponds to several billion computing operations per second......»»
Uncovering the unique roles of Exportin-5 in RNA export within Drosophila cells
Eukaryotic cells are complex biological units, each with multiple membrane-bound compartments. These cells use specialized mechanisms to export biomolecules from their synthesis site to where they function......»»
Plot twist: How giving old graveyards new life as parks can improve our cities
Old graveyards are a forgotten land asset that can find new life as urban parks in crowded cities. As the density of our cities increases, efficient use of urban land becomes paramount. In particular, land for urban parks becomes more important and h.....»»
Why do materials get stronger when they are deformed? Research sheds light on universal mechanisms of work hardening
The earliest blacksmiths in the Bronze and Iron Ages figured out that when they deformed metal through bending or hammering, it became stronger. This process, known as work or strain hardening, is still used widely in metallurgy and manufacturing tod.....»»