A research team led by UCLA and the University of Rochester has demonstrated a promising evolution of an imaging system designed to capture details within "complex media," which scatter light, from depicting structures inside body tissue to seeing obstacles through heavy fog. The system uses physics-based machine learning to improve an existing imaging technique.
Semiconductor surfaces can generally be studied only with considerable experimental effort, for example, in an ultrahigh vacuum. To more easily gain new insights into their properties and the possibilities for targeted modification, scientists at Heidelberg University have developed a molecular model for the so-called "buckled dimer" using synthetic and computational chemistry methods.
Social networks, intended to bring people together, can actually increase polarization, new research finds, because while the links in the network may be plentiful, they're probably weak. A research team including Cornell sociologist Michael Macy has found that while the growing number of international contacts enabled by modern communications technologies may indeed contribute to greater polarization, as shown in previous studies, the underlying mechanism does not necessarily depend on an increase in close friendships. Instead, weaker social ties appear to play a more significant role, as they are more likely to foster hierarchical structures shaped by social status.
Controlling how oxygen reacts is important for improving technologies such as batteries, fuel cells and environmentally sustainable chemical processes. A research team led by professor Seung Jun Hwang from KAIST's Department of Chemistry has developed a molecular system capable of directing oxygen activation along a selected electron-transfer pathway.
France recorded at least 5,700 more deaths than usual during a historic heat wave last month, the public health agency said Wednesday, sharply increasing its estimates of the feared toll from record-shattering temperatures.
In recent years, it has become commonplace to see people selecting potential partners with the same gestures (and enthusiasm) they use to scroll through videos on TikTok or browse products in an online store. Swipe right for interest; swipe left to move on. What once involved the drama of meeting someone—glances, hesitation, approaching, rejection, discovery—has been compressed into almost "gamified" interfaces. Dating apps have expanded the possibilities for meeting people, but research in social psychology indicates that more options do not always mean greater satisfaction, more stable relationships or better outcomes for all users.
A genomic surveillance study has shed new light on how an invasive urban malaria mosquito species spread from Asia to Africa, potentially threatening public health across a rapidly urbanizing continent where malaria is mainly concentrated in rural areas.
The American chestnut tree was a dominant and iconic species in many Appalachian forests until it was devastated by an introduced fungus from Asia called chestnut blight.
Antibiotics are a medical marvel, but many microbes are gaining the ability to resist and tolerate these therapeutics. St. Jude Children's Research Hospital scientists have uncovered how S. pneumoniae adapts to antibiotic exposure and immune pressures. Their findings reveal that changes in RNA regulation enable bacteria to enter a state of antibiotic tolerance. The results provide a deeper understanding of how pathogens survive treatment and could inform strategies to improve the effectiveness of existing antibiotics. The findings were published in Cell Host & Microbe.
New research from the University of St Andrews has found that metal production carbon footprints could be more than 10 times higher than previously estimated, with serious implications for the ambition to reach net zero.
