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Phys.org / Seeing how atoms vibrate at the Ångström scale

Probing the vibration of atoms provides detailed information on local structure and bonding that define material properties. Tip-enhanced Raman spectroscopy (TERS) offers extremely high resolution to probe such vibrations. ...

14 hours ago in Nanotechnology
Phys.org / Stiff gels slow germs: Mapping the hydrogel properties that control bacterial growth

Hydrogels are soft, jelly-like materials that can absorb large amounts of water. They are widely used in medical technologies such as contact lenses and wound dressings, and are also a staple of laboratory research, where ...

14 hours ago in Chemistry
Phys.org / What honey bee brain chemistry tells us about human learning

A multi-institutional team of researchers led by Virginia Tech's Fralin Biomedical Research Institute at VTC has for the first time identified specific patterns of brain chemical activity that predict how quickly individual ...

16 hours ago in Biology
Medical Xpress / Digital twin reveals how eye cells lose their organization in leading cause of vision loss

National Institutes of Health (NIH) researchers have developed a digital replica of crucial eye cells, providing a new tool for studying how the cells organize themselves when they are healthy and affected by diseases. The ...

13 hours ago in Biotechnology
Medical Xpress / A hidden neuron 'gatekeeper' may shape Alzheimer's buildup of amyloid-beta

Brain cells are constantly swallowing material from the fluid that surrounds them—signaling molecules, nutrients, even pieces of their own surfaces—in a process known as endocytosis that is essential for learning, memory ...

14 hours ago in Neuroscience
Phys.org / Widespread loss of marine sponges possible if heat waves intensify by just 1°C

New research shows the effects of marine heat waves on sponges could be much more severe as temperatures rise. More intense marine heat waves as a result of climate change could lead to the mass loss of a sponge species found ...

14 hours ago in Biology
Medical Xpress / Minimally invasive surgery restores active dad's mobility

Stretching at the gym, AJ Starsiak felt an alarming pop in his back. Starsiak shrugged it off. An active 39-year-old father of two who plays softball and ice hockey, he was no stranger to minor injuries.

8 hours ago in Surgery
Phys.org / Mars' 'young' volcanoes prove more complex than scientists once thought

What appears to be a single volcanic eruption is often the result of complex processes operating deep beneath the surface, where magma moves, evolves, and changes over long periods of time. To fully understand how volcanoes ...

16 hours ago in Astronomy & Space
Medical Xpress / Doctors discover a simple method to predict the risk of brain tumor recurrence

Meningioma is the most common type of brain tumor. It does not develop in the brain tissue itself, but on the inside of the meninges, the membranes that surround the brain. In most cases, a meningioma is benign. However, ...

13 hours ago in Oncology & Cancer
Phys.org / 7,000-year-old deer antler headdress from Eilsleben illustrates contact between hunter–gatherers and early farmers

Central Germany is among the regions where, as early as the mid-6th millennium BC, farmers displaced the Mesolithic hunter–gatherers from the fertile loess soils. Soon after this migration, however, exchange began between ...

18 hours ago in Other Sciences
Medical Xpress / HPV cancer vaccine slows tumor growth and extends survival in preclinical model

Throughout the past decade, Northwestern University scientists have uncovered a striking principle of vaccine design: Performance depends not only on vaccine components but also on vaccine structure. After proving this concept ...

16 hours ago in Oncology & Cancer
Phys.org / Bird guano powered rise of Chincha Kingdom in Peruvian Andes, archaeologists find

New archaeological evidence reveals that seabird guano—nutrient-rich bird droppings—was not only essential to boosting corn yields and supercharging agriculture in ancient Peru, but it may have been a driving force behind ...

16 hours ago in Biology