Physicists have taken a step toward making 'metalenses' even more useful -- by making them reconfigurable. They did this by harnessing nanoscale forces to infiltrate liquid crystals between those microscopic pillars, allowing them to shape and diffract the light in completely new ways -- 'tuning' the focusing power, one of the researchers said.

Researchers have fashioned ultrathin silicon nanoantennas that trap and redirect light, for applications in quantum computing, LIDAR and even the detection of viruses.

On-duty firefighters experienced higher exposures of polycyclic aromatic hydrocarbons, or PAHs, which are a family of chemicals that are known to have the potential to cause cancer.

Over the course of the coronavirus epidemic, COVID-19 outbreaks have hit communities across the United States. As clusters of infection shift over time, local officials are forced into a whack-a-mole approach to allocating resources and enacting public health policies. Geographers hope that timely, localized data will help inform future decisions, and one day predict where hotpots will emerge.

Scientists have discovered a molecule that can activate a natural immune-boosting protein called STING. The findings mark a key advance in the field of oncology, as the STING protein is known for its strong antitumor properties.

Researchers used an ultrathin graphene 'sandwich' to create a tiny magnetic field sensor that can operate over a greater temperature range than previous sensors, while also detecting miniscule changes in magnetic fields that might otherwise get lost within a larger magnetic background.

Medical researchers noted improvements in body composition, fat distribution and metabolic health in response to an eight-week very low-carbohydrate diet. Older adults with obesity are at particularly high risk of developing cardiometabolic disease such as Type 2 diabetes and cardiovascular disease. Rather than total fat mass, deposition of fat in certain areas, such as the abdominal cavity and...

Even in earlier warm periods there were pulse-like releases of CO2 to the atmosphere. Today's anthropogenic CO2 rise, however, is more than six times larger and almost ten times faster than previous jumps in the CO2 concentration.

There are well documented risk factors associated with developing substance use disorder across all age groups. A recent study found those risk factors affect age groups differently and proposes a primary prevention strategy for substance use disorder that is individualized for people within defined age groups.

A new pilot study suggests that COVID-19 is causing significant dilation of the blood vessels of the lung, specifically the capillaries.

The prevalence of morbid obesity in a population is associated with negative outcomes from COVID-19, according to a new analysis of morbid obesity data and reported COVID-19 deaths in the United States.

The neurons of layer 6 - the deepest layer of the cortex - were examined by researchers to uncover how they react to sensory stimulation in different behavioral states.

New nanoscale devices, made of synthetic proteins, have been designed to target a therapeutic agent only to cells with a specific, predetermined combinations of cell surface markers. They operate on their own and search out cells they were programmed to find. The hope is that they might guide CAR T cancer therapy, and other treatments where precision is critical, through a sort of molecular...

Three mummified animals from ancient Egypt have been digitally unwrapped and dissected by researchers, using high-resolution 3D scans that give unprecedented detail about the animals' lives -- and deaths -- over 2000 years ago. The three animals - a snake, a bird and a cat - are from the collection held by the Egypt Centre at Swansea University. Previous investigations had identified which animals...

Robotic surgery for patients with early stage, oropharyngeal squamous cell cancer is associated with improved health outcomes, including better long-term survival, according to a new study. Oropharyngeal cancer occurs in the back of the throat and includes the base of the tongue and tonsils.

Using Greenland ice cores, new research is the first to confirm the longstanding assumption that climate changes between the tropics and the Arctic were synchronized during the last glacial period.

The Greenland Ice Sheet recorded a new record loss of mass in 2019. This was the finding of a team of international researchers after evaluating data from satellite observations and modelling data.

Researchers are developing ready-to-use, off-the-shelf therapeutic T cells. These are genetically engineered T cells that are manufactured from normal, healthy donors. The cells are expanded and well characterized, and have shown to be effective at killing cancer cells.

Immunization of mice with a new vaccine consisting of fungal particles loaded with Staphylococcus aureus (S. aureus) proteins protects mice against S. aureus infection, according to a new study.

A new catalyst design enables unprecedented control over the modification of fatty acid derivatives that opens the door to creating useful substances in a green and efficient manner.

A unique collaboration between paleontologists, mechanical engineers and biomedical engineers revealed that the trabecular bone structure of hadrosaurs and several other dinosaurs is uniquely capable of supporting large weights, and different than that of mammals and birds.

Exoskeletons, many of which are powered by springs or motors, can cause pain or injury if their joints are not aligned with the user's. To help manufacturers and consumers mitigate these risks, researchers have developed a new measurement method to test whether an exoskeleton and the person wearing it are moving smoothly and in harmony.

Scientists propose a new method to confine light in an atomically thin graphene layer by leveraging topological phenomena that occur at the interface of specially designed nanomaterials.

A new study demonstrates that people are more concerned about whether their family members could contract COVID-19 or if they are unknowingly spreading the virus themselves than they are with contracting it. The study also shows how increased resilience is able to reduce rates of anxiety and depression during the pandemic.