Category: Science

Exceptionally large transverse thermoelectric effect produced by combining thermoelectric and magnetic materials

Exceptionally large transverse thermoelectric effect produced by combining thermoelectric and magnetic materials

A research team has demonstrated that a simple stack of thermoelectric and magnetic material layers can exhibit a substantially larger transverse thermoelectric effect — energy conversion between electric and heat currents that flow orthogonally to each other within it — than existing magnetic materials capable of exhibiting the anomalous Nernst effect. This mechanism may be used to develop new types of thermoelectric devices useful in energy harvesting and heat flux sensing. …read more

This sound-suppressing silk can create quiet spaces

This sound-suppressing silk can create quiet spaces

Researchers developed a silk fabric, which is barely thicker than a human hair, that can suppress unwanted noise and reduce noise transmission in a large room. …read more

Could getting enough sleep help prevent osteoporosis?

Could getting enough sleep help prevent osteoporosis?

In people’s early- to mid-20s, they reach what is called peak bone mineral density, which is higher for men than it is for women, according to researchers. This peak is one of the main determinants of fracture risk later in life. After reaching this peak, a person’s bone density remains roughly stable for a couple of decades. Then, when women enter the menopausal transition, they experience accelerated bone loss. Men also experience bone density decline as they age. Sleep patterns also evolve over time. …read more

It flickers, then it tips — study identifies early warning signals for the end of the African humid period

It flickers, then it tips — study identifies early warning signals for the end of the African humid period

Tipping points in the climate system can be the result of a slow but linear development. However, they can also be accompanied by a ‘flickering’, with two stable climatic states that alternate before a final transition occurs — and the climate tips permanently. …read more

Emergency department packed to the gills? Someday, AI may help

Emergency department packed to the gills? Someday, AI may help

Emergency departments nationwide are overcrowded and overtaxed, but a new study suggests artificial intelligence (AI) could one day help prioritize which patients need treatment most urgently. …read more

AI predicts tumor-killing cells with high accuracy

AI predicts tumor-killing cells with high accuracy

Using artificial intelligence, scientists have developed a powerful predictive model for identifying the most potent cancer killing immune cells for use in cancer immunotherapies. …read more

Geologists, biologists unearth the atomic fingerprints of cancer

Geologists, biologists unearth the atomic fingerprints of cancer

Earth scientists have long turned to minute differences in hydrogen atoms to explore the ancient history of our planet. A new study suggests that these same tiny atoms might also lead to new ways to track the growth of cancer. …read more

Sister cities can help communities better navigate the climate crisis

Sister cities can help communities better navigate the climate crisis

Anthropologists suggest in a new study that establishing networks of ‘sister cities’ dedicated to addressing the impact of natural disasters can mitigate the devastation wrought by climate change. …read more

Aligned peptide ‘noodles’ could enable lab-grown biological tissues

Aligned peptide ‘noodles’ could enable lab-grown biological tissues

Researchers have developed peptide-based hydrogels that mimic the aligned structure of muscle and nerve tissues, which could enable the development of functional lab-grown tissue. …read more

Quantifying U.S. health impacts from gas stoves

Quantifying U.S. health impacts from gas stoves

A new study of air pollution in U.S. homes reveals how much gas and propane stoves increase people’s exposure to nitrogen dioxide, a pollutant linked to childhood asthma. Even in bedrooms far from kitchens, concentrations frequently exceed health limits while stoves are on and for hours after burners and ovens are turned off. …read more