Mathematics

Mathematical framework maps landscape of student knowledge via short quizzes

When we learn something new, that information does not exist in isolation. It integrates into the complex landscape of our knowledge, forging connections with existing ideas and opening up possibilities for new learning. ...

Evolution

Stolen chloroplasts maintained by host-made proteins offer clues to plant cell origins

Every plant cell is the product of a biological merger billions of years ago. Chloroplasts are key structures in plants and algae that capture sunlight, but originally they were free-living bacteria that took up residence ...

Quantum computers could have a fundamental limit after all

The performance of quantum computers could cap out after around 1,000 qubits, according to a new analysis published in the Proceedings of the National Academy of Sciences. Through new calculations, Tim Palmer at the University ...

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Medical Xpress

Tech Xplore

How soil microbes may control the future of our planet

The soil beneath our feet is a huge carbon bank storing up to approximately three times more carbon than the entire atmosphere. That makes it a significant player in the future of our climate. If even a small fraction of ...

Why a canceled meeting feels so liberating

Unless your employer is Lumon Industries, where the "Severance" workday never ends, a canceled meeting can feel like a gift of limitless time. A Rutgers University study published in the Journal of the Association for Consumer ...

New rare bird species discovered in Japan

A previously unknown species of leaf warbler has been discovered in Japan. The Ijima's Leaf Warbler has proven to be two different species, not just one. Every year, a few new bird species are identified around the world. ...

Large craters offer clues to the origin of asteroid 16 Psyche

Even 200 years after asteroid 16 Psyche was discovered, astronomers continue to puzzle over its formation. Psyche is the 10th-most massive asteroid in the main belt between Mars and Jupiter, and the largest known metallic ...

Past intensive whaling threatens the future of bowhead whales

A unique collection of prehistoric bowhead whale bones, dating back 11,000 years, reveals a previously untold story of the relative impacts of humans on nature. The time series of ancient fossils show that commercial hunting ...

'Junk DNA' may help defend against colorectal cancer

For decades, large portions of the human genome were labeled "junk DNA." New research from Western University and London Health Sciences Centre Research Institute (LHSCRI) suggests these overlooked sequences may help protect ...

Heart disease risk tied to certain molecules made by gut microbes

In a study involving data from thousands of people, the risk of a new coronary heart disease diagnosis was statistically associated with bloodstream levels of nine specific molecules that are produced by gut microbes. Danxia ...

Curiosity studies nodules on Mars boxwork formations

NASA's Curiosity Mars rover discovered these bumpy, pea-sized nodules while exploring a region filled with boxwork formations—low ridges standing roughly 3 to 6 feet (1 to 2 meters) tall with sandy hollows in between. This ...

Women more likely to choose wine from female winemakers

Promoting women's ownership in wineries can boost sales among the largest group of U.S. wine consumers, who happen to be women. Messages like "proudly made by a woman winemaker" increased women's intentions of purchasing ...

Curiosity takes its closest look yet at Martian spiderwebs

In this age of Mars rovers, questions about the planet's ancient past have shifted. A growing body of evidence supports the idea that Mars was once warm and wet. Now researchers are focused on the timeline of the red planet's ...

Genetic mapping of rice stink bug aids crop pest control

Even though farmers have been dealing with rice stink bugs as pests since the 1880s, entomologists are still getting to know them at the genetic level. A first-of-its-kind study published on the genetics of rice stink bugs ...

The wonders of daisies: The buffet we walk on

A yellow disk with rays of white—an icon of childhood drawings and a flower with healing properties. We have picnics on it, play football on it and make daisy chains out of it.