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phys.org

Traces of Stone Age hunter-gatherers discovered in the Baltic Sea (phys.org)

In autumn 2021, geologists discovered an unusual row of stones, almost 1 km long, at the bottom of Mecklenburg Bight. The site is located around 10 kilometers off Rerik at a 21-meter water depth. The approximately 1,500 stones are aligned so regularly that a natural origin seems unlikely....

3D printing technology for tissue: Researchers combine hydrogels and fibers (phys.org)

In the latest study by Prof. Dr. Leonid Ionov, Professor of Biofabrication, and his team at the University of Bayreuth, various types of hydrogels were extensively tested for the 3D printing of tissues. A hydrogel is a water-retaining and also water-insoluble polymer. In addition, the cell containing–hydrogels, also known as...

'Old smokers' and 'squalling newborns' among hidden stars spotted for first time (phys.org)

‘Hidden’ stars including a new type of elderly giant nicknamed ‘old smoker’ have been spotted for the first time by astronomers. The mystery objects exist at the heart of our Milky Way galaxy and can sit quietly for decades—fading almost to invisibility—before suddenly puffing out clouds of smoke, according to new...

Insect populations flourish in the restored habitats of solar energy facilities (phys.org)

Bumblebees buzz from flower to flower, stopping for a moment under a clear blue Minnesota sky. Birds chirp, and tall grasses blow in the breeze. This isn’t a scene from a pristine nature preserve or national park. It is nestled between photovoltaic (PV) solar arrays on rehabilitated farmland....

Male power over females is not the default social dynamic in primates, says study (phys.org)

Male dominance has long been assumed to be nearly universal in primates, with female power viewed as a rare exception to the rule. However, according to researchers at The University of Texas at Austin, female-biased power structures or social equality between the sexes can be found within every major primate group and probably...

Slight male navigational advantage likely due to cultural differences, researchers find (phys.org)

A team of psychologists, social scientists, philosophers and evolutionary researchers affiliated with multiple institutions in the U.S. has found evidence suggesting that the slight advantage males have in navigation ability is likely due to differences in the ways male and female children are raised....

Researchers create faster and cheaper way to print tiny metal structures with light (phys.org)

Researchers at the Georgia Institute of Technology have developed a light-based means of printing nano-sized metal structures that is significantly faster and cheaper than any technology currently available. It is a scalable solution that could transform a scientific field long reliant on technologies that are prohibitively...

Ocean temperatures helped make 2023 the hottest year ever recorded (phys.org)

A multi-national team of scientists (China, U.S., New Zealand, Italy, and France) analyzes the temperature of the Earth annually. These scientists have found a fever that increases every year: For the past decade, each year has been hotter than the prior year in the ocean, and there are other changes in the ocean that also...

Deepen your empathy by reading more and reading more often, linguist says (phys.org)

Reading stories regularly strengthens social-cognitive skills—such as empathy—in both children and adults. And this, in turn, ensures that we can empathize with characters more effectively and more quickly when we are reading. This is the subject of linguist Lynn Eekhof’s Ph.D., which she will receive at Radboud University...

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