Intermittent fasting, and fasting in general, has been a popular fad health gimmick, but the science isn't on its side. Instead, proponents believe mice are little people so if mice weaned on starvation diets lived longer, people would also.
The carcass of a frozen mammoth with signs of weapon-inflicted injuries suggests humans were present in the Eurasian Arctic ten millennia earlier than previously thought. These results, which provide perhaps the oldest known story of human survival in the Arctic region, date human presence there to roughly 45,000 years ago, instead of 35,000 years ago, as previously thought. Paleolithic records of humans in the Eurasian Arctic are scarce. In 2012, a team led by Alexei Tikhonov excavated a partial carcass of a male woolly mammoth from frozen sediments in a coastal bluff on the eastern shore of Yenisei Bay, in the central Siberian Arctic. Through radiocarbon dating of the animal's tibia bone and surrounding materials, the researchers dated it at 45,000 years old.
The Centers for Disease Control recently released survey results from kids showing that many of them had seen some form of advertisement for e-cigarettes. Then they matched them to the uptick in e-cigarette use among young people and implied causation.
There is good news in the annual data report from the United States Renal Data System, coordinating center based at the University of Michigan Kidney Epidemiology and Cost Center, in partnership with Arbor Research Collaborative for Health.
PROVIDENCE, R.I. [Brown University] -- Combining the drug topiramate with psychological counseling curbed marijuana use among young smokers significantly more than did counseling alone, according to newly published results of a small randomized, controlled trial at Brown University. The results come with a caveat, however: many study volunteers couldn't tolerate the medicine's side effects.
There is no FDA-approved medication for treating cannabis dependence and misuse. Meanwhile, the benefits of counseling treatment, such as motivational enhancement therapy (MET), aren't enough to help many patients, said Robert Miranda Jr., associate professor (research) of psychiatry and human behavior in the Alpert Medical School.
A team of authors from MIPT, Kansas State University, and the U.S. Naval Research Laboratory have demonstrated that it is possible to fully absorb electromagnetic radiation using an anisotropic crystal. The observations are of fundamental importance for electrodynamics and will provide researchers with an entirely new method of absorbing the energy of electromagnetic waves. The paper has been published in Physical Review B.
For as much time as Americans spend saying it is the greatest country on Earth, a whole lot of people worry about creating safe spaces where free expression is not allowed, or protesting the behavior of people they don't like.
When white light is passed through a prism, the rainbow on the other side reveals a rich palette of colors. Theoretical physicists, who have increasingly migrated toward making up stuff using math, now claim using such numbers that quantum theories of gravity must also have a 'rainbow' of sorts, composed of different versions of spacetime. They further predict that instead of a single, common spacetime, particles of different energies essentially sense slightly modified versions.
No one expects much of the social sciences, so a heavy reliance on undergraduate psychology student surveys to draw conclusions and resulting lack of reproducibility is dismissed, but the National Institutes of Health is nearly half of the federal government's and lack of reproducibility in biology and other life sciences is of greater concern for that reason.
If it can't be replicated, is it science? Sure, but it's a complex explanation for the public educated on the science process.
COLUMBUS, Ohio--Right now, astronomers are viewing a ball of hot gas billions of light years away that is radiating the energy of hundreds of billions of suns. At its heart is an object a little larger than 10 miles across.
And astronomers are not entirely sure what it is.
If, as they suspect, the gas ball is the result of a supernova, then it's the most powerful supernova ever seen.
Pasadena, CA--A team of astronomers, including Carnegie's Benjamin Shappee, Nidia Morrell, and Ian Thompson, has discovered the most-luminous supernova ever observed, called ASAS-SN-15lh. Their findings are published in Science.
Dietary guidelines used to be a relatively easy process. They were considered authoritative, mainstream media dutifully portrayed them as such because they had government backing, and people obeyed.
But since 1980, when people began to obey them, obesity has skyrocketed. With public education being freed from the shackles of corporate journalists, the public had access to information outside hand-picked nutrition scholars chosen for their beliefs. And skepticism reigns.
Insects exhibit breathing patterns called discontinuous gas-exchange cycles that include periods of little to no release of carbon dioxide to the environment. Researchers who studied the respiratory patterns of 15 species of ground beetles found that these cycles may minimize the risk of infestation of an insect's tracheal system by mites and other pathogens.
The findings may help provide a more comprehensive understanding of why insects have an evolutionary advantage over other animals.
