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Retail mogul Yusaku Maezawa has launched another competition, offering to invest a total of 10 billion Japanese yen ($91 million) in the businesses of 10 entrepreneurs.

The Japanese billionaire announced on Twitter on Friday that he would look to expand the businesses he picked, with the aim of them listing on a stock exchange, according to a translation.

He shared a link to a website outlining the terms of the competition, which explained that entrepreneurs had to email their business proposals to enter, including details as to how they would spend the funds among other information.

A new review from the FDA says it finds no evidence linking the two, but that research should continue.

The findings: The report reviewed 125 experiments carried out on animals and 75 on humans between 2008 and August 2019. In summary, the FDA said that there’s “no consistent pattern” to link radiofrequency radiation, or RFR, to tumors or cancer.

Rats don’t use cell phones the way humans do. An overarching problem with the animal studies in the review is that they don’t mimic how humans actually use their phones. Animal studies often douse a rat’s entire body in radiation at levels that are far higher than what humans are normally exposed to when we use cell phones. The human studies were also flawed, relying only on questionnaires from family members or observational data.

Scientific studies continue to show us how exercise can bring a range of cognitive benefits, from limiting the risk of Alzheimer’s to giving an immediate boost to our learning capabilities. Researchers working in this area at the University of South Australia have turned their attention to neuroplasticity, finding two styles of workout in particular that give this key brain function the biggest boost.

Neuroplasticity refers to the brain’s ability to rewire the neural connections as we go through life, whether that be in response to certain experiences, building memories, learning new skills or adapting to new environments. In this way, it is seen as critical to the development of a healthy brain from infancy all the way through to adulthood, and the authors of this new study set out to dig into how exercise can influence these vital pathways.

“We already know that engaging in regular aerobic exercise is good for the brain, improving memory, attention and learning,” says co-author Dr Ashleigh Smith. “However, we need to understand why it is so beneficial and what the best exercise, intensity and duration is.”

University of Bayreuth researchers, together with scientists from Italy and China, have for the first time systematically investigated under which conditions, and to what extent, sulphur-containing arsenic compounds are formed in rice-growing soils. To date, these thioarsenates have not been taken into account in assessments of the health effects of rice consumption. In the journal Nature Geoscience the scientists present their results and identify the urgent need for research with a view to protecting consumers from health risks.

A new measuring method for thioarsenates

The research team, headed by the Bayreuth environmental geochemist Prof. Dr. Britta Planer-Friedrich, has developed a measuring method by means of which thioarsenates in soils can be reliably detected. Up to now, the methods routinely used to monitor in rice fields have not been sufficient for this purpose. This is because they are not able to identify sulphur-containing arsenic compounds as such, or to distinguish them from oxygen-containing arsenic compounds. This shortcoming is highly problematic in terms of possible . At least one organic sulphur-containing arsenic compound discovered in rice fields is already known to be carcinogenic. This makes it all the more important to specifically detect organic sulphur-containing arsenic compounds, and to examine them for their toxicity. Presumably, these compounds have been confused with non-toxic organic oxygenated arsenic compounds up to now due to inadequate measurement procedures.