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In what appears to be a very promising breakthrough for the treatment of rectal cancer, a small drug trial conducted in the US found every patient treated in the experiment had their cancer successfully go into remission.
A team of researchers from the University of Shanghai for Science and Technology and the University of Dayton has developed a way to bend light into a vortex ring using mirrors, lasers and lenses. In their study, published in the journal Nature Photonics, the group built on work done by other teams in which vortex rings were observed incidentally, and then mathematically designed a system that could generate them on demand.
In 2016, another team of researchers discovered that under the right circumstances, strong pulses of light swirling around a central pipe-shaped pulse, could sometimes form into a donut-shaped vortex. Intrigued by the finding, the researchers with this new effort began to wonder if it might be possible to create such vortex rings on demand.
They started by studying the properties and conditions that had led to the formations observed by the team in 2016 and applied mathematics to the problem. They found solutions that appeared to show how such rings could be madeâsolutions to Maxwellâs equations, in particular, they found, could be used to generate the kind of conformal mapping required.
Axon has paused work on a project to build drones equipped with its Tasers. A majority of its artificial intelligence ethics board quit after the plan was announced last week.
Nine of the 12 members said in a resignation letter that, just a few weeks ago, the board voted 8â4 to recommend that Axon shouldnât move forward with a pilot study for a Taser-equipped drone concept. âIn that limited conception, the Taser-equipped drone was to be used only in situations in which it might avoid a police officer using a firearm, thereby potentially saving a life,â the nine board members wrote. They noted Axon might decline to follow that recommendation and were working on a report regarding measures the company should have in place were it to move forward.
The nine individuals said they were blindsided by an announcement from the company last Thursday â nine days after 19 elementary school students and two teachers were killed in a mass shooting in Uvalde, Texas â about starting development of such a drone. It had an aim of âincapacitating an active shooter in less than 60 seconds.â Axon said it âasked the board to re-engage and consider issuing further guidance and feedback on this capability.â
Scientists have created the first âtime-crystalâ two-body system in an experiment that seems to bend the laws of physics.
It comes after the same team recently witnessed the first interaction of the new phase of matter.
Time crystals were long believed to be impossible because they are made from atoms in never-ending motion. The discovery, published in Nature Communications, shows that not only can time crystals be created, but they have potential to be turned into useful devices.
Promising. Very early yet, but promising nonetheless.
It was a small trial, just 18 rectal cancer patients, every one of whom took the same drug.
But the results were astonishing. The cancer vanished in every single patient, undetectable by physical exam; endoscopy; positron emission tomography, or PET scans; or MRI scans.
Continue reading “A Cancer Trialâs Unexpected Result: Remission in Every Patient” »
(CNN)A weekly dose of a medication recently approved by the US Food and Drug Administration to treat type 2 diabetes may help adults without diabetes lose weight as well, a new study found.
A recently approved drug for diabetes that helped users lose weight was also tested on overweight people without diabetes, with âimpressiveâ results that rival weight loss surgery, experts say.
Researchers built a 3D model and tested it on young mice who were not yet capable of producing sperm â and after 5â7 weeks, sperm cells in the process of developing were discovered in the model, marking the success of the experiment.
âThis system may also serve as an innovative platform for examining the effect of drugs and toxins on male fertilityâ Prof. Mahmoud Huleihel, BGUâs Faculty of Health Sciences
âThis study opens up a new horizon in the process of creating sperm cells in a culture,â says study co-author Prof. Mahmoud Huleihel from BGUâs Faculty of Health Sciences. âIt enables the implementation of microfluidic-based technologies in future therapeutic strategies for infertile men and in the preservation of fertility for children undergoing aggressive chemotherapy/radiotherapy treatments that may impair their fertility in puberty.â
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Frustrated with the dangers of riding a motorcycle. Jim built the Tower Trike, an 11,000-pound motorcycle from semi parts as a safer alternative.
Could drinking coffee lead to a longer lifespan?
Many people will swear to the life extending properties of coffee, be it saving them from keeling over from exhausting in the early hours of the morning or saving an annoying co-worker from the unbridled rage of someone who hasnât yet acquired their caffeine fix. Yes, coffee is without a doubt one of the most powerful (and mostly metaphorical) lifesavers of the modern world. However, recent studies into the effects of drinking coffee on human lifespan have found that it might very well have a significant impact on health and longevity. A study of 170,000 people from the UK found that those who drank between two and four cups of coffee a day were 30% less likely to die from all causes compared to those who did not drink coffee at all. Interestingly, the same study also revealed that taking a small amount of sugar with their coffee had no significant detrimental effects on the health of the coffee drinker. This is not the first study that has made such claims about the health benefits of coffee, in 2019 a team of scientists showed that on average coffee drinkers could be expected to live on average 2 years longer than those who did not consume the beverage.
So why coffee? What is it about this common beverage that is having such a significant impact on the health of those who drink it? The immediate conclusion one might be drawn to is that is has something to do with the caffeine found within the coffee, as this is commonly regarded as the most significant feature (or indeed to some, the entire point) of coffee. It certainly makes us feel more alert, increases our heart rate, and even increases our metabolism. However, this might very well not have anything to do with how coffee is actually helping to extend life. A similar study conducted by Harvard involving 500,000 British coffee drinkers (which linked coffee to a 14% lower risk of death) found that both caffeinated and decaffeinated coffee both improved an individualâs longevity, indicated that caffeine may not be what is responsible for the increased lifespan enjoyed by coffee drinkers.
