World Food Day, celebrated every year on 16 October, marks the founding of the Food and Agriculture Organization (FAO) of the United Nations in 1945 as an organization that deals with global food and agricultural issues. The number of people going hungry has increased since 2014 and the prevalence of undernourishment has remained virtually unchanged in the past 3 years. This reversal in progress sends a clear warning that more must be done urgently if the Sustainable Development Goal of Zero Hunger is to be achieved by 2030.
Playing through the greenery and litter of a mini forest’s undergrowth for just one month may be enough to change a child’s immune system, according to an experiment in Finland.
When daycare workers rolled out a lawn, planted forest undergrowth (such as dwarf heather and blueberries), and allowed children to care for crops in planter boxes, the diversity of microbes in the guts and on the skin of the young kids appeared healthier in a very short space of time.
Compared to other city kids who play in standard urban daycares with yards of pavement, tile, and gravel, 3-, 4-, and 5-year-olds at these greened-up daycare centers in Finland showed increased T-cells and other important immune markers in their blood within 28 days.
They’re so much like humans. Hopefully this doesn’t hurt them in the long term.
Farms in India have reached out to the authorities after repeatedly being attacked by opium-addicted parrots.
Farmers in Madhya Pradesh say their opium crops are being ruined by parrots who keep returning to raid their farms in an attempt to get high. The farmers have been guarding the fields day and night to protect their poppies, but the birds are willing to risk it all to get their beaks on the opium, which is being farmed for medical purposes.
Playing loudspeakers has also failed to rid the farms of the birds, whose opium problem is too far developed to let a bit of noise deter them.
Remember back in the mid-80s, when mass-produced holograms were such a big deal? Since then, they’ve become common on credit cards, currency and other items. Now, thanks to new research, you can actually eat the things.
First of all, why would anyone want an edible hologram? Well, along with simply being used for decorative purposes, they could conceivably also serve to show that a food item hasn’t been tampered with, or to display its name and/or ingredients in a way that proves it isn’t a counterfeit product.
Scientists have already successfully molded edible holograms into chocolate, although only certain types of chocolate worked, and a new mold had to be created for each hologram design. Seeking a more versatile alternative, researchers at the United Arab Emirates’ Khalifa University of Science started out by mixing corn syrup and vanilla with water, then letting the solution dry into a film.
Terahertz (THz) radiation is electromagnetic radiation ranging from frequencies of 0.1 THz to 10 THz, with wavelengths between 30μm and 3mm. Reliably detecting this radiation could have numerous valuable applications in security, product inspection, and quality control.
For instance, THz detectors could allow law enforcement agents to uncover potential weapons on humans or in luggage more reliably. It could also be used to monitor natural environments without damaging them or to assess the quality of food, cosmetics and other products.
Recent studies introduced several devices and solutions for detecting terahertz radiation. While a few of them achieved promising results, their performance in terms of sensitivity, speed, bandwidth and operating temperature is often limited. Researchers at Massachusetts Institute of Technology (MIT), University of Minnesota, and other institutes in the United States and South Korea recently developed a new camera that can reliably detect THz radiation at room temperature, while also characterizing its so-called polarization states. This camera, introduced in a paper published in Nature Nanotechnology, is based on widely available complementary metal-oxide-semiconductors (CMOS), enhanced using quantum dots (i.e., nm-sized semiconductor particles with advantageous optoelectronic properties).
Google today announced two new performance settings in its Chrome browser: Memory Saver and Energy Saver.
Modern browsers eat up a lot of memory and while that’s not a problem if you have 32GB of RAM, Chrome using multiple gigabytes of your memory can quickly slow your machine down if you’re on a machine with lower specs. The Memory Saver mode promises to reduce Chrome’s memory usage by up to 30% by putting inactive tabs to sleep. The tabs will simply reload when you need them again. The Energy Saver mode, meanwhile, limits background activity and visual effects for sites with animations and videos when your laptop’s battery level drops below 20%.
‘I almost died on the way out,’ said the six-foot-two tall archeologist who lost 25 kgs to enter a 17.5-centimeter cave.
Researchers claim to have discovered new evidence of extinct human species who lived in the underground caves of modern-day South Africa.
“We have massive evidence. It’s everywhere,” said Berger, who reported the findings in a press release and a Carnegie Science lecture at the Martin Luther King Jr.
Gulshan Khan/Getty Images.
The archeological findings reveal that Homo naledi, a prehistoric human species used fires to prepare food and navigate in the darkness of underground caves, according to South African paleoanthropologist and National Geographic explorer Lee Berger.
For millennia, humans have been harnessing #microbes to produce everything from breads, to cheeses, to alcohol. Now these tiny organisms have produced another powerful revolution — the gene editing tool CRISPR. Rodolphe Barrangou, Ph.D., was working at the food company Danisco, where he was trying to produce yogurt lines resistant to contamination. In a series of groundbreaking experiments, he helped uncover what CRISPR was, how it worked, and why it could be so transformative.
Speaker Biography: Rodolphe Barrangou, Ph.D., studies beneficial microbes, focusing on the occurrence and diversity of lactic acid bacteria in fermented foods and as probiotics. Using functional genomics, he has focused on uncovering the genetic basis for health-promoting traits, including the ability to uptake and catabolize non-digestible carbohydrates. He spent 9 years at Danisco-DuPont, characterizing probiotics and starter cultures, and established the functional role of CRISPR-Cas as adaptive immune systems in bacteria. At NC State, he continues to study the molecular basis for their mechanism of action, as well as developing and applying CRISPR-based technologies for genotyping, building immunity and genome editing.
Producers: Sarah Goodwin, Rebecca Ellsworth. Cinematographer: Derek Reich. Editor: Rebecca Ellsworth\ Graphics: Chris George, Maggie Hubbard. Assistant Camera: Gray McClamrock. Drone aerials: Travis Jack. Supervising Editor: Regina Sobel. Field Producer: Meredith DeSalazar. Interview by: Adam Bolt. Associate Producer: Shelley Elizabeth Carter. Executive Producers: Shannon Behrman, Sarah Goodwin, Elliot Kirschner.
