In “The Code Detectives,” two middle school girls who love coding use artificial intelligence to solve mysteries. For 17-year-old author Ria Dosha, writing the book series is a way to advocate for increasing diversity within the technology field.
“I’ve brought a diverse cast of characters to life, with the series centering around Ramona Diaz, a powerful young girl of color,” says Ria, a student at Cupertino’s Monta Vista High School. “The book series gives young girls strong, fictional role models in technology and AI, and introduces them to AI topics in a compelling way, clearing common misconceptions.”
Ria writes what shoe knows, and vice versa. She is the founder of CodeBuddies, which uses workshops, panels, challenges and more to promote problem-solving through technology. She is also the founder of Monta Vista’s Women in AI club, where she teaches girls the impact of artificial intelligence in daily life.
Closed-canopy rainforests are a vital part of the Earth’s modern ecosystems, but tropical plants don’t preserve well in the fossil record so it is difficult to tell how long these habitats have existed and where rainforests might have once grown. Instead, scientists look to the diets of extinct animals, which lock evidence of the vegetation they ate into their teeth. A new study led by scientists at the American Museum of Natural History finds that the paradigm used to identify closed-canopy rainforests through dietary signatures needs to be reassessed. The findings are published this week in the journal Proceedings of the National Academy of Sciences.
“The Amazon is the world’s most diverse rainforest, home to one in 10 known species on Earth,” said Julia Tejada-Lara, who led the study as a graduate student at the Museum and Columbia University. “Closed-canopy rainforests have been proposed to occur in this area
North and South America haven’t always been connected. South America functioned as a continent-sized island for millions of years following the extinction of the dinosaurs, incubating its own strange assembly of animals such as giant ground sloths, massive armored mammals akin to armadillos and saber-toothed marsupial carnivores. Meanwhile, North America was exchanging animals with Asia, populating it with the ancestors of modern horses, camels and cats, writes Asher Elbein for the New York Times.
Finally, when tectonic activity formed the Isthmus of Panama roughly ten million years ago, a massive biological exchange took place. The many species that had been evolving in isolation from one another on both continents began migrating across the narrow new land bridge. Llamas, raccoons, wolves and bears trekked south, while armadillos, possums and porcupines went north.
It would be reasonable to expect this grand biological and geological event, known to paleontologists as the Great
University of Arkansas researchers have established a link between climate patterns in the Amazon and large parts of North and South America using their newly developed tree-ring chronology from the Amazon River basin.
The discovery helps researchers better understand large-scale climate extremes and the impact of the El Niño phenomenon.
Tree growth is a well-established climate proxy. By comparing growth rings in Cedrela odorata trees found in the Rio Paru watershed of the eastern Amazon River with hundreds of similar chronologies in North and South America, scientists have shown an inverse relationship in tree growth, and therefore precipitation patterns, between the areas. Drought in the Amazon is correlated with wetness in the southwestern United States, Mexico and Patagonia, and vice versa.
The process is driven by the El Niño phenomenon, which influences surface-level winds along the equator, researchers said. El Niño is the name given to
Millions of years before humans set foot in the Americas, a rush of alien animals began arriving in South America.
As the Isthmus of Panama came up from the waves, bridging the North and South American continents, llamas, raccoons, wolves, bears and many other species headed south. At the same time, the ancestors of armadillos, possums and porcupines headed north.
Paleontologists call the event the Great American Interchange. But they’ve long been puzzled by one aspect of it: Why did the majority of mammal immigrants go south, rather than the other way around? What happened to the southern mammals?
After a detailed analysis of fossil data from both continents, a group of researchers think they have an answer: a nasty extinction event struck South American mammals during the interchange, leaving fewer of them available to head north. Their research was published Monday in the Proceedings of the National Academy of
The presence of diamonds in an outcrop atop an unrealized gold deposit in Canada’s Far North mirrors the association found above the world’s richest gold mine, according to University of Alberta research that fills in blanks about the thermal conditions of Earth’s crust three billion years ago.
“The diamonds we have found so far are small and not economic, but they occur in ancient sediments that are an exact analog of the world’s biggest gold deposit — the Witwatersrand Goldfields of South Africa, which has produced more than 40 per cent of the gold ever mined on Earth,” said Graham Pearson, researcher in the Faculty of Science and Canada Excellence Research Chair Laureate in Arctic Resources.
“Diamonds and gold are very strange bedfellows. They hardly ever appear in the same rock, so this new find may help to sweeten the attractiveness of the original gold discovery if we can find
There was an exchange of animals from North and South America during the GABI
Why there were more animals of North American origin in South America than vice versa has been a mystery
A team of researchers may have found an explanation for the disparity
It’s possible that many South American mammals actually went extinct
Why are there more South American animals of North American origins than North American animals of South American origin? A team of researchers found a possible explanation for the long-held puzzle.
The American continents weren’t always connected but tens of millions of years ago when the land bridge of Panama formed and connected North and South America, there was an exchange of animals between the once separated lands. Called the Great American Biotic Exchange (GABI), it is considered as one of the greatest biogeographical events.
However, one thing that has been puzzling paleontologists
VIENNA (Reuters) – India and South Africa want the World Trade Organization (WTO) to waive intellectual property rules to make it easier for developing countries to produce or import COVID-19 drugs, a letter https://docs.wto.org/dol2fe/Pages/SS/directdoc.aspx?filename=q:/IP/C/W669.pdf&Open=True to the WTO shows.
In their letter dated Oct. 2 the two countries called on the global trade body to waive parts of the Agreement on Trade-Related Aspects of Intellectual Property Rights (TRIPS), which governs patents, trademarks, copyright and other intellectual property rules globally.
“As new diagnostics, therapeutics and vaccines for COVID-19 are developed, there are significant concerns (over) how these will be made available promptly, in sufficient quantities and at (an) affordable price to meet global demand,” the letter posted on the Geneva-based WTO’s website says.
The two countries said that developing nations are disproportionately affected by the pandemic and that intellectual property rights, including patents, could be a barrier to the provision of affordable
South Africa and India have asked the World Trade Organization to waive some provisions in the international agreements that regulate intellectual property rights to speed up efforts to prevent, treat and contain the COVID-19 pandemic
ANIRUDDHA GHOSAL and CARA ANNA Associated Press
October 3, 2020, 10:42 AM
• 4 min read
NEW DELHI — South Africa and India have asked the World Trade Organization to waive some provisions in the international agreements that regulate intellectual property rights, to speed up efforts to prevent, treat and contain the COVID-19 pandemic and make sure developing countries are not left behind.
The countries argue, in a joint submission to the Council for Trade-Related Aspects of Intellectual Property Rights dated Friday, that without a rapid waiver of some existing safeguards for intellectual property rights, some countries — particularly developing ones that have been “disproportionately