Category: Science

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Chemicals in plastics far more numerous than previous estimates, report says

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Compressed metal cans are seen at Indaver Plastics Recycling (IPR) plant in Willebroek, Belgium March 14, 2024. | Photo Credit: Reuters At least 3,000 more chemicals are in plastics — from food packaging to toys to medical devices — than previously estimated by environmental agencies, a report published on Thursday found, raising questions over pollution…

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Why did menopause evolve? New study of whales gives some clues

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Three killer whales surface through a breathing hole in the ice of Hudson Bay near the community of Inukjuak, Quebec January 9, 2013. | Photo Credit: Reuters Menopause is a rare trait among Earth’s species, known to exist in only a few. Humans are one. Killer whales and four other toothed whales are the others….

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Study documents headaches experienced by astronauts in space

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An astronaut is shown in this handout photo provided by NASA participating in a spacewalk that took place on December 24, 2013, released on December 27, 2013. | Photo Credit: Reuters Research in the expanding field of space medicine has identified many ways in which a microgravity environment and other factors can meddle with the…

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SpaceX Starship disintegrates after completing most of third test flight

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SpaceX’s next-generation Starship spacecraft atop its powerful Super Heavy rocket lifts off on its third launch from the company’s Boca Chica launchpad on an uncrewed test flight, near Brownsville, Texas, U.S. March 14, 2024. | Photo Credit: Reuters SpaceX’s Starship rocket, designed to eventually send astronauts to the moon and beyond, completed nearly an entire…

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What is the HbA1C test and why is it used to check for diabetes? | Explained

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India is estimated to have 10.13 crore people with diabetes, and another 13.6 crore people who are pre-diabetic, according to a nationwide study published in 2023. This apart, over 35% of Indians suffer from hypertension and nearly 40% from abdominal obesity, both of which are risk factors for diabetes. India accounts for 17% of all…

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JNCASR researchers develop photocatalyst to convert carbon dioxide to ethylene

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Jawaharlal Nehru Centre for Advanced Scientific Research, Bengaluru. | Photo Credit: file photo Researchers from Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) have synthesized a novel and highly efficient photocatalyst that can convert carbon dioxide (CO2) to the high-value products ethene and ethylene, which are used as fuel gases. According to the Department of…

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Bird flu strain raises alarm as virus kills South American wildlife

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The deadly H5N1 bird flu virus has spread more aggressively than ever before in wild birds and marine mammals since arriving in South America in 2022, raising the risk of it evolving into a bigger threat to humans, according to interviews with eight scientists. Of more immediate concern is evidence the disease, once largely confined…

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AlphaGeometry and the threat of AI’s takeover of mathematics | Explained

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A few weeks ago, an animated discussion unfolded in a WhatsApp group whose members are mathematicians interested in the Indian Mathematical Olympiad. The spark was a Nature paper that announced a Google DeepMind artificial intelligence (AI) named AlphaGeometry had achieved a milestone: it could solve geometry problems at the level of the International Mathematical Olympiad,…

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