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A: Shivering (physical thermogenesis) occurs when the tension of the skeletal muscles rises beyond a critical level or when the body temperature falls below the critical level of 37.1 degrees C. Shivering is actually an involuntary contraction of muscles to maintain body temperature during fever and in cool environments. It involves oscillating skeletal-muscle contractions that…
Over the last 25 years, the ozone hole which forming over Antarctica each spring has started to shrink. But over the last four years, even as the hole has shrunk it has persisted for an unusually long time. Our new research found that instead of closing up during November it has stayed open well into December. This…
Argentine palaeontologist Sebastian Rozadilla holds a fossil of the Chakisaurus nekul, an newly-discovered herbivorous dinosaur that lived about 90 million years ago in the Patagonia region, at the Buenos Aires’ Natural Science museum, in Buenos Aires, Argentina April 24, 2024. | Photo Credit: Reuters Palaeontologists from Argentina announced the discovery of a new medium-sized herbivorous…
Read More “Argentine scientists find speedy 90-million-year-old herbivore dinosaur” »
Flowering plants – from corn, wheat, rice and potatoes to maple, oak, apple and cherry trees as well as roses, tulips, daisies and dandelions and even the corpse flower and voodoo lily – are cornerstones of Earth’s ecosystems and essential for humankind. | Photo Credit: Reuters Flowering plants – from corn, wheat, rice and potatoes…
Read More “Understanding of Earth’s flowering plants blossoms in genome study” »
An artist’s impression of a type of neutron star called a magnetar. Magnetars are the cosmic objects with the strongest magnetic fields ever measured in the universe. | Photo Credit: Reuters Magnetars are among the universe’s most extreme objects – a class of the compact stellar remnants called neutron stars that possess immensely strong magnetic…
Read More “Huge energetic flare from magnetic neutron star detected” »
SpaceX logo and Elon Musk photo are seen in this illustration taken, December 19, 2022. | Photo Credit: Reuters Injury rates at SpaceX facilities continued to exceed an industry average in 2023, according to a Reuters review of safety data reported to U.S. regulators by the space venture controlled by billionaire Elon Musk. The 2023…
Read More “Injury rates for Musk’s SpaceX exceed industry average for second year” »
The nebula NGC 6164/6165, also known as the Dragon’s Egg, a cloud of gas and dust surrounding a pair of stars called HD 148937, is seen in this undated handout image taken with the VLT Survey Telescope hosted at the European Southern Observatory’s Paranal Observatory in Cerro Paranal, Chile. | Photo Credit: Reuters Two large…
Read More “Astronomers unravel the mystery of the ‘Dragon’s Egg’ nebula” »
Parkinson’s disease is a neurodegenerative movement disorder that progresses relentlessly. It gradually impairs a person’s ability to function until they ultimately become immobile and often develop dementia. In the U.S. alone, over a million people are afflicted with Parkinson’s, and new cases and overall numbers are steadily increasing. There is currently no treatment to slow or halt Parkinson’s disease. Available…
Read More “Newfound genetic variant that causes Parkinson’s shows a way to beat it” »
Most health care-associated infections are caused by previously harmless bacteria that patients already had on their bodies before they even entered the hospital. Image for Representation. | Photo Credit: AP Health care providers and patients have traditionally thought that infections patients get while in the hospital are caused by superbugs they’re exposed to while they’re in a medical facility….
The Southern Ocean is renowned for having the cleanest air on Earth. But the precise reasons why have remained a mystery, until now. Image for Representation. | Photo Credit: AP The Southern Ocean is renowned for having the cleanest air on Earth. But the precise reasons why have remained a mystery, until now. There’s more to it…
Read More “The Southern Ocean has the earth’s cleanest air — scientists finally know why” »