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India is a country teeming with more than 1.4 billion people, and is in the throes of a demographic transformation. Its adolescent population, aged 10-19 years, accounts for a substantial portion of the national total, some 253 million. This demographic segment is a significant part of what economists and demographers have come to call the…
Read More “India needs youth mental health focus to strike demographic gold” »
Phonotaxis: First sound, then motion Source link
Sixty-six million years ago, the Cretaceous period ended. Dinosaurs disappeared, along with around 90% of all species on Earth. The patterns and causes of this extinction have been debated since palaeontology began. Was it a slow, inevitable decline, or did the end come quickly, driven by a sudden, unpredictable disaster? Georges Cuvier, working in the early 19th…
In the rich tapestry of human ancestry and history, there is one genomic thread that weaves a particularly complex narrative. It connects our lineage through the many generations across our existence on the earth, and also defines our genetic vulnerabilities. This thread is none other than consanguinity: the practice of marrying close relatives, an age-old…
Read More “Unravelling the links between consanguinity and genetic diseases” »
Find the latest news and updates from the world of science. | Photo Credit: AP From figuring out why galaxies created during the cosmic down appear to be mature and more massive to ancient human footprints in New Mexico that can be dated back to the last Ice Age, here are this week’s new discoveries…
The story so far: On October 3, the 2023 Nobel Prize for physics was awarded to Anne L’Huillier, Pierre Agostini, and Ferenc Krausz “for experimental methods that generate attosecond pulses of light for the study of electron dynamics in matter”. What is an attosecond? An attosecond is one quintillionth of a second, or 10^-18 seconds….
Read More “Attophysics — new tools to fathom the world of electrons | Explained” »
Laboratory flasks are used for explanation during the announcement of the winners of the 2023 Nobel Prize in chemistry at Royal Swedish Academy of Sciences in Stockholm on October 4, 2023. | Photo Credit: AFP The story so far: Alexei I. Ekimov, Louis E. Brus, and Moungi G. Bawendi have been awarded the 2023 Nobel…
Read More “Significance of quantum dots in nanotechnology | Explained” »
The design and successful transplantation of kidney grafts from genetically modified pigs into non-human primates has been described in a recent study published in Nature. Modifying the pig genomes to remove antigen coding genes, add human genes and eliminate pig viruses, resulted in long-term survival of the monkey recipients, up to around two years. This preclinical…
Read More “Improving the compatibility of pig organs for transplantation into humans” »
Every year, 19-23 million tonnes of plastic waste leaks into aquatic ecosystems | Photo Credit: AFP Recall what grandparents did, before the age of plastics. They would bring their own bags, normally of cotton or jute, bring home the purchase, and later, wash and dry the bags, ready for the next use. They also used…
Japanese scientist Kikunae Ikeda first proposed umami as a basic taste — in addition to sweet, sour, salty and bitter — in the early 1900s. About eight decades later, the scientific community officially agreed with him. Now, scientists have evidence of a sixth basic taste. In a study published recently (Nature Communications), researchers have found…
Read More “Can the tongue taste only sweet, salty, sour, bitter and umami?” »