PBS纪录片《我们的DNA秘密Secrets in Our DNA 2021》 Some 30 million people have sent their DNA to be analyzed by companies like 23andMe and AncestryDNA, hoping to obtain clues to family origins and forecasts of their future health. Some users have found family members and discovered lurking gene...
Found and taken from the north Atlantic 6 days after the sinking of the Titanic in 1912 his tiny body so moved the rescue workers that they called him “our baby.” In their home port of Halifax Nova Scotia people collected money for a headstone in front of the baby's grave carved ...
In the complex field of forensic science, a new discipline has emerged that intertwines botany and criminal investigation—forensic phytochemistry [1]. This growing field leverages plant-based evidence to illuminate mysteries that often evade traditional investigative techniques [2]. As we delve into ...
who manages the Electron Beam Analysis Labs at the NASA Johnson Space Center, discovered grains thought to have originated in red giant stars—stars that are older than the sun. Also found were traces of supernova ejecta, the chemicals blasted outward in the fa...
Dopaminergic neurons also fire whenever we feel rewarded, thus forming the basis of the “reward pathway” in our brains. But what happens when dopaminergic signaling is perturbed, such as in addiction? To investigate this question, the researchers made use of a well-known dopamine reuptake inh...
"Furthermore, there are potential spin-offs in relating our understanding of these mechanisms of DNA repair pathways to similar repair pathways involved in conditions as in cancer," Tirumalai said. NASA's Mars 2020 rover will collect surface samples for a possible return to Earth.(Image credit:...
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When you purchase through links on our site, we may earn an affiliate commission.Here’s how it works. In the abraded heart of South Africa's Vredefort impact crater lurk striking green-black rocks, some of the only remnants of a magma sea that once filled the gaping crater.(Image credi...
meaning they will have a very short lifetime. Their presence suggests an average cluster age of nearly four million years. At the moment these stars are on the verge of exploding as supernovae. During their spectacular deaths they will release vast amounts of energy which, in turn, will he...