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| Scientists detect signatures of life remotely Posted: 18 Jun 2021 10:39 AM PDT It could be a milestone on the path to detecting life on other planets: Scientists detect a key molecular property of all living organisms from a helicopter flying several kilometers above ground. The measurement technology could also open up opportunities for remote sensing of the Earth. |
| Most cancer cells grown in a dish have little in common with cancer cells in people, research finds Posted: 18 Jun 2021 06:17 AM PDT In a bid to find or refine laboratory research models for cancer that better compare with what happens in living people, scientists report they have developed a new computer-based technique showing that human cancer cells grown in culture dishes are the least genetically similar to their human sources. |
| Unraveling the origin of Alzheimer's disease Posted: 17 Jun 2021 11:36 AM PDT Researchers studying prions -- misfolded proteins that cause lethal incurable diseases -- have identified the surface features of human prions responsible for their replication in the brain. |
| Physicists bring human-scale object to near standstill, reaching a quantum state Posted: 17 Jun 2021 11:36 AM PDT In the last few decades, physicists have found ways to super-cool objects so that their atoms are at a near standstill, wrestling small objects such as clouds of millions of atoms, or nanogram-scale objects, into such pure quantum states. Now scientists have cooled a large, human-scale object to close to its motional ground state. The object isn't tangible in the sense of being situated at one location, but is the combined motion of four separate objects. The 'object' that the researchers cooled has an estimated mass of about 10 kilograms, and comprises nearly 1 octillion atoms. |
| New method could reveal what genes we might have inherited from Neanderthals Posted: 17 Jun 2021 08:55 AM PDT Using neural networks, researchers have developed a new method to search the human genome for beneficial mutations from Neanderthals and other archaic humans. These humans are known to have interbred with modern humans, but the overall fate of the genetic material inherited from them is still largely unknown. Among others, the researchers found previously unreported mutations involved in core pathways in metabolism, blood-related diseases and immunity. |
| We cannot cheat aging and death, study indicates Posted: 16 Jun 2021 06:41 AM PDT Philosophers, artists and scientists -- and probably all the rest of us -- have long obsessed over the key to human immortality. We all, no matter our income, culture or religion are bound to die. Even if we escape mortal diseases or accidents, we all face a deadly biological deterioration. While the debate of human longevity has divided the scientific community for centuries, a new study finds fresh evidence for our inevitable death. |
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