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“In this study, for the first time, we see evidence that events which were always assumed to be occurring in the same manner, regardless of sex, may actually be completely different in males compared to females. The fact that these differences involve astrocytes, which have traditionally been ignored in neuroscience but have recently become a hot topic for study, makes them all the more intriguing.”

Summary: Thrombospondin-2, a protein with cell adhesion properties usually secreted by astrocytes, prompted a strong increase in synapses in male-derived neurons but showed no effect in females.

Source: Marshall University

Continue reading “Non-Neuronal Cells Drive Sex Differences in Early Brain Development” »

All cancers fall into just two categories, according to new research from scientists at Sinai Health, in findings that could provide a new strategy for treating the most aggressive and untreatable forms of the disease.

In new research out this month in Cancer Cell, scientists at the Lunenfeld-Tanenbaum Research Institute (LTRI), part of Sinai Health, divide all cancers into two groups, based on the presence or absence of a protein called the Yes-associated protein, or YAP.

Rod Bremner, senior scientist at the LTRI, said they have determined that all cancers are present with YAP either on or off, and each classification exhibits different drug sensitivities or resistance. YAP plays an important role in the formation of malignant tumours because it is an important regulator and effector of the Hippo signaling pathway.

Summary: A newly developed questionnaire can detect autism in children between the ages of 18 to 30 months.

Source: University of Cambridge.

New research led by the University of Cambridge suggests that autism can be detected at 18–30 months using the Quantitative Checklist for Autism in Toddlers (Q-CHAT), but it is not possible to identify every child at a young age who will later be diagnosed as autistic.

Blue Origin’s New Shepard rocket sent up Jeff Bezos, his brother Mark, aviator Wally Funk, and student Oliver Daeman. Check out these photos and videos of the launch and landing.

See how these billionaire space ventures can vastly improve life on Earth.
I support Bezos’ dream of mining asteroids and building rotational space habitats (O’neill Cylinders) that are mini Earths turned inside out to spread life through the cosmos. That said, I don’t like the Amazon Death Star approach to blasting small businesses out of business to build their empire. That said I do hope Blue Origin starts making progress toward orbit and all the best to SpaceX, Virgin Galactic, Virgin Orbit, Rocket Lab, and all the other space ventures out there!

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One of the most important open questions in science is how our consciousness is established. In the 1990s, long before winning the 2020 Nobel Prize in Physics for his prediction of black holes, physicist Roger Penrose teamed up with anaesthesiologist Stuart Hameroff to propose an ambitious answer.

They claimed that the brain’s neuronal system forms an intricate network and that the consciousness this produces should obey the rules of quantum mechanics – the theory that determines how tiny particles like electrons move around. This, they argue, could explain the mysterious complexity of human consciousness.

Continue reading “Can Consciousness Be Explained by Quantum Physics?” »

Artificial intelligence, machine learning, data science.

The UK, US and EU have accused China of carrying out a major cyber-attack earlier this year on Microsoft Exchange email servers.

The attack affected at least 30000 organisations globally.

Continue reading “China accused of cyber-attack on Microsoft — BBC News” »

Chemical engineer Zhenan Bao and her team of researchers at Stanford have spent nearly two decades trying to develop skin-like integrated circuits that can be stretched, folded, bent and twisted — working all the while — and then snap back without fail, every time. Such circuits presage a day of wearable and implantable products, but one hurdle has always stood in the way.

Namely, “How does one produce a completely new technology in quantities great enough to make commercialization possible?” Bao said. Bao and team think they have a solution. In a new study, the group describes how they have printed stretchable-yet-durable integrated circuits on rubbery, skin-like materials, using the same equipment designed to make solid silicon chips — an accomplishment that could ease the transition to commercialization by switching foundries that today make rigid circuits to producing stretchable ones.

Stanford researchers show how to print dense transistor arrays on skin-like materials to create stretchable circuits that flex with the body to perform applications yet to be imagined.

Continue reading “Engineers develop practical way to make artificial skin” »