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2023

Новости за 06.04.2023

Technology advance paves way to more realistic 3D holograms for virtual reality and more

Sciencedaily.com 

Researchers have developed a new way to create dynamic ultrahigh-density 3D holographic projections. They now describe their new approach, called three-dimensional scattering-assisted dynamic holography (3D-SDH). They show that it can achieve a depth resolution more than three orders of magnitude greater than state-of-the-art methods for multiplane holographic projection.

Researchers create embryo-like structures from monkey embryonic stem cells

Sciencedaily.com 

Human embryo development and early organ formation remain largely unexplored due to ethical issues surrounding the use of embryos for research as well as limited availability of materials to study. Investigators now report on the creation of embryo-like structures from monkey embryonic stem cells. The investigators also transferred these embryo-like structures into the uteruses of female monkeys and determined that the structures were able to implant and elicit a hormonal response similar to pregnancy.

Activating adult-born neurons through deep brain stimulation alleviates Alzheimer's symptoms in rodent models

Sciencedaily.com 

People with Alzheimer's disease develop defects in cognitive functions like memory as well as problems with noncognitive functions that can lead to anxiety and depression. Investigators used mice to study a process through which new neurons are generated in adulthood, called adult hippocampus neurogenesis (AHN). The research showed that deep brain stimulation of new neurons helped restore both cognitive and noncognitive functions in mouse models of Alzheimer's disease.

Super-sized nanocage could deliver bigger drug cargoes

Sciencedaily.com 

Nanocages are tiny artificial containers that can be used to deliver therapeutics to a target destination in the body. But some drug molecules are like gifts that are too big for a standard-sized nanocage 'box'. Now researchers describe how they have built a super-sized nanocage that could be used to deliver larger drug cargoes. They have built a bigger box.

Shedding light on mechanisms of electrochemical energy storage

Sciencedaily.com 

Researchers have developed a new technique that can quickly identify the exact electrochemical mechanisms taking place in batteries and supercapacitors of various compositions -- a breakthrough that could speed the design of higher performing energy storage devices.



Man arrested in Australia, charged with kidnapping platypus

TheHill.com 

Australian police have charged a 26-year-old man after he allegedly stole a platypus from a local waterway and showed it off to people on a train and in a shopping center. Queensland police made a public appeal for the identity of a man and woman who were seen on video Tuesday holding the animal that...

Twinkling stars fuel interstellar dust

Sciencedaily.com 

Of the many different kinds of stars, asymptotic giant branch (AGB) stars, usually slightly larger and older than our own sun, are known producers of interstellar dust. Dusty AGBs are particularly prominent producers of dust, and the light they shine happens to vary widely. For the first time, a long-period survey has found the variable intensity of dusty AGBs coincides with variations in the amount of dust these stars produce. As this dust can lead to the creation of planets, its study can shed light on our own origins.

How to overcome noise in quantum computations

Sciencedaily.com 

Scientists have made significant progress in quantum computing by deriving a formula that predicts the effects of environmental noise. This is crucial for designing and building quantum computers capable of working in our imperfect world.

Sick of seeing Doge on Twitter? Here's how to make it disappear

Boing Boing 

If you've grown tired of seeing the tiny Shiba Inu in the upper left corner of Twitter, here's how to get rid of it (at least on Chrome). Right-click on the image and select "Inspect" from the menu. Then right-click on the highlighted HTML code and select "Hide element." — Read the rest

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Analyzing the Consequences of Recent Youth Online Safety Proposals

Cato Institute 

Jennifer Huddleston

Many policymakers at both the state and federal levels have called for additional regulations to protect children’s online privacy and improve online safety. While the desire to protect children is a well‐​intentioned motivation, these proposals have significant consequences, and in many cases may even diminish children’s online privacy. In a new policy brief out today, I discuss the potential impact of these proposals for all internet users, not just children.

In general... Читать дальше...


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