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Archive for the ‘computing’ category: Page 329

Nov 17, 2021

Cellular Computing: “Logic Gate” Paves Way for Nanoscale Computers To Treat Cancer and Other Diseases

Posted by in categories: biotech/medical, computing, health, nanotechnology

The creation of nanoscale computers for use in precision health care has long been a dream of many scientists and health care providers. Now, for the first time, researchers at Penn State have produced a nanocomputing agent that can control the function of a particular protein that is involved in cell movement and cancer metastasis. The research paves the way for the construction of complex nanoscale computers for the prevention and treatment of cancer and other diseases.

Nikolay Dokholyan, G. Thomas Passananti Professor, Penn State College of Medicine, and his colleagues — including Yashavantha Vishweshwaraiah, postdoctoral scholar in pharmacology, Penn State — created a transistor-like ‘logic gate,’ which is a type of computational operation in which multiple inputs control an output.

“Our logic gate is just the beginning of what you could call cellular computing,” he said, “but it is a major milestone because it demonstrates the ability to embed conditional operations in a protein and control its function, said Dokholyan. ” It will allow us to gain a deeper understanding of human biology and disease and introduces possibilities for the development of precision therapeutics.”

Nov 17, 2021

What Apple’s New Repair Program Means for You (and Your iPhone)

Posted by in categories: computing, mobile phones

Apple delivered an early holiday gift to the eco-conscious and the do-it-yourselfers: It said it would soon begin selling the parts, tools and instructions for people to do their own iPhone repairs. It was a major victory for the “right to repair” movement.


Apple said it would soon provide parts, tools and manuals to those who wanted to fix their own iPhones and Mac computers.

Nov 17, 2021

‘New world order’: Asia’s virtual influencers offer metaverse glimpse

Posted by in category: computing

Sporting neon hair and flawless skin, Bangkok Naughty Boo is one of a new generation of influencers in Asia promising to stay forever young, on-trend, and scandal-free — because they are computer generated.

Blurring the lines between fantasy and reality, these stars are hugely popular with teenagers in the region and will yield increasing power as interest grows in the “metaverse”, industry experts say.

“I’m 17 forever, non-binary, with a dream of becoming a pop star,” Bangkok Naughty Boo — who uses they/them pronouns — said in an introductory video sent to AFP.

Nov 17, 2021

A computer algorithm that speeds up experiments on plasma

Posted by in categories: biotech/medical, computing, information science, nuclear energy

A team of researchers from Tri Alpha Energy Inc. and Google has developed an algorithm that can be used to speed up experiments conducted with plasma. In their paper published in the journal Scientific Reports, the group describes how they plan to use the algorithm in nuclear fusion research.

As research into harnessing has progressed, scientists have found that some of its characteristics are too complex to be solved in a reasonable amount of time using current technology. So they have increasingly turned to computers to help. More specifically, they want to adjust certain parameters in a device created to achieve fusion in a reasonable way. Such a device, most in the field agree, must involve the creation of a certain type of that is not too hot or too cold, is stable, and has a certain desired density.

Finding the right parameters that meet these conditions has involved an incredible amount of trial and error. In this new effort, the researchers sought to reduce the workload by using a to reduce some of the needed trials. To that end, they have created what they call the “optometrist’s .” In its most basic sense, it works like an optometrist attempting to measure the visual ability of a patient by showing them images and asking if they are better or worse than other images. The idea is to use the crunching power of a computer with the intelligence of a human being—the computer generates the options and the human tells it whether a given option is better or worse.

Nov 17, 2021

New material could be two superconductors in one

Posted by in categories: computing, quantum physics

MIT physicists and colleagues have demonstrated an exotic form of superconductivity in a new material the team synthesized only about a year ago. Although predicted in the 1960s, until now this type of superconductivity has proven difficult to stabilize. Further, the scientists found that the same material can potentially be manipulated to exhibit yet another, equally exotic form of superconductivity.

The work was reported in the Nov. 3 issue of the journal Nature.

The demonstration of finite momentum superconductivity in a layered crystal known a natural superlattice means that the material can be tweaked to create different patterns of superconductivity within the same sample. And that, in turn, could have implications for and more.

Nov 17, 2021

Gigantic Universe Simulation Spanning Billions of Light-Years Is The Largest Ever

Posted by in categories: computing, cosmology, physics

Today, the greatest mysteries facing astronomers and cosmologists are the roles gravitational attraction and cosmic expansion play in the evolution of the Universe.

To resolve these mysteries, astronomers and cosmologists are taking a two-pronged approach. These consist of directly observing the cosmos to observe these forces at work while attempting to find theoretical resolutions for observed behaviors – such as dark matter and dark energy.

In between these two approaches, scientists model cosmic evolution with computer simulations to see if observations align with theoretical predictions. The latest of which is AbacusSummit, a simulation suite created by the Flatiron Institute’s Center for Computational Astrophysics (CCA) and the Harvard-Smithsonian Center for Astrophysics (CfA).

Nov 17, 2021

Western Digital unveils 20TB hard drives

Posted by in category: computing

Squeezing more data density into the 3.5-inch hard drive form factor.

Nov 17, 2021

IBM unveils its new 127-qubit Eagle quantum processor

Posted by in categories: computing, quantum physics

It is a major step towards commercial quantum computers outperforming traditional machines.

Nov 17, 2021

New Blacksmith Exploit Bypasses Current Rowhammer Attack Defenses

Posted by in category: computing

Researchers demonstrated new variation of Rowhammer attack affecting all DRAM chips that bypasses currently deployed mitigations.

Nov 16, 2021

Element Synthesis in the Universe: Where Does Gold Come From?

Posted by in categories: chemistry, computing, cosmology, particle physics

How are chemical elements produced in our Universe? Where do heavy elements like gold and uranium come from? Using computer simulations, a research team from the GSI Helmholtzzentrum für Schwerionenforschung in Darmstadt, together with colleagues from Belgium and Japan, shows that the synthesis of heavy elements is typical for certain black holes with orbiting matter accumulations, so-called accretion disks. The predicted abundance of the formed elements provides insight into which heavy elements need to be studied in future laboratories — such as the Facility for Antiproton and Ion Research (FAIR), which is currently under construction — to unravel the origin of heavy elements. The results are published in the journal Monthly Notices of the Royal Astronomical Society.

All heavy elements on Earth today were formed under extreme conditions in astrophysical environments: inside stars, in stellar explosions, and during the collision of neutron stars. Researchers are intrigued with the question in which of these astrophysical events the appropriate conditions for the formation of the heaviest elements, such as gold or uranium, exist. The spectacular first observation of gravitational waves and electromagnetic radiation originating from a neutron star merger in 2017 suggested that many heavy elements can be produced and released in these cosmic collisions. However, the question remains open as to when and why the material is ejected and whether there may be other scenarios in which heavy elements can be produced.

Promising candidates for heavy element production are black holes orbited by an accretion disk of dense and hot matter. Such a system is formed both after the merger of two massive neutron stars and during a so-called collapsar, the collapse and subsequent explosion of a rotating star. The internal composition of such accretion disks has so far not been well understood, particularly with respect to the conditions under which an excess of neutrons forms. A high number of neutrons is a basic requirement for the synthesis of heavy elements, as it enables the rapid neutron-capture process or r-process. Nearly massless neutrinos play a key role in this process, as they enable conversion between protons and neutrons.