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Mar 10, 2024

Thanks to AI, the coder is no longer king: All hail the QA engineer

Posted by in categories: robotics/AI, security

How will that situation change development teams? A common ratio of developers to testers is three to one. At a big bank with 40,000 software engineers, 10,000 might do security, reliability, and quality control. But the AI effect is like squeezing a balloon so it expands on the other side. The coding productivity jump is offset by a dramatic increase in cycles spent on testing.

How Development Teams Can Get Ahead

For software teams, the pressure is on to adapt. Companies that want to stay ahead of the game should first get a handle on a long-time adversary: toil.

Mar 10, 2024

Next gen Intel CPU reveal looks set to be sooner than expected

Posted by in category: computing

Computex trade show lines up Intel CEO Pat Gelsinger to deliver keynote, and he’s expected to showcase Intel’s new Arrow Lake Core CPUs.

Mar 10, 2024

Stunning visionOS 2 concept shows off 7 features I want Apple to add to the Vision Pro

Posted by in category: computing

I hope visionOS 2 brings at least these seven Apple Vision Pro possible features to help Apple improve its first spatial computer.

Mar 10, 2024

Yuri Gagarin: Facts about the first human in space

Posted by in category: space

Yuri Gagarin was the first human in space when he orbited Earth in 1961 aboard the Vostok 1 space capsule.

Mar 10, 2024

Private Varda Space capsule returns to Earth grown antiviral drug aboard

Posted by in category: biotech/medical

Varda Space Industries’ W-1 capsule landed in Utah Wednesday (Feb. 21) after nearly eight months in orbit.

Mar 10, 2024

How to Compare Proteins

Posted by in category: biological

The motions within the molecule provide a new way to compare the structures and functions of similar proteins.

Proteins play a central role in nearly every biological process, and they often change shape as they function. Over the past decade, a research team has developed a method of analysis that can help make sense of the available atomic-scale structural data and reveal the key physical distortions that underlie protein functions. Now the team has shown that the technique provides a consistent way of comparing proteins from different species, demonstrating similar structural changes in many of them [1]. The researchers believe that the technique will help biologists better understand the cross-species variations among proteins.

Proteins are linear chains of amino acids that fold up into specific three-dimensional shapes. Although there are lots of atomic-scale data on the structural changes that protein molecules execute as they function, researchers have had few quantitative methods to extract insights from these data, says biophysicist Pablo Sartori of the Gulbenkian Institute of Science in Portugal. One challenge, he says, is the arbitrary choice one makes when comparing two similar protein structures, such as the structures of a protein in two different conformations. “If you align region A of the protein, then region B shows displacement. If you align region B, then region A shows displacement. If you align the average, then both are displaced a bit.” Another problem is that the relative displacement is often not the quantity that best reflects the structural changes associated with protein function.

Mar 10, 2024

Prizes for Videos Featuring Mickey Mouse and Laptop Cables

Posted by in category: robotics/AI

The winners of the third annual “Gallery of Soft Matter” competition included posters portraying robotic leaves and cannibalizing droplets and a video with what might be Steamboat Willie’s first appearance at the APS March Meeting.

Mar 10, 2024

Primordial Magnetism: The Hidden Force Behind Life’s Origin

Posted by in categories: biological, chemistry

The perplexing phenomenon of homochirality in life, where biomolecules exist in only one of two mirror-image forms, remains unexplained despite historical attention from scientific figures like Pasteur, Lord Kelvin, and Pierre Curie. Recent research suggests the combination of electric and magnetic fields might influence this preference through experiments showing enantioselective effects on chiral molecules interacting with magnetized surfaces, offering indirect evidence towards understanding this mystery.

The phenomenon known as homochirality of life, which refers to the exclusive presence of biomolecules in one of their two possible mirror-image configurations within living organisms, has intrigued several prominent figures in science. This includes Louis Pasteur, who first identified molecular chirality, William Thomson (also known as Lord Kelvin), and Pierre Curie, a Nobel Laureate.

A conclusive explanation is still lacking, as both forms have, for instance, the same chemical stability and do not differ from each other in their physicochemical properties. The hypothesis, however, that the interplay between electric and magnetic fields could explain the preference for one or the other mirror-image form of a molecule – so-called enantiomers – emerged early on.

Mar 10, 2024

Ingenious New Method Measures the 3D Position of Individual Atoms

Posted by in category: particle physics

For over ten years, physicists have been able to pinpoint the exact positions of individual atoms with a precision finer than one-thousandth of a millimeter using a specialized microscope. However, this method has so far only provided the x and y coordinates. Information on the vertical position of the atom – i.e., the distance between the atom and the microscope objective – is lacking.

A new method has now been developed that can determine all three spatial coordinates of an atom with one single image. This method – developed by the University of Bonn and University of Bristol – is based on an ingenious physical principle. The study was recently published in the specialist journal Physical Review A.

Mar 10, 2024

Unlocking the Cosmic Recipe for Planet Formation

Posted by in categories: alien life, innovation

Researchers have discovered significant amounts of water vapor in the disc around the young star HL Tauri, suggesting the presence of water where planets are forming. This breakthrough, enabled by the ALMA telescope in Chile, marks the first time astronomers have been able to quantify water vapor in a cool, stable disc conducive to planet formation. The findings could have profound implications for our understanding of how planets, particularly those capable of hosting life, are formed. (Artist’s concept.) Credit: SciTechDaily.com.

Researchers have found water vapor in the disc around a young star exactly where planets may be forming.

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