Algebraic expressions for averaging linear and nonlinear stiffness tensors from general anisotropy to different effective symmetries (11 Laue classes elastically representing all 32 crystal classes, and two non-crystalline symmetries: isotropic and cylindrical) have been derived by automatic symbolic computations of the arithmetic mean over the set of rotational transforms determining a given symmetry. This approach generalizes the Voigt average to nonlinear constants and desired approximate symmetries other than isotropic, which can be useful for a description of textured polycrystals and rocks preserving some symmetry aspects. Low-symmetry averages have been used to derive averages of higher symmetry to speed up computations. Relationships between the elastic constants of each symmetry have been deduced from their corresponding averages by resolving the rank-deficient system of linear equations. Isotropy has also been considered in terms of generalized Lamé constants. The results are published in the form of appendices in the supporting information for this article and have been deposited in the Mendeley database.

X-ray mirrors for synchrotron radiation are often bent into a curved figure and work under grazing-incidence conditions due to the strong penetrating nature of X-rays to most materials. Mirrors of different cross sections have been recommended to reduce the mirror's slope inaccuracy and clamping difficulty in order to overcome mechanical tolerances. With the development of hard X-ray focusing, it is difficult to meet the needs of focusing mirrors with small slope error with the existing mirror processing technology. Deformable mirrors are adaptive optics that can produce a flexible surface figure. A method of using a deformable mirror as a phase compensator is described to enhance the focusing performance of an X-ray mirror. This paper presents an active piezoelectric plane X-ray focusing mirror with a linearly changing thickness that has the ability of phase compensation while focusing X-rays. Benefiting from its special structural design, the mirror can realize flexible focusing at different focusing geometries using a single input driving voltage. A prototype was used to measure its performance under one-dimension and two-dimension conditions. The results prove that, even at a bending magnet beamline, the mirror can easily achieve a single-micrometre focusing without a complicated bending mechanism or high-precision surface processing. It is hoped that this kind of deformable mirror will have a wide and flexible application in the synchrotron radiation field.

A multi-objective genetic algorithm (MOGA) is a powerful global optimization tool, but its results are considerably affected by the crossover parameter ηc. Finding an appropriate ηc demands too much computing time because MOGA needs be run several times in order to find a good ηc. In this paper, a self-adaptive crossover parameter is introduced in a strategy to adopt a new ηc for every generation while running MOGA. This new scheme has also been adopted for a multi-generation Gaussian process optimization (MGGPO) when producing trial solutions. Compared with the existing MGGPO and MOGA, the MGGPO and MOGA with the new strategy show better performance in nonlinear optimization for the design of low-emittance storage rings.

Ultra-high-speed synchrotron-based hard X-ray (i.e. above 10 keV) imaging is gaining a growing interest in a number of scientific domains for tracking non-repeatable dynamic phenomena at spatio-temporal microscales. This work describes an optimized indirect X-ray imaging microscope designed to achieve high performance at micrometre pixel size and megahertz acquisition speed. The entire detector optical arrangement has an improved sensitivity within the near-ultraviolet (NUV) part of the emitted spectrum (i.e. 310–430 nm wavelength). When combined with a single-crystal fast-decay scintillator, such as LYSO:Ce (Lu2−xYxSiO5:Ce), it exploits the potential of the NUV light-emitting scintillators. The indirect arrangement of the detector makes it suitable for high-dose applications that require high-energy illumination. This allows for synchrotron single-bunch hard X-ray imaging to be performed with improved true spatial resolution, as herein exemplified through pulsed wire explosion and superheated near-nozzle gasoline injection experiments at a pixel size of 3.2 µm, acquisition rates up to 1.4 MHz and effective exposure time down to 60 ps.

This work presents observations of symmetry breakages in the intensity distributions of near-zone-axis convergent-beam electron diffraction (CBED) patterns that can only be explained by the symmetry of the specimen and not the symmetry of the unit cell describing the atomic structure of the material. The specimen is an aluminium–copper–tin alloy containing voids many tens of nanometres in size within continuous single crystals of the aluminium host matrix. Several CBED patterns where the incident beam enters and exits parallel void facets without the incident beam being perpendicular to these facets are examined. The symmetries in their intensity distributions are explained by the specimen morphology alone using a geometric argument based on the multislice theory. This work shows that it is possible to deduce nanoscale morphological information about the specimen in the direction of the electron beam – the elusive third dimension in transmission electron microscopy – from the inspection of CBED patterns.

Metro Bank has been fined nearly GBP 17 million by the UK’s financial watchdog FCA for failings in its money-laundering controls over four years.

Amazon has made a deal to purchase MGM for $8.5 billion.; Credit: /SOPA Images/LightRocket via Getty Images

Editor's note: Amazon is among NPR's financial supporters.

Amazon has made a deal to buy Hollywood studio MGM for almost $8.5 billion. It's the second-largest acquisition for the company after purchasing Whole Foods.

The tech company already runs a film studio, Prime Video streaming service, and video game streaming site Twitch. But the MGM deal is its biggest move into entertainment. Amazon will get the rights to the Golden Age studio's film and television library.

The announcement was made Wednesday morning by the two companies. In a statement, Amazon's senior vice president of Prime Video and Amazon Studios, Mike Hopkins, emphasized the intellectual property value of MGM's vast holdings, which go back to the 1920s. "The real financial value behind this deal," Hopkins said, "is the treasure trove of IP in the deep catalog that we plan to reimagine and develop together with MGM's talented team."

With its mascot lion roaring logo, MGM made such movie classics as Singin' In the Rain and 2001: A Space Odyssey. MGM also owns the EPIX cable channel and runs a TV studio that produced The Handmaid's Tale and Fargo.

MGM also splits the highly lucrative James Bond movie franchise with a family that holds creative control of the 007 movies. According to Variety, as of 2020 the 24 films released so far in the series have generated $16.3 billion in global ticket sales, adjusted for inflation.

In all, MGM's catalog includes more than 4,000 films — including such pop-culture staples as Moonstruck, Legally Blonde, Rocky, The Pink Panther, The Silence of the Lambs and Poltergeist — and 17,000 television shows. Access to those movies and shows will certainly augment Amazon's Prime Video offerings, particularly at a time when other studios and networks have created their own platforms to reach consumers, such as HBO Max, Paramount+ and Disney+. As of last month, there were more than 200 million Amazon Prime account holders worldwide, Amazon founder Jeff Bezos told Variety.

The Wall Street Journal reported on Wednesday that the deal for $8.45 billion includes taking on MGM's current debts. The deal has not yet closed, an Amazon spokesperson noted to NPR, and is subject to regulatory approvals. The company is already facing antitrust inquiries in both the U.S. and Europe.

This content is from Southern California Public Radio. View the original story at SCPR.org.

How many oceans are there? It's National Geographic official now: There are five.; Credit: Alexander Gerst/ESA via Getty Images

Most of us learned about the world's oceans in elementary school. There's the Pacific, the Atlantic, the Indian and the Arctic.

Now, there's a sea change ahead.

Thanks to National Geographic, you'll soon see a fifth ocean on your maps. It's now officially recognizing the Southern Ocean, the waters swirling around Antarctica, marking the first time the organization has made such a change since it started drawing up maps over a century ago.

On World Ocean's Day earlier this week, National Geographic announced the distinction, which many scientists and researchers have unofficially acknowledged for decades.

"Traditionally, there have been the four [oceans] defined primarily by land masses," Alex Tait, National Geographic Society geographer, tells NPR's All Things Considered. "We think it's important to add this fifth ocean region because it's so unique and because we want to bring attention to all areas of the ocean."

National Geographic has produced maps, atlases and globes since 1915. But this is the first time they're drawing up a new map that will recast the oceans.

The move catches up with the National Oceanic and Atmospheric Administration recognition of the Southern Ocean in 1999, when it earned approval from the U.S. Board on Geographic Names.

The change made waves for experts already familiar with the area. For instance, it caught Cassandra Brooks, an assistant professor in environmental studies at the University of Colorado, Boulder, off-kilter.

"To be completely honest with you, I was rather surprised because I had always thought of the Southern Ocean as its own ocean," says Brooks. "I think most of the scientists who work down there really understand how the Southern Ocean is its own thing."

But the Southern is special, according to Brooks, who's spent more than 15 years of her career studying the Antarctic. It's defined by the powerful Antarctic Circumpolar Current, a critical flow that she says helps regulate the Earth's climate.

Brooks says she thinks about the Southern Ocean as "lungs" or "the heart." The ocean is "pumping water throughout the world's oceans," she says.

Both Tait and Brooks hope that this new recognition will create more awareness for a region that's often forgotten.

"Antarctica is so far away that most people don't think about it on a day to day basis. They're not seeing how important it is to literally all of our survival," says Brooks.

This content is from Southern California Public Radio. View the original story at SCPR.org.

SURFSIDE, Fla. — Crews used explosives late Sunday night to demolish the remaining structure at Champlain Towers South in Surfside, Fla.

The heavily damaged condo building was knocked down at about 10:30 p.m. Eastern time.

The targeted blast caused the tower to fold and crumble, sending a large plume of dust and debris over a section of the beachside community. A crowd watching from a distance prayed as the building came down.

Before the structure was leveled, Miami-Dade County police urged residents who live nearby to remain indoors and shelter in place.

Miami-Dade County officials said removing the tower was an essential step so search and rescue teams could resume scouring the rubble pile for victims of the disaster.

Officials suspended recovery efforts on Saturday because of concerns about the danger posed by the unstable building.

"It will be safe to resume the search activities very shortly after the blast and that's when we'll resume it," said Miami-Dade County Mayor Daniella Levine Cava at a press conference Sunday evening.

Demolition of the tower was also accelerated because of Tropical Storm Elsa, which could hit South Florida with high winds and heavy rains as early as Monday.

Search efforts had been ongoing since the morning of June 24, when much of the 12-story condo complex suffered a "progressive collapse" and dozens of apartments were reduced to rubble in a matter of seconds.

The number of confirmed dead from the disaster remains at 24, with the number of people unaccounted for at 121.

Rep. Debbie Wasserman Schultz, D-Fla., told reporters Sunday the demolition of the remaining tower added to the sorrow for families who lived in the complex, destroying homes and possessions.

"So often demolitions of buildings are a spectacle, it's almost like a show," Schultz said. "This demolition is a tragic situation."

Local officials assured former residents and the public that everything possible had been done to rescue pets left behind in the structure.

"Folks can be comfortable we're not leaving anyone behind, including our beloved pets," Surfside Mayor Charles Burkett told reporters.

Multiple investigations are already underway into the cause of the collapse.

Documents acquired by NPR from an anonymous source show the condo association's board received warnings from an engineering firm beginning in 2018 that the structure needed extensive repairs.

A memo sent by the association to Champlain Towers South residents ahead of a May 2021 board meeting acknowledged the "desperate needs of the building."

This content is from Southern California Public Radio. View the original story at SCPR.org.

A new report from the National Research Council lays out options NASA could follow to detect more near-Earth objects (NEOs) – asteroids and comets that could pose a hazard if they cross Earths orbit.

There would not be sufficient benefit to updating estimates of the social cost of carbon (SCC) within a year based only on the revision of a specific climate parameter in the existing framework used by the government’s interagency group to measure the SCC, says a new interim report from the National Academies of Sciences, Engineering, and Medicine.

Achieving net-zero carbon emissions in the U.S. by 2050 is feasible and would not only help address climate change but also build a more competitive economy, increase high-quality jobs, and help address social injustice in the energy system, says a new report from the National Academies of Sciences, Engineering, and Medicine.

The radio frequency spectrum is a natural resource that underpins all wireless activity. A new report assesses the likelihood of harmful interference from operating a radio network near GPS frequency bands, and considers approaches for evaluating concerns.

Employees want workplace flexibility, a greater emphasis on diversity, and impartial hiring processes, while companies are eager to provide fair, engaging and streamlined candidate experiences to attract and retain top talent, according to experts.

According to a new study by scientists at Scripps Institution of Oceanography at the University of California San Diego, a large earthquake on one fault can trigger large aftershocks on separate faults within just a few minutes. These findings have important implications for earthquake hazard prone regions like California where ruptures on complex fault systems may cascade and lead to mega-earthquakes.

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Early on Sept. 12 Tropical Depression 19W formed east of Vietnam. NASA's Aqua satellite passed over the South China Sea and captured a visible image of the storm that had quickly started moving over Vietnam.

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New Eggo Fully Loaded Waffles inspired Eggo's collab with The Surgeon to drop the first-ever Eggo Fully Loaded Kicks in two colorways: Chocolate Chip Brownie and Strawberry Delight.

The pineapple chips are part of the brand's new Crispy Crunchy Dried Fruit Chip collection, and the chocolate-covered macadamias are part of a revamp to its chocolate portfolio.

Amy’s Kitchen, Petaluma, Calif., expects to break ground, early next year, on a 500,000-sq.-ft. manufacturing facility in Goshen, N.Y.

With snacking up during the COVID-19 pandemic, reducing the amount of salt in snacks is an on-trend task for snack companies.

Serving a substantial portion of the Southeast, including the Five Guys hamburger restaurant chain, Masada Bakery has a deep commitment to customer service, quality standards and an ability to flex with a major growth curve in a tough economy. It’s for these and other reasons that we named it our 2012 Wholesale Baker of the Year.

Tool Tips—August 2018

Fresh off a big win in the PR category at Cannes, Matt Neale joins the podcast to talk about award-winning work and more.

The new Market District Apartments in Ohio City will be located near the historic West Side Market, the oldest operating indoor/outdoor market space in Cleveland. Currently, the 13-story development is the largest sustainable, wood-constructed building in the country. Among other facilities, the new 385-unit structure encompasses a first-floor retail space, residential suites on floors two through seven and luxury penthouse suites on the ninth floor, as well as amenity space, including a large rental hall.

There were 5,190 fatal work injuries recorded in the United States in 2021, an 8.9 percent increase from 4,764 in 2020.

Designed for any terrain, new boot offers style and protection. 

Uncle Nearest Inc., the makers of Uncle Nearest Premium Whiskey, announced the arrival of Nearest Green Tennessee Whiskey. 

PepsiCo’s Pepsi, Purchase N.Y, and Little Caesars, Detroit. Mich. announced the return of the fan-favorite Pepsi Pineapple, available exclusively at Little Caesars for a limited time only.

Key Housing is a best-in-class provider of corporate rentals throughout California from Southern to Northern California. The company is announcing its January 2024 featured listing for the Orange County region.

Key Housing is a best-in-class provider of corporate rentals throughout California from Sacramento to San Diego.

The Drug-Releasing Contact Lens Contains a Broad-Spectrum Antibiotic

RDS Real Estate is pleased to present 4577 JD Mouser Parkway #105, a 4000 square foot commercial space with two 14-foot bay doors, loading dock, office and restroom.

Winners selected for demonstration of long-term value through entrepreneurial spirit, purpose, growth and impact.

Owner Jakayla Shurm works with all levels of volleyball athletes, focusing on specialized skill training, speed, strength, agility and stamina.

Peerbridge Health is pleased to announce the successful completion and findings of its prospective, feasibility clinical trial, resulting in a statistically significant 91.2% predictive accuracy for the determination of apnea-hypopnea index (AHI).

Bringing Advanced Dental Sleep Medicine to North Miami Beach Residents

We were born from the need to create a quality apparel brand whose designs scream a love for sneakers, and whose collections are the completion of every sneakerhead's wardrobe.

Brett L. McNeal Sr., MS, is honored for expertise in public school sports

The recently expanded 917 Industrial Park is situated in an ideal location near Alvarado and features flexible, affordable leases on warehouse office space.

The recently renovated 917 Industrial Park near Alvarado offers flexible, affordable leases on warehouse office space in a location accessible to major roadways.

$347,591.16 raised in this 11th annual event to help Georgians experiencing food insecurity.

Engineered to deliver unparalleled energy efficiency and versatility, the GK-F16 is set to revolutionize lighting solutions for a variety of large-scale environments such as warehouses, supermarkets, and stadiums.

Mr. Sulonen's own injury inspired him to become an athletic trainer and rehabilitator

'AIoT Week Korea 2022' opened this year with the theme of 'The Key to the Future, Intelligent IoT Technology, A Convenient and Safe World', and held 8 diverse events including the Korea Exhibition, Conference, and Business Networking.

Recognized as one of the Best Workplaces in 2023, StoneAge is a leader and innovator in the hydroblasting industry that recently became 100% employee owned.

Trio of Pure Nut Butters Available in Peanut, Almond, and Cashew Made Fresh to Order on Pattison Avenue in Philly

Franchise Group Joins the Hunger-Fighting Program

Fine fast-casual Mediterranean concept ignites global expansion with the opening of its first international location in Canada.

StoneAge Inc., leading global manufacturer of waterblast tools and equipment, welcomes new Director of Engineering, Kelley Crush.

apZme's Dr. Jeff Rodgers, DMD, Joins National Group of Elite Providers to Offer Oral Appliance Therapy to Veterans Through the VA Community Care Network