Computers Create Recipe for 2 new Magnetic Materials

1. A microscopic look at the atomic structure of a cobalt-manganese-titanium mixture (Co2MnTi) that is one of the newly predicted and manufactured magnetic materials. Each color shows the distribution of a different element. The uniformity for each material matches the predictions for a stable three-element material. 2. A microscopic look at the atomic structure of a manganese-platinum-palladium mixture (Mn2PtPd), that is one of the newly predicted and manufactured magnetic materials. Each color shows the distribution of a different element. The uniformity for each material -- with the exception the small spots indicating a different phase state -- matches the predictions for a stable three-element material.

1. A microscopic look at the atomic structure of a cobalt-manganese-titanium mixture (Co2MnTi) that is one of the newly predicted and manufactured magnetic materials. Each color shows the distribution of a different element. The uniformity for each material matches the predictions for a stable three-element material.
2. A microscopic look at the atomic structure of a manganese-platinum-palladium mixture (Mn2PtPd), that is one of the newly predicted and manufactured magnetic materials. Each color shows the distribution of a different element. The uniformity for each material — with the exception the small spots indicating a different phase state — matches the predictions for a stable three-element material.

Magnets built atom-by-atom in first effort of its kind, using high-throughput computa...

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Chaotic Flows and the Origin of Life

Chaotic advection accelerates interfacial transport under hydrothermally relevant conditions Credit: Proceedings of the National Academy of Sciences

Chaotic advection accelerates interfacial transport under hydrothermally relevant conditions Credit: Proceedings of the National Academy of Sciences

A Texas A&M University team has uncovered a physical mechanism that may help answer one of the major questions concerning the origin of life, “How did the building blocks form?” Scientists have long known that the building blocks of life – amino acids, nucleobases and sugars – were present in the early ocean, but they were very low in concentration. In order for life to emerge, these building blocks needed to be combined and enriched into long-chain macromolecules.

“In the early ocean, those building blocks were present in the environment,” Ugaz said. “They were there, but they were so dilute; there is a question about how they combined...

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Unraveling the Mechanism of Skin Barrier Formation

PNPLA1 is involved in acylceramide synthesis.

PNPLA1 is involved in acylceramide synthesis.

The gene responsible for generating acylceramide, the key lipid in forming the skin barrier that protects us from pathogens, allergens and other harmful substances. This finding could prove crucial in developing medicines for treating atopic dermatitis and ichthyosis. Defects of the skin barrier can trigger skin diseases such as atopic dermatitis, which afflicts ~10% of the population in some developed countries. Acylceramide, a lipid only found in skin, plays a pivotal role in forming this barrier. Although most of the genes needed to generate this special lipid have been recently identified, the gene responsible in the final step to produce acylceramide has been missing...

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Method improves Semiconductor Fiber Optics, paves way for developing Devices

Amorphous silicon core inside a 1.7-micron inner-diameter glass capillary Image: Penn State

Amorphous silicon core inside a 1.7-micron inner-diameter glass capillary Image: Penn State

A new method to improve semiconductor fiber optics may lead to a material structure that might one day revolutionize the global transmission of data, according to an interdisciplinary team. Researchers are working with semiconductor optical fibers, which hold significant advantages over silica-based fiber optics, the current technology used for transmitting nearly all digital data. Silica – glass – fibers can only transmit electronic data converted to light data. This requires external electronic devices that are expensive and consume enormous amounts of electricity...

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