Daily Archives: July 6, 2019

Self-assembling materials can form patterns that might be useful in optical devices

Scanning electron microscope images of the crystal structure of the block copolymer material, illustrating their unusual quasicrystal symmetries. Regions with different symmetry properties are highlighted in different colors, and examples of the different patterns, which resemble some ancient tiling patterns, are shown in the accompanying diagrams. Credit: Massachusetts Institute of …

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Tech jobs soar to all-time record heights in Bay Area

The Bay Area’s technology boom is so robust that it has reached record highs, but the remarkable surge has also reduced Santa Clara County’s share of tech employment in the nine-county region as the San Francisco-San Mateo area has gained a bigger piece of the pie. Tech employment—the economic engine …

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UA explores the solar system

Gerard Kuiper points out features on a lunar hemisphere to team members Ewen Whitaker (left) and Ray Heacock. On the table is a model of the Ranger spacecraft, which took the first close-up images of the moon. The lunar hemisphere is on display at UA’s Flandrau Science Center & Planetarium. …

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The roles of caspase-1 and gasdermin D in apoptosis and pyroptosis

Recently, it has been demonstrated that activated caspase-1 induces pyroptosis, inflammatory and necrosis-like programmed cell death, although it was previously thought to induce apoptosis. It was not known why caspase-1 induces two different modes of programmed cell death with distinctive characteristics depending on the biological context. Credit: Kanazawa University Caspase-1 …

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Tuning the energy levels of organic semiconductors

Examples of film structures used for the calculations of the charge – quadrupole interaction energy (EQ) of crystalline films in edge-on (a) and face-on orientation (b). The molecules are represented by discs for illustration purpose. The length scale is given in Å. EQ values are calculated for the red molecules …

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NUS quantum satellite combines art with science

SpooQy-1 was ejected from the Japanese Small Satellite Orbital Deployer past the International Space Station’s (ISS) solar arrays. This photograph was taken by an astronaut on the ISS. Credit: NASA A satellite built by the National University of Singapore (NUS) entered orbit in June carrying both a high-tech quantum device …

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Molecular energy machine as a movie star

Tobias Weinert, biochemist at PSI, with the experimental set-up for the “excitation query” crystallography at the SLS: An injector produces a 50 micrometer (like a hair) thin stream of a toothpaste-like mass with the protein crystals grown in it. A small laser diode, comparable to a conventional laser pointer, is …

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not so eco-friendly after all?

E-scooters touted as zero-carbon urban transport are flooding city streets worldwide, but just how green they are remains an open question E-scooters touted as zero-carbon urban transport are flooding city streets worldwide, but just how green they are remains an open question. The companies—from multinationals to local start-ups—distributing them insist …

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