
Moiré photonics
Articles
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Mar 30, 2023 |
science.org | Trevor M. Nolan |Moiré photonics |Luojun Du |Qiang Feng
Elevating Wacker to a higher stateWacker oxidation uses palladium catalysis to produce aldehydes or ketones from olefins and water. The generally accepted mechanism relies on a hydride migration, which is not possible in geminally disubstituted olefins, which lack the requisite hydrogen. Feng et al. report a method to promote carbon migration in this class of substrates by oxidizing a catalyst intermediate to the PdIV state.
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Mar 30, 2023 |
science.org | Trevor M. Nolan |Moiré photonics |Luojun Du |Thomas Cullen
Not a toothy grinTheropod dinosaurs such as the iconic Tyrannosaurus rex have long been portrayed with their teeth fully visible, similar to extant crocodilians. This pattern of portrayal largely had to do with relatedness between dinosaurs and crocodilians and the relationship between tooth and jaw size. Cullen et al.
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Mar 30, 2023 |
science.org | Trevor M. Nolan |Moiré photonics |Luojun Du |Barbara U. Schraml
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Mar 30, 2023 |
science.org | Trevor M. Nolan |Moiré photonics |Luojun Du |Rodrigo Gonzalez |
Nociceptors and dendritic cells tangoNociceptors are afferent neurons that transmit pain and itch sensations in response to noxious stimuli. Although they can influence dendritic cells (DCs), the specifics of nociceptor–DC cross-talk have been unclear. Hanč et al. found that nociceptors can control DC functions in at least three ways that are context dependent (see the Perspective by Schraml). Nociceptors can attract DCs to tissues and regulate how long they stay there through the chemokine CCL21.
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Mar 30, 2023 |
science.org | Trevor M. Nolan |Moiré photonics |Luojun Du |Duncan Palmer
Dominance in the BiobankAccording to classical genetics, traits are usually divided into dominant and recessive, with all-or-none phenotypes. Such binary traits are often observed in plant and animal breeding, but they are rarely seen in human studies outside of monogenic disorders with Mendelian inheritance patterns. Instead, many traits included in human genomic studies exhibit additive effects based on gene dosage. Palmer et al.
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