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Researchers Observe Picosecond Charge Transfer in Peptides Written by AZoMApr 15 2021 The transfer of electrons between molecules forms the basis of biological energy flows, for example, in photosynthesis and respiration. The extended peptide (top) does not mediate charge transfer (detectable charge transfer). The folded peptide (bottom) mediates picosecond charge transfer along the hydrogen bonds between the donor and the acceptor (the hydrogen bonds are indicated with thin red dotted lines). Image Credit: Valentine Vullev. Although electron transfer is crucial for sustaining life, factors that determine its rate, particularly over long distances, are not clearly understood since the systems that mediate these ultrafast processes are highly complicated. ....
The National Trust has ordered all of its volunteers to undergo diversity training as the organisation continues its woke rebrand. The heritage body is forcing everyone, including rangers who do not work with the public, to carry out the training as they return to work from lockdown. It has already caused friction among volunteers and led to several resignations, with one slamming the Trust s new political agenda . The National Trust has ordered all of its volunteers to undergo diversity training as the organisation continues its woke rebrand The everyday inclusion training is run online alongside courses including fire safety and data protection. ....
E-Mail Biological energy flows, such as in photosynthesis and respiration, depend on the transfer of electrons from one molecule to another. Despite its importance to sustaining life, factors governing the rate of electron transfer, especially over long distances, are not well understood because the systems that mediate such ultrafast processes are very complex. A better understanding of electron transfer rates would help scientists improve chemical transformations, energy conversion, electronic devices, and photonic technologies. Now, an international team of researchers led by UC Riverside has observed picosecond charge transfer mediated by hydrogen bonds in peptides. A picosecond is one trillionth of a second. As short-chain analogs of proteins, crucially important building blocks of living organisms, peptides are chains of chemically linked amino acids. The discovery shows the role of hydrogen bonds in electron transfer. The results are published in ....
National Trust members have launched a campaign against the charity s woke agenda as it was today accused of lecturing the public and demonising history. Restore Trust was established following furious criticism of a report detailing links between 93 of the Trust s properties and historic slavery and colonialism. The group, described as a forum where members can discuss their concerns about the future of the charity , says visitors should not leave venues feeling their history has been demonised . They say there has been a relentless diminution of standards at the Trust and have accused the charity of patronising and lecturing the public, according to the Telegraph. ....
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