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- Terpenes (1)
Terpenes are one of the largest and most diverse class of natural products, produced by organisms from all kingdoms of life and with important applications in the pharma, flavor and fragrance industries. Well-known examples of terpenes are the pharmaceuticals artemisinin and taxol, the flavor and fragrance compounds menthol, santalol and sclareol, the structural material polyisoprene and the biofuel precursor farnesene. The methods and results presented in this work offer a variety of ways to modify terpene precursors for the creation of new terpene molecules. The application of these methodologies in well-established production systems could lead to the production of new substances, with applications in the industrial fields of pharmaceuticals, flavors and fragrances, and biofuels.
Non-standard errors
(2021)
In statistics, samples are drawn from a population in a data-generating process (DGP). Standard errors measure the uncertainty in sample estimates of population parameters. In science, evidence is generated to test hypotheses in an evidence-generating process (EGP). We claim that EGP variation across researchers adds uncertainty: non-standard errors. To study them, we let 164 teams test six hypotheses on the same sample. We find that non-standard errors are sizeable, on par with standard errors. Their size (i) co-varies only weakly with team merits, reproducibility, or peer rating, (ii) declines significantly after peer-feedback, and (iii) is underestimated by participants.