Results 161 to 170 of about 2,042,628 (268)

Contrasting Solution and Gas‐Phase: Understanding  Structure and Reactivity of Gold‐Diazenyl Intermediates

open access: yesHelvetica Chimica Acta, Accepted Article.
Gold(I)‐catalyzed cross‐coupling reactions with aryldiazonium salts are instrumental in forming C‐C and C‐N bonds. However, mechanistic details remain unclear, particularly the role of diazenyl intermediates. We employ stoichiometric reactions, NMR spectroscopy, electrospray ionization mass spectrometry, and infrared photodissociation spectroscopy to ...
Florian Ruepp   +4 more
wiley   +1 more source

The relationship between cellular protein content and selenium accumulation in freshwater microalgae

open access: yesIntegrated Environmental Assessment and Management, EarlyView.
Abstract Variability in the bioconcentration of selenium (Se) by primary producers at the base of the food web results in uncertainty in predictions of bioaccumulation and ecological risk to higher trophic level organisms. Water chemistry, speciation of Se, and periphyton community composition have all been suggested as factors that contribute to ...
Courtney Bogstie   +3 more
wiley   +1 more source

Screening outcomes at second FIT screening in individuals with a first time negative FIT‐result or low‐risk adenomas: Results from a nationwide FIT screening program

open access: yesInternational Journal of Cancer, EarlyView.
What's New? Fecal immunochemical test (FIT) screening is increasingly common as a population‐based screening tool for colorectal cancer (CRC). If the follow‐up colonoscopy after a positive FIT detects only low‐risk adenomas, those participants are recommended to continue biennial screenings, the same as people with negative FIT results.
Pernille Thordal Larsen   +4 more
wiley   +1 more source

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