Results 161 to 170 of about 9,616,561 (366)

The Chemistry and Biology of the Tetrodotoxin Natural Product Family

open access: yesAngewandte Chemie International Edition, Accepted Article.
Tetrodotoxin is a neurotoxic marine alkaloid, first isolated in 1909 from pufferfish and named after the biological order tetraodontiformes. Since its structural elucidation in 1964, it has attracted the interest of synthetic organic chemists due to its exceptional polarity, complex architecture, and important biological activity.
Benedikt Nißl   +6 more
wiley   +1 more source

Is Phenylnitrene a Missing Link in the Formation of Polycyclic Aromatic Nitrogen Heterocycles?

open access: yesAngewandte Chemie International Edition, EarlyView.
A new formation pathway for polycyclic aromatic nitrogen heterocycles (PANHs) has been found. The reaction of phenylnitrene and the propargyl radical leads to quinoline, proving that nitrenes are suitable precursors for nitrogen incorporation mechanisms.
Rahel Arns   +6 more
wiley   +1 more source

Human interparietal bones: Examination of existing classification schemes and development of a graphic library depicting variations

open access: yesThe Anatomical Record, EarlyView.
Examples from the graphic library depicting morphologies of interparietal bones, ossicles at lambda, mendosal sutures, and intrasutural ossicles. Abstract Due to its complex ossification during development, the superior region of the human occipital bone is a frequent site of supernumerary bones known as interparietal bones.
Melissa D. Clarkson   +4 more
wiley   +1 more source

The history of anatomical engagement

open access: yesAnatomical Sciences Education, EarlyView.
Abstract The public's fascination with anatomy has evolved over time and progressed from avoidance of the tainted yet saintly corpse, to their fascination with cabinets of curiosities. The current narrative review explores public engagement (PE), from its potential origins as cave paintings, to the rise of the disciplinarity of anatomy.
Quenton Wessels, Adam M. Taylor
wiley   +1 more source

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