منابع مشابه
Basal ganglia—thalamus and the “crowning enigma”
When Hubel (1982) referred to layer 1 of primary visual cortex as "… a 'crowning mystery' to keep area-17 physiologists busy for years to come …" he could have been talking about any cortical area. In the 80's and 90's there were no methods to examine this neuropile on the surface of the cortex: a tangled web of axons and dendrites from a variety of different places with unknown specificities a...
متن کاملCrowning achievement: a case of dental aspiration.
Aspiration of foreign bodies during dental procedures is a rare but potentially serious complication. We present a case of a 75-year-old man who aspirated a dental crown requiring flexible bronchoscopic retrieval. We discuss the risk factors for aspiration, the radiographic features of diagnosis, and the techniques for management and retrieval.
متن کاملCrowning Proteins: Modulating the Protein Surface Properties using Crown Ethers**
Crown ethers are small, cyclic polyethers that have found wide-spread use in phase-transfer catalysis and, to a certain degree, in protein chemistry. Crown ethers readily bind metallic and organic cations, including positively charged amino acid side chains. We elucidated the crystal structures of several protein-crown ether co-crystals grown in the presence of 18-crown-6. We then employed biop...
متن کاملTotal Synthesis: A Crowning Achievement in Organic Chemistry
Discoveries in organic chemistry have had profound impacts in many disciplines of science through the past century. Within the field of organic chemistry, research in total synthesis of natural products has provided a means of developing and advancing the study of different types of chemistry. The discovery of novel chemical transformations, use of total synthesis products in biochemical assay ...
متن کاملManaging the challenge of crowning the single central maxillary incisor.
Esthetic restorative dentistry presents multiple challenges for the restorative team. One of the most significant challenges is achieving an accurate match of a single maxillary central incisor crown. This procedure may very well be one of the most critical procedures in esthetic restorative dentistry. Accurate shade selection and shade matching are a paramount step for achieving a natural blen...
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ژورنال
عنوان ژورنال: Nordicom Review
سال: 2019
ISSN: 2001-5119
DOI: 10.2478/nor-2019-0005