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26441
Congenital Zika syndrome and neuroimaging findings: what do we know so far?
Publicado 2017“…<div><p>Abstract Although infection with the Zika virus was first recognized in 1942, it received little attention until 2007, when a true pandemic spread throughout Africa, Asia, and the Americas. Since then, numerous forms of central nervous system involvement have been described, mainly malformations related to congenital infection. …”
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26442
Lactone Radical Cyclizations and Cyclization Cascades Mediated by SmI<sub>2</sub>–H<sub>2</sub>O
Publicado 2012“…The cyclizations proceed by the trapping of radical anions formed by electron transfer reduction of the lactone carbonyl.…”
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26443
Electrophilic Interaction of 2,3-Allenoates with PhSeCl. An Unexpected Highly Stereoselective Synthesis of 3-Phenylseleno-4-oxo-2(<i>E</i>)-alkenoates
Publicado 2006“…A possible mechanism involving a decomposition of selenate esters was proposed.…”
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26444
Supplementary Figure S2. Characterization of the B-cell lymphoma PDX models from B-Cell Lymphoma Patient-Derived Xenograft Models Enable Drug Discovery and Are a Platform for Perso...
Publicado 2023“…B-C, PDX tumors invaded the mouse spleen and formed splenomegaly. D, Patient abdomen PET/CT images of PT1 and PT5 showed splenomegaly (left panel). …”
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26445
A Tunable Route for the Synthesis of Azomethine Imines and β‑Aminocarbonyl Compounds from Alkenes
Publicado 2012“…A thermal, concerted alkene aminocarbonylation pathway involving an imino-isocyanate intermediate is proposed and supported by DFT calculations. …”
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26446
Chain Transfer to Solvent in Propene Polymerization with Ti Cp-phosphinimide Catalysts: Evidence for Chain Termination via Ti–C Bond Homolysis
Publicado 2016“…End-group analysis suggests that these are formed after a 2,1-insertion event; density functional theory (DFT) studies support a mechanism involving homolysis of a Ti-<i>sec</i>-alkyl bond. …”
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26447
Dissociative Electron Attachment to Anthralin to Model Its Biochemical Reactions
Publicado 2015“…A likely mechanism for the biochemical transformations of anthralin under reductive conditions in vivo is hypothesized on the basis of its DEA properties. The involvement of excited electronic states generated by ultraviolet irradiation of skin is discussed.…”
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26448
Lactone Radical Cyclizations and Cyclization Cascades Mediated by SmI<sub>2</sub>–H<sub>2</sub>O
Publicado 2012“…The cyclizations proceed by the trapping of radical anions formed by electron transfer reduction of the lactone carbonyl.…”
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26449
1,4-Hydroboration Reactions of Electron-Poor Aromatic Rings by N‑Heterocyclic Carbene Boranes
Publicado 2020“…When regioisomers are possible, the more crowded (doubly ortho-substituted) product is formed preferably or exclusively. The mechanism may involve oxidation of the NHC-borane to an NHC-boryl radical, reduction of the electron-poor aromatic ring to a radical anion, coupling of the radical and the radical anion to give a cyclohexadienyl anion, and finally regioselective protonation.…”
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26450
1,4-Hydroboration Reactions of Electron-Poor Aromatic Rings by N‑Heterocyclic Carbene Boranes
Publicado 2020“…When regioisomers are possible, the more crowded (doubly ortho-substituted) product is formed preferably or exclusively. The mechanism may involve oxidation of the NHC-borane to an NHC-boryl radical, reduction of the electron-poor aromatic ring to a radical anion, coupling of the radical and the radical anion to give a cyclohexadienyl anion, and finally regioselective protonation.…”
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26451
A Tunable Route for the Synthesis of Azomethine Imines and β‑Aminocarbonyl Compounds from Alkenes
Publicado 2012“…A thermal, concerted alkene aminocarbonylation pathway involving an imino-isocyanate intermediate is proposed and supported by DFT calculations. …”
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26452
The Isolation of [Pd{OC(O)H}(H)(NHC)(PR<sub>3</sub>)] (NHC = N‑Heterocyclic Carbene) and Its Role in Alkene and Alkyne Reductions Using Formic Acid
Publicado 2016“…The [Pd(SIPr)(PCy<sub>3</sub>)] complex efficiently promotes a tandem process involving dehydrogenation of formic acid and hydrogenation of C–C multiple bonds using H<sub>2</sub> formed in situ. …”
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26453
Chain Transfer to Solvent in Propene Polymerization with Ti Cp-phosphinimide Catalysts: Evidence for Chain Termination via Ti–C Bond Homolysis
Publicado 2016“…End-group analysis suggests that these are formed after a 2,1-insertion event; density functional theory (DFT) studies support a mechanism involving homolysis of a Ti-<i>sec</i>-alkyl bond. …”
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26454
fig1.tif
Publicado 2017“…<p>Figure 1 | Schematic of long-range ordered pyroprotein-based fibre. a, The structure of silk composed of highly aligned β-sheet crystals organised by the self-assembly of GX repeat units through a number of inter-/intra-chain hydrogen bonds and surrounding amorphous domains consisting of non-repetitive peptide chains. b, At temperatures in excess of 800 °C, disordered poly-hexagonal carbon units are formed by the pyrolysis of poly-peptide molecules. c, Following heating to 2,800 °C, the disordered poly-hexagonal carbon units are developed into pseudo-graphitic domains. d, By axial stretching, pyroprotein-based fibres with well-arranged poly-hexagonal carbon units along the fibre axis are formed by heating to 800 °C. e, Long-range ordered graphitic structures evolve by following heating to 2,800 °C.…”
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26455
ENVIRONMENTAL ANALYSIS THROUGH NETWORK GRAPHICS
Publicado 2018“…<p></p><p>ABSTRACT This article aims to discuss the erosive problem of the high basin of Areia Dourada stream, Marabá Paulista (SP), through a joint evaluation of the erosive forms with the physical and anthropic variables. …”
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26456
Ramped PyrOx thermographs.
Publicado 2024“…The CO<sub>2</sub> that evolved as the sample was combusted at increasing temperature is normalized to the total amount of CO<sub>2</sub> that evolved during the sample preparation, so the area under each Gaussian curve is equal to 1. …”
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26457
Fabrication of Lipid Nanotubules by Ultrasonic Drag Force
Publicado 2021“…The stretching speed of the lipid nanotubules can reach 33 μm/s, approximately 10 times faster than that of the existing methods. The formed lipid nanotubules have a diameter of 600 ± 100 nm (>80%). …”
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26458
Fabrication of Lipid Nanotubules by Ultrasonic Drag Force
Publicado 2021“…The stretching speed of the lipid nanotubules can reach 33 μm/s, approximately 10 times faster than that of the existing methods. The formed lipid nanotubules have a diameter of 600 ± 100 nm (>80%). …”
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26459
Fabrication of Lipid Nanotubules by Ultrasonic Drag Force
Publicado 2021“…The stretching speed of the lipid nanotubules can reach 33 μm/s, approximately 10 times faster than that of the existing methods. The formed lipid nanotubules have a diameter of 600 ± 100 nm (>80%). …”
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26460
Fabrication of Lipid Nanotubules by Ultrasonic Drag Force
Publicado 2021“…The stretching speed of the lipid nanotubules can reach 33 μm/s, approximately 10 times faster than that of the existing methods. The formed lipid nanotubules have a diameter of 600 ± 100 nm (>80%). …”