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Results: 18870
Stereochemistry of post-transition metal oxides
The chemistry of post transition metals is dominated by the group oxidation state N and a lower N-2 oxidation state, which is associated with occupation of a metal s(2) lone pair, as found in compounds of Tl(I), Pb(II) and...
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Remote stereocontrol in [3,3]-sigmatropic rearrangements
The Ireland - Claisen [3,3]-sigmatropic rearrangement has been used to access biologically important β,β′-dihydroxy α-amino acids. The rearrangement reported is highly stereoselective and offers excellent levels of remote...
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Stereochemistry of post-transition metal oxides
The chemistry of post transition metals is dominated by the group oxidation state N and a lower N-2 oxidation state, which is associated with occupation of a metal s(2) lone pair, as found in compounds of Tl(I), Pb(II) and...
Published by:
Using generalized linear models to implement g-estimation for survival data with time-varying confounding.
Using data from observational studies to estimate the causal effect of a time-varying exposure, repeatedly measured over time, on an outcome of interest requires careful adjustment for confounding. Standard regression adjustment...
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Remote stereocontrol in [3,3]-sigmatropic rearrangements
The Ireland - Claisen [3,3]-sigmatropic rearrangement has been used to access biologically important β,β′-dihydroxy α-amino acids. The rearrangement reported is highly stereoselective and offers excellent levels of remote...
Published by:
Using generalized linear models to implement g‐estimation for survival data with time‐varying confounding
Using data from observational studies to estimate the causal effect of a time‐varying exposure, repeatedly measured over time, on an outcome of interest requires careful adjustment for confounding. Standard regression adjustment...
Published by: Statistics in Medicine
RNA promotes phase separation of glycolysis enzymes into yeast G bodies in hypoxia.
In hypoxic stress conditions, glycolysis enzymes assemble into singular cytoplasmic granules called glycolytic (G) bodies. G body formation in yeast correlates with increased glucose consumption and cell survival. However, the...
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Determination of the Poisson ratio of (001) and (111) oriented thin films of In(2)O(3) by synchrotron-based x-ray diffraction
The Poisson ratio. of In(2)O(3) has been determined by measurement of the covariation of in-plane and out-of-plane lattice parameters of strained thin films grown epitaxially on (111) and (001) oriented cubic Y-stabilized ZrO(2)...
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The nature of electron lone pairs in BiVO4
The electronic structure of BiVO4 has been studied by x-ray photoelectron, x-ray absorption, and x-ray emission spectroscopies, in comparison with density functional theory calculations. Our results confirm both the direct band...
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G-Quadruplexes
Guanine (G)-rich sequences in nucleic acids can assemble into G-quadruplex structures that involve G-quartets linked by loop nucleotides. The structural and topological diversity of G-quadruplexes have attracted great attention...
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Nature of the band gap and origin of the conductivity of PbO(2) revealed by theory and experiment
Lead dioxide has been used for over a century in the lead-acid battery. Many fundamental questions concerning PbO(2) remain unanswered, principally: (i) is the bulk material a metal or a semiconductor, and (ii) what is the...
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Segmentation of Pectoral Muscle in Mammograms Using Granular Computing
In this paper, pectoral muscle segmentation was performed to study the presence of malignancy in the pectoral muscle region in mammograms. A combined approach involving granular computing and layering was employed to locate the...
Nature of the band gap and origin of the conductivity of PbO(2) revealed by theory and experiment
Lead dioxide has been used for over a century in the lead-acid battery. Many fundamental questions concerning PbO(2) remain unanswered, principally: (i) is the bulk material a metal or a semiconductor, and (ii) what is the...
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R/BHC
BACKGROUND: Although the use of clustering methods has rapidly become one of the standard computational approaches in the literature of microarray gene expression data analysis, little attention has been paid to uncertainty in...
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Determination of the Poisson ratio of (001) and (111) oriented thin films of In(2)O(3) by synchrotron-based x-ray diffraction
The Poisson ratio. of In(2)O(3) has been determined by measurement of the covariation of in-plane and out-of-plane lattice parameters of strained thin films grown epitaxially on (111) and (001) oriented cubic Y-stabilized ZrO(2)...
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Receptor- G Protein Interactions in the Visual System: A Study of Structures and Mechanisms That Couple the Cytoplasmic Surface of Rhodopsin to the Nucleotide-Binding Pocket of Transducin
Ethan P Marin
Jan 01, 0001
The intermolecular interaction between the photoreceptor rhodopsin and the heterotrimeric G protein transducin (Gt) initiates the vertebrate phototransduction cascade. This interaction also serves as a model system for the study...
Published by: Rockefeller University
The nature of electron lone pairs in BiVO4
The electronic structure of BiVO4 has been studied by x-ray photoelectron, x-ray absorption, and x-ray emission spectroscopies, in comparison with density functional theory calculations. Our results confirm both the direct band...
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rpsftm
Treatment switching in a randomised controlled trial occurs when participants change from their randomised treatment to the other trial treatment during the study. Failure to account for treatment switching in the analysis (i.e....
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Obsessive-compulsive disorder in adults with high-functioning autism spectrum disorder
Background: Little is known about the symptom profile of obsessive-compulsive disorder (OCD) in individuals who have autism spectrum disorders (ASD). It is also unknown whether self-report questionnaires are useful in measuring...
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Structural basis of G-quadruplex unfolding by the DEAH/RHA helicase DHX36.
Guanine-rich nucleic acid sequences challenge the replication, transcription, and translation machinery by spontaneously folding into G-quadruplexes, the unfolding of which requires forces greater than most polymerases can...
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