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Intervening on partial anomalous pulmonary venous return without leaving a trace Ready for a minimally invasive future?
Am J Cardiol
December 2024
Division of Cardiovascular Diseases, Department of Medicine, University of Tennessee Health Science Center, Memphis, TN. Electronic address:
Turner syndrome is a rare chromosomal abnormality in women that is caused by a partial or complete loss of one X chromosome and is often associated with a spectrum of congenital cardiac abnormalities, including cardiac shunts. A 27-year-old woman with Turner syndrome was also found to have right ventricular dilation, partial anomalous pulmonary venous return, and possible atrial septal defect. She was scheduled for elective surgical repair.
View Article and Find Full Text PDFPercutaneous Transcatheter Approach to Partial Anomalous Pulmonary Venous Return: A Case Series.
Am J Cardiol
December 2024
Division of Cardiology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA. Electronic address:
Our study presents cases demonstrating the technique and safety of percutaneous occlusion of adult patients with partial anomalous pulmonary venous return (PAPVR). PAPVR is a rare condition that is traditionally treated surgically. Percutaneous interventions are rarely reported.
View Article and Find Full Text PDFStatistics of random walks in geologically relevant conductance fields.
Phys Rev E
November 2024
Sonny Astani Department of Civil and Environmental Engineering, University of Southern California, Los Angeles, California 90089-2531, USA.
Statistics of diffusion, modeled by random walks, such as the mean number of distinct sites visited S(t) at time t, the mean probability P_{0}(t) of being at the origin of the walk, and the mean-squared displacements 〈R^{2}(t)〉 of the random walkers have been studied extensively in the past in both regular lattices and such disordered media as percolation clusters and other fractal structures, and universal power laws for such quantities have been derived. S(t) provides insight into reaction properties of geological formations, while P_{0}(t) is directly linked with the problem of back diffusion in remediation of groundwater aquifers. In all such studies, it was assumed that the conductances of the bonds that connect nearest-neighbor sites of the lattices are equal.
View Article and Find Full Text PDFAnomalous Role of Carbon in Pd-Catalyzed Selective Hydrogenation.
Angew Chem Int Ed Engl
December 2024
Department of Chemical Engineering, Louisiana State University, Baton Rouge, Louisiana, 70803, United States.
Carbonaceous species, including subsurface carbidic carbon and surface carbon, play crucial roles in heterogeneous catalysis. Many reports suggested the importance of subsurface carbon in the selective hydrogenation of alkynes over Pd-based catalysts. However, the role of surface carbon has been largely overlooked.
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