Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1103/physrevc.52.1924 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Curvature Dependence of Gravitational-Wave Tests of General Relativity.
Phys Rev Lett
December 2024
Center for Computational Astrophysics, Flatiron Institute, 162 5th Avenue, New York, New York 10010, USA.
High-energy extensions to general relativity modify the Einstein-Hilbert action with higher-order curvature corrections and theory-specific coupling constants. The order of these corrections imprints a universal curvature dependence on observations while the coupling constant controls the deviation strength. In this Letter, we leverage the theory-independent expectation that modifications to the action of a given order in spacetime curvature (Riemann tensor and contractions) lead to observational deviations that scale with the system length scale to a corresponding power.
View Article and Find Full Text PDFClinical Manifestations.
Alzheimers Dement
December 2024
NYU Grossman School of Medicine, New York, NY, USA.
Background: We examined racial differences between measures of limbic white matter tracts and objective sleep parameters in cognitively unimpaired older-adults.
Method: This cross-sectional study included 170 community-dwelling cognitively unimpaired older-adults (mean±SD: age = 67.2±5.
Clinical Manifestations.
Alzheimers Dement
December 2024
National Institute of Mental Health and Neuro Sciences, Bengaluru, Karnataka, India.
Background: Bilingualism and education have been known to enhance reserve/resilience through white matter (WM) microstructural changes. Reserve/resilience is the ability of the brain to cope with neurocognitive adversities. Two key hypotheses have been proposed under this framework.
View Article and Find Full Text PDFOverlapping qubits from non-isometric maps and de Sitter tensor networks.
Nat Commun
January 2025
QTF Centre of Excellence, Department of Physics, University of Helsinki, Helsinki, Finland.
The emergence of a local effective theory from a more fundamental theory of quantum gravity with seemingly fewer degrees of freedom is a major puzzle of theoretical physics. A recent approach to this problem is to consider general features of the Hilbert space maps relating these theories. In this work, we construct approximately local observables, or overlapping qubits, from such non-isometric maps.
View Article and Find Full Text PDFEarly Identification of Myocardial Microstructural Alterations in Hypertrophic Cardiomyopathy with in Vivo Cardiac Diffusion-Tensor Imaging.
Radiol Cardiothorac Imaging
February 2025
From the Department of Magnetic Resonance Imaging, Radiology Imaging Center, Fuwai Hospital, National Center for Cardiovascular Diseases, State Key Laboratory of Cardiovascular Disease, Chinese Academy of Medical Sciences and Peking Union Medical College, Beilishi Road No. 167, Xicheng District, Beijing 100037, China (Z.D., Y.T., G.Y., X.M., S.Y., J.W., X.X., K.Y., M.L., X.C., S.Z.); Clinical and Technical Support, Philips Healthcare, Beijing, China (P.S.); and Paul C. Lauterbur Research Center for Biomedical Imaging, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, SZ University Town, Shenzhen, China (K.Z., Y.Z.).
Purpose To explore the diffusion characteristics of hypertrophic cardiomyopathy (HCM) using in vivo cardiac diffusion-tensor imaging (cDTI) and to determine whether cDTI could help identify abnormal myocardium beyond cardiac MRI findings of fibrosis and hypertrophy. Materials and Methods In this prospective study conducted from April to August 2023, participants with HCM and healthy volunteers were enrolled for cardiac MRI evaluation, including cine, late gadolinium enhancement (LGE), T1 mapping, and cDT imaging, using a 3.0-T scanner.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!