Results 81 to 90 of about 1,474,906 (296)
A random matrix approach to credit risk. [PDF]
PLoS ONE, 2014 We estimate generic statistical properties of a structural credit risk model by considering an ensemble of correlation matrices. This ensemble is set up by Random Matrix Theory.
Michael C Münnix +2 more
doaj +1 more source
Clustering Algorithm Reveals Dopamine‐Motor Mismatch in Cognitively Preserved Parkinson's Disease
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective To explore the relationship between dopaminergic denervation and motor impairment in two de novo Parkinson's disease (PD) cohorts. Methods n = 249 PD patients from Parkinson's Progression Markers Initiative (PPMI) and n = 84 from an external clinical cohort.
Rachele Malito +14 more
wiley +1 more source
Minimum Symbol Error Probability MIMO Design under the Per-Antenna Power Constraint
Journal of Electrical and Computer Engineering, 2012 Approximate minimum symbol error probability transceiver design of single user MIMO systems under the practical per-antenna power constraint is considered.
Enoch Lu, I.-Tai Lu
doaj +1 more source
Lower bound on the proton charge radius from electron scattering data
Physics Letters B, 2019 The proton charge-radius determinations from the electromagnetic form-factor measurements in electron-proton (ep) scattering require an extrapolation to zero momentum transfer (Q2=0) which is prone to model-dependent assumptions. We show that the data at
Franziska Hagelstein +1 more
doaj +1 more source
Nullity and Bounds to the Nullity of Dendrimer Graphs [PDF]
Al-Rafidain Journal of Computer Sciences and Mathematics, 2013 In this paper, a high zero-sum weighting is applied to evaluate the nullity of a dendrimer graph for some special graphs such as cycles, paths, complete graphs, complete bipartite graphs and star graphs.
Khidir Sharaf, Didar Ali
doaj +1 more source
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Background and Objectives Multiple sclerosis (MS) exhibits racially disparate rates of disease progression. Black people with MS (B‐PwMS) experience a more severe disease course than non‐Hispanic White people with MS (NHW‐PwMS). Here we investigated structural and functional connectivity as well as structure–function decoupling in the ...
Emilio Cipriano +11 more
wiley +1 more source
Sobolev type inequalities for compact metric graphs
Journal of Inequalities and Applications, 2018 In this paper analogues of Sobolev inequalities for compact and connected metric graphs are derived. As a consequence of these inequalities, a lower bound, commonly known as Cheeger inequality, on the first non-zero eigenvalue of the Laplace operator ...
Muhammad Usman
doaj +1 more source
Zero Lower Bound: Is it a Problem in the Euro Area? [PDF]
SSRN Electronic Journal, 2003 JEL Classification: E31, E52, E58 ...
openaire +2 more sources
FDG‐PET Associations With Disease Severity and Outcomes in NMDA‐Receptor IgG Autoimmune Encephalitis
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Background Patients with N‐methyl‐D‐aspartate (NMDA) receptor‐immunoglobulin G (IgG) autoimmune encephalitis (NMDAR‐IgG AE) demonstrate occipital lobe hypometabolism on baseline brain fluorodeoxyglucose‐positron emission tomography (bFDG‐PET).
Jonathan K. Lee +7 more
wiley +1 more source
Bond Risk Premiums at the Zero Lower Bound
SSRN Electronic Journal, 2019 This paper documents a significantly stronger relationship between the slope of the yield curve and future excess bond returns on Treasuries from 2008-2015 than before 2008. This new predictability result is not matched by the standard shadow rate model with Gaussian factor dynamics, but extending the model with regime-switching in the (physical ...
Martin M. Andreasen +2 more
openaire +4 more sources