Results 221 to 230 of about 83,782 (311)
Revisiting EWMA in High‐Frequency‐Based Portfolio Optimization: A Comparative Assessment
ABSTRACT This paper compares the statistical and economic performance of state‐of‐the‐art high‐frequency (HF) based multivariate volatility models with a simpler, widely used alternative, the Exponentially Weighted Moving Average (EWMA) filter. Using over two decades of 100 U.S.
Laura Capera Romero, Anne Opschoor
wiley +1 more source
One-month dual antiplatelet therapy after biodegradable-polymer everolimus-eluting stent implantation in diabetic patients at high bleeding risk. [PDF]
Gramss L +11 more
europepmc +1 more source
ABSTRACT We present four novel tests of equal predictive accuracy and encompassing á Pitarakis (2023, 2025) for factor‐augmented regressions. Factors are estimated using cross‐section averages (CAs) of grouped series and our theoretical findings are empirically relevant: asymptotic normality, robustness to an overspecification of the number of factors,
Alessandro Morico, Ovidijus Stauskas
wiley +1 more source
Reading between the troponin lines: acute myocarditis amid septic shock. [PDF]
Chen TM, Hothi SS, Tan TC, Lau C.
europepmc +1 more source
Colourings of Uniform Group Divisible Designs and Maximum Packings
ABSTRACT A weak c $c$‐colouring of a design is an assignment of colours to its points from a set of c $c$ available colours, such that there are no monochromatic blocks. A colouring of a design is block‐equitable, if for each block, the number of points coloured with any available pair of colours differ by at most one.
Andrea C. Burgess +6 more
wiley +1 more source
Giant mucinous ovarian cystadenoma mimicking malignancy: a case report and review of diagnostic challenges. [PDF]
Gökçe K +3 more
europepmc +1 more source
Abstract Background People with neurodevelopmental and mental health conditions have been demonstrated to have elevated rates of sensory processing (SP) difficulties in research and practice but the temporal order of this relationship is unclear. Methods This study sought to investigate whether SP difficulties in infancy predicted mental health at 5 ...
Emma Butler +2 more
wiley +1 more source
Case Report: Hereditary Angioedema Accompanied by Chronic Spontaneous Urticaria. [PDF]
Wang H, Shen Y.
europepmc +1 more source
Abstract Background Individuals with a parental history of anxiety disorders are at risk of developing an anxiety disorder. Prior studies have focused on the transmission of specific anxiety disorders across generations (i.e., disorder‐specific transmission), often overlooking the possibility that a general tendency to develop various forms of anxiety ...
Hyunsik Kim +5 more
wiley +1 more source

