This paper derives the statistical properties of a two-step approach to estimating multivariate rotated GARCH-BEKK (RBEKK) models.From the definition of RBEKK, the unconditional covariance matrix is estimated in the first step to rotate the observed variables in order to have the identity matrix for its sample covariance matrix.In the second step,

The global refugee community, including those forced to flee due to persecution, conflict, hr cable or violence, faces significant challenges in accessing healthcare, resulting in a higher prevalence of surgical disease.These challenges have a profound impact on morbidity and mortality rates, particularly in low- and middle-income countries where m

The characteristics of the anti-yaw damper for high-speed trains in China were studied by means of the test method, including the analysis of dynamic damping and dynamic stiffness parameters.The experimental results showed that the dynamic stiffness of the anti-yaw damper increased with the increase of the Baby Toys frequency value, while the dynam

Grain amaranths are made up of three New World species of pseudo-cereals with C4 photosynthesis from Fleece Jackets the dicotyledonous family Amaranthaceae and the genus Amaranthus.They originate in two ecoregions of the Americas, namely, the inter-Andean valleys of South America and the volcanic axis and lowlands of Mexico and Central America.Thes

Abstract Background Paradoxical sleep deprivation (PSD) associated with copyright has been shown to enhance genital reflexes (penile erection-PE and ejaculation-EJ) in Wistar rats.Since hypertension predisposes males to erectile dysfunction, the aim of the present study was to investigate the effects of PSD on genital reflexes in the spontaneously