This paper describes a simple method of calculating a heteroskedasticity and autocorrelation
consistent covariance matrix that is positive semi-definite by construction. It also …

… formation (K) of imines in water from a structurally diverse pool of aldehydes and amines.
As expected, the values of K were higher for basic amines, but the correlation between log(K) …

Hirschsprung disease (HSCR, aganglionic megacolon) represents the main genetic cause
of functional intestinal obstruction with an incidence of 1/5000 live births. This developmental …

Here we report on the antibody and memory B cell responses of a cohort of 20 volunteers
who received the Moderna (mRNA-1273) or Pfizer–BioNTech (BNT162b2) vaccine against …

We propose a nonparametric method for automatically selecting the number of autocovariances
to use in computing a heteroskedasticity and autocorrelation consistent covariance …

It is well known that a variety of prodedures are available to test a hypothesis in a model
estimated by maximum likelihood. In maximum likelihood models one of the trio of Wald, …

… We propose applying standard methods [West, KD, 1996. Asymptotic inference about
predictive ability. Econometrica 64, 1067–1084] to test whether the adjusted mean squared error …

… The IMT occurs at 340 K, and in the high-temperature rutile phase the conductivity of ∼5,000
(… Below 330 K, the conductivity is below our detection limit with conventional THz-TDS. For …

… parameters, so that k = 0; to avoid repeated qualifications to statements concerning ranks of
certain matrices, I assume k > 0 and note in Section 4 how the results specialize when k = 0. …

… Furthermore, our Western analysis of Bruch's membrane preparations suggest that … flight
MS analysis of AMD Bruch's membrane after 2D gel Western analysis, we have also found CEP …