Let B be a generator of positivity preserving (shortly, positive) semi-group in L 2 on a space with-nite measure. It is supposed that the semigroup e ?tB ; t > 0 acts continuously from L 2 to L 1. For a measurable function V 0 an estimate for the number of negative eigenvalues of the operator B ? V is obtained. The well-known CLR-estimate for the number of negative eigenvalues of the Schrr odin...

OBJECTIVE To estimate intersonographer and intrasonographer variance components of fetal nuchal translucency (NT) thickness measurement using the traditional manual approach and a new semi-automated system. METHODS A semi-automated method was developed for measurement of the NT. In this method, the operator places an adjustable box over the relevant area at the back of the fetal neck. The sys...

A semi-autonomously controlled fluid-powered legged search and rescue robot is proposed as a solution to the everincreasing demand for more versatile rescue robot technology. The success of such a robot is dependent on the existence of a user interface that optimizes the balance between user and machine decisions and provides the operator with the appropriate amount of information to soundly ma...

Let T be a bounded operator on a complex Banach space X. If V is an open subset of the complex plane, we give a condition sufficient for the mapping f(z) 7→ (T − z)f(z) to have closed range in the Fréchet space H(V, X) of analytic X-valued functions on V . Moreover, we show that there is a largest open set U for which the map f(z) 7→ (T − z)f(z) has closed range in H(V, X) for all V ⊆ U . Final...