In this paper we consider a problem of distance selection in the arrangement of hyperplanes induced by n given points. Given a set of n points in d-dimensional space and a number k, 1 k (n d ) , determine the hyperplane that is spanned by d points and at distance ranked by k from the origin. For the planar case we present an O(n log2 n) runtime algorithm using parametric search partly different...

Any which way but loose back-to-back arrangement of kinetochores is not needed for correct alignment on the mitotic spindle, as shown by Hilary Dewar, Tomoyuki Tanaka (University of Dundee, UK), and colleagues. Sister chromatids are glued together by cohesin such that their kinetochores face opposing poles. This arrangement might thus prevent both chromatids from attaching to spindle microtubul...

Long-term memory (LTM) delivers important control signals for attentional selection. LTM expectations have an important role in guiding the task-driven sequence of covert attention and gaze shifts, especially in well-practiced multistep sensorimotor actions. What happens when LTM expectations are disconfirmed? Does a sensory-based visual-search mode of attentional selection replace the LTM-base...

The connection between noncentrosymmetric materials’ structure, electronic structure, and bulk photovoltaic performance remains not well understood. In particular, it is still unclear which photovoltaic (PV) mechanisms are relevant for the recently demonstrated visible-light ferroelectric photovoltaic (K,Ba)(Ni,Nb)O3−δ . In this paper, we study the bulk photovoltaic effect (BPVE) of (K,Ba)(Ni,N...

Complete 'anatomic' repair of transposition of the great arteries has now been achieved. The ideal timing of this surgery is during neonatal cardiovascular transition, when the fetal elevation of pulmonary vascular resistance is still present.

A new approach stemming from the adiabatic-connection (AC) formalism is proposed to derive parameter-free double-hybrid (DH) exchange-correlation functionals. It is based on a quadratic form that models the integrand of the coupling parameter, whose components are chosen to satisfy several well-known limiting conditions. Its integration leads to DHs containing a single parameter controlling the...

This preliminary report presents recent experience with the Senning operation for transposition of the great arteries. Reasons are given why the traditional Mustard procedure was abandoned in favour of the Senning operation. Technical details are presented and the advantages and disadvantages of the procedure are discussed.