The precise driving force of the phase transition in indium nanowires on Si(111) has been controversial whether it is driven by a Peierls instability or by a simple energy lowering due to a periodic lattice distortion. The present van der Waals (vdW) corrected hybrid density functional calculation predicts that the low-temperature 8×2 structure whose building blocks are indium hexagons is energ...

There should be good reasons to re-publish literature, to rewrite history, and among the best is the discovery of new documentation. During recent efforts to find and collate all the surviving original documents of and pertaining to Dr Jan Ingen Housz (1730–1799), we were fortunate to discover previously unpublished letters—the ‘‘fourth’’ and ‘‘sixth’’ letters, below. They belong in the sequenc...

This paper presents 27 new records of Curculionoidea for the province of New Brunswick, Canada, including three species new to Canada, and 12 adventive species, as follows: Eusphryrus walshii LeConte, Choragus harrisii LeConte (newly recorded for Canada), Choragus zimmermanni LeConte (newly recorded for Canada) (Anthribidae); Cimberis pallipennis (Blatchley) (Nemonychidae); Nanophyes marmoratus...

Two-dimensional tungsten diselenide (WSe2) has been used as a component in atomically thin photovoltaic devices, field effect transistors, and tunneling diodes in tandem with graphene. In some applications it is necessary to achieve efficient charge transport across the interface of layered WSe2-graphene, a semiconductor to semimetal junction with a van der Waals (vdW) gap. In such cases, band ...

The self-assembly of flat organic molecules on metal surfaces is controlled, apart from the kinetic factors, by the interplay between the molecule-molecule and molecule-surface interactions. These are typically calculated using standard density functional theory within the generalized gradient approximation, which significantly underestimates nonlocal correlations, i.e. van der Waals (vdW) cont...

Defining the objectives of the AIDS vaccine for Asia network: report of the WHO-UNAIDS/Global HIV vaccine enterprise regional consultation on expanding AIDS vaccine research and development capacity in Asia Supachai Rerks-Ngarm, Punnee Pitisuttithum, Nirmal Ganguly, Linqi Zhang, Hiko Tamashiro, David A. Cooper, Mean Chhi Vun, Budiman Bela, Rossana Ditangco, Nguyen Van Kinh, Alan Bernstein, Sala...

Title: The ideal of biopsychosocial chronic care: How to make it real? A qualitative study among Dutch stakeholders Authors: Anneke van Dijk-de Vries ([email protected]) Albine Moser ([email protected]) Vera-Christina Mertens ([email protected]) Jikke van der Linden ([email protected]) Trudy van der Weijden (trudy.vanderweijden@maastr...

Van der Waals (vdW) forces act ubiquitously in condensed matter. Despite being weak on an atomic level, they substantially influence molecular and biological systems due to their long range and system-size scaling. The difficulty to isolate and measure vdW forces on a single-molecule level causes our present understanding to be strongly theory based. Here we show measurements of the attractive ...

BACKGROUND Food access interventions are promising strategies for improving dietary intake, which is associated with better health. However, studies examining the relationship between food access and intake are limited to observational designs, indicating a need for more rigorous approaches. The Veggie Van (VV) program was a cluster-randomized intervention designed to address the gap between fo...

We consider a large, convenient enough class of pencils on singular complex spaces. By introducing variation maps in homotopy, we prove in a synthetic manner a general Zariski-van Kampen type result for higher homotopy groups, which in homology is known as the “second Lefschetz theorem”.