Abstract We report on the C K-edge x-ray absorption spectra and resonant (RXES) non-resonant (NXES) emission of ethylene, allene butadiene in gas phase. The RXES NXES show clear differences for different molecules. Overall both types are more structured ethylene allene, than butadiene. Using density functional theory–restricted open shell configuration interaction single calculations, we simula...

This study evaluates a fluid-filled, closed-cell lattice as novel route to reducing peak acceleration in impact environments. A conical structure was designed and built using fused filament fabrication. One manufactured hollow (100% air), another 70% filled with water (50% by height) third 100% water-filled. Peak evaluated performing 4.1 kg impacts at 1, 2, 3 m/s. Impacts were then simulated sh...

Much recent progress has been made theoretically and computationally towards understanding the importance of conical intersections for chemical reactions. Nonetheless, experimental characterization of conical intersections has proven extremely difficult with one striking exception: the Jahn-Teller conical intersection. This article overviews the fundamental similarity of a variety of conical in...

A recent paper in this journal proposed the conversion of conical intersections to avoided crossings by lowering the symmetry with an optical field. The article also claimed that the characters of nonadiabatic transitions caused by avoided crossings and conical intersections are qualitatively different. The present comment shows that this proposal and this claim result from an incorrect appreci...

Difflugia is a morphologically diverse genus of testate amoebae, which are common components of freshwater ecosystems. We observed a new morphotype similar to Difflugia tuberspinifera but without spine in four Xiamen reservoirs, Fujian Province, southeast China. We investigated its morphology and biometry using light and scanning electron microscopy. The linear discriminant analysis and princip...

PURPOSE Cone shape neck is regarded as non-instruction for use (IFU) in most commercial stent graft. However, in real practice, liberal application of endovascular aneurysm repair (EVAR) for outside of IFU happens. We investigate non-adherence to conical neck anatomy in terms of early aneurysmal exclusion results. MATERIALS AND METHODS From January 2010 to December 2013, 105 patients with abd...

Backside wear due to micromotion and poor conformity between the liner and its titanium alloy shell may contribute to the high rates of retroacetabular osteolysis and consequent aseptic loosening. The purpose of our study was to understand the wear process on the backside of polyethylene liners from two acetabular cup systems, whose locking mechanism is based on a press-fit cone in combination ...

It has been shown experimentally that the vibration of a tire in the region near the contact patch can be represented by a set of decaying waves, each associated with a particular crosssectional mode. Thus, a tire can be modeled as a lossy waveguide in which decaying waves propagate in the circumferential direction. It may therefore be computationally efficient to analyze tire vibration, especi...

After budding from the cell, human immunodeficiency virus (HIV) and other retrovirus particles undergo a maturation process that is required for their infectivity. During maturation, HIV particles undergo a significant internal morphological reorganization, changing from a roughly spherically symmetric immature particle with a thick protein shell to a mature particle with a thin protein shell a...