Molecular dynamics simulations of Na(+)/H(+)-exchanged 45S5 Bioglass® models reveal that a large fraction of the hydroxyl groups introduced into the proton-exchanged, hydrated glass structure do not initially form covalent bonds with Si and P network formers but remain free and stabilised by the modifier metal cations, whereas substantial Si-OH and P-OH bonding is observed only at higher Na(+)/...

We consider the dynamics of the overdamped Josephson junction under the influence of an external quasiperiodic driving field. In dependence on parameter values either a quasiperiodic motion or a strange nochaotic attractor (SNA) can be observed. The latter corresponds to a resistive state in the current-voltage characteristics while for quasiperiodic motion a finite superconducting current exis...

Abstract Symmetry of the world trade network provides a novel perspective to understand the world-wide trading system. However, symmetry in the world trade network (WTN) has been rarely studied so far. In this paper, the authors systematically explore the symmetry in WTN. The authors construct WTN in 2005 and explore the size and structure of its automorphism group, through which the authors fi...

Time-lapse cinephotomicrography of mouse embryonic fibroblasts before and shortly after perfusion of tissue cultures reveals that the elongation of mitochondria caused by coenzyme A results from the terminal association of many shorter rods into a smaller number of long filaments. These are not permanent associations, but they reflect an exaggeration of the cohesive tendency of mitochondria, wh...

Online learning impacts students' lack of motivation to learn as daily is spent in front the gadget. That causes student saturation, so a way needed have strong learning. The study aims determine use, effectiveness, and impact ice breaking online Tauhid courses. Data collection techniques used were in-depth interviews, observations, documentation. At same time, interactive data analysis model t...

the problem of propagation of plane wave including body and surface waves propagating in a transversely isotropic half-space with a depth-wise axis of material symmetry is investigated in details. using the advantage of representation of displacement fields in terms of two complete scalar potential functions, the coupled equations of motion are uncoupled and reduced to two independent equations...

An unstable field theory is what we obtain when linearise the equations of an interacting near state. Theories this kind are adopted to model onset spontaneous symmetry breakings, fields sitting on top Mexican hat, and they start ''roll down'' bottom. At present, there exists no rigorous proof that quantum theories Lorentz-invariant (in sense Wigner's theorem). Here, show shouldn't be. In fact,...