Abstract Jadeite is frequently reported in shocked meteorites, displaying a variety of textures and grain sizes that suggest formation by either solid-state transformation or crystallization from melt. Some-times, jadeite has been identified solely on the basis Raman spectra. Here we argue additional characterization needed to confidently identify distinguish it related species. Based chemical ...

We show that the equation si1 + si2 + · · ·+ sid = sid+1 + · · ·+ si2d has O N2d−2+2 −d+1 solutions for any strictly convex sequence {si}i=1 without any additional arithmetic assumptions. The proof is based on weighted incidence theory and an inductive procedure which allows us to effectively deal with higher dimensional interactions. The terminology ”combinatorial complexity” is borrowed from ...

A simple model for a dimer molecular diffusion on a crystalline surface, as a function of temperature, is presented. The dimer is formed by two particles coupled by a quadratic potential. The dimer diffusion is modeled by an overdamped Langevin equation in the presence of a two-dimensional periodic potential. Numerical simulation's results exhibit some dynamical properties observed, for example...

Background.Studying the gene pool of a crop under specific soil and climate conditions makes it possible to predict breeding value germplasm, while its subsequent inclusion in process ensures development adaptable cultivars capable implementing their productive potential large-scale agriculture. Materials methods. Stability (Si2) plasticity (bi; PUSS), Ambient Condition Index (Ij), Homeostatic ...

The ternary silicide La2Li2Si3 was synthesized from the elements in a sealed niobium tube. La2Li2Si3 was characterized by powder and single crystal X-ray diffraction: Ce2Li2Ge3 type, Cmcm, a 1⁄4 450.03(8), b 1⁄4 1880.3(4), c 1⁄4 689.6(1) pm, wR2 1⁄4 0.0178, 597 F2 values, and 26 parameters. The La2Li2Si3 structure contains two crystallographically independent silicon sites, both in slightly dis...

The US National Science Foundation (NSF) SI2-funded LAPPS Grid project has developed an open-source platform for enabling complex analyses while hiding complexities associated with underlying infrastructure, that can be accessed through a web interface, deployed on any Unix system, or run from the cloud. It provides sophisticated tool integration and history capabilities, a workflow system for ...