Examining the impact of destructive acts in marketing channel relationships

<p>The economies are arranged by rows and the industries are arranged by columns. Each color represents a community detected, except that the black color indicates the isolated nodes with only self-loop. Within each community, the top 3 core economy-industry pairs are identified. The first place is with thick and solid border. The second place is with thick and dashed border. The third place is with border and texture.</p

Tiling Phosphorene

We present a scheme to categorize the structure of different layered phosphorene allotropes by mapping their nonplanar atomic structure onto a two-color 2D triangular tiling pattern. In the buckled structure of a phosphorene monolayer, we assign atoms in “top” positions to dark tiles and atoms in “bottom” positions to light tiles. Optimum sp³ bonding is maintained throughout the structure when each triangular tile is surrounded by the same number <i>N</i> of like-colored tiles, with 0 ≤ <i>N</i> ≤ 2. Our <i>ab initio</i> density functional calculations indicate that both the relative stability and electronic properties depend primarily on the structural index <i>N</i>. The proposed mapping approach may also be applied to phosphorene structures with nonhexagonal rings and 2D quasicrystals with no translational symmetry, which we predict to be nearly as stable as the hexagonal network

Structural Transition in Layered As_1–<i>x</i>P_<i>x</i> Compounds: A Computational Study

As a way to further improve the electronic properties of group V layered semiconductors, we propose to form in-layer 2D heterostructures of black phosphorus and gray arsenic. We use ab initio density functional theory to optimize the geometry, determine the electronic structure, and identify the most stable allotropes as a function of composition. Because pure black phosphorus and pure gray arsenic monolayers differ in their equilibrium structure, we predict a structural transition and a change in frontier states, including a change from a direct-gap to an indirect-gap semiconductor, with changing composition

Ranking of the top five regions in terms of largest difference between WNGF and backbone.

Ranking of the top five regions in terms of largest difference between WNGF and backbone.</p

Top 20 industries identified by the four methods for selected years.

<p>The first is the Laumas method of backward linkages, <b>w</b>. The second is the eigenvector method of backward linkages, <b>e</b>. The third is PageRank centrality, <i>PR</i>. The fourth is community coreness measure ∣d<i>Q</i>∣.</p

Two-Dimensional Phosphorus Carbide: Competition between sp² and sp³ Bonding

We propose previously unknown allotropes of phosphorus carbide (PC) in the stable shape of an atomically thin layer. Different stable geometries, which result from the competition between sp² bonding found in graphitic C and sp³ bonding found in black P, may be mapped onto 2D tiling patterns that simplify categorizing of the structures. Depending on the category, we identify 2D-PC structures that can be metallic, semimetallic with an anisotropic Dirac cone, or direct-gap semiconductors with their gap tunable by in-layer strain

EUREGIO data coverage on countries.

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Visualization and description of GF brokerage roles.

Note: The square is the broker, node color indicates group. Authors’ elaboration based on Gould and Fernandez [4].</p

Organizational network of the R&D section of a manufacturing company.

Organizational network of the R&D section of a manufacturing company.</p

The WION in 1995 and 2011.

<p>Each node represents a certain industry in a certain economy. The size of the node is proportional to its total degree (number of edges). The edges are directed and only those with strength greater than 1000 millions of US dollars are present. Finally, different colors represent different economies.</p