We show how to use the Hopf algebra structure of quantum field theory to derive nonperturbative results for the short-distance singular sector of a renormalizable quantum field theory in a simple but generic example. We discuss renormalized Green functions GR(α,L) in such circumstances which depend on a single scale L = ln q /μ and start from an expansion in the scale GR(α,L) = 1 + ∑ k γk(α)L ....

Most methods used in knowledge organization systems (KOS) organize knowledge in form of concepts and the relations between them, though the level of differentiating relations varies. Major knowledge representation methods make some of the relations explicit, but they use only a small number of paradigmatic semantic relations so far. This approach is somewhat contrary to the detailed and highly-...

Spontaneous emission rates in a dielectric structure are position dependent and proportional to the local optical density of states. The latter can be calculated when the Green function is known. In our scalar formalism, we model dielectric slabs as infinitely thin planes and use the T-matrix formalism of multiple-scattering theory to find an exact analytical expression for the Green function o...

We show how to use the Hopf algebra structure of quantum field theory to derive nonperturbative results for the short-distance singular sector of a renormalizable quantum field theory in a simple but generic example. We discuss renormalized Green functions GR(α,L) in such circumstances which depend on a single scale L = ln q /μ and start from an expansion in the scale GR(α,L) = 1 + ∑ k γk(α)L ....

This study aims to designate the appropriate green supply chain management (GSCM) strategies for electronic industries to control their business functions and activities effectively. Because many previous works mixed up green strategies, regulations, and activities, we propose an integrated network model from the aspect of product development so that four business functions, i.e., design, purch...

Plants that lack chlorophyll are rare and typically restricted to holoparasites that obtain their carbon, water and mineral resources from a host plant. Although not parasites in the traditional sense, albino foliage, such as the sprouts that sometimes develop from redwood tree trunks, are comparable in function. They occur sporadically, and can reach the size of shrubs and in rare cases, trees...

In the growing and turbulent market of the current world both in national and in international relations, the need for reviewing and assessment of the resiliency of suppliers as one of the new concepts in supply chain management has been prioritized. In addition, globalization, increasing the regulations of governmental and non-governmental organizations, customers’ request and pressure regardi...

The green fluorescent fusion protein and its isoforms are extensively used to monitor gene expression, protein localisation and their dynamics in relations to fundamental cellular processes. However, it has not yet been effectively applied to Aplysia neurons that serve as a powerful model to study the mechanisms underlying neuroplasticity. We report here the development of a procedure combining...

Recently, attempts have been done to formalize Semantic Matchmaking, the process of finding potential matches between demands and supplies based on their logical relations with reference to a common ontology, in Description Logics (DLs). We extend the formalization to Packages-based Description Logics (P-DLs), modular extensions of DLs, in order to perform the matchmaking operation in contexts ...

This article explores the experiences of unmarried mothers who kept and tried to raise their children between World War One and the end of the twentieth century. It argues that there has not been a simple progression from their experiencing social stigma and ostracism to more enlightened attitudes since the 1970s. Rather there is a great deal that has hitherto been unknown about what the eviden...