We present a general formalism to model and calculate linear nonlinear optical processes in composite systems, based on graphical representation of light-matter interactions by loop diagrams associated with Feynman rules. Through this formalism, we recover the usual second-order response simple system drawing four times fewer than doubled-sided ones. For introduce coupling Hamiltonians between ...

background and purpose: emergency physicians play an important role in the immediate diagnosis of bioterrorism activities. the present study was conducted with the purpose of comparing the effectiveness of virtual learning and classroom learning in approach to bioterrorism and chemical terrorism for emergency physician s. methods: this was a semi-empirical study, which was conducted via testing...

BACKGROUND Fasciola hepatica is the causative agent of fascioliasis, a disease affecting grazing animals, causing economic losses in global agriculture and currently being an important human zoonosis. Overuse of chemotherapeutics against fascioliasis has increased the populations of drug resistant parasites. F. hepatica cathepsin L3 is a protease that plays important roles during the life cycle...

In the network function virtualization environment, dynamic changes in traffic will lead to of service chain resource demand, which entails timely adjustment configuration. At present, most researches solve this problem through virtual migration and link rerouting, there exist some problems such as long interruption time, excessive operation cost high penalty. This paper proposes a method confi...

This article aims to redefine the concept of Thirdspace and make a trilateral relationship between the three concepts of real space, virtual space and the user. To do so, not only the concept of Thirdspace has to be redefined, but also a new understanding of virtual space as a relatively independent space is required. This three-sided relation requires a new understanding of the relationship be...