The size of absolute band gaps in two-dimensional photonic crystals is often limited by band degeneracies at the lattice symmetry points. By reducing the lattice symmetry, these degeneracies can be lifted to increase the size of existing photonic band gaps, or to create new gaps where none existed for the more symmetric structure. Specifically, symmetry reduction by the addition of different di...

Nowadays, in China, there exist obvious regional economic differences. However, narrowing such differences involves solving the problem of regional innovation differences. Furthermore, regional innovation capability disparity is an important factor in explaining the imbalances between regional economic development and international economic development. Hence, the study first adopts the Theil i...

In this paper we argue that the various discussions of the regional location behaviour of the multinational firm by the different fields of analysis which deal with these issues are all rather at a tangent to each other. Only economic geography and regional economics discuss firm-location behaviour at the subnational regional level, whereas international trade theory and traditional internation...

the world of law has been dominated by waves of codification or re-codification and by currents of harmonization and unification. innumerable institutions, not only in europe but around the globe including in iran, try to bring legal systems together, and to suggest uniform laws. such attempts necessarily rely on comparative law as the first methodological tool. the european experience is an il...

An increasing number of healthcare providers author medical blogs (bloggers) to educate the public and fellow physicians. Traditionally, many bloggers have assumed that readers are most interested in information presented at prestigious and popular scientific meetings. As a result, the readers and bloggers often ignore blogs of local scientific meetings. We hypothesize that blog readers will ut...

the globalization and urban development concepts are closely linked to each other. however, all cities around the world are not affected same by globalization, each one has its spatial and reciprocal international-local action. the international changes of economy, culture, and politics have huge effects on restructuring of cities around the world. the present study as a descriptive-analytical ...

as putin regained the power in russia, the situation gave a second chance to this country to avoid both the west and the benefits of convergence with its foreign policy and regional and trans-regional equations. this can take advantages from other side. approach of russia to divergence and independence with the west will increase level of russian hegemony on international arena. the main questi...