Reviewing its self image and redefining its role as a regional power : contemporary Japan and international population movement

What sort of change in policy may be possible if a state reviewed its structural conditions and the significance of its own power with regard to other actors in international relations? This paper asks this question with regard to contemporary Japan’s policy towards an issue arising from the arrival of migrants in post-Cold War years, in particular whether to provide safety to migrants within the country. Japan used to be ‘a country without migration’ until the 1970s, but from the 1980s onwards has been in transition to be a key destination for international population movement (IPM). This paper surveys the literature on Japan’s international relations, examines theories of IPM, and describes the history of modern Japan focusing particular attention on its experiences of international migration. If Japan did not provide a safe environment for migrants, that would be questionable as being a differential form of treatment. What obstructs the provision of safety is a world view informed by an atomistic view of international relations and an understanding of history which is only focused on a limited time period. In contrast, what can contribute to reducing such a barrier will be a combination of natural law thinking, a relational view of international relations, an understanding of history with a time frame over several decades, and a recognition that current IPM is a reflection of Japan’s economic power in the neighbouring regio

Unexpectedly fast transfer of positron-emittable artificial substrate into N-terminus of peptide/protein mediated by wild-type L/F-tRNA-protein transferase

This article demonstrates the fastest enzymatic introduction of a positron emission tomography (PET) probe into acceptor peptides/proteins. It is site-specifically introduced at the basic N-terminus of the acceptors by using L/F-transferase in combination with aminoacyl-tRNA synthetase, namely the NEXT-A/PET reaction. Estimated from kinetic analysis, the transfer efficiency of O-(2-fluoromethyl)-L-tyrosine as an artificial amino acid PET probe mediated by the wild-type transferase is almost as good as that of the natural substrate, phenylalanine

Classification of non-symplectic automorphisms on K3 surfaces which act trivially on the N\'{e}ron-Severi lattice

We treat non-symplectic automorphisms on $K3$ surfaces which act trivially on the N\'{e}ron-Severi lattice. In this paper, we classify non-symplectic automorphisms of prime-power order, especially 2-power order on $K3$ surfaces, i.e., we describe their fixed locus.Comment: 15 page