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The genetic structure of Bryde's whale (Balaenoptera brydei) on the central and western North Pacific feeding grounds was investigated using a total of 1195 mitochondrial control region sequences and 1182 microsatellite genotypes at 17 loci in specimens collected from three longitudinal areas, 1W (135[degrees]E-165[degrees]E), 1E (165[degrees]E-180[degrees]), and 2 (180[degrees]-155[degrees]W). Genetic diversities were similar among areas and a haplotype network did not show any geographic structure, while an analysis of molecular variance found evidence of genetic structure in this species. Pairwise [F.sub.ST] and [G'.sub.ST] estimates and heterogeneity tests attributed this structure to weak but significant differentiation between areas 1W/1E and 2. A Mantel test and a high-resolution analysis of genetic diversity statistics showed a weak spatial cline of genetic differentiation. These findings could be reconciled by two possible stock structure scenarios: (1) a single population with kin-association affecting feeding ground preference and (2) two populations with feeding ground preference for either area 1W or area 2. An estimated dispersal rate between areas 1W and 2 indicates that both scenarios should be considered as a precautionary principle in stock assessments. Key words: stock structure, stock assessment, fisheries management, conservation, cetacean, Introduction Bryde's whale (Balaenoptera brydei) is a medium-sized baleen whale found year-round in the tropical and warm temperate waters of major oceans between approximately 40[degrees] N and 40[degrees]S (Kato and [...]

A coaxial counter-rotating rotor (CCRR), which has two rotors rotating in the opposite directions on the same axis, is seen as a promising technology for low-cost floating tidal current/ocean current power generation using single-point mooring, as the torques of the front and rear rotors are cancelled. In the evaluation and design of such turbines, there is a need for an accurate analysis method with a low computational load that considers the strong mutual induction between the two rotors placed close together. An individual rotor mutual induction (IRMI) method was developed in this study, aiming to significantly reduce the calculation time of conventional computational fluid dynamics (CFD), considering the mutual induction that are not considered in conventional modified blade element and momentum methods. In this method, the basic characteristics of the front and rear rotors are calculated in advance using full-model CFD. In calculations for the CCRR, in addition to these individual characteristics of each rotor, the interaction between the rotors is considered using the actuator disk model CFD calculated in advance. The condition where the torques of the front and rear rotors are cancelled is determined at the same time. This method was used to analyze models in which the front and rear rotors were approximately the same diameter and placed close together (10% of the rotor diameter). A comparison with the mixing plane model CFD revealed that they agree quite well when mutual induction is considered, although both the power and thrust are overcalculated when it is ignored. The simulation time of the IRMI would be almost counter-proportional to the numbers of TSR conditions to solve as compared with the CFD with the MP model. [ABSTRACT FROM AUTHOR]

Purpose: The purpose of this paper is to introduce the Regional Centre of Expertise (RCE) on education for sustainable development (ESD) Hyogo-Kobe, and the contribution of Kobe University as a model case. An attempt to develop and implement a new ESD programme in higher education is also reported. Design/methodology/approach: A brief description of RCE Hyogo-Kobe, which was approved in 2007, is followed by the description of the contribution of Kobe University to the RCE's starting phase to date and in the near future. The initiative of establishing the RCE as well as the design and implementation of the ESD programme developed through the collaboration of three faculties: the Faculty of Human Development, the Faculty of Letters, and the Faculty of Economics. The programme focuses on students carrying out participatory action research enabled by collaboration with regional stakeholders on ESD and SD. Findings: Interdisciplinary collaboration was found to be essential in creating an innovative education programme in higher education. Activities and projects on ESD that existed earlier played important roles in the initiative, in formation of the network, and in directing RCE activities. Originality/value: Information from the case study will be useful in the establishment and development of an RCE through the initiative of an institute of higher education.