YBCO samples were prepared using different types of precursor powders: quenched, or YBa 2 Cu 3 0 7 x and Y 2 BaCu0 5 commercial powders, with and without Pt addition. Two stoichiometries, corresponding to 0 and 40% molar excess of the Y 2 BaCu05 phase, were adopted. The behavior of the Y 2 BaCu0 5 phase through thermal treatments, typical of melt processes, was observed by quenching the samples at various stages. YBa 2 Cu 3 0 7 _ x grain growth kinetics was enhanced and liquid phase losses were limited by optimizing the morphology of the Y 2 BaCu0 5 phase in the partially melted state, with the simultaneous presence of round particles =£ 1 /mm and needle-like particles with very high aspect ratio. The optimized processing conditions were adopted, together with a seeding technique, to grow YBCO samples. At 77 K, a magnetic levitation force of 2.5 kg was measured for a sample with 18 mm diameter, and magnetization critical current densities over 10 4 A/cm 2 were reached at 1 T.
M en have an important role as allies in reducing discrimination against women. Following the Social Identity Model of Collective Action (SIMCA), we examined whether men's identification with women would predict their allied collective action, alongside moral convictions, efficacy, and anger. We also examined whether identification with their own ingroup would decrease their willingness to improve women's situation. We tested the SIMCA, extended to consider ingroup identification among men, in Japan (N = 103) and the Philippines (N = 131). Consistent with the SIMCA, moral convictions and group efficacy predicted men's willingness to engage in collective action to fight discrimination against women. However, anger was not significant, and identification with the advantaged and disadvantaged groups played different roles in the two countries. We discuss the possible role of norms and legitimacy in society in explaining the pattern of results.
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