South Koreans' attitudes toward foreigners, minorities and multiculturalism

노트 : Paper prepared for presentation at the annual meeting of the American Sociological Association, Boston, MA from August 1-4, 2008

Structural and Correlation Effects in the Itinerant Insulating Antiferromagnetic Perovskite NaOsO3

The orthorhombic perovskite NaOsO3 undergoes a continuous metal-insulator transition (MIT), accompanied by antiferromagnetic (AFM) order at T_N=410 K, suggested to be an example of the rare Slater (itinerant) MIT. We study this system using ab initio and related methods, focusing on the origin and nature of magnetic ordering and the MIT. The rotation and tilting of OsO6 octahedra in the GdFeO3 structure result in moderate narrowing the band width of the t_{2g} manifold, but sufficient to induce flattening of bands and AFM order within the local spin density approximation (LSDA), where it remains metallic but with a deep pseudogap. Including on-site Coulomb repulsion U, at U_c ~2 eV a MIT occurs only in the AFM state. Effects of spin-orbit coupling (SOC) on the band structure seem minor as expected for a half-filled $t_{2g}^{3}$ shell, but SOC doubles the critical value U_c necessary to open a gap and also leads to large magnetocrystalline energy differences in spite of normal orbital moments no greater than 0.1$\mu_B$. Our results are consistent with a Slater MIT driven by magnetic order, induced by a combination of structurally-induced band narrowing and moderate Coulomb repulsion, with SOC necessary for a full picture. Strong p-d hybridization reduces the moment, and when bootstrapped by the reduced Hund's rule coupling (proportional to the moment) gives a calculated moment of ~1 $\mu_B$, consistent with the observed moment and only a third of the formal $d^3$ value. We raise and discuss one important question: since this AFM ordering is at q=0 (in the 20 atom cell) where nesting is a moot issue, what is the microscopic driving force for ordering and the accompanying MIT?Comment: 9 page

Blending Research And Teamwork To Enhance Undergraduate Education: Results From National Survey Of Student Engagement And Business ETS Major Field Test

This study is a continuation of previous work by the authors.  Most of the NSSE (National Survey of Student Engagement) scales are positively related to higher Business ETS MFT (Major Field Test) scores.  The NSSE scales are Active and Collaborative Learning, Enriching Educational Experiences and Integration of Diversity into Coursework.   In particular, the NSSE scale of Integration of Diversity into Coursework appears to be significant.  Students seem to earn higher scores on the ETS MFT when diversity is integrated into courses.  Two of the scales, however, are negatively related to GPA:  Level of Academic Challenge and Integration of Diversity into Coursework.   The items we added to the survey included a leadership position held on campus and, a NSSE item, the number of courses that expect students to put together ideas or concepts from different courses when completing assignments or during class discussions, were both significant.  The positive partial correlation indicated a .223 and .181 (at the 5% significance level), respectively, for these two items.   Other items of interest will be discussed in the paper

The Impact Of Leadership Roles And Internships On Undergraduate Business Major Field Test (MFT) Scores

It is often the goal or mission of higher education to prepare graduates for leadership roles in organizations and the community.  Even if we are to assume that leadership skills can be developed, determining the appropriate ways to teach and measure leadership is often debated.  Our study used quantitative data from the ETS Business Major Field Test (MFT) as an external measure and compared those results to specific items on a survey to determine if students who had leadership roles on campus or internships also scored higher on the ETS MFT test

Examining The Relationship Between The National Survey Of Student Engagement And The ETS Business Major Field Test

In this study, the authors examined the relationship between the various NSSE (National Survey of Student Engagement) survey items or classifications and the ETS Major Field Test (MFT) in Business.  The sample consisted of 87 business students at a small liberal arts college.  Many of the survey items were linked positively to the ETS Major Field Test.  The results suggest that MFT is a better measurement than GPA for NSSE.  As a noteworthy finding from the analysis, we need to mention that MFT is a better measurement of student engagement described in the NSSE rather than GPA. Therefore, it seems that the MFT is a valid external measurement of student engagement. In particular, the MFT shows a relative strength in assessing “Integration of Diversity into Coursework.&rdquo