University of Missouri

About: University of Missouri is a education organization based out in Columbia, Missouri, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 41427 authors who have published 83598 publications receiving 2911437 citations. The organization is also known as: Mizzou & Missouri-Columbia.

A hemolysis-hemagglutination assay for characterizing constitutive innate humoral immunity in wild and domestic birds.

Abstract: Methods to assess immunocompetence requiring only a single sample are useful in comparative studies where practical considerations prevent holding or recapturing individuals. The assay for natural antibody-mediated complement activation and red blood cell agglutination described here, requiring ∼100 μl of blood, is highly repeatable. The effects of complement deactivation, 2-mercaptoethanol (2-ME), age, and lipopolysaccharide (LPS)-induced sickness response were examined to validate comparisons among diverse avian species. Complement deactivation by heating significantly reduces lysis and treatment with 2-ME reduces both lysis and agglutination. Lysis and agglutination both increase with age in chickens; LPS treatment does not influence these variables in 11-week-old chickens. In a comparison of 11 species, both lysis (0.0–5.3 titers) and agglutination (1.8–8.0 titers) vary significantly among species. Accordingly, this assay can be used to compare constitutive innate humoral immunity among species and with respect to age, sex, and experimental treatments within populations.

The Scale of Ethnocultural Empathy: Development, Validation, and Reliability

Abstract: Summary and Overall Discussion The purpose of this study was to develop a scale to quantita-tively and effectively measure the construct of ethnocultural em-pathy. On the basis of a review of the literature, ethnoculturalempathy as a construct was derived from definitions of generalempathy, multiculturalism, and cultural empathy. Our effort tocreate a three-factor scale was partially supported by the results ofthe factor analysis. Although there are parallels between the in-tended definition of the three factors and the final results, the factoranalysis revealed the presence of a fourth factor. The factorscontributed to the amount of variance accounted for by the scale inthe following order, from strongest to weakest: Empathic Feelingand Expression, Empathic Perspective Taking, Acceptance of Cul-tural Differences, and Empathic Awareness. The four-factor solu-tion suggests that there are four distinct components underlyingscores on the SEE.The four factors of the SEE closely replicate the theoreticalconstructs of empathy found in the literature and bring new un-derstanding to the construct of ethnocultural empathy. Duan andHill (1996) suggested that the concept of general empathy consistsof two components: empathic emotions and intellectual empathy.The most comprehensive model of cross-cultural empathy, dis-cussed by Ridley and Lingle (1996), includes communicativeempathy in addition to the similar emotional and intellectualaspects. The four factors revealed in the present study not onlysupport the existence of the emotional, intellectual, and commu-nicative aspects of ethnocultural empathy but also suggested thatthe components of ethnocultural empathy may be more compli-cated than has been conceptualized in the existing literature (i.e.,there may be more than three components). For example, theintellectual aspect of ethnocultural empathy may encompass one’sperspective taking and awareness toward racial and ethnicdifferences.Table 5Univariate Analyses of Variance on Racial Differences in SEE Subscale Scores

Smallest singular value of a random rectangular matrix

Abstract: We prove an optimal estimate of the smallest singular value of a random sub- Gaussian matrix, valid for all dimensions. For an Nn matrix A with inde- pendent and identically distributed sub-Gaussian entries, the smallest singular value of A is at least of the order p Np n � 1 with high probability. A sharp

Triangulating Principal Effectiveness How Perspectives of Parents, Teachers, and Assistant Principals Identify the Central Importance of Managerial Skills

Abstract: While the importance of effective principals is undisputed, few studies have identified specific skills that principals need to promote school success. This study draws on unique data combining survey responses from principals, assistant principals, teachers, and parents with rich administrative data to determine which principal skills correlate most highly with school outcomes. Factor analysis of a 42-item task inventory distinguishes five skill categories, yet only one of them, the principals’ Organization Management skills, consistently predicts student achievement growth and other success measures. Analysis of evaluations of principals by assistant principals supports this central result. The analysis argues for a broad view of principal leadership that includes organizational management skills as a key complement to the work of supporting curriculum and instruction.