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.

Liquid-core optical ring-resonator sensors

Abstract: We have demonstrated a novel sensor architecture based on a liquid-core optical ring-resonator (LCORR) in which a fused silica capillary is utilized to carry the aqueous sample and to act as the ring resonator. The wall thickness of the LCORR is controlled to a few micrometers to expose the whispering gallery mode to the aqueous core. Optical characterization with a water-ethanol mixture shows that the spectral sensitivity of the LCORR sensor is approximately 2.6 nm per refractive index unit. A model based on Mie theory is established to explain the experimental results. The LCORR takes advantage of the high sensitivity, small footprint, and low sample consumption with the ring resonator, as well as the efficient fluidic sample delivery with the capillary, and will open an avenue to future multiplexed sensor array development.

Auditor Industry Specialization and Market Segmentation: Evidence from Hong Kong

Abstract: Audit fees of Big 6 and non‐Big 6 accounting firms are examined for 348 publicly listed Hong Kong companies. Using more recent data than prior studies, we find evidence of Big 6 premiums for both general brand name and for industry specialization. In addition, we find that the large local firm Kwan Wong Tan & Fong, which is the market leader in the property sector, has significantly lower fees than both Big 6 and other non‐Big 6 auditors in that industry. Specialization thus leads to different results for Big 6 and non‐Big 6 firms and suggests a market segment not previously identified: non‐Big 6 specialization, which leads to production economies and the capture of market share through lower fees for a clientele seeking low‐priced audits. These results also suggest that prior studies do not recognize sufficiently that Big 6 brand‐name reputation is a necessary foundation on which to achieve higher priced quality‐differentiated audits based on industry specialization.

Interferon-like sequence of ovine trophoblast protein secreted by embryonic trophectoderm

Abstract: In most species the length of a pregnancy exceeds that of the luteal phase of the ovarian cycle. The conceptus within the uterus, therefore, is believed to produce a substance or substances which directly or indirectly prolong the lifespan of the corpus luteum and prevent a return to ovarian cyclicity. This phenomenon is known as maternal recognition of pregnancy1. The active substance implicated in signalling maternal recognition of pregnancy in the sheep is an embryonic secretory protein, known as ovine trophoblast protein-1 (oTP-1) (refs 2–4), which is targeted in a paracrine manner to the uterine epithelium of the mother5. We report here the primary amino-acid sequence of oTP-1 as inferred from a cloned complementary DNA and demonstrate that the protein is most probably an interferon-alpha.

Mediators of the Gender Difference in Rumination

Abstract: Rumination is engaging in a passive focus on one's symptoms of distress and on the possible causes and consequences of these symptoms. Women are more likely than men to engage in rumination. This study examined whether gender differences in the following beliefs would mediate the gender difference in rumination: the controllability of emotions, the appropriateness of rumination as a coping strategy, responsibility for the emotional tone of relationships, and mastery over negative events. The sample was 740 community-dwelling adults between 25 and 75 years of age, who completed a survey by mail. The combination of beliefs about control of emotions, responsibility for the emotional tone of relationships, and mastery over negative events fully mediated the gender difference in rumination. Alternative hypotheses that the gender difference in rumination was due to gender differences in distress, emotional expressivity, and the tendency to give socially desirable answers were not supported.

Motivations for sex and risky sexual behavior among adolescents and young adults: a functional perspective.

Abstract: The implications of a functionalist perspective for understanding sexual risk taking are explored. Key motivational dimensions thought to underlie human behavior (viz., approach vs. avoidance, autonomy vs. relatedness) were used to identify 4 broad domains of sexual motivations and to develop a measure of specific motives within each of these domains. Data from both college student and community samples are used to demonstrate the psychometric adequacy of these scales and to show that having sex for different reasons predicts distinctive patterns of sexual risk taking both cross-sectionally and longitudinally: that selection into specific types of sexual relationships partially mediates these effects; and that these needs may be differentially expressed, or even suppressed, depending on relationship context. Results provide strong support for the functionalist perspective on behavior and indicate that an adequate understanding of sexual risk-taking behavior must take into account the various needs and goals that such behavior can serve.