University of Memphis

About: University of Memphis is a education organization based out in Memphis, Tennessee, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 7710 authors who have published 20082 publications receiving 611618 citations. The organization is also known as: U of M.

Dynamics of domain growth in self-assembled fluid vesicles.

Abstract: The dynamics of phase separation in multicomponent bilayer fluid vesicles is investigated by means of large-scale dissipative particle dynamics. The model explicitly accounts for solvent particles, thereby allowing for the very first numerical investigation of the effects of hydrodynamics and area-to-volume constraints. We observed regimes corresponding to coalescence of flat patches, budding and vesiculation, and coalescence of caps. We point out that the area-to-volume constraint has a strong influence on crossovers between these regimes.

International Evidence on Institutional Trading Behavior and Price Impact

Abstract: This study characterizes institutional trading in international stocks from 37 countries during 1997 to 1998 and 2001. We find that the underlying market condition is a major determinant of the price impact and, more importantly, of the asymmetry between price impacts of institutional buy and sell orders. In bullish markets, institutional purchases have a bigger price impact than sells; however, in the bearish markets, sells have a higher price impact. This differs from previous findings on price impact asymmetry. Our study further suggests that price impact varies depending on order characteristics, firm-specific factors, and cross-country differences. CROSS-BORDER INVESTMENT has increased dramatically during the past 20 years and has become a crucial element in modern portfolios of investors worldwide. While individual investors typically diversify their portfolios through mutual funds and American Depository Receipts, large institutional investors such as mutual funds and pension funds often transact directly in international markets for their portfolio needs. Investing directly in international stocks involves unique risks, challenges, and costs.1 Whereas the tradeoffs between these unique risks and returns from international investments have been widely studied, the transaction costs, particularly price impact costs, can potentially be another critical component of a successful international portfolio strategy. This is especially important for active institutional investors who frequently transact in foreign stocks. Understanding the determinants of price impact can be helpful in designing trading strategies that lower transaction costs and maximize net returns from an institutional portfolio. Despite the significant impact of transaction costs on portfolio performance and successful international diversification, only a few studies have examined the trading costs across different countries. The notable papers are Perold

The influence of sex, age, and handedness on corpus callosum morphology: A meta-analysis

Abstract: Initial observations linking variation in the human corpus callosum (CC) to handedness and sex have inspired a number of investigations of individual differences in CC size and morphology. In this quantitative review, we summarize the findings from these studies and assess the magnitude of sex, age, and handedness-related variations in the size of the CC. Meta-analysis of the 43 studies indicated that although absolute CC and splenial area are larger in men than in women, CC area adjusted for brain size was larger in women. Left-handers possess slightly larger CCs than do right-handers, and CC area decreases slightly with age. The implications of these findings for theories relating cerebral laterality to sex, age, and handedness are discussed.