Although heightened throughout childhood and adolescence, sweet taste preference declines during late adolescence (Desor et al., 1977; Desor and Beauchamp, 1987). Despite such age-related changes in sweet preferences, individual variation, due to both genetics (Bartoshuk, 2000) and experience (Beauchamp and Moran, 1982, 1984), exists at both ends of the age spectrum (Desor et al., 1977; Beaucha...

Contrary to classical population genetics theory, experiments demonstrate that fluctuating selection can protect a haploid polymorphism in the absence of frequency dependent effects on fitness. Using forward simulations with the Moran model, we confirm our analytical results showing that a fluctuating selection regime, with a mean selection coefficient of zero, promotes polymorphism. We find th...

An Argument for Ecological Research and Intervention in Health Communication Meghan Bridgid Moran, Lauren B. Frank, Nan Zhao, Carmen Gonzalez, Prawit Thainiyom, Sheila T. Murphy & Sandra J. Ball-Rokeach To cite this article: Meghan Bridgid Moran, Lauren B. Frank, Nan Zhao, Carmen Gonzalez, Prawit Thainiyom, Sheila T. Murphy & Sandra J. Ball-Rokeach (2016) An Argument for Ecological Research and...

Several groups have recently modeled evolutionary transitions from an ancestral allele to a beneficial allele separated by one or more intervening mutants. The beneficial allele can become fixed if a succession of intermediate mutants are fixed or alternatively if successive mutants arise while the previous intermediate mutant is still segregating. This latter process has been termed stochastic...

* This paper was inspired by a conversation Berman had with his great uncle Rafuel Grinspun, shortly after the latter migrated from the Soviet Union. We appreciate the helpful comments of Lawrence Katz, Kevin Lang, Shlomo Yitzhaki and seminar participants at Boston University, the Hebrew University, Maryland, Yale, Michigan, MIT and an NBER Labor Studies session. We thank the Maurice Falk Insti...

This study aimed to find the spatiotemporal evolution rules of leisure consumption urban residents in China. Based on measurement marginal propensity for over past 20 years, a mixed regression and disposable income showed that, growth rates education, culture, entertainment, transportation, communication, healthcare large, these trends remain obvious. The coefficient variation shows transportat...

soil salinity is a limiting factor for plant growth and a serious cause of land degradation. field sampling and statistical analysis for estimating soil salinity is expensive and time consuming. estimating soil salinity by spatial statistical models and geographic information system (gis) is recommended, because it saves labor and time. this study was conducted to evaluate the performance of sp...