This study was undertaken to identify and characterize amino acid substitutions in gyrA and parC related with quinolone resistance of 27 nalidixic acid-resistant (NaR) Salmonella isolates collected in poultry slaughterhouses in Korea. A total of 51 Salmonella isolates were detected from 44.8% (47/105) of the total samples from 15 poultry slaughterhouses examined, among which 27 (52.9%) NaR isol...

PEP mutase catalyzes the conversion of phosphoenolpyruvate (PEP) to phosphonopyruvate in biosynthetic pathways leading to phosphonate secondary metabolites. A recent X-ray structure [Huang, K., Li, Z., Jia, Y., Dunaway-Mariano, D., and Herzberg, O. (1999) Structure (in press)] of the Mytilus edulis enzyme complexed with the Mg(II) cofactor and oxalate inhibitor reveals an alpha/beta-barrel back...

I argue that it is microeconomics that needs foundations, not macroeconomics. Preferences need to be built on biology, and, in particular, on neuroscience. In contrast, macroeconomics could benefit from rationalizations of aggregate economic phenomena by non-equilibrium statistical physics. Special issue Reconstructing Macroeconomics JEL: B22, B41, C82, D87

Neuroeconomics and Evolutionary Psychology contribution to the economic mainstream along last decade, not only in realm of theory but analysis risk aversion financial decisions, is really noteworthy. But few things has been said about how these new disciplines are complementary or something add what economists thought before us. The comparison between history ideas neuroeconomics evolutionary p...

Does poverty have psychological consequences? Beginning with Easterlin (1974), a growing literature has investigated the association between income levels and psychological outcomes. However, this literature remains focused on happiness and life satisfaction, while little evidence exists about the link between income and other psychological outcomes. Using World Value Survey data from 114,378 r...

We present a descriptive model of choice with normative foundations based on how the brain is thought to represent value. An individual’s behavior is fully described by two primitives: an individual’s expectation and one free parameter we call “predisposition”. The model captures the same apparent preference phenomena illustrated by Prospect Theory but unlike Prospect Theory accounts for indivi...

Early Life Adversity and Children’s Competence Development: Evidence from the Mannheim Study of Children at Risk This paper investigates the role of early life adversity and home resources in terms of competence formation and school achievement based on data from an epidemiological cohort study following 364 children from birth to adolescence. Results indicate that organic and psychosocial risk...

We study the solitary wave solutions of a non-integrable generalized KdV equation proposed by Fokas [A. S. Fokas, Physica D87, 145 (1995)], aiming to describe unidirectional waves in shallow water with greater accuracy than standard equation. This includes higher-order terms small parameters α and β, representing respectively height inverse width compared thickness sheet. The we find have small...