The size of the nondominated set of a vector set is greatly dependent on the size of the original vector set N and the dimension of the vector M . Theoretical analysis shows that when M = O(log N) the original set has big nondominated set which may be the original set itself, and in the case M = O(log N), a classical algorithm (KLP) for finding nondominated set has complexity of KLP higher than...

I n a recent issue of PNAS, Maia and McClelland (1) report findings that raise questions regarding the interpretation of a highly influential neuropsychological study of decisionmaking behavior (2). That study has been interpreted widely as evidence that decision-making behavior is governed by emotional factors outside of awareness. The impact of Maia and McClelland’s study is not so much to ch...

My romance with RNA began in Paris at the age of 21. After four undergraduate years at Caltech and before going to graduate school at MIT, I somehow managed to spend a miraculous year in the city of light, where I worked in the laboratory of Marianne Grunberg-Manago. She had done a post-doc with Severa Ochoa at NYU, where she discovered the enzyme polynucleotide phosphorylase (PNPase). This was...

This paper explores the contingent role that social ties play in the emergence of status hierarchies. We argue that, while status is formed based on actors’ perception and understanding of social cues, network structure and position influence this process by influencing the attention and legitimacy given to the focal actor in accordance with social cues that signal an actor’s identity. Using a ...

This study aimed to analyze the contributions of the Primary Healthcare nursing interventions, with primiparae in the promotion of breastfeeding. This is a quasi-experimental, longitudinal study, with a sample consisting of 151 primiparae, who had less than 28 weeks of pregnancy, with the child living for at least six months after the birth, performed between 15 October 2007 and 29 February 200...

In the title triangulo-triruthenium(0) compound, [Ru(3)(C(25)H(22)As(2))(C(6)H(12)Cl(3)O(3)P)(CO)(9)], the bis-(diphenyl-arsino)methane ligand bridges an Ru-Ru bond and the monodentate phosphine ligand bonds to the third Ru atom. Both the arsine and phosphine ligands are equatorial with respect to the Ru(3) triangle. In addition, each Ru atom carries one equatorial and two axial terminal carbon...

This paper uses micro data from the German Socio-Economic Panel to document that the wage structure in West Germany was remarkably stable over the period 1984–97, with little variation over time in wage or earnings inequality among and within different skill groups. The paper investigates a number of possible explanations for the stability of the wage structure and concludes that it is attribut...