An enzymatic synthesis of sphingomyelin, N-acylsphingosylphosphorylcholine, was demonstrated by Sribney and Kennedy to occur via a reaction between ceramide (Nacylsphingosine) and CDP-choline. They indicated in this study that N-acyl derivatives of fhreo-sphingosine were far superior to the eryfhro derivatives as acceptors for the phosphorylcholine moiety. We have repeated these enzymatic exper...

This paper investigates convergence in left-right ideological positions in The Netherlands using cointegration techniques. Our sample consists of 765 weekly observations on those positions as well as on the corresponding political party preference. The time series data display nonstationary patterns in the sense that their means are not constant over time. Therefore, we rely on recently develop...

1. Overview China, in its 50 years of communist rule since liberation, has experienced cultural and ideological change on a massive scale. The editorials from the People’s Daily, the typical public discourse representing the Communist ideology of China, encoded these ideological changes in its formulations. This study will present the meaning changes of some political-social keywords in editori...

The American judiciary, like other branches of government, has increasingly come under attack as both ideologically driven and polarized. At the same time, scholars have limited understanding of the extent to which politicization has shaped the courts or how its influence varies among tiers of the judiciary and across states. We present a simple theory of judicial politicization that models the...

Social media represent a rapidly growing source of information for citizens around the world. In this paper, we measure the degree of ideological homophily and segregation on social media. In particular, we construct a network based upon links between politically-engaged users and find that the network exhibits previously documented homophily patterns in offline social networks. Likewise, the d...

Legislative speech records from the 101st to 108th Congresses of the US Senate are analysed to study political ideologies. A widely-used text classification algorithm – Support Vector Machines (SVM) – allows the extraction of terms that are most indicative of conservative and liberal positions in legislative speeches and the prediction of senators’ ideological positions, with a 92 per cent leve...

In argumentative political speech, the way an issue is framed may indicate the unstated assumptions of the argument and hence the ideological position of the speaker. Our goal is to use and extend our prior work on discourse parsing and the identification of argumentation schemes to identify specific instances of issue framing and, more generally, ideological positions as they are expressed in ...

Prosociality refers to dispositions and behaviors intended benefit others, the present study assumed that these reflect people's values. Much of research on prosociality has examined in what can be called interpersonal domain, e.g., helping others. I propose also exists ideological domain. People hold prosocial values concern collectives, not specific individuals. Multilevel analyses data colle...