University of Amsterdam

About: University of Amsterdam is a education organization based out in Amsterdam, Noord-Holland, Netherlands. It is known for research contribution in the topics: Population & Context (language use). The organization has 59309 authors who have published 140894 publications receiving 5984137 citations. The organization is also known as: UvA & Universiteit van Amsterdam.

The Interpersonal Effects of Anger and Happiness in Negotiations

Abstract: Three experiments investigated the interpersonal effects of anger and happiness in negotiations In the course of a computer-mediated negotiation, participants received information about the emotional state (anger, happiness, or none) of their opponent Consistent with a strategic-choice perspective, Experiment 1 showed that participants conceded more to an angry opponent than to a happy one Experiment 2 showed that this effect was caused by tracking--participants used the emotion information to infer the other's limit, and they adjusted their demands accordingly However, this effect was absent when the other made large concessions Experiment 3 examined the interplay between experienced and communicated emotion and showed that angry communications (unlike happy ones) induced fear and thereby mitigated the effect of the opponent's experienced emotion These results suggest that negotiators are especially influenced by their opponent's emotions when they are motivated and able to consider them

Cancer stem cells: The challenges ahead

Abstract: Cancer stem cells (CSCs) have been proposed as the driving force of tumorigenesis and the seeds of metastases. However, their existence and role remain a topic of intense debate. Recently, the identification of CSCs in endogenously developing mouse tumours has provided further support for this concept. Here I discuss the challenges in identifying CSCs, their dependency on a supportive niche and their role in metastasis, and propose that stemness is a flexible — rather than fixed — quality of tumour cells that can be lost and gained.

A twin-pronged attack on complex traits

Abstract: Before one starts the hunt for quantitative trait loci (QTLs) for a complex trait it is necessary to show that the trait is genetically influenced. This evidence is most likely to come from the classical twin study—the demonstration that monozygotic twins are more similar for the trait than dizygotic twins. The strengths and weaknesses of twin studies are discussed, and it is suggested that, far from becoming irrelevant with advances in molecular biology, they can improve the efficiency of QTL detection and play an important role in unravelling developmental genetic mechanisms

Modal languages and bounded fragments of predicate logic

Abstract: Definition des fragments modaux de la logique des predicats a partir de formules du premier ordre qui sont des traductions des proprietes poly-modales elementaires. Distinguant les fragments variables et finis des fragments lies a un quantificateur, l'A. developpe une version semantique des fragments gardes en remplacant les liens syntaxiques par des restrictions sur les types d'attribution dans les modeles generalises. Se referant a l'algebre cylindrique, l'A. indique les nouvelles directions que peuvent prendre les theoremes de Tarski dans un environnement mathematique: celle des contraintes structurelles speciales, des extensions infinies, de la logique modale etendue et d'une semantique dynamique