Observations of magnetically active stars with Chandra and XMM-Newton have deepened our knowledge of the physics of the atmospheres in late-type stars. In this review paper, I discuss two topics that have profited significantly from Chandra and XMM-Newton. Of particular interest, studies of the elemental composition of stellar coronae have taken advantage of the high spectral resolution availab...

We study lead time options in a manufacturer and a retailer supply chain where the retailer uses the (R, Q) inventory policy: the retailer places an order to the manufacturer who initially promises to deliver the order a lead time later. The manufacturer also promises to expedite or postpone the delivery of the order by a certain amount of time if the retailer makes such a request. Consequently...

The evidence for string/string-duality can be extended from the matching of the vector couplings to gravitational couplings. In this note this is shown in the rank three example, the closest stringy analog of the Seiberg/Witten-setup, which is related to the Calabi-Yau WP 4 1,1,2,2,6(12). I provide an exact analytical verification of a relation checked by coefficient comparison to fourth order ...

Despite the fact that contracts are, by definition, an agreement between two or more parties, most formal studies limit themselves to contracts regulating only a single party or the parties independently of each other, without looking into how permissions, obligations or prohibitions of one party affect the other. This article deals with the analysis of what different types of permissions mean ...

Psychiatric reform in Italy consisted of the implementation of legislative changes derived from anti-institutional experiments conducted by Franco Basaglia and his group in the 60's and 70's of the 20th century. The activity of Basaglia's group was an integral part of the European reform movement of that time, which profited from the economic, cultural and political prosperity for changes in ps...

The purpose of this study was to investigate the moderator effects of autonomous motivation on the relationship between subjective well-being and physical health. Using a cluster sampling approach 486 students (403 female and 83 male students) were included in this study. Subjective well-being, physical health and autonomous motivation were determined by self-report measures. Data were analysed...