We show that professional soccer players and their coaches exhibit reference-dependent behavior during matches. Controlling for the state of the match and for unobserved heterogeneity, we show on a minute-by-minute basis that players breach the rules of the game, measured by the referee’s assignment of cards, significantly more often if their teams are behind the expected match outcome, measure...

Let S be a nonempty bounded set in R2. Then S is staxshaped if and only if every 3 or fewer boundary points of S are clearly visible via S from a common point of S. The number 3 is best possible.

Let Γ be a topological semigroup acting on a topological space X, and let Γ0 be a subsemigroup of Γ. We give general conditions ensuring that Γ and Γ0 have the same transitive points.

The transfer of council estates into housing association (HA) ownership has transformed the structure of social housing provision across Britain; in half of English local authorities council housing is a thing of the past. From 1997, stock transfer extended beyond rural shire districts, with urban estates accounting for the majority of properties being handed to new social landlords. This study...

The paper focuses on the main conceptual points of Military Medical Doctrine Ukraine. There are discussed approaches to reforming Ukraine Armed Forces medical support system, which key tasks upgrade military structure.