The Quasi-lattice of Indiscernible Elements

The literature on quantum logic emphasizes that the algebraic structures involved with orthodox quantum mechanics are non distributive. In this paper we develop a particular algebraic structure, the quasi-lattice ( \mathfrakI{\mathfrak{I}}-lattice), which can be modeled by an algebraic structure built in quasi-set theory \mathfrakQ{\mathfrak{Q}} . This structure is non distributive and involve indiscernible elements. Thus we show that in taking into account indiscernibility as a primitive concept, the quasi-lattice that ‘naturally’ arises is non distributive.     

Paraconsistent Logics and Translations

In 1999, da Silva, D'Ottaviano and Sette proposed a general definition for the term translation between logics and presented an initial segment of its theory. Logics are characterized, in the most general sense, as sets with consequence relations and translations between logics as consequence-relation preserving maps. In a previous paper the authors introduced the concept of conservative translation between logics and studied some general properties of the co-complete category constituted by logics and conservative translations between them. In this paper we present some conservative translations involving classical logic, Lukasiewicz three-valued system L ₃, the intuitionistic system I ¹ and several paraconsistent logics, as for instance Sette's system P ¹, the D'Ottaviano and da Costa system J ₃ and da Costa's systems C _n, 1≤ n≤ω.     

The Impact of Coping Strategies on the Operations in the Jungle Course of the Brazilian Army

The aim of this study is to investigate which coping strategies can predict success or failure in the Brazilian Army’s Jungle Operations Course. To achieve this, the sample included 36 military volunteers (18 who quit and 18 who completed the course) from a total of 63 candidates (57.14%), all male career officers and sergeants of the Brazilian Army. Results indicate that completers (n = 18) show significantly higher scores in 2 of the 8 different coping strategy factors—self-control and positive reappraisal—than those in the quitters group (n = 18). In general, emotion-focused strategies were prominent in relation to problem-focused ones. The findings of this study suggest that coping strategies focused on emotion, especially self-control and positive reappraisal, can influence individuals’ performance in situations of intensive military training, which possibly makes them more resilient, preparing them for a more successful training.