background: breast feeding is subject to social and cultural conditions  of societies.basnef model considered as one of the comprehensive models of behavior study, especially in developing countries. this study was performed to investigate the status of breast feeding during the first two years of infants’ life and its risk factors through basnef model structures. methods: in this cross-section...

Triangular norms, or t-norms for short, play an important role for the semantics of fuzzy logics. Although an enormous number of examples and a remarkable number of construction methods for this kind of operation has been established, a uniform approach is still outstanding. This paper is devoted to a specific algebraic-geometrical framework within which t-norms, up to isomorphism, can be descr...

and Concrete Norms in Institutions

In this paper we study three semantics to combine constitutive and regulative norms. In the first semantics, called the simple-minded semantics, the output of the constitutive norms are intermediate facts used as input for the regulative norms. The second method is called throughput, and adds the input of the constitutive norms to the intermediate facts. The third method is called reusable thro...

Contour lines totally fix the structure of leftcontinuous t-norms. For each t-norm, these contour lines are determined by the corresponding residual implicator. Most properties involving residual implicators can now easily be translated into properties involving contour lines. As the portation law expresses associativity, we dispose of a powerful tool for constructing left-continuous t-norms. I...

Norms specifying constraints over institutions are stated in such a form that allows them to regulate a wide range of situations over time without need for modification. To guarantee this stability, the formulation of norms need to abstract from a variety of concrete aspects, which are instead relevant for the actual operationalization of institutions. If agent institutions are to be built, whi...