Ternary exclusive or is the (two valued) truth function that is true just in case exactly one of its three arguments is true. This is an interesting truth function, not definable in terms of the binary exclusive or alone, although the binary case is definable in terms of the ternary case. This article investigates the types of truth functions that can be defined by ternary exclusive or, and rel...

introduction: breast milk is a complete food for growing children until 6 months of age, and mothers, as the most important child health care, play a decisive role in their growth. so promoting  their attitude toward the benefits of breastfeeding ensures guarantee child health in the future. this study aimed to assess maternal knowledge and attitude of mashhad toward exclusive bmf in the first ...

Our goal today: Assumption 3 is still pretty strong in the sense that it says that no circuit can guess f(x) much better than the trivial 1/2. We will show that it is implied by the seemingly much weaker assumption that there’s some function f such that no circuit can compute f(x) with probability 1− 1/nc for some constant c > 0. Assumption 4: ∃f ∈ E such that CC1−n−c(f) ≥ 2n . That is, for eve...

We give a simple example that there is no symbolic theory for exclusive or (XOR) that is computationally sound.

background exclusive breastfeeding as the most important part of children's lifeline has the most efficacy in health promotion and prevention of diseases in children. several lines of evidence emphasis on positive effects of breastfeeding on physical and mental child growth. the aim of this study was determinate prevalence of exclusive breastfeeding and related factors in children attending hea...