Accurate interpretation of reported breastfeeding rates is essential in understanding the true picture of a country's breastfeeding status. In Sri Lanka, where the reported exclusive breastfeeding (EBF) rate among infants aged from 0 to 5 months is 75%, accurate understanding of this rate is of the utmost importance. The danger of misinterpreting the data and assuming that Sri Lanka has achieve...

A category learning experiment involving human participants compared the dif® culties of four types of shift learning. Initial learning was of an exclusive-or (XOR) structure on two of three stimulus dimensions. One shift type was a reversal, a second shift was to a single previously relevant dimension, a third shift was to a single previously irrelevant dimension, and a fourth shift was to an ...

At a global scale the vegetation of the world is sometimes described in terms of six Floristic Regions, often called the Floral Kingdom of the world. The distinction between regions is based on distinctive suites of flowering plants, taking into account those (particularly families) that are exclusive (endemic) to the region. Confined to South Africa is one of these distinct kingdoms; the Cape ...

We prove the following result regarding operations on a binary word whose length is a power of two: computing the exclusive-or of a number of rotated versions of the word is an invertible (one-to-one) operation if and only if the number of versions combined is odd. (This result is not new; there is at least one earlier proof, due to Thomsen in his PhD thesis [12]. Our proof may be new.)

Nonlocal games are used to display differences between classical and quantum world. In this paper, we study nonlocal games with a large number of players. We give simple methods for calculating the classical and the quantum values for symmetric XOR games with onebit input per player, a subclass of nonlocal games. We illustrate those methods on the example of the N-player game (due to Ardehali [...

Measurements of exclusive b-hadron lifetimes at LEP are reviewed. Each LEP experiment has collected about 3.5 million hadronic Z 0 decays between 1990 and 1994. This data allows to identify a large variety of exclusive decay chains of a speciic b hadron with suitable statistics to measure lifetimes. The world averages of exclusive b hadron lifetimes have gained a precision of less than 10%. The...

Background and aims: The World Health Organization and United Nations Children’s Fund (UNICEF) recommended executive breastfeeding for 6 months after birth. The purpose of this study was to determine the prevalence of executive breastfeeding in Iran by a meta-analysis study to be used by policy-makers in order to health programmer plan in this field. Methods...

We review the theory of hard exclusive scattering in Quantum Chromodynamics. After recalling the classical counting rules which describe the leading scale dependence of form factors and exclusive cross-sections at fixed angle, the pedagogical example of the pion form factor is developped in some detail in order to show explicitely what factorization means in the QCD framework. The picture gener...