We propose two Markov chains for sampling (m + 1)-dimensional contingency tables indexed by {1, 2}m × {1, 2, . . . , n}. Stationary distributions of our chains are the uniform distribution and a conditional multinomial distribution (which is equivalent to the hypergeometric distribution ifm=1). Mixing times of our chains are bounded by ( 1 2 )n(n− 1) ln(N/(2m ))= ( 1 2 )n(n− 1) ln(dn/ ), where ...

Introduction: Infants born with congenital anomalies demand individualized nutritional evaluations and recommendations. The anatomical changes of neonatal surgical diseases create specific physiological constraints.Patients with different congenital anomalies have different nutritional support needs. It is essential to know the exact physiology of these anomalies in order to be able to manage a...

Introduction: Childhood obesity is a growing global health problem, but in the view of medical ethics, obesity management in children is associated with challenges. Method and materials: This study is a comprehensive review in English (Cochrane Library, and PubMed) and Persian literature which pointed to the ethical aspects of pediatrics obesity management with content analysis. Results: In t...