The breeding biology of a captive, isolated population Dalmatian Pelicans (Pelecanus crispus) at theShanghaiZoo,China, was studied from 2007 to 2019. age the estimated three four years old, and they started in late October or early November. clutch size varied between one two eggs per nest, were 83.2 ±4.8 mmin length, 55.6 ±2.9 breadth 136.1 ±21.5 gin weight. fertility fluctuated slightly, with...

1 Using chemical sterilants and high-level disinfectants in health care facilities The update of the Association for the Advancement of Medical Instrumentation American National Standard Chemical sterilization and high-level disinfection in health care facilities, ANSI/AAMI ST58:2013, is available for purchase and should become part of health care facilities’ evidence-based library. Below is a ...

Three papers in the Journal this month consider issues related to measuring, understanding and treating mental ill health in childhood. Baron-Cohen et al (pp. 500–509) undertook a study to establish the prevalence of autism-spectrum conditions in Cambridgeshire using two case ascertainment methods. First, a survey of individuals on the Special Educational Needs register and second, a screening ...

Suppose k centers are fit to m points by heuristically minimizing the k-means cost; what is the corresponding fit over the source distribution? This question is resolved here for distributions with p ≥ 4 bounded moments; in particular, the difference between the sample cost and distribution cost decays with m and p as mmin{−1/4,−1/2+2/p}. The essential technical contribution is a mechanism to u...