Sampling seeds

Problems of sampling carbonized plant material are discussed. Firstly, the problem of actually selecting a sample in the laboratory is considered, and some experiments which investigate various procedures are described. Secondly, the statistical aspects of determining optimal sample sizes are considered. Formulae are given for calculating optimal sample sizes and confidence intervals. Upper bounds, which are independent of the total population size, are provided for the sample size required to achieve any desired accuracy.     

Linguistic incomprehension in British asylum appeal hearings

For the thousands of appellants who navigate Britain's asylum appeal courts every year, attending a hearing conducted in a language they do not understand and participating via an interpreter, is usually viewed as a significant disadvantage. The findings of a study that entailed ethnographic and structured observations of over 390 asylum appeal hearings in England and Wales during 2013 and 2014, however, indicate that the presence of interpreters often offers an important source of support in adversity. While the natural assumption may be to associate linguistic incomprehension with detriment, it transpires that there are important exceptions to this rule. Given the toughening of UK border controls in recent years, as well as British reluctance to share responsibilities for international refugees such as those fleeing from violence in Syria, these observations offer rare solace in a bleak policy landscape.