A total of 1,152 Lohmann Brown laying hens were used to study the influence of level (3.5 and 4.0%) and source (coded FIN, COA, and OYS) of Ca in the diet on productive performance and egg quality from 58 to 73 wk of age. The FIN diet contained all the Ca carbonate as fine limestone (LIM). In the COA and OYS diets, 40% of the fine LIM was substituted with either coarse LIM or oyster shell. Each...

This paper suggests and discusses an answer to the following question: What distinguishes causal from non-causal or coincidental cooccurrences? The answer derives from Elizabeth Anscombe’s idea that causality is a highly abstract concept whose meaning derives from our understanding of specific causally productive activities (e.g., pulling, scraping, burning), and from her rejection of the assum...

.......This issue of IEEE Micro is a little bit different, to say the least. It includes four debates from the Computer Architecture Research Directions (CARD) workshop that was held as part of the 13th Annual IEEE/ACM International Symposium on High-Performance Computer Architecture in February 2007. The organizers approached me about a special Micro issue about CARD and I said, ‘‘Why not?’’ W...

Selection for high productivity has been the long term focus of pig breeding programs worldwide, however, Rauw et al. (1998) highlighted that selection for productivity alone has unfavourable consequences for a number of metabolic, reproduction and health traits across species. More recently, Prunier et al. (2010) reviewed relationships between high physiological demands and the health and welf...

Canadian and US evaluations of Holstein bulls were compared for longevity measures (433 bulls) and somatic cell score (354 bulls). Bulls were required to have a birth year of > or = 1975, daughter information from > or = 20 herds, and a reliability of > or = 50% in both Canada and the US. The number of bulls with longevity evaluations was greater for early years because longevity information wa...

AIM To investigate the impact of regular exposure to paediatric medical trauma on multidisciplinary teams in a paediatric hospital and the relationships between psychological distress, resilience and coping skills. METHOD Symptoms of post-traumatic stress disorder, secondary traumatic stress, depression, anxiety, stress, burnout, compassion satisfaction, resilience and coping skills were meas...

PURPOSE Many older adults consider driving vital to maintaining their preferred lifestyle and engagement with society, yet it is normative for individuals to eventually stop driving. This study examined the impact of driving cessation on older adults' productive and social engagement and whether their mental and physical health mediated this relationship. DESIGN AND METHODS Multilevel modelin...