To determine the possible involvement of Wnt signaling in eye development, we analyzed the expression patterns of Wnts and Wnt inhibitors in the chicken eye at stage 25, when the first wave of neural crest migration into the cornea begins, and stage 27, just prior to the second wave of neural crest migration. Wnt expression is developmentally regulated in the chicken eye, and antagonists of Wnt...

OBJECTIVES Sexual partnership patterns, forced sex, and condom non-use can contribute to STI risk, but little is known about these patterns among Aboriginal young people despite elevated STI risk in this group. We describe sexual relationship and condom use patterns among Canadian Aboriginal young people, and how these patterns relate to the socio-structural context as experienced by young peop...

Age and sex patterns of migration are essential for understanding drivers of population change and heterogeneity of migrant groups. We develop a hierarchical Bayesian model to estimate such patterns for international migration in the European Union and European Free Trade Association from 2002 to 2008, which was a period of time when the number of members expanded from 19 to 31 countries. Our m...

Cloud services allow for hosting applications partially or completely in the Cloud by migrating their components and data. Especially with respect to data migration, a series of functional and non-functional challenges like data confidentiality arise when considering private and public Cloud data stores. In this paper we identify some of these challenges and propose a set of reusable solutions ...

Background Autumn latitudinal migrations generally exhibit one of two different temporal migration patterns: type 1 where southern populations migrate south before northern populations, or type 2 where northern populations overtake southern populations en route. The ruby-throated hummingbird (Archilochus colubris) is a species with an expansive breeding range, which allows opportunities to exam...

Since the late 1980s, the Chinese government has gradually eased restrictions to internal migration. This easing, along with rapid growth of the Chinese economy, substantial increases in foreign and domestic investments, and policies encouraging development in the Western provinces, have greatly stimulated internal migration. Earlier studies have established that since the 1980s, migration patt...