Patrilocality and hunter-gatherer-related ancestry of populations in East-Central Europe during the Middle Bronze Age.

The demographic history of East-Central Europe after the Neolithic period remains poorly explored, despite this region being on the confluence of various ecological zones and cultural entities. Here, the descendants of societies associated with steppe pastoralists form Early Bronze Age were followed by Middle Bronze Age populations displaying unique characteristics. Particularly, the predominance of collective burials, the scale of which, was previously seen only in the Neolithic.

The Special Delivery Unit: A Novel Concept for Mother-Baby Continuity for Major Fetal Abnormalities.

Objective: This article describes the experience in the planning and development of a special delivery unit (SDU) at our free-standing children's hospital in Austin, Texas.

Study Design: Description of various aspects of the development of the SDU. In addition, telephone surveys were obtained from five other institutions regarding the planning and current status of their SDUs.

[Clinical efficiency and cost-effectiveness of standard metal crowns for primary molars].

The aim of the study was to assess clinical efficacy and cost-effectiveness of standard metal crowns for primary molars restoration. The paper contains the results of 3-year study of 2 groups of children aged 3-9, whose molars were restored using different techniques after treatment of chronic fibrous pulpitis. In the first group (42 children) 128 temporary molars were restored using filling materials (glass ionomer cements, compomers), in the second group (35 children) 106 temporary molars were restored using standard metal crowns (3M ESPE USA).

Mitochondrial genomes reveal an east to west cline of steppe ancestry in Corded Ware populations.

From around 4,000 to 2,000 BC the forest-steppe north-western Pontic region was occupied by people who shared a nomadic lifestyle, pastoral economy and barrow burial rituals. It has been shown that these groups, especially those associated with the Yamnaya culture, played an important role in shaping the gene pool of Bronze Age Europeans, which extends into present-day patterns of genetic variation in Europe. Although the genetic impact of these migrations from the forest-steppe Pontic region into central Europe have previously been addressed in several studies, the contribution of mitochondrial lineages to the people associated with the Corded Ware culture in the eastern part of the North European Plain remains contentious.