The use of strontium isotopes as an indicator of migration in human and pig Lapita populations in the Bismarck Archipelago,Papua New Guinea

This paper examines the potential use of strontium isotopes (⁸⁷Sr/⁸⁶Sr) for identifying migration within Lapita populations and their commensal animals, specifically the pig (Sus scrofa). Lapita people (ca. 3300–2200 BP) were the initial colonists of the island groups to the east of the Solomon Islands, spreading from Papua New Guinea to Tonga and Samoa within a few centuries. Mobility is assumed to have been an important mechanism for maintaining cultural solidarity between Lapita communities. It has been previously argued that Lapita populations became progressively more sedentary over time after the initial colonising events. Two Lapita sites, Kamgot and Balbalankin, from the Anir Islands in the Bismarck Archipelago are included in the analysis and fall within the Early (ca. 3300–3000/2900 BP) and Middle (ca. 3000/2900–2700 BP) Lapita periods respectively.     

Gebel Ramlah—a Unique Newborns’ Cemetery of the Neolithic Sahara

Post-Pleistocene climatic improvement in the Northern Hemisphere after ca. 9550 BC allowed human populations to recolonize large parts of North Africa in what is today the Sahara Desert. In the Egyptian Western Desert, the beginnings of human occupation date as early as ca. 9300 BC. Occupation continued until the middle of the third millennium BC when final desertification of the area no longer afforded human occupation. The settlement of the Neolithic cattle and sheep/goat herders developed along with the rhythm of alternating wet and dry climatic oscillations. One of the areas occupied intensively during the early and middle Holocene was Gebel Ramlah. Pastoral populations established their settlements around the shores of a paleo-lake adjacent to a rocky massif, to exploit the local savannah environment. During most of the Neolithic, they buried their dead dispersed outside of their settlements. Only during the Final Neolithic (after ca. 4600 BC) did they place them exclusively in cemeteries. Of six Final Neolithic cemeteries investigated at Gebel Ramlah to date, one is entirely unprecedented, not only in North Africa but also globally at such an early date. For just under 200 years (ca. 4500–4300 BC), it served exclusively for the inhumation of infants who died around (perinate) or shortly after the time of birth (neonate). Thirty-two burial pits contained skeletal remains of 39 individuals, not only infants but also at least two adult females accompanied by perinates/neonates. Older children (>?3 years) were interred at a nearby cemetery that primarily comprised adults.     

What's Happened to the Watchful Eye?

This article reports results of a follow-up study to my book Keeping a Watchful Eye (1990), updating it with data from the 1990s. It examines whether congressional oversight has increased or decreased relative to earlier periods, how the variables that predicted oversight behavior in the period from 1961 to 1983 worked in later years, why changes have occurred, and what they mean. It also examines whether there was something distinctive about oversight in the 1990s when Republicans dominated both chambers. Results indicate that the amount of primary-purpose oversight continues to be quite high and that the model developed in the book to explain committee oversight behavior remains remarkably effective. What has changed is a large drop in legislative hearings and meetings (where oversight behavior often occurs), something that the data show actually predates the Republican 104th Congress. However, the Republican takeover did lead to a more oppositional oversight context–to more oversight hostile to the basic goals of programs and agencies.