Functional analysis of prehistoric flint tools by high-power microscopy: A review of West European research

The present paper is a review of the functional analysis of prehistoric flint tool edges by means of high-power microscopy. The article, which focuses exclusively on West European research, discusses a series of methodological issues and problems related to the development and distinctiveness of the so-called wear polishes, produced by the various materials with which prehistoric stone tools came in contact. A selection of functional observations on tool use from the Upper Paleolithic, the Mesolithic, and the Neolithic periods is presented. The archaeological part of the review is concerned with two trends in functional analysis, namely, (1) controlled site-specific studies with different levels of foci and (2) thematic studies of particular tool types, e.g., endscrapers, burins, and unmodified débitage. Finally, problems concerning the interpretation of hafting and of multiple tool use are discussed.     

Explaining Congressional Staff Members’ Decisions to Leave the Hill

The high turnover of congressional staff members can have a negative effect on the functioning of Congress as an institution. Though junior staff turnover is not considered a significant concern, the high turnover of senior staff members is problematic. Using data from a survey of staff members located in the Washington personal offices of House of Representatives members, this article investigates what factors influence the likelihood to leave congressional employment. Specifically, I explore how solidary, purposive, and material work incentives influence staff members’ plans to exit. The results of two different models—one for junior and mid-level staff members and one for executive staff members—indicate that purposive incentives, and material incentives that accrue for future employment opportunities, carry the most weight across both models. Current salary has a significant effect on executive staff members, but not on their lower-level counterparts. Following this analysis, I propose actions that congressional offices might take to retain staff.     

Space-time geography of female live-in child domestic workers in Dhaka,Bangladesh

Live-in child domestic workers in Bangladesh often experience the surveilling power of their employer's gaze as a Foucauldian panopticon, which both disciplines and engages children in forms of self-discipline. I argue that female child domestic workers in particular have a form of ‘thin’ agency whereby they are severely restricted in their abilities to make independent decisions or to act to their own benefit. I ethnographically unpack the concept of thin agency by analyzing material, cultural, spatial and discursive constraints that both employers and female child domestic workers engage in their daily lives.     

Degradation of Archaeological Wood Under Freezing and Thawing Conditions—Effects of Permafrost and Climate Change

The degradation of archaeological wood at freezing and thawing temperatures is studied at the site of Qajaa in West Greenland through a combination of environmental monitoring, measurement of oxygen consumption and microscopy of wood samples. Permanently frozen wood is still very well preserved after 2–4000 years, while wood samples that thaw every summer show attack by soft rot and an average density loss of 0.1 g cm^–3 (corresponding to 25% of the dry mass) over the past 27 years. Future increases in temperature may increase the decay rate significantly (Q₁₀ = 4.2 at 0–10°C) but the effects on site depend on local hydrology.     

Mode‐Locking and Regional Business Cycle Synchronization*

Abstract. Business cycles in different regions of the United States tend to synchronize. This study investigates the reasons behind this synchronization of business cycles and the consequent formation of a national business cycle. Trade between regions may not be strong enough for one region to “drive” business cycle fluctuations in another region. This study suggests that regional business cycles synchronize due to a nonlinear “mode‐locking” process in which weakly coupled oscillating systems (regions) tend to synchronize. There is no definitive test for mode‐lock. However, simulations, correlations, Granger causality tests, tests for nonlinearities, vector autoregressions, and spectral analysis reveal modest econometric support for the regional mode‐locking hypothesis of business cycle synchronization.