I accept the main thesis of the article according to which representation of knowledge is more basic than representation of belief. But I question the authors’ contention that humans' unique capacity to represent belief does not underwrite the capacity for the accumulation of cultural knowledge.

The authors describe an energy harvester circuit fabricated with integrated thin ferroelectric film capacitors on a silicon substrate. The harvesting mechanism is a folded double-beam cantilever with proof masses at both end points. Interdigitated electrode capacitors are located at the three points on the folded cantilever that are expected to experience maximum bending moment and should produce up to 5V as a function of external vibration. The die has the dimensions of 1.6mm on a side and is designed to be mounted in a TO-18 package transistor-style package. Due to its small size, the self-contained piezoelectric MEMs device should produce 50 picowatts in a 1g vibration environment while occupying little space.

What are the theoretical implications of a universal genealogy? After the demise of relativism in kinship studies, there is much to be gained by joining old formal-structural analysis of kinship to recent cognitive-evolutionary approaches. This commentary shows how the logic of kinship terminologies, specifically those of the Seneca-Iroquois, can be clarified by looking at the relationship between opposite-sex/same-sex sibling pairs.

In the west of Ireland, fosterage and adoption are correlated with illegitimacy. No one would be so cruel or foolish as to abandon one's own child unless there was a powerful reason for doing so. Conception out of wedlock is one such reason. This article attempts to carry out an analysis which is not theoretical but contextual or situational. It examines the ideology of kinship and family relationships and their associated social values in rural western Ireland. The aim is to bring meaning to the life and experiences of a particular individual, an illegitimate child fostered on a family farm in the west of Ireland, by means of an exploration of the ideology of blood and its social reverberations.