New Ways of Thinking About Cultural Property: A Critical Appraisal of the Antiquities Trade Debates

In debates over the trade in archaeological objects or antiquities, on one end are those who believe that everyone has a shared interest in and claim to the common heritage of humanity, and thus support a vibrant and legal trade in cultural materials. On the other end are those who believe that cultural objects have special significance for specific groups and thus support the efforts of such groups to regulate their trade and seek their repatriation. The aim of this Essay is to critically examine the components of each group\u27s arguments--their goals, assumptions, and inconsistencies--and try, where possible, to identify what implicit concerns may be driving their current stances in the debate. For it is only when we unpack the individual positions and arguments of the different stakeholders in the antiquities debates that we may move the discussion forward from its current stalemate and develop more nuanced policies, which not only may represent pragmatic solutions, but might better satisfy the many interests involved

How the structure of precedence constraints may change the complexity class of scheduling problems

This survey aims at demonstrating that the structure of precedence constraints plays a tremendous role on the complexity of scheduling problems. Indeed many problems can be NP-hard when considering general precedence constraints, while they become polynomially solvable for particular precedence constraints. We also show that there still are many very exciting challenges in this research area

Determinants of Monetary Poverty among Female-Headed Households in Benin

This study investigates the impact of the gender of the household head on the determinants of monetary poverty in the Republic of Benin using data collected during the 1999 living standards measurement survey in the country's rural and urban areas. The results show that there has not been any feminization of poverty since 1995. In 1999, the incidence of poverty among female household heads was lower than that of their male-headed counterparts, but in some cities the poverty gap was higher. Based on these results, some suggestions are made in order to reduce the incidence of poverty in Benin.Poverty, female-headed households, rural, urban, gender, education, Benin

Gauge-invariant massive BF models

Consistent interactions that can be added to a free, Abelian gauge theory comprising a BF model and a finite set of massless real scalar fields are constructed from the deformation of the solution to the master equation based on specific cohomological techniques. Under the hypotheses of analyticity in the coupling constant, Lorentz covariance, spacetime locality, Poincare invariance, supplemented with the requirement on the preservation of the number of derivatives on each field with respect to the free theory, we obtain that the deformation procedure leads to two classes of gauge-invariant interacting theories with a mass term for the BF vector field $A_{\mu }$ with U(1) gauge invariance. In order to derive this result we have not used the Higgs mechanism based on spontaneous symmetry breaking.Comment: 63 page