: The Bracero Experience . Maria Herrera-Sobek.

Trefftz–Herrera Method

The author’s algebraic theory of boundary value problems has permitted systematizing Trefftz method and expanding its scope. The concept of TH-completeness has played a key role for such developments. This paper is devoted to revise the present state of these matters. Starting from the basic concepts of the algebraic theory, Green–Herrera formulas are presented and Localized Adjoint Method (LAM...

Coleff - Herrera currents revisited ?

In the present paper, we describe the recent approach to residue currents by M. Andersson, J. E. Björk, H. Samuelsson [2, 12, 13], focusing primarily on the methods inspired by analytic continuation (which were initiated in a quite primitive form in [8]). Coleff-Herrera currents (with or without poles) play indeed a crucial role in Lelong-Poincaré type factorization formulas for integration cur...

Data Prospects : IPUMS - International 8 Matt Sobek

The Integrated Public Use Microdata Series (IPUMS) is a suite of population data projects developed at the Minnesota Population Center of the University of Minnesota. The largest of these, IPUMS-International, is the world’s most extensive collection of publicly accessible population microdata. Related IPUMS databases consist of U.S. census and survey data and historical census data from Europe...

Images of the Last Judgment in Seville: Pacheco, Herrera el Viejo, and the Phenomenological Experience of Fear and Evil

Maria Montessori

The figure of Maria Montessori stands out above most of those who were involved in the New Education movement. Rarely have attempts been made to establish a set of educational precepts, which would have such universal validity as hers, and very few others had such a powerful influence on developments in the world as a whole. The all-embracing nature of her ideas is perhaps all the more astonish...