Descripción completa.

Descripción completa.

Descripción completa.

The sources of the theories underlying Czech Cubist architecture before World War I have been only sketchily studied to date. To analyze these theories and identify their sources, I focus on the work of architect and theorist Pavel Janak (1882-1956),…

The work of Jean Cocteau (1889-1963), the poet, while extremely diverse, presents nonetheless a coherence and a unity of tone which transmit his artistic vision and at the same time reveal his creative process., Three works in particular, Opium--Journal d'une…

In this paper we present the theoretical analysis and experimental results of a holographic collimator made in silver halide sensitized gelatin. Diffraction efficiency up to 70% over the whole plate and wave aberration as low as 20-lambda in the maximum…

Between 1960 and 1980 the gap in earnings between black and white
males narrowed by 15 percent. A detailed analysis of 1960, 1970, and 1980
Census data indicates that increases in the relative return to education
were largely responsible for…

This paper tests the hypothesis that compulsory school attendance
laws, which typically require school attendance until a specified birthday,
induce a relationship between years of schooling and age at school entry.
Variation in school start age created by children's date…

This paper reports nonparametric estimates of the effect of labor supply
behavior on the payments to families enrolled in the Seattle/Denver Income
Maintenance Experiment. The randomized assignment of families to the
treatment groups in this experiment was designed to permit…

If hours can be freely varied within jobs, the effect on hours of
changes in preferences for those who do change jobs should be similar to
the effect on hours for those who do not change jobs. Conversely, if
employers…