Artículos de revistas
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Esta colección incluye artículos de revistas de profesores de la Pontificia Universidad Católica de Chile, publicados en revistas nacionales y extranjeras.
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- ItemA land expropriation machine: the first years of the Urban Improvement Corporation (CORMU) in Chile (1967-1970)(2025) Díaz Peñaloza, Francisco JavierBetween 1967 and 1970, the Corporaci & oacute;n del Mejoramiento Urbano (CORMU) established a strategy for land expropriation in which architecture played a crucial role. Created in 1966 by President Eduardo Frei-Montalva, it was a state agency with the attributes of a private corporation, with ample powers to develop urban renewal projects that vastly surpassed the mere provision of social housing. However, the fact that a developing country like Chile would spend its capital in expropriating urban land and that it would do so to undertake projects that would not address social issues, seems counterintuitive. This peculiar case can be explained if we consider the corporative ethos of Chilean politics since the 1930s and Frei-Montalva's political power. The paper analyses the trajectories of corporatism and Christian Democracy in Chile in the mid-twentieth century, explaining the institutional framework, surrounding the CORMU and describing the mechanism the corporation mobilized to expropriate urban land. Relying on archival documentation and interviews, this text unveils the unexamined relationship between legal tools (the framework) and architectural design (the mechanism) that enabled the CORMU's well-oiled land expropriation machine. Finally, the paper analyses the San Borja Remodelling, the urban scheme where the CORMU's machine found its biggest materialization.
- ItemFraternity as mutual aid or mutual assistance? From political fraternity to Economics of Francesco(Springer Nature, 2025) Hodge Cornejo, CristiánThe objective of this article is twofold: (i) to rethink economics and politics from fraternity perspective. And, on the other hand, (ii) to highlight the contributions of some authors from the Economy of Francesco (EoF) to the proposal of a fraternal economy and a fraternal economics. How can fraternity be conceived in the current version of capitalism, amidst inequalities and the environmental crisis? Firstly, the concept of political fraternity is presented, and how Ángel Puyol understands mutual aid; secondly, it is shown how Stefano Zamagni proposes the principle of fraternity from the paradigm of Civil Economy, not only for economic life, but also for economic thought; thirdly, what Luigino Bruni and Robert Sugden postulate about market relations that would be fraternal, where mutual assistance is understood as team reasoning, is presented; fourthly, what some of the authors from Economy of Francesco write about fraternity, about we-rationality, and about its political dimension are analysed; Finally, some conclusions of the study are provided.
- ItemA long detour(Pontificia Universidad Catolica de Chile, 2022) Díaz Peñaloza, Francisco Javier
- ItemShake table testing for system effects analysis in a 1:2 scale three-story light frame timber building(Sage Journals, 2025) Valdivieso Cascante, Diego Nicolás; Quizanga Martínez, Diego Marcelo; Almazán Campillay, José Luis; López-García González, Diego; Liel, Abbie; López, Nicol; Hernández, Francisco; Guindos Bretones, PabloThis study investigates the impact of system effects on the dynamic behavior of light frame timber buildings (LFTBs) through shake table tests and numerical analysis. Here, the term “system effects” encompasses the influence of the transverse shear walls, the out-of-plane bending stiffness of the diaphragms, and the gravity load, particularly in LFTBs with non-planar shear walls. The findings of this research reveal that system effects notably reduce story drift demands and enhance the lateral stiffness and damping ratio of LFTBs with respect to results from numerical models that do not consider component interactions. This observation highlights a discrepancy between the actual lateral stiffness and that predicted by existing models, particularly at relatively small levels of story drift. The underestimation of these engineering parameters is more apparent at the lower stories, underscoring the significant role of the gravity load in amplifying the beneficial effects of the transverse shear walls and the out-of-plane bending stiffness of the diaphragms. These insights are vital to refine the seismic design and analysis of LFTBs and underscore the importance of incorporating system effects into both numerical and analytical models. This enhanced understanding of component interactions in LFTBs sets the stage for increasing adoption of LFTBs as a sustainable and resilient building solution in earthquake-prone areas.
- ItemCounterflow of Lattice Polarons in Harmonically Confined Optical Lattices(American Physical Society, 2025) Isaule Rodríguez, Felipe; Rojo Francàs, Abel; Morales Molina, Luis; Juliá Díaz, BrunoWe study a mobile impurity in a one-dimensional harmonically confined optical lattice interactingrepulsively with a bosonic bath. The behavior of the impurity across baths with superfluid and Mottinsulator domains is examined, including its full back-action effect on the bath. We characterize the bathimpurity phase diagram and reveal the appearance of a correlated counterflow phase, which we support with an analytical model for a mobile impurity-hole pair. This phase shows an extended combined insulator domain of unity filling but no independent domain of constant density. The transition to this phase features a sudden orthogonality and the change of the shape of the impurity’s profile to that of a free particle in an infinite square well. The findings of this work suggest the appearance of unconventional counterflow in trapped imbalanced atomic mixtures.