Repositorio Institucional de la PUCP

Documentos depositados recientemente

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Una química perdida en los años 60
(Pontificia Universidad Católica del Perú, 2025-11-19) Gadea-Ugarte, Oscar
Book review of the novel "Lessons in Chemistry" by Bonnie Garmus
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La divulgación de la Química y las prácticas editoriales que rayan los límites éticos
(Pontificia Universidad Católica del Perú, 2025-11-19) Ortega-San-Martin, Luis
This editorial focuses on the practices of predatory journals that jeopardize scientific credibility.
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Vitalidad urbana y memoria temporal en las calles comerciales de Tokio: un estudio cuantitativo precovid-19
(Pontificia Universidad Católica del Perú, 2025-12-16) Carmelino Hurtado , Giancarlo
This study analyzes urban vitality as a dynamic socio-spatial phenomenon linked to the temporal memory of commercial streets (shōten-gai) in Tokyo, Japan. Based on the quantitative relationship between pedestrian activity and physical elements of the built environment, hierarchical cluster analysis and multiple discriminant analysis were applied to twenty representative cases. Three states of urban vitality were identified (passive, active, and accelerated) defined by hourly variations in variables such as open shops, urban furniture, and signage. The results suggest that vitality does not depend exclusively on permanent architecture, but rather on the everyday repetition of usage patterns and on semi-permanent visual cues that shape a temporal memory of space, making it possible to identify urban conditions favorable to social interaction and local commerce. The manuscript thus presents the implementation of a proprietary and replicable quantitative methodology that allows for observing how certain combinations of variable factors can contribute to differentiating states of urban vitality. It also offers insights for potential future applications as a tool to support design decisions.
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Memoria y olvido en imaginarios y paisajes urbanos
(Pontificia Universidad Católica del Perú, 2025-12-16) Alvarez-Calderón Silva-Santisteban , Rosabella; Quiroga Robles , Mariano
This essay explores how memory/remembering and oblivion/forgetting shape urban landscapes and collective imaginaries. Throughout history, societies have been molded by oral, written, and artistic traditions, as well as by spatial experiences and perceptions that foster attachments to place. In a continuous feedback process, the presence and absence of memory transform the built environment. Drawing on a comparative perspective between global contexts and two case studies in Lima, an international exposition known as La Feria del Hogar and the La Herradura seaside resort, we examine how memory, or its absence, influences city-making and the ways we imagine urban spaces.
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La recuperación del uso de morteros de cal. La situación en el Perú
(Pontificia Universidad Católica del Perú, 2025-12-16) Barbero Barrera , María del Mar; Montoya Robles , Teresa del Pilar
Traditional materials have been part of our society across much of the world and, by extension, were also widely used in Peru up until the 20th century. The arrival of new materials such as cement and concrete has led to a sudden loss of the knowledge once held about traditional materials. However, in restoration and conservation processes of cultural buildings, understanding the characteristics and types of materials present in such structures is essential, both for their consolidation and reintegration. This requires not only the recovery of the material itself but, more importantly, the revival of traditional skills and the knowledge associated with them. Lime is no exception to this process and, unfortunately, the knowledge related to its use has also been lost. This article explores the use of lime as a traditional material and the importance of its recovery, not only due to its compatibility with traditional substrates but also because of its technical properties, which make it one of the most significant binding agents of both the past and the future.

Documentos depositados recientemente

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