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Lima, Peru

Pontifical Catholic University of Peru is a private university in Lima, Peru. It was founded in 1917 by Catholic priest Father Jorge Dintilhac SS.CC as Peru's first non-profit private institution of higher learning. Academically, PUCP ranks alternatively as first or second in Peru.In July 2012, after an Apostolic Visitation, begun earlier, in 2011, by Cardinal Peter Erdo, Archbishop of Esztergom-Budapest, Hungary, the Holy See withdrew from the university the right under canon law to use the titles Catholic and Pontifical in its name, but it was not possible because the legitimate law was the Peruvian Law. However, on Monday, April 28, 2014, the Rector of the University stated that,: "The Holy Father, Pope Francis, has formed a Commission of Cardinals with the mission of meeting to find a 'final, consensual solution,' in the framework of the Apostolic Constitution 'Ex Corde Ecclesiae,' to the outstanding issues" between the Vatican and the University." Besides Cardinal Erdo, the other two Cardinal Members of the Commission will be Cardinal Gerald Cyprien Lacroix, Archbishop of Quebec City, Quebec, Canada, and Cardinal Ricardo Ezzati Andrello, Archbishop of Santiago de Chile, Chile. Wikipedia.

Urteaga-Crovetto P.,Catholic University of Peru

In 2006, transnational ethanol corporations arrived in Chira, a semi-arid zone located in the Piura region of northern Peru. Large expanses of land were used to produce sugarcane for ethanol, which triggered local concern over the pressure this would mean on the regional water balance. From political ecology, I examine how the state and a corporation produced discourses on the idea of water abundance in the Chira Basin in order to secure water rights, which increased the risk of water scarcity for small communities, pastoralists and farmers in the region. In doing so, I call attention to the discursive strategies aimed to facilitate processes of dispossession under a technical ethos that reinforce capital accumulation. Finally, I argue that water abundance discourses contributed to produce a "waterscape" that not only produced unsustainable water use but also reinforced social inequalities. © Antipode Foundation. Source

De Zela F.,Catholic University of Peru
Physics Letters, Section A: General, Atomic and Solid State Physics

We present an algorithm for transforming an arbitrary input polarization state into a nonorthogonal but otherwise arbitrary output polarization state, by using two quarter-wave retarders. Such an array reduces the number of retarders employed in the well-known Simon-Mukunda gadget, which consists of one half-wave and two quarter-wave retarders. The latter was designed to realize arbitrary SU(2) transformations on qubits. The gadget presented here accomplishes a related task, allowing to transforming an input qubit into a target qubit, by choosing a particular SU(2) transformation that is realizable with two quarter-wave plates. © 2012 Elsevier B.V. Source

Catholic University of Peru | Date: 2012-11-13

This new type of transformer comprises a ferromagnetic drum-type core characterized in that the drum core has a plurality of holes or windows parallel to the drum longitudinal shaft to place the windings being the windows arranged close to the periphery of the drum symmetrically distributed at 360 of the circumference, each winding being parallel to the longitudinal shaft of the drum and each one of the windings crossing said longitudinal shaft. The core comprises two main components: a central body and an air gap filling system. The central body is formed by a plurality of silicon steel sheets, stacked one over the other, each of them has slots or spaces on its periphery thereof to place the windings and with an air gap filling system. Said filling system can be: wedge-shaped sheets, set of sheets extending parallel to the shaft of the core or a metal sheet wound around the central body.

The Peruvian government is attempting to implement a formalization plan to deal with the chaotic expansion of small-scale mining activities in the Amazon. However, this plan has been contested, delayed and halted by local miners. Why exactly has it been so hard for the government to enforce a formalization plan in Madre de Dios? This article aims to answer this question by analysing both government efforts to establish control over the region and the challenges it faces in enforcing its formalization plan. It is argued that current resistance to and conflict over the formalization process in Madre de Dios reveals a state governance problem due to the region having been historically governed as a zone for exploitation rather than for social and economic development. Similarly, the analysis highlights the absence of major corporations through which the state can establish a basis for governance, as in other parts of the country. © Antipode Foundation. Source

Guzman M.,Catholic University of Peru | Dille J.,Free University of Colombia | Godet S.,Free University of Colombia
Nanomedicine: Nanotechnology, Biology, and Medicine

Synthesis of nanosized particles with antibacterial properties is of great interest in the development of new pharmaceutical products. Silver nanoparticles (Ag NPs) are known to have inhibitory and bactericidal effects. In this article we present the synthesis of Ag NPs prepared by chemical reduction from aqueous solutions of silver nitrate, containing a mixture of hydrazine hydrate and sodium citrate as reductants and sodium dodecyl sulfate as a stabilizer. The results of the characterization of the Ag NPs show agglomerates of grains with a narrow size distribution (from 40 to 60 nm), whereas the radii of the individual particles are between 10 and 20 nm. Finally, the antibacterial activity was measured by the Kirby-Bauer method. The results showed reasonable bactericidal activity against Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus. The standard dilution micromethod, determining the minimum inhibitory concentration leading to inhibition of bacterial growth, is still under way. Preliminary results have been obtained. From the Clinical Editor: In this paper the synthesis of Ag NPs via chemical reduction from aqueous solutions is discussed. Reasonable bactericidal activity against Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus was demonstrated. © 2012 Elsevier Inc. Source

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