En este trabajo se presentan criterios que permiten estimar parámetros de desinfección mediante el uso de luz ultravioleta UV-C de onda corta, en agua, aire y superficies. Se indican métodos para evaluar la dosificación en función de la potencia de la lámpara empleada. Este tipo de estrategia permiten resultados de hasta 99.9% de desinfección, inactivando diferentes tipos de microorganismos. Estas referencias sirven de base para el diseño de dispositivos de utilidad en la presente emergencia por COVID-19, cuyo origen, al ser (...) viral, es susceptible al mismo método de desinfección debido al proceso de dimerización del ADN, donde el daño producido en la estructura celular, afecta la capacidad de reproducción y de funcionalidad. Palabras Clave: luz UV-C o germicida, desinfección UV, dimerización del ADN. Referencias [1]R. Wallace, M. Ouellette and J. Jean, "Effect of UV‐C light or hydrogen peroxide wipes on the inactivation of methicillin resistant Staphylococcus aureus, Clostridium difficile spores and norovirus surrogate", Journal of Applied Microbiology, vol. 127, no. 2, pp. 586-597, 2019. [2]J. Vargas, "Efecto de la radiación gamma sobre las características físico - químicas, sensoriales y microbiológicas en páprika en polvo ", Revista ECIPeru, pp. 68-71, 2019. [3]M. Ángeles García y P. Fernández, "Luz ultravioleta e inmunidad", Piel, vol. 21, no. 8, pp. 367-368, 2016. [4]W. Pachuau y R. Tiwari, " Deep Ultraviolet Light Emitting Diodes: Physics, Performance, and Applications", ECS Meetings, 2014. [5]W. Kowalski, Ultraviolet Germicidal Irradiation Handbook, 5th ed. Berlin: Springer Berlin, 2014, pp. 1-13. [6]W. Kowalski, Ultraviolet Germicidal Irradiation Handbook, 5th ed. Berlin: Springer Berlin, 2014, pp. 17-47. [7]"Germicidal Ultraviolet ", Media.ies.org, 2020. [En línea]. Disponible en: https://media.ies.org/docs/standards/IES%20CR-2-20-V1a-20200507.pdf. [Último acceso: 16 de junio de 2020]. [8]J. Bolton y C. Cotton, The ultraviolet disinfection handbook, 3rd ed. Denver, Colo.: American Water Works Association, 2008, pp. 13-33. [9]W. Kowalski, Ultraviolet Germicidal Irradiation Handbook, 5th ed. Berlin: Springer Berlin, 2014, pp. 8-9. [10]P. Aguirre, J. García y R. Mujeriego Sahuquillo, "Desinfección con cloro y luz UV en un proceso convencional de regeneración de agua", Ingeniería del agua, vol. 11, no. 1, p. 75, 2004. (shrink)

Artículos Naturaleza, carácter y violencia: derivas a partir de Schopenhauer. Nature, character and violence: roads from Schopenhauer. Grave, Crescenciano Sobre la posibilidad de un fundamento analógico y simbólico. Ensayo de hermenéutica analógica. About the possibility of an analogical and symbolic fundament. Essay of analogical hermeneutic.Maldonado, Rebeca Consideraciones biojurídicas sobre la vida en el embrión humano. Biojuridical considerations on life of the human embryo. Parra Tapia, Ivonne La Europa unificada según Leibniz: irenismo y política. A unified Europe according to Leibniz: irenism (...) and politics. Rensoli Laliga, Lourdes Repensar el "dilema" comunitarista-liberal en Venezuela. To rethink the communitarism-liberalism "dilemma" in Venezuela. Seoane C., Javier B. Una introducción a la doctrina platónica del alma. An introduction to the platonic doctrine of the soul. Suzzarini, Andrés De vuelta al tribuno. Back to the tribune. Terán Pimentel, Milagros Discusiones en torno a la reparación del daño moral. Discussions about the redress of pain and suffering. Vielma Mendoza, Yoleida Interdisciplinares El giro en la obra de Milan Kundera: un reflejo de la contemporaneidad. The turning on Milan Kundera´s work: a reflex of contemporaneity. Pérez Lo Presti, Alirio Aproximación histórica sobre el consumo de drogas en Venezuela. Historical approach about drug consumption in Venezuela. Salazar, Teresa Informaciones Índice acumulado. (shrink)

Designed as a companion to the study of apologetics and philosophy of religion, this pocket dictionary by C. Stephen Evans offers 300 entries covering terms, apologists, philosophers, movements, apologetic arguments and theologies.

C.S. Lewis was a major public intellectual in Britain, beginning from the late 1930s and continuing to his death in 1963. In both his non-fiction, especially The Abolition of Man, and his fiction, most importantly in That Hideous Strength, he offers a critique of rationalism and scientism that is often strikingly similar to those that Michael Oakeshott penned in the late 1940s and early 1950s. This essay examines the question to what extent this similarity is merely superficial, and to what (...) extent the two writers shared a similar basis for their views. Furthermore, it examines whether there is an actual thread of influence: had Oakeshott been reading Lewis before writing his critique of rationalism, and if so, to what extent did Lewis’s work inform Oakeshott’s? (shrink)

This PhD responds to a two fold problem with the philosophy of design and the practice of design. The philosophical problem is stated as the discrepancy between a dominant philosophical framework that orders the world according to eternal essences and the actual conditions of the world in which we exist: the conditions of becoming and of flux. Commencing with a critique of the western metaphysical tradition of statics this research project proposes that we need to find a way of describing (...) an evolutionary model of practice, and by so doing to provide a revitalised narration of process. Consequently, the PhD explores the meanings of process through a critical examination of an ensemble of projects created by the author. Within this framework, a number of questions are posed in order to explore the proposition of a process practice. These questions are: What is process? How does one think process? Indeed, how do we get to grasp change? What are the consequences of process thinking on the practices of design, their fields of operation, and their productions? And, how can the thematising of process contribute to the design of the constructed environment, as well as reconfigure the practices of design? This thematising of process is argued to involve a necessary address to the constitutive and interrelated characteristics of process: space/time, movement, change, form and matter. Such an address is also seen to problematise the status of the object, the paradigms of representation, the modes of creation, the economies of exchange, and the structures of community, and to offer a modality of practice which would re-imagine the forms of social exchange to offer an ethical alternative to the tyranny of supply and demand, and thereby reconfigure the potential for dwelling. Making an overview of the discourses and practices engaging with theories of becoming, this thesis argues that almost all of these re-inscribe statics and that consequently the practice of design seems to drag behind our understanding of the world. Through a meditation on dis/appearance, in which the dynamics of being and becoming and the restless ambiguity of the gap are examined, the work establishes a process vocabulary, and makes clear through a material practice, the domains of process thinking, its inclinations, and the kinds of operations and procedures that flourish there. Foregrounding the fertile character of process practice, the PhD then proceeds to introduce notions of the movement-form, the duration-form, the transformational-form, the geometry of encounter, and to argue for physical form as an in-movement poise. Advocating new modes of approach and of attentiveness, and demonstrating new generative methods, this PhD argues that process thinking is not simply an operational stance, but an ethical position that identifies a field of care, and that consequently the design practices be expanded by taking seriously the relationship between process thinking and place making. Thus, this thesis concludes by advocating a mode of place making which, rather than reproduce planned environments as systems of control, configures place as the discursive contested place of encounter and exchange. (shrink)

Why did the scientific revolution take place in the West and not in China or the Islamic world? How did humanity's progress in science and technology, which had been moving along at a relatively steady pace for tens of thousands of years, end up taking such an unprecedented leap? Subjecting the history of thought and technology to a novel interpretation based on the relationship between theory and practice, Ahmet Selami Çalışkan argues that the industrial revolution and modern science-and the scientific (...) revolution that preceded both-did not alone suffice to sort out the philosophical problems of their day or to produce the institutions of the modern age. Both required a new sort of human: Homo economicus faber. Tracing the historical emergence of this figure and its persistence in our own age, this book offers an innovative and holistic assessment of the economic, cultural, and political effects of centuries of interaction between East and West and their repercussions in our world today. (shrink)

Letters to Doubting Thomas is an exchange of letters between two characters on the existence of God; it provides a cumulative case for Theism (the belief that God exists). Chapter by chapter, theism is compared with Naturalism (roughly, the view that there is no God and that ultimate reality is physical reality), concluding that Theism (on balance) provides a better explanation of the world and human life than does Naturalism.

Multiple different understandings and uses exist of what granularity is and how to implement it, where the former influences success of the latter with regards to storing granular data and using granularity for reasoning over the data or information. We propose a taxonomy of types of granularity and discuss for each leaf type how the entities or instances relate within its granular level. Such unambiguous distinctions can guide a conceptual modeler to better distinguish between the types of granularity and the (...) software developer to improve on implementations of granularity. (shrink)