Differential growth of wrinkled biofilms

Biofilms are antibiotic-resistant bacterial aggregates that grow on moist surfaces and can trigger hospital-acquired infections. They provide a classical example in biology where the dynamics of cellular communities may be observed and studied. Gene expression regulates cell division and differentiation, which affect the biofilm architecture. Mechanical and chemical processes shape the resulting structure. We gain insight into the interplay between cellular and mechanical processes during biofilm development on air-agar interfaces by means of a hybrid model. Cellular behavior is governed by stochastic rules informed by a cascade of concentration fields for nutrients, waste and autoinducers. Cellular differentiation and death alter the structure and the mechanical properties of the biofilm, which is deformed according to Foppl-Von Karman equations informed by cellular processes and the interaction with the substratum. Stiffness gradients due to growth and swelling produce wrinkle branching. We are able to reproduce wrinkled structures often formed by biofilms on air-agar interfaces, as well as spatial distributions of differentiated cells commonly observed with B. subtilis.Comment: 19 pages, 13 figure

The Pluriliteracies Teaching for Learning approach (PTL) and its potentialities in the English as a Foreign Language (EFL) classroom in Secondary Education.

The teaching of English as a foreign language (EFL) has assumed a prominent role in recent decades, resulting in the proliferation of bilingual programs within compulsory secondary education. However, the successful implementation of such programs often relies on methodologies and disciplines that prioritize content integration within the classroom. Consequently, it is necessary to advocate for the adoption of different approaches that prioritize English language learning and teaching as the primary focal point. It is proposed, therefore, in this master's thesis, the planning and future implementation of a didactic unit that follows the premises of the Pluriliteracies Approach to Teaching for Learning (PTL) in the context of English teaching within Compulsory Secondary Education.La enseñanza del inglés como lengua extranjera (ILE) ha asumido un papel destacado en las últimas décadas, dando lugar a la proliferación de programas bilingües dentro de la educación secundaria obligatoria. Sin embargo, el éxito de la implantación de dichos programas depende a menudo de metodologías y disciplinas que priorizan la integración de contenidos dentro del aula. En consecuencia, parece pertinente abogar adoptar algunos enfoques cuyos fundamentos puedan transponerse para la mejora del proceso de aprendizaje y enseñanza de la lengua inglesa. Se propone, por tanto, en esta tesis de máster, la planificación de una unidad didáctica que siga las premisas del enfoque Pluriliteracies Approach to Teaching for Learning (PTL) en el contexto de la enseñanza del inglés dentro de la Educación Secundaria Obligatoria.Departamento de Didáctica de la Lengua y LiteraturaMáster en Profesor de Educación Secundaria Obligatoria y Bachillerato, Formación Profesional y Enseñanzas de Idioma

“Everything is simple if you arrange the facts methodically": A Narratological Approach to Agatha Christie's Fictional Mysteries

Detective novels are one of the most popular literary genres in the English language. However, although several writers have contributed to this literary formula, the most prominent author is undoubtedly Agatha Mary Clarissa Christie (1890 - 1976). Christie is a best-selling crime and mystery author who is often regarded as the genre's finest exponent. This Bachelor’s Thesis is largely concerned with evaluating detective fiction, especially the subgenres of thriller and whodunit, in two of Christie’s best-known masterpieces: The Murder of Roger Ackroyd (1926) and And Then There Were None (1939). An in-depth examination of both works is provided here in order to prove the representation of both subgenres in Christie’s ouvre and to contrast their differences, as well as to determine which typology prevails in each caseLas novelas detectivescas son uno de los géneros literarios más populares en lengua inglesa. Sin embargo, aunque diferentes escritores han contribuido a este formato literario, la autora más destacada es sin duda Agatha Mary Clarissa Christie (1890 - 1976). Christie es una autora de best-sellers de crimen y misterio, considerada el mejor exponente del género. Este proyecto se encarga en gran medida de evaluar la ficción detectivesca, especialmente los subgéneros thriller y whodunit, en dos conocidas novelas de esta autora: El asesinato de Roger Ackroyd (1926) y Y no quedó ninguno (1939). Se ofrece un análisis en profundidad de ambas obras para demostrar la presencia de ambos subgéneros en la producción novelística de Agatha Christie y contrastar sus diferencias, así como para determinar qué tipología prevalece en cada caso.Departamento de Filología InglesaGrado en Estudios Inglese

Desarrollo y construcción de recicladora de ácido poliláctico (PLA) destinada a la impresión 3

The project given to Team D of the 2018 Fall EPS group was to develop a machine that would recycle old 3D printed parts, support structures, and failed prints into new filament to use in a 3D printer. The main reason why this project was carried out was that the company Kaplock B.V. produces an excess of PLA waste. To solve this issue, the team created a recycler that reduces the waste produced by the company. This was an important solution because it would allow Kaplock B.V. to save money and create a circular lifecycle for the PLA. The machine that Team D created receives PLA in the form of old prints, failed prints, or support structures. The recycler then crushes the parts into smaller pieces, so the PLA can be melted into liquid. This liquid plastic is then pushed through a nozzle to ensure a correct diameter that meets industry standards. The final step in the process is to coil the filament onto a spool so it can be reused in a 3D printer.El proyecto llevado a cabo durante el pasado otoño por el Grupo D del EPS Programme consiste en el desarrollo de una máquina capaz de reciclar impresiones 3D erróneas. La principal razón por la que este proyecto se ha llevado a cabo es el excesivo consumo que la compañía Kaplock tiene de PLA. Esta recicladora es una gran alternativa puesto que la compañía podría ahorrar dinero y crear un ciclo de vida circular para el PLA. El dispositivo recibe los elementos plásticos que se quiere reciclar, los tritura en pequeñas piezas, lo funde a estado líquido y este líquido se extruye a través de una boquilla creando un nuevo filamento. Por último, el PLA se vuelve a enrollar en una bobina que puede ser utilizada de nuevo.Departamento de Química AnalíticaGrado en Ingeniería Mecánic

El debate sobre la imagen en la España del siglo XV: judíos, cristianos y conversos

This article analizes the polemic on religious images in Spain during the XVth century, and edits two nuclear texts for its reconstruction: two chapters from the apologetic works of Fr. Alonso de Espina and Pablo de Santa Maria. These texts represent opposite attitudes toward the "image problem" in a moment when images became a major issue of the religious conflict between jews, "conversos" and old christians.Este artículo analiza la polémica de la imagen religiosa en la España del siglo XV y edita dos textos fundamentales para su reconstrucción: sendos capítulos apologéticos de las obras del fray Alonso de Espina y del converso Pablo de Santa María, los cuales demuestran la ausencia de un criterio homogéneo en un momento en el que las imágenes jugaron un papel importante en el enfrentamiento religioso

Castillos y fortalezas del reino [Manuscritos]

Copia del párrafo dedicado a Antequera que aparece en las páginas 16 y 17 del libro: "Castillos y fortalezas del reino" de Julián Paz Espeso, 1868-1942, de la Revista de Archivos, Bibliotecas y Museos, Madrid, 1914