La forma i la lletra en Ramon Llull. Una breu introducció als elements visuals en l’obra lul·liana

RESUM: No ha estat fins fa poc temps que s’ha posat el focus d’atenció en la gran riquesa de l’obra lul·liana pel que fa al llenguatge visual, un element que va tenir un ampli desenvolupament al llarg del lul·lisme del Renaixement i del Barroc, però també en l’art contemporani. D’entrada, en les figures lul·lianes es troben elements que requereixen una reflexió: l’ús de formes i de lletres, i, en definitiva, la construcció d’una diagramàtica sobre la qual encara avui cal aplicar una catalogació i una interpretació més enllà de desentrellar-ne l’aplicabilitat o funcionalitat en relació amb cada text, aspectes que l’investigador A. Bonner ha estudiat a bastament, junt amb A. Soler

A Structural Explanation for Anti-Immigrant Sentiment

Scholarship argues that anti-immigrant sentiment originates at the individual-level, is evenly distributed within countries, and is primarily manifested in a single form as hostility toward the out-group. In A Structural Explanation for Anti-immigrant Sentiment, I challenge these three claims and propose a novel approach to the sociological understanding of inter-ethnic contention. My explanation for anti-immigrant sentiment builds upon prevailing theories within political sociology, which center on the role of the state (Evans et al. 1985; Scott 1998; Skocpol 1979). While scholars have long acknowledged the role of the state in the regulation of immigration flows and their incorporation (Brubaker 1992; Castles and Miller 1993; Geddes 2003; Lahav 2004; Massey et al. 2002; Messina 2007; Money 1999; Sassen 1996; 1999; Zolberg 2006), only limited research has examined the extent to which the state, through its regulations and institutions, may also affect public attitudes toward immigration. I argue that, as states establish the parameters for native-foreigner interaction, they play an active role in the establishment of inter-ethnic relations. I use a mixed methods research design that combines surveys, interviews, ethnographic fieldwork, and socio-demographic and policy estimates to examine the distribution of anti-immigrant sentiment across three Belgian and three Spanish regions. Using regions as units of analysis facilitates isolating the role of structural conditions in the manifestation of citizens' hostility. Three empirical chapters show that distinctive manifestations of anti-immigrant sentiment emerge in geographical enclaves with specific demographic, economic, political, and cultural characteristics. Findings from this research contribute to prevailing theories of anti-immigrant sentiment, and its relation to state regulation of immigration and integration. Moreover, I consider how current policies might be revised in light of these findings and I suggest new approaches to the regulation of multi-ethnic environments, as well as to the strengthening of social cohesion in these environments

A Structural Explanation for Anti-Immigrant Sentiment

Scholarship argues that anti-immigrant sentiment originates at the individual-level, is evenly distributed within countries, and is primarily manifested in a single form as hostility toward the out-group. In A Structural Explanation for Anti-immigrant Sentiment, I challenge these three claims and propose a novel approach to the sociological understanding of inter-ethnic contention. My explanation for anti-immigrant sentiment builds upon prevailing theories within political sociology, which center on the role of the state (Evans et al. 1985; Scott 1998; Skocpol 1979). While scholars have long acknowledged the role of the state in the regulation of immigration flows and their incorporation (Brubaker 1992; Castles and Miller 1993; Geddes 2003; Lahav 2004; Massey et al. 2002; Messina 2007; Money 1999; Sassen 1996; 1999; Zolberg 2006), only limited research has examined the extent to which the state, through its regulations and institutions, may also affect public attitudes toward immigration. I argue that, as states establish the parameters for native-foreigner interaction, they play an active role in the establishment of inter-ethnic relations. I use a mixed methods research design that combines surveys, interviews, ethnographic fieldwork, and socio-demographic and policy estimates to examine the distribution of anti-immigrant sentiment across three Belgian and three Spanish regions. Using regions as units of analysis facilitates isolating the role of structural conditions in the manifestation of citizens' hostility. Three empirical chapters show that distinctive manifestations of anti-immigrant sentiment emerge in geographical enclaves with specific demographic, economic, political, and cultural characteristics. Findings from this research contribute to prevailing theories of anti-immigrant sentiment, and its relation to state regulation of immigration and integration. Moreover, I consider how current policies might be revised in light of these findings and I suggest new approaches to the regulation of multi-ethnic environments, as well as to the strengthening of social cohesion in these environments

Developing an optical backscatter method for determining casein micelle particle size in heated milk

Altres ajuts: Acord transformatiu CRUE-CSICA plethora of different factors, such as heat treatment, pH, soluble calcium and phosphate concentrations, colloidal calcium phosphate, ionic strength, redox potential, etc., affect functionally of critical milk components such as casein micelles, fat globules and whey proteins. These physicochemical changes induce fat- or protein-protein interactions that would be associated to changes in particle size that might be revealed using light backscatter measurements. We hypothesized that inline, simple, low-cost light backscatter measurements might have the potential to provide functionally related information, representing an interesting opportunity for process control. Casein micelle particle size and near infrared light backscatter spectra were measured in milks heat treated at 80 and 90 °C and pH 6.3, 6.7 and 7.1 in order to obtain prediction models for estimating changes in casein micelle particle size during milk heat treatment. Light intensity was measured over a spectral range of 200-1100 nm using a simple optical backscatter sensor and was implemented into models for particle size predictions as a function of heat treatment temperature and pH. Models which included an exponential factor containing a ratio of two specific wavebands were found to improve R when compared to single wavelength models. The best model exhibited an R of 0.993 and SEP of 2.36 nm. The developed prediction models show promise for in-line monitoring of whey protein denaturation and casein micelle particle size

On trees with the same restricted U-polynomial and the Prouhet–Tarry–Escott problem

This paper focuses on the well-known problem due to Stanley of whether two non-isomorphic trees can have the same U-polynomial (or, equivalently, the same chromatic symmetric function). We consider the Uk-polynomial, which is a restricted version of U-polynomial, and construct, for any given kk, non-isomorphic trees with the same Uk-polynomial. These trees are constructed by encoding solutions of the Prouhet–Tarry–Escott problem. As a consequence, we find a new class of trees that are distinguished by the U-polynomial up to isomorphism.Peer ReviewedPostprint (author's final draft

On graphs with the same restricted U-polynomial and the U-polynomial for rooted graphs

In this abstract, we construct explicitly, for every k, pairs of non-isomorphic trees with the same restricted U-polynomial; by this we mean that the polynomials agree on terms with degree at most k. The construction is done purely in algebraic terms, after introducing and studying a generalization of the U-polynomial to rooted graphs.Peer ReviewedPostprint (author's final draft

Magdalena del Espíritu Santo. Testimonio biográfico de San Juan de la Cruz

Este artículo recupera el texto del manuscrito 12944/132 de la BNE, en el que la carmelita descalza Magdalena del Espíritu Santo (†1640) explica algunos aspectos de la vida y el carácter de su maestro espiritual y confesor, San Juan de la Cruz (1542-1591), que han servido de fuente para las biografías del místico. Destinataria del dibujo del Monte Carmelo de San Juan (BNE, mss/6296), Magdalena estuvo en contacto con el santo en Beas de Segura, donde esta profesó y vivió unos años, antes de trasladarse a Córdoba. El escrito de la carmelita, intitulado Noticias sobre la vida de San Juan de la Cruz, tiene dieciocho hojas y fue redactado en el siglo XVII. La monja mantuvo contacto directo con San Juan en la etapa en la que ejercía de maestro de almas en Andalucía y escribía sus obras mayores para trasladar su experiencia y doctrina a las carmelitas.