On the asymptotic expansion of the colored Jones polynomial for torus knots

In the asymptotic expansion of the hyperbolic specification of the colored Jones polynomial of torus knots, we identify different geometric contributions, in particular Chern-Simons invariant and Reidemeister torsion.

Singular integrals on Ahlfors-David regular subsets of the Heisenberg group

"Vegeu el resum a l'inici del document del fitxer adjunt."

I si deixem de parlar de preservació digital? Variacions sobre un tema de David Rosenthal, amb un poutpourri final amb la CDLib Orchestra

La preservació digital de la que parla la nostra literatura professional està plena de mites que pensem que s'han d'anar tombant un darrera l'altre, en aquesta presentació us els mencionarem.

La Llengua de l'heroi: notes sobre la llengua del segle XX a partir de les traduccions catalanes de David Copperfield de Charles Dickens

Estudi comparatiu de les dues traduccions catalanes publicades de David Copperfield de Charles Dickens. La primera de Josep Carner feta l’any 1930 però publicada el 1964 i la segona obra deJoan Sellent del 2003. L’anàlisi mostra que ambdues traduccions, excel·lents, reflecteixen una evolució singular i força accelerada del model de llengua que els traductors fan arribar al seu públic, que és reflex de la complexa història de la llengua catalana del segle xx, que encara s’had’escriure.

Bradykinin, but not muscarinic, inhibition of M-current in rat sympathetic ganglion neurons involves phospholipase C-β4

Rat superior cervical ganglion (SCG) neurons express low-threshold noninactivating M-type potassium channels (I-K(M)), which can be inhibited by activation of M-1 muscarinic receptors (M-1 mAChR) and bradykinin (BK) B-2 receptors. Inhibition by the M1 mAChR agonist oxotremorine methiodide (Oxo-M) is mediated, at least in part, by the pertussis toxin-insensitive G-protein G alpha (q) (Caulfield et al., 1994; Haley et al., 1998a), whereas BK inhibition involves G alpha (q) and/or G alpha (11) (Jones et al., 1995). G alpha (q) and G alpha (11) can stimulate phospholipase C-beta (PLC-beta), raising the possibility that PLC is involved in I-K(M) inhibition by Oxo-M and BK. RT-PCR and antibody staining confirmed the presence of PLC-beta1, - beta2, - beta3, and - beta4 in rat SCG. We have tested the role of two PLC isoforms (PLC-beta1 and PLC-beta4) using antisense-expression constructs. Antisense constructs, consisting of the cytomegalovirus promoter driving antisense cRNA corresponding to the 3'-untranslated regions of PLC-beta1 and PLC-beta4, were injected into the nucleus of dissociated SCG neurons. Injected cells showed reduced antibody staining for the relevant PLC-beta isoform when compared to uninjected cells 48 hr later. BK inhibition of I-K(M) was significantly reduced 48 hr after injection of the PLC-beta4, but not the PLC-beta1, antisense-encoding plasmid. Neither PLC-beta antisense altered M-1 mAChR inhibition by Oxo-M. These data support the conclusion of Cruzblanca et al. (1998) that BK, but not M-1 mAChR, inhibition of I-K(M) involves PLC and extends this finding by indicating that PLC-beta4 is involved.

AMADEUS: advanced manipulation for deep underwater sampling

AMADEUS is a dexterous subsea robot hand incorporating force and slip contact sensing, using fluid filled tentacles for fingers. Hydraulic pressure variations in each of three flexible tubes (bellows) in each finger create a bending moment, and consequent motion or increase in contact force during grasping. Such fingers have inherent passive compliance, no moving parts, and are naturally depth pressure-compensated, making them ideal for reliable use in the deep ocean. In addition to the mechanical design, development of the hand has also considered closed loop finger position and force control, coordinated finger motion for grasping, force and slip sensor development/signal processing, and reactive world modeling/planning for supervisory `blind grasping¿. Initially, the application focus is for marine science tasks, but broader roles in offshore oil and gas, salvage, and military use are foreseen. Phase I of the project is complete, with the construction of a first prototype. Phase I1 is now underway, to deploy the hand from an underwater robot arm, and carry out wet trials with users.

AMADEUS: advanced manipulation for deep underwater sampling

AMADEUS is a dexterous subsea robot hand incorporating force and slip contact sensing, using fluid filled tentacles for fingers. Hydraulic pressure variations in each of three flexible tubes (bellows) in each finger create a bending moment, and consequent motion or increase in contact force during grasping. Such fingers have inherent passive compliance, no moving parts, and are naturally depth pressure-compensated, making them ideal for reliable use in the deep ocean. In addition to the mechanical design, development of the hand has also considered closed loop finger position and force control, coordinated finger motion for grasping, force and slip sensor development/signal processing, and reactive world modeling/planning for supervisory `blind grasping¿. Initially, the application focus is for marine science tasks, but broader roles in offshore oil and gas, salvage, and military use are foreseen. Phase I of the project is complete, with the construction of a first prototype. Phase I1 is now underway, to deploy the hand from an underwater robot arm, and carry out wet trials with users.

Dynamic properties of Lennard Jones fluids and liquid metals

The dependence of the dynamic properties of liquid metals and Lennard-Jones fluids on the characteristics of the interaction potentials is analyzed. Molecular-dynamics simulations of liquids in analogous conditions but assuming that their particles interact either through a Lennard-Jones or a liquid-metal potential were carried out. The Lennard-Jones potentials were chosen so that both the effective size of the particles and the depth of the potential well were very close to those of the liquid-metal potentials. In order to investigate the extent to which the dynamic properties of liquids depend on the short-range attractive interactions as well as on the softness of the potential cores, molecular-dynamics simulations of the same systems but assuming purely repulsive interactions with the same potential cores were also performed. The study includes both singleparticle dynamic properties, such as the velocity autocorrelation functions, and collective dynamic properties, such as the intermediate scattering funcfunctions, and collective dynamic properties, such as the intermediate scattering functions, the dynamic structure factors, the longitudinal and transverse current correlations, and the transport coefficients.

Surveillance of adenoviruses and noroviruses in European recreational waters

Exposure to human pathogenic viruses in recreational waters has been shown to cause disease outbreaks. In the context of Article 14 of the revised European Bathing Waters Directive 2006/7/EC (rBWD, CEU, 2006) a Europe-wide surveillance study was carried out to determine the frequency of occurrence of two human enteric viruses in recreational waters. Adenoviruses were selected based on their near-universal shedding and environmental survival, and noroviruses (NoV) selected as being the most prevalent gastroenteritis agent worldwide. Concentration of marine and freshwater samples was done by adsorption/elution followed by molecular detection by (RT)-PCR. Out of 1410 samples, 553 (39.2%) were positive for one or more of the target viruses. Adenoviruses, detected in 36.4% of samples, were more prevalent than noroviruses (9.4%), with 3.5% GI and 6.2% GII, some samples being positive for both GI and GII. Of 513 human adenovirus-positive samples, 63 (12.3%) were also norovirus-positive, whereas 69 (7.7%) norovirus-positive samples were adenovirus-negative. More freshwater samples than marine water samples were virus-positive. Out of a small selection of samples tested for adenovirus infectivity, approximately one-quarter were positive. Sixty percent of 132 nested-PCR adenovirus-positive samples analysed by quantitative PCR gave a mean value of over 3000 genome copies per L of water. The simultaneous detection of infectious adenovirus and of adenovirus and NoV by (RT)PCR suggests that the presence of infectious viruses in recreational waters may constitute a public health risk upon exposure. These studies support the case for considering adenoviruses as an indicator of bathing water quality.

Equilibrium points and central configurations for the Lennard-Jones 2-and 3-body problems

Abstract. In this paper we study the relative equilibria and their stability for a system of three point particles moving under the action of a Lennard{Jones potential. A central con guration is a special position of the particles where the position and acceleration vectors of each particle are proportional, and the constant of proportionality is the same for all particles. Since the Lennard{Jones potential depends only on the mutual distances among the particles, it is invariant under rotations. In a rotating frame the orbits coming from central con gurations become equilibrium points, the relative equilibria. Due to the form of the potential, the relative equilibria depend on the size of the system, that is, depend strongly of the momentum of inertia I. In this work we characterize the relative equilibria, we nd the bifurcation values of I for which the number of relative equilibria is changing, we also analyze the stability of the relative equilibria.

Programa de Càlcul Nutricional Professional (PCN Pro)

Aplicació de càlcul nutricional que permet les següents funcionalitats: Gestió d’Individus/Pacients permet organitzar els pacients en carpetes i subcarpetes, podent incorporar un històric de dades antropomètriques i dietètic i calcular els següents dades: IMC (Índex de Massa Corporal), Índex Cintura / Maluc, Estima el pes ideal orientatiu, Estimació de Despesa Energètica per: Harris-Benedict, FAO-OMS, Mifflin-St. Jeor. En base a la informació introduïda a la pestanya Activitat Física estima també la despesa energètica tenint en compte l’activitat física realitzada per l’individu (permet estimar la despesa energètica per 605 activitats).Estimació de necessitats energètiques en malalts per Long et al. i Ireton-Jones amb la base del càlcul del Metabolisme Basal de Harris-Benedict. Introduint els plecs (Plec Pectoral, Plec Bíceps, Plec Abdominal, Plec Supraespinal, Plec Cuixa anterior, Plec Cama medial, Plec Subescapular, Plec Tricipital), els diàmetres (Diàmetre Antero-Posterior Tòrax, Diàmetre Sagital, Diàmetre Húmer, Diàmetre Fèmur, Diàmetre Biacromial, Diàmetre Transversal Tòrax, Diàmetre Biileocrestal) i els perímetres (Perímetre Braç flexionat, Perímetre Braç, Perímetre Canell, Perímetre Cuixa, Perímetre Cama, Perímetre Tòrax) el programa és capaç de calcular el % de greix, massa òssia, massa muscular i massa residual per diferents fórmules (% Gas Yuhasz, % Gras Faulkner, % Gras Siri, % Gras Brozek, Distribució corporal de Drinkwater). També calcula el perímetre muscular del braç i la cama. També calcula el Pes Objectiu en relació a un % Greix objectiu, calculant quin pes hauria de tenir el pacient per un % de Greix donat.

Mano a mano con David Roas

El escritor David Roas acaba de publicar su novela La estrategia del koala (Barcelona, Candaya, 2013, 234 pp.). Le pedimos que nos desvele alguno de sus entresijos, y la novela se vuelve aún más sugerente. En alguna de sus respuestas nos parece seguir escuchando a su personaje Marcos Fontana

La (De)construcció de la masculinitat en el teatre de David Mamet

La reflexió efectuada per la teoria contemporania sobre la representació del genere es materialitza d'una manera privilegiada en el teatre. Esta clar que la perforrnativitat intrinseca del fenomen teatral és un espai idoni per qüestionar la construcció de la representació generica. No hi ha dubte que I'especificitat comunicativa del teatre es troba en la «fisicalitat)): I'element corporal té una importancia clau, ja síguí per la presencia física de I'equip actoral i del públic i per la condició efímera (el fet que cap representació no és igual a cap altra). Judith Butler ha escrit sobre el fet que els actes que constitueixen el genere tenen un paral.lelisrne en les actes performatius dels contextos teatrals. La identitat de genere no és una identitat completa, sinó que és una identitat que es construeix, una realització performativa en la qual creiern, i que representem corn si fos una creenca, com si fos una qüestió de fe. Per tant, les possibilitats de transformació del genere es troben en la relació arbitraria d'aquests actes i en la possibilitat d'un altre tipus de repetició (Butler, 1990: 33). L'obra del dramaturg, director, guionista i assagista nord-america David Marnet pot considerar-se una reflexió sobre la construcció de la masculinitat i, de retruc, de les tensions i reptes a que la masculinitat es troba sotmesa en el tornbant de segle. 1. ES

Adaptació cinematogràfica de la novel·la Cuatro amigos de David Trueba

Aquest treball és una adaptació d'una obra literària a guió cinematogràfic d'un llargmetratge.