Alternative search strategies for a BSM resonance fitting the ATLAS diboson excess

We study an s-channel resonance R as a viable candidate to fit the diboson excess reported by ATLAS. We compute the contribution of the similar to 2 TeV resonance R to semileptonic and leptonic final states at the 13 TeV LHC. To explain the absence of an excess in the semileptonic channel, we explore the possibility where the particle R decays to additional light scalars X, X or X, Y. A modified analysis strategy has been proposed to study the three-particle final state of the resonance decay and to identify decay channels of X. Associated production of R with gauge bosons has been studied in detail to identify the production mechanism of R. We construct comprehensive categories for vector and scalar beyond-standard-model particles which may play the role of particles R, X, Y and find alternate channels to fix the new couplings and search for these particles.

Regulation of Growth, Cell Shape, Cell Division, and Gene Expression by Second Messengers (p)ppGpp and Cyclic Di-GMP in Mycobacterium smegmatis

The alarmone (p)ppGpp regulates transcription, translation, replication, virulence, lipid synthesis, antibiotic sensitivity, biofilm formation, and other functions in bacteria. Signaling nucleotide cyclic di-GMP (c-di-GMP) regulates biofilm formation, motility, virulence, the cell cycle, and other functions. In Mycobacterium smegmatis, both (p) ppGpp and c-di-GMP are synthesized and degraded by bifunctional proteins Rel(Msm) and DcpA, encoded by rel(Msm) and dcpA genes, respectively. We have previously shown that the Delta rel(Msm) and Delta dcpA knockout strains are antibiotic resistant and defective in biofilm formation, show altered cell surface properties, and have reduced levels of glycopeptidolipids and polar lipids in their cell wall (K. R. Gupta, S. Kasetty, and D. Chatterji, Appl Environ Microbiol 81:2571-2578, 2015, http://dx.doi.org/10.1128/AEM.03999-14). In this work, we have explored the phenotypes that are affected by both (p) ppGpp and c-di-GMP in mycobacteria. We have shown that both (p) ppGpp and c-di-GMP are needed to maintain the proper growth rate under stress conditions such as carbon deprivation and cold shock. Scanning electron microscopy showed that low levels of these second messengers result in elongated cells, while high levels reduce the cell length and embed the cells in a biofilm-like matrix. Fluorescence microscopy revealed that the elongated Delta rel(Msm) and Delta dcpA cells are multinucleate, while transmission electron microscopy showed that the elongated cells are multiseptate. Gene expression analysis also showed that genes belonging to functional categories such as virulence, detoxification, lipid metabolism, and cell-wall-related processes were differentially expressed. Our results suggests that both (p) ppGpp and c-di-GMP affect some common phenotypes in M. smegmatis, thus raising a possibility of cross talk between these two second messengers in mycobacteria. IMPORTANCE Our work has expanded the horizon of (p) ppGpp and c-di-GMP signaling in Gram-positive bacteria. We have come across a novel observation that M. smegmatis needs (p) ppGpp and c-di-GMP for cold tolerance. We had previously shown that the Delta rel(Msm) and Delta dcpA strains are defective in biofilm formation. In this work, the overproduction of (p) ppGpp and c-di-GMP encased M. smegmatis in a biofilm-like matrix, which shows that both (p) ppGpp and c-di-GMP are needed for biofilm formation. The regulation of cell length and cell division by (p) ppGpp was known in mycobacteria, but our work shows that c-di-GMP also affects the cell size and cell division in mycobacteria. This is perhaps the first report of c-di-GMP regulating cell division in mycobacteria.

DESIGN REQUIREMENTS FOR DIRECT SUPERCRITICAL CARBON DIOXIDE RECEIVER DEVELOPMENT AND TESTING

This paper establishes the design requirements for the development and testing of direct supercritical carbon dioxide (sCO2) solar receivers. Current design considerations are based on the ASME Boiler and Pressure Vessel Code (BPVC). Section I (BPVC) considers typical boilers/superheaters (i.e. fired pressure vessels) which work under a constant low heat flux. Section VIII (BPVC) considers pressure vessels with operating pressures above 15 psig 2 bar] (i.e. unfired pressure vessels). Section III, Division I - Subsection NH (BPVC) considers a more detailed stress calculation, compared to Section I and Section VIII, and requires a creep-fatigue analysis. The main drawback from using the BPVC exclusively is the large safety requirements developed for nuclear power applications. As a result, a new set of requirements is needed to perform detailed thermal-structural analyses of solar thermal receivers subjected to a spatially-varying, high-intensity heat flux. The last design requirements document of this kind was an interim Sandia report developed in 1979 (SAND79-8183), but it only addresses some of the technical challenges in early-stage steam and molten-salt solar receivers but not the use of sCO2 receivers. This paper presents a combination of the ASME BPVC and ASME B31.1 Code modified appropriately to achieve the reliability requirements in sCO(2) solar power systems. There are five main categories in this requirements document: Operation and Safety, Materials and Manufacturing, Instrumentation, Maintenance and Environmental, and General requirements. This paper also includes the modeling guidelines and input parameters required in computational fluid dynamics and structural analyses utilizing ANSYS Fluent, ANSYS Mechanical, and nCode Design Life. The main purpose of this document is to serve as a reference and guideline for design and testing requirements, as well as to address the technical challenges and provide initial parameters for the computational models that will be employed for the development of sCO(2) receivers.

La cuesti��n de los fundamentos en la ��tica de Lonergan

Resumen: En este art��culo se explica c��mo a partir del m��todo trascendental de Lonergan surge una comprensi��n de la ��tica c��mo ��tica existencial, la cual nos invita a dejar a un lado las categor��as metaf��sicas-abstractas y reflexionar ��ticamente usando categor��as que surjan de los actos de nuestra conciencia. La conciencia moral se presenta distintiva en cuanto a la decisi��n, inclusiva en cuanto que integra los niveles del entender y del juzgar y elevada en cuanto que est�� abierta a la posibilidad de una integraci��n superior, puesto que la noci��n trascendental de valor puede ser enriquecida intr��nsecamente con la experiencia religiosa de estar enamorado de un modo irrestricto.La explicitaci��n de los fundamentos a partir del m��todo trascendental permite tener en cuenta la realidad del hombre como ser hist��rico en devenir e integra la experiencia moral y religiosa a la comprensi��n del actuar ��tico. De este modo la reflexi��n ��tica surge a partir de la historia vividaen la cual se manifiesta el hacerse a s�� mismo de los sujetos y la auto-constituci��n de lavida moral de una comunidad o de un pueblo.

Derechos subjetivos y persona humana

Resumen: El prop��sito de este trabajo es definir con precisi��n el concepto de derecho subjetivo y examinar a cu��l de las categor��as aristot��licas pertenece para, sobre la base de estas precisiones, establecer en qu�� sentido es v��lido afirmar que los llamados derechos humanos son derechos subjetivos atribuibles con inherencia intr��nseca a la persona humana.

Medici��n y realidad : reflexiones para una econom��a realista

Resumen: El trabajo constituye una presentaci��n general del an��lisis de la circulaci��n econ��mica elaborado por B. Lonergan quien, desde presupuestos filos��ficos diferentes de los impl��citos en la teor��a econ��mica dominante, desarroll�� una aproximaci��n sist��mica a la problem��tica econ��mica que revela ciertas insuficiencias en las mediciones vigentes. En efecto, las variables de inter��s se ven modificadas cuando cambian las categor��as fundamentales de an��lisis. En la primera secci��n se exponen los supuestos gnoseol��gicos y epistemol��gicos realistas desarrollados por este autor. Estos fundamentos permiten reconocer con mayor claridad las bases endebles de los abordajes actuales. Tras una breve enumeraci��n de algunas cr��ticas al paradigma vigente de parte de diversos autores, se exponen las l��neas generales del esquema propuesto por Lonergan.

Pattern Recognition With Weighted Complex Networks

In this paper we introduce a weighted complex networks model to investigate and recognize structures of patterns. The regular treating in pattern recognition models is to describe each pattern as a high-dimensional vector which however is insufficient to express the structural information. Thus, a number of methods are developed to extract the structural information, such as different feature extraction algorithms used in pre-processing steps, or the local receptive fields in convolutional networks. In our model, each pattern is attributed to a weighted complex network, whose topology represents the structure of that pattern. Based upon the training samples, we get several prototypal complex networks which could stand for the general structural characteristics of patterns in different categories. We use these prototypal networks to recognize the unknown patterns. It is an attempt to use complex networks in pattern recognition, and our result shows the potential for real-world pattern recognition. A spatial parameter is introduced to get the optimal recognition accuracy, and it remains constant insensitive to the amount of training samples. We have discussed the interesting properties of the prototypal networks. An approximate linear relation is found between the strength and color of vertexes, in which we could compare the structural difference between each category. We have visualized these prototypal networks to show that their topology indeed represents the common characteristics of patterns. We have also shown that the asymmetric strength distribution in these prototypal networks brings high robustness for recognition. Our study may cast a light on understanding the mechanism of the biologic neuronal systems in object recognition as well.

Migraci��n y misi��n : una mirada desde Aparecida

Resumen: Considerando la preocupaci��n de los obispos latinoamericanos y del Caribe en la V Conferencia General de Aparecida sobre los migrantes como nuevos actores sociales destinatarios de la evangelizaci��n y futuros misioneros, se hace una reflexi��n interdisciplinaria, entre la teolog��a y las ciencias sociales, sobre el trabajador migrante como lugar teol��gico. Poniendo en equivalencia las categor��as de ��xodo y migraci��n, se intenta hacer manifiesto el camino del esfuerzo del trabajador migrante que, en tiempos de globalizaci��n, ve en el trabajo una v��a de movilidad social ascendente desde la pobreza del ser a la dignidad del trabajador asalariado como creatura de Dios. Como ejemplo de solidaridad, de trabajadores misionando en funci��n de trabajadores, se presenta el caso de la integraci��n regional sindical en red, y sus modos de irrupci��n en el mundo de la determinaci��n

La Celestina en escenarios argentinos : observaciones comparatistas sobre las adaptaciones de Jorge Goldenberg (1993) y Daniel Su��rez Marzal (2007)

Integran este n��mero de la revista ponencias presentadas en Studia Hispanica Medievalia VIII: Actas de las IX Jornadas Internacionales de Literatura Espa��ola Medieval, 2008, y de Homenaje al Quinto Centenario de Amadis de Gaula.

Consideraciones sobre los relieves del �����rbol sagrado��� asirio en el Palacio Noroeste de A����urnasirpal II (Nimrud)

Resumen: En el presente an��lisis interpretaremos los relieves asirios del �����rbol sagrado��� conservados en el Palacio Noroeste de A����urnasirpal II, considerando las pr��cticas de representaci��n desarrolladas en el Cercano Oriente antiguo, as�� como las categor��as de espacios ordenado y ca��tico utilizadas en el campo de la historia de las religiones comparadas.

Apuntes de soteriolog��a

El autor ofrece algunas ���notas��� de un panorama soteriol��gico desde distintos autores, con la finalidad de ubicar al lector en la problem��tica moderna. El alcance pastoral de las categor��as soteriol��gicas se explica porque en ellas se trasmite una determinada imagen de Dios. As�� por ejemplo, en el siglo XIX y parte del siglo XX la imagen de la satisfacci��n cruenta o la del sacrificio entendido como derramamiento de sangre, dominan la escena de toda la predicaci��n de Cuaresma y Pascua. Con sentido teol��gico y pastoral, la presentaci��n se limita a los n��cleos esenciales de la doctrina contenida en las categor��as soteriol��gicas seleccionadas.

La integraci��n del saber en la obra de Jacques Maritain

Resumen: La cuesti��n sobre la integraci��n del saber es un tema particularmente relevante en el panorama de la epistemolog��a actual. Nuestra ��poca promueve un clima favorable al di��logo, pero con resultados de valor desparejo. Uno de los grandes intelectuales cristianos del siglo XX, Jacques Maritain, dedic�� una parte importante de su obra a reflexionar sobre estas cuestiones. Siguiendo su lema distinguir para unir este trabajo se despliega en dos partes: la primera referida al momento de distinci��n entre las disciplinas, y la segunda al momento de su (relativa) unificaci��n. En esta entrega se avanza a partir de las intuiciones primordiales de la sabidur��a metaf��sica y las grandes categor��as del conocimiento: el saber en sentido anal��gico, la filosof��a, la ciencia y la teolog��a. Maritain introduce el criterio de divisi��n a partir de lo especulativo y lo pr��ctico. Luego, en el orden especulativo, recurre a la doctrina tradicional sobre la abstracci��n y sus formas, esforz��ndose por adaptar los principios que la inspiran a la compleja tem��tica de la ciencia actual. Se cierra con una consideraci��n acerca de las modalidades del saber pr��ctico. Este movimiento de distinci��n ser�� completado en la segunda parte del trabajo a partir de las exigencias de complementaci��n de las disciplinas involucradas.

Slightly slanting impact on an elastic cantilever column-an experimental study

Experiments concerning slightly slanting impact between a flat-ended rigid body and a flat-ended elastic cantilever column with a rectangular cross-section have been performed. The experimental results are compared with the theoretical ones. The small angle of incidence was measured by using an optical method. The impact process was studied by using a split disc for the rigid body, with the two halves bonded together and electrically insulated from each other. The disc and the column were parts of an electric circuit. Different contact states could be distinguished according to different voltage levels. Reasonably good agreement between theory and experiment was found. Thus, the impact duration has its minimum under perfectly axial impact as predicted by the theory. Also, the predicted process of alternating line and surface contact was observed. Furthermore, the existence of a small critical angle of incidence was verified. This critical angle of incidence divides the impact processes into two categories: (1) The rigid body and the column end come into surface contact before separation. (2) They separate without surface contact. Comparison of axial strains between theory and experiment shows good agreement.

Demand for Cultural Heritage

Prepared for the Handbook of the Economics of Cultural Heritage. Forthcoming in Edgard Elgar Publisher. Anna Mignosa and Ilde Rizzo (editors)

Observar el movimiento : construcci��n del formato de campo ���el salto en psicomotricidad durante el tercer a��o de vida���

[Es]Este art��culo repasa los hitos m��s significativos de la elaboraci��n del instrumento de observaci��n del formato de campo ���el salto en psicomotricidad durante el tercer a��o de vida���. La aplicaci��n de la Metodolog��a Observacional a la Pr��ctica Psicomotriz Aucouturier (PPA)es posible ya que existe una doble complementariedad entre ambas: la metodolog��a observacional es la ��nica que puede evaluar y explicar, y no s��lo describir, el complejo flujo de actividad psicomotriz infantil o expresividad psicomotriz y la pr��ctica psicomotriz aucouturier, a su vez, cumple el perfil ��ptimo de la metodolog��a observacional. El proceso metodol��gico observacional impone entre sus condiciones la sistematizaci��n del instrumento de observaci��n; lo que comienza siendo un sistema de categor��as en base a la propuesta observacional de la propia PPA, termina siendo un formato de campo al servicio del objetivo inicial de la investigaci��n, que es la evaluaci��n del comportamiento psicomotor infantil.