Top and bottom tensor couplings from a color octet scalar

We compute the one-loop contributions from a color octet scalar to the tensor anomalous couplings of top and bottom quarks to gluons, photons and W bosons. We use known constraints on the parameters of the model to compare the predicted size of these couplings with existing phenomenological constraints.Comment: References added, matches accepted version for publicatio

Filosofía para no filósofos

-¿Quiénes son los no filósofos y qué es la filosofía? Contestar a la pregunta sobre quiénes no son filósofos es relativamente fácil, y la respuesta es simple: son los que no estudiaron filosofía, quienes no poseen el título académico de filósofo. En este sentido, resulta casi un hecho que pocos hombres o mujeres sean filósofos o filósofas, pero esto no es necesariamente así. En el presente trabajo se da cuenta de la labor de la filosofía fuera de la academis, es decir, en el transcurrir diario

1984: A Reality for Soviet Citizens

Many countries have fallen victim to tyrannical leaders in the past. For example, Joseph Stalin had the Soviet Union under his grip for the longest time. His rule did not end until his death. In George Orwell’s novel, 1984, the country of Oceania was being controlled by Big Brother with the help of the Party. While being somewhat different, both the Soviet Union under Stalin and Oceania share incredible similarities

Electro-oxidacion de fenol en una columna de burbujeo de flujo paralelo descendente

TESIS DOCTORALIn the context of water remediation, advanced oxidation processes have been proven to be an effective solution. In most of the cases, however, the reaction systems are usually highly expensive, because of the addition of chemical substances or energy consumption. This usually constrains their application at an industrial scale. This has motivated several researchers to develop technologies able not only to intensify the processes but able also to increase the sustainability of the whole process. In this sense, this work aimed to assess a relatively novel technology, a Downflow Bubble Column Electrochemical Reactor (DBCER), in the mineralization of a rather typical organic pollutant, phenol. The studied variables were: current density (20-60 mA/cm2), electrolyte concentration (0-0.01 M), recirculation of the liquid phase (4.7 and 6 L/min) and pH (3 and 7). The response variables were total organic carbon (TOC), phenol and by-products concentration, oxidant species concentration (O2, H2O2 and O3). Some hydrodynamic parameters and volumetric mass transfer coefficient were also determined, such as the bubble diameter and volume fraction of gas. The highest mineralization degree was around 75 % under pH 3, 60 mA/cm2, 4.7 L/min and an electrolyte concentration of 0.05 M. Under these conditions, it was figured out that the phenol oxidation occurs mainly by ozone attack and the main remaining compound was oxalic acid. Although at pH 7 the mineralization degree was lower than at pH 3, it was demonstrated by a biotoxicity study on Cyprinus carpio that the original toxicity was significantly decreased. Thus, it was demonstrated that the DBCER can be applied at a pre-pilot scale, in the electro-oxidation process, in which in-situ generation of O2, H2O2 and O3. Because of the unique design of this reactor, the electrogenerated gases can be better utilized than in other reactors. An application to intellectually protect the developed technology was submitted to IMPI and the number of the application is Mx/a/2017/012722.CONACYT 168305 Y 26909

Beyond R(D(∗))\mathcal{R}(D^{(*)}) with the general 2HDM-III for b→cτνb\to c\tau\nu

We review the parameter regions allowed by measurements of $\mathcal{R}(D^{(*)})$ and by a theoretical limit on ${\cal B}(B_{c}\to\tau\nu)$ in terms of generic scalar and pseudoscalar new physics couplings, $g_s$ and $g_p$. We then use these regions as constraints to predict the ranges for additional observables in $b\to c\tau\nu$ including the differential decay distributions $d\Gamma/dq^{2}$; the ratios $\mathcal{R}(J/\psi)$ and $\mathcal{R}(\Lambda_{c})$; and the tau-lepton polarisation in $B\to D^{(\star)}\tau\nu$, with emphasis on the CP violating normal polarisation. Finally we map the allowed regions in $g_s$ and $g_p$ into the parameters of four versions of the Yukawa couplings of the general 2HDM-III model. We find that the model is still viable but could be ruled out by a confirmation of a large $\mathcal{R}(J/\psi)$.Comment: 27 pages, 11 figures, major changes with new analysis and plot

The role of immune response in traumatic injury

The host immune response to traumatic injury is complex with potentially serious consequences in certain situations. Research has shown that the immune system response after injury is dynamic with both arms of the immune system associated in the response. Building on existing work on trauma research, the exact mechanisms for how the immune system wreaks havoc in some trauma patients in the body’s attempt to restore homeostasis is not fully understood. An immunological cascade initiated after injury by certain innate immune cells has been indicated as the main catalyst for serious complications after trauma in SIRS (Systemic Inflammatory Response Syndrome). SIRS, a serious medical complication with inflammation throughout the body, is often associated with other conditions such as multiorgan failure leading to death. Early treatment and medical intervention are imperative in increasing the survival chances in those with severe complications. Despite the advances in medicine in the last few decades, therapeutic solutions to address these issues are still ongoing given the complex workings of the host immune system. This review aims to examine the immune response in various types of injuries, post injury impacts, current treatments, and ongoing research aimed at developing better therapeutic strategies

Mutual information of generalized free fields

We study generalized free fields (GFF) from the point of view of information measures. We first review conformal GFF, their holographic representation, and the ambiguities in the assignation of algebras to regions that arise in these theories. Then we study the mutual information (MI) in several geometric configurations. The MI displays unusual features at the short distance limit: a leading volume term rather than an area term, and a logarithmic term in any dimensions rather than only for even dimensions as in ordinary conformal field theory's. We find the dependence of some subleading terms on the conformal dimension Δ of the GFF. We study the long distance limit of the MI for regions with boundary in the null cone. The pinching limit of these surfaces show the GFF behaves as an interacting model from the MI point of view. The pinching exponents depend on the choice of algebra. The entanglement wedge algebra choice allows these models to "fake"causality, giving results consistent with its role in the description of large N models.Fil: Benedetti, Valentin. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; ArgentinaFil: Casini, Horacio German. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; ArgentinaFil: Martinez, Pedro Jorge. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentin

A push-pull unsymmetrical subphthalocyanine dimer

Unsymmetrical subphthalocyanine fused dimers have been prepared from appropriate ortho-dinitrile SubPc precursors. In particular, either electron-donating or electron-accepting substituents have been introduced on each SubPc constituent unit, resulting in unprecedented push–pull π-extended curved aromatic macrocycles. From fluorescence experiments in solvents of different polarity we conclude a dual fluorescence, namely a delocalized singlet excited state (1.73 eV) and a polarized charge transfer state (<1.7 eV). Pump probe experiments corroborate the dual nature of the fluorescence. On one hand, the delocalized singlet excited state gives rise to a several nanosecond lasting intersystem crossing yielding the corresponding triplet excited state. On the other hand, the polarized charge transfer state deactivates within a few picosesonds. Visualization of the charge transfer state was accomplished by means of molecular modeling with a slight polarization of the HOMO towards the electron donor and of the LUMO towards the electron acceptor

Uso de la amilasa termoestable de Bacillus licheniformis en la digestibilidad in vitro del almidón de sorgo y maíz

Varias enzimas celulolíticas se han usado para incrementar la digestion ruminal de la fibra y mejorar la producción en rumiantes. Sin embargo, se ha dado poca atención a las enzimas amilolíticas como un tratamiento a los granos, a pesar de que la productividad del ganado puede mejorar con el uso de mezclas de enzimas externas, incluyendo amilasas y celulasas. Así, se incubó sorgo, sorgo rolado con vapor y maíz (500 mg de grano), con fluido ruminal para estudiar el efecto de la adición de alfa-amilasa de Bacillus licheniformis (400 mL) en la digestibilidad in vitro del almidón a las 12 h de fermentación. La incubación (bloque) fue repetida tres veces y los resultados se analizaron bajo un diseño de Bloques Completos al Azar Generalizado, utilizando la interacción bloque por tratamiento para estimar el error experimental. No se detectó interacción entre tipo de grano y enzima. La adición de la enzima termoestable incrementó (p<0.0001) la digestión in vitro del almidón (59.9 vs. 38.5%). La digestión in vitro promedio del almidón (p<0.0001) fue más baja en el sorgo (30.42%), intermedia en el sorgo rolado con vapor (50.72%), y más alta en el maíz (66.48%). La adición de la amilasa termoestable de Bacillus licheniformis incrementó la digestión in vitro del almidón del sorgo y maíz; por lo tanto, esta enzima podría mejorar la digestión in vivo del almidón y la eficiencia alimenticia de dietas basadas en granos con tasas bajas e intermedias de fermentación