Sucesiones de potencias iterativas generadas por a

En el presente trabajo se estudia la sucesión de potencias iterativas generadas por xn = {a si n = 1 a×n-¹ si n ≥ 2 de potencias iterativas generadas por a, a > 0; así como el rango de solubilidad de la ecuación x× = b Se establece que estos problemas están estrechamente ligados con el comportamiento de las funciones f(x) = x¹ y h(x) = x× y con el antiguo problema de determinar las soluciones de la ecuación Xy = y×. Finalmente, se estudia el comportamiento de la función g(x) = x× se calcula su inversa y se construye su gráfica

Ciaramitaro, Fernando. Santo Oficio Imperial. Dinámicas globales y el caso siciliano. México, Universidad Autónoma de la Ciudad de México–GEDISA Editorial, 2022 (283 págs.)

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SUCESIONES DE POTENCIAS ITERATIVAS GENERADAS POR a.

In this paper we study the sequence   of iterated exponentials by a, a > 0; as well as the range of solvability of the equations We state that these two problems are closely related with the behavior of the functions and with the old problem of finding the solutions of the equation . Finally, we study the behavior of the function. calculate its inverse and draw its graph.    En el presente trabajo se estudia la sucesión de potencias iterativas generadas por a, a > 0; así como el rango de solubilidad de la ecuación Se establece que estos problemas están estrechamente ligados con el comportamientode las funciones y con el antiguo problema de determinar las soluciones de la ecuación  Finalmente, se estudia el comportamiento de la función &nbsp

S3S_3 discrete group as a source of the quark mass and mixing pattern in 331331 models

We propose a model based on the $SU(3)_{C}\otimes SU(3)_{L}\otimes U(1)_{X}$ gauge symmetry with an extra $S_{3}\otimes Z_{2}\otimes Z_{4}\otimes Z_{12}$ discrete group, which successfully accounts for the SM quark mass and mixing pattern. The observed hierarchy of the SM quark masses and quark mixing matrix elements arises from the $Z_{4}$ and $Z_{12}$ symmetries, which are broken at very high scale by the $SU(3)_{L}$ scalar singlets ($\sigma$,$\zeta$) and $\tau$, charged under these symmetries, respectively. The Cabbibo mixing arises from the down type quark sector whereas the up quark sector generates the remaining quark mixing angles. The obtained magnitudes of the CKM matrix elements, the CP violating phase and the Jarlskog invariant are in agreement with the experimental data.Comment: 12 pages. Version published in European Physical Journal

A systematic mapping study on testing technique experiments: has the situation changed since 2000?

Context: Empirical Software Engineering (ESE) replication researchers need to store and manipulate experimental data for several purposes, in particular analysis and reporting. Current research needs call for sharing and preservation of experimental data as well. In a previous work, we analyzed Replication Data Management (RDM) needs. A novel concept, called Experimental Ecosystem, was proposed to solve current deficiencies in RDM approaches. The empirical ecosystem provides replication researchers with a common framework that integrates transparently local heterogeneous data sources. A typical situation where the Empirical Ecosystem is applicable, is when several members of a research group, or several research groups collaborating together, need to share and access each other experimental results. However, to be able to apply the Empirical Ecosystem concept and deliver all promised benefits, it is necessary to analyze the software architectures and tools that can properly support it

The Dirichlet Obstruction in AdS/CFT

The obstruction for a perturbative reconstruction of the five-dimensional bulk metric starting from the four-dimensional metric at the boundary,that is, the Dirichlet problem, is computed in dimensions $6\leq d\leq 10$ and some comments are made on its general structure and, in particular, on its relationship with the conformal anomaly, which we compute in dimension $d=8$.Comment: 13 pages, references added (this paper supersedes hep-th/0206140, "A Note on the Bach Tensor in AdS/CFT", which has been withdrawn

Eficacia del diclofenaco tópico vs. nepafenaco tópico en la reducción del dolor durante la fotocoagulación panretiniana

ResumenPropósitoComparar la eficacia del diclofenaco tópico 0.1% vs. nepafenaco tópico en reducir el dolor asociado a la fotocoagulación panretiniana con láser argón.Material y métodosEnsayo clínico aleatorizado doble enmascarado, 132 pacientes (183 ojos) con diagnóstico de retinopatía diabética proliferativa tratados con fotocoagulación panretiniana. Aleatorización en 2 grupos: diclofenaco y nepafenaco tópicos. Se aplicaron 2 dosis de los analgésicos tópicos previas a la fotocoagulación panretiniana, se evaluó el dolor inmediatamente y 15min después. Se analizó nivel de dolor, efectos adversos y síntomas asociados al finalizar la fotocoagulación retiniana.ResultadosLa mediana de la edad para ambos grupos fue de 55 años, relación H:M de 1:1.4. El nivel de dolor inmediato fue de 35.5 (RIC 14-72) para el nepafenaco y de 45 (RIC 14-70) para el diclofenaco (p=0.48). A los 15min fue de 30 (RIC 4-50) para el nepafenaco y de 20 (RIC 2-50) para el diclofenaco (p=0.48). No hubo diferencias significativas en síntomas asociados entre los grupos ni efectos adversos en la superficie ocular.ConclusionesEl tratamiento previo con nepafenaco y diclofenaco tópicos es igualmente eficaz y seguro para reducir el dolor asociado a la fotocoagulación panretiniana en pacientes con retinopatía diabética proliferativa.AbstractPurposeTo compare the efficacy of topical diclofenac 0.1% vs topical nepafenac in reducing pain associated to argon laser retinal photocoagulationMaterial and methodsDouble blinded, randomized clinical trial. One hundred thirty two patients with diagnosis of proliferative diabetic retinopathy treated with retinal photocoagulation. Randomization in to 2 groups: topical diclofenac and nepafenac. Before retinal photocoagulation 2 doses of topical non-steroidal anti-inflammatory drugs were applied, pain was assessed immediately and 15minutes after. Level of pain, adverse effects and associated symptoms at the end of retinal photocoagulation were analyzed.ResultsThe median for age in both groups was 55 years, M:F ratio of 1:1.4. The immediate level of pain was 35.5 (ICR 14-72) for nepafenac and 45 (ICR 14-70) for diclofenac (P=.48). At 15minutes the pain level was 30 (ICR 4-50) for nepafenac and 20 (ICR 2-50) for diclofenac. There was no difference in associated symptoms or adverse effects among groups.ConclusionsThe preventive treatment with topical nepafenac and diclofenac is equally effective and safe for reducing the pain associated with retinal photocoagulation in patients with proliferative diabetic retinopathy

The hyperspace of non-cut subcontinua of graphs and dendrites

Given a continuum $X$, let $C(X)$ denote the hyperspace of all subcontinua of $X$. In this paper we study the Vietoris hyperspace $NC^{*}(X)=\{ A \in C(X):X\setminus A\text{ is connected}\}$ when $X$ is a finite graph or a dendrite; in particular, we give conditions under which $NC^{*}(X)$ is compact, connected, locally connected or totally disconnected. Also, we prove that if $X$ is a dendrite and the set of endpoints of $X$ is dense, then $NC^{*}(X)$ is homeomorphic to the Baire space of irrational numbers