Exploring Accelerating Hairy Black Holes in 2+12+1 Dimensions: The Asymptotically Locally Anti-de Sitter Class and its Holography

In the realm of lower-dimensional accelerating spacetimes, it is well-established that the presence of domain walls, which are co-dimension one topological defects, is a necessary condition for their construction. We expand the geometric framework by adding a conformally coupled scalar field. This endeavor leads to the identification of several new families of three-dimensional accelerating spacetimes with asymptotically locally anti-de Sitter (AdS) behavior. Notably, one of these solutions showcases a hairy generalization of the accelerating BTZ black hole. This solution is constructed at both slow and rapid phases of acceleration, and its connection with established vacuum spacetime models is explicitly elucidated. The inclusion of the scalar field imparts a non-constant Ricci curvature to the domain wall, thereby rendering these configurations particularly suitable for the construction of two-dimensional quantum black holes. To establish a well-posed variational principle in the presence of the domain wall, two essential steps are undertaken. First, we extend the conventional renormalized AdS$_3$ action to accommodate the presence of the scalar field. Second, to establish a well-posed variational principle, we extend the renormalized AdS$_3$ action to include the scalar field and incorporate the Gibbons--Hawking--York term for internal boundaries and domain wall tension. We engage in holographic computations, thereby determining the explicit form of the holographic stress tensor. In this context, the stress tensor can be expressed as that of a perfect fluid situated on a curved background. Additionally, it paves the road to ascertain the spacetime mass. Finally, we close by demonstrating the existence of three-dimensional accelerating spacetimes with asymptotically locally flat and asymptotically locally de Sitter geometries, particularly those embodying black holes.Comment: 45 pages, 17 figures, 3 table

Accelerating Black Holes in 2+12+1 dimensions: Holography revisited

This paper studies the holographic description of $2+1-$dimensional accelerating black holes. We start by using an ADM decomposition of the coordinates suitable to identify boundary data. As a consequence, the holographic CFT lies in a fixed curved background which is described by the holographic stress tensor of a perfect fluid. We compute the Euclidean action ensuring that the variational principle is satisfied in the presence of the domain wall. This requires including the Gibbons--Hawking--York term associated with internal boundaries on top of the standard renormalised AdS$_{3}$ action. Finally, we compute the entanglement entropy by firstly mapping the solution to the Rindler--AdS spacetime in which the Ryu--Takayanagi surface is easily identifiable. We found that as the acceleration increases the accessible region of the conformal boundary decreases and also the entanglement entropy, indicating a loss of information in the dual theory due to acceleration.Comment: 15 pages, 7 figures, 1 table. V2: minor changes, references added, typos corrected, accepted for publication in JHE

Accelerating black holes in 2 + 1 dimensions: holography revisited

This paper studies the holographic description of 2 + 1-dimensional accelerating black holes. We start by using an ADM decomposition of the coordinates suitable to identify boundary data. As a consequence, the holographic CFT lies in a fixed curved background which is described by the holographic stress tensor of a perfect fluid. We compute the Euclidean action ensuring that the variational principle is satisfied in the presence of the domain wall. This requires including the Gibbons-Hawking-York term associated with internal boundaries on top of the standard renormalised AdS3 action. Finally, we compute the entanglement entropy by firstly mapping the solution to the Rindler-AdS spacetime in which the Ryu-Takayanagi surface is easily identifiable. We found that as the acceleration increases the accessible region of the conformal boundary decreases and also the entanglement entropy, indicating a loss of information in the dual theory due to acceleration

Gestión de la producción para aumentar la productividad en la empresa planta industrial Chemoto S.A.C.

La investigación asumió como principal objetivo realizar una propuesta de gestión de la producción en la empresa planta industrial Chemoto S.A.C. para aumentar la productividad. Ejecutado el levantamiento de información y con el soporte de herramientas de diagnóstico, se consiguió determinar cómo finalidad de estudio la gestión de la producción. Las técnicas ocupadas para la etapa de recolección de información fueron: la observación, entrevista y análisis documental. En relación a la evaluación ejecutada, es identificado problemas concretos en la gestión de la producción, mantenimiento de maquinaria y mala distribución de los espacios físicos. Se logró establecer y determinar la relación directa de la gestión de la producción y su impacto sobre la productividad; lo que permitió plantear el problema: ¿De qué manera la gestión de la producción logrará mejorar la productividad en la empresa planta industrial Chemoto S.A.C.? Se logró establecer como hipótesis que la elaboración de una propuesta de gestión de la producción, influirá de manera positiva para aumentar la productividad en la empresa planta industrial Chemoto S.A.C. La gestión de la producción posterior a la propuesta de mejora integral, que incluye el mantenimiento productivo total, diseño de layout y sistema de información software ERP; logrará optimizar las actividades críticas previamente identificadas; consiguiendo de ésta forma lograr mejorar los tres criterios o factores de criticidad identificados y asociados a la productividad. De manera general, el porcentaje promedio de mejora para todos los criterios o factores considerados; corresponde al 26.16%. Alcanzado un beneficio costo de S/. 1.37.TesisGestión empresarial y emprendimient

Tecnología y procesos administrativos de recaudación en el distrito judicial del Callao, 2021

La presente investigación tiene como título “La tecnología y los procesos de recaudación en el Distrito Judicial del Callao-2021”; cuyo propósito es determinar la relación entre la tecnología y los procesos de recaudación en el Distrito Judicial del Callao-2021. La metodología en mención tuvo un enfoque cuantitativo, de tipo básica, de nivel correlacional, diseño no experimental de corte transversal. La población estuvo constituida por 10 servidores del área de Recaudaciones del Distrito Judicial del Callao, 2022; de esa forma la muestra fue de tipo censal y abarco en total de l a población. En referencia a los resultados, se encontró que existe una correlación moderada entre la tecnología y los procesos administrativos de recaudación, con un nivel de significancia bilateral de 000<0,05, por lo que se aceptó la hipótesis alterna. Concluyendo, que existe relación entre la tecnología y los procesos administrativos de recaudación del Distrito Judicial del Callao, 2022

Rupturas y continuidades en la concepción del hombre entre Kant y Tugendhat

No aplicaEl siguiente escrito describe algunas rupturas y continuidades en la concepción del hombre entre Immanuel Kant y Ernst Tugendhat a partir de la Crítica de la razón pura y Crítica de la razón práctica y el libro de la antropología como filosofía primera. Este libro que nos presenta Tugendhat es un texto que se apoya bajo los argumentos de Kant, no obstante, no se considera que los análisis o argumentos que plantea Ernst sean totalmente fieles a los orígenes de Kant. La antropología es una disciplina que estudia al hombre y la concepción del “hombre” cambia según la perspectiva del autor al que se estudie, el caso de Tugendhat y Kant es un claro ejemplo, es por este motivo que no se puede afirmar que la idea entre un autor y otro sean totalmente iguales pues, aunque su finalidad sea la misma, el trasfondo es totalmente diferente. Por tanto, el tipo de estudio presente para esta investigación es el método de análisis comparado donde se van a comparar dos autores: la concepción metafísica de Kant sobre el hombre con la concepción más empírica de Tugendhat y a su vez señalar cuales son las diferencias en las preocupaciones de época entre la modernidad en Kant y la concepción contemporánea en Tugendhat.The following paper describes some ruptures and continuities in the conception of man between Immanuel Kant and Ernst Tugendhat from the Critique of pure reason and the Critique of practical reason and the book of anthropology as first philosophy. This book presented by Tugendhat is a text that is based on Kant's arguments; however, we cannot consider that the analyses or arguments put forward by Ernst are totally faithful to Kant's origins. Anthropology is a discipline that studies man and the conception of "man" changes according to the perspective of the author being studied, the case of Tugendhat and Kant is a clear example, it is for this reason that it cannot be said that the idea between one author and the other are totally the same because, although it seems that their purpose is the same, the background is totally different. Therefore, the present type of study for this research is the method of comparative analysis where two authors will be compared: Kant's metaphysical conception of man with the more empirical conception of Tugendhat and in turn point out what are the differences in the concerns of the time between modernity in Kant and the contemporary conception in Tugendhat

Partially observable queueing systems with controlled service rates under a discounted optimality criterion

summary:We are concerned with a class of $GI/GI/1$ queueing systems with controlled service rates, in which the waiting times are only observed when they take zero value. Applying a suitable filtering process, we show the existence of optimal control policies under a discounted optimality criterion

A Two State-Wide Population Based Analysis of Hepatosplenic T-Cell Lymphoma in Hispanic Vs Non-Hispanic Patients in Texas and Florida

Introduction: Peripheral T-cell lymphomas (PTCLs) are a diverse, aggressive form of neoplasms that are rare and constitute % of all non-Hodgkin lymphoma cases (Am J Pathol, PMID:1698028). A sub-set of PTCLs is hepatosplenic T-cell Lymphoma (HSTCL) which is described as an extra-nodal T-cell lymphoma of mature gamma or delta T-cells (Am J Pathol, PMID:1698028). HSTCL is extremely rare accounting for less than 1% of all cases of NHL and because of this, epidemiological research is lacking (Blood PMID: 21300984). Hispanics (H) are one of the fastest growing races in the US but tend to have poorer cancer related health outcomes in comparison to non-Hispanic (NH) (J Lat Psychol. PMID: 27429867). Despite the rapid growth of H, research remains lacking in this population. The goal of this study is to compare demographic, treatment patterns, and survival outcomes in H v Non-Hispanic (NH) of Texas (TX) and Florida (FL). Methods: This is a retrospective study of a cohort of patients diagnosed with HSTCL from the Texas and Florida Cancer Registry databases. The population included in this study were adults of 18 years (y) of age and older during 2006-2017, patients were identified by the International Classification of Diseases for Oncology Third Edition (ICD-O-3) code list, and data was provided to us completely de-identified. Patients were divided into H and NH for comparison. Standard demographic, socioeconomic, clinical, and survival variables were reviewed. All statistical testing was determined using Fisher’s Exact test, Pearson’s Chi-square test, T-test or Wilcoxon test, as appropriate. Survival time was measured using the day of diagnosis to last date of follow-up or death. Survival distributions were calculated based on Kaplan-Meier curves. All statistical testing was two-sided with a significance level of 5%. Results: A total of 27 patients in TX and 29 patients in FL met the inclusion criteria for the analysis. From those, 2 in TX and 4 in FL were H, and 25 in each state were NH. The median age at diagnosis in y was 46 y for H and 50 y for NH in TX [p-value 0.69] versus 53 y for H and 49 y for NH in FL [p-value 0.67]. In TX, 32% of NH patients fell within the poverty indicator of 5-9.9% while 50% of H patients were between 10-19.9%% and 50% between 20-100%. In FL 36% NH fell within 10-19.9% versus 50% H fell within poverty index of 5-9.9%. However, there was no statistical significance between poverty index or race in either state. Although no statistical difference was noted, in TX 39.1% of NH had private insurance versus 100% of H (n=2) whereas in FL 64% of NH and 50% of H had private insurance. In TX, both NH and H were more likely to receive chemotherapy with multiple agents, 48% and 100%, respectively. In FL 56% of NH and 50% H received chemotherapy with multiple agents. The median survival time for H in TX was 0.5 y vs 0.6 y of the NH in contrast to the H in FL with 5.1 y vs 1.0 y of NH. In TX, the survival probability at 2 and 5 y for the H was 0.5 (CI 0.125-1) and 0.5 (CI 0.125-1) vs 0.254 (CI 0.122-0.529) and 0.191 (CI 0.076-0.481) for the NH. In FL, the H survival probability at 2 and 5 y was 0.5 (CI 0.188-1) and 0.5 (CI 0.188-1); for the NH, the survival probability at 2 y was 0.29 (CI 0.148-0.558), at 5 y 0.19 (CI 0.08-0.459) and 10 y 0.19 (CI 0.08-0.459). Conclusion: There were no statistical differences when comparing survival time, demographics, treatment, or insurance status between NH and H in either TX or FL. Of note, the median survival time was greater for H in FL when compared to H in TX while most H patients in FL fell within a lower poverty index compared to H patients in TX. It is possible to deduce that socioeconomic status plays a role in healthcare outcomes in the H regardless of insurance status. This is imperative because healthcare literacy can be correlated to socioeconomic status which can potentially affect adherence to medications, follow-up appointments, and understanding of the disease process and its impact on quality of life. Although this data does not show any statistical differences between patient populations, it highlights the importance of the progress that needs to be made to determine how ethnicity and socioeconomic status impact disease burden in H