Pilot Study of Interventional Radiologist vs. Nephrologist in Renal Biopsy Procedures

The purpose of this study is to investigate the difference in surgical practice between Interventional Radiology (IR) and Nephrology when performing renal biopsies. More research is needed for this project, but this pilot study’s conclusions can serve as future guidance in research. This study focuses on the quantity of cores and glomeruli collected during renal biopsy procedures. A study was published in 2009 from the Department of Pathology and Internal Medicine IV at the University of Erlangen-Nurnberg, Germany explaining “~10-15 glomeruli is optimal for a renal biopsy.” (1) A larger collection of cores/glomeruli can ensure an accurate biopsy diagnosis but may pose future risk for the patient.https://digitalcommons.unmc.edu/surp2020/1010/thumbnail.jp

Dissipative Dynamics of Highly Anisotropic Systems

In this paper we present a method to improve the description of 0+1 dimensional boost invariant dissipative dynamics in the presence of large momentum-space anisotropies. We do this by reorganizing the canonical hydrodynamic expansion of the distribution function around a momentum-space anisotropic ansatz rather than an isotropic equilibrium one. At leading order the result obtained is two coupled ordinary differential equations for the momentum-space anisotropy and typical momentum of the degrees of freedom. We show that this framework can reproduce both the ideal hydrodynamic and free streaming limits. Additionally, we demonstrate that when linearized the differential equations reduce to 2nd order Israel-Stewart viscous hydrodynamics. Finally, we make quantitative comparisons of the evolution of the pressure anisotropy within our approach and 2nd order viscous hydrodynamics in both the strong and weak coupling limits.Comment: 17 pages, 5 figures; Published versio

Urban Corridors Periferico Sur and Insurgentes Sur and its Impact on Mexico City Cultural Built Heritage (1980-2018)

In this paper we examine, from a historical perspective, how neoliberal policies become the underlying causes that affect cultural built heritage in the southern portion of Mexico City, at present. First, we document the development of cultural built heritage in Mexico during the 20th century. We underline that this idea is accompanied, however, by a series of destruction processes concerning cultural built heritage at the same time, as the urban sprawl of Mexico City expands far south. Then, we focus on morphological and functional transformations that occurred in Periferico Sur and Insurgentes Sur urban corridors. Quantitative data that support an amalgamation of building complexes and land uses is presented, which is strongly related to the tertiary sector. We highlight the contradictions concerning the preservation of cultural built heritage within the region in current days. A first case study deals with Cuicuilco Archaeological Zone and the lack of public investment in its maintenance. Second, we assess the reconversion of an old factory into a shopping mall with support of private investment. Finally, we deal with a group of monumental sculptures that remained abandoned by their owners, but also lack of any kind of official protection by the Mexican institutions, for years

Desempeño laboral docente y gestión educativa en la Escuela Militar de Chorrillos – 2017

El objetivo de la presente investigación fue determinar de qué manera se relaciona el desempeño laboral docente con la gestión educativa en la Escuela Militar de Chorrillos - 2017, bajo la perspectiva de los docentes. El enfoque fue de una investigación cuantitativa, de tipo descriptivo correlacional, de diseño no experimental. La población estuvo compuesta por 71 docentes, de los cuales se tomó una muestra de 60, obtenidos por muestreo aleatorio, a quienes se les aplicó una encuesta de 20 preguntas con una escala de cinco categorías de respuestas referida a ambas variables. Este instrumento tuvo una alta confiabilidad de 0.903. Se realizó el análisis correspondiente a los resultados de la encuesta llegando a la demostración empírica de que la mayoría apoya o considera positivamente los requerimientos de los indicadores y las dimensiones propuestas en el instrumento; esto fue ampliamente corroborado y contrastado empleando el chi cuadrado. Se concluyó que el desempeño laboral docente se relaciona significativamente con la gestión educativa en la Escuela Militar de Chorrillos – 2017.Tesi

Eficacia de las diapositivas electrónicas en el rendimiento académico de los estudiantes del octavo ciclo de la especialidad de Historia de la facultad de Ciencias Sociales de la Universidad Nacional Enrique Guzmán y Valle.

Hemos considerando de necesidad inmediata el desarrollo de esta investigación de tipo cuasi-experimental para determinar la significatividad que tiene la aplicación de diapositivas electrónicas guionizadas en el proceso de enseñanza-aprendizaje de la especialidad de Historia de la facultad de Ciencias Sociales de la UNE. Se trabajó sobre una muestra de tipo determinístico de 64 estudiantes de sexo masculino y femenino, entre 23 a 45 años de edad y de condición socioeconómica media, aplicándose un cuestionario sobre eficacia de las diapositivas electrónicas a los docentes especialistas y un cuestionario sobre mejora del rendimiento académico a los estudiantes de la muestra. Como estadístico para la contrastación, se empleó la prueba Chi Cuadrado con coeficiente de contingencia, hallándose que se acepta en términos relativos la hipótesis de investigación o de trabajo, puesto que el Chi cuadrado calculado es mayor que el Chi cuadrado tabular y de modo altamente significativo, a un nivel de confianza estadística del 95% y 2 · grados de libertad. Asimismo, en torno a los problemas específicos, se concluye que los conocimientos básicos necesarios que requieren los docentes para preparar diapositivas electrónicas, son prioritarios las estrategias metodológicas que se consideran más efectivos, como las participativas, heurístico - reflexivas, didactistas e iconicistas. Finalmente, se concluye que los modos en que las diapositivas electrónicas elevan el nivel del rendimiento académico en los alumnos de la muestra, son prioritamente, la participación, la comunicación y el lenguaje, la investigación - autoestudio, y la atención e interés. Además, se incluyen las conclusiones, recomendaciones, bibliografía y anexos.Tesi

Analysis of the Performance and Sailing Variables of the Optimist Class in a Variety of Wind Conditions

The aim of this study was to analyse the variables that determine the performance of the Optimist class during a regatta in different wind conditions. A total of 203 elite sailors of the Optimist class (121 boys and 82 girls) participated in the study. According to their ranking in the regatta, the sample was divided into four performance groups. In a regatta with 11 races, the velocity made good (VMG), the distance and the manoeuvres were evaluated by means of GNSS equipment in three different courses. The boys performed a greater number of upwind and running manoeuvres than the girls. The very-low-level sailors obtained a lower VMG in all the courses analysed compared with the rest of the groups of sailors of higher levels. Upwind manoeuvres, broad reach and running VMG were significant variables for establishing differences in performance level when the wind speed was in a range of 5 to ≤8 knots. When the wind speed was in the >8 to ≤12 knot range, upwind distance was the key variable in determining performance differences. VMG, upwind and broad reach distance and broad reach manoeuvres were the most important variables when the wind speed was in the >12 to 15 knots range. The boys performed more manoeuvres than the girls in the upwind and running courses

First order and stable relativistic dissipative hydrodynamics

Relativistic thermodynamics is derived from kinetic equilibrium in a general frame. Based on a novel interpretation of Lagrange multipliers in the equilibrium state we obtain a generic stable but first order relativistic dissipative hydrodynamics. Although this was believed to be impossible, we circumvent this difficulty by a specific handling of the heat flow.Comment: revised, 11 pages, accepted for publication in PL

Determining the Electronic Structure and Thermoelectric Properties of MoS₂/MoSe₂ Type‐I Heterojunction by DFT and the Landauer Approach

The electronic structure and thermoelectric properties of MoX2 (X = S, Se) Van der Waals heterojunctions are reported, with the intention of motivating the design of electronic devices using such materials. Calculations indicate the proposed heterojunctions are thermodynamically stable and present a band gap reduction from 1.8 eV to 0.8 eV. The latter effect is highly related to interactions between metallic d-character orbitals and chalcogen p-character orbitals. The theoretical approach allows to predict a transition from semiconducting to semi-metallic behavior. The band alignment indicates a type-I heterojunction and band offsets of 0.2 eV. Transport properties show clear n-type nature and a high Seebeck coefficient at 300 K, along with conductivity values (σ/τ) in the order of 1020. Lastly, using the Landauer approach and ballistic transport, the proposed heterojunctions can be modeled as a channel material for a typical one-gate transistor configuration predicting subthreshold values of ≈60 mV dec−1 and field–effect mobilities of ≈160 cm−2 V−1 s−1

Sistema De Control De Inventarios Y Estado De Resultados Integrales En La Empresa De Importacion Y Exportacion Jota Aduanas SAC 2016

La investigación sobre: sistema de control de inventarios y estado de resultados integrales en la empresa de importación y exportación JOTA ADUANAS SAC en el 2016, basa su necesidad de estudio, en cómo incide los Resultados Integrales mediante un buen control de inventarios en su almacén, considerando que un sistema control de inventarios es un factor clave para lograr un adecuado manejo empresarial. La importancia de este estudio está ajustada en el hecho que en el área de almacén encargado de la entrada y salida de la mercadería no cuenta con un control en los inventarios que le permita conocer la existencia real en el almacén, lo que propicia la pérdida de tiempo en las operaciones generales afectando la determinación del estado de resultados integrales (transacciones de ingresos y gastos) en la empresa. La investigación se justifica porque: la gerencia de la empresa de importación y exportación JOTA ADUANAS SAC en el 2016, busca mejorar su capacidad de obtener ingresos por encima de los gastos, basado en su estado de resultados integrales.Research on: comprehensive inventory control system and income statement at import and export company JOTA ADUANAS SAC in 2016, bases its need for study on how Comprehensive Results are influenced through good control of inventories in your warehouse, considering that an inventory control system is a key factor in achieving proper business management. The importance of this study is adjusted in the fact that in the warehouse area responsible for the entry and exit of the goods does not have a control in the inventories that allows it to know the actual existence in the warehouse, which leads to the loss of time in the op affecting the determination of the comprehensive income statement (revenue and expense transactions) in the company. The investigation is justified because: the management of the import and export company JOTA ADUANAS SAC in 2016, seeks to improve its ability to earn income over expenses, based on its comprehensive income statement. Keywords: System, Control, Inventory, Comprehensive Results StatementTrabajo de suficiencia profesiona