Exploración de sistemas pórfidos utilizando la Aluníta como vector de orientación en la Litocapa Los Tambos, región Ayacucho, Perú

The mining districts of Southern Peru located in the Tertiary volcanic belt host epithermal systems hosted by Lithocap that could be linked to porphyry systems. There are several tools to explore “hidden” porphyry systems and one of them are Alunites. The usefulness of Alunites is proposed as guidance towards a possible porphyry system related to the “Los Tambos” Lithocap located in the Ayacucho region. In the study area, volcano-sedimentary sequences, tuffs and domes of Miocene-Pliocene age emerge, with assemblages of advanced argillic alteration and local development of vuggy sílica. Taking as reference the paper “Exploration Tools for Linked Porphyry and Epithermal Deposits: Example from the Mankayan Intrusion-Centered Cu-Au District, Luzon, Philippines” by Zhaoshan Chang, et al.; an orientation study was done to explore porphyry systems using only samples with Alunite. The study revealed a trend of increase in Na content in Alunite with a Northwest direction.Los distritos mineros del Sur del Perú emplazados en la franja volcánica Terciaria albergan sistemas epitermales hospedados por Litocapas que podrían estar ligados a sistemas pórfidos. Hay varias herramientas para explorar sistemas pórfidos “ocultos” y, una de ellas son las alunítas. Se propone la utilidad de las Alunítas como orientación hacia posible sistema pórfido relacionado a la Litocapa “Los Tambos” ubicada en la región Ayacucho. En el área de estudio afloran secuencias volcano-sedimentarias, tobas y domos de edad Mioceno-Plioceno, con ensambles de alteración argílica avanzada y desarrollo local de sílice residual. Tomando como referencia el articulo “Exploration Tools for Linked Porphyry and Epithermal Deposits: Example from the Mankayan Intrusion-Centered Cu-Au District, Luzon, Philippines” de Zhaoshan Chang, et al.; se hizo un estudio de orientación para explorar sistemas pórfido utilizando solo muestras con Aluníta

Alunite as a Tool to Explore Porphyry Systems in the Los Tambos Litocapa, Ayacucho Region, Peru

Los distritos mineros del Sur del Perú emplazados en la franja volcánica Terciaria albergan sistemas epitermales hospedados por litocapas que podrían estar ligados a sistemas pórfidos. Hay varias herramientas para explorar sistemas pórfidos “ocultos” y, una de ellas son las alunítas.  Se propone la utilidad de las Alunitas como orientación hacia posible sistema pórfido relacionado a la Litocapa “Los Tambos” ubicada en la región Ayacucho. En el área de estudio afloran secuencias volcano-sedimentarias, tobas y domos de edad Mioceno-Plioceno, con ensambles de alteración argílica avanzada y desarrollo local de sílice residual. Tomando como referencia el articulo “Exploration Tools for Linked Porphyry and Epithermal Deposits: Example from the Mankayan Intrusion-Centered Cu-Au District, Luzon, Philippines” de Zhaoshan Chang, et al.; se hizo un estudio de orientación para explorar sistemas pórfido utilizando solo muestras con Alunita. El estudio revelo tendencia de incremento en contenido de Na en Alunitas con dirección Noroeste. Lo mismo ocurre con ratios Na/(Na+K) y con valores de La, Sr, La/Pb y Sr/Pb donde contenidos anómalos de Cu y Mo se concentran sobre estas anomalías. Contenidos de Hg tienden a disminuir sobre áreas anómalas de La y Sr en el sector Noroeste de la Litocapa. Índices de Cristalinidad de Illítas confirman incremento de temperatura hacia el Noroeste. Estos indicadores direccionales sugieren ocurrencia de sistema pórfido debajo o al costado del extremo Noroeste de la Litocapa, que se complementa con afloramientos de textura “patchy” y que evidenciaría transición hacia sistema pórfido.The mining districts of Southern Peru located in the Tertiary volcanic belt host epithermal systems hosted by Lithocap that could be linked to porphyry systems. There are several tools to explore “hidden” porphyry systems and one of them are Alunites. The usefulness of Alunites is proposed as guidance towards a possible porphyry system related to the “Los Tambos” Lithocap located in the Ayacucho region. In the study area, volcano-sedimentary sequences, tuffs and domes of Miocene-Pliocene age emerge, with assemblages of advanced argillic alteration and local development of vuggy silica. Taking as reference the paper “Exploration Tools for Linked Porphyry and Epithermal Deposits: Example from the Mankayan Intrusion-Centered Cu-Au District, Luzon, Philippines” by Zhaoshan Chang, et al.; an orientation study was done to explore porphyry systems using only samples with Alunite. The study revealed a trend of increase in Na content in Alunite with a Northwest direction. The same occurs with Na/(Na+K) ratios and with values of La, Sr, La/Pb and Sr/Pb where anomalous contents of Cu and Mo are concentrated on these anomalies. Hg contents tend to decrease over anomalous areas of La and Sr in the Northwest sector of the Lithocap. Illite Crystallinity Index confirm an increase in temperature towards the Northwest. These directional indicators suggest the occurrence of a porphyry system below or beside of the Northwest end of the Lithocap, which is complemented by outcrops of a “patchy” texture and that would evidence a transition to a porphyry system

Association between the risk perception of contracting COVID-19 and sociodemographic characteristics in a Peruvian population [version 2; peer review: 1 approved, 2 approved with reservations]

Background: The perception of risk regarding coronavirus disease 2019 (COVID-19) has been widely researched due to its association with the adoption of preventive measures. In addition, since the onset of vaccination, it has been reported that the population perceives a lower risk of getting infected. However, few studies have analyzed the factors associated with risk perception in low- and middle-income countries. The aim of this study was to determine the association between the risk perception of contracting COVID-19 and sociodemographic characteristics in Peruvian population. Methods: An analytical and cross-sectional study was conducted in four cities in Peru from October to December, 2021. The sample consisted of 821 individuals aged 18 years and older. A virtual questionnaire was used to collect sociodemographic data and assess the risk perception of contracting coronavirus based on the Health Belief Model. The process of back-translation, expert judgment, and reliability analysis using split-half correlation was conducted. Student’s t-tests, analysis of variance with post hoc Tukey’s test, and Spearman’s correlation were employed. Results: Of the participants, 53.71% were women and 73.3% had a higher education level, 45.55% are self-employed, and 40.44% did not have a family member infected with COVID-19. The risk perception of COVID-19 infection was associated with participants’ family antecedent of COVID-19 (p < 0.05). Regarding the factors analyzed, perceived susceptibility to COVID-19 was associated with age (p=0.002), occupation (p<0.05), and a history of COVID-19 (p<0.05), while the perceived benefits of adopting preventive measures against this disease were associated with educational level (p < 0.001). Conclusions: The risk perception of contracting COVID-19 was higher among whose had multiple infected relatives.. Furthermore, the perception of susceptibility and the perceived benefits of using preventive measures were associated with sociodemographic characteristics

Aplicación del método Design Thinking en el área de requerimientos de software

This article presents the application of Design Thinking in the area of software requirements to help and solve some problems that exist in software development. It is intended to integrate the tools, features and phases of Design Thinking into the activities of the analysis of software requirements. The main objective is to integrate the Design Thinking approach in a way that helps in the software requirements and finally see and analyze the results obtained .El presente artículo presenta la aplicación de Design Thinking en el área de requerimientos de software para ayudar y solucionar algunos problemas que existen en el desarrollo de software. Se pretende integrar las herramientas, características y fases de Design Thinking dentro de las actividades del análisis de requerimientos de software. El principal objetivo es integrar el enfoque de Design Thinking de manera que ayude en la definición de los requerimientos de software y finalmente ver y analizar los resultados obtenidos

NeuroMeasure: A Software Package for Quantification of Cortical Motor Maps Using Frameless Stereotaxic Transcranial Magnetic Stimulation

The recent enhanced sophistication of non-invasive mapping of the human motor cortex using MRI-guided Transcranial Magnetic Stimulation (TMS) techniques, has not been matched by refinement of methods for generating maps from motor evoked potential (MEP) data, or in quantifying map features. This is despite continued interest in understanding cortical reorganization for natural adaptive processes such as skill learning, or in the case of motor recovery, such as after lesion affecting the corticospinal system. With the observation that TMS-MEP map calculation and quantification methods vary, and that no readily available commercial or free software exists, we sought to establish and make freely available a comprehensive software package that advances existing methods, and could be helpful to scientists and clinician-researchers. Therefore, we developed NeuroMeasure, an open source interactive software application for the analysis of TMS motor cortex mapping data collected from Nexstim® and BrainSight®, two commonly used neuronavigation platforms. NeuroMeasure features four key innovations designed to improvemotor mapping analysis: de-dimensionalization of the mapping data, fitting a predictive model, reporting measurements to characterize the motor map, and comparing those measurements between datasets. This software provides a powerful and easy to use workflow for characterizing and comparing motor maps generated with neuronavigated TMS. The software can be downloaded on our github page: https://github.com/EdwardsLabNeuroSci/NeuroMeasure. AIM This paper aims to describe a software platform for quantifying and comparing maps of the human primarymotor cortex, using neuronavigated transcranialmagnetic stimulation, for the purpose of studying brain plasticity in health and diseas

Neuromeasure: A software package for quantification of cortical motor maps using frameless stereotaxic transcranial magnetic stimulation

The recent enhanced sophistication of non-invasive mapping of the human motor cortex using MRI-guided Transcranial Magnetic Stimulation (TMS) techniques, has not been matched by refinement of methods for generating maps from motor evoked potential (MEP) data, or in quantifying map features. This is despite continued interest in understanding cortical reorganization for natural adaptive processes such as skill learning, or in the case of motor recovery, such as after lesion affecting the corticospinal system. With the observation that TMS-MEP map calculation and quantification methods vary, and that no readily available commercial or free software exists, we sought to establish and make freely available a comprehensive software package that advances existing methods, and could be helpful to scientists and clinician-researchers. Therefore, we developed NeuroMeasure, an open source interactive software application for the analysis of TMS motor cortex mapping data collected from Nexstim® and BrainSight®, two commonly used neuronavigation platforms. NeuroMeasure features four key innovations designed to improve motor mapping analysis: de-dimensionalization of the mapping data, fitting a predictive model, reporting measurements to characterize the motor map, and comparing those measurements between datasets. This software provides a powerful and easy to use workflow for characterizing and comparing motor maps generated with neuronavigated TMS. The software can be downloaded on our github page: https://github.com/EdwardsLabNeuroSci/NeuroMeasure Aim This paper aims to describe a software platform for quantifying and comparing maps of the human primary motor cortex, using neuronavigated transcranial magnetic stimulation, for the purpose of studying brain plasticity in health and disease

NeuroMeasure: A Software Package for Quantification of Cortical Motor Maps Using Frameless Stereotaxic Transcranial Magnetic Stimulation

The recent enhanced sophistication of non-invasive mapping of the human motor cortex using MRI-guided Transcranial Magnetic Stimulation (TMS) techniques, has not been matched by refinement of methods for generating maps from motor evoked potential (MEP) data, or in quantifying map features. This is despite continued interest in understanding cortical reorganization for natural adaptive processes such as skill learning, or in the case of motor recovery, such as after lesion affecting the corticospinal system. With the observation that TMS-MEP map calculation and quantification methods vary, and that no readily available commercial or free software exists, we sought to establish and make freely available a comprehensive software package that advances existing methods, and could be helpful to scientists and clinician-researchers. Therefore, we developed NeuroMeasure, an open source interactive software application for the analysis of TMS motor cortex mapping data collected from Nexstim® and BrainSight®, two commonly used neuronavigation platforms. NeuroMeasure features four key innovations designed to improve motor mapping analysis: de-dimensionalization of the mapping data, fitting a predictive model, reporting measurements to characterize the motor map, and comparing those measurements between datasets. This software provides a powerful and easy to use workflow for characterizing and comparing motor maps generated with neuronavigated TMS. The software can be downloaded on our github page: https://github.com/EdwardsLabNeuroSci/NeuroMeasureAimThis paper aims to describe a software platform for quantifying and comparing maps of the human primary motor cortex, using neuronavigated transcranial magnetic stimulation, for the purpose of studying brain plasticity in health and disease

Propuesta de una metodología en base a la filosofía 5'S para mejorar la productividad en el taller de escapes Turbo Huth

Al hablar de la producción vemos que cada día se busca la optimización de recursos, como principal artífice encontramos al factor tiempo, ya que ante el gira el factor costo y mas a un si hablamos de costos de oportunidad [mejor oportunidad desechada], demostramos que la mejora y calidad del producto terminado está basado, tanto desde el momento que ingresa como producto bruto hacia las bodegas, como el proceso de elaboración, para posteriormente su entrega como producto terminado, dando un orden cronológico que nos demuestra que los factores antes citados deben adaptarse y acoplarse a las organizaciones, en base a las metodologías, principios, leyes y demás elementos que buscan hacer que una organización camine por las sendas de emprendedorismo. Partiendo de esta pequeña introducción nos acercamos un poco más hacia nuestro tema y observamos que las empresas vinculadas con la industria automotriz especialmente los talleres dedicados a la fabricación, producción, o comercialización de escapes sufren problemas de primer orden ya que al no contar con parámetros de guía esenciales demuestran debilidad en sus diferentes sistemas de producción, y peor a un en áreas en donde no se puede dar espacio a errores, ya que uno de ellos podría ser una brecha, que haga que la organización vaya a un desequilibrio y posteriormente un fracaso total por eso buscamos realizar propuesta de una metodología en base a la filosofía 5`S para mejorar la productividad en el taller de escapes Turbo Huth, en donde las 5`S se estructuran en los ítems del lugar de trabajo en dos categorías lo necesario y lo innecesario- y eliminar o erradicar esto último, debe establecerse un tope sobre el número de ítems necesarios, en el lugar de trabajo puede encontrarse toda clase de objetos, una mirada minuciosa revela que en el trabajo diario sólo se necesita un número pequeño de estos; muchos otros objetos no se utilizaran nunca o solo se necesitarán en un futuro distante. Ejemplo: máquinas y herramientas sin uso, productos defectuosos, trabajo en proceso, sobrantes, materias primas, suministros y partes, anaqueles, contenedores, escritorios, bancos de trabajo, archivos de documentos que alguna vez piensa usar maquinarias guardadas desde hace muchos años atrás como estantes, tarimas, cajas y demás cosas que impiden la productividad un método práctico y fácil consiste en retirar cualquier cosa que no se vaya a utilizar. Seleccionando un área, y colocando etiquetas rojas sobre los elementos que considera innecesarios, es posible que el área esté cubierta con centenares de etiquetas rojas las cosas que no tengan un uso futuro evidente y que no tengan valor intrínseco, se descartan las cosas que no se vayan a necesitar llevando a la clasificación, ordenamiento, limpieza, estandarización, y autodisciplina pero que podrían utilizarse en algún momento en el futuro, se llevan a sus correspondientes lugares tanto los gerentes como los operarios tienen que ver estas extravagancias para poder creerlo esta es una forma práctica de que el taller de escapes puedan echar una mirada a la forma como las personas trabajan y se desarrollan

Analysis of co-authorship networks among Brazilian graduate programs in computer science.

The growth and popularization of platforms on scientific production has been the subject of several studies, producing relevant analyses of co-authorship behavior among groups of researchers. Researchers and their scientific productions can be analysed as co-authorship social networks, so researchers are linked through common publications. In this context, co-authoring networks can be analysed to find patterns that can describe or characterize them. This work presents the analysis and characterization of co-authorship networks of academic Brazilian graduate programs in computer science. Data from Brazilian researchers were collected and modeled as co-authoring networks among the graduate programs that researchers take part in. Each network topology was analysed with complex network measurements and three proposed qualitative indices that evaluate the publication's quality. In addition, the co-authorship networks of the computer science graduate programs were characterized in relation to the assessment received by CAPES, which attributes a qualitative grade to the graduate programs in Brazil. The results show the most relevant topological measurements for the program's characterization and the evaluations received by the programs in different qualitative degrees, relating the main topological patterns of the co-authorship networks and the CAPES grades of the Brazilian graduate programs in computer science