Influencia mineragráfica en la recuperación de oro en los procesos metalúrgicos de la minera Qero’s Gold de Paucartambo – Cusco

Busca dar a conocer la influencia mineragráfica, para la recuperación de oro utilizando la técnica del análisis de microscópico y macroscópica, luego se analiza en el laboratorio metalúrgico con la finalidad de determinar los porcentajes de recuperación. Mediante un estudio geológico se determinó que el batolito de Quero’s es un afloramiento con intrusiones de la formación sandia en la cordillera occidental, las características que presenta el yacimiento son de tipo vetas con potencias que van desde los 15 a 20 cm para la Veta Inkaracay y 17 cm para la veta Mina Sanca ambas con distintas leyes geológicas que permutan entre los 5 y 8 g/Tn. Con el fin de obtener una caracterización geológica detallada se hace uso del microscopio de luz polarizada para determinar los amarres mineralógicos, contenido metálico y gangas; además se realizó un análisis al concentrado con el uso del microscopio electrónico de barrido garantizando el análisis de inclusiones mineralógicas, grado de liberación y difracción de rayos x; para determinar la presencia de arcillas y otros minerales no metálicos presentes en el cuerpo mineralógico. Para las pruebas metalúrgicas se utilizaron alrededor de 120 kilos de mineral entre concentrado mineralógico y mineral sin tratar, se efectuaron cinco pruebas, como análisis de moliendabilidad, pruebas de cianuración en botellas, lixiviación CIP con molienda y sin molienda, concentración centrífuga, flotación rougher; obteniendo una eficiencia del 94.48% de recuperación en flotación rougher de oro con una mezcla (blending) de 75 % de la veta Inkaracay y 25% de la veta Mina Sanca 2

Evaluación de la concentración y dispersión de material particulado (pm10) en el barrio El Dorado de la comuna San Humberto del municipio de Soacha.

El material particulado menor a 10 micras conocido por sus siglas como PM10 es un contaminante criterio del cual su alta concentración en la atmósfera puede deteriorar la calidad del aire y la salud de las personas ya que debido a su pequeño tamaño se adhiere fácilmente al sistema respiratorio. Conociendo lo anterior, se evaluó la concentración de éste contaminante en el barrio El Dorado en cercanías de la autopista sur de Soacha, Cundinamarca mediante un monitoreo continuo durante veinte días utilizando un equipo Hi-Vol teniendo en cuenta las indicaciones sugeridas por el método EPA e-CFR Titulo 40, Parte 50, Apéndice J: PM10 y el Protocolo para el Monitoreo y Seguimiento de la Calidad del Aire, además, se estableció la posible dispersión del contaminante en el municipio mediante el modelo de interpolación Kriging del software AcrGis teniendo en cuenta otra estación de monitoreo de PM10 ubicada en el Hospital Mario Gaitan Yanguas de Soacha y el uso de WRPLOT en función a la velocidad y dirección del viento. Los niveles de PM10 sobrepasaron los 75 µg/m³ establecidos por la norma con un 118,6 µg/m³ en promedio durante el periodo de muestreo, indicando que el aire no es completamente óptimo para el bienestar de los habitantes, además, de que variables meteorológicas como la dirección y velocidad del viento incrementaron los niveles de inmisión de PM10 hacia 21 km2 de Soacha primordialmente en los barrios ubicados al sur de éste, por ende se propusieron ciertas acciones que mitigaran y previnieran el impacto ambiental ocasionado por la alta presencia de material particulado en aire del municipio.Universidad Libre - Facultad de ingeniería - Ingeniería ambienta

Optimización del Sistema de Tratamiento de Agua Residual de la Planta Nº 2 Sector Cacahuango del Cantón Mocha

La optimización del Sistema de Tratamiento de Aguas Residuales de la Planta N°2 “Sector Cacahuango” del cantón Mocha, provincia de Tungurahua, en cooperación con el Gobierno Municipal, pretende implementar procesos para la rehabilitación de la misma. Se aplicó el método de investigación experimental y evaluativo, para realizar el análisis del agua residual in situ se utilizaron equipos portátiles: conductímetro, turbidímetro, pHmetro, los análisis físico-químicos utilizando técnicas y material de laboratorio basados en métodos Normalizados APHA,AWWA,WPCF 17 ed. Se obtuvo como resultados : la remoción de coliformes del agua en un 60 %, en la remoción de turbidez se obtuvo un valor en la salida de 50,4 UNT; en cloruros 127,6 mg /L; la remoción total en la DBO, cerca del 16%, la cantidad de sólidos planta con valores de 3 600 mg/l en sedimentables y 4 300 mg /l en sólidos totales;se espera como resultado total de la optimización la reducción de la DBO del agua de 238 a 70,39 mg/l, condiciones que están dentro de la normativa ambiental. Se concluye, que la calidad del agua que se descarga no cumple con los requerimientos de la normativa establecida en el TULAS. La optimización implicara dos procesos de mejora: el primero corresponde a la ejecución de un programa de mantenimiento emergente de la planta,que constadel cambio de materiales filtrantes, drenado, disposición de aguas y lodos de las unidades colapsadas. En el segundo proceso, se considera el aumento poblacional en una proyección de 10 años,se aplicael diseño de un tanque séptico de dos cámaras, de dimensiones (6,3x3x2) m para tratar el agua residual de 1160 habitantes del centro del cantón. Se recomienda la ejecución del estudio y la programación de otros, para la aplicación de nuevas tecnologías para mejorar el sistema de tratamiento y planificar la creación de un laboratorio básico para el análisis del agua residual y potable del cantón Mocha

Influencia mineragráfica en la recuperación de oro en los procesos metalúrgicos de la Minera Qero´s Gold de Paucartambo- Cusco

Mineragraphic studies allowed selecting the most suitable metallurgical process for optimal gold recovery, whose characterization both microscopic and macroscopic, allowed to undergo metallurgical tests on grinding, bottle cyanidation, centrifugal concentration, rougher flotation. As a result of these metallurgical tests on the base mineral, it allowed a 94.48% recovery in selective flotation with a blending of 36% Inkaracay vein and 64% Mina Sanca 2 vein.Los estudios mineragráficos permitieron seleccionar el proceso metalúrgico más adecuado para una óptima recuperación de oro, cuya caracterización tanto microscópica y macroscópica, permitió experimentar pruebas metalúrgicas en moliendabilidad, cianuración en botellas, concentración centrífuga, flotación rougher. Como resultado de estas pruebas metalúrgicas en el mineral base permitió una recuperación del 94.48% en flotación selectiva con una mezcla (blending) de 36% de veta Inkaracay y 64% de veta mina Sanca 2

Didactic Strategies for the Psychology Degree at the Technical University of Babahoyo

En el currículo de la Educación Superior resulta muy importante la investigación científica este se erige como método y actividad fundamental pues es clave para emprender la solución de los problemas profesionales que enfrentara a lo largo de la vida. En particular, la carrera de Psicología, centra el debate metodológico en la manera de enseñar a investigar en correspondencia con las exigencias del contexto en este propósito un grupo de docentes de la carrera en la Universidad Técnica de Babahoyo, se implicaron en la contrastación con la teoría con el objetivo de caracterizar las estrategias didácticas que se utilizan para para enseñar investigación en la carrera Psicología en la Universidad Técnica de Babahoyo el tipo de investigación es de corte descriptivo, con un enfoque cuantitativo y cualitativo. La investigación docentes de la carrera y de ellos se profundizó con 4 docentes de la asignatura Metodología de la investigación , los que participaron en encuestas y entrevistas. Además, se utilizó la observación y el análisis de documentos sobre todo syllabus, materiales seleccionados por los docentes y colocados en la red para el estudio de temas asociados a este particular el  valor de este proyecto no es solo diagnóstico, es también una convocatoria a la reflexión acerca de la prioridad que tiene enseñar investigación, sobre todo, en la formación de los psicólogos en Ecuador.Scientific research is very important in the curriculum of Higher Education. This stands as a fundamental method and activity because it is key to undertake the solution of professional problems faced throughout life. In particular, the Psychology career, focuses the methodological debate on how to teach research in correspondence with the demands of the context in this purpose a group of teachers of the career at the Technical University of Babahoyo, were involved in the contrast with the theory in order to characterize the didactic strategies used to teach research in the Psychology career at the Technical University of Babahoyo, the type of research is descriptive, with a quantitative and qualitative approach. The research was conducted in depth with 4 teachers of the subject Research Methodology, who participated in surveys and interviews. In addition, observation and analysis of documents were used, especially syllabus, materials selected by the teachers and placed on the network for the study of topics associated with this particular subject. The value of this project is not only diagnostic, it is also a call for reflection on the priority of teaching research, especially in the training of psychologists in Ecuador

Protecting 30% of the planet for nature: costs, benefits and economic implications

A. Waldron, K. Nakamura, J. Sze, T. Vilela, A. Escobedo, P. Negret Torres, R. Button, K. Swinnerton, A. Toledo, P. Madgwick, N. Mukherjee were supported by National Geographic and the Resources Legacy Fund. V. Christensen was supported by NSERC Discovery Grant RGPIN-2019-04901. M. Coll and J. Steenbeek were supported by EU Horizon 2020 research and innovation programme under grant agreement No 817578 (TRIATLAS). D. Leclere was supported by TradeHub UKRI CGRF project. R. Heneghan was supported by Spanish Ministry of Science, Innovation and Universities, Acciones de Programacion Conjunta Internacional (PCIN-2017-115). M. di Marco was supported by MIUR Rita Levi Montalcini programme. A. Fernandez-Llamazares was supported by Academy of Finland (grant nr. 31176). S. Fujimori and T. Hawegawa were supported by The Environment Research and Technology Development Fund (2-2002) of the Environmental Restoration and Conservation Agency of Japan and the Sumitomo Foundation. V. Heikinheimo was supported by Kone Foundation, Social Media for Conservation project. K. Scherrer was supported by the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme under grant agreement No 682602. U. Rashid Sumaila acknowledges the OceanCanada Partnership, which funded by the Social Sciences and Humanities Research Council of Canada (SSHRC). T. Toivonen was supported by Osk. Huttunen Foundation & Clare Hall college, Cambridge. W. Wu was supported by The Environment Research and Technology Development Fund (2-2002) of the Environmental Restoration and Conservation Agency of Japan. Z. Yuchen was supported by a Ministry of Education of Singapore Research Scholarship Block (RSB) Research Fellowship

Working paper analysing the economic implications of the proposed 30% target for areal protection in the draft post-2020 Global Biodiversity Framewor

58 pages, 5 figures, 3 tables- The World Economic Forum now ranks biodiversity loss as a top-five risk to the global economy, and the draft post-2020 Global Biodiversity Framework proposes an expansion of conservation areas to 30% of the earth’s surface by 2030 (hereafter the “30% target”), using protected areas (PAs) and other effective area-based conservation measures (OECMs). - Two immediate concerns are how much a 30% target might cost and whether it will cause economic losses to the agriculture, forestry and fisheries sectors. - Conservation areas also generate economic benefits (e.g. revenue from nature tourism and ecosystem services), making PAs/Nature an economic sector in their own right. - If some economic sectors benefit but others experience a loss, high-level policy makers need to know the net impact on the wider economy, as well as on individual sectors. [...]A. Waldron, K. Nakamura, J. Sze, T. Vilela, A. Escobedo, P. Negret Torres, R. Button, K. Swinnerton, A. Toledo, P. Madgwick, N. Mukherjee were supported by National Geographic and the Resources Legacy Fund. V. Christensen was supported by NSERC Discovery Grant RGPIN-2019-04901. M. Coll and J. Steenbeek were supported by EU Horizon 2020 research and innovation programme under grant agreement No 817578 (TRIATLAS). D. Leclere was supported by TradeHub UKRI CGRF project. R. Heneghan was supported by Spanish Ministry of Science, Innovation and Universities, Acciones de Programacion Conjunta Internacional (PCIN-2017-115). M. di Marco was supported by MIUR Rita Levi Montalcini programme. A. Fernandez-Llamazares was supported by Academy of Finland (grant nr. 311176). S. Fujimori and T. Hawegawa were supported by The Environment Research and Technology Development Fund (2-2002) of the Environmental Restoration and Conservation Agency of Japan and the Sumitomo Foundation. V. Heikinheimo was supported by Kone Foundation, Social Media for Conservation project. K. Scherrer was supported by the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme under grant agreement No 682602. U. Rashid Sumaila acknowledges the OceanCanada Partnership, which funded by the Social Sciences and Humanities Research Council of Canada (SSHRC). T. Toivonen was supported by Osk. Huttunen Foundation & Clare Hall college, Cambridge. W. Wu was supported by The Environment Research and Technology Development Fund (2-2002) of the Environmental Restoration and Conservation Agency of Japan. Z. Yuchen was supported by a Ministry of Education of Singapore Research Scholarship Block (RSB) Research FellowshipPeer reviewe

Combined Vision and Hearing Difficulties Results in Higher Levels of Depression and Chronic Anxiety: Data From a Large Sample of Spanish Adults

Objective: Individually, vision and hearing impairments have been linked to higher levels of anxiety and depression. We investigated the effect of dual sensory impairment (difficulty seeing and hearing) in a large representative sample of Spanish adults. Methods: Data from a total of 23,089 adults (age range: 15–103 years, 45.9% men) from the Spanish National Health Survey 2017 were analyzed. Self-reported difficulty of seeing and hearing (exposures), and depression and chronic anxiety (outcomes) were analyzed. Multivariable logistic regression was assessed for difficulty with vision alone, hearing alone and with difficulty with both, adjusting for gender, age, marital status, living as a couple, education, smoking, alcohol consumption, BMI, physical activity, use of glasses/contact lenses, and hearing aid. Results: Visual difficulty, hearing difficulty, and dual difficulties were all associated with significantly higher odds for depression (ORs 2.367, 2.098, and 3.852, respectively) and for chronic anxiety (ORs 1.983, 1.942, and 3.385, respectively). Dual sensory difficulty was associated with higher odds ratios for depression and anxiety when compared to either impairment alone. Conclusion: Dual sensory difficulty is associated with significantly higher odds of anxiety and depression when compared to either vision or hearing difficulty alone. Appropriate interventions are needed to address any reversible causes of vision and hearing as well as anxiety and depression in people in these specific groups

Predictors of Enhancing Human Physical Attractiveness: Data from 93 Countries

People across the world and throughout history have gone to great lengths to enhance their physical appearance. Evolutionary psychologists and ethologists have largely attempted to explain this phenomenon via mating preferences and strategies. Here, we test one of the most popular evolutionary hypotheses for beauty-enhancing behaviors, drawn from mating market and parasite stress perspectives, in a large cross-cultural sample. We also test hypotheses drawn from other influential and non-mutually exclusive theoretical frameworks, from biosocial role theory to a cultural media perspective. Survey data from 93,158 human participants across 93 countries provide evidence that behaviors such as applying makeup or using other cosmetics, hair grooming, clothing style, caring for body hygiene, and exercising or following a specific diet for the specific purpose of improving ones physical attractiveness, are universal. Indeed, 99% of participants reported spending \u3e10 min a day performing beauty-enhancing behaviors. The results largely support evolutionary hypotheses: more time was spent enhancing beauty by women (almost 4 h a day, on average) than by men (3.6 h a day), by the youngest participants (and contrary to predictions, also the oldest), by those with a relatively more severe history of infectious diseases, and by participants currently dating compared to those in established relationships. The strongest predictor of attractiveness-enhancing behaviors was social media usage. Other predictors, in order of effect size, included adhering to traditional gender roles, residing in countries with less gender equality, considering oneself as highly attractive or, conversely, highly unattractive, TV watching time, higher socioeconomic status, right-wing political beliefs, a lower level of education, and personal individualistic attitudes. This study provides novel insight into universal beauty-enhancing behaviors by unifying evolutionary theory with several other complementary perspectives

The United States COVID-19 Forecast Hub dataset

Academic researchers, government agencies, industry groups, and individuals have produced forecasts at an unprecedented scale during the COVID-19 pandemic. To leverage these forecasts, the United States Centers for Disease Control and Prevention (CDC) partnered with an academic research lab at the University of Massachusetts Amherst to create the US COVID-19 Forecast Hub. Launched in April 2020, the Forecast Hub is a dataset with point and probabilistic forecasts of incident cases, incident hospitalizations, incident deaths, and cumulative deaths due to COVID-19 at county, state, and national, levels in the United States. Included forecasts represent a variety of modeling approaches, data sources, and assumptions regarding the spread of COVID-19. The goal of this dataset is to establish a standardized and comparable set of short-term forecasts from modeling teams. These data can be used to develop ensemble models, communicate forecasts to the public, create visualizations, compare models, and inform policies regarding COVID-19 mitigation. These open-source data are available via download from GitHub, through an online API, and through R packages