Performance Prediction of Nonbinary Forward Error Correction in Optical Transmission Experiments

In this paper, we compare different metrics to predict the error rate of optical systems based on nonbinary forward error correction (FEC). It is shown that the correct metric to predict the performance of coded modulation based on nonbinary FEC is the mutual information. The accuracy of the prediction is verified in a detailed example with multiple constellation formats, FEC overheads in both simulations and optical transmission experiments over a recirculating loop. It is shown that the employed FEC codes must be universal if performance prediction based on thresholds is used. A tutorial introduction into the computation of the threshold from optical transmission measurements is also given.Comment: submitted to IEEE/OSA Journal of Lightwave Technolog

A LIMS-less System for Genotyping Data in Marker-Assisted Selection

Climate change and feeding the growing human population are two tightly intertwined problems we face now. Innovations across several agricultural sectors are needed to meet these challenges as we proceed into the future. Seed companies and plant breeders are at the forefront of producing new plant varieties that must survive under the unique stresses of extreme weather patterns caused by changing climates. This project aims to provide breeders with faster marker results by streamlining the data process of marker-assisted selection (MAS). Manually managing genotyping data in MAS can take several hours or days to compile results for breeders. Although some solutions have been deploying laboratory information management systems (LIMS), they are often excessive, expensive, and add more steps to workflows in MAS labs. MASLGenerator and SPLi4MKGTR are two programs created in this project as an alternative to commercial LIMS systems. These tools facilitate and increase the rate of data generation for MAS. Keywords

Ajuste de la topología de la red eléctrica de distribución basado en restricciones de seguridad usando algoritmo de búsqueda / Ajuste da topologia da rede de distribuição elétrica com base em restrições de segurança usando algoritmo de busca

El proyecto se enfoca en el desarrollo de una herramienta para la reconfiguración de las redes eléctricas de distribución considerando restricciones de seguridad cuando existen eventos de salida de servicio en el sistema eléctrico. En este contexto, el proyecto toma en consideración la maximización de la carga tomada por el sistema de distribución luego del cambio de estado de los interruptores de interconexión considerando también la mínima cantidad de operaciones de los interruptores y sujeto a restricciones de voltaje, potencia y radialidad de la red. Se ha considerado para el análisis del algoritmo el sistema de 69 nodos modificado y el sistema de 136 nodos, en donde se ha considerado la salida de servicio de un tramo de la red, y se han obtenido como resultados valores satisfactorios en la recuperación de las cargas fuera de servicio considerando la mejor opción de reconfiguración

Sistema de detracciones en la situacion financiera de la empresa Marina de Montoya E.I.R.L. 2015

La investigación titulada "SISTEMA DE DETRACCIONES EN LA SITUACIÓN FINANCIERA DE LA EMPRESA MARINA DE MONTOYA EIRL 2015", tuvo como finalidad determinar la influencia de las detracciones en la situación financiera de la empresa Marina de Montoya, EIRL. correspondiendo a una investigación descriptiva, no experimental, aplicada, transversal; que utilizo como técnica el análisis documental y como instrumento la ficha de análisis documental; la población estuvo determinada por todas las empresas de la ciudad de Trujillo que utilizaron el sistema de detracciones, y como muestra, a la empresa Marina de Montoya EIRL, la unidad de análisis, fueron los documentos contables; obteniendo como resultado la confirmación de la hipótesis planteada: existe influencia negativa de las detracciones en la situación financiera de la empresa Marina de Montoya EIRL y como conclusión que existe una incidencia negativa de S/. 20,994 por el periodo 2015, y una incidencia negativa global de S/. 108,171.30; recomendando la apertura de líneas secundarias al negocio, así como; invertir en activos fijos.Tesi

Percepción estética del perfil facial en relación a variaciones de la inclinación del incisivo central superior en estudiantes de la Universidad Continental, 2023

El presente estudio, de tipo correlacional con diseño no experimental transversal, tiene como objetivo establecer la percepción estética del perfil facial en relación a variaciones de la inclinación del incisivo central superior en estudiantes de la Universidad Continental, de la ciudad de Huancayo, en el año 2023. La población es de 500 estudiantes de pregrado de la Universidad Continental, con una muestra de 373 estudiantes, estos distribuidos en grupos homogéneos de acuerdo a su facultad, a quienes se le va realizar una encuesta que incluirá una ficha para los datos generales (sexo, edad y escuela académica profesional), y unas fotografías de perfil dando ciertas inclinaciones del incisivo superior (-5°, 0° y +5°) por el programa adobe Photoshop (versión 14.0), también incluirá las instrucciones a rellenar, donde cada una tendrá una escala visual analógica de 0 a 100mm al pie para la evaluación y una ficha al costado para la dicha calificación

Resistencia a compresión de ladrillo de concreto sustituyendo cemento 12 y 6 porciento de conchas de abanico - hoja de maíz

El presente proyecto desarrolló la resistencia a la compresión de los ladrillos de concreto, usando nuevos materiales que son de origen natural, tales como la ceniza de hoja de maíz y la concha de abanico, los cuales sustituyeron al cemento. Donde se determinó la Resistencia a Compresión de Ladrillo de Concreto Sustituyendo Cemento por 12 y 6 porciento de conchas de abanico y hoja de maíz. La hoja de maíz a 380 °C y la concha de abanico a 890 °C determinados por el análisis térmico diferencial, se encontró un 47.951% de dióxido de silicio (SiO2) en la hoja de maíz y un 88.014% de óxido de calcio (CaO) en las conchas de abanico determinados por análisis de fluorescencia de rayos- X, ambos materiales se combinaron para sustituir al cemento en un 18%. Los resultados conseguidos en la elaboración de los ladrillos de concreto no fueron favorables, ya que la resistencia a la compresión a los 28 días de edad, en los ladrillos de concreto patrón resultó 141.74 kg/cm2 y en los ladrillos de concreto experimental resultó 118.65 kg/cm2, no cumplió la resistencia a la compresión establecida de 130 kg/cm2 a los 28 días de edad

One-year client impacts of quality of care improvements achieved in Peru

This report presents a one-year assessment of quality-of-care improvements in Peru, following provider training on the job aids–assisted Balanced Counseling Strategy. Results showed significant enhancement of quality of care, an increase in session length, and improved client knowledge of the method chosen when this was an IUD or hormonal method. Correlational findings suggested that better impacts can be achieved in provincial primary health facilities than in larger settings like clinics or hospitals in capital cities. The results are important because: 1) other studies have failed to show significant impacts of controlled quality-of-care improvements on the use of contraception; and 2) the Balanced Counseling Strategy was not implemented to its full extent. Greater impacts can be expected when the Strategy’s potential is fully realized

ESTUDO AVIFAUNÍSTICO EM DOIS LAGOS URBANOS DE SÃO LUÍS DOS MONTES BELOS, ESTADO DE GOIÁS, BRASIL

A avifauna de lagos urbanos no estado de Goiás é pouco conhecida. Assim, este estudo analisou as aves em dois lagos inseridos na malha urbana de um município na Microrregião de Anicuns, interior de Goiás. Os dados foram coletados mensalmente entre outubro de 2020 a setembro de 2021, totalizando 12 visitas em cada lago, entre 6h30 e 10h30 (48h atividade/lago e 96h/atividade total). Percorrer o perímetro de cada lago foi o método empregado para registro das espécies. Um total de 105 espécies, pertencentes a 41 famílias, foi encontrado nos dois lagos estudados. De modo geral, predominaram as famílias Traupidae, Tyrannidae e Psittacidae, para o total de dados e cada lago separadamente. Pandion haliaetus (Linnaeus, 1758), espécie “visitante sazonal não-reprodutivo do Norte (VI(N))”, e Amazona aestiva (Linnaeus, 1758), espécie “quase ameaçada (NT)”, foram registradas no Lago “Parque Josias Alves” na periferia urbana, demonstrando assim a relevância conservacionista desta área, que também apresentou maior riqueza em relação ao Lago “Parque Bela Vista” no centro da malha urbana. O estimador de Chao2 e as curvas de distribuição assintóticas demonstraram que a riqueza foi satisfatoriamente obtida, para o total de dados e cada lago analisado separadamente. Com relação às categorias de ocorrência, para ambos os lagos predominaram as espécies Prováveis Residentes e Residentes. Recomendamos mais estudos nestes lagos, para esclarecer outros aspectos ecológicos em suas avifaunas. Pesquisas futuras, tanto em São Luís dos Montes Belos quanto em outros municípios circunvizinhos certamente ampliarão o conhecimento avifaunístico ao longo desta paisagem no interior goiano. Palavras-chave: Mesorregião Centro Goiano. Ornitologia. Corpos d’água

A deep learning approach to identify unhealthy advertisements in street view images

While outdoor advertisements are common features within towns and cities, they may reinforce social inequalities in health. Vulnerable populations in deprived areas may have greater exposure to fast food, gambling and alcohol advertisements, which may encourage their consumption. Understanding who is exposed and evaluating potential policy restrictions requires a substantial manual data collection effort. To address this problem we develop a deep learning workflow to automatically extract and classify unhealthy advertisements from street-level images. We introduce the Liverpool 360 ∘ Street View (LIV360SV) dataset for evaluating our workflow. The dataset contains 25,349, 360 degree, street-level images collected via cycling with a GoPro Fusion camera, recorded Jan 14th–18th 2020. 10,106 advertisements were identified and classified as food (1335), alcohol (217), gambling (149) and other (8405). We find evidence of social inequalities with a larger proportion of food advertisements located within deprived areas and those frequented by students. Our project presents a novel implementation for the incidental classification of street view images for identifying unhealthy advertisements, providing a means through which to identify areas that can benefit from tougher advertisement restriction policies for tackling social inequalities. © 2021, The Author(s)

A deep learning approach to identify unhealthy advertisements in street view images

While outdoor advertisements are common features within towns and cities, they may reinforce social inequalities in health. Vulnerable populations in deprived areas may have greater exposure to fast food, gambling and alcohol advertisements encouraging their consumption. Understanding who is exposed and evaluating potential policy restrictions requires a substantial manual data collection effort. To address this problem we develop a deep learning workflow to automatically extract and classify unhealthy advertisements from street-level images. We introduce the Liverpool 360 degree Street View (LIV360SV) dataset for evaluating our workflow. The dataset contains 26,645, 360 degree, street-level images collected via cycling with a GoPro Fusion camera, recorded Jan 14th -- 18th 2020. 10,106 advertisements were identified and classified as food (1335), alcohol (217), gambling (149) and other (8405) (e.g., cars and broadband). We find evidence of social inequalities with a larger proportion of food advertisements located within deprived areas, and those frequented by students and children carrying excess weight. Our project presents a novel implementation for the incidental classification of street view images for identifying unhealthy advertisements, providing a means through which to identify areas that can benefit from tougher advertisement restriction policies for tackling social inequalities