Producción Académica: Envíos recientes
Mostrando publicaciones 2701-2720 de 3943
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A multi-channel speech enhancement method based on subband affine projection algorithm in combination with proposed circular nested microphone array
(2021)In this paper, a novel multi-channel speech enhancement system is introduced based on a proposed circular nested microphone array (C-NMA) in combination with subband affine projection algorithm (SB-APA). The multi-channel ...
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Development of a spatialized atmospheric emission inventory for the main industrial sources in Brazil
(2020)In this work, atmospheric pollutant emissions of NOx, SOx, CO, particulate matter (PM), total organic compounds (TOC), and CO2 from larger stationary sources of pollutants in Brazil were inventoried and spatialized over ...
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Evaluation of future climate change scenarios in urban heat island and its neighborhood using dynamical downscaling
(2020)According to IPCC reports, global climate change is likely to be accompanied by a greater frequency, intensity, and duration of heat waves in urban areas. This is related to predicted and ongoing variation of atmospheric ...
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Polypharmacy in a semirural community in Chile: Results from Maule Cohort
(2020)Purpose: Although polypharmacy in younger populations is a growing public health concern, most studies addressing polypharmacy focus on elderly populations. Thus, polypharmacy is not yet well understood in younger ...
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Characterization of an Alsodes pehuenche breeding site in the Andes of central Chile
(2020)Alsodes pehuenche, an endemic anuran that inhabits the Andes of Argentina and Chile, is considered “Critically Endangered” due to its restricted geographical distribution and multiple potential threats that affect it. This ...
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Universal mental health screening with a focus on suicidal behaviour using smartphones in a mexican rural community: protocol for the smartscreen population-based survey
(2020)Introduction: Mental disorders represent the second cause of years lived with disability worldwide. Suicide mortality has been targeted as a key public health concern by the WHO. Smartphone technology provides a huge ...
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Production routes to bio-acetic acid: life cycle assessment
(2020)Background: Similar to biofuels, numerous chemicals produced from petroleum resources can also be made from biomass. In this research we investigate cradle to biorefinery exit gate life cycle impacts of producing acetic ...
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Distribution model of toxic agents and runoff phenomenon in flat aquatic regions
; ; Cordova-Lepe, Fernando
; (2020)
The study presents a model of distribution of toxic agents in flat aquatic regions such as lakes, lagoons, and coastal seas, two sources of pollution are modeled, one from the waste of industrial plants and another one, a ...
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Características del bosque asociadas a la ocurrencia del pulmonado endémico Macrocyclis peruvianus (caracol negro) en la Región del Maule, Chile central
(2020)En muchos moluscos terrestres las relaciones entre su abundancia y las características de sus hábitats aún son poco conocidas. En este trabajo, se estudian las relaciones entre el tipo de vegetación y condiciones del ...
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Susceptibility to organophosphates pesticides and the development of infectious-contagious respiratory diseases
; Cordova-Lepe, Fernando; ; (2020)
In this paper we develop an SIRS compartmental model to investigate the dynamic interplay between pesticide intoxication and the spread of infectious-contagious respiratory diseases. We are particularly interested in ...
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Number of COVID-19 cases in Chile at 120 days with data at 21/03/2020 and threshold of daily effort to flatten the epi-curve
Cordova-Lepe, Fernando; ; (2020)
Realizamos una prospectiva básica, con datos al 21/03/2020 de la evolución del número de casos COVID-19 diarios en Chile con datos del Ministerio de Salud. Asumiendo un crecimiento aritmético en la segunda variación de los ...
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Modelo de umbral de reducción de tasa diaria de casos COVID-19 para evitar el colapso hospitalario en Chile
; Cordova-Lepe, Fernando; ; (2020)
Mediante un modelo matemático este trabajo explora la problemática de la disponibilidad versus sobredemanda de procesos críticos hospitalarias (por ejemplo, camas críticas) ante una fuerte expansión epidémica como la que ...
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Elaboration of carbonated beverages from wheatgrass
(2020)El trigo fue cultivado en bandejas de plástico de 22 x 17 cm, con una dosis de siembra de 25 g por bandeja. Se cosechó al décimo día después de la brotación. El estudio consistió en siete tratamientos: T0 testigo, jugo de ...
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Elaboration and sensorial and physicochemical assessment of nectar from mixture of beet, carrot and orange juice
(2019)Se elaboraron cinco néctares con distintos porcentajes de betarraga, zanahoria y naranja en su formulación. Como objetivo general se propuso evaluar la valoración sensorial, nutricional e higiene de un néctar a base de ...
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Early left atrial dysfunction is associated with suboptimal cardiovascular health
(2020)Aims: Two‐dimensional speckle‐tracking echocardiography can assess left atrial (LA) function by measuring atrial volumes and deformation parameters (strain, strain rate). This cross‐sectional analysis explores the association ...
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On some goodness-of-fit tests and their connection to graphical methods with uncensored and censored data
(2020)In this work, we present goodness-of-fit tests related to the Kolmogorov-Smirnov and Michael statistics and connect them to graphical methods with uncensored and censored data. The Anderson-Darling test is often empirically ...
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On a logistic regression model with random intercept: diagnostic analytics, simulation and biological application
(2020)This article proposes a methodology for diagnostics in a logistic regression with random intercept motivated by a biological study. The methodology includes local and global influence techniques allowing us to contrast the ...
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Diagnostic analytics for an autoregressive model under the skew-normal distribution
(2020)Autoregressive models have played an important role in time series. In this paper, an autoregressive model based on the skew-normal distribution is considered. The estimation of its parameters is carried out by using the ...
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Smartphone-based ecological momentary assessment (EMA) in psychiatric patients and student controls: A real-world feasibility study
(2020)Background: Smartphone-based ecological momentary assessment (EMA) is a promising methodology for mental health research. The objective of this study is to determine the feasibility of smartphone-based active and passive ...