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Mostrando publicaciones 41-60 de 3887
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A global phylogeny of butterflies reveals their evolutionary history, ancestral hosts and biogeographic origins
(2023)Butterflies are a diverse and charismatic insect group that are thought to have evolved with plants and dispersed throughout the world in response to key geological events. However, these hypotheses have not been extensively ...
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A hybrid algorithm of ML and XAI to prevent breast cancer: a strategy to support decision making
(2023)Worldwide, the coronavirus has intensified the management problems of health services, significantly harming patients. Some of the most affected processes have been cancer patients’ prevention, diagnosis, and treatment. ...
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A hyper-parameter optimizer algorithm based on conditional opposition local-based learning forbidden redundant indexes adaptive artificial bee colony applied to regularized extreme learning machine
(2024)Finding the best configuration of a neural network’s hyper-parameters may take too long to be feasible using an exhaustive search, especially when the cardinality of the search space has a big combinatorial number of ...
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A journey from molecule to physiology and in silico tools for drug discovery targeting the transient receptor potential vanilloid type 1 (TRPV1) channel
(2023)The heat and capsaicin receptor TRPV1 channel is widely expressed in nerve terminals of dorsal root ganglia (DRGs) and trigeminal ganglia innervating the body and face, respectively, as well as in other tissues and organs ...
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A less conservative approach to handle time-varying parameters in discrete-time linear parameter-varying systems with applications in networked control systems
(2020)This article proposes a new strategy to deal with linear parameter-varying discrete-time systems, whose time-varying parameters can be written as solutions (such as exponential, trigonometric, or periodic function) of a ...
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A longitudinal study of adolescents engaged in non-suicidal self injury (NSSI): clinical follow-up from adolescence to young adulthood
(2021)The main aim of the current study is to examine the demographic and clinical factors that predict a continuity of the use of Mental Health Services (MHS) in adulthood by subjects who have engaged in non-suicidal-self-injury ...
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A material flow or life cycle analysis perspective for the water-energy-food nexus assessment of organisations? a comparative study
(2024)Nowadays, food production systems play a relevant role as the steady increase of global population and food demand. The water-energy-food (WEF) nexus is a suitable approach to tackle resources management associated with ...
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A mathematical model and simulation scenarios for T and B cells immune response to severe acute respiratory syndrome-coronavirus-2
(2023)Severe acute respiratory syndrome coronavirus is a type 2 highly contagious, and transmissible among humans; the natural human immune response to severe acute respiratory syndrome-coronavirus-2 combines cell-mediated ...
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A mesoscale modeling analysis of green roof impact in the thermal field in the mediterranean Chilean urban areas
(2023)In the smart cities context, using green roofs can contribute to making cities more resilient, mitigating effects in the urban thermal field, such as urban heat island. In addition, mesoscale models of weather forecasting ...
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A method to construct fruit maturity color scales based on support machines for regression: Application to olives and grape seeds
Mora, Marco
; ; ; ; Fredes, Claudio (2015)
Color scales are a powerful tool used in agriculture for estimate maturity of fruits. Fruit maturity is an important parameter to determine the harvest time. Typically, to obtain the maturity grade, a human expert visually ...
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A method to estimate grape phenolic maturity based on seed images
; Mora, Marco; Fredes, Claudio (2014)
The timing of the grape harvest has a strong impact on wine quality. A recent line of studies proposes visual seed inspection by a trained expert to determine Phenolic Maturity. In this paper a method is presented to ...
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A model based on clusters of similar color and NIR to estimate oil content of single olives
Fredes, Claudio; ; ; Mora, Marco ; ; ; (2021)
Lipid extraction using the traditional, destructive Soxhlet method is not able to measure oil content (OC) on a single olive. As the color and near infrared spectrum are key parameters to build an oil estimation model (EM), ...
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A model for incompressible fluids using finite element methods for the Brinkman problem
(2020)The partial differential equations for fluid flow dynamics based on the Brinkman equations, written in terms of velocity-vorticity and pressure in three dimensions, are essential for predicting climate, ocean currents, ...
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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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A multi-directional gradient with bi-geometric calculus to detect contours in images with multiplicative noise
; Mora, Marco; (2018)
In this paper a new operator is presented for the detection of contours in images with multiplicative noise, by using the operations introduced in the bi-geometric calculus, since recent results in the literature show that ...
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A multilayer shallow water model for polydisperse reactive sedimentation
(2024)A three-dimensional model of polydisperse reactive sedimentation is developed by means of a multilayer shallow water approach. The model consists of a variety of solid particles of different sizes and densities, and ...
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A new approach to the concept of linearity. Some elements for a multiplicative linear algebra
(2020)An arithmetic based on the multiplication is the base of the Bigeometric (and Multiplicative) Calculus, a type of non-Newtonian Calculus which has had uses in the digital processing of images. In this work, we present the ...
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A new class of differential equations with impulses at instants dependent on preceding pulses. Applications to management of renewable resources
Cordova-Lepe, Fernando; ; (2012)
In this paper, a new type of mathematical model to represent certain processes with impulsive dynamic behavior is introduced. The main assumption is that the next impulse time is determined by three fundamental elements: ...
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A new contributory pension model – evidence from Chile
(2024)We develop a model of individual account (IA) pension systems that considers the wage distribution of the economy and models the density of contributions or so-called “Lagunas” (gaps) as a function of wage inequality. ...
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A new COVID-19 detection method based on CSK/QAM visible light communication and machine learning
(2023)This article proposes a novel method for detecting coronavirus disease 2019 (COVID-19) in an underground channel using visible light communication (VLC) and machine learning (ML). We present mathematical models of COVID-19 ...