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Mostrando publicaciones 61-80 de 4921
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A non-Newtonian gradient for contour detection in images with multiplicative noise
(2012)In this paper, a new operator for contour detection in images with multiplicative noise is presented. Traditional methods of edge detection, as those based in gradient operator or measures of variance, follow a logic and ...
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A novel and adaptive angle diversity-based receiver for 6g underground mining vlc systems
(2022)Visible light communication (VLC) is considered an enabling technology for future 6G wireless systems. Among the many applications in which VLC systems are used, one of them is harsh environments such as Underground ...
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A novel computational platform for the propagation of nuclear data uncertainties through the fuel cycle code ANICCA
(2021)This paper presents the first results of a computational platform dedicated to the propagation of nuclear data covariances, all the way to fuel cycle scenario observables. Such platform, based on in-house codes developed ...
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A novel frequency domain visible light communication (VLC) three-dimensional trilateration system for localization in underground mining
(2019)A new visible light communication (VLC) system is proposed for localization in underground mining. Existent systems, such as global positioning system (GPS) and systems based on mobile communication, are generally not ...
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A novel strategy to classify chronic patients at risk: a hybrid machine learning approach
(2022)Various care processes have been affected by COVID-19. One of the most dramatic has been the care of chronic patients under medical supervision. According to the World Health Organization (WHO), a chronic patient has one ...
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A novel traffic prediction method using machine learning for energy efficiency in service provider networks
(2023)This paper presents a systematic approach for solving complex prediction problems with a focus on energy efficiency. The approach involves using neural networks, specifically recurrent and sequential networks, as the main ...
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A parallel computing method for the computation of the Moore-Penrose generalized inverse for shared-memory architectures
(2023)The computation of the Moore–Penrose generalized inverse is a commonly used operation in various fields such as the training of neural networks based on random weights. Therefore, a fast computation of this inverse is ...
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A peptide backbone stapling strategy enabled by the multicomponent incorporation of amide n-substituents
(2019)The multicomponent backbone N-modification of peptides on solid-phase is presented as a powerful and general method to enable peptide stapling at the backbone instead of the side chains. This work shows that a variety of ...
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A pilot 1-year follow-up randomised controlled trial comparing metacognitive training to psychoeducation in schizophrenia: effects on insight
(2023)Poor insight in schizophrenia spectrum disorders (SSD) is linked with negative outcomes. This single-centre, assessor-blind, parallel-group 1-year follow-up randomised controlled trial (RCT) tested whether metacognitive ...
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A positive relationship between exposure to heavy metals and development of chronic diseases: A case study from Chile
(2021)Chile is a mining country, where waste mining is frequently found in the vicinity of inhabited areas. To explore the association between metal exposure and alterations in glucose metabolism, inflammatory status, and oxidative ...
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A preliminary investigation into the effects of active interferential current therapy and placebo on pressure pain sensitivity: A random crossover placebo controlled study
(2011)Objective (1) To determine the effect of active and placebo interferential current on muscle pain sensitivity using an experimental mechanically induced pain model. (2) To evaluate the predictive role of expectations, ...
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A probabilistic patient scheduling model with time variable slots
(2020)One of the current challenges faced by health centers is to reduce the number of patients who do not attend their appointments. The existence of these patients causes the underutilization of the center’s services, which ...
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A proposal for innovation in the teaching of analysis and modeling of business process: Case UCM
(2018)The reaccreditation of the career informatic engineering of the Universidad Católica del Maule left several lessons learned and challenges to improve the strategies and learning outcomes of the students, among them is the ...
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A pulse fishery model with closures as function of the catch: Conditions for sustainability
(2012)We present a model of single species fishery which alternates closed seasons with pulse captures. The novelty is that the length of a closed season is determined by the remaining stock size after the last capture. The ...
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A rapid and simple protocol for the isolation of bacteriophages from coastal organisms
(2019)This work details a protocol for recovering bacteriophages from intertidal sessile mussels and testing their lytic activity against pathogenic bacteria. Although bacteriophages were highly abundant in coastal filter-feeding ...
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A real-world effectiveness study comparing a priority appointment, an enhanced contact intervention, and a psychotherapeutic program following attempted suicide
(2019)Objective: To determine the comparative effectiveness of 3 real-practice preventive programs aimed at lowering the relapse risk following a suicide attempt: a single priority appointment with an outpatient psychiatrist, ...
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A replacement name for Hualpenia Mundaca, Parra & Vargas (Lepidoptera, Gracillariidae)
(2013)A replacement name for Hualpenia Mundaca, Parra & Vargas (Lepidoptera, Gracillariidae). Vihualpenia nom. nov. is proposed as a replacement name for Hualpenia Mundaca, Parra & Vargas, 2013 (Lepidoptera, Gracillariidae), in ...
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A review of convolutional neural network applied to fruit image processing
(2020)Agriculture has always been an important economic and social sector for humans. Fruit production is especially essential, with a great demand from all households. Therefore, the use of innovative technologies is of vital ...