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97 resultados encontrados.

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A hybrid prophet-based framework for multimodal forecasting with market sentiment signals
Artículo
Acceso abierto Artículo DOAJ
Rihab Najem et al · Springer · 2026 · ISSN 2731-0809
Abstract Financial time series forecasting is traditionally based on historical price patterns, often overlooking exogenous and behavioral variables that can significantly affect market movements. In this study, we enhan...
LCC TENDOkNvbXB1dGF0aW9uYWwgbGluZ3Vpc3RpY3MuIE5hdHVyYWwgbGFuZ3VhZ2UgcHJvY2Vzc2luZw~~; LCC:Electronic computers. Computer sciIdioma eng
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Open Access
Adaptive local iterative filtering: A promising technique for the analysis of nonstationary signals
Artículo
Acceso abierto Artículo CONICET Digital
Piersanti, M. et al · American Geophysical Union · 2017 · ISSN 1031-1046
Many real-life signals and, in particular, in the space physics domain, exhibit variations acrossdifferent temporal scales. Hence, their statistical momenta may depend on the time scale at which the signal is studied. To...
Idioma eng
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Open Access
Artificial intelligence-based analysis of visual electrophysiological signals for clinical interpretation support
Artículo
Material complementario disponible Artículo DOAJ
Mathieu Seraphim et al · Frontiers Media S.A · 2026 · ISSN 1662-453X
IntroductionVisual electrophysiology, including electroretinograms (ERG) and visual evoked potentials (VEP), provides a real-time functional assessment of retinal and post-retinal pathways, complementing structural imagi...
LCC LCC:Neurosciences. Biological psychiatry. NeuropsychiatryIdioma eng
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Effect of Weather Condition on QoCS Beam of Downlink Microwave Radio Signals for High-Definition Digital Terrestrial Link over Abuja, Nigeria
Artículo
Acceso abierto Artículo DOAJ
Joseph S. Ojo et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · 2025 · ISSN 2179-1074
Abstract High-Definition Digital Terrestrial Television (HDDTT) replaces analogue, requiring further research on propagation links due to atmospheric variables potentially disrupting signals during uplink and downlink re...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
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Open Access
Efficient Deep Spiking Neural Network for Complex EEG Signals
Artículo
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Elham Amirizadeh et al · IEEE · 2026 · ISSN 2169-3536
Spiking neural networks (SNNs) offer a biologically inspired, energy-efficient alternative to conventional artificial neural networks (ANNs). However, deep SNNs struggle to process complex EEG signals because their spike...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
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Open Access
Fast statistical model-based classification of epileptic EEG signals
Artículo
Material complementario disponible Artículo RI ITBA
Quintero-Rincón, Antonio et al · RI ITBA · 2019 · ISSN 0208-5216
"This paper presents a supervised classification method to accurately detect epileptic brain activity in real-time from electroencephalography (EEG) data. The proposed method has three main strengths: it has low computat...
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Geographical variation of chemical signals and odor discrimination in the great Himalayan leaf-nosed bat (Hipposideros armiger)
Artículo
Material complementario disponible Artículo DOAJ
Congnan Sun et al · BMC · 2026 · ISSN 1741-7007
Abstract Background Signal divergence and sensory preferences may cause reproductive isolation and eventually speciation between animal populations. These patterns are particularly well known in systems with acoustic or ...
LCC LCC:Biology (General)Idioma eng
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Geometry optimization for application of radio frequency signals on diamond samples
Artículo
Acceso abierto Artículo DOAJ
Ricardo R. Wolf Cruz et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · ISSN 2179-1074
This work describes the design and optimization of a printed circuit board containing a rectangular half-loop coil designed to apply radio frequency signals on micrometric diamond crystals. The structure was optimized to...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
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Open Access
How resilience signals abrupt declines in vegetation productivity: globally uneven yet predictable
Artículo
Material complementario disponible Artículo DOAJ
Maohong Wei et al · SpringerOpen · 2026 · ISSN 2192-1709
Abstract Background Abrupt declines in vegetation productivity risk irreversible transitions. However, the magnitude of such declines (abruptness)—a key determinant ranging from nonlinear reversible transitions to nonl...
LCC TENDOkVjb2xvZ3k~Idioma eng
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Hybrid wavelet transform and deep learning method for fault diagnosis of transformer vibration signals
Artículo
Acceso abierto Artículo DOAJ
Yanbo Wang et al · Elsevier · 2026 · ISSN 1110-0168
Power transformers are critical components of power systems, and their safe and reliable operation is essential for both industrial and residential applications. Real-time condition monitoring and early fault detection a...
LCC LCC:Engineering (General). Civil engineering (General)Idioma eng
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Open Access
Study on epileptic seizure detection in EEG signals using largest Lyapunov exponents and logistic regression
Artículo
Material complementario disponible Artículo RI ITBA
Quintero-Rincón, Antonio et al · RI ITBA · 2020 · ISSN 0329-5257
"Seizure detection plays a central role in most aspects of epilepsy care. Understanding the complex epileptic signals system is a typical problem in electroencephalographic (EEG) signal processing. This problem requires...
Idioma es
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The Expression of Sphingosine-1 Phosphate Receptor-1 in Chronic Lymphocytic Leukemia Cells Is Impaired by Tumor Microenvironmental Signals and Enhanced by Piceatannol and R406
Artículo
Acceso abierto Artículo CONICET Digital
Borge, Mercedes et al · American Association of Immunologists · 2014 · ISSN 3165-3174
Chronic lymphocytic leukemia (CLL) is characterized by the progressive accumulation of clonal B lymphocytes. Proliferation occurs in lymphoid tissues upon interaction of leukemic cells with a supportive microenvironment....
Idioma eng
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Open Access
Towards a method to anticipate dark matter signals with deep learning at the LHC
Artículo
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Arganda Carreras, Ernesto et al · SciPost Foundation · 2021 · ISSN 2542-4653
We study several simplified dark matter (DM) models and their signatures at the LHC using neural networks. We focus on the usual monojet plus missing transverse energy channel, but to train the algorithms we organize the...
Idioma eng
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Open Access
Spike-and-wave detection in epileptic signals using cross-correlation and decision trees
Artículo
Material complementario disponible Artículo RI ITBA
Quintero-Rincón, Antonio et al · RI ITBA · 2020
"Identify spike-and-waves patterns in epileptic signals is a typical problem in electroencephalographic (EEG) signal processing. In this paper we propose cross-correlation coupled with decision tree model as new method ...
Idioma en
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A CMOS UWB transmitter with Vivaldi Array for Ultra-fast Beam steering microwave radar
Artículo
Acceso abierto Artículo DOAJ
Alexandre M. De Oliveira et al · Sociedade Brasileira de Microondas e Optoeletrônica e Sociedade Brasileira de Eletromagnetismo · ISSN 2179-1074
This work presents a new Ultra Wide Band (UWB) beamforming fifth-order derivative Gaussian pulse transmitter with dual small Vivaldi antennas for remote acquisition of vital signals in impulse radar applications. The sys...
LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng
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Open Access
Exploring principal component analysis and convolutional neural network (PCA-CNN) based architecture for enhanced emotion classification in EEG signal extraction
Artículo
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Sheetal Patil et al · Springer · 2026 · ISSN 3004-9261
Abstract The current work on emotion recognition considering EEG signals has attracted significant attention due to its advantages in fields like mental health, neural computing, and human-computer interaction. Nonethele...
LCC LCC:Science (General)Idioma eng
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Open Access
MGO-CRNN: a bio-inspired deep learning framework for accurate phonocardiogram classification
Artículo
Acceso abierto Artículo DOAJ
Asmaa Ameen et al · SpringerOpen · 2026 · ISSN 2196-1115
Abstract Accurate classification of phonocardiogram (PCG) signals is vital for the early detection of cardiovascular diseases (CVDs), a leading cause of global mortality. However, conventional machine learning and deep l...
LCC TENDOkNvbXB1dGVyIGVuZ2luZWVyaW5nLiBDb21wdXRlciBoYXJkd2FyZQ~~; TENDOkluZm9ybWF0aW9uIHRlY2hub2xvZ3k~; LCC:Electronic compuIdioma eng
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SPHT-LSTM: a novel industrial equipment condition prediction method
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Bo Hu et al · Nature Portfolio · 2026 · ISSN 2045-2322
Abstract Production safety and efficiency depends on the reliability of the critical components in industrial equipment. However, signals measured by sensors may have complicated nonlinear and long-term sequential dynami...
LCC LCC:Medicine; TENDOlNjaWVuY2U~Idioma eng
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A fluorescent reporter protein containing AtRMR1 domains is targeted to the storage and central vacuoles in Arabidopsis thaliana and tobacco leaf cells
Artículo
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Scabone, Camila Maria et al · Springer · 2011 · ISSN 1823-1833
To develop a new strategy to target recombinant proteins to the vacuolar storage system in transgenic plants, the ability of the transmembrane and cytosolic domains of Arabidopsis receptor homology-transmembrane-RING H2-...
Idioma eng
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Causal Shannon-Fisher characterization of motor/imagery movements in EEG
Artículo
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Baravalle, Román et al · Molecular Diversity Preservation International · 2018 · ISSN 1099-4300
The electroencephalogram (EEG) is an electrophysiological monitoring method that allows us to glimpse the electrical activity of the brain. Neural oscillations patterns are perhaps the best salient feature of EEG as they...
Idioma eng
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Open Access
Sexual pheromone modulates the frequency of cytosolic Ca2+ bursts in Saccharomyces cerevisiae
Artículo
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Carbo, Natalia et al · American Society for Cell Biology · 2016 · ISSN 1059-1524
Transient and highly regulated elevations of cytosolic Ca2+ control a variety of cellular processes. Bulk measurements using radioactive Ca2+ and the luminescent sensor aequorin have shown that in response to pheromone, ...
Idioma eng
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Open Access
A MAC protocol for Underwater Sensors Networks
Artículo
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Santos, Rodrigo Martin et al · Springer · 2015 · ISSN 0302-9743
Underwater sensor networks are becoming an important field of re- search, because of its everyday increasing application scope. Examples of their application areas are environmental and pollution monitoring (mainly oil s...
Idioma eng
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A Novel 6-DOF Force-Sensed Human-Robot Interface for an Intuitive Teleoperation
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Zihao Li et al · KeAi Communications Co., Ltd · 2022 · ISSN 1000-9345
Abstract The teleoperation of a 6 degrees-of-freedom (DOF) manipulator is one of the basic methods to extend people’s capabilities in the wide variety of applications. The master interface based on the force/torque (FT...
LCC LCC:Ocean engineering; TENDOk1lY2hhbmljYWwgZW5naW5lZXJpbmcgYW5kIG1hY2hpbmVyeQ~~Idioma eng
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A Novel Approach to Analyzing Wrestling Skills: Multidimensional Recurrence Quantification Analysis of Muscle Activity
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Kazem Esfandiarian-Nasab et al · Shiraz University of Medical Sciences · 2026 · ISSN 2345-6167
Background: As athletes develop, their motor patterns evolve from variable to adaptive neuromuscular control strategies, enabling precise execution of complex movements. Traditional linear biomechanical analyses of wrest...
LCC LCC:Therapeutics. PharmacologyIdioma eng
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