Teodoro Córdova–Fraga
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View article: Clinical, Biochemical, and Psychological Predictors of Metabolic Syndrome in Climacteric Women
Clinical, Biochemical, and Psychological Predictors of Metabolic Syndrome in Climacteric Women Open
Background/Objectives: To identify clinical, biochemical, and psychological factors associated with metabolic syndrome (MS) in climacteric women and to determine independent predictors of MS across menopausal stages. Methods: A cross-secti…
View article: Desempeño de la segmentación automática de líquido libre abdominal en tomografía con redes neuronales
Desempeño de la segmentación automática de líquido libre abdominal en tomografía con redes neuronales Open
Objetivo: Crear una herramienta automatizada, de segmentación rápida para líquido libre peritoneal usando aprendizaje profundo. Método: Se recopiló un conjunto de datos de imágenes de tomografía computarizada de 30 pacientes con líquido li…
View article: Heart Rhythm Correction Device Using Non-invasive Stimulation of Vagus Nerve and Cervical Sympathetic Ganglia
Heart Rhythm Correction Device Using Non-invasive Stimulation of Vagus Nerve and Cervical Sympathetic Ganglia Open
The design and construction process of a non-invasive operating device aimed at regulating heart rate in patients with arrhythmias is presented. The methodology involved a combination of electronic devices, biomedical instrumentation and p…
View article: Numerical modeling of the upper and lower major temporal arcade in fundus images using genetic algorithms
Numerical modeling of the upper and lower major temporal arcade in fundus images using genetic algorithms Open
In this paper, a new numerical modeling methodology is presented for the thickest vein in the retina, the major temporal arcade, since previous studies have shown that modifications in its opening, tortuosity and even thickness are indicat…
View article: Classification of Long COVID Pulmonary Fibrosis Based on Computed Tomography in Mexican Patients
Classification of Long COVID Pulmonary Fibrosis Based on Computed Tomography in Mexican Patients Open
In this study, we focus on addressing the prolonged effects of COVID-19, specifically pulmonary fibrosis, through automated classification of computed tomography (CT) images from patients in León, GTO, Mexico. We employed a convolutional n…
View article: Vortex magnetic induction: Mathematical, geometric and experimental characterization.
Vortex magnetic induction: Mathematical, geometric and experimental characterization. Open
Some current energy transfer modules and magnetic stimulation systems with vortex fields are mostly composed of a Rodin coil. It has been hypothesized that the most significant changes in the biological system stimulated with vortex magnet…
View article: Applications of Artificial Intelligence in the Classification of Magnetic Resonance Images: Advances and Perspectives
Applications of Artificial Intelligence in the Classification of Magnetic Resonance Images: Advances and Perspectives Open
This chapter examines the advances and perspectives of the applications of artificial intelligence (AI) in the classification of magnetic resonance (MR) images. It focuses on the development of AI-based automatic classification models that…
View article: Deep Learning-based approach to classify pneumonia on chest radiographs
Deep Learning-based approach to classify pneumonia on chest radiographs Open
The diagnosis of pneumonia by X-rays is a widespread practice in the early detection of the disease and initiation of timely treatment. Automatic classification models using convolutional neural networks (CNN) have proven to be an effectiv…
View article: Automatic image processing to identify post-COVID conditions by using deep learning
Automatic image processing to identify post-COVID conditions by using deep learning Open
In the present research, a supervised learning classification methodology is proposed to identify post-COVID conditions. Image processing and deep learning methods were employed to analyze a data set provided by the High Specialty Medical …
View article: Preliminary Design of a Compact Superconducting Solenoid for Material Science Applications
Preliminary Design of a Compact Superconducting Solenoid for Material Science Applications Open
Innovation in new materials is strongly associated with different techniques and technological developments used on the growth and characterization of samples. Recent studies suggest that one could increase the preferable orientation of th…
View article: Review of: "An Experimental Method to Calculate Average Metal Ions Charge by Electrolysis at Different Temperatures"
Review of: "An Experimental Method to Calculate Average Metal Ions Charge by Electrolysis at Different Temperatures" Open
An Experimental Method to Calculate Average Metal Ions Charge by Electrolysis at Different Temperatures It is an interesting study nevertheless, a lot of work should be added 1: The Introduction is too small, a wide subject review is deman…
View article: AB1006 PULMONARY MANIFESTATIONS OF AXIAL SPONDYLOARTHRITIS (AXSPA): A SYSTEMATIC LITERATURE REVIEW
AB1006 PULMONARY MANIFESTATIONS OF AXIAL SPONDYLOARTHRITIS (AXSPA): A SYSTEMATIC LITERATURE REVIEW Open
View article: Analysis of patients with dementia: Use of computer tomographic and vascular risk
Analysis of patients with dementia: Use of computer tomographic and vascular risk Open
Background: The diagnosis of dementia is complicated due to the frequent coexistence of degenerative changes and the lack of uniformity in diagnostic criteria. Objective: To determine the correlation between computed tomography and risk fa…
View article: Heart rate behavior on the menopause stages
Heart rate behavior on the menopause stages Open
Introduction: The behavior of the heart rate in the different menopause stages is a parameter that should be considered in the high incidence of cardiovascular disease. Objective: A comparative study of 200 women aged 25 to 57 is presented…
View article: Strain engineering of the magnetic anisotropy and magnetic moment in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>NdFeO</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:math> epitaxial thin films
Strain engineering of the magnetic anisotropy and magnetic moment in epitaxial thin films Open
Strain engineering is a powerful mean for tuning the various functionalities of ABO3 perovskite oxide thin films. Rare-earth orthoferrite RFeO3 materials such as NdFeO3 (NFO) are of prime interest because of their intriguing magnetic prope…
View article: A Ferrofluid with High Specific Absorption Rate Prepared in a Single Step Using a Biopolymer
A Ferrofluid with High Specific Absorption Rate Prepared in a Single Step Using a Biopolymer Open
An exhaustive characterization of the physicochemical properties of gum arabic (GA)-coated Fe3O4 magnetic nanoparticles was conducted in this work. These nanoparticles were obtained via the in-situ coprecipitation method (a fast single-ste…
View article: Spin-lattice coupling in an epitaxial NdFeO3 thin film
Spin-lattice coupling in an epitaxial NdFeO3 thin film Open
View article: Machine Learning for the Analysis of Conductivity From Mono Frequency Electrical Impedance Mammography as a Breast Cancer Risk Factor
Machine Learning for the Analysis of Conductivity From Mono Frequency Electrical Impedance Mammography as a Breast Cancer Risk Factor Open
Computational approaches have been used for analyzing risk factors together with conventional mammograms for breast cancer detection. Currently, other screening methods like electro-impedance mammography are available. Notwithstanding, as …
View article: Cardiac output at skin level: PPC vs. Fick method
Cardiac output at skin level: PPC vs. Fick method Open
Hemodynamic monitoring is essential in the therapeutic guide of the critical patient.The pulsomagneto cardiac pressure gauge (PPC), is a non-invasive device, which records the cardiac output (CO) at the skin level and continuously.The obje…
View article: Register to skin level of the dicrotic wave: ultrasound vs. biomagnetism
Register to skin level of the dicrotic wave: ultrasound vs. biomagnetism Open
View article: Quantitative Pharmaceutical Analysis Based on the PCA of Raman Spectra
Quantitative Pharmaceutical Analysis Based on the PCA of Raman Spectra Open
In the present work we examine the distribution of ciprofloxacin drug as an active ingredient in tablets samples from eight different laboratories. Additionally, control samples with different concentration were prepared for calibration. R…
View article: Modification of the Marching Cubes Algorithm to Obtain a 3D Representation of a Planar Image
Modification of the Marching Cubes Algorithm to Obtain a 3D Representation of a Planar Image Open
The registration of a 3D model over an image can be seen as the alignment of visual correspondences extracted from these two data. This is a challenging task and it is even more complex when the two images have a different modality. This p…
View article: Use of an Electroacoustic Device and Bone Densitometry in the Diagnosis of Osteoporosis: Utility, Validation, and Comparison
Use of an Electroacoustic Device and Bone Densitometry in the Diagnosis of Osteoporosis: Utility, Validation, and Comparison Open
According to the World Health Organization (WHO), men and women older than 50 years present osteoporosis with reduced bone mass, this is one of the major impact morbidities causes in the world. It may be present in the hip, spine, and wris…
View article: Evaluation of micronuclei in oral mucosa of individuals exposed to ionizing radiation: a pilot study from Celaya, México
Evaluation of micronuclei in oral mucosa of individuals exposed to ionizing radiation: a pilot study from Celaya, México Open
Introduction: Occupational exposure to ionizing radiation can potentially lead to adverse health effects, including cancer and genetic defects. Genetic damage caused by radiation can be detected if micronuclei are observed. The objective o…
View article: Magnetic Stimulation on Human Blood Electromotive force analysis
Magnetic Stimulation on Human Blood Electromotive force analysis Open
In this work a comparative theoretical analysis vs. experimental study on human blood under a magnetic field stimulation is presented. Twenty samples of leukoreduced human blood were stimulated with an alternant magnetic field using a Helm…
View article: Validity and reliability of electroacoustic probe for diagnosis of developmental dysplasia of the hip
Validity and reliability of electroacoustic probe for diagnosis of developmental dysplasia of the hip Open
Open Science framework https://osf.io/kpf5s/?view_only=0a9682c6w1c842ad8e1d9a66e8dcf038.
View article: Homotopy perturbation transform method for nonlinear differential equations involving to fractional operator with exponential kernel
Homotopy perturbation transform method for nonlinear differential equations involving to fractional operator with exponential kernel Open
This work presents the homotopy perturbation transform method for nonlinear fractional partial differential equations of the Caputo-Fabrizio fractional operator. Perturbative expansion polynomials are considered to obtain an infinite serie…
View article: Bateman–Feshbach Tikochinsky and Caldirola–Kanai Oscillators with New Fractional Differentiation
Bateman–Feshbach Tikochinsky and Caldirola–Kanai Oscillators with New Fractional Differentiation Open
In this work, the study of the fractional behavior of the Bateman–Feshbach–Tikochinsky and Caldirola–Kanai oscillators by using different fractional derivatives is presented. We obtained the Euler–Lagrange and the Hamiltonian formalisms in…
View article: Ionizing Radiation and Redox Balance in Diagnostic Radiology Personnel
Ionizing Radiation and Redox Balance in Diagnostic Radiology Personnel Open
View article: Quantum-mechanical aspects of magnetic resonance imaging
Quantum-mechanical aspects of magnetic resonance imaging Open
"The Magnetic Resonance Imaging (MRI) is a non-invasive technique which uses the physical phenomenon of nuclear magnetic resonance to obtain structural and compositional information about human body regions. In this imaging study we use th…