Jove
Visualize
Contáctanos
JoVE
x logofacebook logolinkedin logoyoutube logo
ACERCA DE JoVE
Visión GeneralLiderazgoBlogCentro de Ayuda JoVE
AUTORES
Proceso de PublicaciónConsejo EditorialAlcance y PolíticasRevisión por ParesPreguntas FrecuentesEnviar
BIBLIOTECARIOS
TestimoniosSuscripcionesAccesoRecursosConsejo Asesor de BibliotecasPreguntas Frecuentes
INVESTIGACIÓN
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchivo
EDUCACIÓN
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualCentro de Recursos para ProfesoresSitio de Profesores
Términos y Condiciones de Uso
Política de Privacidad
Políticas

Videos de Conceptos Relacionados

Introduction to Test of Independence01:21

Introduction to Test of Independence

2.9K
In statistics, the term independence means that one can directly obtain the probability of any event involving both variables by multiplying their individual probabilities. Tests of independence are chi-square tests involving the use of a contingency table of observed (data) values.
The test statistic for a test of independence is similar to that of a goodness-of-fit test:
2.9K
Hypothesis Test for Test of Independence01:16

Hypothesis Test for Test of Independence

7.4K
The test of independence is a chi-square-based test used to determine whether two variables or factors are independent or dependent. This hypothesis test is used to examine the independence of the variables. One can construct two qualitative survey questions or experiments based on the variables in a contingency table. The goal is to see if the two variables are unrelated (independent) or related (dependent). The null and alternative hypotheses for this test are:
H0: The two variables (factors)...
7.4K
Model-Independent Approaches for Pharmacokinetic Data: Noncompartmental Analysis00:59

Model-Independent Approaches for Pharmacokinetic Data: Noncompartmental Analysis

326
Noncompartmental analyses offer an alternative method for describing drug pharmacokinetics without relying on a specific compartmental model. In this approach, the drug's pharmacokinetics are assumed to be linear, with the terminal phase log-linear. This assumption allows for simplified analysis and interpretation of the drug's behavior in the body.
One important characteristic of noncompartmental analyses is that drug exposure increases proportionally with increasing doses. This...
326
Cardiomyopathy II: Dilated Cardiomyopathy01:30

Cardiomyopathy II: Dilated Cardiomyopathy

492
Dilated cardiomyopathy, or DCM, is a progressive myocardial disorder characterized by ventricular chamber dilation and contractile dysfunction.EtiologyVarious factors can cause DCM, including hypertension and heavy alcohol intake, which contribute to the weakening and enlargement of the heart muscle. Viral infections, such as Coxsackievirus B, adenoviruses, and influenza, can lead to DCM by causing inflammation and damage to heart tissue. Certain chemotherapeutic agents, including daunorubicin,...
492
Law of Independent Assortment02:03

Law of Independent Assortment

62.4K
While Mendel’s Law of Segregation states that the two alleles for one gene are separated into different gametes, a different question of how different genes are inherited remains. For example, is the gene for tall plants inherited with the gene for green peas? Mendel asked this question by experimenting with a dihybrid cross; a cross in which both parents are homozygous for two distinct traits resulting in an F1 generation that are heterozygous for both traits.
62.4K
Analysis Methods of Pharmacokinetic Data: Model and Model-Independent Approaches01:14

Analysis Methods of Pharmacokinetic Data: Model and Model-Independent Approaches

499
Drug disposition in the body is a complex process and can be studied using two major approaches: the model and the model-independent approaches.
The model approach uses mathematical models to describe changes in drug concentration over time. Pharmacokinetic models help characterize drug behavior in patients, predict drug concentration in the body fluids, calculate optimum dosage regimens, and evaluate the risk of toxicity. However, ensuring that the model fits the experimental data accurately...
499

También podría leer

Artículos Relacionados

Artículos vinculados a este trabajo por autores compartidos, revista y gráfico de citas.

Ordenar por
Same author

Preterm birth and birth weight extremes are associated with periodontal disease and tooth loss in the ARIC study.

Scientific reports·2026
Same author

Temporal trends in mitral edge-to-edge repair for primary mitral regurgitation.

EuroIntervention : journal of EuroPCR in collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology·2026
Same author

Association of Subclinical Cardiac Remodeling With Incident Cancer in the MESA Cohort.

Journal of the American Heart Association·2026
Same author

Racial trends in outcomes and access to treatment for mitral regurgitation: a South London population cohort study.

Open heart·2026
Same author

Multi-chamber three-dimensional myocardial strain assessment by computed tomography: a comparison with speckle tracking echocardiography and association with pulmonary hypertension in severe aortic stenosis.

Frontiers in cardiovascular medicine·2026
Same author

The Clinical Role and Impact of Dobutamine Stress Echocardiography in Liver Transplantation.

Echocardiography (Mount Kisco, N.Y.)·2026
Same journal

Enhancing Volumetric Imaging in Linear-Array Photoacoustic Tomography: multiview fusion with deep learning.

IEEE transactions on bio-medical engineering·2026
Same journal

Robust Rule-based Heuristic Assistance Strategy for a Semi-Active Shoulder Exoskeleton Used in Overhead Work.

IEEE transactions on bio-medical engineering·2026
Same journal

Highly Accelerated 1-mm Isotropic 3D Chemical Exchange Saturation Transfer MRI Using Wave-Co-CAIPI at 5 Tesla.

IEEE transactions on bio-medical engineering·2026
Same journal

Systematic Evaluation of Hip Exoskeleton Assistance Parameters for Enhancing Gait Stability During Ground Slip Perturbations.

IEEE transactions on bio-medical engineering·2026
Same journal

SleepConFormer: A Single-Channel EEG Framework for Sleep Staging and Consciousness Assessment in Patients with Disorders of Consciousness.

IEEE transactions on bio-medical engineering·2026
Same journal

Modeling Partial and Total Support of Left Ventricular Assist Device for Discrete Hemodynamic Control Framework.

IEEE transactions on bio-medical engineering·2026
Ver todos los artículos relacionados

Video Experimental Relacionado

Updated: Jan 23, 2026

Multi-material Ceramic-Based Components – Additive Manufacturing of Black-and-white Zirconia Components by Thermoplastic 3D-Printing (CerAM - T3DP)
08:29

Multi-material Ceramic-Based Components – Additive Manufacturing of Black-and-white Zirconia Components by Thermoplastic 3D-Printing (CerAM - T3DP)

Published on: January 7, 2019

11.8K

MVICAD²: Análisis de Componentes Independientes Multivista con Retrasos y Dilataciones

Ambroise Heurtebise, Omar Chehab, Pierre Ablin

    IEEE transactions on bio-medical engineering
    |January 21, 2026
    PubMed
    Resumen
    Este resumen es generado por máquina.

    Presentamos el Análisis de Componentes Independientes Multivista con Retrasos y Dilataciones (MVICAD²), un novedoso método de aprendizaje automático para la neurociencia. MVICAD² modela con precisión las diferencias individuales de la actividad cerebral en estudios de grupo, mejorando el análisis de datos de magnetoencefalografía.

    Palabras clave:
    Análisis de componentes independientes multivistaAprendizaje automáticoMagnetoencefalografíaProcesamiento de señalesNeurociencia computacionalDinámica cerebralVariabilidad individualRetrasos temporalesDilataciones temporalesAnálisis de datos de grupo

    Más Videos Relacionados

    Quantification of Strain in a Porcine Model of Skin Expansion Using Multi-View Stereo and Isogeometric Kinematics
    14:14

    Quantification of Strain in a Porcine Model of Skin Expansion Using Multi-View Stereo and Isogeometric Kinematics

    Published on: April 16, 2017

    12.0K
    An In Vitro Dissolution Determination of Multi-Index Components in Tibetan Medicine Rhodiola Granules
    05:59

    An In Vitro Dissolution Determination of Multi-Index Components in Tibetan Medicine Rhodiola Granules

    Published on: November 4, 2022

    2.1K

    Videos de Experimentos Relacionados

    Last Updated: Jan 23, 2026

    Multi-material Ceramic-Based Components – Additive Manufacturing of Black-and-white Zirconia Components by Thermoplastic 3D-Printing (CerAM - T3DP)
    08:29

    Multi-material Ceramic-Based Components – Additive Manufacturing of Black-and-white Zirconia Components by Thermoplastic 3D-Printing (CerAM - T3DP)

    Published on: January 7, 2019

    11.8K
    Quantification of Strain in a Porcine Model of Skin Expansion Using Multi-View Stereo and Isogeometric Kinematics
    14:14

    Quantification of Strain in a Porcine Model of Skin Expansion Using Multi-View Stereo and Isogeometric Kinematics

    Published on: April 16, 2017

    12.0K
    An In Vitro Dissolution Determination of Multi-Index Components in Tibetan Medicine Rhodiola Granules
    05:59

    An In Vitro Dissolution Determination of Multi-Index Components in Tibetan Medicine Rhodiola Granules

    Published on: November 4, 2022

    2.1K

    Área de la Ciencia:

    • Neurociencia; Aprendizaje Automático; Procesamiento de Señales

    Sus antecedentes:

    • El análisis de datos de neurociencia multisujeto, como la magnetoencefalografía (MEG), es un desafío debido a la variabilidad individual.
    • Los métodos existentes, como el Análisis de Componentes Independientes Multivista (MVICA), asumen fuentes cerebrales idénticas entre sujetos, lo cual es a menudo demasiado restrictivo.
    • El Análisis de Componentes Independientes Multivista con Retrasos (MVICAD) tiene en cuenta las diferencias temporales pero no los efectos de dilatación temporal.

    Objetivo del estudio:

    • Desarrollar una técnica avanzada de aprendizaje automático, Análisis de Componentes Independientes Multivista con Retrasos y Dilataciones (MVICAD²), para analizar datos complejos de neurociencia.
    • Abordar las limitaciones de los métodos actuales de análisis de componentes independientes multivista incorporando tanto retrasos como dilataciones temporales.
    • Mejorar la estimación de la dinámica de la actividad cerebral en estudios de grupo, particularmente en magnetoencefalografía.

    Principales métodos:

    • Se propuso el modelo de Análisis de Componentes Independientes Multivista con Retrasos y Dilataciones (MVICAD²) que permite retrasos y dilataciones temporales específicos del sujeto en las fuentes cerebrales.
    • Se desarrolló una aproximación de forma cerrada de la verosimilitud del modelo.
    • Se emplearon técnicas de regularización y optimización para mejorar el rendimiento del modelo.

    Principales resultados:

    • Las simulaciones demostraron que MVICAD² supera significativamente a los métodos existentes de análisis de componentes independientes multivista.
    • Se validó la eficacia de MVICAD² en el conjunto de datos Cam-CAN, un conjunto de datos de neurociencia del mundo real.
    • Se mostró la relación entre los retrasos y dilataciones estimados y el proceso de envejecimiento.

    Conclusiones:

    • MVICAD² ofrece un enfoque más robusto y preciso para analizar datos de neurociencia multisujeto en comparación con métodos anteriores.
    • El modelo captura eficazmente la variabilidad individual en la dinámica cerebral, incluidos los retrasos y las dilataciones temporales.
    • Esta técnica tiene implicaciones significativas para la comprensión de los cambios relacionados con la edad en la actividad cerebral a partir de datos de MEG.