Search results for "PCG"

showing 3 items of 3 documents

An open access database for the evaluation of heart sound algorithms

2016

In the past few decades, analysis of heart sound signals (i.e. the phonocardiogram or PCG), especially for automated heart sound segmentation and classification, has been widely studied and has been reported to have the potential value to detect pathology accurately in clinical applications. However, comparative analyses of algorithms in the literature have been hindered by the lack of high-quality, rigorously validated, and standardized open databases of heart sound recordings. This paper describes a public heart sound database, assembled for an international competition, the PhysioNet/Computing in Cardiology (CinC) Challenge 2016. The archive comprises nine different heart sound databases…

EngineeringResearch groupsDatabases FactualPhysiologySpeech recognition0206 medical engineeringphonocardiogram (PCG)Biomedical EngineeringBiophysicsMEDLINE02 engineering and technologycomputer.software_genreArticleheart soundAccess to InformationTECNOLOGIA ELECTRONICACoronary artery diseasePhysioNet/CinC Challenge[INFO.INFO-TS]Computer Science [cs]/Signal and Image ProcessingPhysiology (medical)heart sound classification0202 electrical engineering electronic engineering information engineeringmedicineHumansSegmentationHeart valveSound (geography)databasePhonocardiogramgeographygeography.geographical_feature_categoryDatabasebusiness.industryPhonocardiographySignal Processing Computer-Assistedmedicine.disease020601 biomedical engineeringHeart Soundsmedicine.anatomical_structureheart sound segmentationHeart sounds020201 artificial intelligence & image processingbusinessAlgorithmcomputerAlgorithms
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Establishment of Polycomb silencing requires a transient interaction between PC and ESC

2001

Two distinct types of Polycomb complexes have been identified in flies and in vertebrates, one containing ESC and one containing PC. Using LexA fusions, we show that PC and ESC can establish silencing of a reporter gene but that each requires the presence of the other. In early embryonic extracts, we find PC transiently associated with ESC in a complex that includes EZ, PHO, PH, GAGA, and RPD3 but not PSC. In older embryos, PC is found in a complex including PH, PSC, GAGA, and RPD3, whereas ESC is in a separate complex including EZ, PHO, and RPD3.

Polycomb-Group ProteinsRepressorSettore BIO/11 - Biologia MolecolarePlasma protein bindingBiologyPolycomb silencingResearch CommunicationGeneticsPolycomb-group proteinsAnimalsDrosophila ProteinsGene silencingGene Silencingreproductive and urinary physiologyPolycomb Repressive Complex 1Reporter geneurogenital systemPolycomb Repressive Complex 2PcG complexEmbryoHistone-Lysine N-MethyltransferasePrecipitin TestsEmbryonic stem cellMolecular biologyRepressor Proteinsembryonic structuresInsect ProteinsDrosophilaRepressor lexAbiological phenomena cell phenomena and immunityESC/PHOProtein BindingDevelopmental BiologyGenes & Development
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Analysis and recognition of vibratory signals : contribution to the treatment and analysis of cardiac signals for telemedecine

2014

The heart is a muscle. Its mechanical operation is like a pump charged for distributing and retrieving the blood in the lungs and cardiovascular system. Its electrical operation is regulated by the sinus node, a pacemaker or electric regulator responsible for triggering the natural heart beats that punctuate the functioning of the body.Doctors monitor the electromechanical functioning of the heart by recording an electrical signal called an electrocardiogram (ECG) or an audible signal : the phonocardiogram (PCG). The analysis and processing of these two signals are essential for diagnosis, to help detect anomalies and cardiac pathologies.The objective of this thesis is to develop signal pro…

Signal processingECGEMDTraitement du signalEDAPCG[SPI.SIGNAL] Engineering Sciences [physics]/Signal and Image processing
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