Search results for "High amplitude"

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Improving the analysis of biogeochemical patterns associated with internal waves in the strait of Gibraltar using remote sensing images

2018

High Amplitude Internal Waves (HAIWs) are physical processes observed in the Strait of Gibraltar (the narrow channel between the Atlantic Ocean and the Mediterranean Sea). These internal waves are generated over the Camarinal Sill (western side of the strait) during the tidal outflow (toward the Atlantic Ocean) when critical hydraulic conditions are established. HAIWs remain over the sill for up to 4 h until the outflow slackens, being then released (mostly) towards the Mediterranean Sea. These have been previously observed using Synthetic Aperture Radar (SAR), which captures variations in surface water roughness. However, in this work we use high resolution optical remote sensing, with the…

0106 biological sciencesSynthetic aperture radargeographygeography.geographical_feature_category010504 meteorology & atmospheric sciencesStrait of GibraltarHICO010604 marine biology & hydrobiologyMultispectral imageHigh amplitude internal wavesHyperspectral imagingAquatic ScienceInternal waveOceanography01 natural sciencesMediterranean seaAlgeciras baySillOutflowSatelliteSentinel-2Geology0105 earth and related environmental sciencesRemote sensingEstuarine, Coastal and Shelf Science
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Pacemaker therapy in premature children with high degree AV block.

1998

The smallest pacemaker pulse generator and a steroid-eluting bipolar epicardial lead were implanted in two premature children with symptomatic AV block. Stable capture threshold and high amplitude evoked response electrogram resulted in normal function of the pacemaker Autocapture algorithm, which adjusts output 0.3 V above the measured capture threshold. Autocapture had previously been used only with endocardial leads. Longer-term observation is required.

Epicardial leadMalePacemaker ArtificialHigh amplitudebusiness.industryEpicardial pacingInfant NewbornGeneral MedicineTwins MonozygoticPacemaker pulse generatorElectrodes ImplantedHeart BlockAnesthesiaBlock (telecommunications)MedicineHumansCardiology and Cardiovascular MedicinebusinessInfant PrematurePacing and clinical electrophysiology : PACE
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