Search results for "Electrical Equipment and Supplies"

showing 3 items of 3 documents

Efficacy of 3 toothbrush treatments on plaque removal in orthodontic patients assessed with digital plaque imaging: a randomized controlled trial.

2013

Good oral hygiene is a challenge for orthodontic patients because food readily becomes trapped around the brackets and under the archwires, and appliances are an obstruction to mechanical brushing. The purpose of this study was to compare plaque removal efficacy of 3 toothbrush treatments in orthodontic subjects.This was a replicate-use, single-brushing, 3-treatment, examiner-blind, randomized, 6-period crossover study with washout periods of approximately 24 hours between visits. Forty-six adolescent and young adult patients with fixed orthodontics from a university clinic in Germany were randomized, based on computer-generated randomization, to 1 of 3 treatments: (1) oscillating-rotating …

AdultMaleToothbrushingRandomizationAdolescentPlaque removalElectrical Equipment and SuppliesDental PlaqueDentistryOrthodonticsManual toothbrushlaw.inventionYoung AdultRandomized controlled trialOrthodontic ApplianceslawImage Processing Computer-AssistedMedicineHumansSingle-Blind MethodChildFluorescent DyesOrthodonticsCross-Over Studiesbusiness.industryBrushEquipment DesignCrossover studyTreatment OutcomePhotography DentalPlaque imagingFemaleFluoresceinToothbrushbusinessAmerican journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics
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Self-assembled monolayers based spintronics: from ferromagnetic surface functionalization to spin-dependent transport.

2016

Chemically functionalized surfaces are studied for a wide range of applications going from medicine to electronics. Whereas non-magnetic surfaces have been widely studied, functionalization of magnetic surfaces is much less common and has almost never been used for spintronics applications. In this article we present the functionalization of La2/3Sr1/3MnO3, a ferromagnetic oxide, with self-assembled monolayers for spintronics. La2/3Sr1/3MnO3 is the prototypical half-metallic manganite used in spintronics studies. First, we show that La2/3Sr1/3MnO3 can be functionalized by alkylphosphonic acid molecules. We then emphasize the use of these functionalized surfaces in spintronics devices such a…

Phosphorous AcidsSurface PropertiesElectrical Equipment and SuppliesNanotechnologyElectrons02 engineering and technology010402 general chemistry01 natural sciencesMolecular engineeringLanthanumMonolayerGeneral Materials ScienceAlkylchemistry.chemical_classificationSpintronicsMagnetic PhenomenaSelf-assembled monolayerOxides021001 nanoscience & nanotechnologyCondensed Matter Physics3. Good health0104 chemical sciencesTunnel magnetoresistancechemistryFerromagnetismManganese CompoundsStrontiumMagnetsSurface modification0210 nano-technologyJournal of physics. Condensed matter : an Institute of Physics journal
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QA of dynamic MLC based on EPID portal dosimetry.

2010

Abstract Purpose Dynamic delivery of intensity modulated beams (dIMRT) requires not only accurate verification of leaf positioning but also a control on the speed of motion. The latter is a parameter that has a major impact on the dose delivered to the patient. Time consumed in quality assurance (QA) procedures is an issue of relevance in any radiotherapy department. Electronic portal imaging dosimetry (EPID) can be very efficient for routine tests. The purpose of this work is to investigate the ability of our EPID for detecting small errors in leaf positioning, and to present our daily QA procedures for dIMRT based on EPID. Methods and materials A Varian 2100 CD Clinac equipped with an 80 …

Quality ControlReproducibilityComputer sciencebusiness.industryElectrical Equipment and SuppliesSmall deviationsEpid dosimetryBiophysicsGeneral Physics and AstronomyGeneral MedicineLinear particle acceleratorPortal imagingGap widthDosimetryRadiology Nuclear Medicine and imagingbusinessRadiometryQuality assuranceSimulationBiomedical engineeringPhysica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB)
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