Search results for "Evaluation Studies as Topic"

showing 10 items of 108 documents

A QUANTITATIVE APPROACH TO THE EXPERIMENTAL TRANSMISSION SUCCESS OF ECHINOSTOMA FRIEDI (TREMATODA: ECHINOSTOMATIDAE) IN RATS

2006

Using a range of parameters, the ability of rats (Rattus norvegicus) to successfully transmit Echinostoma friedi to the next host was examined under experimental conditions. The concept of Experimental Transmission Success (TM), defined as the number of hosts that become successfully infected after exposure to a number of infective stages produced by a previous host per unit of inoculation at which this latter host was exposed, was introduced. Using data for the egg output and miracidium hatching and infectivity, the TM permits us to estimate the ability of a particular defintive host species to successfully transmit a parasite species. This concept may be also useful to compare the transmi…

MaleTime FactorsZoology:CIENCIAS DE LA VIDA [UNESCO]Echinostomatidaelaw.inventionRodent DiseasesInoculationlawCricetinaeEchinostomaUNESCO::CIENCIAS DE LA VIDAAnimalsParasite hostingRats WistarParasite Egg CountEcology Evolution Behavior and SystematicsLymnaeaOvumInfectivityEchinostomiasisMesocricetusbiologyHost (biology)EcologyHatchingHost:CIENCIAS DE LA VIDA::Biología animal (Zoología) ::Parasitología animal [UNESCO]biology.organism_classificationRatsUNESCO::CIENCIAS DE LA VIDA::Biología animal (Zoología) ::Parasitología animalTransmission (mechanics)Echinostoma ; Rats ; Inoculation ; HostEvaluation Studies as TopicParasitologyEchinostomaTrematodaJournal of Parasitology
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Impact of Visual Biofeedback of Trunk Sway Smoothness on Motor Learning during Unipedal Stance.

2020

The assessment of trunk sway smoothness using an accelerometer sensor embedded in a smartphone could be a biomarker for tracking motor learning. This study aimed to determine the reliability of trunk sway smoothness and the effect of visual biofeedback of sway smoothness on motor learning in healthy people during unipedal stance training using an iPhone 5 measurement system. In the first experiment, trunk sway smoothness in the reliability group (n = 11) was assessed on two days, separated by one week. In the second, the biofeedback group (n = 12) and no-biofeedback group (n = 12) were compared during 7 days of unipedal stance test training and one more day of retention (without biofeedback…

Malegenetic structuresIntraclass correlationMotor learningmedicine.medical_treatment:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Accelerometry [Medical Subject Headings]lcsh:Chemical technologyBiochemistryAnalytical Chemistry:Organisms::Eukaryota::Animals::Chordata::Vertebrates::Mammals::Primates::Haplorhini::Catarrhini::Hominidae::Humans [Medical Subject Headings]0302 clinical medicinePostural Balancelcsh:TP1-1185InstrumentationPostural BalanceSmartPhone:Anatomy::Body Regions::Torso [Medical Subject Headings]TorsoAtomic and Molecular Physics and OpticsBiomechanical PhenomenaInertial measurement unitEquilibrio posturalAnalysis of varianceMotor learningPsychology:Persons::Persons::Age Groups::Adult::Young Adult [Medical Subject Headings]psychological phenomena and processesAdultbiofeedbackmedicine.medical_specialty:Check Tags::Male [Medical Subject Headings]BiofeedbackTeléfono inteligenteBiofeedback:Psychiatry and Psychology::Psychological Phenomena and Processes::Psychophysiology::Biofeedback Psychology [Medical Subject Headings]Article03 medical and health sciencesYoung AdultPhysical medicine and rehabilitation:Phenomena and Processes::Musculoskeletal and Neural Physiological Phenomena::Musculoskeletal Physiological Phenomena::Postural Balance [Medical Subject Headings]Post-hoc analysismedicineBiorretroalimentación psicológica:Chemicals and Drugs::Biological Factors::Biological Markers [Medical Subject Headings]HumansElectrical and Electronic Engineering:Persons::Persons::Age Groups::Adult [Medical Subject Headings]inertial measurement unitReproducibility of ResultsBiofeedback Psychology030229 sport sciencesTrunkPower law of practicePostural balance:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Evaluation Studies as Topic::Reproducibility of Results [Medical Subject Headings]:Phenomena and Processes::Physical Phenomena::Mechanical Phenomena::Biomechanical Phenomena [Medical Subject Headings]motor learning030217 neurology & neurosurgerySensors (Basel, Switzerland)
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Hypothermic Oscillating Liver Perfusion Stimulates ATP Synthesis prior to Transplantation

1998

Abstract Background. ATP and glycogen depletion often have been demonstrated during cold storage of the liver prior to transplantation. Suppression of events that lead to metabolic depression and to lipid peroxidation could contribute to improvement of liver preservation. A new method of liver preservation for transplantation is therefore suggested, an oscillating oxygenated hypothermic liver perfusion. Methods. Biochemical analysis of liver tissue samples and perfusate after 10 h of perfusion by the presented oscillating perfusion model were compared with results after continuous liver perfusion for 10 h as well as with data derived from cold-stored livers over a period of 10 h. Particular…

Malemedicine.medical_specialtyAdenosineTime FactorsAllopurinolmedicine.medical_treatmentOrgan Preservation SolutionsCold storageBiologyLiver transplantationchemistry.chemical_compoundAdenosine TriphosphateRaffinoseRats Inbred BNInternal medicinemedicineAnimalsInsulinEnergy chargeLiver preservationMachine perfusionGlycogenOrgan PreservationGlutathioneLiver GlycogenLiver TransplantationRatsCold TemperatureOxygenPerfusionTransplantationEndocrinologyLiverBiochemistrychemistryEvaluation Studies as TopicSurgeryEnergy MetabolismPerfusionJournal of Surgical Research
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Early detection of pneumonia in febrile neutropenic patients: use of thin-section CT.

1997

The purpose of this study was to evaluate the usefulness of thin-section CT for early detection of pneumonia in neutropenic patients with an unknown site of infection and normal or nonspecific findings on chest radiographs.Eighty-seven patients with febrile neutropenia that persisted for more than 2 days despite empiric antibiotic treatment underwent 146 prospective examinations. If findings on chest radiographs were normal (n = 126) or nonspecific (n = 20), thin-section CT (1-mm collimation, 10-mm increment) was done. If thin-section CT scans showed opacities, bronchoalveolar lavage was recommended.Findings on chest radiographs were nonspecific for pneumonia in 20 (14%) of 146 cases, and C…

Malemedicine.medical_specialtyNeutropeniaTime FactorsRadiographyAntineoplastic AgentsNeutropeniaFever of Unknown OriginPredictive Value of TestsRisk FactorsNeoplasmsmedicineHumansRadiology Nuclear Medicine and imagingProspective StudiesMycosisLeukopeniamedicine.diagnostic_testbusiness.industryRespiratory diseasePneumoniaGeneral MedicineMiddle Agedmedicine.diseaserespiratory tract diseasesSurgeryPneumoniaBronchoalveolar lavageEvaluation Studies as TopicFemaleRadiologymedicine.symptomTomography X-Ray ComputedbusinessBronchoalveolar Lavage FluidFebrile neutropeniaAmerican Journal of Roentgenology
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Steatocrit test: Normal range and physiological variations in preterm and low-birth-weight full-term newborns

1992

Malemedicine.medical_specialtyPediatricsFecesReference ValuesmedicineHumansNormal rangeFull TermChi-Square DistributionObstetricsbusiness.industryInfant NewbornGeneral MedicineInfant Low Birth WeightDietary FatsTest (assessment)Low birth weightCeliac DiseaseEvaluation Studies as TopicPediatrics Perinatology and Child HealthInfant Small for Gestational AgeFemaleInfant Foodmedicine.symptombusinessInfant Premature
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Temporal retrogasserian resection of trigeminal root versus controlled elective percutaneous electrocoagulation of the ganglion of gasser in the trea…

1972

In his experience with 531 surgical procedures for the relief of trigeminal neuralgia between 1955 to 1970, the author developed a strong preference for the percutaneous electro-coagulation of the gasserian ganglion. Although the method was repeatedly modified in the early years, a standardized technique of controlled, selective and fractional coagulation in the semiawake state of neurolept-anaesthesia was used since 1963 in 183 of his 311 patients, treated in this manner. The advantages of the method, particularly in comparison to open intracranial root sections, are: Minimal operative risk, control of operative effect during the operation, small sensibility deficit, low rate of complicati…

Malemedicine.medical_specialtyPercutaneousmedicine.medical_treatmentmedia_common.quotation_subjectElectrocoagulationStereotaxic TechniquesThalamusTrigeminal neuralgiaMesencephalonmedicineElectrocoagulationMethodsHumansTrigeminal Nervemedia_commonNeuroradiologyMedulla Oblongatamedicine.diagnostic_testbusiness.industryConvalescenceInterventional radiologyTrigeminal Neuralgiamedicine.diseaseSurgeryGanglionmedicine.anatomical_structureEvaluation Studies as TopicAnesthesiaSurgeryNeurology (clinical)NeurosurgerybusinessCraniotomyActa neurochirurgica
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Evaluation of post-myocardial infarction regional and global left ventricular function by monoplane ventriculography: superiority of right versus lef…

1996

OBJECTIVES To study the significance of serial quantitative regional wall motion analysis, volumes, and ejection fraction findings as well as their prognostic implications derived from cineventriculography in 30 degrees right anterior oblique (RAO) projection in comparison with 60 degrees left anterior oblique (LAO) projection in post-myocardial infarction patients. Ventriculographic left ventricular parameters are accepted surrogates of mortality in myocardial infarction. Nowadays, in contrast to a biplanar approach in most institutions and clinical trials, the investigation is reduced to monoplanar ventriculography. However, it is not known whether the relevance of the two established pro…

Malemedicine.medical_specialtyStreptokinaseMyocardial InfarctionInfarctionPost myocardial infarctionVentricular Function LeftInternal medicineMedicineHumansMyocardial infarctionAngioplasty Balloon CoronaryVentricular remodelingProjection (set theory)Ejection fractionbusiness.industryGated Blood-Pool ImagingStroke VolumeGeneral MedicineMiddle Agedmedicine.diseaseThrombosisSurvival AnalysisEvaluation Studies as TopicCardiologyFemaleCardiology and Cardiovascular Medicinebusinessmedicine.drugCoronary artery disease
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Evaluation of polyalkylcyanoacrylate nanoparticles as a potential drug carrier: preparation, morphological characterization and loading capacity.

1993

Some physicochemical behaviours were investigated of polyethyl- (PECA) and polyisobutylcyanoacrylate (PICA), which, in recent years, have been proposed as nanoparticle colloidal systems for drug carrying. We observed the influence of preparation conditions, such as pH value and surfactant concentration, on parameters such as particle size and polymer molecular weight. Lower operating pH values (0-2) resulted in smaller nanoparticles than those prepared at pH 5.5. The polymer molecular weight was also a function of pH: low molecular weight at low pH and vice-versa. The surfactant concentration positively influenced main particle size and polymer molecular weight. These trends were independen…

Materials sciencePolymersChemistry PharmaceuticalPharmaceutical ScienceNanoparticleBioengineeringDosage formchemistry.chemical_compoundColloidSurface-Active AgentsColloid and Surface ChemistryPulmonary surfactantPolymer chemistryColloidsCyanoacrylatesPhysical and Theoretical ChemistryParticle Sizechemistry.chemical_classificationDrug CarriersOrganic ChemistryPolymerEnbucrilateHydrogen-Ion ConcentrationFluoresceinsKineticsMonomerchemistryChemical engineeringEvaluation Studies as TopicFluoresceinParticle sizeDrug carrierJournal of microencapsulation
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Incremental lines in root cementum of human teeth: an approach to their ultrastructural nature by microscopy.

1998

In ground sections of human teeth, root cementum shows under the light microscope as alternating, almost concentric, dark and light rings. In paleontology and forensic medicine, the number of these incremental lines or annulations is used to derive the age-at-death of the individual. To find the ultrastructural features underlying these cemental annulations, we used bright-field light microscopy (LM), confocal laser scanning microscopy (CLSM), transmission electron microscopy (TEM), and electron-dispersive x-radiation (EDX) in a scanning electron microscope (SEM). Annulations visible in ground sections of about 100-μm thickness were no longer visible in semi-thin sections (thickness, 1-2 μ…

Materials scienceScanning electron microscopeAnalytical chemistrylaw.inventionOpticsOptical microscopelawMicroscopyMicrotomeHumansBicuspidTooth RootDental CementumMicroscopyMicroscopy Confocalbusiness.industryScanning confocal electron microscopyGeneral MedicineMicrotomyDark field microscopyMicroscopy ElectronTransmission electron microscopyEvaluation Studies as TopicUltrastructureAge Determination by TeethbusinessElectron Probe MicroanalysisAdvances in dental research
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Bond strength of metal-ceramic systems in three-point flexure bond test

1995

This study deals with a three-point flexure test for the metal-ceramic bond involving geometrically simple specimens (alloy strips partly coated with ceramic) that can be fabricated with reasonable expenditure and sufficient reproducibility. The calculation of the stress distribution in such specimens with the aid of the finite-element method (FEM) is presented. The aim of this numerical analysis is: to investigate the stress distribution in a ceramometallic specimen with dimensions that, in a large number of experiments, have proven to lead to debonding at one end of the ceramic veneer instead of a crack in the middle of the veneer; and to assign a bond strength to the measured critical be…

Materials sciencemedicine.medical_treatmentMetal Ceramic AlloysModulusBiocompatible MaterialsIn Vitro TechniquesSensitivity and SpecificityStress (mechanics)Tensile StrengthMaterials TestingUltimate tensile strengthmedicineHumansCeramicComposite materialBond strengthbusiness.industryGeneral EngineeringReproducibility of ResultsGeneral MedicineStructural engineeringTest methodModels TheoreticalEvaluation Studies as Topicvisual_artvisual_art.visual_art_mediumFracture (geology)VeneerStress MechanicalbusinessJournal of Applied Biomaterials
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