Search results for "36"

showing 10 items of 1917 documents

Combined approach to atrial and ventricular function for assessment of diastole through MRI: Hypertrophic Cardiomyopathy (HCM) vs Healthy Controls (H…

2013

Purpose Methods and Materials Results Conclusion References Personal Information

CongenitalCongenital Imaging sequences MR CardiacMRImaging sequencesSettore MED/36 - Diagnostica Per Immagini E RadioterapiaCardiac
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Conjugacy problem for braid groups and Garside groups

2003

We present a new algorithm to solve the conjugacy problem in Artin braid groups, which is faster than the one presented by Birman, Ko and Lee. This algorithm can be applied not only to braid groups, but to all Garside groups (which include finite type Artin groups and torus knot groups among others).

Conjugacy problemBraid group20F36Geometric topologyGarside groupsGroup Theory (math.GR)0102 computer and information sciencesAlgebraic topology01 natural sciencesTorus knotCombinatoricsMathematics - Geometric TopologyMathematics::Group TheoryMathematics::Quantum AlgebraFOS: MathematicsAlgebraic Topology (math.AT)Mathematics - Algebraic Topology0101 mathematics20F36; 20F10MathematicsSmall Gaussian groupsAlgebra and Number Theory010102 general mathematicsConjugacy problemBraid groupsGeometric Topology (math.GT)Braid theoryMathematics::Geometric TopologyArtin groups010201 computation theory & mathematicsArtin group20F10Mathematics - Group TheoryGroup theory
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Medical Student Ultrasound Education, a WFUMB Position Paper, Part II. A consensus statement of ultrasound societies.

2020

Ultrasound is becoming a fundamental first-line diagnostic tool for most medical specialties and an innovative tool to teach anatomy, physiology and pathophysiology to undergraduate and graduate students. However, availability of structured training programs during medical school is lagging behind and many physicians still acquire all their ultrasound skills during postgraduate training.There is wide variation in medical student ultrasound education worldwide. Sharing successful educational strategies from early adopter medical schools and learning from leading education programs should advance the integration of ultrasound into the university medical school curricula. In this overview, we …

ConsensusInternationalityStudents MedicalAcoustics and UltrasonicsEducation; Position paper; Skills; Ultrasound; WFUMBeducationMEDLINE610 Medicine & healthWFUMBEducationEarly adopter360 Social problems & social servicesUltrasoundMedicineHumansRadiology Nuclear Medicine and imagingUniversity medicalPosition paperUltrasonics610 Medicine & healthCurriculumSchools MedicalUltrasonographyStatement (computer science)Medical educationRadiological and Ultrasound TechnologyEducation Medicalbusiness.industrySkillsUltrasoundMedical schoolPosition paperCurriculumbusiness360 Social problems & social servicesMedical ultrasonography
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Comparative Study of PM10 Concentrations and Their Elemental Composition Using Two Different Techniques during Winter–Spring Field Observation …

2022

The aims of this study were to determine the concentrations and elemental composition of PM10 in the village of Kotórz Mały (Poland), to analyse their seasonal variability, to determine the sources of pollutant emissions and to compare the consistency of the results obtained using different methods. Sampling and weather condition measurements were carried out in the winter (January–February) and spring (April) of 2019. Two combinations of different techniques were used to examine PM10 concentrations and their chemical composition: gravimetric method + atomic absorption spectrometry (GM+AAS) and continuous particle monitor + energy dispersive X-ray fluorescence (CPM+EDXRF).…

Control and OptimizationRenewable Energy Sustainability and the Environmentreference methodEDXRF; AASEnergy Engineering and Power TechnologyBuilding and ConstructionElectrical and Electronic Engineeringfactor analysEngineering (miscellaneous)continuous particle monitor; reference method; PX-365; EDXRF; AAS; factor analysiscontinuous particle monitorPX-365Energy (miscellaneous)Energies; Volume 15; Issue 13; Pages: 4769
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Learning Groups in MOOCs : Lessons for Online Learning in Higher Education

2017

when there is interaction within online learning groups, meaningful learning is achieved. Motivating and sustaining effective student interactions requires planning, coordination and implementation of curriculum, pedagogy and technology. For our aim to understand online learning group processes to identify effective online learning group mechanisms, comparative analysis was used on a massive open online course (MOOC) run in 2015 and 2016. Qualitative (interaction on the platform) and quantitative (survey) methods were used. The findings revealed several possible ways to improve online learning group processes. This paper concludes that course organization helped in increasing individual par…

Cooperative learningLC8-6691Computer scienceGeneral EngineeringEducational technologyMOOCTheory and practice of educationOpen learningHigher EducationSpecial aspects of educationExperiential learningEducationSynchronous learningBlended learningOnline Learning GroupsOnline LearningMeaningful learningPedagogyActive learningLB5-3640
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Smart camera based on an Embedded HW/SW Co-Processor

2008

Abstract This paper describes an image acquisition and a processing system based on a new coprocessor architecture designed for CMOS sensor imaging. The system exploits the full potential CMOS selective access imaging technology because the coprocessor unit is integrated into the image acquisition loop. The acquisition and coprocessing architecture are compatible with the majority of CMOS sensors. It enables the dynamic selection of a wide variety of acquisition modes as well as the reconfiguration and implementation of high-performance image preprocessing algorithms (calibration, filtering, denoising, binarization, pattern recognition). Furthermore, the processing and data transfer, from t…

CoprocessorGeneral Computer ScienceComputer sciencelcsh:TK7800-836002 engineering and technology0202 electrical engineering electronic engineering information engineeringSmart camera[ INFO.INFO-ES ] Computer Science [cs]/Embedded SystemsField-programmable gate arrayComputingMilieux_MISCELLANEOUSFPGACMOS sensorSmart Camerabusiness.industry020208 electrical & electronic engineeringlcsh:ElectronicsACMControl reconfiguration020206 networking & telecommunicationsModular designco-processorCMOSControl and Systems EngineeringEmbedded systemPattern recognition (psychology)embedded processing[INFO.INFO-ES]Computer Science [cs]/Embedded Systemsbusinesspostal sortingComputer hardwareComputer Science(all)
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Italian multicenter, prospective study to evaluate the negative predictive value of 16- and 64-slice MDCT imaging in patients scheduled for coronary …

2009

This was a prospective, multicenter study designed to evaluate the utility of MDCT in the diagnosis of coronary artery disease (CAD) in patients scheduled for elective coronary angiography (CA) using different MDCT systems from different manufacturers. Twenty national sites prospectively enrolled 367 patients between July 2004 and June 2006. Computed tomography (CT) was performed using a standardized/optimized scan protocol for each type of MDCT system (> or =16 slices) and compared with quantitative CA performed within 2 weeks of MDCT. A total of 284 patients (81%) were studied by 16-slice MDCT systems, while 66 patients (19%) by 64-slice MDCT scanners. The primary analysis was on-site/off…

Coronary angiographyAdultDiagnostic ImagingMalemedicine.medical_specialtyCoronary Artery DiseaseCoronary Angiographydiagnosis/radiographyCoronary artery diseasemethodsCoronary artery disease16- and 64-slice MDCT imaging coronary angiographySettore MED/36 - Diagnostica per Immagini e RadioterapiaPredictive Value of TestsCoronary Angiography/*methods Coronary Artery Disease/*diagnosis/*radiography Diagnostic Imaging/methods80 and overCardiac CTMedicineHumansRadiology Nuclear Medicine and imagingIn patientcardiovascular diseasesProspective StudiesProspective cohort studyTomographyNeuroradiologyAgedAged 80 and overmedicine.diagnostic_testbusiness.industryMultidetector CTNon invasiveReproducibility of ResultsInterventional radiologyGeneral MedicineAdult Aged Aged; 80 and over Coronary Angiography; methods Coronary Artery Disease; diagnosis/radiography Diagnostic Imaging; methods Female Humans Italy Male Middle Aged Predictive Value of Tests Prospective Studies Reproducibility of Results Tomography; X-Ray Computed; methodsMiddle Agedmedicine.diseasePredictive valueSettore MED/11 - Malattie Dell'Apparato CardiovascolareX-Ray Computedcoronary angiographyCTCardiac CT; Coronary artery disease; Multidetector CTItalyFemaleRadiologycoronary angiographybusinessTomography X-Ray Computed
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Prevalence of anatomical variants and coronary anomalies in 543 consecutive patients studied with 64-slice CT coronary angiography

2008

The aim of our study was to assess the prevalence of variants and anomalies of the coronary artery tree in patients who underwent 64-slice computed tomography coronary angiography (CT-CA) for suspected or known coronary artery disease. A total of 543 patients (389 male, mean age 60.5 +/- 10.9) were reviewed for coronary artery variants and anomalies including post-processing tools. The majority of segments were identified according to the American Heart Association scheme. The coronary dominance pattern results were: right, 86.6%; left, 9.2%; balanced, 4.2%. The left main coronary artery had a mean length of 112 +/- 55 mm. The intermediate branch was present in the 21.9%. A variable number …

Coronary angiographyAdultMalemedicine.medical_specialty64 slice ctCoronary Vessel AnomaliesContrast MediaCoronary Angiographymultislice computed tomographyIopamidolCoronary circulationInternal medicineCoronary CirculationCoronary artery circulation Multislice computed tomography Anatomical variants AnomaliesmedicinePrevalenceHumansRadiology Nuclear Medicine and imagingNeuroradiologyAgedAged 80 and overmedicine.diagnostic_testbusiness.industryInterventional radiologyGeneral MedicineMiddle Agedanatomical variantsIopamidolCoronary arteriesmedicine.anatomical_structurecoronary artery circulation; multislice computed tomography; anatomical variants; anomaliesRadiology Nuclear Medicine and imagingCardiologycoronary artery circulationRadiographic Image Interpretation Computer-AssistedanomaliesFemaleRadiologybusinessTomography X-Ray ComputedSettore MED/36 - Diagnostica Per Immagini E RadioterapiaCardiacmedicine.drugArteryEuropean Radiology
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Prognostic outcome of routine clinical noninvasive Multidetector row Computed Tomography Coronary Angiography in Patients with suspected coronary art…

2011

The aim of the study was to assess the prognostic value of multidetector-row CT coronary angiography (MDCT-CA) in patients with suspected coronary artery disease (CAD) in a routine clinical context.A total of 125 patients (82 men, age 57.4±10.3 years) with suspected CAD underwent MDCT-CA. All patients were assessed for cardiovascular risk factors, symptoms and coronary calcium score. A 2-year follow-up study for the occurrence of major adverse cardiac events was performed.According to the Morise pretest score, 76 patients (60.8%) were at intermediate risk. Patients with suspected CAD presented the following prognostic outcome (p0.0001): in 41 patients with normal coronary arteries at MDCT-C…

Coronary angiographyMaleMalattia aterosclerotica coronaricamedicine.medical_specialtyContext (language use)Coronary Artery DiseaseCoronary AngiographySensitivity and SpecificityCoronary artery diseasePredictive Value of TestsInternal medicinemedicineImage Processing Computer-AssistedHumansRadiology Nuclear Medicine and imagingIn patientValore prognosticocardiovascular diseasesCoronary artery disease Prognostic value Coronary angiography Multidetector row computed tomographyNeuroradiologymedicine.diagnostic_testbusiness.industryFollow up studiesInterventional radiologyGeneral MedicineMultidetector row computed tomographyMiddle Agedmedicine.diseasePrognosisPredictive value of testsAngiografia coronaricacardiovascular systemCardiologyFemaleRadiologyTomografia computerizzata multistratobusinessTomography X-Ray ComputedSettore MED/36 - Diagnostica Per Immagini E RadioterapiaPrognostic value
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Acceptance of noninvasive computed tomography coronary angiography: for a patient-friendly medicine.

2014

PURPOSE: This study was done to evaluate the psychological state and anxiety of patients undergoing computed tomography coronary angiography (CTCA), and assess their acceptance and satisfaction compared to invasive conventional coronary angiography (CCA). MATERIALS AND METHODS: A total of 442 consecutive patients (282 male; mean age 57.7 ± 9.5 years) who underwent CTCA for suspected or known coronary artery disease were evaluated with the Endler Multimodality Anxiety Scales (EMAS) before and after the scan, and a questionnaire administered after the scan. Among the 442 patients, 181 had a history of CCA. Two radiologists assessed the image quality of CTCA. RESULTS: Anxiety was more intense …

Coronary angiographyMalemedicine.medical_specialtyContrast MediaComputed tomographyCoronary DiseaseAnxietyCoronary AngiographyCoronary artery diseaseSex FactorsSurveys and QuestionnairesmedicineHumansRadiology Nuclear Medicine and imagingSettore MED/25 - PsichiatriaNeuroradiologyPsychiatric Status Rating Scalesmedicine.diagnostic_testbusiness.industryUltrasoundInterventional radiologyGeneral MedicineMiddle AgedPatient Acceptance of Health Caremedicine.diseaseIopamidolAnxietyRadiographic Image Interpretation Computer-AssistedFemaleRadiologyCoronary artery disease Anxiety Conventional coronary angiography CT coronary angiographymedicine.symptombusinessSettore MED/36 - Diagnostica Per Immagini E RadioterapiaTomography X-Ray ComputedLa Radiologia medica
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