0000000000568492

AUTHOR

S. O'brien

showing 13 related works from this author

Long-term hepatic safety of lomitapide in homozygous familial hypercholesterolaemia

2023

Introduction: Lomitapide is a microsomal triglyceride transfer protein inhibitor for patients with homozygous familial hypercholesterolaemia. Due to its mechanism of action, potential hepatic effects of lomitapide are of clinical interest. This study aimed to determine the long-term hepatic safety of lomitapide. Methods: Data were aggregated from the pivotal phase 3 and extension phase clinical trial with lomitapide (median 5.1 years; serum total bilirubin, transaminases, cytokeratin-18 [CK-18] and enhanced liver fibrosis [ELF] score, fat-soluble vitamins and essential fatty acids), 8-year data from the Lomitapide Observational Worldwide Evaluation Registry (LOWER) and real-world evidence f…

Settore MED/09 - Medicina Internahepatic steatosisliverLomitapidehepatic biomarkershepatic steatosiSettore BIO/18 - Geneticahepatic biomarkerSettore BIO/14 - Farmacologialiver fibrosis.hepatichepatic; hepatic biomarkers; hepatic steatosis; homozygous familial hypercholesterolaemia; liver; liver fibrosis; lomitapidehomozygous familial hypercholesterolaemialiver fibrosis
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Neutron measurements for advanced nuclear systems: The n_TOF project at CERN

2012

A few years ago, the neutron time-of-flight facility n_TOF was built at CERN to address some of the urgent needs of high-accuracy nuclear data for Accelerator Driven Systems and other advanced nuclear energy systems, as well as for nuclear astrophysics and fundamental nuclear physics. Thanks to the characteristics of the neutron beam, and to state-of-the-art detection and acquisition systems, high quality neutron cross-section data have been obtained for a variety of isotopes, many of which radioactive. Following an important upgrade of the spallation target and of the experimental area, a new measurement campaign has started last year. After a brief review of the most important results obt…

Nuclear and High Energy PhysicsAstrofísica nuclearNuclear engineeringNuclear Theory[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]01 natural sciences7. Clean energyNuclear physics0103 physical sciencesNuclear astrophysicsSpallationNeutron010306 general physicsNuclear ExperimentInstrumentationPhysics:Energies::Energia nuclear [Àrees temàtiques de la UPC]NeutronsLarge Hadron Collider:Física [Àrees temàtiques de la UPC]010308 nuclear & particles physicsNuclear fissionNuclear dataNeutron radiationNuclear technologyEnergia nuclearPhysics::Accelerator PhysicsFísica nuclearSpallation Neutron Source
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Multiband variability studies and novel broadband SED modeling of Mrk 501 in 2009

2017

Astronomy and astrophysics 603, A31 (2017). doi:10.1051/0004-6361/201629540

extragalactic background lightmultiwavelength observationsAstrophysics::High Energy Astrophysical Phenomenabl-lacertae objectsGalaxies: BL Lacertae objects: individual: Markarian 501 ; Methods: data analysis ; observational ; Polarizationspectral energy-distributionFluxFOS: Physical sciencesAstrophysics01 natural scienceslaw.inventionindividual: Markarian 501 [BL Lacertae objects]lawCoincident0103 physical sciencesddc:530MAGIC (telescope)crab-nebulaBlazardata analysis [Methods]010303 astronomy & astrophysicsPhysicsHigh Energy Astrophysical Phenomena (astro-ph.HE)tev blazars010308 nuclear & particles physicsstochastic accelerationtelescope observationsInstitut für Physik und AstronomieAstronomy and AstrophysicsAstronomy and Astrophysicgamma-ray emissionmethods: data analysis520BL Lacertae objects: individual: Markarian 501; Methods: data analysisSynchrotrondata analysi [Methods]BL Lacertae objects: individual: Markarian 501; Methods: data analysis; Astronomy and Astrophysics; Space and Planetary ScienceBL Lacertae objects: individual: Markarian 501x-raySpace and Planetary Scienceddc:520ElectrónicaFísica nuclearElectricidadDegeneracy (mathematics)Astrophysics - High Energy Astrophysical PhenomenaFlareBL Lac object
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Production and isobaric separation of 63Ni ions for determination of the 62Ni(n,γ)63Ni reaction cross section at stellar temperatures

2004

Nuclear physicsPhysicsNuclear and High Energy PhysicsCross section (physics)NucleosynthesisIsobaric processAtomic physicss-processIonNuclear Physics A
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Measurement of the n-TOF beam profile with a micromegas detector

2004

A Micromegas detector was used in the neutron Time-Of-Flight (n_TOF) facility at CERN to evaluate the spatial distribution of the neutron beam as a function of its kinetic energy. This was achieved over a large range of neutron energies by using two complementary processes: at low energy by capture of a neutron via the 6Li(n,[alpha])t reaction, and at high energy by elastic scattering of neutrons on gas nuclei (argon+isobutane or helium+isobutane). Data are compared to Monte Carlo simulations and an analytic function fitting the beam profile has been calculated with a sufficient precision to use in neutron capture experiments at the n_TOF facility. http://www.sciencedirect.com/science/artic…

Elastic scatteringPhysicsNuclear and High Energy PhysicsArgonPhysics::Instrumentation and DetectorsAstrophysics::High Energy Astrophysical PhenomenaBeam profileNuclear Theorychemistry.chemical_elementMicroMegas detectorNUCLEAR PHYSICSNeutron radiationNuclear physicsNeutron capturechemistryNEUTRON BEAMSNeutron cross sectionMICROMEGAS DETECTORNeutron detectionNeutron beam profilerNeutronNuclear ExperimentInstrumentationMicromegas
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Stellar(n,γ)Cross Section ofNi62

2005

The 62Ni(n,gamma)63Ni(t(1/2)=100+/-2 yr) reaction plays an important role in the control of the flow path of the slow neutron-capture (s) nucleosynthesis process. We have measured for the first time the total cross section of this reaction for a quasi-Maxwellian (kT=25 keV) neutron flux. The measurement was performed by fast-neutron activation, combined with accelerator mass spectrometry to detect directly the 63Ni product nuclei. The experimental value of 28.4+/-2.8 mb, fairly consistent with a recent calculation, affects the calculated net yield of 62Ni itself and the whole distribution of nuclei with 62<A<90 produced by the weak s process in massive stars.

Nuclear physicsPhysicsCross section (physics)StarsNucleosynthesisNeutron fluxYield (chemistry)General Physics and AstronomyAtomic physicss-processMass spectrometryAccelerator mass spectrometryPhysical Review Letters
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Measurement of the 151Sm n,gamma 152Sm cross section at n_TOF

2005

The 151 Sm(n, γ ) 152 Sm cross section, which is important for the interpretation of the 151 Sm branching as an s -process thermometer, was measured from 1 eV up to 1 MeV at the innovative n_TOF facility at CERN. Based on these data, the Maxwellian-averaged cross section at k T = 30  keV is found to be 3100±160 mb. This value can be used to constrain the thermodynamical conditions in Asymptotic Giant Branch (AGB) stars during He-shell burning.

PhysicsNuclear reactionNeutronsNuclear and High Energy Physics:Física [Àrees temàtiques de la UPC]Branching fraction[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]Giant star01 natural sciencesNeutrons--CaptureNuclear physicsStarsNucleosynthesis0103 physical sciencesAsymptotic giant branchAstrophysics::Solar and Stellar Astrophysics010306 general physicss-processNuclear Experiment010303 astronomy & astrophysicsDimensionless quantity
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Broadband Multi-wavelength Properties of M87 during the 2017 Event Horizon Telescope Campaign

2021

Full list of authors: EHT MWL Science Working Group; Algaba, J. C.; Anczarski, J.; Asada, K.; Baloković, M.; Chandra, S.; Cui, Y. -Z.; Falcone, A. D.; Giroletti, M.; Goddi, C.; Hada, K.; Haggard, D.; Jorstad, S.; Kaur, A.; Kawashima, T.; Keating, G.; Kim, J. -Y.; Kino, M.; Komossa, S.; Kravchenko, E. V.; Krichbaum, T. P.; Lee, S. -S.; Lu, R. -S.; Lucchini, M.; Markoff, S.; Neilsen, J.; Nowak, M. A.; Park, J.; Principe, G.; Ramakrishnan, V.; Reynolds, M. T.; Sasada, M.; Savchenko, S. S.; Williamson, K. E.; Event Horizon Telescope Collaboration; Akiyama, Kazunori; Alberdi, Antxon; Alef, Walter; Anantua, Richard; Azulay, Rebecca; Baczko, Anne-Kathrin; Ball, David; Barrett, John; Bintley, Dan; …

Accretion010504 meteorology & atmospheric sciencesAstronomyFluxAstrophysics7. Clean energy01 natural sciencesActive galactic nuclei; Radio cores; Low-luminosity active galactic nuclei; High energy astrophysics; Astrophysical black holes; Accretion; Astrophysics - High Energy Astrophysical Phenomena; Astrophysics - Cosmology and Nongalactic Astrophysics; Astrophysics - Astrophysics of Galaxies010303 astronomy & astrophysicsHigh Energy Astrophysical Phenomena (astro-ph.HE)Physicsastro-ph.HERadio coreAccretion (meteorology)PhysicsAstrophysical black holes520 Astronomie und zugeordnete WissenschaftenActive galactic nuclei ; Radio cores ; Low-luminosity ; active galactic nuclei ; High energy astrophysics ; Astrophysical black holes ; AccretionAstrophysical black holeLow-luminosity active galactic nucleiastro-ph.COAstrophysics - High Energy Astrophysical PhenomenaAccretion; Active galactic nuclei; Astrophysical black holes; High energy astrophysics; Low-luminosity active galactic nuclei; Radio coresHigh energy astrophysicsRadio coresAstrophysics - Cosmology and Nongalactic AstrophysicsCosmology and Nongalactic Astrophysics (astro-ph.CO)Active galactic nucleusHigh-energy astronomyastro-ph.GAAstrophysics::High Energy Astrophysical PhenomenaFOS: Physical sciencesF500Astrophysics::Cosmology and Extragalactic AstrophysicsHigh energy astrophysic0103 physical sciencesVery-long-baseline interferometryddc:530Astrophysics::Galaxy Astrophysics0105 earth and related environmental sciencesEvent Horizon TelescopeSupermassive black holeActive galactic nucleiAstronomy and Astrophysics530 PhysikAstrophysics - Astrophysics of GalaxiesGalaxySpace and Planetary ScienceAstrophysics of Galaxies (astro-ph.GA)ddc:520Active galactic nuclei; Radio cores; Low-luminosity active galactic nuclei; High energy astrophysics; Astrophysical black holes; AccretionHESS - Abteilung Hinton[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
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Measurements of the 90,91,92,94,96 Zr n, gamma cross-sections at n_TOF

2005

Neutron capture cross sections of the 90,91,92,94,96Zr have been measured over the energy range from 1 eV to 1 MeV at the spallation neutron facility n TOF at CERN in 2003. The innovative features of the neutron beam, in particular the high instantaneous flux, the high energy resolution and low background, together with improvements of the neutron sensitivity of the capture detectors make this facility unique for neutron-induced reaction cross section measurements with much improved accuracy. The preliminary results of the Zr measurements show capture resonance strengths generally smaller than in previous measurements. Peer Reviewed

Nuclear and High Energy PhysicsNeutron cross sectionsPhysics::Instrumentation and DetectorsAstrophysics::High Energy Astrophysical PhenomenaNuclear TheoryNeutron scattering[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]7. Clean energy01 natural sciencesNeutrons -- SeccionsNeutron time-of-flight scatteringNuclear physics0103 physical sciencesNeutron cross sectionNeutrons -- MesuramentNeutron010306 general physicsNuclear ExperimentPhysicsBonner sphere010308 nuclear & particles physicsNeutrons--MeasurementNeutron stimulated emission computed tomographyNeutron temperatureNeutron capture:Física::Astronomia i astrofísica [Àrees temàtiques de la UPC]Physics::Accelerator Physics
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Neutron capture cross section measurements for nuclear astrophyisics at CERN n_TOF

2005

A series of neutron capture cross section measurements of interest to nuclear astrophysics have been recently performed at n_TOF, the neutron spallation source operating at CERN. The low repetition frequency of the proton beam driver, the extremely high instantaneous neutron flux, and the low background conditions in the experimental area are optimal for capture cross section measurements on low-mass or radioactive samples. An overview of the measurements performed during the two experimental campaigns in 2002 and 2003 is presented with special emphasis on the measurement of the capture cross sections of the Os isotopes relevant for the cosmochronology based on the Re/Os clock. http://www.s…

Nuclear and High Energy PhysicsAstrofísica nuclearNeutron cross sectionsProtonAstrophysics::High Energy Astrophysical PhenomenaNuclear Theory[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]01 natural sciencesNeutrons -- SeccionsNuclear physicsCross section (physics)Neutron flux0103 physical sciencesNeutron cross sectionNuclear astrophysicsSpallationNeutron010306 general physicsNuclear ExperimentPhysicsNeutronsLarge Hadron Collider:Física [Àrees temàtiques de la UPC]010308 nuclear & particles physicsRadioactivityPhysics::Accelerator PhysicsNuclear astrophysicsFísica nuclear
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SARS-CoV-2 vaccination modelling for safe surgery to save lives: data from an international prospective cohort study

2021

Abstract Background Preoperative SARS-CoV-2 vaccination could support safer elective surgery. Vaccine numbers are limited so this study aimed to inform their prioritization by modelling. Methods The primary outcome was the number needed to vaccinate (NNV) to prevent one COVID-19-related death in 1 year. NNVs were based on postoperative SARS-CoV-2 rates and mortality in an international cohort study (surgical patients), and community SARS-CoV-2 incidence and case fatality data (general population). NNV estimates were stratified by age (18–49, 50–69, 70 or more years) and type of surgery. Best- and worst-case scenarios were used to describe uncertainty. Results NNVs were more favourable in su…

MaleCOVID-19 Vaccinesafe surgery; vaccination modelling; COVID-19Vascular damage Radboud Institute for Health Sciences [Radboudumc 16]MULTICENTERComorbidity030230 surgery0302 clinical medicinephase 3 clinical trial (topic)Case fatality rateProspective StudiesSARS-CoV-2 Vaccination Safe surgeryCOVID-19/epidemiologySARS-CoV-2 ; vaccination ; safe surgeryeducation.field_of_studycase fatality rateVaccinationVaccinationAdolescent; Adult; Aged; COVID-19; COVID-19 Vaccines; Comorbidity; Elective Surgical Procedures; Female; Humans; Male; Middle Aged; Postoperative Complications; Preoperative Period; Prospective Studies; SARS-CoV-2; Vaccination; Young Adulthealth care policyElective Surgical Procedures030220 oncology & carcinogenesisvaccination modellingPreoperative PeriodCOVID-19; SARS-CoV-2; cancer; vaccination; outcome; mortality; infection; modellingCohort studyprospective studyHumanmedicine.medical_specialtyArticle03 medical and health sciencesSARS-CoV-2 vaccinationSDG 3 - Good Health and Well-beingCOVID-19 Vaccines/pharmacologyHumansVaccination/methodsElective surgeryeducationAgedScience & TechnologyElective Surgical Procedureadult; aged; Article; cancer grading; cancer surgery; case fatality rate; computer assisted tomography; elective surgery; female; follow up; health care policy; human; incidence; infection rate; infection risk; major clinical study; male; middle aged; mortality; outcome assessment; phase 3 clinical trial (topic); preoperative care; prospective study; sensitivity analysis; seroprevalence; Severe acute respiratory syndrome coronavirus 2; vaccination; young adult; COVID-19; COVID-19 Vaccines; Comorbidity; Elective Surgical Procedures; Postoperative Complications; Preoperative Period; SARS-CoV-2; Vaccination; surgery.Cura preoperatòriamajor clinical studymortalityinfectionProspective StudieincidenceSurgeryHuman medicinePostoperative Complication610 Medizin und GesundheitAcademicSubjects/MED00910Settore MED/18 - CHIRURGIA GENERALESettore MED/29 - CHIRURGIA MAXILLOFACCIALEcomputer assisted tomographyESTUDOS PROSPECTIVOSsurgerysafe surgeryPostoperative Complicationssensitivity analysisSevere acute respiratory syndrome coronavirus 2preoperative careVacunacióProspective cohort studyseroprevalenceIncidence (epidemiology)covidElective Surgical Procedures/methodsMiddle Agedcancer gradingCOVID vaccinationoutcome/dk/atira/pure/sustainabledevelopmentgoals/good_health_and_well_beingSARS-CoV-2; vaccination; surgeryOriginal ArticleFemalecancer surgeryAcademicSubjects/MED00010Life Sciences & BiomedicineAdultCOVID-19 VaccinesAdolescentinternational prospective cohort studyPostoperative Complications/prevention & controlPopulationinfection rateSARS-CoV-2/immunologyNOmodellingYoung Adultmedicinefollow upcancerddc:610infection riskoutcome assessmentLS7_4business.industrySARS-CoV-2Number needed to vaccinatePreoperative careCOVID-193126 Surgery anesthesiology intensive care radiologySettore MED/18Reconstructive and regenerative medicine Radboud Institute for Health Sciences [Radboudumc 10]elective surgeryEmergency medicinebusiness[SDV.MHEP]Life Sciences [q-bio]/Human health and pathologyThe British Journal of Surgery
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Early outcomes and complications following cardiac surgery in patients testing positive for coronavirus disease 2019: An international cohort study

2021

The outbreak of severe acute respiratory syndromecoronavirus-2, the cause of coronavirus disease 2019 (COVID-19) in December 2019 represented a global emergency accounting for more than 2.5 million deaths worldwide.1 It has had an unprecedented influence on cardiac surgery internationally, resulting in cautious delivery of surgery and restructuring of services.2 Understanding the influence of COVID-19 on patients after cardiac surgery is based on assumptions from other surgical specialties and single-center studies. The COVIDSurg Collaborative conducted a multicenter cohort study, including 1128 patients, across 235 hospitals, from 24 countries demonstrating perioperative COVID-19 infection…

Pulmonary and Respiratory MedicineMale2019-20 coronavirus outbreakmedicine.medical_specialtyCoronavirus disease 2019 (COVID-19)Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)complication.ArticleNOCohort Studiesoutcomes; complications; following cardiac surgery; coronavirus disease 2019Postoperative ComplicationsCardiovascular Diseases; Cohort Studies; Female; Humans; Male; Middle Aged; SARS-CoV-2; COVID-19; Cardiac Surgical Procedures; Postoperative ComplicationsInternal medicineCardiovascular DiseasemedicineCardiac Surgical ProcedureHumansIn patientCardiac Surgical ProceduresLS7_4business.industrySARS-CoV-2COVID-19Middle AgedCardiac surgeryCardiovascular DiseasesoutcomeSurgeryFemaleCohort StudieCardiology and Cardiovascular Medicinebusinesscardiac surgery[SDV.MHEP]Life Sciences [q-bio]/Human health and pathologyCohort studyHuman
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Machine learning risk prediction of mortality for patients undergoing surgery with perioperative SARS-CoV-2: the COVIDSurg mortality score

2021

The British journal of surgery 108(11), 1274-1292 (2021). doi:10.1093/bjs/znab183

Cuidado perioperatorioAcademicSubjects/MED00910Settore MED/18 - CHIRURGIA GENERALEMedizinpulmonary complicationspreoperative screeningDatasets as TopicSurgical Procedures Operative/mortality030230 surgeryperioperative care ; surgical procedures ; operative mortality ; machine learning ; sars-cov-2Medical and Health SciencesProcediments quirúrgicsCohort StudiesMachine LearningTumours of the digestive tract Radboud Institute for Health Sciences [Radboudumc 14]0302 clinical medicineModelsProcedimientos quirúrgicosMedicine and Health SciencesCOVIDSurg Collaborative Co-authorsMedicine030212 general & internal medicineskin and connective tissue diseasesRapid Research Communication11 Medical and Health SciencesOperative/mortalitySARS-CoV-19COVID-19/mortalityStatisticalCOVID-19/mortality; Cohort Studies; Datasets as Topic; Humans; Machine Learning; Models Statistical; Risk Assessment; SARS-CoV-2; Surgical Procedures Operative/mortalityCOVID-19; Cohort Studies; Datasets as Topic; Humans; Machine Learning; SARS-CoV-2; Surgical Procedures Operative; Models Statistical; Risk AssessmentAprendizaje automáticoOperativeSurgical Procedures OperativeoutcomeOperativo[SDV.IB]Life Sciences [q-bio]/BioengineeringPatient SafetyAcademicSubjects/MED000106.4 SurgeryLife Sciences & BiomedicineHuman61medicine.medical_specialty616.9Coronavirus disease 2019 (COVID-19)Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-.Risk AssessmentNOCOVIDSurg CollaborativeVaccine Related03 medical and health sciencesClinical ResearchBiodefenseCures perioperatòriesAprenentatge automàticMortalitatHumansOperatiusLS7_4Surgical ProceduresScience & TechnologyModels Statisticalbusiness.industrySARS-CoV-2SARS-CoV-2 infectionKirurgiPreventionnot indicatedcovid 19fungiEvaluation of treatments and therapeutic interventionsCOVID-19Perioperativecovid 19; pulmonary complications; postoperative mortality risk; SARS-CoV-2 infection; preoperative screening; vaccinationvaccinationmortalityGood Health and Well BeingMortalidadEmergency medicineSurgeryHuman medicineCohort Studiebusinesspostoperative mortality riskPerioperative care
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