Author: Marco Meyer

Positive Effect of Steroids in Posterior Reversible Encephalopathy Syndrome

2019

We present a case of posterior reversible encephalopathy syndrome with severe clinical manifestation. Apart from initial aphasia, hemiparesis, and a generalized seizure, the patient had a prolonged loss of consciousness. Although blood pressure was normalized, the clinical status deteriorated continuously. After adding steroids to the therapy, the patient recovered rapidly, suggesting that this could have been a useful therapeutic approach. Even the vasogenic edema in the cerebral magnetic resonance imaging disappeared shortly within 6 days.

medicine.medical_specialtyEncephalopathyPATHOPHYSIOLOGYCase ReportEncephalopathylcsh:RC346-42903 medical and health sciencesTherapeutic approach0302 clinical medicineInternal medicineAphasiamedicineMANAGEMENT030212 general & internal medicinelcsh:Neurology. Diseases of the nervous systemSPECTRUMmedicine.diagnostic_testbusiness.industryMagnetic resonance imagingPosterior reversible encephalopathy syndromeEDEMAmedicine.diseaseBlood pressureHemiparesisPosterior reversible encephalopathy syndromeCardiologyEncephalitisNeurology (clinical)medicine.symptombusiness030217 neurology & neurosurgeryEncephalitis

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Collective structure of the neutron-rich nuclei, 110Ru and 112Ru

1990

Abstract The collective structure of 110 Ru and 112 Ru has been studied at the IGISOL facility through the beta decay of 110 Tc and 112 Tc. Neutron-rich technetium isotopes were produced by the 238 U(p, f) reaction at 20 MeV bombarding energy. The new isotope 112 Tc was found to decay with a half-life of 280(30) ms. The observed energies of the 2 + and 4 + ground state band levels in 108,110,112 Ru are almost the same. However, a steady energy decrease of the proposed gamma band head is observed with increasing neutron number, suggesting importance of triaxiality in these nuclei. In fact, only in 192 Os the second 2 + state has been observed at lower excitation than in 112 Ru. The static de…

PhysicsNuclear and High Energy PhysicsIsotopes of germaniumIsotope010308 nuclear & particles physicsNuclear Theory7. Clean energy01 natural sciencesBeta decayNeutron number0103 physical sciencesIsotopes of zirconiumNeutronAtomic physicsNuclear Experiment010306 general physicsGround states-processNuclear Physics A

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Impaired Cerebrovascular Autoregulation in Large Vessel Occlusive Stroke after Successful Mechanical Thrombectomy: A Prospective Cohort Study

2020

Abstract Introduction: Successful thrombectomy improves morbidity and mortality after stroke. The present prospective, observational cohort study investigated a potential correlation between the successful restoration of tissue perfusion by mechanical thrombectomy and intact cerebrovascular autoregulation (CA). Objective: Status of CA in patients with large vessel occlusive stroke after thrombectomy. Methods: After thrombectomy CA was measured using transcranial Doppler ultrasound. For this purpose a moving correlation index (Mxa) based on spontaneous arterial blood pressure fluctuations and corresponding cerebral blood flow velocity changes was calculated. CA impairment was defined by Mxa …

Malemedicine.medical_specialtyTime FactorsUltrasonography Doppler TranscranialPerfusion scanningBrain Ischemia03 medical and health sciences0302 clinical medicinemedicine.arteryInternal medicinemedicineHomeostasisHumansArterial PressureProspective StudiesProspective cohort studyStrokeAgedThrombectomyAged 80 and overbusiness.industryRehabilitationRecovery of Functionmedicine.diseaseTranscranial DopplerStrokeTreatment OutcomeBlood pressureCerebral blood flowCerebrovascular CirculationMiddle cerebral arteryCardiologyFemaleSurgeryNeurology (clinical)Intracranial ThrombosisInternal carotid arteryCardiology and Cardiovascular MedicinebusinessBlood Flow Velocity030217 neurology & neurosurgeryJournal of Stroke and Cerebrovascular Diseases

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Status report of the SARA IGISOL used in the study of the 238U(α 40 MeV, ƒ) reaction

1992

Abstract A new ion guide isotope separator on-line (IGISOL), operating with the SARA facility, has been constructed. Using the 238U(α 40 MeV, ƒ) reaction to produce very neutron-rich radioisotopes, all mass chains from A = 96 to 122 have been scanned by conventional methods of nuclear spectroscopy. Provided the stopping volume is separated from the primary beam, it has been proved that the yield is nearly proportional to the He pressure. In addition to the usual advantages (quasi-independence from physical and chemical properties of elements), this makes IGISOL a powerful technique for high energy recoil products. During the experiments the boundary of known neutron-rich nuclei was reached …

Nuclear and High Energy PhysicsRange (particle radiation)Isotope010308 nuclear & particles physicsChemistryAnalytical chemistrySeparator (oil production)7. Clean energy01 natural sciencesIonNuclear physicsRecoilVolume (thermodynamics)Yield (chemistry)0103 physical sciencesNuclear Experiment010306 general physicsInstrumentationBeam (structure)Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms

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A counterion study of a series of [Cu(P^P)(N^N)][A] compounds with bis(phosphane) and 6-methyl and 6,6′-dimethyl-substituted 2,2′-bipyridine ligands …

2021

The syntheses and characterisations of a series of heteroleptic copper(i) compounds [Cu(POP)(Mebpy)][A], [Cu(POP)(Me2bpy)][A], [Cu(xantphos)(Mebpy)][A] and [Cu(xantphos)(Me2bpy)][A] in which [A]− is [BF4]−, [PF6]−, [BPh4]− and [BArF4]− (Mebpy = 6-methyl-2,2′-bipyridine, Me2bpy = 6,6′-dimethyl-2,2′-bipyridine, POP = oxydi(2,1-phenylene)bis(diphenylphosphane), xantphos = (9,9-dimethyl-9H-xanthene-4,5-diyl)bis(diphenylphosphane), [BArF4]− = tetrakis(3,5-bis(trifluoromethyl)phenyl)borate) are reported. Nine of the compounds have been characterised by single crystal X-ray crystallography, and the consequences of the different anions on the packing interactions in the solid state are discussed. T…

chemistry.chemical_classificationTrifluoromethylXantphoschemistry.chemical_element02 engineering and technology010402 general chemistry021001 nanoscience & nanotechnology01 natural sciencesCopperMedicinal chemistry22'-Bipyridine0104 chemical sciences3. Good healthInorganic ChemistryElectroquímicachemistry.chemical_compoundChemistrychemistryIonic liquidLuminophoreCounterion0210 nano-technologySingle crystalDalton Transactions (Cambridge, England : 2003)

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