4 research outputs found
Features of the bioelectrical activity of the brain and cerebral hemodynamics in patients with hypertensive dyscirculatory encephalopathy and hypothyroidism
Encephalopathy is common in people of working age. In the last decade there was an important question the relationship of thyroid and cerebrovascular disease. The aim of the study was to investigate the characteristics of the brain’s elektorogenezis and cerebral hemodynamics in patients with hypertensive encephalopathy and related dyscirculatory hypothyroidism.
We examined 97 patients, including 60 people with the HDE and the associated hypothyroidism and 37 - with the HDE without hypothyroidism.
The fact, that bioelectrical activity of the brain in patients with hypothyroidism and related HDE was mostly characterized by desynchronization and disorganization of the cortical rhythm, was revealed during the study. Changes revealed by the EEG reflected the presence of metabolic and hemodynamic disturbances of the brain. Also, in patients with GDE and accompanying hypothyroidism, according to the duplex scanning of cerebral vessels, there is a significant decrease in cerebral blood supply and structural changes in vessels with a decrease in the elasticity of the common carotid artery and vertebral arteries and a decrease in cerebral reactivity accordingly. Thus, the comorbidity of HDE and hypothyroidism appears credible changes in the functional activity of the brain and decrease in cerebral reactivity
Cognitive disorders in persons of working age with dyscirculatory encephalopathy
Decreased cognitive function is one of the most common and socially significant disorders of the nervous system. The prevalence of cognitive disorders is associated with an increase in the occurrence of major risk factors for the development of cognitive decline such as arterial hypertension, atherosclerosis of cerebral vessels, diabetes mellitus etc., which causes the relevance of this problem for neurologists and doctors
Measurement of the branching fractions for Cabibbo-suppressed decays and at Belle
International audienceWe present measurements of the branching fractions for the singly Cabibbo-suppressed decays and , and the doubly Cabibbo-suppressed decay , based on 980 of data recorded by the Belle experiment at the KEKB collider. We measure these modes relative to the Cabibbo-favored modes and . Our results for the ratios of branching fractions are , , and , where the uncertainties are statistical and systematic, respectively. The second value corresponds to , where is the Cabibbo angle; this value is larger than other measured ratios of branching fractions for a doubly Cabibbo-suppressed charm decay to a Cabibbo-favored decay. Multiplying these results by world average values for and yields , , and , where the third uncertainty is due to the branching fraction of the normalization mode. The first two results are consistent with, but more precise than, the current world averages. The last result is the first measurement of this branching fraction
Test of light-lepton universality in decays with the Belle II experiment
International audienceWe present a measurement of the ratio of branching fractions of the lepton decaying to muons or electrons using data collected with the Belle II detector at the SuperKEKB collider. The sample has an integrated luminosity of 362 fb at a centre-of-mass energy of 10.58 GeV. Using an optimised event selection, a binned maximum likelihood fit is performed using the momentum spectra of the electron and muon candidates. The result, , where the first uncertainty is statistical and the second is systematic, is the most precise to date. It provides a stringent test of the light-lepton universality, translating to a ratio of the couplings of the muon and electron to the boson in decays of , in agreement with the standard model expectation of unity