Understanding Shape and Centroid Deviations in 39 Strong Lensing Galaxy Clusters in Various Dynamical States

Through observational tests of strong lensing galaxy clusters, we can test simulation derived structure predictions that follow from $\Lambda$ Cold Dark Matter ($\Lambda$CDM) cosmology. The shape and centroid deviations between the total matter distribution, stellar matter distributions, and hot intracluster gas distribution serve as an observational test of these theoretical structure predictions. We measure the position angles, ellipticities, and locations/centroids of the brightest cluster galaxy (BCG), intracluster light (ICL), the hot intracluster medium (ICM), and the core lensing mass for a sample of strong lensing galaxy clusters from the SDSS Giant Arcs Survey (SGAS). We utilize HST WFC3/IR imaging data to measure the shapes/centroids of the ICL and BCG distributions and use Chandra ACIS-I X-ray data to measure the shapes/centroids of ICM. Additionally, we measure the concentration parameter c and asymmetry parameter A to incorporate cluster dynamical state into our analysis. Using this multicomponent approach, we attempt to constrain the astrophysics of our strong lensing cluster sample and evaluate the different components in terms of their ability to trace out the DM halo of clusters in various dynamical states.Comment: 6 pages, 4 figures, to appear in Proc. of the mm Universe 2023 conference, Grenoble (France), June 2023, published by F. Mayet et al. (Eds), EPJ Web of conferences, EDP Science

Novel Block Diagonalization for Reducing Features and Computations in Medical Diagnosis

Author's accepted manuscript.Available from 28/11/2021.acceptedVersio

House Elevation

Ink, watercolor/board; 30" x 20"Part of the Archives' Visual Materials collectio

Acute chest pain with normal coronary angiogram: role of contrast-enhanced multidetector computed tomography in the differential diagnosis between myocarditis and myocardial infarction

[DOI:\hrefhttps://dx.doi.org/10.1097/RCT.0b013e318145219910.1097/RCT.0b013e3181452199] [PubMed:\hrefhttps://www.ncbi.nlm.nih.gov/pubmed/1837930718379307]International audienceTo evaluate the accuracy of delayed-enhanced multidetector computed tomography (MSCT) for differentiating between myocarditis and myocardial infarction in patients with normal x-ray coronary angiography.\ Twelve consecutive patients referred for acute chest pain and normal coronary arteries on x-ray coronary angiography were involved in this study. Delayed-enhanced MSCT and postgadolinium delayed-enhanced magnetic resonance imaging (MRI) examinations were performed within 36 hours and 4 days, respectively, after patient admission. Comparison between delayed-enhanced MSCT and MRI was performed by 3 independent blinded observers in term of final diagnosis, number of involved segments, and transmural extent.\ Final diagnosis between myocarditis and myocardial infarction was identical for delayed-enhanced MSCT and MRI with a significant agreement for number of involved segments and transmural extension. Interobserver reproducibility was good for both techniques.\ We demonstrated that delayed-enhanced MSCT allows differentiation between myocardial infarction and myocarditis with the same accuracy at acute phase compared with MRI

Acute chest pain with normal coronary angiogram : role of contrast-enhanced multidetector tomography in the differential diagnosis between myocarditis and myocardial infarction

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PREVALÊNCIA DE DISTÚRBIOS POSTURAIS EM ALUNOS DO ENSINO MÉDIO DO MUNICÍPIO DE PORTO VELHO

O presente estudo teve como objetivo, investigar a prevalência de desvios posturais em escolares. Apopulação avaliada foi composta por alunos do 1°, 2 ° e 3° ano do ensino médio de uma escola darede estadual de educação da cidade de Porto Velho/RO, tendo como amostra 103 alunos com afaixa etária de 14 a 18 anos. A coleta de dados da pesquisa foi realizada por meio de avaliaçãopostural utilizando o simetrógrafo, e após a aplicação de um questionário misto referente aos hábitosrotineiros dos alunos. A análise dos dados foi realizada por intermédio de percentual das médias dasvariáveis estudadas. Os resultados obtidos mediante o estudo descreve que dos 103 alunosavaliados, há uma prevalência de 4% de casos de hipercifose, 10% de hiperlordose, e 35% deescoliose, sendo que os hábitos posturais desses escolares sugerem relação com as alteraçõesposturais encontradas

Assessment of acute myocardial infarction using MDCT after percutaneous coronary intervention: comparison with MRI

[DOI:\hrefhttps://dx.doi.org/10.2214/AJR.07.340410.2214/AJR.07.3404] [PubMed:\hrefhttps://www.ncbi.nlm.nih.gov/pubmed/1864791518647915]Imaging to determine myocardial infarct size is difficult in the emergency setting because the current gold standards, MRI and nuclear medicine techniques, are difficult to perform in unstable patients. Delayed enhanced MDCT has recently been proposed as a technique to study contrast uptake in infarcted myocardium. In this study, we compared the extent of acute myocardial infarction as measured by delayed enhanced MDCT performed immediately after percutaneous coronary intervention (PCI) without an additional iodine injection with that measured by delayed gadolinium-enhanced MRI.\ Nineteen consecutive patients presenting with primary acute myocardial infarction underwent delayed enhanced MDCT immediately after coronary angioplasty and underwent delayed enhanced MRI within 8 days of angioplasty. Only patients with a thrombolysis in myocardial infarction (TIMI) score of 0 or 1 of the culprit coronary artery before endovascular angioplasty and TIMI score of 2 or 3 after angioplasty were selected. Comparison of delayed enhanced MDCT and delayed enhanced MRI was performed by three observers and focused on identifying the involved segments and determining the transmural extent of enhancement and infarct size.\ The mean signal intensity was significantly higher in the involved territory than in healthy myocardium: 197 +/- 81 H versus 71 +/- 20 H, respectively (p < 0.0001). We found significant agreement between delayed enhanced MDCT and delayed enhanced MRI for the number of involved segments, transmural extent of enhancement, and infarct size (r(2) = 0.74, 0.76, and 0.67, respectively; p < 0.0001) with good interobserver reproducibility (kappa = 0.8).\ The results of our study show that delayed enhanced MDCT allows accurate visualization of early myocardial contrast uptake compared with delayed enhanced MRI and does not require an additional contrast injection after PCI