Publications by authors named "C Ragon"
Article Synopsis
- The study investigates climate simulations around the Permian-Triassic Boundary (PTB), addressing issues like data limitations and their impact on initial and boundary conditions.
- Using the MIT general circulation model, the researchers identify multiple stable climate states that can vary by about 10 °C in global surface air temperature due to different atmospheric CO levels.
- The findings enhance understanding of climatic changes in the Early Triassic, offering explanations for observed geological variations and inconsistencies between simulations and data from that period.
The climate is a complex nonequilibrium dynamical system that relaxes toward a steady state under the continuous input of solar radiation and dissipative mechanisms. The steady state is not necessarily unique. A useful tool to describe the possible steady states under different forcing is the bifurcation diagram, which reveals the regions of multistability, the position of tipping points, and the range of stability of each steady state.
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- The composition of organic aerosols affects their toxicity and ability to form cloud droplets, influencing climate and air quality.
- Understanding the chemical and physical processes within nanometer-sized particles is complicated, hindering accurate predictions of aerosol formation.
- This study reveals that the Laplace pressure in nanoparticles significantly slows chemical reactions, impacting the formation of reaction products in atmospheric aerosols.
Hereditary angioedema: Report of the dental treatment of 12 Brazilian patients.
Oral Surg Oral Med Oral Pathol Oral Radiol
December 2020
Objective: The aim of this study was to report on clinical experience in Brazil in the dental treatment and the oral conditions of a group of patients with hereditary angioedema (HAE).
Study Design: The study analyzed demographic data, type of HAE, intensity of attacks, long-term and short-term prophylaxis, dental procedures, and occurrence of crises after the procedures were performed. Radiographic evaluation of the number of teeth and bone loss was also performed.
Background: Tetrasomy 21 is a very rare aneuploidy which could clinically resemble a Down syndrome. It was most often described in its partial form than complete. We report the prenatal, pathological and genetic characteristics of a fetus with mosaic complete tetrasomy 21.
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