Publications by authors named "R Michel"

Salinization is one of the main pedogenetic processes occurring on the semiarid zone of the Weddel sea, like in Seymour Island, where salt-affected soils are widespread. This study aimed to investigate whether topography controls the distribution of salt-affected soils on Seymour Island, particularly with reference to the Lopez de Bertodano Formation. Chemical and physical results from 45 soil profiles were used, where morphometric variables were extracted.

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Introduction: Castleman disease (CD) is a rare lymphoproliferative disorder having a variegated clinical presentation. Diagnosis of the idiopathic HIV- and HHV8-negative multicentric CD (iMCD) subtype poses a challenge given its non-specific clinical manifestations. iMCD presents as diffuse lymphadenopathy with inflammatory manifestations, primarily driven by interleukin-6 (IL-6).

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Exposure of the skin to ultraviolet (UV) radiation is associated with many pathological conditions such as premature aging and skin cancer. Furthermore, members of Nicotinamide Adenine Dinucleotide Phosphate-oxidase (NADPH oxidase or NOX) enzyme family can produce UV-induced reactive oxygen species (ROS), even after cessation of radiation exposure. The caffeic acid-phthalimide (CF) compound is a potent antioxidant, which reduces the generation of ROS.

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Article Synopsis
  • The Antarctic climate limits soil formation and the development of ecosystems, leading to most biological activity occurring during the brief summer in ice-free areas, where penguins contribute to nutrient transport through guano.
  • This study analyzes the ornithogenic soils of Half Moon Island, focusing on how the island's geology, vegetation, and landforms affect soil characteristics by examining 21 soil profiles collected during the 2014/2015 summer.
  • Results show that the soils are mostly Cryosols and Leptosols with high gravel content and varying chemical properties, emphasizing how seabird activity and glacial processes shape soil diversity in Antarctic regions.
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Ground temperature's sensitivity to climate change has garnered attention. This study aimed to monitor and analyze temporal trends and estimate Active Layer Thickness from a monitoring point at Fildes Peninsula, King George Island, in Antarctica. Quality control and consistency analysis were performed on the data.

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