Publications by authors named "S Harmand"
Article Synopsis
- The Turkana Basin, despite being one of the driest areas in East Africa, has rich Plio-Pleistocene sediments that indicate the presence of freshwater resources for early hominins between 4.2 to 0.7 million years ago.
- Research reveals that freshwater river and lake systems expanded in the Turkana Basin, providing vital drinking water and food sources during specific periods, notably from 4.20 Ma to 0.75 Ma.
- Key milestones in hominin evolution and behavior, such as the emergence of new species and the development of stone tools, coincided with these freshwater conditions, highlighting their importance in early human development.
Since the launch of the Journal of Human Evolution fifty years ago, the archaeology of human origins and the evolution of culture have witnessed major breakthroughs with the identification of several new archaeological sites whose chronology has been slowly pushed back until the discovery of the earliest evidence of stone tool making at Lomekwi 3 (West Turkana, Kenya), at 3.3 Ma. Parallel to these discoveries, the study of wild primates, especially chimpanzees (Pan troglodytes), allowed the development of models to understand key aspects of the behavior of extinct hominin species.
View Article and Find Full Text PDFThis study aims to understand and compare the evaporation dynamics of drops of healthy and pathological porcine blood (glomerulonephritis disease) evaporated on hydrophilic glass substrates at different surface temperatures (): 23, 37, 60, and 90 °C. Subsequently, the different induced phenomena are characterized and described. Additionally, drops of water were evaporated at these four surface temperatures to better understand the difference between healthy and pathological porcine blood.
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- Limited data exists in Europe, particularly in France, about how to effectively manage anaemia in patients with dialysis-dependent chronic kidney disease (DD CKD).
- A study analyzed medical records from 2016, including 1,286 patients with anaemia, focusing on their demographics, treatment regimens, and outcomes over two years.
- While most patients received treatments like iron and erythropoietin-stimulating agents, the duration of hemoglobin levels within the recommended range was short, indicating a need for improved anaemia management strategies.
To characterize various induced phenomena and the blood of healthy sheep using several parameters, the evaporation dynamics of 72 drops of sheep blood evaporated at several temperatures: 23, 37, 60, and 90 °C on glass hydrophilic substrates were studied. This allows the prediction of the sheep blood pattern, knowing the surface temperature and vice versa. To determine the variation in the Marangoni number between the center and the triple line, an infrared thermography method was used to measure the temperature variation along the surface of the drop.
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