On October 2, 1919, President Woodrow Wilson suffered a stroke that paralyzed the left half of his body. Wilson's stroke forced the American public to confront stroke, and laypeople came to identify stroke as a nervous disorder, rather than a condition rooted solely in psychological phenomena. His medical care was overseen by Cary Grayson, his personal internist, and Francis X. Dercum, a remarkably accomplished neurologist from Philadelphia. Dercum was very involved in the treatment of the President, from the day of the stroke until years later. While the medical records have been destroyed, some basic facts of Wilson's treatment and rehabilitation can be inferred from the literature. Although Woodrow Wilson was an exceptional patient, his care, albeit administered by some of the most famous physicians of the era, was typical of the time. Therefore, this paper's approach to Wilson's 1919 stroke contextualizes the President's case into the larger scheme of early twentieth-century neurology.
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http://dx.doi.org/10.1080/09647040701702702 | DOI Listing |
J Chem Phys
June 2024
Dave C. Swalm School of Chemical Engineering and Center for Advanced Vehicular Systems, Mississippi State University, Mississippi State, Mississippi 39762, USA.
In the liquid phase of heterogeneous catalysis, solvent plays an important role and governs the kinetics and thermodynamics of a reaction. Although it is often difficult to quantify the role of the solvent, it becomes particularly challenging when a zeolite is used as the catalyst. This difficulty arises from the complex nature of the liquid/zeolite interface and the different solvation environments around catalytically active sites.
View Article and Find Full Text PDFJ Phys Chem B
February 2022
Dave C. Swalm School of Chemical Engineering and Center for Advanced Vehicular Systems, Mississippi State University, Mississippi State, Mississippi 39762, United States.
Liquid-phase heterogeneous catalysis using zeolites is important for biomass conversion to fuels and chemicals. There is a substantial body of work on gas-phase sorption in zeolites with different topologies; however, studies investigating the diffusion of complex molecules in liquid medium into zeolitic nanopores are scarce. Here, we present a molecular dynamics study to understand the sorption and diffusion of aqueous β-d-glucose into β-zeolite silicate at = 395 K and = 1 bar.
View Article and Find Full Text PDFJ Chem Phys
September 2019
Dave C. Swalm School of Chemical Engineering and Center for Advanced Vehicular Systems, Mississippi State University, Mississippi State, Mississippi 39762, USA.
Lignin as a potential renewable source of biofuels, chemicals, and other value-added products has gained much attention. However, the complexity of lignin structure poses a significant challenge for developing efficient valorization techniques. As most processes involve solvothermal conditions to minimize energy cost, lignin depolymerization is governed by reaction conditions (temperature and pressure) and solvents.
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