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Scholarship at Harvard

WHAT IS DASH?

DASH is the central, open-access institutional repository of research by members of the Harvard community. Harvard Library Open Scholarship and Research Data Services (OSRDS) operates DASH to provide the broadest possible access to Harvard's scholarship. This repository hosts a wide range of Harvard-affiliated scholarly works, including pre- and post-refereed journal articles, conference proceedings, theses and dissertations, working papers, and reports.

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Recent Submissions

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Kathryn Schwartz, Book Historian of the Modern Middle East
(Cambridge University Press, 2025-03-13) Blair, Ann; Zeghal, Malika
This article presents the contributions of Dr. Kathryn Schwartz (1984-2022), book historian of the modern Middle East. Her study of the origins and impact of the printing press in late Ottoman Egypt has challenged some long-standing assumptions in the historiography. She has also put into question the long-held belief that Ottomans banned printing. More broadly, her work has challenged Eurocentric approaches to this topic and has innovated by combining material and intellectual history.
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Active and stable PtPd diesel oxidation catalysts under industry-defined test protocols
(ChemSusChem, 2025-02-28) Lim, Kang Rui Garrick; Lim, Kang Rui Garrick; Shirman, Tanya; Toops, Todd J.; Alvarenga, Jack; Aizenberg, Michael; Aizenberg, Joanna
Nanoparticle-supported Pt and Pd catalysts are employed industrially to convert CO and hydrocarbon residue from incomplete diesel fuel combustion. However, these catalysts deactivate over time due to sintering, especially for Pt nanoparticles which readily generate volatile species under high operating temperatures. Here, we turned the detrimental vapor-mediated sintering of Pt into an advantage by using a physical mixture of Pt and Pd catalysts prepared using a raspberry-colloid-templating (RCT) method. The RCT method produced Pt/Al2O3 and Pd/Al2O3 catalysts with partially embedded NPs to inhibit surface-mediated sintering pathways. As validated using an industry-defined emission control test protocol, aging a physical mixture of Pt/Al2O3 and Pd/Al2O3 at high temperature produced an alloyed PtPd/Al2O3 catalyst that outperformed the fresh catalyst mixture and both individual catalysts for hydrocarbon conversion, while exhibiting high catalytic stability and resistance to sintering and to SO2 poisoning. X-ray photoelectron spectroscopy revealed that in the aged catalyst mixture, half of the Pd content existed in their more active metallic state, compared to the less active oxide forms in the fresh mixture and both individual catalysts, explaining the unusual activity enhancement. Our results represent a practical approach to producing active and stable PtPd/Al2O3 diesel oxidation catalysts for emission control applications.
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Investment Feminism and Women's Health
(2024) DiMarco, Marina; Higgins, Abigail; Richardson, Sarah; Bruch, Joseph Dov; Marsella, Jamie
This essay introduces the term investment feminism to characterize the phenomenon in which financial actors position investment as a powerful lever for advancing gender equity. We offer investment feminism as an analytic tool that illuminates patterns and relations incompletely revealed by existing concepts such as commodity feminism and neoliberal feminism. We develop the concept of investment feminism through a close analysis of its role in the femtech industry, which markets technology and products to promote women's health. Drawing on industry reports, press coverage, and marketing materials, we describe how venture capital firms and femtech startups proffer financial investment as a high-impact means of feminist political action. We argue that while technology has the potential to yield services, tools, diagnostics, and therapies that benefit women, the technological solutions promoted by investment feminism within the women’s health space favor individual self-maintenance rather than structural change. We offer the concept of investment feminism as an analytic tool to support feminist scholars and activists in attending to the role of the financial sector and its ever-increasing influence on gender relations and feminist movements.
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