Harvard's HIV/AIDS Poster Archive: A Visual History of Public Health Messaging

2025-05-14

Harvard Library's digital archive of over 3,000 posters on the HIV/AIDS epidemic reveals the evolution of public health communication. Early posters prioritized simple, impactful visuals and a single, emotionally resonant message with a clear call to action (phone number, website, now QR code). Later campaigns diversified messaging for varied audiences, shifting from shame-based to positive and affirming approaches. Researchers emphasize co-creating messages with target audiences for better impact. The archive highlights the progress made with modern prevention and treatment (PrEP, antivirals), aiming to end HIV transmission and prevent further deaths, contrasting past limitations with current capabilities to eliminate new infections.

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The Twilight of the Dollar? Harvard Economist Predicts a Decline

2025-05-09
The Twilight of the Dollar?  Harvard Economist Predicts a Decline

Harvard economics professor Kenneth Rogoff, in his new book "Our Dollar, Your Problem," predicts a decline in the U.S. dollar's global dominance. While arguing the dollar will remain the premier currency in global finance, its uniqueness will be less pronounced. Rogoff weaves together personal anecdotes and macroeconomic analysis to explore the rise and fall of dollar hegemony, citing factors such as the U.S. fiscal deficit, declining Federal Reserve independence, and efforts by other nations to de-dollarize as accelerating this trend. He posits that the waning of dollar dominance will have profound implications for the U.S. and the global economy, including higher interest rates and increased economic risks.

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Tech US Dollar

Snowball the Dancing Cockatoo: Challenging the Uniqueness of Human Musicality

2025-03-05
Snowball the Dancing Cockatoo: Challenging the Uniqueness of Human Musicality

Snowball, a cockatoo, became an internet sensation for his ability to dance to music. Neuroscientist Ani Patel investigated, finding Snowball's dancing wasn't simple imitation but a complex cognitive act showing rhythm understanding and creativity. This challenges the notion that musicality and dancing are uniquely human, suggesting other vocal-learning animals possess similar brain functions. Snowball's diverse and spontaneous moves offer new insights into animal creativity and cognition, potentially impacting rhythm-based therapies for neurological disorders.

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