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@imaginarydesert.bsky.social

Asian Lesbian (女同). Politics free zone. Just here for quiet enjoyment. I love art and beauty ⚢

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Admirable Women@admirablewomen.bsky.social · 4d ago

Biochemist Dr. Florence Seibert developed the Purified Protein Derivative in the 1930s that standardized tuberculosis testing worldwide by 1952. Before her work, TB skin tests were inconsistent/unreliable.It remains the basis for the TB skin test used today. Born #OTD in 1897. #WomenInSTEM

A vintage black-and-white studio portrait features biochemist Dr. Florence Seibert (1900–1991), famed for developing the Purified Protein Derivative (PPD) that standardized tuberculosis testing worldwide. Captured from the chest up, she poses in a three-quarter turn while looking directly at the camera with a subtle, intelligent smile, establishing a serene, professional, and historically significant mood. Her dark hair is styled in a classic 1920s short bob featuring prominent finger waves framing her forehead. She wears delicate, rimless spectacles and a light-colored blouse designed with a prominent collar and soft ruffled detailing along the edges. The composition employs soft-focus lighting typical of early 20th-century photography, casting gentle highlights across her face against a smooth, dark, non-descript studio backdrop. In the bottom right corner, a faint, embossed photographer's stamp adds an authentic period touch to this archival image celebrating a foundational figure in medicine.