Tag: science
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Robert Hooke and Micrographia
JMS Pearce Hull, England Fig 1. Cells in cork tree bark. From Hooke’s Micrographia via the Encyclopaedia Britannica. It is perhaps rash to attempt to appraise the work of Robert Hooke (1635–1703), but renewed attention is merited to a great scientist whose contribution to medicine and science has not been adequately acknowledged. Robert Hooke…
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Keeping corpses company
Nater AkpenMakurdi, Benue State, Nigeria Inspired by an error where he had misjudged the time since death—not by hours or days—by 112 years,1 William Bass set up the Anthropological Research Facility in Tennessee. His request to his dean was simple: Give me some land to put dead bodies on. His research facility, colloquially called the…
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Fraudulent medical research and “zombie articles”
Howard Fischer Uppsala, Sweden A misleadingly scaled pictogram, in which there seem to be more bananas collected than the other fruits. “Pictograph not aligned and different size” by Smallman12q on Wikimedia. CC BY-SA 3.0. A correctly scaled pictogram, in which the fruit icons are of nearly equal size. “Pictograph aligned and similar size” by…
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Christopher Wren’s contributions to medicine
JMS Pearce Hull, England Fig 1. Left: Sir Christopher Wren. From James Bissett’s Magnificent Guide, 1808. Wellcome Collection via Wikimedia. Public domain. Right: Blue plaque at Hampton Court Green. Photo by Edwardx on Wikimedia. CC BY-SA 4.0. An extraordinary natural philosopher and Renaissance man, Christopher Wren (1632–1723) (Fig 1) was primarily an astronomer and…
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A note on circadian clocks
JMS Pearce Hull, England I first started to enquire about circadian rhythms when wondering what it was that caused the periodicity of migraines in relationship to such diverse factors as emotions, tiredness, relaxation, hormonal changes, bright lights, and noise.1 The periodic threshold appeared susceptible to hypothalamic function, which in turn was modulated by seasonal…
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From silks to science: The history of hematoxylin and eosin staining
Vidhi Naik Aberdeen, Scotland A slice of logwood, notably depicting its deeply colored heartwood, atop different fabrics stained by logwood dye. Image obtained and published with permission from Botanical Colors. Introduction Hematoxylin and eosin, dyes used to stain tissue samples, collectively known as H&E, form the benchmark for histological stains. These dyes possess a…
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Help from the horseshoe crab
Howard Fischer Uppsala, Sweden Horseshoe crab. Crop of photo by Didier Descouens, 2009, via Wikimedia. CC BY-SA 4.0. The horseshoe crab (Limulus polyphemus) has not changed in more than 450 million years. It has been called “a living fossil.”1 It is, in fact, not a crab at all, but an arthropod, more closely related…
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The origins of NIH medical research grants
Edward Tabor Bethesda, MD, United States The main administration building at the “National Institute of Health,” photographed sometime between 1940–1947, before the name was changed to “National Institutes of Health.” The original name can be seen under the cornice. From the “Images from the History of Medicine” collection at the National Library of Medicine,…
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The beginnings of cell theory: Schleiden, Schwann, and Virchow
JMS Pearce Hull, England Figure 1. Robert Hooke’s pores (cells) of the cork oak. Wellcome Collection. CC BY 4.0. Every schoolchild is taught in biology about cells and their elemental importance. Students of biological and medical sciences also learn about the Schwann cell sheath that invests nerve fibers. What is less well known is…