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from article Botulism
A colony of Clostridium botulinum, the causative agent of botulism, growing on egg yolk agar. (Credit: Larry Stauffer/Centers for Disease Control and Prevention)
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from article Foot-and-mouth disease
Mouth of a steer with foot-and-mouth disease lesions on the tongue, along the lower gum, and inside the lower lip.
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from article Foot-and-mouth disease
Schematic diagram of the capsid of a foot-and- mouth disease virion. The four structural proteins, VP1–4 (also called 1A, 1B, 1C, and 1D), make up a protein subunit or protomer. Five protomers join to form a pentamer, and a capsid is an assembly of…
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from article Particle track etching
Upper images show increasing radiation damage produced by a high-energy uranium nucleus in the cosmic radiation as it penetrates a thick stack of Lexan plastic sheets and slows down. The lengths of the etched cones in these three sheets, taken at…
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from article Particle track etching
Etched conical pits in a sheet of allyl diglycol carbonate (CR-39 plastic) irradiated at normal incidence with 60-MeV alpha particles. (From P. B. Price et al., Do energetic heavy nuclei penetrate deeply into the Earth's atmosphere?, Proc. Nat.…
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from article Particle track etching
Etched fossil particle tracks. (a) Tracks from spontaneous fission of 238U and 244Pu in a zircon crystal from a lunar breccia, seen by scanning electron microscopy (from D. Braddy et al., Crystal chemistry of Pu and U and concordant fission track…
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from article Particle track etching
Reconstructed images of right and left breasts of a patient taken by using a 3600-MeV carbon-ion beam at the Lawrence Berkeley Laboratory Bevalac accelerator. Arrow indicates 1-cm (0.4-in.) carcinoma. (From C. A. Tobias et al., Lawrence Berkeley…
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from article Medical ultrasonic tomography
Ultrasonic B-scan of the abdomen.
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from article Borrelia
A digitally colorized scanning electron micrograph of a grouping of numerous Borrelia burgdorferi bacteria. The B. burgdorferi pathogen is responsible for causing Lyme disease, which is transmitted to humans by way of a tick bite. Borrelia…
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from article Cognition
The internal structures and processes that constitute the basis for cognition emanate from the brain (shown here in a colorized magnetic resonance image). (Credit: Shutterstock)
