File:Real-time-phase-contrast-x-ray-imaging-a-new-technique-for-the-study-of-animal-form-and-function-1741-7007-5-6-S1.ogv

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Real-time-phase-contrast-x-ray-imaging-a-new-technique-for-the-study-of-animal-form-and-function-1741-7007-5-6-S1.ogv(Ogg Theora video file, length 14 s, 400 × 300 pixels, 2.87 Mbps, file size: 4.75 MB)

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English: Additional File 1 Rhythmic compressive movements in the tracheal system in the carabid beetle Platynus decentis, demonstrating the utility of phase-contrast synchrotron imaging for studies of respiratory dynamics in small animals. View (1.3 × 1.0 mm) is a dorsoventral projection through prothorax of a beetle (mass ~ 45 mg) using monochromatic x-rays (25 keV). The midline of the beetle lies on the right side of the video between the two coxae (large circular structures, bottom right). Collapse and reinflation of the air-filled tracheal tubes can be seen in the majority of the tubes in view. The smallest tracheal tubes that can be seen are about 10 μm in diameter; tracheoles (<1 μm diameter) are too small to be resolved. The circle and dark opaque spots the upper right are an air bubble and particles in the esophagus, respectively; note that they move anteriorly and posteriorly during the compression of the tracheal tubes. The white and dark spots that do not move with the beetle movement are artifacts due to the incident beam and detector system.
Date
Source Socha J, Westneat M, Harrison J, Waters J, Lee W (2007). "Real-time phase-contrast x-ray imaging: a new technique for the study of animal form and function". BMC Biology. DOI:10.1186/1741-7007-5-6. PMID 17331247. PMC: 1831761.
Author Socha J, Westneat M, Harrison J, Waters J, Lee W
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Date/TimeThumbnailDimensionsUserComment
current10:31, 20 November 201214 s, 400 × 300 (4.75 MB)Open Access Media Importer Bot (talk | contribs)Automatically uploaded media file from Open Access source. Please report problems or suggestions here.

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VP9 240P 311 kbps Completed 03:47, 17 October 2018 19 s
Streaming 240p (VP9) 311 kbps Completed 17:05, 16 December 2023 1.0 s
WebM 360P 699 kbps Completed 08:03, 2 December 2023 3.0 s
Streaming 144p (MJPEG) 1.07 Mbps Completed 15:39, 18 November 2023 1.0 s

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