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PubMed · 7968391

Cables.

M Cushing
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Abstract

If you want to control your own computer installation, get the satisfaction of doing your own maintenance, and compensate for an inept or uninformed vendor, the information in this article will help you achieve these ends. Good luck and good cabling!

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Computer PeripheralsElectric ConductivityEquipment DesignHumansMedical Informatics ComputingTerminology as TopicJournal Article

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M Cushing. Cables.. https://pubmed.ncbi.nlm.nih.gov/7968391/

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PubMed1998

Reduction in size of digital images: does it lead to less detectability or loss of diagnostic information? .

OBJECTIVES: To analyse the effect of reduction in size of digital images on diagnostic outcome. METHODS: A series of 100 Visualix III (Gendex Dental Systems, Milano, Italy; Dentsply, Des Plaines, IL, USA) images was made of size 10 and 15 endodontic files in upper and lower (pre)molars. Three forms of image were created: (a) the original images, (b) reduced to one-half (containing one-quarter of the information of the original, and (c) zoomed-in, half-size images (magnification 2:1; original image size but with only one-quarter of the original information). Seven radiologists were asked to rate the position of the tip of the file, using a five-point confidence scale. ROC data were analysed by means of MANOVA statistics. RESULTS: A significant difference was found between the three image modalities for both size 10 (P < 0.005), and size 15 (P < 0.021) files. CONCLUSIONS: Reduction in size of digital images may cause less detectability as well as loss of diagnostic information.

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