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We report Langerhans cell (LC) histiocytosis in a male infant who developed numerous papular lesions on the trunk and posterior scalp soon after birth and spontaneously recovered from the disease within 7 months. Histologically S-100-positive cells were detected in the epidermis and papillary dermis, in some lesions mostly in the epidermis. Tumor cells in(More)
The watermarking is a digital process that preserves copyright and ownership of digital media such as audio, video, and images. This process depends on hiding a digital signature in a carrier signal where this signature has to be related to the original signal. In this paper we develop a simple watermarking method operating in the frequency domain for(More)
This paper introduces a strategy, a user model, and a methodology for utilising adaptive hypermedia in performance support domain and specifically for fault diagnosis. This utilisation is implemented by employing task-specific and user-centred hypermedia which allows supporting content to be synchronized with the diagnostic expert system inference process.(More)
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