Publications by authors named "Shih Wei Yeh"

This paper presents an efficient VLSI implementation of on-line recursive ICA (ORICA) processor for real-time multi-channel EEG signal separation. The proposed design contains a system control unit, a whitening unit, a singular value decomposition unit, a floating matrix multiply unit and, and an ORICA weight training unit. Because the input sample rate of the ORICA processor is 128 Hz, the ORICA processor should produce independent components before the next sample is input in 1/128 s.

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This paper presents a pipeline VLSI design of fast singular value decomposition (SVD) processor for real-time electroencephalography (EEG) system based on on-line recursive independent component analysis (ORICA). Since SVD is used frequently in computations of the real-time EEG system, a low-latency and high-accuracy SVD processor is essential. During the EEG system process, the proposed SVD processor aims to solve the diagonal, inverse and inverse square root matrices of the target matrices in real time.

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Although pressure therapy is the mainstay of treatment for hypertrophic scars, its actual mechanism remains unknown. An in vitro study was designed to investigate the effects of positive pressure on the growth of human scar-derived fibroblasts through its transforming growth factor beta1 (TGF-beta1) secretion. A pneumatic pressure system connecting to a cell culture chamber was designed.

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Pemphigus vulgaris (PV) is a potentially fatal autoimmune mucocutaneous disease associated with production of IgG autoantibodies to desmoglein 3 (Dsg3), a 130-kDa epidermal cadherin protein. The binding of pathogenic antibody to Dsg3 on epidermal keratinocytes leads to loss of intercellular adhesion and results in intraepithelial blister formation. Here, we describe a human monoclonal antibody, PVMAB786, a Dsg3-specific IgG4 antibody, from an untreated patient with active PV.

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Background: Pemphigus vulgaris is a rare, chronic, autoimmune mucocutaneous blistering disease. The disease can progress to involve the skin and multiple mucosae. Pemphigus vulgaris can be associated with a high morbidity and significant mortality rate.

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Mucous membrane pemphigoid (MMP) is an autoimmune mucocutaneous blistering disease characterized by autoantibodies to components within the basement membrane zone. In this study, we report the titers of autoantibodies to antigens in the BMZ, in the sera of 13 patients, treated with intravenous immunoglobulin as monotherapy over a consecutive 18-month period. Using bovine gingiva lysate as substrate in an immunoblot assay, autoantibodies to human bullous pemphigoid antigens (BPAg1 and BPAg2), human beta4 integrin, and laminin 5 were measured.

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Background: Vancomycin-induced linear immunoglobulin A (IgA) disease, an autoimmune, blistering disease in response to vancomycin administration, is characterized by a subepidermal, vesiculobullous eruption and linear IgA deposition along the basement membrane zone on direct immunofluorescence.

Case Report: We report the case of an 81-year-old man treated with vancomycin who developed diffuse erythema multiforme and tense bullae involving the palmoplantar surfaces. Discontinuation of vancomycin therapy resulted in complete resolution of this patient's cutaneous eruption.

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This article discusses the major blistering diseases in the geriatric population. The diagnosis of both immune- and non-immune-mediated blistering disorders can be confirmed with the help of histologic and immunopathologic studies. Various serologic assays, which are more specific, also can be used to confirm the diagnosis of autoimmune blistering diseases.

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Because of its distinctive clinical features and histopathological characteristics, zosteriform connective tissue nevus is considered a separate entity from other connective tissue nevi. Only two cases have previously been reported in the worldwide dermatological literature. Here we report a zosteriform connective tissue nevus in a 3-year-old boy with similar clinical presentation.

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