Jae Hoon Cho

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The social foraging behavior of Escherichia coli bacteria has been used to solve optimization problems. This paper proposes a hybrid approach involving genetic algorithms (GA) and bacterial foraging (BF) algorithms for function optimization problems. We first illustrate the proposed method using four test functions and the performance of the algorithm is(More)
Nasolabial cysts are rare but easily identifiable when they do occur. They are thought to arise from the remnants of the nasolacrimal ducts, but most of the available information on these cysts is limited to isolated case reports. The purpose of our study was to examine the clinical and pathologic features of nasolabial cysts in order to provide a basis for(More)
Surfactant proteins (SPs), designated SP-A, SP-B, SP-C, and SP-D, play an important role in surfactant metabolism and host defense mechanisms in the lung. This study investigates expression of the different SP types in human nasal mucosa and cultured normal human nasal epithelial (NHNE) cells and whether the expression of SP mRNA is influenced by the degree(More)
PURPOSE To determine whether computed tomographic angiography (CTA) is a feasible modality for assessing stented carotid arteries and whether in-stent restenosis based on CTA concurs with ultrasonography (US). METHODS A retrospective review was conducted of 37 follow-up CTA and US images from 27 patients (23 men; median age 70 years, range 56-77) who(More)
Sudden sensorineural hearing loss that presents as the initial sign of haematological disease is very rare. Chronic myelogenous leukaemia has been implicated as a causative factor of sudden sensorineural hearing loss. A 49-year-old male presented with unilateral sudden sensorineural hearing loss. The patient was found to have chronic myelogenous leukaemia(More)
OBJECTIVE To evaluate the prevalence of specific frontal recess cells in Korean and Caucasian populations; to evaluate and compare the relationship between anterior skull base length and frontal recess pneumatization in these two populations. MATERIALS AND METHODS Frontal recess anatomy was studied with high resolution sinus CT scans obtained in 60 Korean(More)
Advances in culture-independent sequencing methods have been utilised in recent studies to understand the phylogenetic composition of the human microbiome of healthy and diseased skin. Allergic rhinitis (AR) is an inflammatory condition of the nasal cavity caused by environmental allergens. Although nasal microbial communities have been considered important(More)