김세훈 교수

Chemically modified epitaxial graphene (EG) by azidotrimethylsilane (ATS) was investigated using high-resolution photoemission spectroscopy (HRPES). Through the spectral analysis, we clearly confirmed that EG is modified by thermally generated nitrene radicals and found that the bonding nature between the nitrene radicals and EG is covalent. As we observe bonding nature of N 1s peaks, we found that two distinct N peaks can be clearly distinguished in the spectra. Using a covalently bound stretch

PURPOSE: To determine if defects in mitochondrial respiratory chain enzyme complexes (MRCs) contribute to the etiology of childhood epilepsy. METHODS: We reviewed the clinical and laboratory features of 48 epileptic patients (23 male, 25 female) with MRC defects that were confirmed by biochemical assays using muscle biopsies. RESULTS: (1) Thirty-five cases (72.9%) were MRC I deficient, one case (2.1%) was MRC II deficient, 11 cases (22.9%) were MRC IV deficient, and one case (2.1%) had combined

PURPOSE: The purpose of this study is to determine the sensibility of each imaging tool in identifying focal cortical dysplasia (FCD) in children and adolescents with epilepsy and to define the prognostic factors of pediatric and adolescent epilepsy surgery. METHODS: We identified 48 children with FCD who underwent resective surgery and analyzed their preoperative data. The results of various anatomic and functional neuroimaging studies were compared for accuracy in locating the lesion. We also

A mixed-basis band-structure interpolation scheme for fcc d-band metals has been extended to include fluorite-structure (${\mathrm{CaF}}_{2}$) compounds by incorporating more plane waves in the basis set. Since the fluorite and fcc structures belong to the same space group, the interpolation scheme originally developed for fcc d-band metals is also capable of generating fluorite band structures. The interpolation parameters for ${\mathrm{NiSi}}_{2}$, ${\mathrm{AuAl}}_{2}$, ${\mathrm{AuGa}}_{2}$,

Stereotactic radiosurgery has been an important treatment modality in the treatment of pituitary adenomas. However, it has the disadvantage of a delayed effect on hormonal normalization compared with microsurgical resection of functioning pituitary adenomas. To define the efficacy of radiosurgery in the treatment of functioning pituitary adenomas, 37 cases with a mean follow-up duration of 26.9 months were analyzed. There were 18 prolactinomas, 11 cases with acromegaly, and 8 cases with Cushing

BACKGROUND: Spinal cord glioma grade IV is a rare, diffuse midline glioma. H3 K27M-mutant was classified in a different entity in the 2016 World Health Organization (WHO) classification recently. No reports about prognosis of spinal cord glioma grade IV are available yet. OBJECTIVE: To analyze the prognostic factors for spinal cord glioma grade IV. METHODS: Twenty-five patients with spinal cord glioma of grade IV who underwent surgery in a single institute were selected. All grade IV spinal cord

In this paper, we consider the frequency assignment problem (FAP) in a cellular mobile communication system under the assumption that there is no channel interference between two cells separated by more than a certain distance. This special structure is observed in most cellular systems. To handle the considered FAP, we use the pattern approach which fits naturally to the problem. Based on this approach, we are able to formulate the considered FAP into a manageable optimization problem and propo

The histopathologic type of lung cancer is known to be correlated with tumor behavior and prognosis. However, this classification is subjective and no specific molecular markers have been identified. The aim of this study was to identify protein markers in different types of nonsmall cell lung cancers. Two-dimensional polyacrylamide gel electrophoresis analysis was performed with paired samples of three squamous cell carcinomas, three adenocarcinomas, four large cell carcinomas, and four basaloi

OBJECTIVES/HYPOTHESIS: The objective of this prospective study was to confirm the validity of transoral robotic supraglottic partial laryngectomy as a conservation surgery for treating supraglottic cancer. STUDY DESIGN: Prospective case study. METHODS: Between December 2009 and November 2011, 16 patients were enrolled in this study. Acoustic waveform analysis was conducted and Voice Handicap Index 10 was measured to assess voice status. Videopharyngogram study and the functional outcome swallowi