1. INTRODUCTION Multicarrier modulation techniques, such as, OFDM (Orthogonal Frequency Division Modulation) and DMT (Discrete Multi-Tone), have received great attention in high-speed data communication systems . In communication systems, OFDM has become popular in various standards, for example, local area network (WLAN), digital audio broadcasting… (More)
BACKGROUND The incidence of breast cancer in young women (age < 35) is low. The biology of the disease in this age group is poorly understood, and there are conflicting data regarding the prognosis for these women compared to older patients. METHODS We retrospectively analyzed 2040 consecutive primary invasive breast cancer patients who underwent surgical… (More)
We report the characteristics of three cell lines (designated, SNU-80, SNU-373 and SNU-790), which were established from two papillary carcinomas and one anaplastic carcinoma obtained from three Korean thyroid carcinoma patients. All cell lines grow as adherent cells. Electron microscopy characteristically showed cytoplasmic invaginations of nuclei and… (More)
Multiple endocrine neoplasia type 2 (MEN2) syndromes are inherited in an autosomal dominant fashion with high penetrance. There are three subtypes, namely, MEN2A (multiple endocrine neoplasia type 2A), MEN2B (multiple endocrine neoplasia type 2B), and familial medullary thyroid carcinoma. The variations in the RET gene play an important role in the MEN2… (More)
Purpose: Nearly half of all breast cancers are treated with breast conserving therapy (BCT). The purpose of this study was to identify the risk factors for ipsilateral breast tumor recurrence (IBTR) after BCT in T1 and T2 breast cancer patients. Methods: The medical records of 294 T1 or T2 breast cancer patients who underwent BCT at Seoul National… (More)
1999 Automated detection of Salmonella spp. in foods. 2000 A new rapid automated method for the detection of Listeria from environmental swabs and sponges. Rapid detection of low levels of Listeria in foods and next-day confirmation of L. monocytogenes.