Learn More
OBJECTIVE The purpose of this study is to elucidate the usefulness of magnetic resonance imaging (MRI) and positron emission tomography (PET) for the detection of parametrial involvement and lymph node metastasis in patients with cervical cancer. METHODS Thirty-six patients with cervical cancer were retrospectively enrolled. MRI and PET scans were(More)
This paper investigates how firms search for new products. While prior research takes a firm-centric view, we study how the firm’s search depends on that of its competitors. Drawing on organizational learning theory, we argue and find that search timing relative to competitors matters. Two seemingly contradictory views are tested: that competitors take away(More)
Jongseok Lee • Jeho Lee • Habin Lee Graduate School of Management, Korea Advanced Institute of Science and Technology, 207-43 Cheongryangri-dong, Dongdaemun-gu, Seoul 190-102, Korea, and Center for Emerging-Technology Assessment, Science and Technology Policy Institute, 395-70 Shindaebang-dong, Tongjak-gu, Seoul 156-714, Korea Graduate School of Management,(More)
Resource allocation between exploration of emerging technological possibilities and exploitation of known technological possibilities involves a delicate trade-off. We develop a model to represent this trade-off under the time-pressing situation where the firm s existing basis of survival is constantly challenged by competitors innovation and imitation. We(More)
Purpose: Our purpose was to investigate the expression pattern of cyclin D2 and pseudogene cyclin D2 mRNA in the human ovary with age. Methods: After extraction of the total RNA from ovarian tissues of 23 premenopausal patients, cyclin D2 and pseudogene cyclin D2 mRNAs were measured by the reverse transcription–polymerase chain reaction technique using(More)
Recently large-scale cascading failures in complex systems have garnered substantial attention. Such extreme events have been treated as an integral part of self-organized criticality (SOC). Recent empirical work has suggested that some extreme events systematically deviate from the SOC paradigm, requiring a different theoretical framework. We shed(More)