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Jovanovic and Nyarko (1996) showed that when agents learn-by-doing and are myopic, less advanced agents may adopt new technologies while more advanced ¯rms stick with the old technology since the new technology takes time to learn. In this case, the less advanced agents might eventually overtake (or \leapfrog") the advanced agents. We show that this kind of(More)
OBJECTIVE To assess the role of fertility preservation in the treatment of patients with early epithelial ovarian cancer (EOC). METHODS We retrospectively analyzed the medical records of 21 patients with early EOC from January 1995 to December 2006. All eligible patients with a strong desire to preserve fertility were younger than 35 years and underwent(More)
BACKGROUND This article reports our early experience with the use of lidocaine patches for pain control in the immediate postoperative period after laparoscopic gynecologic surgery. SUBJECTS AND METHODS A prospective, double-blind, placebo-controlled clinical trial was conducted on 40 patients undergoing a gynecologic laparoscopy who were randomized to(More)
OBJECTIVE To evaluate the clinicopathologic characteristics and prognostic factors of ovarian granulosa cell tumors. METHODS Medical records of 113 patients presenting between January 1995 and December 2007 were retrospectively reviewed. RESULTS One-hundred two patients had adult type disease, with a mean age of 46.2 years (range, 18 to 83 years) and a(More)
BACKGROUND Lymphovascular space invasion (LVSI) has been evaluated as a predictor for nodal metastasis or poor survival in endometrial adenocarcinoma. AIMS To evaluate whether LVSI is a prognostic factor for lymph node metastasis and relapse of disease in endometrial adenocarcinoma. MATERIALS & METHODS We retrospectively analysed the medical records of(More)
The purpose of this study was to evaluate the signal intensity (SI) change of the labyrinth in patients with vestibular schwannoma on isotropic 3D fluid-attenuated inversion recovery (FLAIR) imaging at 3 T. Thirty-four patients with surgically confirmed or radiologically diagnosed vestibular schwannoma were included in this study. Retrospectively, we(More)
PURPOSE Pilomyxoid astrocytoma (PMA) is a recently described astrocytic tumor that has been previously diagnosed as pilocytic astrocytoma (PA). The purpose of this study was to describe the imaging features of PMAs in comparison with PAs. MATERIALS AND METHODS We retrospectively reviewed CT/MR images and medical records of 10 patients with PMA and 38(More)
OBJECTIVE To investigate risks of torsion and malignancy by adnexal mass size during pregnancy. DESIGN Retrospective review of medical records. SETTING General university hospital and healthcare center. POPULATION Four hundred and seventy women who underwent surgery for adnexal masses during pregnancy between 2002 and 2009. MAIN OUTCOME MEASURES(More)
In many cases the optimal open-loop policy to influence agents who solve dynamic problems is time-inconsistent. We show how to construct a time-consistent open-loop policy rule. We also consider an additional restriction under which the time-consistent open-loop policy is stationary. We use examples to illustrate the properties of these tax rules.