It is a fundamental property of conjugated systems to accept a proton or Lewis acid and form a stable carbonium ion. Polyenes that are protonated or add Lewis acids in this manner undergo substantial red shifts. For example, vitamin A(1) acetate absorbs at 350 mmicro in neutral and at 650 mmicro in acidic benzene solution. The fundamental basis for absorption of polyene systems was described in...

We study corporate income tax competition when firms operating in multiple jurisdictions can shift income using financial planning strategies. Several such strategies, particularly intra-corporate lending, appear to be actively pursued by companies to reduce subnational corporate taxes in Canada. A simple theoretical model shows how interjurisdictional tax planning can give rise to asymmetries ...

(1|1) [1090]. (s, t) [2494]. 1 [299, 421]. 2 [299, 421, 478, 537, 806, 1094, 1134, 1271, 1300, 1373, 1455, 1730, 1797, 1826, 1855, 2023, 2029, 2344]. 3 [251, 299, 314, 691, 768, 1054, 1180, 1197, 1281, 1490, 1601, 1856, 1935, 1979, 2009, 2029, 2344, 2416, 2429, 2435, 2452, 2476, 2517, 2571]. 4 [1639, 1751, 2132]. 5 [299]. 9 [154]. ∗ [1518]. 3 [1482]. RP [669]. A∗ [922]. β [1978]. C [2040]. d [5...

BACKGROUND AND OBJECTIVES To evaluate the feasibility of a minimally invasive approach for hysterectomy for benign disease at a university teaching hospital. METHODS Five hundred thirty-seven consecutive patients underwent hysterectomy for benign disease at Penn State Milton S. Hershey Medical Center in 2010. No cases were excluded. Minimally invasive approaches included total vaginal hystere...

Relation extraction typically involves the extraction of relations between two or more entities occurring within a single or multiple sentences. In this study, we investigated the significance of extracting information from multiple sentences specifically in the context of drug-disease relation discovery. We used multiple resources such as Semantic Medline, a literature based resource, and Medl...

The tumour marker CA125 is an important indicator of the clinical progress of women with carcinoma of the ovary. We have investigated the interval from the nadir CA125 value to progression defined by rising CA125 (time to biochemical progression, TBP), and overall survival of patients treated with chemotherapy for this disease in relation to the nadir CA125 value in patients in whom this was <3...

Self-categorization theory posits that the perception of group members is flexible and determined by the comparative social context as well as by group membership. Subjects read about either four ingroup or outgroup target persons in the context of four additional stimulus persons who were members of either the same group as the target persons (intragroup context) or the other group (intergroup...

OBJECTIVES In thymomas, the roles of Masaoka-Koga stage, histology and the presence of myasthenia gravis (MG) have been considered fundamental for patient management and outcomes. In this study, we retrospectively evaluated several clinical variables, with the aim of outlining their relationships and clinical/prognostic significance in resected thymoma patients. METHODS A retrospective search...