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Previous event-related brain potential (ERP) studies have identified a medial frontal negativity (MFN) in response to negative feedback or monetary losses. In contrast, no EEG correlates have been identified related to the processing of monetary gains or positive feedback. This result is puzzling considering the large number of brain regions involved in the(More)
We have developed a dynamic atomic force microscopy (AFM) method based on the simultaneous excitation of the first two flexural modes of the cantilever. The instrument, called a bimodal atomic force microscope, allows us to resolve the structural components of antibodies in both monomer and pentameric forms. The instrument operates in both high and low(More)
BACKGROUND Omeprazole is a non-competitive inhibitor of the parietal cell enzyme H+-K--adenosine triphosphatase. To date, two cases of angioedema and urticaria and two cases of anaphylaxis from omeprazole have been published. OBJECTIVE To report a new patient with omeprazole-induced anaphylaxis demonstrated by skin tests and increased serum tryptase(More)
BACKGROUND port-site metastases (PSM) have been reported following oncological laparoscopic surgery. However, their frequency after laparoscopic examination in gastric cancer has not been well established. MATERIAL AND METHODS prospective follow-up of 41 patients having had a staging laparoscopy and a follow-up longer than 12 months. Mean age was 65 years(More)
OBJECTIVE To develop a noninvasive method for treatment of uterine fibroid tumors using high-intensity focused ultrasound. Optimal high-intensity focused ultrasound treatment would be dependent on quantitative information about ultrasonic tissue characteristics. METHODS Ultrasonic attenuation and the sound speed of fresh human fibroid tumors and(More)
A force microscope operated with an amplitude modulation feedback (usually known as tapping-mode atomic force microscope) has two tip-sample interaction regimes, attractive and repulsive. We have studied the performance of those regimes to imaging single antibody molecules. The attractive interaction regime allows determination of the basic morphologies of(More)
Solar gravity modes have been actively sought because they directly probe the solar core (below 0.2 solar radius), but they have not been conclusively detected in the Sun because of their small surface amplitudes. Using data from the Global Oscillation at Low Frequency instrument, we detected a periodic structure in agreement with the period separation(More)
We found a total of 987 prey in the 500 scats of feral catsFelis silvestris catus Linnaeus, 1758 analyzed in the present study. Introduced mammals (rabbits, rats and mice) constituted the most important prey both in percentage and biomass. Reptiles were the second most important prey, being more frequent than birds and invertebrates. Mammals were the most(More)
Feral cats Felis catus Linnaeus, 1758 have contributed to the extinction of numerous native species on islands, which are clearly sources of global biodiversity. We studied the diet of this introduced predator in the Madeira and Cape Verde archipelagos, which harbour important colonies of endangered seabirds in the high mountain habitats, and compared the(More)
INTRODUCTION The aim of our study was to review our experience and to determine a predictive model of factors for unanticipated admissions after ambulatory laparoscopic cholecystectomy (LC). MATERIALS AND METHODS Between January 1999 and June 2003, 410 consecutive LCs were performed as outpatient procedures. We performed univariate analysis and logistic(More)