Brain Active Areas Associated with a Mental Arithmetic Task: An eLORETA Study.

The neural underpinnings of mental calculation, the fundamentals of arithmetic representations and processes, and the development of arithmetic abilities have been explored by researchers over the years. In the present work, we report a study that analyzes the brain-activated areas of a group of 35 healthy subjects (9 males, 26 females, mean age ± SD = 18.23 ± 2.

Report of a rare case of colon cancer complicated by anomalies of intestinal rotation and fixation: a case report.

Introduction: The Situs viscerum inversus associated with anomalies of intestinal rotation and fixation is an extremely rare condition. To the authors' knowledge, this is the first report of colon cancer associated with intestinal malrotation and mesenterium ileocolicum commune.

Case Presentation: A 34-year-old man with a 2-month history of diarrhea associated with abdominal pain and weight loss underwent abdominal ultrasonography, colonscopy with biopsies and abdominal computed tomography scan with intravenous contrast.

Analysis of the automatic detection of critical epochs from coma-EEG by dominant components and features extraction.

Recent works showed that meaningful dominant components can be extracted from the EEG of patients in coma through an algorithm based on the joint use of Principal Component Analysis (PCA) and Independent Component Analysis (ICA). A procedure for automatic critical epoch detection would support the doctor in the long time monitoring of the patients, thus we investigated the automatic quantification of the criticality of the epochs. In this paper we propose a procedure based on the extraction of dominant components and features for the quantification of the critical state of each epoch, in particular we use entropy and kurtosis.

Assembly and release of HIV-1 precursor Pr55gag virus-like particles from recombinant baculovirus-infected insect cells.

The unprocessed Gag precursor from HIV-1, when expressed in recombinant baculovirus-infected insect cells, is targeted to the plasma membrane and assembles in 100-120 nm particles budding from the cell surface. This process mimics HIV immature particle formation and is dependent on myristoylation of the N-terminal glycine, as deletion of the latter results in particle accumulation in the cytoplasm and, interestingly, in the nucleus, pointing to a potential role of this non-fatty-acid-acylated species in the viral life cycle. Inclusion of the pol gene in the construct results in efficient processing of Pr55gag and a pronounced decrease in particle formation.