Organisms across species use the strategy of generating structures in their environment to lower cognitive complexity. Examples include pheromones, markers, color codes, etc. We provide a model of how such structures originate, and present a simulation where organisms with only reactive behavior learn, within their lifetime, to add such structures to their world to lower cognitive load. This im...

Bondarzewia is a conspicuous and widely distributed mushroom genus, but little is known about its origin and biogeography. Here, we investigated the systematics and biogeography of Bondarzewia species using multi-locus phylogenetic analysis. Four genetic markers, including the internal transcribed spacer (ITS), large nuclear ribosomal RNA subunit (nLSU), elongation factor 1-α (tef1) and mitocho...

Among the molecular markers commonly used for mosquito taxonomy, the internal transcribed spacer 2 (ITS2) of the ribosomal DNA is useful for distinguishing among closely-related species. Here we review 178 GenBank accession numbers matching ITS2 sequences of Latin American anophelines. Among those, we found 105 unique sequences corresponding to 35 species. Overall the ITS2 sequences distinguish...

S100B in cerebrospinal fluid (CSF-S100B) was measured in calves with 20 neurologic and 21 non-neurologic diseases to clarify its utility as a biomarker for neurologic diseases. The median CSF-S100B value in the neurologic disease group (43.0 ng/ml) was significantly higher than that in the non-neurologic disease group (10.2 ng/ml). As CSF-S100B levels in calves with neurologic diseases widely d...

Copyright © 2013 The Korean Association of Internal Medicine This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/ by-nc/3.0/) which permits unrestricted noncommercial use, distribution, and reproduction in any medium, provided the original work is properly cited. pISSN 1226-3303 eISSN 2005-664...

Psychotic disorders are characterized by profoundly blunted neural responses to errors, as indicated by reductions in two event-related potential (ERP) components: the error-related negativity (ERN) and error positivity (Pe). The potential utility of the ERN and Pe as biomarkers for psychotic disorders is currently limited, however, by an incomplete understanding of their psychometric propertie...

N-Acetyl-L-cysteine (NAC) has been shown to exert cancer-protective mechanisms and effects in experimental models. We report here the results of a randomized, double-blind, placebo-controlled, Phase II chemoprevention trial with NAC in healthy smoking volunteers. The subjects were supplemented daily with 2 x 600 mg of oral tablets of NAC (n = 20) or placebo (n = 21) for a period of 6 months, an...

Moyamoya disease (MMD) is an arteriopathy of the intracranial circulation predominantly affecting the branches of the internal carotid arteries. Heterogeneity in presentation, progression and response to therapy has prompted intense study to improve the diagnosis and prognosis of this disease. Recent progress in the development of moyamoya-related biomarkers has stimulated marked interest in th...

Abstracts are well-accepted as the clarity and fidelity of language in any article assists the readership to get the central points of the research in a brief l but effective manner. Meanwhile, as a significant feature of any piece of discourse, meta-discourse markers can effectively render article abstract texts more reader-friendly and coherent. The present study aims at investigating the ext...

Abstracts are well-accepted as the clarity and fidelity of language in any article assists the readership to get the central points of the research in a brief l but effective manner. Meanwhile, as a significant feature of any piece of discourse, meta-discourse markers can effectively render article abstract texts more reader-friendly and coherent. The present study aims at investigating the ext...