Previous studies of the luminescence system of Siphamia versicolor (Perciformes: Apogonidae) identified a ventral light organ, reflector, lens, duct, and a ventral diffuser extending from the throat to the caudal peduncle. The control and function of luminescence in this and other species of Siphamia, however, have not been defined. Morphological examination of fresh and preserved specimens ide...

This article introduces an evolutionary approach to the ontogeny of grammar and establishes a relation between sexual behaviors mental linguistic mechanisms in phylogeny. Initially, it presents summary ideas relating language evolution nature adaptations, holistically discuss them terms selection. Next, generative, hierarchical, gendered, combinatorial recursive operations are illustrated, expl...

Heightened sensitivity to emotional faces may contribute to less risk taking and susceptibility to peer influence in adolescents. A longitudinal study from Pfeifer et al. reveals a developmental increase in ventral striatum activity in early adolescence in response to emotional faces, which correlates with improved measures of resistance to peer influence and risky behavior.

bronchogenic cyst is a result of abnormal development   of the ventral foregut presents as a discrete mass. most commonly, it is appeared in the middle mediastinum and rarely is seen in adults. we report a 35-year-old woman who was asymptomatic and incidentally was found with a mass in chest radiograph.

UNLABELLED Ventral furrow formation in Drosophila is an outstanding model system to study the mechanisms involved in large-scale tissue rearrangements. Ventral cells accumulate myosin at their apical sides and, while being tightly coupled to each other via apical adherens junctions, execute actomyosin contractions that lead to reduction of their apical cell surface. Thereby, a band of constrict...

To determine the origin of the ventral pancreas, a fate map of the ventral pancreas was constructed using DiI crystal or CM-DiI to mark regions of the early chick endoderm: this allowed correlations to be established between specific endoderm sites and the positions of their descendants. First, the region lateral to the 7- to 9-somite level, which has been reported to contribute to the ventral ...