On Magnetized Neutron Stars

In this work we review the formalism normally used in the literature about the effects of density-dependent magnetic fields on the properties of neutron and quark stars, expose some ambiguities that arise and propose a way to solve the related problem. Our approach explores more deeply the concept of pressure, yielding the so called chaotic magnetic field formalism for the stress tensor. We also use a different way of introducing a variable magnetic field, which depends on the energy density rather than on the baryonic density, which allows us to build a parameter free model.Comment: 6 Figures + Appendix. Final version to match the published on

HTRIdb: an open-access database for experimentally verified human transcriptional regulation interactions

Background: The modeling of interactions among transcription factors (TFs) and their respective target genes (TGs) into transcriptional regulatory networks is important for the complete understanding of regulation of biological processes. In the case of human TF-TG interactions, there is no database at present that explicitly provides such information even though many databases containing human TF-TG interaction data have been available. In an effort to provide researchers with a repository of TF-TG interactions from which such interactions can be directly extracted, we present here the Human Transcriptional Regulation Interactions database (HTRIdb).
Description: The HTRIdb is an open-access database of experimentally validated interactions among human TFs and their TGs. HTRIdb can be searched via a user-friendly web interface and the retrieved TF-TG interactions data and the associated protein-protein interactions can be downloaded or interactively visualized as a network using the Cytoscape Web software. Moreover, users can improve the database quality by uploading their own interactions and indicating inconsistencies in the data. So far, HTRIdb has been populated with 283 TFs that regulate 11886 genes, totaling 18160 TF-TG interactions. HTRIdb is freely available at http://www.lbbc.ibb.unesp.br/htri.
Conclusions: HTRIdb is a powerful user-friendly tool from which human experimentally validated TF-TG interactions can be easily extracted and used to construct transcriptional regulation interaction networks enabling researchers to decipher the regulation of biological processes

Labahitha nom.n., çàìåùàþùåå íàçâàíèå äëÿ Mystes Bristowe, 1938, ñ ïåðåîïèñàíèåì òèïîâîãî âèäà (Aranei: Filistatidae)

The monotypic genus Mystes Bristowe, 1938, and its type species, M. oonopiformis Bristowe, 1938, are redescribed based on the neotype male (designated here) and several females. The male is described for the first time and the female endogyne is illustrated for the first time. Morphological analysis reveals that the genus belongs to the Prithinae and is close to the Australian genera Wandella Gray, 1994 and Yardiella Gray, 1994. As the name Mystes is preoccupied by Mystes Champion, 1895 (Coleoptera: Melandryidae), we propose Labahitha nom.n. as a replacement name.Монотипичный род Mystes Bristowe, 1938, и его типовой вид M. oonopiformis Bristowe, 1938 переописываются по обозначенному здесь сам- цу-неотипу и нескольким самкам. Впервые для вида описываются самец и приводятся изображения эн- догины самки. Морфологические признаки этого рода указывают на то, что он принадлежит к под- сем. Prithinae и может быть близкородственным по отношению к Wandella Gray, 1994, и Yardiella Gray, 1994. Так как название Mystes преоккупировано ро- дом Mystes Champion, 1895 (Coleoptera: Melandryidae), мы предлагаем Labahitha nom. n. как замеща- ющее название.Fil: Zonstenin, Sergei L.. Steinhardt Museum Of Natural History, Tel-aviv Universi; IsraelFil: Marusik, Yuri M.. Institute For Biological Problems Of The North; RusiaFil: Fiorini de Magalhaes, Ivan Luiz. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales ; Argentin