A new species of Villiersicometes Santos-Silva, 2003 (Coleoptera, Cerambycidae, Disteniinae)

Villiersicometes absalom sp. nov., a new species of Villiersicometes Santos-Silva, 2003 (Coleoptera, Cerambycidae, Disteniinae) is described from French Guiana. The species is illustrated and a key to the species of the genus is provided

Morbilidade Neonatal e Cesariana Electiva em Recém-Nascidos de Termo

INTRODUCTION: International guidelines suggest that non-urgent planned deliveries be scheduled at or after 39 weeks. Despite this recommendation elective cesarean often occurs before 39 weeks. Some research has demonstrated that elective cesarean before 39 weeks poses a greater risk to the infants than at or after 39 weeks. OBJECTIVE: To evaluate neonatal morbidity in term newborns born by elective cesarean section. MATERIAL AND METHODS: Retrospective study of all term elective cesarean sections (scheduled and without labor) performed in level III maternity, in the last 11 years (2003 - 2013). High risk pregnancies were excluded: twins, premature rupture of membranes, preeclampsia, poorly controlled diabetes mellitus, Rh isoimmunization and congenital malformations. Two groups of newborns with gestational age less than 39 weeks and equal or greater than 39 weeks gestational age were compared. RESULTS: In our sample, 45% of elective caesarean sections were performed before 39 weeks. Infants born before 39 weeks were more frequently admitted in neonatal intensive care, odds ratio 2.4 [1.4 - 4.1] p = 0.001, had more respiratory morbidity, odds ratio 2.4 [1.6 - 3.8] p < 0.001, more hyperbilirubinaemia odds ratio 2.3 [1.5 - 3.7] p < 0.001, more hypoglycaemia and/or feeding difficulties odds ratio 1.6 [1.2 - 2.4] p = 0.006, and longer admissions (more than five days), odds ratio 2.0 [1.4 - 3] p < 0.001. DISCUSSION: As in other studies 'early term' had higher respiratory and metabolic morbidity and consequently had a longer hospital stay. CONCLUSION: These findings support recommendations to delay elective cesarean delay until 39 weeks of gestation.info:eu-repo/semantics/publishedVersio

Wigner-Moyal description of free variable mass Klein-Gordon fields

A system of coupled kinetic transport equations for the Wigner distributions of a free variable mass Klein-Gordon field is derived. This set of equations is formally equivalent to the full wave equation for electromagnetic waves in nonlinear dispersive media, thus allowing for the description of broadband radiation-matter interactions and the associated instabilities. The standard results for the classical wave action are recovered in the short wavelength limit of the generalized Wigner-Moyal formalism for the wave equation.Comment: 9 pages, accepted for publication in Journal of Mathematical Physic

Straight spinning cosmic strings in Brans-Dicke gravity

It is presented an exact solution of straight spinning cosmic strings in Brans-Dicke theory of gravitation. The possibility of the existence of closed timelike curves around these cosmic strings is analyzed. Furthermore, the stability about the formation of the topological defect discussed here is checked. It is shown the existence of a suitable choice for the integration constants in which closed timelike curves are not allowed. We also verify if it is possible that the obtained spacetime can be the source that describes the observed rotational curves in some galaxies.Comment: 13 pages, 1 figur