Results: 1938

An in vitro evaluation of various irrigation techniques for the removal of double antibiotic paste from root canal surfaces

J. appl. oral sci; 24 (6), 2016
ABSTRACT Objective The aim of this study was to investigate the effectiveness of conventional syringe irrigations, passive ultrasonic irrigation (PUI), Vibringe, CanalBrush, XP-endo Finisher, and laser-activated irrigation (LAI) systems in removing double antibiotic paste (DAP) from root canals. Mater...

Standardization of the face-hand test in a Brazilian multicultural population: prevalence of sensory extinction and implications for neurological diagnosis

Clinics; 71 (12), 2016
OBJECTIVE: The face-hand test is a simple, practical, and rapid test to detect neurological syndromes. However, it has not previously been assessed in a Brazilian sample; therefore, the objective of the present study was to standardize the face-hand test for use in the multi-cultural population of Brazil...

Serum concentration of vascular endothelial growth factor and depth of trophoblastic invasion in ampullary ectopic pregnancy

Clinics; 71 (12), 2016
OBJECTIVE: To evaluate the association between the depth of trophoblastic infiltration and serum vascular endothelial growth factorconcentration in patients with an ampullary pregnancy. METHODS: This prospective cross-sectionalstudy involved 34 patients with an ampullary ectopic pregnancy who underwent ...

Evaluation of embolization for periuterine varices involving chronic pelvic pain secondary to pelvic congestion syndrome

Clinics; 71 (12), 2016
OBJECTIVES: To evaluate the clinical response and success rate after periuterine varices embolization in patients with chronic pelvic pain secondary to pelvic congestion syndrome and to report the safety of endovascular treatment and its rate of complications. METHODS: Retrospective cohort of patients u...

Variación espacio-temporal de la ictiofauna del Parque marino Xel-Há, Caribe mexicano y su relación con parámetros fisicoquímicos

Rev. biol. trop; 64 (4), 2016
Resumen:Xel-Há es un parque ecoturístico marino donde no se permite ningún tipo de extracción de flora o fauna. Una de las principales atracciones turísticas en este parque son los peces de arrecife, no existiendo trabajos publicados sobre la comunidad íctica para este sitio. En este estudio se ana...

Tamaño poblacional y patrón de conducta de Grus canadensis (Aves: Gruidae) en dos localidades de Cuba

Rev. biol. trop; 64 (4), 2016
Resumen:La disponibilidad de información sobre abundancia de especies en el Neotrópico es insuficiente. Esto impide la realización de análisis precisos y definición de estrategias de conservación adecuadas para especies endémicas y amenazadas. A través de un censo simultáneo durante dos días co...

Large mammal community composition and density under a disturbance gradient in Northeast Costa Rica

Rev. biol. trop; 64 (4), 2016
Abstract:Large mammal communities, integral components of Neotropical ecosystems, are increasingly threatened by habitat fragmentation and degradation due to anthropogenic pressures and climate change. Lowland Neotropical palm forests harbor diverse mammal communities, including threatened and endangered...

Seedling growth and survival of five tree species in secondary forests and adjacent pastures in the montane rain forests of Southern Costa Rica

Rev. biol. trop; 64 (4), 2016
Abstract:Successful forest restoration in tropical environments is limited by the paucity of studies on the initial establishment and early survival requirements of seedlings of most native tropical tree species under disturbed conditions. Here, we evaluated the initial growth responses and the regenerat...

Shell shape variation of queen conch Strombus gigas (Mesograstropoda: Strombidae) from Southwest Caribbean

Rev. biol. trop; 64 (4), 2016
Abstract:The endangered species Strombus gigas is a marine gastropod of significant economic importance through the Greater Caribbean region. In contrast to phenotypic plasticity, the role of genetics on shell variations in S. gigas has not been addressed so far, despite its importance in evolution, mana...

Reproducción de Pomacea flagellata (Mollusca: Ampullariidae) en la laguna de Bacalar, Quintana Roo, México

Rev. biol. trop; 64 (4), 2016
Resumen:Pomacea flagellata es una especie de caracol de agua dulce nativo en el sureste de México. Sobre esta especie existen pocos estudios y en ninguno se han abordado aspectos de su reproducción. Este caracol ha sido explotado durante años en la laguna Bacalar y sus poblaciones han decrecido consid...