Cutoff lows (COLs) are infrequent events in the tropics that can cause extreme rainfall, flash flooding and landslides in arid areas, such as western South America. In this study, the life cycle of a COL in the southeastern Pacific at the beginning of April 2012 was analysed using the ERA-Interim reanalysis dataset. This paper examines: (1) the precursor flow evolution prior to the COL, its development and dissipation by applying the quasi-geostrophic and vorticity equations; and (2) the influence of the COL in the heavy precipitation events over the western Peruvian Andes. During April 2012, the highest amount of precipitation was recorded in Chosica (850 masl) with 37 mm on 5 April. Days prior to the formation of the COL, a subtropical trough deepened by the amplification of a ridge over the tropical Pacific and the incursion of cold air from medium and low levels into the trough. The ...

Objective: There are risks associated to the eruption of canines, by what is makes necessary a monitoring clinical early and a correct diagnosis. Cone-Beam computed tomography, in recent years has proven to be a reliable and accurate method to assess this type of complications. He objective of this study was determine the location and position of the canine impacted and its proximity to teeth adjacent through the use of the tomography CT cone-beam. Materials and methods: We evaluated72 CT scans Cone Beam patients with clinical diagnosis: maxillary canine impaction. The evaluation is carried out through the use of the system point 3D combi 500 S with the software Real Scan. Is made cuts sagittal, frontal and axial for the evaluation of it location (vestibular, Center alveolar or Palatine), position (third apical, half or cervical) and its proximity with the incisive side (≤ 1,5 mm = nex...

Objective: the proposal of this study was to examine the degree of root resorption in parts adjacent to impacted maxillary canines, bymeans of a cone-beam computerized tomographic evaluation, which has proven to be a reliable and accurate method to assess thistype of complications. Materials and methods: this study was an evaluation of 1265 ct, which obtained a sample of 72 ct with caninesimpacted maxillary, 36 men and 36 women, ranging from 13 to 43 years old. The variable studied was reabsorption of the adjacent part:the classification of levander and malmgren was used to assess the degree of root resorption. Results: it was observed that 49% hadgrade 0 reabsorption, followed by 19% grade 3 reabsorption. No statistically significant difference was found according to sex p = 0.47.This study found a greater number of patients younger than 18 years presenting root resorption of incisor si...

Objetivo. Conocer el nivel de relación entre los aspectos cognitivos y procedimentales en el diseño y delimitación de las líneas para la confección del rodete de oclusión y contorno en prótesis completa, en estudiantes de odontología. Materiales y métodos. La muestra estuvo conformada por 134 estudiantes, de los cuales 51 fueron del sexo masculino. Se evaluó el aspecto cognitivo mediante un examen escrito, el cual fue calificado de 0 a 20 para luego subdividirlo en cinco grupos. El mismo sistema de evaluación se aplicó sobre los trabajos de diseño y graficación realizado sobre los modelos de trabajo y placas bases. Resultados. En aprestamiento procedimental no se encontró asociación significativa con el grado de conocimiento, sin embargo, un mayor número de alumnos obtuvieron un buen grado de conocimientos y la mayoría obtuvo un buen nivel de aprestamiento procedimental...