PURPOSE: To compare the effect of incomplete caries removal (ICR) and indirect pulp capping (IPC) with calcium hydroxide (CH) or an inert material (wax) on color, consistency and contamination of the remaining dentin of primary molars. METHODS: This double-blind, parallel-design, randomized controlled trial included 30 children presenting one primary molar with deep caries lesion. Children were randomly assigned after ICR to receive IPC with CH or wax. All teeth were then restored with resin composite. Baseline dentin color and consistency were evaluated after ICR, and dentin samples were collected for contamination analyses using scanning electron microscopy. After 3 months, restorations were removed and the three parameters were re-evaluated. In both groups, dentin became significantly darker after 3 months. RESULTS: No cases of yellow dentin were observed after 3 months with CH compared to 33.3% of the wax cases (P < 0.05). A statistically significant difference over time was observed only for CH regarding consistency. CH stimulated a dentin hardening process in a statistically higher number of cases than wax (86.7% vs. 33.3%; P = 0.008). Contamination changed significantly over time in CH and wax without significant difference between groups. It was concluded that CH and wax arrested the carious process of the remaining carious dentin after indirect pulp capping, but CH showed superior dentin color and consistency after 3 months.

The solar wind electrons observed at 1 AU are characterized by velocity distribution functions (VDF) that deviate from the Maxwellian form in a high energy regime. Such a feature is often modeled by a kappa distribution. In the present paper a self-consistent theory of quiet-time solar wind electrons that contain a power-law tail component, f ∝ v-α is discussed. These electrons are assumed to be in dynamic equilibrium with enhanced electrostatic fluctuations with peak frequency near the plasma frequency (i.e., the Langmuir turbulence). In order to verify the theoretical prediction, the solar wind electrons in the high-energy range known as the super-halo distribution detected by WIND and STEREO spacecraft are compared against the theoretical model where it was found that the theoretical power-law index is intermittent with regard to the observed range of indices, thus indicating that the turbulent equilibrium model of suprathermal solar wind electrons may be valid.

AIM: To compare the incidence of gingival fissures after the use of soft and medium-hard toothbrushes. MATERIAL & METHODS: Overall, 35 participants (14-20 years old), with periodontal attachment loss (PAL)

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This work presents the HyperCAL3D, an application to support the teaching and learning process of Descriptive Geometry through the study of solid objects. The methodology used for its implementation and the main features of the application are described. A selection of concepts was carried out to determine the functional structure of the software should have. From this, the main features were modeled through processes of vector geometry equivalent to that used in Descriptive Geometry. The main features introduced include: the projection process, the representation of hidden lines in three-dimensional model and the projections, successive auxiliary views in real time, and the intersection process. All these tools are implemented in an application that aids the learning process of the students and the teaching procedures of professors.

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Este artigo pretende retomar a interpretação que pode ser chamada de tradicional das três condições do ato propriamente virtuoso expostas em  EN II 4, i.e., o conhecimento, escolher deliberadamente o ato por ele mesmo e seguir-se de uma disposição firme e não hesitante. A atenção da análise será voltada à primeira e à terceira condição. Buscar-se-á mostrar que a condição do conhecimento pode ser compreendida como conhecimento das circunstâncias, do ato ele mesmo como virtuoso e das técnicas ou ofícios que podem ser por ele requeridos. Buscar-se-á igualmente justificar a introdução do termo ‘disposição’ na tradução apresentada, já que o termo grego ‘hexis’ não consta na passagem analisada. Um apontamento será feito, por fim, no sentido de oferecer uma justificativa mais ampla para a interpretação aqui defendida na medida em que a localiza como um posicionamento contrário à concepção intelectualista socrática.