The influence of the Natural Environment is a factor that affects all phases of launch vehicle/aircraft design, development and operation. Factors such as wind, turbulence, temperature extremes, atmospheric density, ionizing radiation, meteors, space debris, plasma and events related to solar activity, among other environmental phenomena, represent constraints and specific requirements that must be taken into account from the beginning of the project development program for a launch vehicle, so that it presents maximum efficiency in fulfilling its mission. The application of environmental design criteria aims to minimize risks, reduce costs and obtain the best possible vehicle performance. … Read More →
How can Brazilian scholars say something that would be of interest globally and have an impact on the work done in the global North?
Brazilian researchers have been encouraged to internationalize their research, but how should the researcher from the global South deal with context in the international dialogue to avoid being perceived as the exotic Other? In its third issue, BAR brings an interview related to the challenge of publishing research from a global perspective. … Read More →
From “white slavery” to freedom of circulation: the transformations of the emigration concept in Portugal
With a direct approach, the article introduces us the debate on the emigration of Portuguese subjects to Brazil that existed in nineteenth century Portugal. The author challenges traditional approaches on the topic, contesting the idea that the interests of the Portuguese State were directly aligned with those of the agrarian elites. … Read More →
How to preserve the health of farm tractor operators?
The vibration produced by tractor operation has negative effects on the health of the operators of these agricultural machines. To evaluate the transmissibility of vibrations, a research presents an innovative method that allows to observe the influence of tractor-coupled agricultural equipment on the operator’s whole body vibrations. … Read More →
A traffic educational program for children can help prevent accidents?
A study evaluated the knowledge, attitudes, and preventive practices regarding traffic accidents among children from two public schools in Northeastern Brazil, before and after an educational program created in partnership with a school in Coimbra, Portugal. The educative intervention increased the level of knowledge and maintained the attitudes and preventive practices related to traffic accidents stable among 3rd and 5th grade students. … Read More →
Excess body weight and adolescence: what factors are involved?
What are the factors that contribute for excess body weight in adolescents? This study included 635 adolescents from public state schools. The investigation was carried out by researchers from the Universidade Estadual de Monte Claros. Results were quite uncommon considering those often found in studies about excess body weight in adolescents. … Read More →
Can image processing assist in determining seed vigor?
Research examines the feasibility of digital image processing in determining seed vigor through the method of analyzing plant biophysical characteristics. The results show that the determination of leaf length and seedling area obtained by digital image processing is effective to evaluate the vigor of rice seeds. … Read More →
How can the bioactive physalis compound help in cancer treatment?
Study tested the toxicity of Goldenberry extract by in vivo and in vitro assays. The compound showed toxicity in mammary tumor cells. The work serves as a starting point for further research in the treatment of cancer involving natural compounds, as the formulation associated with Physalis extract showed toxicity against this cell type. … Read More →
Does facial skeletal asymmetries have the same components in Class I, II, and III individuals?
The term facial asymmetry is used when there is an imbalance regarding the homologous parts of the dentofacial complex, affecting the proportion between the structures. This study highlights how symmetry significantly influences facial appearance and analyzes different patient groups showing different intensities of asymmetry. … Read More →
Malocclusion, bullying and oral health-related quality of life: are they associated?
This study investigated the presence of malocclusion and bullying and the effect of these factors in oral health-related quality of life (OHRQoL) of Brazilian adolescents. As result, bullying and previous orthodontic treatment had a statistically significant association with OHRQoL, demonstrating the psychosocial importance of orthodontic treatment. … Read More →
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