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View related articlesView Crossmark data emphasised [1]. Research supports the need of studying protective and risk factors for victimisation in light of the ecological model, once it highlights the connection between individual characteristics, family, school and community [2]. Two main objectives will be analysed: (a) the risk factors associated with four global types of victimisation (overt, reactive overt, relational and reactive relational) and seven subtypes of victimisation behaviours that the adolescent's might experience (e.g. social manipulation, social exclusion) using the ecological model; (b) discuss how the study of risk factors contributes to the strategies to be outlined in the context of an intervention program. Materials and methods: 584 high school adolescents participated in this quasi-experimental study, aged between 12 and 19 years (M ¼ 15.20; DP ¼ 1.90). The participants completed: School aggression and violence: Victimisation symptoms and behaviours Questionnaire [3], Perception of Social-Family Support and Perception of Peer Support Scales [4], Parental Support Questionnaire -Short Form [5], and School Climate Questionnaire [6]. Ethics committee approved the investigation and informed consent was obtained from parents. The questionnaires (anonymous and confidential) were completed in a classroom context. Using Hierarchical Linear Regression, two models were built, in which the qualitative variables (e.g. age, gender) were first inserted, followed by the factors peer support, family and school climate. Results: The global types of victimisation were better explained by reactive relational victimisation (18.60% of total variance) while the specific types of victimisation by the harassment model (19.30% of the total variance), both by the factor social support from family and friends (respectively 13.80% and 10.70% of the variance). In short, boys showed a higher risk of overt victimisation, while girls reported more relational victimisation. Perceiving a poor support from family and friends places the adolescents at a higher risk of peer victimisation by harassment, but also by exclusion/social isolation, coercion, intimidation, threats and aggressiveness. The higher the perception of a school climate characterised by violence, the higher the risk of peer victimisation, specifically by harassment. No cases of victimisation per bullying were identified. Discussion and conclusions: The risk factors found were indicative that these adolescents would benefit from a universal intervention model. These are developed in the classroom context for all students and do not include a selection of subjects with a specific need for intervention. Strategies should be oriented towards socio-emotional interventions, which include emotional management and interpersonal conflicts. These have shown good results in reducing violence in young people, including bullying, but also in reducing disruptive behaviours in the classroom. Greater knowledge of teachers and administrative staff, but also parents, and using...

Geochemistry of major and trace elements has been used as an important tool for the study of provenance and tectonic and climatic evolution of sedimentary basins. The São Carlos Formation is an Upper Cretaceous unit that lies on the eastern border of the Bauru Basin. Despite the paleontological and paleodepositional studies performed in this unit in the last years, little is known about the correspondence between tectonic and climatic conditions acting during the first stages of sedimentation. The hypothesis of this paper is to evaluate São Carlos and Araçatuba formations and understand the evolution of the eastern border of the basin. Thus, were conducted geochemical studies using X-ray fluorescence on sandstones, siltstones, and shales from the São Carlos Formation. According to the chemical weathering index, which presented values ranging from 57.12 to 71.58%, the oxides of major elements indicate that moderate weathering processes affected the source area, possibly associated with the arid-semiarid climate. Alkaline rocks, granites, gneisses, and metasediments were the main lithotypes of the source area. Ternary diagrams show that the tectonic environment was equivalent to the passive continental margin, coinciding with the Serra do Mar and, secondarily, Alto Paranaíba Uplift regions. Based on major and trace elements, their ratios, and published data on the basin, was elaborated a paleogeographic model of the eastern border of the Bauru Basin, concluding that the source area of the sediments was constituted by intermediate and felsic rocks, sometimes recycled by sedimentary processes.

The project aims to spectrally characterize samples of tar-sands of the Paraná Basin through VNIR-SWIR reflectance spectroscopy, in order to determine spectral patterns that can be adapted and used in prospecting for hydrocarbon accumulations in onshore sequences. One of the main products generated in the project was a spectral library comprising the compositional variations of these sandstones.