Sun protection behaviour and skin cancer literacy among outdoor runners.

Outdoor runners have an increased risk of melanoma and non-melanoma skin cancer. The purpose of this study was to assess skin cancer literacy and sun exposure and protection behaviour among outdoor runners during training. A cross-sectional survey-based study was conducted. All athletes registered for four consecutive running events in Porto: the Porto Marathon (November 2014), the Fathers' Day 10-km race (March 2015), the Saint John's Day 15-km race (June 2015), and the Porto half-marathon (September 2015). Athletes were invited to answer an online survey with 23 questions on the following items: sociodemographic and constitutional factors, skin cancer literacy, and sun exposure and protection behaviour. A scoring system was devised to analyse behaviour. Multivariate analysis was performed. The survey was completed by 2,445 runners, 2,159 of whom trained outdoors. Only 23.5% had adequate sun exposure and protection behaviour. A higher proportion of women than men had adequate behaviour (33% versus 17%; P < 0.001). Athletes with a university, or higher degree were more knowledgeable about skin cancer than those with a lower level of education, however, their behaviour in relation to sun exposure and protection was the same. Based on multivariate analysis, gender, skin type, marital status, and average number of hours spent training significantly affected attitude score. Investment in more targeted campaigns, aimed particularly at high-risk groups such as outdoor athletes, is essential to modify attitudes and behaviour regarding sun exposure and protection. Outdoor sports event organisers and sport associations also need to engage.

Carbonate Buildups in the Pernambuco Basin, NE Brazil.

The Pernambuco Basin represents one of the most prominent regions for deep water oil and gas exploration off the Brazilian coast. This study aims to identify and describe the occurrence of carbonate buildups in the offshore regions of the basin. The study was based on an analysis of a set of 143 2D time-migrated seismic sections that cover the offshore region of the Pernambuco Basin. An interpretation of the seismic dataset was used to define the main seismic sequences related to the main regional pulses of deposition and to identify three main groups of carbonate buildups: 1) shelf margin reefs, 2) patch reefs, and 3) isolated carbonate buildups. The carbonate buildups formed in two main intervals during post-rift sequences of the Santonian-Maastrichtian and Paleocene-Middle Miocene, which extend the known periods of carbonate deposit formation in the basin. The formation of carbonate buildups was controlled by the tectonic evolution of the Pernambuco Plateau, which created a series of paleotopographic highs that enabled the establishment of oceanographically and climatically favorable conditions for carbonate formation and deposition. These findings are important for understanding the evolution of the basin and for future evaluations of its petroleum potential.