Publications by authors named "G De Lucia"
Within the established framework of structure formation, galaxies start as systems of low stellar mass and gradually grow into far more massive galaxies. The existence of massive galaxies in the first billion years of the Universe, as suggested by recent observations, seems to challenge this model, as such galaxies would require highly efficient conversion of baryons into stars. An even greater challenge in this epoch is the existence of massive galaxies that have already ceased forming stars.
View Article and Find Full Text PDFHodgkin lymphoma (HL) is a common malignancy among women of reproductive age. Some pregnancies occur during oncological treatments or diagnostic follow-ups, often involving contraindicated procedures. HL is fluorodeoxyglucose-avid; therefore, its staging is generally performed with F-FDG PET/CT, a diagnostic method contraindicated during pregnancy.
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- Ependymomas are a type of brain tumor in children, making up 6-10% of such cases, and this study looks at the effectiveness of proton therapy for treatment.
- A systematic review and meta-analysis were conducted, involving 908 patients from ten studies, focusing on survival rates and complications from the treatment.
- The results indicate that while proton radiotherapy shows promising safety and efficacy with high overall survival rates, caution is advised due to variability in some adverse event outcomes indicated by wide confidence intervals.
Article Synopsis
- The traditional orbital monsoon hypothesis explains rainfall variations in monsoonal regions primarily through local summer insolation over long time scales, notably seen in Asian and South American records.
- However, some tropical areas show rainfall patterns that don't align with this hypothesis, prompting the exploration of other influencing factors.
- The study presents a 140,000-year Central American rainfall record from stalagmites, suggesting that the Atlantic Ocean's thermal state and the meridional overturning circulation (AMOC) are key drivers of monsoon changes, rather than just local insolation.