Publications by authors named "C J M Leiva"

Symbioses are major drivers of organismal diversification and phenotypic innovation. However, how long-term symbioses shape whole genome evolution in metazoans is still underexplored. Here, we use a giant clam (Tridacna maxima) genome to demonstrate how symbiosis has left complex signatures in an animal's genome.

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Article Synopsis
  • Long-term enlargement of the aortic arch after reconstruction in patients with hypoplastic left heart syndrome (HLHS) was studied using measurements from 50 patients who underwent Fontan completion.* -
  • Over time, the dimensions of the aortic arch increased significantly after reconstruction, with peak enlargement typically occurring around 7 to 12 months post-surgery, followed by a gradual decline in growth into adolescence.* -
  • Both Norwood and hybrid surgical strategies resulted in similar patterns of aortic arch enlargement, suggesting the need to investigate surgical factors that could optimize growth outcomes.*
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The use of waste to capture CO has been on the rise, to reduce costs and to improve the environmental footprint. Here, a flue gas desulfurization (FGD) gypsum waste is proposed, which allows us to obtain a CaCO-based solid, which should be recycled. The CO capture stage has primarily been carried out via the direct carbonation method or at high temperature.

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A Circular Waste Management alternative is considered in this paper in which a complete ash valorization process is proposed for an Integrated Gasification with Combined Cycle fly ash, trying to extract maximum value from this waste before it is discarded. In the paper, germanium, a scarce resource vital in our modern society, is first extracted from fly ash using water, with an extraction yield of 85%, and subsequently, the leached fly ash is used in the manufacture of fire-resistant boards containing 60% ash, thereby avoiding its disposal in a landfill. The potential environmental impact caused by the two stages of the process was analyzed, and the final effluent was considered to achieve a zero-discharge objective.

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The COVID-19 pandemic has increased stress levels in the population due to radical lifestyle changes caused by containment measures. Studies suggest that high levels of stress may be related to the development of irritable bowel syndrome (IBS). This study aims to explain how quarantine habits and lifestyles acted as risk factors for the frequency of this syndrome during the COVID-19 pandemic.

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