The principal problem in current orthopedic implants is their loosening due to poor osseointegration. Many efforts have been made to modify the surface composition and topography of titanium alloy implants to attain improved ...

Integrons are genetic elements with a site-specific recombination system which includes an integrase (IntI) capable of capturing and expressing promoterless, circular DNA molecules known as gene cassettes. Although integrons ...

Studies focused on the distribution of understory species associated with mangrove forests are very scarce. This research provides a detailed description of the understory community and their environmental requirements at ...

Many species of birds sing the same song-type that a neighbor has just sung, a behavior known as song-type matching. Song-type matching has long been considered a signal of aggressive intent, but recent experiments fail ...

Cryptococcus neoformans (C. neoformans) and Cryptococcus gattii (C. gattii) are encapsulated, pathogenic yeasts, belonging to the Basidiomycota. They infect immune-compromised and immune-competent individuals respectively. ...

The productivity of captive breeding programs can limit efforts to restore endangered species. The ability to accurately predict which captive pairs will breed successfully improves breeding productivity by allowing managers ...

The biogeography of microbial communities in tropical environment is poorly understood. Recent works in soil microbial ecology have focused on cataloging the diversity of soil bacteria, but few of them have documented how ...

Rhizoctonia solani is a widespread soilborne pathogen of common bean (Phaseolus vulgaris L.). This major pathogen is a species complex classified in 14 anastomosis groups (AG). Some AGs can cause web blight (WB), one of ...

In Puerto Rico an economic change has promoted the natural succession of secondary forests dominated by alien species such as Spathodea campanulata. These forests represent novel habitats in the Neotropics and appear to ...

The analysis of the architecture of Buxus vahlii (Buxaceae) in western Puerto Rico is presented. Two populations that differ in their environmental characteristics were studied; one is a coastal forest in the municipality ...