Publications by authors named "Maria Penuela"

The forests of Amazonia are among the most biodiverse plant communities on Earth. Given the immediate threats posed by climate and land-use change, an improved understanding of how this extraordinary biodiversity is spatially organized is urgently required to develop effective conservation strategies. Most Amazonian tree species are extremely rare but a few are common across the region.

View Article and Find Full Text PDF

Background: As an alternative to traditional wire localization, an inducible magnetic seed system can be used to identify and remove nonpalpable breast lesions and axillary lymph nodes intraoperatively. We report the largest single-institution experience of magnetic seed placement for operative localization to date, including feasibility and short-term outcomes.

Methods: Patients who underwent placement of a magnetic seed in the breast or lymph node were identified from July 2017 to March 2019.

View Article and Find Full Text PDF

Objective: Gliosarcoma (GSM) is a rare subtype of glioblastoma (GBM) that accounts for approximately four percent of high-grade gliomas. There is scarce epidemiological data on patients with GSM as a distinct subgroup of GBM.

Methods: A systematic literature review was performed of peer-reviewed databases using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines to evaluate the impact of race and ethnicity on survival in patients with GSM compared to patients with GBM.

View Article and Find Full Text PDF
Article Synopsis
  • Understanding how ecosystems respond to climate change is especially critical in tropical forests, which hold a significant portion of the Earth's carbon stock.
  • Research focused on above ground biomass (AGB) across various tropical forest plots in Northwestern South America revealed that water availability is a more significant factor influencing AGB than mean annual temperature or energy variables.
  • Results indicate that increased water deficits in these forests could lead to reduced biomass and negatively affect carbon storage.
View Article and Find Full Text PDF

Amazon forests are a key but poorly understood component of the global carbon cycle. If, as anticipated, they dry this century, they might accelerate climate change through carbon losses and changed surface energy balances. We used records from multiple long-term monitoring plots across Amazonia to assess forest responses to the intense 2005 drought, a possible analog of future events.

View Article and Find Full Text PDF