Publications by authors named "J L Perez Velazquez"

Background: Timely palliative and hospice care, along with advanced care planning, can reduce avoidable high-intensity care and improve quality of life at the end of life (EoL).

Objective: We examined patterns of care at EoL and evaluated predictors of high-intensity care at EoL among adults aged 18-64 with cancer.

Methods: Using data from the Puerto Rico Central Cancer Registry-Health Insurance Linkage Database, we examined 1359 patients diagnosed with cancer in 2010-2019, who died of cancer between 2017 and 2019 at 64 years and younger, and who were enrolled in Medicaid or private health insurance in last 30 days before death.

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Article Synopsis
  • The study introduces a new photochemical reactor paired with a mass spectrometer designed to measure hydrogen generation from photochemical water splitting.
  • Sphalerite-type Zn Cd S catalysts were created using an eco-friendly method that avoids harmful solvents and high temperatures, ensuring safer production.
  • The results demonstrated that the new reactor effectively measured hydrogen production rates, achieving a notable 29.5 mmol of hydrogen per gram after 100 minutes of visible light exposure, surpassing previous benchmarks for other materials.
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Importance: Infant growth predicts long-term obesity and cardiovascular disease. Previous interventions designed to prevent obesity in the first 2 years of life have been largely unsuccessful. Obesity prevalence is high among traditional racial and ethnic minority groups.

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The pollution of wastewater with pharmaceuticals and endocrine-disrupting chemicals (EDCs) in populated areas poses a growing threat to humans and ecosystems. To address this serious problem, various one-dimensional (1D) hierarchical ZnO-based nanostructures inspired by Anelosimus eximius cobwebs were developed and successfully grown on a glass substrate through simple hydrothermal synthesis. The nanorods (nr) obtained during primary growth were chemically etched with KOH (ZnO-KOH), followed by the secondary growth of nano cobweb-like (ncw) structures using polyethyleneimine (ZnO).

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  • People living with HIV (PLWH) often experience fatigue despite having controlled viral loads, and obstructive sleep apnea (OSA) is a common condition in this group that may affect fatigue levels.
  • In a study involving 120 participants, it was found that 75% of them had OSA, but there was no significant difference in fatigue levels between those with and without OSA; however, those with OSA reported increased daytime sleepiness.
  • The research concluded that OSA prevalence is high among PLWH, with variability in daily sleep duration being linked to increased fatigue, suggesting further investigation is needed on how OSA treatment or improved sleep consistency could alleviate fatigue symptoms.
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