Publications by authors named "F A de la Pena"

Background: Heterogeneity of treatment effects (HTEs) can occur because of either differential treatment compliance or differential treatment effectiveness. This distinction is important, as it has action implications, but it is unclear how to distinguish these two possibilities statistically in precision treatment analysis given that compliance is not observed until after randomization. We review available statistical methods and illustrate a recommended method in secondary analysis in a trial focused on HTE.

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Little is known about the epidemiology of leptospirosis in the Dominican Republic, the second most populous country in the Caribbean. We report on findings from a multi-stage household survey across two regions in the country that reveals a previously under-estimated burden of human Leptospira infection. Our findings, based on the reference-standard microscopic agglutination test, indicate a complex picture of serogroup diversity, spatial heterogeneity in infection and risk, and a marked discrepancy between reported cases and serologically estimated infections.

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Objective: To verify evidence of validity of the board game "An antihypertensive move" produced to mediate teaching practices with students on health courses about diuretic and antihypertensive medications.

Method: this is a methodological and development study in compliance with the SQUIRE-EDU guidelines. 20 experts participated.

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The 2014 chikungunya outbreak in the Dominican Republic resulted in intense local transmission, with high postoutbreak seroprevalence. The resulting population immunity will likely minimize risk for another large outbreak through 2035, but changes in population behavior or environmental conditions or emergence of different virus strains could lead to increased transmission.

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Article Synopsis
  • The study examines the effects of anisotropy on a system of three qubits using the antiferromagnetic Heisenberg XXX model in a magnetic field, focusing on Stirling and Otto cycles.
  • Results show that easy-axis anisotropy boosts engine efficiency, with the ring topology outperforming the chain at low temperatures in the Stirling cycle.
  • The Stirling cycle achieves Carnot efficiency with useful work at quantum critical points, while the quasistatic Otto cycle reaches Carnot efficiency but doesn't produce useful work, and the Stirling cycle operates across various thermal regimes compared to the Otto cycle.
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