Publications by authors named "M A Cubillos"

Article Synopsis
  • Despite progress toward cleaner energy, many households still rely on contaminated biomass for heating, leading to fuel poverty.
  • A case study in a Chilean home showed that using dry Eucalyptus logs produced significantly lower black carbon emissions compared to unclean biomass, which created harmful indoor air quality that lingered for hours.
  • This study underscores the health risks of limited access to clean fuels and highlights the broader issue of fuel poverty in vulnerable communities.
View Article and Find Full Text PDF

RASopathies encompass a diverse set of disorders affecting genes that encode proteins within the RAS-MAPK pathway. RASA1 mutations are the cause of an autosomal dominant disorder called capillary malformation-arteriovenous malformation type 1 (CM-AVM1). Unlike other RASopathies, facial dysmorphism has not been described in these patients.

View Article and Find Full Text PDF

We present a method, based on sinc series approximation, for generating and extending phase screens of atmospheric turbulence in real time to arbitrary lengths. Unlike phase screen representations based on the Fourier series, the sinc approximation is naturally suited to problems on infinite domains and thus avoids the problem of artificial periodicity inherent in the Fourier series. In particular, phase screens generated using the sinc method have accurate non-periodic statistics throughout the computational domain.

View Article and Find Full Text PDF

This paper further develops a recently proposed method for computing the diffraction integrals of optics based on sinc series approximation by presenting a numerical implementation, parameter selection criteria based on rigorous error analysis, and example optical propagation simulations demonstrating those criteria. Unlike fast Fourier transform (FFT)-based methods that are based on Fourier series, such as the well-known angular spectrum method (ASM), the sinc method uses a basis that is naturally suited to problems on an infinite domain. As such, it has been shown that the sinc method avoids the problems of artificial periodicity inherent in the ASM.

View Article and Find Full Text PDF

Background: Clinical Ethics Committees are deliberative groups whose main functions are to assess cases with ethical-clinical conflicts, to generate institutional protocols for preventive purposes, and to train health teams.

Aim: To analyze the activity of a clinical ethics committee of a general hospital in the period 2007-2020.

Material And Methods: A retrospective analysis of all session records, annual reports, case resolution and documents generated by the Clinical Ethics Committee of Carlos van Buren Hospital in Valparaíso, Chile, between 2007 and 2020, was carried out.

View Article and Find Full Text PDF