Publications by authors named "R B Arturo"
This article presents a symmetrical reduced-size eight-element MIMO antenna array with high electromagnetic isolation among radiators. The array utilizes easy-to-build techniques to cover the n77 and n78 new radio (NR) bands. It is based on an octagonal double-negative metamaterial split-ring resonator (SRR), which enables a size reduction of over 50% for the radiators compared to a conventional disc monopole antenna by increasing the slow-wave factor.
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- This study focuses on the demographic and health characteristics of adults aged 100 and over in Mexico City, addressing a gap in existing research in Latin America.
- It involved a comprehensive assessment of 393 centenarians, revealing a mean age of 101.82 years, a significant female majority, and relatively low residency in nursing homes.
- Results indicate centenarians report good self-perception of health, with low prevalence of major illnesses like diabetes and dyslipidemia, but notable issues like malnutrition and osteoarthrosis, highlighting the unique health profile of this elderly population.
Objective: The recently discovered peptide irisin has been hypothesized to be a regulator of body metabolism. The objective of this work was to evaluate whether circulating human irisin levels are modulated by body size and changes in adiposity during an energy restriction treatment and the subsequent weight regain.
Methods: A group of 94 obese patients (50 men, 44 women; 49.
Aliphatic and aromatic ferrocenylthiosemicarbazones were synthesized. The characterization of the new ferrocenylthiosemicarbazones was done by IR, (1)H-NMR and (13)C-NMR spectroscopy, elemental analysis and X-ray diffraction studies. The biological activity of the obtained compounds was assessed in terms of anticancer activity.
View Article and Find Full Text PDFEpidemiological procedures can be organised under disaster conditions by means of a simple surveillance system and with few personnel. In the aftermath of the 4 February 1976 earthquake in Guatemala, an information system was organized by which the requisite information for decision-making was obtained with adequate speed and promptness. The initial epidemiologic informution was based on reports collected during the early days on symptoms observed at hospitals and health centers and in localities and villages in the stricken area.
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