Publications by authors named "M C Freire"

The present work analyzes the behavior of an activated carbon fabricated from almond shells for the removal of cationic dyes (methylene blue, MB, and malachite green, MG) by adsorption from aqueous solutions. The carbonized precursor was activated with KOH at a 1:2 (/) ratio with the objective of increasing both the surface area and the pore volume. Both non-activated and activated carbon were characterized in different aspects of interest in dye adsorption studies (surface structure, point of zero charge, specific surface area, and pore size distribution).

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Background: Visceral leishmaniasis (VL) is an infectious parasitic disease caused by the species Leishmania (Leishmania) infantum in the Mediterranean Basin, the Middle East, Central Asia, South America, and Central America, and Leishmania (Leishmania) donovani in Asia and Africa. VL represents the most severe and systemic form of the disease and is fatal if left untreated. Vaccines based on chimeric or multiepitope antigens hold significant potential to induce a highly effective and long-lasting immune response against infections by these parasites.

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Objectives: to assess sleep quality of patients with heart failure and associated sociodemographic and clinical characteristics.

Methods: a cross-sectional study, developed with 88 patients. Sleep quality was assessed by the Pittsburgh Sleep Quality Index.

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Introduction: Evaluating the antiviral potential of commercially available mouthrinses on SARS-CoV-2 holds potential for reducing transmission, particularly as novel variants emerge. Because SARS-CoV-2 is transmitted primarily through salivary and respiratory secretions and aerosols, strategies to reduce salivary viral burden in an antigen-agnostic manner are attractive for mitigating spread in dental, otolaryngology, and orofacial surgery clinics where patients may need to unmask.

Methods: Patients ( = 128) with confirmed COVID-19-positive status within 10 days of symptom onset or positive test result were enrolled in a double-blind randomized controlled trial of Food and Drug Administration-approved mouthrinses containing active ingredients ethanol, hydrogen peroxide, povidone iodine, chlorhexidine gluconate, cetylpyridinium chloride (CPC), or saline.

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Objectives: This study aimed to determine the prevalence, risk factors, and types of bacterial isolates associated with subclinical bacteriuria (SBU) in dogs with reduced mobility; and to explore the influence of SBU on surgical-site infection (SSI) in dogs treated surgically for their conditions.

Animals: We studied 140 client-owned dogs.

Procedure: Medical records of dogs with orthopedic and neurological conditions from 3 academic referral hospitals were reviewed.

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