Publications by authors named "V K C Ribeiro"

Anthropic activities such as industries, agriculture and mining has generated public concern for its numerous irregular disposals of its waste, the incorrect deposition of heavy metals such as nickel (Ni) has caused the degradation and contamination of groundwater and water. Studies that point out cheap and efficient solutions have been an obstacle to the advancement of solutions for degraded area recovery programs. For this, a vegetable home experiment was developed, with an entirely randomized design with 5 treatments being a control (no metal) and 4 nickel concentrations (200 μM/L; 400 μM/L; 600 μM/L and 800 μM/L) with 6 repetitions.

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Feline leishmaniasis is increasingly recognized as a disease affecting cats worldwide, with notable prevalence in regions surrounding the Mediterranean Basin and in Brazil. An approximately one-year-old domestic shorthair cat was presented with small papules and nodules (2 mm) on the nasal planum. Physical examination and routine blood analyses were normal.

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Green propolis, particularly from the unique flora of the Brazilian Caatinga biome, has gained significant interest due to its diverse chemical composition and biological activities. This study focuses on the chemical characterization and antimicrobial evaluation of Caatinga green propolis. Twelve compounds were isolated through different chromatographic techniques, including flavanones (naringenin, 7--methyleriodictyol, sakuranetin), flavones (hispidulin, cirsimaritin), flavonols (quercetin, quercetin-3-methyl ether, kaempferol, 6-methoxykaempferol, viscosine, penduletin), and one chalcone (kukulkanin B).

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Background: Illicit cigarette consumption (ICC) results in cheaper cigarettes and lost tax revenue. Although several methods estimate the ICC proportion, the one based on cigarette butt (CB), the most littered item worldwide, is less common. This study aimed at estimating the ICC proportion of Guarujá, a major Brazilian city, based on littered CBs.

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Objectives: To analyze the prevalence of pediatric voice disorders.

Study Design: Systematic review (SR) and meta-analysis.

Methods: The research question of this SR was "What is the prevalence of dysphonia in children?" An electronic search was performed using the Medical Literature Analysis and Retrieval System online (Medline), Literatura Latino-Americana e do Caribe em Ciências da Saúde, EMBASE, Web of Science, and SCOPUS database.

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