Results: 66

Componentes principales en el agrupamiento de variables clínicas de la COVID-19 en Santiago de Cuba
Principal component analysis in COVID-19 clinical variable clustering in Santiago de Cuba

Introducción: Desde marzo de 2020 Cuba está siendo afectada por el SARS-CoV-2, coronavirus altamente infeccioso y causante de la COVID-19. La COVID-19 presenta un conjunto de síntomas asociados y la evolución de los pacientes puede estar influenciada por la presencia de ciertos antecedentes patológi...

Determination of ochratoxin A in coffee by ELISA method and its relationship with the physical, physicochemical and microbiological properties

Vitae (Medellín); 28 (2), 2021
Background: Coffee is one of the most consumed beverages in the world; however, it may contain toxic compounds such as ochratoxin A (OTA). Objectives: Determine the OTA’s presence in different types of coffee, intended for beverage preparation and marketed in Colombia through the application of the enz...

Multivariate statistical analysis of the essential oils of five Beilschmiedia species from Peninsular Malaysia

Identification of the chemical compositionof essential oils is very important for ensuring the quality of finished herbal products. The objective of the study was to analyze the chemical components present in the essential oils of five Beilschmiediaspecies (i.e. B. kunstleri, B. maingayi, B. penangiana,...

Proposal of a questionnaire to investigate social communication skills of children with typical development and communication disorders

Rev. CEFAC; 23 (4), 2021
ABSTRACT Purpose: to verify the possibility of administering a simple questionnaire to family members who communicate with their children to identify communication functional characteristics of children with different manifestations of language development. Methods: 95 parents/guardians were individual...

Can the Granulometric Soil Fractions Attenuate the Radiation Differently from the Whole Soil?

Abstract The purpose of this research was to discriminate soil fractions using mineralogical and elemental analyses and to show those fractions that present greater contribution to the soil mass attenuation coefficient (μ) as well as their partial cross-sections for photoelectric absorption (PA), co...

Identification of dietary patterns by principal component analysis in schoolchildren in the South of Brazil and associated factors

Abstract Objectives: to identify dietary patterns (DP) and associated factors in first grade school-children in elementary schools in the South of Brazil. Methods: school-based cross-sectional study, with a non-probabilistic sample of 782 schoolchildren aged 6 to 8. Food intake was assessed by a food f...

Ortogonalización de derivaciones de electrocardiograma
Orthogonalization of electrocardiographic derivations

Introducción: El delineador de señales electrocardiográficas (ECG) multiderivación basado en la transformada wavelet posee alta resolución espacial y permite eliminar las diferencias interderivación que aparecen tradicionalmente en los métodos uniderivación. Para esto necesita de derivaciones de ...

Aplicación del Análisis de Componentes Principales en el proceso de purificación de un biofármaco
Application of Principal Component Analysis in the purification process of a biopharmaceutical

En este trabajo se presenta la aplicación del Análisis de Componentes Principales, mediante el programa THE UNSCRAMBLER versión 8.0, a los datos registrados en un período de 2 años en la etapa de purificación de una planta de producción de Eritropoyetina Humana Recombinante que está basada en var...

Greek yogurt with added sorghum flours: antioxidant potential and sensory acceptance

Rev. chil. nutr; 47 (2), 2020
ABSTRACT The aim of this study was to develop and evaluate the antioxidant characteristics and sensory acceptance of Greek yogurt with added whole sorghum flours (WSF) from genotypes BRS305 (tannin) and BR501 (tannin-free). Five formulations were elaborated: 1) Control (without WSF); 2) 2% BR501; 3) 4% B...