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O que são bons instrumentos de recolha de dados

Vamos desenvolver a nossa resposta a esta questão, partindo do conceito de instrumento, enquanto operacionalização de um construto, de modo a poder representá-lo e medi-lo. Mas o que significa medir em ciências humanas? Quais os parâmetros de qualidade de uma boa medida? Estará a medida sujeita a erros? Como lidar com os erros? O uso da medida quando estudamos o comportamento humano deve obedecer a alguns press...

Tiroidite de Quervain: Caso clínico

Corticoterapia na hepatite alcoólica - a propósito de um caso clínico

Rabdomiólise - a propósito de um caso clínico

A novel modified acrylic bone cement matrix. A step forward on antibiotic deliv...

Currently the safe and responsible use of antibiotics is a world-wide concern as it promotes prevention of the increasing emergence of multiresistant bacterial strains. Considering that there is a noticeable decline of the available antibiotic pipeline able to combat emerging resistance in serious infection a major concern grows around the prosthetic joint infections once the available commercial antibiotic loa...

Alergia a Proteínas do Leite de Vaca

Objectivo: Avaliar o papel da ingestão precoce de proteínas do leite de vaca (PLV), via biberons na maternidade (BibMat), na etiologia da alergia às PLV (APLV).Material: Foram analisados os processos de 130 crianças a quem foi diagnosticada APLV, por provas de provocação no Hospital Pediátrico (HP) de 1987 a 1993 e ali seguidas.Resultados: Dos 124 lactentes que mamaram, só 11% não tomaram biberons nos primeiros...

Mixture of partial least squares experts and application in prediction settings...

This paper addresses the problem of online quality prediction in processes with multiple operating modes. The paper proposes a new method called mixture of partial least squares regression (Mix-PLS), where the solution of the mixture of experts regression is performed using the partial least squares (PLS) algorithm. The PLS is used to tune the model experts and the gate parameters. The solution of Mix-PLS is ac...

Effects of biophysical interactions of the alley cropping system on yield and n...

Presentation ; Competition between trees and crops in alley cropping systems for soil moisture, light and nutrients, especially N can lead to decreased crop yield. However, there is tree-crop interactions in alley cropping the Canadian prairies are poorly understood. This study examined the effects of light and soil moisture conditions in the alleyways on yield and nutrition of forage crops. The experiment was...

Effects of Two Levels of Quantitative Feed Restriction for a 7-or 14-Days Perio...

Background: Compensatory growth after a feed restriction (FR) period, associated with increased feed intake and digestive adaptation allows the broilers chickens to demonstrate better food conversion efficiency and meat yield when submitted to an early-age food restriction. Differences in levels of feed restriction or on the period of feed restriction need to be adapted to each broilers strain, and should balan...

A  -mercaptoethanol-modified enzyme-linked immunosorbent assay for diagnosis of...

Two immunoglobulin G enzyme-linked immunosorbent assay (ELISA) versions using whole promastigotes of Leishmania infantum (syn. Leishmania chagasi) treated either with β-mercaptoethanol (β-ME-ELISA) or trypsin (TRYP-ELISA) as antigens were developed for the diagnosis of canine visceral leishmaniasis (CVL). By comparison with the direct agglutination test (DAT; 100%, 31/31; 95% confidence interval [CI]: 86.3–100%...