The anthropogenic dark earths (ADE, Terra Preta de Índio or terra preta arqueológica, as are often referred to in Portuguese) feature unique properties that are interesting not only from a pedological point of view but have important agronomic and economic…

The occurrence of deoxynivalenol (DON) was evaluated in 113 wheat samples from the northern and central/ southwestern regions of Paraná State, Brazil during the 2008 and 2009 growing seasons, and this rate of occurrence was used to estimate the DON…

Considering the importance of the debate on the topic of disasters related to landslides, flooding and technological risks, under international and more recently in Brazil, this work analyzes the situations of vulnerability risk areas on the Northern Coast of São…

The combination of soil science, forestry, agronomy and biology allowed an analytical comparison of various experimental mixed culture systems. From these studies, a descriptor system was developed which allows to understand the contribution of each plant species to nutrient cycling,…

2009, Resumo.

The purpose of the present thesis was to examine psychosocial and behavioural factors associated with the decision-making process involved in uptake of the human papillomavirus (HPV) vaccine. In Canada, the HPV vaccine has been approved for women and men aged…

My study focuses on b-boying, the archetype of hiphop dance, to better understand the informal teaching and learning processes embodied in the freestyle or raw b-boy cipher (improvisational dance circle). I draw from an ethnographic approach to investigate how hiphop…

This paper investigates and analyses the process of building a knowledge management (KM) model at Brazil‟s Embrapa (The Brazilian Agricultural Research Corporation). Embrapa is a world class knowledge organization whose mission is to provide feasible solutions for the sustainable development…

Objective: Despite the established effectiveness of medication in improving symptoms of attention-deficit hyperactivity disorder (ADHD) (Spencer et al 2000), rates of adherence to pharmacotherapy are low, ranging from 34% to 91% (Gau et al., 2006). Since higher adherence rates are…

This thesis investigated how instructional environments might be optimally designed for all students to restructure prior knowledge and learn counter-intuitive science concepts, referred to as conceptual change. Three independent variables were examined in relation to real-time cognitive processes and subsequent…