Navegando por Autor "HENKEL, Karl"

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Acesso aberto (Open Access)
Análise agrossocial da percepção de agricultores familiares sobre sistemas agroflorestais no nordeste do estado do Pará, Brasil
(Universidade Federal do Pará, 2008-12) HENKEL, Karl
In 2005 a case study was undertaken in agroforestry systems as practiced by family farmers in the Arapuã-Simeira colonization project, municipality of Garrafão do Norte, Pará state, in northern Brazil, with the purpose of describing and systematizing the agrosocial characteristics of the family farmers and their experiences and perceptions of agroforestry systems. The methodology consisted of field research, application of standard questionnaires, observation and discussion in group. Farmers gave preference to some perennial cultures and forest species for intercropping, and the main explication for the introduction of species in their fields was economic gain and social behavior. Multifaceted thinking is seen in the choice of agriculture products and management options, resulting in each property having a combination of different agricultural systems that are adapted to local conditions. The farmer knows better than anyone else how to determine the ideal combination for his agricultural system. The study shows the agrosocial and socialcultural trajectory of the farmers and hypothesis are advanced on what would imply the adoption of agroforestry systems in family agriculture. A systemic approach can be very useful in understanding the relationships and social processes that are important aspects of the rural and agrarian question.
Acesso aberto (Open Access)
Análise da não resposta em surveys políticos
(2012-06) HENKEL, Karl
This article focuses on the social structure of the interviewed that practiced nonresponse item in a survey on political issues. For this was carried out a survey with 2.010 young voters of public schools in Belém (PA). The share of non response increase with the change of one lifecycle to another one or with the proper experience gained by the effects of the public politics, what leaves the interviewed in doubt in relation to the values and opinions established.
Acesso aberto (Open Access)
A categorização e a validação das respostas abertas em surveys políticos
(Universidade Federal do Pará, 2017-10) HENKEL, Karl
The article deals with the problem of the categorization of answers about politics, government, and democracy obtained through open-ended questions in a survey with a random sample of 800 interviewees. In order to identify the degree of comprehensibility of the questions, a pre-test and missing value analysis were carried out to elaborate a psychometric profile. In the categorization process, the deductive method was superior to the inductive one. The media and the life cycle position influences perception about politics and government. The validation of intra- and inter-coder reliability shows that coders, at a given moment, begin to accept irrational responses as rational ones, and that they can be subject to framing effects.