Proficiency Test
Mostrando 13-24 de 84 artigos, teses e dissertações.
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13. Evaluation of QuEChERS Sample Preparation for Determination of Avermectins Residues in Ovine Muscle by HPLC-FD and UHPLC-MS/MS
A fast and sensitive method using high performance liquid chromatography-fluorescence detection (HPLC-FD) and ultra-high performance liquid chromatography tandem mass spectrometry (UHPLC-MS/MS) was developed and validated for the determination of avermectins residues in ovine muscle samples. QuEChERS (quick, easy, cheap, effective, rugged and safe) sample pr
J. Braz. Chem. Soc.. Publicado em: 2017-05
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14. ANÁLISE DE PREVISIBILIDADE DE ITENS EM PROVAS DE COMPREENSÃO DE CERTIFICAÇÃO LINGUÍSTICA. IT PARA A FAIXA DE COMPETÊNCIA DE AUTONOMIA
RESUMO Introduzimos o artigo com o valor percentual (índice di previsibilidade) adotado no âmbito dos processos de validação de um teste de competência linguística (proficiency test). O índice, em especial, nos informa o grau de previsibilidade das respostas a quesitos de provas de compreensão com itens externos ao texto de leitura (estão excluídos
Trab. linguist. apl.. Publicado em: 2016-04
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15. LA CAPACIDAD DE CORRECCIÓN DE ERRORES Y EL FEEDBACKCORRECTIVO ESCRITO: ESTUDIO DE CASOS DE APRENDICES DE PORTUGUÉS HISPANOHABLANTES
ABSTRACTThe efectiveness of corrective feedback (CF) in written production has been controversial in the last decades (BITCHENER y FERRIS, 2012; TRUSCOTT, 2007; VAN BEUNINGEN, 2010). The investigation focused on experimental studies, with quantitative research, about long-term acquisition and with a restricted range of errors, but recently researchers make a
Trab. linguist. apl.. Publicado em: 2015-09
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16. Differential motor alterations in children with three types of attention deficit hyperactivity disorder
Objective To determine frequency of motor alterations in children with attention deficit hyperactivity disorder (ADHD). Method We evaluated 19 children aged 7-12 years with ADHD classified in three sub-types: Combined (ADHD-C), with Inattention (ADHD-I), and with Hyperactivity (ADHD-H). Controls were age- and gender matched healthy children. We utilized B
Arq. Neuro-Psiquiatr.. Publicado em: 2014-11
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17. Avaliação de laboratórios brasileiros na determinação de alguns parâmetros de qualidade de biocombustíveis
This work shows the results of a Proficiency Testing performed by a partnership between INMETRO and ANP. The performance of 49 Brazilian laboratories (using the z-score statistical test) in determining 10 quality parameters of ethanol fuel and biodiesel was evaluated. The certified reference values were provided by INMETRO, allowing a more rigorous assessmen
Quím. Nova. Publicado em: 2013
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18. Ensino da escrita em inglês com foco no desenvolvimento: uma análise das concepções de língua e escrita dos alunos / Teaching writing in English with focus on development: an analysis of students\ conceptions of language and writing
This research investigates the conceptions of language and writing of six students in an English writing course based on the conceptual approach (FERREIRA, 2005), a perspective for teaching second language writing which joins the Australian school of genres with a pedagogy based on Activity Theory called Movement from the Abstract to the Concrete (MAC). Base
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/03/2012
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19. Participation in proficiency programs and promotion of quality in transfusion services of Minas Gerais
OBJECTIVE: This study aimed at identifying associations between the participation of transfusion services in immunohematology external quality control programs and their accuracy in immunohematology testing and adaptation to technical and legal operational procedures. METHODS: From 2007 to 2009, a cross-sectional study was conducted in 219 transfusion servic
Revista Brasileira de Hematologia e Hemoterapia. Publicado em: 2012
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20. Performance of IPEN-CNEN/SP neutron activation analysis laboratory for microelement determinations in proficiency testing.
The performance of Neutron Activation Laboratory, IPEN ? CNEN/SP, was evaluated for the Ca, Fe, K, Mn, Na and Zn determinations in animal feed samples for ruminants through a proficiency test (PT) program. This PT program is organized by Embrapa Cattle Southeast to evaluate laboratories that analyze animal feed samples. Considering the fractions of satisfact
INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE. Publicado em: 2011
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21. The relationship between school violence and student proficiency
School violence has recently become a central concern among teachers, students, students' parents and policymakers. Violence can induce behaviors on educational agents that go against the goals of improving the quality of education and increasing school attendance. In fact, there is evidence that school environmental characteristics and student performance a
Publicado em: 01/07/2010
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22. Aplicações estatísticas na área industrial / Statistical applications in the industrial area
Apresentamos algumas aplicações de ferramentas estatísticas que são comumente utilizadas na melhoria da qualidade de processos industriais. Inicialmente, desenvolveu-se procedimentos para testar a competência de laboratórios que participam de programas de ensaios de proficiência. Em situações onde os laboratórios medem várias vezes no mesmo ponto,
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/06/2009
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23. Estudo da expressão de eventos de transferência de posse na interlíngua de brasileiros aprendizes de inglês
Based on Construction Grammar theory (GOLDBERG, 1995, 2006) and on the Interlanguage Hypothesis (SELINKER, 1972), the present study has sought to investigate the acquisition of the English Ditransitive Construction by 62 native speakers of Brazilian Portuguese, grouped according to their proficiency level (beginner, intermediate and advanced) in the English
Publicado em: 2009
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24. Impactos do Programa Nacional de AlimentaÃÃo Escolar â PNAE sobre a nutriÃÃo dos alunos, defasagem e desempenho escolar
A tese tem como objetivos: (i) avaliar o impacto do Programa Nacional de AlimentaÃÃo Escolar (PNAE) sobre o nÃvel nutricional; (ii) investigar o efeito da carÃncia e do distÃrbio nutricional sobre a defasagem idade-sÃrie e sobre o desempenho de escolas pÃblicas brasileiras de 1Â a 8Â sÃries do ensino fundamental quando avaliados em testes de profic
Publicado em: 2009