Pck
Mostrando 13-24 de 71 artigos, teses e dissertações.
-
13. Indícios do conhecimento pedagógico do conteúdo de licenciandos em química durante o estágio supervisionado / Evidence of Pedagogical Content Knowledge in chemistry student teachers during pre-service training
The Pedagogical Content Knowledge (PCK) is the knowledge used by teachers during the teaching process (Kind, 2009). It is a tacit knowledge that includes analogies, illustrations and ideas that the teacher uses in order to make subject matter content understandable to the student. We believe that this knowledge can also be built during training program since
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/12/2011
-
14. Avaliação quantitativa de vegf a por qrt-pcr em fígados de pacientes com atresia biliar
A Atresia Biliar, principal causa de transplante hepático em crianças, tem causa obscura. Para avaliar a presença de uma arteriopatia como causa da doença investigamos a expressão do vascular endothelial growth factor A (VEGF A) em fígados de pacientes afetados. Amostras de fígados de pacientes com Atresia Biliar (n=21) e controles com outras causas d
Publicado em: 2010
-
15. Cystatin C and renal function in pediatric kidney transplant recipients
In clinical practice, the glomerular filtration rate (GFR) is often determined with serum creatinine. However, studies have shown cystatin C to be a better parameter for the diagnosis of impaired renal function. We compared GFR estimated by plasma cystatin C with GFR estimated by serum creatinine in a sample of 50 pediatric renal transplant recipients and 24
Brazilian Journal of Medical and Biological Research. Publicado em: 2009-12
-
16. Avaliação da expressão dos fatores angiogênicos VEGF a e seus receptores e FGFB em tecido hepático de pacientes com atresia biliar
A atresia biliar (AB) é uma colangiopatia de etiologia indeterminada que leva à necessidade de transplante hepático, mesmo com a realização da Portoenterostomia em tempo hábil. O espessamento da camada média da artéria hepática sugere o envolvimento de um distúrbio angiogênico. Este estudo objetivou avaliar a expressão imunoistoquímica do VEGF A
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2009
-
17. Uma investigação sobre a formação inicial de professores de matemática para o ensino de números racionais no ensino fundamental
Neste estudo investigamos a formação inicial de professores de Matemática para o ensino dos números racionais no Ensino Fundamental. Foram pesquisados 346 estudantes para professores de Matemática (189 iniciantes e 157 concluintes) e 41 formadores de professores de duas universidades do ABC Paulista. A coleta de dados foi realizada por intermédio de ci
Publicado em: 2007
-
18. Ensino de Ciências e conhecimento pedagógico de conteúdo: narrativas e práticas de professoras da séries iniciais.
Neste trabalho são analisadas as estratégias utilizadas pelas professoras das series iniciais para ensinar ciências. Tomando como ponto de partida analítico a abordagem de Lee Schulman (1987) sobre Conhecimento Pedagógico de Conteúdo (Pedagogical Content Knowledge- PCK), a pesquisa realizada procurou compreender como se dá entre conhecimento pedagógi
Publicado em: 2003
-
19. Phosphoenolpyruvate Carboxykinase in the C4 Monocot Urochloa panicoides Is Encoded by Four Differentially Expressed Genes1
Previous screening of a cDNA library of leaf poly(A+) RNA from Urochloa panicoides, a phosphoenolpyruvate carboxykinase (PCK)-type C4 monocot, led to the characterization of cDNAs encoding the U. panicoides PCK subunit PCK1. A second PCK sequence, designated PCK2, has now been found by rescreening the library. The deduced PCK2 polypeptide is 626 residues in
American Society of Plant Physiologists.
-
20. A mutant phosphoenolpyruvate carboxykinase in Escherichia coli conferring oxaloacetate decarboxylase activity.
The phosphoenolpyruvate carboxykinase in Escherichia coli (encoded by pck) catalyzes the conversion from oxaloacetate (OAA) to phosphoenolpyruvate under gluconeogenic conditions. We report here the characterization of two mutant alleles, pck-51 and pck-53, both of which are point mutations leading to single amino acid changes (D to N at position 268 and G to
-
21. Two novel protein kinase C-related genes of fission yeast are essential for cell viability and implicated in cell shape control.
Two novel protein kinase C (PKC)-like genes, pck1+ and pck2+ were isolated from fission yeast by PCR. Both contain common domains of PKC-related molecules, but lack a putative Ca(2+)-binding domain so that they may belong to the nPKC group. Gene disruption of pck1+ and pck2+ establishes that they share an overlapping essential function for cell viability. Ce
-
22. Regulation of chimeric phosphoenolpyruvate carboxykinase genes by the trans-dominant locus TSE1.
Extinction of phosphoenolpyruvate carboxykinase (PCK) gene expression in hepatoma x fibroblast hybrids is mediated by a trans-acting genetic locus designated tissue-specific extinguisher 1 (TSE1). To identify PCK gene sequences required for extinction, hepatoma transfectants expressing PCK-thymidine kinase (TK) chimeric genes were fused with TK- fibroblasts
-
23. Molecular and expression analysis of the Rhizobium meliloti phosphoenolpyruvate carboxykinase (pckA) gene.
The pckA gene of Rhizobium meliloti, encoding phosphoenolpyruvate carboxykinase, was isolated from a genomic cosmid library by complementation of the succinate growth phenotype of a Pck- mutant. The gene region was mapped by subcloning and Tn5 insertion mutagenesis. The DNA sequence for a 2-kb region containing the structural gene and its promoter was determ
-
24. Identification and characterization of the pckA gene from Staphylococcus aureus.
The Staphylococcus aureus pckA gene was identified and characterized. A pckA mutant lacked detectable phosphoenolpyruvate carboxykinase activity and grew poorly in the absence of glucose. Both enzymatic activity and pckA promoter activity in wild-type cells grown in the absence of glucose were at least 22-fold greater than activities in cells grown in the pr