Identity Mts
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Procedures to produce and identify stimulus control relations in identity matching-to-sample tasks with Cebus apella / Procedimentos para determinação e identificação de relações de controle em tarefas de IDMTS em Cebus apella
Obtaining Type S and Type R control relations in Identity MTS (IDMTS) tasks may make possible the development of an accurate observing repertoire towards all the stimuli (S+ and S-). In this work, a sequence of procedures was used to generate or identify possible stimulus control relations present in IDMTS training and tests. The purposes of the present work
Publicado em: 2008
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2. The establishment of stimulus control over pairs of graphically similar letters and syllables: A comparison among trial and error, fading and stimulus shaping / Uma comparação entre procedimentos de estabelecimento de controle de estímulos entre pares de letras com grafias semelhantes e no reconhecimento de sílabas: tentativa e erro, fading e shaping de estímulos
The purpose of this study was to compare 3 procedures to establish stimulus control between graphically similar letters. The participants were 12 non literate children, ages 2 to 6.The children were first exposed to an identity matching to sample test with letters. Then, they were randomly assigned to 1 of 3 simple discrimination training procedures: trial a
Publicado em: 2007
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3. The establishment of errorless simple discrimination with letters and its rotations: the effects in identity and arbitrary matching / A promoção de discriminação simples, sem erro, de letras e suas inversões: seus efeitos em testes de matching de identidade e arbitrário
No presente trabalho um procedimento de discriminação simples simultânea sem erro - dica atrasada - entre pares de letras graficamente semelhantes e suas inversões. Testou-se também os possíveis efeitos do treino discriminativo em tentativas de emparelhamento de acordo com o modelo (matching to sample) de identidade e arbitrário em que as letras que p
Publicado em: 2007
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4. Formação de classes de equivalência através de reforçamento específico em crianças com dificuldades de aprendizagem. / Equivalence class formation through specific reinforcement in children with learning difficulties
In Behavior Analysis, several studies have been carried out in order to understand how behavior can be productively controlled by arbitrarily related events, through equivalence class formation. The inclusion of reinforcer stimuli in the classes has been pointed as a possible facilitator of their formation. The present study aimed to evaluate the formation o
Publicado em: 2007
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5. Characterization of a cDNA clone encoding the carboxy-terminal domain of a 90-kilodalton surface antigen of Trypanosoma cruzi metacyclic trypomastigotes.
We have cloned and sequenced a cDNA for a metacyclic trypomastigote-specific glycoprotein with a molecular mass of 90 kDa, termed MTS-gp90. By immunoblotting, antibodies to the MTS-gp90 recombinant protein reacted exclusively with a 90-kDa antigen of metacyclic trypomastigotes. The insert of the MTS-gp90 cDNA clone strongly hybridized with a single 3.0-kb mR
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6. Amino acid sequence and comparative antigenicity of chicken metallothionein.
The complete amino acid sequence of metallothionein (MT) from chicken liver is reported. The primary structure was determined by automated sequence analysis of peptides produced by limited acid hydrolysis and by trypsin digestion. The comparative antigenicity of chicken MT was determined by radioimmunoassay using rabbit anti-rat MT polyclonal antibody. Chick
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7. gamma-Tubulin in Arabidopsis: gene sequence, immunoblot, and immunofluorescence studies.
gamma-Tubulin is a protein associated with microtubule (Mt)-organizing centers in a variety of eukaryotic cells. Unfortunately, little is known about such centers in plants. Genomic and partial cDNA clones encoding two gamma-tubulins of Arabidopsis were isolated and sequenced. Comparisons of genomic and cDNA sequences showed that both genes, TubG1 and TubG2,
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8. Cloning, chromosomal mapping and characterization of the human metal-regulatory transcription factor MTF-1.
Metallothioneins (MTs) are small cysteine-rich proteins that bind heavy metal ions such as zinc, cadmium and copper with high affinity, and have been functionally implicated in heavy metal detoxification and radical scavenging. Transcription of metallothioneins genes is induced by exposure of cells to heavy metals. This induction is mediated by metal-respons
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9. Purification and immunological identification of metallothioneins 1 and 2 from Arabidopsis thaliana.
Gene families encoding two types of metallothioneins (MTs) MT1 and MT2, have been identified in Arabidopsis thaliana, and their respective mRNAs have been shown to be regulated by copper in a tissue-specific manner (J. Zhou and P.B. Goldsbrough [1994] Plant Cell 6: 875-884; J. Zhou and P.B. Goldsbrough [1995] Mol Gen Genet 248: 318-328; A.S. Murphy and L. Ta