Response Independent Environmental Changes
Mostrando 1-12 de 22 artigos, teses e dissertações.
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1. Longitudinal impact of clinical and socioenvironmental variables on oral health-related quality of life in adolescents
Abstract The aim of the present study was to investigate the impact of oral diseases, socioeconomic status, and family environmental factors on changes in the perception of oral health-related quality of life (OHRQoL) in adolescents. A prospective cohort study was conducted in Juiz de Fora, Minas Gerais, Brazil, with a sample of 286 twelve-year-old adolescen
Braz. oral res.. Publicado em: 21/08/2017
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2. Response dependent and response independent environmental changes: a study on the effects of contiguity versus contingency / Alterações ambientais dependentes e independentes da resposta: uma investigação dos efeitos de contigüidade versus contingência
The effects of presenting stimuli that are well established as reinforcers independently of responding have been studied under two different perspectives. On the first perspective, through a procedure called accidentally reinforcement, stimuli are presented non-contingently, resulting in the accidental selection of a response, an effect called superstition.
Publicado em: 2006
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3. A study of response independent environmental changes: learned helplessness, superstitious behavior and the role of verbal report. / Um estudo sobre alterações ambientais independentes da reposta: desamparo aprendido, comportamento supersticioso e o papel do relato verbal
The present study investigated the effects of exposure to aversive events- controllable and incontrollable on the performance of young adults on an escape/avoidance task that followed such exposure. A second goal of the present study was to evaluate the possible effects of requests of verbal reports over the participants performances. Participants were 40 ad
Publicado em: 2006
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4. Alterações ambientais independentes da resposta: um estudo sobre desamparo aprendido, comportamento supersticioso e o papel do relato verbal / Response independent environmental changes: a study on learned helplessness, superstitious behavior, and the role of verbal report
O presente trabalho foi uma tentativa de produzir desamparo aprendido com sujeitos humanos e, também, de proporcionar uma descrição acurada das contingências em vigor para os grupos submetidos tanto à controlabilidade quanto à incontrolabilidade. Para tanto, dois experimentos foram realizados. No primeiro experimento, o objetivo foi: investigar os efei
Publicado em: 2006
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5. Alterações ambientais independentes da resposta: um estudo sobre desamparo aprendido, comportamento supersticioso e o papel do relato verbal / Response independent environmental changes: a study on learned helplessness, superstitious behavior, and the role of verbal report
O presente trabalho foi uma tentativa de produzir desamparo aprendido com sujeitos humanos e, também, de proporcionar uma descrição acurada das contingências em vigor para os grupos submetidos tanto à controlabilidade quanto à incontrolabilidade. Para tanto, dois experimentos foram realizados. No primeiro experimento, o objetivo foi: investigar os efei
Publicado em: 2006
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6. The relationship between superstitious behavior and conditioned reinforcer: a systematic replication of Lee (1996). / A relação entre comportamento supersticioso e estímulo reforçador condicionado: uma replicação sistemática de Lee (1996)
O comportamento supersticioso foi primeiramente estudado em 1948 por B. F. Skinner, cujo trabalho Superstition in the Pigeon deu início a uma série de pesquisas envolvendo este tema. O presente trabalho foi realizado com o objetivo de replicar sistematicamente o trabalho de Lee (1996) e investigar se mudanças sistemáticas na disposição de ícones na te
Publicado em: 2006
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7. Um estudo sobre alterações ambientais independentes da resposta, comportamento supersticioso e desamparo aprendido
Sometimes environmental changes that follow responses are not produced by the responses themselves, such changes are response independent and the probability of their occurrence do not depend on the occurrence of a response. Two different fields of research have investigated the independent relation between the emission of responses by an organism and enviro
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/04/2002
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8. Cold Adaptation in Budding YeastD⃞
We have determined the transcriptional response of the budding yeast Saccharomyces cerevisiae to cold. Yeast cells were exposed to 10°C for different lengths of time, and DNA microarrays were used to characterize the changes in transcript abundance. Two distinct groups of transcriptionally modulated genes were identified and defined as the early cold respon
The American Society for Cell Biology.
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9. Effect of Slow Growth on Metabolism of Escherichia coli, as Revealed by Global Metabolite Pool (“Metabolome”) Analysis
Escherichia coli growing on glucose in minimal medium controls its metabolite pools in response to environmental conditions. The extent of pool changes was followed through two-dimensional thin-layer chromatography of all 14C-glucose labelled compounds extracted from bacteria. The patterns of metabolites and spot intensities detected by phosphorimaging were
American Society for Microbiology.
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10. Osmotic signal transduction to proU is independent of DNA supercoiling in Escherichia coli.
proU expression has been proposed to form part of a general stress response that is regulated by increased negative DNA supercoiling brought about by environmental signals such as osmotic or anaerobic stress (N. Ni Bhriain, C. J. Dorman, and C. F. Higgins, Mol. Microbiol. 3:933-944, 1989). However, we find that although proU-containing plasmids derived from
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11. Transcriptome-based determination of multiple transcription regulator activities in Escherichia coli by using network component analysis
Cells adjust gene expression profiles in response to environmental and physiological changes through a series of signal transduction pathways. Upon activation or deactivation, the terminal regulators bind to or dissociate from DNA, respectively, and modulate transcriptional activities on particular promoters. Traditionally, individual reporter genes have bee
National Academy of Sciences.
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12. Clonal Selection for Transcriptionally Active Viral Oncogenes during Progression to Cancer
Primary keratinocytes immortalized by human papillomaviruses (HPVs), along with HPV-induced cervical carcinoma cell lines, are excellent models for investigating neoplastic progression to cancer. By simultaneously visualizing viral DNA and nascent viral transcripts in interphase nuclei, we demonstrated for the first time a selection for a single dominant pap
American Society for Microbiology.