Coherent Accumulate
Mostrando 1-4 de 4 artigos, teses e dissertações.
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1. Acumulo coerente de excitação na tranferencia eletromagneticamente induzida por um trem de pulsos ultracurtos / Coherent accumulation of excitation in the electromagnetically induced transparency by an ultrashort pulse train
Nesta tese apresentamos um estudo teórico da interação coerente entre trens de pulsos ultracurtos e sistemas atômicos simples de dois e três níveis, este último na configuração L. Primeiramente avaliamos a situação em que um trem de pulsos ultracurtos não só sonda um sistema de três níveis na configuração L, mas também leva o átomo à conf
Publicado em: 2009
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2. Incomplete editing of rps12 transcripts results in the synthesis of polymorphic polypeptides in plant mitochondria.
C-to-U editing causes specific nucleotide changes in plant mitochondrial nRNAs that are required for the restoration of the evolutionarily conserved amino acid sequence. Transcripts for the ribosomal protein S12 gene (rps12) have six C-to-U editing sites and are highly heterogeneous as a result of incomplete editing. immunological analysis demonstrated that
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3. Multiple neural correlates of detection in the human brain
We used event-related functional MRI to examine the neural consequences of detecting the presence or absence of a stimulus. Subjects detected a brief interval of coherent motion embedded in dynamic noise that was presented throughout a test period. Several brain regions, including V1/V2, middle temporal complex (MT+), left intraparietal cortex, and the
The National Academy of Sciences.
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4. The roles of latex and the vascular bundle in morphine biosynthesis in the opium poppy, Papaver somniferum
The opium poppy, Papaver somniferum, is one of mankind's oldest medicinal plants. Opium poppy today is the commercial source of the narcotic analgesics morphine and codeine. Along with these two morphinans, opium poppy produces approximately eighty alkaloids belonging to various tetrahydrobenzylisoquinoline-derived classes. It has been known for over a centu
National Academy of Sciences.