Exchangeability
Mostrando 1-12 de 21 artigos, teses e dissertações.
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1. Effects of fertirrigation with effluent of primary treatment of wastewater from swine on the soil and in the productivity and quality of tomato (Lycopersicon esculentum Mill.) / Efeitos da fertirrigação com efluente do tratamento primário da água residuária da suinocultura no solo e na produtividade e qualidade do tomate (Lycopersicon esculentum Mill.)
In this study was analyzed the effects of fertirrigation with filtrated wastewater from swine (FWS) on soil and the physiological, sanitary variables and of tomato production, in drainage lysimeters under protected environment. The experiment was carried out in the lysimeter station at the Hydraulic, Irrigation and Drainage Experimental Area, in campus of th
Publicado em: 2009
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2. Medidas de assimetria bivariada e dependência local. / Measures of bivariate asymmetry and local dependence.
Esta tese trata de dois assuntos importantes na teoria de risco: o fenômeno da dependência local e a identificação e mensuração de assimetrias apresentadas pelos dados. A primeira parte trata de dependência local, sendo abordadas algumas medidas já analisadas na literatura. Versões locais dos coeficientes de Kendall e Spearman , baseadas na distribu
Publicado em: 2008
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3. EXCHANGEABILITY AND FORMATION CONSTANTS OF COPPER, ZINC AND CADMIUM WITH HUMIC SUBSTANCES AT INDIGENOUS CONCENTRATIONS
A series of laboratory experiments and modeling investigations studied the exchangeability and the formation constants of trace metals with water-soluble humic substances at environmentally realistic concentrations. Copper (Cu2+), zinc (Zn2+), and cadmium (Cd2+) were the studied trace metals. These metals have different affinities for the binding sites of hu
Publicado em: 2001
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4. Low Exchangeability of Selenocysteine, the 21st Amino Acid, in Vertebrate Proteins
Selenocysteine (Sec), the 21st amino acid, is incorporated into proteins through the recoding of a termination codon, an inefficient translational process mediated by a complex molecular machinery. Sec is a rare amino acid in extant proteins, chemically similar to cysteine (Cys), found in homologous position to Cys of nonselenoprotein families. Selenoprotein
Oxford University Press.
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5. Functional exchangeability of the ABC proteins of the periplasmic binding protein-dependent transport systems Ugp and Mal of Escherichia coli.
The periplasmic binding protein-dependent transport systems Ugp and Mal of Escherichia coli transport sn-glycerol-3-phosphate and maltose, respectively. The UgpC and MalK proteins of these transport systems, which couple energy to the transport process by ATP-hydrolysis, are highly homologous, suggesting that they might be functionally exchangeable. Compleme
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6. The PPPY Motif of Human T-Cell Leukemia Virus Type 1 Gag Protein Is Required Early in the Budding Process
Domains required late in the virus budding process (L domains) have been identified in the Gag proteins of a number of retroviruses. Here we show that the human T-cell leukemia virus type 1 candidate L domain motif PPPY is indeed required for virus production. Strikingly, however, mutation of this motif arrested virus particles at an earlier stage in the bud
American Society for Microbiology.
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7. Structural and functional exchangeability of 5 S RNA species from the eubacterium E.coli and the thermoacidophilic archaebacterium Sulfolobus solfataricus.
The role of 5 S RNA within the large ribosomal subunit of the extremely thermophilic archaebacterium Sulfolobus solfataricus has been analysed by means of in vitro reconstitution procedures. It is shown that Sulfolobus 50 S subunits reconstituted in the absence of 5 S RNA are inactive in protein synthesis and lack 2-3 ribosomal proteins. Furthermore, it has
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8. Complementation of the rev gene mutation among human and simian lentiviruses.
The functional exchangeability of the rev gene was assessed in transient transfection experiments by using in vitro-constructed rev and gag mutants of the following three primate lentiviruses: human immunodeficiency virus type 1 (HIV-1), HIV-2, and simian immunodeficiency virus from the African green monkey (SIV AGM). Cotransfection into SW480 cells of the r
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9. Some Factors Regulating Auxin Translocation in Intact Bean Seedlings 1
Several factors which influence the translocation patterns of stem-injected indoleacetic acid, 2,4-dichlorophenoxyacetic acid, and 2,4,5-trichlorophenoxyacetic acid in bean seedlings (Phaseolus vulgaris L. cv. Stringless Greenpod) were characterized. The acropetal translocation of auxin from the site of injection is markedly sensitive to concentration in the
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10. Detection of one slowly exchanging substrate water molecule in the S3 state of photosystem II.
The exchangeability of the substrate water molecules at the catalytic site of water oxidation in photosystem II has been probed by isotope-exchange measurements using mass spectrometric detection of flash-induced oxygen evolution. A stirred sample chamber was constructed to reduce the lag time between injection of H2(18)O and the detecting flash by a factor
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11. Studies of Human MDR1-MDR2 Chimeras Demonstrate the Functional Exchangeability of a Major Transmembrane Segment of the Multidrug Transporter and Phosphatidylcholine Flippase
P-glycoprotein (P-gp), encoded by the MDR1 gene, is a plasma membrane transporter which effluxes a large number of structurally nonrelated hydrophobic compounds. The molecular basis of the broad substrate recognition of P-gp is not well understood. Despite the 78% amino acid sequence identity of the MDR1 and MDR2 transporter, MDR2, which has been identified
American Society for Microbiology.
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12. Promoter of the adenovirus polypeptide IX gene: similarity to E1B and inactivation by substitution of the simian virus 40 TATA element.
The promoter of the adenovirus polypeptide IX (pIX) gene consists of an SP1 binding site and a TATA box and is remarkably similar to the promoter of the E1B gene in which it is nested. Plasmid constructs containing the pIX gene with deletions in the SP1 or TATA sites were defective in pIX mRNA production in transient expression assays. These results were con