Stock Accumulation
Mostrando 25-36 de 39 artigos, teses e dissertações.
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25. Influência da aplicação do lodo de esgoto (Biossólido) sobre a concentração e o estoque de nutrientes na biomassa do sub-bosque, na serapilheira e no solo de um talhão de E. grandis. / Influence of sewage sludge application (biosolids) on the concentration and stock of nutrients in the understory biomass, litter and soil in a stand of Eucalyptus grandis.
The increasing of urban population generates the need for an ecological and social acceptable disposal of sewage sludge produced by waste treatment plants. Therefore, the use of the sewage sludge (biosolid) as fertilizer and soil conditioner in forests plantations may be a suitable solution, becoming possible the increment of renewable wood production. Howev
Publicado em: 2005
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26. Carbon sequestration potenciality of sugarcane harvesting without burning. / Potencialidade do sistema de colheita sem queima da cana-de-açúcar para o sequëstro de carbono.
The present work was led in experimental areas installed by COPERSUCAR, in clay soil - Hapludox (Usina São Martinho) and sandy soil - Quartzipsamment (Usina da Pedra) in the area of Ribeirão Preto (SP). The objective was to analyze the influence of the deposited trash on the soil surface in relation to the dynamics of carbon in the sugarcane agrosystem sin
Publicado em: 2003
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27. Desenvolvimento de plastico biodegradavel a base de amido de milho e gelatina pelo processo de extrusão : avaliação das propriedades mecanicas, termicas e de barreira / Development of a biodegradable plastic base of cornstarch and gelatin by the process of extrusion: evaluation of mechanical properties, thermal and barrier
Due to the increasing accumulation of synthetic plastic rubbish, damaging the ecosystem, various strategies are being followed aimed at decreasing this aggression by way of prevention, reduction, recycling and chemical valorization of the synthetic materials, and especially by the use of biodegradable polymers. The use of starch to make thermoplastic materia
Publicado em: 2003
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28. The Various Sendai Virus C Proteins Are Not Functionally Equivalent and Exert both Positive and Negative Effects on Viral RNA Accumulation during the Course of Infection
Recombinant Sendai viruses were prepared which cannot express their Cprime, C, or Cprime plus C proteins due to mutation of their respective start codons ([Cprime-minus], [C-minus] and [double mutant], respectively). The [Cprime-minus] and [C-minus] stocks were similar to that of wild-type (wt) virus in virus titer and plaque formation, whereas the double-mu
American Society for Microbiology.
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29. The Effects of Spontaneous Mutation on Quantitative Traits. I. Variances and Covariances of Life History Traits
We have accumulated spontaneous mutations in the absence of natural selection in Drosophila melanogaster by backcrossing 200 heterozygous replicates of a single high fitness second chromosome to a balancer stock for 44 generations. At generations 33 and 44 of accumulation, we extracted samples of chromosomes and assayed their homozygous performance for femal
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30. A Mutator Factor in a Strain of DROSOPHILA MELANOGASTER: Identified by Use of Mutation, Reversion Rates and Male Recombination
A set of 1,000 "mutation accumulation" lines of Drosophila melanogaster, which originated from two different wild-type, lethal-bearing second chromosomes (Yamaguchi and Mukai 1974; Mukai and Cockerham 1977), was examined for evidence of a mutator factor by using the occurrence of recessive visible mutations and male recombination to identify its presence. Th
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31. Human Cytomegalovirus Inhibits Transcription of the CC Chemokine MCP-1 Gene
In primary human diploid fibroblasts, infection with an unpurified stock of human cytomegalovirus induced accumulation of the CC chemokine MCP-1 in the cell culture medium. By 24 h postinfection, the level of MCP-1 returned to that in uninfected cultures. When cells were infected with UV-inactivated human cytomegalovirus, the induction of MCP-1 was still obs
American Society for Microbiology.
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32. Acquisition of Sequences Homologous to Host DNA by Closed Circular Simian Virus 40 DNA II. Further Studies on the Serial Passage of Virus Clones
Three plaque isolates of SV40 strain 777 and 1 plaque isolate of strain 776 were grown to high-titer stocks and serially passaged, undiluted, in monkey BS-C-1 cells. In each case, the serial passaging procedure resulted in the accumulation of closed-circular SV40 DNA molecules containing covalently linked sequences homologous to reiterated host cell DNA (cal
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33. The predictive power of zero intelligence in financial markets
Standard models in economics stress the role of intelligent agents who maximize utility. However, there may be situations where constraints imposed by market institutions dominate strategic agent behavior. We use data from the London Stock Exchange to test a simple model in which minimally intelligent agents place orders to trade at random. The model treats
National Academy of Sciences.
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34. Genetic Modulation of RNA Metabolism in Drosophila. I. Increased Rate of Ribosomal RNA Synthesis
It has been suggested that a particular Y chromosome which is rDNA-deficient (YbbSuVar-5) may be associated with an increased utilization of rDNA template in adult testes (Shermoen and Kiefer 1975). To extend the observations on this chromosome, experiments were designed to determine if the chromosome has an effect on rRNA synthesis in bobbed adults and on
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35. Microbiological Study of Water-Softener Resins
Microbial identification using effluents backflushed from exhausted urban and rural tank resins and cleaned resins containing the sulfonated copolymer of styrene and divinylbenzene (SDB) were completed, along with microbial assessment of the concentrated stock salt brine. Forty-four different bacterial and fungal genera were identified. Extensive biochemical
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36. Restricted replication of simian immunodeficiency virus strain 239 in macrophages is determined by env but is not due to restricted entry.
Virus derived from the infectious, pathogenic, molecular clone of simian immunodeficiency virus (SIV) called SIVmac239 replicates poorly in primary rhesus monkey alveolar macrophage cultures. Variants with three to nine amino acid changes in the envelope replicate 100 to 1,000 times more efficiently in these macrophage cultures than parental SIVmac239. Early