Multiplicity Of Steady State
Mostrando 1-12 de 12 artigos, teses e dissertações.
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1. InvestigaÃÃo do comportamento dinÃmico de biorreatores contÃnuos do tipo tanque perfeitamente agitados atravÃs de diagramas de bifurcaÃÃo
In this work, a theoretical study on the dynamic behavior of fermentation was done using a model constructed to represent the continuous culture of Zymomonas mobilis in a stirred tank bioreactor. The model was analyzed by dynamic simulation and by drawing bifurcation diagram, to study the influence of the parameters of the model in the stability and in the a
Publicado em: 2006
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2. Amino Acid Pool Formation in Pseudomonas aeruginosa
The accumulation and behavior of various amino acids in the pool of Pseudomonas aeruginosa (ATCC 9027) were investigated. Patterns of pool formation and maintenance varied with different amino acids tested and were dependent, to a considerable extent, upon the ability of the organism to catabolize the particular amino acid. The establishment of steady-state
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3. Activation of gene expression by herpes simplex virus type 1 ICP0 occurs at the level of mRNA synthesis.
ICP0 is a nuclear phosphoprotein involved in the activation of herpes simplex virus type 1 (HSV-1) gene expression during lytic infection and reactivation from viral latency. Although available evidence suggests that ICP0 acts at the level of transcription, definitive studies specifically addressing this issue have not been reported. In the present study we
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4. Pattern recognition, chaos, and multiplicity in neural networks of excitable systems.
We study a neural network composed of excitable FitzHugh neurons that interact by diffusive type connections. Patterns of neural activity may be stored by a Hebbian rule. The stored patterns are recalled and given by the transient activity of the neurons after the network has been perturbed by related patterns and relaxes back to its steady state. Periodic p
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5. Absence of IE1 p72 Protein Function during Low-Multiplicity Infection by Human Cytomegalovirus Results in a Broad Block to Viral Delayed-Early Gene Expression
Human cytomegalovirus (HCMV) ie1 deletion mutant CR208 is profoundly growth deficient after low-multiplicity infection of primary fibroblasts. Previously, we showed that many fewer cells infected with CR208 at low multiplicity accumulated the delayed-early (DE) protein ppUL44 than accumulated the immediate-early 2 (IE2) p86 protein, indicating a high frequen
American Society for Microbiology.
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6. Permeability characteristics of complement-damaged membranes: evaluation of the membrane leak generated by the complement proteins C5b-9.
Permeability characteristics of the membrane lesion generated by the terminal complement proteins are considered in light of recent observations that the measured diffusion of solute across complement-damaged membranes does not conform to the "doughnut hole" model of a discrete transmembrane pore formed by the inserted C5b-9 complex. By using the measured ki
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7. Influenza virus infection of tracheal gland cells in culture.
Influenza virus-induced tracheobronchitis causes limited epithelial deciliation but markedly decreased mucociliary transport. This suggests that virus-induced alterations in airway mucus play a role in decreased mucociliary transport. Airway submucosal glands are a primary source of mucus. Therefore, we examined virus-gland cell interactions by exposing prim
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8. Neutralization of adenoviruses: kinetics, stoichiometry, and mechanisms.
Kinetic curves for neutralization of adenovirus type 2 with anti-hexon serum revealed no lag periods even when the serum was highly diluted or when the temperature was lowered to 4 degrees C, thus indicating a single-hit mechanism. Multiplicity curves determined with anti-hexon serum displayed a linear correlation between the degree of neutralization and dil
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9. Expression in Multigene Families. Analysis of Chloroplast and Mitochondrial Proteases1
The proteolytic machinery of chloroplasts and mitochondria in Arabidopsis consists primarily of three families of ATP-dependent proteases, Clp, Lon, and FtsH, and one family of ATP-independent proteases, DegP. However, the functional significance of the multiplicity of their genes is not clear. To test whether expression of specific isomers could be differen
American Society of Plant Biologists.
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10. Herpes simplex viruses with mutations in the gene encoding ICP0 are defective in gene expression.
Herpes simplex virus type 1 (HSV-1) mutants with codon insertions and deletions in IE-0, the gene encoding ICP0, were constructed. The HSV-1 deletion mutant dl1403 (N. D. Stow and E. C. Stow, J. Gen. Virol. 67:2571-2585, 1986) and an IE-0:lacZ transplacement vector isolated in this study were used to facilitate the construction of mutant viruses. Mutant viru
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11. Stably expressed antisense RNA to cytomegalovirus UL83 inhibits viral replication.
The human cytomegalovirus (HCMV) open reading frame UL83 encodes a phosphoprotein of 64 to 68kDa (pp65) which is a major constituent of this virion and dense bodies. To determine the importance of the HCMV gene in the virus cycle, we studied HCMV replication in astrocytoma cells stably transfected with a retroviral vector carrying an antisense UL83 cDNA. Rev
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12. Viable Human Cytomegalovirus Recombinant Virus with an Internal Deletion of the IE2 86 Gene Affects Late Stages of Viral Replication
Using bacterial artificial chromosome (BAC) technology, we have constructed and characterized a human cytomegalovirus recombinant virus with a mutation in the exon specific for the major immediate-early region 2 (IE2) gene product. The resulting IE2 86-kDa protein (IE2 86) has an internal deletion of amino acids 136 to 290 and is fused at the carboxy terminu
American Society for Microbiology.