Accelerated Classes
Mostrando 13-24 de 34 artigos, teses e dissertações.
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13. Política educacional do Estado de São Paulo (1995-1998): desconstrução da escola pública
The objective of our doctorate work is to find out the implications that the SEESP measures and the projects have caused to the organization of Public State Schools within the period of 1995-1998. Our hypothesis is that the Educational Politics of SEESP contribuías to the deconstruction of the Public School; it contributes to its privatization. We developed
Publicado em: 2001
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14. In vivo and in vitro characterization of virulence-deficient mutants of Vibrio cholerae.
In vitro and in vivo interactions between Vibrio cholerae and the infant mouse intestinal environment were examined by using a number of virulence-deficient mutants of strain CA401 which are unable to induce a typical diarrheal response. In vitro interactions with upper bowel sections were evaluated by determining percent association of radiolabeled organism
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15. Accelerated development of IgG autoantibodies and autoimmune disease in the absence of secreted IgM
Individuals with systemic lupus erythematosus and rheumatoid arthritis are characterized by the presence of high levels of circulating IgM and IgG autoantibodies. Although IgG autoantibodies often are pathogenic, the role of IgM autoantibodies in autoimmune disease is not clear. Using mice that are unable to secrete IgM but are able to express surface IgM an
The National Academy of Sciences.
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16. Autocide AMI rescues development in dsg mutants of Myxococcus xanthus.
Low concentrations of autocide AMI rescued aggregation and sporulation in the dsg mutant class of Myxococcus xanthus but were incapable of rescuing asg, bsg, or csg mutants. AMI-induced spores of dsg mutants were resistant to heat and sonication and germinated when plated on nutrient-rich agar. AMI accelerated aggregation and sporulation and increased the fi
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17. Long-Term Preservation of Fungus Cultures with Liquid Nitrogen Refrigeration
A preservation technique was tested on 162 strains of culturally fastidious fungi sensitive to lyophilization, representing five classes. The results indicated that liquid nitrogen storage of frozen specimens may be used as an alternative to lyophilization for long-term preservation of stock cultures of fungi. The fungus was frozen in 10% (v/v) glycerol-wate
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18. Effect of protein synthesis inhibition on gene expression during early development of Dictyostelium discoideum.
Several genes which are deactivated on the initiation of development of Dictyostelium discoideum were identified by differential screening of various cDNA libraries. These genes have in common a decrease in the steady-state levels of their corresponding mRNAs on the onset of development and as development proceeds. When development was carried out in the abs
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19. The Functional Genomic Distribution of Protein Divergence in Two Animal Phyla: Coevolution, Genomic Conflict, and Constraint
We compare the functional spectrum of protein evolution in two separate animal lineages with respect to two hypotheses: (1) rates of divergence are distributed similarly among functional classes within both lineages, indicating that selective pressure on the proteome is largely independent of organismic-level biological requirements; and (2) rates of diverge
Cold Spring Harbor Laboratory Press.
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20. Birds, behavior, and anatomical evolution.
Study of more than 200 species suggests that the anatomical differences among birds are as big as those among other vertebrates of comparable taxonomic rank. The result is notable because, for more than 100 years, many biologists have believed that birds are more uniform anatomically than other classes of vertebrates. Furthermore, assessment of biochemical a
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21. DICER-LIKE 4 functions in trans-acting small interfering RNA biogenesis and vegetative phase change in Arabidopsis thaliana
Arabidopsis thaliana contains four DICER-LIKE (DCL) genes with specialized functions in small RNA biogenesis for RNA interference-related processes. A mutant with defects in DCL4 was identified and analyzed for microRNA- and endogenous, small interfering RNA (siRNA)-related functions. The dcl4-2 mutant contained normal or near-normal levels of microRNAs (21
National Academy of Sciences.
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22. Products Released from Enzymically Active Cell Wall Stimulate Ethylene Production and Ripening in Preclimacteric Tomato (Lycopersicon esculentum Mill.) Fruit 1
Enzymically active cell wall from ripe tomato (Lycopersicon esculentum Mill.) fruit pericarp release uronic acids through the action of wall-bound polygalacturonase. The potential involvement of products of wall hydrolysis in the induction of ethylene synthesis during tomato ripening was investigated by vacuum infiltrating preclimacteric (green) fruit with s
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23. Regulation of macromolecular synthesis during hyphal germ tube emergence from Mucor racemosus sporangiospores.
Protein and RNA syntheses were examined during hyphal germ tube emergence from sporangiospores of a dimorphic phycomycete, Mucor racemosus. Both classes of macromolecules were synthesized immediately upon introduction of the dormant sporangiospores into nutrient medium. The specific rates of synthesis of both protein and RNA accelerated during initial germ t
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24. Textpresso: An Ontology-Based Information Retrieval and Extraction System for Biological Literature
We have developed Textpresso, a new text-mining system for scientific literature whose capabilities go far beyond those of a simple keyword search engine. Textpresso's two major elements are a collection of the full text of scientific articles split into individual sentences, and the implementation of categories of terms for which a database of articles and
Public Library of Science.