Abde
Mostrando 1-10 de 10 artigos, teses e dissertações.
-
1. Intelectualidade brasileira em tempos de Guerra Fria: agenda cultural, revistas e engajamento comunista / Brazilian intellectuals in Cold War times: cultural agenda, magazines and Communist engagement
O presente estudo propõe-se a investigar a agenda cultural dos intelectuais comunistas brasileiros nas décadas de 1940 e 1950, período em que o mundo viveu um rearranjo de forças politicas, econômicas e militares com o início da Guerra Fria. O embate entre as duas potências antagônicas Estados Unidos e União Soviética - também se deu no campo ideo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/08/2012
-
2. Associação Brasileira de Escritores: dinâmica de uma disputa
Em 1942 foi fundada a Associação Brasileira de Escritores com a proposta de regulamentar questões específicas do ofício de escritor, porém o momento político de sua criação e o caráter das preocupações destes escritores sublinhavam a questão política refletindo, especialmente, sobre o papel do escritor no mundo contemporâneo. Um momento centra
Varia Historia. Publicado em: 2011-12
-
3. O Primeiro Congresso Brasileiro de Escritores: movimento intelectual contra o Estado Novo (1945) / The First Brazilian Congress of Writers: intellectual movement against the Estado Novo (1945).
This study is aimed to review the First Brazilian Congress of Writers, held in Sao Paulo, between 22 and 27 January 1945 at the initiative of the Brazilian Association of Writers (ABDE). Enshrined in the historiography as a movement of the intellectual community to promote democracy in opened opposition to the Estado Novo of Getúlio Vargas, this event will
Publicado em: 2010
-
4. Secreted Effector Proteins of Salmonella enterica Serotype Typhimurium Elicit Host-Specific Chemokine Profiles in Animal Models of Typhoid Fever and Enterocolitis
Infection of bovine ligated loops with the Salmonella enterica serotype Typhimurium wild type but not a sipA sopABDE2 mutant resulted in fluid accumulation, polymorphonuclear cell infiltration, and expression of CXC chemokines, particularly GROα. None of these sipA sopABDE2-dependent responses was observed in murine-ligated loops. The majority of GROα tran
American Society for Microbiology.
-
5. SipA, SopA, SopB, SopD, and SopE2 Contribute to Salmonella enterica Serotype Typhimurium Invasion of Epithelial Cells
The centisome 63 type III secretion system (T3SS-1) encoded by Salmonella pathogenicity island 1 (SPI1) mediates invasion of epithelial cells by Salmonella enterica serotype Typhimurium. Characterization of mutants lacking individual genes has revealed that T3SS-1 secreted proteins (effectors) SopE2 and SopB are required for invasion while the SipA protein a
American Society for Microbiology.
-
6. The Salmonella enterica Serotype Typhimurium Effector Proteins SipA, SopA, SopB, SopD, and SopE2 Act in Concert To Induce Diarrhea in Calves
Salmonella enterica serotype Typhimurium requires a functional type III secretion system encoded by Salmonella pathogenicity island 1 (SPI1) to cause diarrhea. We investigated the role of genes encoding secreted target proteins of the SPI1-associated type III secretion system for enteropathogenicity in calves. Salmonella serotype Typhimurium strains having m
American Society for Microbiology.
-
7. Isolation and partial characterization of an argR mutant of Salmonella typhimurium.
An arginine regulatory mutant (i.e., mutated in the argR gene) has been isolated from a strain of Salmonella typhimurium LT2. The argR mutant was found to excrete arginine into the growth medium with glycerol but not glucose as carbon source. Constitutive synthesis of arginine biosynthetic enzymes was observed. Whereas previous results (A. T. Abd-E1-A1 and J
-
8. Virulence dependent and independent regulation of the Bordetella pertussis cya operon.
The Bordetella pertussis adenylate cyclase (cya) operon is composed of four open reading frames, cyaA, B, D and E (Glaser et al., 1988, EMBO J., 7, 3997-4004). The cyaA gene encodes a virulence factor, cyclolysin, a bifunctional protein exhibiting both adenylate cyclase and haemolytic activities while the cyaB, D and E gene products are necessary for cycloly
-
9. Identification and Characterization of Genes Required for Biosynthesis and Transport of the Siderophore Vibrioferrin in Vibrio parahaemolyticus
In response to low iron availability, Vibrio parahaemolyticus synthesizes and secretes a polyhydroxycarboxylate-type siderophore vibrioferrin which is composed of 1 mol each of 2-ketoglutaric acid, l-alanine, ethanolamine, and citric acid. We have previously reported the cloning and characterization of the pvuA gene, which encodes the 78-kDa outer membrane r
American Society for Microbiology.
-
10. Transformation of Isopropylamine to l-Alaninol by Pseudomonas sp. Strain KIE171 Involves N-Glutamylated Intermediates
Pseudomonas sp. strain KIE171 was able to grow with isopropylamine or l-alaninol [S-(+)-2-amino-1-propanol] as the sole carbon source, but not with d-alaninol. To investigate the hypothesis that l-alaninol is an intermediate in the degradation of isopropylamine, two mini-Tn5 mutants unable to utilize both isopropylamine and l-alaninol were isolated. Whereas
American Society for Microbiology.