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Search Results: 1 - 10 of 76498 matches for " Barreto Maria Lucia "
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índice de exposi??o à sílica na atividade de minera??o de ouro
Carneiro,Ana Paula Scalia; Barreto,Sandhi Maria; Siqueira,Arminda Lucia; La Rocca,Poliana Freitas;
Revista de Saúde Pública , 2006, DOI: 10.1590/S0034-89102006000100014
Abstract: objective: to develop a cumulative silica exposure index, including time period, duration and intensity of exposure, and to test this index as for occurrence and severity of silicosis. methods: a cross-sectional study was carried out comprising 140 former gold miners from two localities in southeastern brazil between november 1997 and december 1999. complete data on occupational and medical histories, chest x-rays and spirometry were analyzed. borderline cases on the x-rays were also submitted to high-resolution chest computed tomography. the exposure index was the sum of scores obtained by logarithmic transformation of respirable silica concentration related to job tasks, mines and work time. parametric tests were used for comparing averages between the groups of interest. results: the silica exposure index was able to discriminate the main outcome (silicosis) as well as other outcomes (tuberculosis and lung emphysema) in the whole group at p-values of 0.008, 0.016 and <0.001 respectively. in regard to the four main categories of silicosis, the tukey test showed differences in the averages of the exposure index in the categories 0 and 3 and 1 and 3. however, in the borderline cases subgroup, the exposure index was not satisfactory for cases submitted to x-rays and tomography and it could not differentiate other outcomes. conclusions: the silica exposure index represents an advance in exposure evaluation of former miners. however, other information, such as clinical and lung functional data are needed for better understanding disease progress in silica exposed cases, especially among borderline cases.
In vitro behavior of Mycoplasmagallisepticum live-type nosode
M???′sar Lemos,Elmiro Rosendo do Nascimento,Maria Lucia Barreto,Virginia Leo de Almeida Pereira
International Journal of High Dilution Research , 2011,
Abstract: As a step of a doctoral research project, in this study a live-type nosode was prepared from microorganism Mycoplasmagallisepticum strain R (ATCC 93-08/19610) according to Costa model and the rules by Brazilian Homeopathic Pharmacopoeia. Live nosode was tested in vitro to assess safety when used to immunize domestic fowl (Gallus gallus) against infection by this microorganism and to investigate its behavior under laboratory conditions. M. gallisepticum was not shown to grow in fluid (broth) and solid (plate) modified Frey medium with dilutions 11d, 12d, 20d and 30d. Inhibition halos about 2.0 mm were observed around paper disks impregnated with live-type nosode in microorganism-sown Petri dishes, whereas disks impregnated with conventional antibiotic oxytetracycline exhibited 8.0 mm inhibition halos. Protein assessment by Folin-Lowry method showed protein absence in dilutions 12d and 30d and neither microbial DNA traces were found in PCR assay in dilutions 12d, 20d and 30d.
índice de exposi o à sílica na atividade de minera o de ouro
Carneiro Ana Paula Scalia,Barreto Sandhi Maria,Siqueira Arminda Lucia,La Rocca Poliana Freitas
Revista de Saúde Pública , 2006,
Abstract: OBJETIVO: Propor um índice que sintetize a exposi o cumulativa à sílica, incluindo intensidade, dura o e época da exposi o e testá-lo em rela o à presen a e gravidade de silicose. MéTODOS: Estudo transversal realizado com 140 ex-mineiros de ouro, residentes em duas localidades do Estado de Minas Gerais, examinados entre 11/1997 e 12/1999. Foram analisadas informa es sobre história clínica e ocupacional, radiografia de tórax e espirometria. Casos borderline de silicose pela radiografia foram submetidos à tomografia computadorizada de alta resolu o. O índice representa a soma dos escores extraídos da transforma o logarítmica das taxas de concentra o de sílica respirável nas diversas fun es, minas e períodos trabalhados. Foram aplicados testes paramétricos para compara o das médias entre os grupos de interesse. RESULTADOS: O índice proposto apresentou-se discriminativo em rela o ao desfecho principal (silicose) e aos desfechos secundários (enfisema e tuberculose) pulmonar no grupo total, incluindo os diversos estágios da doen a, com valores p: 0,008, 0,016 e <0,001 respectivamente. Em rela o às quatro categorias principais da silicose, o teste de Tukey evidenciou diferen as nas médias do índice entre as categorias 0 e 3 e 1 e 3. Porém, no subgrupo constituído pelos casos borderline, a discrimina o entre os desfechos n o foi satisfatória, tanto com diagnósticos obtidos pela radiografia quanto pela tomografia. CONCLUS ES: O índice proposto representa um avan o na síntese da exposi o ocupacional dos participantes, podendo ser usado para outras profiss es. Entretanto, torna-se importante a incorpora o de fatores clínicos e funcionais para entender a evolu o da doen a em expostos à sílica, especialmente nos casos duvidosos.
Biotechnological Potential of Endophytic Bacteria to Improve the Micropropagated Seedling of Variety RB92579 Sugarcane (Saccharum officinarum L.)  [PDF]
Maria do Carmo Silva Barreto, Márcia do Vale Barreto Figueiredo, Márcia Vanusa da Silva, Arnóbio Gon?alves de Andrade, José de Paula de Oliveira, Clébia Maria Alves Almeida, Livia Caroline Alexandre de Araújo, Odemar Vicente dos Reis Junior, Manoel Urbano Ferreira Junior, Antonio Félix da Costa, Vera Lucia de Menezes Lima
Advances in Microbiology (AiM) , 2018, DOI: 10.4236/aim.2018.811057
Abstract: Endophytic bacteria may influence agricultural production in several ways, including promoting plant growth. Two experiments were conducted in order to evaluate the combination of endophytic bacteria from the Brazilian Northeast region aims at the commercial introduction of the inoculation of these bacteria in micropropagated sugarcane plants using a temporary immersion bioreactor. One experiment was done in tubes with sterile commercial substrate, and the other was done in pots with soil; both were installed in a greenhouse. A mixed inoculation was performed in six inoculated endophytic diazotrophic bacteria in micropropagated sugarcane plants, variety RB92579. In the experiment with soil, the mixed inoculation significantly increased the shoot dry matter of plants without the addition of nitrogen fertilizer. However, the accumulation of total-N in the tissues showed no significant differences between treatments with and without nitrogen fertilization. The evaluation of micropropagated seedlings showed no increases in the parameters tested. The results showed that the response of inoculation in temporary immersion bioreactor micropropagation is possible, and that the application of homologous strains may have contributed to a better response by the interaction of endophytic bacteria with sugarcane RB92579. Further studies should be conducted to improve the methodology, which indicates a great potential to optimize this process on a commercial scale.
Detection of Mycoplasma pulmonis in laboratory rats
Barreto Maria Lucia,Nascimento Elmiro Rosendo do,Campos Carlos Augusto de Martino,Nascimento Maria da Gra?a Fichel do
Brazilian Journal of Microbiology , 2002,
Abstract: This work was conducted on rats in two premises located in Niterói and Rio de Janeiro, Brazil. One is classified as conventional controlled and the other, conventional. The objective of the present study was to detect the presence of Mycoplasma pulmonis in animals with symptoms of respiratory disease and low reproductive performance. In the conventional controlled premises, 16 rats of Wistar-Furth strain were necropsied while in the conventional premises necropsy was performed on 12 rats of Hooded Lister strain. The clinical samples of lungs, trachea, oropharynx, middle ear, uterus and ovaries were subjected to culturing while the sera were tested for antibody detection. From 28 rats, 57.14% (16/28) were culture positive for M. pulmonis, being 81.25% (13/16) from the conventional controlled premises, and 25.00% (3/12) from the conventional premises. The ELISA test was carried out in 20 animals of both colonies. In the conventional controlled premises, 92.86% (13/14) were positive for M. pulmonis, and 7.14% (1/14) were suspicious, while in the conventional premises, 100% (6/6) of the samples were positive. The results confirmed that M. pulmonis was the etiologic agent of the disease that affected the rats under study, and that the ELISA positivity rated higher than culture.
Evaluation of experimental Toxoplasma gondii (Nicolle and Manceaux, 1909) infection in pigs by bioassay in mice and polymerase chain reaction
Yai, Lucia Eiko Oishi;Vianna, Manoella Compostrini Barreto;Soares, Rodrigo Martins;Cortez, Adriana;Freire, Roberta Lemos;Richtznhain, Leonardo José;Gennari, Solange Maria;
Brazilian Journal of Veterinary Research and Animal Science , 2003, DOI: 10.1590/S1413-95962003000300010
Abstract: the aim of the present experiment was to standardize a nested polymerase chain reaction (npcr) for the detection of toxoplasma gondii in tissues of experimentally infected pigs and to compare the performance of npcr with the standard isolation technique, the bioassay in mice. comparison between the two methods was done testing eight 4 month-old pigs orally inoculated with 5 x 104 oocysts of toxoplasma gondii (as-28 strain) and three non-infected pigs at the same age, kept as control. all animals were euthanatized 47 days after infection and samples of brain, heart, tongue and retina were collected from each animal for analysis by npcr and bioassay in mice. by using the bioassay, toxoplasma gondii was detected in 4 infected pigs, being two in the retina, one in the heart and one in the tongue. toxoplasma gondii dna was detected in five of the inoculated pigs, being: three in the tongue, two in the brain and heart and one in retina. the detection threshold of the npcr on mouse brain suspension artificially infected with the rh strain of toxoplasma gondii was 10 tachyzoites/ml. although both techniques were unable to detect the parasite in all infected pigs, npcr showed better performance as it was accomplished in a shorter period of time. when used concurrently, both techniques detected the agent in seven infected animals. the only way to increase sensitivity of either method is to increase the amount of tissue to be examined.
International Fragmentation of Production and Trade Volatility: An Analysis for the European Countries  [PDF]
Anna Maria Falzoni, Lucia Tajoli
Modern Economy (ME) , 2015, DOI: 10.4236/me.2015.63032
Abstract: In the last years, world exports have displayed very strong fluctuations, much higher than GDP fluctuations. Some recent works tried to understand the causes of these fluctuations, and in particular if these strong swings in world trade flows are related to the growing weight of intermediates in trade and to the phenomenon of international fragmentation of production (IFP) or international outsourcing. This is the issue addressed in this paper. We analyze the influence of international fragmentation of production and trade in intermediate goods on the fluctuations of trade flows for the EU countries. After assessing the relevance of international trade in intermediate goods at the sector level using indices computed from the input-output tables of the EU countries, we test whether a significant relation exists between the extent of international fragmentation of production measured by this proxy and the volatility of trade flows, and the possible implications of these results.
Estudo preliminar do SISCOLO-Qualidade na rede de saúde pública de S?o Paulo
Maeda, Marina Yoshiê Sakamoto;di Loreto, Celso;Barreto, Elci;Cavaliere, Maria José;Utagawa, Maria Lucia;Sakai, Yuriko Ito;Corrêa, Romualdo Osório;Adura, Pekie Johanna Diaz;Marzola, Valéria de Oliveira;
Jornal Brasileiro de Patologia e Medicina Laboratorial , 2004, DOI: 10.1590/S1676-24442004000600011
Abstract: the aim of the present work was to analyses critically the preliminary results of the computerized quality system of gynecologycal cytology, implanted by the public health ministry of brazil - siscolo. cervicovaginal smears stained by the papanicolaou method were utilized. these smears were obtained through the diagnostic routine undertaken at the oncocentro foundation pathology laboratory of pathology, comprising cases of march 2000. such cases were rescreened in a blind study, by the staff of the pathology division of the sp adolpho lutz institute's cytology section. the siscolo-quality program selects, among all cases analyzed in the period, all such positive cases (ascus, agus, cin and carcinomas) and to complete 10% of all cases it selects all non-satisfying and negative cases at random. from the 8,370 cases selected in march 2000, the siscolo-quality program selected 837 samples. among the selected samples, 23,4% showed squamo-columnar junction material, 5% were considered non-satisfactory for diagnosis and 71.1%, satisfactory although limited. the rescreening analysis showed concordance in 86.62% of the cases, one grade discordance was observed in 12.42% and two or more grades discordance in 0.96% of the cases. we concluded that the siscolo-quality program has applicability in the health public system as external monitoring method and meets the health ministry's expectations.
Detection of Mycoplasma pulmonis in laboratory rats
Barreto, Maria Lucia;Nascimento, Elmiro Rosendo do;Campos, Carlos Augusto de Martino;Nascimento, Maria da Gra?a Fichel do;Lignon, Gilberto Brasil;Lira, Marie Luce Flores;Silva, Ricardo G.;
Brazilian Journal of Microbiology , 2002, DOI: 10.1590/S1517-83822002000300015
Abstract: this work was conducted on rats in two premises located in niterói and rio de janeiro, brazil. one is classified as conventional controlled and the other, conventional. the objective of the present study was to detect the presence of mycoplasma pulmonis in animals with symptoms of respiratory disease and low reproductive performance. in the conventional controlled premises, 16 rats of wistar-furth strain were necropsied while in the conventional premises necropsy was performed on 12 rats of hooded lister strain. the clinical samples of lungs, trachea, oropharynx, middle ear, uterus and ovaries were subjected to culturing while the sera were tested for antibody detection. from 28 rats, 57.14% (16/28) were culture positive for m. pulmonis, being 81.25% (13/16) from the conventional controlled premises, and 25.00% (3/12) from the conventional premises. the elisa test was carried out in 20 animals of both colonies. in the conventional controlled premises, 92.86% (13/14) were positive for m. pulmonis, and 7.14% (1/14) were suspicious, while in the conventional premises, 100% (6/6) of the samples were positive. the results confirmed that m. pulmonis was the etiologic agent of the disease that affected the rats under study, and that the elisa positivity rated higher than culture.
Habilidades sociais de estudantes de Psicologia: um estudo multicêntrico
Del Prette, Zilda Aparecida Pereira;Del Prette, Almir;Barreto, Maria Cecília Mendes;Bandeira, Marina;Rios-Salda?a, Maria Refugio;Ulian, Ana Lucia Alcantara Oliveira;Gerk-Carneiro, Eliane;Falcone, Eliane Mary de O.;Villa, Miriam Bratfisch;
Psicologia: Reflex?o e Crítica , 2004, DOI: 10.1590/S0102-79722004000300007
Abstract: social skills occurring in a high frequency and low variability can be taken as patterns, suggesting cultural or sub-cultural features which are important when selecting instruments for evaluation and planning interventions. this research aimed to characterize the social skills repertoire among psychology students from 4 brazilian places: s?o paulo (sp), bahia (ba), minas gerais (mg)e rio de janeiro (rj), also examining their differences and the influence of sex and age on their patterns. five hundred sixty four psychology undergraduates completed a self-report inventory (ihs-del-prette) with a structure of 5 factors: f1) coping and assertion; f2) expressing positive affection; f3) talking and self-confidence; f4) dealing with unknown people and new situations; f5) aggressiveness self-control. the samples were compared considering general (gs) and factorial (f1, f2, f3, f4 e f5) scores as well as sex and age influence in each one (anova, followed by t or scheffé test). the results showed that: a) psychology students presented higher scores than normative sample in the gs, f1, f3 and f4 and lower in the f2 and f5, but sex differences were similar to the normative pattern; b) place, sex and age significantly affected the scores, with place-sex and place-age interactions; c) samples from mg, ba, rj and sp presented similar profiles, with higher values for rj in the f1 and for mg and sp in the f2 and f5; d) students from ba presented the highest sex differences and from rj the lowest ones; e) age differences occurred in the f4 (favorable to younger students for sp) and in the f5 (favorable to older ones for ba and rj). the meaning of these differences and similarities are discussed as well as some explanatory hypotheses and questions for further studies.
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