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Search Results: 1 - 10 of 620563 matches for " ELAINE S. N. NABUCO DE ARAúJO "
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CONCEPCIONES DE FUTUROS PROFESORES DE BIOLOGIA, BRASILEROS Y PORTUGUESES SOBRE VALORES ETICOS DE LA CIENCIA
PALOMA RODRIGUES DA SILVA,ELAINE S. N. NABUCO DE ARAúJO,GRA?A SIM?ES DE CARVALHO,ANA MARIA DE ANDRADE CALDEIRA
Gondola : Ense?anza y Aprendizaje de las Ciencias , 2011,
Abstract: One of the science education objective, based on relationships between science, technology, society and environment (STSE) is, to form citizens capable on evaluating and taking decisions about the scientific advances impact on society and environment. In a two-way perspective, understand relationships between STSE, provides a vision of science as a human construction and therefore fallible, changeable and not neutral. In this study, we present some results from a comparative study on the influence of ethical conceptions of the nature of science, in two groups of future biology teachers, one from Brazil and, another one from Portugal. For data collection we constructed an attitude scale of Likert-type, which was validated mathematically and semantically. Results shows strong influence of social values, as in transgenic products, where the students’ ideas varied according to the ethical discussions more present in each country.
Effect of organic tomato ( Lycopersicon esculentum ) extract on the genotoxicity of doxorubicin in the Drosophila wing spot test
Dutra, Elaine S.;Dias, Cristina D.;Araújo, Bethania C. de;Castro, Ant?nio J. S.;Nepomuceno, Júlio C.;
Genetics and Molecular Biology , 2009, DOI: 10.1590/S1415-47572009005000008
Abstract: keywords : antioxidants; co-genotoxicity; drosophila melanogaster; organic tomato; smart.
Goniometria dos membros pélvicos de pacas (Cuniculus paca) criadas em cativeiro
Araújo, Fábio André Pinheiro de;Rahal, Sheila Canevese;Machado, Márcia Rita F.;Teixeira, Carlos Roberto;Lorena, Silvia Elaine R. de Sá;Barbosa, Luciano;
Pesquisa Veterinária Brasileira , 2009, DOI: 10.1590/S0100-736X2009001200009
Abstract: the aim of this study was to evaluate by goniometry the hind limbs of pacas raised in captivity. eight mature pacas (cuniculus paca), three females and five males, weighing 6.0-8.2 kg, were used. the quantity of joint flexion and extension motion of the hip joint, stifle joint and tarsocrural joint was measured using a plastic standard goniometer. under dissociative anesthesia, two measures were made for each member in each animal by the same observer at an interval of one week. there were no statistical differences of the quantity of joint motion between the moments. the flexion and extension angles varied from 1o to 5o in each moment for the same observer. the mean values of the angles of flexion and extension were, respectively, 43.96o±7.62 and 118.31o±9.79 for hip joint, 54.25o±10.24 and 131.53o±7.89 for stifle joint, and 45.94o±7.16 and 145.03o±5.06 for tarsocrural joint. thus, it was observed that the range of motion of the pacas is greater in the tarsocrural joint, followed respectively by stifle and hip joints.
Efeito do tempo de conserva??o dos espécimes sobre a qualidade dos microincrementos em otólitos sagittae de Anchoa tricolor (Agassiz) (Clupeiformes, Engraulidae)
Santos, Joaquim N. de S.;Silva, Marcio de A.;Vasconcellos, Ruan M.;Araújo, Francisco G.;
Revista Brasileira de Zoologia , 2005, DOI: 10.1590/S0101-81752005000400022
Abstract: we compared the number of microstructure of anchoa tricolor (agassiz, 1829) post-larvae sagittae otoliths in specimens fixed in formalin 10% in different periods of conservation (four days versus four years). significant differences were found in the number of microstructure for post-larvae ranging from 20-26 mm total length (tl), with averages of 18.6 microstructures (± 0.75 standard error) for fishes preserved for four years, and 35.3 microstructures (± 1.28 standard error) for fishes preserved for four days. therefore, the number of post-larvae otoliths microstructure preserved for long periods can not be suitable to infer age or growth rates. additionally, we failed in detecting and extracting otoliths in post-larvae smaller than 20 mm tl preserved due to its comparatively higher organic matter composition, mainly during the early life cycle.
Sentimentos dos familiares em rela??o ao paciente internado na unidade de terapia intensiva
Almeida, Andreza Santos;Arag?o, Neylor Rodrigo Oliveira;Moura, Elaine;Lima, Gabriela de Carvalho;Hora, Edilene Curvelo;Silva, Lausimary Araújo S?o Mateus;
Revista Brasileira de Enfermagem , 2009, DOI: 10.1590/S0034-71672009000600007
Abstract: this is a study with qualitative approach focusing on the relatives' feelings related to the patient who is admitted in intensive care unity. twenty-four relatives were interviewed in a public hospital in aracaju, se, brazil between july and august, 2007. the information was collected through an interview and evaluated according to content analysis. the results showed the following feelings: anxiety; worry; anguish and sadness; powerless; pain and sorrow; lost; fear and panic; stress; trust and security; insecurity; faith and hope and unexplainable feelings. anxiety was the most common one and was related to the strange environment, the diversified procedures, fear of what will happen tomorrow and expectations of their relatives to get better.
Determina o do número de bolores e leveduras no queijo Minas comercializado na regi o metropolitana de Salvador - Bahia
W. N. de Araújo,M. H. Silva,T. C. N. Martinez,S. L. B. Barros
Revista Brasileira de Saúde e Produ??o Animal , 2005,
Abstract: RESUMO: O leite conceituado como um alimento saud vel. Entretanto, necess rio um bom controle de qualidade para que seja um alimento indicado como primordial sa ode humana. A produtividade na ind ostria de queijos somente alcan §ada atrav s da qualidade tecnol 3gica da racionaliza § £o das etapas de fabrica § £o. Consider veis perdas s £o causadas por produtos deteriorados por interm dio de crescimento de fungos indesej veis. Foram realizadas seis coletas, perfazendo 24 (75%) amostras de queijo Minas frescal analisadas de sete diferentes marcas, sendo oito (33,33%) representando a marca B, cinco (20,83%) a marca C, quatro (16,66%) a marca D, tr as (12,50%) a marca E, duas (8,33%) a marca F, uma (4,16%) a marca G e uma (4,16%) a marca H, enquanto foram coletadas e analisadas seis (25%) amostras de queijo Minas padr £o, em tr as diferentes marcas perfazendo tres (50%) amostras da marca A1, duas (33,33%) da marca A2 e uma (16,66% da marca A3, realizadas dilui § μes e semeadas em gar batata dextrose em placas de petri , com pH= 3,5 (solu § £o est ril de cido tart rico a 10%) e incubadas a 21o C em estufa B.O. D por 05 dias. Das seis amostras de queijo Minas padr £o analisadas uma (16,66%) amostra apresentou 1,42 X 103 de bolores e leveduras (UFC/g), outrossim, das 24 amostras de queijo Minas frescal das sete diferentes marcas pesquisadas 18 (75%) apresentaram-se, em m dia, com n -veis de bolores e leveduras significativos, igual e/ou acima de 102 , o que denota processamento e armazenamento inadequados. Nas amostras analisadas provenientes do com rcio da regi £o metropolitana de Salvador foram encontrados exemplares de queijo Minas em condi § μes impr 3prias para o consumo, j que o n omero de bolores e leveduras foram significativos e comuns, podendo ent £o, vir a provocar problemas de sa ode p oblica, sendo um risco a sa ode humana. PALAVRAS CHAVE: Queijo, qualidade, colores e leveduras SUMMARY: The milk is esteemed as a salutary food. However, It ′s necessary a good quality control to this food may be a food indicated as primordial for human health. Productivity in the industry of cheese only is achieved through technological quality and rationalization of the manufacture stage. Considerable prejudice are motivated for deteriorated products due to undesidered molds growth. Six collect were accomplished, an total of 24 (75%) samples of " Minas frescal" cheese were analyzed of seven differents marks, eight (33,33%) of the mark B, five (20,83%) of the mark C, four (16,66%) of the mark D, three (12,50%) of the mark E, two (8,33%) of
Nível de press?o sonora em Unidade de Terapia Intensiva Neonatal
Peixoto, Priscila Vendramini;Araújo, Marco Ant?nio Nabuco de;Kakehashi, Tereza Yoshiko;Pinheiro, Eliana Moreira;
Revista da Escola de Enfermagem da USP , 2011, DOI: 10.1590/S0080-62342011000600005
Abstract: the objectives of the study were to assess sound pressure level (spl) in two rooms of a neonatal intensive care unit (nicu) and to identify their sources. this quantitative-descriptive study was conducted in two rooms of a nicu of a university hospital in s?o paulo, brazil. three dosimeters were used to register spl (total of 261 hours). a 48-hour register of noise sources was obtained. the results showed high spl in both rooms. the greatest mean leq were 71.0 dba (room a) and 68.0 dba (room b). main noise sources in both units were: nicu hallway noise, traffic and conversation among professionals. the results indicate that spls in nicu rooms are higher than the levels recommended by regulatory agencies. a guideline was developed and an educational program was implemented as a means to reduce sound pressure levels.
Embolia de shunt carotídeo temporário para a artéria poplítea
Nóbrega, Leonardo Pires de Sá;Ribeiro, Alcides José Araújo;Kalume, Cláudio Eluan;
Jornal Vascular Brasileiro , 2011, DOI: 10.1590/S1677-54492011000400014
Abstract: the displacement of a shunt to a more distal arterial branch, along a path, is a rare complication. vascular ultrasound can be presented as an excellent diagnostic modality for identifying the site of embolization of intravascular foreign bodies. the authors report a rare case of temporary shunt migration, implanted in the left common carotid artery, to left popliteal artery. the authors also describe the use of arterial vascular ultrasound to find the point of embolization, with an exact dermatography, that was essential to an easily surgical approach through a restrict and precise access way.
Nucleotide diversity of a major carotenoid biosynthetic pathway gene in wild and cultivated Solanum (Section Lycopersicon) species
Araújo, Ana H.;Fonseca, Maria Esther de N.;Boiteux, Leonardo S.;
Brazilian Journal of Plant Physiology , 2007, DOI: 10.1590/S1677-04202007000300007
Abstract: a polymerase chain reaction (pcr)-based approach was employed to isolate putative alleles of the chromoplast-specific lycopene beta-cyclase (cycb) gene from wild and cultivated tomatoes [solanum (section lycopersicon)]. the objective of this work was to establish an effective pcr protocol by testing dna samples from distinct germplasm accessions with a primer pair designed to selectively target conserved regions present in the available cycb sequences. this pcr optimization allowed the amplification of 1219 out 1666 bp of the gene in six taxa: s. cheesmaniae, s. peruvianum, s. neorickii, s. pennellii, s. pimpinellifolium and s. lycopersicum. sixty-three mutation sites (31 transitions, 18 transversions and 14 single base deletions/insertions) were detected in these accessions when compared to s. lycopersicum af 254793 (used as reference sequence). the polymorphisms were found predominantly in green-fruited species (20 in s. neorickii, 20 in s. peruvianum, and 32 in s. pennellii). lower levels of polymorphisms were found in yellow-fruited (three in s. cheesmaniae) and red-fruited species (eight in s. pimpinellifolium and none in the s. lycopersicum). the higher levels of nucleotide diversity in the cycb-like gene sequences in accessions of green-fruited species as well as the phylogenetic tree agreed with the previous taxonomic studies based upon the granule-bound starch synthase gene phylogeny. sequence analyses of the amplicons obtained via heterologous pcr indicated the cycb gene-specificity of the primers. therefore, this pcr-based strategy might be useful to isolate cycb-like amplicons from other species within the genus solanum and to develop molecular markers for assisted breeding.
Prepara??o de argilas organofílicas e desenvolvimento de nanocompósitos de polietileno. Parte 2: comportamento de inflamabilidade
Barbosa, Renata;Araújo, Edcleide M.;Melo, Tomás J. A. de;Ito, Edson N.;
Polímeros , 2007, DOI: 10.1590/S0104-14282007000200009
Abstract: high density polyethylene/bentonite clay nanocomposites were prepared by the melt intercalation technique. the clay was organically modified with different quaternary ammonium salts to obtain the organoclay. the unmodified and modified clays with the quaternary ammonium salts were introduced in a polyethylene matrix with 1 and 3 wt. % of clay. the thermal stability and the flammability of the systems were investigated by thermogravimetry and ul-94hb standard, respectively. the dispersion analysis and the interlayer distance (d001) of the clay particles were obtained by x ray diffraction (xrd) and transmission electron microscopy (tem). the organoclay presence in the polymer matrix increased the degradation temperature in relation to the pure polymer. the systems showed a reduction on the burning rate, indicating that the flammability resistance of the nanocomposites was improved.
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