oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2020 ( 38 )

2019 ( 231 )

2018 ( 340 )

2017 ( 361 )

Custom range...

Search Results: 1 - 10 of 209640 matches for " Ivana Menezes Silva de Barros "
All listed articles are free for downloading (OA Articles)
Page 1 /209640
Display every page Item
MORFOANATOMIA DE Ricinus communis L. (Euphorbiaceae) EXPOSTAS A ESTRESSE SALINO
Marilaine Alves de Oliveira,Ivana Menezes Silva de Barros,Pedro Mazzocco Pereira,Wendel Mattos Pompilho
Perspectivas Online : Biológicas e Saúde , 2012,
Abstract: A mamoneira é uma planta da família Euphorbiacea e encontra-se amplamente distribuída em todo oterritório brasileiro, onde se adaptou com grande facilidade. Sua capacidade de adapta o a variadascondi es e sua resistência ao déficit hídrico, permitem seu desenvolvimento em solos pouco férteis e emcondi es adversas para a maior parte das plantas. Sua cultura é considerada bastante rústica, no entanto, ésensível às características físicas e químicas do solo como granulometria, pH e presen a de sais. Nestecontexto, o objetivo desse trabalho foi caracterizar as altera es morfoanat micas apresentadas por plantasde Ricinus communis L., cultivar Mirante 10, expostas a estresse salino. Para tanto, as sementes foram postaspara germinar em dois substratos, areia e terra, contendo diferentes concentra es de sal. Os parametrosavaliados foram o comprimento das plantulas, percentual de matéria seca, área foliar e densidade estomática.Os dados anat micos foram obtidos através de cortes à m o livre de caule, folha e raiz, clarificados,observados e fotografados em microscópio óptico com camera digital acoplada. Os resultados mostraram queas plantas de Ricinus communis L. respondem de forma diferenciada aos níveis salinos e substratos, comrespostas mais fortes encontradas nas mudan as anat micas, principalmente nos tecidos radiculares. Os doissubstratos testados influenciaram diretamente na emergência e estabelecimento destas plantas à condi o desalinidade do solo.
Teste de condutividade elétrica em sementes de gergelim
Torres, Salvador Barros;Medeiros, Maria Aparecida de;Tosta, Mauro da Silva;Costa, Gleider Maria de Menezes;
Revista Brasileira de Sementes , 2009, DOI: 10.1590/S0101-31222009000300008
Abstract: the electrical conductivity test, initially developed for pea seeds, has been intensively used to evaluate seed vigor of several plant species. the objective of the present study was to establish methodology for the electrical conductivity test in sesame (sesamum indicum l.) seeds, involving periods of seed imbibition, water volume and temperatures. in two stages of the study, four seed lots, cv. preta, were evaluated by the germination test, first germination count, emergence speed, seedling shoot dry matter, seedling shoot length and field emergence, as well seed moisture content determination. for the electrical conductivity test, variations in water volume (25, 50 and 75 ml) or temperature (20, 25 and 30oc) and in imbibition period (1, 2, 4, 8, 12, 16 and 24 hours) were studied. the electrical conductivity test was efficient for the evaluation of sesame seed physiological potential and the association of 50 seeds, 50 ml distilled water and 8 hours imbibition at 25oc was the most adequate.
Impacts of Residual Phosphorus on the Production of Cowpea in the Cerrado Region  [PDF]
Jair da Costa Gaspar, Marileia Barros Furtado, Welder José dos Santos Silva, Isaías dos Santos Reis, Nítalo André Farias Machado, Maryzélia Furtado de Farias, Jomar Livramento Barros Furtado, Hosana Aguiar Freitas de Andrade, Raquel da Silva Sobral, Luisa Julieth Parra-Serrano, Khalil de Menezes Rodrigues, Raissa Rachel Salustriano Silva-Matos
American Journal of Plant Sciences (AJPS) , 2018, DOI: 10.4236/ajps.2018.94051
Abstract: Phosphate fertilizers when applied to the soil, besides being harvested by the crops, promote a residual effect that can be offered to subsequent crops. The objective of this research was to evaluate the residual effect of phosphate fertilization applied to maize cultivation on the successor crop, cowpea, in the Cerrado region in Maranhao. The research was carried out in the experimental area of Federal University of Maranhao (UFMA), located in the city of Chapadinha, MA (3°44'30\"S, 43°21'37''W). The experimental design was in randomized blocks, with six treatments and four replications. The treatments were composed of the following residual P doses: 0, 60, 70, 80, 90, 100 kg·ha-1 of P2O5. The cultivation of cowpea (cultivar BRS guariba) was sown at a spacing of 1.0 × 0.20 m. The cowpea proved to be efficient in the use of residual phosphate fertilization, since it promoted grain yield close to the national average. The cultivation of cowpea in previously cultivated areas is feasible, in order to take advantage of the residual phosphate fertilization in the Cerrado of East of Maranhao. The phosphorus dose applied in the predecessor crop corresponding to 80 kg·ha-1 of P2O5 promoted higher grain yield (393.44 Mg·ha-1) and a greater profit margin (US $326.26). Thus, it is feasible to grow cowpea in previously cultivated areas, in order to take advantage of residual phosphate fertilization.
PERSONAL VALUES OF WOMEN ENTREPRENEURS: APPLICATION OF THE LOV SCALE DOI: 10.5585/remark.v9i3.2181 VALORES PESSOAIS DAS MULHERES EMPRESáRIAS: APLICA O DA ESCALA LOV DOI: 10.5585/remark.v9i3.2181
Ivana Carneiro Almeida,Luiz Henrique de Barros Vilas Boas,Ricardo de Souza Sette,Alessandro Silva de Oliveira
REMark : Revista Brasileira de Marketing , 2010, DOI: 10.5585/remark.v9i3.2181
Abstract: The role of personal values as standards or criteria influencing the choices of individuals suggests the relationship of values to behavior. Based on this understanding, the concept of human values has been under the spotlight in the social sciences so as to understand various issues, such as the use of media, religious and political behavior, preferences and consumer behavior. Based on this perspective, this study aims to analyze the values of women entrepreneurs based on Kahle’s (et al., 1986) List of Values (LOV) scale. The scale was administered to a sample of entrepreneurs, all women, and demonstrated that the values "Fun," "Sense of accomplishment" and "Self Respect" had higher means. Through an analysis of the principal components, three dimensions of this scale could be extracted: "Individual Values" and "Collective Values", since the "Sense of Accomplishment" value was identified as most important by the majority of women. Therefore, the group of women entrepreneurs assigned varying degrees of significance concerned with personal values as behavioral guides in their lives. O papel dos valores pessoais como padr es ou critérios que influenciam as escolhas dos indivíduos sugere o relacionamento dos valores com o comportamento. Com base neste entendimento, o conceito de valores humanos tem sido utilizado nas ciências sociais para entender diversos assuntos como o uso de mídia, comportamento religioso e político, as preferências e o comportamento do consumidor. Baseado nesta perspectiva, este estudo tem como objetivo analisar os valores das mulheres empresárias tendo como base a escala List of Values – LOV (Kahle et al., 1986). A administra o da escala a uma amostra de mulheres empresárias permitiu verificar que os valores “Divers o”, “Sentido de realiza o” e “Respeito Próprio” foram aqueles que mereceram classifica es mais altas. Através da analise de componentes principais extraíram três dimens es da escala: “Valores individuais” e “Valores Coletivos”. Sendo que o valor “Senso de Realiza o” a maioria das mulheres identifica como o muito importante. Portanto, o grupo de mulheres empresárias atribuiu diferentes graus de importancia aos valores pessoais como guias de conduta em suas vidas.
Fonoaudiologia X ronco/apneia do sono
Soares, Elisangela Barros;Pires, Joicy Barbalho;Menezes, Michele de Alicrim;Santana, Suzany Karla Silva de;Fraga, Juliana;
Revista CEFAC , 2010, DOI: 10.1590/S1516-18462010000200019
Abstract: background: sleeping is necessary to provide us with energy. however, snoring and sleep apnea become obstacles that cause not only health problems, but also social, marital and educational issues. purpose: contribute with a better understanding of the causes to the speech therapist, as well as the diagnosis and forms of treatment for obstructive sleep apnea (osa). facilitate the definition of conduct by the therapist, be it a guide for a diagnosis, a treatment for that disease (through speech therapy) or the indication of medical treatment (surgical or conservative). conclusion: some possible speech pathologies found in these patients are: enlarged tongue presenting hypotonia, soft palate with increased volume, difficulty in feeding due to insufficient intake of air and bruxism, possibly caused by tension and anxiety of bad night's sleep. other changes can be found due to surgical treatment used in some cases, such as dysphagia or even alterations in speech and resonance of speech caused by an uvulopalatoplasty. the focus of speech therapy is the myotherapy of the involved muscles, prioritizing the palatal muscles. it is perceived that the speech therapists can help to ease the symptoms found in these diseases, providing a better life quality for their patients.
Avalia??o do processamento auditivo na Neurofibromatose tipo 1
Batista, Pollyanna Barros;Silva, Carla Menezes da;Valentim, Hellen de Oliveira;Rodrigues, Luiz Oswaldo Carneiro;Rezende, Nilton Alves de;
Revista da Sociedade Brasileira de Fonoaudiologia , 2010, DOI: 10.1590/S1516-80342010000400022
Abstract: the aim of this study was to present the results obtained in the auditory processing evaluation of a patient with neurofibromatosis type 1. although the patient presented normal peripheral hearing, auditory processing deficits were identified in several abilities. this finding, described for the first time in neurofibromatosis, might help to explain the cognitive and learning disabilities broadly described for this common genetic disorder.
Ganho de peso e características de carca?a de bovinos Nelore castrados ou n?o-castrados terminados em confinamento
Silva, Fredson Vieira e;Rocha Júnior, Vicente Ribeiro;Barros, Ricardo Carvalho de;Pires, Daniel Ananias de Assis;Menezes, Gustavo Chamon de Castro;Caldeira, Luciana Albuquerque;
Revista Brasileira de Zootecnia , 2008, DOI: 10.1590/S1516-35982008001200018
Abstract: the objective of this work was to evaluate weight gain and carcass characteristics nellore cattle, castrated or non-castrated, finished in confinement. it was used thirty six animals with 24 months old and initial 445.30 kg bw (non-castrated) or 449.57 kg bw (castrated at 400 kg bw). the animals were slaughtered at 50 days of confinement, when reached 516.30 kg bw (non-castrated) and 506.86 kg bw (castrated). non-castrated animals did not have an increase in final bw, but showed higher weight gain (1.42 and 1.15 kg). hot carcass weight (272.77 and 261.89 kg) and cold carcass weight (266.13 and 258.24 kg) did not differ between non-castrated and castrated animals. non-castrated animals showed higher hot carcass yield (52.88 vs. 51.65%) however, cold carcass yield was similar between groups (51.55 and 52.39%), due to smaller chilling loss in castrated animals (2.43 vs. 1.40%). special hindquarter absolute weights (133.07 and 131.55 kg), forequarter (105.65 and 100.09 kg) and spare ribs (27.41 and 26.60 kg) did not differ between non-castrated and castrated animals. forequarter relative values castrated animals were higher than the non-castrated (50.93 versus 50.00%). the striploin of non-castrated animals was heavier than that of castrated (8.41 vs. 7.90 kg). fat thickness (2.05 vs. 2.21 mm) and loin eye area (66.98 versus 67.48 cm2) did not differ between non-castrated and castrated animals. cold carcass ph in predetermined time until setting of rigor mortis is also similar between and non-castrated and castrated animals. non-castrated and castrated animals have satisfactory carcass weight, but have not fat thickness less than 3 mm, when confined for 50 days with diet based on sugar cane and concentrate. to match the fat thickness, the diet of the animals must be balanced with higher energy level.
In vivo evaluation of therapeutic potential of fluoride varnishes
Silva, Rúbia Menêses da;Ferreira, Jainara Maria Soares;Silva, Cely Dayana Barros da;Fontes, Luciana de Barros Correia;Granville-Garcia, Ana Flávia;Menezes, Valdenice Aparecida de;
Revista Odonto Ciência , 2012, DOI: 10.1590/S1980-65232012000300011
Abstract: purpose: to perform an in vivo evaluation of the therapeutic effect of two fluoride varnishes on the remineralization of active white spot lesions (wsls). methods: children aged 7 to 10 years old (n=20) with 56 active wsls in the anterior permanent teeth were submitted to four weekly applications of fluoride products: g1 - fluorphat? (n=28) or g2 - duraphat? (n=28). wsls were evaluated with regard to diameter and activity. data were analyzed by descriptive and inferential statistics (student's t and chi-square tests), with the significance level set to 5%. results: at the end of the study, g1 had nine active and 19 inactive wsls and g2 had seven and 21 inactive wsls. no difference in mean wsl size was found between g1 (4.37 mm) and g2 (4.76 mm) (p>0.05). in the intragroup analysis, significant differences were found between the initial and final wsl size in both g1 (from 4.37 mm 2.97 mm) and g2 (>4.76 mm to 3.78 mm). conclusion: the two products tested demonstrated similar clinical efficacy regarding the remineralization of active wsls after four weeks of fluoride therapy.
Plasma zinc and hair zinc levels, anthropometric status and food intake of children in a rural area of Brazil
Beinner, Mark Anthony;Menezes, Maria ?ngela de Barros Correia;Silva, Jose Bento Borba da;Amorim, Flavia Regina de;Jansen, Ann Kristine;Lamounier, Joel Alves;
Revista de Nutri??o , 2010, DOI: 10.1590/S1415-52732010000100009
Abstract: objective: the objective of this study was to investigate the levels of plasma zinc, hair zinc, growth and food consumption in children aged 6 to 24 months in a rural area of diamantina (mg), brazil. methods: plasma and hair zinc concentrations were analyzed using flame atomic absorption spectrometry and neutron activation analysis, respectively. weight-for-age, weight-for-height and height-for-age, expressed as z-scores, were measured according to the world health organization reference curves. dietary zinc intake was determined by a 3-day dietary recall filled out by the mother or guardian. results: zinc deficiency was found in 11.2% and 16.8% of the children according to plasma zinc e hair zinc levels, respectively. mean plasma zinc and hair zinc for children <11 (49) and >11 (127) months of age were 15.4 (sd=4.2) μmol l-1 and 139.5 (sd=72.1) μg g-1 and 16.0 (sd=4.5) μmol l-1 and 134.3 (sd=110.3) μg g-1, respectively. anthropometric measurements showed that 8.0%, 6.8% and 3.4% of the children were underweight, stunted and wasted, respectively. the mean dietary intake of zinc was 3.2 (sd=2.3) mg/day. one-third of the children did not eat enough foods that contain zinc. there were no correlations among plasma zinc level, hair zinc level, anthropometric parameters and zinc intake. concluion: the results demonstrate that zinc deficiency is a problem in the studied population, not just in malnourished children. nutritional care should be provided for this population in order to improve their consumption of high-zinc foods and monitor zinc deficiency.
Normaliza??o dos níveis séricos de ácido ascórbico por suplementa??o com suco de acerola (Malpighia glabra L.) ou farmacológica em idosos institucionalizados
Aranha, Flávia Queiroga;Moura, Luiza S?nia Asciutti;Sim?es, M?nica Oliveira da Silva;Barros, Zianne Farias;Quirino, Ivana Versianny Lira;Metri, Juliana Cavalcanti;Barros, Jefferson Carneiro de;
Revista de Nutri??o , 2004, DOI: 10.1590/S1415-52732004000300004
Abstract: introduction: thirty-seven elderly citizens, deficient in vitamin c and institutionalized in the city of jo?o pessoa/paraíba/brazil, were studied with the objective of investigating the period of vitamin c supplementation necessary to normalize their blood serum levels. methods: the study also compared the efficiency of the natural vitamin, supplied in the form of west indian cherry juice, (malpighia glabra l.) to that of the pharmaceutical product (tablets). the aged citizens were divided into 3 groups: group i - control, group ii - supplemented with west indian cherry juice, and group iii - supplemented with tablets. the methodology applied consisted of dosing the serum vitamin c levels and making a dietary enquiry to determine food consumption. results: a significant increase (p<0.05) in the mean serum ascorbic acid levels was shown after 10 (1.27±0.41mg/dl), 20 (1.69±0.45mg/dl) and 30 (1.55±0.42mg/dl) days of supplementation, as compared to the initial values (0.38±0.28mg/dl). on the 10th day of supplementation, those supplemented with west indian cherry juice showed levels significantly higher (1.41±0.43mg/dl) than those supplemented with tablets (1.03±0.25mg/dl). conclusion: on the 20th day, the supplementation had satisfactorily normalized the blood serum levels of the institutionalized aged citizens. therefore, this amount of time could be considered as the necessary supplementation period for the aged in general. moreover, especially, for those who live in institutions with limited resources, west indian cherry juice should be the supplement of choice, since it is a natural and affordable product.
Page 1 /209640
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.