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Search Results: 1 - 10 of 109056 matches for " Andréia Cristina Peres Rodrigues da Costa "
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Effect of herbicides on desiccation of Lolium multiflorum L. plants and seed germination Efeito de herbicidas na desseca o e germina o de sementes remanescentes de Lolium multiflorum L.
Caio Ferraz de Campos,Dagoberto Martins,Andréia Cristina Peres Rodrigues da Costa,Maria Renata Rocha Pereira
Semina : Ciências Agrárias , 2012,
Abstract: A trial was carried out to evaluate efficacy of different herbicides and spray volumes when sprayed to ryegrass for chemical management and control of remaining seeds. The treatments were: three formulations of glyphosate at 1080 g ha-1 (Original Round up, Round up Transorb, WG Round Up), paraquat + diuron at 300+500 and 150+250 g ha-1 and glufosinate ammonium at 400 and 600 g ha-1. All treatments were used in spray volumes of 200 and 400 l ha-1. The effectiveness of the desiccation of ryegrass plants was assessed at 1, 3, 7, 14 and 21 days after application. At the last evaluation samples were collected for dry mass production analysis, and also panicles with seeds for germination test. Glyphosate in different formulations and volumes and glufosinate ammonium at 600 g ha-1 when sprayed with into 400 l ha-1 provided the best controls regarding ryegrass chemical management. Treatments with gliphosate (Roundup Original) and paraquat + diuron (300 +150 g ha-1) in volumes of 400 and 200 L ha-1, respectively, were the ones that showed the lowest values of dry matter, differing from the control. All the ryegrass seeds were killed by treatments with herbicides (paraquat + diuron) at 500 +250 g ha-1 and glufosinate-ammonium at 600 g ha-1 when used 200 l ha-1. O objetivo desse trabalho foi o de avaliar a eficácia de diferentes herbicidas aplicados em pósemergência na desseca o de plantas de azevém e viabilidade de sementes remanescentes do controle, com diferentes volumes de calda de aplica o. Os tratamentos testados foram: três formula es de glyphosate na dose de 1.080g ha-1 (Roundup Original, Roundup Transorb, Roundup WG), paraquat + diuron nas doses de 300 + 150 e 500 + 250g ha-1 e am nio-glufosinate nas doses de 400 e 600g ha-1. Em todos os tratamentos foram utilizados os volumes de aplica o de 200 e 400L ha-1. A eficácia na desseca o de plantas de azevém foram avaliados aos 1, 3, 7, 14 e 21 dias após aplica o, sendo que nesta última avalia o foram coletadas plantas para a análise de produ o de matéria seca, assim como panículas com sementes para testar a sua viabilidade. A desseca o do azevém com o herbicida glyphosate nas diferentes formula es e volumes testados, bem como o herbicida am nio-glufosinate na dose de 600g ha-1 no volume de aplica o de 400L ha-1 proporcionaram os melhores controles. Os tratamentos com gliphosate (Roundup Original) e paraquat+diuron (300+150g ha-1), nos volumes de 400 e 200L há-1, respectivamente, foram os que proporcionaram os menores valores de matéria seca, diferindo da testemunha. Todas as sementes remanescentes d
Qualidade fisiológica de sementes de três cultivares de trigo submetidas à inocula o e diferentes tratamentos Physiological quality of seeds of three wheat cultivars for different treatments
Leandro Rampim,Andréia Cristina Peres Rodrigues-Costa,Herbert Nacke,Jeferson Klein
Revista Brasileira de Sementes , 2012, DOI: 10.1590/s0101-31222012000400020
Abstract: Objetivou-se avaliar a qualidade fisiológica de sementes de trigo submetidas aos tratamentos com bioestimulante, triadimenol e Azospirillum brasilense. O delineamento utilizado foi inteiramente casualizado, quatro repeti es, esquema fatorial 3x8, três cultivares de trigo e oito tratamentos de sementes. As cultivares foram CD-150, CD-116 e CD-104, e os tratamentos foram obtidos da combina o entre: 150 g.L-1 de triadimenol (TRI); 90 mg.L-1 de cinetina + 50 mg.L-1 de ácido giberélico + 50 mg.L-1 de ácido indolbutírico (CGA) e estirpes Ab-V5 e Ab-V6 de A. brasilense na concentra o de 2,0 x 10(8) células viáveis mL-1 (AZO), organizados da seguinte forma: testemunha; TRI; CGA; AZO; TRI+CGA; TRI+AZO; CGA+AZO e TRI+CGA+AZO. Foi avaliada a germina o e plantulas anormais (%); comprimento da parte aérea, hipocótilo e raiz; diametro do hipocótilo; número de raiz; massa seca da parte aérea e raiz, e a rela o raiz/parte aérea. Os resultados evidenciaram que: os tratamentos n o influenciaram a germina o; o bioestimulante e Azospirillum brasilense isolados ou em associa o proporcionaram incrementos no desenvolvimento inicial de plantulas de trigo, e o triadimenol isolado ou associado com bioestimulante ou A. brasilense proporcionou menores valores de comprimento da parte aérea, hipocótilo, raiz e número de raiz, independente da cultivar testada. The objective of this study was to evaluate the physiological quality of wheat seed treated with plant growth regulators, triadimenol and Azospirillum brasilense. The experimental design was completely randomized with four replications in a 3x8factorial: three wheat cultivars and eight seed treatments. The cultivars used were CD-150, CD-116 and CD-104, and the treatments were a combination of three different substances: 150 g.L-1 triadimenol (TRI), 90 mg.L-1 kinetin + 50 mg.L-1 giberellic acid + 50 mg.L-1 indolebutyric acid (CGA) and strains Ab-V5 and Ab-V6 of A. brasilense at a concentration of 2.0 x 10(8) viable cells mL-1 (AZO), as follows: control, TRI, CGA, AZO, TRI+CGA, TRI+AZO, AZO+CGA and TRI+CGA+AZO. Germination and abnormal seedlings (%), shoot and hypocotyl length and the diameter, length and number of roots, dry weight of shoot and root/shoot were determined. The results showed that: the treatments did not affect seed germination; the treatments did not increases the early development of wheat seedlings and triadimenol alone or in combination with A. brasilense plant growth regulator resulted in lower values for shoot, root and hypocotyl length and root number for all the cultivars.
Rela es de poder na Vita Sancti Fructuosi e na Vita Dominici Siliensis: santos, monges, reis e nobres em duas hagiografias ibéricas
Andréia Cristina Lopes Fraz?o da Silva,Leila Rodrigues da Silva
Brathair , 2011,
Abstract: This article presents partial findings from an ongoing study supported by FAPERJ entitled Hagiography, society and power: a comparative study of the visigothic and medieval Castilian production. This research have collective character and the main objective is to compare, in synchronic and diachronic perspective, four hagiographic texts produced in the Iberian peninsula, in different periods and contexts of the Middle Ages, namely, the visigothic kingdom and the Castile kingdom. The works in question are Vita Sancti Aemiliani (VSA), Vita Sancti Fructuoso (VF), Vita Dominici Siliensis (VDci) and Vida de San Millan de la Cogolla (VSM). In this paper, we chose to compare the Vita Sancti Fructuoso (VF) and the Vita Dominici Siliensis (VDci), since the set of hagiographies selected by the research, they relate directly to the monastic universe: Frutuoso, the protagonist of VF, and Domingo, the protagonist of VDci lived cenobitics’ experiences. We are interested in focusing on the monastic communities and their members having as a central reference the links that were established from them with the kings and nobility. Observation the power relations imposed by these actors, we want to identify and analyze the various strategies that influence, oppress, control, resist, and, finally, interact each one with each other.
Variáveis qualitativas da pulveriza??o em feij?o, Bidens pilosa E Brachiaria plantaginea
Rodrigues, Andreia Cristina Peres;Martins, Dagoberto;Costa, Neumarcio Vilanova da;Cardoso, Leonildo Alves;Domingos, Vanessa David;
Ciência e Agrotecnologia , 2010, DOI: 10.1590/S1413-70542010000300024
Abstract: the objective of the present study was to evaluate the deposition quality of spray solution in common bean plants (phaseolus vulgaris l.), bidens pilosa l. and brachiaria plantaginea (link) hitchc., present in the crop row and spacing row. brilliant blue fdc - 1 was used as a tracer solution (500 ppm). five nozzles were used: flat fan nozzle (xr 110015 vs and xr 11002 vs), double flat fan nozzle (tj60 11002 vs) and cone nozzle (tx-6 vs and tx-8 vs), and two application volumes: 150 and 200 l ha-1. a randomized blocks design was used, with four replications. 25 plants were sampled for replication in each plot, common beans as well as weeds in crop row and spacing row. after the application, the plants were collected and washed in distilled water for tracer quantification in spectrophotometer. the data adjusted to the regression curve according to the gompertz model. the results showed that, for the common bean plants, xr 110015 and tj60 nozzles had provided the most uniform depositions in 150 and 200 l ha-1 application volume, respectively; the nozzle in the volume of 150 l ha-1 had a more uniform distribution for both the species of harmful plants present in the crop line; for the weeds present in the crop row in a volume of 150 l ha-1 the best performances were presented by the xr 110015 nozzle for b. pilosa and the tj60 nozzle for b. plantaginea. for the volume of 200 l ha-1 , the tx-8 nozzle presented the best performance for both species.
Simulated drift effect of glyphosate in different parts of Eucalyptus grandis plants Efeito da deriva simulada de glyphosate em diferentes partes da planta de Eucalyptus grandis
Andreia Cristina Peres Rodrigues da Costa,Neumárcio Vilanova da Costa,Maria Renata Rocha Pereira,Dagoberto Martins
Semina : Ciências Agrárias , 2012,
Abstract: The present work aimed to evaluate the effects of simulated drift of glyphoste on Eucalyptus grandis, through the application of low doses in different parts of the plant. The experimental design was a randomized block design with five replications. The treatments were glyphosate application at 0; 30; 60; 90 e 120 g a.e. ha-1 of the commercial formulation Scout . Three forms of application were used: applying on leaf, on stem, and on the entire plant (leaf + stem). For leaf application, stems were covered with plastic ribbons to protect them from the solution; the same was made with plants that were sprayed on stems, covering leaf with plastic bag. The application was carried out in an armed stationary spray tips XR 11002 VS, with 183 KPa pressure in volume of 200 L ha-1. The eucalyptus plants receiving applications in leaves and whole plant (leaves + stem) showing effects of intoxication are more intense about the plants that received the stem applications only. However, there may be increases in height growth and total dry mass of eucalyptus plants in applications of 30 g a.e. ha-1 glyphosate. No presente trabalho objetivou-se avaliar os efeitos da deriva simulada de glyphoste em plantas de Eucalyptus grandis, por meio da aplica o de doses reduzidas em diferentes partes da planta. Utilizouse o delineamento inteiramente casualizado, com cinco repeti es. Os tratamentos foram constituídos da aplica o de 0; 30; 60; 90 e 120 g e.a.ha-1 de glyphosate, da formula o comercial Scout . A aplica o foi realizada de três formas: aplica o sobre as folhas, no caule e na planta inteira (folha + caule). Para a aplica o nas folhas o caule foi coberto com fitas plásticas para evitar que fosse atingido pela solu o, e o mesmo foi feito com as plantas que receberam pulveriza o no caule, cobrindo as folhas com saco plástico. A aplica o foi realizada em um pulverizador estacionário, munido de pontas XR 11002 VS, com press o de 183 KPa e com consumo de calda de 200 L ha-1. As plantas de eucalipto que receberam aplica es nas folhas e na planta inteira (folhas + caule) apresentaram efeitos de intoxica o mais intenso em rela o às plantas que receberam aplica es somente no caule. Entretanto, pode ocorrer incrementos no crescimento em altura e na massa seca total das plantas de eucalipto em aplica es da dose de 30 g e.a. ha-1 de glyphosate.
Spray nozzles performance in the deposition of spray droplets on peanut crop Desempenho de pontas de pulveriza o na deposi o de gotas de pulveriza o na cultura do amendoim
Andreia Cristina Peres Rodrigues da Costa,Dagoberto Martins,Neumárcio Vilanova da Costa,Maria Renata Rocha Pereira
Semina : Ciências Agrárias , 2011,
Abstract: The objective of this study was to evaluate the effect of nozzles on spray droplet deposition in the peanut crop cultivar ‘Runner IAC 886’. The study was conducted in the field, and the applications of treatments performed in the vegetative stage (V1) and reproductive (R2). It was used the Brilliant Blue FDC – 1 as tracer in water solution, at 500 ppm. The treatments consisted of seven spray nozzle XR 110015 VS (150 L ha-1), XR 11002 VS (200 L ha-1), TX-VK 6 (150L ha-1), TX-VK 8 (200 L ha-1), AI 110015 VS (150 L ha-1), AI11002 VS (200 L ha-1) e TJ60 11002 VS (150 e 200 L ha-1). It was used a randomized blocks design, with four replications. After application, plants were immediately collected, and washed in 100 mL of distilled water for posterior tracer quantification in spectrophotometer. The data had been adjusted a regression curve for Gompertz model. The results had evidenced that at low volumes of application the nozzle AI 110015 VS and TJ60 11002 VS, were the ones with best distribution uniformity of spray on plants of peanut cultivar ‘Runner IAC 886’ in the vegetative stage (V1) and reproductive (R2) respectively, and the largest deposits and higher percentage of failures in applications have been found in younger plants by comparing the growth stages of application, regardless of the spray nozzle and volume. O objetivo deste estudo foi o de avaliar o efeito de pontas de pulveriza o na deposi o de gotas na cultura do amendoim da cultivar ‘Runner IAC 886’. O estudo foi realizado a campo, sendo as aplica es dos tratamentos realizadas nos estádios vegetativo (V1) e reprodutivo (R2). Foi utilizado como marcador o corante Azul Brilhante FDC -1 na concentra o de 500 ppm. Os tratamentos foram constituídos por sete pontas de pulveriza o: XR 110015 VS (150 L ha-1), XR 11002 VS (200 L ha-1), TX-VK 6 (150L ha-1), TX-VK 8 (200 L ha-1), AI 110015 VS (150 L ha-1), AI11002 VS (200 L ha-1) e TJ60 11002 VS (150 e 200 L ha-1). Utilizou-se o delineamento em blocos ao acaso, com 4 repeti es. Após a aplica o, as plantas foram imediatamente coletadas, e lavadas em 100 mL de água destilada para posterior quantifica o do marcador em espectrofot metro. Para as análises qualitativas, cada planta selecionada ao acaso dentro da faixa de aplica o da barra foi considerada uma repeti o, o que representou um total de 100 repeti es. Os dados obtidos foram ajustados à curva de regress o pelo modelo de Gompertz. Os resultados evidenciaram que independente do volume de aplica o as pontas AI 110015 VS e AI 11002 VS, foram as que proporcionaram maiores depósitos de calda
Fatores de risco e morbimortalidade associados à fibrila??o atrial no pós-operatório de cirurgia cardíaca
Silva, Rogério Gomes da;Lima, Gustavo Glotz de;Laranjeira, Andréia;Costa, Altamiro Reis da;Pereira, Edemar;Rodrigues, Rubem;
Arquivos Brasileiros de Cardiologia , 2004, DOI: 10.1590/S0066-782X2004001400002
Abstract: objective: to determine the incidence of atrial fibrillation in the postoperative period of cardiac surgery, its impact on morbidity, mortality, and hospital stay, and to analyze the risk factors in the pre, trans, and postoperative periods. method: contemporary cohort study with 158 adult patients undergoing cardiac surgery, of whom those with atrial fibrillation in the preoperative period were excluded. the patients were assessed with continuous cardiac monitoring and daily electrocardiograms. any episode of irregular rhythm with the presence of f waves of variable morphology and amplitude was considered atrial fibrillation. results: the general incidence of atrial fibrillation was 28.5%, being 21.6% for revascularized patients and 44.3% for those undergoing valvular repair. factors independently associated with atrial fibrillation were left heart failure in the preoperative period (p=0.05; rc=2.2), total fluid balance (p=0.01; rc=1.0), duration of surgery (p=0.03; rc=1.01) [and other associated factors, age > 70 years, aortic valvular disease, psychomotor agitation, length of installation of the drains, pulmonary congestion and respiratory insufficiency in the postoperative period]. the use of beta-blockers (p=0.01; rc=0.3) was a protective factor. atrial fibrillation in the postoperative period was associated with an increase in the length of hospital stay (16.9±12.3 days versus 9.2±4.0 days, p<0.001) and a greater incidence of stroke or postoperative death (p=0.02). conclusion: the incidence of atrial fibrillation in the postoperative period of cardiac surgery was high and caused a significant increase in morbidity, mortality, and the length of hospital stay. among the independent risk factors, excessive fluid balance is significant. the use of beta-blockers was identified as a protective factor.
Growth and Photosynthetic Pigments of Cotton Cultivars Irrigated with Saline Water  [PDF]
Elka Costa Santos Nascimento, Ronaldo do Nascimento, André Alisson Rodrigues da Silva, Carlos Vailan de Castro Bezerra, Mateus Costa Batista, Luana Lucas de Sá Almeida Veloso, Márcia Cristina de Araújo Pereira, Hallyson Oliveira
Agricultural Sciences (AS) , 2019, DOI: 10.4236/as.2019.101007
Abstract: The cultivation of cotton is a relevant socioeconomic activity in the Brazilian agricultural scenario. In the Brazilian Northeast, however, production is limited by low rainfall, requiring water supplementation, a problem for the cotton cultivation practiced in the semi-arid region, due to the presence of saline ions in several water sources, from where the water is used for irrigation. It is necessary to identify cultivars that better tolerate saline stress in order to provide subsidies for their cultivation under such conditions. In this sense, the objective was to evaluate the tolerance of cotton cultivars to salinity. The experiment was conducted in a greenhouse, belonging to the Natural Resource Technology Center of the Federal University of Campina Grande, Campus I, Campina Grande, Brazil, in a completely randomized design in a 2 × 5 factorial scheme, with four replications, totaling 40 experimental units (BRS 368 RF and BRS SAFIRA) submitted to five saline levels (1.5, 3.0, 4.5, 6.0 and 7.5 dS·mˉ1). Irrigation with water saline of EC from 1.5 dS·mˉ1 affects adversely the growth of cotton cultivars, causing reductions in plant height, stem diameter, leaf area and number of leaves. Saline stress reduced the levels of the photosynthetic pigments of the cotton plants studied.
Abordagem fitoquímica, composi o bromatológica e atividade antibacteriana de Mimosa tenuiflora (Wild) Poiret E Piptadenia stipulacea (Benth) Ducke =Phytochemical approach, bromatologic composition and antibacterial activity of Mimosa tenuiflora (Wild) Poiret and Piptadenia stipulacea (Benth) Ducke
Denise Aline Casimiro Bezerra,Fabíola Fernandes Galv?o Rodrigues,José Galberto Martins da Costa,Andréia Vieira Pereira
Acta Scientiarum : Biological Sciences , 2011,
Abstract: A necessidade de encontrar novas drogas eficazes no combate microbiano tem aumentado a cada dia e estimulado a busca de novos compostos naturais com atividades biológicas. Neste trabalho, realizaram-se estudo fitoquímico e análises microbiológicas com os extratos etanólicos das espécies (jurema-preta) Mimosa tenuiflora (Wild) Poiret e (juremabranca) Piptadenia stipulacea (Benth) Ducke, frente a linhagens de bactérias patogênicas. O pó da casca do caule de ambas as espécies foi submetido à avalia o bromatológica e determinados os teores de Matéria Seca, Matéria Mineral, Proteína Bruta, Fibra em Detergente Neutro e Energia Bruta. Os resultados para a prospec o química indicaram a presen a de taninos e outros compostos fenólicos, bem como a presen a de saponinas em ambos os extratos. Os extratos das duas espécies demonstraram que mais de uma parte das plantas possui atividade antimicrobiana. A composi o bromatológica da casca do caule de jurema-preta e jurema-branca apresentou teores diferenciados para as variáveis avaliadas. The need to find new efficient drugs to combat microbes has increasedthe search for new natural compounds with biological activities. In this work, phytochemical studies and microbiological analysis were carried out with the ethanol extracts of Mimosa tenuiflora (Wild) Poiret and Piptadenia stipulacea (Benth) Ducke on pathogenic bacteria strains. The bark powders of both species were submitted to bromatologic evaluation and the levels of dry matter, mineral matter, crude protein, neutral detergent fiber (NDF) and crude energy were determined. The results of the chemical search chemical showed the presence of tannins and other phenolic compounds as well as the presence of saponins in both extracts. The microbiologic evaluation of the extracts of both species showed that more than one part of the plants had antimicrobial activity. The bromatologic composition of the bark powder of Mimosa tenuiflora (Wild) Poiret and Piptadenia stipulacea (Benth) Ducke showed different contents for analyzed variables.
Correla??o da cadeia ossicular no transoperatório com achados histológicos de colesteatomas
Dornelles, Cristina;Rosito, Letícia Petersen Schmidt;Meurer, Luíse;Costa, Sady Selaimen da;Argenta, Andréia;Alves, Sabrina Lima;
Revista Brasileira de Otorrinolaringologia , 2007, DOI: 10.1590/S0034-72992007000600004
Abstract: chronic otitis media is hystopathologycaly defined as the presence of irreversible inflammatory tissue changes in the middle ear. ossicular lesions represent the most prevalent change. aim: to correlate the degree of ossicular chain changes seen during surgery with the inflammatory histological degree and the thickness of the cholesteatoma perimatrix. study desgn: cross-sectional study. methods: seventy-one descriptions of surgeries done in patients submitted to tympanomastoydectomy were reviewed. cholesteatoma were collected and fixed in 10% formaldehyde. two slides were made for each cholesteatoma, one stained with he and another with picrossirius. images were obtained from light microscopy and digitally processed and "blindly" analyzed using image pro-plus software. for statistical analysis we used spearman's coefficient. differences were considered statistically significant if p≤0.05. results: the ossicular chain was involved in 65 cases. the incus was the most frequently affected bone, followed by the stapes and the malleus. when the spearman's coefficient was employed considering ossicular chain change degree with patient's age by the time of surgery, perimatrix thickness and histological degree of inflammation, correlations were not established. conclusion: our findings indicate that ossicular chain changes are practically universal when a cholesteatoma is present. we didn't find correlations related with bone erosion and cholesteatoma's histological findings.
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