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Search Results: 1 - 10 of 601974 matches for " Lúcia Carla MENDON?A "
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Atividade Antimicrobiana de Extratos Etanólicos de Peperomia pellucida e Portulaca pilosa
LORENA PAULA MERCêS MENDES,KAREN MARINHO MACIEL,ANT?NIA BENEDITA RODRIGUES VIEIRA,LúCIA CARLA VASCONCELOS MENDONA
Revista de Ciências Farmacêuticas Básica e Aplicada , 2011,
Abstract: As plantas utilizadas na medicina tradicional est o sendo cada vez mais estudadas por serem possíveis fontes de substancias com atividades antimicrobianas. Dentre elas, destacando-se a Peperomia pellucida (erva-de-jabuti) e a Portulaca pilosa (amor-crescido), utilizadas comumente na Amaz nia. A P. pellucida é utilizada, popularmente, em casos de hemorragia, como curativo para feridas, dores abdominais, abscessos, acne, furúnculos, cólicas, problemas renais, hipertens o e colesterol, enquanto a P. pilosa é utilizada como hepato-protetor, antidiarreico, diurético, para queimaduras, erisipelas e ferimentos. Neste trabalho, foram realizadas a abordagem fitoquímica e a atividade antimicrobiana in vitro desses dois materiais vegetais. A prospec o fitoquímica revelou a presen a de a úcares redutores, fenóis e taninos, esteroides e triterpenoides, glicosídios cardíacos e carotenoides no extrato etanólico seco (EES) de P. pillosa, e a presen a de proteínas e aminoácidos, fenóis e taninos, flavonoides, esteroides e triterpenoides, azulenos, carotenoides, depsídios e depsidonas no EES de P. pellucida. Para avalia o da atividade antimicrobiana dos extratos etanólicos brutos, foi empregado o método de disco difus o em ágar, nas concentra es de 500; 250; 125 e 62,5 μg/mL. Os extratos testados que apresentaram atividade antimicrobiana na avalia o preliminar foram submetidos à determina o da concentra o inibitória mínima (CIM) pela técnica de microdilui o em caldo. O extrato de P. pellucida possui atividade antimicrobiana frente a S. aureus e P. aeruginosa, e o de P. pilosa contra Pseudomonas aeruginosa. Palavras-chave: Atividade antimicrobiana. Peperomia pellucida. Portulaca pilosa. Erva-de-jabuti. Amor-crescido. ABSTRACT Antimicrobial Activity of Ethanol Extracts of Peperomia pellucida and Portulaca pilosa Plants used in traditional medicine are under increasing scrutiny as possible sources of substances with antimicrobial activity. In this article we focus on Peperomia pellucida (erva-de-jabuti) and Portulaca pilosa (amor crescido), both commonly used in the Amazon. P. pellucida is popularly used as a wound dressing, to stop bleeding, and in cases of abdominal pain and cramps, abscesses, acne, boils, kidney problems, hypertension and raised cholesterol, and P. pilosa as a hepato-protective, antidiarrheal and diuretic and for burns, erysipelas and injuries. In this study, we investigated the phytochemistry and antimicrobial activity of extracts of these two plant materials. Phytochemical screening revealed the presence of reducing sugars, phenols and tannins,
Antimicrobial activity of extracts obtained from the seeds of Vatairea guianensis (Aublet)
Cléia Tereza LAMAR?O DA SILVA,Lúcia Carla MENDONA,Marta CHAGAS MONTEIRO,José Carlos TAVARES CARVALHO
Boletín Latinoamericano y del Caribe de Plantas Medicinales y Aromáticas , 2011,
Abstract: Las plantas medicinales son ampliamente utilizados y culturalmente de forma empírica para tratar varias enfermedades en la Amazonía. Aquí, fue estudiado Vatairea guianensis, que se utiliza en la medicina tradicional para tratar infecciones de la piel, como las micosis cutáneas. El presente trabajo se evaluó la actividad in vitro antibacteriana de los extractos hidroetanólico, hexánico, clorofórmico y metanólico, obtenido de las semillas de V. guianensis por el método de microdilución en caldo, para medir su concentración inhibitoria mínima (CIM) y la concentración mínima bactericida (CMB) contra las bacterias Gram-positivas (Staphylococcus aureus y Enterococcus faecalis) y Gram-negativas (Pseudomonas aeruginosa y Salmonella sp.). Todos los extractos mostraron actividad antimicrobiana frente a bacterias Gram-positivas y Gram-negativas, con los CIM que van desde 3,12 ug / ml a 50 ug / mL y CMB que van de 6,25 ug / ml a 100 ug / ml. Por último, estos resultados sobre la actividad antimicrobiana podrían contribuir al estudio de V. guianensis y aumentar el interés médico en este género, que todavía está poco estudiada.
Consumo e digestibilidade total dos nutrientes e produ??o e composi??o do leite de vacas alimentadas com teores crescentes de proteína bruta na dieta contendo cana-de-a?úcar e concentados
Cordeiro, Carla Fabrícia de Araujo;Pereira, Mara Lúcia Albuquerque;Mendona, Sandro de Souza;Almeida, Paulo José Presidio;Aguiar, Luzyanne Varj?o;Figueiredo, Mauro Pereira de;
Revista Brasileira de Zootecnia , 2007, DOI: 10.1590/S1516-35982007000900023
Abstract: the objective of this research was to evaluate the effect of increasing levels of cp in the total dm of diet (11.5, 13.0, 14.5 and 16.0%) on the intakes and the total digestibility of nutrients and the milk production and composition of dairy cows in initial third of lactation. the research was constituted by four experimental periods of 15 days each, seven for adaptation of the animals to the diet and eight for data collection. eight cows, individually fed, were distributed to two balanced 4 × 4 latin squares. a cottonseed meal, ground corn-based concentrate (40%) was used and, as forage, sugar cane corrected with 1% of urea + ammonium sulfate (9:1), in the proportion of 60% (%dm). the daily average intakes of nutrients, except for ee and nfc, differed as the levels of cp increased in the diet. the protein levels in the diet did not affected the coefficients of total apparent digestibility of the nutrients. production of fat corrected milk, 3.5% or not and its components (fat, cp and lactose), expressed in g/day, and milk urea nitrogen showed increased linear effect, while the n efficiency showed negative linear effect of the cp levels in the diet. the diet with 16% cp provided values numerically greater for intake and milk production and its components as compared to diets with lower levels of cp.
Metabolismo oxidativo dos neutrófilos de ovinos tratados com monensina sódica e experimentalmente submetidos à acidose ruminal
Afonso, José Augusto B.;Ciarlini, Paulo C.;Kuchembuck, Márcio R.G.;Kohayagawa, Aguemi;Feltrin, Lúcia P.Z.;Ciarlini, Luciana D.R. Pinoti;Laposy, Cecília B.;Mendona, Carla L.;Takahira, Regina K.;
Pesquisa Veterinária Brasileira , 2002, DOI: 10.1590/S0100-736X2002000400001
Abstract: ruminal acidosis is due to excessive ingestion of carbohydrates of rapid fermentation without previous adaptation of the microorganisms, causing severe metabolic disturbances to the animals. the objective of the present study was to assess the neutrophilic oxidative metabolism in sheep treated with sodium monensin in experimentally induced ruminal lactic acidosis. a total of 18 male sheep, half-bred (ideal x merino), fistulated in the rumen, were used; nine of them received 33 mg/kg of the ionophore diet per day, for 30 days; the others were controls. the acidosis was induced by supplying 15g of sucrose/kg of body weight. the clinical evaluation and the rumen and blood samples were obtained before (0h) and at 6, 12, 24 and 48 hours post-induction. in both groups, all the animals presented clinical manifestations of ruminal lactic acidosis 6 hours after the induction. from this period on, a significant ph decrease (p<0.05) was observed in the ruminal fluid, which reached levels below 5. there were relevant differences (p<0.05) between the groups 12 hours after the induction, when the sheep treated with monensin had higher values than those of the control group. during this period, the oxidative metabolism of the neutrophils remained inhibited, and the reestablishment of this function only occurred in the sheep which received monensin. blood ph, plasmatic glucose and the ionizable calcium suffered alterations within its levels. the seric cortisol concentration rose significantly (p<0.05) in both groups, although differences (p<0.05) between them were found at the end of the observation period. the treatment with monensin did not influence the oxidative metabolism of the neutrophils inhibited by the lactic acidosis; however, a faster recovery of this metabolism was verified in the animals treated with the ionophore.
Marcadores neurobiológicos e psicométricos da eficácia da terapia cognitivo-comportamental no transtorno de estresse pós-traumático associado a sintomas dissociativos: relato de caso
Lages, Ana Cristina;Nórte, Carlos Eduardo;Pedrozo, Ana Lúcia;Gon?alves, Raquel Menezes;Marques-Portella, Carla;Souza, Gabriela Guerra Leal;Mendona-de-Souza, Ana Carolina;Ventura, Paula Rui;
Revista de Psiquiatria do Rio Grande do Sul , 2011, DOI: 10.1590/S0101-81082011000100011
Abstract: introduction: post-traumatic stress disorder (ptsd) has been associated with dysregulation of many psychophysiological parameters and may present comorbidity with different psychopathologies, including dissociation, potentially affecting treatment outcome. the aim of this study was to evaluate the effects of cognitive behavioral therapy in a patient with ptsd and dissociative symptoms based on psychophysiological and psychometric measures at different time points throughout the course of treatment. case description: our patient is a 38-year old man diagnosed with ptsd, major depression, and dissociative symptoms, resistant to pharmacotherapy. psychological treatment lasted for 4 months and consisted of one weekly therapy session and three weekly coaching sessions. physiological (heart rate, vagal tone, sympathovagal balance, and cortisol) and psychometric measures (negative and positive affect, resilience, and post-traumatic stress, depression, anxiety, and dissociative symptoms) were obtained before, during (once a month) and after treatment. comments: results showed a decrease in sympathovagal balance and an increase in heart rate, vagal tone and cortisol levels during the course of treatment. treatment also lead to a decrease in negative affect and in post-traumatic stress, depression, anxiety, and dissociation symptoms, as well as to an increase in resilience, social support and positive affect scores. these results suggest that cognitive behavioral therapy is an effective treatment for ptsd patients with dissociative symptoms. moreover, the treatment seems to be able to normalize ptsd-related physiological parameters in the neuroendocrine and autonomic nervous systems.
Ense anza superior en Espa a: políticas educativas y financiación en las universidades públicas
Vera Lúcia de Mendona Silva
Universidades , 2009,
Abstract: Las actuales demandas económicas están conduciendo a la universidad a reelaborar su proyecto académico y científico. La institución debe aportar un conocimiento que promueva las condiciones necesarias para afrontar la actual competitividad laboral, así como una investigación que posibilite al mercado explorarla económicamente. En esa perspectiva, los gobiernos han promovido un mayor acercamiento entre universidades y empresas. El texto trata de se alar las acciones políticas del gobierno espa ol para laense anza superior. Para ello, se enunciarán las intervenciones que permiten comprender la magnitud del proceso de cambios en la universidad para favoreceruna educación moderna, de cara a las demandas de la sociedad tecnológica actual y en el marco de las directrices de la Unión Europea.
Comportamento ingestivo de vacas leiteiras alimentadas com dietas à base de cana-de-a?úcar ou silagem de milho
Mendona, Sandro de Souza;Campos, José Maurício de Souza;Valadares Filho, Sebasti?o de Campos;Valadares, Rilene Ferreira Diniz;Soares, Carla Aparecida;Lana, Rogério de Paula;Queiroz, Augusto César de;Assis, Anderson Jorge de;Pereira, Mara Lúcia Albuquerque;
Revista Brasileira de Zootecnia , 2004, DOI: 10.1590/S1516-35982004000300021
Abstract: twelve purebred and crossbred holstein cows were assigned to three latin squares 4 x 4, balanced according to the lactating period, to evaluate the ingestive behavior parameters. the experimental diets were based on corn silage with 60:40 forage:concentrate ratio, in dry matter (dm) basis, or based on sugar cane with 60:40 or 50:50 forage:concentrate. the cows were submitted to visual observation for ingestive behavior evaluation. the animals were observed every 10 minutes, during 24 hours, to determine the time expended eating, ruminating and resting. there was no difference for the mean time expended eating and ruminating among the experimental diets. however, in the corn silage based diets, the animals expended less time idle, compared to those fed sugar cane based diets. feeding efficiency, expressed in gndf/h, showed no difference among the experimental diets. rumination efficiency, expressed in gdm/h, was similar for the different diets. rumination efficiency, expressed in gndf/h (ruendf) was higher for the corn silage based diet. there was no difference in ruendf among the sugar cane based diets. cows fed sugar cane based diets showed higher time expended in idle and smaller dm intake, when compared those fed corn silage based diets.
Balan?o de compostos nitrogenados, produ??o de proteína microbiana e concentra??o plasmática de uréia em vacas leiteiras alimentadas com dietas à base de cana-de-a?úcar
Mendona, Sandro de Souza;Campos, José Maurício de Souza;Valadares Filho, Sebasti?o de Campos;Valadares, Rilene Ferreira Diniz;Soares, Carla Aparecida;Lana, Rogério de Paula;Queiroz, Augusto César de;Assis, Anderson Jorge de;Pereira, Mara Lúcia Albuquerque;
Revista Brasileira de Zootecnia , 2004, DOI: 10.1590/S1516-35982004000200028
Abstract: twelve purebred and crossbred holstein cows were allotted to three 4 x 4 latin squares to evaluate the nitrogen (n) balance, microbial protein production, plasma and milk urea concentration and different urine collections times. the experimental diets were based on corn silage (cs) (ag 1051) with forage:concentrate ratio (f:c) of 60:40, in dry matter (dm) basis, or in sugar cane basis (sc) (rb 855536) with f:c of 60:40 with .35 or 1% of urea+ammonium sulfate (as) mixture or fc of 50:50 with 1% of urea+as. nitrogen balance (n) was higher for cs based diet, 88 g n/day, in relation to sc based diets with 40% concentrate, 67 or 69 g n/day. among the sc diet based, difference on n balance was observed. average total daily excretion of purine derivatives (dp), absorbed purine (ap) and estimated microbial n, 221 g/day, were higher for cs based diet, when compared to sc based diets with 40% concentrate, 180 ou 178 g microbial n/day. however, when compared to sc based diet with 50% concentrate, there was no difference for n balance, pd, ap and microbial n variables. there was no difference in the average total daily excretion of pd, ap and microbial n production among the diets containing sc. there was no difference on the daily mean urine excretion of creatinine (24 x 22 mg/ of kglw), urea, allantoin (245 x 228 mmol/day) and uric acid relative to the urine collection of 24 or 8 hours, or else, total or partial urine collection. sc based diet, corrected for 1% of urea+as, with 50% concentrate provided microbial protein production similar to that of cs based diet with f:c ratio of 60:40, in dm basis. n-urea plasma seems to be better indicator of the protein metabolism in dairy cows than n-urea in milk.
Consumo, digestibilidade aparente, produ??o e composi??o do leite e variáveis ruminais em vacas leiteiras alimentadas com dietas à base de cana-de-a?úcar
Mendona, Sandro de Souza;Campos, José Maurício de Souza;Valadares Filho, Sebasti?o de Campos;Valadares, Rilene Ferreira Diniz;Soares, Carla Aparecida;Lana, Rogério de Paula;Queiroz, Augusto César de;Assis, Anderson Jorge de;Pereira, Mara Lúcia Albuquerque;
Revista Brasileira de Zootecnia , 2004, DOI: 10.1590/S1516-35982004000200027
Abstract: twelve purebred and crossbred holstein cows were allotted to three 4 x 4 latin squares to evaluate the intake, apparent digestibility of nutrients, milk production and composition, ruminal ph and ammonia. the experimental diets were based on corn silage (cs) (ag 1051) with forage:concentrate ratio (f:c) of 60:40, in dry matter (dm) basis, or based on sugar cane (sc) (rb 855536) with f:c of 60:40 with .35 or 1% of urea+ammonium sulfate (as) mixture or f:c of 50:50 with 1% of urea+as. dm intake was 17.8, 14.9, 14.4, and 15.8 kg/day, for the diets, respectively. dm intake was higher, resulting in greater nutrient intake for cs based diet, except for the non fiber carbohydrates intake, which showed higher intake for sc based diet with 50% concentrate. milk production (mp) was higher for the cs based diet, with no difference in mp among the sc based diets, with mean values of 22.0, 19.0, 18.6, and 20.1 kg/day and the 3.5% fat corrected milk production was 23.0, 19.7, 19.4, and 21.3 kg/day for the cs, sc .35%, sc 1% and sc 1% 50:50, respectively. milk composition was not different among the experimental diets and milk fat contents were 3.8, 3.8, 3.8, and 3.9% for the cs, sc .35%, sc 1% and sc 1% 50:50, respectively. no difference on apparent digestibility of dm, organic matter, crude protein and total carbohydrates among the diets was observed. the neutral detergent fiber (ndf) apparent digestibility was higher for the cs based diet (47). there was no difference in ndf digestibility among sc based diets, 32, 31 and 31%, respectively. inside each time (before and three hours after the morning feeding) there was no difference of ph values and amonia nitrogen compounds (n-nh3) among the diets.
Genetic Variability of Pumpkin Landraces in Brazilian Amazon  [PDF]
Lúcia Helena Pinheiro Martins, Hiroshi Noda, Maria Teresa Gomes Lopes, Maria Silvesnizia Paiva Mendona, Ayrton Luiz Urizzi Martins
Agricultural Sciences (AS) , 2016, DOI: 10.4236/as.2016.712075
Abstract: The family farm of the Upper Solim?es region has maintained the great genetic variability of the pumpkin (Cucurbita maxima Duchesne) by the in situ conservation of the landraces which are widely used as human food. The aim of this study was to estimate the current level of genetic variability of pumpkin landraces by means of estimation techniques of genetic parameters. Landraces areas samples were the family farming production units located in floodplains ecosystems of Benjamin Constant (Upper Solim?es River) and Iranduba (Lower Solim?es River), Amazonas. The split-plot designs were adopted at the treatments where the main plots were the five pumpkin landraces and one commercial cultivar. Each landrace was obtained six half sib families distributed in the sub-plots. Among the results of this study, it can be concluded that the genetic variation within the each landrace is greater than the genetic variation among the landraces. The qualitative morphological characteristics bring together half-sib families collected in geographically distant locations. It can be concluded that, through the estimation of genetic parameters, there is genetic variability among local cultivars collected in family farming of Benjamin Constant and Iranduba, Amazonas.
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