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Search Results: 1 - 10 of 565573 matches for " Maria da Gra?a Guilherme Vieira; "
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Equa??es para a estimativa do índice de área foliar do cafeeiro
Favarin, José Laércio;Dourado Neto, Durval;García y García, Axel;Villa Nova, Nilson Augusto;Favarin, Maria da Graa Guilherme Vieira;
Pesquisa Agropecuária Brasileira , 2002, DOI: 10.1590/S0100-204X2002000600005
Abstract: with the purpose of estimating the temporal variation of the coffee leaf area index (lai), using a non destructive simple methodology, an experiment was carried out at the crop production department, escola superior de agricultura luiz de queiroz, of the universidade de s?o paulo, piracicaba, sp, brazil. the mundo novo iac 388-17 cultivar, grafted on the cultivar apoat? iac 2258 (15 to 35 months old), was used with a distance between plants of 2.5 m x 1.0 m, where all leaves of two coffee plants were collected, with intervals varying from 60 to 150 days, to measure the leaf area using the li-cor equipment (model 3100). to obtain the functional relationship between the lai and different growth variables (plant height, total number and mass of leaves and leaf area) and the canopy architecture (inferior, medium and superior crop canopy area; crop canopy lateral area; inferior, medium and superior canopy diameter; the plant canopy volume; and the first two branches height), a conic shape for aerial plant architecture was assumed. the inferior canopy diameter (first two branches) and the plant height can be used to estimate the coffee leaf area index.
Características da semente em rela??o ao seu potencial fisiológico e a qualidade de mudas de café (Coffea arabica L.)
Favarin, José Laércio;Costa, José Dias;Novembre, Ana Dionisia Coelho;Fazuoli, Luiz Carlos;Favarin, Maria da Graa Guilherme Vieira;
Revista Brasileira de Sementes , 2003, DOI: 10.1590/S0101-31222003000400003
Abstract: the main objective of this work was to evaluate the influence of arabic coffee seed characteristics in its physiological potential and overall seedling quality. the experiment described here consisted of six treatments, with four replications, in a completely random model, combined with a factorial outline (3x2). the two seed characteristics evaluated were size (3 sieves: 18/64", 20/64"and 22/64") and mass (2 classes: heavy and light). the seeds were from catuaí amarelo iac 86 variety (coffea arabica l.). the seed physiologic quality was evaluated by germination rate and initial population index. seedling quality was estimated by the variables leaf area index, cotyledon leaves, plant height, stem diameter, and leaf, stem and root dry matter. the data analysis suggested that size separation although necessary is not sufficient for an appropriate selection for high seed physiologic potential and quality of seedling production. on the other hand, total mass amount, which represents a partial estimative of endosperm mass, is a fundamental characteristic to be considered. therefore, the association of bots arabic coffee seed size and mass aspects should be recommended as a technical procedure during seed selection process.
Valida o da curva normal de peso fetal estimado pela ultra-sonografia para o diagnóstico do peso neonatal
Cecatti José Guilherme,Machado Maria Regina Marrocos,Krupa Fabiana da Graa,Figueiredo Priscila Garcia
Revista Brasileira de Ginecologia e Obstetrícia , 2003,
Abstract: OBJETIVO: avaliar a concordancia entre o peso fetal estimado (PFE) por ultra-sonografia e o neonatal, o desempenho da curva normal de PFE por idade gestacional no diagnóstico de desvios do peso fetal/neonatal e fatores associados. MéTODOS: participaram do estudo 186 grávidas atendidas de novembro de 1998 a janeiro de 2000, com avalia o ultra-sonográfica até 3 dias antes do parto, determina o do PFE e do índice de líquido amniótico e parto na institui o. O PFE foi calculado e classificado de acordo com a curva de valores normais de PFE em: pequeno para a idade gestacional (PIG), adequado para a idade gestacional (AIG) e grande para a idade gestacional (GIG). A mesma classifica o foi feita para o peso neonatal. A variabilidade das medidas e o grau de correla o linear entre o PFE e o peso neonatal foram calculados, bem como a sensibilidade, especificidade e valores preditivos para o uso da curva de valores normais de PFE para o diagnóstico dos desvios do peso neonatal. RESULTADOS: diferen a entre o PFE e o peso neonatal variou entre -540 e +594 g, com média de +47,1 g, e as duas medidas apresentaram um coeficiente de correla o linear de 0,94. A curva normal de PFE teve sensibilidade de 100% e especificidade de 90,5% em detectar PIG ao nascimento, e de 94,4 e 92,8%, respectivamente, em detectar GIG, porém os valores preditivos positivos foram baixos para ambos. CONCLUS ES: a estimativa ultra-sonográfica do peso fetal foi concordante com o peso neonatal, superestimando-o em apenas cerca de 47 g e a curva do PFE teve bom desempenho no rastreamento diagnóstico de recém-nascidos PIG e GIG.
Chemical Characterization and in Vitro Antitumor Activity of the Essential Oils from the Leaves and Flowers of Callistemon viminalis  [PDF]
Christiane Maria de Oliveira, Maria das Gra?as Cardoso, Marisa Ionta, Marisi Gomes Soares, Juliana de Andrade Santiago, Guilherme álvaro Ferreira da Silva, Maria Luisa Teixeira, Danúbia Aparecida de Carvalho Selvati Rezende, Rafaela Vieira de Souza, Luana Isac Soares, David Lee Nelson, Marcos Schleiden Sousa Carvalho
American Journal of Plant Sciences (AJPS) , 2015, DOI: 10.4236/ajps.2015.616268
Abstract: The objective of this study was to characterize and verify the in vitro antitumor activity of essential oils (EOs) extracted from the leaves and flowers of Callistemon viminalis. The EOs were extracted by hydrodistillation using a modified Clevenger apparatus. The identification and quantification of constituents were performed on a gas chromatograph coupled to a mass spectrometer and a gas chromatograph with a flame ionization detector. The antitumoral activity was evaluated by a colorimetric assay (MTS) using different cell lines derived from human tumors (breast, lung, glioblastoma, and melanoma). The major constituents of the EOs of leaves and flowers were similar, only quantitative differences being observed. The compounds 1,8-cineole, α-pinene and α-terpineol were found in concentrations of 50.4%, 25.8% and 8.7% in the EOs obtained from the leaves and 48.8%, 24.5% and 3.9% in the EOs obtained from the flowers, respectively. The cytotoxic activity of the EOs was observed only in melanoma cultures (HT144). Cultures treated for 48 h with EOs from leaves and flowers (200 μg·mL-1) reduced the viability by 40% and 25%, respectively. Thus, the antiproliferative activity of the EO from leaves was more pronounced than the EO from flowers in cells derived from melanoma.
Valida??o da curva normal de peso fetal estimado pela ultra-sonografia para o diagnóstico do peso neonatal
Cecatti, José Guilherme;Machado, Maria Regina Marrocos;Krupa, Fabiana da Graa;Figueiredo, Priscila Garcia;Pires, Helaine Maria Besteti;
Revista Brasileira de Ginecologia e Obstetrícia , 2003, DOI: 10.1590/S0100-72032003000100006
Abstract: purpose: tocompare the ultrasound estimation of fetal weight (efw) with neonatal weight and to evaluate the performance of the normal efw curve according to gestational age for the diagnosis of fetal/neonatal weight deviation and associated factors. methods: one hundred and eighty-six pregnant women who delivered at the institution from november 1998 to january 2000 and who had one ultra-sonographic evaluation performed until three days prior to delivery with estimation of the amniotic fluid index were included. efw was calculated and classified in to small for gestational age (sga), adequate for gestational age (aga) and large for gestational age (lga) through the normal efw curve for this population. neonatal weight was similarly classified. the variability of the measures and the degree of linear correlation between efw and neonatal weight, as well as sensitivity, specificity and predictive values for the use of the normal efw curve in the diagnosis of neonatal weight deviations were calculated. results: the difference between efw and neonatal weight ranged from -540 to +594 g, with a mean of +46.9 g, and the two measures presented a linear correlation coefficient of 0.94. the normal efw curve had a sensitivity of 100% and specificity of 90.5% in detecting sga neonates and of 94.4 and 92.8%, respectively, in detecting lga; however, the predictive positive values were low for both conditions. conclusions:ultrasound efw was in agreement with the neonatal weight, with a mean overweight of approximately 47 g, and its normal curve showed a good performance in the screening of sga and lga neonates.
Expectativas de resultados frente ao uso de álcool, maconha e tabaco
Pedroso, Rosemeri Siqueira;Oliveira, Margareth da Silva;Araujo, Renata Brasil;Castro, Maria da Graa;Melo, Wilson Vieira;
Revista de Psiquiatria do Rio Grande do Sul , 2006, DOI: 10.1590/S0101-81082006000200012
Abstract: this article aims to perform a theoretical review about the outcome expectancy construct considering the use of alcohol, cannabis and tobacco. outcome expectancy is determined by people's belief about the effects of a drug. it is an important variable for the treatment of chemically dependent patients. searches in the electronic databases medline, psycinfo, proquest, ovid, lilacs and cork were carried out, using the following descriptors: belief, expectancy, expectation, drugs, psychoactive, and effect. results showed that outcome expectancy considering the use of those substances can be generated from: exposure to conditioning stimuli, physical dependence, personal and cultural beliefs, and situational and environmental factors. in conclusion, there is the need of new researches on expectancies related to psychoactive substances and age groups in order to have a better understanding of this construct.
A (des)articula??o entre os níveis de aten??o à saúde dos Bororo no Polo-Base Rondonópolis do Distrito Sanitário Especial Indígena de Cuiabá-MT
Vargas, Karem Dall'acqua;Misoczky, Maria Ceci;Weiss, Maria Clara Vieira;Costa, Wildce da Graa Araujo;
Physis: Revista de Saúde Coletiva , 2010, DOI: 10.1590/S0103-73312010000400018
Abstract: this paper comes from a study aiming to evaluate loco-regional strategies of articulation between the levels of health care organizations, considering both the adjustment to the existing rules (deliberate strategy), and the creative developments (emergent strategies) built in the contexts studied. the reference for judgment (an act inherent to evaluative research) was the coherence with the constitutional principles that define the sus. the case study reported was based on information obtained in secondary documents, by extensive direct observation, questionnaires and deep interviews with key informants. the results showed, in respect to the articulation of primary health care with other levels of attention of the bororo in the polo-base rondonópolis, the predominance of a model of services organization focusing on specialized high cost activities, in detriment of popular knowledge and traditional health practices. beyond that, the deliberate strategy of indigenous special sanitary districts was transformed, having emerged a structure similar to the disseminated notion of health district without considering the specificities of indigenous health. it confirmed the assumption that guided oriented this study, according to which there is a huge gap between what is stated and formalized in plans perpared according to rules and what effectively occurs in everyday services as well as in the flow of patients.
Estudo comparativo entre tratamento convencional e tratamento com heparina tópica para a analgesia de queimaduras
Barretto, Marcos Guilherme Praxedes;Costa, Maria da Graa Nascimento Figueira;Serra, Maria Cristina do Valle Freitas;Afiune, Jorge Barros;Praxedes, Hugo Eduardo Pinheiro;Pagani, Eduardo;
Revista da Associa??o Médica Brasileira , 2010, DOI: 10.1590/S0104-42302010000100016
Abstract: objective: this was a prospective, randomized, open-label study controlled by active comparator. the aim was to assess analgesic efficacy and overall tolerability of a burn treatment based on topic administration of unfractionated heparin. methods: fifty eight male or female patients were randomized for conventional treatment (group c) or topical heparin treatment (group th). ages of patients enrolled ranged from 18 to 55 years. they had 2nd and 3rd degree burns on 10% to 30% of the body surface (bs) caused by fire or scald, no hemorrhagic diseases, no hypersensitivity to heparin and less than 10% of the bs burned to 3rd degree. the group c had frequent debridement under anesthesia or analgesia and received silver sulfadiazine dressings. the group th had the first debridement and their wounds left open to receive 4200 iu of unfractionated heparin topically for each 1% of burned bs, three times daily. efficacy was evaluated from files of the 38 patients who completed the study according to demand of analgesic medications and response to the pain visual analog scale (vas). tolerability was evaluated from the files of all 58 randomized patients by the comparative incidence of adverse reactions. results: the group th demanded less analgesic medications (11.83 ± 9.38 per patient against 33.35 ± 20.63 for the c group, p<0.01), reported less pain in the vas, had less fever and more bleeding than group c. there was no difference in the incidence of local infection, septicemia and safety exams. conclusion: the group th presented less pain without important tolerability problems.
Efeito da linha?a (Linum usitatissimum L.) sob diferentes formas de preparo na resposta biológica em ratos
Marques, Anne y Castro;Hautrive, Tiffany Prokopp;Moura, Guilherme Barcellos de;Callegaro, Maria da Graa Kolinski;Hecktheuer, Luisa Helena Rychecki;
Revista de Nutri??o , 2011, DOI: 10.1590/S1415-52732011000100013
Abstract: objective: the objective of this investigation was to evaluate the effects of flaxseed (linum usitatissimum l.) prepared by different methods on the biological response of rats. methods: weaned rats (n=32) were divided into 4 groups of 8 animals each: standard feed, standard feed with 16% raw flaxseed, standard feed with 16% roasted flaxseed and standard feed with 7% flaxseed oil. the animals were weighted at every 3 days and after 23 days, rats were killed by heart puncture. the organs were immediately weighed and the blood was collected and stored at -18oc for biochemical assays (blood glucose, total cholesterol, high density lipoprotein-cholesterol, triglyceride and total protein). the feces were collected for analysis of moisture, excreted lipids and absorbed lipids. results: the groups did not differ with respect to weight gain, daily food intake, food efficiency ratio and organ weight. daily excretion, feces moisture and fecal lipid content were greater in the groups fed raw and roasted flaxseed than in the groups fed standard feed and flaxseed oil. except for high density lipoprotein-cholesterol, all other biochemical parameters presented statistical differences between treatments. conclusion: raw or roasted flaxseed or flaxseed oil has biological activity in rats: it reduces blood glucose, triglyceride and cholesterol levels. furthermore, rats fed raw and roasted flaxseed presented a significantly greater fecal volume and fecal lipid content.
Desigualdade social, crescimento urbano e hanseníase em Manaus: abordagem espacial
Imbiriba,Elsia Nascimento Belo; Silva Neto,Ant?nio Levino da; Souza,Wayner Vieira de; Pedrosa,Valderiza; Cunha,Maria da Graa; Garnelo,Luiza;
Revista de Saúde Pública , 2009, DOI: 10.1590/S0034-89102009005000046
Abstract: objective: to analyze the epidemiology of leprosy according to spatial distribution and living conditions of the population. methods: ecological study based on the spatial distribution of leprosy in the municipality of manaus, northern brazil, from 1998 to 2004. the 4,104 cases identified in the sistema de informa??es de agravos de notifica??o (sinan -national notification system) were georeferenced according to the addresses in the 1,536 urban census tracts through four different sources: postal service (73.7% of addresses found), property registration program (7.3%), family health program (2.1%), and instituto brasileiro de geografia e estatística (brazilian institute of geography and statistics) data sheet (1.5%). calculation of detection coefficient was performed based on the 2001 population. local empirical bayesian method was used for the spatial distribution analysis, in order to estimate leprosy risk, making rate variation shorter when they were calculated for small areas. logistic regression was employed to analyze the association between geographical distribution and risk factors. the incidence of cases in children under 15 (severity indicator) and social need index built from variables of the 2000 census were adopted as explicative variables. results: the mean coefficient of detection was hyperendemic in 34.0% of the census tracts, and very high in 26.7%. odds ratio was obtained for explicative variables and proved to be significant. low-income and incidence in children under 15 were combined to identify priority areas for intervention. conclusions: spatial analysis of leprosy showed that the distribution of the disease is heterogeneous and is more strongly present in regions inhabited by more vulnerable groups.
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