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Search Results: 1 - 10 of 407382 matches for " T. S. Marinho "
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Resveratrol Reverses the Impaired Vasodilation Observed in 2K-1C Hypertension through Endothelial Function Improvement  [PDF]
B. F. M. Pereira, A. C. Scalabrini, T. S. Marinho, C. R. K. Antonietto, C. B. A. Restini
Open Journal of Medicinal Chemistry (OJMC) , 2014, DOI: 10.4236/ojmc.2014.42004
Abstract:
Background: The production of endothelial-derived factors induces either vasoconstriction or vasodilation; nitric oxide (NO) is the most distinguished relaxing factor. Endothelial dysfunction is associated with hypertension. The partial loss in the NO-promoted vasodilation is due to its decreased bioavailability and/or to an activity reduction of endothelium NO synthase (eNOS). Reactive oxygen species (ROS), present in oxidative stress, seize NO and diminish its bioavailability. Transresveratrol (RESV) has been proved to increase NO and eNOS levels. Thus, RESV could be capable of improving NO dependent vascular relaxation on aortic rings isolated from treated 2K-1C animals through ROS damage reduction. Aim: Evaluate the effects of RESV treatment on the relaxation of aortic rings isolated from treated 2K-1C rats while focusing on the effects of the treatment on systolic blood pressure. Methods: Male Wistar rats (180 g) were grouped: two 2K-1C and two Sham groups, one of each was treated with RESV (20 mg/kg, gavage) dissolved in Tween 80 and one of each was treated with water plus Tween 80 (control) for six weeks. The rats had their systolic blood pressure (SBP) measured before and after the treatments. Vascular reactivity studies were conducted in order to observe and compare acetylcholine (ACh)-induced relaxations in the presence and absence of the NOS inhibitor L-NAME (10-4 mol/L). Results: SBP for 2K-1C was significantly reduced in the treated group (179.13 ± 4.90 mmHg, n = 23) when compared to the untreated group (196.66 ± 6.06 mmHg, n = 15, p < 0.01). The maximum relaxation of aortic rings isolated from the 2K-1C treated group showed a higher efficacy (116.63% ± 1.72%, n = 12) than that from the untreated group (85.97% ± 0.69%, n = 6, p < 0.001); L-NAME exposure was responsible for a significant decrease in each group’s maximum relaxation efficacy. Conclusions: SBP reduction observed after RESV treatment in rat renal hypertension could be due to the reestablishment of vascular relaxation depend of NO.
Fertirriga o Potássica na Cultura da Figueira no Semiarido Cearense
D. N. B. Rodrigues,T. V. A. Viana,A. B. Marinho,T. T. S. Ferreira
Revista Brasileira de Agricultura Irrigada , 2012, DOI: 10.7127/rbai.v6n300082
Abstract: O objetivo do trabalho foi avaliar as variáveis de produ o da figueira, cultivar Roxo de Valinhos, sob o efeito de diferentes doses de aduba o potássica, aplicadas via fertirriga o, nas condi es edafoclimáticas do Distrito de Irriga o Jaguaribe Apodi (DIJA), Limoeiro do Norte, Ceará. O experimento foi conduzido, em uma área experimental da empresa Figood, Quadra 3, lote 41, no município de Limoeiro do Norte (05o20’ S, 38o5’ W, 143 m) com o delineamento experimental em blocos ao acaso, com cinco tratamentos e quatro repeti es. Os tratamentos foram definidos em fun o da aduba o potássica: 50; 75; 100; 125 e 150% da recomenda o da análise de solo (RAS). Foram avaliadas as variáveis: peso dos frutos, número de frutos, diametro de frutos e produtividade. Os resultados obtidos demonstraram que a aplica o de doses diferenciadas de K2SO4 aplicadas via fertirriga o, n o alterou significativamente nenhuma das variáveis analisadas. Como os resultados n o foram significativos, o produtor deve aplicar a dosagem mínima analisada (50% da recomenda o da análise de solo) devido à grande quantidade de potássio existente no solo da regi o, além de reduzir os custos de produ o e diminuir o risco de saliniza o do solo
A Guide To Deal With Uncertainties In Software Project Management
M. L. M. Marinho,S. C. B. Sampaio,T. L. A. Lima,H. P. Moura
Computer Science , 2014, DOI: 10.5121/ijcsit.2014.6501
Abstract: Various project management approaches do not consider the impact that uncertainties have on the project. The identified threats by uncertainty in a projec day-to-day are real and immediate and the expectations in a project are often high. The project manager faces a dilemma: decisions must be made in the present about future situations which are inherently uncertain. The use of uncertainty management in project can be a determining factor for the project success. This paper presents a systematic review about uncertainties management in software projects and a guide is proposed based on the review. It aims to present the best practices to manage uncertainties in software projects in a structured way including techniques and strategies to uncertainties containment.
Brazilian Indigenous Children as Carriers of Diarrheagenic Escherichia coli Pathotypes  [PDF]
Carla V. L. Coelho, Tania A. T. Gomes, M?nica A. M. Vieira, Ana Cláudia P. Rosa, Diana P. Marinho, Bernadeth L. Von S?hsten, Cristiane S. Sanfins, André R. Santos Périssé, Adriana H. Regua-Mangia
Advances in Infectious Diseases (AID) , 2018, DOI: 10.4236/aid.2018.84017
Abstract: Introduction: Diarrheagenic Escherichia coli (DEC) is a relevant cause of diarrhea, particularly among infants and young children in developing countries. Methodology: We compared the frequency, antimicrobial resistance, adherence, enterovirulence and genetic diversity of DEC isolates from Guarani indigenous population under five living in distinct villages in Brazil. Results: Of the 314 E. coli isolates from 57 children, with and without diarrhea, 15% (48/314) were classified in DEC categories: aEPEC (56%, 27/48), EAEC (35%, 17/48) and ETEC (8%, 4/48). ETEC belonged to plylogroup A, EAEC to groups A, B1, B2 and D, and aEPEC to phylogroups A, B1, and B2. EAEC exhibited the aggregative adherence phenotype while ETEC and aEPEC the aggregative and undefined patterns. Multidrug-resistance was detected in aEPEC, ETEC and EAEC while extensive drug-resistance was found in EAEC and aEPEC. RAPD typing revealed a genetically diverse bacterial population. Conclusion: This is the first report regarding aspects of DEC in an indigenous Brazilian population, showing that Guarani children are DEC carriers and that antimicrobial resistance at high levels is widely disseminated among these enteropathogens.
Influência da glicose sobre o consumo de fenol por Aspergillus niger an 400 em reatores em batelada
Rodrigues, Kelly de Araújo;Sampaio, Glória Maria Marinho S.;Zaiat, Marcelo;Santaella, Sandra Tédde;
Engenharia Sanitaria e Ambiental , 2007, DOI: 10.1590/S1413-41522007000200013
Abstract: batch reactors were inoculated with aspergillus niger an 400 to remove phenol from synthetic media with and without glucose. the experiment was set by: five blank reactors (group 1) with media containing only phenol; five reactors (group 2) inoculated with fungi and with media containing only phenol; and five reactors (group 3) inoculated with fungi and with media containing phenol and glucose (5 g/l). these reactors were kept at 30°c under stirring of 200 rpm during 5 days. the mean initial concentrations of phenol and cod were 323 mg/l and 696 mg cod/l for the media without glucose, and 6058 mg cod/l for the media containing glucose. the reactors of group 2 removed 48% of phenol and 21% of cod, while the reactors of group 3 removed 100% of phenol and 93% of cod. there was no significant reduction of phenol and cod in the blank reactors. the assimilation was the main pathway of phenol removal.
Diagnósticos de enfermería como instrumentos en la formación del enfermero: una revisión de la literatura
Carvalho da Silva,C.M.; Lopes de Azevedo,S.; Cavalcanti Valente,G.S.; machado T. F. Rosas,A.M.; Marinho Chrizóstimo,M.;
Enfermería Global , 2009, DOI: 10.4321/S1695-61412009000300020
Abstract: this research presents a review of articles on the topic of "nursing diagnosis," published during the years 2000-2007 and refers to a trend which has increasingly been mentioned in practice and in medical journals: the study is based on evidence. to this end, we used the methodology of a bibliographic search, using data sources such as the national nursing journals indexed in the lilacs database (latin-american and caribbean health sciences literature), medline (international science literature health) scielo (scientific electronic library online). we chose to use the term "nursing diagnosis," that was found in 65 articles. for the analysis it was revealed the nature of the items, the assessment of the authors and how they evaluated the diagnosis teaching of nursing. it highlighted the main theoretical references, issues of proportionality and the years of the publication in question. it can be concluded that the production of nursing articles, within the theme of the diagnosis, has been made even in small quantities, which indicates the need of production and application of these articles in the fields of teaching and practice.
Response activity of alveolar macrophages in pulmonary dysfunction caused by Leptospira infection
Marinho, M.;Oliveira-Júnior, I. S.;Perri, S. H.V;Peiró, J. R.;Pavanelli, T. F.;Salom?o, R.;
Journal of Venomous Animals and Toxins including Tropical Diseases , 2008, DOI: 10.1590/S1678-91992008000100005
Abstract: leptopspirosis is a syndrome with different clinical manifestations including the most severe and often fatal forms of pulmonary disease of unknown etiology. pulmonary injury during the inflammatory process has been associated with the excessive number of alveolar macrophages (ams) and polymorphonuclear leukocytes stimulated in the lungs and with the production of reactive oxygen and nitrogen intermediates and other inflammatory mediators. the aim of the present work was to evaluate the cellular immune response of ams or inflammatory cells of hamsters during leptospirosis. the activity of ams was determined by measuring nitric oxide (no) and protein production as well as inflammatory cell infiltration in bronchoalveolar lavage (bal) fluid. pulmonary activity during infection was monitored by measuring ph, pressure of oxygen (pao2), and pressure of carbon dioxide (paco2) in blood samples. cellular immune response and its role in the genesis of leptospirosis have been incriminated as the main causes of tissue and pulmonary injuries, which consequently lead to the pulmonary dysfunction in severe cases of leptospirosis. the present results show a low production of no in both supernatant of alveolar macrophage culture and bal. in the latter, protein production was high and constant, especially during acute infection. total and differential cell count values were 2.5x106 on day 4; 7.3x106 on day 21; and 2.3x106 on day 28 after infection, with lymphocytes (84.04%) predominating over neutrophils (11.88%) and monocytes (4.07%). arterial blood gas analysis showed pulmonary compromising along with the infectious process, as observed in parameter values (mean±sd) evidenced in the infected versus control group: pao2 (60.47mmhg±8.7 vs. 90.09mmhg±9.18), paco2 (57.01mmhg±7.87 vs. 47.39mmhg±4.5) and ph (7.39±0.03 vs. 6.8±1.3). results indicated that leptospira infection in hamsters is a good experimental model to study leptospirosis. however, some of the immune parameters showed var
Manejo de plantas daninhas em maracujazeiro amarelo cultivado com aduba??o química e organica
Ogliari, J.;Freitas, S.P.;Carvalho, A.J.C.;Ferreira, L.R.;Marinho, C.S.;Thiebaut, J.T.L.;
Planta Daninha , 2007, DOI: 10.1590/S0100-83582007000400019
Abstract: the objective of this work was to evaluate different types of weed management in passion fruit culture under chemical and organic fertilization. the experimental design was in randomized blocks with 15 treatments, arranged in a splip-splot design, with four repetitions containing 10 plants each. the treatments consisted of three types of fertilization (organic, chemical and chemical + organic) and five types of weed management in each subplot (hand-hoeing, without hand-hoeing, diuron (pre-planting) + glyphosate (postemergence), diuron (pre-planting) + msma (postemergence) and diuron (pre-planting) + (diuron + paraquat) (postemergence). diuron applied in pre-planting induced phytotoxicity symptom in the leaves around 20 to 26 days after planting (dap). however, it was more evident in plants undergoing chemical fertilization. the treatments with chemical + organic fertilization associated to hand-hoeing, diuron (pre-planting) + glyphosate (postemergence) and diuron (pre-planting) + (diuron + paraquat) (postemergence) provided the highest fruit productivity. for the cultivation using organic fertilization, hand-hoeing promoted the highest productivity. on the other hand, under, chemical fertilization, highest crop production and weed control were observed in the treatment diuron (pre) + glyphosate (post).
Aduba??o complementar para a mexeriqueira 'Rio' em sistema de cultivo organico
Marini, Fillipe S.;Marinho, Cláudia S.;
Revista Brasileira de Engenharia Agrícola e Ambiental , 2011, DOI: 10.1590/S1415-43662011000600004
Abstract: the aim of this work was to evaluate the effect of complementary fertilization with the biofertilizer supermagro, cow urine and cassava wastewater in the production and levels of nutrients in the leaves of willowleaf mandarim 'rio' (citrus deliciosa tenore) in organic cultivation system. the experimental design used was the randomized blocks, with five replications. all plants were fertilized with cow manure and the applied treatments were complementary to this fertilization. ten treatments were constituted, by fertilizer types and by modes of application (soil, foliar spray or both) plus a control. the fruits were harvested in 2006 and 2007. the nutrient content in leaves was determined in 2005, 2006 and 2007. the complementary fertilization did not affect the fruit production. however, the cow urine applied on soil, with or without foliar spray, and cassava wastewater, independently of mode of application, increased s contents of leaves. the biofertilizer supermagro when applied in soil increased b content of leaf, and when it was applied by foliar sprays increased zn content of leaves.
Efeito de cascas de café e de arroz dispostas nas camadas do solo sobre a germina??o e o crescimento inicial do caruru-de-mancha
Santos, J.C.F.;Souza, I.F.;Mendes, A.N.G.;Morais, A.R.;Concei??o, H.E.O.;Marinho, J.T.S.;
Planta Daninha , 2001, DOI: 10.1590/S0100-83582001000200007
Abstract: studies of plant residue effects involving mulches to control weeds in perennial crops are difficult to carry out due to the need to differentiate between allelopathy and competition. many researches, nowadays, refer to criteria proving allelopathy. this work was established under greenhouse conditions to determine the allelopathic effects of coffee and rice husks on amaranthus viridis through their arrangements in soil layers. the experimental design was a randomized block with four replications, arranged in a 3 x 3 factorial scheme, with coffee and rice husks and expanded vermiculite being one factor and their residues placed on the top and incorporated into the soil surface and into the bottom, as the other factor. one additional treatment without mulching was used. overall, plant residues inhibited seed germination and stimulated growth of slender amaranth. rice husk showed lower emergent velocity index and seed germination than coffee husk. coffee husk placed on the top provided greater growth and higher dry matter weight of slender amaranth, followed by husk incorporation into the soil surface.
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