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Emergence and initial development of Mimosa caesalpiniifolia Benth. seedlings for different substrates = Emergência e desenvolvimento inicial de plantulas de Mimosa caesalpiniifolia Benth. em fun o de diferentes substratos
Narjara Walessa Nogueira,Maria Clarete Cardoso Ribeiro,R?mulo Magno Oliveira de Freitas,Marcos Yoshio Matuoka
Agro@mbiente On-line , 2012,
Abstract: The present study assessed the effects of different substrates on the emergence and initial development of Mimosa caesalpiniifolia Benth seedlings. For this purpose an experiment was done in a greenhouse of the Department of Plant Sciences of Universidade Federal Rural do Semi-árido (UFERSA), Mossoró-RN. The statistical design was completely randomized (CRD), where treatments were composed of nine substrates (T1: vermiculite, T2: coconut fiber, T3: trade hortimix , T4: vermiculite, coconut fiber and compost (1: 1:1), T5: coconut fiber and compost (1:1), T6: coconut fiber and compost (1:2),T7: vermiculite and compost (1:1), T8, vermiculite and compost organic (1:2) and T9: organic compost). All treatments were represented by four replications containing 25 seeds. The following variables were evaluated: emergency percentage, emergence rate index, length of shoot and root, stem diameter, dry leaves, stem, root and total leaf area, specific leaf area, leaf area ratio, and leaf weight ratio. Data were submitted to the Tukey test at 5% probability. The coconut fiber substrates, commercial hortimix and vermiculite proved superior promoted good emergence and early development of seedlings. The mixture of vermiculite, coconut fiber and compost (1:1:1), coconut fiber and compost (1:1), coconut fiber and compost (1:2) and organic compost and vermiculite (1: 1) was not shown to be adequate for the cultivation of seedlings. There was no emergency in the pure organic compound in the mixture of compost and vermiculite (1:2).Key words - Vermiculite. Organic compost. Coconut fiber. Sabiá. Substrates. = Objetivou-se com o presente trabalho avaliar o efeito de diferentes substratos na emergência e desenvolvimento inicial de plantulas de sabiá (Mimosa caesalpiniifolia Benth.). Para isso, foi instalado um experimento em casa de vegeta o do Departamento de Ciências Vegetais da Universidade Federal Rural do Semi-árido (UFERSA), Mossoró-RN. O delineamento estatístico utilizado foi inteiramente casualizado (DIC) e os tratamentos foram compostos por nove substratos (T1: vermiculita; T2: fibra de coco; T3: comercial hortimix ; T4: vermiculita, fibra de coco e composto organico (1:1:1); T5: fibra de coco e composto organico (1:1); T6: fibra de coco e composto organico (1:2); T7: vermiculita e composto organico (1:1); T8:vermiculita e composto organico (1:2) e T9: composto organico), com quatro repeti es de 25 sementes. As variáveis avaliadas foram: porcentagem de emergência; índice de velocidade de emergência; comprimento de parte aérea e de raiz; diametro do colo; matéria seca
Efeito da salinidade na emergência e crescimento inicial de plantulas de flamboyant Effect of salinity on the emergence and initial growth of flamboyant seedlings (Delonix regia (Bojer exHook.) Raf.)
Narjara Walessa Nogueira,Jailma Suerda Silva de Lima,R?mulo Magno Oliveira de Freitas,Maria Clarete Cardoso Ribeiro
Revista Brasileira de Sementes , 2012, DOI: 10.1590/s0101-31222012000300014
Abstract: Objetivou-se avaliar o efeito de diferentes concentra es salinas na água de irriga o na emergência e desenvolvimento inicial de plantulas de flamboyant (Delonix regia (Bojer ex Hook.) Raf.). O experimento foi desenvolvido em casa de vegeta o do Departamento de Ciências Vegetais da Universidade Federal Rural do Semiárido - UFERSA, Mossoró-RN. O delineamento estatístico utilizado foi o inteiramente casualizado, com cinco tratamentos e quatro repeti es, com 25 sementes cada. Os tratamentos consistiram das concentra es salinas (0,5; 1,5; 3,0; 4,5 e 6,0 dS m-1), que foram obtidas através da adi o de NaCl em água de forma que as solu es fossem calibradas para as condutividades elétricas pré-estabelecidas. As variáveis avaliadas foram: porcentagem de emergência de plantulas, índice de velocidade de emergência, área foliar, altura de plantula, número de folíolos, comprimento de raiz e massa seca da parte aérea. A salinidade interfere negativamente em todas as variáveis avaliadas de forma proporcional ao seu aumento na água de irriga o das plantulas de flamboyant, sendo o maior desenvolvimento das plantulas obtido na dose 0,5 dS m-1. The objective of this study was to evaluate the effect of different salt concentrations in irrigation water on the emergence and initial development of flamboyant (Delonix regia (Bojer ex Hook.) Raf.) seedlings. The experiment was conducted in the greenhouse of the Department of Plant Sciences, Universidade Federal Rural do Semiárido - UFERSA, Mossoró-RN. The statistical design was completely randomized with five treatments and four replicates, each with 25 seeds. The treatments consisted of salt concentrations (0.5, 1.5, 3.0, 4.5 and 6.0 dS m-1), obtained by adding NaCl to water so that the solutions were calibrated to the pre-established electrical conductivity values. The variables measured were: percentage of seedling emergence, rate of emergence, leaf area, seedling height, number of leaves, root length and shoot dry weight. Salinity negatively affects all variables directly proportional to its increase in the irrigation water, with the greatest seedling development at a dose of 0.5 dS m-1.
Armazenamento de sementes de Catanduva (Piptadenia moniliformis Benth.) em diferentes ambientes e embalagens
Benedito, Clarisse Pereira;Ribeiro, Maria Clarete Cardoso;Torres, Salvador Barros;Camacho, Ramiro Gustavo Valela;Soares, Adrielle Naiana Ribeiro;Guimar?es, Louise Medeiros Silva;
Revista Brasileira de Sementes , 2011, DOI: 10.1590/S0101-31222011000100003
Abstract: this study aimed to evaluate the viability of catanduva seeds stored for 210 days under controlled and uncontrolled environmental conditions (laboratory), in plastic, paper and glass packaging. the experimental design was completely randomized in a sub-subdivided plot, where the main plot were the storage conditions (laboratory and cold room) and sub-plots consisted of the packaging (plastic and paper bags and glass bottles) and sub-sub-plots of the storage times (0, 30, 60, 90, 120, 150, 180 and 210 days). the tests were conducted in the laboratory and greenhouse. evaluations were made every 30 days of the percentage of germination and the rate of germination velocity in the laboratory and of seedling emergence in the greenhouse. the seed viability of catanduva decreased as a function of storage time during the 210 days. catanduva seeds (piptadenia moniliformis benth.) can be packed for 210 days either in glass bottles or plastic bags without losing their physiological potential. the controlled environment (18-20 oc, ±60% rh) is the most suitable.
Productive performance of carrot and rocket cultivars in strip-intercropping system and sole crops
Lima, J. Suerda Silva-de;Bezerra-Neto, Francisco;Negreiro, Maria Zuleide-de;Ribeiro, M. Clarete Cardoso-;Barros-Júnior, Aurélio P.;
Agrociencia , 2010,
Abstract: a great challenge for the success of intercropping systems is the ability in determining which species should be used and, especially, the management of the cultivars or varieties to be associated. the objective of the present research was to evaluate the effect of the association of two cultivars of carrot (daucus carota l.) with two cultivars of rocket (eruca sativa m.) in two crops in strip-intercropping system and sole crops on the productive performance of these vegetables. the experimental design was randomized complete blocks in a 2×2+2 factorial with five replications. treatments were the association of two carrot cultivars (brasília and esplanada) with two rocket cultivars (cultivada and folha larga) plus two additional treatments (two carrot cultivars or two rocket cultivars as sole crops in each block). the major results were: the rocket cultivars cultivada and folha larga showed similar (p>0.05) productive performances in sole crop and intercropping system. the best performance (p<0.05) of the rocket was observed in the second cultivation. the carrot cultivar brasília showed the best productive performance (p<0.05) in both sole crop and intercropping system. the intercropped systems of carrot brasília + rocket cultivada and carrot brasília + rocket folha larga were the best association based on agri-economic efficiency.
Desafios e perspectivas para a publica??o de artigos - uma reflex?o a partir de autores e editores
Kirchhof, Ana Lucia Cardoso;Lacerda, Maria Ribeiro;
Texto & Contexto - Enfermagem , 2012, DOI: 10.1590/S0104-07072012000100021
Abstract: publishing is a requirement for any professional who crave to be in tune with the world of science. we propose in this article do a reflection on some aspects of this theme, highlighting those that may contribute to an effective proposition to journals. we are considered key aspects in the systematization of this task order to provide more researchers are engaged in it with efficiency. we brought knowledge and strategies to widen the debate reported in the current literature. in this, we find statements of both authors and editors of journals in nursing and other areas. for this purpose we designed this article on following steps: to generate and consolidate an idea, defining partnerships, focus on the reader, choose the journal, organize your article, ethical issues and sent for publication.
Desafios e perspectivas para a publica o de artigos - uma reflex o a partir de autores e editores
Ana Lucia Cardoso Kirchhof,Maria Ribeiro Lacerda
Texto & Contexto - Enfermagem , 2012,
Abstract: La publicación es un requisito para cualquier profesional que aspira a estar en sintonía con el mundo de la ciencia. Además, las actividades de consumo y producción de conocimientos son inherentes a cualquier profesión. Nos proponemos en este artículo una reflexión sobre algunos aspectos de este tema, destacando aquellos que pueden contribuir a una investida efectiva en revistas. Se consideran aspectos clave en la sistematización de este trabajo para que un mayor número de trabajadores se dediquen a ella con eficiencia. Es presentada estrategias a enriquecer la reflexión e divulgadas en la literatura actual, con declaraciones de ambos autores y editores de revistas de enfermería y otras áreas. Para ello se dise ó este artículo en los siguientes pasos: generar y consolidar una idea, la definición de alianzas, centrarse en el lector, elegir la revista, organizar su artículo, aspectos éticos y presentación de la publicación.
Campa as de prevención del cáncer en el contexto de la Publicidad de Servicio Público: un análisis de los mensajes y de los recursos creativos.Campanhas de preven o do cancro no contexto da Publicidade de Servi o Púbico: uma análise das mensagens e dos recursos criativos.Campaigns for cancer prevention in the context of Public Service Advertising: an analysis of messages and creative resources
Paulo Ribeiro Cardoso,Maria van Schoor
Revista Mediterránea de Comunicación , 2011,
Abstract: The present study aims to understand the structure of preventive campaigns against cancer focusing on the arguments that are used and the way they are transmitted. The research work comprised a content analysis of 72 advertising films produced in various continents representing, in general, the different approaches used nowadays in this field. We can point out, as main conclusions, that the cancer prevention campaigns use a considerable percentage of positive approaches, do not use fear appeals or display the shocking consequences as a result of negligent behaviour. The main messages emphasize prevention through creative formats that intend to establish an empathy and proximity with the target audience.Con este trabajo pretendemos comprender la estructura de las campa as de prevención del cáncer a nivel internacional, incidiendo en el análisis de los argumentos utilizados y la forma en la que estos son transmitidos. Realizamos un análisis de contenido de 72 anuncios publicitarios audiovisuales procedentes de diversos continentes y que ilustran, en gran parte, los diferentes abordajes utilizados actualmente en este campo. Fue posible constatar que las campa as de prevención del cáncer utilizan un porcentaje considerable de anuncios desde una perspectiva positiva, en los cuales no se utiliza el miedo ni consecuencias impactantes como resultado de los comportamientos de riesgo. En su mayoría, los anuncios utilizan un abordaje positivo, desde una óptica preventiva, a través de formatos creativos que procuran una gran empatía y proximidad con los destinatarios del mensaje.Este estudo tem como objectivo comprender a estrutura das campanhas de preven o contra o cancro, a nível internacional, incidindo a sua análise sobre os argumentos utilizados e sobre a forma como s o transmitidos. Na componente empírica do trabalho, realizou-se uma análise de conteúdo de 72 filmes publicitários provenientes de diversos continentes e que ilustram, em grande parte, as diferentes abordagens utilizadas actualmente neste campo. Como principais conclus es, foi possível constatar que as campanhas de preven o do cancro utilizam uma considerável percentagem de anúncios com um enquadramento positivo, nos quais n o é usado o medo nem apresentadas consequências chocantes como resultado dos comportamentos de risco. As principais mensagens apontam para uma perspectiva preventiva através de formatos criativos que procuram uma grande empatia e proximidade com o público-alvo.
Stability of the Transthyretin Molecule as a Key Factor in the Interaction with A-Beta Peptide - Relevance in Alzheimer's Disease
Carlos A. Ribeiro, Maria Jo?o Saraiva, Isabel Cardoso
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0045368
Abstract: Transthyretin (TTR) protects against A-Beta toxicity by binding the peptide thus inhibiting its aggregation. Previous work showed different TTR mutations interact differently with A-Beta, with increasing affinities correlating with decreasing amyloidogenecity of the TTR mutant; this did not impact on the levels of inhibition of A-Beta aggregation, as assessed by transmission electron microscopy. Our work aimed at probing differences in binding to A-Beta by WT, T119M and L55P TTR using quantitative assays, and at identifying factors affecting this interaction. We addressed the impact of such factors in TTR ability to degrade A-Beta. Using a dot blot approach with the anti-oligomeric antibody A11, we showed that A-Beta formed oligomers transiently, indicating aggregation and fibril formation, whereas in the presence of WT and T119M TTR the oligomers persisted longer, indicative that these variants avoided further aggregation into fibrils. In contrast, L55PTTR was not able to inhibit oligomerization or to prevent evolution to aggregates and fibrils. Furthermore, apoptosis assessment showed WT and T119M TTR were able to protect against A-Beta toxicity. Because the amyloidogenic potential of TTR is inversely correlated with its stability, the use of drugs able to stabilize TTR tetrameric fold could result in increased TTR/A-Beta binding. Here we showed that iododiflunisal, 3-dinitrophenol, resveratrol, [2-(3,5-dichlorophenyl)amino] (DCPA) and [4-(3,5-difluorophenyl)] (DFPB) were able to increase TTR binding to A-Beta; however only DCPA and DFPB improved TTR proteolytic activity. Thyroxine, a TTR ligand, did not influence TTR/A-Beta interaction and A-Beta degradation by TTR, whereas RBP, another TTR ligand, not only obstructed the interaction but also inhibited TTR proteolytic activity. Our results showed differences between WT and T119M TTR, and L55PTTR mutant regarding their interaction with A-Beta and prompt the stability of TTR as a key factor in this interaction, which may be relevant in AD pathogenesis and for the design of therapeutic TTR-based therapies.
Synergy of combined Doxycycline/TUDCA treatment in lowering Transthyretin deposition and associated biomarkers: studies in FAP mouse models
Isabel Cardoso, Diana Martins, Tania Ribeiro, Giampaolo Merlini, Maria Saraiva
Journal of Translational Medicine , 2010, DOI: 10.1186/1479-5876-8-74
Abstract: In the present work we evaluated different doxycycline administration schemes, including different periods of treatment, different dosages and different FAP TTR V30M animal models. Evaluation included CR staining, immunohistochemistry for TTR, metalloproteinase 9 (MMP-9) and serum amyloid P component (SAP). We determined that a minimum period of 15 days of treatment with a 8 mg/Kg/day dosage resulted in fibril removal. The possibility of intermittent treatments was also assessed and a maximum period of 15 days of suspension was determined to maintain tissues amyloid-free. Combined cycled doxycycline and TUDCA administration to mice with amyloid deposition, using two different concentrations of both drugs, was more effective than either individual doxycycline or TUDCA, in significantly lowering TTR deposition and associated tissue markers. The observed synergistic effect of doxycycline/TUDCA in the range of human tolerable quantities, in the transgenic TTR mice models prompts their application in FAP, particularly in the early stages of disease.Familial Amyloid Polyneuropathy (FAP) is characterized by the deposition of Transthyretin (TTR) amyloid fibrils in several organs, with special involvement of the peripheral nerve. Therapy is presently based on liver transplantation in selected patients, although progression of amyloid cardiomyopathy after liver transplantation is a serious and unsolved concern. FAP is characterized by early impairment of temperature and pain sensation in the feet, autonomic dysfunction leading to malabsorption and emaciation. Amyloid deposits can occur in any part of the peripheral nervous system, including nerve trunks, plexus and sensory and autonomic ganglia. TTR V30M is the most common TTR mutation associated with FAP but over 100 mutations are identified and associated with disease [1].Animal models for a variety of disorders have been widely used to investigate mechanisms leading to disease and to assess possible therapeutic strategies.
Aconteceu, virou manchete
Andrade, Ana Maria Ribeiro de;Cardoso, José Leandro Rocha;
Revista Brasileira de História , 2001, DOI: 10.1590/S0102-01882001000200013
Abstract: in the 50?s the science press for the general public was almost absent in brazil. radio broadcast was the main channel for mass communication. considering that weak articulation of science and society has historical roots this work examines how the variety and entertainment weekly magazine manchete presented science to its readers. in a first approach the editorial practice, characteristics and the frequency of science and technology news in manchete is analyzed compared to the magazine o cruzeiro, showing the contribution of manchete to the development of scientific thought.
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