OALib Journal期刊

ISSN: 2333-9721




2020 ( 30 )

2019 ( 41 )

2018 ( 65 )

2017 ( 56 )


匹配條件: “Dione Pereira Cardoso” ,找到相關結果約25645條。
Avalia o do crescimento e da produtividade da mamoneira BRS 149 Nordestina em dois níveis tecnológicos
Valdere Martins dos Santos,Henrique Guilhon de Castro,Dione Pereira Cardoso,Saulo de Oliveira Lima
Journal of Biotechnology and Biodiversity , 2011,
Abstract: This study aimed to evaluate the growth and yield of castor bean cultivar Northeastern in environments oflow tech and high technological level. The design was randomized blocks in factorial scheme, with fiverepetitions. The treatments consisted of two levels of technology and five sampling times. In the lowtechnological level, fertilization was not used and crop irrigation and sowing was done in pits. In thehigh technological level, we performed a chemical fertilization, liming the soil, plowing, disking, plantingin furrows and conventional sprinkler irrigation. Characteristics were evaluated plant height, stemdiameter, leaf area, fresh leaf and stem dry mass of leaf and stem, leaf area ratio, leaf area index andproductivity. There were significant differences between the levels of technology in all traits. In the lowtechnological level the absence of fertilization at planting and lack of irrigation during the period ofconducting the experiment, hindered the development of plants. With respect to productivity, the hightechnological level showed higher productivity, 3.794 kg ha-1. In the low technological level, the yieldwas 1.683 kg ha-1.
Paulo Fernando Trugilho,Fábio Akira Mori,José Tarcísio Lima,Dione Pereira Cardoso
CERNE , 2003,
Abstract: The objective of this study was to determine the tannin contents in the bark oftwenty-five species of Eucalyptus through two extraction methods, one using hot water andthe other a sequence of toluene and ethanol. The results showed that the extraction methodspresented significant differences in the tannin contents. The method using the sequencetoluene and ethanol, for most of the species, promoted a larger extraction of tannin. The hotwater method presented higher contents of tannin for Eucalyptus cloeziana (40,31%),Eucalyptus melanophoia (20,49%) and Eucalyptus paniculata (16,03%). In the toluene andethanol method the species with higher tannin content was Eucalyptus cloeziana (31,00%),Eucalyptus tereticornis (22,83%) and Eucalyptus paniculata (17,64%). The Eucalyptuscloeziana presented great potential as commercial source of tannin, independent of theextraction method considered.
Modelagem da prote o do solo por plantas de cobertura no sul de Minas Gerais = Modeling of soil protection by cover crops in southern Minas Gerais, Brazil.
Diego Antonio Fran?a de Freitas,Marx Leandro Naves Silva,Nilmar Eduardo Arbex de Castro,Dione Pereira Cardoso
Agro@mbiente On-line , 2012,
Abstract: A cobertura do solo é o fator de maior importancia relativa no controle da eros o hídrica. Assim, objetivou-se no presente estudo elaborar a modelagem da cobertura vegetal de vinte e quatro plantas de cobertura, em diversos sistemas de plantio e históricos de uso, com potencial para cultivo no Sul de Minas Gerais. Para avalia o da cobertura vegetal foram realizadas avalia es no campo utilizando uma régua de classifica o da cobertura vegetal, sendo o delineamento experimental inteiramente casualizado, com três repeti es, utilizado neste experimento. As plantas cultivadas sobre a palhada de feij oirrigado apresentaram alto índice de cobertura do solo, o que pode estar relacionado à maior disponibilidade de nutrientes deixado por esta cultura na palhada e a maior reserva de água no solo, promovido pela irriga o do feij o. O milheto cultivado em nível e sobre a palhada de milheto e feij o-de-porco apresentou o menor índice de cobertura entre as plantas testadas. Na regi o sul de Minas Gerais os padr es de chuvas ocorrem em maior quantidade nos períodos de outubro a mar o, com eleva o em dezembro e janeiro. Neste período o solo deve estar protegido do impacto da gota de chuva, pois o risco de eros o hídrica é maior. Assim, a utiliza o das plantas de cobertura é de grande importancia, pois estas protegem o solo do impacto direto dasgotas de chuvas e diminuem os picos de temperatura do solo, sendo que estas devem ser cultivadas, preferencialmente, sobre a palhada de feij o.The ground cover is the most important factor relative to control erosion. Thus, the objective of this study was to develop a model plant cover for 24 cover crops used in several cropping systems and historical use, with potential for cultivation in southern Minas Gerais State, Brazil. To evaluate the vegetation cover field assessments using the strip land cover classification. A completely randomized design with three replications was used in this experiment. Plants grown on irrigated bean straw demonstrated a high rate of soil cover, which may be related to the increased availability of nutrients left by this culture in the straw and the largest water reserve in the soil, promoted by irrigation of beans. The level and millet grown on the millet straw and jack-bean had the lowest rate of coverage among the plants valuated. In the region southern of Minas Gerais, the precipitation pattern is predominant duirng October to March, with an increase in December and January. In this period the soil should be protected from raindrop impact, because the risk of erosion is greater. Thus, the u
Idéias para uma semiologia do poder
Dirce Dione Bravo,Elza Ant?nia Pereira Cunha
Sequência : Estudos Juridicos e Politicos , 1981,
Os congressos brasileiros de geografia entre 1909 e 1944
Cardoso, Luciene Pereira Carris;
História, Ciências, Saúde-Manguinhos , 2011, DOI: 10.1590/S0104-59702011000100006
Abstract: this analysis of the brazilian geography congresses sponsored by the geography society of rio de janeiro between 1909 and 1944 identifies commonalities as well as differences over the years. given how these scientific events focused on both the state of the art within the field as well as on its overall development, such an analysis serves as a good thermometer for measuring the social, economic, and political changes underway in brazil.
Vossa Excelência um leitor/You have a reader
Silvana Dias Cardoso Pereira
ETD : Educa??o Temática Digital , 2007,
Abstract: PEREIRA, Silvana Dias Cardoso. Vossa Excelência um leitor. 133fl. 2007. Disserta o (Mestrado em Educa o) – Faculdade de Educa o, Universidade Estadual de Campinas, Campinas. 2007.
Burned area mapping with conventional and selective principal component analysis
José Miguel Cardoso Pereira
Finisterra - Revista Portuguesa de Geografia , 1992,
Notice on a Case Study on the Utilization of Wind Energy Potential on a Remote and Isolated Small Wastewater Treatment Plant  [PDF]
Jo?o Fernando Pereira Gomes, Pedro Manuel Cardoso
Smart Grid and Renewable Energy (SGRE) , 2011, DOI: 10.4236/sgre.2011.23033
Abstract: Small wastewater treatment plants (WWTP) are frequently located, by necessity, in remote and isolated sites, which increases the difficulty of its energy supply. Some of them are located near the seaside, in environmental sensible zones, and due to tourism activity of these sites, seasonal effects related with population size fluctuation can occur, which can originate certain inefficiencies concerning WWTP design and energy supply. The objective of this paper is to describe a step by step procedure for evaluation of the wind potential of sites that are dependent of in-situ energy generation, as well as, a case study on the utilization of the potential wind energy in Magoito WWTP (5000 p.e.). The employed methodology comprised the collection of one year of in-situ wind data and its validation by comparison with historical data of about 10 years of a nearby anemometric station. The data provided by the two anemometric stations was statistically treated. It allowed the analysis of the results from the two stations are promissory in terms of wind availability and velocity. Finally, it comprised the simulation of the local wind conditions for a considerable larger area in order to find the best site for locating a wind turbine.
Spy out to Protect: Sensing Devices for Wildlife Virtual Fencing  [PDF]
Rita Anastácio, Sérgio Cardoso, Mário Jorge Pereira
Open Journal of Ecology (OJE) , 2018, DOI: 10.4236/oje.2018.83013
Abstract: To avoid wildlife-human conflict several solutions are used, like electrical fences, the most expensive solution. Nowadays, technology enables alternative and cheaper approaches for conservation projects. A technological device was developed to detect elephants, moving on their habitat, and predict and react by avoiding confrontation with man. The devices were tested in field experiments, and proved to be efficient in capturing floor vibration, and air-sound signals. Collected data also enabled the estimation of the vibration-source by calculus (using triangulation), revealing the importance of the methodology for real-time location and tracking of high mass animals (e.g. elephants). Building up a mesh of devices, separated 25 m from each other, is estimated as possible to monitor and identify different animals (by discriminating patterns) in an area, like a virtual fencing system. Though the devices may be effective for animal behaviour research, or even animal communication analysis, or other Biology field, other applications outside Biology are possible for them, like monitoring of: rock-falling, micro seismic railway, infrastructures, and people movements.
Determination of fluconazole in serum and amniotic fluid of rats by gas-chromatography/mass spectometry (GC/MS)
Lima, Dione Mar?al;Nunes Júnior, Guilhermino Pereira;Ferri, Pedro Henrique;Santos, Suzana Costa;
Revista Brasileira de Ciências Farmacêuticas , 2005, DOI: 10.1590/S1516-93322005000200010
Abstract: rats treated with oral dose of 100 mg/kg of fluconazole during pregnancy had their serum and amniotic fluid quantified for this drug using a gc/ms method. fluconazole was extracted with ethyl acetate from samples and analysed by a gc-ms shimadzu qp5050a system using a cbp-5 fused silica capillary column. tioconazole was used as internal standard. calibration curve was linear within the range 10.0 - 300.0 μg/ml. the limit of quantification was 0.1 μg/ml and no interference was observed in the blank serum and amniotic liquid. the mean concentrations of the drug in the serum and amniotic fluid were 206.01 ± 105.25 μg/ml and 125.34 ± 65.24 mg/ml, respectively. this procedure showed to be sensitive and efficient enough for the use in teratogenic studies of fluconazole and other azole drugs.

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