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Search Results: 1 - 10 of 11154 matches for " Elena;Muniz "
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Sele??o de antagonistas fúngicos a Fusarium solani e Fusarium oxysporum em substrato comercial para mudas
Ethur, Luciana Zago;Blume, Elena;Muniz, Marlove Fátima Bri?o;Flores, Maria Georgina Veiga;
Ciência Rural , 2007, DOI: 10.1590/S0103-84782007000600047
Abstract: tests in vitro are usually used for the initial selection of biocontrol agents against soil fungi, lacking methodologies using soil and/or substrate. the objective of this research was to accomplish the mass selection of fungi isolates antagonistic to f. solani and f. oxysporum in commercial substrate for seedlings. two experiments were conducted, with the pathogens f. solani and f. oxysporum, and 98 possible antagonistic fungi of the genera penicillium claviforme, penicillium, aspergillus and cladosporium. the suspension of the pathogens was inoculated in the substrate, in plastic cups, and the suspension of the other fungi was added five days later. the number of colony-forming unit of f. solani and f. oxysporum/g of substrate was counted after nine days. of the 98 isolates used against f. solani, 43% did not differ from the control, and 57% reduced its development in the substrate, with the three best isolates belonging to the genus penicillium claviforme. the three isolates of penicillium claviforme selected for f. solani were also efficient against f. oxysporum.
Influência da assepsia e do substrato na qualidade de sementes e mudas de espécies florestais
Muniz, Marlove Fátima Bri?o;Silva, Lorenzo Melo e;Blume, Elena;
Revista Brasileira de Sementes , 2007, DOI: 10.1590/S0101-31222007000100019
Abstract: the objective of this study was to evaluate the effect of seed treatment and substrate composition on the seed and seedling quality of tree species. the species were "acácia" (cassia multijuga), "angico" (parapiptadenea rigida), "canafístula" (pelptophorum dubium), "maricá" (mimosa bimucronata) and "timbaúva" (entereolobium contortisiliquum). the seeds were treated with a solution of sodium hypochlorite at 1%, for 5 minutes and another seed lot did not receive any type of pre-treatment. for seedling production, two substrate compositions were used: substrate a, consisting of 50% soil and 50% organic substance and substrate b, consisting of 35% pine debris and degraded organic substance, 35% soil and 30% burnt rice husk. seed health, germination, seedling emergence ate seven and 28 days, cool weight, dry weight, length and leaf number were assessed. the main fungi associated with the seeds was aspergillus spp., penicillium spp. and alternaria spp., with higher incidences in the non pre-treated seeds. in the evaluation of the seedling quality, substrate a was shown to the better than substrate b, producing seedlings with high biological performance. the seed asepsis showed positive effect on the seed sanitary quality and in the initial phase of the seedling development. in the final phase, the effect of the substrate was preponderant, where the substrate composition made a difference.
An Overview of the Homeschooling in Brazil: Analysis of Its Principles and Attempts of Legalization  [PDF]
Luciane Muniz Ribeiro Barbosa
Open Journal of Social Sciences (JSS) , 2016, DOI: 10.4236/jss.2016.44029
Abstract: Homeschooling is a kind of education that is growing. The goal of this study is to review issues used against attempts to legalize homeschooling in Brazil, which have brought up questions about what the right to education is. It presents some themes and concepts of the New Institutionalism Theory in Education as an attempt to relate them to the debate that goes around the growth of the homeschooling movement in different places as well as a context connected to the “concerted cultivation” concept. Thus, this paper suggests that emergence of homeschooling in Brazil is not associated to the school choice movement, but to the growth of concerted cultivation and represents for the country a movement with strong political implications.
Supera??o de dormência na qualidade de sementes e mudas: influência na produ??o de Senna multijuga (L. C. Rich.) Irwin & Barneby
Piveta, Graziela;Menezes, Vanessa Ocom;Pedroso, Daniele Cardoso;Muniz, Marlove Fátima Bri?o;Blume, Elena;Wielewicki, Angélica Polenz;
Acta Amazonica , 2010, DOI: 10.1590/S0044-59672010000200006
Abstract: the objective of this work was to determine the physiological and sanitary quality of senna multijugaseeds related to the methods of dormancy overcoming and the influence on the seedlings quality. the seeds had been submitted to the following methods :immersion in water fervent, the seeds had been immersed in water, at 100°c, until cooling for 24 hours; acid escarification, where the seeds had been immersed in sulfuric acid (h2so4) 90%, for 10 and 20 minutes, and control (without treatment). the tests of sanity, germination and tetrazolium had been carried through, and were evaluated the quality of the seedlings. for the germination of the evaluation an factorial project was used (4 x 2), with four methods of dormancy x two light periods, for substrate paper and vermiculite. the acid scarification consisted in the method most efficient for the dormancy of senna multijugaseeds. penicillium sp. and aspergillus sp. they had for its increased incidence when the seed coast was damaged by the acid scarification for 20 minutes. the control of fusarium spp. increases gradual with the increase of the time of sulfuric acid exposition.
Fungos antagonistas a Sclerotinia sclerotiorum em pepineiro cultivado em estufa
Ethur, Luciana Z.;Blume, Elena;Muniz, Marlove;Silva, Antonio Carlos F. da;Stefanelo, Daniela R.;Rocha, Edileusa K. da;
Fitopatologia Brasileira , 2005, DOI: 10.1590/S0100-41582005000200004
Abstract: white mold caused by sclerotinia sclerotiorum may severely damage vegetables grown in greenhouses. to develop a biological control program for this pathogen proper antagonists are needed. this work aimed to select efficient fungi antagonists for controlling s. sclerotiorum on cucumber (cucumis sativus) grown in greenhouses, and to evaluate the effect of the antagonist on the growth of the vegetable. an isolate of s. sclerotiorum obtained from cucumber and 112 fungi isolates belonging to four genera were used: trichoderma, fusarium, penicillium, and aspergillus. for the in vitro experiment, the cellophane method was used and eight trichoderma virens isolates were selected that had inhibited the pathogen growth by 94 to 100%. greenhouse experiments used sterilized and non-sterilized substrate in plastic cups and non-sterilized substrate in plastic bags. the substrate was inoculated with s. sclerotiorum and the eight isolates of t. virens were used as antagonists. all eight isolates controlled damping-off of plants caused by s. sclerotiorum, but the effect on cucumber growth varied according to the isolate and the substrate treatment.
El té verde ?una buena elección para la prevención de enfermedades cardiovasculares?
Hernández Figueroa,Tania T; Rodríguez-Rodríguez,Elena; Sánchez-Muniz,Francisco J.;
Archivos Latinoamericanos de Nutrición , 2004,
Abstract: the green tea, a good choice for cardiovascular disease prevention?. tea (camellia sinensis) has been used for centuries as a medical drink. around two-thirds of the world?s population drink tea. it is originated from southern china and entensive cultivated in asia and in central african countries. tea can be grouped into three main types, black, oolong, and green tea. green tea is not fermented and is a major beverage consumed in asian countries. green tea is produced from freshly harvest leaves of the tea plant and they contain water, proteins, carbohydrates, minerals, vitamins and polyphenols of the flavonoid type. the major flavonoids in green tea are catechins which constitute about one third of its total dry weight. the major catechin present is epigallocatechin gallate (>50%). new data have increased the interest in green tea or its catechins and its role in treatment of cardiovascular disease (chd) risk factors. the aim of the present paper is to review some studies that have found a relationship between green tea and chd risk factors. from some of them it can be summarized that of green tea and its catechins consumptions (i) decrease body weight by interfering within the sympathoadrenal system and fatty acid synthesis, (ii) decrease cholesterol absorption and plasma levels, (iii) have strong free radical-scavenging activity inhibiting ldl oxidation, (iv) reduce the adhesion molecule expression, (v) have antitrombotic activities by inhibiting platelet aggregation and (vi) decrease systolic and diastolic blood pressures. the positive effects found suggest that a daily intake of 7 cups of green tea (3.5 g catechins) is a good choose for chd prevention; however, it is still necessary more studies to check the action of the green tea and its catechins in humans in order to recommended its use in the general population or only in target subjects.
Qualidade fisiológica e sanitária de sementes de Zinnia elegans Jacq. colhidas em diferentes épocas
Pedroso, Daniele Cardoso;Menezes, Vanessa Ocom;Muniz, Marlove Fátima Bri?o;Bellé, Rogério;Blume, Elena;Garcia, Danton Camacho;
Revista Brasileira de Sementes , 2008, DOI: 10.1590/S0101-31222008000300022
Abstract: the objective of this work was to evaluate the influence of different harvest time on physiological and sanitary quality of zínia elegans seeds. the seeds zinia was originated from plants sowed in october of 2004, in the experimental area of the pyrotechnic department (ufsm). the chapters were collected manually and in according with appearance in seven times: january 17 th, february 10 th, march 15th (collect a), march 23th (collect b), april 12th, may 10th (collect a) and may 29th (collect b) of 2005. those proceeding from the collect in january, february and may (a), appeared not quite ripe, the others had a dry appearance. the seed physiological quality was evaluated by the germination test, first counting, moistness degree, seedlings vigor classification, seedlings length and fresh mass, emergence and length of plants in field. the sanitary quality, by blotter test, was evaluated at seven days. the time of harvest of the chapters, according with appearance, influences in the seed physiological and sanitary quality of zinnia elegans jacq.. seeds harvested at dry stadium, with smaller humidity degree, were the ones that presented better physiologic quality. besides, the pathogen occurrence varied according to the harvest season, being seeds from february harvest presented a larger percentage of fusarium spp incidence.
Envelhecimento acelerado em sementes de Zinnia elegans Jacq. colhidas em diferentes épocas
Menezes, Vanessa Ocom;Pedroso, Daniele Cardoso;Muniz, Marlove Fátima Bri?o;Bellé, Rogério;Blume, Elena;Garcia, Danton Camacho;
Revista Brasileira de Sementes , 2008, DOI: 10.1590/S0101-31222008000300006
Abstract: the objective of the work was to determine the time of exposure adequate to the assessment of physiological potential of the seeds of zinnia elegans jacq., cultivar "single mixed", picked in three different epochs, through the accelerated ageing test, as well as identifying genera of fungi associated to the seeds and their influence on the quality of themselves. it was utilized seeds harvested in january, february and march of 2005, which remained in bod chamber at 40° c for 0, 24, 48, 72 and 96 hours. the physiological quality was evaluated by the tests of germination, first counting, the seedling length, rising of seedling, in field and plant length, and, the sanitary quality by "blotter test". the test of accelerated ageing was efficient for the stratification of the quality of the seeds of zinnia harvested in different seasons due to the physiological potential. the periods of the accelerated ageing of 72 and 96 h, at temperature of 40° c, were the ones that demonstrated greater capacity of seed quality physiological differentiation. the fungus aspergillus spp. associated to the seeds negatively in the germination.
Feminino: a controvérsia do obvio
Muniz, Jacqueline;
Physis: Revista de Saúde Coletiva , 1992, DOI: 10.1590/S0103-73311992000100003
Abstract: the article is a reflection on the nature of femaleness as it is expressed through language. the text does not, of course, pretend to be a detailed appreciation of this object but rather an attempt to bring to light the cognitive gaps and impasses created and sustained within the realm of signification by that which we recognize as femaleness, or femininity. femaleness is thus approached as a controversial episode of signification, which can be used to explore the domains, problems, and limits of language.
Investimento recente, capacita??o tecnológica e competitividade
S?o Paulo em Perspectiva , 2000, DOI: 10.1590/S0102-88392000000300015
Abstract: a intensifica??o da concorrência internacional e a difus?o de setores econ?micos ligados ao complexo microeletr?nico têm demandado uma amplia??o dos esfor?os institucionais, tecnológicos e organizacionais por parte de empresas e na??es. tais esfor?os s?o cumulativos e ancoram-se em processos de aprendizagens contínuos que s?o decisivos para a eleva??o da capacidade competitiva das empresas e na??es e, portanto, para o crescimento econ?mico. no brasil, entretanto, os investimentos ainda dirigem-se sobretudo para o "saber produzir", enquanto aqueles destinados à forma??o de ativos complementares, como a eleva??o da capacita??o tecnológica para projetar e desenvolver produtos e processos, s?o absolutamente insuficientes. os desafios contemporaneos tornam imperiosas n?o apenas políticas industriais e tecnológicas, mas também, e sobretudo, uma nova inser??o ativa e soberana da economia brasileira na nova dinamica econ?mica internacional.
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