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Search Results: 1 - 10 of 4093 matches for " Caroline Leivas;Centenaro "
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Crescimento do fungo simbionte de formigas cortadeiras do gênero Acromyrmex em meios de cultura com diferentes extratos
Borba, Regina da Silva;Loeck, Alci Enimar;Bandeira, Juliana de Magalh?es;Moraes, Caroline Leivas;Centenaro, Elias Daniel;
Ciência Rural , 2006, DOI: 10.1590/S0103-84782006000300002
Abstract: the cutter ants show preference for some vegetable species, which are constantly defoliated, while others are not attacked, although they are abundant and located close to the nest. the ants of the goods atta and acromyrmex cut plants and they transport pieces to the anthills. the vegetable material is used for the cultivation of the mushroom leucoagaricus gongylophorus, mushroom from of which theyfeed. several works using extracts of plants have been accomplished to evaluate the effect on the development of the mushroom symbiont. the objective of this work was to evaluate the influence of added culture means of different extracts on the growth of the l. gongylophorus mushroom. where mushrooms of the species acromyrmex ambiguus, acromyrmex crassispinus, acromyrmex heyeri and acromyrmex lundi were inoculated in the means nutritious ágar and bda, both added of molasses and extracts of lolium multiflorum lam., typha angustifolia l. and ant (atta sexdens piriventris). the pagnocca medium was used as pattern. the plates were maintained in cameras acclimatized to the temperature of 25 + 1°c and 24 hours of darkness, for a period of 49 days. the fungal growth was evaluated with base in the diameter of the colony, which was accomplished with weekly intervals, totalizing seven evaluations. also the dry weight was evaluated from the mushroom to the 53 days. the results showed that the mushroom cultivated by different species of ants has differentiated growth in culture means with different extracts.
Qualidade fisiológica de sementes e crescimento de plantulas de alface (Lactuca sativa L.) submetidas ao nitrogênio
Marini, Patrícia;Lowe, Tatiana Raquel;Moraes, Caroline Leivas;Moraes, Dario Munt de;Lopes, Nei Fernandes;
Revista Brasileira de Sementes , 2009, DOI: 10.1590/S0101-31222009000100025
Abstract: in order to obtain high quality seeds, adequate mineral fertilizing is indispensable that is important for plant development and reproduction, as well as for the seed physiological quality and consequently, for seedling growth. the objective of this research was to evaluate the physiological seed quality and lettuce seedlings growth the in presence and absence of the complete nutritive solution with emphasis on macronutrient nitrogen. the experiment was carried in the seed laboratory and greenhouse of the botany department, pelotas federal university (ufpel). the assay was conducted three times: hoagland solution ? strength, hoagland solution ? strength minus element nitrogen and water (control). the following tests were carried out: germination (tg), first germination count (pcg), germination speed index (ivg), electric conductivity (ce), seedling emergence (e), emergence speed index (ive), seedling shoot (pa) and root (sr) lengths, fresh (mf) and dry (ms) matter of seedling shoot and root, leaf area, leaf number, and pigment (chlorophylls) content. a completely randomized design was used with three replications. the means were compared by the tukey test (p<5%). the use of the complete solution and solution minus nitrogen did not interfere in the seed viability and vigor lettuce cv. regina, in tests carried out under laboratory conditions. however, under greenhouse conditions, the complete solution increased significantly the canopy length, canopy and root fresh and dry matter, increasing also the leaf area and the number of leaves per seedlings at 21 days after emergence. this parameters analyzed were not influenced by the treatments.
Altera??es fisiológicas e bioquímicas em sementes de arroz submetidas ao estresse térmico
Marini, Patrícia;Moraes, Caroline Leivas;Marini, Naciele;Moraes, Dario Munt de;Amarante, Luciano do;
Revista Ciência Agron?mica , 2012, DOI: 10.1590/S1806-66902012000400014
Abstract: the purpose of this research was to analyze the effect of different temperatures on the respiratory activity, enzymatic and in process related to the physiological quality of rice seeds, and use the relationship between these parameters to characterize the beginning of the deterioration process of seeds. the seeds were exposed during 24 h and conducted tests for germination, first count germination, index the germination speed, length and dry weight of shoot and roots, electrical conductivity, respiratory activity and activity of the enzymes. the experiment was completely randomized with four replicates and the averages compared by tukey test (p < 0.05) with subsequent analysis of regression. rice seeds showed that the germination and vigor were reduced above 25 oc temperatures. respiratory activity increased with increasing temperature, the same occurred with study enzymes activity in at five days after sowing (ranging from 14.55 at 59.86 μmol of nad+ g-1 mf min-1 for at malate dehydrogenase and 0.25 at 0.57 μmol of at nadph g-1 mf min-1 for glucose-6-phosphate dehydrogenase). therefore, it can be concluded that the evaluated biochemical tests can be used to identify the beginning of the deteriorating process of rice seeds and that temperatures above 25 oc can depreciate the quality of these seeds.
Crescimento do fungo simbionte de formigas cortadeiras do gênero Acromyrmex em meios de cultura com diferentes extratos
Borba Regina da Silva,Loeck Alci Enimar,Bandeira Juliana de Magalh?es,Moraes Caroline Leivas
Ciência Rural , 2006,
Abstract: As formigas cortadeiras mostram preferência por algumas espécies vegetais, as quais s o constantemente desfolhadas, enquanto outras n o s o atacadas, embora sejam abundantes e localizadas próximas ao ninho. As formigas dos gêneros Atta e Acromyrmex cortam plantas e transportam peda os para os formigueiros. O material vegetal é usado para o cultivo do fungo Leucoagaricus gongylophorus, do qual se alimentam. Vários trabalhos utilizando extratos de plantas têm sido realizados para avaliar o efeito sobre o desenvolvimento do fungo simbionte. O objetivo deste trabalho foi avaliar a influência de meios de cultura acrescidos de diferentes extratos sobre o crescimento do fungo L. gongylophorus. Fungos das espécies Acromyrmex ambiguus, Acromyrmex crassispinus, Acromyrmex heyeri e Acromyrmex lundi foram inoculados nos meios ágar Nutritivo e BDA, ambos acrescidos de mela o e de extratos de azevém (Lolium multiflorum Lam.), tifa (Typha angustifolia L.) e formiga (Atta sexdens piriventris). O meio Pagnocca foi utilizado como padr o. As placas foram mantidas em camaras climatizadas à temperatura de 25 + 1degreesC e escotofase de 24 hs, por um período de 49 dias. O crescimento fúngico foi avaliado com base no diametro da col nia, sendo este avaliado em intervalos semanais, totalizando sete avalia es. Também foi avaliado o peso seco do fungo aos 53 dias. Os resultados mostraram que o fungo cultivado por diferentes espécies de formigas tem crescimento diferenciado em meios de cultura com diferentes extratos.
Contribui??o ao estudo alelopático de Erythrina velutina Willd: , Fabaceae
Centenaro, Caroline;Corrêa, Luís G. P.;Karas, Marcos J.;Virtuoso, Suzane;Dias, Josiane E G.;Miguel, Obdulio G.;Miguel, Marilis D.;
Revista Brasileira de Farmacognosia , 2009, DOI: 10.1590/S0102-695X2009000200021
Abstract: this work has used ethanol extract and respective fractions from erythrina velutina in allelophatic rehearsal with seeds from lactuca sativa. it was observed that, except for the ethyl acetate fraction, the ethanol extract and fractions has been capable to influence the germination and growth of the seeds from l. sativa.
Paternidade na adolescência: uma breve revis?o da literatura internacional
Levandowski, Daniela Centenaro;
Estudos de Psicologia (Natal) , 2001, DOI: 10.1590/S1413-294X2001000200007
Abstract: this paper aimed to review the international literature on adolescent fatherhood published from 1990 to 1999. the psyclit data base was accessed using specific key words related to the theme. the incidence of studies on fatherhood, motherhood and adolescent fatherhood and motherhood was assessed. thus, an identification of specific articles on adolescent fathers or fatherhood was carried out. only 68 articles were found. these articles were classified according to their theme and some methodological aspects. a low incidence of articles on adolescent fatherhood was noted, compared to articles on fatherhood in general and adolescent motherhood. it is still necessary to investigate the expectations and feelings of adolescent fathers, their marital and family relationships and their involvement with the baby. instruments such as tests, interviews and observation could be employed more systematically.
A interven??o do servi?o social ao paciente renal cr?nico e sua família
Centenaro,Grizy Augusta;
Ciência & Saúde Coletiva , 2010, DOI: 10.1590/S1413-81232010000700102
Abstract: this article has the objective to share the experience of professional performance of the social assistant in health, more precisely with carriers of chronic insufficiency renal, who need treatment of hemodialyses, reporting the limitations imposed for the illness and the confrontation of the patient and his/her relatives.
Errata
Daniela Centenaro Levandowski
Psicologia Clínica , 2012, DOI: 10.1590/s0103-56652012000100014
Abstract:
Pitágoras e van Hiele: uma possibilidade de conex o Pythagoras and van Hiele: a possible connection
José Carlos Pinto Leivas
Ciência & Educa??o (Bauru) , 2012, DOI: 10.1590/s1516-73132012000300010
Abstract: Este trabalho analisa como um grupo de alunos da licenciatura em Matemática e de professores em a o continuada enuncia e representa o Teorema de Pitágoras. A pesquisa tem conota o qualitativa e foi realizada num evento de Educa o Matemática, durante a realiza o de uma oficina sobre os níveis de van Hiele, no segundo semestre do ano de 2010. Aspectos de visualiza o e representa o foram observados, e constatamos que a maioria absoluta dos sujeitos investigados n o expressa corretamente o teorema numa linguagem matemática apropriada, estabelecendo conflitos cognitivos entre aspectos de medida e de formas. Além disso, as representa es do teorema, feitas pelos sujeitos, se limitam, quando o fazem, a uma única situa o, e n o d o sinais de identificarem uma generaliza o do teorema, além do aspecto geométrico de construir quadrados sobre os lados de um triangulo retangulo. This work analyses how a group of graduate students of Mathematics and practicing teachers represent Pythagoras's Theorem. The research has a qualitative approach and was held at an event of Mathematics Education, during a workshop on the van Hiele levels in the second half of 2010. Aspects of visualization and representation were observed and we found that the majority of investigated subjects don't use an appropriate language for the mathematical theorem, establishing conflict between cognitive aspects and forms of measurement. Furthermore, representations of the theorem, given by the subjects are limited, when they give them, to a single location and they don't give signs to identify a generalization of Theorem beyond the geometric aspect of constructing squares on the sides of a triangle.
Sentir-se bem em família: um desafio frente à diversidade
Wagner, Adriana,Levandowski, Daniela Centenaro
Textos & Contextos (Porto Alegre) , 2008,
Abstract: No presente trabalho, discutimos acerca das crises da família, apresentando informa es que demonstram a diversidade de configura es familiares existentes no contexto brasileiro atual, tais como separa es, divórcios, uni es consensuais, casais sem filhos, recasamentos, dentre outras. Desse modo, refletimos acerca da crise do modelo tradicional de família e n o da institui o família, questionando: Como sentir-se bem em família frente a tal pluralidade? Sugerimos, ent o, alguns aspectos que devem ser observados para atender as demandas dessas novas famílias e, conseqüentemente, promover a saúde de seus membros.
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