Efeito do nitrogenio na nutrição do girassol

Nitrogen (N), besides being one of the macro more absorbed by plants, is the that most limits the production of sunflower. The aim of this study was to evaluate the nutrient content in leaves, grains and nutrient export due to nitrogen levels in sunflower cultivation. A randomized experimental block design consisting of five treatments and four replications: T1 - 50 kg N ha(-1) divided by 10, 20 and 20 kg ha(-1), T2 - 70 kg N ha(-1) divided by 10, 30 and 30 kg ha(-1); T3 - 90 kg N ha(-1) divided by 10, 40 and 40 kg ha(-1), T4 - 110 kg N ha(-1) divided by 10, 50 and 50 kg ha(-1), T5 - 130 kg N ha(-1) divided by 10, 60 and 60 kg ha(-1). These applications were made in installments when sowing and 34 and 48 days after sowing. The parameters were evaluated in leaf nutrient content, nutrient content in grains and nutrient export. Under the experimental conditions it was found that the optimum foliar N were purchased at a dosage above 110 kg ha-1 N. With the increasing amount of N supplied in the sunflower crop was exported over this element, but not at the same rate of increase in dosage. The lowest dose of N the lowest rates of export of P, K, Mg, S, B, Cu, Mn and Zn, while increasing the dose of this nutrient decreased the export of Ca.

Fertilidade do solo e nutrição de tangerineiras Ponkan manejados com resíduos sólidos e adubação química

The objective of this research was to evaluate some soil chemical attributes and the nutritional status of 'Ponkan' mandarin managed with organic residues and chemical fertilization. The experiment was carried out at the Natural Resource Department-Soil Science Area, in the College of Agronomic Sciences -UNESP/Botucatu, SP. 'Ponkan' Mandarin seedlings were cropped and managed using the organic residues sewage sludge, cattle manure and chemical fertilization. The results allow the conclusion that there was an increase in the CEC, OM, N-total, P and K values in the soil managed with organic residues. The sewage sludge application did not harm the soil quality because the input of elements As, Cd, Cr and Hg present in its constitution were not significant. The soil management with organic residues increased significantly contents of N, P, Ca and S in 'Ponkan' leaves but did not contribute to increase significantly the elements B, Cu, Fe, Mn, Zn, As, Cd, Cr and Pb. The soil management with sewage sludge did not result in significant increase in the As, Cd, Cr and Hg content of leaves and fruits.

A letra escarlate como romance histórico: uma história de fragilidade humana e tristeza

The objective of this paper is to analyze the work of the American writer Nathaniel Hawthorne (1804 - 1864), The Scarlet Letter (1850), in the light of the contributions of Literature and History of the American people in the context of New England. Accordingly, we highlight aspects that justify the inclusion of the work as a historical novel, especially based on the reading of The Historical Novel (1936-37) written by Georg Lukács. The diversity of voices and social interrelationships that come out of the main characters of the plot of the novel, as well as their contextual buildings, constituted as important traces to understanding the novel as being of historical value. During our study, we found out that it is in the plots of the novels that the characters reflect, at the same time, the specific conditions of their singularities, the general trends of the historical process and the social conditions from which they arise. We also could see that it is in their singularities that lie special tendencies of human beings. Our references to this study came from scholars as Howard (1964), Bakhtin (1998), Eagleton (2006), Todorov (2009), Zabel (1947), Sellers (1985), Cunlife (1986), Candido (1993) and Schwarz (1981)

Ulisses e Narciso: as faces da alma humana através do discurso mítico nas Enéadas de Plotino

This dissertation, witch studies the myth in Plotinus, attempts to set an approach to the comprehension of the mythic discourse as image related to the ethical process in the Enneads. In order to achieve it, the analysis of the mythic narrative will be employed in the philosophical context that has as a starting point a revisit of the platonic poetic conception. As central questions the notable mythological figures of Narcissus and Ulysses will be utilized to put into context the notion of the Plotinian soul and its endeavor of returning to the originary unity. Therefore, by following the course of both figures in their respective narratives, it conceives a possible relation of ascension and fall of the soul. The first part of this study intends to show Plato s interpretation on the myth and Plotinus standpoint in regard to it. Moreover, it observes Plato s criticism on poetry in the context of the Greek Paideia and the notion of the myth as image of the henological structure in Plotinus, who perceives in the myth its exemplifying nature. The second part attempts to structure Plotinus philosophy, contrasting Henology and Ontology, therefore exposing the three hypostases and the comprehension of the intelligible. The third part endeavors to display the sense of the myth, the idea of the myth as image in Plotinus and the roles of the mythical figures in the Enneads

Análise citogenética de células-tronco derivadas do subendotélio da veia umbilical humana

Mesenchymal stem cells (MSCs) are known as a population of multi-potential cells able to proliferate and differentiate into multiple mesodermal tissues including bone, cartilage, muscle, ligament, tendon, fat and stroma. Several applications of the study of EC can be emphasized the therapeutic techniques such as guided bone regeneration by implantation of EC in the affected site, without the need for bone grafts, using titanium as a vehicle. The process of cryopreservation is essential for the maintenance of cell cultures, since the cell line is frozen, it can be maintained in liquid nitrogen for an indefinite period and then thawed for therapeutic or experimental purposes. The aim of this study was to isolate a population of MSCs derived from the subendothelium of the umbilical vein human (MSCs-SUVH) to assess cytogenetic analysis by the possibility of appearance of chromosomal changes in two different situations: MSCs-SUVH regarding the process of cryopreservation and MSCs-SUVH grown on the surface of titanium. Flow cytometry analysis revealed that, this cell population was positive for the markers CD29, CD73 and CD90, but there was no expression of hematopoietic lineage markers, such as CD14, CD34 and CD45 and demonstrated capacity for osteogenic differentiation. The chromosomes obtained from the primary culture of MSCs-SUVH were analyzed by GTW banding technique, and results are described as guidelines to ISCN 2005. There was not the emergence of clonal chromosomal changes in the MSCs-SUVH in different situations analyzed. However one of the strings presented a balanced paracentric inversion, probably a cytogenetic constitutional alterations, which was present before and after the experimental situations that the MSCs-SUVH was submitted

Geoquímica de sedimentos de fundo dos rios Trairí, Ararí e da Laguna Nísia Floresta (RN)

The metal concentrations (Al, Ba, Cd, Cr, Cu, Fe, Mn, Ni, Pb, Zn ) and phosforus(P) had been determined analyzed through Plasma Inductively Coupled Plasme Mass Spectrometer for fine fraction, < 0,63 mm in 22 samples. The sample preparation for analysis had been make in the laboratories of geology of the UFRN. This samples procedures consists in register, dry, bolt and send to analysis in external laboratory (LAKEFIELD GEOSOL) in Belo Horizonte (MG, Brazil). The studied area involves the rivers Trairi, Ararí and Nísia Floresta lagoon, that empties in the sea, situated in the Rio Grande do Norte State. The study objects (Rivers Trairí, Ararí and Nísia Floresta lagoon) receive influences from urban dumpies, agrotoxics and fertilizer, shrimps tank, pastoral, with this, the concentrations of metals (Al, Ba, Cd, Cr, Cu, Fe, Mn, Ni, Pb, P, Zn) (except phosforus) in some points of the study area had been above of the value of reference what it leads to classify them as not polluted to moderately polluted, as the calculated Igeo. In front of discussed, can say about the environmental problems found in Trairi, Ararí and Nísia Floresta Lagoon are still in small scale, since when regard the studied área is over human activity effects

Construir com os professores do 2º ciclo práticas letivas inovadoras: um projeto de pesquisa sobre o ensino do tema curricular 'alimentação humana'

O propósito neste texto é divulgar um projeto de investigação que foi desenvolvido com professores do 2º ciclo, no qual se utilizou uma metodologia do tipo investigação-ação. Por intermédio deste projeto foi possível avaliar o impacto do uso de estratégias do Ensino por Pesquisa (EPP), com vista ao desenvolvimento de novas competências científico-didáticas (atitudes e saberes). Tais estratégias foram desenvolvidas com base em preceitos da Nova Didática e no âmbito de um programa de formação. Os dados levantados e analisados mostraram que esse tipo de metodologia contribui para a superação de dificuldades de aprendizagem inerentes a processos de formação profissional (inicial e continuada), como a de aprender por meio do trabalho cooperativo na Escola.

A curva de regressão da gonadotrofina coriônica humana é útil no diagnóstico precoce da neoplasia trofoblástica gestacional pós-molar?

OBJETIVO: avaliar a utilidade da curva de regressão normal da gonadotrofina coriônica humana (hCG) no diagnóstico precoce de neoplasia trofoblástica gestacional pós-molar (NTG). MÉTODOS: estudo longitudinal, incluindo 105 pacientes com mola hidatiforme completa (MHC) acompanhadas no Centro de Doenças Trofoblásticas de Botucatu, entre 1998 e 2005. Os títulos da hCG sérica foram mensurados quinzenalmente em todas as pacientes. Curvas individuais de regressão da hCG das 105 pacientes foram estabelecidas. A comparação entre a curva de regressão normal estabelecida em nosso serviço com as curvas individuais da hCG foi usada no rastreamento e diagnóstico (platô/ascensão) de NTG. O número de semanas pós-esvaziamento quando a hCG excedeu o limite normal foi comparado com o número semanas em que a hCG apresentou platô/ascensão. RESULTADOS: das 105 pacientes com MHC, 80 apresentaram remissão espontânea (RE) e 25 desenvolveram NTG. Das 80 pacientes com RE, 7 (8,7%) apresentaram, inicialmente, dosagem da hCG acima do normal, mas, no devido tempo, alcançaram a remissão. Todas as 25 pacientes com NTG apresentaram desvio da curva normal da hCG em 3,8±2,5 semanas e mostraram platô ou ascensão em 8,4±2,9 semanas (p<0,001). CONCLUSÕES: a curva de regressão normal da hCG pós-molar pode ser útil para diagnóstico de NTG.

Tessituras poéticas da corporeidade na formação humana do educador infantil

Cette étude a comme sujet principal la formation humaine de l instituteur. L objectif général est d analyser et décrire les conditions créées par les vécus d un atelier corps biographique pour la resignification de la corporéité de l instituteur, fixant les questions suivantes pour l investigation : Quelles sont les implications du vécu de l atelier corps biographique dans la vie des instituteurs ? La recherche a été exposée sur l approche qualitative, suivant les principes de la recherche-action reliée à la méthode des histoires de vie. Pour révéler la beauté et la complexité du processus poïétique de la formation humaine, nous nous sommes servi de la métaphore du "dessus de lit en patchwork" comme opérateur cognitif en attachant les principes de la corporéité fondés sur la Théorie de la complexité (MORIN, 2005), la Théorie autopoïétique (MATURANA ; VARELA, 2001), la Théorie du flux (CSIKSZENTMIHALYI, 1999), les approches de transdisciplinarité (LA TORRE; MORAES, 2008), et d autobiographie (JOSSO, 2004; PINEAU, 2003; PASSEGGI, 2000;), joignant la conception de l éducation comme pratique d autonomie, de liberté, d espoir et de l enchantement (FREIRE, 1996, 1992; ASSMANN, 1995). Nous avons eu comme scène du développement de la recherche, l Unidade Educacional Infantil (UEI), la garderie qui accueille les enfants des fonctionnaires de l Université Fédérale du Rio Grande do Norte. Treise élèves (enfants), des institutrices titulaires, vacataires, boursières ont participé de l'investigation. En conptant sur eux, nous avons développé un atelier corps biographique, dans lequel nous avons réalisé 10 vécus dans la période qui a couvert le deuxième semestre de 2007 jusqu au deuxième semestre de 2008, en manifestant la réflexivité autobiographique, le ludique, la créativité, la sensibilité et la réflexivité du vécu. Nous avons utilisé comme instruments pour la construction des donnés, l observation participante, les propres vécus, le port folio, la technique du jeu de sable et l'enregistrement photographique. L analyse a montré que le vécu de la formation humaine à partir des principes de la corporéité, implique dans un parcours vers soi-même dans lequel émergent les expériences qui nous ont constitués en tant qu êtres existentiels. Pour finaliser, nous avons aperçu les répercussions dans la vie professionnelle et personnelle de ces institutrices, qui comme moi pensaient avoir besoin d exposer leur luminosité intérieure pour que l on la redécouvre. Lors des vécus des tissages, les institutrices se sont montrées impliquées aux moments de jeux, de création, de réalisation, d afection et d action réflexive, dans lesquelles la teneur humaine cachée, a été révélée, en ouvrant les possibilités pour le sentiment du mouvement de naissance de l humanisation intérieure. Pour conclure, le corps joyeux de savoir et de beauté a été révélé, et dans sa rencontre avec soi-même et avec l autre, a pu être auto- recréé

Paracoccidioidomicose subaguda progressiva: tratamento de um doente com anfotericina B e nutrição parenteral

Os Autores descrevem um caso de paracoccidioidomicose subaguda progressiva, com quadro clínico sugestivo de síndrome de má absorção, em que o doente não se beneficiara apenas com o tratamento antifúngico convencional. Ao se introduzir como medida auxiliar a nutrição parenteral houve evidente melhora clínica e laboratorial. Desta maneira os Autores propõe o uso associado da nutrição parenteral no tratamento de doentes com esta forma clínica de paracoccidioidomicose.

Esporotricose do gato doméstico (Felis catus): transmissão humana

No presente trabalho relata-se caso de paciente, funcionário de hospital veterinário, infectado através de arranhadura de gato doméstico portador de esporotricose. Inquérito domiciliar junto aos proprietários do animal fonte de infecção, revelou dois outros casos presuntivos de esporotricose humana transmitida por gatos, e confirmou o diagnóstico, por cultivo do Sporotrix schenckii, em 3 gatos domésticos adicionais. A esporotricose felina caracteriza-se por lesões cutâneas ulceradas e tendência à disseminação sistêmica e evolução fatal. A transmissão intra e inter-espécie é facilitada pela exuberância de fungos nas lesões cutâneas de felinos infectados.

Pythium insidiosum: relato do primeiro caso de infecção humana no Brasil

A pitiose é causada por microorganismo aquático, fungo-símile, o Pythium insidiosum, patógeno de homens e animais. Observou-se um paciente com úlcera fagedênica no membro inferior, com exame anatomopatológico sugestivo de zigomicose, pouco sensível à terapêutica antifúngica, obtendo-se cura por meio de ampla exérese. A comprovação etiológica resultou de métodos moleculares, com amplificação e seqüenciamento de DNA de organismo isolado em ágar Sabouraud, observando-se 100% de analogia com seqüências de P. insidiosum depositadas no GenBank.

Microsporum nanum. quarto relato de infecção humana no Brasil

Comunica-se o quarto relato de infecção humana por Microsporum nanum (M. nanun) no Brasil. Trata-se de criança de 9 meses de idade, apresentando há um mês lesões cutâneas dorsais compatíveis com tinea corporis. As lesões foram frustas, regredindo espontaneamente após um mês. A investigação epidemiológica na área de origem do caso índice identificou suínos infectados por Microsporum nanum, sugerindo ser esta a fonte de infecção.

Soroprevalência de vírus linfotrópico de células T humanas, vírus da imunodeficiência humana, sífilis e toxoplasmose em gestantes de Botucatu - São Paulo - Brasil: fatores de risco para vírus linfotrópico de células T humanas

Com o objetivo de estudar a soroprevalência de vírus linfotrópico de células T humanas I/II (HTLV-I/II), vírus da imunodeficiência humana, sífilis e toxoplasmose, em gestantes atendidas em unidade básicas de saúde do município de Botucatu - São Paulo - Brasil, bem como os fatores de risco para a infecção pelo HTLV -I/II, foram realizados inquérito sorológico e avaliação dos resultados de exames solicitados na rotina do prénatal. em 913 gestantes, a soroprevalência de HTLV- I e de HTLV- II foi de 0,1%. Sífilis, toxoplasmose e infecção pelo HIV foram encontradas. Nenhum dos fatores de risco pesquisados mostrou-se seguro para identificar gestantes com infecção pelo HTLV- I/II. A comparação da proporção de gestantes infectadas e de doadores de sangue da região sudeste do Brasil com testes reagentes para HTLV- I/II não mostrou diferença estatística.

Ecologia humana e manejo participativo da pesca do búzio Anomalocardia brasiliana (Gmelin, 1791) (Bivalvia: Veneridae) na Reserva de Desenvolvimento Sustentável Estadual Ponta do Tubarão (RN)

Coastal and marine protected areas are created to protect habitat, avoid biodiversity loss, and to help maintain viable fisheries. However, most of these areas in tropical countries occurs in impoverished regions and directly affect the livelihood and survival of coastal communities which directly depend on fisheries and shellfisheries. Therefore, socioeconomic and conservation goals overlap. In this context, fishers should have a central place in resource management. They are critical resource users and their behavior directly affects the system. Shellfish resources are important sources of food, employment and income to fishing communities in Latin America. But despite its widespread use for food and income, there is an urgent need of more research on shellfish management. This research discusses the artisanal fisheries of Venus clam (Anomalocardia brasiliana) (Gmelin, 1791) (Bivalvia: Veneridae) in Brazil, and points out strategies to improve the system. Venus clam is a small and commonly exploited species for food and income on the Brazilian coast. This research was carried out at Ponta do Tubarão Sustainable Development Reserve (Brazilian Northeast coast), where there was no information available about who harvest, where or how much Venus clam has been harvested, despite this resource being exploited for generations. Clam fishery follows the pattern of socio-economic invisibility that general clam exploitation has in Brazil. Methods used were interviews, participatory monitoring and focal follow observation from January 2010 to May 2011. Results include: (a) the identification of shell fishers, (b) how harvest and meat processing are performed (mollusk beds, time spent, gross and net production), (c) the analisis of shell fisher income and their economic sustentability, and (d) the involvement of shell fisher families in data gathering and analyses for the first time. Based on the acquired knowledge, we propose a new institutional arrangement for clam fishery including co-management, fisheries agreement, compensatory arrangements and improvements for the Venus clam value chain such as the establishment of a minimum price for clam meat. This research also includes two other results: a general description for Venus clam harvesting in the Brazilian Northeast coast and a specific discussion about co-management of Venus clam in Brazil. The first one was possible through the meeting of several shell fisherwomen from other states during activities promoted by People of the Tides (PoT) project. PoT was an international initiative aiming to develop coastal communities that depend on mollusk for their livelihood. The second one is a comparison between PoT and Venus clam management at Pirajubaé Marine Extractive Reserve (Santa Catarina). It evaluates the success and failures of these only two initiatives involving co-management of A. brasiliana in Brazil