Plantas alimentares de raízes e tubérculos na agricultura familiar: um estudo de caso como enfoque etnobotânico com agricultores do município de Rio Claro

A erosão genética de espécies domesticadas, provocada pelos processos associados a Revolução Verde despertou o interesse mundial pela agrobiodiversidade manejada em sistemas agrícolas de pequena escala onde situam-se agricultores familiares. Propostas de conservação in situ e/ou on farm têm sido elaboradas. No Brasil, a agricultura familiar tem grande importância na produção de alimentos e a mandioca (Manihot esculenta Crantz) é a espécie que se sobressai, sendo a agricultura familiar responsável por 87% da sua produção. O presente estudo teve como objetivos: um levantamento etnobotânico dos cultivos alimentícios de raízes e tubérculos de agricultores familiares do município de Rio Claro, São Paulo; e analisar aspectos sócio-econômicos visando estratégias para a conservação in situ de variedades por eles cultivadas e potencial continuidade das atividades pelas gerações futuras. Foram entrevistados 31 agricultores, em sua maioria homens, usando o método “Bola de neve”, distribuídos entre nove bairros ou distritos rurais da cidade de Rio Claro. As entrevistas realizadas para coleta dos dados foram semi-estruturadas, tanto para dados sócioeconômicos como para os dados sobre as variedades reconhecidas pelos agricultores. As entrevistas foram realizadas nos sítios dos agricultores e suas áreas de cultivo foram visitadas, onde foram feitas coletas botânicas. Os dados foram analisados de forma qualitativa utilizando-se gráficos e tabelas e descrições do estudo de caso. A espécie predominante da amostra foi a mandioca. Os agricultores mostraram possuir fatores positivos que os caracterizam como mantenedores da diversidade agrícola, como o fato de cultivarem etnovariedades de mandioca diversas e terem um sistema de caracterização e reconhecimento delas de base empírica, contudo, estes agricultores perderam, em sua maioria... (Resumo completo, clicar acesso eletrônico abaixo)

Formação de professores: uma breve reflexão sobre as razões da escolha profissional

This text, supported by the Social Representations Theory (SRT), reports some results of a research with students from the 1st/4th years of the College of Sciences and Technology from the State University of São Paulo (FCT-Unesp) on the teacher’s work/identity. We applied 278 questionnaires (free association questions on the teacher’s work and profile). Two groups with former students (five with teaching degrees and four with degrees in Education) were organized. We analyzed issues regarding the choice for the teaching profession (Geography - 3; Math - 04; Physical Education - 01 and Pedagogy – 10). Partial results: 1. There are differences between the social representations of students enrolled in Teaching and Education courses; 2. These people say the profession requires dedication and commitment; 3. They establish a strong relationship between career choice and the “taste” for the profession; 4. They believe that their role is greatly challenging: it involves helping prospective students and commitment to the school.

Variabilidade entre materiais genéticos de eucalyptus spp quanto à distribuição de raízes finas em latossolos profundos

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Um autorretrato de Primo Levi: as raízes literárias da narrativa de Auschwitz

Th e anthology La ricerca della radice written by Primo Levi allows the reader to understand the intellectual infl uences received throughout his life. Th e aim of this paper is to establish analytic relation between the authors contained in the personal anthology of Primo Levi and his historical narrative about Auschwitz.

Influência da reinstrumentação do degrau apical radicular após o posicionamento primário do cone principal de guta-percha noselamento apical

The aim of this study was to evaluate in vitro the apical leakage after the apical re-preparation and replacement of the principal gutta-percha point plus endodontic sealer (Sealer 26TM). Sixty extracted human canines were prepared by using a step back technique up to size 50 K type file apically. At each change of instrument the canals were irrigated with distilled water. After that step, the external surface roots were coated and subdivided into six groups with ten roots each: I – single gutta percha point technique; II – lateral condensation and III – hybrid technique. The IV, V and VI groups were similar to others groups but after to place the principal gutta percha point, it was removed, re-prepared up to size 60K file and in sequence replaced the principal gutta percha point and the root canal filling finished. The specimens were immersed in 2% Rhodamine BTM for 7 days at 37 oC. The apical leakage was measured by Image ToolsTM program. With Kruskal Wallis test statistical analysis showed that there was no significant difference between the techniques (p > 0.05).

Análise dos troncos radiculares, abertura da raízes e projeções cervicais de esmalte de furcas de molares superiores e inferiores: Estudo in vitro

Periodontal treatment of teeth with furcation lesions often have unpredictable results due to several factors that may hinder therapy or influence the progress of periodontal disease. Of these, the length of the root trunk may contribute to the early injury of the furcations or even cause complications for the application of the treatment; the opening of the roots can guide the type of treatment to be instituted and cervical enamel projections may hinder the instrumentation of the region or even act as a retention plate niche. Thus, the purpose of this study was measured using a digital caliper, root logs database 400 molar both the 1st and the 2nd and both upper and lower as well as analyze using appropriate index type projection cervical enamel and through appropriate classification the opening of the roots in order to guide the diagnosis and treatment plan. We conclude that there is variation in measures of root trunk between the faces of the teeth examined and that greater cervical enamel projection (ECP) correlates with a decrease in the length of the root trunk in the sample evaluated as the first molars have higher occurrence of roots with a degree of opening larger than the second molars.

Adesão de células sanguineas em raízes biomodificadas de pacientes fumantes

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Distribuição de raízes e a relação com o estado hídrico de laranjeira 'valência' enxertada sobre limoeiro 'cravo'

Pós-graduação em Agronomia (Horticultura) - FCA

Atributos químicos no solo e produção de Cynodon dactylon cv. Tierra Verde sob doses de biofertilizante orgânico

The concentration of nutrients in plant is related to the soil, fertilization, climate, season, cultivar and cultural practices. Aiming to evaluate the soil chemical properties, the dry matter production of shoots and roots, nutrient content in the plant and the chemical composition of the grass Tierra Verde subjected to levels of organic biofertilizer as nitrogen source, an experiment was conducted in a greenhouse at the Faculty of Veterinary Medicine , UNESP, Araçatuba-SP, January-September 2010. Treatments were arranged in a completely randomized design with six fertilized biofertilizer doses (0, 33, 66, 132, 264, 528 m3 ha-1) and five repetitions for three cuts. We used the model split plot, with doses of biofertilizer considered as main treatments and cuts as sub-plots. We obtained a linear response in the production of dry mass of shoots and roots to the dose of 528 m3 ha-1 of organic biofertilizer. Nitrogen fertilization influenced the soil chemical properties and levels of organic matter, sulfur, boron and manganese, and in foliar levels of phosphorus, potassium and copper. The chemical composition was not altered by the influence of organic biofertilizer doses applied to the soil.

Propriedades de pasta e concentração de amido resistente em duas variedades de féculas de raízes de mandioca em diferentes estágios de desenvolvimento

The objective of this work was to analyze the profiles of the concentrations of resistant starch and respective properties of paste of two cassava varieties with different development stages. For the evaluation of the profile of the concentration of resistant starch and paste properties, the starches of the cassava varieties were used IAC 576/70 and Fécula Branca, which were collected with different times of cultivation (10, 11, 12, 13, 14 and 15 months), and the use of these times were according the crop of cassava variety IAC 576/70. For the analysis of paste property the apparel was used RVA and for analysis of resistant starch the enzymatic method was used. The results showed for the paste properties happened significant differences among the two varieties of cassava starch, and in some months they there wasn't differences, and as the results of resistant starch happened differences among the starches the months of July and August, and as for the different development stages only the starch of Fécula Branca that happened significant differences.

Estabelecimento do capim-massai em consórcio com milho AG-1051 e Bt, em áreas infestadas pelo percevejo castanho das raízes.

The system consortium of grain crops with forage plants allows the establishment of pastures resistant, vigorous and lower cost in areas infested with stink bug brown root. Maize has favorable characteristics for intercropping as high plant height and insertion height of the studs, allowing the crop to occur without interference of forage plants. Furthermore, the production system in consortium with Bt corn reduced the infestation of Spodoptera frugiperda and was not affected by Scaptocoris carvalhoi (Hemiptera: Cydnidae), The Panicum maximum cv. Massai allowed a consortium with excellent corn and pasture provided a vigorous and excellent leaf mass distribution and very deep roots in the soil. Grain yield for Bt corn was higher and significant (P <0.05), compared to other treatments. The use of Lorsban (1.5 liters / ha) and Thiodan (2.0 liters / ha) was highly effective (P <0.05) in the control of Spodoptera frugiperda and Scaptocoris carvalhoi (Hemiptera: Cydnidae).

Influência do comprimento do pino de fibra de vidro na resistência à fratura de raízes fragilizadas

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Influência do comprimento do pino de fibra de vidro na resistência à fratura de raízes fragilizadas

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)