ABSTRACT. Evaluation of combined ability can eliminate lines that are inefficient and enable the subsequent program steps to be more successful. The objective of this study was to predict the general (gi) and specific (sij) combination ability of popcorn S1 progenies for early selection. A total of 288 topcrosses were performed under a randomized complete block design with two replicates at two sites (Campinas and Capão Bonito, São Paulo State, Brazil). Diallel analyses were performed using mixed models and the maximum likelihood restricted/best unbiased linear prediction method. Evaluated traits included grain yield (GY; kg ha-1), weight of 100 grains (g), and popping expansion (PE; mL g-1). Ear components were also evaluated, including ear length, ear diameter (cm), and the number of grain rows (unit). The S1 progeny 32 presented the highest gi for GY in Campinas, whereas progeny 46 presented the highest gi for GY in Capão Bonito. The S1 progeny, 114 was an important parent for the popcorn breeding program, because it presented high gi for the traits of agronomic interest at both sites. Combination 86×IAC12 exhibited a high sij, and the 86 parent presented the second-highest gi for PE in Campinas, and it should be used for high PE genotypes.

RESUMO: No âmbito de uma dissertação de Mestrado, buscou-se estruturar compreensões sobre a Astrobiologia no contexto do ensino de ciências no Brasil, diante a cosmovisão de pesquisadores e professores que atuam na Educação Básica ou Superior no País. Para tanto, almejou-se pela análise fenomenológica dos discursos individuais e coletivos de seis colaboradores de pesquisa, transcritos e descritos a partir de entrevistas gravadas e escritas, tecer cosmovisões sobre os elementos que estruturam a astrobiologia no contexto do ensino de ciências brasileiro. Com esses movimentos articulou-se três núcleos de ideias, sendo eles: Potencial para a construção de conhecimentos científicos (NI1); Desafios institucionais, ontológicos e epistemológicos (NI2); Perspectivas e possibilidades no cenário nacional (NI3). Certamente um campo emergente da ciência que demanda uma ótica multidisciplinar apresentaria desafios e obstáculos para ser inserida no ensino de ciências nacional. Entretanto, não se pode negar que já existem possibilidades e potencialidades que podem ser exploradas neste contexto

ABSTRACT: Within the scope of a master’s dissertation, we sought to structure understandings about Astrobiology in the context of science teaching in Brazil in the face of the cosmovision of researchers and teachers working in Basic or Higher Education in the country. To this end, through the phenomenological analysis of the individual and collective discourses of six research collaborators, transcribed and described from recorded and written interviews, we aimed to weave cosmovisions about the elements that structure astrobiology in the context of Brazilian science teaching. With these movements, three nuclei of ideas were articulated, namely: potential for the construction of scientific knowledge (NI1); institutional, ontological, and epistemological challenges (NI2); and perspectives and possibilities in the national scenario (NI3). Sure enough, an emerging field of science that demands a multidisciplinary approach would face challenges and obstacles to be incorporated into national science teaching. Nevertheless, it cannot be denied that there are already possibilities and potentialities that can be explored in this context

RESUMEN: En el marco de una disertación de maestría, se buscó estructurar comprensiones sobre la Astrobiología en el contexto de la enseñanza de las ciencias en Brasil frente a la cosmovisión de investigadores y docentes que actúan en la Educación Básica o Superior en el país. Para ello, se buscó, por medio del análisis fenomenológico de los discursos individuales y colectivos de seis colaboradores de la investigación, transcritos y descritos a partir de entrevistas grabadas y escritas, tejer cosmovisiones sobre los elementos que estructuran la astrobiología en el contexto brasileño de la enseñanza de las ciencias. Con estos movimientos se articularon tres núcleos de ideas, a saber: Potencial para la construcción de conocimientos científicos (NI1); Desafíos institucionales, ontológicos y epistemológicos (NI2); Perspectivas y posibilidades en el escenario nacional (NI3). Por supuesto, un campo emergente de la ciencia que exige un enfoque multidisciplinario presentaría desafíos y obstáculos para ser incorporado a la enseñanza de la ciencia nacional. Sin embargo, no se puede negar que ya existen posibilidades y potencialidades que se pueden explorar en este contexto

Resumo: Diante da importância e necessidade de aprimoramento dos programas voltados à formação inicial de professores, esta investigação teve como objetivo investigar indícios da construção de Identidades Docentes em graduandos do curso de Licenciatura em Ciências Biológicas, participantes do Programa Institucional de Bolsas de Iniciação à Docência (Pibid), bem como a importância do programa e as vivências que ele possibilita. Para tanto, aplicamos um questionário semiestruturado a vinte e cinco bolsistas de iniciação à docência e abordamos as respostas por meio de pressupostos teórico-metodológicos da análise textual discursiva. Os resultados deram origem a um metatexto, que indica o desenvolvimento de um interesse pela profissão docente por meio da prática, além de dificuldades encontradas dentro e fora da escola, como a visão da profissão, questões políticas e monetárias, que levam os sujeitos ao não reconhecimento da profissão.

Abstract: In the face of the already known importance of education, and the pursuit of improved initial education programs, this article sets out to investigate early tokens of the emergence of teacher identities among Biology undergraduates within the Institutional Program for Teaching Initiation Scholarships (Pibid), as well as the importance of the program and the experiences it provides. In order to do that, we used discursive textual analysis (ATD), and a semi-structured questionnaire with twenty-five students in the program. The answers to the questionnaire generated a metatext that reveals the development of a concern for the teaching profession through practice, as well as difficulties found inside and outside of school, such as the status of the profession, political and monetary factors that may lead to the profession being neglected.

RESUMO: Este estudo versa sobre a validação de um questionário aplicado aos licenciandos do primeiro e último ano das licenciaturas em Biologia, Ciências, Física, Química e Pedagogia, sendo selecionadas duas diferentes instituições para cada curso. O instrumento de pesquisa passou pela validação semântica, realizada por seis pesquisadores doutores das áreas de Ensino (Biologia, Física e Química) e a aplicação de um teste piloto com licenciandos do curso de Biologia. Após a análise semântica e o teste piloto, três assertivas foram eliminadas, ficando o questionário final constituído por 81 assertivas. Para avaliar a confiabilidade do instrumento (validação estatística) foi realizado o teste de Alpha de Cronbach, análise fatorial, Kaiser-Meyer-Olklin (KMO) e o de Esfericidade de Bartlett. Após a aplicação dos testes foram eliminadas 30 assertivas, tornando possível a Análise dos Componentes Principais (ACP). O número amostral foi considerado satisfatório para a sistematização e análise dos dados, quando analisado o valor do KMO.

ABSTRACT: The present study concerns the validation of a questionnaire applied to first and last year undergraduate students in Biology, Sciences, Physics, Chemistry and Pedagogy, being selected two different institutions for each course. The research instrument went through the semantic validation, carried out by six PhD researchers in the areas of Teaching (Biology, Physics and Chemistry) and also through a pilot test with Biology students. After the semantic analysis and the pilot test, three questions were deleted so that the final questionnaire became composed of 81 questions. To evaluate the reliability of the instrument (statistical validation) the Cronbach Alpha test, factorial analysis, Kaiser-Meyer-Olklin (KMO) and Bartlett’s Sphericity were carried out. After the application of these tests, 30 assertions were eliminated, making the Principal Component Analysis (PCA) possible. The sample number was considered satisfactory for the systematization and analysis of the data, when the KMO value was analyzed.

RESUMEN: Este estudio versa sobre la validación de un cuestionario aplicado a estudiantes de primer y último año de las licenciaturas en Biología, Ciencias, Física, Química y Pedagogía, para ello fueron seleccionadas dos diferentes instituciones para cada carrera. El instrumento de investigación pasó por una validación semántica, realizada por seis investigadores doctores de las áreas de Enseñanza (Biología, Física y Química), y la aplicación de una prueba piloto con estudiantes de la carrera de Biología. Después del análisis semántico y la prueba piloto, se eliminaron tres aserciones, y el cuestionario quedó constituido por 81 aserciones. Para evaluar la fiabilidad del instrumento (validación estadística), se realizó la prueba de Alpha de Cronbach, análisis factorial, Kaiser-Meyer-Olklin (KMO) y la prueba de esfericidad de Bartlett. Después de la aplicación de las pruebas, se eliminaron 30 aserciones, lo que hizo posible el Análisis de Componentes Principales (ACP). El número de muestreo fue considerado satisfactorio para la sistematización y análisis de los datos, cuando analizado el valor del KMO.

Two new meroterpenoid hydroquinones,rel-(4bE,6Z,8E,9aS,10S)-1,4-dihydroxy-9a,10-dihydro-10,12-epoxy-5-methylbenzo[a]azulen-12-one andrel-(4bZ,6Z,8E,9aS,10S)-1-hydroxy-9a,10-dihydro-4,11:10,12-diepoxy-benzo[a]azulen-11,12-dione, along with the known peptide derivative (S)-N-benzoylphenylalanine-(S)-2-benzamide-3-phenylpropyl ester, were isolated from the roots of Cordia globosa. Their structures were determined by 1D and 2D nuclear magnetic resonance (NMR) spectrometry, Fourier transform infrared (FTIR) spectroscopy and high resolution atmospheric pressure chemical ionization mass spectrometry (HRAPCIMS) data analysis. The new compounds were tested against three human cancer cell lines (colon adenocarcinoma, ovarian carcinoma and glioblastoma), but none of them exhibited any activity.

The fish industry generates high volume of waste from fish oil that can have the extraction of its lipids used as nutraceuticals and foods. The objective of this study was to produce unsaturated fatty acids from industrialized fish oil by means of a differentiated hydrolysis process. The samples used were crude fish oil obtained from Campestre industry and characterized through physical-chemical parameters, according to AOCS: acidity, peroxide, saponification, iodine and percentage of free fatty acids and also obtained the fatty acid profile through derivatization method for gas chromatography. The results obtained for the oleochemical indices for refined oil were similar to the data found on the literature. The content of polyunsaturated fatty acids (PUFA) was found of 32,78%, with 9,12% of docosahexaenoic (DHA) and 10,36% of eicosapentaenoic (EPA), regarding monounsaturated fatty acids (MUFA) content was of 30,59% in the hydrolyzed fish oil in relation to refined (20,06%). Thus, it can be concluded that the hydrolysis process used for oils from fish-waste was satisfactory on the production of absolute yield of lipids in the process and significant preservation on the percentages of EPA and DHA, interesting on the production of nutraceuticals and nutrition of aquatic animals, including shrimp in captivity.

The evaluation of filtration methods on the yield and oleochemicals characteristics on the crude fish oil from the soapstock of marine fish for purposes of nutrition has been conducted in this work. The analytical properties of the crude and the neutralized oil with three excesses of sodium hydroxide (NaOH, 20%, 40% and 60%) were carried out on two different ways with organza and the “glass wool”. The neutralization of the oil brought about a notable improvement in the analytical properties of the oil. Thus, it leads to a high quality fish oil in terms of taste, colour, odours, shelf life and market value. Based on the improved characteristics of the oil, it could be suitable for applications in pharmaceutical and food industries.

A relação entre esporte e mídia é indissociável nos dias de hoje. Assim, o presente estudo teve como objetivo quantificar o número de notícias sobre o futebol profissional masculino e analisar a construção da imagem do treinador. Para isso, foram coletadas todas as notícias esportivas de um site de grande visitação durante trinta dias. Concluiu-se que há, nesse site, um direcionamento das notícias para o futebol masculino profissional e seus treinadores, sendo que as ideias transmitidas sobre eles são principalmente ligadas a sua competência e à articulação tática/técnica da equipe.

The relationship between sport and media is inseparable today. Therefore, this study aimed to quantify the number of news reports about male professional soccer, and analyze the construction of the image associated with soccer coaches. To this end, every sports news from a largely accessed website was collected for 30 days. It was concluded that, in Brazil, these news are directed to male professional soccer and its coaches, with the ideas concerning the latter being mainly related to their competence and the tactical/technical articulation of the team.

La relación entre el deporte y los medios de comunicación es indivisible. Así siendo, el estudio presente tuvo como objetivos cuantificar el número de noticias sobre fútbol profesional masculino analizando la construcción de la imagen del entrenador. Para eso fueron recopiladas todas las noticias deportivas de una página web de grande visitación durante 30 días. Se concluyó que existe, en Brasil un direccionamiento de las noticias para el fútbol masculino profesional y sus entrenadores, siendo que las ideas transmitidas sobre estos son principalmente vinculadas a su competencia y a la articulación táctica/técnica del equipo.

Atualmente ressurge uma tendência reducionista biológica no âmbito da psicanálise. Neste ensaio, apresentamos a forma como Freud empreendeu sua crítica contra essa concepção através de duas rupturas epistemológicas: a teoria sexual e a teoria dos sonhos.

A biological reductionism tendency in the psychoanalytical sphere reappears nowadays. In this essay we present the way Freud undertook his critics against this conception through two epistemological ruptures: the sexual theory and the theory of dreams.

A técnica de inoculação com bactérias diazotróficas endofíticas na cana-de-açúcar apresenta-se como uma prática alternativa para promover o crescimento vegetal menos dependente da adubação nitrogenada. Este trabalho teve como objetivo avaliar a contribuição da fixação biológica de nitrogênio (FBN) por diferentes estirpes de Herbaspirillum seropedicae e Gluconacetobacter diazotrophicus inoculadas em plantas de cana-de-açúcar originadas de semente. As sementes foram plantadas em vasos com solo não estéril, inoculadas com as diferentes bactérias e mantidas por 10 meses ao ar livre. As maiores contribuições da FBN ocorreram com a inoculação de estirpes Herbaspirillum seropedicae, e dependeram da espécie vegetal utilizada como testemunha. As raízes apresentaram-se como o órgão vegetal preferencial para o estabelecimento das espécies inoculadas.

The inoculation technique with endophytic diazotrophic bacteria in sugarcane has been shown as an alternative practice to plant growth promotion. The aim of this work was to evaluate the biological nitrogen fixation (BNF) contribution by different strains of Herbaspirillum seropedicae and Gluconacetobacter diazotrophicus in sugarcane plant inoculated from seeds. The seeds were planted in pots filled with non-sterile soil, inoculated with the bacterial strains and grown 10 months outside of the greenhouse. The BNF contribution of the inoculated bacteria varied depending on the plant species used as a control. The highest BNF contribution as well as the highest populations of reisolated bacteria was observed with inoculation of H. seropedicae strains. The roots appeared to be the preferential tissues for the establishment of the inoculated species.