INTERFACE ENTRE A EJA E EDUCAÇÃO ESPECIAL: O PROFESSOR E A INCLUSÃO DE JOVENS E ADULTOS COM DEFICIÊNCIA INTELECTUAL

This study aimed to understand the scope of teaching practices and working conditions of an adult education teacher of students with intellectual disabilities enrolled in evening special education programs at the elementary schools.  The study was qualitative in nature, with characteristics of case study methodology. Data for the study were derived from semi-structured interviews, which respond adequately to our research goals. Results of the analysis point to the precarious work conditions of teachers of adult education and how this instability involves the organization and planning of curricula for students, including those with intellectual disabilities.Este estudio tuvo como propósito comprender las prácticas de enseñanza y las condiciones de trabajo del profesor de la EJA, junto a los estudiantes con discapacidad intelectual, matriculados en esta modalidad de enseñanza, en el periodo nocturno y en enseñanza fundamental. Se trata de una investigación de naturaleza cualitativa, con características de estudio de caso. Como procedimiento de recolecta de datos para la realización del estudio, se optó por utilizar la entrevista semiestructurada, la cual respondió adecuadamente a nuestros objetivos de investigación. Los resultados de los análisis, evidencian la precariedad de las condiciones de trabajo del profesor de la EJA, y como esta precariedad implica en la organización y planeamiento de los contenidos curriculares destinados a los estudiantes, inclusive aquellos que presentan discapacidad intelectual. Este estudo teve como escopo compreender as práticas de ensino e as condições de trabalho do professor da EJA junto aos estudantes com deficiência intelectual matriculados nesta modalidade de ensino, no período noturno, e ensino fundamental.  Trata-se de uma pesquisa de natureza qualitativa, com características de estudo de caso. Como procedimento de coleta de dados para a realização da pesquisa, optou-se por utilizar a entrevista semiestruturada, a qual respondeu adequadamente aos nossos objetivos de investigação. Os resultados das análises evidenciam a precariedade das condições de trabalho do professor da EJA e como esta precariedade implica na organização e planejamento dos conteúdos curriculares destinados aos alunos, inclusive aqueles que apresentam deficiência intelectual

Bone Mineral Density in Severely Obese Women: Health Risk and Health Protective Risk Factors in Three Different Bone Sites

Factors associated with bone mineral density (BMD) are poorly known in severely obese individuals i.e., a body mass index (BMI) > 35 kg/m^{2}. The objectives of this study were to describe the bone health profile of severely obese Brazilian women, to identify the health risk and health protective factors for BMD in this group and to assess whether these factors vary according to three different bone sites. BMD was assessed using dual-energy X-ray absorptiometry (DXA). This study analyzed baseline data from 104 women who had an average BMI of 43.7 ± 4.5 kg/m^{2} and presented the following BMD status: 1.283 ± 0.094 g/cm2 for total body, 1.062 ± 0.159 g/cm^{2} for vertebral column and 1.195 ± 0.134 g/cm2 for hip. They took part in the “Effect of nutritional intervention and olive oil in severe obesity” randomized clinical trial (DieTBra Trial). The risk factors negatively associated with lower BMD were age ≥50 years for the three bone sites i.e., total body, vertebral column and hip. Smoking for total body BMD (p = 0.045); BMI ≥ 50kg/m^{2} for vertebral column and hip; menopause for hip; high C-reactive protein (CRP) levels (p = 0.049), insufficient zinc (p = 0.010) and previous fracture for vertebral column (p = 0.007). The protective factors positively associated with BMD were physical activity (≥150 min/week (p = 0.001)) for hip; type 2 diabetes mellitus (DM2) (p < 0.0001) total body and adequate vitamin D levels from food consumption (p = 0.039) for vertebral column. A BMI ≥ 50 kg/m^{2} was a risk factor for lower BMD. The findings showed that protective and risk factors varied by bone site. The original study is registered with ClinicalTrials.gov. (protocol number: NCT02463435)

Molecular mapping in tropical maize (Zea mays L.) using microsatellite markers. 1. Map construction and localization of loci showing distorted segregation

Microsatellites have become the most important class of markers for mapping procedures. Primarily based on restriction fragment length polymorphism (RFLP) markers, several molecular genetic maps of maize have been developed, mainly using temperate inbred maize lines. To characterize the level of polymorphism of microsatellite loci and construct a genetic map in tropical maize, two elite inbred lines, L-08-05F and L-14-4B, were crossed to produce 400 F-2 individuals that were used as a mapping population. A survey of 859 primer pair sequences of microsatellites was used. The polymorphism screens of each microsatellite and genotype assignment were performed using high-resolution agarose gels. About 54 % of the primer sets gave clearly scorable amplification products, 13 % did not amplify and 33% could not be scored on agarose gels. A total of 213 polymorphic markers were identified and used to genotype the mapping population. Among the polymorphic markers, 40 showed loci deviating from expected Mendelian ratios and clusters of deviating markers were located in three chromosome regions. Non-Mendelian scoring was present in 19 markers. The final genetic map with 117 markers spanned 1634 cM in length with an average interval of 14 cM between adjacent markers.13929610

Nuevo registro de planta hospedera para Stator aegrotus (Sharp, 1885) (Coleoptera: Bruchidae) y notas sobre daños en semillas en Brasil

Se recolectaron frutos directamente del suelo de Senegalia polyphylla (DC.) Britton Rose (Fabaceae) en la región de Sinop, Mato Grosso, Brasil. Los insectos emergidos fueron identificados como Stator aegrotus (Sharp, 1885) (Coleoptera: Bruchidae), y dado que esta planta no se había registrado como hospedero para esta especie de brúquido, constituye el primer registro de asociación para ambas especies. El daño causado a las semillas alcanzó un 35.4%, siendo el consumo de tejidos seminales de 0.04530 g, que representa un 55.63% del peso de una semilla. En la evaluación fisiológica de las semillas se constató que el 100% de las semillas dañadas no germinaron.Senegalia polyphylla (DC.) Britton Rose (Fabaceae) fruits were collected directly from the soil in the Sinop region, Mato Grosso, Brazil. The emerged insects were identified as Stator aegrotus (Sharp, 1885) (Coleoptera: Bruchidae), and since this plant had not been registered as a host for this species of bruchid, this constitutes the first association record for both species. The damage caused to the seeds reached 35.4%, with the consumption of seminal tissues of 0.04530 g, which represents 55.63% of the weight of a seed. In the physiological evaluation of the seeds, it was found that 100% of the damaged seeds did not germinate

Reflexiones sobre el papel de la contextualización en la enseñanza de ciencias

La importancia de la contextualización y de la discusión del papel de la ciencia en el desarrollo social y económico es innegable para la enseñanza de las ciencias. Sin embargo, esto no debe significar una negligencia ni del conocimiento teórico ni de las estrategias que forman parte de su construcción y aplicación. Así, se dibuja un peligroso cuadro cuando se asume la contextualización como el único y primordial objetivo de la educación científica. Este artículo presenta un estudio realizado con 15 alumnos del último año de la carrera en Docencia de Química, cuyos resultados evidencian una preocupante «supervaloración» de lo cotidiano en detrimento de otros aspectos igualmente importantes del conocimiento químico

Estudo sobre lubrificação em rolamentos e desenvolvimento de um tribômetro método reichert

O estudo se destina a abordagem das possíveis falhas em elementos de máquinas (rolamentos) fabricados em AISI 52100 e seus principais mecanismos de desgaste sendo adesão, abrasão, corrosão e fadiga. Serão apresentados os principais tipos de lubrificantes, dando ênfase nos óleos e graxas quanto a suas características físico-químicas e seus principais aditivos. Para viabilidade do estudo foi desenvolvido um dispositivo que realizou ensaios em um mesmo lubrificante de viscosidade 15W4-50 com períodos de utilização distintos sendo estes 1000, 2000 e 3000 km, desta forma foi possível medir o rompimento da película de lubrificação em função da pressão  exercida  pelo  dispositivo  e  sendo  assim  exemplificar  de  maneira  efetiva  os  efeitos danosos aos elementos de máquinas em função da má gestão da lubrificação

Correlation between the heterosis of maize hybrids and genetic divergence among lines

The objective of this work was to evaluate grain yield of maize single cross hybrids obtained from diallel crosses among contrasting lines, to estimate the combining ability of the lines, and finally to confirm if the genetic diversity among those lines assessed by molecular markers is correlated with single cross hybrids heterosis. The 36 single cross hybrids resulting from partial diallel and 12 parental lines were evaluated in Campinas in randomized block design, with three replicates and two control lines checks. General combining ability of the lines was estimated according to Griffing model 4. Correlations among matrices were estimated through Mantel statistics, considering heterosis, yield and specific combining ability with genetic divergence assessed by AFLP and SSR. The hybrids PM518 x L111 exhibited an outstanding yield and the lines PM518, IP4035 and L111 showed positive general combining ability. The estimate heterosis ranged from 927 to 6,698 kg ha(-1). A positive and significant correlation was observed in parental lines between heterosis and genetic diversity assessed by AFLP and SSR. The genetic divergence, however, was not enough to determine the specific combining ability and the hybrids yield.42681181

Extraction and Fractionation of Pigments from Saccharina latissima (Linnaeus, 2006) Using an Ionic Liquid plus Oil plus Water System

There is a strong industrial interest in the development of greener and more sustainable processes based on the use of renewable resources, and a biorefinery based on marine resources, such as macroalgae, stands as a major opportunity toward that end. In this work, Saccharina latissima (Linnaeus), a brown macroalga, was used as a source of pigments to develop an integrated platform that is able to promote the extraction and separation of chlorophyll and fucoxanthin in one single step. The process was studied, and its operational conditions were optimized with yields of extraction of chlorophyll and fucoxanthin of 4.93 ± 0.22 mgchl·gdry biomass–1 and 1956 ± 84 μgfuco·gdry biomass–1, respectively. These results were achieved with extraction systems composed of 84% of an aqueous solution of a tensioactive phosphonium-based ionic liquid (IL) at 350 mM + 16% of sunflower oil, during 40 min, using a solid–liquid ratio of 0.017 gdry biomass·mLsolvent–1. After the separation of both aqueous IL-rich and oil-rich phases, the IL content in both phases was investigated, the oil phase being free of IL. Envisioning the industrial potential of the process developed in this work, the recovery of the IL from the aqueous IL-rich phase of the initial system was attempted by a back-extraction using organic solvents immiscible in water, being shown that 82% of the IL can be recovered and reused in new cycles of extraction. The environmental and economic impacts of the final process proposed for the extraction and fractionation of chlorophyll and fucoxanthin were evaluated. Different scenarios were considered, but summing up the main results, the solvents’ recycling allowed better results, proving the economic and environmental viability of the overall process

A avaliação perceptiva de atributos paralinguísticos e extralinguísticos na fala de uma comunidade de prática

Este trabalho tem como objetivo investigar as impressões causadas, pelo falar de sujeitos de uma comunidade de prática caiçara, em grupos de ouvintes de três localidades diversas, por meio da aplicação de um questionário de diferencial semântico, o qual contém descritores referentes a atributos paralinguísticos e extralinguísticos: psicológicos, sociais, culturais, físicos e econômicos. Trata-se de uma pesquisa de natureza sociofonética perceptiva que compreende uma tarefa de produção e uma de percepção e utiliza o método de análise estatística multidimensional. Os resultados indicam que a fala da comunidade caiçara não causou nenhuma estranheza ou incompreensão, mas foi considerada pouco agradável pelos juízes de todas as localidades. Com base nas variáveis estatisticamente significantes, os caiçaras, a partir da percepção da sua maneira de falar, foram julgados como pessoas que exercem trabalhos manuais, apresentam situação financeira baixa e são ingênuos, simplórios e humildes