Examining Social, Cognitive and Teaching Presences in an Online Teacher Development Course Using WhatsApp and Community of Inquiry

Over the last decade, advancements in digital technologies have raised the interest of educators in all areas. Mobile learning, specifically, has drawn great attention for its potential to promote opportunities for mediating peer interactions. Drawing on the Community of Inquiry framework Garrison, Anderson and Archer’s (2000), this paper reports a quantitative analysis of the 1,670 interactions among 38 [elementary/high school teachers of Portuguese from around Brazil who participated in a 7-week continuing education course via WhatsApp. The findings show a high level of social presence at moments that the construction of collective knowledge takes place during the course

Estratégias para o estabelecimento e manutenção de áreas livres e de baixa prevalência de moscas-das-frutas.

Determinação de uma área livre de Moscas-das-Frutas (ALMF); Metas do programa; Procedimentos para a implantação de uma ALMF; Escolha da éspecie-alvo; Seleção dos Municípios e cadastro dos produtores da região; Delimitação da faixa de proteção permanente (Área Tampão); Estrutura organizacional; Monitoramento populacional da praga; Atividades de campo; Interpretação dos dados de captura; Plano de contigência; Preparação e envio de relatórios; Criação de decreto estadual; Estabelecimento de barreiras zoofitossanitárias; Procedimentos para a manutenção de uma área livre de pragas; Medidas fitossanitárias.bitstream/CNPAT-2010/9619/1/Ci-022.pd

Triplectic Quantization of W2 gravity

The role of one loop order corrections in the triplectic quantization is discussed in the case of W2 theory. This model illustrates the presence of anomalies and Wess Zumino terms in this quantization scheme where extended BRST invariance is represented in a completely anticanonical form.Comment: 10 pages, no figure

Whey protein supplement adulteration with rice flour quantification: A simple method using ATR-FT-MIR and iPLS

In this work, a method using ATR-FT-MIR and iPLS was developed to quantify whey protein supplement adulteration with rice flour. The original vanilla flavor commercial whey protein samples were adulterated with commercial rice flour with concentrations between 11.49% to 29.14% (w/w). After the adulteration, the ATR-FT-MIR spectra were obtained with no additional preparation procedure. The iPLS model analysis was performed using RStudio software with the mdatools package. The RMSEC was 1.26, the R2= 0.954 and the cross-validation error (RMSECV) was 3.31. The prediction error (RMSEP) for the validation set was equal 3.48 and the validation R2 was 0.610. These parameters, associated with the fact that the method does not require sample preparation, demonstrate the procedure viability as a tool to quantify adulterations of whey protein with rice flour

Recomendações técnicas para o manejo da mosca-minadora no meloeiro.

Descrição e ciclo biológico; Danos econòmicos a cultura; Medidas de controle; Controle preventivo; Controle cultural; Controle com barreiras físicas; Uso de armadilhas adesivas de cor amarela; Controle biológico natural; Controle quimico; Controle alternativo; Considerações finais.bitstream/CNPAT-2010/9612/1/Ct-107.pd

Recomendações para o manejo das principais pragas do meloeiro na Região do Semi-Árido nordestino.

Auxiliar os produtores da Região Nordeste no manejo adequado das principais pragas que atacam o meloeiro, por meio da disponibilização de informações a respeito da correta identificação das pragas, sintomas de danos, táticas de controle e inimigos naturais associadosbitstream/CNPAT-2010/9620/1/Ci-024.pd

Food taboos and folk medicine among fishermen from the Tocantins River (Brazil)

Fish utilization for food and folk medicine, and fish preference of families from the Tocantins river were studied. Questionnaires were used in the 234 interviews performed in cities, towns and scatteres houses located along 100 km of river stretch. Curimatí (Prochilodus nigricans) is the most consumed fish and pacu-manteiga (Mylossoma duriventre) the most preferred species. The fish species avoided are correlated with the species used in folk medicine (r_s = 0,54, p < 0.02). Food taboos, or fish species not consumed during illness, are also cited. The usefulness of fish species for folk medicine and the piscivorous habits of most fish quoted as not consumed partially explain the food choices of fishermen. These explanations conform to materialist theories in cultural ecology

Manuseio e aplicação de defensivos agrícolas em meloeiro.

O Nordeste brasileiro é responsável por 94% da produção nacional de melão (Cucumis melo L.), e grande parte dessa produção concentra-se nos pólos irrigados do Vale do Mossoró/Açu, no Rio Grande do Norte e no Baixo Jaguaribe, no Ceará. Os produtores dessas regiões praticam uma agricultura altamente tecnificada e utilizam grande quantidade de defensivos agrícolas para controlar pragas e fitopatógenos que ocorrem nas lavouras