Abstract Purpose: This study assessed the regeneration potential of mesenchymal stem cells (MSC) from adipose tissue associated with platelet-rich plasma (PRP) in bone regeneration. Methods: Thirty Wistar rats (Rattus norvegicus albinos) were divided into five groups (according to the grafting material and time to euthanasia): (1) autograft - 14 days (control), (2) autograft - 28 days (control), (3) MSC + PRP - 14 days, (4) MSC + PRP + papaverine - 14 days and (5) MSC + PRP + papaverine - 28 days. After euthanasia, the graft was removed and histological slides were prepared. They were assessed by a blinded pathologist using a previously published histological scale as parameter. Results: There was some degree of neoformed bone trabeculae (NBT) in 93.3% of the samples, as well as osteoblastic activity (OA). The autograft groups (14 and 28 days) had higher levels in the formation of bone trabeculae. Nonparametric data were analyzed using the Wilcoxon-Mann-Whitney test and proved not to be statistically significant at p < 0.05. Conclusions: Experimental parietal bone reconstruction, combining MSC, PRP and papaverine presented regeneration in all groups with no significant difference among them.

RESUMO. Foi realizado um experimento com frangos de corte fêmeas, objetivando-se avaliar o efeito da utilização de probióticos e simbióticos sobre o desempenho e rendimento de carcaça e dos principais cortes comerciais e vísceras comestíveis destes animais. Foram utilizados 720 pintos de um dia de idade da linhagem Cobb, distribuídos em um delineamento experimental inteiramente casualizado, com quatro tratamentos e seis repetições de 30 aves cada em uma densidade de 10 aves/metro quadrado (m2). Aos 42 dias de idade foram abatidos dois frangos por repetição, para a avaliação do rendimento de carcaça e suas partes. A inclusão de probióticos e simbióticos na ração não proporcionou diferença significativa no rendimento de carcaça e suas partes sendo equivalente ao tratamento com antibióticos. Não foi observada diferença significativa entre os tratamentos, inclusive nos controles que não receberam qualquer fator aditivo. Da mesma forma os demais parâmetros de desempenho foram equivalentes para os quatro tratamentos, com exceção do ganho de peso, que foi significativamente menor no tratamento probiótico. Conclui-se que esses aditivos são uma alternativa importante na substituição dos antibióticos como melhoradores de crescimento, os quais já foram banidos em muitos países.

ABSTRACT. An experiment was carried out with female broilers, aiming to evaluate the effect of using probiotics and symbiotics on growth performance and yield of carcasses and of the main commercial cuts and edible viscera. A total of 720 one-day-old Cobb chicks, distributed in a completely randomized experimental design with four treatments and six replicates of 30 birds each at a stocking density of 10 birds per square meter (m2). At 42 days old two broilers of each experimental unit were sacrificed to evaluate the carcass yield and its parts. The carcass yield was not affected by the inclusion of probiotics and symbiotics in the diet being equivalent to the antibiotic group. No significant difference was observed among the treatments, even in the controls that did not receive any additive factor. All the performance parameters were similar for the four treatments, with the exception of weight gain, that was significantly lower in probiotic treatment. It was concluded that these additives are important alternative to replace antibiotics as growth enhancers, which have already been banned in many countries.

La ácaro rojo, Tetranychus urticae es una plaga importante en el rosal (Rosa spp.) siendo el control químico el método más utilizado. Los ácaros Phytoseiidae se utilizan en el control biológico de ácaros plagas. Este estudio tuvo como objetivo evaluar el efecto de liberaciones del fitoseido Neoseiulus californicus sobre T. urticae en rosales en invernadero. Además, se estudió la selectividad de algunos plaguicidas para el control de enfermedades y del ácaro rojo. Se realizaron tres experimentos en un diseño completamente al azar con rosal en macetas. Para la infestación se colocaron 20 hembras del ácaro rojo por planta. A los nueve días, entre 0 y 14 ácaros depredadores fueron liberados por planta. Después de 15 días se repitió la liberación en uno de los experimentos. Para la evaluación de la depredación se colectaron al azar hojas de rosal, de las regiones apical, media y basal, contando el número de ácaros vivos. Para determinar la selectividad, se utilizó el método residual de aspersión en superficie de vidrio en laboratorio, mediante una torre de Potter y las dosis más altas recomendadas por los productos. Se evaluó el número de hembras vivas y huevos puestos por el depredador. En conclusión, N. californicus es eficiente en el control de T. urticae en invernadero. El aceite mineral, acefate, tebuconazol, iprodiono, fenpropatrin y abamectin fueron poco perjudiciales para el depredador y pueden ser utilizados en control integrado. En cambio, fenpyroximato fue altamente tóxico al ácaro depredador.

The two-spotted spider mite, Tetranychus urticae (Tetranychidae), is an important pest in rosebush (Rosa spp.), currently controlled by using agrochemicals. Phytoseiidae mites are used for biological control of pest mites. This study aimed to evaluate the biological control of the T. urticae on rosebushes grown in greenhouse after releases of the predatory mite Neoseiulus californicus (Phytoseiidae). In addition, the selectivity of some agrochemicals for disease and mite control was tested. Three experiments were conducted in a completely randomized design using potted roses. Twenty females per plant of the two-spotted spider mite were placed for infestation. After nine days, 0 to 14 predatory mites per plant were released. After 15 days a new release was made in one of the experiments. Predation was assessed one month after release by randomly collecting rosebush leaves from the apical, medial and basal regions, and the number of living T. urticae was counted. Selectivity was studied by using the laboratory method of residue spraying on a glass surface. Products were sprayed in a Potter tower with the highest doses recommended for the products. The number of live females and eggs laid by the predatory mite were evaluated. It was concluded that N. californicus is efficient in controlling the T. urticae under greenhouse conditions. The mineral oil, acephate, tebuconazole, iprodione, fenpropathrin and abamectin showed to be slightly harmful to the predator and could be used for integrated control. On the other hand, fenpyroximate was highly toxic to the predator mite.

O presente artigo tem por objetivo descrever as principais mudanças ocorridas na educação profissional técnica de nível médio, nos últimos dez anos. Enfatiza-se no trabalho o processo de reorganização curricular dos cursos de educação profissional técnica de nível médio em enfermagem, frente aos princípios, diretrizes e conceitos estabelecidos pelas políticas instituídas no campo da educação em saúde, cujo objetivo é formar trabalhadores de saúde com competência profissional necessária para rever e redirecionar a realidade de saúde do país.

The purpose of this article is to describe the main changes that have taken place in mid-level technical professional education in the past ten years. The article emphasizes the curricular reorganization process that has been undertaken in the mid-level technical professional education for nursing in order to deal with the principles, guidelines, and concepts set forth by the policies that have been instituted in the education and health fields, the goal of which is to qualify health workers who have the required professional competency to review and redirect the reality of health in Brazil.

Este trabalho tem como objetivo pensar a questão da formulação, pelo movimento indígena, de uma política própria para a educação escolar. Procura descrever e analisar a trajetória do movimento dos professores indígenas da Amazônia na sua busca concreta de definição e construção de escolas indígenas, tendo como eixo referencial os doze encontros anuais já realizados pelo movimento.

This paper aims to reflect about the formulation, by the Indigenous Movement, of an adequate policy for school education. It proposes to describe and analyze the trajectory of the Amazonian Indigenous Teachers' Movement in its work to define and delineate the fundamentals of Indigenous Schools, having the past twelve Annual Meetings as the point of reference.

O presente artigo procura verificar o papel cultural-político-pedagógico do movimento dos professores indígenas do Amazonas, de Roraima e do Acre na construção de uma política indígena de educação escolar. Trabalha-se com a concepção de "escola indígena" como nova forma de instituição educacional, definindo-a a serviço de cada povo, como instrumento de afirmação e reelaboração cultural. Uma escola que contribua na conquista de espaço político - no campo da educação - pelos povos indígenas, dentro do Estado brasileiro, buscando novas relações interculturais, no marco do reconhecimento do Brasil como país pluricultural, assim como a superação da perspectiva integracionista, contrapondo-se, assim, à idéia e à realidade das "escolas para os índios". São analisados ainda os limites e as possibilidades das escolas indígenas, como recurso político-cultural de afirmação das identidades no confronto com a realidade atual, ou em seu enfrentamento, no que se refere ao contato interétnico.

The present article tries to verify the cultural-political-pedagogical role of the indigenous teachers movement from Amazon, Roraima and Acre in the construction of an indigenous school policy. The work itself is about the conception of "indigenous school" as a new form of education institution, defining it for the service of each indigenous people as an instrument of affirmation and cultural re-elaboration. A school that can contribute to the conquest of a political place - in the field of education - by indigenous people, in the Brazilian State, searching for new intercultural relations, in the mark of the Brazilian recognition as a country of cultural plurality, even though the overcoming of an integrating perspective, counterparting, this way, to the reality idea of "schools for indigenous people". Yet the limits have been analyzed and the possibilities of the indigenous schools, as a political-cultural resource of affirmation of the identities in the confrontation with current reality, or in its confrontation referring to the inter-ethnic contact.