GERMINATION OF SEEDS OF Chorisia glaziovii O. Kuntze SUBMITTED TO WATER STRESS AT DIFFERENT TEMPERATURES

Chorisia glaziovii O. Kuntze, da fam\uedlia Bombacaceae \ue9 uma florestal nativa do Nordeste brasileiro, conhecida popularmente como barriguda devido ao tronco bojudo, seus frutos s\ue3o deiscentes e as sementes revestidas por uma estrutura fibrosa (l\ue3) utilizada nas ind\ufastrias de estofados. Por isso objetivou-se avaliar o comportamento germinativo e o vigor das sementes de Chorisia glaziovii, submetidas ao estresse h\ueddrico em diferentes temperaturas. Os tratamentos consistiram dos potenciais de -0,1; -0,2 e -0,3 MPa simulados com polietileno glicol (PEG 6000), al\ue9m do n\uedvel zero (0,0) utilizando apenas \ue1gua destilada, nas temperaturas constantes de 20, 25 e 30\ub0C, em delineamento experimental inteiramente ao acaso. As vari\ue1veis analisadas foram: porcentagem, primeira contagem e \uedndice de velocidade de germina\ue7\ue3o de sementes, al\ue9m do comprimento de ra\uedzes e altura de parte a\ue9rea, e massa seca de ra\uedzes e parte a\ue9rea das pl\ue2ntulas. As maiores porcentagens de germina\ue7\ue3o das sementes de Chorisia glaziovii foram obtidas na aus\ueancia de estresse h\ueddrico independentemente da temperatura, sendo a de 20\ub0C prejudicial \ue0 germina\ue7\ue3o das sementes, com redu\ue7\ue3o para 20% no potencial de -0,1MPa; nas temperaturas mais elevadas, as sementes foram mais tolerantes ao estresse h\ueddrico, com uma porcentagem de 68% neste mesmo potencial. As sementes de Chorisia glaziovii s\ue3o sens\uedveis ao estresse h\ueddrico, com germina\ue7\ue3o totalmente inibida em todas as temperaturas no potencial de -0,3 MPa.Chorisia glaziovii O. Kuntze, the Bombacaceae family is a native forest of northeastern Brazil, popularly known as paunchy, due to bulging trunk. Its fruits are dehiscent and its seeds covered with a fibrous structure (wool) used in upholstery industries. Therefore, it was aimed to evaluate the germination behavior and seed germination of Chorisia glaziovii, subjected to water stress at different temperatures. The treatments consisted of the potential of -0.1; -0.2 And -0.3 MPa simulated with polyethylene glycol (PEG 6000) plus zero (0,0) level using only distilled water, at constant temperatures of 20, 25 and 30 \ub0C in a totally randomized experimental design chance. The analyzed variables were: percentage, first count and rate of germination rate of seeds, plus the length of roots and shoots of height, and dry weight of roots and shoots of seedlings. The highest percentage of germination of Chorisia glaziovii were obtained in the absence of water stress independent of temperature, so the 20 \ub0C detrimental to seed germination, reducing to 20% in potential -0.1MPa; at higher temperatures the seeds were more tolerant to water stress, with a percentageof 68% at this same potential. The seeds of Chorisia glaziovii are sensitive to water stress, with completely inhibited germination at all temperatures in the potential of -0.3 MPa

The view of teachers on bullying and implications for nursing

Objetivo: Compreender o bullying escolar, na perspectiva dos professores, e refletir sobre as possíveis ações da área da saúde em seu enfrentamento. Para tanto, tomaram- se por base as diretrizes do Programa Saúde na Escola, dos Ministérios da Saúde e da Educação. Método: Estudo de caso qualitativo, realizado com professores de uma escola pública de Minas Gerais. Foram utilizados grupos focais na coleta de dados e o material empírico foi decodificado a partir de técnica de análise temática de conteúdo, resultando em uma categoria analítica: concepções e experiências de professores diante do bullying. Resultados: Foram identificadas percepções pontuais sobre o fenômeno e utilização de recursos de intervenção pouco eficazes. No plano interpretativo, problematizaram-se as contribuições da saúde e da enfermagem no redimensionamento das intervenções e no processo de formação continuada dos professores. Conclusão: Os resultados apontam para a construção de práticas intersetoriais para o enfrentamento do bullying.To understand school bullying from the perspective of teachers and reflect about the possible actions of the health area when coping with it. The guidelines of the School Health Program of the Ministries of Health and Education were used to reach that purpose. Method: A qualitative study carried out with teachers of a public school in Minas Gerais. Focus groups were used to collect data and the empirical material was decoded from thematic analysis of content, resulting in an analytical category: conceptions and experiences of teachers on bullying. Results: Specific perceptions about the phenomenon and the use of ineffective intervention resources were identified. In the interpretive plan were problematized the health and nursing contributions with resizing the interventions and the continuing training process of teachers. Conclusion: The results point to the construction of intersectoral practices forcoping with bullying.Objetivo: Comprender el bullying escolar desde la perspectiva de los profesores, y reflexionar sobre las posibles acciones del área de salud en su enfrentamiento. Tomando como base los lineamientos del Programa de Salud Escolar, de los Ministerios de Salud y de Educación. Método: Estudio de caso cualitativo realizado con los profesores de una escuela pública en Minas Gerais. Para la recolección de datos se utilizaron grupos focales y el material empírico fue decodificado a partir de la técnica de análisis temático de contenido, dando lugar a una categoría analítica: concepciones y experiencias de los profesores sobre el acoso escolar. Resultados: Se identificaron percepciones específicas sobre el fenómeno y la utilización de recursos ineficaces de intervención. En el plano interpretativo, se problematizaron las contribuciones de la salud y de la enfermería en el redimensionamiento de las intervenciones y en el proceso de formación continua de los profesores. Conclusión: Los resultados apuntan a la construcción de prácticas intersectoriales para el enfrentamiento del bullying.CIEC - Centro de Investigação em Estudos da Criança, UM (UI 317 da FCT

Modelling the diameter distribution of eucalyptus stands using the Gamma function

Neste estudo, avaliou-se o comportamento da fun??o densidade de probabilidade Gama com 2 par?metros para a descri??o da distribui??o diam?trica de um povoamento de eucalipto em diferentes idades. Um modelo de proje??o da distribui??o de di?metros foi constru?do e ajustado aos dados das parcelas permanentes. Os ajustes da fun??o Gama foram avaliados pelo teste de Kolmogorov-Smirnov (KS) e o modelo de distribui??o diam?trica foi avaliado por meio dos coeficientes de determina??o e gr?ficos de res?duos das estimativas geradas pelas equa??es que compuseram o modelo. As distribui??es diam?tricas estimadas pelo sistema de equa??es foram comparadas com as distribui??es observadas pelo teste KS. A maioria dos ajustes apresentou ader?ncia pelo teste KS. O modelo foi capaz de projetar as distribui??es diam?tricas de maneira satisfat?ria, acompanhando a tend?ncia de achatamento da curva da distribui??o em uma sequ?ncia de idades. Conclui-se que a fun??o Gama pode ser utilizada em um modelo de proje??o da distribui??o dos di?metros de povoamentos de eucaliptoFunda??o de Amparo ? Pesquisa do Estado de Minas Gerais (FAPEMIG)Empresa de Pesquisa Agropecu?ria de Minas Gerais (EPAMIG)Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico (CNPq)Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES)This study evaluated the behavior of the Gamma probability density function to describe the diameter distribution of eucalyptus stand at different ages. A projection model of the distribution of diameters was constructed and fitted to data from permanent plots. The settings of the Gamma function were assessed by Kolmogorov-Smirnov (KS) test and the diametric distribution model was assessed by the determination coefficients and residual graphs of the estimates generated by the equations that compose the model. The diameter distributions estimated by the system of equations were compared with the distributions observed by the KS test. Most of the adjustments made by the KS test presented adherence. The model was able to design the diameter distributions satisfactorily, following the trend of flattening of the curve of distribution in a sequence of ages. Thus, the Gamma function can be used with statistical efficiency in a projection model of the diameter distribution in eucalyptus stands

Performance of the crosses of four strains of European quails

Todos os textos, informa??es e resultados apresentados s?o de inteira responsabilidade dos autores.Ag?ncias financiadoras para a realiza??o desse trabalho: Funda??o de Amparo ? Pesquisa do Estado de Minas Gerais (FAPEMIG), Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES), Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico (CNPq) e Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM).Objetivou-se com este estudo avaliar as caracter?sticas de desempenho de codornas de corte provenientes do cruzamento de quatro linhagens puras. Foi avaliado seis grupos gen?ticos (G12, G13, G14, G23, G24 e G34) resultantes dos cruzamentos das linhagens puras, distribu?das em um delineamento inteiramente ao acaso, com tr?s repeti??es. Foram avaliadas as caracter?sticas de pesos corporais aos sete, 14, 21, 28, 35 e 42 dias de idade. N?o foi observado intera??o grupo gen?tico x sexo significativo (P?0,05) para as caracter?sticas de desempenho das aves, no entanto, houve efeito significativo a partir do 14? dias de idade tanto para o sexo quanto para o grupo gen?tico. Correla??es fenot?picas de alta e m?dia magnitude s?o observadas entre todos os pesos corporais.The purpose of this study was to evaluate the performance characteristics of meat quails from four inbred lines crossing. Six genetic groups were evaluated (G12, G13, G14, G23, G24 and G34) resulting from the pure lines crossings, distributed in a completely randomized design with three replications. The characteristics of body weights were evaluated at 7, 14, 21, 28, 35 and 42 days of age. There was no significant interaction (P?0,05) between genetic group x sex for the performance characteristics of birds. Nevertheless, there was a significant effect from the 14th day of age both for sex and for the genetic group. Phenotypic correlations of high and medium magnitude are observed among all body weights

A pre formulation study of tetracaine loaded in optimized nanostructured lipid carriers

Tetracaine TTC is a local anesthetic broadly used for topical and spinal blockade, despite its systemic toxicity. Encapsulation in nanostructured lipid carriers NLC may prolong TTC delivery at the site of injection, reducing such toxicity. This work reports the development of NLC loading 4 TTC. Structural properties and encapsulation efficiency EE amp; 8201; gt; amp; 8201;63 guided the selection of three pre formulations of different lipid composition, through a 23 factorial design of experiments DOE . DLS and TEM analyses revealed average sizes 193 220 nm , polydispersity lt; amp; 8201;0.2 , zeta potential amp; 8722; amp; 8201;21.8 to amp; 8722; amp; 8201;30.1 mV and spherical shape of the nanoparticles, while FTIR ATR, NTA, DSC, XRD and SANS provided details on their structure and physicochemical stability over time. Interestingly, one optimized pre formulation CP TRANS TTC showed phase separation after 4 months, as predicted by Raman imaging that detected lack of miscibility between its solid cetyl palmitate and liquid Transcutol lipids. SANS analyses identified lamellar arrangements inside such nanoparticles, the thickness of the lamellae been decreased by TTC. As a result of this combined approach DOE and biophysical techniques two optimized pre formulations were rationally selected, both with great potential as drug delivery systems, extending the release of the anesthetic gt; amp; 8201;48 h and reducing TTC cytotoxicity against Balb c 3T3 cell

The bacterial community structure in an alkaline saline soil spiked with anthracene

Background: The application of polycyclic aromatic hydrocarbons (PAHs) will affect the bacterial community structure as some groups will be favoured and others not. An alkaline saline soil with electrolytic conductivity (EC) 56 dS m-1 was spiked with anthracene and acetone while their effect on bacterial community structure was investigated. Results: The percentages of Acidobacteria and Actinobacteria decreased over time, while the percentage of Proteobacteria, mostly Xanthomonadales, increased. The percentage of the phylotypes belonging to the Nocardioides , Rhodococcus and Streptomyces , known degraders of PAHs, was larger in the anthracene-amended soil than in the acetone-amended and unamended soil at day 14. The phylotypes belonging to the genera Sphingomonas , also a known degrader of PAHs, however, was lower. Weighted and unweighted PCoA with UniFrac indicated that phylotypes were similar in the different treatments at day 0, but changed at day 1. After 14 days, phylotypes in the unamended and acetone-amended soil were similar, but different from those in the anthracene-spiked soil. Conclusions: It was found that incubating the soil and contaminating it with anthracene changed the bacterial community structure, but spiking the soil with acetone had little or no effect on the bacterial community structure compared to the unamended soil