Symmetry Nonrestoration in a Resummed Renormalized Theory at High Temperature

We reinvestigate the interesting phenomenon of symmetry nonrestoration at high temperature in the multifield O(N_1) X O(N_2) model. We apply modified self-consistent resummation (MSCR) in order to obtain the scalar dressed masses and find in what circumstances a resummed multifield theory which has symmetry (non)restoration can be renormalized. It is shown that, aside from the consistency of the MSCR method, the basic ingredient that guarantees the renormalization of a multifield model within a resummation approach is the T^2 mass behavior of field theory at high temperature.Comment: 14 pages, 1 ps figure, revtex, Phys. Rev. D versio

Crescimento do arroz irrigado influenciado pelo manejo de nitrogênio baseado no uso do clorofilômetro.

O objetivo desse estudo foi avaliar a influência do manejo do N baseado no uso do clorofilômetro no crescimento do arroz irrigado, visto que uma das maiores dificuldades é a sincronização da época de adubação com a época de maior demanda pela planta

Uso do clorofilômetro como indicador da necessidade de adubação nitrogenada em cobertura em arroz irrigado.

O objetivo desse estudo foi determinar a resposta do arroz irrigado a doses de N e avaliar a influência do manejo desse nutriente baseado no uso do clorofilômetro no desempenho da cultivar BRS Tropical

Morfometría de la apertura piriforme y morfología de los huesos nasales en la población brasileña por la radiografía postero-anterior de Caldwell

CAPES - COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL E NÍVEL SUPERIORCNPQ - CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICOPiriform aperture and nasal bone contribute to the formation of the nose. Its morphology varies according to ethnic group and gender. The piriform apertures and nasal bones of 97 individuals were examined radiographically through Caldwell radiographic technique and the types of nasal bones were classified according to Hwang et al. (2005). The width, height and area of piriform aperture were measured to demonstrate the difference according to gender. Statistical analysis was performed from the Student t test and analysis of variance (ANOVA). The most frequent type of nasal bone was A, and D was the most uncommon in both genders. In the Student t test significant differences between genders, height, width and area of the piriform aperture were obtained and were larger in males when compared to females. The dimensions of the piriform aperture were higher in males when compared to females, and therefore may be used as parameter for the distinction of gender in Brazilian population. The type A of nasal bone was the most frequent in the Brazilian population, contributing to ethnic differentiation in human identification292393398CAPES - COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL E NÍVEL SUPERIORCNPQ - CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICOCAPES - COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL E NÍVEL SUPERIORCNPQ - CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICOsem informaçãosem informaçãoLa apertura piriforme y el hueso nasal contribuyen a la formación de la nariz. Su morfología varía de acuerdo a los grupos étnicos y al sexo. Este estudio evaluó la morfología de la apertura piriforme y el hueso nasal y su relación con el sexo. Las aperturas piriformes y los huesos nasales de 97 personas fueron examinados radiográficamente mediante la técnica radiográfica de Caldwell, y los tipos de huesos nasales se clasificaron de acuerdo con Hwang et al. (2005). Se midió el ancho, la altura y el área de la apertura piriforme para demostrar las diferencias por sexo. El análisis estadístico se realizó a partir de la prueba t de Student y análisis de varianza (ANOVA). El tipo más frecuente de hueso nasal fue la A, y la D fue la menos común, en ambos sexos. En la prueba t de Student se obtuvo diferencias significativas entre los sexos, altura, ancho y área de la apertura piriforme, las que fueron mayores en hombres en comparación a las mujeres. Las dimensiones de la apertura piriforme fueron mayores en los hombres que en las mujeres, por lo que se puede utilizar como parámetro para la distinción de sexo en la población brasileña. En la población brasileña el tipo A de hueso nasal fue el más frecuente, lo que contribuye para la diferenciación étnica en la identificación human

Desempenho do arroz irrigado afetado pelo manejo de nitrogênio monitorado com o uso do clorofilômetro e fungicidas.

Objetivou-se com este estudo determinar o desempenho do arroz irrigado influenciado pelo manejo de N baseado no uso do clorofilômetro e aplicação de fungicidas em várzea tropical

Aflatoxins: contamination, analysis and control.

Projeto: 11.11.11.111

Designing all-graphene nanojunctions by covalent functionalization

We investigated theoretically the effect of covalent edge functionalization, with organic functional groups, on the electronic properties of graphene nanostructures and nano-junctions. Our analysis shows that functionalization can be designed to tune electron affinities and ionization potentials of graphene flakes, and to control the energy alignment of frontier orbitals in nanometer-wide graphene junctions. The stability of the proposed mechanism is discussed with respect to the functional groups, their number as well as the width of graphene nanostructures. The results of our work indicate that different level alignments can be obtained and engineered in order to realize stable all-graphene nanodevices