Importância da avaliação microbiológica na qualidade e segurança dos alimentos.

Abordagem técnológica. Abordagem metodológica. Relevância econômica, social e ambiental. Referências bibliográficasbitstream/CNPAB-2010/27380/1/doc120.pd

Freqüência de rinite atrofica em suínos de abate no estado de Santa Catarina.

Estrutura nasais em suínos. Lesões características de renite atrofica em suínos. Desvio do septo nasal

Staphylococcus aureus: importância para a saída pública e aspectos epidemiológicos.

Características do staphylococcus aureus. Intoxicação alimentar: aspectos epidemiólogicos.bitstream/CNPAB-2010/27353/1/doc114.pd

On the nature of Lithium-rich giant stars: constraints from Beryllium abundances

We have derived beryllium abundances for 7 Li-rich giant (A(Li) > 1.5) stars and 10 other Li-normal giants, with the aim of investigating the origin of the Lithium in the Li-rich giants. In particular, we test the predictions of the engulfment scenario proposed by Siess & Livio (1999), where the engulfment of a brown dwarf or one or more giant planets would lead to a simultaneous enrichment of 7Li and 9Be. We show that regardless their nature, none of the stars studied in this paper were found to have detectable beryllium. Using simple dilution arguments we show that the engulfment of an external object as the sole source of Li enrichment is ruled out by the Li and Be abundance data. The present results favor the idea that Li has been produced in the interior of the stars by a Cameron-Fowler process and brought up to the surface by an extra mixing mechanism.Comment: Accepted in A&

Hambúrguer: influência da temperatura na concentração microbiana.

Introdução. Efeito da temperatura ambiente sobre o crescimento microbiano. Influência da temperatura na concentração microbiana de hambúrgueres. Referências bibliográficas.bitstream/item/76480/1/doc58-2004.pd

Seminários itinerantes sobre comunicação e agronegócio: contribuição para a melhoria da cobertura jornalística sobre o meio rural no Paraná.

Este artigo aborda os resultados do projeto Seminários Itinerantes sobre Comunicação e Agronegócio (Secoagro), liderado pela Empresa Brasileira de Pesquisa Agropecuária (Embrapa) e pela Associação de Jornalistas do Agronegócio do Paraná (AJAP). Entre 2008 e 2009, foram realizados 19 seminários técnicos e 8 dias de campo sobre as principais cadeias produtivas do Paraná para 1600 jornalistas e estudantes de jornalismo das seis principais regiões-pólo do Estado. O projeto tem o objetivo de contribuir com a formação de profissionais e estudantes de comunicação social, propiciando condições para que aprofundem seu conhecimento sobre as principais cadeias produtivas de suas regiões e produzam matérias jornalísticas críticas e contextualizadas, a fim de contribuir para o incremento da informação publicada pelos veículos de comunicação

The HERMES Solar Atlas and the spectroscopic analysis of the seismic solar analogue KIC3241581

Solar-analog stars provide an excellent opportunity to study the Sun's evolution, i.e. the changes with time in stellar structure, activity, or rotation for solar-like stars. The unparalleled photometric data from the NASA space telescope Kepler allows us to study and characterise solar-like stars through asteroseismology. We aim to spectroscopically investigate the fundamental parameter and chromospheric activity of solar analogues and twins, based on observations obtained with the HERMES spectrograph and combine them with asteroseismology. Therefore, we need to build a solar atlas for the spectrograph, to provide accurate calibrations of the spectroscopically determined abundances of solar and late type stars observed with this instrument and thus perform differential spectral comparisons. We acquire high-resolution and high signal-to-noise spectroscopy to construct three solar reference spectra by observing the reflected light of Vesta and Victoria asteroids and Europa (100<S/N<450) with the \Hermes spectrograph. We then observe the Kepler solar analog KIC3241581 (S/N~170). We constructed three solar spectrum atlases from 385 to 900 nm obtained with the Hermes spectrograph from observations of two bright asteroids and Europa. A comparison between our solar spectra atlas to the Kurucz and HARPS solar spectrum shows an excellent agreement. KIC3241581 was found to be a long-periodic binary system. The fundamental parameter for the stellar primary component are Teff=5689+/-11K, logg=4.385+/-0.005, [Fe/H]=+0.22+/-0.01, being in agreement with the published global seismic values confirming its status of solar analogue. KIC 3241581 is a metal rich solar analogue with a solar-like activity level in a binary system of unknown period. The chromospheric activity level is compatible to the solar magnetic activity.Comment: 12 pages, 8 figures, accepted for publication in A&

On the link between rotation, chromospheric activity and Li abundance in subgiant stars

The connection rotation-CaII emission flux-lithium abundance is analyzed for a sample of bona fide subgiant stars, with evolutionary status determined from HIPPARCOS trigonometric parallax measurements and from the Toulouse-Geneva code.Comment: 9 pages, 8 figure