Importância e métodos de controle do "moleque" ou broca-do-rizoma-da-bananeira.

É no rizoma que se encontra a principal praga da bananicultura brasileira. Trate-e da especie Cosmopolites sordidus Gemar 1824, conhecida vulgarmente como "moleque", broca-do-rizoma ou broca-da-bananeira; Decricao e ciclo biológico; Danos e importância econômica; Medidas de controle; Utilizacao de mudas livres de infestacao; Utilizacao de iscas atrativas; Variedades resistentes; Controle biologico; Controle quimico; Controle por comportamentobitstream/CNPAT-2010/8608/1/Ci-017.pd

Towards absolute calibration of optical tweezers

Aiming at absolute force calibration of optical tweezers, following a critical review of proposed theoretical models, we present and test the results of MDSA (Mie-Debye-Spherical Aberration) theory, an extension of a previous (MD) model, taking account of spherical aberration at the glass/water interface. This first-principles theory is formulated entirely in terms of experimentally accessible parameters (none adjustable). Careful experimental tests of the MDSA theory, undertaken at two laboratories, with very different setups, are described. A detailed description is given of the procedures employed to measure laser beam waist, local beam power at the transparent microspheres trapped by the tweezers, microsphere radius and the trap transverse stiffness, as a function of radius and height in the (inverted microscope) sample chamber. We find generally very good agreement with MDSA theory predictions, for a wide size range, from the Rayleigh domain to large radii, including the values most often employed in practice, and at different chamber heights, both with objective overfilling and underfilling. The results asymptotically approach geometrical optics in the mean over size intervals, as they should, and this already happens for size parameters not much larger than unity. MDSA predictions for the trapping threshold, position of stiffness peak, stiffness variation with height, multiple equilibrium points and `hopping' effects among them are verified. Remaining discrepancies are ascribed to focus degradation, possibly arising from objective aberrations in the infrared, not yet included in MDSA theory.Comment: 15 pages, 20 figure

Handball coaches' perceptions about the value of working competences according to their coaching background

The purpose of this study was to analyze the value attributed to given working competences, by Portuguese handball coaches according to their coaching background, certification level, coaching experience, and level of education. A sample of 207 handball coaches responded to a questionnaire which included demographic characteristics and a scale focused on perceptions of the level of importance attributed to working competences. Data analysis included an exploratory factorial analysis applying Maximum Likelihood Factoring (MLF) and Oblimin rotation. These factors were submitted to a One-way ANOVA and Tukey's post hoc multiple comparisons to analyse coaches' perceptions according to their coaching background. A six factor solution was found where three major domains of competences were highlighted; the first one related to training and competition (e.g. planning and conducting the training, team administration in competition, annual and multi-annual planning, and coaching methodology); the second one related to social and cultural issues and management (e.g. implementation of youth sport development projects, team leadership and coach education) and the third one related to the cognitive background (meta-cognitive competences). The importance ascribed to some working competences was influenced by their coaching experience and certification level. Highly experienced and qualified coaches perceived competences of everyday practice, social, cultural and management issues related to training and competition as more important than the other coaches. This study suggests the need to consider some working competences, until now not explicitly present in the Portuguese coaching education curriculum which could enable coaches to choose the best way to practice/work in a manner that will foster and support their professional development. Key pointsThree major domains of competences were highlighted by Portuguese handball coaches. The first one related to training and competition, the second one related to social and cultural issues and management and the third one related to the cognitive background.The importance ascribed by Portuguese handball coaches to some working competences was influenced by their coaching experience and certification level, as high experienced coaches and coaches with higher certification levels perceived competences related to training and competition of the everyday practice and social, cultural issues and management as more important.The value attributed by Portuguese handball coaches to working competences did not vary according to the coaches' academic education level.Portuguese handball coaches valued the meta-cognitive competences, the competences to implement sport development project and related to annual and multi-annual planning independently of their coaching background

Novas incidências de insetos em cajueiro no Nordeste do Brasil.

Com o objetivo de se conhecer a importância e distribuição geográfica das pragas do cajueiro, constatou-se que além da ocorrência de insetos e ácaros, já conhecidos para algumas regiões, outras espécies, ainda não citadas como pragas, usam esta anacardiácea como planta hospedeira.bitstream/CNPAT-2010/8839/1/Pa-004.pd

Bioestimulante no feijoeiro cultivado em sucessão à diferentes culturas de cobertura.

Este trabalho teve como objetivo avaliar o efeito de regulador de crescimento visando maior produtividade do feijoeiro irrigado em sucessão à diferentes culturas de cobertura

Identificação taxonômica de três lepidópteros em cajueiro no Brasil.

Este trabalho objetiva relatar a identificacao taxonomica de tres especies de lepidopteros, pragas do cajueiro.bitstream/CNPAT-2010/5372/1/Ct-026.pd

Importância, comportamento e sugestões de manejo da lagarta-saia-justa em cultivo orgânico de cajueiro-anão.

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Ocorrência e controle de alguns artrópodes associados ao abacaxizeiro no distrito irrigado de Jaguaribe-Apodi, Ceará.

Como objetivo de se conhecer as principais pragas do abacaxizeiro na regiao da chapada do Jaguaribe-Apodi, foram conduzidos levantamentos fitossanitarios quinzenais ... os levantamentos das pragas foram feiiotos atraves de visitas a area de cultivo ..bitstream/CNPAT-2010/5413/1/Ct-039.pd