Estimations for the Single Diffractive production of the Higgs boson at the Tevatron and the LHC

The single diffractive production of the standard model Higgs boson is computed using the diffractive factorization formalism, taking into account a parametrization for the Pomeron structure function provided by the H1 Collaboration. We compute the cross sections at next-to-leading order accuracy for the gluon fusion process, which includes QCD and electroweak corrections. The gap survival probability ($$) is also introduced to account for the rescattering corrections due to spectator particles present in the interaction, and to this end we compare two different models for the survival factor. The diffractive ratios are predicted for proton-proton collisions at the Tevatron and the LHC for the Higgs boson mass of $M_H$ = 120 GeV. Therefore, our results provide updated estimations for the diffractive ratios of the single diffractive production of the Higgs boson in the Tevatron and LHC kinematical regimes.Comment: 20 pages, 6 figures, 3 table

Non Palpable Implanon Rod - Strategies for their Localization and Removal

Overview and Aims: The contraceptive implant is frequently used to provide contraceptive protection over three years. The implant is inserted into the subcutaneous tissue of the upper arm, and should be palpable and easily removed. We evaluated the best imaging strategy for non-palpable implant (Implanon®) localization and removal. Study Design: Retrospective study. Population: A total of 11 women referred to a tertiary care hospital, between October 2009 and January 2012, for localization and removal of their non-palpable implants. Methods: Different localization methods (ultrasound and magnetic resonance imaging) were evaluated for non-palpable rod. Results: Seven of the nonpalpable implants were inserted in a health care center, three in a district hospital and one in a private clinic. In three women, the reasons for requesting removal were the end of the implant validity, two wanted to become pregnant, two had weight gain, one had weight loss, one referred irregular bleeding, one had two implants and one did a hysterectomy. In 81.8% (9) of the women, the implants were identified and localized by ultrasound, and successfully removed. In two patients the implant was not found and therefore not removed. Conclusions: In our study, high resolution ultrasound proved to be a sensitive method in implants localization, being the primary choice for determining the location of nonpalpable implants

Spatial and temporal variations of soil water in an integrated crop-livestock-forestry system.

This study aimed to monitor the spatial and temporal variations of water tension in the soil in an iCLF in the Cerrado

Uso do nitrogênio na agricultura e suas implicações na emissão do gás de efeito estufa óxido nitroso (N2O).

Uso de fertilizantes nitrogenados no Brasil e no mundo. Fontes de nitrogênio. Fertilizantes sintéticos. Fixação biológica de nitrogênio. Adubação orgânica. O ciclo do nitrogênio. Nitrificação. Desnitrificação. O efeito estufa e o aquecimento global. O Brasil no panorama das mudanças climáticas globais. O Papel do óxido nitroso. Emissões de N2O registradas no Brasil. Mitigação. Considerações finais.bitstream/CNPAF-2010/29830/1/doc-249.pd

Influência do resíduo líquido do sisal (Agave sisalana, Perrine) sobre a alimentação larvar e motilidade de adultos, in vitro, de nematóides gastrintestinais de pequenos ruminantes.

A utilização do sisal na obtenção de produtos com ação antiparasitária é uma alternativa de diversificação da exploração do setor agropecuário. O objetivo deste estudo foi avaliar a ação do resíduo líquido de Agave sisalana sobre o desenvolvimento, in vitro, de nematóides gastrintestinais de pequenos ruminantes. O resíduo líquido das folhas de A. sisalana obtido pelo processo de desfibramento, foi utilizado nos testes de inibição da alimentação larval (TIAL) e motilidade de adultos (TMA) de nematóides gastrintestinais (NGI) de ovinos e caprinos, respectivamente. A inibição do desenvolvimento e da alimentação de larvas foi de 100%, após a exposição, igualou superior, a 0,12 mg/mL do resíduo. No teste de motilidade de adultos a inibição foi de 100% para concentração de 75 mg/mL, com 24h, e para 37 mg/mL e 18 mg/mL, com 48h.Os testes in vitro utilizados para avaliar a ação da seiva da folha da A. sisalana sobre larvas e adultos de NGI demonstraram o seu potencial antiparasitário

Influência do resíduo líquido do sisal (Agave sisalana, Perrine) sobre a eclosão de ovos e o desenvolvimento larvar, in vitre, de nematóides gastrintestinais de ovinos.

A utilização do sisal na obtenção de produtos com ação antiparasitária é uma alternativa de diversificação da exploração do setor agropecuário. O objetivo deste estudo foi avaliar a ação do resíduo líquido de Agave sisalana sobre o desenvolvimento, in vitro, de nematóides gastrintestinais de ovinos. O resíduo líquido das folhas de A. sisalana obtido pelo processo de desfibramento, foi utilizado nos testes de eclosão de ovos (TEO) e desenvolvimento larvar (TDL) de nematóides gastrintestinais (NGI) de ovinos. Houve inibição da eclosão de ovos e o percentual de inibição aumentou significativamente (p<0,05) com o aumento da concentração do resíduo do sisal. As CE50 e CE95 para inibição da eclosão de ovos foram, respectivamente, 6,78 e 23,06mg/mL. A inibição do desenvolvimento de larvas no TDL variou entre zero e 100%. Os testes in vitro utilizados para avaliar a ação do resíduo líquido da folha da A. sisalana sobre ovos e larvas de NGI demonstram o potencial antiparasitário do sisal

Nitrogen fluxes from irrigated common-bean as affected by mulching and mineral fertilization.

The objective of this work was to measure the fluxes of N2O&#8209;N and NH3&#8209;N throughout the growing season of irrigated common&#8209;bean (Phaseolus vulgaris), as affected by mulching and mineral fertilization. Fluxes of N2O&#8209;N and NH3&#8209;N were evaluated in areas with or without Congo signal grass mulching (Urochloa ruziziensis) or mineral fertilization. Fluxes of N were also measured in a native Cerrado area, which served as reference. Total N2O&#8209;N and NH3&#8209;N emissions were positively related to the increasing concentrations of moisture, ammonium, and nitrate in the crop system, within 0.5 m soil depth. Carbon content in the substrate and microbial biomass within 0.1 m soil depth were favoured by Congo signal grass and related to higher emissions of N2O&#8209;N, regardless of N fertilization. Emission factors (N losses from the applied mineral nitrogen) for N2O&#8209;N (0.01?0.02%) and NH3&#8209;N (0.3?0.6%) were lower than the default value recognized by the Intergovernmental Panel on Climate Change. Mulch of Congo signal grass benefits N2O&#8209;N emission regardless of N fertilization

Integrated crop-livestock-forestry systems as potential carbon sinks.

Mixed farming systems have great potential to combine food production with environmental services, including climate change mitigation and biodiversity preservation. This study contributed to the evaluation of integrated crop-livestock (ICL) and crop-livestock-forestry (ICLF) production systems from the point of view of their potential for carbon (C) sequestration in the soil and in the production system as a whole