13 research outputs found

    Progresso científico em pequenos ruminantes na primeira década do século XXI Scientific progress in small ruminants in the first decade of 21st century

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    O interesse pelos pequenos ruminantes aumentou nos últimos anos sob os aspectos produtivo e científico. No Brasil, caprinos e ovinos são os que despertam maior interesse econômico. Assim, este trabalho foi conduzido com o objetivo de discutir o progresso científico com caprinos e ovinos nos últimos dez anos. Foram pesquisadas várias bases de dados, entre elas as do Institute for Scientific Information (ISI), da Scientific Electronic Library Online - SciELO, da Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES, do Instituto Brasileiro de Geografia e Estatística - IBGE e da Food and Agriculture Organization of the United Nations - FAO. Na última década, os pequenos ruminantes têm merecido especial atenção dos pesquisadores, o que pode ser comprovado pelo aumento de 41% nas publicações mundiais envolvendo estas espécies, o que foi acompanhado por aumento ainda mais expressivo, 219%, em âmbito nacional. A evolução também foi observada sob os aspectos metodológicos dos projetos, ressaltando a abordagem multidisciplinar nas pesquisas mais atuais. Nos últimos dez anos, houve crescimento do aporte de recursos para editais temáticos demandados pela sociedade e pela cadeia da carne e do leite, além da preocupação com qualidade, competitividade e sustentabilidade.<br>Worldwide interest in small ruminants has increased in recent years in both, the productive and scientific aspects. In Brazil, the same trend has been observed, however, among all small ruminants, goats and sheep can be highlighted. Thus, this review aimed to discuss scientific progress in goat and sheep in the last decade. Data were collected in different databases, such as Institute for Scientific Information (ISI), Scientific Electronic Library Online - SciELO, Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES, Instituto Brasileiro de Geografia e Estatística - IBGE and Food and Agriculture Organization of the United Nations - FAO. In the last decade, goat and sheep have received particular attention from researchers, which can be proved by the number of publications involving these species, which increased 41% worldwide, and nationwide increase was even more expressive, 219%. Methodological aspects applied in researches have also improved, emphasizing multidisciplinary approach. Much of the scientific progress was due to increasing financial support through thematic calls demanded by society and by the productive chain of meat and milk. In these calls is noticeable the concern with product quality, competitiveness and sustainability

    Crop Rotation and Management Effect on Fusarium spp. Populations

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    Fusarium spp. are common fungal pathogens that infect a number of field and vegetable crops. Crop rotation, genetic resistance, and fungicides are the primary methods used for managing these pathogens; however, there is a lack of information regarding the interactions between these management strategies and how they impact Fusarium spp. population dynamics. Therefore, the objective of this research was to quantify the effect of crop rotation and management (i.e., variety selection and fungicide use) on F. graminearum, F. oxysporum, and F. virguliforme populations in the soil using real-time quantitative polymerase chain reaction (qPCR). Soil samples were collected in 2011 and 2012 from a long-term corn (Zea mays L.)–soybean [Glycine max (L.) Merr.]–wheat (Triticum aestivum L.) rotation study near Arlington, WI, and populations for each species (spores g−1 of soil) were quantified from extracted soil DNA. Fusarium oxysporum was the most prevalent Fusarium sp. found. Crop rotation and management did not impact F. oxysporum populations nor F. virguliforme presence. A crop rotation by fungicide interaction was found for F. graminearum (P < 0.001), but this interaction was primarily affected by crop rotation. As expected, F. graminearum was found more often in plots with wheat as part of the rotation. This study found few interactions among crop rotation, variety selection, and fungicide use for controlling populations of three Fusarium spp. in the soil, and significant interactions or individual control methods were dependent on the species being examined.US Wheat and Barley Scab Initiative/[]/USWBSI/Estados UnidosNational Institute of Food and Agriculture/[]/NIFA/Estados UnidosWisconsin Institute for Sustainable Agriculture/[]//Estados UnidosUCR::Vicerrectoría de Docencia::Ciencias Agroalimentarias::Facultad de Ciencias Agroalimentarias::Escuela de Agronomí

    Nachhaltige Finanz- und Investitionspolitik der Bundesländer*

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    In Germany the sustainability of fiscal policy is determined to a substantial part by the federal states (Bundeslaender). Their portion of the public debt amounts to nearly 40 percent. Econometric tests show that the fiscal policy of the federal states taken collectively is not sustainable. The requirement for fiscal sustainability is fulfilled only by two western Laender, Hesse and North-Rhine Westphalia, and one eastern Land (Saxony). Furthermore, it is shown that the constitutional "golden rule" stipulating that borrowing should not exceed investment expenditures does not ensure the solvency of the states. This holds for theoretical reasons but also because there is a lack of clarity and enforceability. Finally, it is argued that the commitment of subnational governments to sustainable public finances could be strengthened by invigorating state-level tax and expenditure autonomy. Copyright 2007 die Autoren Journal compilation 2007, Verein für Socialpolitik und Blackwell Publishing Ltd.

    Test of CP invariance in vector-boson fusion production of the Higgs boson in the H → ττ channel in proton-proton collisions at √<i>s</i>=13TeV with the ATLAS detector

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    A test of CP invariance in Higgs boson production via vector-boson fusion is performed in the HττH\rightarrow\tau\tau decay channel. This test uses the Optimal Observable method and is carried out using 36.1 fb1\mathrm{fb}^{-1} of s\sqrt{s} = 13 TeV proton-proton collision data collected by the ATLAS experiment at the LHC. Contributions from CP-violating interactions between the Higgs boson and electroweak gauge bosons are described by an effective field theory, in which the parameter d~\tilde{d} governs the strength of CP violation. No sign of CP violation is observed in the distributions of the Optimal Observable, and d~\tilde{d} is constrained to the interval [0.090,0.035][-0.090, 0.035] at the 68% confidence level (CL), compared to an expected interval of d~[0.035,0.033]\tilde{d} \in [-0.035,0.033] based upon the Standard Model prediction. No constraints can be set on d~\tilde{d} at 95% CL, while an expected 95% CL interval of d~[0.21,0.15]\tilde{d} \in [-0.21,0.15] for the Standard Model hypothesis was expected

    Measurement of azimuthal anisotropy of muons from charm and bottom hadrons in Pb+Pb collisions at √sNN=5.02 TeV with the ATLAS detector

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    Azimuthal anisotropies of muons from charm and bottom hadron decays are measured in Pb+Pb collisions at √sNN=5.02 TeV. The data were collected with the ATLAS detector at the Large Hadron Collider in 2015 and 2018 with integrated luminosities of  0.5 nb-1 and 1.4 nb-1, respectively. The kinematic selection for heavy-flavor muons requires transverse momentum 4<pT <30GeV and pseudorapidity ¦η¦ <2.0. The dominant sources of muons in this range are semi-leptonic decays of charm and bottom hadrons. These heavy-flavor muons are separated from light-hadron decay muons and punch-through hadrons using the momentum imbalance between the measurements in the tracking detector and in the muon spectrometers. Azimuthal anisotropies, quantified by flow coefficients, are measured via the event-plane method for inclusive heavy-flavor muons as a function of the muon pT  and in intervals of Pb+Pb collision centrality. Heavy-flavor muons are separated into contributions from charm and bottom hadron decays using the muon transverse impact parameter with respect to the event primary vertex. Non-zero elliptic (ν2) and triangular  (ν3) flow coefficients are extracted for charm and bottom muons, with the charm muon coefficients larger than those for bottom muons for all Pb+Pb collision centralities. The results indicate substantial modification to the charm and bottom quark angular distributions through interactions in the quark-gluon plasma produced in these Pb+Pb collisions, with smaller modifications for the bottom quarks as expected theoretically due to their larger mass
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