936 research outputs found

    Contribuição da Metodologia Multicritério de Apoio à Decisão no Método do Fluxo de Caixa Descontado Usado para Avaliar Empresas de Pequeno Porte

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    Na busca de uma avaliação em negócios mais ampla, se fez necessário incorporar no fluxo de caixa descontado variáveis de natureza qualitativa e subjetiva. Portanto, o objetivo desse artigo é contribuir na aplicação do método do fluxo de caixa descontado, utilizando a metodologia multicritério de apoio à decisão. Para atingir esse objetivo foi realizado um estudo descritivo de natureza exploratória aplicado a um multicaso. A intervenção foi em empresas de pequeno porte do ramo químico, farmacêutico e de turismo. Como resultado, o avaliador ajustou o preço do negócio levando em conta a resultante da mixagem entre as duas metodologias.Metodologia Multicritério; Fluxo de caixa descontado; Balanço inventariado; Empresas de pequeno porte

    Avaliação de Empresas de Pequeno Porte no Brasil através da Metodologia Construtivista de Apoio à Decisão MCDA-C

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    Esta pesquisa apresenta um método que, sob a ótica construtivista, permite construir modelos para avaliar empresas de pequeno porte no Brasil, com base nas percepções e juízos de valor do investidor. Para tanto, este trabalho se propôs a utilizar uma metodologia multicritério de apoio a decisão construtivista (MCDA-Construtivista), que permitiu operacionalizar o método aqui proposto, a fim de melhor refletir o valor das empresas como negócio. Sob o ponto de vista das escolhas metodológicas de pesquisa, o autor procurou se posicionar diante das diversas correntes teóricas da área de avaliação de empresas; em especial a visão construtivista no processo de apoio a decisão onde se assume a idéia de que resolver um problema é um processo evolutivo de aprendizado. O modelo proposto identifica as variáveis consideradas relevantes pelo decisor em um processo de avaliação de empresa . Utiliza-se de um estudo de caso em uma empresa de pequeno porte (Alfa Tecnoquímica Ltda) para exemplificar a aplicação do modelo construtivista proposto. Concluiu-se que o mais importante do que propor uma metodologia para avaliação é o reconhecimento de que com a abordagem construtivista os envolvidos no processo interagem e aprendem sobre o problema e o que realmente importa são os aspectos julgados relevantes pelo investidor.Avaliação de empresas, Firms' evaluation, MCDS-C

    O programa de formação permanente de professores de engenharia e o resultado das avaliações docentes institucionais / The permanent training program of engineering teachers and the result of institutional teaching evaluations

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     O desenvolvimento econômico e tecnológico impulsiona mudanças na forma de organização da sociedade e, em especial na educação superior, implica na compreensão de novas formas de aprender e ensinar. Neste sentido, programas de formação docente tornam-se cada vez mais importantes para o desenvolvimento de um docente que possua formação didático-pedagógica, além do domínio de conteúdos específicos, para impulsionar a formação de profissionais críticos, responsáveis e capazes de solucionar problemas próprios da sociedade contemporânea. Assim, este trabalho apresenta uma pesquisa sobre a realização da Semana de Preparação Pedagógica na Universidade Presbiteriana Mackenzie, enquanto formação permanente de docentes em 13 edições e analisa os resultados da avaliação docente institucional, aplicados pela CPA, no mesmo período para os professores da Escola de Engenharia. As análises apontam para melhorias nos índices de avaliação docente reconhecido pelos discentes por meio do instrumento.

    Certificação Qualiverde: Análise do Desenvolvimento, Aplicação e Situação Atual

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    This paper addresses Qualiverde’s, program from the municipal government of Rio de Janeiro to encourage green buildings. Although the qualification is being applied due enforced by the law, its fiscal and building benefits await city council approval. Moreover, Qualiverde is not fully applied. In addition, the information about the certification is very scarce, with few publications and studies available. They have few information, beyond the existing in the text of Qualiverde's legislation. Researching the theme was the main purpose of this article. Information was obtained through interviews with subject specialists and bibliographic reviews. Information on the process of developing the seal, its main objectives and datas on its current situation, such as numbers of projects already qualified and in the process of qualification, are presented. The legality of the draft laws currently being discussed in the town hall is discussed.El artículo trata de lacertificación Qualiverde, programa del Ayuntamiento de Río de Janeiro en incentivo a lasconstrucciones verdes. Aunque la cualificación esté siendo aplicada, sus provechos, fiscales y EDILÍCIOS, esperan por aprobación en la Cámara Municiapal y por eso no son aplicables. Además, las informaciones acerca del sello son demasiado escasas, hay pocas publicaciones y studios disponibles con datos distintos de los obtenidos en el texto de la legislación. La ampliación de la cantidad de ellos es el principal objetivo de este artículo. La investigación se ha dado a través de entrevistas con expertos en el tema y de revisions bibliograficas. Es presentado el proceso de elaboración del sello, sus principales objetivos y datos acerca de su situación actual, así como los numeros de emprendimientos calificados y en proceso de calificación. Es discutida, todavía, la legalidad de los proyectos y leyes entramitación en la Cámara Municipal.O presente artigo trata sobre a certificação Qualiverde, programa da Prefeitura do Rio de Janeiro para incentivo às construções verdes. Embora a qualificação esteja sendo aplicada, seus benefícios, fiscais e edilícios, aguardam aprovação na Câmara Municipal e, por isso, não são aplicados. Além disto, as informações sobre o selo são bastante escassas, havendo poucas publicações e estudos disponíveis com dados diferentes das obtidas no texto da legislação, sendo a ampliação da quantidade destes o objetivo desse artigo. A pesquisa se deu por meio de entrevistas com especialistas no assunto e de revisões bibliográficas. É apresentado o processo de elaboração do selo, os seus principais objetivos e dados sobre a sua situação atual, como números de empreendimentos já qualificados e em processo de qualificação. É discutida, ainda, a legalidade dos projetos de leis em tramitação na Câmara Municipal

    Photography-based taxonomy is inadequate, unnecessary, and potentially harmful for biological sciences

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    The question whether taxonomic descriptions naming new animal species without type specimen(s) deposited in collections should be accepted for publication by scientific journals and allowed by the Code has already been discussed in Zootaxa (Dubois & Nemésio 2007; Donegan 2008, 2009; Nemésio 2009a–b; Dubois 2009; Gentile & Snell 2009; Minelli 2009; Cianferoni & Bartolozzi 2016; Amorim et al. 2016). This question was again raised in a letter supported by 35 signatories published in the journal Nature (Pape et al. 2016) on 15 September 2016. On 25 September 2016, the following rebuttal (strictly limited to 300 words as per the editorial rules of Nature) was submitted to Nature, which on 18 October 2016 refused to publish it. As we think this problem is a very important one for zoological taxonomy, this text is published here exactly as submitted to Nature, followed by the list of the 493 taxonomists and collection-based researchers who signed it in the short time span from 20 September to 6 October 2016

    Les droits disciplinaires des fonctions publiques : « unification », « harmonisation » ou « distanciation ». A propos de la loi du 26 avril 2016 relative à la déontologie et aux droits et obligations des fonctionnaires

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    The production of tt‾ , W+bb‾ and W+cc‾ is studied in the forward region of proton–proton collisions collected at a centre-of-mass energy of 8 TeV by the LHCb experiment, corresponding to an integrated luminosity of 1.98±0.02 fb−1 . The W bosons are reconstructed in the decays W→ℓν , where ℓ denotes muon or electron, while the b and c quarks are reconstructed as jets. All measured cross-sections are in agreement with next-to-leading-order Standard Model predictions.The production of ttt\overline{t}, W+bbW+b\overline{b} and W+ccW+c\overline{c} is studied in the forward region of proton-proton collisions collected at a centre-of-mass energy of 8 TeV by the LHCb experiment, corresponding to an integrated luminosity of 1.98 ±\pm 0.02 \mbox{fb}^{-1}. The WW bosons are reconstructed in the decays WνW\rightarrow\ell\nu, where \ell denotes muon or electron, while the bb and cc quarks are reconstructed as jets. All measured cross-sections are in agreement with next-to-leading-order Standard Model predictions

    Multidifferential study of identified charged hadron distributions in ZZ-tagged jets in proton-proton collisions at s=\sqrt{s}=13 TeV

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    Jet fragmentation functions are measured for the first time in proton-proton collisions for charged pions, kaons, and protons within jets recoiling against a ZZ boson. The charged-hadron distributions are studied longitudinally and transversely to the jet direction for jets with transverse momentum 20 <pT<100< p_{\textrm{T}} < 100 GeV and in the pseudorapidity range 2.5<η<42.5 < \eta < 4. The data sample was collected with the LHCb experiment at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 1.64 fb1^{-1}. Triple differential distributions as a function of the hadron longitudinal momentum fraction, hadron transverse momentum, and jet transverse momentum are also measured for the first time. This helps constrain transverse-momentum-dependent fragmentation functions. Differences in the shapes and magnitudes of the measured distributions for the different hadron species provide insights into the hadronization process for jets predominantly initiated by light quarks.Comment: All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-013.html (LHCb public pages

    Physics case for an LHCb Upgrade II - Opportunities in flavour physics, and beyond, in the HL-LHC era

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    The LHCb Upgrade II will fully exploit the flavour-physics opportunities of the HL-LHC, and study additional physics topics that take advantage of the forward acceptance of the LHCb spectrometer. The LHCb Upgrade I will begin operation in 2020. Consolidation will occur, and modest enhancements of the Upgrade I detector will be installed, in Long Shutdown 3 of the LHC (2025) and these are discussed here. The main Upgrade II detector will be installed in long shutdown 4 of the LHC (2030) and will build on the strengths of the current LHCb experiment and the Upgrade I. It will operate at a luminosity up to 2×1034 cm−2s−1, ten times that of the Upgrade I detector. New detector components will improve the intrinsic performance of the experiment in certain key areas. An Expression Of Interest proposing Upgrade II was submitted in February 2017. The physics case for the Upgrade II is presented here in more depth. CP-violating phases will be measured with precisions unattainable at any other envisaged facility. The experiment will probe b → sl+l−and b → dl+l− transitions in both muon and electron decays in modes not accessible at Upgrade I. Minimal flavour violation will be tested with a precision measurement of the ratio of B(B0 → μ+μ−)/B(Bs → μ+μ−). Probing charm CP violation at the 10−5 level may result in its long sought discovery. Major advances in hadron spectroscopy will be possible, which will be powerful probes of low energy QCD. Upgrade II potentially will have the highest sensitivity of all the LHC experiments on the Higgs to charm-quark couplings. Generically, the new physics mass scale probed, for fixed couplings, will almost double compared with the pre-HL-LHC era; this extended reach for flavour physics is similar to that which would be achieved by the HE-LHC proposal for the energy frontier

    Study of the BΛc+ΛˉcKB^{-} \to \Lambda_{c}^{+} \bar{\Lambda}_{c}^{-} K^{-} decay

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    The decay BΛc+ΛˉcKB^{-} \to \Lambda_{c}^{+} \bar{\Lambda}_{c}^{-} K^{-} is studied in proton-proton collisions at a center-of-mass energy of s=13\sqrt{s}=13 TeV using data corresponding to an integrated luminosity of 5 fb1\mathrm{fb}^{-1} collected by the LHCb experiment. In the Λc+K\Lambda_{c}^+ K^{-} system, the Ξc(2930)0\Xi_{c}(2930)^{0} state observed at the BaBar and Belle experiments is resolved into two narrower states, Ξc(2923)0\Xi_{c}(2923)^{0} and Ξc(2939)0\Xi_{c}(2939)^{0}, whose masses and widths are measured to be m(Ξc(2923)0)=2924.5±0.4±1.1MeV,m(Ξc(2939)0)=2938.5±0.9±2.3MeV,Γ(Ξc(2923)0)=0004.8±0.9±1.5MeV,Γ(Ξc(2939)0)=0011.0±1.9±7.5MeV, m(\Xi_{c}(2923)^{0}) = 2924.5 \pm 0.4 \pm 1.1 \,\mathrm{MeV}, \\ m(\Xi_{c}(2939)^{0}) = 2938.5 \pm 0.9 \pm 2.3 \,\mathrm{MeV}, \\ \Gamma(\Xi_{c}(2923)^{0}) = \phantom{000}4.8 \pm 0.9 \pm 1.5 \,\mathrm{MeV},\\ \Gamma(\Xi_{c}(2939)^{0}) = \phantom{00}11.0 \pm 1.9 \pm 7.5 \,\mathrm{MeV}, where the first uncertainties are statistical and the second systematic. The results are consistent with a previous LHCb measurement using a prompt Λc+K\Lambda_{c}^{+} K^{-} sample. Evidence of a new Ξc(2880)0\Xi_{c}(2880)^{0} state is found with a local significance of 3.8σ3.8\,\sigma, whose mass and width are measured to be 2881.8±3.1±8.5MeV2881.8 \pm 3.1 \pm 8.5\,\mathrm{MeV} and 12.4±5.3±5.8MeV12.4 \pm 5.3 \pm 5.8 \,\mathrm{MeV}, respectively. In addition, evidence of a new decay mode Ξc(2790)0Λc+K\Xi_{c}(2790)^{0} \to \Lambda_{c}^{+} K^{-} is found with a significance of 3.7σ3.7\,\sigma. The relative branching fraction of BΛc+ΛˉcKB^{-} \to \Lambda_{c}^{+} \bar{\Lambda}_{c}^{-} K^{-} with respect to the BD+DKB^{-} \to D^{+} D^{-} K^{-} decay is measured to be 2.36±0.11±0.22±0.252.36 \pm 0.11 \pm 0.22 \pm 0.25, where the first uncertainty is statistical, the second systematic and the third originates from the branching fractions of charm hadron decays.Comment: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-028.html (LHCb public pages

    Measurement of the ratios of branching fractions R(D)\mathcal{R}(D^{*}) and R(D0)\mathcal{R}(D^{0})

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    The ratios of branching fractions R(D)B(BˉDτνˉτ)/B(BˉDμνˉμ)\mathcal{R}(D^{*})\equiv\mathcal{B}(\bar{B}\to D^{*}\tau^{-}\bar{\nu}_{\tau})/\mathcal{B}(\bar{B}\to D^{*}\mu^{-}\bar{\nu}_{\mu}) and R(D0)B(BD0τνˉτ)/B(BD0μνˉμ)\mathcal{R}(D^{0})\equiv\mathcal{B}(B^{-}\to D^{0}\tau^{-}\bar{\nu}_{\tau})/\mathcal{B}(B^{-}\to D^{0}\mu^{-}\bar{\nu}_{\mu}) are measured, assuming isospin symmetry, using a sample of proton-proton collision data corresponding to 3.0 fb1{ }^{-1} of integrated luminosity recorded by the LHCb experiment during 2011 and 2012. The tau lepton is identified in the decay mode τμντνˉμ\tau^{-}\to\mu^{-}\nu_{\tau}\bar{\nu}_{\mu}. The measured values are R(D)=0.281±0.018±0.024\mathcal{R}(D^{*})=0.281\pm0.018\pm0.024 and R(D0)=0.441±0.060±0.066\mathcal{R}(D^{0})=0.441\pm0.060\pm0.066, where the first uncertainty is statistical and the second is systematic. The correlation between these measurements is ρ=0.43\rho=-0.43. Results are consistent with the current average of these quantities and are at a combined 1.9 standard deviations from the predictions based on lepton flavor universality in the Standard Model.Comment: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-039.html (LHCb public pages
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