Bottom production in Photon and Pomeron -- induced interactions at the LHC

In this paper we present a detailed comparison of the bottom production in gluon -- gluon, photon -- gluon, photon -- photon, pomeron -- gluon, pomeron -- pomeron and pomeron -- photon interactions at the LHC. The transverse momentum, pseudo -- rapidity and $\xi$ dependencies of the cross sections are calculated at LHC energy using the Forward Physics Monte Carlo (FPMC), which allows to obtain realistic predictions for the bottom production with one or two leading intact protons. Moreover, predictions for the the kinematical range probed by the LHCb Collaboration are also presented. Our results indicate that the analysis of the single diffractive events is feasible using the Run I LHCb data.Comment: 8 pages, 3 figures, 1 table. Version published in Physical Review

Moringa oleifera: uma planta de uso múltiplo.

Origem; Descrição botânica e classificaçã da moringa; Principais espécies; Ecologia; Distribuição geográfica; Cultivo; Usus; Doenças e pragas; Melhoramento; Potencial econômico, ambiental e benefícios sociais da Moringa Oleifera.bitstream/item/44719/1/CPATC-DOCUMENTOS-9-MORINGA-OLEIFERA-UMA-PLANTA-DE-USO-MULTIPLO-FL-13127A.pd

Guia prático para identificação de algumas plantas tóxicas em jardins.

Introdução; Alamanda amarela; Flamboiazinho; Lantana; Costela-de-adao; Espirradeira; Aroeira manasa, aroeira branca; Chapeu-de-napoleao; Comigo-ninguem-pode.bitstream/item/82959/1/CPATC-DOC.-16-00.pd

Production lot sizing and scheduling with non-triangular sequence-dependent setup times

[NB some mathematical symbols in this abstract may not be correctly reproduced - please check the full text.] This article considers a production lot sizing and scheduling problem with sequence dependent setup times that are not triangular. Consider, for example, a product p that contaminates some other product r unless either a decontamination occurs as part of a substantial setup time stpr or there is a third product q that can absorb p’s contamination. When setup times are triangular then stpr ≤ stpq + stqr and there is always an optimal lot sequence with at most one lot (AM1L) per product per period. However, product q’s ability to absorb p’s contamination presents a shortcut opportunity and could result in shorter non-triangular setup times such that stpr > stpq +stqr. This implies that it can sometimes be optimal for a shortcut product such as q to be produced in more than one lot within the same period, breaking the AM1L assumption in much research. This article formulates and explains a new optimal model that not only permits multiple lots (ML) per product per period, but also prohibits subtours using a polynomial number of constraints rather than an exponential number. Computational tests demonstrate the effectiveness of the ML model, even in the presence of just one decontaminating shortcut product, and its fast speed of solution compared to the equivalent AM1L model

Photon and Pomeron -- induced production of Dijets in pppp, pApA and AAAA collisions

In this paper we present a detailed comparison of the dijet production by photon -- photon, photon -- pomeron and pomeron -- pomeron interactions in $pp$, $pA$ and ${\rm AA}$ collisions at the LHC energy. The transverse momentum, pseudo -- rapidity and angular dependencies of the cross sections are calculated at LHC energy using the Forward Physics Monte Carlo (FPMC), which allows to obtain realistic predictions for the dijet production with two leading intact hadrons. We obtain that \gamma \pom channel is dominant at forward rapidities in $pp$ collisions and in the full kinematical range in the nuclear collisions of heavy nuclei. Our results indicate that the analysis of dijet production at the LHC can be useful to test the Resolved Pomeron model as well as to constrain the magnitude of the absorption effects.Comment: 11 pages, 6 figures, 1 table. Improved and enlarged version published in European Physical Journal

Primeira contribuição dos estudos de sustentabilidade dos sistemas de produção de mandioca (Maniot Esculenta Cratz) pela ferramenta "Análise Emergética".

Em julho de 2002, foi lançada a Agenda 21 Brasileira, cujo principal objetivo é o desenvolvimento sustentável propondo o equilíbrio entre o crescimento econômico, a equidade social e a preservação ambiental no planejamento do desenvolvimento do país (BRASIL, 2002). No que se refere à agricultura, visa proporcionar a transformação dos atuais em sistemas de produção agrícola mais sustentáveis. Para programar as ações propostas pela Agenda 21 de forma eficaz, é necessário utilizar ferramentas capazes de avaliar a sustentabilidade dos sistemas de produção e consumo de forma mais objetiva e quantitativa (CAVALETT, 2008). Uma das ferramentas utilizadas e que conta com a aceitação da comunidade científica mundial é denominada "Análise Emergética" (ODUM, 1996), e é considerada entre as mais completas. Segundo Cavalett (2008), ela contabiliza valores das energias naturais incorporadas aos produtos, processos e serviços, geralmente não contabilizados na economia clássica e na análise de energia incorporada. Considera-se, na análise emergética, todos os insumos usados para produzir um certo produto ou serviço, incluindo as contribuições da natureza (chuva, água de poços, nascentes, solo, sedimentos e biodiversidade) e os fornecimentos da economia (materiais, maquinaria, combustível, mão-de-obra, serviços e pagamentos em moeda) e, em alguns casos, as externalidades negativas (erosão do solo, perda da biodiversidade, tratamentos médicos das pessoas e êxodo rural). Até o momento não se dispõe de estudos de sustentabilidade envolvendo a cultura da mandioca que, embora seu apelo social, possui ainda alguns graves gargalos na sua dimensão ambiental, principalmente no que se refere às perdas de solo associadas aos sistemas de produção. O presente trabalho se propõe a avaliar sustentabilidade de um sistema usual de produção de mandioca da região oeste do Paraná, e sua relação com outros sistemas de produção objetos de outros estudos

Origin of magnetism and quasiparticles properties in Cr-doped TiO2_2

Combining LSDA+$U$ and an analysis of superexchange interactions beyond DFT, we describe the magnetic ground states in rutile and anatase Cr-doped TiO$_2$. In parallel, we correct our LSDA+$U$ ground state through GW corrections ($GW$@LSDA+$U$) that reproduce the position of impurity states and the band gaps in satisfying agreement with experiments. Because of the different topological coordinations of Cr-Cr bonds in the ground states of rutile and anatase, superexchange interactions induce either ferromagnetic or antiferromagnetic couplings of Cr ions. In Cr-doped anatase, this interaction leads to a new mechanism which stabilizes a ferromagnetic ground state, in keeping with experimental evidence, without the need to invoke F-center exchange.Comment: 5<pages, 4 figure

Squeezing generation and revivals in a cavity-ion system in contact with a reservoir

We consider a system consisting of a single two-level ion in a harmonic trap, which is localized inside a non-ideal optical cavity at zero temperature and subjected to the action of two external lasers. We are able to obtain an analytical solution for the total density operator of the system and show that squeezing in the motion of the ion and in the cavity field is generated. We also show that complete revivals of the states of the motion of the ion and of the cavity field occur periodically.Comment: 9 pages, 3 figure

Efeito da deficiência hídrica e do fotoperíodo no rendimento de grãos da soja semeada na região de Dourados, MS.

bitstream/item/24702/1/COT200489.pdfDocumento on-line

Exploiting flow-based separation techniques for sample handling in wine analysis

Wine is a fermented product consumed in a large scale all over the world that therefore has a large impact both economic and food safety terms. The analytical control of the final product is thus of high importance; it is not a simple task given that the chemical composition of wine is very variable and complex. Consequently, there is always the need for some sample pre-treatment prior to analysis. Flow-based analyses are known for their efficiency in sample manipulation and can be easily coupled to other techniques, such as separation techniques, namely membrane-based or extraction procedures. This possibility is an important step when dealing with complex matrices, such as wine samples. This review presents the state of the art of the methodologies that were developed using flow-based systems coupled to separation devices applied to wine analysis, namely membrane-based, solid, and liquid phase extraction and low pressure chromatography separations.info:eu-repo/semantics/acceptedVersio