35,617 research outputs found
Blockchain technology and traceability in the wine supply chain industry
No full textIn a global context, marked by the increase in digital transformation in all sectors of society, digitalisation in the wine industry faces various challenges. One of these challenges is ensuring the wine supply chain transparency and security to the more informed consumers and technology users. This study is part of an ongoing research project. It presents a literature review whose objective is to analyse the benefits of using blockchain technology in the wine industry supply chain to tackle these challenges. This technology, combined with other technologies and supported on Internet-of-Things-based interconnected systems, can guarantee protection systems with high security. This research demonstrates how blockchain technology can add value to the wine industry’s supply chain and identifies the main challenges of implementing this technology in the Wine Industry. Also, it is presented a potential proposal to develop a traceability system for the wine industry. In terms of originality, this study aims to contribute and stimulate data-driven discussions regarding the use of technologies to support traditional industries’ supply chains and provide security for producers and consumers.info:eu-repo/semantics/publishedVersio
Letter from Carl Hayden to Henry F. Ashurst
No full textLetter describing three enclosures, a letter from F. M. Gold, Carl T. Hayden's reply to Gold's letter, and a copy of a bill introduced by Cameron
Letter from A. F. Potter to Carl Hayden
No full textLetter from A. F. Potter to Carl T. Hayden describing John H. Page's request to build a railway for the Canyon Copper Company as "impractical"
DNA fusion gene vaccination mobilizes effective anti-leukemic cytotoxic T lymphocytes from a tolerized repertoire
No full textThe majority of known human tumor-associated antigens derive from non-mutated self proteins. T cell tolerance, essential to prevent autoimmunity, must therefore be cautiously circumvented to generate cytotoxic T cell responses against these targets. Our strategy uses DNA fusion vaccines to activate high levels of peptide-specific CTL. Key foreign sequences from tetanus toxin activate tolerance-breaking CD4+ T cell help. Candidate MHC class Ibinding tumor peptide sequences are fused to the C terminus for optimal processing and presentation. To model performance against a leukemia-associated antigen in a tolerized setting, we constructed a fusion vaccine encoding an immunodominant CTL epitopederived from Friend murine leukemia virus gag protein (FMuLVgag) and vaccinated tolerant FMuLVgag-transgenic (gag-Tg) mice. Vaccination with the construct induced epitopespecificIFN-c-producing CD8+ T cells in normal and gag-Tg mice. The frequency and avidity of activated cells were reduced in gag-Tg mice, and no autoimmune injury resulted. However, these CD8+ T cells did exhibit gag-specific cytotoxicity in vitro and in vivo. Also, epitope-specific CTL killed FBL-3 leukemia cells expressing endogenous FMuLVgag antigen and protected against leukemia challenge in vivo. These results demonstrate a simple strategy to engage anti-microbial T cell help to activate epitope-specific polyclonal CD8+ T cell responses from a residual tolerized repertoire
Universidade do Porto : Faculdade de Ciências do Desporto e de Educação Física : Projecto de electricidade : Localização : P. S. - P. T. - Q. G. B. T. - Gerador : Piso 1 : 6 : F. C. D. E. F. : Telas finais
No full textDocumentoUniversidade do Porto : Faculdade de Ciências do Desporto e de Educação Física : Projecto de electricidade : Localização : P. S. - P. T. - Q. G. B. T. - Gerador : Piso 1 : 6 : F. C. D. E. F. : Telas finais / Cristiano Moreira & Associados Lda ; Orlando Botelho Gomes-Engenheiro ; Joaquim Matos de Almeida, Lda. Estudos e Montagens de Electricidade. - 1:50. - 1993-03-00 - 1995-10-30. - 1 [planta] em 1 folha : Desenho em rolo. A planta digitalizada não apresenta a etiqueta com a cota atribuída pelo AC (foi nitidamente cortada). 1ª legenda: Projecto de elecricidade- Cristiano Moreira & Associados Lda. ; Engenheiro Orlando Botelho Gomes, Março de 1993. 2ª legenda: Telas finais- Joaquim Matos de Almeida, Lda. Estudos e Montagens de Electricidade, 30. 10. 1995. N.º do desenho: 3687
Elaboration on Kwapien's theorem: Representing bounded mean zero functions f as coboundary f = g ◦ T − g
No full textIn [8] Kwapien proved that every mean zero function f ∈ L∞[0, 1] we can write as f = g ◦ T − g for some g ∈ L∞[0, 1] and some measure preserving transformation T of [0, 1]. However, as was discovered in [4] there is a gap in the proof for the case that f is not continuous. The aim of this bachelor thesis is filling in that gap in the proof. We first extend Kwapien’s proof for continuous functions to certain other measure spaces. Thereafter, we use the method of proof suggested by Kwapien, to proof the theorem for mean zero function f ∈ L∞[0, 1] for which λ(f−1({x})) = 0 for all x ∈ R. Using this result we then proof that every mean zero function f ∈ L∞[0, 1] can be written as a sum f =(g1 ◦ T1 − g1) + (g2 ◦ T2 − g2) where g1, g2 ∈ L∞[0, 1] and where T1, T2 are measure preserving transformations of [0, 1]. We finish this thesis with an application of Kwapien’s theorem in the study to singular traces Applied Mathematic
f(G,T) and its Cosmological Implications
No full textA coupled formulation of the Gauss-Bonnet invariant term G and the
energy momentum trace T term provide a modified f(G,T) gravity,
has been analyzed in this study. The functional form for the
f(G,T) gravity has been taken as f(G,T)=αT+ βGThe presentation of the authors' names and (or) special characters in the title of the pdf file of the accepted manuscript may differ slightly from what is displayed on the item page. The information in the pdf file of the accepted manuscript reflects the original submission by the author
Bianchi type-I universe in f(R, T) modified gravity with quark matter and Λ
No full text32nd International Physics Congress of Turkish-Physical-Society (TPS) -- SEP 06-09, 2016 -- Bodrum, TURKEYIn this study, we investigate homogeneous and anisotropic Bianchi type I universe in the presence of quark matter source in f (R, T) gravity (Harko et al. in Phys. Rev. D 84:024020, 2011) with cosmological constant A (where R is the Ricci scalar and T is the trace of the energy momentum tensor). For this aim we have used the anisotropy feature of Bianchi type I universe and equation of states (EoS) of quark matter. We explore the exact solution f(R, T)=R + 2f(T) model for Bianchi type I universe model. When t -> infinity, we get very small cosmological constant value, this result agrees with recent observations.Turkish Phys So
A broca do fruto do abacaxi Strymon megarus no Estado do Pará.
No full textA broca-do-fruto Strymon megarus (Godart, 1824) (Lepidoptera, Lycaenidae) é considerada uma das principais pragas da abacaxicultura, podendo causar prejuízos de até 80% quando não controlada (SANCHES, 2005). Os sintomas do ataque da praga são evidentes com a exsudação de resina incolor e fluída nos frutos e eventualmente pode atacar as coroas dos frutos, gemas e mudas na base das inflorescências e raramente minando folhas de abacaxi (MATOS et al.,2007). No município de Floresta do Araguaia, no Sudeste Paraense, S. megarus se constitui em um dos principais problemas fitossanitários do abacaxizeiro Ananas comosus var.comosus L. Merril. juntamente com a podridão-do-olho Phytophthora nicotinae var.parasitica e a fusariose Fusarium subglutinans f. sp. ananas. Além da alta ocorrência da praga a mesma apresentou comportamento atípico, sendo encontrada atacando mudas do tipo filhote de 'Perola' e frutos em estágio próximo da colheita (MATOS et al., 2006). A utilização do controle químico, dentro da Produção Integrada (PI), para o controle de pragas tem por base o monitoramento. Especificamente para a broca-do-fruto, as inspeções devem ser iniciadas no aparecimento da inflorescência e encerradas após o fechamento das flores, com freqüência semanal e amostragem em dez pontos de 20 plantas, em plantios de até cinco hectares e em 20 pontos de 20 plantas em plantios com mais de cinco hectares. O controle químico deve ser iniciado com a detecção de pelo menos um adulto (borboleta) ou duas inflorescências com pelo menos um ovo da praga, ou seja, quando das primeiras posturas de ovos da broca, com redução na aplicação de inseticidas e nos custos com mão-de-obra (SANCHES, 2005; MATOS et al., 2007). Em Floresta do Araguaia, o combate à broca-do-fruto é realizado com pulverizações atrasadas, amplo intervalo de aplicações e em número insuficiente para o controle da praga (MATOS et al., 2006). Com a implantação do projeto de Produção Integrada de Abacaxi nesse município, o acompanhamento da população desse inseto vem sendo realizado com base no monitoramento.Fitossanidade 1
Evidence for the decay B0→J/ψω and measurement of the relative branching fractions of meson decays to J/ψη and J/ψη′
No full textFirst evidence of the B 0 → J / ψ ω decay is found and the B s 0 → J / ψ η and B s 0 → J / ψ η ′ decays are studied using a dataset corresponding to an integrated luminosity of 1.0 fb -1 collected by the LHCb experiment in proton-proton collisions at a centre-of-mass energy of sqrt(s) = 7 TeV. The branching fractions of these decays are measured relative to that of the B 0 → J / ψ ρ 0 decay:frac(B (B 0 → J / ψ ω), B (B 0 → J / ψ ρ 0)) = 0.89 ± 0.19 (stat) - 0.13 + 0.07 (syst),frac(B (B s 0 → J / ψ η), B (B 0 → J / ψ ρ 0)) = 14.0 ± 1.2 (stat) - 1.5 + 1.1 (syst) - 1.0 + 1.1 (frac(f d, f s)),frac(B (B s 0 → J / ψ η ′), B (B 0 → J / ψ ρ 0)) = 12.7 ± 1.1 (stat) - 1.3 + 0.5 (syst) - 0.9 + 1.0 (frac(f d, f s)), where the last uncertainty is due to the knowledge of f d / f s, the ratio of b-quark hadronization factors that accounts for the different production rate of B 0 and B s 0 mesons. The ratio of the branching fractions of B s 0 → J / ψ η ′ and B s 0 → J / ψ η decays is measured to befrac(B (B s 0 → J / ψ η ′), B (B s 0 → J / ψ η)) = 0.90 ± 0.09 (stat) - 0.02 + 0.06 (syst)
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