Evaluation of the impact of high pressure on the storage of filled traditional chocolates

The aim of this study was to evaluate the high hydrostatic pressure (HHP) (400MPa for 2.5min and 500MPa for 1min) and storage temperature (4ºC and 20ºC) influence, on the physicochemical, rheological and microbiological properties of filled chocolates during storage time. The results showed that the physicochemical (moisture, Aw and pH) and microbiological parameters (total mesophiles, moulds and yeasts) were particularly affected at 20ºC during storage time (P<0.05). The dynamic rheological parameters (G’ and G’’) were not affected by the pressure or time of HHP treatment, but were affected by the higher storage temperature especially after 180d. The mechanical spectra of chocolate fillings stored at 4ºC was the least affected, when compared with the chocolates stored at 20ºC (0.1MPa/20ºC, 400MPa/20ºC and 500MPa/20ºC)

instrumento para a prevenção e diagnóstico da LRA na pessoa submetida a cirurgia cardíaca

Mestrado, Enfermagem Médico-Cirúrgica - Enfermagem Nefrológica, 2014, Escola Superior de Enfermagem de LisboaA lesão renal aguda (LRA) no pós-operatório de cirurgia cardíaca representa um desafio frequente para as equipas multidisciplinares, assumindo taxas de incidência variáveis, entre os 3% (Bove et al, 2004) e os 43% (Lombardi & Ferreiro, 2008). A definição de LRA não é unânime, persistindo grande variabilidade nos critérios utilizados, mantendo taxas de incidência díspares, mas elevadas. O sistema de classificação RIFLE permite uma clara definição e estratificação, assumindo-se com um instrumento válido no diagnóstico de LRA. A LRA aumenta o impacto das co morbilidades, o tempo de hospitalização e os custos associados. Cabe aos enfermeiros assumir uma atitude preventiva e implementar instrumentos preditores de risco, como garante da melhoria da qualidade dos cuidados. No âmbito do quadro de competências do enfermeiro especialista e decorrente do percurso desenvolvido no contexto dos ensinos clínicos promovemos a sensibilização dos profissionais para a especificidade da pessoa com alteração da eliminação renal. Em particular, delimitados pelo tema em questão, centramo-nos na pessoa submetida a cirurgia cardíaca em risco de desenvolver LRA no período pós-operatório. A partir dos resultados obtidos podemos afirmar que esta complicação é frequente e repercute-se nos resultados em saúde, nomeadamente nas taxas de mortalidade, na qualidade de vida e no aumento do tempo de internamento. Pretendemos assim evidenciar a necessidade de uma intervenção preventiva dos enfermeiros face ao risco de desenvolvimento de LRA no período pós-operatório. E, quando presente a necessidade de uma adequação técnico científica que permita uma abordagem uniforme nos cuidados à pessoa a experienciar esta transição. Como principal contributo deste percurso resultou a proposta de implementação do sistema de classificação RIFLE na Unidade de Cuidados Intensivos, (UCI) de Cirurgia Cárdio-Torácica, como instrumento para a prevenção e diagnóstico de LRA. Em síntese este percurso resultou no desenvolvimento de competências técnicas, científicas e relacionais específicas do Enfermeiro especialista em enfermagem médico-cirúrgica – área específica de intervenção: enfermagem nefrológica, orientados para área temática da LR

Initial growth of Calendula officinalis L. plants treated with paclobutrazol

Calendula officinalis L. is largely used in composition in beds and like cutted flowers. On the other hand, the height (30 – 60 cm), difficult the cultivate and sales like potted plant, owing to the tipping of pots and for the disposition of plants on the tables.  Paclobutrazol (PBZ) is a vegetal regulator that reduces the growth of plants.   The purpose of this study was to evaluate the initial growth of C. officinalis L. treated with PBZ. The experiment was conducted in a greenhouse in the Floriculture Sector, of Agronomy Department, of Universidade Federal de Viçosa in October a November of 2020. The experiment was conducted in complety randomized desing and treatments were control, 2500, 5000, 7500 e 10000 ppm of PBZ doses with five repetitions. Two applications of PBZ doses were realized, being the first 15 days and the second 30 days after transplantation.  Plant height, leaf area, stem length and diameter, root length, leaves number and photosynthetic pigments were quantified.   PBZ, regardless of concentration, reduced plant heigth, leaf area, stem length, and diameter. Root length, leaves number and photossyntetic pigments did not significant among doses aplied. The initial growth of C. officinalis L. was reduced with PBZ doses.Calendula officinalis L. is largely used in composition in beds and like cutted flowers. On the other hand, the height (30 – 60 cm), difficult the cultivate and sales like potted plant, owing to the tipping of pots and for the disposition of plants on the tables.  Paclobutrazol (PBZ) is a vegetal regulator that reduces the growth of plants.   The purpose of this study was to evaluate the initial growth of C. officinalis L. treated with PBZ. The experiment was conducted in a greenhouse in the Floriculture Sector, of Agronomy Department, of Universidade Federal de Viçosa in October a November of 2020. The experiment was conducted in complety randomized desing and treatments were control, 2500, 5000, 7500 e 10000 ppm of PBZ doses with five repetitions. Two applications of PBZ doses were realized, being the first 15 days and the second 30 days after transplantation.  Plant height, leaf area, stem length and diameter, root length, leaves number and photosynthetic pigments were quantified.   PBZ, regardless of concentration, reduced plant heigth, leaf area, stem length, and diameter. Root length, leaves number and photossyntetic pigments did not significant among doses aplied. The initial growth of C. officinalis L. was reduced with PBZ doses

Observation of Higgs boson production in association with a top quark pair at the LHC with the ATLAS detector

The observation of Higgs boson production in association with a top quark pair ( tt¯H ), based on the analysis of proton–proton collision data at a centre-of-mass energy of 13 TeV recorded with the ATLAS detector at the Large Hadron Collider, is presented. Using data corresponding to integrated luminosities of up to 79.8 fb −1 , and considering Higgs boson decays into bb¯ , WW⁎ , τ+τ− , γγ , and ZZ⁎ , the observed significance is 5.8 standard deviations, compared to an expectation of 4.9 standard deviations. Combined with the tt¯H searches using a dataset corresponding to integrated luminosities of 4.5 fb −1 at 7 TeV and 20.3 fb −1 at 8 TeV, the observed (expected) significance is 6.3 (5.1) standard deviations. Assuming Standard Model branching fractions, the total tt¯H production cross section at 13 TeV is measured to be 670 ± 90 (stat.) −100+110 (syst.) fb, in agreement with the Standard Model prediction.Peer Reviewe

Measurement of photon–jet transverse momentum correlations in 5.02 TeV Pb + Pb and pppp collisions with ATLAS

Jets created in association with a photon can be used as a calibrated probe to study energy loss in the medium created in nuclear collisions. Measurements of the transverse momentum balance between isolated photons and inclusive jets are presented using integrated luminosities of 0.49 nb$^{-1}$ of Pb+Pb collision data at $\sqrt{s_\mathrm{NN}}=5.02$ TeV and 25 pb$^{-1}$ of $pp$ collision data at $\sqrt{s}=5.02$ TeV recorded with the ATLAS detector at the LHC. Photons with transverse momentum $63.1 31.6$ GeV and pseudorapidity $\left|\eta^\mathrm{jet}\right| 7\pi/8$. Distributions of the per-photon jet yield as a function of $x_\mathrm{J\gamma}$, $(1/N_\gamma)(\mathrm{d}N/\mathrm{d}x_\mathrm{J\gamma})$, are corrected for detector effects via a two-dimensional unfolding procedure and reported at the particle level. In $pp$ collisions, the distributions are well described by Monte Carlo event generators. In Pb+Pb collisions, the $x_\mathrm{J\gamma}$ distribution is modified from that observed in $pp$ collisions with increasing centrality, consistent with the picture of parton energy loss in the hot nuclear medium. The data are compared with a suite of energy-loss models and calculations.Peer Reviewe

Pegada hídrica – um contributo para a sustentabilidade da fileira vitivinícola

A escassez de água e o aumento da temperatura decorrente das alterações climáticas têm vindo a levantar preocupações junto do sector vitivinícola, devido ao seu impacto na produção e qualidade do vinho. O uso eficiente dos recursos naturais e a subsequente redução dos custos de produção é hoje um dos objetivos dos vitivinicultores. O projeto WineWaterFootprint avaliou a pegada hídrica na fileira vitivinícola, através do desenvolvimento de uma metodologia aplicada a estudos de caso, com o objetivo de conhecer os padrões de consumo de água e de identificar pontos chave passiveis de melhoria. Em Portugal existe pouca informação relativa à pegada hídrica e nenhuma determinada diretamente com a monitorização de casos de estudo. Da análise dos resultados obtidos ao longo de dois anos de monitorização verificou-se uma pegada hídrica entre 520 e 765 L de água por 0,75 L de vinho produzido, tendo sido a vinha a componente com maior contribuição para o valor global. Apesar de os resultados da pegada hídrica serem similares a outros estudos desenvolvidos na região Mediterrânica a avaliação da sua sustentabilidade, através da análise de ciclo de vida, permitiu identificar pontos críticos e ineficiências na vinha e no processo de produção. Esta metodologia aplicada à fileira constitui um modelo de avaliação da sustentabilidade do produto, com indicadores concretos que podem contribuir para mitigar os impactes decorrentes da sua produção.O Projeto WineWaterFootprint (POCI-01-0145-FEDER-023360) é financiado pelo COMPETE 2020info:eu-repo/semantics/publishedVersio

Spatial Evaluation and Modeling of Dengue Seroprevalence and Vector Density in Rio de Janeiro, Brazil

Dengue is a major public health problem in many tropical regions of the world, including Brazil, where Aedes aegypti is the main vector. We present a household study that combines data on dengue fever seroprevalence, recent dengue infection, and vector density, in three neighborhoods of Rio de Janeiro, Brazil, during its most devastating dengue epidemic to date. This integrated entomological–serological survey showed evidence of silent transmission even during a severe epidemic. Also, past exposure to dengue virus was highly associated with age and living in areas of high movement of individuals and social/commercial activity. No association was observed between household infestation index and risk of dengue infection in these areas. Our findings are discussed in the light of current theories regarding transmission thresholds and relative role of mosquitoes and humans as vectors of dengue viruses

Search for dark matter produced in association with bottom or top quarks in √s = 13 TeV pp collisions with the ATLAS detector

A search for weakly interacting massive particle dark matter produced in association with bottom or top quarks is presented. Final states containing third-generation quarks and miss- ing transverse momentum are considered. The analysis uses 36.1 fb−1 of proton–proton collision data recorded by the ATLAS experiment at √s = 13 TeV in 2015 and 2016. No significant excess of events above the estimated backgrounds is observed. The results are in- terpreted in the framework of simplified models of spin-0 dark-matter mediators. For colour- neutral spin-0 mediators produced in association with top quarks and decaying into a pair of dark-matter particles, mediator masses below 50 GeV are excluded assuming a dark-matter candidate mass of 1 GeV and unitary couplings. For scalar and pseudoscalar mediators produced in association with bottom quarks, the search sets limits on the production cross- section of 300 times the predicted rate for mediators with masses between 10 and 50 GeV and assuming a dark-matter mass of 1 GeV and unitary coupling. Constraints on colour- charged scalar simplified models are also presented. Assuming a dark-matter particle mass of 35 GeV, mediator particles with mass below 1.1 TeV are excluded for couplings yielding a dark-matter relic density consistent with measurements