Avaliação das características de ácido húmico em solos sob adição de lodo de esgoto.

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Diversidade genética entre plantas sexuais de Panicum maximum Jacq. acessada por marcadores RAPD.

O objetivo deste trabalho foi avaliar a diversidade genética entre plantas sexuais tetraploides de Panicum maximum do banco de germoplasma da Embrapa Gado de Corte, utilizando a técnica de polimorfismos de DNA amplificados ao acaso (RAPD). Quatroze plantas foram avaliadas com 17 primers. A similaridade genética foi calculada usando o coeficiente de Jaccard e o agrupamento foi feito pelo método de médias aritméticas dos pares de grupos não-balanceados (UPGMA) com base nas dissimilaridades. Uma análise de bootstrap foi feita para avaliar a consistência dos grupos formados. Um total de 145 bandas de DNA foi obtido, sendo que 128 (~88,3%) delas foram polimórficas entre as plantas estudadas. Os valores de similaridade variaram de 0,34 a 0,69. Quatro grupos foram formados e as plantas S16 e S13 não foram agrupadas com as plantas restantes, apresentando maior divergência genética. Os resultados mostram moderada diversidade genética entre as 14 plantas sexuais tetraploides de P. maximum estudadas. Os resultados obtidos podem subsidiar a escolha de progenitores para cruzamentos visando melhoramento genético da espécie.bitstream/item/71880/1/BP30.pd

Nonrelativistic Quantum Analysis of the Charged Particle-Dyon System on a Conical Spacetime

In this paper we develop the nonrelativistic quantum analysis of the charged particle-dyon system in the spacetime produced by an idealized cosmic string. In order to do that, we assume that the dyon is superposed to the cosmic string. Considering this peculiar configuration {\it conical} monopole harmonics are constructed, which are a generalizations of previous monopole harmonics obtained by Wu and Yang(1976 {\it Nucl. Phys. B} {\bf 107} 365) defined on a conical three-geometry. Bound and scattering wave functions are explicitly derived. As to bound states, we present the energy spectrum of the system, and analyze how the presence of the topological defect modifies obtained result. We also analyze this system admitting the presence of an extra isotropic harmonic potential acting on the particle. We show that the presence of this potential produces significant changes in the energy spectrum of the system.Comment: Paper accepted for publication in Classical and Quantum Gravit

CODAP: um Consenso Multidisciplinar sobre a Definição, Diagnóstico e Tratamento da Dislipidemia Aterogénica em Portugal

Introduction and aims: Atherogenic dyslipidemia is an important contributor to residual cardiovascular (CV) risk, but it is underdiagnosed and undertreated. This study aimed to assess the opinion of Portuguese experts to generate a consensus concerning the diagnosis and treatment of atherogenic dyslipidemia, as well as to contribute toward standardization of clinical practice in this disorder. Methods: The study consisted in the application of a questionnaire to an expert panel, following a modified Delphi methodology. Results: The majority (88.4%) of the proposed items were found to be consensual. The expert panel recognized the importance of the atherogenic dyslipidemia phenotype, the role played by low-density lipoprotein cholesterol and non-high-density lipoprotein cholesterol as risk markers and therapeutic targets, the choice of statins as first-line lipid-lowering drugs, and the value of associating statins with fenofibrate as a means to reduce residual CV risk. However, the role played by triglycerides in CV risk and the therapeutic value of fibrates lacked consensus. Taking into consideration the state of the art and the opinions expressed in this study, the scientific committee developed a treatment algorithm aimed to improve the perception and treatment of atherogenic dyslipidemia. Conclusions: The experts involved in this study were shown to be familiar with the concept and the importance of atherogenic dyslipidemia. The few situations in which a consensus could not be found were mainly related to the interpretation and/or relevance of the available evidence.info:eu-repo/semantics/publishedVersio

Budbreak induction in kiwifruit vines cultivated in an organic system by the biological method of single node cutting.

Kiwifruit vines are an alternative approach to diversify Brazilian fruit farming because of the low supply and increase in the demand for their fruits. Hydrogenated cyanamide, which is the most common rest-breaking agent, is highly toxic and its use is not allowed in organic production systems. This study aimed at evaluating the efficiency of alternative rest-breaking agents in kiwifruit vines by using the biological method of single node cutting. Twigs of the cultivar Bruno were collected in an organic orchard in Pelotas, a city located in Rio Grande do Sul state, Brazil. Seven-centimeter-long cuts with a single shoot at the ends were segmented. Cuttings were placed on plastic trays with phenolic foam and soaked in water, at 85% relative humidity on average, and kept in bio-oxygen demand (BOD) incubators at 25± 1 °C and a 16-h photoperiod. Budbreak was evaluated in 2-day and 3-day intervals. The experiment was conducted in a completely randomized design with ten treatments and three replications of ten sampling units each. The following variables were analyzed: average budbreak time (ABT), final budbreak rate (FBR), vigorous budbreak rate (VBR), velocity of budbreak (VB), percentage of open buds (POB) and dormancy index (DI). The rest-breaking agent garlic extract (GE) 10% + mineral oil (MO) 2% was the most efficient one in budbreak induction in both production cycles. Thus, this dose is recommended for budbreak induction in kiwifruit vines grown in an organic system

Exact Solutions of the Klein-Gordon Equation in the Presence of a Dyon, Magnetic Flux and Scalar Potential in the Specetime of Gravitational Defects

In this paper we analyse the relativistic quantum motion of a charged spin-0 particle in the presence of a dyon, Aharonov-Bohm magnetic field and scalar potential, in the spacetimes produced by an idealized cosmic string and global monopole. In order to develop this analysis, we assume that the dyon and the Aharonov-Bohm magnetic field are superposed to both gravitational defects. Two distinct configurations for the scalar potential, $S(r)$, are considered: $i)$ the potential proportional to the inverse of the radial distance, i.e., $S\propto1/r$, and $ii)$ the potential proportional to this distance, i.e., $S\propto r$. For both cases the center of the potentials coincide with the dyon's position. In the case of the cosmic string the Aharonov-Bohm magnetic field is considered along the defect, and for the global monopole this magnetic field pierces the defect. The energy spectra are computed for both cases and explicitly shown their dependence on the electrostatic and scalar coupling constants. Also we analyse scattering states of the Klein-Gordon equations, and show how the phase shifts depend on the geometry of the spacetime and on the coupling constants parameter.Comment: To be published in CQG. Minor comments adde

Costs and financial viability of blueberry production in Pelotas.

O cultivo do mirtilo é uma atividade econômica recente no Brasil. O sistema produtivo e comercial ainda precisa de melhorias, principalmente para oferecer regularidade, qualidade produtiva e transparência de custos e preços. Não se tem conhecimento de estudos dedicados a analisar a viabilidade econômica da produção de mirtilo nas condições brasileiras. Portanto, o objetivo deste trabalho é levantar os custos e analisar a viabilidade econômico-financeira desta cultura em uma fazenda localizada em Pelotas (RS). A coleta e análise dos dados seguiram o procedimento adotado pela Matriz de Análise de Política e os indicadores de viabilidade utilizados foram o Valor Presente Líquido (VPL), a Taxa Interna de Retorno (TIR) e o Payback. Os resultados mostraram um custo de produção de US$7.394,61 por hectare ou US$ 2.310,88 por tonelada e viabilidade financeira na produção, dado que o VPL para o período de 10 anos foi de US$26.214,81, a TIR de 26,36$ 7.180,25 hectare/ano-1 e o Payback foi de 4,9 anos. Desse modo, a produção de mirtilo no sul do RS é lucrativa e a cadeia produtiva pode receber novos investimentos, segundo as condições tecnológicas e mercadológicas indicadas neste estudo.Título em português: Custos e viabilidade financeira da produção de mirtilo cultivado em Pelotas

Stent for Life in Portugal: This initiative is here to stay

AIMS: Portugal has one of the lowest rates of primary percutaneous coronary intervention (p-PCI) in Western Europe. This study assessed the progress of Portuguese p-PCI performance indicators one year after Portugal joined the Stent for Life (SFL) initiative. METHODS AND RESULTS: Two national surveys were carried out, each covering a period of one month: the first when Portugal joined the SFL in 2011 (Moment Zero), and the second one year later (Moment One). A total of 397 consecutive patients with probable ST-segment elevation myocardial infarction were enrolled (201 at Moment Zero and 196 at Moment One) from 15 centers. During this period, the number of patients who arrived at a local hospital without p-PCI decreased (62-47%; p=0.004) and transportation to a p-PCI hospital by the National Institute for Medical Emergencies (INEM) increased significantly (13-37%; p<0.001). Shorter times to revascularization were observed, due to shorter patient delay (118-102 min; p=0.008). Door-to-balloon delay and system delay remained unchanged. CONCLUSIONS: Improvements in performance indicators for p-PCI demonstrate the success of the first year of the local SFL plan, which was mainly focused on raising public awareness of the need to use the INEM emergency services, which has reduced patient delay, and on improving secondary transportation

Relativistic quantum dynamics of a charged particle in cosmic string spacetime in the presence of magnetic field and scalar potential

In this paper we analyze the relativistic quantum motion of charged spin-0 and spin-1/2 particles in the presence of a uniform magnetic field and scalar potentials in the cosmic string spacetime. In order to develop this analysis, we assume that the magnetic field is parallel to the string and the scalar potentials present a cylindrical symmetry with their center on the string. Two distinct configurations for the scalar potential, $S(r)$, are considered: $(i)$ the potential proportional to the inverse of the polar distance, i.e., $S\propto1/r$, and $(ii)$ the potential proportional to this distance, i.e., $S\propto r$. The energy spectra are explicitly computed for different physical situations and presented their dependences on the magnetic field strength and scalar coupling constants.Comment: New version with 20 pages and no figure. Some minor revisions and six references added. Accepted for publication in EJP