P Wave Meson Spectrum in a Relativistic Model with Instanton Induced Interaction

On the basis of the phenomenological relativistic harmonic models for quarks we have obtained the masses of P wave mesons. The full Hamiltonian used in the investigation has Lorentz scalar + vector confinement potential, along with one gluon exchange potential (OGEP) and the instanton-induced quark-antiquark interaction (III). A good agreement is obtained with the experimental masses. The respective role of III and OGEP for the determination of the meson masses is discussed.Comment: Corrected typo

Mercapturate Pathway in the Tubulocentric Perspective of Diabetic Kidney Disease

BACKGROUND: The recent growing evidence that the proximal tubule underlies the early pathogenesis of diabetic kidney disease (DKD) is unveiling novel and promising perspectives. This pathophysiological concept links tubulointerstitial oxidative stress, inflammation, hypoxia, and fibrosis with the progression of DKD. In this new angle for DKD, the prevailing molecular mechanisms on proximal tubular cells emerge as an innovative opportunity for prevention and management of DKD as well as to improve diabetic dysmetabolism. SUMMARY: The mercapturate pathway (MAP) is a classical metabolic detoxification route for xenobiotics that is emerging as an integrative circuitry detrimental to resolve tubular inflammation caused by endogenous electrophilic species. Herein we review why and how it might underlie DKD. Key Messages: MAP is a hallmark of proximal tubular cell function, and cysteine-S-conjugates might represent targets for early intervention in DKD. Moreover, the biomonitoring of urinary mercapturates from metabolic inflammation products might be relevant for the implementation of preventive/management strategies in DKD.info:eu-repo/semantics/publishedVersio

Avaliação de consumo de farelo da torta de amêndoa de palma de óleo em bubalinos.

O experimento teve como objetivo avaliar o consumo diário em bubalinos suplementados com torta de amêndoa de Palma de Óleo para subsidiar estratégias de adoção desses subprodutos nas dietas dos animais. Na Fazenda Senador Álvaro Adolpho da Embrapa/Projeto PECUS, participou-se de experimentos com 4 búfalos em delineamento experimental fatorial de 4 animais x 4 tratamentos. Dietas foram fornecidas em cochos e as sobras eram pesadas e analisadas. Foram aplicadas 4 dietas, sendo uma sem farelo da torta de Palma de Óleo (dieta controle) e, três com diferentes proporções de farelo de amêndoa. Os quatro animais participaram do rodízio de dietas, nas quatro fases, desse planejamento experimental que durava 20 dias cada fase. Na primeira fase, os resultados evidenciaram que nos primeiros 9 dias de aplicação das dietas, houve rejeição pelos três animais que receberam suplemento com adição do farelo de amêndoa. Já o farelo de trigo foi preferência unanime para todos os animais quando foram submetidos à dieta controle. Ao receber pela primeira vez o farelo de amêndoa, um animal (n°4) expressou dificuldades em adaptação, deixando em média 1,2 kg no cocho. A dieta que expressou maiores ganhos de peso durante os 90 dias de experimento foi com suplementação farelo de trigo adicionada ao farelo de amêndoa de Palma de óleo. Essas evidências podem ser uma alternativa suplementar, em períodos de baixa oferta de forragem. Dietas utilizando coprodutos de Palma de Óleo permitem a mantença e, podem minimizar as emissões de GEE em períodos de baixa oferta de pastagens.VII ENAAg

Ultraspinning instability of rotating black holes

Rapidly rotating Myers-Perry black holes in d>5 dimensions were conjectured to be unstable by Emparan and Myers. In a previous publication, we found numerically the onset of the axisymmetric ultraspinning instability in the singly-spinning Myers-Perry black hole in d=7,8,9. This threshold signals also a bifurcation to new branches of axisymmetric solutions with pinched horizons that are conjectured to connect to the black ring, black Saturn and other families in the phase diagram of stationary solutions. We firmly establish that this instability is also present in d=6 and in d=10,11. The boundary conditions of the perturbations are discussed in detail for the first time and we prove that they preserve the angular velocity and temperature of the original Myers-Perry black hole. This property is fundamental to establish a thermodynamic necessary condition for the existence of this instability in general rotating backgrounds. We also prove a previous claim that the ultraspinning modes cannot be pure gauge modes. Finally we find new ultraspinning Gregory-Laflamme instabilities of rotating black strings and branes that appear exactly at the critical rotation predicted by the aforementioned thermodynamic criterium. The latter is a refinement of the Gubser-Mitra conjecture.Comment: 38 pages, 6 figures, 1 tabl

Balanço hídrico para a cultura da melancia em Campos Sales, Ceará.

No Estado do Ceará, a fruticultura irrigada tem apresentado enorme potencial, tanto para o mercado interno como para exportação. Nesse sentido, o objetivo desde estudo foi avaliar o balanço hídrico da cultura da melancia em Campos Sales, Ceará, em regime de sequeiro e irrigado, simulando-se diferentes níveis de fração de esgotamento de água no solo (30, 50 e 70%), afim de se obter a viabilidade da irrigação da cultura quanto à produtividade em relação ao cultivo de sequeiro

Three-point correlation functions from semiclassical circular strings

The strong-coupling limit of three-point correlation functions of local operators can be analyzed beyond the supergravity regime using vertex operators representing spinning string states. When two of the vertex operators correspond to heavy string states having large quantum numbers, while the third operator corresponds to a light state with fixed charges, the correlator can be computed in the large string tension limit by means of a semiclassical approximation. We study the case when the heavy string states are circular string solutions with one AdS_5 spin and three different angular momenta along S^5, for several choices of the light string state.Comment: 13 pages. Latex. v2: Misprints corrected and references adde

Code-level model checking in the software development workflow at Amazon Web Services

This article describes a style of applying symbolic model checking developed over the course of four years at Amazon Web Services (AWS). Lessons learned are drawn from proving properties of numerous C‐based systems, for example, custom hypervisors, encryption code, boot loaders, and an IoT operating system. Using our methodology, we find that we can prove the correctness of industrial low‐level C‐based systems with reasonable effort and predictability. Furthermore, AWS developers are increasingly writing their own formal specifications. As part of this effort, we have developed a CI system that allows integration of the proofs into standard development workflows and extended the proof tools to provide better feedback to users. All proofs discussed in this article are publicly available on GitHub