Toda joia, toda beleza! Finding what is left in the margins or regime collisions: A pluralist take on managerialism

This paper has two authors, two titles and is written in the form of a dialogue,rather than conveying a unitary voice, as one would instead expect of a coauthored paper. The reason for this is that the articulation of the authors' disagreement, despite the identification of each of them with “the left”, is precisely the object of inquiry. After briefly introducing the problem on which the authors’ discussion takes place, namely regime collisions, and the clash of approaches that are available to (decide whether to) deal with them, a dialogue follows, in which the authors’ voices are clearly separated as they discuss the specific issue of the measurement of quality as a (managerialist) proposal to “solve” regime collisions, and contrast that to more openly politicised views of approaching regime collisions. In the end, the main features of such discussion are examined in such a way as to bring forth the peculiar self-consciousness that pluralist spaces give rise to, weakening and downsizing every point of view that appoints itself as the “higher” vantage point from which to describe the world and enumerate problems, and stimulating a constant oscillation between perspectives. This commitment to a pluralistic confrontation and the ensuing hybridization of perspectives is, we argue, at the heart of the idea of “the left” which we both identify with

Pesquisa de recepção do programa de rádio Prosa Rural: propondo uma metodologia.

Este artigo apresenta proposta de metodologia para a realização das pesquisas de audiência e de recepção do Prosa Rural, programa de rádio da Empresa Brasileira de Pesquisa Agropecuária (Embrapa). Com o intuito de se conhecer o real alcance do programa, o perfil de seus ouvintes, sua opinião quanto à linguagem e ao formato adotados e ainda se os conteúdos apresentados atendem aos seus interesses, propõe-se a realização de uma pesquisa quantitativa do tipo survey e de uma pesquisa de recepção com o uso de grupos focais. O Prosa Rural foi criado em 2004 como instrumento de divulgação científica a fim de levar ao conhecimento de jovens e aos produtores rurais da agricultura familiar os resultados das pesquisas desenvolvidas pela Embrapa. Hoje, é veiculado em todo o País por mais de mil emissoras, que se tornaram parceiras da iniciativa

Highly collimated microquasar jets as efficient cosmic-ray sources

Supernova remnants are believed to be the main sites where Galactic cosmic rays originate. This scenario, however, fails to explain some of the features observed in the cosmic-ray spectrum. Microquasars have been proposed as additional candidates, because their non-thermal emission indicates the existence of efficient particle acceleration mechanisms in their jets. A promising scenario envisages the production of relativistic neutrons in the jets, that decay outside the system injecting relativistic protons to the surroundings. The first investigations of this scenario suggest that microquasars might be fairly alternative cosmic-ray sources. We aim at assessing the role played by the degree of collimation of the jet on the cosmic-ray energetics in the neutron-carrier scenario, as well as the properties of the emission region. Our goals are to explain the Galactic component of the observed proton cosmic-ray spectrum at energies higher than $\sim 10$ GeV and to relate the mentioned jet properties with the power and spectral index of the produced cosmic rays. We find that collimated jets, with compact acceleration regions close to the jet base, are very efficient sources that could deliver a fraction of up to $\sim 0.01$ of their relativistic proton luminosity into cosmic rays. Collimation is the most significant feature regarding efficiency; a well collimated jet might be $\sim 4$ orders of magnitude more efficient than a poorly collimated one. The main feature of the presented mechanism is the production of a spectrum with a steeper spectral index ($\sim 2.3$ at energies up to $\sim 10$ TeV) than in the supernova scenario, and closer to what is observed. The predictions of our model may be used to infer the total contribution of the population of Galactic microquasars to the cosmic ray population, and therefore to quantitatively assess their significance as cosmic-ray sources.Comment: 11 pages, 14 figure

A compactness theorem for scalar-flat metrics on manifolds with boundary

Let (M,g) be a compact Riemannian manifold with boundary. This paper is concerned with the set of scalar-flat metrics which are in the conformal class of g and have the boundary as a constant mean curvature hypersurface. We prove that this set is compact for dimensions greater than or equal to 7 under the generic condition that the trace-free 2nd fundamental form of the boundary is nonzero everywhere.Comment: 49 pages. Final version, to appear in Calc. Var. Partial Differential Equation

Développement, culture et communication: liens et enjeux de la collaboration scientifique dans un cadre international, public-organisationnel et interculturel: une étude des relations personnelles: le point de vue des fonctionnaires de l'EMBRAPA et du CIRAD.

Étude à propos des écarts entre la vision officielle et la vision officieuse de deux institutions de recherche agropastorale qui développent des activités sur place, dans des pays d?Afrique : l'Entreprise brésilienne de recherche agropastorale (l'EMBRAPA), située au Brésil, et le Centre de coopération internationale en recherche agronomique pour le développement (le CIRAD), placé en France. L'approche épistémologique adoptée est celui de la sociologie compréhensive de Michel Maffesoli. Outre la recherche documentaire, le travail d'investigation sur le terrain a été accompli à travers la réalisation de questionnaires et d?entretiens individuels en profondeur et semi-directifs auprès des fonctionnaires des deux institutions concernées. Pour l'analyse des données, nous avons adopté la méthode comparative constante et l'analyse thématique. Nous avons mené notre étude à l'égard de trois axes thématiques prédéfinis: 1 ? science, progrès et développement; 2 ? culture, quotidien et imaginaire et 3 ? Communication organisationnelle, internationale et interculturelle. Notre question de recherche étant : est-ce que, de nos jours, à l?échelle des relations personnelles mais dans un cadre professionnel à la fois, organisationnel, scientifique et public, les relations Brésil/Afrique et France/Afrique reproduisent le schéma dominateur ? dominé qui a forcément marqué les relations entre les pays pendant la Modernité ? Nous en avons conclu que, même si ces relations sont beaucoup plus complexes et multiformes que les idées préconçues construites dans le cadrage dualiste que la pensée typiquement Moderne nous a léguées, des vestiges de ce schéma simpliste et réducteur sont toujours présents dans l'imaginaire des acteurs sociaux consultés à partir du moment où on les retrouve dans leurs récits.Thèse (Doctorat de Sociologie) - École doctorale 180: Laboratoire Technique et Enjeux du Corps, Université Paris Descartes, Paris. Dirigée: Michel Maffesoli

Lactococcus garvieae endocarditis in a patient undergoing chronic hemodialysis. First case report in Chile and review of the literature

Indexación: Scopus; Scielo.Los casos reportados de infección por Lactococcus garvieae son escasos y sólo uno asociado a hemodiálisis. Comunicamos el caso de endocarditis infecciosa de curso fatal por L. garvieae en un paciente con una enfermedad renal crónica sometido a hemodiálisis y portador de diverticulosis colónica no complicada. Se realiza una revisión de los casos publicados y se discuten los actuales desafíos diagnósticos y terapéuticos de este patógeno, capaz de producir infecciones graves y potencialmente fatales en pacientes susceptibles. Este sería el segundo caso de infección asociada a hemodiálisis y el primero reportado en Chile.Reports of Lactococcus garvieae infections in humans are scarce, and only one of them in a patient under-going hemodialysis. We report the first case of Lactococcus garvieae infection in Chile, presenting as an infective endocarditis, ultimately fatal, in a patient with uncomplicated colonic diverticulosis and end stage renal failure undergoing chronic hemodialysis. We review the published cases and discuss the diagnostic and therapeutic challenges associated with this new, increasingly diagnosed pathogen, capable of producing serious infections in susceptible patients.https://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0716-10182017000400397&lng=en&nrm=iso&tlng=e

Using Rapidity Gaps to Distinguish Between Higgs Production by W and Gluon Fusion

The possibility of distinguishing between two higgs production mechanisms, W fusion and gluon fusion, is investigated using the Monte Carlo event generator PYTHIA. It is shown that, considering the designed CM energy and luminosity for the LHC, it is not possible to distinguish between the two higgs production processes as, for a given integrated luminosity, they lead to the same number of events containing a rapidity gap.Comment: uudecoded compressed tar file containing a tex file and 6 figure files. Two more figures, avaiable from the authors upon reques

Chitosan microparticles as injectable scaffolds for tissue engineering applications

[Excerpt] Microparticles may be used as a support for the adhesion and proliferation of cells. Therefore, the combination of isolated particles and previously incubated cells on their surface may have potential to be used, in the form of a suspension with media, as an injectable scaffold in the context of tissue regeneration: on expects that the particles might agglomerate after the implantation as a consequence of cells proliferation and extracellular matrix production. [...]info:eu-repo/semantics/publishedVersio