1,622 research outputs found

    Political competition and the allocation of public investment in Mexico

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    This paper examines the causality between central government spending in regions and local elections, in an environment of increasing electoral competition and a undefined decentralisation. This study examines Mexican elections during the period 1990-1995 where the main party started loosing part of its influence and there were many claims of use of the budget to favour the central governing party. We employ data on public investment and municipalities ruled by the PRI in each Mexican region. The evidence shows that there is opportunistic behaviour of the central government using public investment to gain local control of pressures for decentralisation.

    Is the impact of public investment neutral across the regional income distribution? Evidence from Mexico

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    This paper investigates the contribution of public investment to the reduction of regional inequalities, with a specific application to Mexico. We use quantile regressions to examine the impact of public investment on regional disparities according to the position of each region in the conditional distribution of regional income. Results confirm the hypothesis that regional inequalities can indeed be attributed to the regional distribution of public investment, where the observed pattern shows that public investment mainly helped to reduce regional inequalities between the richest regions.regional development, quantile regression, public investment

    Improving the Control of the Cement Making Process by Applying Multivariate Classical Least Squares Calibration

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    Multivariate calibration techniques allow the control of chemical processes by estimating sample properties in a non-destructive, fast and consequently cheap way, which would otherwise require destructive, time-consuming or costly testing. This paper deals with the classical least squares (CLS) which is applied for improving the control of the calcium aluminate cement making process. The CLS has been successful since its performance has been verified through the prediction of samples different from those used to calibrate the model. The multivariate treatment of the data provided by two instrumental methods, wavelength dispersive X-ray fluorescence (WDXRF) and reflection colorimetry (RC) allows for rapid and accuratedetermination of the Fe2O3/FeO ratio in CAC. Rapid  determination of the Fe2O3 content provides a better controlof the kiln, producing higher quality calcium aluminatecement. As both WDXRF and RC methods are currently routinely applied in cement factories as continuous controls of the cement making process, no extra equipment is necessary

    Political competition and the allocation of public investment in Mexico

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    This paper examines the causality between central government spending in regions and local elections, in an environment of increasing electoral competition and a undefined decentralisation. This study examines Mexican elections during the period 1990-1995 where the main party started loosing part of its influence and there were many claims of use of the budget to favour the central governing party. We employ data on public investment and municipalities ruled by the PRI in each Mexican region. The evidence shows that there is opportunistic behaviour of the central government using public investment to gain local control of pressures for decentralisation

    EM counterparts of recoiling black holes: general relativistic simulations of non-Keplerian discs

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    We investigate the dynamics of a circumbinary disc that responds to the loss of mass and to the recoil velocity of the black hole produced by the merger of a binary system of supermassive black holes. We perform the first two-dimensional general relativistic hydrodynamics simulations of \textit{extended} non-Keplerian discs and employ a new technique to construct a "shock detector", thus determining the precise location of the shocks produced in the accreting disc by the recoiling black hole. In this way we can study how the properties of the system, such as the spin, mass and recoil velocity of the black hole, affect the mass accretion rate and are imprinted on the electromagnetic emission from these sources. We argue that the estimates of the bremsstrahlung luminosity computed without properly taking into account the radiation transfer yield cooling times that are unrealistically short. At the same time we show, through an approximation based on the relativistic isothermal evolution, that the luminosity produced can reach a peak value above L1043 erg/sL \simeq 10^{43} \ {\rm erg/s} at about 30d\sim 30\,{\rm d} after the merger of a binary with total mass M106MM\simeq 10^6 M_\odot and persist for several days at values which are a factor of a few smaller. If confirmed by more sophisticated calculations such a signal could indeed lead to an electromagnetic counterpart of the merger of binary black-hole system.Comment: 17 pages, 11 figures, accepted by A&A, movies available at http://numrel.aei.mpg.de/Visualisations/Archive/BinaryBlackHoles/EMCounterparts/EMCounterparts.htm

    Soluble factors from Lactobacillus reuteri CRL1098 have anti-inflammatory effects in acute lung injury induced by lipopolysaccharide in mice

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    We have previously demonstrated that Lactobacillus reuteri CRL1098 soluble factors were able to reduce TNF-a production by human peripheral blood mononuclear cells. The aims of this study were to determine whether L. reuteri CRL1098 soluble factors were able to modulate in vitro the inflammatory response triggered by LPS in murine macrophages, to gain insight into the molecular mechanisms involved in the immunoregulatory effect, and to evaluate in vivo its capacity to exert antiinflammatory actions in acute lung injury induced by LPS in mice. In vitro assays demonstrated that L. reuteri CRL1098 soluble factors significantly reduced the production of pro-inflammatory mediators (NO, COX-2, and Hsp70) and proinflammatory cytokines (TNF-a, and IL-6) caused by the stimulation of macrophages with LPS. NF-kB and PI3K inhibition by L. reuteri CRL1098 soluble factors contributed to these inhibitory effects. Inhibition of PI3K/Akt pathway and the diminished expression of CD14 could be involved in the immunoregulatory effect. In addition, our in vivo data proved that the PS induced secretion of the pro-inflammatory cytokines, inflammatory cells recruitment to the airways and inflammatory lung tissue damage were reduced in L. reuteri CRL1098 soluble factors treated mice, providing a new way to reduce excessive pulmonary inflammation.Fil: Griet, Milagros. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tucumán. Centro de Referencia para Lactobacilos (i); ArgentinaFil: Zelaya, María Hortensia del Rosario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tucumán. Centro de Referencia para Lactobacilos (i); ArgentinaFil: Mateos, Melina Valeria. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnol.conicet - Bahia Blanca. Instituto de Invest.bioquimicas Bahia Blanca (i); ArgentinaFil: Salva, Maria Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tucumán. Centro de Referencia Para Lactobacilos (i); ArgentinaFil: Juarez, Guillermo Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tucumán. Centro de Referencia Para Lactobacilos (i); ArgentinaFil: Font, Graciela Maria. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tucumán. Centro de Referencia Para Lactobacilos (i); ArgentinaFil: Villena, Julio Cesar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tucumán. Centro de Referencia Para Lactobacilos (i); ArgentinaFil: Salvador, Gabriela Alejandra. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnol.conicet - Bahia Blanca. Instituto de Invest.bioquimicas Bahia Blanca (i); ArgentinaFil: Rodriguez, Ana Virginia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Tucumán. Centro de Referencia Para Lactobacilos (i); Argentin

    Load assessment and analysis of impacts in multibody systems

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    The evaluation of contact forces during an impact requires the use of continuous force-based methods. An accurate prediction of the impact force demands the identification of the contact parameters on a case-by-case basis. In this paper, the preimpact effective kinetic energy (Formula presented.) is put forward as an indicator of the intensity of the impact force along the contact normal direction. This represents a part of the total kinetic energy of the system that is associated with the subspace of constrained motion defined by the impact constraints at the moment of contact onset. Its value depends only on the mechanical parameters and the configuration of the system. We illustrate in this paper that this indicator can be used to characterize the impact force intensity. The suitability of this indicator is confirmed by numerical simulations and experimentsPostprint (author's final draft

    Short-term regulation of peptide YY secretion by a mixed meal or peritoneal glucose-based dialysate in patients with chronic renal failure

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    This is a pre-copyedited, author-produced version of an article accepted for publication in "Nephrology Dialysis Trasnplantation" following peer review. The version of the record is avaliable online at Oxford Academic website.Instituto de Salud Carlos III, PI051024Instituto de Salud Carlos III, PI070413Xunta de Galicia, PS07/12Xunta de Galicia, 2006/2
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