Goncalves V.P.,Federal University of Pelotas |
MacHado M.V.T.,Federal University of Rio Grande do Sul
Physical Review C - Nuclear Physics | Year: 2011
In this Rapid Communication we update our predictions for the photoproduction of vector mesons in coherent pp and AA collisions at Relativistic Heavy Ion Collider (RHIC) and Large Hadron Collider (LHC) energies using the color dipole approach and the Color Glass Condensate formalism. In particular, we present our predictions for the first run of the LHC at half energy and for the rapidity dependence of the ratio between the J/Ψ and ρ cross sections at RHIC energies. © 2011 American Physical Society.
Reiser R.H.S.,Federal University of Pelotas |
Bedregal B.,Federal University of Rio Grande do Norte
Information Sciences | Year: 2013
Firstly, this work studies the class of representable (co)implications obtained by idempotent aggregations and pair of dual interval functions, namely fuzzy implications and coimplications. Following the same construction, as the main contribution in the context of the interval-valued intuitionistic fuzzy logic, which is conceived by Atanassov, the class of representable Atanassov's intuitionistic fuzzy implications is obtained by composition of idempotent interval aggregations and dual pairs of representable fuzzy implications and coimplications. Additionally, the conditions under which relevant properties of fuzzy implications and Atanassov's intuitionistic fuzzy implications are preserved by such constructions are investigated. Furthermore, taking into account the projection functions and related (interval-valued) Atanassov's intuitionistic fuzzy implications, it also shows that representable (interval-valued) Atanassov's intuitionistic fuzzy implications preserve (degenerate) diagonal elements. © 2013 Elsevier Inc. All rights reserved.
Victora C.G.,Federal University of Pelotas
Food and nutrition bulletin | Year: 2012
Maternal nutrition interventions are efficacious in improving birth outcomes. It is important to demonstrate that if delivered in field conditions they produce improvements in health and nutrition. Analyses of scaling-up of five program implemented in several countries. These include micronutrient supplementation, food fortification, food supplements, nutrition education and counseling, and conditional cash transfers (as a platform for delivering interventions). Evidence on impact and cost-effectiveness is assessed, especially on achieving high, equitable, and sustained coverage, and reasons for success or failure Systematic review of articles on large-scale programs in several databases. Two separate reviewers carried out independent searches. A separate review of the gray literature was carried out including websites of the most important organizations leading with these programs. With Google Scholar a detailed review of the 100 most frequently cited references on each of the five above topics was conducted. Food fortification programs: iron and folic acid fortification were less successful than salt iodization initiatives, as the latter attracted more advocacy. Micronutrient supplementation programs: Nicaragua and Nepal achieved good coverage. Key elements of success are antenatal care coverage, ensuring availability of tablets, and improving compliance. Integrated nutrition programs in India, Bangladesh, and Madagascar with food supplementation and/or behavioral change interventions report improved coverage and behaviors, but achievements are below targets. The Mexican conditional cash transfer program provides a good example of use of this platform to deliver maternal nutritional interventions. Programs differ in complexity, and key elements for success vary with the type of program and the context in which they operate. Special attention must be given to equity, as even with improved overall coverage and impact inequalities may even be increased. Finally, much greater investments are needed in independent monitoring and evaluation.
Borges M.C.,Federal University of Pelotas
Circulation Research | Year: 2016
RATIONALE:: Hypoadiponectinemia correlates with several coronary heart disease (CHD) risk factors. However, it is unknown whether adiponectin is causally implicated in CHD etiology. OBJECTIVE:: We aimed to investigate the causal effect of adiponectin on CHD risk. METHODS AND RESULTS:: We undertook a Mendelian randomization study using data from genome-wide association studies (GWAS) consortia. We used the ADIPOGen consortium to identify genetic variants that could be used as instrumental variables for the effect of adiponectin. Data on the association of these genetic variants with CHD risk were obtained from CARDIoGRAM (22,233 CHD cases and 64,762 controls of European ancestry) and from CARDIoGRAMplusC4D Metabochip (63,746 cases and 130,681 controls; ~ 91% of European ancestry) consortia. Data on the association of genetic variants with adiponectin levels and with CHD were combined to estimate the influence of blood adiponectin on CHD risk.In the conservative approach (restricted to using variants within the adiponectin gene as instrumental variables), each 1 unit increase in log blood adiponectin concentration was associated with an odds ratio for CHD of 0.83 (95%CI: 0.68; 1.01) in CARDIoGRAM and 0.97 (95%CI: 0.84, 1.12) in CARDIoGRAMplusC4D Metabochip. Findings from the liberal approach (including variants in any locus across the genome) indicated a protective effect of adiponectin that was attenuated to the null following adjustment for known CHD predictors CONCLUSIONS:: Overall, our findings do not support a causal role of adiponectin levels in CHD etiology.Circulation Research is published on behalf of the American Heart Association, Inc., by Wolters Kluwer. This is an open access article under the terms of the Creative Commons Attribution Non-Commercial-NoDervis License, which permits use, distribution, and reproduction in any medium, provided that the original work is properly cited, the use is noncommercial, and no modifications or adaptations are made. © 2016 American Heart Association, Inc.
Goncalves V.P.,Federal University of Pelotas |
Moreira B.D.,University of Sao Paulo |
Navarra F.S.,University of Sao Paulo
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics | Year: 2015
The exclusive ϒ photoproduction in proton-proton and proton-nucleus collisions at LHC energies is investigated using the color dipole formalism and considering different models for the ϒ wave function and forward dipole-target scattering amplitude. Our goal is to update the color dipole predictions and estimate the theoretical uncertainty present in these predictions. We present predictions for the kinematical ranges probed by the ALICE, CMS and LHCb Collaborations. © 2015 The Authors.