Charmonium Production at Forward Rapidity in pp, p-Pb and Pb-Pb Collisions, with ALICE

This contribution focuses on latest ALICE results on charmonium forward production in proton-proton (pp), proton-lead (p-Pb) and lead-lead (Pb-Pb) collisions at the TeV scale. In p-Pb and Pb-Pb collisions, measurements are presented in the form of the charmonium nuclear modification factor (the properly normalized ratio of its production cross section in heavy ion collisions to its pp counterpart) as a function of the charmonium rapidity and transverse momentum. These measurements are compared to available theoretical calculations. Possible interpretations of these results in terms of gluon saturation, initial and final state energy loss, color screening and recombination are also discussed.Comment: 6 pages, 11 figures, Conference Proceedings Large Hadron Collider Physics (LHCP) Conference, 201

Phase Diagram, Scalar-Pseudoscalar Meson Behavior and Restoration of Symmetries in (2+1) Polyakov-Nambu-Jona-Lasinio Model

We explore the phase diagram and the modification of mesonic observables in a hot and dense medium using the (2+1) Polyakov-Nambu-Jona-Lasinio model. We present the phase diagram in the ($T,\,\mu_B$)-plane, with its isentropic trajectories, paying special attention to the chiral critical end point (CEP). Chiral and deconfinement transitions are examined. The modifications of mesonic observables in the medium are explored as a tool to analyze the effective restoration of chiral symmetry for different regions of the phase diagram. It is shown that the meson masses, namely that of the kaons, change abruptly near the CEP, which can be relevant for its experimental search.Comment: 25 pages, 11 figures, 2 table

Women in Resistance: Reporting the impact of IEEEWiEUFRNexhibition at Science and Tech Week at UFRN

In celebration of the 60th anniversary of UFRN, we have proposed an initiative by IEEE WiEUFRNat CIENTEC aiming to highlight the female contribution to the STEM (Science, Technology, Engineering and Maths) degrees at UFRN over the last 60 years. The highlights were made through an exhibition, composed of four parts: I) description of renowned female icons and their contributions to the STEM areas. II) History of female participation in STEM courses at UFRN, through graphs showing the percentage of female students in the courses since its creation. III) #euexisto campaign: display of testimonials videos from current students of STEM courses explaining why they chose the course. IV) Tribute to female Lecturers: display all female lecturersnames that have taught in STEM courses at UFRN. As a result, the group paida tribute to those brilliant women and highlighted their contribution to STEM;acknowledged the current students and teachers of the courses; and helped raising awareness about the need to encourage the participation of women in these courses and in order to build a more diverse environment. Our main goal was raise awareness that the degrees of STEM had consistently less women than man and thus, our feminist group had a very important role to play in increasing those numbers. From the informal feedback we received, we believe our goal was achieved

Anthropometric Parameters in Celiac Disease: A Review on the Different Evaluation Methods and Disease Effects

Artigo completo publicado em periódicoThis review compiled anthropometric data from 29 original articles, published between 1995 and 2015, corresponding to a total sample of 6368 celiac disease subjects. Body mass index was the main parameter for measuring anthropometry (82.1%), followed by body mass (78.6%), body fat (51.7%), bone mineral density and bone mineral content (46.4%), and fat-free mass (44.8%). The main evaluation method was dual x-ray absorptiometry (83.3%), followed by bioimpedance (16.6%), skinfold thickness (16.6%), and isotope dilution (5.5%). This compilation suggests that celiac disease patients without a gluten-free diet (WGFD) and celiac disease patients with a gluten-free diet (GFD) show a lower body mass than the control group, with inconclusive data about WGFD versus GFD. Body mass index is lower in WGFD and GFD compared to control group, and is lower in WGFD compared to GFD. We observed lower values of FM and FFM in WGFD and GFD versus the control group. No difference was found between WGFD versus GFD. BMD and BMC are lower in WGFD versus GFD and GFD versus the control group, with inconclusive data about WGFD versus GFD. The findings of this review suggest that celiac disease patients must be periodically evaluated through anthropometric parameters, since the pathology has the potential to modulate such values even in a gluten-free diet, with these variables reflecting their healthy status. In parallel, the screening of different anthropometric assessment methodologies can provide support for more accurate evaluations by scientists and clinical professionals who work with celiac disease patients

Sacrifice and Efficiency of the Income Tax Schedule

We investigate the efficiency of equal sacrifice tax schedules in an economywhich primitives are exactly those in Mirrlees (1971): a continuum of individualswith identical preferences defined over consumption and leisure who differ withrespect to their labor market productivity. Using a separable specification forpreferences we derive the minimum equal sacrifice allocation and recover thetax schedule that implements it. The separable specification allows us to usethe methodology developed by Werning (2007b) to check whether the scheduleis efficient, that is, whether there is no alternative tax schedule that raises morerevenue while delivering less utility to no one. We find that inefficiency does notarise for most parametrizations we use to approximate the US economy. For thefew cases for which inefficiency does arise, it does so only for very high levels ofincome and marginal tax rates.