Neutrinos and dark energy constraints from future galaxy surveys and CMB lensing information

We explore the possibility of obtaining better constraints from future astronomical data by means of the Fisher information matrix formalism. In particular, we consider how cosmic microwave background (CMB) lensing information can improve our parameter error estimation. We consider a massive neutrino scenario and a time-evolving dark energy equation of state in the $\Lambda$CDM framework. We use Planck satellite experimental specifications together with the future galaxy survey Euclid in our forecast. We found improvements in almost all studied parameters considering Planck alone when CMB lensing information is used. In this case, the improvement with respect to the constraints found without using CMB lensing is of 93% around the fiducial value for the neutrino parameter. The improvement on one of the dark energy parameter reaches 4.4%. When Euclid information is included in the analysis, the improvements on the neutrino parameter constraint is of approximately 128% around its fiducial value. The addition of Euclid information provides smaller errors on the dark energy parameters as well. For Euclid alone, the FoM is a factor of $\sim$ 29 higher than that from Planck alone even considering CMB lensing. Finally, the consideration of a nearly perfect CMB experiment showed that CMB lensing cannot be neglected specially in more precise future CMB experiments since it provided in our case a 6 times better FoM in respect to the unlensed CMB analysis .Comment: Accepted for publication in PR

A comunicação e as teorias narrativas

This is a review of the book Diccionario de Teorías Narrativas 2: narratología, cine, videojuegos, medios, edited and organized by the Spanish Professor Lorenzo Vilches Manterola, Emeritus of the Universidad Autónoma de Barcelona (UAB), launched in 2021, in printed and ebook format, by the publisher Caligrama, in Spanish language. The book, organized in the form of a dictionary, has approximately 450 entries (verberts) that bring to light not only fundamental concepts regarding contemporary Narrative Theories, but also applications and methodologies that relate to narratology, the media and communication.Trata-se de uma resenha do livro Diccionario de Teorías Narrativas 2: narratología, cine, videojuegos, medios, editado e organizado pelo espanhol Lorenzo Vilches Manterola, Professor Catedrático e Emérito da Universidad Autónoma de Barcelona (UAB), lançado em 2021 em formato impresso e ebook pela editora Caligrama, em língua espanhola. A obra, organizada em forma de dicionário, conta com aproximadamente 450 entradas (verbertes) que trazem à luz não apenas conceitos fundamentais, a respeito das Teorias Narrativas contemporâneas, mas também aplicações e metodologias que colocam em relação a narratologia, a mídia e a Comunicação

The violence behind the stigma: Lessons from a Mexican border city

Ciudad Juarez, the birthplace of the maquiladora industry in the mid-1960s, won the international newspapers’ headlines since the 1990s as a spot of endemic violence in the northern Mexican border region. The territorial stigmatization of Juarez became even stronger after the unprecedented upsurge of criminality from 2008 to 2010, when it was considered twice the world’s most violent city. This violent context is often considered the result of cartels disputes and hence of the narcos (drug traffickers), responsible for degrading the city. The neoliberal politics of representation of the "undesirables", i.e. drug dealers, sex workers, and other vulnerable groups who could be easily identified as illegitimate dwellers of a "renewed" zone, is the symbolic mainstay both of the zero-tolerance policing (ZTP) and the attempts of gentrification that have taken place in Juarez since 2011. These two urban policies are claimed by the official discourse as the main reasons for the recovering from the seemly unending cycle of violence that Juarez faced until 2010. Nevertheless, the narrative of "rescuing" the city image from the domain of narco-violence, vocalized by decision-makers and hegemonic journalism, contradictorily mobilizes different levels of violence (structural, political, symbolic, and everyday violence) in its formulation. This paper analyses how the interactions between four expressions of violence in the zero-tolerance policing and gentrification policies have violently produced a new space in Ciudad Juarez since 2011