Calcium Triplet Synthesis

We present theoretical equivalent widths for the sum of the two strongest lines of the Calcium Triplet, CaT index, in the near-IR, using evolutionary techniques and the most recent models and observational data for this feature in individual stars. We compute the CaT index for Single Stellar Populations (instantaneous burst, standard Salpeter-type IMF) at four metallicities, Z=0.004, 0.008, 0.02 (solar) and 0.05, and ranging in age from very young bursts of star formation (few Myr) to old stellar populations, up to 17 gyr, representative of globular clusters, elliptical galaxies and bulges of spirals. The interpretation of the observed equivalent widths of CaT in different stellar systems is discussed. Composite-population models are also computed as a tool to interpret the CaT detections in star-forming regions, in order to disantangle between the component due to Red Supergiants stars, RSG, and the underlying, older, population. CaT is found to be an excellent metallicity-indicator for populations older than 1 Gyr, practically independent of the age. We discuss its application to remove the age- metallicity degeneracy, characteristic of all studies of galaxy evolution based on the usual integrated indices (both broad band colors and narrow band indices). The application of the models computed here to the analysis of a sample of elliptical galaxies will be discussed in a forthcoming paper (Gorgas et al. 1998).Comment: 17 pages, 7 figures, to be published in A&

On the potential contribution of rooftop PV to a sustainable electricity mix: the case of Spain

This work evaluates the potential contribution of rooftop PV to the future electricity mix. Several sustainable scenarios are considered, each comprising different shares of centralized renewables, rooftop PV and storage. For each generation scenario, the storage capacity that balances the net hourly demand is determined, and the portfolio combination that minimizes the cost of supplying electricity is obtained. The analysis is applied to mainland Spain, using public information and detailed granular models, both in time (hourly resolution) and space (municipal level). For the Spanish case, when the flexibility of hydro and biomass generation is taken into account, the least-cost portfolio involves rather modest storage capacities, in the order of daily rather than seasonal values. This shows that a sustainable, almost emissions-free electricity system for Spain is possible, at a cost that can be even lower than current wholesale market prices.Comment: 7 tables & 11 figures in the main body (24 pages), and 13 pages for the supplementary material, wit

El fruto del Baobab: as escolhas e as encruzilhadas culturais

IX Congresso Brasileiro de Hispanistas realizado nos dias 22 a 25 agosto 2016Esta comunicação oferece, em linhas gerais, algumas reflexões sobre a teoria e a prática da tradução quando ambas se encontram nas encruzilhadas da tarefa tradutória de um texto inédito em português. El fruto del Baobab, escrito por uma Maite Carranza, autora contemporânea espanhola, antropóloga de formação e com trabalho de campo realizado na Gambia, é o texto que dispara estas reflexões e vai abordar o choque não somente entre culturas, mas entre gerações ao problematizar temas relacionados ao universo existencial feminino com um estilo fluido bem caracterizado nos capítulos curtos que imprimem velocidade à leitura e revelam o perfil da escritoraroteirista. Sua composição está impregnada por amplos termos da cultura africana, mulçumanos, linguagem coloquial e especializada de tal forma que o processo tradutório se perfila, tal como a escritura textual, sob a consideração de múltiplos aspectos até alcançar a particularidade de uma expressão particular, também pelo contraponto, no seio de uma cultura distinta sem assumir uma postura reivindicatória parcial. Ao assinalar e selecionar os embates das escolhas tradutórias, observase como entram em relação as redes semânticas, com suas armadilhas, perdas e ganhos que constituíram uma vez a escritura do texto e voltam a movimentarse na prática significante do texto traduzidoUNILA­-UNIOEST

Do They Want to Regulate Online Profiling?

Online profiling or behavioural tracking is the process by which private companies track and gather data about users’ activities in online platforms. The data collected by all the companies is aggregated with the purpose of creating a comprehensive profile about users. Since at least 15 years ago, there have been several attempts to regulate online profiling in order to reduce its privacy implications. In general, these regulations have tried to limit the way the information is used, the type of data that is collected, and impose or suggest the security standards that the companies should take to protect it. This article will demonstrate that the proposed regulations do not reduce online profiling’s privacy repercussions. In addition, it will argue that in order to reduce privacy repercussions it is necessary to regulate the aggregation and commercialization of the data. However, governments, industries, and users may not have enough incentives to find alternative methods or effective regulations to address the problems raised by online profiling

Psychological Effects of Training in Martial Arts After Interpersonal Trauma

Individuals who experience a traumatic event may have an adverse emotional reaction that negatively impacts their quality of life. The purpose of this qualitative phenomenological study was to explore the influence of training in the martial arts as an intervention in the treatment of interpersonal trauma. The biopsychosocial model provided the framework for the study. The research questions addressed the effects of training in the martial arts and the biological, psychological, and social functioning of individuals who had sustained a form of interpersonal trauma. Data were collected from semistructured interviews with 9 participants. Data were analyzed using Moustakas\u27s modified van Kamm method. Findings indicated that martial arts training was transformative and positive for participants. Benefits included mentorship, a sense of achievement, increased confidence, better parenting, and recovery from substance abuse. Findings may be used to promote martial arts training as a treatment intervention for people who have experienced interpersonal trauma