Sistema Regional de Información
en línea para Revistas Científicas de América Latina,
el Caribe, España y Portugal

The Community Health Agent (CHW) is part of the primary care team, and the nature of their work can represent a risk for the emergence of morbidities. The present study aimed to analyze the factors associated with lifestyle in CHW in the Municipality of Montes Claros, Minas Gerais, Brazil. This is a cross-sectional, analytical, and census study. Self-administered instruments were used, contemplating sociodemographic, work, behavioral and clinical factors and the Fantastic Lifestyle Questionnaire. A total of 675 CHW participated in the study, with a mean age of 36.7±9.8. About 10% had a regular lifestyle. A low prevalence of a regular lifestyle was observed among CHW. After the multivariate analysis, the regular lifestyle remained associated with the inadequate Work Ability Index (WAI) (OR = 2.25; 95%CI: 1.30 - 3.91), the worst perception of health status (OR = 2.66; 95%CI: 1.46 - 4.84). CHWs who presented altered Body Mass Index (BMI) were more likely to have a regular lifestyle (OR = 2.33; 95%CI: 1.20 - 4.52). It was observed in this study that work and clinical factors influence the lifestyle of CHAs. These findings are relevant, as they put into perspective important elements that impact the health of CHAs and that can be modified by implementing occupational health programs.

The present study aimed to compare by age group, sex, competitive level, game position, and years of soccer practice of Mozambican soccer players as a function of cognitive orientations for the ego and task. The sample consisted of 443 soccer players from 32 clubs, 196 (44.2%) female and 247 (55.8%) male, aged between 16 and 37 years. To carry out the study, the version translated and validated into Portuguese of the Task and Ego Orientation in Sport Questionnaire – TEOSQ was applied. The results show that soccer players obtained high values for cognitive task orientation (4.01 ± 1.07) and moderately low values for ego orientation (2.72 ± 1.17). Given the results, it is concluded that the type of cognitive orientation of sports practice is an important factor that distinguishes Mozambican footballers. There is a predominance of a task-oriented cognitive orientation in these footballers, favoring a greater manifestation of sporting attitudes following the literary evidence in other football contexts.

Training with virtual reality (VR) technologies is an expanding application field. Healthcare can largely benefit from it as VR offers many advantages over conventional training methodologies, especially when the goal is to train specialized technicians (Narciso et al., 2019).

In this research we have developed experimental designs of the ultimatum game with supervised agents. This agents have unbiased and biased thinking depending on the case. We used Reinforcement Learning and Bucket Brigade to program the artficial agentes. We used simulations and behavior comparison to answer the following questions: Does artificial intelligence reach a perfect subgame equilibrium in the ultimatum game experiment? How would Artificial Intelligence behave in the Ultimatum Game experiment if biased thinking is included in it? This exploratory analysis showed one important result: artificial inteligence by itself doesn´t reach a perfect subgame equilibrium. Whereas, the experimental designs with biased thinking agents quickly converge to an equilibrium. Finally, we demonstrated that the agents with envy bias behaves the same as the ones with altruistic bias.

Bioeconomy of biopolymers based on domestic organic waste: A model to reduce the environmental impact generated by single-use plastic waste in the Pasaje Amador Building in the city of Quito, is a research project that seeks to contribute to a transformation of a "linear" paradigm to a "circular" paradigm, becoming a challenge due to the obstacles for bioprocesses and bioproducts to develop. The main objective of the study was to know the importance and benefit of designing and implementing a bioeconomy model for the design of biopolymers from domestic organic waste. The methodology is of a mixed nature, the study was carried out in the Pasaje Amador Building located in the city of Quito, Ecuador. The sample size for the investigation was fifteen microenterprises, ten offices and ten departments. The investigation began with a data collection phase, through a questionnaire, which was subjected to statistical reliability tests, continuing with an experimental phase where the biopolymer was designed, from organic waste. For the experimental phase, four experimental tests were carried out to that the results present reliability, using a non-probabilistic analysis, within the experimentation the intentional manipulation of variables (independent), measurement of variables (dependent), control and validity, comparison groups were taken into account. The design was finally evaluated through a product satisfaction questionnaire, applied to the study sample, to validate the impact of the insertion of biopolymers in the Amador Passage compared to single-use plastics. The conclusion of the satisfaction survey affirmed the positive hypothesis of the research that the Bioeconomy model of biopolymers from domestic organic waste, allows to reduce the environmental impact generated by single-use plastic waste in Pasaje Amador Building, in Quito

Soil pollution scenarios are every time more often and bioremediation is a well-known strategy to remove pollutants from soil. In theory, only the bioavailable fractions of a pollutant might be degraded using bioremediation. This hypothesis was tested via the estimation of bioavailable petroleum-hydrocarbons in polluted clay soil and measurements on the biodegradation of the hydrocarbons in bioremediation systems at both laboratory (ideal conditions) and field conditions (treatment units of 120 m3 on landfarming and windrow configurations). A non-exhaustive extraction technique with 50% 1-propanol was used to estimate bioavailability. Treatment efficiencies (based on the total concentration of the pollutant) were 47.27 and 45.83% at laboratory and field conditions, respectively. Bioremediation efficiencies (based on the bioavailable fraction of the pollutant) were 92.66 and 88.76% for laboratory and field conditions, respectively. These results suggest that bioavailability might be used as a tool to set up feasible biodegradation goals.

In this work, we describe the feasibility to reconstruct acausal vertices that could arise from Lee Wick standard model processes. Using open data from the CMS experiment, we identify measurable wrong displaced vertices associated to acausal-like decays predicted by the Lee Wick model. The signal considered is the pair production of Lee Wick electrons due to its favorable cross-section. The study was carried out for mass values of 200, 300, 400, and 500 GeV for the Lee Wick electron, with the 200 GeV sample being the one closest to satisfying detector resolution limitations. The expected final state consists of one electron and a pair of jets emerging from a wrong displaced vertex for each of the Lee Wick electrons. We detail the method used to reconstruct wrong displaced vertices with the given topology. We also define a new quantity, the parallelity, to better distinguish wrong displaced vertices. We test the possibility to identify acausal decays by comparing the signal, simulated background processes and collisions data from CMS Run 1. An asymmetry in the parallelity distribution suggests the capability of distinguishing acausal decays if ever present.

La madera y los tableros de madera que forman parte de la estructura y/o mobiliario de edificaciones, en caso de incendio, contribuyen a la expansión del fuego. El objetivo de la investigación fue determinar el tiempo de ignición y la pérdida de masa en pruebas de reacción al fuego en probetas de Pinus pseudostrobus, tableros enlistonados, contrachapados, de media densidad y de astillas orientadas. Se prepararon 35 probetas de pequeñas dimensiones de cada material y se calculó su contenido de humedad y su densidad. Se realizaron pruebas de reacción al fuego y se determinó el tiempo de ignición y la pérdida de masa. La densidad aumenta en el orden siguiente: tableros enlistonados, tableros contrachapados, P. pseudostrobus, tableros de media densidad y tableros de astillas orientadas. Comparativamente, el tiempo de ignición de los enlistonados y de media densidad son similares y los más cortos; el tiempo correspondiente a los contrachapados es cercano al de la madera de P. pseudostrobus; y el tiempo de ignición de los tableros de astillas orientadas es el más largo. La pérdida de masa de la madera de P. pseudostrobus es menor comparativamente con la de los tableros contrachapados y de astillas orientadas. La pérdida de masa de los tableros de fibra de media densidad y enlistonados es mayor y similar entre sí. Para los cuatro tableros de madera estudiados, a medida que su tiempo de ignición aumenta, su pérdida de masa disminuye.

Liquefied petroleum gas (LPG) is essential, mainly for domestic use, representing 10.4% of Ecuador's energy demand. In the absence of mechanisms for the valorization of lignocellulosic waste in the country, a biomass-to-butane conversion route was proposed as a substitute for LPG through a computational design to evaluate its technical, economic and environmental feasibility. The optimal waste for the process was selected based on the annual generation rate and physical-chemical composition. The route configuration was designed in AspenPlus® with an input of 77 t/h biomass. Based on the results, an economic and life cycle analysis was carried out using the openLCA® software. Butane production reached seven tons per hour and an energy density of 26.7 MJ/L. Regarding the economic axis, the minimum sale price calculated was $1.03/kg, considering the sale of lignin as a co-product. In this way, the biofuel was competitive with the sale price of one dollar per kilogram of LPG. Finally, the total carbon footprint of the process was 102 g CO2-eq/MJ, higher than the European standard of 94 g CO2-eq/MJ. This research opens the door towards optimizing resources and transforming the country's energy matrix.

A data driven solution to the dark matter problem is presented. This short and self-contained overview is intended for a wide audience, with full technical details available in the cited references. We present redundant, independent and consistent measurements of the dark matter particle comoving root-mean-square velocity vhrms(1), or equivalently, of the dark matter temperature-to-mass ratio. These measurements agree with the “no freeze-in and no freeze-out” scenario of spin zero dark matter that decouples early on from the Standard Model sector, e.g. spin zero dark matter coupled to the Higgs boson or to the top quark. About this paperThe present article was published on April 13th, 2023 in the European Journal of Applied Sciences and it has been assigned a DOI by the EJAS. The work is republished by ACI Avances en Ciencias e Ingenierías according to the creative commons license (Attribution 4.0 International, CC BY 4.0) used by the EJAS, and according to the copyright preserved by the author, Bruce Hoeneisen. Readers can access the original publication via the following link: https://journals.scholarpublishing.org/index.php/AIVP/article/view/14383 or through the DOI: https://doi.org/10.14738/aivp.112.14383.