Fomento de Construcciones y Contratas (Spain)

This paper investigates the potential of different fermentation feedstocks towards succinic acid production. Three alternative flowsheets were constructed and modelled in SuperPro Designer™, utilizing different fermentation substrates: crude glycerol (a by-product of the biodiesel industry), a commercial 95% glucose syrup and pure glycerol. Techno-economic analysis of the modelled plants showed that all three potential investments can be economically profitable, with the crude glycerol case as the most promising one. The succinic acid production cost for the crude glycerol scenario is estimated at 3.59 $/kg, while a thorough study of the capacity effect to the economics showed that it could drop as low as $2.6 $/kg. Parametric analysis and optimization performed on a flowsheet level, indicated opportunities for lowering the production cost down to 3 $/kg, a value that could pave the framework for a further potential decrease in the selling price of the product.

This work deals with a general procedure for optimizing operational diagrams of electric energy production units that use alternative energy sources. The goal of optimization is to supply given load at minimal use of conventional energy sources. In order to perform the optimization, simplified mathematical models of different production units that use alternative energy sources are introduced. These units are based on solar cells, wind turbines, fuel cells and electrolysis. The optimization is performed for given weather forecasting and forecasted load diagram by the Differential Evolution, which is a stochastic search algorithm.

Contradictory data exist on the impact of occupational physical activity (OPA) on cardiovascular health. We aimed to evaluate the association between OPA and cardiometabolic risk factors. A cross-sectional study was performed in an environmental services company in 2017 (Spain). OPA was classified by work categories as being low (≤3 METs) or moderate−high (>3 METs). Multiple linear and logistic binary regression models were used to assess the associations between OPA and cardiometabolic risk factors related to obesity, blood pressure, blood lipids, and associated medical conditions, adjusted by age, sex, alcohol consumption, and global physical activity. In total, 751 employees were included (547 males and 204 females), and 55.5% (n = 417) had moderate−high OPA. Significant inverse associations were observed between OPA and weight, body mass index, waist circumference, waist−hip ratio, and total cholesterol both overall and in males. OPA was significantly inversely related to dyslipidemia overall and in both sexes, while the overweight plus obesity rate was inversely related only in the total and male populations. OPA was associated with a better cardiometabolic risk factor profile, particularly in males. The fact that our models were also adjusted by global physical activity highlights the associations obtained as being independent of leisure time physical activity effects.

This paper describes some of the work carried out within the Horizon 2020 project MIDES (MIcrobial DESalination for low energy drinking water), which is developing the world's largest demonstration of a low-energy sys-tem to produce safe drinking water. The work in focus concerns the support for operational decisions on desalination plants, specifically applied to a mi-crobial-powered approach for water treatment and desalination, starting from the stages of process modelling, process simulation, optimization and lab-validation, through the stages of plant monitoring and automated control. The work is based on the application of the environment IPSEpro for the stage of process modelling and simulation; and on the system DataBridge for auto-mated control, which employs techniques of Machine Learning.

This paper examines the «birth» of works in the tradition of the Heroides in France in the 18th century, originating with the various translations that the epistle Eloisa to Abelard (1717), by Alexander Pope, spawned. The English poet, following in the footsteps of the Roman poet Ovid, would compose a 366-line poem based on the story of the star-crossed lovers Abelard and Eloisa. A poet much admired and imitated in France, his epistle would circulate extensively amongst writers in the country, being imitated and translated both in verse and prose. The author who would contribute to the expansion and development of the poetic subgenre of works following the legacy of the Heroides in France would be CharlesPierre Colardeau, with his Lettre d'Héloïse à Abailard, a free translation of M. Pope, a work published in 1758. His translation would make popular a new kind of «lettre en vers», «épître héroïque» or «élégie», as these poems were termed, which featured expressions of passions and sincere feelings by their characters, who wrote in the first person, moving readers.

El mixoma odontognico se considera una neoplasia benigna de origen dental poco frecuente, de crecimiento lento, con consistencia fi rme y gelatinosa. ste representa 3% de los tumores odontognicos, ocupa el segundo lugar en frecuencia precedido del ameloblastoma, en estos casos sin tener en cuenta el odontoma. Debido al potencial infi ltrativo que posee, es necesario realizar tratamientos quirrgicos radicales para este tipo de neoplasias. Es fundamental tener un adecuado anlisis clnico, imagenolgico e histopatolgico para poder llegar a un diagnstico oportuno y un plan de tratamiento adecuado, lo que previene la persistencia o recidiva de la lesin, y posteriormente pensar en una fase de reconstruccin inmediata o tarda. En este artculo se presenta un caso clnico de una paciente de 13 aos, la cual fue sometida a hemimaxilectoma parcial del lado izquierdo por un abordaje intraoral, con colocacin de obturador inmediato y terminacin con obturador defi nitivo.