32 research outputs found
Diffusion coefficients on amorphous polystyrene and modelling of migration levels from plastic packaging
No full textThis dataset is actually supplementary data of the scientific article:
Martinez-Lopez, Brais; Gontard, Natalie and Peyron, Stephane "Worst case prediction of additives migration from polystyrene for food safety purposes: a model update" in Food Additives and Contaminants Part A, doi:10.1080/19440049.2017.1402129.
If you use it, please cite it using the reference file we have provided.
This description is the same as in the file "readme.txt", included in the upload.
List of files:
The file database_D contains the experimental diffusivity data for amorphous polystyrene used for the figure 1b. It is a spreadsheet file with two tabs. In the first tab, the diffusion coefficients can be found by choosing molecule family (and the publication were they were found) and temperature in celsius degrees. The second tab contains the same diffusivity data, but they are ranged by increasing molecular weight and temperature. This file is available in open document (.ods) and microsoft excel (.xlsx) formats.
The file migration modelling is also a spreadsheet file, and contains several tabs. The first tab (diffusion coefficient) is an implementation of equation 1, the predictive model for overestimated diffusion coefficients. The given Ap and tau parameter sets are the ones specified in Table 2 for amorphous polystyrene. The second tab (migration levels) is an implementation of equation 3, the solution to Fick's second law that is used to predict migration levels in food, for pre-selected values of alpha (equation 5). The tabs labeled alpha =... contain the sums used in the equation, whereas the tab "roots" contains the first 200 roots of trascendental equation 4, needed to calculate the sum or terms. This file is also available in open document (.ods) and microsoft excel (.xlsx) formats.
The file "table.pdf" sums the main characteristics of the molecule families, together with the references where they were found (in the second page).
The file reference.bib contains the reference that should be cited if you use this dataset for your own work.
Finally, the file readme.txt contains this very same description.
These files have undergone thorough check, so there should not be any mistakes. In the rare event that you find one, please report it to the author so it can get fixed.
[email protected]
Brais Martínez López, PhD
Assistant professor
DTU Fødevareinstituttet
Danmarks Tekniske Universitet
Søltofts Plads
Bygning 227
2800 Kgs. Lyngb
Zonas mineras y civitates del noreste de Portugal en el Alto Imperio (zona fronteriza con España de los distritos de Braganza y Castelo Branco)
No full text[EN] This articles reviews the results of the project «Research and valorisation of mining areas and civitates in NE Portugal (Bragança, Guarda and Castelo Branco districts bordering with Spain) (MinCiNEP)». Within it, archaeological areas of bordering Portugal have been studied, in order to detect processes of transformation witnessed on the Spanish side after the Roman conquest. Special attention has been paid to the identification of Roman mining activity, understood within an integrated view of settlement and territory. Likewise, Roman epigraphy from these areas has been revised[ES] El artículo da cuenta de los resultados del proyecto de investigación «Investigación y valoración de las zonas mineros y civitates del NE de Portugal (zona fronteriza con España de los distritos de Braganza y Castelo Branco) (MinCiNEP)». En su marco se ha llevado a cabo el análisis de áreas arqueológicas portuguesas, limítrofes con territorio español, con el fin de comprobar la existencia de una serie de procesos de cambio desarrollados en ambos territorios tras la conquista romana. Se ha hecho especial hincapié en la identificación de las explotaciones mineras romanas, siempre en el marco de un análisis integral del poblamiento y el territorio. Así mismo, se han documentado y revisado las inscripciones latinas que aparecen en las zonas de estudio.Peer reviewe
Effect of phytofortifiers and other products on the growth and metabolism of horticultural crops
No full textTraballo fin de grao (UDC.CIE). Bioloxía. Curso 2016/2017[Resumen] En este estudio se evaluó el efecto del producto Manvert Sulphos ® en el cultivo de plantas de lechuga (Lactuca sativa L.). Manvert Sulphos ® es una solución nitrogenada con un alto contenido en azufre, cuya acción principal consiste en nutrir y fortalecer la planta, aunque de forma secundaria también puede mejorar la defensa de la planta ante patógenos e inducir la resistencia de la planta mediante la activación de sus defensas naturales.
Para determinar los efectos y la eficacia del producto se estudiaron los siguientes parámetros en plantas tratadas y control: peso fresco, peso seco y peso de cenizas, actividad fotosintética, contenido de proteínas totales y medida de la actividad peroxidasa y concentración de pigmentos fotosintéticos y compuestos fenólicos.
Una vez estudiados estos parámetros se pudo observar que existían diferencias significativas en el peso fresco y peso seco de las plantas y en algunos parámetros de la actividad fotosintética. Estos resultados sugieren que el producto Manvert Sulphos ® tuvo efectos en procesos del metabolismo primario de la planta.[Resumo] Neste estudo evaluouse o efecto do producto Manvert Sulphos ® no cultivo de plantas de leituga (Lactuca sativa L.). Manvert Sulphos ® é una solución nitroxenada cun alto contido de xofre, cuxo principal efecto é nutrir e fortalecer a planta, aínda que de maneira secundaria tamén pode mellorar a defensa da planta ante patóxenos e inducir a resistencia da planta mediante a activación das súas defensas naturais.
Para determinar os efectos e a eficacia do producto estudiáronse os seguintes parámetros en plantas tratadas e control: peso fresco, peso seco e peso de cenizas, actividade fotosintética, contenido de proteínas totales e medida da actividade peroxidasa e concentración de pigmentos fotosintéticos e compostos fenólicos.
Unha vez estudados estos parámetros púidose observar que existían diferenzas significativas no peso fresco e seco das plantas e nalgúns parámetros da actividade fotosintética. Istos resultados suxiren que o producto Manvert Sulphos ® tivo efectos en procesos do metabolismo primario da planta.[Abstract] In this study it has been evaluated the effect of the product Manvert Sulphos ® on lettuce (Lactuca sativa L.). The product Manvert Sulphos ® is a nitrogenous solution with a high content of sulfur, whose main action is nourishing and strengthening the plant, although secondarily it can also improve the defense of the plant against pathogens and induce the resistance of the plant through the activation of their natural defenses. To determine the effects and efficacy of the product the following parameters were studied in treated and control plants: fresh weight, dry weight and ash weight, photosynthetic activity, total protein content and measurement of peroxidase activity and concentration of photosynthetic pigments and phenolic compounds. Once these parameters were studied, it was observed that there were significant differences in the fresh weight and dry weight of the plants and in some parameters of the photosynthetic activity. These results suggest that the product Manvert Sulphos ® had effects on the processes of the primary metabolism of the plant
Narrativas da república do abacaxi. Sobre o autoconhecimento nacional e os paradoxos da sustentabilidade na Costa Rica na peça PIÑA, de Adrián Jiménez Brais
No full textThe following article analyzes the play PIÑA (2023) by Costa Rican author Adrían Jiménez Brais. Based on an understanding of literature as a repository of social knowledge, where urgent narratives, discourses and issues are made visible and negotiated, this study focuses on the function of storytelling in the play. The play deconstructs Costa Rican narratives that pertain to the core of national self-understanding and identity formation, and that promote current agricultural extractivism, producing sustainability paradoxes. By working out these narratives and situating them in cultural history, the literary analysis aims to show, in line with Dillon and Craig, to what extent the play places "narrative evidence" alongside scientific evidence.Este artigo analisa a peça PIÑA (2023), do autor costa-riquenho Adrián Jiménez Brais. Com base na compreensão da literatura como um repositório de saber social, no qual narrativas, discursos e questões urgentes são visibilizados e negociados, o estudo concentra-se na função da narrativa na peça. PIÑA desconstrói narrativas costarriquenhas relacionadas ao cerne do autoconhecimento nacional e da formação identitária, que sustentam o atual extrativismo agrário e produzem paradoxos da sustentabilidade. Ao elaborar essas narrativas e situá-las na história cultural, a análise literária busca demonstrar, em consonância com Dillon e Craig, até que ponto a peça coloca a “evidência narrativa” ao lado da evidência científica.El siguiente artículo analiza la obra PIÑA (2023) del autor costarricense Adrían Jiménez Brais. Basándonos en la comprensión de la literatura como un archivo de saberes sociales, donde se visibilizan y negocian narrativas, discursos y temas urgentes, nos centramos en la función de esta “narración dramática”. Según nuestro enfoque la obra deconstruye narrativas costarricenses que forman parte del núcleo de la autoimagen e identidad nacional y demuestra que estas narrativas promueven el extractivismo agrario actual y producen paradojas de sostenibilidad. Al destacar estas narrativas y situarlas en su contexto histórico-cultural, el análisis literario busca aclarar, en línea con el enfoque de Dillon y Craig, hasta qué punto la obra logra producir una “evidencia narrativa" en sintonía con la evidencia científica
Interpreting the dialectic of sociopolitical tensions in the archaeological past: implications of an anarchist perspective for Iron Age societies
No full text"Alternative Iron Ages examines Iron Age social formations that sit outside traditional paradigms, developing methods for archaeological characterization of alternative models of society. In so doing it contributes to the debates concerning the construction and resistance of inequality taking place in archaeology, anthropology and sociology. Constructing new social theory both archaeologically based and supported by sociological and anthropological theory, the book is ... for those looking to examine and understand life in the European Iron Age." --From publisher description.book chapterPublished
L’expérience de la Commission Femmes et ville de la Ville de Québec vue de l’intérieur
No full textDans cet article, l'auteure fait un retour critique sur la jeune histoire de la Commission femmes et ville de la Ville de Québec, une structure mise en place par la Ville de Québec dans la première moitié des années 90 dans le but de promouvoir la participation des femmes à la vie municipale et d'améliorer les conditions de vie des citoyennes de Québec. Sa collaboration personnelle à cette nouvelle instance municipale lui permet de jeter un regard éclairé sur les réalisations et les limites de cette expérience inédite au Québec. Elle met en lumière, entre autres choses, la difficulté à établir des liens étroits entre cette commission à caractère local et les groupes de femmes, plus actifs sur la scène nationale que municipale, ainsi que la très grande vulnérabilité de cette structure vouée à la promotion des femmes dans le contexte actuel d'austérité budgétaire.In this article, the author takes a critical look at the recent history of the Women and City Commission of Québec City, a new advisory body implemented by the Québec City Council five years ago. The aim of this Commission is to promote the participation of women in municipal public life and to improve their quality of life. Through her personal implication, the author is able to distinguish between the possibilities and the limits of such an experience in Québec. She discusses, among others things, the difficulty of making the Commission and women's groups work together at the local level, taking into account that the actions of these groups are largely nationally oriented. The vulnerability of this original municipal organisation in these times of financial austerity is also examined
The characters of El señor de Bembibre : an approach from the perspective of literary geography.
No full textA partir de los estudios narratológicos de Greimas, se analiza el espacio que ocupan los actores y los actantes en la obra El señor de Bembibre (1844), de Enrique Gil y Carrasco, con el objetivo de desentrañar la construcción espacial de la misma. Se parte, pues, de un enfoque amplio, en que también son centrales las aportaciones del giro espacial, y especialmente de la geografía literaria, así como de cuestiones históricas relacionadas con la figura del autor, que pasa a entenderse como autoetnógrafo de su comarca.Abstract: Based on the narratological studies of Greimas, we analyse the space occupied by the actors and actants in Enrique Gil y Carrasco's El señor de Bembibre (1844), with the aim of unravelling the spatial construction of the play. The starting point, therefore, is a broad approach, in which the contributions of the spatial turn, and especially of literary geography, are also central, as well as historical questions related to the figure of the author, who comes to be understood as an autoethnographer of his region
La Historia general de España de Juan de Mariana y su relación con la Edad Media
No full textThis article studies the Historia general de España by Juan de Mariana understood as a part of historiographic transition taken place between the Middle Ages and the Modern Age, its purpose being to identify a double absence: the absence of awareness on the part of Juan de Mariana that he is narrating a Middle Ages, and the lack of reflections on the idea of Middle Ages throughout the work. We shall begin with a contextual analysis of the Historia general de España to understand it within the reality in which it was written. Then, we shall attend the reception of both the work and its author. Finally, we reflect on the idea of medieval history in the Historia general de España, how the concept of the Middle Ages was born and how the Middle Ages is being written in this time, specifically in the text by MarianaEn este artículo se estudia la Historia general de España de Juan de Mariana en la transición historiográfica entre la Edad Media y la Edad Moderna con el objetivo de identificar una doble ausencia: la ausencia de conciencia por parte de Juan de Mariana de que está narrando una Edad Media, y la falta de reflexiones sobre la idea de Edad Media en la obra. Comenzaremos por un análisis contextual de la Historia general de España para comprenderla dentro de la realidad en la que fue elaborada. Luego, atenderemos a la recepción de la obra y de Juan de Mariana. Por último, reflexionaremos sobre la Historia Medieval en la Historia general de España, cómo nace el concepto de Edad Media y cómo en ese mismo momento se está escribiendo el Medievo, específicamente en el texto de Mariana
A System for Explainable Answer Set Programming
No full text[Abstract]
We present xclingo, a tool for generating explanations from ASP programs annotated with text and labels. These annotations allow tracing the application of rules or the atoms derived by them. The input of xclingo is a markup language written as ASP comment lines, so the programs annotated in this way can still be accepted by a standard ASP solver. xclingo translates the annotations into additional predicates and rules and uses the ASP solver clingo to obtain the extension of those auxiliary predicates. This information is used afterwards to construct derivation trees containing textual explanations. The language allows selecting which atoms to explain and, in its turn, which atoms or rules to include in those explanations. We illustrate the basic features through a diagnosis problem from the literature.Partially supported by MINECO, Spain, grant TIN2017-84453-P and CITIC Research Center, Xunta de Galicia, Spain and ERDF (ED431G 2019/01). The second author is funded by the Alexander von Humboldt Foundation, GermanyXunta de Galicia; ED431G 2019/0
Author Correction: Loss of structural balance in stock markets
No full textCorrection to: Scientific Reports, https://doi.org/10.1038/s41598-021-91266-4, published on 09 June 202
