1,185 research outputs found
Foodie environment MEAN web application
Currently, human beings are constantly in a rush. Nobody has the time to be conscious of their eating habits. This thesis aims to unify the cooking responsibilities on a website. Hence, the user is in control of the food intake while saving time. A MEAN project is developed to accomplish such a purpose, a web application based on an Angular client-side. Then, the resources come from a MongoDB database connected through an Express server-side. Everything is in a NodeJS runtime environment. Thus the result is a Single Page Application. The user can browse through any recipe in the database. To write personal recipes is an option too. Planning a weekly menu, writing the grocery list or having a food expenses imprint are the different features available. Therefore, it unifies the cooking duties in a highly responsive, multiplatform application.Actualmente, los humanos viven en tensión constante. Nadie tiene tiempo para ser consciente de sus hábitos alimenticios. Esta tesis pretende unificar las responsabilidades en el entorno de la cocina. De esta forma, el usuario tiene el control sobre su ingesta alimentaria mientras ahorra tiempo. Un proyecto MEAN es desarrollado para cumplir este propósito, una aplicación web basada en un cliente formulado en Angular. Seguidamente, los recursos son extraídos de una base de datos implementada en MongoDB conectada a través de un servidor definido con Express. El entorno de ejecución utilizado es NodeJS. Por lo tanto, el resultado es una aplicación de página única. El usuario puede consultar todas las recetas de la base de datos, o aportar nuevas personales. Las diferentes funcionalidades también son planear menús semanales, escribir la lista de la compra o llevar un seguimiento de los gastos en comida. De esta forma, se unifica todo el entorno alimenticio en una aplicación multiplataforma, altamente receptiva.Actualment, els humans viuen en tensió constant. Ningú té temps de ser conscient dels seus hàbits alimentaris. Aquesta tesi pretén unificar les responsabilitats lligades a la cuina en una aplicació web. D'aquesta manera, l'usuari controla la seva ingesta alimentària i estalvia temps. Un projecte MEAN és desenvolupat per aconseguir aquest objectiu, una web amb un client formulat en Angular. Seguidament, els recursos són obtinguts d'una base de dades de MongoDB connectada a través d'un servidor implementat en Express. L'entorn d'execució és NodeJS. Per tant, el resultat és una aplicació de pàgina única. L'usuari pot consultar qualsevol recepta de la base de dades o escriure una de nova. Les diferents funcionalitats són planificar un menú setmanal, fer la llista de la compra o tenir un seguiment de les despeses en l'entorn alimentari. Aconseguint així unificar les responsabilitats lligades a la cuina en una aplicació multiplataforma, altament responsiva
Recuperación de bioetanol de disoluciones acuosas para la obtención de biocombustibles mediante ciclos de adsorción-desorción
El presente trabajo forma parte de las líneas de investigación que el Grupo de Catálisis y Procesos de Separación del Departamento de Ingeniería Química de la Universidad Complutense de Madrid viene desarrollando en los últimos años. Esta investigación ha sido financiada por el Programa de Proyectos de Investigación Fundamental del Plan Nacional de I+D+i a través del contrato CTQ 2009-08838 PPQ. La energía es un bien que incide directamente en el desarrollo de la sociedad y, que habitualmente se asocia al crecimiento y mejora de la calidad de vida de los países. La Agencia Internacional de la Energía en su último informe International Energy Outlook 2016 prevé un aumento del consumo de energía mundial para 2040 de en torno al 48% (Sieminsk A., 2016), lo que supondrá cerca de un 34% de aumento en las emisiones de dióxido de carbono (CO2) al ambiente (respecto a 2016). Además, se indica que las principales fuentes de energía seguirán siendo los combustibles fósiles (petróleo, gas natural y carbón), copando el 78% del mercado. Sin embargo, debido a las políticas ambientales que tienen como objetivo disminuir las emisiones de dióxido de carbono, las energías renovables experimentarán el mayor crecimiento anual (2,6% por año). Aun así, será insuficiente para cumplir con los objetivos propuestos de reducción de emisiones. Tras el Acuerdo de París al que se llegó en la 21ª Conferencia Internacional sobre Cambio Climático (COP21, diciembre 2015), los países firmantes se comprometieron a disminuir las emisiones de dióxido de carbono de forma que, para el año 2100 no se haya producido un aumento de la temperatura de la Tierra superior a 2ºC, tomando como referencia la era pre-industrial (pretendiendo en un futuro disminuir el límite a 1,5ºC)..
Conceptual Mistakes in the Learning of the Mathematics Using or not Derive
En este trabajo analizamos la influencia que ejercen los programas de cálculo simbólico en el aprendizaje de la asignatura de Cálculo que se imparte en el primer curso de Ingeniería Industrial de la Universidad Pontificia Comillas de Madrid. Para ello analizamos los resultados obtenidos por los alumnos en las pruebas de Cálculo realizadas durante el curso, donde comparamos a aquellos que han cursado asignaturas que utilizan paquetes de cálculo simbólico con los que no las cursaron. Como conclusión principal, afirmamos que los programas de cálculo simbólico ayudan al alumno en una mejor compresión de algunos conceptos básicos matemáticos necesarios en la ingeniería.In the present work the influence of symbolic computation programs in the learning process of the
Calculus subject which is taught during the first year of Industrial Engineering at the Universidad
Pontificia Comillas de Madrid has been studied.
The results obtained by students in the Calculus exams which took place during the semester are analyzed
and a comparison is made between the groups who have not used the computer algebra packages with
those who did not.
The main conclusion, the symbolic computation programs help students to better understand basic
mathematical concepts required in engineering
Sustainable Decision-Making Module: Application to Public Procurement
[EN] Universities are preparing future professionals to face real problems. Sustainable development is a challenge that requires particular attention from educational programs. In their profession, civil engineers address many decisions that can compromise the sustainability of infrastructure. This paper proposes a sustainable decision-making module to promote student competencies relevant to solving real engineering decision-making problems while meeting sustainability criteria. The module is tested in a project management course for a master¿s in Planning and Management in Civil Engineering program. Students were placed in a procurement process scenario with the objective of designing a sustainable decision-making layout for selecting the best construction company to construct a highway. The assessment of the student performance revealed that most students acquired higher-order cognitive skills, and the perception survey showed that this learning method has been widely accepted for developing competencies related to both decision-making and sustainable thinking. This study could serve as an example for engineering education to promote sustainable practices through the active exploration of decision-making in real professional situations.The authors acknowledge the financial support of the Valencian Regional Government (Project No. GV/2018//085) and the Spanish Ministry of Economy and Competitiveness, along with European Regional Development Fund (Project No. BIA2017-85098-R).García-Segura, T.; Montalbán-Domingo, L.; Sanz-Benlloch, MA.; Lozano-Torró, A. (2020). Sustainable Decision-Making Module: Application to Public Procurement. Journal of Civil Engineering Education. 146(3):04020004-1-04020004-11. https://doi.org/10.1061/(ASCE)EI.2643-9115.000001404020004-104020004-11146
Supported bifunctional thioureas as recoverable and reusable catalysts for enantioselective nitro-Michael reactions
Producción CientíficaThe catalytic activity of different supported bifunctional thioureas on sulfonylpolystyrene resins has been studied in the nitro-
Michael addition of different nucleophiles to trans-β-nitrostyrene derivatives. The activity of the catalysts depends on the length of
the tether linking the chiral thiourea to the polymer. The best results were obtained with the thiourea derived from (L)-valine and
1,6-hexanediamine. The catalysts can be used in only 2 mol % loading, and reused for at least four cycles in neat conditions. The
ball milling promoted additions also worked very well.Ministerio de Economía, Industria y Competitividad (CTQ2014-59870-P)Junta de Castilla y León (programa de apoyo a proyectos de investigación – Ref. VA064U13
Deuteron cross section evaluation for safety and radioprotection calculations of IFMIF/EVEDA accelerator prototype
under construction in Japan. Interaction of these deuterons with matter will generate high levels of
neutrons and induced activation, whose predicted yields depend strongly on the models used to calculate
the different cross sections. A benchmark test was performed to validate these data for deuteron energies
up to 20 MeV and to define a reasonable methodology for calculating the cross sections needed for
EVEDA. Calculations were performed using the nuclear models included in MCNPX and PHITS, and the
dedicated nuclear model code TALYS. Although the results obtained using TALYS (global parameters)
or Monte Carlo codes disagree with experimental values, a solution is proposed to compute cross sections
that are a good fit to experimental data. A consistent computational procedure is also suggested to
improve both transport simulations/prompt dose and activation/residual dose calculations required for
EVEDA
Endocannabinoid system modulation in peripheral blood mononuclear cells from dimethyl fumarate-treated multiple sclerosis patients.
Background: The endocannabinoid system (ECS) consists of lipid metabolites, their receptors and the enzymes implicated in their synthesis and degradation. The ECS exerts anti-inflammatory and neuroprotective properties and its modulation has the potential of being a therapeutic target in Multiple Sclerosis (MS). Dimethyl fumarate (DMF) is an approved drug for MS, which has immunomodulatory effects although its mechanism of action is not yet fully understood.
Objectives: To test if DMF could modulate the ECS in Peripheral Blood Mononuclear Cells (PBMCs) from MS patients.
Methods: PBMCs from 11 Healthy Donors (HC) and 20 MS patients (at baseline and after 1 year of DMF treatment) were obtained by Ficoll density gradient centrifugation. Patients were clinically followed for 2 years; disease activity was assessed annually. The levels of the endocannabinoids 2-Arachidonoylglycerol (2-AG), Anandamide (AEA), Oleoylethanolamine (OEA) and Palmitoylethanolamine (PEA) were determined by Liquid chromatography–mass spectrometry (LC-MS), and normalized to the total amount of protein.
Results: The median values (in pmol/g protein) of 2-AG and AEA were both similar between HC (361.42 for 2-AG; 63.62 for AEA) and patients at baseline (269.26 for 2-AG; 58.70 for AEA). After 1 year of treatment, no differences were found compared to baseline. However, there was a trend (p=0.07) towards an increase of 2-AG in patients that did not reach NEDA 3 on follow-up at 2 years. OEA and PEA levels were both lower at baseline (61.83 for OEA, p=0.01; 541.0 for PEA, p=0.001) compared to HC (190.35 for OEA; 1140.51 for PEA). After 1 year, PEA levels were unchanged (449.50, p=0.68), but OEA (115.39, p=0.04) increased to levels similar to those of HC.
Conclusions: Our results confirm the dysregulation of the ECS in MS. Furthermore, they shed light on a new mechanism of action of DMF in MS, as it can modulate the ECS through OEApre-print110 K
Methodology to address radioprotection and safety issues in the IFMIF/EVEDA accelerator prototype
In the IFMIF/EVEDA accelerator prototype, deuterons (with energies up to 9 MeV) interact with the materials of the accelerator components due to beam losses and in the beam dump, where the beam is stopped. The productions of neutrons/photons together with radioactive inventories due to deuteron-induced reactions are some major issues for radioprotection and safety assessment. Here, we will focus on the proposal of a computational approach able to simulate deuteron transport and evaluate deuteron interactions and production of secondary particles with acceptable precision. Current Monte Carlo codes, such as MCNPX or PHITS, when applied for deuteron transport calculation, use built-in semi-analytical models to describe deuteron interactions. These models are found unreliable in predicting neutron and photon generated by low energy deuterons, typically present in the IFMIF/EVEDA prototype accelerator. In this context, a new computational methodological approach is proposed based on the use of an extended version of current MC codes capable to use evaluated deuteron libraries for neutron (and gamma) production. The TALYS nuclear reaction code is found to be an interesting potential candidate to produce the evaluated data for double-differential neutron and photon emission cross sections for incident deuterons in the energy range of interest for IFMIF/EVEDA applications. The recently-released deuteron Talys-based Evaluated Nuclear Data Library, TENDL-2009, is considered a good starting point in the road to achieve deuteron data files of enough quality for deuteron transport problems in EVEDA. Unfortunately, current Monte Carlo transport codes are not able to handle light ion libraries except for protons. To overcome this drawback the MCNPX code has been extended to handle deuteron (also triton, helion and alpha) nuclear data libraries. In this new extended MCNPX version called MCUNED, a new variance reduction technique has also been implemented for the production of secondary particles induced by light ions nuclear reactions, which allow reducing drastically the computing time needed in transport and nuclear response function calculations. Verification of these new capabilities for Monte 2 Carlo simulation of deuteron transport and secondary products generation included in MCUNED is successfully achieved. The existence of the MCUNED code allows us for the first time testing the deuteron crosssection TENDL package by simulation of integral experiments. Some preliminary efforts are addressed to compare existing experimental data on thick target neutron yields for Copper with those computed by the MCUNED code using TENDL cross sections
Mapping the scientific structure of organization and management of enterprises using complex networks
Understanding the scientific and social structure of a discipline is a fundamental aspect for scientific evaluation processes, identifying trends and niches, and balancing the trade-off between exploitation and exploration in research. In the present contribution, the production of doctoral theses is used as a proxy to analyze the scientific structure of the knowledge area of business organization in Spain. To that end, a complex networks approach is selected, and two different networks are built: (i) the social network of co-participation in thesis examining committees and thesis supervision, and (ii) a bipartite network of theses and thesis descriptors. The former has a modular structure that is partially explained by thematic specialization in different subdisciplines. The latter serves to assess the interdisciplinary structure of the discipline, as it enables the characterization of affinity levels between fields, research poles and thematic clusters. Our results have implications for the scientific evaluation and formal definition of related fields.Spanish Ministry of Science, Innovation and Universities (RED2018-102518-T), the Spanish State Research Agency (PID2020-118906GB-I00 and PID2020-119894GB-I00 via AEI/10.13039/501100011033), the Junta de Castilla y León – Consejería de Educación (BU055P20), Fundación La Caixa (2020/00062/001) and from NVIDIA Corporation and its donation of the TITAN Xp GPUs that facilitated this research. This work was partially supported by the European Social Fund, as the authors José Miguel Ramírez-Sanz, José Luis Garrido-Labrador and Alicia Olivares-Gil are the recipient of a predoctoral grant from the Department of Education of Junta de Castilla y León (VA) (ORDEN EDU/875/2021). In addition, this work was also partially supported by the Generalitat Valenciana via its Conselleria de Innovación, Universidades, Ciencia y Sociedad Digital, as Adrián Arnaiz is recipicient of a predoctoral grant
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