9300 research outputs found
Sort by
Monitoring Horizontal Movement of Top of a Spire in Saint Mary Cathedral of Burgos via Computer Vision
No full textLong-term monitoring of horizontal movement of the top of vertical elements, such as towers of historical monuments or chimneys, remains a challenge with current solutions. In such structures, which are usually of high historical and cultural value, ageing and structural degradation directly impact their horizontal movement. This study presents a novel solution based on computer vision that allows the monitoring of horizontal movements with very good accuracy (uncertainty less than ±0.26 mm), high measurement speed (up to 5 Hz), and reduced cost. A real-life validation was carried out on the south spire of the Saint Mary Cathedral in Burgos, Spain. Its horizontal movements were monitored for more than a year, and some relevant events were recorded, including high-range thermal variations, strong wind events, and ringing of the bells. The results showed that the proposed solution was particularly robust for long-term monitoring of slow movements, such as those produced by thermal events or those derived from structural degradation. The white noise of the sensor was small and, for long-term measurements and small reading frequencies, it could obtain field accuracies of the order of ±0.1 mm at a recording frequency of 1/10 Hz, which further improved at lower recording frequencies.A Spanish patent (patent no: ES 2 684 134 B2) was granted(Vicente et al., 2019);Universidad de Burgos [VII Edition ofthe ”Convocatoria Prueba Concepto”
Influence of the result on the anxiety of initiated soccer players
No full textEl objetivo principal del estudio es conocer los niveles de ansiedad cognitiva, autoconfianza y ansiedad somática previa y posterior al partido y el impacto en el rendimiento deportivo (victoria-derrota) en ambos sexos. Participaron 95 futbolistas (26 mujeres y 69 varones) pertenecientes a las categorías cadete, juvenil y senior de clubes Vitoria Gasteiz. Se utilizó el Inventario de Ansiedad Competitiva en el Deporte (CSAI-2). (19), formado por 27 ítems, adaptado y validado al español. Los resultados reflejan una mayor autoconfianza por parte de los hombres en el momento previo a competir respecto a las mujeres, las cuales, muestran elevados valores de ansiedad somática. La lectura correcta de los estados de ansiedad de los deportistas puede ayudar a entrenadores y preparadores físicos a modular el tono y el contenido de las charlas motivacionales y las consignas técnico-tácticas de manera que exista un mayor aprovechamiento.The main objective of the study is to know the levels of cognitive anxiety, self-confi dence and somatic anxiety before and after the match and the impact on sports performance (victory-loss) in both sexes. 95 footballers participated (26 women and 69 men) belonging to the cadet, youth and senior categories of Vitoria Gasteiz clubs. The Sports Competitive Anxiety Inventory (CSAI-2) was used. (19), made up of 27 items, adapted and validated into Spanish. The results refl ect a greater self-confi dence on the part of men in the moment prior to competing compared to women, who show high values of somatic anxiety. The correct reading of athletes’ states of anxiety can help coaches and physical trainers to modulate the tone and content of motivational talks and technical-tactical instructions so that there is greater use
Unreachable Ithaca. The Impossible Return of the Greek Heroes
No full textLos antiguos griegos, obligados durante toda su historia a partir
y a regresar, fabularon sobre la dificultad o imposibilidad del retorno. Muchos
de estos relatos se encontraban recogidos en el poema épico perdido Nóstoi (Los
regresos), donde se relataba la vuelta al hogar de los héroes que combatieron
en Troya. Sin duda, es el regreso de Odiseo/Ulises el que ha proyectado una
sombra más fructífera en la literatura posterior, pero no es el único. Como figuras complementarias a la de Ulises, se presenta a Diomedes, el compañero de
Ulises, y a Medea. En el trabajo se analizan las distintas formas de alejamiento y
de regreso que representan estos personajes y su recepción en muchos relatos
posteriores, de los que se ofrece una panorámica significativa.The ancient Greeks, forced in their history to leave and go
back, fabled about the difficulty or impossibility of returning. Many of those
stories were collected in the lost epic poem Nóstoi (Returns), that told of the
homecoming of the heroes who had fought in Troy. Undoubtedly, it is the return of Odysseus/Ulysses that has cast a more fruitful shadow in later literature, but
it is not the only one. Together with Ulysses, his companion Diomedes and
Medea are also featured. This essay analyzes the different ways of leaving and
returning that these characters represent and their reception in many subsequent
narratives, of which a significant overview is offered
Manuel González Prada: genius and figure of peruvian thought and literature
No full textNo se puede decir que el Modernismo peruano sea una escuelao un estilo porque dentro de él caben varias escuelas y muchos estilos. Fue una corriente muy compleja, unión de numerosas influencias, incluso la del Romanticismo que nunca desapareció. Críticos de la relevancia de González Vigil (2004) dividen el Modernismo en tres etapas: Premodernismo, Modernismo, y Postmodernismo. Todas estas fases, unidas en el período de tiempo que va de 1886 a 1918, conforman esta sugestiva corriente artística. El siguiente artículo trata sobre la fase del Premodernismo peruano y se centra en la figura de Manuel González Prada (poeta, ensayista, orador, político, crítico literario), una las figuras más relevantes de Hispanoamérica de finales del siglo XIX y comienzos del XX.A lo largo de las siguientes páginas recordaremos la vida y obra de este autor de la mano de los críticos peruanos más notables y se verán añadidas diversas pinceladas de recientes ideas de la crítica actual.Peruvian Modernism con not be said to be a school or a style. Within this movement there arte several artistic lines. It was a very complex current, a unión of numerous influences, including that of Romanticism, which never disappeared. Critics of the relevance of González Vigil (2004) divide Modernism into three stages: Premodernism, Modernism y Postmodernism. All these phases, united in the period of time that goes from 1886 to 1910, make up this suggestive artistic tren. This article deals with the pase of Peruvian Premodernism and focuses on the figure of Manuel González Prada, poet, essayist, speaker, politician, literary critic and one of the most relevant figures in Latin America in the late nineteenth and early twentieth centuries. Troughout the following pages we will remember the life and work of this autor from the hand of the most important Peruvian critics and various brushstrokes of new ideas from the new critic about this famous writer will added
The Use of Literature in EFL Classroom: Italian Canadian Short Stories as a Teaching Innovation Experience Through Flipped Classroom Strategy
No full textThe aim of this article consists of showing that motivation is necessary for the success of a teaching and learning experience in an online classroom. By using the flipped learning method, the student becomes the central part of learning, being more active than in the traditional class and taking responsibility for his/her learning. He/she goes from being a mere spectator who only listens to the teacher's speech to someone with a voice in the classroom structured to allow student to acquire knowledge and build different competencies. The experience described below by implementing the flipped learning in the subject Contemporary Culture and Society of the Anglophone Communities, of the online Bachelor's Degree in Spanish Language and Literature, at the University of Burgos, excitement and self-expression replaced fear and dread. This awareness helped students in the construction of critical thinking and, in this specific case, culture and literature represented a better way for students to understand and know the society in which the language used in the texts is the language spoken (Valdes, 1986). During the first phase of this experience, the 56 students were divided into 14 groups of four members in each one; they were given instructions by different videos recorded by the teacher and during which she explained what to do, how to develop the project and how to proceed and deliver the final task. She also introduced the general topic of the Unit “Acculturation, adaptation and sense of belonging in women emigrants through Italian Canadian short stories” by uploading different readings by different women writers who had migrated from Italy to Canada for different reasons and in different periods since XX century until today. Mostly based on real events, these writings unveil the different coping strategies deployed by Italian Canadian women and how they dealt with the complex process of settling into life in a new country. After having chosen the writer to work on the 14 groups proceeded to research and investigate them. They also kept regular contact with the teacher by fora or tutorials so the teacher could track and monitor their learning progress and needs. The project consisted of preparing a presentation on the woman writer selected including the context she lived in and her work. During the last phase, after the task delivery, she asked all groups to share the posters and presentations and to ask questions and comments about them in a forum opened for that purpose. Finally, a questionnaire on their perception of the flipped learning approach in the course was prepared and distributed to the students. The result of this experience has shown that the flipped learning strategy succeeded in motivating the students to build and acquire knowledge and to reach beneficial outcomes
Estrategia de Marketing de Sostenibilidad en las empresas de México
No full textTo bridge the gap in the sustainability marketing literature, this research aims to identify sustainability marketing strategies (SMS) in companies through their sustainability reports in Mexico. The empirical analysis used data from 47 firms from different sectors listed on the Mexican Stock Exchange (MSE) and from corporations published in the Global Reporting Initiative (GRI) database. Through content analysis and cluster analysis, it was identified that enterprises are adopting SMS, addressing the stakeholders in their value chain: sourcing, production and distribution. However, most of them are at an adoption stage, focusing their efforts on implementing sustainability practices in their sourcing and production activities, leaving distribution as an area of opportunity. This research is based on companies from an emerging economy country, contributing direct data obtained from their published reports as an approach to the phenomenon of sustainability in marketing. Future studies could compare companies from developed and developing countries.Para reducir la brecha en la literatura de marketing
de sostenibilidad, la presente investigación tiene
como objetivo identificar las estrategias de marketing
de sostenibilidad (MS) en las empresas que reportan
sus informes de sostenibilidad en México. El análisis
empírico utilizó datos de 47 empresas de varios
sectores que cotizan en la Bolsa Mexicana de Valores
(BMV) y compañías publicadas en la base de datos
del Global Reporting Initiative (GRI). Mediante el
análisis de contenido y el análisis de conglomerados
se identificó que las compañías, atendiendo a los
stakeholders de su cadena de valor: suministro,
producción y distribución, están adoptando estrategias
de marketing de sostenibilidad (MS). Sin embargo,
la mayoría de ellas están en una etapa de adopción,
enfocando sus esfuerzos en implementar prácticas
de sostenibilidad en sus actividades de suministro y
producción dejando la distribución como un área de
oportunidad. Esta investigación se basa en empresas
de un país de economía emergente, contribuye como
una aproximación al fenómeno de sostenibilidad en
marketing con datos directos obtenidos de sus informes
publicados. Estudios futuros podrían comparar entre
empresas con países desarrollados y en desarrollo
Photopolymerization of ionic liquids in flexible microporous aramids for ion conductive solid polyelectrolytes
Get PDFThis work presents the preparation of novel solid polymer electrolytes based on flexible microporous aramids filled with photopolymerized ionic liquids and lithium salt. The materials combined a high ionic conductivity with the mechanical and thermal characteristics of the aramids, including also good flexibility and handleability. First, a simple casting process was followed to obtain microporous aramids with an interconnected channel morphology. In a second step, this channel structure was filled with a solution of non-commercial photopolymerizable ionic liquid, commercial ionic liquids and the lithium salt, followed by UV irradiation to obtain the conducting aramids. Ionic conductivity of the materials was studied at 25 °C, and also in the temperature range between −50 to 90 °C, together with SEM analyses of the filled porous structure and thermal properties, to fully characterize the photopolymerization process of the ionic liquids inside the porous structure. The materials showed high ionic conductivity values together with excellent thermal and mechanical properties, indicating their viability as flexible and thermally stable solid electrolytes.FEDER
(Fondo Europeo de Desarrollo Regional) and both the Spanish Ministerio
de Economía, Industria y Competitividad (MAT2017-84501-R and
MAT2017-88923-P), the Consejería de Educacion-Junta ´ de Castilla y
Leon ´ (BU306P18) and the Spanish Ministerio de Ciencia e Innovacion ´
(PID2019-108583RJ-I00/AEI/10.13039/501100011033)
“Un estado de la conciencia contemporánea”: género y moral en La sirena negra de Emilia Pardo Bazán
No full textDespite Emilia Pardo Bazán’s prominent feminism, La sirena negra has been
strangely overlooked by gender studies. When the novel was published in 1908,
Gómez de Baquero judged it “non feminist” due to its superficial heroines and the
centrality of its complex masculine characters. Academic studies of La sirena negra
have not refuted this idea, since they have elided gender approaches to focus on its
decadent aesthetics. This article argues, on the contrary, that the novel’s androcentrism
can be read as a Pardo Bazan’s strategy to appropriate the patriarchal discourse
and hold it responsible for national degeneration. Emilia Pardo Bazán was harshly
affected by the fin-de-siècle crisis. In her opinion, Spanish decay came from a lack
of solid morality. Thus, Catholic principles should be restored because they would
provide the autoregulation mechanisms to regenerate and reassemble the country.
Literature should show the new reality, and the French roman psychologique provided
her with an appropriate model. La sirena negra sets out the problem of the
moral anomie through its protagonist, Gaspar de Montenegro. The analysis of his
sexuality and gender performance reveals the danger of this amoral behavior for the
degeneration of society, attributed ultimately to the patriarchal order and the androcentric
discourse.Open Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature.Publicación en abierto financiada por el Consorcio de Bibliotecas Universitarias de Castilla y León (BUCLE), con cargo al Programa Operativo 2014ES16RFOP009 FEDER 2014-2020 DE CASTILLA Y LEÓN, Actuación:20007-CL - Apoyo Consorcio BUCL
Multiple reaction monitoring for identification and quantification of oligosaccharides in legumes using a triple quadrupole mass spectrometer
Get PDFRaffinose family oligosaccharides are non-digestible compounds considered as dietary prebiotics with health-related properties. Hence, it is important to develop highly specific methods for their determination. An analytical method is developed in this study for oligosaccharide identification and quantification using liquid chromatography-tandem mass spectrometry equipped with a triple quadrupole analyser operating in Multiple Reaction Monitoring mode. Raffinose, stachyose and verbascose are separated in a 10-minute run and the method is validated over a broad concentration range, showing good linearity, accuracy, precision and high sensitivity. A low-cost, short eco-friendly procedure for oligosaccharide extraction from legumes, with a high recovery rate extraction, good repeatability and reproducibility is also proposed. No plant-matrix effects were demonstrated. The method applied to the screening of 28 different legumes revealed species-related traits for oligosaccharide distribution, highlighting Pisum sativum (9.22 g/100 g) as the richest source of these prebiotics and its suitability as a functional food ingredient.Prieto-Santiago is a research assistant funded by Junta de Castilla y León (Spain) (Grant No. UBU-10-B)
Screening the biological properties of transition metal carbamates reveals gold(I) and silver(I) complexes as potent cytotoxic and antimicrobial agents
Get PDFWe report a screening study aimed to assess for the first time the air- and water-stability and the biological potential of simple metal-carbamates. These molecular metallic species are based on elements belonging to the groups 4–5, 7–9 and 11, and tin, and are easily available from inexpensive reagents. Complexes [Ag(O2CNEt2)] (13-Ag) and [Au(O2CNMe2)(PPh3)] (14-Au) resulted substantially stable in aqueous media and exhibited a potent in vitro cytotoxicity. Especially 13-Ag revealed a significant selectivity against the A549 lung adenocarcinoma and the A2780 ovarian cancer cell lines with respect to the noncancerous HEK293 cell line. Generation of ROS (reactive oxygen species) and mitochondrial membrane depolarization were recognized for 13-Ag and 14-Au; notwithstanding, the cell death mechanism is different in the two cases: apoptosis and cell cycle arrest in G0/G1 phase for 13-Ag; necroptosis and cell cycle arrest in S phase for 14-Au. Both 13-Ag and 14-Au are endowed with antibacterial activity, which is relatively stronger for 13-Ag towards Gram negative and for 14-Au towards Gram positive strains, respectively.La Caixa Foundation (LCF/PR/PR12/11070003), Consejería de Educación-Junta de Castilla y León-FEDER Funds (BU305P18), Ministerio de Ciencia, Innovación y Universidades (RTI2018-102040-B-100) and the University of Pisa (PRA_2020_39)