Search results for "ONCE"
showing 10 items of 4997 documents
Maltose-conjugated chitosans induce macroscopic gelation of pectin solutions at neutral pH
2014
Injectable polymer scaffolds are particularly attractive for guided tissue growth and drug/cell delivery with minimally invasive intervention. In the present work, "all-polymeric" gelling systems based on pectins and water-soluble maltose-conjugated chitosans (CM) have been developed. Maltose-conjugated chitosan has been synthesized at three different molar ratios, as evaluated by FITR analysis and fluorimetric titration. A thorough rheological characterization of the blends and their parent solutions has been performed. Macroscopic gelation has been achieved by mixing the high esterification degree pectins with CM at higher maltose grafted to chitosan contents. Gels form in a few minutes a…
Muscular Strength Imbalances Are not Associated with Skin Temperature Asymmetries in Soccer Players
2020
Although strength imbalances using isokinetic dynamometer have been examined for injury risk screening in soccer players, it is very expensive and time-consuming, making the evaluation of new methods appealing. The aim of the study was to analyze the agreement between muscular strength imbalances and skin temperature bilateral asymmetries as well as skin temperature differences in the hamstrings and quadriceps. The skin temperature of the anterior and posterior thigh of 59 healthy male soccer athletes was assessed at baseline using infrared thermography for the identification of hamstrings-quadriceps skin temperature differences and thermal asymmetries (>
La gestión en educación física. Dos modelos de gestión, el mismo individuo
2020
In the development of this writing, we intend to critically analyze the idea of management in Physical Education and problematize it with the issues of inclusion and inequality. To do this, first there is a brief etymological review of the concept of management, and then we analyze how Physical Education links management to economic and business Sciences. The analysis material used are books, manuals and articles on Physical Education management. From the analysis of this material, the second point of the work arises to explain two management models in Physical Education that we call: individual management and self-management. These models are presented as different and opposite, but in the…
Detecting Asset Misappropriation: Forensic Accounting
2021
The main task of the investigation of asset misappropriation is the correct classification of a crime: identification of the fact of misappropriation and determination of the amount of misappropriated assets. Specificity of asset diversity, asset accounting requirements, and a wide range of misappropriation opportunities require specialised knowledge in accounting and economics that investigators often lack. The aim of the study is to increase the knowledge of investigators in forensic accounting in order to increase effectiveness of investigations in detecting asset misappropriation. In this article, the authors, Latvian and Lithuanian accounting experts, talk about typologies of asset mis…
Evolución de las concepciones de los docentes sobre dualidad en la física cuántica
2021
Este estudio muestra los cambios de concepciones sobre el concepto de dualidad en física cuántica en un grupo de docentes, antes y después de un curso de capacitación. Se presentan diagramas de evolución como instrumento metodológico para analizar y visualizar resultados. Los diagramas de evolución muestran categorías iniciales y de llegada de las concepciones de los profesores, que participaron de una secuencia de enseñanza-aprendizaje basada en la discusión de los modelos clásicos de ondas y partículas, de sus límites de validez y de las contribuciones de cada uno al modelo actual de estructura de la materia, en que no se habla de ondas, ni partículas, sino de características diferentes a…
Enseñanza de las ciencias : revista de investigación y experiencias didácticas
2021
Nota: resumen tomado de la revista En este trabajo se describe el origen y evolución del significado de los conceptos de cantidad de sustancia y de mol considerando las contribuciones hechas por la Historia de la Química. Por otra parte, se plantea el serio desacuerdo que se presenta entre las ideas actuales de los profesores de Química en esos conceptos y las recomendaciones de la comunidad científica internacional. Se señalan las implicaciones didácticas que estas dificultades epistemológicas pueden tener para la enseñanza de la Química. Cataluña ESP
Studentu dziesmu un deju festivāls “Gaudeamus” dalībnieku atmiņās
2021
Izstādi “Studentu dziesmu un deju festivāls “Gaudeamus” dalībnieku atmiņās” veido bijušo un esošo Latvijas Universitātes pašdarbības kolektīvu dalībnieku fotogrāfijas no dažādiem svētkiem un ar svētkiem saistītām aktivitātēm – mēģinājumiem, svētku gājieniem un koncertiem. Tāpat izstādē iespējams iepazīties ar bijušā Deju folkloras kopas “Dandari” dalībnieka Aivara Narvaiša iespaidiem par “Gaudeamus” svētkiem, nelielu izstādē apskatāmo svētku vēsturi un interesantāko informāciju, kā arī festivāla “Gaudeamus” hronoloģiju.
Diseño y validación del instrumento para la evaluación de la competencia emocional en evaluación de sistemas
2019
Los profesionales de la educación manifiestan su interés por mejorar la calidad educativa de las instituciones mejorando así la educación. Por ello, se hace necesario contar con instrumentos validados que nos permitan obtener información para tomar decisiones con el fin de realizar cambios en el propio sistema. Nuestro objetivo dentro del modelo de evaluación de sistemas educativos que promueve la Cohesión Social es validar el instrumento sobre la dimensión de Competencia Emocional para los alumnos/as de primaria y secundaria (9 a 17 años). En la validación del instrumento, señalamos los elementos que pueden atentar contra la validez de la interpretación de los resultados del instrumento y …
'Rocking the boat' and 'putting spanners in the works': On different metaphorical conceptualizations of the European Union
2021
The article aims to analyze different metaphorical conceptualizations of the European Union in The Guardian discourse. The corpus of news texts subject to analysis comes from a manually compiled 930,000-word corpus of news articles, retrieved from The Guardian from May 2004 through December 2009. The analysis focuses on four most frequent metaphors identified in the corpus, namely, THE EU IS A HOUSE and THE EU IS AN ELITE CLUB, which are used in the context of the accession of new countries to the EU and the related problem of immigration, as well as THE EU IS A BOAT and THE EU IS A MACHINE, which are embedded in the context of internal EU tensions concerning home affairs. The analysis and …
Theoretical space-time modelling of the diffusion of raw materials and manufactured objects
2013
International audience; Workgroup 3 of ArchaeDyn II programme focuses its study on the diffusion systems of ancient products. In order to be able to structure data in GIS in an appropriate way, we propose a general theoretical modelling integrating the different components of the diffusion systems, and identifying their interactions and the factors affecting the location of products and their transfers. Three dimensions are considered: the Time, the Space and the Function of places. A product's pathway can be apprehended efficiently by distinguishing spatial entities as well as functional entities. This modelling highlights the fact that the approach through the simple notion of "site" is n…