Search results for "primary [vertex]"
showing 10 items of 482 documents
Energy life-cycle approach in net zero energy buildings balance: operation and embodied energy of an Italian case study
2014
Abstract The paper starts from the results of one of the six case-studies of the SubTask B in the International Energy Agency joint Solar Heating and Cooling Task40 and Energy Conservation in Buildings and Community Systems Annex 52, whose purpose is to document state of the art and needs for current thermo-physical simulation tools in application to Net Zero Energy Buildings. The authors extend the Net Zero Energy Buildings (Net ZEB) methodological framework, introducing the life-cycle perspective in the energy balance and thus including the embodied energy of building and its components. The case study is an Italian building, tailored to be a Net ZEB, in which the magnitude of the deficit…
Concurrent optimization of size and switch-on priority of a multisource energy system for a commercial building application
2015
Abstract In recent years, the governments of most nations have pledged to (i) limit carbon dioxide emissions, (ii) reduce primary energy consumption by increasing production, distribution and end-use efficiency and (iii) increase the utilization of renewable energy sources. In general, these goals are pursued separately by law, by subsidizing renewable energy technologies, reducing the demand or using high efficiency technologies. In this context, multi-source systems for the fulfillment of energy demands are highly advantageous because they are based on different technologies which use renewable, partially renewable and fossil energy sources. However, the main issues of multi-source system…
The Development of Linguistic Competences for Employability: A Training Project for Teachers
2014
Abstract Employability is a new concept that has just appeared in the Spanish educational system. Its rising importance is due to European Union educational policies which aim to provide young people with training that enables them to take part successfully in the present and future working world. This paper argues for the need to develop employability from the very start of formal education, and within this, we highlight the importance of developing linguistic competence among pre-school and primary pupils as a key element for favouring employability. To be able to do so, the teaching staff must be trained using quality education to enable them to work effectively on this competence. In th…
Lost in Enthusiasm? An Elementary Qualitative Analysis of 44 Years of Research in Order to Show Why Even Today Educational Historiography is Not an U…
2021
The statement from this article that historical reflection remains essential in educational research will not be demonstrated by one or another theoretical reasoning, but by four illustrations taken from my 44-year-old research career in the history of education. Each one of these illustrations represents an important research line of my career. The first deals with the history of primary education (mainly in Belgium, but also elsewhere). It concentrates on the relationship between continuity and change within the educational practices, in general, and on the irony and immunisation of educational innovations, in particular. The second deals with the history of educational sciences from the …
Avances de investigación en educación matemática
2020
El fomento de la flexibilidad y adaptabilidad en resolución de problemas matemáticos favorece el desarrollo de la competencia matemática. En este estudio se describe y justifica el diseño de una secuencia de tareas de modelización que permite analizar la flexibilidad inter-tarea en los estudiantes. El objetivo central del estudio es analizar si los estudiantes son capaces de adaptar sus planes de resolución según aspectos relativos al contexto de la tarea, cambiando de estrategia de una tarea a otra, si estos aspectos varían. En el estudio han participado 110 estudiantes del grado de Maestro/a en Educación Primaria; los resultados permiten conocer en qué medida son flexibles los estudiantes…
Pharmacology in Estonia, Latvia and Lithuania: From historical roots to nowadays achievements.
2016
This Info article offers an overview on the main historical facts and the current perspectives of the scientific and educational competence in field of pharmacology in three European countries on Baltic sea East coast: Estonia, Latvia and Lithuania. The research areas have changed constantly due to economical and political reasons during the last 200 years and today do cover quite different pharmacological areas in each of Baltic countries and are recognized internationally. Today the main topics of studies in Estonia are the pharmacology of neurodegenerative diseases, mood disorders and brain plasticity; the role of mitochondria in neurodegenerative diseases, and the epigenetics of drug de…
Analysis of gender, age and disability representation in music education textbooks: A research update
2018
According to International and European Law, teachers are encouraged to analyse, challenge and to help to eliminate sexist stereotypes and distortions in curricular materials. We aimed to characterize and compare the efficacy of implementation of the gender equality-based approach in the Spanish educational system, through a content analysis of the illustrations in music education (ME) textbooks following a coding scheme constructed by the research team according to guidelines from previous studies about the depiction of women and girls in ME textbooks during two periods of Spanish democracy: before (1992–2005); and after (2006–2015). Our major findings were: (a) female characters were und…
A ATIVIDADE FÍSICA REPRESENTADA NOS LIVROS DIDÁTICOS DA EDUCAÇÃO FÍSICA NA EDUCAÇÃO PRIMÀRIA
2019
El objetivo de este estudio es analizar la representación de la actividad física que aparece en los libros de texto de Educación Física y su relación con los diferentes bloques de contenidos del área, en Educación Primaria. La muestra estuvo formada por un total de 3836 imágenes publicadas en 34 libros de texto pertenecientes a seis editoriales españolas, entre 2006 y 2013. La técnica de investigación fue el análisis de contenido mediante la herramienta SAIMEF. Para el análisis estadístico se utilizó el software SPSS 22.0. Los resultados muestran un claro predominio del bloque de contenidos de los “juegos y actividades deportivas”. Este desequilibrio en la representación de los bloques no r…
On thermoeconomics of energy systems at variable load conditions: integrated optimization of plant design and operation
2007
Abstract Thermoeconomics has been assuming a growing role among the disciplines oriented to the analysis of energy systems, its different methodologies allowing solution of problems in the fields of cost accounting, plant design optimisation and diagnostic of malfunctions. However, the thermoeconomic methodologies as such are particularly appropriate to analyse large industrial systems at steady or quasi-steady operation, but they can be hardly applied to small to medium scale units operating in unsteady conditions to cover a variable energy demand. In this paper, the fundamentals of thermoeconomics for systems operated at variable load are discussed, examining the cost formation process an…
Life cycle energy and environmental impacts of a solid oxide fuel cell micro-CHP system for residential application
2019
Abstract Fuel cells are considered one of the key technologies to reach the ambitious European goal of a low carbon economy, by reducing CO2 emissions and limiting the production of other pollutants. The manuscript presents an assessment of the life cycle energy and environmental performances of a solid oxide fuel cell system for household applications using primary data from the manufacturing phase and experimental data for the start-up and operation phases. The Life Cycle Assessment methodology is applied, based on a functional unit of 1 MJ of exergy and includes the life cycle steps from the raw materials extraction to the maintenance. The results show a particular relevance of the opera…