Search results for " Experimental"
showing 10 items of 3530 documents
‘School, family and then hockey!’ Coaches’ views on dual career in ice hockey
2017
Despite the extensive research into coaches’ roles in supporting athletic development and motivation for sport, few studies have examined coaches’ attitudes and practices towards athletes’ dual careers. The present study extends European research into athletes’ dual careers by examining Finnish ice hockey coaches’ attitudes and practices surrounding players’ education. Ten male coaches aged 27–52 participated in semi-structured interviews. The data were analysed with an existential-narrative theoretical framework and with thematic and structural narrative analysis. Three composite vignettes were created entitled ‘supporting athletic development and players in reaching their own goals’, ‘enj…
Experimental Analysis of the Thermal Performance of Wood Fiber Insulating Panels
2023
During the last decades, attention to energy and environmental problems has significantly grown, along with the development of international and national policies addressing sustainability issues. In the construction sector, one of the most widespread energy efficiency strategies consists of thermal insulation of buildings thanks to external insulating panels. Among these, wood fiber is an insulating material characterized by a natural, eco-sustainable and biodegradable structure, coming from the recycling of waste wood from sawmills. The present study aimed to characterize small test building insulated with wood fiber panels from the thermal point of view, comparing the results with those …
An original experimental approach to study the alteration and/or contamination of archaeological ceramics originated by seawater burial
2014
This paper deals with the proposal of an original experimental methodological approach specifically designed for appraising any compositional alteration and/or contamination of archaeological ceramics after the protracted contact with seawater. A series of ceramic test-pieces (briquettes and cylinders) were purposely manufactured by mixing selected calcareous or non-calcareous clays with different varieties of sieved sand temper. The aim was to reasonably simulate the ceramic pastes most frequently found in the shipwrecks recovered in the coastal areas of western Mediterranean. The used raw materials were previously characterized in terms of mineralogical and chemical composition (XRPD, XRF…
Measuring and Modelling Evaporation Losses from Wet Branches of Lemon Trees
2022
Evaporation losses of rainfall intercepted by canopies depend on many factors, including the temporal scale of observations. At the event scale, interception is a few millimetres, whereas at a larger temporal scale, the number of times that a canopy is filled by rainfall and then depleted can make the interception an important fraction of the rainfall depth. Recently, a simplified interception/evaporation model has been proposed, which considers a modified Merrian model to compute interception during wet spells and a simple power-law equation to model evaporation from wet canopy during dry spells. Modelling evaporation process at the sub hourly temporal scale required the two parameters of …
Educación artística : revista de investigación
2014
En este articulo mostramos como aprender, ensenar y comunicarnos a traves del arte, especialmente del arte contemporaneo en la formacion de profesionales de la educacion, nos lleva a concretar propuestas docentes creativas para que los profesionales de la educacion seamos capaces de imaginar formas distintas de ensenar y aprender. Nuestros anos de experiencia y de conocimiento sobre ella nos llevan a cuestionar: ?Por que en el mundo de la educacion estan tan arraigados algunos modelos docentes??Por que se habla tanto de la necesidad del cambio y cuesta tanto su implementacion y sobretodo su continuidad? Y por tanto ?de que manera podemos articular los espacios formativos para deconstruir y…
Students’ approaches to solving R-FCI tasks observed by eye-tracking method
2018
This study sought to assess the representational format of task options in the representational variant of the force concept Inventory (R-FCI) test, namely its impact on students’ problem-solving approaches. This was done with the help of eye-tracking equipment. 35 high-school students solved four tasks, mainly from the R-FCI test, which sought to assess the student’s understanding of Newton’s 1st and 2nd Law of Motion. As they were trying to solve the problems, their gazes were tracked by TobiiTX300. A comparison between students who provided the correct and incorrect answer was subsequently carried out. The correctly answering students very quickly found the correct solution both in verba…
Evaluación de estrategias terapéuticas basadas en sustancias antiinflamatorias y antioxidantes en retinosis pigmentaria
2020
La retinosis pigmentaria comprende un grupo de distrofias hereditarias de retina, caracterizadas por la pérdida progresiva e irreversible de la visión, debida a la muerte de las células fotorreceptoras. Se trata de una enfermedad rara, que constituye la principal causa genética de ceguera, con una prevalencia de un afectado por cada 4000 habitantes. Mientras que la degeneración retiniana empieza con la muerte de los bastones debida a mutaciones genéticas, la muerte de los conos parece ser consecuencia de un progresivo daño oxidativo, inflamación y desequilibrio metabólico, influenciado por la liberación de sustancias tóxicas por parte de los bastones y otras células del entorno. La muerte d…
Flavour release at the interfaces of stirred fruit yoghurt models
2006
Abstract Model matrices consisting of a pectin and a dairy gel were investigated to study the transfer of flavour compounds between the different phases of stirred fruit yoghurt. Using a full factorial experimental design, different parameters (storage temperature, initial flavour concentration in the pectin gel and fat content of the dairy gel) were studied. The kinetics of the migration of flavour compounds between the two gels were investigated using a novel SPME method, where a Carboxen/Polydimethylsiloxane fibre was directly inserted into the pectin gel. Flavour compounds were predominantly retained in the pectin gel and thus, the presence of fat in the dairy gel did not affect their t…
Antibacterial effect of a new haemostatic agent on oral microorganisms
2011
Objective: The purpose of this study was to determine the antibacterial effect of a newly developed haemostatic agent Ankaferd Blood Stopper® (ABS) and Ferric Sulphate (FS) on various oral microorganisms. Study design: Bacterial strains were freshly incubated in their specific broth media. For each of the strains, 3 wells per each agent, with a 5 mm diameter were made under aseptic conditions in the specific agar media. Then they were filled with a test agents or 0.2% chlorhexidine digluconate (CHX) (control group). After 24h and 48h incubation periods, inhibition zones were measured. Results: ABS showed antibacterial effect on all test microorganisms except Lactobacillus acidophilus and La…
Offensive Transitions in High-Performance Football: Differences Between UEFA Euro 2008 and UEFA Euro 2016
2019
[Abstract] Coaches, footballers and researchers agree that offensive transitions are one of the most important moments in football today. In a sport where defense over attack dominates, with low scores on the scoreboard, the importance of these actions from the offensive point of view becomes very important. Despite this, scientific literature is still very limited on this topic. Therefore, the objectives set out in the present investigation have been two: first, by means of a proportion analysis and the application of a chisquare test, it was intended to describe the possible differences between the offensive transitions made in the UEFA Euro 2008 and UEFA Euro 2016; then, through differen…