Search results for "Methods"
showing 10 items of 4526 documents
Measurement of the average shape of longitudinal profiles of cosmic-ray air showers at the Pierre Auger Observatory
2019
The profile of the longitudinal development of showers produced by ultra-high energy cosmic rays carries information related to the interaction properties of the primary particles with atmospheric nuclei. In this work, we present the first measurement of the average shower profile in traversed atmospheric depth at the Pierre Auger Observatory. The shapes of profiles are well reproduced by the Gaisser-Hillas parametrization within the range studied, for E>10 17.8 eV .A detailed analysis of the systematic uncertainties is performed using ten years of data and a full detector simulation. The average shape is quantified using two variables related to the width and asymmetry of the profile, and …
Ethyl hexanoate transfer in paper and plastic food packaging by sorption and permeation experiments
2008
The barrier properties of one treated paper packaging and one standard plastic film (bi-oriented polypropylene, biOPP) were assessed for ethyl hexanoate. Three methods based either on sorption (gravimetry and micro-atmosphere-derived method) or permeation kinetic determination were used in controlled conditions of aroma vapor concentration (107 Pa), temperature (25 degrees C) and relative humidity (about 0 %). Ethyl hexanoate solubility values were on the same range of magnitude for both packaging films in spite of their different nature and composition. Ethyl hexanoate affinity for both films was well predicted by their respective solubility parameters. Solubility values were different acc…
ADI schemes for valuing European options under the Bates model
2018
This paper is concerned with the adaptation of alternating direction implicit (ADI) time discretization schemes for the numerical solution of partial integro-differential equations (PIDEs) with application to the Bates model in finance. Three different adaptations are formulated and their (von Neumann) stability is analyzed. Ample numerical experiments are provided for the Bates PIDE, illustrating the actual stability and convergence behaviour of the three adaptations. peerReviewed
Roll-with-Participation. Il caso di ProMondello a Palermo
2018
This contribution is based on an ongoing experience in Palermo: a participatory process (ProMondello) aimed at producing a master plan. The specificity of ProMondello stems from the fact that the promoters of the process are neither social communities nor local administrations, which so far have only arranged highly questionable and easily exploitable processes. ProMondello is organised by a private stakeholder, the Italo-Belgian Real Estate Company, which has been managing a beach concession for about a century. The case raises several questions: can we have true participation along with such obvious economic interests? What can ensure that citizens’ opinions are not instrumentally used? T…
The inspiration in improvisation : identifying and classifying the approaches to emotion-based musical improvisation
2016
The purpose of this study was to identify the naturally occurring approaches that musicians use to improvise and to analyse the relationships between the approach used, the improviser’s musical experience, and the quality of the resulting improvisation. 16 participants took part in three group improvisation and discussion sessions, and the improvisations of the final session (80 in total) were recorded and rated by experts on emotions- and quality-related aspects. The approaches mentioned by participants in the final session were organised into five distinct categories: technical, musical inspiration, nuanced emotion, visualized scene, and personal experience. Significant negative correlati…
Eight Hypotheses on Technology Use and Psychosocial Wellbeing: A Bicultural Phenomenological Study of Gaming during the COVID-19 Pandemic
2022
AbstractIn this nonconfirmatory qualitative study, we pursued a range of hypotheses regarding how gaming operates in the lives and psychosocial wellbeing of those who actively play videogames during a crisis, such as the COVID-19 pandemic in 2020. Informed by an explorative survey (N = 793), interpretive phenomenological analysis was applied to interview data from actively gaming Chinese (n = 10) and Finnish (n = 10) participants. Our findings demonstrate how the general increase of pandemic-time gaming did not manifest in all player groups, but in some life contexts gaming activity rather decreased along with reformations in subjective meaning hierarchies and values. Ultimately, eight subo…
The lived experience of rescuing people who have driven into floodwater: Understanding challenges and identifying areas for providing support.
2018
Background: Drowning is a major public health issue, with risk increasing during times of flood. Driving into floodwater is a major risk factor for flood-related drowning and injury, and despite widespread public health campaigns, many people continue to undertake this risky behaviour and require rescue. Purpose: We aimed to identify key challenges faced by emergency services personnel when rescuing those who have driven into floodwater, and to identify strategies for supporting rescuers in this important role. Methods: Australian flood rescue operators (N = 8) who had previously rescued a driver who had driven into floodwater participated in semi-structured interviews. Data were analysed u…
The lived experience of rescuing people who have driven into floodwater : understanding challenges and identifying areas for providing support
2019
Background Drowning is a major public health issue, with risk increasing during times of flood. Driving into floodwater is a major risk factor for flood‐related drowning and injury, and despite widespread public health campaigns, many people continue to undertake this risky behaviour and require rescue. Purpose We aimed to identify key challenges faced by emergency services personnel when rescuing those who have driven into floodwater, and to identify strategies for supporting rescuers in this important role. Methods Australian flood rescue operators (N = 8) who had previously rescued a driver who had driven into floodwater participated in semi‐structured interviews. Data were analysed usin…
Problematising the equivalence of the test results of performance-based critical thinking tests for undergraduate students
2015
Abstract This article compares the test results of two different performance-based assessments of critical thinking: a constructed-response task from the Collegiate Learning Assessment (CLA) and a multiple-choice questionnaire (MCQ). These tests ostensibly measure the same critical thinking skills, such as analysing, interpreting and evaluating information and problem solving. The study utilised a mixed-method approach to explore the differences in students’ ( n = 330) test scores. The results showed that the correspondence between the CLA and the MCQ was fully comparable in 45.5% of the students’ test performances. Ten percent of the students had completely opposite test results. Explanat…
Grammar teaching methods in an EFL lesson
2013
Kieliopilla on keskeinen asema englantia vieraana kielenä opiskeltaessa ja rakenteiden tuntemus on osa vieraiden kielten opetussuunnitelmaa. Menetelmät, joilla kielioppia opetetaan, ovat laajalti opettajien itse päätettävissä ja opetusmenetelmien kirjo on valtava. Opetus voi olla hyvinkin opettajakeskeistä ja tyyliltään luennoivaa tai puolestaan hyvin toiminnallista ja oppilaslähtöistä sekä kaikkea tältä väliltä. Tämä tutkielma toteutettiin kuvailevana tapaustutkimuksena, johon osallistui yksi englantia vieraana kielenä opettava alakoulun opettaja sekä hänen oppitunnillaan olleet 14 oppilasta. Tutkielman aihe oli kieliopin opetusmenetelmät, joten huomio keskittyi opettajaan, ei oppilaisiin.…