Search results for "CLU"

Service-learning in physical education teacher education: towards a critical and inclusive perspective

2020

The purpose of this study was to analyse the impact of service-learning (SL) in physical education teacher education students (PETEs). The PETEs (n = 169) completed one of the editions of a SL program carried out between 2015–2018. This program consisted of designing and leading motor game sessions to facilitate the inclusion of 116 children with special educational needs (SEN). The program was based on Kolb’s learning stages to promote reflection and critical thinking. Reflective journals were used as an instrument to gather information from their experiences. These data were analysed qualitatively through a multiphase approach, initial open-coding and axial coding, using NVivo (10) softwa…

Intelligent solutions for real-life data-driven applications

2017

The subject of this thesis belongs to the topic of machine learning or, specifically, to the development of advanced methods for regression analysis, clustering, and anomaly detection. Industry is constantly seeking improved production practices and minimized production time and costs. In connection to this, several industrial case studies are presented in which mathematical models for predicting paper quality were proposed. The most important variables for the prediction models are selected based on information-theoretic measures and regression trees approach. The rest of the original papers are devoted to unsupervised machine learning. The main focus is developing advanced spectral cluster…

Pd2Au36(SR)(24) cluster: structure studies

2015

The location of the Pd atoms in Pd2Au36(SC2H4Ph)(24), is studied both experimentally and theoretically. X-ray photoelectron spectroscopy (XPS) indicates oxidized Pd atoms. Palladium K-edge extended X-ray absorption fine-structure (EXAFS) data clearly show Pd-S bonds, which is supported by far infrared spectroscopy and by comparing theoretical EXAFS spectra in R space and circular dichroism spectra of the staple, surface and core doped structures with experimental spectra.

Realization of time-resolved two-vacuum-ultraviolet-photon ionization

2009

International audience; Ultrafast dynamics of excited molecules is studied through time-resolved two-vacuum-ultraviolet (vuv)- photon ionization using a nonlinear volume autocorrelator unit. The two-vuv-photon process is induced by the intense fifth harmonic radiation of a femtosecond Ti:sapphire laser. In a proof-of-principle experiment, ultrafast dynamics of excited ethylene and oxygen molecules are investigated. Molecular decay times are deduced by comparing the experimental data with the results of a numerical model that accounts for the spatial and temporal characteristics of the harmonic field. The present experiments pave a convenient way for time domain investigations in the vuv-xuv s…

Electronic and vibrational spectroscopic studies of gold-nanoclusters

2016

Gold nanoclusters are a peculiar new material with properties between that of bulk metal and single atoms. They show size-dependent evolution of optical and electronic properties sensitive to the change of single atom or single electron in the system. Understanding the relationship between structure and properties is important to both fundamental scientific question of the role of the quantum size effects in small metal-clusters, and to application of nanoclusters in e.g. photonics, nanoelectronics, and heterogeneous catalysis. In this thesis four spectroscopic studies of monolayer-protected gold-nanoclusters are presented. The optical gap of the Au144(PET)60 and (Au/Ag)144(PET)60 (PET: pheny…

“Debašu kluba” projekts skolēnu debatēšanas prasmju pilnveidei angļu valodā vidusskolā

2021

Izglītības procesa dažādošanai un daudzveidīgu mācību metožu realizēšanai, skolotājiem gan mācību plānā, gan ārpus klašu nodarbībās ir jāiekļauj plaša spektra aktivitātes. Pieredze norāda, ka runas prasmes ir viens no svarīgākajiem valodas aspektiem, kura mācīšana jāiekļauj Angļu kā svešvalodas stundās. Ņemot vērā, ka laikā, kad tiek izstrādāts šis diplomdarbs, Latvijā tiek realizēta izglītības sistēmas reforma, tāpēc skolēnu individuālās prezentēšanas, argumentēšanas un publiskās runas spējas ir īpaši aktuālas ik vienam angļu valodas skolotājam. Visas šīs prasmes ir iespējams apvienot un attīstīt, izmantojot apvienojošu mācību metodi: debatēšanu. Šī diplomdarba mērķis ir izpētīt, kā debašu…

Photodynamics studies of ligand-protected gold nanoclusters by using ultrafast transient infrared spectroscopy

2015

Highly monodisperse samples of three ligand-protected gold nanoclusters Au102(pMBA)44, Au144(SC2H4Ph)60, and a cluster tentatively identified as Au130(pMBA)50, were characterized by UV/vis and infrared spectroscopy, and their photodynamics was studied by transient absorption spectroscopy. The dynamics study for each cluster was performed by electronically exciting the cluster with a pump pulse in the visible or near infrared region and by monitoring the transient absorption of vibrational modes of the ligands with a mid-IR probe pulse. The photodynamics studies were used to determine the molecular or metallic behavior of the cluster, and also to gain important size dependent information abo…

An Examination of Tourist Arrivals Dynamics Using Short-Term Time Series Data: A Space—Time Cluster Approach

2013

The purpose of this study is to examine the development of Italian tourist areas ( circoscrizioni turistiche) through a cluster analysis of short time series. The technique is an adaptation of the functional data analysis approach developed by Abraham et al (2003), which combines spline interpolation with k-means clustering. The findings indicate the presence of two patterns (increasing and stable) averagely characterizing groups of territories. Moreover, tests of spatial contiguity suggest the presence of ‘space–time clusters’; that is, areas in the same ‘time cluster’ are also spatially contiguous. These findings appear to be more robust in particular for those series characterized by an…

Sports Club for Health : updated guidelines for health-enhancing sports activities in a club setting

2017

Sport organizations and crime: indissoluble binomial? A sociological and economic analysis for possible solutions

2011

The fundamental principles which should guide the activities of football teams are contaminated by criminal phenomena that produce, as the main effect, the loss of confidence from the fans. The reasons of the crisis of credibility in the sports organizations are both economic and social. This seems paradoxical in light of the circumstances under which: under the social profile has demonstrated a negative correlation between sport and widespread crime; under economic profile, the soccer is the one sport that is characterized by consistent and staggering increases in turnover. Modern society facilitates the scenario described above, because it is fragmented and characterized by dynamic proces…