Recently added

MUEP ›Recent submissions

Utskrift från Malmö universitet - mau.se

MUEP: Recent submissions

Now showing items 6-10 of 23779

Playing Fingu - a follow-up qualitative study of an early interventi...
Wästerlid, Catarina : Malmö universitet/Lärande och samhälle (2018)	Master thesis (two year)

English abstract:

The aim of this master thesis was to explore what learning students developed in mathematics when using an interactive digital tool. The issue the study focused was what cardinality skills five-year-old students established when playing Fingu by investigating how they handled the critical aspects of cardinality. Research agrees that the ability to compose and decompose numbers in a flexible way is a basic mathematical competence and an important prerequisite for developing arithmetic skills (Anghileri, 2006; Locuniak & Jordan, 2008; Neuman, 1987; Nunes & Bryant, 2007). Another basic competence in developing counting skills is the ability to rapidly perceive the exact number of objects in a group instead of counting one-by-one (Clements & Sarama, 2014). Fingu, is a game where to two different sets of fruits are visable on a screen and the player are supposed to represent the total amount of fruits with an equal number of fingers by touching the screen. In total there are 60 different tasks with different configurations, combinations and different sums up to ten. In a research project between the university of Gothenburg and the University of Kristianstad, called Conditions and tools for development of arithmetic competencies (CoDAC), 112 students between five to eight years old participated in an intervention where they played Fingu regularly over an eight-week period. The results from the CoDAC-project showed that there was a small positive effect for all ages on a standardized test. Data base for this follow-up study was derived from the CoDAC project. The method used was mainly video-observations and the results were presented as case studies where students' changed ways of representing and transforming numbers were qualitatively analysed. Variation theory and Nunes & Bryants (2007) further development of Piagets theory of how children develop an understanding of cardinality was used for interpreting what learning in mathematics Fingu support and what cardinality skills five-year-old students established when playing Fingu. The results of the study showed that all students increased their understanding of the cardinal aspect of numbers but also that there was a variation in the skills that the students developed. Furthermore, it can be noted that the students' subitize competence were developed. The implication of this study is that it seems promising to use Fingu as an early intervention in pre- and primary school. The results are also consistent with previous findings that digital tools can have a positive effect even though the intervention is limited in time.

Fingu handledningsversion klart 20181030.pdf (489.8Kb)

Now showing items 6-10 of 23779

English abstract:	We report on the encapsulation of the antibiotic clofazimine (CLZ) within the pores of mesoporous silica particles having hydrophilic (CBET value of 137) and more hydrophobic (CBET value of 94 after calcination at 600 °C) surfaces. We studied the effect of pH on the released amount of CLZ in aqueous solutions and observed a maximum at pH 4.1 in correlation with the solubility of the drug. Less release of the drug was observed from the more hydrophobic particles which was attributed to a difference in the affinity of the drug to the carrier particles. Fluorescence lifetime imaging microscopy, emission spectra, and fluorescence lifetimes of single drug loaded particles provided detailed understanding and new knowledge of the physical form of the encapsulated drug and the distribution within the particles. The distribution of CLZ within the particles was independent of the surface chemistry of the particles. The confirmation of CLZ molecules as monomers or aggregates was revealed by controlled removal of the drug with solvent. Additionally, the observed optical "halo effect" in the fluorescent images was interpreted in terms of specific quenching of high concentration of molecules. The emission lifetime experiments suggest stronger interaction of CLZ with the more hydrophobic particles, which is relevant to its release. The results reported in this work demonstrate that tuning the hydrophilicity/hydrophobicity of mesoporous silica particles can be used as a tool to control the release without impacting their loading ability.
Note:	Phys Chem Chem Phys

Recently added

DSpace Repository

MUEP: Recent submissions

Search

Browse

All contents

My Account

Saving people: a comparative study of 2 European Search and Rescue Or...
Tatakis, Konstantinos : Malmö universitet/Kultur och samhälle (2018)	Master thesis (one year)

Belonging and popular culture The work of Chilean artist Ana Tijoux
Lindholm, Susan Journal article in InterDisciplines : Journal of History and Sociology;1 : Bielefeld Graduate School in History and Sociology (2018)	Journal article

Hip-hop feminism i USA och Sverige : en introduktion
Lindholm, Susan Eds: Holgersson, Ulrika; Tolvhed, Helena Book chapter in Plats för makt : en vänbok till Monika Edgren. : Makadam (2018)	Book chapter

Fluorescence imaging of antibiotic clofazimine encapsulated within me...
Angiolini, Lorenzo; Valetti, Sabrina; Cohen, Boiko; Feiler, Adam; Douhal, Abderrazzak Malmö University. Biofilms - Research Center for Biointerfaces Journal article in Physical chemistry chemical physics : PCCP;17 : Royal Society of Chemistry (2018)	Journal article