Search results for "500"
showing 10 items of 3244 documents
The Presence of White Matter Lesions Is Associated With the Fibrosis Severity of Nonalcoholic Fatty Liver Disease
2016
Abstract We tested whether nonalcoholic fatty liver disease (NAFLD) and/or its histological severity are associated with vascular white matter lesions (WML) in patients with biopsy-proven NAFLD and in non-NAFLD controls. Data were recorded in 79 consecutive biopsy-proven NAFLD, and in 82 controls with normal ALT and no history of chronic liver diseases, without ultrasonographic evidence of steatosis and liver stiffness value 45 years (OR 3.09, 95% CI: 1.06–9.06, P = 0.03; and OR 11.1, 95% CI: 1.14–108.7, P = 0.03), and F2–F4 fibrosis (OR 3.36, 95% CI: 1.29–8.73, P = 0.01; and OR 5.34, 95% CI: 1.40–20.3, P = 0.01) were independently associated with WML (mostly of mild grade) by multivariate…
Low‐complexity detection for uplink massive MIMO SCMA systems
2020
Paid Open Access UNIT agreement
-Infinity robust controller design for the synchronization of master-slave chaotic systems with disturbance input
2012
Published version of an article from the journal: Modeling, Identification and Control. Also available from the publisher: http://dx.doi.org/10.4173/mic.2012.1.3 This paper is concerned with the robust control problems for the synchronization of master-slave chaotic systems with disturbance input. By constructing a series of Lyapunov functions, novel H1 robust syn- chronization controllers are designed, whose control regulation possess the characteristic of simpleness and explicitness. Finally, numerical simulations are provided to demonstrate the e ectiveness of the proposed techniques.
Mellom fragment og totalitet : en lesning av Øystein Lønns roman Hirtshals Hirtshals med spesielt fokus på form, erkjennelse og identitet
2006
Masteroppgave i Nordisk språk og litteratur 2006 - Høgskolen i Agder, Kristiansand Romanens fortelleteknikk er hovedfokus i kapittel 2. Her forsøker jeg å applisere erkjennelses- og identitesaspektet på tekstens formale dimensjon. I denne delen av oppgaven ser vi hvordan den impliserte forfatteren kompliserer forståelsesprosessen ved sin tilbaketrukkethet. Fortelleren medierer situasjoner nøytralt, uten ytterligere forklaringer og vurderinger. Resultatet er en diskurs som ligner på fotografienes virkelighetsgjengivelse og filmens montasjeteknikk, og den mosaikken teksten skaper tvinger leseren inn i en aktiv deltakelse fordi sammenhengen ikke ligger ferdig fortolket. Kapitlet viser hvordan …
L’intégration Monétaire de la Roumanie entre Couts et Bénéfices
2008
Il n’y a pas dans notre pays de stratégie qui concerne bien techniquement l’adoption de l’euro. Il s’imposerait d’essayer, quoiqu’il soit trèstéméraire, d’identifier le moment opportun pour l’introduction de l’euro. Ce n’est pas facile mais il faut s’y mettre puisqu’il s’agit de faire suivrel’évolution et l’identification des tendances d’intégration de la Roumanie dans la zone euro, de faire également attention aux modèles d’intégrationmonétaires développés en Europe et bien entendu de mettre en place des scénarios alternatives pour la Roumanie. Et tout cela tout en évaluant deprès les coûts et les bénéfices de l’adoption de l’euro car l’intégration monétaire de la Roumanie est bien importa…
En meningsfull tilnærming til logaritmer En designstudie om introduksjon av logaritmer gjennom repetert divisjon
2015
Masteroppgave matematikkdidaktikk- Universitetet i Agder, 2015 This study is about finding a more effective method of introducing logarithms. As part of my study, I developed a new teaching material. The definition of logarithms in the new material is based on repeated division in the same way powers can be viewed as repeated multiplication. I have formulated the following research questions: 1) What are the characteristics of an effective method of teaching logarithms with regard to conceptual understanding? 2) Is the method where students are being introduced to logarithms through repeated division better than through the definition the Norwegian teaching materials to the greatest extent …
Learning mathematics through mathematical modelling : a study of secondary school students in Nigeria
2014
Masteroppgave i matematikkdidaktikk – Universitetet i Agder 2014 The focus of this study is to investigate the impact that mathematical modelling activities may have in the learning process of mathematics amongst observed Nigerian secondary school students. I also wish to find out in what way mathematical modelling activities may help the observed Nigerian secondary school students to see the relevance of mathematics to real life. From a pedagogical perspective, I wish to examine if the application of modelling in the learning process of mathematics may be a vehicle for the enhancement and support of students' learning of mathematics as a subject. I started this thesis by looking at some pa…
Eberlein–Šmulian theorem and some of its applications
2014
Masteroppgave i matematikkdidaktikk – Universitetet i Agder 2014 The thesis is about Eberlein-Šmulian and some its applications. The goal is to investigate and explain different proofs of the Eberlein-Šmulian theorem. First we introduce the general theory of weak and weak* topology defined on a normed space X. Next we present the definition of a basis and a Schauder basis of a given Banach space. We give some examples and prove the main theorems which are needed to enjoy the proof of the Eberlein-Šmulian theorem given by Pelchynski in 1964. Also we present the proof given by Whitley in 1967. Next there is described the connection between the weak topology and the topology and the topology o…
Schauder bases and locally complemented subspaces of Banach spaces
2014
Masteroppgave i matematikkdidaktikk – Universitetet i Agder 2014 The thesis is about Schauder basis in infinite-dimensional Banach spaces and locally complemented subspaces. It starts with the notion of bases and it proves that it is equivalent with that of Schauder basis. It follows with some general theory about bases, and gives the notion of basic sequences and equivalence of bases. It proves that every Banach space has a basic sequence. Next it gives some general theory about unconditional basis. To give an other version of the definition of complemented subspaces, we present adjoint operators and projections. We prove that c0 is not complemented in l∞. The Principle of Local Reflexivit…
Laboratory mathematics: learning equations with a double-winch as a tool
2014
Masteroppgave i matematikkdidaktikk – Universitetet i Agder 2014 Many studies show that algebra is perceived by pupils as an abstract, difficult to understand subject with almost no connections to every-day reality. Therefore, the motivation for this research was to find out what helps to make the abstract topic of algebra more meaningful to pupils and how we can assist them in discovering that algebra can be useful for establishing connections between different variables. Using mechanical tools with pairs of weights that move with different velocities could be promising for instructional purposes. First of all, the different velocities of the weights make variables and their relationship t…