Browsing Scientific Publications in Mathematical Sciences by Issue Date
Now showing items 21-40 of 184
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Pedagogical criteria for successful use of wikis as collaborative writing tools in teacher education
(Journal article; Peer reviewed, 2012)Wiki is a Web 2.0 technology that potentially promotes collaborative writing, group discussion and interaction. However, little research has been done as to which criteria are suitable to address pedagogical issues that ... -
Professional mathematics teacher identity: analysis of reflective narratives from discourses and activities
(Journal article; Peer reviewed, 2012)This article focuses on the methodological use of reflective narratives from discourses and activities of an experienced primary teacher as evidence of her professional identity. The teacher’s reflective narratives emerge ... -
A three-dimensional study of the onset of convection in a horizontal, rectangular porous channel heated from below
(Journal article; Peer reviewed, 2012)The onset of convection is studied in a rectangular channel filled with a fluid saturated porous medium, bounded above and below by impermeable isothermal walls at unequal temperatures and laterally by partially conducting ... -
Mediated action in teachers’ discussions about mathematics tasks
(Journal article; Peer reviewed, 2012)This paper presents analyses of teachers’ discussions within mathematics teaching developmental research projects, taking mediation as the central construct. The relations in the so-called ‘didactic triangle’ form the basic ... -
Mapping properties for the Bargmann transform on modulation spaces
(Journal article; Peer reviewed, 2012)We investigate mapping properties for the Bargmann transform and prove that this transform is isometric and bijective from modulation spaces to convenient Banach spaces of analytic functions. We also present some consequences. ... -
Onset of convection in a porous rectangular channel with external heat transfer to upper and lower fluid environments
(Journal article; Peer reviewed, 2012)The conditions for the onset of convection in a horizontal rectangular channel filled with a fluid saturated porous medium are studied. The vertical sidewalls are assumed to be impermeable and adiabatic. The horizontal ... -
A critical view on temperature modelling for application in weather derivatives markets
(Journal article, 2012) -
Dynamics of a single species in a fluctuating environment under periodic yield harvesting
(Journal article; Peer reviewed, 2013)We discuss the effect of a periodic yield harvesting on a single species population whose dynamics in a fluctuating environment is described by the logistic differential equation with periodic coefficients. This problem ... -
Für die Ehre des menschlichen Geistes – Ein neuer Blick auf eine bekannte Kontroverse zwischen Fourier und Jacobi über die Rolle der Anwendungen der Mathematik
(Journal article; Peer reviewed, 2013) -
Oscillation results for second-order nonlinear neutral differential equations
(Journal article; Peer reviewed, 2013)We obtain several oscillation criteria for a class of second-order nonlinear neutral differential equations. New theorems extend a number of related results reported in the literature and can be used in cases where known ... -
Convective instability in a horizontal porous channel with permeable and conducting side boundaries
(Journal article; Peer reviewed, 2013)The stability analysis of the motionless state of a horizontal porous channel with rectangular cross-section and saturated by a fluid is developed. The heating from below is modelled by a uniform flux, while the top wall ... -
Effect of a finite external heat transfer coefficient on the Darcy-Benard instability in a vertical porous cylinder
(Journal article; Peer reviewed, 2013)The onset of thermal convection in a vertical porous cylinder is studied by considering the heating from below and the cooling from above as caused by external forced convection processes. These processes are parametrised ... -
„Die Gottesluft der freien Forschung“ – Jacobis Verhältnis zur französischen Mathematik aus politischer Sicht
(Journal article; Peer reviewed, 2013) -
An algorithm for discretization of real value attributes based on interval similarity
(Journal article; Peer reviewed, 2013)Discretization algorithm for real value attributes is of very important uses in many areas such as intelligence and machine learning. The algorithms related to Chi2 algorithm ( includes modified Chi2 algorithm and extended ... -
Critical alignment in inquiry-based practice in developing mathematics teaching
(Journal article; Peer reviewed, 2013)This paper reports a case study from a mathematics teaching developmental research project. The theoretical foundation for the research comprises communities of inquiry and critical alignment, with which the developmental ... -
Mathematical learning opportunities in kindergarten through the use of digital tools: Affordances and constraints
(Journal article; Peer reviewed, 2013)This study aims at scrutinising the mathematical learning opportunities of children engaging with digital tools and the emerging affordances and constraints faced in such settings. By adopting a sociocultural perspective ... -
Oscillation of second-order neutral differential equations
(Journal article; Peer reviewed, 2013)We study oscillatory behavior of a class of second-order neutral differential equations relating oscillation of these equations to existence of positive solutions to associated first-order functional differential inequalities. ... -
An interdisciplinary school project using a Nintendo Wii controller for measuring car speed
(Journal article, 2013) -
Swing options in commodity markets: A multidimensional Lévy diffusion model
(Journal article, 2014) -
Education students' use of collaborative writing tools in collectively reflective essay papers
(Journal article; Peer reviewed, 2014)Google Docs and EtherPad are Web 2.0 tools providing opportunity for multiple users to work online on the same document consecutively or simultaneously. Over the last few years a number of research papers on the use of ...