@inproceedings{57895, abstract = {{In our paper, we present a study in which we investigate which strategies pre-service teachers (PSTs) use to find and, if necessary, reject possible candidates for congruence theorems for quadrilaterals. This study was conducted before the PTSs attended a university geometry course. In this way, statements about learning prerequisites can be made. For the study, we analyzed group discussions of PSTs to identify typical approaches and evaluate them from a mathematical perspective. The results can be considered for the further development of courses for PSTs and generate hypotheses for further research.}}, author = {{Hoffmann, Max and Schlüter, Sarah}}, booktitle = {{Proceedings of the Fifth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2024, 10-14 June 2024)}}, editor = {{González-Martín, Alejandro S. and Gueudet, Ghislaine and Florensa, Ignasi and Lombard, Nathan}}, keywords = {{Teachers’ and students’ practices at university level, Transition to, across and from university mathematics, Teaching and learning of specific topics in university mathematics, Congruence, Quadrilaterals}}, publisher = {{Escola Univerist`aria Salesiana de Sarri`a – Univ. Aut`onoma de Barcelona and INDRUM}}, title = {{{How Do Advanced Pre-Service Teachers Develop Congruence Theorems for Quadrilaterals?}}}, year = {{2024}}, } @inproceedings{31849, author = {{Hoffmann, Max and Biehler, Rolf}}, booktitle = {{Proceedings of the Fourth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2022, 19-22 October 2022)}}, editor = {{Trigueros, Marı́a and Barquero, Berta and Hochmuth, Reinhard and Peters, Jana}}, keywords = {{Teaching and learning of specific topics in university mathematics, Transition to, across and from university mathematics, Student Teachers, Geometry, Congruence, Double Discontinuity.}}, publisher = {{University of Hannover and INDRUM.}}, title = {{{Student Teachers ’ Knowledge of Congruence before a University Course on Geometry}}}, year = {{2023}}, } @article{46765, abstract = {{Über zwei Drittel der Anfänger*innen im Übergangssystem verfügen maximal über einen Hauptschul-/Mittelschulabschluss. Sie sind damit überrepräsentiert, was sich weniger durch ihre Kompetenzen als mit ihrem sozioökonomischen Status und klassenspezifischen Nachqualifizierungsverhalten erklären lässt.}}, author = {{Sommer, Christian}}, issn = {{00059536}}, journal = {{Berufsbildung. Zeitschrift für Theorie-Praxis-Dialog}}, keywords = {{Social inequality, Transition system}}, pages = {{9--13}}, publisher = {{wbv}}, title = {{{Der Hauptschulabschluss als sozial selektiver Hauptzulieferer des Übergangssystems}}}, doi = {{10.3278/BB2303W}}, volume = {{199}}, year = {{2023}}, } @inproceedings{8575, abstract = {{The transition from high school to university mathematics has proven to be difficult for many students but especially for pre-service secondary teachers. To support these students at mastering this transition, various universities have introduced support measures of various kinds. The WiGeMath project developed a taxonomy that makes it possible to describe and compare these measures concerning their goals as well as their frame characteristics. We will exemplify the use of the taxonomy in the description of one specific innovative measure that was part of the WiGeMath evaluations. Moreover, we will present first results concerning the goal-fulfilment of this measure concerning affective characteristics of the student cohort and their predominant beliefs.}}, author = {{Kuklinski, Christiane and Leis, Elena and Liebendörfer, Michael and Hochmuth, Reinhard and Biehler, Rolf and Lankeit, Elisa and Neuhaus, Silke and Schaper, Niclas and Schürmann, Mirko}}, booktitle = {{Proceedings of the Second Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2018, 5-7 April 2018)}}, editor = {{Durand-Guerrier, V. and Hochmuth, R. and Goodchild, S. and Hogstad, N.M.}}, keywords = {{Beliefs., Motivational developments, Novel approaches to teaching, Teacher education, Transition to and across university mathematics}}, pages = {{527--536}}, publisher = {{INDRUM Network, University of Agder}}, title = {{{Evaluating Innovative Measures in University Mathematics – The Case of Affective Outcomes in a Lecture focused on Problem-Solving}}}, year = {{2018}}, } @article{4420, abstract = {{Students' experiences of their first year of studying are of prime importance for their further development in Higher Education (HE). Consequently, the first year and the related phenomena of student performance, retention, and dropout have been extensively studied. Research shows that during the first year, the individual student's ability or failure to adapt to the new socio-cultural environment influences his/her academic success. Yet, surprisingly little is known about the actual processes through which students integrate into the socio-cultural context of HE. Applying a socio-cultural approach, our qualitative interview study followed 14 university students through their first year, investigating why some students experience an easier transition into HE compared to others. Our research results in a typology of four transition types characterized by their orientation towards the socio-cultural context of studying.}}, author = {{Jenert, Tobias and Brahm, Taiga and Gommers, Luci and Kühner , Patrizia}}, journal = {{Learning, Culture and Social Interaction}}, keywords = {{Student transition, Enculturation, Dropout, Retention}}, number = {{87-99}}, pages = {{87--99}}, publisher = {{Elsevier}}, title = {{{How do they find their place? A typology of students' enculturation during the first year at a business school}}}, volume = {{12}}, year = {{2017}}, } @article{13238, abstract = {{A numerically efficient yet highly accurate implementation of the crystal orbital Hamilton population (COHP) scheme for plane-wave calculations is presented. It is based on the projector-augmented wave (PAW) formalism in combination with norm-conserving pseudopotentials and allows to extract chemical interactions between atoms from band-structure calculations even for large and complex systems. The potential of the present COHP implementation is demonstrated by an in-depth analysis of the intensively investigated metal-insulator transition in atomic-scale indium wires self-assembled on the Si(111) surface. Thereby bond formation between In atoms of adjacent zigzag chains is found to be instrumental for the phase change. © 2017 Wiley Periodicals, Inc.}}, author = {{Lücke, Andreas and Gerstmann, Uwe and Kühne, Thomas D. and Schmidt, Wolf G.}}, journal = {{Journal of Computational Chemistry}}, keywords = {{density functional theory, bonding, crystal orbital Hamilton population, indium nanowires, phase transition}}, number = {{26}}, pages = {{2276--2282}}, title = {{{Efficient PAW-based bond strength analysis for understanding the In/Si(111)(8 × 2) – (4 × 1) phase transition}}}, doi = {{10.1002/jcc.24878}}, volume = {{38}}, year = {{2017}}, } @article{64053, abstract = {{The utilization and preparation of functional hybrid films for optical sensing applications and membranes is of utmost importance. In this work, we report the convenient and scalable preparation of self-crosslinking particle-based films derived by directed self-assembly of alkoxysilane-based cross-linkers as part of a core-shell particle architecture. The synthesis of well-designed monodisperse core-shell particles by emulsion polymerization is the basic prerequisite for subsequent particle processing via the melt-shear organization technique. In more detail, the core particles consist of polystyrene (PS) or poly(methyl methacrylate) (PMMA), while the comparably soft particle shell consists of poly(ethyl acrylate) (PEA) and different alkoxysilane-based poly(methacrylate)s. For hybrid film formation and convenient self-cross-linking, different alkyl groups at the siloxane moieties were investigated in detail by solid-state Magic-Angle Spinning Nuclear Magnetic Resonance (MAS, NMR) spectroscopy revealing different crosslinking capabilities, which strongly influence the properties of the core or shell particle films with respect to transparency and iridescent reflection colors. Furthermore, solid-state NMR spectroscopy and investigation of the thermal properties by differential scanning calorimetry (DSC) measurements allow for insights into the cross-linking capabilities prior to and after synthesis, as well as after the thermally and pressure-induced processing steps. Subsequently, free-standing and self-crosslinked particle-based films featuring excellent particle order are obtained by application of the melt-shear organization technique, as shown by microscopy (TEM, SEM).}}, author = {{Vowinkel, S. and Paul, S. and Gutmann, Torsten and Gallei, M.}}, issn = {{2079-4991}}, journal = {{Nanomaterials}}, keywords = {{Materials Science, Science & Technology - Other Topics, solid-state nmr, spectroscopy, catalysts, colloidal crystals, colloids, cross-linking, elastomeric opal films, emulsion polymerization, gamma-methacryloxypropyltrimethoxysilane, hybrid films, melt-shear organization, nanoparticles, particle, photons, polymers, processing, self-assembly, transition}}, number = {{11}}, pages = {{390}}, title = {{{Free-Standing and Self-Crosslinkable Hybrid Films by Core-Shell Particle Design and Processing}}}, doi = {{10.3390/nano7110390}}, volume = {{7}}, year = {{2017}}, } @article{4421, abstract = {{In Switzerland, every student graduating from grammar school can begin to study at a university. This leads to high dropout rates. Although students’ motivation is considered a strong predictor of performance, the development of motivation during students’ transition from high school to university has rarely been investigated. Additionally, little is known about the relation of motivational aspects with other influences on study performance. The present longitudinal study addresses this research gap and examines the development of economics and management students’ study motivation. It encompasses four waves of data collected throughout the first year, using quantitative online surveys. In total, the sample consists of 820 students. Data is analysed using latent change modelling. Results indicate that students start at a higher level of intrinsic motivation compared to extrinsic motivation. The variability of the starting value of the two constructs is also differing. The analysis also shows a gradual decline in students’ motivation. Above all, the transition from secondary to higher education seems to be a driver for this decline.}}, author = {{Brahm, Taiga and Jenert, Tobias and Wagner, Dietrich}}, issn = {{0018-1560}}, journal = {{Higher Education}}, keywords = {{Transition to higher education, Motivation, Longitudinal study, Socio-cultural factors, Latent change model, Switzerland}}, number = {{3}}, pages = {{459--478}}, publisher = {{Springer Nature}}, title = {{{The crucial first year: a longitudinal study of students’ motivational development at a Swiss Business School}}}, doi = {{10.1007/s10734-016-0095-8}}, volume = {{73}}, year = {{2016}}, } @article{58528, author = {{Jansen, Gunther and Crummenerl, Lena Luise and Gilbert, Felix and Mohr, Timm and Pfefferkorn, Roxana and Thänert, Robert and Rosenstiel, Philip and Schulenburg, Hinrich}}, journal = {{Molecular Biology and Evolution}}, keywords = {{symbiosis, experimental evolution, Pseudomonas, immunocompromised, evolutionary transition, commensalism, global regulator, lasR}}, number = {{11}}, pages = {{2883--2896}}, title = {{{Evolutionary Transition from Pathogenicity to Commensalism: Global Regulator Mutations Mediate Fitness Gains through Virulence Attenuation}}}, doi = {{10.1093/molbev/msv160}}, volume = {{32}}, year = {{2015}}, } @inbook{34448, abstract = {{We present a rigorous but transparent semantic definition for VHDL corresponding to the IEEE VHDL’ 93 standard [68, 9, 84]. Our definition covers the full behavior of signal and variable assignments as well as the behavior of the various wait statements including delta, time, and postponed cycles. We consider explicitly declared signals, ports, local variables, and shared variables. Our specification defines an abstract VHDL ’ 93 interpreter in the form of transition rules for an evolving algebra machine (EA-Machine) [60]. It faithfully reflects and supports the view of simulation given in the IEEE VHDL ’ 93 standard language reference manual. The definition can be understood without any prior formal training. We illustrate our definition by running the example VHDL program set out in the Introduction to this volume.}}, author = {{Börger, Egon and Glässer, Uwe and Müller, Wolfgang}}, booktitle = {{Semantics of VHDL}}, editor = {{Delgado Kloos, C. and Breuer, Peter T.}}, isbn = {{978-1-4615-2237-9}}, keywords = {{Transition Rule Formal Verification Variable Assignment Kernel Process Simulation Cycle}}, pages = {{107 -- 139}}, publisher = {{Kluwer Academic Publishers}}, title = {{{A Formal Definition of an Abstract VHDL'93 Simulator by EA-Machines}}}, doi = {{10.1007/978-1-4615-2237-9_5}}, year = {{1995}}, }