scholarly journals Beyond categories: dynamic qualitative analysis of visuospatial representation in arithmetic

2022 ◽  
Author(s):  
Carla Finesilver
Keyword(s):  
Mathematics Education ◽  
Computer Graphics ◽  
Qualitative Analysis ◽  
Methodological Approach ◽  
Ethical Implications ◽  
Concrete Manipulatives ◽  
Flexible Framework ◽  
Changes Over Time ◽  
Visuospatial Representation ◽  
Over Time

AbstractVisuospatial representations of numbers and their relationships are widely used in mathematics education. These include drawn images, models constructed with concrete manipulatives, enactive/embodied forms, computer graphics, and more. This paper addresses the analytical limitations and ethical implications of methodologies that use broad categorizations of representations and argues the benefits of dynamic qualitative analysis of arithmetical-representational strategy across multiple semi-independent aspects of display, calculation, and interaction. It proposes an alternative methodological approach combining the structured organization of classification with the detailed nuance of description and describes a systematic but flexible framework for analysing nonstandard visuospatial representations of early arithmetic. This approach is intended for use by researchers or practitioners, for interpretation of multimodal and nonstandard visuospatial representations, and for identification of small differences in learners’ developing arithmetical-representational strategies, including changes over time. Application is illustrated using selected data from a microanalytic study of struggling students’ multiplication and division in scenario tasks.

The face(t)s of biotech in the nineties: how the German press framed modern biotechnology

2002 ◽  
Vol 11 (2) ◽  
pp. 143-154 ◽  
Author(s):  
Matthias Kohring ◽  
Jörg Matthes
Keyword(s):  
Twentieth Century ◽  
Cluster Analysis ◽  
Methodological Approach ◽  
Theoretical Concept ◽  
German Press ◽  
The Face ◽  
The Media ◽  
Modern Biotechnology ◽  
Changes Over Time ◽  
Over Time

The following article deals with the different images of modern biotechnology created by the German press in the last decade of the twentieth century. To describe these images we have chosen the theoretical concept of framing, which in general denotes the idea that the media deal with certain issues in different ways and that therefore the coverage offers different perspectives to the reader. We understand a frame as a certain pattern of a text that is composed of several different text elements. We assume that some of these text elements group together systematically in a specific way, thereby forming a certain pattern that can be identified across several texts in a sample. These patterns we call frames. By means of cluster analysis we are able to identify not only predefined but also newly emerging frames and the way framing of an issue changes over time. This methodological approach allows us to give a dynamic overview of how the German press dealt with biotechnology in the early and late nineties.

scholarly journals Treatment goals and changes over time in older patients with non-curable cancer

2020 ◽  
Author(s):  
M. E. Stegmann ◽  
D. Brandenbarg ◽  
A. K. L. Reyners ◽  
W. H. van Geffen ◽  
T. J. N. Hiltermann ◽  
...  
Keyword(s):  
Qualitative Analysis ◽  
Life Events ◽  
Older Patients ◽  
Late Phase ◽  
Treatment Goals ◽  
Electronic Patient Records ◽  
Patient Goals ◽  
Changes Over Time ◽  
Over Time

Abstract Purpose To investigate the treatment goals of older patients with non-curable cancer, whether those goals changed over time, and if so, what triggered those changes. Methods We performed a descriptive and qualitative analysis using the Outcome Prioritization Tool (OPT) to assess patient goals across four conversations with general practitioners (GPs) over 6 months. Text entries from electronic patient records (hospital and general practice) were then analyzed qualitatively for this period. Results Of the 29 included patients, 10 (34%) rated extending life and 9 (31%) rated maintaining independence as their most important goals. Patients in the last year before death (late phase) prioritized extending life less often (3 patients; 21%) than those in the early phase (7 patients; 47%). Goals changed for 16 patients during follow-up (12 in the late phase). Qualitative analysis revealed three themes that explained the baseline OPT scores (prioritizing a specific goal, rating a goal as unimportant, and treatment choices related to goals). Another three themes related to changes in OPT scores (symptoms, disease course, and life events) and stability of OPT scores (stable situation, disease-unrelated motivation, and stability despite symptoms). Conclusion Patients most often prioritized extending life as the most important goal. However, priorities differed in the late phase of the disease, leading to changed goals. Triggers for change related to both the disease (e.g., symptoms and course) and to other life events. We therefore recommend that goals should be discussed repeatedly, especially near the end of life. Trial registration OPTion study: NTR5419

Doing and Seeing Things Differently: A 25-Year Retrospective of Mathematics Education Research on Learning

1994 ◽  
Vol 25 (6) ◽  
pp. 583-607
Author(s):  
Carolyn Kieran
Keyword(s):  
Education Research ◽  
Mathematics Education ◽  
Mathematics Education Research ◽  
Mathematical Learning ◽  
Ample Evidence ◽  
The Past ◽  
Look Back ◽  
Time Changes ◽  
Changes Over Time ◽  
Over Time

When we look back over the mathematics education research of the last 25 years as reflected in the pages of this journal and compare the per pectives of the past with those of the present, it is tempting to project onto the activities and intentions of the earlier researchers all of the notions that one finds in today's work. In fact. some current researchers seem quite prepared to argue that certain area of attention in mathematical learning. such as problem solving, constructivism, and individual differences, to name just a few, were with us even then and that nothing has changed very much. One could also say that we have always had teachers. studenrs, and mathematical content as well; but there is ample evidence to suggest that there have been changes over time, changes in the ways that we have researched not only these three general didactical components and the interactions among them but also particular areas such a those others referred to above. Some of these innovations have been quite subtle, others more pronounced. In the main, researchers today are looking at aspects of mathematical learning in ways that were, if not unthought of, at least not common 25 years ago.

Comparison of two devices for measuring exercise transcutaneous oxygen pressures in patients with claudication

VASA ◽  
2015 ◽  
Vol 44 (5) ◽  
pp. 355-362 ◽  
Author(s):  
Marie Urban ◽  
Alban Fouasson-Chailloux ◽  
Isabelle Signolet ◽  
Christophe Colas Ribas ◽  
Mathieu Feuilloy ◽  
...  
Keyword(s):  
Oxygen Pressure ◽  
Optical Sensors ◽  
Chemical Sensors ◽  
Transcutaneous Oxygen ◽  
Starting Values ◽  
Two Systems ◽  
Transcutaneous Oxygen Pressure ◽  
New Sensors ◽  
Changes Over Time ◽  
Over Time

Abstract. Summary: Background: We aimed at estimating the agreement between the Medicap® (photo-optical) and Radiometer® (electro-chemical) sensors during exercise transcutaneous oxygen pressure (tcpO2) tests. Our hypothesis was that although absolute starting values (tcpO2rest: mean over 2 minutes) might be different, tcpO2-changes over time and the minimal value of the decrease from rest of oxygen pressure (DROPmin) results at exercise shall be concordant between the two systems. Patients and methods: Forty seven patients with arterial claudication (65 + / - 7 years) performed a treadmill test with 5 probes each of the electro-chemical and photo-optical devices simultaneously, one of each system on the chest, on each buttock and on each calf. Results: Seventeen Medicap® probes disconnected during the tests. tcpO2rest and DROPmin values were higher with Medicap® than with Radiometer®, by 13.7 + / - 17.1 mm Hg and 3.4 + / - 11.7 mm Hg, respectively. Despite the differences in absolute starting values, changes over time were similar between the two systems. The concordance between the two systems was approximately 70 % for classification of test results from DROPmin. Conclusions: Photo-optical sensors are promising alternatives to electro-chemical sensors for exercise oximetry, provided that miniaturisation and weight reduction of the new sensors are possible.

Neuropsychological Symptoms in Posttraumatic Stress Disorder and Changes Over Time

2007 ◽  
Author(s):  
Miranda Olff ◽  
Mirjam Nijdam ◽  
Kristin Samuelson ◽  
Julia Golier ◽  
Mariel Meewisse ◽  
...  
Keyword(s):  
Posttraumatic Stress Disorder ◽  
Posttraumatic Stress ◽  
Stress Disorder ◽  
Neuropsychological Symptoms ◽  
Changes Over Time ◽  
Over Time

Changes Over Time in Adaptive Behavior Functioning of Twice-Exceptional Children

2010 ◽  
Author(s):  
Rebecca D. Stinson ◽  
Zachary Sussman ◽  
Megan Foley Nicpon ◽  
Allison L. Allmon ◽  
Courtney Cornick ◽  
...  
Keyword(s):  
Adaptive Behavior ◽  
Exceptional Children ◽  
Twice Exceptional ◽  
Changes Over Time ◽  
Over Time

Kategorisierung der Schädelform des Cavalier King Charles Spaniels

2019 ◽  
Vol 47 (02) ◽  
pp. 133-133
Keyword(s):  
Pilot Study ◽  
Cavalier King Charles Spaniel ◽  
Conformation Changes ◽  
Veterinary Record ◽  
Changes Over Time ◽  
Over Time

Knowler SP, Gillstedt L, Mitchell TJ et al. Pilot study of head conformation changes over time in the Cavalier King Charles spaniel breed. Veterinary Record 2019. doi:10.1136/vr.105135.

Sign in / Sign up

Export Citation Format

Share Document