Student failure: Disintegrated patterns of study strategies and perceptions of the learning environment

Data describing students' study orientations, in relation to their evaluations of courses and their preferences for different kinds of learning environment, are reanalysed in the light of recent suggestions that failing students perceive their learning context in atypical ways. Factor analysis and unfolding analysis demonstrate that failing students show inter-relationships between study orientations and preferences for learning environments which point to a disintegration of the coherent patterns previously reported in the full achievement range. The implications of such a disintegration of coherent patterns of perceptions are discussed in the light of case studies of individual students.     

A novel μ-fluidic whole blood coagulation assay based on Rayleigh surface-acoustic waves as a point-of-care method to detect anticoagulants

A universal coagulation test that reliably detects prolonged coagulation time in patients, irrespective of the anticoagulant administered, has not been available to date. An easily miniaturised, novel μ-fluidic universal coagulation test employing surface acoustic waves (SAW) is presented here. SAW was employed to instantly mix and recalcify 6 μl citrated whole blood and image correlation analysis was used to quantify clot formation kinetics. The detection of clinically relevant anticoagulant dosing with old anticoagulants (unfractionated heparin, argatroban) and new anticoagulants (dabigatran, rivaroxaban) has been tested and compared to standard plasma coagulation assays. The applicability of this novel method has been confirmed in a small patient population. Coagulation was dose-proportionally prolonged with heparin, argatroban, dabigatran, and rivaroxaban, comparable to standard tests. Aspirin and clopidogrel did not interfere with the SAW-induced clotting time (SAW-CT), whereas the strong GPIIb/IIIa-inhibitor abciximab did interfere. Preliminary clinical data prove the suitability of the SAW-CT in patients being treated with warfarin, rivaroxaban, or dabigatran. The system principally allows assessment of whole blood coagulation in humans in a point-of-care setting. This method could be used in stroke units, emergency vehicles, general and intensive care wards, as well as for laboratory and home testing of coagulation.     

Disseminating the Positively Aging® Teaching Materials: Results of a Controlled Trial

ABSTRACT

This study tested the effectiveness of 2 dissemination methods for the Positively Aging® teaching materials. In San Antonio, Texas, 4 middle schools participated in a 3-year controlled trial of dissemination via distance electronic support alone (control) compared to distance electronic support plus in-school support from study staff (intervention). Web site and classroom utilization of lessons were tracked. The results demonstrated that in-school staff support was necessary to disseminate these materials. Potential dissemination barriers included competition for instructional time with other curricula, teacher variability in teacher computer use, teacher and student turnover, and the effects of mandatory testing on the educational process.     

Old Symbols for New Journeys: Re-Imagining Transdisciplinary Collaboration for Learning and Transformative Practice in Education

Abstract

The community engagement project described in this article took the form of the re-invention and re-interpretation of a historic symbol (Diana the elephant) on the Potchefstroom Campus of North-West University (NWU), South Africa. In 2015, the Faculty of Education Sciences invited staff and students to reinterpret the elephant (a symbol of education, longevity, wisdom, care, stamina, memory) in a new and more multicultural, multilingual, inclusive and environmentally conscious South Africa. The participatory process described, and the related outcomes, involved learning by students and academics across disciplines (the conceptualisation, design, engineering and creation of the structure) and collaboration between academics, children and adults from the community, all with a strong servicelearning dimension in relation to teacher education.     

The scientometric world of Keith Pavitt: A tribute to his contributions to research policy and patent analysis

Keith Pavitt has made pioneering contributions to the study of science, technology and innovation. This paper aims to examine some of them on the basis of a bibliometric analysis of Keith Pavitt's work and the impact that he has had. First the paper follows how Pavitt's publication profile develops over time. Then we trace his most cited works and explore the sets of references in his papers. Author and journal co-citation maps illustrate the intellectual environment associated with Pavitt and the central role Research Policy played in this context. An analysis of the most frequently cited authors in Research Policy and Scientometrics underlines Keith Pavitt's role as both a shaper of, and a bridge between, science and technology policy and bibliometric analysis.