Fishing for answers: Couples living with dementia managing trouble with recollection

Dementia affects cognitive abilities in several ways, memory dysfunction being one of the most common symptoms. Not only does this have implications for the individual diagnosed with dementia, but also for the life shared with others. Spouses in couples share memories and experiences that make up an extensive common ground that constitutes the basis for their interaction. From video-recorded interviews with 12 couples in which one of the spouses is diagnosed with dementia, this study focuses on instances where the spouse with dementia is unable to recollect information that she is presupposed to know, so-called type-1 knowable. Conversation Analysis is used to analyze how the spouses in interaction manage this problem. Two conclusions are argued for: (a) different expectations of what is, or should be, in common ground may cause communicative problems and distress, and (b) spouses without dementia may use fishing techniques as a way of managing problems regarding recalling knowledge. These techniques do not necessarily enable the person with dementia to recall the information; on the contrary they may cause embarrassment for the person with dementia. By adopting a we-perspective approach to service provision, social workers can make a difference for couples and families living with dementia.     

When Teaching Makes a Difference: Developing science teachers’ pedagogical content knowledge through learning study

It is a common view that developing teachers’ competence to restructure or reframe their knowledge and beliefs is inevitably a complex challenge. This paper reports on a research project with the aim to develop science teachers’ pedagogical content knowledge (PCK) through their participation in a learning study. A learning study is a collegial process in which teachers work together with a researcher to explore their own teaching activities in order to identify what is critical for their students’ learning. During one semester, three secondary science teachers worked in a learning study together with a researcher in a cyclical process in order to create prerequisites and further identify conditions for students’ learning. During the learning study, data were collected from video-recorded lessons and stimulated recall sessions in which the teachers and the researcher reflected on the lessons to analyze their development of PCK, their students’ learning and the impact of that knowledge on their own teaching. The results provide an insight into how the teachers developed their self-understanding in which they questioned their own epistemological beliefs, aims and objectives of teaching and taken-for-granted assumptions about science teaching and learning. As such, the study provides an understanding of teacher professional learning through a careful investigation of how teachers’ PCK is enhanced through their participation in the learning study, and further, how students’ learning might be developed as a consequence.     

Hierarchical Clustering Using Non-Greedy Principal Direction Divisive Partitioning

We present a non-greedy version of the recently published Principal Direction Divisive Partitioning (PDDP) algorithm. The PDDP algorithm creates a hierarchical taxonomy of a data set by successively splitting the data into sub-clusters. At each level the cluster with largest variance is split by a hyper-plane orthogonal to its leading principal component. The PDDP algorithm is known to produce high quality clusters, especially when applied to high dimensional data, such as document-word feature matrices. It also scales well with both the size and the dimensionality of the data set. However, at each level only the locally optimal choice of spitting is considered. At a later stage this often leads to a non-optimal global partitioning of the data. The non-greedy version of the PDDP algorithm (NGPDDP) presented in this paper address this problem. At each level multiple alternative splitting strategies are considered. Results from applying the algorithm to generated and real data (feature vectors from sets of text documents) are presented. The results show substantial improvements in the cluster quality.     

玄参科Cochlidiosperma Reichenb.属的恢复及其孢粉学证据

  The pollen grains of Cochlidiosperma (Veronica)  hederifolia and  C.  (Veronica) cymbalaria were examined under SEM and TEM. They differ vastly from those of all the others in Veronica (sensu Elenevskij, 1977, 1978).  The taxonomic relationship be- tween the group and the other Veronica spp. is discussed with respect to both gross morphology and pollen characters.  Justification for the restoration of the genus as a valid taxon is argued and, finally, a number of new combinations are proposed.       The group under consideration was sometimes treated as a separate  genus but more often given different ranks in the genus Veronica, which has been a controversial group as to its concept and subdivision.  No detail discussion has been made before on the relationship between the group and Veronica.  Main purpose of the present mork is to examine pollen morphology and gross morphology of the group and to discussits relationship with Veronica.     

University–school collaboration based on complementary needs

This paper discusses school development as collaboration between local schools and universities based on complementary needs. I examine a 10 year case study of a long-term relationship between an elementary school and a university in a town in Sweden. The relationship is jointly constructed and mediated by local, national, and international projects. Such jointly constructed and shared projects represent innovations of both the school’s and the university’s pedagogical practices. The significant actors in the collaborative relationship have been teachers, undergraduate and graduate students, school pupils, and researchers. The collaboration, which still exists, started in 1996 and has experienced stages of varying intensity and scope conceived metaphorically as a thin string. Analysis of the case and collaborative process suggests an answer to the question: Why does this collaboration exist and what makes it sustainable? This case suggests that the collaborative projects provide solutions to problems intrinsic to the respective educational institutions.     

The role of cultural heritage in attracting skilled individuals

The purpose of this paper is to examine the role played by built heritages and cultural environments, alongside other locational factors, in explaining the growth of human capital in Sweden. We distinguish between urban, natural and cultural qualities as different sources of regional attractiveness and estimate their influence on the observed growth of individuals with at least three years of higher education during 2001–2010. Neighborhood-level data are used, and unobserved heterogeneity and spatial dependencies are modeled by employing random effects estimations and an instrumental variable approach. Our findings indicate that the local supply of built heritages and cultural environments explain a significant part of human capital growth in Sweden. Results suggest that these types of cultural heritages are important place-based resources with a potential to contribute to improved regional attractiveness and growth.     

Public and Popular: British and Swedish Audience Trends in Factual and Reality Television

The research in this article examines audience responses to a range of factual and reality genres. It takes as a starting point that television audiences do not experience news or documentary or reality TV in isolation but as part of a range of factual and reality programmes. Factual and reality programming includes a broad understanding of non-fictional programming on broadcast television, satellite, cable and digital television. The breakdown of factual and reality programming into specific genres includes news, current affairs, documentary, and reality programmes, with further sub genres applied within each of these categories. This article critically examines genre evaluation. The quantitative research in this article is based on two national representative surveys conducted in Britain and Sweden. In both Britain and Sweden, programme makers have moved towards a reliance on popular factual genres. In Britain this is across all channels, and in Sweden this is mainly concentrated on commercial channels. Whilst there is still a commitment to news, there is an increasing use of hybrid genres in an attempt to popularise factual output. The impact of this changing generic environment on audiences is that in both countries viewers have reacted by drawing a line between traditional and contemporary factual genres. It is precisely because of the redrawing of the factual map that viewers rely on traditional ways of evaluating genres as public and informative, or popular and entertaining. The data provides evidence that contributes to existing debate on television genre, public service broadcasting, and media literacy skills. The central argument in this article is that genre evaluation is connected with wider socio-cultural discourses on public service broadcasting and popular culture, and that these are common social and cultural values that are shared by national audiences in two Northern European countries.     

Skiing

The purpose of the investigation was to study the relationship between thrust phase duration, ground reaction force, velocity increase after pole thrust and pole angles versus pole length during double poling in roller skiing. Seven male regional elite cross‐country skiers volunteered as subjects for the study. The subjects performed a maximal double pole thrust on roller skis with each of the three different pole lengths: ‘short’, self‐selected (normal) and ‘long’. The short and long poles were 7.5 cm shorter and 7.5 cm longer than the self‐selected pole length. The subjects made seven maximal pole thrusts with each pole length, which were randomly selected during 21 trials. For each trial the subjects accelerated from a 1.2 m high downhill slope attaining a speed of 3.92 m.s^‐1 before making a maximal double pole thrust on a force plate placed at the bottom of the slope. The vertical (F_z), anterior‐posterior (F_y) and medio‐lateral (F_x) reaction forces of the left pole were measured by the force plate. The positions of the pole were recorded in 3‐D by an opto‐electronic system. Thrust phase duration, impulse, mean force, velocity increase after pole thrust and pole angles were calculated from the recorded data. Double poling with long poles produced a significantly larger propulsive anterior‐posterior reaction force impulse and velocity increase than normal (p < .05) and short poles (p < .05). This was in spite of a larger mean anterior‐posterior reaction force being produced with short poles. Thus, thrust phase duration was a primary factor in determining propulsive anterior‐posterior impulse. For the practitioner, the results can be useful in the selection of pole length when the aim is to increase thrust phase duration, anterior‐posterior force impulse and velocity.