Contextualising Craft: Pedagogical Models for Craft Education

Craft education in Finland is, in many aspects, in a state of change. This concerns the independent position of craft as a school subject, the content of the compulsory craft courses containing textiles and technical work, the implementation of the new concept of a holistic craft process in the National Core Curriculum and so on. This bears relevance to the question of how craft should be taught at school. This article explores the ways in which teachers can strengthen the relevance and meaningfulness of craft education at school. Teachers are challenged to provide more authentic instructional contexts and activities beyond the traditional curriculum in order to address successful living in today's society. One solution is to contextualise this teaching with the help of pedagogical models that realise the concept of holistic craft. The pedagogical models discussed in this article are based on curriculum publications, materials in print and research by other scholars.     

A method to integrate patterned electrospun fibers with microfluidic systems to generate complex microenvironments for cell culture applications

The properties of a cell’s microenvironment are one of the main driving forces in cellular fate processes and phenotype expression invivo. The ability to create controlled cell microenvironments invitro becomes increasingly important for studying or controlling phenotype expression in tissue engineering and drug discovery applications. This includes the capability to modify material surface properties within well-defined liquid environments in cell culture systems. One successful approach to mimic extra cellular matrix is with porous electrospun polymer fiber scaffolds, while microfluidic networks have been shown to efficiently generate spatially and temporally defined liquid microenvironments. Here, a method to integrate electrospun fibers with microfluidic networks was developed in order to form complex cell microenvironments with the capability to vary relevant parameters. Spatially defined regions of electrospun fibers of both aligned and random orientation were patterned on glass substrates that were irreversibly bonded to microfluidic networks produced in poly-dimethyl-siloxane. Concentration gradients obtained in the fiber containing channels were characterized experimentally and compared with values obtained by computational fluid dynamic simulations. Velocity and shear stress profiles, as well as vortex formation, were calculated to evaluate the influence of fiber pads on fluidic properties. The suitability of the system to support cell attachment and growth was demonstrated with a fibroblast cell line. The potential of the platform was further verified by a functional investigation of neural stem cell alignment in response to orientation of electrospun fibers versus a microfluidic generated chemoattractant gradient of stromal cell-derived factor 1 alpha. The described method is a competitive strategy to create complex microenvironments invitro that allow detailed studies on the interplay of topography, substrate surface properties, and soluble microenvironment on cellular fate processes.     

Vimentin networks at tunable ion-concentration in microfluidic drops

The structure and function of biological systems, for example, cells and proteins, depend strongly on their chemical environment. To investigate such dependence, we design a polydimethylsiloxane-based microfluidic device to encapsulate biological systems in picoliter-sized drops. The content of each individual drop is tuned in a defined manner. As a key feature of our method, the individual chemical composition is determined and related to the drop content. In our case, the drop content is imaged using microscopy methods, while the drops are immobilized to allow for long-time studies. As an application of our device, we study the influence of divalent ions on vimentin intermediate filament networks in a quantitative way by tuning the magnesium concentration from drop to drop. This way we are able to directly image the effect of magnesium on the fluorescently tagged protein in a few hundreds of drops. Our study shows that with increasing magnesium concentration in the drops, the compaction of the networks becomes more pronounced. The degree of compaction is characterized by different morphologies; freely fluctuating networks are observed at comparatively low magnesium concentrations of 5–10 mM, while with increasing magnesium concentration reaching 16 mM they develop into fully aggregated networks. Our approach demonstrates how a systematic study of interactions in biological systems can benefit from the exceptional controllability of microfluidic methods.     

Residing in silence and wonder: career counselling from the perspective of ‘being’

We are approaching career counselling from the perspective of “Being”, which we recognize to be a daunting task. Nevertheless we find it extremely important that the counsellor become aware of and try to think, talk and act from his or her embeddedness in being, and by that help the client to do the same. This process involves an ontological and spiritual approach, and builds upon the Socratic ability to wonder, the meditative way of “undoing” and the artful act of creation.     

Enhanced speed control of a DC servo system using PI + DF controller tuned by stochastic fractal search technique

Since Proportional?+?Integral?+?Derivative (PID) controller is still the workhorse in taking over the workload of process control systems, this article introduces a new design methodology toward improving the performance of such controller. After a PI control law with windup protection is given, it is combined with a derivative path employing a first-order low pass filter in an innovative way to develop a performant controller called PI?+?DF controller. In attempting to attain a high level of control performance, gains of this controller including proportional, integral, derivative and filter gains are tuned choosing the recently introduced Stochastic Fractal Search (SFS) algorithm owing to its superiority to many state-of-the-art algorithms considering convergence, accuracy and robustness. To evaluate the efficacy of SFS, Particle Swarm Optimization (PSO) is also applied to the case study. Furthermore, the presented SFS optimized PI?+?DF controller is compared to a recently reported control scheme through simulation and experimental tests on an identical DC servo system. After providing the stability proof, SFS tuned PI?+?DF controller is found to be the pioneer in exhibiting the most accurate speed response profile under complicated scenarios, which is followed by PSO tuned PI?+?DF controller and the existing control approach, respectively.     

For the oppressed teacher: stay real!

This article addresses teachers’ challenges in relation to other stakeholders, in light of funding policies and evaluation mechanisms. In particular, a condition where pressures toward high pass rates or ‘throughput’ in the degree system provide a good negotiation position for students with little learning orientation as to their aspirations after credit units is considered. This condition is intensi?ed by the fact that the mere completion goals of non-learning-oriented students align with the collective goals of administration (university), given the throughput-based funding policies. A teacher willing to honorably exercise the profession is, then, ‘squeezed in between.’ Daily teaching endures by the incorporation of the wrong kind of ?exibility, which undermines the education system. This problematic pattern is reviewed, and a remedy proposed by drawing on Freire and considering a recent theorization by Sutton on the position of an academic under a neoliberalist condition.     

The importance of the advisor’s relational and professional competence and formal power in meetings with farmers

Purpose: The aim of the paper is to explore how advisors’ relational and professional competence influences inter-subjectivity and farmers’ perceptions of farm visits in a setting where advisors have formal power.Methodology: Advisors from the dairy company Tine, which is owned by farmers in collaboration, visit farmers at least once a year. The aim of the visit is to assist farmers in managing the farm and to control the production conditions in the cowshed. In a case study, we attended 10 such mandatory advisor visits and interviewed both farmers and advisors.Findings: Together with advisor style, our findings show that the power relation leaves room for advisors to define their roles widely, ranging from inspector to coach. Advisors have different perceptions of what their jobs are and when they have done a good job. These differences determine the degree of inter-subjectivity and how satisfied farmers are with visits. Furthermore, advisors’ relational and professional competencies are crucial for achieving high inter-subjectivity and satisfied farmers.Theoretical implications: This paper contributes to the theory by identifying factors that influence farmers’ perceptions of advisor visits, as well as by showing the importance of the advisor’s relational and professional competence in a setting where they have formal power.Practical implications: Partly as an outcome of this study, Tine has started a process to separate the control function from farm visits. Tine has also decided to let farmers choose advisors themselves. Originality/value: The power relation in our study differs from most consultant–client interactions in the literature.     

Varying access to professional,special educational support: a total population comparison of special educators in Swedish independent and municipal schools

Independent schools are securely established in the Swedish education system. Prior research shows they generally have fewer pupils in need of support and lower proportions of special educators. Here, results are presented from a total population study of Swedish special educators (n = 4252) examined after 2001. The aim was to explore and compare the occupational situations of special educators working in Swedish municipal and independent schools. This is done by studying their occupational situations and the values they express regarding identification of – and work with – special support. The results show that while the respondents are demographically similar and express similar values, they have very different occupational situations. Those employed in independent schools have fewer years’ experience as special educators, are more often employed part‐time than full‐time and are more likely to hold other positions in schools (such as head teacher) than those employed in municipal schools. The results further illustrate different organisational approaches towards special educational support. Apparent is that independent schools offer professional special educational resources to a lower degree and utilise them differently. This is likely to influence the situation of pupils in need of support, and has consequences for the image of the Swedish education system.     

Differences in trunk and thigh muscle strength,endurance and thickness between elite sailors and non-sailors

Dinghy sailors lean their upper body over the windward side of the boat (‘hiking’) to keep the boat’s balance and maximise its speed. Sustaining the hiking position is essential for competitive performance and this study examined sport-specific differences of muscles relevant for hiking in elite sailors. Knee extensor muscle strength as well as trunk muscle strength, muscle endurance and muscle thickness were assessed in elite dinghy sailors (n = 15) and compared to matched, non-sailing controls (n = 15). Isometric extensor strength was significantly higher in sailors at 60° (+14%) but not at 20° knee flexion. Sailors showed significantly higher trunk flexor (but not extensor) strength under isometric (+18%) and eccentric (+11%) conditions, which was associated to greater muscle thickness (rectus abdominis +40%; external oblique +26%) and higher endurance for ventral (+66%) and lateral (+61%) muscle chains compared to non-sailors. Greater muscles thickness and the particular biomechanical requirements to maintain the hiking position may drive the increases in isometric and eccentric muscle strength as well as ventral and lateral trunk endurance. The current findings identified sport-specific muscle function differences and provide performance benchmarks for muscle strength and endurance in elite sailors.     

Kinetic and kinematic patterns during high intensity clean movement: searching for optimal load

The aim of the present study was to investigate loading effects on kinematic and kinetic variables among elite-weightlifters in order to identify an optimal training load to maximize power production for clean-movement. Nine elite-weightlifter (age: 24 ± 4years, body-mass: 77 ± 6.5kg, height: 176 ± 6.1cm and 1RM clean: 170 ± 5kg) performed 2 separate repetitions of the clean using 85, 90, 95% and 100%, in a randomized order, while standing on a force platform and being recorded using 3D-capture-system. Differences in kinematics (barbell displacement, velocity and acceleration) and kinetics (power, vertical ground reaction force (vGRF), rate of force development (RFD), and work) across the loads were statistically assessed. Results revealed significant load effects for the majority of the studied parameters (p < 0.01) and showed that typical bar-displacement, greatest bar-velocity and peak-power were achieved at 85 and 90% 1RM (p < 0.001). Additionally greater average power was shown for 90 and 95% (p < 0.01) and greater work and vGRF were shown for 90, 95 and 100% than 85% 1RM (p < 0.05). Load had no significant effect on peak-vGRF and peak-RFD (p > 0.05). The results of this study, suggest 90% 1RM to be the most advantageous load to train explosive-force and to enhance power-outputs while maintaining technical efficiency in elite-weightlifters.