Reasons for choosing a further education: the views of 700 new entrants

This article explores some reasons for choosing a further education given by 700 new entrants to 10 Scottish further education colleges. It tries to distinguish between instrumental reasons, such as those concerned with the quest for employment and what students perceive as most intrinsically worthwhile about a further education. It also tries to identify some of the methods of communication that are most effective in attracting students to further education. It seems that leaflets and mail shots are by far the most effective methods of communication before students enter college. The local reputation of the college as a place where good social relationships are fostered including those fostered in the classroom seems more important than the resources devoted to teaching. Even though many new entrants cite instrumental reasons as being very important, detail in the curriculum seems to be much less important to them. We speculate that this is because students are prepared to trust such detail to teachers they perceive to be good. Colleges therefore have an opportunity, if not a responsibility, to take students beyond instrumentalism

Epitaxial Frustration in Deposited Packings of Rigid Disks and Spheres

We use numerical simulation to investigate and analyze the way that rigid disks and spheres arrange themselves when compressed next to incommensurate substrates. For disks, a movable set is pressed into a jammed state against an ordered fixed line of larger disks, where the diameter ratio of movable to fixed disks is 0.8. The corresponding diameter ratio for the sphere simulations is 0.7, where the fixed substrate has the structure of a (001) plane of a face-centered cubic array. Results obtained for both disks and spheres exhibit various forms of density-reducing packing frustration next to the incommensurate substrate, including some cases displaying disorder that extends far from the substrate. The disk system calculations strongly suggest that the most efficient (highest density) packings involve configurations that are periodic in the lateral direction parallel to the substrate, with substantial geometric disruption only occurring near the substrate. Some evidence has also emerged suggesting that for the sphere systems a corresponding structure doubly periodic in the lateral directions would yield the highest packing density; however all of the sphere simulations completed thus far produced some residual "bulk" disorder not obviously resulting from substrate mismatch. In view of the fact that the cases studied here represent only a small subset of all that eventually deserve attention, we end with discussion of the directions in which first extensions of the present simulations might profitably be pursued.Comment: 28 pages, 14 figures; typos fixed; a sentence added to 4th paragraph of sect 5 in responce to a referee's comment

Annual Performance Reviews Of, For and By Faculty: A Qualitative Analysis of One Department's Experiences

Purpose: Although annual performance reviews and feedback are recommended for faculty development, best practices and faculty perceptions have not been documented. The authors sought to evaluate the process in one medical school department that established and has sustained an innovative review tradition for 25 years. Method: Content analysis of faculty reports and immersion/crystallization to analyze interviews. Results: Faculty reports described satisfaction and dissatisfaction; facilitators and barriers to goals; and requests for feedback, with community, collaboration and mentorship integral to all three. Interviewees emphasized practical challenges, the role of the mentor and the power of the review to establish community norms. Conclusion: Respondents generally found reviews constructive and supportive. The process informs departmental expectations and culture

Locked and Unlocked Chains of Planar Shapes

We extend linkage unfolding results from the well-studied case of polygonal linkages to the more general case of linkages of polygons. More precisely, we consider chains of nonoverlapping rigid planar shapes (Jordan regions) that are hinged together sequentially at rotatable joints. Our goal is to characterize the families of planar shapes that admit locked chains, where some configurations cannot be reached by continuous reconfiguration without self-intersection, and which families of planar shapes guarantee universal foldability, where every chain is guaranteed to have a connected configuration space. Previously, only obtuse triangles were known to admit locked shapes, and only line segments were known to guarantee universal foldability. We show that a surprisingly general family of planar shapes, called slender adornments, guarantees universal foldability: roughly, the distance from each edge along the path along the boundary of the slender adornment to each hinge should be monotone. In contrast, we show that isosceles triangles with any desired apex angle less than 90 degrees admit locked chains, which is precisely the threshold beyond which the inward-normal property no longer holds.Comment: 23 pages, 25 figures, Latex; full journal version with all proof details. (Fixed crash-induced bugs in the abstract.

Insulated conducting cantilevered nanotips and two-chamber recording system for high resolution ion sensing AFM.

Biological membranes contain ion channels, which are nanoscale pores allowing controlled ionic transport and mediating key biological functions underlying normal/abnormal living. Synthetic membranes with defined pores are being developed to control various processes, including filtration of pollutants, charge transport for energy storage, and separation of fluids and molecules. Although ionic transport (currents) can be measured with single channel resolution, imaging their structure and ionic currents simultaneously is difficult. Atomic force microscopy enables high resolution imaging of nanoscale structures and can be modified to measure ionic currents simultaneously. Moreover, the ionic currents can also be used to image structures. A simple method for fabricating conducting AFM cantilevers to image pore structures at high resolution is reported. Tungsten microwires with nanoscale tips are insulated except at the apex. This allows simultaneous imaging via cantilever deflections in normal AFM force feedback mode as well as measuring localized ionic currents. These novel probes measure ionic currents as small as picoampere while providing nanoscale spatial resolution surface topography and is suitable for measuring ionic currents and conductance of biological ion channels

The craft of evaluative practice: Negotiating legitimate methodologies within complex interventions

Evaluations of complex interventions are likely to encounter tensions between different methodological principles, and between the inherent causal rationality of evaluation and the messy complexity of real institutional contexts. Conceptualizing evaluation as producing putatively authoritative evidence, we show how ‘legitimacy’ is a useful concept for unpacking evaluation design in practice. A case study of service integration shows how different approaches may have unpredictable levels of legitimacy, based in contrasting assessments of their methodological acceptability and actual utility. Through showing how practitioners resolved the tensions, we suggest that crafting a patchwork of different methodologies may be legitimate and effective, and can be seen as underpinned by its own pragmatic rationality. However, we also conclude that the explanatory power of theory-driven evaluation can be embedded in such an approach, both in elements of the patchwork and as an overarching guiding principle for the crafting process

The contribution of stakeholder involvement to policy making for sustainable development in National Parks

It is widely accepted that new governance structures are needed to support sustainable development, because of both the nature of the challenges faced, and the incapacity of existing modes of government to address them in a context of eroded legitimacy. A burgeoning range of participatory practices rests on an established orthodoxy that sustainable development requires increased public involvement in policy making. Alongside this, governance is increasingly characterised by partnership working with a wide range of stakeholders. However evidence suggests that radical policy ideas may be weakened rather than strengthened by deliberation, and there is as yet limited understanding of the effectiveness of different deliberative practices. The aim of the research was to examine this problem by analysing and comparing the contribution of different forms of stakeholder representation and involvement to the capacity of planning authorities to make the difficult choices and trade-offs implicit in implementing sustainable development. This was achieved through analysis of transport policy making within the Peak District National Park which allowed comparison between the effectiveness of ‘old’ and ‘new’ deliberative processes

Generic Global Rigidity in Complex and Pseudo-Euclidean Spaces

In this paper we study the property of generic global rigidity for frameworks of graphs embedded in d-dimensional complex space and in a d-dimensional pseudo-Euclidean space R$^{2}$ with a metric of indefinite signature). We show that a graph is generically globally rigid in Euclidean space iff it is generically globally rigid in a complex or pseudo-Euclidean space. We also establish that global rigidity is always a generic property of a graph in complex space, and give a sufficient condition for it to be a generic property in a pseudo-Euclidean space. Extensions to hyperbolic space are also discussed.Engineering and Applied Science

To the Ladies (March 7, 1924)

Article for To the Ladies (March 7, 1924). To view the photos from this production of To the Ladies, please click here