Controlling the variable of pressure in the production of test footwear impressions

Footwear impression lifting and enhancement techniques may be affected by several variables introduced during the production of test footwear impressions, thus limiting the usefulness of enhancement technique comparisons and the results obtained. One such variable is the force applied when the impressed mark is being made. Producing consistent test impressions for research into footwear enhancement techniques would therefore be beneficial. This study was designed to control pressure in the production of test footwear impressions when mimicking a stamping action. Twenty-seven volunteers were asked to stamp on two different surfaces and the average stamping force was recorded. Information from the data obtained was used to design and build a mechanical device which could be calibrated to consistently deliver footwear impressions with the same force onto a receiving surface. Preliminary experiments using this device and different contaminants on the footwear sole have yielded consistent and repeatable impressions. Controlling the variable of pressure for the production of test impressions in this study demonstrated that the differences observed were visual (due to the amount of contaminant transferred and subsequent enhancement) and did not affect the replication of outer sole characteristics. This paper reports the development of the device and illustrates the quality of the impressions produced

Chemical enhancement of soil-based marks on nonporous surfaces followed by gelatin lifting

This study assessed the use of processing techniques (potassium thiocyanate, 2-2-dipyridil, potassium ferrocyanide, ammonium pyrrolidinedithiocarbamate, safranin, magnetic powder) for the enhancement of soil-based marks on nonporous surfaces, followed by gelatin lifting for the recovery of these marks. Other variables in the study included the use of nonporous substrates with varying colors (ceramic tiles, glass, linoleum, plastic bags, leaflets) and different aging periods (1, 7, 14, and 28 days) prior to enhancement and gelatin lifting. A numerical grading system from -1 (deterioration) to 4 (recovery of all fine detail) was adopted to assess the quality of the enhancement achieved.In this study, the two most effective chemical enhancement techniques for soil-based marks on nonporous surfaces were safranin and potassium thiocyanate, specifically on grey linoleum and white ceramic tiles. One-day aging of soil-based marks provided poor results, whereas 28-day aging periods provided superior enhancement. In general, lifting with gelatin lifts provided further improvement on the initial enhancement, by means of contrast and sharpness. However, the use of gelatin lifting sometimes resulted in the deterioration of the original mark. Marks treated with safranin and lifted with white gelatin lifts provided even further improvement through fluorescence examination

Chemical enhancement of soil based footwear impressions on fabric

This study investigates the enhancement of footwear impressions prepared with soils from different locations on a variety of fabric surfaces with different morphology. Preliminary experiments using seventeen techniques were carried out and the best responding reagents were evaluated further. Results indicated that the soils investigated (a cross-section of soils from Scotland) are more likely to respond to reagents that target iron ions rather than calcium, aluminium or phosphorus ions. Furthermore, the concentration of iron and soil pH did not appear to have an effect on the performance of the enhancement techniques. For the techniques tested, colour enhancement was observed on all light coloured substrates while enhancement on dark coloured fabrics, denim and leatherette was limited due to poor contrast with the background. Of the chemical enhancement reagents tested, 2,20-dipyridil was a suitable replacement for the more common enhancement technique using potassium thiocyanate. The main advantages are the use of less toxic and flammable solvents and improved clarity and sharpness of the enhanced impression. The surface morphology of the fabrics did not have a significant effect on the enhancement ability of the reagents apart from a slight tendency for diffusion to occur on less porous fabrics such as polyester and nylon/lycra blends

Training senior employees for ICT skills enhancement through “refocus”: The EUROPEAN project

Declining fertility rates and the ageing of the European population represents a major challenge to many governments within the European Union (EU) and its neighbouring realms, in the present and for the forthcoming decades. The increasing ageing workforce within several United Kingdom (UK) and the EU private and public organisations is an evident manisfestation. The workforce comprised of senior employees are often seen by employers as less mobile and flexible with low performance and thus, less able to deal with the rapid changes occurring in their organisations; as rapid developments require flexible and responsive workforce. The mobility of the senior employees is therefore a topical theme in the workforce market. The necessary knowledge and skills required for the senior employees can be taught through various Information and Communication Technologies (ICT) related training systems within an organisation. However, it appears that the development of training systems required for senior employees need careful investigation into the requirements of the problem situation. The reason is that the design of senior employees training systems should be more carefully planned, as literature indicates that it is significantly time consuming and is harder to train senior employees on ICT applications. This paper presents a European project – REFOCUS (oldeR Employees training on inFOrmation and CommUnication technologieS), an initaitive undertaken by the EU for enhancing the ICT skills of the ageing workforce. This project also aims at designing a new electronic learning (e-Learning) method that focuses on the needs of senior employees of 40 years of age and over – who can become a strategic resource for the European economy

Value, Kaizen and Knowledge Management: Developing a Knowledge Management Strategy for Southampton Solent University

The process of development of the strategic plan for Southampton Solent University offered a vehicle for the development of kaizen and knowledge management (KM) activities within the institution. The essential overlap between the methods offers clear benefits in the HE environment. In consideration of the aspects of KM and kaizen, various potential opportunities were identified as targets for improvement, and clarified by knowledge audit as to value and viability. The derived outcomes are listed along with some of the principal factors and perceived barriers in the practical implementation of the outcomes. Knowledge audit applied here focused on the identification of where value arises within the business. Resource constraints and the practicalities of a people-centred system limit the permissible rate of innovation, so precise focus on the areas of business activity of most significance to the mission and client base is crucial. The fundamental question of whether such a strategy should be developed as a separate strand or embedded into existing strategies is discussed. In practice, Solent has chosen to embed, principally for reasons of maintenance of ownership and commitment. Confidence in the process has been built through prior success with trialled activities around retention, where an activity-based pedagogic framework was adopted to address issues with an access course. Other areas of early intervention include the development and reengineering of recruitment and admissions processes, and the development of activities and pedagogy based on the virtual learning environment as exemplars of the importance of cyclical feedback in continuous improvement. The inherent complexity of processes running across the university as an organisation offers opportunities for benefits from the through-process approach implicit in kaizen. The business value of the institution is in the skills of its employees and its deployed intellectual property, and thus the importance of the enhancement of both tangible assets and intangible processes is critical to future success

Quality Assessment for E-learning: a Benchmarking Approach (Third edition)

The primary purpose of this manual is to provide a set of benchmarks, quality criteria and notes for guidance against which e-learning programmes and their support systems may be judged. The manual should therefore be seen primarily as a reference tool for the assessment or review of e-learning programmes and the systems which support them. However, the manual should also prove to be useful to staff in institutions concerned with the design, development, teaching, assessment and support of e-learning programmes. It is hoped that course developers, teachers and other stakeholders will see the manual as a useful development and/or improvement tool for incorporation in their own institutional systems of monitoring, evaluation and enhancement