Evaluating the Impact of a Raising School Standards Initiative
Concern about the quality of schooling in disadvantaged urban areas has been especially marked throughout the United Kingdom during the 1990s. This led to the instigation of a major school improvement project in Northern Ireland, known as the Raising School Standards Initiative, that was intended to help schools address significant disadvantage and under-achievement amongst their pupils. The project, based on the knowledge base of the school effectiveness tradition, was designed to target a small number of secondary schools and their main contributory primary schools. The project sought to improve the quality of school management, the pupils’ standards of literacy and numeracy, the levels of qualifications, links with local industry, parental involvement in schools, attendance and punctuality, and to deal with problems of discipline in class. The improvement strategy selected can be seen as an attempt to integrate a ‘top down’ external approach (distal) with a ‘bottom up’ (proximal) strategy developed within individual schools. This chapter describes selected aspects of the full evaluation: the launch and selection of schools and the process of ‘action planning’. It also looks at the impact of the project on management, teaching and learning and educational standards. It concludes with findings which will have implications for other initiatives which seek to raise school standards in the urban context.
Gamed by the System
The recent policy focus on the turnaround of persistently low-achieving schools has generated considerable debate about the reforms needed to dramatically and quickly increase school performance. The purpose of this article is not to focus on specific turnaround interventions, but rather on the identification of schools slated to receive these interventions. Results from the study of 1,059 public schools suggested that operational definitions that relied on No Child Left Behind Act of 2001 metrics overidentified high schools educating diverse populations.
Diversity of Electrospinning Approach for Vascular Implants: Multilayered Tubular Scaffolds
Abstract The biomimetics of biological structures found in nature remains one of the most promising approaches to engineer functional tissues from natural or synthetic biocompatible materials for the replacement of damaged or injured parts of the human body. Recently, medical therapeutic regimes have advanced into a new era, overcoming the known mechanical and biological variances that occur when using autologous or synthetic grafts. Basically, the core concept of tissue biofabrication, commonly referred to as tissue engineering, is to find out the favorable cellular microenvironments to grow a living tissue prior to clinical uses. In fact, the ability of stem cells to regenerate is controlled via signaling pathways (growth factors) and supporting materials (scaffolds) that guide the cellular activities. After the first successful experiments to fabricate polymer fibers from their solutions, Cooley proposed the use of an electric field a century ago (Cooley (US 692:631, 1902 ). The electrospinning technique has been continually developed as a fruitful polymer processing technique to draw ultrafine nonwoven fibers. Electrospun polymer fibers have been used for a wide range of technical and biotechnical applications such as filtration, organic solar cells, tissue engineering, and drug releasing implants. In this regard, this review begins with an overview about the various spinning approaches for the fabrication of polymer fibers as well as the basic principles of electrospinning process. In addition, this review will highlight vascular bypass surgery and, in particular, the needs for vascular tissue engineering. Finally, the review includes some of the latest attempts to improve the mechanical and biological properties of electrospun polymeric fibers and summarizes the challenges and prospects for the future. Lay Summary However, vascular defects are treated successfully via bypass surgical bypass grafting using autologous or synthetic vessels. The small-diameter vessels (less than 6) are often associated with high failure rate. This review reports some of the recent features that should be highlighted to fabricate an ideal graft for small-diameter vascular grafts. The review introduces multilayered conduits as an alternative approach to overcome the known mechanical and biological mismatches of single layered vascular grafts of electrospun polymers.