The Marrakesh Treaty could bring the world’s books to the blind

An estimated 285 million people worldwide are visually impaired. Some 90% of those live in developing nations, where less than 1% of the world’s books are available in a form they can read. In developed countries, the situation is only marginally better: only around 7% of the world’s books are accessible to print-disabled people. The right to read is part of our basic human rights. Access to the written word is crucial to allow people to fully participate in society. It’s important for education, political involvement, success in the workplace, scientific progress and, not least, creative play and leisure. Equal access to books and other cultural goods is also required by international law. The technology now exists to deliver books in accessible electronic forms to people much more cheaply than printing and shipping bulky braille copies or books on tape. Electronic books can be read with screen readers and refreshable braille devices, or printed into large print or braille if needed. Now that we have this technology, what’s been referred to as the global “book famine” is a preventable tragedy.

Severe workplace conflict : the experience of mobbing

Workplace mobbing is a particularly serious phenomenon that is extremely costly to organizations and the health of those targeted. This article reports on a study of self-identified targets of mobbing. Findings support a five-stage process of mobbing, which commences with unresolved conflict and leads ultimately to expulsion from the organization. Participants report a number of experiences, such as lengthy investigations and escalation of conflict, that result in an increasingly unbalanced sense of power away from the individual and towards the organization. Revealed is a mismatch between the expected organizational justice processes and support and the actual experience. Recommendations for approaching this problem are discussed.

Blind Collaboration

This paper examines the creation, development and implementation of an artistic process termed by the author ‘Blind Collaboration’. The process involves musicians collaborating on an album of contemporary music where they, the collaborators, do not see or hear each other nor record in the same studio at the same time as their fellow musicians. The notion of musicians recording separately or indeed remotely is not new, however what is new is the ‘blind’ aspect of the process. Each musician is completely unaware of any others’ contributions, and is therefore uninfluenced by what the others might play. None of the musicians hears the overall result until the final mix. The principal focus of this case study lies in the analysis of specific aspects and outcomes of the creative/artistic process - how it evolved, how it was managed, how it was influenced by the particular artists involved and how the Blind Collaboration process ultimately shaped the final musical work.

Real world contexts in PISA science : implications for context-based science education

The PISA assessment instruments for students’ scientific literacy in 2000, 2003 and 2006 have each consisted of units made up of a real world context involving Science and Technology, about which students are asked a number of cognitive and affective questions. This paper discusses a number of issues from this use of S&T contexts in PISA and the implications they have for the current renewed interest in context-based science education. Suitably chosen contexts can engage both boys and girls. Secondary analyses of the students’ responses using the contextual sets of items as the unit of analysis provides new information about the levels of performance in PISA 2006 Science. .Embedding affective items in the achievement test did not lead to gender/context interactions of significance, and context interactions were less than competency ones. A number of implications for context-based science teaching and learning are outlined and the PISA 2006 Science test is suggested as a model for its assessment.

A peptidomimetic inhibitor of matrix metalloproteinases containing a tetherable linker group

Successful wound repair and normal turnover of the extracellular matrix relies on a balance between matrix metalloproteinases (MMPs) and their natural inhibitors (the TIMPs). When over-expression of MMPs and abnormally high levels of activation or low expression of TIMPs are encountered, excessive degradation of connective tissue and the formation of chronic ulcers can occur. One strategy to rebalance MMPs and TIMPs is to use inhibitors. We have designed a synthetic pseudopeptide inhibitor with an amine linker group based on a known high-affinity peptidomimetic MMP inhibitor have demonstrated inhibition of MMP-1, -2, -3 and -9 activity in standard solutions. The inhibitor was also tethered to a polyethylene glycol hydrogel using a facile reaction between the linker unit on the inhibitor and the hydrogel precursors. After tethering, we observed inhibition of the MMPs although there was an increase in the IC50s which was attributed to poor diffusion of the MMPs into the hydrogels, reduced activity of the tethered inhibitor or incomplete incorporation of the inhibitor into the hydrogels. When the tethered inhibitors were tested against chronic wound fluid we observed significant inhibition in proteolytic activity suggesting our approach may prove useful in rebalancing MMPs within chronic wounds.

Compact multiport antenna with isolated ports

The small element spacing of compact multiport arrays introduces strong mutual coupling between the antenna ports. Due to this coupling, the input impedance of the array changes when elements excitations are varied, and consequently, the array cannot be matched for an arbitrary excitation. Decoupling networks have in the past been used to provide an additional connection between antenna ports in order to cancel the coupling between elements. An alternative approach is to design the antenna so that each port does not excite a single element, but all elements simultaneously instead. The geometry of the antenna is optimized so that this direct excitation of elements counteracts the mutual coupling, thus yielding decoupled ports. This paper describes the design of such a 4-port antenna.

UWB antenna array for wireless transmission along corridors

A 2-element elliptical patch antenna array with a bi-directional radiation pattern has been developed for ultra wideband indoor wireless communications. The array is constructed by means of feeding two omni-directional elliptical patch elements with a 3-section hybrid power divider. Experimental results show that the array has a stable radiation pattern and low return loss over a broad bandwidth of 64% (3.1 - 6 GHz).

A modified dual-band microstrip monopole antenna

A modified microstrip-fed planar monopole antenna with open circuited coupled line is presented in this paper. The operational bandwidth of the proposed antenna covers the 2.4 GHz ISM band (2.42-2.48 GHz) and the 5 GHz WLAN band (5 GHz to 6 GHz). The radiating elements occupy a small area of 23×8 mm2. The Finite Difference Time Domain method is used to predict the input impedance of the antenna. The calculated return loss shows very good agreement with measured data. Reasonable antenna gain is observed across the operating band. The measured radiation patterns are similar to those of a simple monopole antenna.

Characteristics of a two-layer microstrip patch antenna for Bluetooth applications

A double-layer rectangular patch microstrip antenna suitable for Bluetooth applications is investigated. The patch is etched on a separate substrate which is suspended above the ground plane and supported by an MCX connector. The air gap between the patch and the ground plane increases the impedance bandwidth and can be used to tune the resonant frequency. This paper presents experimental results on the effects of various parameters on the antenna characteristics and provides guidelines for the design of such an antenna.

Microstrip decoupling networks for low-order multi-port arrays with reduced element spacing

An array of monopole elements with reduced element spacing of λ/6 to λ/20 is considered for application in digital beam-forming and direction-finding. The small element spacing introduces strong mutual coupling between the array elements. This paper discusses that decoupling can be achieved analytically for arrays with three elements and describes Kuroda’s identities to realize the lumped elements of the derived decoupling network. Design procedures and equations are proposed. Experimental results are presented. The decoupled array has a bandwidth of 1% and a superdirective radiation pattern.

Review: "Information and Communication Technologies in Tourism 2003" edited by Frew, A.J., Hitz, M., & O’Connor, P.

"This volume represents the proceedings of the 10th ENTER conference, held in Helsinki, Finland during January 2003. The conference theme was ‘technology on the move’, and the 476pp. proceedings offer 50 papers by 108 authors. The editors advise all papers were subject to a double blind peer review. The research has been categorised into 18 broad headings, which reflects the diversity of topics addressed. This reviewer has adopted the approach of succinctly summarising each of the papers, in the order they appear, to assist readers of Tourism Management in judging the potential value of the content for their own work..." -- publisher website

Globalization of science education : comment and a commentary

The globalized nature of modern society has generated a number of pressures that impact internationally on countries’ policies and practices of science education. Among these pressures are key issues of health and environment confronting global science, global economic control through multinational capitalism, comparative and competitive international testing of student science achievement, and the desire for more humane and secure international society. These are not all one-way pressures and there is evidence of both more conformity in the intentions and practices of science education and of a greater appreciation of how cultural differences, and the needs of students as future citizens can be met. Hence while a case for economic and competitive subservience of science education can be made, the evidence for such narrowing is countered by new initiatives that seek to broaden its vision and practices. The research community of science education has certainly widened internationally and this generates many healthy exchanges, although cultural styles of education other than Western ones are still insufficiently recognized. The dominance of English language within these research exchanges is, however, causing as many problems as it solves. Science education, like education as a whole, is a strongly cultural phenomenon, and this provides a healthy and robust buffer to the more negative effects of globalization