Causality, apparent 'superluminality' and reshaping in barrier penetration

We consider tunneling of a nonrelativistic particle across a potential barrier. It is shown that the barrier acts as an effective beam splitter which builds up the transmitted pulse from the copies of the initial envelope shifted in the coordinate space backward relative to the free propagation. Although along each pathway causality is explicitly obeyed, in special cases reshaping can result an overall reduction of the initial envelope, accompanied by an arbitrary coordinate shift. In the case of a high barrier the delay amplitude distribution (DAD) mimics a Dirac delta function, the transmission amplitude is superoscillatory for finite momenta and tunneling leads to an accurate advancement of the (reduced) initial envelope by the barrier width. In the case of a wide barrier, initial envelope is accurately translated into the complex coordinate plane. The complex shift, given by the first moment of the DAD, accounts for both the displacement of the maximum of the transmitted probability density and the increase in its velocity. It is argued that analyzing apparent

Authenticity, Identity and Sustainability in Post-war Iraq: Reshaping the Urban Form of Erbil City

Issues of authenticity and identity are particularly significant in cities where social and cultural change is shaping active transformation of its urban fabric and structure in the post-war condition. In search of sustainable future, Iraqi cities are stretched between the two ends of the spectrum, authentic quarters with its traditional fabric and modern districts with their global sense of living. This paper interrogates the reciprocal influences, distinct qualities and sustainable performance of both authentic and modern quarters of Erbil, the
capital of the Iraqi province of Kurdistan, as factors in shaping sustainable urban forms for Iraqi cities. In doing so, the paper, firstly, seeks to highlight the urban identity as an effective factor in relation to sustainable urban form. Secondly, the city of Erbil in Iraq has been chosen as a field study, due to its regional, social, political and historical role in the region. Thirdly, the study emphasises the dynamic activities and performance of residential projects according to rational sustainable criteria. The research concludes that urban identity and the sense of place in traditional and historical places should inform design strategies in order to achieve a more sustainable urban context.

Virtual reshaping and invisibility in obstacle scattering

We consider reshaping an obstacle virtually by using transformation optics in acoustic and electromagnetic scattering. Among the general virtual reshaping results, the virtual minification and virtual magnification in particular are studied. Stability estimates are derived for scattering amplitude in terms of the diameter of a small obstacle, which implies that the limiting case for minification corresponds to a perfect cloaking, i.e., the obstacle is invisible to detection.

Community strategies in England: reshaping spaces of governance?

The preparation of Community Strategies (CS) has been required of LSPs and Local Authorities in England since the passing of the Local Government Act 2000. This paper examines the process and content of two Community Strategies in southern England as part of an ongoing project to understand their impact and explore ways that CSs may be carried through in a meaningful and effective manner. The paper concludes that the two CSs studied illustrate the challenge faced by LSPs in producing Strategies that are meaningful, inclusive and which follow the spirit of the government CS guidance. LAs and LSPs are also posed with a difficult challenge of seeing through an implicitly required transition from a traditional representative democratic structure/process with a more fluid participatory model. Thus we detect that at least two forms of conflict may arise – firstly with elected councillors threatened by a loss of power and secondly between communities and the LAs who are encouraged to problematise local policy and service delivery in the context of limited resource availability.

The quiet remedy: A dialogue on reshaping professional relationships

This article begins with an overview of the current context for the delivery of social/welfare services and goes on to consider client-worker relationship boundaries that fall within and outside conventional ethical parameters in professional practice. Alternative interpretations of "relationship" are discussed, noting in particular what consumers of services have identified as being beneficial qualities demonstrated by professional "helpers." Using touch and adopting notions of compassion, love, and reciprocity are discussed, noting how these ideas collide with the current ethical thinking commonly used to guide Western social work practice. Finally, a reexamination of "professionalism" is proposed, including ways to facilitate worker-client connectivity. Throughout, the complex tensions between balancing ethical considerations with ideas relating to trust, risk, and authenticity are articulated.

'I see nothing has changed': reshaping practitioner concerns about institutional change

My PhD research revealed widespread disquiet that Training Packages are typically written in a complex and abstract institutional language form that excludes all but knowledgeable readers. Many practitioners and participants struggle to understand the units of competency they are trying to work with. In a national VET system which claims that decision making and policy development are based on consultation and research, how can this disquiet go unnoticed? This paper examines a sequence of five texts drawn from the review and development of the Training Package qualifications for VET practitioners. It argues that the impact of an excluding language form has been recognised and then subsumed in two separate review and  development processes. When the first competency standards for workplace trainers and assessors were reviewed in 1997 much of the target population was found to lack awareness, familiarity, experience or expertise in using the standards. Yet the review is reported to have concluded that most users were satisfied with the language used in those standards. When the  Training Package for Assessment and Workplace Training was reviewed in 2001 the complex language was one of the most common issues raised in unprecedented consultations and was identified as a significant accessibility issue. Yet the Training and Assessment Training Package responded by entrenching the use of this language as a compulsory assessable requirement and suggesting that individuals who have difficulty with the language may require training to improve their own (presumed deficient) language and literacy skills. Practitioner input was ‘written down’ but not ‘taken up’. The paper concludes that the concerns expressed by practitioners exposed to public critique fundamental issues about a Training Package that was a ‘lynchpin’ of the VET system and a key component of the ‘rules of the VET game’. But the concerns were reshaped and redefined in a process that was aligned to national VET policy rather than to local needs.