“CONSERVATION VERSUS RECONSTRUCTION.” DO WE NEED OTHER OR NEW CRITERIA FOR CONSERVING ARCHITECTURAL SURFACES OF THE 20THCENTURY?

Until today, in most European countries there is no juridical definition or legal recognition of the profession of the conservator-restorer. This fact means an almost complete lack of specific regulations anticipating conservation-restoration activities and stipulating the quality of these activities. The absolute need for qualified professionals, for a legal status, for an evaluation of the dynamics in a conservation–restoration project and finally for an analysis of the essential methodological steps of the conservation project require evidence of professional responsibility, competence and qualification. At the very beginning of the conservation of 20th century architecture, the professional figure of the architect wasn´t discussed in his historically grown leading position. The task of the conservator-restorer and of the conservation sciences at that time was to take part in a planning process that often started with a “reconstruction concept” for regaining the lost “original” design of the architecture. It seemed to be more important to reconstruct “ideas” than to follow the traces of the authentic materials, and to document and conserve them. Often this was justified with the alleged “special status” of modern architecture which was supposed to be too fragile and too ephemeral to be conserved in the same way as other historical monuments. This article wants to illustrate that effective “project management” based on a shared and transparent theoretical fundament is able to bring about a conciliation of the apparently diametrically opposed opinions and concepts of “Conservation” and “Reconstruction”.Until today, in most European countries there is no juridical definition or legal recognition of the profession of the conservator-restorer. This fact means an almost complete lack of specific regulations anticipating conservation-restoration activities and stipulating the quality of these activities. The absolute need for qualified professionals, for a legal status, for an evaluation of the dynamics in a conservation–restoration project and finally for an analysis of the essential methodological steps of the conservation project require evidence of professional responsibility, competence and qualification. At the very beginning of the conservation of 20th century architecture, the professional figure of the architect wasn´t discussed in his historically grown leading position. The task of the conservator-restorer and of the conservation sciences at that time was to take part in a planning process that often started with a “reconstruction concept” for regaining the lost “original” design of the architecture. It seemed to be more important to reconstruct “ideas” than to follow the traces of the authentic materials, and to document and conserve them. Often this was justified with the alleged “special status” of modern architecture which was supposed to be too fragile and too ephemeral to be conserved in the same way as other historical monuments. This article wants to illustrate that effective “project management” based on a shared and transparent theoretical fundament is able to bring about a conciliation of the apparently diametrically opposed opinions and concepts of “Conservation” and “Reconstruction”

Developing the Rehabilitation Education for Caregivers and Patients (RECAP) Model: Application to Physical Therapy in Stroke Rehabilitation

Patient and caregiver education is recognized as a critical component of stroke rehabilitation and physical therapy practice yet the informational needs of stroke survivors and caregivers are largely unmet and optimal educational interventions need to be established. The objective of this dissertation was to develop a theory and model of “Rehabilitation Education for Caregivers and Patients” (RECAP) in the context of physical therapy and stroke rehabilitation, grounded in the experiences and perceptions of stroke survivors, their caregivers, and physical therapists. Qualitative research methods with a novel grounded theory approach were used. Potential constructs of RECAP were identified from existing research. Next, semi-structured interviews were conducted with 13 stroke survivors and 12 caregivers from rural Appalachian Kentucky, a region with high incidence of stroke and lower levels of educational attainment. Lastly, 13 physical therapists, representing inpatient rehabilitation, outpatient, and home health, were recruited and participated in pre-interview reflection activities and interviews. Data analysis involved predetermined and emerging coding and a constant comparative method was employed. Verification strategies included self-reflective memos, analytic memos, peer debriefing, and triangulation. The theory generated from this dissertation is: physical therapists continually assess the educational needs of stroke survivors and caregivers, to participate in dynamic educational interactions that involve the provision of comprehensive content, at a point in time, delivered through diverse teaching methods and skilled communication. This phenomenon is influenced by characteristics of the physical therapist and receiver (stroke survivor/caregiver) and occurs within the context of the physical therapist’s professional responsibility, the multidisciplinary team, a complex healthcare system, and the environmental/socio-cultural context. The RECAP theoretical model depicts the relationships between the core and encompassing constructs of the theory. The RECAP theory and model presents a significant advancement in the study of patient and caregiver education in physical therapy in stroke rehabilitation. This research provides a springboard to inform future research, guide RECAP in stroke physical therapy practice, design optimal educational interventions, develop training tools for entry-level curriculum and practicing clinicians, and to potentially translate to the practice of patient and caregiver education for other rehabilitation professionals and patient populations

Optimal trapping wavelengths of Cs2_2 molecules in an optical lattice

The present paper aims at finding optimal parameters for trapping of Cs$_2$ molecules in optical lattices, with the perspective of creating a quantum degenerate gas of ground-state molecules. We have calculated dynamic polarizabilities of Cs$_2$ molecules subject to an oscillating electric field, using accurate potential curves and electronic transition dipole moments. We show that for some particular wavelengths of the optical lattice, called "magic wavelengths", the polarizability of the ground-state molecules is equal to the one of a Feshbach molecule. As the creation of the sample of ground-state molecules relies on an adiabatic population transfer from weakly-bound molecules created on a Feshbach resonance, such a coincidence ensures that both the initial and final states are favorably trapped by the lattice light, allowing optimized transfer in agreement with the experimental observation

Metastable Feshbach Molecules in High Rotational States

We experimentally demonstrate Cs2 Feshbach molecules well above the dissociation threshold, which are stable against spontaneous decay on the timescale of one second. An optically trapped sample of ultracold dimers is prepared in an l-wave state and magnetically tuned into a region with negative binding energy. The metastable character of these molecules arises from the large centrifugal barrier in combination with negligible coupling to states with low rotational angular momentum. A sharp onset of dissociation with increasing magnetic field is mediated by a crossing with a g-wave dimer state and facilitates dissociation on demand with a well defined energy.Comment: 4 pages, 5 figure

<Contributed Talk 15>An Energy Harvester for Broadband Vibrations

[Date] November 28 (Mon) - December 2 (Fri), 2011: [Place] Kyoto University Clock Tower Centennial Hall, Kyoto, JAPA

Rydberg atom mediated polar molecule interactions: a tool for molecular-state conditional quantum gates and individual addressability

We study the possibility to use interaction between a polar molecule in the ground electronic and vibrational state and a Rydberg atom to construct two-qubit gates between molecular qubits and to coherently control molecular states. A polar molecule within the electron orbit in a Rydberg atom can either shift the Rydberg state, or form Rydberg molecule. Both the atomic shift and the Rydberg molecule states depend on the initial internal state of the polar molecule, resulting in molecular state dependent van der Waals or dipole-dipole interaction between Rydberg atoms. Rydberg atoms mediated interaction between polar molecules can be enhanced up to $10^{3}$ times. We describe how the coupling between a polar molecule and a Rydberg atom can be applied to coherent control of molecular states, specifically, to individual addressing of molecules in an optical lattice and non-destructive readout of molecular qubits

Inducing Transport in a Dissipation-Free Lattice with Super Bloch Oscillations

Particles in a perfect lattice potential perform Bloch oscillations when subject to a constant force, leading to localization and preventing conductivity. For a weakly-interacting Bose-Einstein condensate (BEC) of Cs atoms, we observe giant center-of-mass oscillations in position space with a displacement across hundreds of lattice sites when we add a periodic modulation to the force near the Bloch frequency. We study the dependence of these "super" Bloch oscillations on lattice depth, modulation amplitude, and modulation frequency and show that they provide a means to induce linear transport in a dissipation-free lattice. Surprisingly, we find that, for an interacting quantum system, super Bloch oscillations strongly suppress the appearance of dynamical instabilities and, for our parameters, increase the phase-coherence time by more than a factor of hundred.Comment: 4 pages, 5 figure

A real parametric characterisation of ex-service compressor blade leading edges

In-service the degradation of compressor blade leading edges can have a disproportional effect on compressor efficiency. The high surface curvature in this region makes quantifying the surface finish of this sensitive and prominent region difficult. An automated technique that characterises the roughness of the leading edge in terms of areal parameters is presented. A set of ex-service blades of differing sizes are used to demonstrate the procedure. Improved characterisation of this blade region will allow engine companies to better understand where in-service deterioration has the greatest effect and inform them as to how they might minimise the effect. The present work shows that the leading edges of compressor blades exhibit a significantly higher characteristic surface roughness than other blade regions, and the spatial distribution of peaks in this characteristic roughness is detailed. In addition it is shown that peak wear and roughness are not uniformly correlated

Preparation and spectroscopy of a metastable Mott insulator state with attractive interactions

We prepare and study a metastable attractive Mott insulator state formed with bosonic atoms in a three-dimensional optical lattice. Starting from a Mott insulator with Cs atoms at weak repulsive interactions, we use a magnetic Feshbach resonance to tune the interactions to large attractive values and produce a metastable state pinned by attractive interactions with a lifetime on the order of 10 seconds. We probe the (de-)excitation spectrum via lattice modulation spectroscopy, measuring the interaction dependence of two- and three-body bound state energies. As a result of increased on-site three-body loss we observe resonance broadening and suppression of tunneling processes that produce three-body occupation.Comment: 7 pages, 6 figure