How national curricula affect the design and transfer of a teaching-learning sequence between two educational systems: Case studies from Greece and Italy.

This empirical study investigates the main features of curricula and contexts that favor or hinder the process of transfer of a teaching-learning sequence (TLS) from the designers’ original situation to a host one. The specific research questions addressed were (RQ1) what were the changes made during the process of transfer in the new context? (RQ2) What were the similarities or differences between the national curricula and contexts that influenced the process of transfer? To answer our research questions, we chose two TLSs, one about optical properties of materials, the other about thermal conductivity, originally designed by two groups of researchers and experienced teachers in Italy and Greece, respectively. The transfer process was analyzed using the “adaptation and reinvention” model, originally developed for the management knowledge research field, while the construct of “institutional distance” was used to describe the influence of country-specific aspects on the transfer process. Data collected included background documents that describe the principles underlying the TLSs design, the decisions and changes made to the original TLSs by the hosting group, and reports on the TLS implementation in classroom practice in the original and in the host context. Content analysis was used to analyze data. Results show that the similarities between the two national curricula and interactions between the involved groups acted mainly as facilitators of the transfer process

A classical scaling theory of quantum resonances

The quantum resonances occurring with delta-kicked particles are studied with the help of a fictitious classical limit, establishing a direct correspondence between the nearly resonant quantum motion and the classical resonances of a related system. A scaling law which characterizes the structure of the resonant peaks is derived and numerically demonstrated.Comment: 4 pages, 2 Fig

Stenting in the Treatment of Acute Ischemic Stroke: Literature Review

Recanalization of acute large artery occlusions is a strong predictor of good outcome. The development of thrombectomy devices resulted in a significant improvement in recanalization rates compared to thrombolytics alone. However, clinical trials and registries with these thrombectomy devices in acute ischemic stroke (AIS) have shown recanalization rates in the range of 40–81%. The last decade has seen the development of nickel titanium self-expandable stents (SES). These stents, in contrast to balloon-mounted stents, allow better navigability and deployment in tortuous vessels and therefore are optimal for the cerebral circulation. SES were initially used for stent-assisted coil embolization of intracranial aneurysms and for treatment of intracranial stenosis. However, a few authors have recently reported feasibility of deployment of SES in AIS. The use of these devices yielded higher recanalization rates compared to traditional thrombectomy devices. Encouraged by these results, retrievable SES systems have been recently used in AIS. These devices offer the advantage of resheathing and retrieving of the stent even after full deployment. Some of these stents can also be detached in case permanent stent placement is needed. Retrievable SES are being used in Europe and currently tested in clinical trials in the United States. We review the recent literature in the use of stents for the treatment of AIS secondary to large vessel occlusion

Pseudo-classical theory for fidelity of nearly resonant quantum rotors

Using a semiclassical ansatz we analytically predict for the fidelity of delta-kicked rotors the occurrence of revivals and the disappearance of intermediate revival peaks arising from the breaking of a symmetry in the initial conditions. A numerical verification of the predicted effects is given and experimental ramifications are discussed.Comment: Shortened and improved versio

Chronic hepatitis C and health-related quality of life in patients with cognitive impairment

Revisión por pare

Cultural animation in health research: An innovative methodology for patient and public involvement and engagement

Background A significant challenge in Patient and Public Involvement and Engagement (PPIE) in health research is to include a wide range of opinions and experiences, including from those who repeatedly find themselves at the margins of society. Objective To contribute to the debate around PPIE by introducing a bottom‐up methodology: cultural animation (CA). Cultural Animation is an arts‐based methodology of knowledge co‐production and community engagement which employs a variety of creative and participatory exercises to help build trusting relationships between diverse participants (expert and non‐experts) and democratize the process of research. Design Three CA full‐day workshops for the research project “A Picture of Health.” Participants Each workshop was attended by 20‐25 participants including 4 academics, 5 retired health professionals who volunteered in the local community and 15 community members. Participants ranged in age from 25 to 75 years, and 80% of the participants were women over the age of 60. Results The CA workshops unearthed a diversity of hidden assets, increased human connectivity, led to rethinking of and co‐creating new health indicators and enabled participants to think of community health in a positive way and to consider what can be developed. Discussion Cultural animation encourages participants to imagine and create ideal pictures of health by experimenting with new ways of working together. Conclusion We conclude by highlighting the main advantages to PPIE as follows: CA provides a route to co‐produce research agendas, empowers the public to engage actively with health professionals and make a positive contribution to their community