The degree of electron itinerancy and shell closing in the core ionized state of transition metals probed by Auger photoelectron coincidence spectroscopy

Auger photoelectron coincidence spectroscopy APECS has been used to examine the electron correlation and itinerance effects in transition metals Cu, Ni and Co. It is shown that the LVV Auger, in coincidence with 2p photoelectrons, spectra can be represented using atomic multiplet positions if the 3d shell is localized atomic like and with a self convoluted valence band for band like itinerant materials as explained using the Cini Sawatzky model. For transition metals, the 3d band changes from band like to localized with increasing atomic number, with the possibility of a mixed behavior. Our result shows that the LVV spectra of Cu can be represented by atomic multiplet calculations, those of Co resemble the self convolution of the valence band and those of Ni are a mixture of both, consistent with the Cini Sawatzky mode

A Collaborative Learning Framework & Serious Game Development

This paper presents the overall learning process that evolved during the MASCA project (MAnaging System Change in Aviation?EU FP7 funded project (2010?2013), specifically focusing on the one of the key elements of the overall learning approach, the development of a serious game (SKYBOARD) and the role the game played in supporting the implementation of airport collaborative decision-making (A-CDM) in a major European airport. The underlying principles of the learning process was based on ongoing and collaborative learning in the workplace, with each phase of learning involving preparation and guidance, collaborative learning, consolidation of that learning and practically focused next steps that can be deployed to support overall change management. The aim of SKYBOARD was to aid communication and collaboration when introducing A-CDM, and thereby supporting the cultural change that comes with this introduction. The development of SKYBOARD was based upon an initial training needs analysis and an iterative development and implementation approach at a major European airport. The research demonstrated that we are at the beginning of a fundamental shift in the way both learning and working is happening in organisations. Therefore, the establishment of a collaborative learning process and integrated learning package needs to focus on supporting continuous performance improvement and learning (competency and capability at all levels) and to ensure this overall learning is fully aligned to the overall strategic blueprint of the organisation. The evaluation of SKYBOARD demonstrated that serious games can support collaborative learning and enhanced communication and that such games should be key resource in any learning environment and proved to be a highly effective support to the implementation of A-CDM in this case

Artemisinin-based combination treatment for malaria in Africa: no perfect solutions.

Drug-resistant malaria is one of the major public health challenges facing Africa. The spread of resistance to chloroquine and subsequently sulfadoxine pyrimethamine (SP) means that the era of inexpensive monotherapy for malaria is passing or has passed. There is widespread acceptance that a combination of 2 antimalarial drugs should now become standard treat-ment policy, as it is for tuberculosis and HIV infection. There has been a strong push, which has sometimes run ahead of the evidence, to encourage countries in Africa to adopt artemisinin-based com-bination treatment (ACT) as first-lin

The Development of an Air Injection System for the Forced Response Testing of Axial Compressors

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Angle resolved time of flight spectroscopy applied to multi bunch operation at MAX lab a design study

Angle-resolved time-of-flight (ARTOF) spectrometers have found use in a number of applications, including ARPES. However, the fundamental requirement of an external start trigger matching the read-out time of the instrument limits its usability at many storage rings. Hitherto all reported experiments have been performed at storage rings capable of running in single-bunch mode. To eliminate this restriction, we propose a method where a pulsed electronic gate is introduced to allow for ARTOF usage at normal multi-bunch operation of the MAX II storage ring. This paper will show the working principle and outline the design for this technique