Gas gain and signal length measurements with a triple-GEM at different pressures of Ar-, Kr- and Xe-based gas mixtures

We investigate the gas gain behaviour of a triple-GEM configuration in gas mixtures of argon, krypton and xenon with ten and thirty percent of carbon dioxide at pressures between 1 and 3 bar. Since the signal widths affect the dead time behaviour of the detector we present signal length measurements to evaluate the use of the triple-GEM in time-resolved X-ray imaging.Comment: 19 pages, 21 figures, revised version, accepted for publication in Nucl. Instr. and Meth.

Aligning Business Analytics Programs with Industry Required Knowledge, Skills and Abilities

This paper describes results from a topic modeling analysis of online data analytics-related job advertisements. Five distinct clusters emerged, each with a focus on different knowledge, skills and abilities (KSAs) profiles. We labelled these clusters big data, systems analysis, business, healthcare, and technical research. Identification of these clusters provides a framework that can be used by information systems and business analytics faculty to offer customized and specialized information systems and business analytics programs that prepare graduates to fill specific roles in the data ecosystem of the workplace

Grenzen der Anpassung in Österreich? TransLoss Policy Brief

Es gibt immer mehr wissenschaftliche Belege dafür, dass besonders exponierte und vulnerable natürliche und sozioökonomische Systeme durch den menschengemachten Klimawandel an Grenzen der Anpassung stoßen werden. Dadurch wird es weltweit zu gravierenden Schäden und bleibenden Verlusten kommen, die von monetärer, aber auch ideeller Natur sein können. Während im globalen Süden bereits heute Anpassungsgrenzen erreicht werden und Menschen daher mit intolerablen Risiken konfrontiert sind, stellt sich die Frage, inwiefern Anpassungsgrenzen in Europa – insbesondere in Österreich – erreicht und/oder heute bzw. zukünftig überschritten werden. There is increasing scientific evidence that particularly exposed and vulnerable natural and socio-economic systems will be pushed to the limits of adaptation by man-made climate change. This will result in serious damage and permanent losses worldwide, which can be of monetary, but also non-material nature. While in the Global South adaptation limits are already being reached and people are therefore confronted with intolerable risks, the question arises to what extent adaptation limits in Europe - especially in Austria - will be reached and/or exceeded today or in the future

Enhancing the energy resolution of resonant coherent excitation using the cooled U 89+ beam extracted from the ESR

Synopsis We report on the resonant coherent excitation (RCE) of the 2 s -2 p 3/2 transition in Li-like U 89+ with an enhanced energy resolution, which was achieved by reducing the projectiles momentum spread. The kinetic temperature of the beam was decreased by electron cooling in the ESR, and the collisional momentum broadening in the target was suppressed by the use of thin crystal (1.0 and 2.5 μm-thick). The resonance width was observed to be ∼1.4 eV in FWHM, which is three-times narrower than that from the previous work

What's at stake? A human well-being based proposal for assessing risk of loss and damage from climate change

Current scientific discourse on the assessment of loss and damage from climate change focuses primarily on what is straightforwardly quantifiable, such as monetary value, numbers of casualties, or destroyed homes. However, the range of possible harms induced by climate change is much broader, particularly as regards residual risks that occur beyond limits to adaptation. In international climate policy, this has been institutionalized within the Loss and Damage discourse, which emphasizes the importance of non-economic loss and damage (NELD). Nevertheless, NELDs are often neglected in loss and damage assessments, being intangible and difficult to quantify. As a consequence, to date, no systematic concept or indicator framework exists that integrates market-based and non-market-based loss and damage. In this perspective, we suggest assessing risk of loss and damage using a climate change risk and vulnerability assessment (CRVA) framework: the Impact Chain method. This highly adaptable method has proven successful in unraveling complex risks in socio-ecological systems through a combination of engaging (political) stakeholders and performing quantitative data analysis. We suggest expanding the framework's logic to include not only the sources but also the consequences of risk by conceptualizing loss and damage as harm to nine domains of human well-being. Our approach is consistent with the risk conceptualization by the Intergovernmental Panel on Climate Change (IPCC). Conceptualization and systematic assessment of the full spectrum of imminent loss and damage allows a more comprehensive anticipation of potential impacts on human well-being, identifying vulnerable groups and providing essential evidence for transformative and comprehensive climate risk management

Development and tests of a new prototype detector for the XAFS beamline at Elettra Synchrotron in Trieste

The XAFS beamline at Elettra Synchrotron in Trieste combines X-ray absorption spectroscopy and X-ray diffraction to provide chemically specific structural information of materials. It operates in the energy range 2.4-27 keV by using a silicon double reflection Bragg monochromator. The fluorescence measurement is performed in place of the absorption spectroscopy when the sample transparency is too low for transmission measurements or the element to study is too diluted in the sample. We report on the development and on the preliminary tests of a new prototype detector based on Silicon Drift Detectors technology and the SIRIO ultra low noise front-end ASIC. The new system will be able to reduce drastically the time needed to perform fluorescence measurements, while keeping a short dead time and maintaining an adequate energy resolution to perform spectroscopy. The custom-made silicon sensor and the electronics are designed specifically for the beamline requirements.Comment: Proceeding of the 6YRM 12th-14th Oct 2015 - L'Aquila (Italy). Accepted for publication on Journal of Physics: Conference Serie