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1 – 10 of over 1000Roland Eichardt, Daniel Strohmeier, Alexander Hunold, René Machts, Jens Haueisen, Gregor Oelsner, Christian B. Schmidt, Volkmar Schultze, Ronny Stolz and Uwe Graichen
The purpose of this paper is to present a simulation study using a model of a new optically pumped magnetometer sensor for application in the field of magnetoencephalography. The…
Abstract
Purpose
The purpose of this paper is to present a simulation study using a model of a new optically pumped magnetometer sensor for application in the field of magnetoencephalography. The effects of sensor distance and orientation on the measurement information and the sensitivity to neuronal sources are investigated. Further, this paper uses a combinatorial optimization approach for sensor placement to measure spontaneous activity in the region of the occipital cortex.
Design/methodology/approach
This paper studies the effects of sensor distance and orientation on sensitivity to cortical sources and measurement information. A three-compartment model of the head, using the boundary element method, is applied. For sensor setup optimization, a combinatorial optimization scheme is developed.
Findings
The sensor distance to sources considerably affects the sensitivity and the retrieved information. A specific arrangement of four sensors for measuring spontaneous activity over the occipital part of the head is optimized by effectively avoiding position conflicts.
Research limitations/implications
Individual head models, as well as more detailed noise and signal models, will increase the significance for specific-use cases in future studies.
Originality/value
Effects of sensor distance and orientation are specifically evaluated for a new optically pumped magnetometer. A discrete optimization scheme for sensor optimization is introduced. The presented methodology is applicable for other sensor characterization and optimization problems. The findings contribute significantly to the development of new sensors.
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EU/GERMANY: Roundup reversal may test coalition will
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DOI: 10.1108/OXAN-ES226119
ISSN: 2633-304X
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Geographic
Topical
Christian Lechner and Tobias Schmidt
How do soccer clubs seize entrepreneurial opportunities under the constraint of prior joint value (bilateral) creation but unilateral value exploitation? New propositions are…
Abstract
How do soccer clubs seize entrepreneurial opportunities under the constraint of prior joint value (bilateral) creation but unilateral value exploitation? New propositions are developed that complement the resource-based perspective.
The summit’s avowed aim was to renew the EU-US ‘Transatlantic partnership’, including committing to upholding the international rules-based order built around the UN. It called…
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DOI: 10.1108/OXAN-DB262202
ISSN: 2633-304X
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Geographic
Topical
This unblocks one of several obstacles to countrywide elections scheduled for October, as the Federation court will have a role to play in the electoral process. There are…
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DOI: 10.1108/OXAN-DB272159
ISSN: 2633-304X
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Geographic
Topical
Bosnian Serb representatives are boycotting state institutions over the genocide law imposed by departing High Representative Valentin Inzko. Their leader, Milorad Dodik, is…
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DOI: 10.1108/OXAN-DB263934
ISSN: 2633-304X
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Topical
This volume, sponsored by the European Society for the History of Economic Thought, was shaped at the University of Bologna where earlier drafts of the 16 essays it contains were…
Abstract
This volume, sponsored by the European Society for the History of Economic Thought, was shaped at the University of Bologna where earlier drafts of the 16 essays it contains were presented at a Conference on institutions, markets and the division of labor. Like any collection of essays, especially if they come after a conference, the quality of the contributions varies, but it must be said that the average exceeds the usual standard. Moreover, although the title “Knowledge, Social Institutions and the Division of Labour” is broad enough to accommodate a diversity of subjects, there is a degree of congruity among the different contributions. The book is divided in three parts, “Rationality, Communication and Connecting Principles” (comprising four essays), “Social Interaction and Moral Sentiments” (comprising five essays) and “Division of Labour, Patterns of Interdependence and Social Institutions” (comprising seven essays).
In Germany structural change and aggravated international competition have been accompanied by a declining willingness of enterprises to offer apprenticeships. Young people with…
Abstract
Purpose
In Germany structural change and aggravated international competition have been accompanied by a declining willingness of enterprises to offer apprenticeships. Young people with low levels of qualification increasingly end up in courses at vocational schools that offer few transitions to regular VET or the labour market. This paper aims to show how the German VET (vocational education and training) system turned from an inclusive scheme to a selective scheme regarding young people with low levels of qualifications from basic schooling.
Design/methodology/approach
The paper presents empirical results of an evaluation study on the background of the structural changes in German VET.
Findings
The empirical results show exemplarily the low connection between these courses and the apprenticeships in companies.
Research limitations/implications
The results are exemplary for one type of course at vocational schools. The results cannot empirically illustrate causalities between the structure of German VET system and the diminishing possibilities of youth with low levels of qualification but secondary data presented in this paper support the assumption of an increasingly selective German VET system.
Social implications
The article provides information about social selectivity in contemporary German VET.
Originality/value
The article not only recapitulates the current German discussions about structural problems and reforms concerning the VET‐system, but also draws conclusions from the German situation about possibilities of apprenticeship‐based pathways for youths with low levels of qualifications in other countries.
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