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Rüsselsheim, Germany

Reiche S.,RheinMain University | Sparke K.,RheinMain University
Acta Horticulturae | Year: 2015

Skills shortage due to the demographic change is a major future concern in horticultural vocations. Horticulture's weaknesses in the competition for young employees are the image of this profession, comparable low remuneration and working conditions with physical strain. A central competitive edge in this context is job commitment. The aim of this project was the development of a management information system for effectively measuring, managing and developing job commitment. Today's commitment research is based on the importance performance analysis, a method to identify gaps between target and actual business. A paper and pencil study among n=446 vocational school and technical college students of German horticulture was conducted. Respondents were asked for overall commitment and importance and satisfaction of 32 aspects of different subjects of working conditions. The results are displayed in a management grid. The resulting grid quadrants were named "motivators", "opportunities", "necessities" and "possible savings". It can be shown that most aspects in the necessities quadrant perform above average. Motivators to increase job commitment are predominantly aspects of the topics "work activities" and "superior/head", whereas satisfaction especially of the "superior/head" aspects is average or under average. An important insight is that many aspects in the opportunities quadrant perform below average. These aspects belonging to leadership and organisation in horticultural companies can be regarded as lost occasions because improvements in these areas are economical and only dependent on behavioural changes in management. Altogether, the approach offers perspectives for advances in job commitment to strengthen the horticultural sector for the competition for qualified workers. Source

Nahar Q.,University of Western Ontario | Fleissner F.,University of Western Ontario | Fleissner F.,RheinMain University | Shuster J.,University of Western Ontario | And 8 more authors.
Journal of Biophotonics | Year: 2014

Waveguide Evanescent Field Scattering (WEFS) microscopy is introduced as a new and simple tool for label-free, high contrast imaging of bacteria and bacteria sensors. Bacterial microcolonies and single bacteria were discriminated both by their bright field images and by their evanescent scattering intensity. By comparing bright field images with WEFS images, the proportion of planktonic: sessile (i.e., "floating": attached) bacteria were measured. Bacteria were irradiated with UV light, which limited their biofilm forming capability. A quantitative decrease in attachment of individual, sessile bacteria and in attached, microcolony occupied areas was easily determined within the apparent biofilms with increasing UV dose. WEFS microscopy is an ideal tool for providing rapid quantitative data on biofilm formation. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Source

Luderschmidt J.,RheinMain University | Haubner N.,RheinMain University | Lehmann S.,RheinMain University | Dorner R.,RheinMain University
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) | Year: 2013

Interactive surfaces (IS) like digital tabletop systems offer a cornucopia of input possibilities like touch gestures or interaction with physical objects. Additionally, multiple users can interact simultaneously allowing for a collaborative setting. These aspects have increased the complexity of designing such interfaces as compared to WIMP interfaces. However, existing UI design approaches fall short of taking these aspects into account and existing design approaches for IS focus on software development. We introduce the EMIL environment that allows authors of design teams to create multi-touch and tangible user interfaces. In its core, EMIL consists of a software framework that provides interaction components (for instance, widgets like images or maps as well as interaction concepts like gestures) that are especially suited for IS. Authors like UI designers collaboratively create software prototypes directly at the IS without the need to write code. For this purpose, they use and adapt the components of the software framework in an authoring application. Authors collect and retrieve information about the interaction components in a knowledge database employing a tablet computer app. In a qualitative evaluation interview, EMIL has been well received by a design team of an advertising agency. © 2013 Springer-Verlag. Source

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