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"Wer nicht vielfältig denkt, denkt einfältig". Mit diesem Spruch machen Studierende der Hochschule Reutlingen in einem Videoclip auf das Thema Diversity aufmerksam. Doch was verstehen wir eigentlich darunter? Seit September letzten Jahres ist Professorin Dr. Gabriela Tullius Vizepräsidentin der Hochschule Reutlingen und widmet sich unter anderem diesem Bereich. GEA-Campus hat nachgefragt, worum es bei Diversity geht und warum dieser Bereich die Hochschule beschäftigt.
Ereignisse, Aktivitäten und Veränderungen 2005:
- Umstellung auf elektronische Erwerbung
- Umgestaltung des Lesesaals
- Neugestaltung der Homepage
- Erweiterung der Öffnungszeiten um 8 Stunden pro Woche
- Erhöhung der Ausleihzahlen um 7 Prozent
- Einrichtung eines Kopierraums
- Durchführung einer Benutzerumfrage
- Organisation einer Ausstellung anlässlich der 150-Jahr-Feier der Hochschule Reutlingen
Durch die Einnahmen aus Studiengebühren konnten die Erwerbungsausgaben der Bibliothek um 75 Prozent gegenüber dem Vorjahr gesteigert werden. Insgesamt wurden 50 Prozent mehr Bücher gekauft als im Jahr zuvor. Dadurch konnte die Literaturversorgung der Hochschulangehörigen erheblich verbessert werden, was sich an den expandierenden Nutzungszahlen erkennen lässt. Im Jahr 2007 verzeichnete die Bibliotheksstatistik 15 Prozent mehr aktive Nutzer und 15 Prozent mehr Erstausleihen als im Jahr zuvor. Trotz dieser positiven Entwicklungen hat im letzten Jahr die Zahl der Vormerkungen um 20 Prozent zugenommen. Das bedeutet, dass die benötigte Literatur sehr häufig verliehen und bei Bedarf nicht verfügbar ist. Im gleichen Zeitraum stieg die Zahl der Fernleihbestellungen um 26 Prozent. Im Berichtsjahr wurden erstmals 1600 E-Books erworben und im Campusnetz bereit gestellt. In Kooperation mit dem Bibliotheksservicezentrum wurde ein Hochschulschriftenserver eingerichtet, der es den Angehörigen beider Hochschulen ermöglicht, ihre Publikationen elektronisch zu veröffentlichen.
Die Medienausgaben der Hochschule Reutlingen nahmen im Vergleich zum Vorjahr um 18 Prozent zu, wobei sich der Schwerpunkt zunehmend von den Printmedien auf die elektronischen Medien verlagert. Bei der Pädagogischen Hochschule gingen die Ausgaben für Medien um 9 Prozent zurück. Die Nutzungszahlen der Bibliothek stiegen in allen Bereichen: Die Zahl der Erstausleihen nahm um 2 Prozent zu, die Zahl der aktiven Bibliotheksbenutzer stieg um 5 Prozent. Die Nutzung elektronischer Medien legte um 39 Prozent zu. Die Zahl der gebenden Fernleihen stieg um 1 Prozent, die der nehmenden Fernleihen sank um 8 Prozent. Diese Zahlen spiegeln die wachsende Attraktivität des Reutlinger Bibliotheksbestands wider. Im Berichtsjahr wurden zwei Projekte begonnen: Zum einen die Ausstattung des Freihandbestands mit RFID-Etiketten, zum anderen die Installation einer Suchmaschine zur Optimierung der Recherche.
This article reviews the literature on Christmas economics. First, we present an overall picture of the debate on the potential welfare loss of gift-giving and we show strategies that reduce the potential welfare loss and might increase the number of presents received. Second, we discuss the effect of Christmas on prices and the business cycle. We provide evidence that at Christmas stock prices and airfares increase, while food prices decrease.
Several ionic liquids are excellent solvents for cellulose. Starting from that finishing of PET fabrics with cellulose dissolved in ionic liquids like 1-ethyl 3-methyl imidazolium acetate, diethylphosphate and chloride, or the chloride of butyl-methyl imidazolium has been investigated. Finishing has been carried out from solutions of different concentrations, using microcrystalline cellulose or cotton and by employing different cross-linkers. Viscosity of solutions has been investigated for different ionic liquids,concentrations, cellulose sources, linkers and temperatures. Since ionic liquids exhibit no vapor pressure,simple pad-dry-cure processes are excluded. Before drying the ionic liquid has to be removed by a rinsing step. Accordingly rinsing with fresh ionic liquid followed by water or the direct rinsing with waterhave been tested. The amount of cellulose deposited has been investigated by gravimetry, zinc chlorideiodine test as well as reactive dyeing. Results concerning wettability, water up-take, surface resistance,wear-resistance or washing stability are presented.
The sol-gel approach offers a new class of flame retardants with a high potential for textile applications. Pure inorganic sol-gel systems do, however, typically not provide an effect sufficient for a sel-fextinguishing behavior on its own. We therefore employed compounds with nitrogen and phosphorous containing groups. Especially the combination of compounds with both elements, using the synergism, is promising for the aim to find well-applicable, environmental friendly, halogen-free flame retardants. In our approach, the sol-gel network ensured on the one hand the link to the textile as nonflammable binder. On the other hand, the sol-gel-based networks modified with functional groups containing nitrogen groups provided flame retardancy. In this way, a flame retardant finishing for textiles could be obtained by simple finishing techniques as, e.g., padding. Besides a characterization with various flame tests (e.g., according to EN ISO 15025 e protective clothing), we used a combination of cone calorimetry, thermogravimetry coupled with infrared spectroscopy analysis and scanning electron microscopy to analyze the mechanism of flame retardancy. Thus, we could show that the main mechanism is based on the formation of a protection layer. This work provides a model system for sol-gel-based flame retardants and has the potential to show the principle feasibility of the sol-gel approach in flame retardancy of textiles. It therefore lays the groundwork for tailoring sol-gel layers from newly synthesized sol-gel precursors containing nitrogen and phosphorous groups.
Background and purpose: Transapical aortic valve replacement (TAVR) is a recent minimally invasive surgical treatment technique for elderly and high-risk patients with severe aortic stenosis. In this paper,a simple and accurate image-based method is introduced to aid the intra-operative guidance of TAVR procedure under 2-D X-ray fluoroscopy.
Methods: The proposed method fuses a 3-D aortic mesh model and anatomical valve landmarks with live 2-D fluoroscopic images. The 3-D aortic mesh model and landmarks are reconstructed from interventional X-ray C-arm CT system, and a target area for valve implantation is automatically estimated using these aortic mesh models.Based on template-based tracking approach, the overlay of visualized 3-D aortic mesh model, land-marks and target area of implantation is updated onto fluoroscopic images by approximating the aortic root motion from a pigtail catheter motion without contrast agent. Also, a rigid intensity-based registration algorithm is used to track continuously the aortic root motion in the presence of contrast agent.Furthermore, a sensorless tracking of the aortic valve prosthesis is provided to guide the physician to perform the appropriate placement of prosthesis into the estimated target area of implantation.
Results: Retrospective experiments were carried out on fifteen patient datasets from the clinical routine of the TAVR. The maximum displacement errors were less than 2.0 mm for both the dynamic overlay of aortic mesh models and image-based tracking of the prosthesis, and within the clinically accepted ranges. Moreover, high success rates of the proposed method were obtained above 91.0% for all tested patient datasets.
Conclusion: The results showed that the proposed method for computer-aided TAVR is potentially a helpful tool for physicians by automatically defining the accurate placement position of the prosthesis during the surgical procedure.
Anhaltend hohe Mitarbeitermotivation ist die zentrale Voraussetzung für erfolgreichen Vertrieb. Doch viel zu häufig versuchen Unternehmen, ihre Vertriebsmitarbeiter allein durch Einzelimpulse und durchsichtige Anreizsysteme zu motivieren. Dies kann nicht gelingen. Stattdessen sind eine langfristige Perspektive und ein intelligenter Mix verschiedener Instrumente nötig.
Über mehrere Monate porträtierten sich Masterstudierende von drei Kontinenten gegenseitig über Skype. Mittels einer besonderen Zeichentechnik, der Blindzeichnung, sind zahlreiche Porträts entstanden, deren Wirkung im öffentlichen Raum und in sozialen Netzwerken untersucht wurden. Diese Porträts sind die Basis für künstlerische Arbeiten in allen Bereichen und Medien der Bildenden Kunst. Das Forschungsprojekt SkypeLab schafft so eine Verbindung der traditionellen künstlerischen Techniken mit aktuellen digitalen Technologien.
Kundenforschungsprojekte sind häufig durch einen beschränkten Fokus auf bestimmte Untersuchungsobjekte, Forschungsdesigns und Datenanalyseverfahren geprägt. Leider ist das häufig zu beobachtende Standardvorgehen nicht immer korrekt und liefert in vielen Fällen sogar fehlerhafte Ergebnisse. Die Diskussion des optimalen Untersuchungsobjekts und des geeigneten Untersuchungsdesigns sind Gegenstand des ersten Teils dieses Beitrages.
Das in Kundenforschungsprojekten häufig zu beobachtende Standardvorgehen liefert oftmals fehlerhafte Ergebnisse. Wir plädieren daher für einen "Schritt zurück", um einen ganzheitlichen Blick auf den Baukasten der Kundenforschungsinstrumente zu ermöglichen. Aufbauend auf dem ersten Beitrag in WiSt-Heft Nr. 4/2016, S. 188–193, in dem die Ausgangslage beschrieben und die ersten beiden Dimensionen der Kundenanalyse (Objekt der Forschung, und Forschungsdesign) diskutiert wurden, werden im vorliegenden zweiten Teil Aspekte der Datenanalyse thematisiert.
Current techniques for chromosome analysis need to be improved for rapid, economical identification of complex chromosomal defects by sensitive and selective visualisation. In this paper, we present a straightforward method for characterising unstained human metaphase chromosomes. Backscatter imaging in a dark-field setup combined with visible and short near-infrared spectroscopy is used to monitor morphological differences in the distribution of the chromosomal fine structure in human metaphase chromosomes. The reasons for the scattering centres in the fine structure are explained. Changes in the scattering centres during preparation of the metaphases are discussed. FDTD simulations are presented to substantiate the experimental findings. We show that local scattering features consisting of underlying spectral modulations of higher frequencies associated with a high variety of densely packed chromatin can be represented by their scatter profiles even on a sub-microscopic level. The result is independent of the chromosome preparation and structure size. This analytical method constitutes a rapid, costeffective and label-free cytogenetic technique which can be used in a standard light microscope.
The purpose of this paper is to examine the relationship between the consumers’ perception of sustainability and the application of a QR-code in stores with the focus on the information searching behavior regarding sustainable aspects. An online questionnaire was conducted with fashion students at Reutlingen University: in total, 65 students participated in the survey. Paired samples t-test and other statistical analyses were applied to test research questions. Apart from this, the research paper is based on a literature review. Furthermore, the decision was taken to use a projective method in the form of a dummy fashion fTRACE website. Key findings of the survey are that participants give sustainable aspects a higher importance with a QR-code than without one. Participants who prefer a product with detailed information experience a “positive shopping feeling” when provided with transparency via a QR-code. “Origin”, “production” and “quality” were rated of higher importance by those participants. These findings suggest that, transparency provided through the application of a QR-Code in stores influences the consumers’ perception of sustainability. Due to the small sample size of participants (65) in the study, findings of this research not generalizable to a larger population. This paper focused on the consumers’ information searching behavior regarding sustainable aspects, limiting its findings to impacts on perception of sustainability. Further research is therefore recommended.
Methacrylated gelatin and mature adipocytes are promising components for adipose tissue engineering
(2016)
In vitro engineering of autologous fatty tissue constructs is still a major challenge for the treatment of congenital deformities, tumor resections or high-graded burns. In this study, we evaluated the suitability of photo-crosslinkable methacrylated gelatin (GM) and mature adipocytes as components for the composition of three-dimensional fatty tissue constructs. Cytocompatibility evaluations of the GM and the photoinitiator Lithium phenyl-2,4,6 trimethylbenzoylphosphinate (LAP) showed no cytotoxicity in the relevant range of concentrations. Matrix stiffness of cell-laden hydrogels was adjusted to native fatty tissue by tuning the degree of crosslinking and was shown to be comparable to that of native fatty tissue. Mature adipocytes were then cultured for 14 days within the GM resulting in a fatty tissue construct loaded with viable cells expressing cell markers perilipin A and laminin. This work demonstrates that mature adipocytes are a highly valuable cell source for the composition of fatty tissue equivalents in vitro. Photo-crosslinkable methacrylated gelatin is an excellent tissue scaffold and a promising bioink for new printing techniques due to its biocompatibility and tunable properties.
Despite 30 years of Electronic Design Automation, analog IC layouts are still handcrafted in a laborious fashion today due to the complex challenge of considering all relevant design constraints. This paper presents Self-organized Wiring and Arrangement of Responsive Modules (SWARM), a novel approach addressing the problem with a multi-agent system: autonomous layout modules interact with each other to evoke the emergence of overall compact arrangements that fit within a given layout zone. SWARM´s unique advantage over conventional optimization-based and procedural approaches is its ability to consider crucial design constraints both explicitly and implicitly. Several given examples show that by inducing a synergistic flow of self-organization, remarkable layout results can emerge from SWARM’s decentralized decision-making model.
New drugs serving unmet medical needs are one of the key value drivers of research-based pharmaceutical companies. The efficiency of research and development (R&D), defined as the successful approval and launch of new medicines (output) in the rate of the monetary investments required for R&D (input), has declined since decades. We aimed to identify, analyze and describe the factors that impact the R&D efficiency. Based on publicly available information, we reviewed the R&D models of major research-based pharmaceutical companies and analyzed the key challenges and success factors of a sustainable R&D output. We calculated that the R&D efficiencies of major research-based pharmaceutical companies were in the range of USD 3.2–32.3 billion (2006–2014). As these numbers challenge the model of an innovation-driven pharmaceutical industry, we analyzed the concepts that companies are following to increase their R&D efficiencies: (A) Activities to reduce portfolio and project risk, (B) activities to reduce R&D costs, and (C) activities to increase the innovation potential. While category A comprises measures such as portfolio management and licensing, measures grouped in category B are outsourcing and risk-sharing in late-stage development. Companies made diverse steps to increase their innovation potential and open innovation, exemplified by open source, innovation centers, or crowdsourcing, plays a key role in doing so. In conclusion, research-based pharmaceutical companies need to be aware of the key factors, which impact the rate of innovation, R&D cost and probability of success. Depending on their company strategy and their R&D set-up they can opt for one of the following open innovators: knowledge creator, knowledge integrator or knowledge leverager.
Organisationen sind immer mehr gefragt, auch digitale Arbeitsumgebungen bewusst zu formen. Neue Technologien und digitale Arbeitspraktiken verlagern den Ort, an dem eine gemeinsame Identität gebildet wird, zunehmend in virtuelle Räume. Bislang fokussieren sich Führungskräfte und Change Manager jedoch zu sehr auf Dinge, die sie anfassen und plastisch gestalten können. Die Autoren erörtern daher, wie Unternehmen auch in virtuellen Arbeitswelten die organisationale Identität gestalten und aufrechterhalten können, um auf diese Weise das Change Management zu unterstützen.
Organizations are the business world´s central actors, employing multiple people who pursue collective goals while linked to an external environment. This volume is the first of two books dedicated to defining current theories of organizations and their practices. The text is filled with contributions by alumni of the ESB Business School at Reutlingen University. Part I discusses contemporary organizational forms and properties, including team aspects.