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Das forschungsgetriebene Lehrformat "Projektorientiertes Lernen" wird im Masterprogramm der Fakultät Angewandte Chemie der Hochschule Reutlingen von uns seit nunmehr einer Dekade eingesetzt und stetig weiter entwickelt. Dieses Format hat sich besonders bewährt, um methodische und fachliche Kompetenzen nachhaltig zu vermitteln. Es war uns ein Anliegen, auch anderen an der praxisorientierten Ausgestaltung der Lehre Interessierten unsere Erfahrungen mitzuteilen und unsere Vorgehensweise konkret vorzustellen. Dazu haben wir unsere bisher verwendeten Dokumente und Veröffentlichungen zu diesem Thema redigiert und stellen sie in dem vorliegenden Buch vor. In diesem von uns als "Kurshandbuch" für Anwender gedachten Werk finden sich unsere über Jahre gesammelten Erfahrungen mit der Organisation eines solchen Lehr- und Lernformats.
The increasing heterogenecity of students at German Universities of Applied Sciences and the growing importance of digitization call for a rethinking of teaching and learning within higher education. In the next years, changing the learning ecosystem by developing and reflecting upon new teaching and learning techniques using methods of digitalization will be both - most relevant and very challenging. The following article introduces two different learning scenarios, which exemplify the implementation of new educational models that allow discontinuity of time and place, technology and process in teaching and learning. Within a blended learning apporach, the first learning scenario aims at adapting and individualizing the knowledge transfer in the course Foundations of Computer Science by providing knowledge individually and situation-specifically. The second learning scenario proposes a web-based tool to facilitate digital learning environments and thus digital learning communities and the possibility of computer-supported learning. The overall aim of both learning scenarios is to enhance learning for diverse groups by providing a different smart learning ecosystem in stepping away from a teacher-based to a student-centered approach. Both learning scenarios exemplarily represent the educational vision of Reutlingen University - its development into an interactive university.
Sowohl die Zahl als auch die Relevanz gemeinnütziger Vereine in und für Deutschland ist immens. Gleichwohl erstaunt, dass die Rechnungslegung gemeinnütziger Vereine nur rudimentär geregelt ist und in der Forschungspraxis bisher eher wenig beleuchtet wird. Vor allem für die oftmals nur ehrenamtlich tätigen Vereinsvorstände stellt dies eine Herausforderung dar. Der vorliegende Beitrag schafft einen Überblick über die aktuelle Situtation der Vereinsrechnungslegung in Deutschland und erhebt im Rahmen einer empirischen Untersuchung die aktuellen Herausforderungen. Aus den Ergebnissen lassen sich wichtige Implikationen für die rechnungslegenden Vereine, die Adressaten dieser Rechnungslegung, den Gesetzgeber und die Prüfer der Berichte ableiten.
Nachhaltige Managementmodelle sind auf Erfüllung der Triple Bottom Line ausgerichtet: Unternehmen adressieren Energie- und Co2-Effizienz (ökologisch), Arbeitsschutz oder Arbeitslosenquoten (sozial) sowie mögliche Wachstumspotenziale, die durch Nachhaltigkeit zu erreichen sind, um das eigene Überleben des Unternehmens am Markt zu sichern (ökonomisch). Daneben stehen die 17 Sustainable Development Goals (SDGs), die bis 2030 als Leitlinie nachhaltigen Wirtschaftens weltweit gelten und in nationale Gesetzgebung überführt wurden. Dieser Beitrag entwickelt ein Managementmodell, das Unternehmen dabei unterstützt, relevante SDGs zu identifizieren und Handlungsempfehlungen abzuleiten. Aufbauend auf einer nachhaltigen Supply Chain ordnet das Modell die SDGs den Dimensionen der Triple Bottom Line zu, um kurz eine Checkliste möglicher zu berücksichtigender Nachhaltigkeitsmaßnahmen im Kontext des Behaviour Change Modells zu erarbeiten. Zurückgreifend auf die Empfehlungen der Vereinten Nationen wird ein nachhaltiger Managementansatz eingeführt, der Unternehmen dazu befähigt, Governance, Transparenz und Engagement in ihrer Supply Chain zu implementieren.
Defining the antecedents of experience co-creation as applied to alternative consumption models
(2019)
Purpose – The purpose of this paper is to propose a conceptual framework of experience co-creation that captures the multi-dimensionality of this construct, as well as a research process for defining of the antecedents of experience co-creation.
Design/methodology/approach – The framework of experience co-creation was conceptualized by means of a literature review. Subsequently, this framework was used as the conceptual basis for a qualitative content analysis of 66 empirical papers investigating alternative consumption models (ACMs), such as renting, remanufacturing, and second-hand models.
Findings – The qualitative content analysis resulted in 12 categories related to the consumer and 9 related to the ACM offerings that represent the antecedents of experience co-creation. These categories provide evidence that, to a large extent, the developed conceptual framework allows one to capture the multi-dimensionality of the experience co-creation construct.
Research limitations/implications – This study underscores the understanding of experience co-creation as a function of the characteristics of the offering – which are, in turn, a function of the consumers’ motives as determined by their lifeworlds – as well as to service design as an iterative approach to finding, creating and refining service offerings.
Practical implications – The investigation of the antecedents of experience co-creation can enable service providers to determine significant consumer market conditions for forecasting the suitability and viability of their offerings and to adjust their service designs accordingly.
Originality/value – This paper provides a step toward the operationalization of the dimension-related experience co creation construct and presents an approach to defining the antecedents of experience co-creation by considering different research perspectives that can enhance service design research.
Manufacturing has to adapt to changing situations in order to stay competitive.It demands a flexible and easy-to-use integration of production equipment and ICT systems. The contribution of this paper is the presentation of the implementation of the Manufacturing Integration Assistant (MIALinx). The integration steps range from integrating sensors over collecting and rule-based processing of sensor information to the execution of required actions. Furthermore, we describe the implementation of MIALinx by commissioning it in a manufacturing environment to retrofit legacy machines for Industrie 4.0. Finally, we validate the suitability of our approach by applying our solution in a medium-size company.
We present a compact battery charger topology for weight and cost sensitive applications with an average output current of 9A targeted for 36V batteries commonly found in electric bicycles. Instead of using a conventional boost converter with large DC-link capacitors, we accomplish PFC-functionality by shaping the charging current into a sin²-shape. In addition, a novel control scheme without input-current sensing is introduced. A-priori knowledge is used to implement a feed-forward control in combination with a closed-loop output current control to maintain the target current. The use of a full-bridge/half bridge LLC converter enables operation in a wide input-voltage range.
A fully featured prototype has been built with a peak output power of 1050W. An average output power of 400W was measured, resulting in a power density of 1.8 kW/dm³. At 9A charging current, a power factor of 0.96 was measured and the efficiency exceeds 93% on average with passive rectification.
The impact of pulse charging has been evaluated on a 400Wh battery which was charged with the proposed converter as well as CC-CV-charging for reference. Both charging schemes show similar battery surface temperatures.
Age-dependent migratory behavior of human endothelial cells revealed by substrate microtopography
(2019)
Cell migration is part of many important in vivo biological processes and is influenced by chemical and physical factors such as substrate topography. Although the migratory behavior of different cell types on structured substrates has already been investigated, up to date it is largely unknown if specimen's age affects cell migration on structures. In this work, we investigated age-dependent migratory behavior of human endothelial cells from young (≤ 31 years old) and old (≥ 60 years old) donors on poly(dimethylsiloxane) microstructured substrates consisting of well-defined parallel grooves. We observed a decrease in cell migration velocity in all substrate conditions and in persistence length perpendicular to the grooves in cells from old donors. Nevertheless, in comparison to young cells, old cells exhibited a higher cell directionality along grooves of certain depths and a higher persistence time. We also found a systematic decrease of donor age dependent responses of cell protrusions in orientation, velocity and length, all of them decreased in old cells. These observations lead us to hypothesize a possible impairment of actin cytoskeleton network and affected actin polymerization and steering systems, caused by aging.
Information technology (IT) plays an essential role in organizational innovation adoption. As such, IT governance (ITG) is paramount in accompanying IT to allow innovation. However, the traditional concept of ITG to control the formulation and implementation of IT strategy is not fully equipped to deal with the current changes occurring in the digital age. Today’s ITG needs an agile approach that can respond to changing dynamics. Consequently, companies are relying heavily on agile strategies to secure better company performance. This paper aims to clarify how organizations can implement agile ITG. To do so, this study conducted 56 qualitative interviews with professionals from the banking industry to identify agile dimensions within the governance construct. The qualitative evaluation uncovered 46 agile governance dimensions. Moreover, these dimensions were rated by 29 experts to identify the most effective ones. This led to the identification of six structure elements, eight processes, and eight relational mechanisms.