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Business model innovation in strategic alliances: a multi‐layer perspective
(2020-04-17)
Business model innovation (BMI) has recently become a topic of interest for research as well as corporate practice. However, we lack specific insights into actors, drivers, and different forms of BMI as the concept is by now mainly addressed in a very general way. In this paper, we analyze how BMI takes place in strategic alliances with the focus of enhancing the recent knowledge about BMI by developing a concept that links firm‐level BMI with alliance‐driven innovation of business models. Against the background of ...
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Lower-extremity resistance training on unstable surfaces improves proxies of muscle strength, power and balance in healthy older adults: a randomised control trial
(2016-11-24)
Background:
It is well documented that both balance and resistance training have the potential to mitigate intrinsic fall risk factors in older adults. However, knowledge about the effects of simultaneously executed balance and resistance training (i.e., resistance training conducted on unstable surfaces [URT]) on lower-extremity muscle strength, power and balance in older adults is insufficient. The objective of the present study was to compare the effects of machine-based stable resistance training (M-SRT) and ...
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Beating the limits with initial correlations
(2017-11-28)
Fast and reliable reset of a qubit is a key prerequisite for any quantum technology. For real world open quantum systems undergoing non-Markovian dynamics, reset implies not only purification, but in particular erasure of initial correlations between qubit and environment. Here, we derive optimal reset protocols using a combination of geometric and numerical control theory. For factorizing initial states, we find a lower limit for the entropy reduction of the qubit as well as a speed limit. The time-optimal solution ...
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Static Grid Equivalent Models Based on Artificial Neural Networks
(2021-12-30)
Power systems are rapidly and significantly changing due to the increasing penetration of distributed energy resources (DERs) and the rapid growth of widespread grid interconnections. An increasing number of grid operators is thus interested in the reduced equivalent representation of a large, interconnected power system to reduce the amount of required computational resources and data exchange, e.g., between grid operators. However, state-of-the-art grid equivalents become more and more inapplicable since they are ...
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Heterogeneous Winter Wheat Populations Differ in Yield Stability Depending on their Genetic Background and Management System
(2019-11-05)
Twelve winter wheat composite cross populations (CCPs), based on three genetic backgrounds and maintained at the University of Kassel, Germany, under both organic and conventional management, were assessed for yield performance and stability in comparison to two commercial varieties over eight and 10 experimental years. A number of stability parameters were chosen in order to identify populations with either adaptation to specific environments or broad adaptation across environments. The genetic effects of the CCP ...
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Growth of C-S-H phases on different metallic surfaces
(2022-02-21)
The influence of reinforcement, especially fibre reinforcement in ultra-high performance concrete is strongly dependent on the bonding (adhesive, shear and friction bond) between metallic surface and cementitious matrix. As usually straight fibres are used for fibre reinforcement and, thus, no significant mechanical bonding is existent, the adhesive bond is particularly important. Previous studies stated that the adhesive bonding behaviour between metallic materials and cementitious matrix strongly depends on the ...
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Strategies towards evaluation beyond scientific impact
(Librello, 2015)
Various research fields, like organic agricultural research, are dedicated to solving real-world problems and contributing to sustainable development. Therefore, systems research and the application of interdisciplinary and transdisciplinary approaches are increasingly endorsed. However, research performance depends not only on self-conception, but also on framework conditions of the scientific system, which are not always of benefit to such research fields. Recently, science and its framework conditions have been ...
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Bewegte Lebenswelten – Einblicke in Raum- und Bewegungserleben in Ganztagsschulen aus Sicht von Kindern
(2020-11-17)
Vor dem Hintergrund des flächendeckenden Ausbaus ganztägiger Bildungsangebote als einem der größten bildungspolitischen Reformprojekte in Deutschland und des Diskurses zur Institutionalisierung von Kindheit bestand das Ziel der diesem Beitrag zugrundeliegenden Studie darin, mit einem partizipativ ausgerichteten Mixed-Methods-Design die Perspektive der Kinder auf Ganztagsschule als ihren Lebensort zu beleuchten. Mit einer aneignungstheoretischen Perspektive auf das Erleben von Raum und Bewegung in vorwiegend informellen ...
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Agil, hierarchiefrei und selbstorganisiert im New Work oder überwältigt von Systemstrukturen und unterdrückten gruppendynamischen Prozessen im New Office
(2020-11-03)
Dieser Beitrag in der Zeitschrift Gruppe. Interaktion. Organisation. (GIO) stellt eine explorative qualitative Studie zum Erleben von Sinn und Bindung durch Mitarbeitende in agilen New Work Umwelten vor, indem sie Wirkungen von Selbstorganisation, flachen Hierarchien, und elaborierten agilen Systemarchitekturen im Gegenlicht von persönlichen Beziehungen, gruppendynamischen Prozessen und Aspekten des psychologischen Empowerments betrachtet.
Globalisierung, Digitalisierung und demographischer Wandel lassen Wettbewerb ...
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No Evidence for Ionotropic Pheromone Transduction in the Hawkmoth Manduca sexta
(2016-11-09)
Insect odorant receptors (ORs) are 7-transmembrane receptors with inverse membrane topology. They associate with the conserved ion channel Orco. As chaperon, Orco maintains ORs in cilia and, as pacemaker channel, Orco controls spontaneous activity in olfactory receptor neurons. Odorant binding to ORs opens OR-Orco receptor ion channel complexes in heterologous expression systems. It is unknown, whether this also occurs in vivo. As an alternative to this ionotropic transduction, experimental evidence is accumulating ...