Search
Now showing items 171-180 of 224
Aufsatz
Collaborative agroforestry to mitigate wildfires in Extremadura, Spain: land manager motivations and perceptions of outcomes, benefits, and policy needs
(2022-10-10)
Wildfires are increasing in severity, and magnitude in the Mediterranean Basin in recent years, reaching a yearly average of 450 000 ha over the last decade. Drivers include climate change, land-use change, and land abandonment. Wildfire mitigation requires landscape-level action as impact to each parcel is affected by the conditions of the others. We conducted a case study of a regional-level initiative that develops community efforts to mitigate wildfires through silvo-pastoral agroforestry systems, using an ...
Aufsatz
Performance and evolutionary adaptation of heterogeneous wheat populations
(2022-09-03)
The aim of this study was to investigate the potential of heterogeneous composite cross populations (CCPs) to increase sustainability and resilience of wheat cropping systems, a so far largely neglected approach. For this purpose, 10 CCPs originating from one CCP created in 2001 and having evolved under different environmental conditions since the F5, were compared in the F15 and F16 with 10 recently released cultivars and 10 inbred lines extracted randomly from the populations. Field trials were performed over 2 ...
Aufsatz
Revision des Lerntypenmythos durch Konzeptwechselpodcasts im Lehramtsstudium
(2022-08-03)
Der Lerntypenmythos hat eine hohe Prävalenz unter (angehenden) Lehrkräften. Forschungsergebnisse zeigen, dass solche Mythen mit Konzeptwechseltexten entkräftet werden können. In Konzeptwechseltexten werden Fehl- und Fachkonzept vergleichend gegenübergestellt, wodurch kognitive Konflikte entstehen können, die wiederum zur kritischen Reflexion des eigenen Fehlkonzepts anregen können. Ob und unter welchen Voraussetzungen diese Erkenntnisse auf das Medium Podcast übertragbar sind, ist bisher unerforscht. In diesem Beitrag ...
Aufsatz
Warum beteiligen sich Coaches an Coaching-Forschung – und warum eigentlich nicht?
(2022-07-12)
In einer Online-Umfrage befragten wir 252 Coaches und analysierten ihre Einstellung zur Coaching-Forschung, Faktoren, die ihre Einstellung beeinflussen, und wie sich ihre Haltung wiederum auf ihre Bereitschaft zur Teilnahme an Coaching-Forschung auswirkt. Die Faktorenanalyse ergab vier verschiedene Einstellungsfaktoren: (1) Mehrwert und (2) Schaden durch Coaching-Forschung, (3) Effektivitätszweifel, (4) Aufwand im Zusammenhang mit der Teilnahme an Coaching-Forschung. Die Erfahrung der Coaches (d. h. Novizen vs. ...
Aufsatz
Industry 4.0-driven operations and supply chains for the circular economy: a bibliometric analysis
(2022-06-01)
The Industry 4.0 (I4.0) concept paves the way for the circular economy (CE) as advanced digital technologies enable sustainability initiatives. Hence, I4.0-driven CE-oriented supply chains (SCs) have improved sustainable performance, flexibility and interoperability. In order to smoothly embrace circular practices in digitally enabled SCs, quantitative techniques have been identified as crucial. Therefore, the intersection of I4.0, CE, supply chain management (SCM) and quantitative techniques is an emerging research ...
Aufsatz
A novel approach to construct self-assembled 3D MEMS arrays
(2022-08-20)
The paper presents the design and technological fabrication process of Yin or Yang-shaped, micron-sized electromechanical system (MEMS) elements displaying asymmetric hollow cylinders with two different curvatures of the cylinder shell. By adapting the process steps, two neighboring shutter MEMS elements can either be attached to each other to create asymmetric hollow cylinders or remain disconnected to form curled cylindrical or ellipsoidal tubes or tube fractions. A novel 3D self-organization process has been ...
Aufsatz
A combined FD-HB approximation method for steady-state vibrations in large dynamical systems with localised nonlinearities
(2022-09-21)
The approximation of steady-state vibrations within non-linear dynamical systems is well-established in academics and is becoming increasingly important in industry. However, the complexity and the number of degrees of freedom of application-oriented industrial models demand efficient approximation methods for steady-state solutions. One possible approach to that problem are hybrid approximation schemes, which combine advantages of standard methods from the literature. The common ground of these methods is their ...
Aufsatz
30 Years with Vladimir Gerdt
(2022-11-12)
My first meeting with Vladimir was in March 1990. I had started two months before as a Ph.D. student of Jacques Calmet in the computer science department of Karlsruhe University and Vladimir was visiting our computer algebra group for a seminar talk on his research. For him, it was one of his first travels into the west, as under Soviet rule he was not considered as sufficiently politically reliable for travels outside of the eastern block. It turned out that after his visit we were both riding on the same train to ...
Aufsatz
Development and Testing of the A1 Volumetric Air Sampler, an Automatic Pollen Trap Suitable for Long-Term Monitoring of eDNA Pollen Diversity
(2022-08-29)
Airborne pollen surveys provide information on various aspects of biodiversity and human health monitoring. Such surveys are typically conducted using the Burkard Multi-Vial Cyclone Sampler, but have to be technically optimized for eDNA barcoding. We here developed and tested a new airborne pollen trap, especially suitable for autonomous eDNA-metabarcoding analyses, called the A1 volumetric air sampler. The trap can sample pollen in 24 different tubes with flexible intervals, allowing it to operate independently in ...
Aufsatz
The Structure of the Toronto Alexithymia Scale (TAS-20): A Meta-Analytic Confirmatory Factor Analysis
(2022-07-26)
Alexithymia is defined as the inability of persons to describe their emotional states, to identify the feelings of others, and a utilitarian type of thinking. The most popular instrument to assess alexithymia is the Toronto Alexithymia Scale (TAS-20). Despite its widespread use, an ongoing controversy pertains to its internal structure. The TAS-20 was originally constructed to capture three different factors, but several studies suggested different factor solutions, including bifactor models and models with a method ...