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Predicting Forage Quality of Grasslands Using UAV-Borne Imaging Spectroscopy
(2020-01-01)
The timely knowledge of forage quality of grasslands is vital for matching the demands in animal feeding. Remote sensing (RS) is a promising tool for estimating field-scale forage quality compared with traditional methods, which usually do not provide equally detailed information. However, the applicability of RS prediction models depends on the variability of the underlying calibration data, which can be brought about by the inclusion of a multitude of grassland types and management practices in the model development. ...
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Bewusstes und unbewusstes Denken von Experten und Novizen: Eine empirische Studie zur Qualität von Personalauswahlentscheidungen und Implikationen für die Beratung
(2020-09-29)
Die „Theorie des unbewussten Denkens“ (UTT) postuliert, dass Menschen in komplexen Situationen bessere Entscheidungen treffen, wenn sie unbewusst-intuitiv und nicht bewusst nachdenken. Inwieweit sich diese, fast ausschließlich im Bereich der Konsumgüterentscheidungen geprüfte Annahme, auch auf die Entscheidungsarbeit von Recruitern, Beratern oder Coaches übertragen lässt und welche Rolle hierbei ihrer Expertise zukommt, ist bisher weitgehend ungeklärt. In diesem Beitrag werden die UTT sowie die Relevanz der Expertise ...
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Verwaltungsdokumente als Vehikel in der biografischen Auseinandersetzung mit der Heimerziehung der 1950er und 1960er Jahre
(2020-01-20)
In dem Beitrag wird die Bedeutung von Fürsorgeakten der 1950er und 1960er Jahre für Zeitzeug_innen der damaligen Heimerziehung herausgearbeitet. Dafür werden biografisch-narrative Interviews mit einer hermeneutischen Perspektive analysiert. Die Bedeutung der Dokumente im Rahmen biografischer Aufarbeitung von vergangenen Geschehnissen steht dabei im Zentrum. Der Beitrag zeigt, dass die Wirkmacht der Schriftstücke für die befragten Zeitzeug_innen von der Vergangenheit bis in die Gegenwart reicht. Akteur_innen der ...
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Photoinduced supramolecular chirality and spontaneous surface patterning in high-performance azo materials
(2019-06-18)
In this work, two photo-structuring processes, photo induced spontaneous surface structuring (PSSP) and photo induced supramolecular chirality (PSC) are applied to high-performance azo polymers. We demonstrate higher induced optical rotation than described previously in other reports and show that self-organized surface morphologies are not detrimental for the formation of PSC.
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Socio-economic characterisation of date palm (Phoenix dactylifera L.) growers and date value chains in Pakistan
(Biomed Central, 2016-08-02)
Increasing food production to feed its rapidly growing population is a major policy goal of Pakistan. The production of traditional staples such as rice (Oryza sativa L.) and bread wheat (Triticum aestivum L.) has been intensified in many regions, but not in remote, drought-ridden areas. In these arid, marginal environments dates and their by-products are an option to complement staples given their high nutritive value and storability. To fill knowledge gaps about the role of date palm in the household (HH) income ...
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Status for the good guys: An experiment on charitable giving
(2021-10-06)
We study the social status motive in an experiment at an art-house cinema in Germany where movie-goers can make monetary contributions to help the cinema become climate neutral. Our key result is that offering high contributors a “social status gift” that displays their good deed increases both the likelihood of a high contribution and mean contributions. It performs significantly better than previously studied mechanisms, such as the removal of anonymity, the provision of a reference point, or a neutral thank-you ...
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A Field Experiment on Reducing Drinking Straw Consumption by Default
(2020-09-16)
Against the background of the pollution of the environment through plastic waste, we conducted a field experiment (N = 195) to test the effectiveness of a default nudge intervention that aimed at reducing the consumption of plastic drinking straws. We assumed that separating straws from cups by default leads to an overall decrease in straw consumption. We hypothesized that individuals would consume straws less frequently when they had to pick straws actively out of a separate straw box for their drink compared to ...
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Numerical Investigation of Ultrashort Laser-Ablative Synthesis of Metal Nanoparticles in Liquids Using the Atomistic-Continuum Model
(2019-12-24)
We present a framework based on the atomistic continuum model, combining the Molecular Dynamics (MD) and Two Temperature Model (TTM) approaches, to characterize the growth of metal nanoparticles (NPs) under ultrashort laser ablation from a solid target in water ambient. The model is capable of addressing the kinetics of fast non-equilibrium laser-induced phase transition processes at atomic resolution, while in continuum it accounts for the effect of free carriers, playing a determinant role during short laser pulse ...
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Evaluation of hydraulic efficiency of lined irrigation channels - A case study from Punjab, Pakistan
(2023-04-04)
Indus Basin Irrigation System (IBIS) in Pakistan is the backbone of agriculture in the country. The IBIS provides irrigation support to agricultural lands across the country; however, hydraulic efficiency of the water conveyance system is impacted due to seepage losses. The lining of irrigation channels is considered a potential solution for improving hydraulic efficiency. Therefore, this study explores the impact of canal lining on the hydraulic efficiency of the canals in the Punjab province of Pakistan. Overall, ...
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Dynamic Tensile Deformation of High Strength Aluminum Alloys Processed Following Novel Thermomechanical Treatment Strategies
(2020-05-14)
Herein, the effects of a very recently introduced novel thermomechanical process route on the microstructural evolution and dynamic tensile deformation behavior of two different precipitation hardenable aluminum alloys, i.e., AA6082 and AA7075, are studied. The investigated materials are hot formed and quenched in differently tempered tools to reveal the influence of cooling rate. Microstructure analysis is conducted to study the influences of different cooling strategies on the microstructure evolution and prevailing ...