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Now showing items 161-170 of 237
Aufsatz
SDG Performance in Local Organic Food Systems and the Role of Sustainable Public Procurement
(2022-09-14)
Alternative food systems have occupied a steady niche in the food systems transformation discourse as one of the transformative pathways capable of addressing many of the United Nations Sustainable Development Goals (SDGs). Being one of the alternative approaches, organic food systems are often in the spotlight of transformation discussion. While their outcomes and, to a lesser extent, potential to address the SDGs have been documented, the attempts to provide empirical evidence for the latter contribution are largely ...
Aufsatz
Evidence for Electron Transfer from the Bidirectional Hydrogenase to the Photosynthetic Complex I (NDH-1) in the Cyanobacterium Synechocystis sp. PCC 6803
(2022-08-10)
The cyanobacterial bidirectional [NiFe]-hydrogenase is a pentameric enzyme. Apart from the small and large hydrogenase subunits (HoxYH) it contains a diaphorase module (HoxEFU) that interacts with NAD(P)+ and ferredoxin.
HoxEFU shows strong similarity to the outermost subunits (NuoEFG) of canonical respiratory complexes I. Photosynthetic complex I (NDH-1) lacks these three subunits. This led to the idea that HoxEFU might interact with NDH-1 instead. HoxEFUYH utilizes excited electrons from PSI for photohydrogen ...
Aufsatz
Management Effects on the Performance of Double Cropping Systems - Results from a Multi-Site Experiment
(2022-09-04)
Traditional (silage) maize production often has negative side-effects related to unprotected soil surface. There are several possibilities to enhance system sustainability through reducing soil disturbance. However, implementation may be hindered due to reduced nitrogen availability and increased weed infestation, especially in organic agriculture. A field experiment to evaluate yield potential of 18 silage maize cropping systems under organic management was conducted at three distinct locations. Examined parameters ...
Aufsatz
Multichannel single center method
(2022-08-10)
A multichannel single center (MCSC) method for the theoretical description of the electron continuum spectrum in molecules is reported. The method includes coupling between different continuum channels via electron correlations and describes, thereby, photoelectron continuum in the Tamm–Dancoff (configuration interaction singles) approximation. Basic equations of the non-iterative one-channel single center (SC) method and their extension to the MCSC method are presented, and an efficient scheme for their numerical ...
Aufsatz
Living locked down – An autoethnographic approach to strategies of adaption to confined living in north Hesse, Germany
(2022-09-07)
Based on autoethnographic observations and phenomenological descriptions of everyday life, this article develops a theory about the connection between challenging housing experiences and the lockdown situation during the COVID-19 pandemic in Germany. A special focus is placed on living in community, i.e. living permanently together with other people. The reorganisation of spatial routines and the bundling of these in the flat led to the development of new methods of everyday life in terms of work, leisure and social ...
Aufsatz
Scanning the solutions for the sustainable supply of forest ecosystem services in Europe
(2022-03-22)
Forests are key components of European multifunctional landscapes and supply numerous forest ecosystem services (FES) fundamental to human well-being. The sustainable provision of FES has the potential to provide responses to major societal challenges, such as climate change, biodiversity loss, or rural development. To identify suitable strategies for the future sustenance of FES, we performed a solution scanning exercise with a group of transdisciplinary forest and FES experts from different European regions. We ...
Aufsatz
An 8-bit precision cipher for fast image encryption
(2022-04-21)
Implementing chaos based ciphers usually involves 32-bit floating-point arithmetics that is hardware resources costly. The limitation of the computational precision is hardware imposed and transforms chaotic orbits into limit cycles with short periods, hence alters their randomness. In cryptographic applications, short period dynamics and weak randomness result in security issues. In order to address this concern, we propose an 8-bit precision cipher that can be implemented with low-end microprocessors running 8-bit ...
Aufsatz
Digitale frühe Bildung in der fachschulischen Qualifizierung
(2022-04-06)
Der Beitrag nimmt die fachschulische Ausbildung von Erziehern und Erzieherinnen zum Gegenstand, um Rahmendokumente wie Curricula und Schulbücher mit Blick auf die Thematik der digitalen frühen Bildung hin zu untersuchen. Es zeigt sich, dass die Darstellungen am Begriff der Medienkompetenz und des Bildungsbereiches Medien orientiert sind, wohingegen Digitalisierung und Mediatisierung kaum bzw. unterkomplex und zuweilen simplifizierend referiert werden.
Aufsatz
Romance and the ozone layer: panel evidence on green behavior in couples
(2022-02-03)
The exploration of the drivers of interpersonal alignment processes in romantic partners is particularly relevant to policies that promote green behavior because social anchoring in families and relationships can undermine effective behavioral change. The present paper aims to investigate the role important life events, such as childbirth, marriage, and the acquisition of real estate, in explaining the alignment of pro-environmental behavior within couples over time. The adoption of a life-course perspective is a ...
Aufsatz
Bedeutung der Kompatibilität für eine sichere und belastungsfreie Arbeitsgestaltung - Aktuelle Relevanz des Konstruktes am Beispiel moderner Arbeitsgestaltung
(2022-01-24)
Kompatibilität ist eines der zentralen Konzepte der Arbeitsgestaltung seit den frühen Anfängen arbeitswissenschaftlicher Forschung. Auch wenn, oder gerade weil, das Konstrukt der Kompatibilität etabliert ist, tritt die Bedeutung der Kompatibilität für aktuelle Fragestellungen der Arbeitsgestaltung jedoch oft in den Hintergrund, weil es ein altes und damit vermeintlich antiquiertes Konstrukt ist. Gerade der Umstand, dass Kompatibilität ganz wesentlich physiologisch, also durch unsere Hirnanatomie bedingt ist, zeigt ...