Jonas Fischer

Dataset on mixture toxicity effects of widespread organic pollutants to soil invertebrates and soil respiration at effective and environmental concentrations

Jonas Fischer, Sara Sophie Coordes, Lars Hinrich Janßen, Gregor Langemeier et autres

The data summarize the results of standardized 28- day reproduction tests with the soil invertebrates Enchytraeus crypticus (OECD 220) and Folsomia candida (OECD 232), as well as with the soil microbial community on the endpoints soil respiration (OECD 217) and nitrification (OECD …

de (code pays fourni par la source)

Dataset on mixture toxicity effects of widespread organic pollutants to soil invertebrates and soil respiration at effective and environmental concentrations

Jonas Fischer, Sara Sophie Coordes, Lars Hinrich Janßen, Gregor Langemeier et autres

The data summarize the results of standardized 28- day reproduction tests with the soil invertebrates Enchytraeus crypticus (OECD 220) and Folsomia candida (OECD 232), as well as with the soil microbial community on the endpoints soil respiration (OECD 217) and nitrification (OECD …

de (code pays fourni par la source)

Oxidative stress induction of mixtures of commercial pesticide formulations with a copper hydroxide nanopesticide in Daphnia magna is mediated by copper speciation

Jonas Nelles, Paula Fortes, Alica Rother, Jonas Fischer et autres

• Pesticides may affect glutathione S-transferase (GST) or catalase (CAT) activity • Single pesticides and mixtures changed GST and CAT at sublethal concentrations • Trend of GST and CAT induction in high concentrations of prochloraz + Cu(OH) 2 NP • CAT reduction …

de (code pays fourni par la source)

Soil organic matter and clay content drive uptake and mixture toxicity of widespread organic pollutants in soil invertebrates

Jonas Fischer, Sara Coordes, Lars Hinrich Janßen, Gregor Langemeier et autres

Ubiquitous or non-toxic pollutants affect synergistic mixture interactions in a realistic agricultural field scenario

Jonas Fischer, Carlotta Marx, Juliane Filser

Daphnia magna reveals contrasting effects of copper hydroxide nanopesticides and copper chloride in mixtures with commercial pesticide formulations

Jonas Nelles, Paula Amy Marina Fahl, Sven-Timo Gladow, Jonas Fischer et autres

The use of nanopesticides is expected to increase in the future. Accordingly, the likelihood of agrochemicals occurring in mixture with nanopesticides will increase. Pesticides are typically applied in a variety of mixture formulations, potentially contaminating surface water bodies. Possible interactions in mixtures …

de (code pays fourni par la source)

A hidden artefact: how surfactants can distort the results of springtail reproduction tests

Jonas Fischer, Borbála Szabó, Leonid Manikhin, Juliane Filser

Soils are exposed to multiple substance groups, including surfactants, which directly enter soils when they are used as additives in firefighting liquids or pesticide mixtures due to their surface tension-lowering properties. The impact of chemicals on soil health is often tested with …

de (code pays fourni par la source)

Oxidative stress induction of mixtures of commercial pesticide formulations with a copper hydroxide nanopesticide in Daphnia magna is mediated by copper speciation

Jonas Nelles, Alica Rother, Jonas Fischer, Juliane Filser

Sailing in high-dimensional spaces: Low-dimensional embeddings through angle preservation

Jonas Fischer, Rong Ma

Low-dimensional embeddings (LDEs) of high-dimensional data are ubiquitous in science and engineering. They allow us to quickly understand the main properties of the data, identify outliers and processing errors, and inform the next steps of data analysis. As such, LDEs have to …

Biotic and Abiotic Interactions in Freshwater Mesocosms Determine Fate and Toxicity of CuO Nanoparticles

Tonya Gräf, Viviane Koch, Jan Köser, Jonas Fischer et autres

Transformation, dissolution, and sorption of copper oxide nanoparticles (CuO-NP) play an important role in freshwater ecosystems. We present the first mesocosm experiment on the fate of CuO-NP and the dynamics of the zooplankton community over a period of 12 months. Increasingly low …

de (code pays fourni par la source)

Contrôle d'un système quantique ouvert : Exemples et méthodes pour la dynamique non-markovienne

Jonas Fischer

Habituellement, les systèmes quantiques ouverts sont considérés comme étant sous l'influence du bruit et donc défectueux. D'autre part, un système contrôlé est considéré comme quelque chose de stable et de prévisible. On néglige souvent le fait que ces deux aspects sont très …

fr (code pays fourni par la source)

Clay Types Modulate the Toxicity of Low Concentrated Copper Oxide Nanoparticles Toward Springtails in Artificial Test Soils

Jonas Fischer, Ghanem D. A. Talal, Laura S. Schnee, Patricks Voua Otomo et autres

Abstract Copper oxide nanoparticles (CuO-NPs) can be applied as an efficient alternative to conventional Cu in agriculture. Negative effects of CuO-NPs on soil organisms were found, but only in clay-rich loamy soils. It is hypothesized that clay–NP interactions are the origin of …

de, Afrique du Sud (code pays fourni par la source)