Results 51 to 60 of about 33,292 (245)

Charge State Influence on Stability and Isomerism in Dehydrogenated PAHs: Insights from Anthracene, Acridine, and Phenazine

open access: yesChemPhysChem, Volume 26, Issue 6, March 15, 2025.
The ionization of anthracene, acridine, and phenazine has been explored, along with the removal of one and two hydrogen atoms, to provide valuable information for astrochemists and to understand the behavior of the resulting structures and their electronic reorganization. Abstract In this study, we systematically explored the stability and isomerism of
Khaldia Zghida   +3 more
wiley   +1 more source

Determination of Monoethylene Glycol in Gas Condensate Samples by Microchip Micellar Electrokinetic Chromatography Integrated With Capacitively Coupled Contactless Conductivity Detection

open access: yesELECTROPHORESIS, EarlyView.
ABSTRACT This study describes the use of microchip micellar electrokinetic chromatography (MEKC) integrated with capacitively coupled contactless conductivity detection (C4D) for the determination of monoethylene glycol (MEG) in gas condensate samples.
Maurício M. L. Pereira   +6 more
wiley   +1 more source

Mediamanual und Media Literacy Award – Was kommt danach?

open access: yesMedienimpulse
Der Essay von Petra Missomelius thematisiert das für Viele überraschende Ende der Initiative Mediamanual und die lange und erfolgreich mit Schulen durchgeführte Preisverleihung Media Literacy Award, welche schulische Medienproduktionen als Best Practice
Petra Missomelius
doaj   +1 more source

Interpretation of in vitro concentration‐response data for risk assessment and regulatory decision‐making: Report from the 2022 IWGT quantitative analysis expert working group meeting

open access: yesEnvironmental and Molecular Mutagenesis, EarlyView.
Abstract Quantitative risk assessments of chemicals are routinely performed using in vivo data from rodents; however, there is growing recognition that non‐animal approaches can be human‐relevant alternatives. There is an urgent need to build confidence in non‐animal alternatives given the international support to reduce the use of animals in toxicity ...
Marc A. Beal   +14 more
wiley   +1 more source

Study on the Process Mineralogy for the Flotation Tailings of a Gold Mine in Shandong Province

open access: yesKuangchan zonghe liyong
This is anarticle in the field of process mineralogy. The grade of gold and sulfur in a gold mine from Shandong Province was 2.0 g/t and 1.56% respectively, which was a typical gold bearing ore with low sulfur.
Kai WU   +5 more
doaj   +1 more source

[mla] 2022 – Preisverleihung und Fachtagung

open access: yesMedienimpulse, 2022
Das Medienfestival mla:connect 2022 ist bereits in Planung. Die Preisverleihung vindet vom 19. bis 21. Oktober 2022 statt. Die Fachtagung wird am 20. Oktober 2022 online stattfinden.
Katharina Kaiser-Müller
doaj  

Severity of effect considerations regarding the use of mutation as a toxicological endpoint for risk assessment: A report from the 8th International Workshop on Genotoxicity Testing (IWGT)

open access: yesEnvironmental and Molecular Mutagenesis, EarlyView.
Abstract Exposure levels without appreciable human health risk may be determined by dividing a point of departure on a dose–response curve (e.g., benchmark dose) by a composite adjustment factor (AF). An “effect severity” AF (ESAF) is employed in some regulatory contexts.
Barbara L. Parsons   +17 more
wiley   +1 more source

The M31-WC6 star MLA 1159 and its ionized nebula BA1-642 [PDF]

open access: bronze, 1999
G. Tovmassian   +4 more
openalex   +1 more source

Evaluation of the standard battery of in vitro genotoxicity tests to predict in vivo genotoxicity through mathematical modeling: A report from the 8th International Workshop on Genotoxicity Testing

open access: yesEnvironmental and Molecular Mutagenesis, EarlyView.
Abstract In human health risk assessment of chemicals and pharmaceuticals, identification of genotoxicity hazard usually starts with a standard battery of in vitro genotoxicity tests, which is needed to cover all genotoxicity endpoints. The individual tests included in the battery are not designed to pick up all endpoints.
Mirjam Luijten   +15 more
wiley   +1 more source

Home - About - Disclaimer - Privacy