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Anti-UV the Hippo Way: Chemical Education
No full textThe hippopotamus secretes a liquid from its skin that may act both as a sunscreen and an antibiotic
Machine Learning Models for Melting Point Prediction of Ionic Liquids: CatBoost Approach: FH-HES Universities of Applied Sciences
No full textUsing ionic liquids as phase changing materials is of particular interest in the context of heat storage. As a consequence, predicting accurately the melting point of ionic liquids is of capital importance as it is one of the most important thermophysical properties in this context. In this work we consider a data set composed of 2249 different ionic liquids, with a majority of imidazole or ammonium cation-based molecules. We present a free and easy-to-use melting point predictive algorithm built on the CatBoost algorithm, making strong use of molecular descriptors. Based on LASSO, we select the most relevant descriptors for the task at hand and compare the model with previous ones
Anna K. H. Hirsch: Drug Design and Optimisation to Disarm Dangerous Germs
Get PDFAnna K. H. Hirsch, Professor and Head of the Department of Drug Design and Optimisation at the Helmholtz Institute for Pharmaceutical Research in Saarbrücken (HIPS), Germany, is dedicated to fighting infectious diseases by focussing on enzymes that are central to the metabolism of parasites. Her research has led to a valuable collaboration with the Swiss Tropical and Public Health Institute (Swiss TPH)
Chemistry: A Bunch of Symbols?
Get PDFTeaching and learning chemical formulas and structures is challenging. In many cases students understand chemical formulas only at a superficial level and poorly comprehend and retain the underlying chemical processes. Teaching methods still follow historically evolved principles, which are briefly summarized in this article. Difficulties and misconceptions that students encounter are presented and discussed. Didactic principles are proposed to help overcome the main challenge of connecting learned concepts and models to chemical formulas. The macOS and iPadOS application MoleculeSketch for drawing chemical structures is presented
Two Decades of Online Teaching: Trends, Challenges, and Future Directions
Get PDFOver the past two decades, significant advancements in educational technology have revolutionized the field of chemical education. This publication presents our contributions using web-based tools that have been developed over this period, enabling chemistry students to engage with exercises that closely mirror real-world scenarios encountered in their future careers. These freely available online resources have facilitated the seamless integration of theoretical knowledge and practical applications, fostering critical thinking and problem-solving skills
Operando Surface Hydrogen Analysis by Plasmon Spectroscopy: Highlights of Analytical Sciences in Switzerland
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Flow Chemistry Highlights: Selected Topic: An interview with David Linder from Roche, Basel
No full textOn the Importance of Chemical Education
Get PDFChemical education, together with other scientific and non-scientific fields, plays a role in the construction of a rational mind, and it is therefore of the highest importance to include it as early as possible in the school curricula. In this short article, the author, not being an expert in educational sciences, expresses his personal opinion based on almost 30 years of teaching chemistry at various levels