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1. Antimicrobial activity of Dibenzalacetone (C17H14O)

Author

null Raymond Compton Jagessar and null Coco Dawn Barthod

Abstract

Dibenzalacetone was synthesized via the base catalysed condensation reaction between acetone and benzaldehyde. This study was done to evaluate the antimicrobial activity of the synthesized compound dibenzalacetone (C17H14O) against four human pathogenic microorganisms: Staphylococcus aureus, Klebsiella pneumoniae, Escherichia coli, Pseudomonas aeruginiosa and the fungus Candida albicans. The highest area of zone of inhibition of 68.23 mm2 was induced against Candida albicans and the lowest AZOI of 37.55 mm2 was induced against E.coli. Staphylococcus aureus was totally resistant to the drug, in that zero zone of inhibition was induced against dibenzalacetone. The order of antimicrobial potency followed the sequence: Candida albicans > Klebsiella pneumoniae > Pseudomonas aeruginosa > Staphylococcus aureus. However, its antimicrobial potency was lowered than that of standard synthetic drug, Ampicillin and Ketoconazole.

Published
2023
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2. STEM 3.0 for Chinese Students with Sea Perch Underwater Robots: An Experimental Summer Camp for Hands-on Thinkers in Shanghai

Author

Ang Li, Yi Yu, Gurvan Jodin, Dixia Fan, Huimei Xie, Chong Sun, Subi Lijia Gu, null CoCo, Jieqiong Xu, Shanghai Jiao Tong University [Shanghai], École normale supérieure - Rennes (ENS Rennes), Systèmes d'Energie pour les Transports et l'Environnement (SATIE SETE), Composants et Systèmes pour l'Energie Electrique (CSEE), Systèmes et Applications des Technologies de l'Information et de l'Energie (SATIE), École normale supérieure - Rennes (ENS Rennes)-Conservatoire National des Arts et Métiers [CNAM] (CNAM)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Ecole Normale Supérieure Paris-Saclay (ENS Paris Saclay)-Université Gustave Eiffel-CY Cergy Paris Université (CY)-École normale supérieure - Rennes (ENS Rennes)-Conservatoire National des Arts et Métiers [CNAM] (CNAM)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Ecole Normale Supérieure Paris-Saclay (ENS Paris Saclay)-Université Gustave Eiffel-CY Cergy Paris Université (CY)-Systèmes et Applications des Technologies de l'Information et de l'Energie (SATIE), École normale supérieure - Rennes (ENS Rennes)-Conservatoire National des Arts et Métiers [CNAM] (CNAM)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Ecole Normale Supérieure Paris-Saclay (ENS Paris Saclay)-Université Gustave Eiffel-CY Cergy Paris Université (CY)-École normale supérieure - Rennes (ENS Rennes)-Conservatoire National des Arts et Métiers [CNAM] (CNAM)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Ecole Normale Supérieure Paris-Saclay (ENS Paris Saclay)-Université Gustave Eiffel-CY Cergy Paris Université (CY), Department of Mechanical Engineering [Massachusetts Institute of Technology] (MIT-MECHE), Massachusetts Institute of Technology (MIT), Tianjin Polytechnic University, and Auteur indépendant

Subjects
China, Underwater Robot, 4. Education, Teaching method, Student engagement, Experimental science, STEM, 01 natural sciences, [PHYS.PHYS.PHYS-ED-PH]Physics [physics]/Physics [physics]/Physics Education [physics.ed-ph], [SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph], [SPI.AUTO]Engineering Sciences [physics]/Automatic, 0103 physical sciences, Mathematics education, Summer camp, Learning methods, Underwater robot, Sociology, Hands-on Education, 010306 general physics, 010303 astronomy & astrophysics
Abstract

International audience; In the last 5 years, we see a drastically increasing demand and interest in the STEM education from every aspect of Chinese public and private educational sectors. However due to the short-time development and hence a lack of experience, Chinese STEM education faces two major challenges: the lack of the student engagement and the lack of the teaching guidelines. Therefore, we propose a new idea of "STEM 3.0" teaching methods and its corresponding classroom framework. Using an underwater robot called "Sea Perch", we then tested and implemented the concept two experimental science summer camps of more than 120 students at Shanghai in the summer of 2019. The camp is successful manifestation of the "STEM 3.0" teaching and learning method, featuring encouragingly positive student feedbacks.

Published
2020
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