Results 21 to 30 of about 1,425,518 (291)

Preparação de N-alquil derivados do 1-bromo-2,4-dinitrobenzeno e do 1-cloro-2-nitrobenzeno: Uma alternativa às aulas práticas de substituição nucleofílica aromática Preparation of N-alkyl derivatives of 1-bromo-2,4-dinitrobenzene and 1-chloro-2-nitrobenzene: An alternative to nucleophilic aromatic substitution practices

Química Nova, 2008
Preparation of the title compounds are described as an alternative nucleophilic aromatic substitution for practices in the graduate laboratory. The low toxicity and disponibility of the reagents make a suitable procedure approach to experiments regarding
Ayres Guimarães Dias, Felipe Martins Alves Pereira, Renato de Oliveira Soares   +2 more
doaj   +1 more source

Dansyl linked solid phase resins as an educational tool to teach the concepts of high throughput screening and prodrugs.

British Journal of Pharmacy, 2023
High throughput screening (HTS) and combinatorial chemistry, have been part of the process of drug design for nearly two decades. However, methods to teach their practical aspects to undergraduate students are scarce in the literature.
Jordi Morral, Ali Ibrahim, Fatima Traore, Klaus Pors   +3 more
doaj   +1 more source

Characterization and diversity of the market-gardening production systems and their interactions with urban and peri-urban environment in Southern-Benin, West Africa [PDF]

, 2013
The market-gardening production plays an important role in contribution to food availability. However this activity is limited by constraints and also generates harmful effects on health and environment. Thus to ensure the sustainability of this activity
Ahouangninou, Claude, Bio-Bangana, Sahabi, Boko, Michel, Edorh, Patrick, Fayomi, Benjamin, Houssou, Christophe, Huat, Joël, Martin, Thibaud, Medali, D., Parrot, Laurent, Vidogbéna, Faustin   +10 more
core   +1 more source

Incorporating Sustainability into Engineering and Chemical Education Using E-Learning

Education Sciences, 2018
The purpose of this study was to develop e-learning activities that could facilitate the integration of sustainability concepts and practices in engineering and chemical education.
Edmond Sanganyado, Simbarashe Nkomo
doaj   +1 more source

Digital Skills in Chemical Education [PDF]

Nature Chemistry
The role of computing in the chemical sciences is changing. Previously the domain of the theoretical or computational chemist, advanced digital skills, including data analysis and simulation, are becoming extremely relevant to all. Here, we discuss the importance of integrating computing and digital skills into an undergraduate chemistry program and ...
Andrew R. McCluskey, Miguel Rivera, Antonia S. J. S. Mey   +2 more
openaire   +3 more sources

The effects of MgO, Na2O and SO3 on industrial clinkering process: phase composition, polymorphism, microstructure and hydration, using a multidisciplinary approach [PDF]

, 2019
Preprint publicado en: Materials Characterization Volume 155, September 2019, 109809The present investigation deals with how minor elements (their oxides: MgO, Na2O and SO3) in industrial kiln feeds affect (i) chemical reactions upon clinkering, (ii ...
Alessandro, Pavese, Gomez-de-la-Torre, Maria de los Angeles, Marco, Cantaluppi, Matteo, Galimberti, Maurizio, Marchi, Nicoletta, Marinoni, Segata, Monica   +6 more
core   +1 more source

Educação Química no Projeto Escolar “Quixaba”: Alfabetização Científica com Enfoque CTSA no Ensino Fundamental a Partir de Temas Sociocientíficos

Orbital: The Electronic Journal of Chemistry, 2015
The objective of this study was to analyze the pedagogical aspects of teaching chemistry in a “Quixaba” school project developed with students of Science of last year of basic school (corresponding to the third cycle), focusing CTSA.
Luciana do N. Rodrigues, Rivana S. Batista, Sidnei Quezada Meireles Leite, Sandro J. Greco, Álvaro Cunha Neto, Valdemar Lacerda Junior   +5 more
doaj   +3 more sources

Monitoring Acid–Base Titrations on Wax Printed Paper Microzones Using a Smartphone

Micromachines, 2017
This study describes the use of a smartphone for monitoring acid–base titrations on wax printed paper microzones. An array of twelve microzones of 5 mm diameter each was wax printed on filter paper.
Sandro A. Nogueira, Lucas R. Sousa, Nathália K. L. Silva, Pedro H. F. Rodrigues, Wendell K. T. Coltro   +4 more
doaj   +1 more source

The “Lab4treat” Outreach Experience: Preparation of Sustainable Magnetic Nanomaterials for Remediation of Model Wastewater

Molecules, 2021
The Lab4treat experience has been developed to demonstrate the use of magnetic materials in environmental applications. It was projected in the frame of the European project Mat4Treat, and it was tested several times in front of different audiences ...
Maria Laura Tummino, Roberto Nisticò, Flavia Franzoso, Alessandra Bianco Prevot, Paola Calza, Enzo Laurenti, Maria Cristina Paganini, Dominique Scalarone, Giuliana Magnacca   +8 more
doaj   +1 more source

New Approach to Solve Some Problems in Undergraduate Education of Chemical Engineering Students [PDF]

, 2019
The present short paper is an attempt in the direction of understanding the learning problems of undergraduate students. Sample of chemical engineering students was selected to perform a simple exam test. The test was divided into four steps. Closed book
Khadom, A. A. (Anees)
core   +3 more sources