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Showing 1 to 15 of 2,560 results Save | Export
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Simeen Sattar – Journal of Chemical Education, 2024
Lakes are artists' pigments made from colorants bound to an inert substrate, usually hydrated aluminum oxide. Before the late 19th century, lakes were made from natural pigments extracted from plants and insects, extracted either directly from the dyestuff or indirectly from waste materials generated in the manufacture of dyed textiles. The first…
Descriptors: Color, Science Experiments, Laboratory Experiments, Science Education
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Bolduc, Kathryn C.; McCollough, Shannon L.; Stoeckman, Angela K. – Biochemistry and Molecular Biology Education, 2023
Undergraduate laboratory courses are vital for both enhancing student learning and preparing students for their future careers. Despite their importance, laboratory courses are often met with a lack of enthusiasm from students. For pre-health students specifically, laboratory courses are commonly seen as part of a check-list that needs to be…
Descriptors: Biochemistry, Science Laboratories, Laboratory Training, Majors (Students)
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Anna Laguta – Journal of Chemical Education, 2025
Colloidal stability is one of the most important criteria in the application strategy of colloidal nanoparticles in the continuous phase. The branches include ecology, involving coagulation as a purification method; medicine as nanocarriers; biology as blood coagulation, etc. A chemist versed in these concepts is a high-performing chemist in…
Descriptors: Science Experiments, Laboratory Experiments, Chemistry, Light
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Zhongcheng Lei; Hong Zhou; Wenshan Hu; Guo-Ping Liu – IEEE Transactions on Learning Technologies, 2024
Online laboratories have been widely used in education, research, and industrial applications. For online laboratories, various architectures have been constructed to provide good user experience and powerful capabilities for online experimentation, in which the controller is a crucial part to connect the server with a controlled test rig.…
Descriptors: Online Courses, Laboratories, Distance Education, Computers
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Sofia F. Palme; Andrew H. Johnson; Graeme R. A. Wyllie – Journal of Chemical Education, 2024
A major challenge when designing new experiments for the general chemistry laboratory is introducing students to the necessary techniques while keeping the experiment engaging and accessible. This work presents a new multiweek activity designed to introduce students to advanced instrumentation in the form of high-performance liquid chromatography…
Descriptors: Chemistry, Science Education, Color, Food
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Chengxuan Guo; Nicole Wendel; Ally Lee; Shonda Monette; Brian Morrison; Dominic Frisbie; Earlene Erbe; Rene´e S. Cole; Max Lei Geng – Journal of Chemical Education, 2024
The pharmaceutical and medicine manufacturing industry has become the largest industrial sector for the employment of chemists, indicating a need for experiments with a pharmaceutical sciences context in the undergraduate chemistry curriculum. In the pharmaceutical industry, testing drug dissolution is a key analytical task for solid oral dosage…
Descriptors: Undergraduate Students, Chemistry, Science Instruction, Laboratory Experiments
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Qi Sun; Qing Guo; Xiuhui Zuo; Sai Wang – Journal of Chemical Education, 2024
This laboratory experiment offers a research-style experience designed for senior undergraduate students in a multidisciplinary laboratory setting. The experiment focuses on the synthesis, characterization, and application of a cation-exchange membrane made of COF-SO[subscript 3]Na/PAN for ion separation. By participating in this practical…
Descriptors: Undergraduate Study, Science Instruction, Chemistry, Theory Practice Relationship
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Wesley C. Sanders; Ron Valcarce; Peter Iles; Glen Johnson; Spencer Ashworth; Aaron Barnett; Hardin Beaudry; Hayden Duffin; Hunter Fourt; Ezekial Curran; Nolan Chandler Turner; Kasielynn Bussard; Mariana Euan; Nickeles Hunter – Journal of Chemical Education, 2023
This manuscript describes a laboratory exercise that allows students to use conductive atomic force microscopy (CAFM) for the analysis of electrodeposited, metallic structures. In addition to nanoscale electrical characterization with CAFM, this laboratory exercise also provides students with an opportunity to explore nanofabrication by…
Descriptors: Science Instruction, Science Laboratories, Measurement, Laboratory Equipment
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María Evangelina Carezzano; María de las Mercedes Oliva; Emiliano Foresto; Pablo Bogino; Walter Giordano – Journal of Biological Education, 2024
Plant extracts and their components have been reported to have antimicrobial properties against phytopathogens. Although such properties could be harnessed for the development of new pathogen control strategies, there are no standardised methods for their assessment in different extracts. The laboratory exercise presented here involves the use of…
Descriptors: Laboratory Experiments, Science Education, Microbiology, Plants (Botany)
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Mariela Analía Torres; Alejandra Leonor Valdez; Carolina de Lourdes Olea; María Fernanda Figueroa; Carlos Gabriel Nieto-Peñalver – Biochemistry and Molecular Biology Education, 2024
After a time away from the classrooms and laboratories due to the global pandemic, the return to teaching activities during the semester represented a challenge to both teachers and students. Our particular situation in a Microbial Physiology course was the necessity of imparting in shorter time, laboratory practices that usually take longer. This…
Descriptors: Science Instruction, Science Laboratories, Physiology, Microbiology
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Elsa H.K. Spencer; Joanna R. Vondrasek – Inquiry: The Journal of the Virginia Community Colleges, 2024
Federal second chance Pell grants were recently made widely available to incarcerated students in the United States to fund undergraduate education. Piedmont Virginia Community College was a pilot site for this expansion and began full scale implementation of transfer-oriented associate degrees at three correctional centers in its service area.…
Descriptors: Community Colleges, Institutionalized Persons, Correctional Education, Biology
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Pramod Kumar; Biplab Maji – Journal of Chemical Education, 2024
Discussion-based outcomes of organic chemistry laboratory experiments form a powerful tool to create a learning environment, facilitate teamwork, and build scientific skills and analytical ability for undergraduate science students. A Knoevenagel-type condensation reaction was selected to demonstrate these results by taking phenylacetonitrile and…
Descriptors: Organic Chemistry, Science Laboratories, Science Experiments, Laboratory Experiments
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Antonio Rosales Marti´nez; Ignacio Rodri´guez-Garci´a; Josefa L. Lo´pez-Marti´nez – Journal of Chemical Education, 2022
Green chemistry is finding its place as one of the most essential study topics in the curriculum of future chemists and chemical engineers. Experiments that meet green chemistry principles contribute to make the laboratory a safer working place, generate less waste, and allow students to increase their knowledge in new environmentally friendly…
Descriptors: Chemistry, Laboratory Experiments, Laboratory Procedures, Teaching Methods
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Samuel Fura; Samuel Abidemi Oluwole; Queen Assala Hakim; Hikari Sanchez; Daniela Toledo; Aline Andrea Quintana; Christian Agatemor – Journal of Chemical Education, 2023
Chemists have always designed and deployed cross-disciplinary approaches that interface chemistry with other disciplines to proffer solutions to many human problems. We designed a laboratory experiment that implements chemistry concepts in a biological model to prime undergraduate students to appreciate interdisciplinarity as an approach to…
Descriptors: Undergraduate Students, College Science, Science Experiments, Laboratory Experiments
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Maksim Dolmat; Veronika Kozlovskaya; Eugenia Kharlampieva – Journal of Chemical Education, 2023
The essential component of expanding an undergraduate curriculum is the inclusion of lab experiments in nanoscience and nanomaterials, which significantly impact health and the environment through their use in food, cosmetics, agriculture, and medicine. We designed a laboratory experiment based on the atomic force microscopy (AFM) analysis of the…
Descriptors: Science Instruction, College Science, Undergraduate Students, Science Laboratories
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