General chemistry

In this study, an analytical chemistry practice was established and validated via the quantification of ibuprofen in drugs using the UHPLC-PDA/MS analysis for undergraduate students. These findings demonstrate that the analytical procedure is a promising and effective method for establishing the analytical chemistry practice to meet the general education curriculum 2018 in Vietnam and serve as a valuable reference for students and teachers.

16p visergeyne 18-06-2024 4 0   Download

The target of this project is to construct a general and feasible procedure to determine the acidic equilibrium constants in aqueous solution at 25oC from the data of the potentiometric titration process in a rapid, simple and effective way. Then it will be applied to estimate the equilibrium constants of some new acids.

27p tunelove 10-06-2021 12 4   Download

Research’s aims: Research, proposed measures develop Self-learning Resources Inorganic chemistry part For Students Contribute to improving the quality of training at Southwestern Medical College.

25p thebadguys 08-06-2021 18 2   Download

Purpose of the research: Research to build process and some measures to develop STEM teaching capacity for preservice chemistry teachers to contribute to innovation of teaching method according to the orientation of the development of competence.

27p thebadguys 08-06-2021 19 4   Download

The objectives of the thesis: The objectives of this study are to investigate the main chemical compositions of Euphorbia hirta L. to search for chemical constituents in relation to biological activities, contributing to further studies to create products for application in the aquarculture industry in particular and for life in general.

31p extraenglish 24-05-2021 30 3   Download

Study objectives: Study on theoretical and application basis of Microsoft (MS) Access and Visual Basic for Application (VBA) in creating programs that have applications in general teaching and learning and teaching and learning chemistry in particular.

27p prisonbreak123 21-05-2021 35 4   Download

Purpose of the research: Fostering self-study capacity for high school students through the compilation and using self-study exercises in general chemistry module.

27p prisonbreak123 21-05-2021 26 4   Download

The objectives of this study are to investigate the main chemical compositions of Euphorbia hirta L. to search for chemical constituents in relation to biological activities, contributing to further studies to create products for application in the aquarculture industry in particular and for life in general.

31p capheviahe27 23-02-2021 26 3   Download

Recently, some of the furoquinoline alkaloids were found to have an interesting biological activity, for example, anti-cancer, antiplatelet aggregation and antifungal activities. The interesting biological activity made these compounds 1-13 attractive targets in organic chemistry. A novel generally applicable synthesis of furoquinolines is described. The condensation of 2- methoxy aniline and malonic acid in the presence of POCl3 gave 2,4-dichloro-8- methoxyquinoline. Then, treatment of this compound with sodium methoxide in methanol under reflux afforded 4,8-dimethoxyquinoline.

5p uocvong04 24-09-2015 68 5   Download

Ph.D. dissertation Science Education: Developing innovative capacity for independent college students through teaching techniques of organic chemistry research applied several measures PPDH active in organic chemistry DH to develop independent innovation capacity of students, contributing to improving the quality of practical chemistry in particular DH and enhance the effectiveness of training in engineering universities in general.

31p nganhanggddt2014 01-07-2014 92 7   Download

An arti®cial peroxidase-like hemoprotein has been obtained by associating a monoclonal antibody, 13G10, and its iron(III)±a,a,a,b-meso-tetrakis(ortho-carboxyphenyl)por-phyrin [Fe(ToCPP)] hapten. In this antibody, about two-thirds of the porphyrinmoiety is inserted in the binding site, its ortho-COOH substituents being recognized by amino-acids of the protein, and a carboxylic acid side chain of the protein acts as a general acid base catalyst in the heterolytic cleavage of the O±O bond of H2O2, but no amino-acid res-idue is actingas anaxial ligandof the iron....

11p research12 23-04-2013 35 2   Download

Masaki Okumura1,2, Masatoshi Saiki2,3, Hiroshi Yamaguchi1 and Yuji Hidaka2 1 School of Science and Technology, Kwansei Gakuin University, Hyogo, Japan 2 Graduate School of Science and Engineering, Kinki University, Osaka, Japan 3 Department of Applied Chemistry, Faculty of Engineering, Tokyo University of Science, Yamaguchi, Japan Keywords arginine; disulfide; folding; glutathione; uroguanylin Correspondence Y.

8p cosis54 05-01-2013 45 5   Download

What is the hepatitis B vaccine? The hepatitis B vaccine is the first anti-cancer vaccine because it prevents hepatitis B infections, which can lead to liver cancer later in life. The vaccine is made in a chemistry lab. No human blood is used in the vaccine, so you cannot get hepatitis B from the vaccine. There are two brands of vaccine in the United States: Recombivax HB (Merck) and Engerix B (GlaxoSmithKline). Although both vaccines will provide equal protection against hepatitis B, doctors may order one brand or another. How is the vaccine given? In general, the hepatitis B...

3p duagangdamsua 24-05-2011 56 2   Download

chemistry, First Edition, by Julia Burdge has been created to bridge the gap in the McGraw-Hill general chemistry offerings. This textbook offers a clear writing style written with the students in mind. Julia uses her background of teaching hundreds of general chemistry students per year and creates content to offer more detailed explanation on areas where she knows they have problems. Sitting down with the art house, Julia Burdge worked with the artist to create the style and major art pieces in her text.

40p losedtales 11-01-2011 139 29   Download

General Chemistry Chương 8 Cân bằng hóa học HUI© 2006 General Chemistry: Slide 1 of 48 .Cân bằng hoá học 8.1. Phản ứng thuận nghịch & Trạng thái cân bằng hoá học 8.2.Hằng số cân bằng & Mức độ diễn ra

24p kenji_1992 24-12-2010 327 119   Download

C effects are generally stronger than I effects. C effects can be effective over much longer distances than I effects – provided that conjugation is present. I effects are determined by distance, C effects are determined by relative positions.

40p 3dagkhoa 28-10-2010 132 32   Download

The modern drug discovery process, in general, involves the identification of a biochemical target (usually protein target), screening of synthetic compounds or compound libraries from combinatorial chemistry/natural sources for a lead compound, and optimization of the lead compound (activity, selectivity, pharmacokinetics, etc.) for recommending a potential clinical candidate.

63p bigbaby87 03-09-2010 111 15   Download

Solubility of the catalysts in water is determined by their overall hydrophilic nature which may arise either as a consequence of the charge of the complex ion as a whole, or may be due to the good solubility of the ligands. Although transition metal complexes with small ionic ligands, such as halides, pseudohalides or simple carboxylates can be useful for specific reactions the possibility of the variation of such ligands is very limited. As in organometallic catalysis in general, phosphines play a leading role in aqueous organometallic catalysis (AOC), too.

0p boyminsk 10-06-2010 103 15   Download

The international Cartagena Protocol on Biosafety deals primarily with the agricultural definition but many advocacy groups seek to expand it to include post-genetic threats: new molecules, artificial life forms, and even robots which may compete directly in the natural food chain.Biosafety in agriculture, chemistry, medicine, exobiology and beyond will likely require application of the precautionary principle, and a new definition focused on the biological nature of the threatened organism rather than the nature of the threat.

44p nguyen_vu 21-03-2010 151 18   Download