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Artículos de revistas sobre el tema "Chemical approach"

Autor: Grafiati

Publicado: 11 de marzo de 2023

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1

Cortini, Massimo y Domenico Anastasio. "Chemical banding in volcanic minerals: a statistical phenomenological approach". European Journal of Mineralogy 13, n.º 3 (29 de mayo de 2001): 571–75. http://dx.doi.org/10.1127/0935-1221/2001/0013-0571.

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2

Liu, Yu, Mark Mercola y Robert J. Schwartz. "The All-Chemical Approach". Circulation Research 119, n.º 4 (5 de agosto de 2016): 505–7. http://dx.doi.org/10.1161/circresaha.116.309146.

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3

Bartlett, P. N. "Integrated chemical systems. A chemical approach to nanotechnology". Journal of Electroanalytical Chemistry 387, n.º 1-2 (mayo de 1995): 151. http://dx.doi.org/10.1016/0022-0728(95)90297-x.

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4

Zaikov, Gennady y Marina Artsis. "Degradation of polymers in aggressive media. Kinetic approach". Chemistry & Chemical Technology 3, n.º 1 (15 de marzo de 2009): 29–40. http://dx.doi.org/10.23939/chcht03.01.029.

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The degradation of polymers in aggressive media is a complex physico-chemical process including adsorption, diffusion and the dissociation of chemically unstable bonds. The course of degradation has a number of special features, which are linked both with the specific structure of polymeric materials and with specific kinetics of reactions in solids

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5

Sato, H. y H. Zhang. "Atomistic Approach of Chemical Diffusion". Defect and Diffusion Forum 95-98 (enero de 1993): 57–74. http://dx.doi.org/10.4028/www.scientific.net/ddf.95-98.57.

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6

Marks, Friedrich. "Chemical Carcinogenesis The Multistage Approach". Interdisciplinary Science Reviews 14, n.º 3 (1 de septiembre de 1989): 233–40. http://dx.doi.org/10.1179/030801889789797970.

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7

Salakhutdinov, N. F., L. N. Rogoza y G. A. Tolstikov. "Hypercholesterolemia: Chemical Aspect of Approach". Current Medicinal Chemistry 18, n.º 26 (1 de septiembre de 2011): 4076–105. http://dx.doi.org/10.2174/092986711796957248.

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8

Kocherginsky, Nikolai y Martin Gruebele. "Mechanical approach to chemical transport". Proceedings of the National Academy of Sciences 113, n.º 40 (19 de septiembre de 2016): 11116–21. http://dx.doi.org/10.1073/pnas.1600866113.

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Nonequilibrium thermodynamics describes the rates of transport phenomena with the aid of various thermodynamic forces, but often the phenomenological transport coefficients are not known, and the description is not easily connected with equilibrium relations. We present a simple and intuitive model to address these issues. Our model is based on Lagrangian dynamics for chemical systems with dissipation, so one may think of the model as physicochemical mechanics. Using one main equation, the model allows a systematic derivation of all transport and equilibrium equations, subject to the limitation that heat generated or absorbed in the system must be small for the model to be valid. A table with all major examples of transport and equilibrium processes described using physicochemical mechanics is given. In equilibrium, physicochemical mechanics reduces to standard thermodynamics and the Gibbs–Duhem relation, and we show that the First and Second Laws of thermodynamics are satisfied for our system plus bath model. Out of equilibrium, our model provides relationships between transport coefficients and describes system evolution in the presence of several simultaneous external fields. The model also leads to an extension of the Onsager–Casimir reciprocal relations for properties simultaneously transported by many components.

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9

Lee, M. Howard. "Chemical potential: Gibbs-Duhem approach". Physical Review E 53, n.º 5 (1 de mayo de 1996): 5488–90. http://dx.doi.org/10.1103/physreve.53.5488.

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10

Delgado, Juan Luis, Pierre-Antoine Bouit, Salvatore Filippone, MaÁngeles Herranz y Nazario Martín. "Organic photovoltaics: a chemical approach". Chemical Communications 46, n.º 27 (2010): 4853. http://dx.doi.org/10.1039/c003088k.

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11

Strobel, Howard A., William R. Heineman y D. Thorburn Burns. "Chemical instrumentation: a systematic approach". Analytica Chimica Acta 244 (1991): 294. http://dx.doi.org/10.1016/s0003-2670(00)82515-5.

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12

Kuznetsov, An M., R. R. Nazmutdinov y M. S. Shapnik. "Water adsorption—quantum chemical approach". Electrochimica Acta 34, n.º 12 (diciembre de 1989): 1821–28. http://dx.doi.org/10.1016/0013-4686(89)85069-8.

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13

Caron, Paul R. "Genetic approach to chemical genetics ▾". Drug Discovery Today 7, n.º 22 (noviembre de 2002): 1121. http://dx.doi.org/10.1016/s1359-6446(02)02506-0.

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14

Carey, V. P. "Chemical instrumentation: A systematic approach". Experimental Thermal and Fluid Science 3, n.º 5 (septiembre de 1990): 553–54. http://dx.doi.org/10.1016/0894-1777(90)90069-j.

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15

Marks, Friedrich. "Chemical Carcinogenesis The Multistage Approach". Interdisciplinary Science Reviews 14, n.º 3 (septiembre de 1989): 233–40. http://dx.doi.org/10.1179/isr.1989.14.3.233.

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16

Fendler, Janos H. "Colloid chemical approach to nanotechnology". Korean Journal of Chemical Engineering 18, n.º 1 (enero de 2001): 1–13. http://dx.doi.org/10.1007/bf02707191.

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17

Liu, Hong-Mei y Ji-Huan He. "Variational approach to chemical reaction". Computers & Chemical Engineering 28, n.º 9 (agosto de 2004): 1549. http://dx.doi.org/10.1016/j.compchemeng.2004.01.006.

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18

Anggara Nenohai, Jacky, Sri Rahayu y I. Wayan Dasna. "Validity and effectiveness of chemical practicum e-modules of various applications with ethnoscience approach in chemical learning: Analysis review". Jurnal Pendidikan Kimia 14, n.º 2 (15 de agosto de 2022): 70–78. http://dx.doi.org/10.24114/jpkim.v14i2.33574.

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This study intends to determine (1) the relevance of the practicum e module to the curriculum in chemistry learning; (2) the validity of the chemistry practicum e-module from various applications; and (3) the effectiveness of the application of the Ethnoscience-integrated chemistry practicum e-module in chemistry learning. This study uses the Systematic Literature Review (SLR) method using online article databases, namely ERIC and Google Scholar, which are limited to the last 5 years. The articles reviewed were 15 articles according to the topic. The results of the review show that the practicum e-module is in line with the curriculum in chemistry learning. Not to mention, practicum guides that go hand in hand with the times are very essential to be developed so that students can adapt well and learning becomes efficient with the current developing era. So, it is important to develop an electronic integrated practicum guide that creates balance between hard skills and soft skills in the curriculum concept. The validity of the chemistry practicum e-module from various applications in the implementation of online and offline practicum can be accepted by teachers and students, so that the teaching and learning process in proving theories in terms of practicum can be prepared. Especially in the future pandemic crisis, it is necessary to develop students' scientific literacy in terms of content, competence, context, and attitudes that are focused on preparing the next generation of scientific literacy through a culture-based curriculum to produce more contextual learning.

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19

Nieto, Fernando. "Chemical composition of metapelitic chlorites: X-ray diffraction and optical property approach". European Journal of Mineralogy 9, n.º 4 (23 de julio de 1997): 829–42. http://dx.doi.org/10.1127/ejm/9/4/0829.

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20

Gobas, Frank A. P. C., Philipp Mayer, Thomas F. Parkerton, Robert M. Burgess, Dik van de Meent y Todd Gouin. "A chemical activity approach to exposure and risk assessment of chemicals". Environmental Toxicology and Chemistry 37, n.º 5 (26 de abril de 2018): 1235–51. http://dx.doi.org/10.1002/etc.4091.

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21

Geiser, Ken. "Redesigning Chemicals Policy: A Very Different Approach". NEW SOLUTIONS: A Journal of Environmental and Occupational Health Policy 21, n.º 3 (14 de octubre de 2011): 329–44. http://dx.doi.org/10.2190/ns.21.3.c.

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The chemical policies of the 1970s were limited by the assumptions that lie at their foundation and focused narrowly on only the most hazardous chemicals. The effective management of chemicals requires policies that focus on the entire body of chemicals and the production systems that make them. The future will require comprehensive chemicals policies that work within a systems framework to phase out the most hazardous chemicals, progressively transition away from the remaining chemicals of concern by substituting safer chemicals and technologies, and invest heavily in a new generation of safer and more sustainable chemicals.

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22

Kazerovska, Kristīne, Māris Kļaviņš y Judīte Dipāne. "Approaches for Management of Chemical Substances: Challenges and Solutions". Proceedings of the Latvian Academy of Sciences. Section B. Natural, Exact, and Applied Sciences. 62, n.º 1-2 (1 de enero de 2008): 1–8. http://dx.doi.org/10.2478/v10046-008-0008-z.

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Approaches for Management of Chemical Substances: Challenges and Solutions This article analyses the development of approaches for management of chemical substances in the frame of current reform of chemicals policy at the European Union level with regard to implementation of REACH Regulation No. 1907/2006. REACH is considered as an integrated approach to the control of the production, import and use of chemicals in the European Union, especially of those chemical substances with the most hazardous properties. The new approach covers both the strengths of old and new chemical policies, also requires revision of existing understandings about chemical production, import and use: responsibilities of all involved actors, the chemicals supply chain, and information flow within chemicals supply chain.

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23

Schneider, Wolfgang B. y Alexander A. Auer. "Constant chemical potential approach for quantum chemical calculations in electrocatalysis". Beilstein Journal of Nanotechnology 5 (20 de mayo de 2014): 668–76. http://dx.doi.org/10.3762/bjnano.5.79.

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In order to simulate electrochemical reactions in the framework of quantum chemical methods, density functional theory, methods can be devised that explicitly include the electrochemical potential. In this work we discuss a Grand Canonical approach in the framework of density functional theory in which fractional numbers of electrons are used to represent an open system in contact with an electrode at a given electrochemical potential. The computational shortcomings and the additional effort in such calculations are discussed. An ansatz for a SCF procedure is presented, which can be applied routinely and only marginally increases the computational effort of standard constant electron number approaches. In combination with the common implicit solvent models this scheme can become a powerful tool, especially for the investigation of omnipresent non-faradaic effects in electrochemistry.

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24

Low, Yen, Alexander Sedykh, Denis Fourches, Alexander Golbraikh, Maurice Whelan, Ivan Rusyn y Alexander Tropsha. "Integrative Chemical–Biological Read-Across Approach for Chemical Hazard Classification". Chemical Research in Toxicology 26, n.º 8 (5 de agosto de 2013): 1199–208. http://dx.doi.org/10.1021/tx400110f.

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25

Klebl, Bert M. "Chemical kinomics – a target gene family approach in chemical biology". Drug Discovery Today: Technologies 1, n.º 1 (septiembre de 2004): 25–34. http://dx.doi.org/10.1016/j.ddtec.2004.08.013.

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26

Chervin, C., S. Kreidl, A. Hamilton y S. Whitmore. "NON-CHEMICAL DISINFESTATION: A FREEZING APPROACH". Acta Horticulturae, n.º 518 (marzo de 2000): 187–92. http://dx.doi.org/10.17660/actahortic.2000.518.25.

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27

Yamaoka, Ryohei. "Chemical Approach to Understanding Ant Microcosmos". Journal of the Visualization Society of Japan 19, Supplement2 (1999): 7–8. http://dx.doi.org/10.3154/jvs.19.supplement2_7.

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28

Aono, Yoshinori, Shuhei Inoue y Yukihiko Matsumura. "Quantum chemical approach to photochromic particles". Proceedings of the Symposium on Micro-Nano Science and Technology 2020.11 (2020): 27P2—MN2–3. http://dx.doi.org/10.1299/jsmemnm.2020.11.27p2-mn2-3.

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29

Robertson, Joseph W. F., Madhav L. Ghimire y Joseph E. Reiner. "Nanopore sensing: A physical-chemical approach". Biochimica et Biophysica Acta (BBA) - Biomembranes 1863, n.º 9 (septiembre de 2021): 183644. http://dx.doi.org/10.1016/j.bbamem.2021.183644.

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30

Benkö, Gil, Florian Centler, Peter Dittrich, Christoph Flamm, Bärbel M. R. Stadler y Peter F. Stadler. "A Topological Approach to Chemical Organizations". Artificial Life 15, n.º 1 (enero de 2009): 71–88. http://dx.doi.org/10.1162/artl.2009.15.1.15105.

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Large chemical reaction networks often exhibit distinctive features that can be interpreted as higher-level structures. Prime examples are metabolic pathways in a biochemical context. We review mathematical approaches that exploit the stoichiometric structure, which can be seen as a particular directed hypergraph, to derive an algebraic picture of chemical organizations. We then give an alternative interpretation in terms of set-valued set functions that encapsulate the production rules of the individual reactions. From the mathematical point of view, these functions define generalized topological spaces on the set of chemical species. We show that organization-theoretic concepts also appear in a natural way in the topological language. This abstract representation in turn suggests the exploration of the chemical meaning of well-established topological concepts. As an example, we consider connectedness in some detail.

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31

Blanco-Cuaresma, Sergi y Didier Fraix-Burnet. "A phylogenetic approach to chemical tagging". Astronomy & Astrophysics 618 (octubre de 2018): A65. http://dx.doi.org/10.1051/0004-6361/201832815.

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Context. The chemical tagging technique is a promising approach to reconstructing the history of the Galaxy by only using stellar chemical abundances. Multiple studies have undertaken this analysis and they have raised several challenges. Aims. Using a sample of open cluster stars, we wish to address two issues: minimize chemical abundance differences whose origin is linked to the evolutionary stage of the stars and not their original composition and evaluate a phylogenetic approach to group stars based on their chemical composition. Methods. We derived differential chemical abundances for 207 stars, belonging to 34 open clusters, using the Sun as reference star (classical approach) and a dwarf plus a giant star from the open cluster M 67 as reference (new approach). These abundances were then used to perform two phylogenetic analyses: cladistics (maximum parsimony) and neighbor joining, together with a partitioning unsupervised classification analysis with k-means. The resulting groupings were finally confronted to the true open cluster memberships of the stars. Results. We successfully reconstruct most of the original open clusters when carefully selecting a subset of the abundances derived differentially with respect to M 67. We find a set of eight chemical elements that yield the best result and discuss the possible reasons for these elements to be good tracers of the history of the Galaxy. Conclusions. Our study shows that unraveling the history of the Galaxy by only using stellar chemical abundances is greatly improved provided that i) we perform a differential spectroscopic analysis with respect to an open cluster instead of the Sun, ii) select the chemical elements that are good tracers of the history of the Galaxy, and iii) use tools that are adapted to detect evolutionary tracks such as phylogenetic approaches.

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32

Shabarova, Zoe A. "A chemical approach to antisense technology". Collection of Czechoslovak Chemical Communications 55, s1 (1990): 257–59. http://dx.doi.org/10.1135/cccc1990s257.

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33

Phillips, Diana A. "A Cooperative Approach to Chemical Education". Journal of Chemical Education 75, n.º 6 (junio de 1998): 688. http://dx.doi.org/10.1021/ed075p688.

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34

Copi, Craig J. "A Stochastic Approach to Chemical Evolution". Astrophysical Journal 487, n.º 2 (octubre de 1997): 704–18. http://dx.doi.org/10.1086/304627.

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35

Pagonabarraga, I., A. Pérez-Madrid y J. M. Rubí. "Fluctuating hydrodynamics approach to chemical reactions". Physica A: Statistical Mechanics and its Applications 237, n.º 1-2 (marzo de 1997): 205–19. http://dx.doi.org/10.1016/s0378-4371(96)00377-9.

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36

Sunandana, C. S. "A crystallo-chemical approach to superionics". Journal of Physics and Chemistry of Solids 58, n.º 9 (septiembre de 1997): 1359–65. http://dx.doi.org/10.1016/s0022-3697(97)00027-9.

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37

Kobayashi, Satoshi. "Enumeration approach to computing chemical equilibria". Theoretical Computer Science 499 (agosto de 2013): 51–87. http://dx.doi.org/10.1016/j.tcs.2013.05.017.

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38

Lasne, Y. "Physico-chemical approach to homœopathic drugs". British Homeopathic Journal 83, n.º 02 (abril de 1994): 96. http://dx.doi.org/10.1016/s0007-0785(94)80029-4.

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39

Rondoni, L. "Complex Chemical Reactions: A Probabilistic Approach". Nuclear Science and Engineering 112, n.º 4 (diciembre de 1992): 392–403. http://dx.doi.org/10.13182/nse92-a23988.

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40

Khalil, N. "Quantum chemical approach of corrosion inhibition". Electrochimica Acta 48, n.º 18 (agosto de 2003): 2635–40. http://dx.doi.org/10.1016/s0013-4686(03)00307-4.

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41

Ayers, Paul W., Stijn Fias y Farnaz Heidar-Zadeh. "The axiomatic approach to chemical concepts". Computational and Theoretical Chemistry 1142 (octubre de 2018): 83–87. http://dx.doi.org/10.1016/j.comptc.2018.09.006.

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42

SINGER, DENNIS y P. G. SINGER. "Fuzzy chemical kinetics: an algorithmic approach". International Journal of Systems Science 24, n.º 7 (julio de 1993): 1363–76. http://dx.doi.org/10.1080/00207729308949566.

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43

Williams, R. J. P. "A chemical systems approach to evolution". Dalton Transactions, n.º 10 (2007): 991. http://dx.doi.org/10.1039/b616609c.

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44

Howard, Ralph W. "Insect Chemical Ecology: an Evolutionary Approach". Annals of the Entomological Society of America 86, n.º 4 (1 de julio de 1993): 507–8. http://dx.doi.org/10.1093/aesa/86.4.507.

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45

Vlad, Marcel O. y John Ross. "Thermodynamic approach to nonequilibrium chemical fluctuations". Journal of Chemical Physics 100, n.º 10 (15 de mayo de 1994): 7295–309. http://dx.doi.org/10.1063/1.467265.

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46

Williams, Robert Joseph Paton. "A chemical systems approach to evolution". RENDICONTI LINCEI 21, n.º 1 (19 de septiembre de 2009): 47–70. http://dx.doi.org/10.1007/s12210-009-0053-9.

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47

Bicerano, Jozef y Stanford R. Ovshinsky. "Chemical bond approach to glass structure". Journal of Non-Crystalline Solids 75, n.º 1-3 (octubre de 1985): 169–75. http://dx.doi.org/10.1016/0022-3093(85)90218-2.

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48

Doyle, M. y P. Mansfields. "Chemical-shift imaging: A hybrid approach". Magnetic Resonance in Medicine 5, n.º 3 (septiembre de 1987): 255–61. http://dx.doi.org/10.1002/mrm.1910050306.

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49

Dyer, Scott, Michael St J Warne, Joseph S. Meyer, Heather A. Leslie y Beate I. Escher. "Tissue residue approach for chemical mixtures". Integrated Environmental Assessment and Management 7, n.º 1 (8 de julio de 2010): 99–115. http://dx.doi.org/10.1002/ieam.106.

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50

Lee, Jun-Seok, Jae Wook Lee, Namyoung Kang, Hyung-Ho Ha y Young-Tae Chang. "Diversity-Oriented Approach for Chemical Biology". Chemical Record 15, n.º 2 (12 de febrero de 2015): 495–510. http://dx.doi.org/10.1002/tcr.201402087.

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