Mostrando 281 - 300 Resultados de 2,278 Para Buscar '"chemist"', tiempo de consulta: 0.18s Limitar resultados
  1. 281
    por Kuliaev, Pavel O., Pidko, Evgeny A.
    Publicado 2019
    “…Optimization and execution of chemical reactions are to a large extend based on experience and chemical intuition of a chemist. The chemical intuition is rooted in the phenomenological Le Chatelier's principle that teaches us how to shift equilibrium by manipulating the reaction conditions. …”
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  2. 282
    por Wang, Jingyi, Lei, Ting
    Publicado 2020
    “…The aim of this review is to provide polymer chemist a basic concept of polymer based SWNT separation, as well as some polymer design strategies, influential factors and potential applications.…”
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  3. 283
    Publicado 2020
    “…Trained as a supramolecular chemist and after a postdoctoral stay and working on click chemistry in Sharpless’s group he started his independent research career working on organic electronics, porous materials, and covalent organic frameworks (COFs). …”
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  4. 284
    “…Due to the complexity of the chemical pattern language SMARTS, an easy‐to‐use toolbox enabling every chemist to understand, design and modify chemical patterns is urgently needed. …”
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  5. 285
    “…From the analysis of the most recent literature, it seems clear that rhodium-catalyzed processes still represent a stimulating challenge for the metalloorganic chemist that is far from being over.…”
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  6. 286
    “…Therefore, the extent of the hands-on expertise of chemists required during the verification process was also evaluated. …”
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  7. 287
    “…A technical manager, being a chemist, pharmacist, or pharmacy manager, was associated with having computer equipment and dispensing homeopathic products. …”
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  8. 288
    “…However, soils are extremely complex matrices, which present a challenge to any analytical chemist, since the extraction of a wide range of compounds with diverse physicochemical properties, such as pesticides, at trace levels is not an easy task. …”
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  9. 289
    por Miller, Steve
    Publicado 2012
    “…Thomson and the Chicago chemist Takeshi Oka. And we are given an insider’s view of just how astronomers, making use of telescopes and Earth-orbiting satellites, have put together our modern view of the Chemical Cosmos.…”
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  10. 290
    por Mehring, Michael
    Publicado 1983
    “…It always has been an extremely valuable tool to the organic chemist by supplying molecular "finger print" spectra at the atomic level. …”
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  11. 291
    por Wick, David
    Publicado 1995
    “…My father, an organic chemist at a Midwestern university, also had to give that dreaded annual lecture. …”
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  12. 292
  13. 293
    “…While the catalysts developed so far are remarkably effective at activating polarized functional groups, chemists have not yet been able to use organic Brønsted acids to catalyze highly enantioselective transformations of unactivated carbon-carbon multiple bonds. …”
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  14. 294
    “…These features can be highlighted within CheS-Mapper, which aids the chemist to better understand patterns and regularities and relate the observations to established scientific knowledge. …”
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  15. 295
    “…Proteins represent the most sophisticated building blocks available to an organism or the laboratory chemist. Yet, in contrast to nearly all other types of molecular building blocks, the designed self-assembly of proteins has been largely inaccessible owing to the chemical and structural heterogeneity of protein surfaces. …”
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  16. 296
    “…The capabilities that these apps can offer to the practicing chemist are approaching those of conventional desktop-based software, but apps tend to be focused on a relatively small range of tasks. …”
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  17. 297
    “…In a chemical sense, thiophenes are somewhat obdurate and hence their removal from fossil fuels poses problems for the industrial chemist. Sulfur K-edge X-ray absorption spectroscopy provides key information on thiophenic components in fuels. …”
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  18. 298
    “…We are hopeful that this new version will be a useful tool for the computational- and medicinal-chemist community.…”
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  19. 299
    “…While computational prediction of chemical reactivity is possible it usually requires expert knowledge and there are relatively few computational tools that can be used by a bench chemist to help guide synthesis. The RegioSQM method for predicting the regioselectivity of electrophilic aromatic substitution reactions of heteroaromatic systems is presented in this paper. …”
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  20. 300
    “…Multicomponent reactions (MCRs) have proved as a valuable tool for organic and medicinal chemist because of their ability to introduce a large degree of chemical diversity in the product in a single step and with high atom economy. …”
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