Mostrando 261 - 280 Resultados de 2,278 Para Buscar '"chemist"', tiempo de consulta: 0.19s Limitar resultados
  1. 261
    Publicado 2022
    “…We would like to honor a remarkable chemist, a visionary researcher and an inspiring teacher for several generations of chemists and materials scientists worldwide, who has stimulated and shaped this research field over several decades. …”
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  2. 262
    por Smith, Norman O
    Publicado 1982
    “…Although statistical thermodynamics comprises an essential part of the college training of a chemist, its treatment in general physical chem­ istry texts is, of necessity, compressed to the point where the less competent student is unable to appreciate or comprehend its logic and beauty, and is reduced to memorizing a series of formulas. …”
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  3. 263
    “…We envisage that, given its orthogonality to other spectroscopic methods, its low cost, and its ease of implementation, DS will be a valuable addition to the process chemist’s analytical toolbox.…”
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  4. 264
    Publicado 2023
    “…Dr David Nelson talks about his motivation for being a chemist, his viewpoints on the research field of homogeneous catalysis, as well as his experience of being an Editorial Board Member for Communications Chemistry.…”
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  5. 265
    “…[Image: see text] This microperspective covers the most recent research outcomes of artificial intelligence (AI) generated molecular structures from the point of view of the medicinal chemist. The main focus is on studies that include synthesis and experimental in vitro validation in biochemical assays of the generated molecular structures, where we analyze the reported structures’ relevance in modern medicinal chemistry and their novelty. …”
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  6. 266
    “…Historically, in the 1950s, the chemist Linus Pauling established a relationship between decreased longevity and obesity. …”
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  7. 267
    “…Organocatalysis, now running its second decade of life, is being considered one of the main tools a synthetic chemist has to perform asymmetric catalysis. In this review the synthesis of six-membered rings, that contain multiple chiral centers, either by a ring closing process or by a functionalization reaction on an already existing six-membered ring, utilizing bifunctional (thio)ureas will be summarized. …”
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  8. 268
    “…Traditionally employed in the synthesis of small ring systems and rearrangement chemistry, sulfur-based ylides occupy a unique position in the toolbox of the synthetic organic chemist. In recent years a number of pioneering researchers have looked to expand the application of these unorthodox reagents through the use of transition metal catalysis. …”
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  9. 269
    por Hu, Jiang-Miao
    Publicado 2018
    “…Zhou Jun, Academician of Chinese Academy of Sciences (1999), is a phytochemist and medicinal chemist of China. He is one of the pioneers of Kunming Institute of Botany, CAS and a major founder of the State Key Laboratory of Phytochemistry and Plant Resources in West China. …”
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  10. 270
    “…We also focus on the different new strategies and results obtained during the past decade in the field of antifungal design against this emerging C. auris pathogen yeast, based on a medicinal chemist point of view. Critical analyses of chemical features and physicochemical descriptors will be carried out along with the description of reported strategies.…”
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  11. 271
    “…By employing mechanochemistry using glassware readily available to every organic chemist, we were able to synthesise three novel organic cage compounds exemplarily and to speed up the synthesis of a ferrocene-containing macrocycle by a factor of 288 compared to the solution-based synthesis. …”
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  12. 272
    “…While fully in agreement with Goutarel’s conclusions, the specific example of pandamine should serve as a cautionary tale to any chemist interested in natural products, encouraging access to initial structural assignments rather than relying solely on subsequent, possibly erroneous, structure depictions of a natural product.…”
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  13. 273
    por Riniker, Sereina, Landrum, Gregory A
    Publicado 2013
    “…Similarity is an appealing approach because, with many fingerprint types, it provides intuitive results: a chemist looking at two molecules can understand why they have been determined to be similar. …”
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  14. 274
    por Singerman, David
    Publicado 2007
    “…To direct the Polarimetry Section, Director Stratton hired the young chemist Frederick Bates, who went on to make significant contributions to the discipline of sugar chemistry. …”
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  15. 275
    por Davis, Holly J., Phipps, Robert J.
    Publicado 2017
    “…Given these tremendous advances it is surprising that there are still a relatively limited number of examples of non-covalent interactions being harnessed for control of regioselectivity or site-selectivity in catalysis, two other fundamental selectivity aspects facing the synthetic chemist. This perspective examines the progress that has been made in this area thus far using non-covalent interactions in conjunction with transition metal catalysis as well as in the context of purely organic catalysts. …”
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  16. 276
    por Du, Zhibin, Ali, Akbar
    Publicado 2018
    “…The Wiener polarity number (which, nowadays, known as the Wiener polarity index and usually denoted by W(p)) was devised by the chemist Harold Wiener, for predicting the boiling points of alkanes. …”
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  17. 277
    “…There is an intuitive analogy of an organic chemist's understanding of a compound and a language speaker's understanding of a word. …”
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  18. 278
    “…The synthetic procedure suits the demand of a modern organic chemist, as it tolerates a wide range of functional groups, it is atom economic and easily scalable.…”
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  19. 279
    “…The current whitening methods are analyzed and discussed from a chemist’s viewpoint. Frequently used whitening agents are abrasives (mechanical removal of stains), antiredeposition agents (prevention of deposition of chromophores), colorants (intended to lead to a white color), proteases (degradation of proteins), peroxides (oxidation of organic chromophores), and surfactants (removal of hydrophobic compounds from tooth surface). …”
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  20. 280
    por Choi, Moon
    Publicado 2019
    “…The Anthropocene, a term popularized in 2010 by Nobel Prize-winning chemist Paul Crutzen, refers to the current epoch during which human beings have begun to have a significant impact on the earth, e.g., the environment and climate change. …”
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