Showing 1,881 - 1,900 results of 32,241 for search '(( a step decrease ) OR ( 50 ((((ng decrease) OR (mean decrease))) OR (a decrease)) ))', query time: 0.91s Refine Results
  1. 1881

    Effects of increasing temperature and, CO<sub>2</sub> on quality of litter, shredders, and microorganisms in Amazonian aquatic systems by Renato Tavares Martins (4634317)

    Published 2017
    “…During the experiment mean air temperature and CO<sub>2</sub> concentration ranged from 26.96 ± 0.98ºC and 537.86 ± 18.36 ppmv in the control to 31.75 ± 0.50ºC and 1636.96 ± 17.99 ppmv in the extreme chamber, respectively. …”
  2. 1882
  3. 1883
  4. 1884

    Mechanistic Investigation of the Hydrogenation of Ketones Catalyzed by a Ruthenium(II) Complex Featuring an N-Heterocyclic Carbene with a Tethered Primary Amine Donor: Evidence for... by Wylie W. N. O (1755865)

    Published 2011
    “…The complex [Ru(<i>p</i>-cymene)(<i>m</i>-CH<sub>2</sub>NH<sub>2</sub>)Cl]PF<sub>6</sub> (<b>1</b>) catalyzes the H<sub>2</sub>-hydrogenation of ketones in basic THF under 25 bar of H<sub>2</sub> at 50 °C with a turnover frequency (TOF) of up to 461 h<sup>−1</sup> and a maximum conversion of 99%. …”
  5. 1885

    Mechanistic Investigation of the Hydrogenation of Ketones Catalyzed by a Ruthenium(II) Complex Featuring an N-Heterocyclic Carbene with a Tethered Primary Amine Donor: Evidence for... by Wylie W. N. O (1755865)

    Published 2011
    “…The complex [Ru(<i>p</i>-cymene)(<i>m</i>-CH<sub>2</sub>NH<sub>2</sub>)Cl]PF<sub>6</sub> (<b>1</b>) catalyzes the H<sub>2</sub>-hydrogenation of ketones in basic THF under 25 bar of H<sub>2</sub> at 50 °C with a turnover frequency (TOF) of up to 461 h<sup>−1</sup> and a maximum conversion of 99%. …”
  6. 1886

    Mechanistic Investigation of the Hydrogenation of Ketones Catalyzed by a Ruthenium(II) Complex Featuring an N-Heterocyclic Carbene with a Tethered Primary Amine Donor: Evidence for... by Wylie W. N. O (1755865)

    Published 2011
    “…The complex [Ru(<i>p</i>-cymene)(<i>m</i>-CH<sub>2</sub>NH<sub>2</sub>)Cl]PF<sub>6</sub> (<b>1</b>) catalyzes the H<sub>2</sub>-hydrogenation of ketones in basic THF under 25 bar of H<sub>2</sub> at 50 °C with a turnover frequency (TOF) of up to 461 h<sup>−1</sup> and a maximum conversion of 99%. …”
  7. 1887
  8. 1888
  9. 1889
  10. 1890
  11. 1891
  12. 1892
  13. 1893

    To be funny or not to be funny: Gender differences in student perceptions of instructor humor in college science courses by Katelyn M. Cooper (5634851)

    Published 2018
    “…<div><p>For over 50 years instructor humor has been recognized as a way to positively impact student cognitive and affective learning. …”
  14. 1894
  15. 1895
  16. 1896
  17. 1897
  18. 1898
  19. 1899

    An Analysis of Porphyrin Molecular FlexibilityUse of Porphyrin Diacids by Beisong Cheng (2970567)

    Published 1997
    “…Molecular mechanics calculations, using a modified version of MM2(87) and a newly developed force field for porphyrin diacids, correctly predict that the flexibility of <i>meso</i>-tetraaryl porphyrin diacids decreases as the steric bulk of the peripheral substituents increases:  [H<sub>4</sub>TPyP]<sup>2+</sup> ≈ [H<sub>4</sub>TPP]<sup>2+</sup> > [H<sub>4</sub>T-2,6-(OH)<sub>2</sub> PP]<sup>2+</sup> ≈ [H<sub>4</sub>T-2,6-F<sub>2</sub> PP]<sup>2+</sup> > [H<sub>4</sub>T-2,6-Cl<sub>2</sub> PP]<sup>2+</sup> ≈ [H<sub>4</sub>TMP]<sup>2+</sup>. …”
  20. 1900