Mostrando 2,241 - 2,260 Resultados de 10,256 Para Buscar '"donating"', tiempo de consulta: 0.28s Limitar resultados
  1. 2241
  2. 2242
    por Foy, D.S., Friedrichs, K.R., Bach, J.F.
    Publicado 2015
    “…BACKGROUND: People donating blood more than twice annually are at risk of developing iron deficiency. …”
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  3. 2243
    “…Both electron-withdrawing and electron-donating substituents in the phenyl ring of PSAA facilitate the reaction rate. …”
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  4. 2244
    “…Our results indicated that it was not sufficient to consider only either the effect of electron-withdrawing or electron-donating effects on biological activities instead of the total electronic effects. …”
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  5. 2245
    “…In this study, an improved synthesis method for novel fluorescent benzothiazole-based cyclic azacyanine (CAC) dyes bearing different electron-donating/withdrawing groups on their scaffold is presented. …”
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  6. 2246
    “…Here we present the anion binding and anion transport properties of a series of calix[6]arenes decorated on their small rim with either halogen bond or hydrogen bond donating groups. We show that the halogen bond donating iodotriazole groups enable highly selective transport of chloride and nitrate anions, without transport of protons or hydroxide, at rates similar to those observed with thiourea or squaramide groups.…”
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  7. 2247
    “…The effect of electron-donating units on the absorption but not emission for BODIPYs was suppressed compared to aza-BODIPYs. …”
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  8. 2248
    “…Medication use, disease diagnoses and consulting a GP were associated with a 20–40% increased risk to stop donating and a lower donation intensity, when adjusting for age, number of donations and new donor status. …”
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  9. 2249
    “…Phenolates substituted with a weak electron donating group enable intumescence while those with an electron withdrawing group or strong electron donating group suppresses intumescence. …”
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  10. 2250
    “…We prepared a series of arylaminoanthraquinone derivatives, including those with electron-accepting sulfone units and/or with electron-donating dialkylamino units. A color-tunable anthraquinone library that reached into the NIR region could be prepared through the precise control of frontier orbitals. …”
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  11. 2251
    “…The issues considered are the electron-donating properties of NH(2), its geometry, π-electron delocalization in purine rings and tautomeric stability. …”
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  12. 2252
    “…Additionally, the contour map results suggested that structural characteristics of phenolics acids favorable for the high DPPH• scavenging activity might include: (1) bulky and/or electron-donating substituent groups on the phenol ring; (2) electron-donating groups at the meta-position and/or hydrophobic groups at the meta-/ortho-position; (3) hydrogen-bond donor/electron-donating groups at the ortho-position. …”
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  13. 2253
    “…In addition, the thermodynamic hydride donating abilities of BNAH, F420H, and iAscH(−) were also discussed, and the order of thermodynamic hydride donating abilities was BNAH > F420H > iAscH(−). …”
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  14. 2254
    por Wood, John Andy
    Publicado 2021
    “…The 10-year longitudinal dataset creates the opportunity to calculate negative and positive word of mouth on donating behavior.…”
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  15. 2255
    “…Investigation of the substitution at the 3-position of phenanthrene revealed that the electron-donating functionality can well preserve the S configuration. …”
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  16. 2256
    “…[Image: see text] The present study investigates the effect of the substitution of salicylaldehyde hydrazones at two selected positions, i.e., the para-position with regard to the proton-donating and proton-accepting centers forming the hydrogen bridge. …”
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  17. 2257
    “…We present that antifouling performance of cellulose esters evaluated by means of the VCG theory decreases with increasing carbon number in the substituent because of the high electron-donating nature of short aliphatic ester groups. When a long aliphatic ester group is required in terms of other properties such as resistance to chlorine, introducing it together with another substituent with an electron-donating nature such as an ethylene glycol moiety may strike a balance between antifouling and other performances.…”
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  18. 2258
    “…[Image: see text] It is well-known that for an electron transfer reaction, the electron-donating ability of electron donors and the electron-accepting ability of electron acceptors can be quantitatively described by the oxidation potential of electron donors and the reduction potential of electron acceptors. …”
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  19. 2259
    “…Indicated that electron-donating groups on the para position of aryl halide decreased the catalytic conversion while electron-withdrawing groups increased the catalytic conversion this was due to the high nucleophilicity of the electron-donating substituents.…”
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  20. 2260
    “…Modulation of the electron donating and withdrawing properties of organic semiconductors is necessary for organic photovoltaics research. …”
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