Mostrando 301 - 320 Resultados de 13,004 Para Buscar '"The Crown"', tiempo de consulta: 0.17s Limitar resultados
  1. 301
    “…The data collected included the following: smoking status, the crown–rump length (CRL) of the pregnancy at the first ultrasound that showed an embryonic heart rate, the gestation in days and the CRL at another ultrasound up to the nuchal translucency scan and the gestation in days. …”
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  2. 302
    “…Crownphyrins are hybrid macrocycles combining structural features of porphyrin and crown ethers. The molecular architecture renders them an intriguing class of hosts capable of binding neutral, and ionic guests. …”
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  3. 303
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  9. 309
    “…The dimethyl­ammonium cation and the water mol­ecule inter­act with the 18-crown-6 unit: N—H⋯O hydrogen bonds are formed between the ammonium NH(2) (+) group and four O atoms of the crown ether, while the water mol­ecule on the other side of 18-crown-6 ring forms O—H⋯O hydrogen bonds with two other O atoms of the crown ether. …”
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  10. 310
    por Guo, Min, Zhao, Min Min
    Publicado 2010
    “…The reaction of 4-bromo­aniline, 18-crown-6, and perchloric acid in methanol yields the title compound, C(6)H(7)BrN(+)·ClO(4) (−)·C(12)H(24)O(6), in which the protonated –NH(3) (+) group forms three bifurcated N—H⋯O hydrogen bonds to the O atoms of the crown ether.…”
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  11. 311
    por Zhang, Yi, Zhao, Min-Min
    Publicado 2011
    “…The cation, anion and 18-crown-6 mol­ecule all have crystallographically imposed mirror symmetry.…”
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  12. 312
    por Wang, Wen-zhe, Li, Xiu-juan, Wang, Na
    Publicado 2011
    “…In the title compound, C(7)H(10)N(+)·ClO(4) (−)·C(20)H(24)O(6), the proton­ated benzyl­amine cation forms a rotator–stator complex with the 18-crown-6 (1,4,7,10,13,16-hexa­oxacyclo­octa­deca­ne) mol­ecule via N—H⋯O hydrogen bonds. …”
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  13. 313
    por Wang, Yu-Feng
    Publicado 2011
    “…In the title compound, C(7)H(10)N(+)·ClO(4) (−)·C(12)H(24)O(6), the 4-methyl­anilinium cation inter­acts with an 18-crown-6 mol­ecule forming a rotator–stator-like structure through bifurcated N—H⋯(O,O) hydrogen bonds between the ammonium group of the cation and the O atoms of the crown ether mol­ecule. …”
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  14. 314
    por Jin, Yu
    Publicado 2011
    “…In the title compound, CH(3)NH(3) (+)·BF(4) (−)·C(12)H(24)O(6), the methyl­ammonium cation makes three N—H⋯O hydrogen bonds to the 18-crown-6 mol­ecule. The –NH(3) (+) and –CH(3) groups of the cation adopt a staggered conformation. …”
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  15. 315
    “…Gemination, a relatively uncommon dental anomaly, is characterized by its peculiar representation as a tooth with a bifid crown and a common root and root canal. It usually occurs in primary dentition. …”
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  16. 316
    “…Accumulation of macrophages and T cells within crown-like structures (CLS) in subcutaneous adipose tissue predicts disease severity in obesity related insulin resisance (OIR). …”
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  17. 317
    “…Then, on one representative tree per plot, we additionally recorded epiphytic species in the crown, using tree climbing techniques. Per tree, on average 54% of lichen and 20% of bryophyte species were overlooked if the crown was not been included. …”
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  18. 318
    “…In this study, GC-MS was used to detect metabolic changes in the overwintering crown tissue of oat (Avena sativa L.) during a fourteen day time-course after freezing. …”
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  20. 320
    “…The crowned dens syndrome (CDS), also known as periodontoid calcium pyrophosphate dehydrate crystal deposition disease, is typified clinically by severe cervical pain, neck stiffness and atlantoaxial synovial calcification which could be misdiagnosed as meningitis, epidural abscess, polymyalgia rheumatica, giant cell arthritis, rheumatoid arthritis, cervical spondylitis or metastatic spinal tumor. …”
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