Results 21 to 30 of about 5,583,294 (267)
Lexical-Grammatical Means of Expressing Oppositivity in an English Literary Text
RUDN Journal of Language Studies, Semiotics and Semantics, 2021 The article considers the notional nature and peculiarities of genus-species relations between the phenomena of opposition and oppositivity ; it also deals with the lexical-and-grammatica ways of expressing the latter in an English literary text.
Larisa N. Lunkova, Julia I. Frolova
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Diethyl 3,3′-[(4-fluorophenyl)methylidene]bis(1H-indole-2-carboxylate)
IUCrData, 2019 In the title compound, C29H25FN2O4, the mean planes of the indole ring systems (r.m.s. deviations = 0.0107 and 0.0158 Å) are approximately perpendicular to each other, subtending a dihedral angle of 87.43 (16)°. The 4-fluorophenyl ring is twisted by 77.6
Yu-Long Li +6 more
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Crystal structure of diethyl 3,3′-[(2,4-dichlorophenyl)methylidene]bis(1H-indole-2-carboxylate)
Acta Crystallographica Section E: Crystallographic Communications, 2017 In the title compound, C29H24Cl2N2O4, the mean planes of the two indole ring systems (r.m.s. deviations = 0.1249 and 0.0075 Å) are approximately perpendicular to one another, with a dihedral angle of 80.9 (5)° between them.
Yu-Long Li +4 more
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IEEE Access, 2021 A fusion algorithm is proposed for the restoration and enhancement of underwater images. Color balance, contrast optimization and histogram stretching are carried out. To alleviate the effect of color shift in an underwater image, the scalar values of R,
Weilin Luo, Shunqiang Duan, Jiwen Zheng
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Crystal structure of diethyl 3,3′-[(4-nitrophenyl)methylene]bis(1H-indole-2-carboxylate)
Acta Crystallographica Section E: Crystallographic Communications, 2017 In the title compound, C29H25N3O6, the mean planes of the two indole ring systems (r.m.s. deviations = 0.0115 and 0.0082 Å) are approximately perpendicular to one another, making a dihedral angle of 89.7 (5)°; the benzene ring is twisted with respect to ...
Hong-Shun Sun +4 more
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Journal of Ophthalmic & Vision Research, 2022 Purpose: To assess the impact of color and polarity in predicting the changes of visual resolution for different text backgrounds with increasing contrast ratios.
Ai-Hong Chen, Nurulain Muhamad
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A Comparative Study of Antegrade Air Pyelogram and Retrograde Air Pyelogram for Initial Puncture Access during Percutaneous Nephrolithotomy [PDF]
Journal of Clinical and Diagnostic Research, 2017 Introduction: Access into the collecting system is considered to be the most critical step for Percutaneous Nephrolithotomy (PCNL). Aim: The present study provides a comparative view into antegrade air pyelography and retrograde air pyelography ...
Dharmendra K. Jangid +4 more
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Crystal structure of diethyl 3,3′-[(2-fluorophenyl)methylidene]bis(1H-indole-2-carboxylate)
Acta Crystallographica Section E: Crystallographic Communications, 2017 In the title compound, C29H25FN2O4, the mean planes of the two indole ring systems (r.m.s. deviations = 0.1392 and 0.0115 Å) are approximately perpendicular to one another, subtending a dihedral angle of 86.0 (5)°; the benzene ring is twisted with ...
Xin-Hua Lu +4 more
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Scientific Reports, 2020 Gadolinium based contrast agents (GBCAs) are widely used in clinical MRI since the mid-1980s. Recently, concerns have been raised that trace amounts of Gadolinium (Gd), detected in brains even long time after GBCA application, may cause yet unrecognized ...
Johanna Habermeyer +14 more
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Терапевтический архив, 2021 Nowadays, taking into account the number of elderly patients with sеveral associated diseases requiring percutaneous transluminal balloon coronary angioplasty (PTCA), the risk of the development of unwanted complications is also growing.
Olga A. Dmitrieva +5 more
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