Results 1 to 10 of about 4,640,674 (208)

Political risks: the “red shift” in debt sustainability analysis [PDF]

Risk Management Magazine, 2020
Political stability and economic policy uncertainty can be key determinants of sovereign debt dynamics, and we show how they can be incorporated in debt sustainability analysis.
Andrea Consiglio, Stavros Zenios
doaj   +1 more source

DFT Study of conformational flexibilities and interaction profiles of new class of nucleoside analogs having nucleic acid bases pairs (Pyrimidine analogues-Adenine) linked through a 1,2,3-triazole spacer [PDF]

Orbital: The Electronic Journal of Chemistry, 2014
DFT calculations predict the existence of three stable conformations (one opened and two closed conformations) of the new class of nucleoside with various substituents (X = H, CH3, F, Cl, and Br).
Abderrahim Boutalib, Hanane Elayadi, Hassan Bihi Lazrek   +2 more
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LHCA4 residues surrounding red chlorophylls allow for fine-tuning of the spectral region for photosynthesis in Arabidopsis thaliana

Frontiers in Plant Science, 2023
Improving far-red light utilization could be an approach to increasing crop production under suboptimal conditions. In land plants, only a small part of far-red light can be used for photosynthesis, which is captured by the antenna proteins LHCAs of ...
Xiuxiu Li, Xiuxiu Li, Lixia Zhu, Jince Song, Wenda Wang, Tingyun Kuang, Gongxian Yang, Chenyang Hao, Xiaochun Qin   +8 more
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The Synthesis, Crystal Structure, DFT Calculations and Optical Properties of Orcinolic Derivatives as OH⁻ Indicators

Crystals, 2022
The structures of 2-(3-hydroxy-5-methylphenoxy)-N-(4-nitrophenyl)acetamide), B1, and 2-(3-hydroxy-5-methylphenoxy)-N-(4-(trifluoromethyl)phenyl)acetamide, B2, are crystallized in the crystal symmetry of the monoclinic structure and in the space group of ...
Boontana Wannalerse, Paradee Kwanmuang, Piangkwan Jansukra, Bussaba Pinchaipat, Tanwawan Duangthongyou, Panitat Hasin, Apisit Songsasen, Kittipong Chainok, Songwut Suramitr   +8 more
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Quntitative structure activity relationship (QSAR) of UV-visible spectrum of some different chalkons [PDF]

شیمی کاربردی روز, 2013
  The UV-visible spectrum of some different chalkons with both electron with-drawing and electron-donating groups have been investigated. The results showed that electron with-drawing groups cause Blue-Shift and electron-donating groups cause Red-Shift.
Salman Rahmani, Ali Amoozadeh
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Absorption and Fluorescence Properties of 3,6-bis(5-bromothiophen-2-yl)-2,5-bis(2-ethylhexyl)-2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione. A Covalent Fluorescence in Solution and in the Solid State

مجلة بغداد للعلوم, 2022
In the cuurent article, the photophysical properties of 3,6-bis(5-bromothiophen-2-yl)-2,5-bis(2-ethylhexyl)-2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione were investigated.
Roza Al-Aqar
doaj   +1 more source

Spectral Evolution in Fiber Lasers With Soliton Self-Frequency Shift Effect

IEEE Photonics Journal, 2021
The generation and evolution process of red shifting in a ultrafast fiber laser with the soliton self-frequency shift are investigated by numerical simulation.
Mengmeng Han, Yueqing Du, Peiyun Cheng, Xuewen Shu   +3 more
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Purification and Characterisation of Two Novel Pigment Proteins from the Carapace of Red Swamp Crayfish (Procambarus clarkii)

Foods, 2021
Pigment proteins play a vital role in the red colour change of the red swamp crayfish (Procambarus clarkii) shell after cooking. In this study, two red-change-related pigment proteins with molecular weights of approximately 170 and 43 kDa—denoted as F1 ...
Hao Chen, Hongwu Ji, Chuang Pan, Di Zhang, Weiming Su, Shucheng Liu, Yijia Deng, Xiaodan Huang   +7 more
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Cosmology and the massive photon frequency shift in the Standard-Model Extension

European Physical Journal C: Particles and Fields, 2021
The total red shift z might be recast as a combination of the expansion red shift and a static shift due to the energy–momentum tensor non-conservation of a photon propagating through Electro-Magnetic (EM) fields.
Alessandro D. A. M. Spallicci, José A. Helayël-Neto, Martín López-Corredoira, Salvatore Capozziello   +3 more
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Enantioselective Recognition of Lysine and Phenylalanine Using an Imidazole Salt-Type Fluorescent Probe Based on H₈-BINOL

Molecules, 2022
An imidazole bromide fluorescent probe (R)-1 based on chiral H8-BINOL was synthesized with a high yield; it was found to have good enantioselective recognition of lysine and phenylalanine using fluorescence analysis.
Zhaoqin Wei, Shi Tang, Xiaoxia Sun, Yu Hu   +3 more
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