Results 51 to 60 of about 34,418 (225)

Bianchi I solutions of effective quadratic gravity

, 2012
It is believed that soon after the Planck time, Einstein's general relativity theory should be corrected to an effective quadratic theory. Numerical solutions for the anisotropic generalization of the Friedmann "flat" model $E^3$ for this effective ...
de Deus, Juliano A., Müller, Daniel
core   +1 more source

Realizations of Real Low-Dimensional Lie Algebras [PDF]

, 2005
Using a new powerful technique based on the notion of megaideal, we construct a complete set of inequivalent realizations of real Lie algebras of dimension no greater than four in vector fields on a space of an arbitrary (finite) number of variables. Our
, Anderson R L, Barut A O, Basarab-Horwath P, Bianchi L, Cerquetelli N, Christodoulakis T, Dynkin E B, Edelstein R M, Fushchych W I, Fushchych W I, Fushchych W I, Fushchych W I, González-López A, González-López A, Hernádez Heredero R, Jacobson N, Kruchkovich G I, Kruchkovich G I, Kruchkovich G I, Lahno V, Lee H C, Lie S, Lie S, Lie S, Lie S, Lie S, Lie S, Lutfullin M, Lutfullin M, Lutfullin M, Lutfullin M, Mahomed F M, Mahomed F M, Maryna O Nesterenko, Maxim W Lutfullin, Milson R, Morozov V V, Mubarakzyanov G M, Mubarakzyanov G M, Mubarakzyanov G M, Mubarakzyanov G M, Ndogmo J C, Ndogmo J C, Ndogmo J-C, Nesterenko M, Olver P, Patera J, Patera J, Petrov A Z, Popovych R, Post G, Post G, Rideau G, Roman O Popovych, Rubin J L, Schmucker A, Schwarz F, Seeley C, Shirokov I, Shirokov I, Tremblay S, Tremblay S, Turkowski P, Turkowski P, Umlauf K A, Vranceanu G, Vyacheslav M Boyko, Wafo Soh C, Yehorchenko I A, Zhdanov R Z, Zhdanov R Z, Zhdanov R Z, Zhdanov R Z   +73 more
core   +1 more source

طراحی مدل تلفیقی سود-ریسک جهت بهینه‌یابی ترکیب منابع و مصارف بانک در عقود بانکی [PDF]

تحقیقات مالی اسلامی (پیوسته), 2020
ارائه تسهیلات در قالب عقود بانکی اگرچه باعث کسب درآمد و بقای بانک می‌شود اما هم‌زمان باید به توان پاسخ‌گویی بانک به سپرده‌گذاران و ریسک مطالبات غیرجاری نیز توجه شود، زیرا اینها عواملی هستند که می‌توانند به ورشکستگی بانک یا مؤسسه اعتباری منجر شوند. در این
مجید نیلی احمدآبادی, امیدعلی عادلی, مرضیه نعمتی فرد   +2 more
doaj   +1 more source

Polarization dependence of coherent phonon generation and detection in highly-aligned single-walled carbon nanotubes

, 2010
We have investigated the polarization dependence of the generation and detection of radial breathing mode (RBM) coherent phonons (CP) in highly-aligned single-walled carbon nanotubes.
C. J. Stanton, C. L. Pint, C. Sun, E. H. Hároz, G. D. Sanders, J. Kono, J.-H. Kim, K.-J. Yee, L. G. Booshehri, L. Ren, R. H. Hauge, R. Saito, R. Saito, S. L. Chuang, W. H. Press, Y.-S. Lim   +15 more
core   +1 more source

The impact of the Russia–Ukraine war on stock prices, profits and perceptions in the food supply chain

Agribusiness, EarlyView.
Abstract The Russian invasion of Ukraine in February 2022 had profound consequences for the global economy. As both countries are major commodity exporters, the food value chain was also affected. This study investigates the impact of the invasion on stock prices, profitability and sentiments of agribusinesses along the food supply chain by using an ...
Julia Höhler, Ivo Harmens, Alfons Oude Lansink   +2 more
wiley   +1 more source

Examining the effect of credit on monetary policy with Markov regime switching: Evidence from Turkey

Economics and Business Review, 2022
This paper analyses the effect of credit on monetary policy responses for different regimes in Turkey. To do so, the Taylor rule augmented with the credit gap is estimated by using a Markov regime switching model from January 2006 to December 2019.
İlhan Ali
doaj   +1 more source

Compact Spectral Imaging: A Review of Miniaturized and Integrated Systems

Laser &Photonics Reviews, EarlyView.
This review explores the rapid shift toward compact spectral imaging systems by examining four key design paradigms: Do‐It‐Yourself (DIY) platforms, freeform optics, filter‐on‐chip integration, and multifunctional metasurfaces. The discussion highlights critical applications in medicine, agriculture, and environmental monitoring, providing comparative ...
Sani Mukhtar, Amir Arbabi, Jaime Viegas
wiley   +1 more source

Quantum affine algebras and universal R-matrix with spectral parameter, II

, 1993
This paper is an extended version of our previous short letter \cite{ZG2} and is attempted to give a detailed account for the results presented in that paper. Let $U_q({\cal G}^{(1)})$ be the quantized nontwisted affine Lie algebra and $U_q({\cal G})$ be
Gould, Mark D., Zhang, Yao-Zhong
core   +2 more sources

Fabric on fabric: A conductive fabric‐based wearable coil using cutting plotter for MRI at 3T

Magnetic Resonance in Medicine, EarlyView.
Abstract Purpose Wearable coils fabricated using conductive threads have high resistance that limits SNR. The purpose of this work is to demonstrate the utility of conductive fabric as a coil conductor that can be fabricated using a cutting plotter.
Thejas Vishnu Ramesh, Sergio Martin‐Moreno, Folk W. Narongrit, Christopher J. S. Chang, Vitaliy L. Rayz, Joseph V. Rispoli   +5 more
wiley   +1 more source

The Bethe ansatz approach for factorizable centrally extended S-matrices

, 2007
We consider the Bethe ansatz solution of integrable models interacting through factorized $S$-matrices based on the central extention of the $\bf{su}(2|2)$ symmetry.
Andrei, Arutynov, Arutynov, Arutynov, Arutynov, Arutynov, Arutynov, Beisert, Beisert, Beisert, Beisert, Beisert, Beisert, Beisert, Beisert, Beisert, Belitsky, Bena, Berkovits, C.S. Melo, Chen, Dorey, Dorey, Freyhult, Frolov, Gaudin, Gaudin, Gromov, Hernandez, Hofman, Iohara, Janik, Kazakov, Kazakov, Klose, Klose, Korepin, Kulish, M.J. Martins, Mandal, Martins, McLoughlin, Minahan, Olmedilla, Plefka, Ramos, Rej, Rej, Sakai, Shastry, Sklyanin, Staudacher, Sutherland, Sutherland, Swanson, Takhtajan, Tseylin, Wadati, Yang, Zamolodchikov, Zhang   +60 more
core   +1 more source