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1

Kibande, Wellingtone, Joseph Akeyo Omolo, and Dismas Wamalwa Simiyu. "Gravitation in Flat Euclidean Spacetime Frame: Unified Electrogravity and Magnetogravity Forces." European Journal of Applied Physics 6, no. 4 (2024): 1–7. http://dx.doi.org/10.24018/ejphysics.2024.6.4.334.

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An effective description of physics requires an appropriate geometrical frame. Three-dimensional Euclidean space provides the geometrical frame for non-relativistic physics. A derivation of an imaginary temporal axis −icˆq the speed, ˆq the unit wave-vector of light, extends the standard Euclidean space into a well-defined four-dimensional Euclidean spacetime frame, which provides the natural mathematical framework for relativistic physics. The basic elements of the Euclidean spacetime frame are fully specified four-component complex vectors satisfying standard vector operations and vector ide
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2

Jiménez-Rosales, A., J. Dexter, S. M. Ressler, et al. "Relative depolarization of the black hole photon ring in GRMHD models of Sgr A* and M87*." Monthly Notices of the Royal Astronomical Society 503, no. 3 (2021): 4563–75. http://dx.doi.org/10.1093/mnras/stab784.

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ABSTRACT Using general relativistic magnetohydrodynamic simulations of accreting black holes, we show that a suitable subtraction of the linear polarization per pixel from total intensity images can enhance the photon ring feature. We find that the photon ring is typically a factor of ≃2 less polarized than the rest of the image. This is due to a combination of plasma and general relativistic effects, as well as magnetic turbulence. When there are no other persistently depolarized image features, adding the subtracted residuals over time results in a sharp image of the photon ring. We show tha
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3

Lavenda, B. H. "Is Relativistic Quantum Mechanics Compatible with Special Relativity?" Zeitschrift für Naturforschung A 56, no. 5 (2001): 347–65. http://dx.doi.org/10.1515/zna-2001-0503.

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Abstract The transformation from a time-dependent random walk to quantum mechanics converts a modi­fied Bessel function into an ordinary one together with a phase factor e,ir/2 for each time the electron flips both direction and handedness. Causality requires the argument to be greater than the order of the Bessel function. Assuming equal probabilities for jumps ± 1 , the normalized modified Bessel function of an imaginary argument is the solution of the finite difference differential Schrödinger equation whereas the same function of a real argument satisfies the diffusion equation. In the non
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4

Клименко, Владимир, and Vladimir Klimenko. "Sky-distribution of intensity of synchrotron radio emission of relativistic electrons trapped in Earth’s magnetic field." Solar-Terrestrial Physics 3, no. 4 (2017): 32–43. http://dx.doi.org/10.12737/stp-34201704.

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This paper presents the calculations of synchrotron radio emission intensity from Van Allen belts with Gaussian space distribution of electron density across L-shells of a dipole magnetic field, and with Maxwell’s relativistic electron energy distribution. The results of these calculations come to a good agreement with measurements of the synchrotron emission intensity of the artificial radiation belt’s electrons during the Starfish nuclear test. We have obtained two-dimensional distributions of radio brightness in azimuth — zenith angle coordinates for an observer on Earth’s surface. The west
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5

Chang, Yifan, Chang Wang, Yubo Wang, Zhaonan Long, Zirui Zeng та Youwei Tian. "Collimation and monochromaticity of γ-rays generated by high-energy electron colliding with tightly focused circularly polarized laser with varied intensities". Laser Physics Letters 19, № 6 (2022): 065301. http://dx.doi.org/10.1088/1612-202x/ac6614.

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Abstract The collision of high-energy electron and laser pulses produces nonlinear inverse Thomson scattering, which can generate γ-rays. We study the effect of laser intensity on the energy angular distribution and spectrum of γ-ray radiation in tightly focused pulses. The γ-rays at non-relativistic intensity have good collimation and monochromaticity, and the radiation energy increases with the laser intensity. The ‘jumping point’ phenomenon of radiation energy variation under relativistic intensity and the ‘black hole’ of energy angular distribution were discovered. As the laser intensity i
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6

Liesfeld, Ben, Jens Bernhardt, Kay-Uwe Amthor, Heinrich Schwoerer, and Roland Sauerbrey. "Single-shot autocorrelation at relativistic intensity." Applied Physics Letters 86, no. 16 (2005): 161107. http://dx.doi.org/10.1063/1.1905779.

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7

Walker, B. C., E. C. Jones, Z. Andreula, M. R. Gale, M. Pham, and J. Wisely. "The Role of Polarization for Bound States in Strong Fields." Journal of Physics: Conference Series 2894, no. 1 (2024): 012007. http://dx.doi.org/10.1088/1742-6596/2894/1/012007.

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Abstract As atomic matter interacts with ultrastrong fields, the bound electrons are polarized and have ionization energies changed by Stark-shifting. The unprecedented range of laser intensities from 1015 W cm−2 to 1024 W cm−2 can take the interaction from the neutral atom to a bare nucleus. We have used an outer, single active electron approximation to calculate the polarization and Stark-shifted binding energy for ultraintense lasers interacting with highly charged ions at intensities from 1014 W cm−2 to 1022 W cm−2. The polarization of the bound state can result in a dipole moment and Star
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8

Friou, A., E. Lefebvre, and L. Gremillet. "Channeling dynamics of relativistic-intensity laser pulses." Physics of Plasmas 19, no. 2 (2012): 022704. http://dx.doi.org/10.1063/1.3680613.

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9

Lee, P. H. Y. "On relativistic self focusing." Laser and Particle Beams 5, no. 1 (1987): 15–25. http://dx.doi.org/10.1017/s0263034600002457.

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Ponderomotive force initiated laser self focusing can be enhanced by relativistic electron motion in a laser plasma. We derive the nonlinear refractive index due to relativistic effects and find that relativistic self focusing becomes important for a 0·25 μm laser when the laser intensity exceeds 5 × 1018 W/cm2.
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10

Soldateschi, J., N. Bucciantini, and L. Del Zanna. "Axisymmetric equilibrium models for magnetised neutron stars in scalar-tensor theories." Astronomy & Astrophysics 640 (August 2020): A44. http://dx.doi.org/10.1051/0004-6361/202037918.

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Among the possible extensions of general relativity that have been put forward to address some long-standing issues in our understanding of the Universe, scalar-tensor theories have received a lot of attention for their simplicity. Interestingly, some of these predict a potentially observable non-linear phenomenon, known as spontaneous scalarisation, in the presence of highly compact matter distributions, as in the case of neutron stars. Neutron stars are ideal laboratories for investigating the properties of matter under extreme conditions and, in particular, they are known to harbour the str
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11

Bucciantini, Niccolò, and Jacopo Soldateschi. "Iron line from neutron star accretion discs in scalar tensor theories." Monthly Notices of the Royal Astronomical Society: Letters 495, no. 1 (2020): L56—L60. http://dx.doi.org/10.1093/mnrasl/slaa059.

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ABSTRACT The Fe Kα fluorescent line at 6.4 keV is a powerful probe of the space–time metric in the vicinity of accreting compact objects. We investigated here how some alternative theories of gravity, namely scalar tensor theories, that invoke the presence of a non-minimally coupled scalar field and predict the existence of strongly scalarized neutron stars (NSs), change the expected line shape with respect to General Relativity. By taking into account both deviations from the general relativistic orbital dynamics of the accreting disc, where the Fe line originates, and the changes in the ligh
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12

OSMAN, FREDERICK, REYNALDO CASTILLO, and HEINRICH HORA. "Relativistic and ponderomotive self-focusing at laser–plasma interaction." Journal of Plasma Physics 61, no. 2 (1999): 263–73. http://dx.doi.org/10.1017/s0022377898007417.

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The nonlinear plasma dielectric function due to relativistic electron motion is derived. From this, one can obtain the nonlinear refractive index of the plasma and estimate the importance of relativistic self-focusing in comparison with ponderomotive non-relativistic self-focusing at very high laser intensities. When the laser intensity is very high, ponderomotive self-focusing will be dominant. However, at some point, when the oscillating velocity of the plasma electrons becomes very large, relativistic effects will also play a role in self-focusing.
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13

Mangles, S. P. D., K. Krushelnick, Z. Najmudin, et al. "The generation of mono-energetic electron beams from ultrashort pulse laser–plasma interactions." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 364, no. 1840 (2006): 663–77. http://dx.doi.org/10.1098/rsta.2005.1730.

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The physics of the interaction of high-intensity laser pulses with underdense plasma depends not only on the interaction intensity but also on the laser pulse length. We show experimentally that as intensities are increased beyond 10 20 W cm −2 the peak electron acceleration increases beyond that which can be produced from single stage plasma wave acceleration and it is likely that direct laser acceleration mechanisms begin to play an important role. If, alternatively, the pulse length is reduced such that it approaches the plasma period of a relativistic electron plasma wave, high-power inter
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14

Gaur, B., P. Rawat, and G. Purohit. "Effect of self-focused cosh Gaussian laser beam on the excitation of electron plasma wave and particle acceleration." Laser and Particle Beams 34, no. 4 (2016): 621–30. http://dx.doi.org/10.1017/s0263034616000525.

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AbstractThis work presents an investigation of the self-focusing of a high-power laser beam having cosh Gaussian intensity profile in a collissionless plasma under weak relativistic-ponderomotove (RP) and only relativistic regimes and its effect on the excitation of electron plasma wave (EPW), and particle acceleration process. Nonlinear differential equations have been set up for the beam width and intensity of cosh Gaussian laser beam (CGLB) and EPW using the Wentzel-Kramers-Brillouin and paraxial-ray approximations as well as fluid equations. The numerical results are presented for differen
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15

Jolicoeur, Sheean, Roy Maartens, Eline M. De Weerd, Obinna Umeh, Chris Clarkson, and Stefano Camera. "Detecting the relativistic bispectrum in 21cm intensity maps." Journal of Cosmology and Astroparticle Physics 2021, no. 06 (2021): 039. http://dx.doi.org/10.1088/1475-7516/2021/06/039.

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16

Willingale, L., P. M. Nilson, C. Zulick, et al. "Relativistic intensity laser interactions with low-density plasmas." Journal of Physics: Conference Series 688 (March 2016): 012126. http://dx.doi.org/10.1088/1742-6596/688/1/012126.

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17

Marques, J. P., F. Parente та P. Indelicato. "Relativistic MCDF calculation of Kβ/Kα intensity ratios". Journal of Physics B: Atomic, Molecular and Optical Physics 34, № 17 (2001): 3487–91. http://dx.doi.org/10.1088/0953-4075/34/17/308.

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18

Leshchenko, V. E., V. A. Vasiliev, N. L. Kvashnin, and E. V. Pestryakov. "Coherent combining of relativistic-intensity femtosecond laser pulses." Applied Physics B 118, no. 4 (2015): 511–16. http://dx.doi.org/10.1007/s00340-015-6047-7.

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19

Douma, E., C. J. Rodger, L. W. Blum, T. P. O'Brien, M. A. Clilverd, and J. B. Blake. "Characteristics of Relativistic Microburst Intensity From SAMPEX Observations." Journal of Geophysical Research: Space Physics 124, no. 7 (2019): 5627–40. http://dx.doi.org/10.1029/2019ja026757.

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20

Asthana, Meenu, M. S. Sodha, and K. P. Maheshwari. "Relativistic self-focusing of laser beams in time-harmonic plane waves: arbitrary intensity." Journal of Plasma Physics 51, no. 1 (1994): 155–62. http://dx.doi.org/10.1017/s002237780001744x.

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This paper presents a paraxial theory of relativistic self-focusing of a Gaussian laser beam in plasma for a time-harmonic plane wave at arbitrary beam intensity. Since the relativistic mechanism is instantaneous, the theory is also applicable to self-focusing of laser pulses. The analysis leads to two values for the critical beam power for self-focusing, Pcr1 and Pcr2. When P < Pcr1 < Pcr2, the beam diverges. When Pcr1 <P <pcr2, it first converges, then diverges, and so on. When P > Pcr2 it first diverges, then converges, and so on.
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21

Winata, Suryadi, and Khomsiyah Khomsiyah. "DAMPAK KODE ETIK PADA PENGARUH FILOSOFI ETIS DAN INTENSITAS ETIS TERHDADAP PENGAMBILAN KEPUTUSAN ETIS AKUNTAN PUBLIK." EKUITAS (Jurnal Ekonomi dan Keuangan) 1, no. 2 (2018): 259–78. http://dx.doi.org/10.24034/j25485024.y2017.v1.i2.2634.

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Tujuan penelitian ini adalah untuk mengukur peran kode etik dalam memperkuat pengaruh filosofi etis yaitu idealisme, relativisme, dan intensitas etis yaitu magnitude of consequence, social consensus dan temporal immediacy pada pengambilan keputusan etis. Sampel penelitian ini menggunakan 138 akuntan publik. Pengujian hipotesis menggunakan analisis regresi moderasi. Hasilnya memperlihatkan bahwa kode etik menurunkan pengaruh idealisme terhadap kesadaran etis akuntan publik. Kode etik dan idealisme merupakan faktor-faktor yang saling melengkapi, sehingga implikasi kode etik merupakan alat pentin
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22

Клименко, Владимир, and Vladimir Klimenko. "Sky-distribution of intensity of synchrotron radio emission of relativistic electrons trapped in Earth’s magnetic field." Solnechno-Zemnaya Fizika 3, no. 4 (2017): 34–46. http://dx.doi.org/10.12737/szf-34201704.

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This paper presents the calculations of synchrotron radio emission intensity from Van Allen belts with Gaussian space distribution of electron density across L-shells of a dipole magnetic field, and with Maxwell’s relativistic electron energy distribution. The results of these calculations come to a good agreement with measurements of the synchrotron emission intensity of the artificial radiation belt’s electrons during the Starfish nuclear test. We have obtained two-dimensional distributions of radio brightness in azimuth — zenith angle coordinates for an observer on Earth’s surface. The west
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23

I, Made Dauh Wijana, Paulus Tahu Gregorius, and Orbaningsih Dwi. "Whistleblowing Intention And Fraud." INTERNATIONAL JOURNAL OF MULTIDISCIPLINARY RESEARCH AND ANALYSIS 05, no. 08 (2022): 1953–61. https://doi.org/10.5281/zenodo.6962342.

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This study seeks to find the key factors that influence whistleblowing intentions. The research was conducted by distributing questionnaires to employees of the Badung Regional Government Education Center who are engaged in finance. The sample selection method used is purposive sampling. Reward, perceived seriousness of fraud, relativism ethical orientation, moral intensity and professional identity have a very important role in influencing a person's whistleblowing intention. Giving rewards, perceived seriousness of fraud, relativism ethical orientation, moral intensity and high professio
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24

Shoucri, Magdi. "Comments on ‘Electromagnetic Surface Waves in a Relativistic Magnetized Plasma Propagating in a Cylindrical Column’ Applied Physics Research 16, 6 (2024)." Applied Physics Research 17, no. 1 (2025): 35. https://doi.org/10.5539/apr.v17n1p35.

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The dispersion relations of electromagnetic surface waves in a magnetized relativistic beam propagating in a cylindrical column surrounded by vacuum have been recently derived by Lee, 2024, using relativistic fluid equations. We would like to draw attention to an important body of work to study the problem of electromagnetic surface waves propagating at the surface of a relativistic beam, both in a cylindrical column and in cartesian geometry, and both in the absence and in the presence of an external magnetic field of arbitrary intensity.
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25

Liu, Tong, Yulong Han, Qinghe Wang, and Yong Yuan. "Assessing Ground Motion Intensity Measures and Structural Damage Measures in Underground Structures: A Finite Element Analysis of the Daikai Subway Station." Applied Sciences 14, no. 13 (2024): 5491. http://dx.doi.org/10.3390/app14135491.

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Research on the characterization of ground motion intensity and damage of underground structures is limited, while reasonable selection of ground motion intensity measures and structural damage measures is a crucial prerequisite for structural seismic performance evaluation. In this study, a two-dimensional finite element model of soil and structures was established based on the Daikai subway station in Japan. Through incremental dynamic analysis, 32 ground motion intensity measures and seven structural damage measures were comprehensively evaluated from seven properties, including efficiency,
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26

ASTHANA, MEENU V., DINESH VARSHNEY, and M. S. SODHA. "Relativistic self-focusing of transmitted laser radiation in plasmas." Laser and Particle Beams 18, no. 1 (2000): 101–7. http://dx.doi.org/10.1017/s0263034600181121.

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This paper presents an analysis of relativistic self-focusing of a Gaussian laser beam incident normally on a plane interface of a linear medium and a nonlinear, nonabsorbing plasma with an intensity dependent dielectric constant. Considering the nonlinearity to arise from the relativistic variation of mass and the Lorentz force on electrons. Following Wentzel–Kramers–Brillouin (WKB) and paraxial ray approximation the phenomenon of relativistic self-focusing of the transmitted laser radiation has been analyzed for the arbitrary magnitude of nonlinearity. Change in the intensity distribution al
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27

Singh, Jatinder J., Scott J. Vitell, Jamal Al-Khatib, and Irvine Clark. "The Role of Moral Intensity and Personal Moral Philosophies in the Ethical Decision Making of Marketers: A Cross-Cultural Comparison of China and the United States." Journal of International Marketing 15, no. 2 (2007): 86–112. http://dx.doi.org/10.1509/jimk.15.2.86.

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This study uses cross-cultural samples from the United States and China to replicate previous empirical findings regarding the relationship among moral philosophies, moral intensity, and ethical decision making. The authors use a two-step structural equations modeling approach to analyze the measurement and structural models. The findings partially replicate those from previous studies and provide evidence that the measurement model is somewhat invariant across the two groups studied but the structural model is not. In addition, there is evidence that the relationship between personal moral ph
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28

Asthana, M., K. P. Maheshwari, and M. S. Sodha. "Nonlinear relativistic self-focusing of laser radiation in plasmas: Arbitrary intensity." Laser and Particle Beams 12, no. 4 (1994): 623–32. http://dx.doi.org/10.1017/s0263034600008508.

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A paraxial theory of relativistic self-focusing of a Gaussian laser beam in plasmas, when the nonlinear part of the effective dielectric constant is arbitrarily large, is presented. The plasma is taken to be homogeneous without any density fluctuations being necessary. The approach of Akhmanov et al. based on the WKB and paraxial ray approximations has been followed. It is seen that the saturating nature of nonlinearity leads to two values of critical power of the beam (Pcrl and Pcr2) for self-focusing. When the power of the beam P lies between the two critical values (i.e., Pcr1 < P < P
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29

Vyas, Ashish, Ram Kishor Singh, and R. P. Sharma. "Study of coexisting stimulated Raman and Brillouin scattering at relativistic laser power." Laser and Particle Beams 32, no. 4 (2014): 657–63. http://dx.doi.org/10.1017/s0263034614000688.

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AbstractThis paper presents a model to study the stimulated Raman scattering (SRS) and stimulated Brillouin scattering (SBS) simultaneously at relativistic laser power. At high intensity, the relativistic mass correction for the plasma electrons becomes significant and the plasma refractive index gets modified which leads to the relativistic self-focusing of the pump beam. This filamentation process affects the scattering processes (SRS and SBS) and at the same time the pump filamentation process also gets modified in the presence of the coexisting SRS and SBS due to the pump depletion. We hav
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30

Baumann, C., and A. Pukhov. "Electron dynamics in twisted light modes of relativistic intensity." Physics of Plasmas 25, no. 8 (2018): 083114. http://dx.doi.org/10.1063/1.5044617.

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31

Xu, Hui, Zheng-Ming Sheng, Jie Zhang, and M. Y. Yu. "Intensity-dependent resonance absorption in relativistic laser-plasma interaction." Physics of Plasmas 13, no. 12 (2006): 123301. http://dx.doi.org/10.1063/1.2397580.

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32

Umstadter, D. P., C. Barty, M. Perry, and G. A. Mourou. "Tabletop, Ultrahigh-Intensity Lasers: Dawn of Nonlinear Relativistic Optics." Optics and Photonics News 9, no. 7 (1998): 40. http://dx.doi.org/10.1364/opn.9.7.000040.

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33

Hartemann, F. V. "High-intensity scattering processes of relativistic electrons in vacuum." Physics of Plasmas 5, no. 5 (1998): 2037–47. http://dx.doi.org/10.1063/1.872875.

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34

Walsh, J., K. Woods, and S. Yeager. "Intensity of Smith-Purcell radiation in the relativistic regime." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 341, no. 1-3 (1994): 277–79. http://dx.doi.org/10.1016/0168-9002(94)90364-6.

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35

Chen, J., K. H. Li, and J. H. Wen. "Relativistic high-order harmonics of a hydrogenlike atom in an ultrastrong laser field." Canadian Journal of Physics 77, no. 7 (1999): 521–29. http://dx.doi.org/10.1139/p99-025.

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The relativistic high-order harmonics of a hydrogenlike atom in an ultrastrong laser field has been simulated by the classical Monte-Carlo method in this paper. The results concerning the influence of the laser parameters (frequency, pulse-shape, intensity, etc.) on the relativistic high-order harmonics have been obtained and the conversion efficiency has also been calculated. Some conclusions are drawn and discussed.PACS Nos.: 42.65Ky and 32.80Rm
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36

Johari, Razana Juhaida, Zuraidah Mohd Sanusi, and Arumega Zarefar. "Auditor’s Ethical Judgments: The Influence of Moral Intensity, Ethical Orientation and Client Importance." International Journal of Financial Research 10, no. 3 (2019): 77. http://dx.doi.org/10.5430/ijfr.v10n3p77.

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This study examined auditors’ ethical judgments using two theoretical perspectives; (1) Moral intensity constructs of Jones’ (1991) Model and (2) Forsyth’s (1980) framework of individual ethical orientation. The importance of the moral issues and how they affected the auditors’ ethical judgments together with the influence of individual’s ethical orientation and the client importance is discussed. A research instrument consisted of two scenarios with different level of moral intensity issues and utilized a 12-item of moral intensity measurement and a Forsyth’s (1980) scale to measure ethical o
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37

Hajra, Rajkumar, Bruce T. Tsurutani, Quanming Lu, et al. "Ultra-relativistic Electron Acceleration during High-intensity Long-duration Continuous Auroral Electrojet Activity Events." Astrophysical Journal 965, no. 2 (2024): 146. http://dx.doi.org/10.3847/1538-4357/ad2dfe.

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Abstract Magnetospheric relativistic electrons are accelerated during substorms and strong convection events that occur during high-intensity long-duration continuous auroral electrojet activity (HILDCAA) events, associated with solar wind high-speed streams (coming from coronal holes). From an analysis of ∼2–20 MeV electrons at L ∼ 2–7 measured by the Van Allen Probe satellite, it is shown that ∼3.4–4.1 days long HILDCAA events are characterized by ∼7.2 MeV electron acceleration in the L ∼ 4.0–6.0 region, which occurs ∼2.9–3.4 days after the onset of HILDCAA. The dominant acceleration process
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38

Afanasiev, G. N., M. V. Lyubchenko, and Yu P. Stepanovsky. "Fine structure of the Vavilov–Cherenkov radiation." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 462, no. 2066 (2005): 689–99. http://dx.doi.org/10.1098/rspa.2005.1599.

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We found relativistic quantum corrections to the one-photon Cherenkov emission. It is proved that, in the absence of dispersion, the Vavilov–Cherenkov radiation fills the whole Cherenkov cone (in the Tamm–Frank theory the Vavilov–Cherenkov radiation for the fixed refractive index is confined to the surface of the Cherenkov cone). The radiation intensity reaches the maximum inside the Cherenkov cone. It turns out that photons with different energies fly at different angles in the interval from zero up to the Cherenkov angle corresponding to the initial charge velocity. The visible light region,
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39

Struminsky, A. B., I. Yu Grigorieva, Yu I. Logachev, and A. M. Sadovskii. "Solar relativistic electrons and protons on October 28, 2021 (GLE73)." Известия Российской академии наук. Серия физическая 87, no. 7 (2023): 1023–27. http://dx.doi.org/10.31857/s0367676523701818.

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The proton event of October 28, 2021, which was accompanied by the first in the current 25th cycle and the 73rd in the history of observations, a ground-based enhancement in the intensity of cosmic rays (GLE73), is considered. The development of the parent flare lasted more than 10 min against the background of the highest energy release simultaneously creating the conditions both for acceleration of the coronal mass ejection (CME) and acceleration of charged particles to relativistic energies. The similarity of time intensity profiles of relativistic electrons and protons in the Earth’s orbit
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40

Yeeram, T. "Enhancements of relativistic electron flux at geostationary orbit during high-intensity, long-duration, continuous AE activity (HILDCAA) from 2015 to 2017." Journal of Physics: Conference Series 2431, no. 1 (2023): 012100. http://dx.doi.org/10.1088/1742-6596/2431/1/012100.

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Abstract This work characterizes the enhancements of relativistic electron flux (MeV) in the geostationary orbit (GEO) in High Intensity, Long Duration, Continuous AE Activity (HILDCAA) occurred during declining phase of solar cycle 24. We employed the relativistic electron (0.8 - 2.0 MeV) flux and low-energy electron (40 - 130 keV) flux measured by GOES-13 and POES satellites, respectively. Typically, the relativistic electron flux increases, while the low-energy electron flux decreases in the long recovery phase of moderate storms. The enhancements of E > 0.8 MeV and > 2.0 MeV occurred
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41

Bak, Petr, Dmitriy Bolkhovityanov, Andrey Korepanov, et al. "Instrument for Studying Wake Fields Influence to International Linear Collider High Intensity Bunch." Siberian Journal of Physics 4, no. 1 (2009): 30–36. http://dx.doi.org/10.54362/1818-7919-2009-4-1-30-36.

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Instrument for bunch tilt measurements in linear collider is presented. Electron beam probe basic principles are described and method of bunch tilt measurements is discussed. The simulation results of testing beam interaction with tilted relativistic bunch are presented. Main components of the bunch tilt measurement error are determined.
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42

Albert, O., H. Wang, D. Liu, Z. Chang, and G. Mourou. "Generation of relativistic intensity pulses at a kilohertz repetition rate." Optics Letters 25, no. 15 (2000): 1125. http://dx.doi.org/10.1364/ol.25.001125.

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43

Golovinski, P. A., M. A. Dolgopolov, and V. G. Khlebostroev. "Hard x-ray generation in laser field of relativistic intensity." Physica Scripta 51, no. 6 (1995): 759–61. http://dx.doi.org/10.1088/0031-8949/51/6/009.

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44

Rezaei, S., M. R. Jafari Milani, and M. J. Jafari. "High intensity laser beam propagation through a relativistic warm magnetoplasma." Physics of Plasmas 24, no. 4 (2017): 043101. http://dx.doi.org/10.1063/1.4979169.

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45

Umstadter, D., S. ‐Y Chen, G. Ma, et al. "Dense and Relativistic Plasmas Produced by Compact High‐Intensity Lasers." Astrophysical Journal Supplement Series 127, no. 2 (2000): 513–18. http://dx.doi.org/10.1086/313340.

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46

Garuchava, D. P., Z. I. Rostomashvili, and N. L. Tsintsadze. "Filamentation instability of relativistic-intensity electromagnetic waves in a plasma." Soviet Journal of Quantum Electronics 16, no. 9 (1986): 1267–68. http://dx.doi.org/10.1070/qe1986v016n09abeh007486.

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47

Har-Shemesh, Omri, and Antonino Di Piazza. "Peak intensity measurement of relativistic lasers via nonlinear Thomson scattering." Optics Letters 37, no. 8 (2012): 1352. http://dx.doi.org/10.1364/ol.37.001352.

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48

Mioduszewski, A. J., P. A. Hughes, and G. C. Duncan. "The Effects of Light Travel Time on the Appearance of Relativistic Jets." International Astronomical Union Colloquium 164 (1998): 139–40. http://dx.doi.org/10.1017/s0252921100044894.

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AbstractWe present simulated maps showing the appearance in total intensity of flows computed using a relativistic hydrodynamic code (Duncan k. Hughes 1994: ApJ, 436, L119). The radiation transfer calculations allow for full treatment of relativistic effects, such as Doppler boosting and time delay. Depending on viewing angle, and the speed of emitting features, the appearance of a jet can be strongly influenced by either effect; in both cases the map differs dramatically from the morphology exhibited by the hydrodynamic quantities.
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49

Purohit, Gunjan, Priyanka Rawat, Pradeep Kothiyal, and Ramesh Kumar Sharma. "Relativistic longitudinal self-compression of ultra-intense Gaussian laser pulses in magnetized plasma." Laser and Particle Beams 38, no. 3 (2020): 188–96. http://dx.doi.org/10.1017/s0263034620000245.

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AbstractThis article presents a preliminary study of the longitudinal self-compression of ultra-intense Gaussian laser pulse in a magnetized plasma, when relativistic nonlinearity is active. This study has been carried out in 1D geometry under a nonlinear Schrodinger equation and higher-order paraxial (nonparaxial) approximation. The nonlinear differential equations for self-compression and self-focusing have been derived and solved by the analytical and numerical methods. The dielectric function and the eikonal have been expanded up to the fourth power of r (radial distance). The effect of in
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50

LONTANO, M., M. BORGHESI, S. V. BULANOV, et al. "Nondrifting relativistic electromagnetic solitons in plasmas." Laser and Particle Beams 21, no. 4 (2003): 541–44. http://dx.doi.org/10.1017/s0263034603214105.

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Low-frequency, relativistic, subcycle solitary waves are found in two-dimensional and three-dimensional particle-in-cell (PIC) numerical simulations, as a result of the interaction of ultrashort, high-intensity laser pulses with plasmas. Moreover, nondrifting, subcycle relativistic electromagnetic solitons have been obtained as solutions of the hydrodynamic equations for an electron–ion warm plasma, by assuming the quasi-neutrality character of the plasma response. In addition, the formation of long-living macroscopic soliton-like structures has been experimentally observed by means of the pro
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