Academic Articles & Research Papers

Les nationalismes « régionaux » en Europe, facteur de fragmentation spatiale ?

Within the European Union identity or separatist trends are observed in the frame of Nation-states members, for instance in Catalonia, Flanders, Scotland, Northern Italy, Corsica or the Basque country. By claiming national aspirations that ...

Specificity and current trends in the digital advertising development

The digital advertising development features and prospects in the world and in the Russian Federation in particular have been considered. An approach to defining the advertising concept essence in the digital field has been presented. A sum...

Coworking Spaces: Windows to the Future of Work? Changes in the Organizational Model of Work and the Attitudes of the Younger Generation

This paper analyzes how the organization of work has changed since the 1990s including the emergence of digital forms of employment. Following the evolution of work over the course of the 20th century and the start of the 21st, this paper i...

The Algerian city is a space for protest movements: A study in the sociology of protest

This study aims to provide a sociological view of the protest movements known to Algeria. And how the city streets turned in to a space for protest movements. In the first element, we discussed the urban policies and planning tools adopted ...

Course Design using an Authentic Studio Model / Restructuration de cours au moyen d’un authentique modèle de studio de design

Educational Technology and Design 879 is a graduate course that introduces students to the basics of video design and production. In an attempt to improve the learning experience for students a redesign of the course was implemented for the...

Momentum-space Langevin dynamics of holographic Wilsonian RG flow: self-interacting massive scalar field with marginal deformation

Abstract We explore the mathematical relationship between the holographic Wilsonian renormalization group (HWRG) and stochastic quantization(SQ) motivated by the similarity of the monotonicity in RG flow with Langevin dynamics of non-equili...

Where Galaxies Go to Die: The Environments of Massive Quiescent Galaxies at 3 < z < 5

At low redshift, massive quiescent galaxies (MQGs) are most frequently found in massive, rich galaxy clusters, but at high redshift the trend is less clear. Here, we present spectroscopic evidence of the effects of environment on the format...

Intergalactic Wandering Stars in the Local Universe: Theoretical Predictions for Their Distance and Luminosity Distribution

Intergalactic wandering stars (IWSs) within 10 Mpc remain a poorly explored area of astronomy. Such stars, if they exist, are supposed to be wandering objects as they are not bound by the gravitational potential of any galaxy. We set out to...

For All Humankind: Peaceful, Ethical, Cooperative, and Curiosity‐Driven Space Science and Space Weather Research

Abstract Are we moving into a new reality where the next human stepping onto a different world will utter “That's one small step for me, a giant leap for my country”? Is further tightening Heliophysics and space weather research to military...

Anti-de Sitter → de Sitter transition driven by Casimir forces and mitigating tensions in cosmological parameters

Over the last few years, low- and high-redshift observations set off tensions in the measurement of the present-day expansion rate H0 and in the determination of the amplitude of the matter clustering in the late Universe (parameterized by ...

Scalar leptoquark effects on $$B \rightarrow \mu \bar{\nu }$$ B→μν¯ decay

Abstract Purely leptonic B meson decays provide unique probes for physics Beyond the Standard Model. We study the impact of a scalar leptoquark, $$S_1$$ S1 , on $$B \rightarrow \mu \bar{\nu }$$ B→μν¯ decay. We find that, for $$m_{S_1}\sim 1...

An Investigation of Disk Thickness in M51 from Hα, Paα, and Mid-infrared Power Spectra

Power spectra (PS) of high-resolution images of M51 (NGC 5194) taken with the Hubble Space Telescope and the James Webb Space Telescope (JWST) have been examined for evidence of disk thickness in the form of a change in slope between large ...

On the Formation of Retrograde S-type Planets in Binaries with a Polar Circumbinary Disk

Retrograde S-type planets have been observed in several binary systems, yet their formation pathway remains poorly understood. With high-resolution hydrodynamic simulations, we demonstrate that a polar circumbinary disk around an eccentric,...

Comments on astrophysics and space physics

Radiative Processes in Astrophysics

Chapter 1 Fundamentals of Radiative Transfer 1.1 The Electromagnetic Spectrum Elementary Properties of Radiation 1.2 Radiative Flux Macroscopic Description of the Propagation of Radiation Flux from an Isotropic Source-The Inverse Square Law...

The Physics and Astrophysics of Neutron Stars

Advances in Astrophysics

Astrophysics is the branch of astronomy that employs the principles of physics and chemistry to ascertain the nature of the heavenly bodies, rather than their positions or motions in space. Among the objects studied are the Sun, other s...

Where Do Hot Jupiters Come from? Revisiting Tidal Disruption and Ejection in High-eccentricity Migration

The origin of hot Jupiters remains a key open question. In the high-eccentricity migration scenario, traditional coreless models predict a strict tidal exclusion zone within ∼2.7 tidal radii r _t , in which giant planets are either fully di...

Astronomy and Astrophysics

A parameter study is undertaken for steady symmetrical planar field-aligned MHD bow shock flows around a perfectly conducting cylinder.For sets of values of the inflow plasma β and Alfvénic Mach number (M A ) which allow for switch-on shock...

Transport Processes in Space Physics and Astrophysics