Results 41 to 50 of about 808,333 (314)

Geometrician View of “Violation of Norms” in the Linguistic Consciousness

open access: yesRussian journal of linguistics: Vestnik RUDN, 2016
This article shows that there are two Geometry Drawing ideas about the "violation of NORMS" in the linguistic consciousness based on the analysis of the figurative meanings of “ выйти ” and “ перейти ”, prefixes “ пере -” and their Chinese ...
Peoples’ Russia Tao Tszin
doaj  

The Spectre of Nuclear Weapons Use in Ukraine: The Nuances of Nuclear War Risk

open access: yesGüvenlik Stratejileri Dergisi
The essence of Russian security policy is composed of the combined use of conventional and unconventional threats in both war and peacetime. Russia aims to dominate the process of escalation especially by frequently threatening nuclear war in Ukraine. It
Barış Çağlar
doaj   +1 more source

Local Polarization Unit Engineering Enables Ultrahigh Energy Density in NBT‐Based High‐Entropy Ceramic Capacitors

open access: yesAdvanced Science, EarlyView.
Herein, we demonstrate a breakthrough in dielectric energy storage by engineering local polarization units in high‐entropy multilayer ceramic capacitors (MLCCs). The optimized MLCCs achieve an ultrahigh recoverable energy density of 18.2 J cm−3 with 91% efficiency, coupled with exceptional thermal stability and fatigue resistance.
Shiyu Zhou   +11 more
wiley   +1 more source

Social Media as an Agent of Influence: Twitter Bots in Russia - Ukraine War

open access: yesGüvenlik Stratejileri Dergisi
The world has been witnessing a war in Ukraine since Russia started its attacks on 24 February 2022. At this point, Russia has not only deployed its troops but also put its Twitter bots to work.
Muhammed Hayati Taban, İsmail Gür
doaj   +1 more source

The Causes of the Russian-Ottoman War (1877-1878) [PDF]

open access: yesHistorijski pogledi
The Eastern Question had numerous regional aspects. Conflicts and crises on the southeastern periphery of the Ottoman Empire, which was already facing numerous internal problems and external pressures, were not particularly novel during the 19th century.
Safet Bandžović
doaj   +1 more source

THE BALKANS – BETWEEN EUROPE AND RUSSIA [PDF]

open access: yesRomanian Journal of Historical Studies, 2021
The article makes an analysis on evolutions in the Balkans, the impact of the crisis in Ukraine and Russia’s actions for the security, stability and development of the Balkan region; escalating tensions and competition among Russia and West to gain ...
Paraschiva Bădescu
doaj  

Flexoelectricity in Photoconversion: Fundamentals, Materials, and Outlooks

open access: yesAdvanced Science, EarlyView.
Mechanical bending of a flexible cantilever induces a strain gradient in the photoactive material. The resulting flexoelectric field couples with photovoltaic and photoconductive effects, modulating charge generation, separation, and collection. A comparative analysis of oxide perovskites, halide perovskites, and two‐dimensional materials is presented,
Xiang Huang, Feng Li, Rongkun Zheng
wiley   +1 more source

Current scientific approaches to the establishment and development of international trade and economic relations

open access: yesRUDN Journal of Economics
The evolution of international trade and trade policy has come a long way from mercantilism, A. Smith’s theory of absolute advantage, D. Ricardo’s comparative advantage.
Galina A. Khmeleva, Maria S. Guseva
doaj   +1 more source

Sytuacja Rosji w opiniach geopolityków rosyjskich [PDF]

open access: yesPrzegląd Geopolityczny, 2023
The purpose of the study is to try to formulate an answer to the question of how the war waged in Ukraine and the conflict with the West are assessed by influential Russian geopoliticians.
Roman Szul
doaj  

Ultrafast Dynamics of Spin Current and Electron Temperature in Spintronic Terahertz Emitters

open access: yesAdvanced Science, EarlyView.
This work quantifies optical‐pump‐induced THz transmission variations to reveal electron and lattice temperature dynamics and presents time‐resolved THz spectral maps for sub‐picosecond analysis. A 63 ± 8 fs time lag between THz emission and laser excitation is identified, serving as an intrinsic parameter limiting the upper frequency of spintronic THz
Yifan Wang   +10 more
wiley   +1 more source

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