93 research outputs found
Трансформация института конституционного контроля в политико-правовом пространстве России
Introduction. The article presents the author’s interpretation of the process of constitutional control institutionalization in Russia. The paper highlights the dominant factors and main vectors of the constitutional control transformation in the context of modernizing the political and legal systems of the Russian Federation. The authors pay a particular attention to the specifics of the Constitutional Court of the Russian Federation functioning in the current system of separation of powers and upholding the sovereignty of the Russian state in the context of contradictory modern processes of political globalization.
Methodology and methods. The theoretical and methodological base of the work includes theses of Russian and foreign scientistsconstitutionalists A. Medushevskiy, V.E. Chirkin, L. Fridman, F. Luscher. The theories of political modernization and globalization (A.Yu. Melvil, S. Lantsov, S. Eisenstadt, S. Huntington, I. Wallerstein, Z. Bauman) were used to analyze the functional specificity of constitutional control institute activities in the conditions of forming a global and regional “risk society”, and a new Russian state after the Soviet Union collapse. The empirical base of the study was the following: the Constitution of the Russian Federation; Constitutional and Federal laws of the Russian Federation, other legal documents regulating the activities of state authorities and administration; periodical materials; research results of the leading sociological centers – Russian Public Opinion Research Center (VTsIOM), Levada-Center.
Analysis. The stages of forming the constitutional control institution and its transformation should be considered in the context of modernizing the Russian state, its political and legal systems. At the same time, the inconsistency of the statist model of political modernization in Russia has a significant impact on modern institutional reinforcement and the practice of implementing the principle of separation of powers, including the political and legal status of the Constitutional Court of the Russian Federation. The escalation of internal and external risks and threats to the Russian society and state objectively defines a number of restrictions to the comprehensive disclosure of the constitutional justice political potential.
Discussion. The main discussion dominants in analysing factors and directions of the constitutional control institute transformation in modern Russia are the following: the degree of rootedness of constitutionalism principles and constitutional values in the public consciousness of Russian citizens, and first of all among the ruling elite; the effectiveness of implementing constitutional control in comparison with other types of control – public, civil, parliamentary, etc.; the indicators of performance of the Constitutional Court of the Russian Federation to strengthen Russia as a legal, democratic state while ensuring stable and safe development of the national society.
Results. The article highlights the main stages of the constitutional control institutionalization in the national history. The interrelation of modernization transformations of Russian society and the state with formation and functioning of the Constitutional Court of the Russian Federation is traced. The paper presents the dominant vectors of the constitutional control institute transformation in the Russian political and legal space, taking into account real and potential risks and threats in the personality-society-state system
Ab initio guided minimal model for the "Kitaev" material BaCo(AsO): Importance of direct hopping, third-neighbor exchange and quantum fluctuations
We present a simple three-parameter exchange model to describe the
interactions of the lowest doublet of the honeycomb cobaltate
BaCo(AsO), which has been proposed as a possible candidate for
Kitaev physics. Remarkably, it is the third-neighbor interactions, both
isotropic and anisotropic, that are responsible for the unique ground state of
BaCo(AsO), stabilized by quantum fluctuations. By considering two
{\it ab initio}-based complementary approaches, we analyze the electronic
structure of BaCo(AsO) and extract effective spin models that
justify the minimal model. Both methods show that the dominant direct hopping
makes the bond-dependent Kitaev term negligible moving the material away from
the sought-after spin-liquid regime. Moreover, a significantly large
third-nearest neighbor hopping supports the observed importance of the
third-neighbor interactions in the stabilization of the standout double-zigzag
ground state of BaCo(AsO).Comment: 8 pages, 4 figure
The UV Effect on the Chemiresistive Response of ZnO Nanostructures to Isopropanol and Benzene at PPM Concentrations in Mixture with Dry and Wet Air
Towards the development of low-power miniature gas detectors, there is a high interest in the research of light-activated metal oxide gas sensors capable to operate at room temperature (RT). Herein, we study ZnO nanostructures grown by the electrochemical deposition method over Si/SiO substrates equipped by multiple Pt electrodes to serve as on-chip gas monitors and thoroughly estimate its chemiresistive performance upon exposing to two model VOCs, isopropanol and benzene, in a wide operating temperature range, from RT to 350 °C, and LED-powered UV illumination, 380 nm wavelength; the dry air and humid-enriched, 50 rel. %, air are employed as a background. We show that the UV activation allows one to get a distinctive chemiresistive signal of the ZnO sensor to isopropanol at RT regardless of the interfering presence of HO vapors. On the contrary, the benzene vapors do not react with UV-illuminated ZnO at RT under dry air while the humidity’s appearance gives an opportunity to detect this gas. Still, both VOCs are well detected by the ZnO sensor under heating at a 200–350 °C range independently on additional UV exciting. We employ quantum chemical calculations to explain the differences between these two VOCs’ interactions with ZnO surface by a remarkable distinction of the binding energies characterizing single molecules, which is −0.44 eV in the case of isopropanol and −3.67 eV in the case of benzene. The full covering of a ZnO supercell by HO molecules taken for the effect’s estimation shifts the binding energies to −0.50 eV and −0.72 eV, respectively. This theory insight supports the experimental observation that benzene could not react with ZnO surface at RT under employed LED UV without humidity’s presence, indifference to isopropanol
Invariant variational principle for Hamiltonian mechanics
It is shown that the action for Hamiltonian equations of motion can be
brought into invariant symplectic form. In other words, it can be formulated
directly in terms of the symplectic structure without any need to
choose some 1-form , such that , which is not unique
and does not even generally exist in a global sense.Comment: final version; to appear in J.Phys.A; 17 pages, 2 figure
Vive la radiorésistance!: converging research in radiobiology and biogerontology to enhance human radioresistance for deep space exploration and colonization.
While many efforts have been made to pave the way toward human space colonization, little consideration has been given to the methods of protecting spacefarers against harsh cosmic and local radioactive environments and the high costs associated with protection from the deleterious physiological effects of exposure to high-Linear energy transfer (high-LET) radiation. Herein, we lay the foundations of a roadmap toward enhancing human radioresistance for the purposes of deep space colonization and exploration. We outline future research directions toward the goal of enhancing human radioresistance, including upregulation of endogenous repair and radioprotective mechanisms, possible leeways into gene therapy in order to enhance radioresistance via the translation of exogenous and engineered DNA repair and radioprotective mechanisms, the substitution of organic molecules with fortified isoforms, and methods of slowing metabolic activity while preserving cognitive function. We conclude by presenting the known associations between radioresistance and longevity, and articulating the position that enhancing human radioresistance is likely to extend the healthspan of human spacefarers as well
Real-time Monitoring for the Next Core-Collapse Supernova in JUNO
Core-collapse supernova (CCSN) is one of the most energetic astrophysical
events in the Universe. The early and prompt detection of neutrinos before
(pre-SN) and during the SN burst is a unique opportunity to realize the
multi-messenger observation of the CCSN events. In this work, we describe the
monitoring concept and present the sensitivity of the system to the pre-SN and
SN neutrinos at the Jiangmen Underground Neutrino Observatory (JUNO), which is
a 20 kton liquid scintillator detector under construction in South China. The
real-time monitoring system is designed with both the prompt monitors on the
electronic board and online monitors at the data acquisition stage, in order to
ensure both the alert speed and alert coverage of progenitor stars. By assuming
a false alert rate of 1 per year, this monitoring system can be sensitive to
the pre-SN neutrinos up to the distance of about 1.6 (0.9) kpc and SN neutrinos
up to about 370 (360) kpc for a progenitor mass of 30 for the case
of normal (inverted) mass ordering. The pointing ability of the CCSN is
evaluated by using the accumulated event anisotropy of the inverse beta decay
interactions from pre-SN or SN neutrinos, which, along with the early alert,
can play important roles for the followup multi-messenger observations of the
next Galactic or nearby extragalactic CCSN.Comment: 24 pages, 9 figure
Potential of Core-Collapse Supernova Neutrino Detection at JUNO
JUNO is an underground neutrino observatory under construction in Jiangmen, China. It uses 20kton liquid scintillator as target, which enables it to detect supernova burst neutrinos of a large statistics for the next galactic core-collapse supernova (CCSN) and also pre-supernova neutrinos from the nearby CCSN progenitors. All flavors of supernova burst neutrinos can be detected by JUNO via several interaction channels, including inverse beta decay, elastic scattering on electron and proton, interactions on C12 nuclei, etc. This retains the possibility for JUNO to reconstruct the energy spectra of supernova burst neutrinos of all flavors. The real time monitoring systems based on FPGA and DAQ are under development in JUNO, which allow prompt alert and trigger-less data acquisition of CCSN events. The alert performances of both monitoring systems have been thoroughly studied using simulations. Moreover, once a CCSN is tagged, the system can give fast characterizations, such as directionality and light curve
Detection of the Diffuse Supernova Neutrino Background with JUNO
As an underground multi-purpose neutrino detector with 20 kton liquid scintillator, Jiangmen Underground Neutrino Observatory (JUNO) is competitive with and complementary to the water-Cherenkov detectors on the search for the diffuse supernova neutrino background (DSNB). Typical supernova models predict 2-4 events per year within the optimal observation window in the JUNO detector. The dominant background is from the neutral-current (NC) interaction of atmospheric neutrinos with 12C nuclei, which surpasses the DSNB by more than one order of magnitude. We evaluated the systematic uncertainty of NC background from the spread of a variety of data-driven models and further developed a method to determine NC background within 15\% with {\it{in}} {\it{situ}} measurements after ten years of running. Besides, the NC-like backgrounds can be effectively suppressed by the intrinsic pulse-shape discrimination (PSD) capabilities of liquid scintillators. In this talk, I will present in detail the improvements on NC background uncertainty evaluation, PSD discriminator development, and finally, the potential of DSNB sensitivity in JUNO
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