Negative Barnett effect, negative moment of inertia of (quark-)gluon plasma and thermal evaporation of chromomagnetic condensate

We discuss the negativity of the moment of inertia of (quark-)gluon plasma in a window of ``supervortical'' range of temperatures above the deconfining phase transition, $T \simeq (1\dots 1.5) T_c$ found recently in numerical Monte Carlo simulations by two independent methods. In our work, we confirm numerically that the origin of this effect is rooted in the thermal evaporation of the non-perturbative chromomagnetic condensate. We argue that the negative moment of inertia of gluon plasma indicates the presence of a novel effect, the negative spin-vortical coupling for gluons resulting in a negative gluonic Barnett effect: the spin polarization of gluons exceeds the total angular momentum of rotating plasma thus forcing the orbital angular momentum to take negative values in the supervortical range of temperatures.Comment: 9 pages, 3 figure

Susceptibility to SARS-CoV-2 Virus Variants of Concern in Mouse Models

The aim of the research was to assess the susceptibility of mice of different lines to newly emerging variants of SARS-CoV-2.Materials and methods. The SARS-CoV-2 virus strains belonging to variants of concern (VOC) circulating in the territory of the Russian Federation were used in the study. Experiments involved three inbred mouse lines (BALB/c, CBA and C57Bl/6z) and CD1 outbred mice taken from the nursery of the SSC VB “Vector” of the Rospotrebnadzor. The infectious titer of coronavirus in tissue samples obtained from the laboratory animals was determined on a Vero E6 cell culture. The (Ct) threshold value in RT-PCR was considered an additional parameter for monitoring the viral load in the samples. The severity of lung tissue damage was assessed using histological preparations.Results and discussion. The susceptibility of various mouse lines to the genetic variant Beta of the SARS-CoV-2 virus has been investigated. During intranasal infection of the inbred and outbred mice with strains of VOC at a dose of 2·103 TCID50, the virus replicated in the lungs with maximum concentrations 72 hours after infection. The pathogenicity of genetic variants of the SARS-CoV-2 virus for BALB/c mice has been assessed, a 50 % infectious dose for intranasal infection (ID50) determined. Histological analysis showed COVID-19-specific lung tissue lesions in infected animals. Our study proves that BALB/c mice can be used as a model animal in screening studies when evaluating the effectiveness of therapeutic, vaccine preparations and studying the pathogenesis caused by VOC of the SARS-CoV-2 virus: Alpha (B.1.1.7), Beta (B.1.351), Gamma (P.1), Omicron (B.1.1.529) and the like

Pathogenicity of the SARS-CoV-2 Virus Variants of Concern for the Syrian Golden Hamster

The aim of the work was to study the pathogenicity of newly emerging variants of SARS-CoV-2 on the model of the Syrian golden hamster.Materials and methods. We used the strains of SARS-CoV-2 virus related to the VOC circulating in the territory of the Russian Federation. The experiments were carried out on outbreed Syrian hamsters obtained from the nursery of the SSC VB “Vector”. The infectious titer of coronavirus in tissue samples collected from infected laboratory animals was determined on a Vero E6 cell culture. The Ct in RT-PCR was considered an additional parameter for monitoring the viral load in the samples. The severity of lung tissue damage in Syrian hamsters with COVID-19 was assessed by histological preparations.Results and discussion. 50 % infecting doses in case of the intranasal infection have been determined, histological analysis of lung tissues performed. The pathogenicity of various variants of the SARS-CoV-2 virus for the Syrian hamster has been evaluated, differences in infecting doses and pathological changes in the lungs have been revealed. SARS-CoV-2 viruses belonging to Beta genetic variant have the highest virulence, while Alpha variant has the lowest one when comparing the studied strains by the ID50 value. The Delta and Omicron variants have a matched ability to cause specific damage to the tissues of the respiratory tract, while being inferior only to the Beta variant. It has been demonstrated that Syrian hamsters are an adequate model for assessing the pathogenicity of the SARS-CoV-2 virus variants of concern. Variants of SARS-CoV-2 virus during intranasal infection has shown different degree of pathogenicity in the Syrian hamster model

Comparison of Fixed Productive Capital And Its "Return"

The December 1969 Plenum of the CPSU Central Committee decisively emphasized that an increase in the effectiveness of production, based on comprehensive utilization of intensive factors of economic growth, is an urgent task, both economically and politically, for the further development of our country. At the present time, there is broad discussion by collectives at Soviet enterprises on the letter, addressed to all working people in the Soviet Union, from the Party Central Committee, the USSR Council of Ministers, the All-Union Central Council of Trade Unions, and the Central Committee of the Komsomol, "On the Improved Utilization of Production Reserves and the Intensification of the Regime of Economy in the National Economy"; the collectives are discovering new ways of increasing the productivity of social labor, improving the quality of production, and economizing on production resources, including fixed productive capital. In the process, output-capital ratio indices of individual enterprises and branches are being compared.

Anti-Scientific Methods Employed by Bourgeois Economists to Compare the National Incomes of the USSR and the US

The question of comparing the national incomes of the USSR and the US assumes great significance in the period when the USSR has entered the decisive stage of economic competition with capitalism. The national income is the most important synthetic index of a country's economic power, standard of living, and economic structure, as well as the progressiveness of the social system from the point of view of utilization of resources and rates of economic growth. But in order to compare the national incomes of the USSR and the US the same methodology must be employed for measurement. The problems of calculating the US national income by the method used in the USSR have been frequently raised in our press.

Are the Calculations of Economic Growth Rates for the USSR and Russia Reliable?

As far back as prewar times, serious Western scholars were skeptical of official Soviet statistical publications and made their own calculations. The works of K. Clark, A. Bergson, N. Jasny, W. Nutter, M. Harrison, and others won world renown and recognition. Scholars sharply criticized Soviet statistics at sessions of the Scientific Methodological Council of the USSR CSA [Central Statistical Administration] and at a statistics session of the Moscow Scholars' House.

Social Production in the Ussr and the USA (Some Aspects of Development)

The Soviet public is currently discussing the proposals made by N. S. Khrushchev, Chairman of the USSR Council of Ministers, concerning the fundamental principles of national economic planning, as well as his speech at the June Plenum of the CPSU Central Committee. His proposals, which are aimed at substantial changes in planning methods, define the basic direction of Soviet economic development.

One Way Out: Deepen the Reforms

An interesting discussion between two prominent Western sovietologistsâ V[ladimir] Treml and Mfichael] Ellman>sup>1>/sup>âtouched on important factors responsible for the collapse of the Soviet economic system. Less attention was devoted to another timely question, namely, 'the kind of policy that should be carried out in countries making the transition from one socioeconomic system to another.'>sup>2>/sup>