Feynman scaling violation on baryon spectra in pp collisions at LHC and cosmic ray energies

A significant asymmetry in baryon/antibaryon yields in the central region of high energy collisions is observed when the initial state has non-zero baryon charge. This asymmetry is connected with the possibility of baryon charge diffusion in rapidity space. Such a diffusion should decrease the baryon charge in the fragmentation region and translate into the corresponding decrease of the multiplicity of leading baryons. As a result, a new mechanism for Feynman scaling violation in the fragmentation region is obtained. Another numerically more significant reason for the Feynman scaling violation comes from the fact that the average number of cutted Pomerons increases with initial energy. We present the quantitative predictions of the Quark-Gluon String Model (QGSM) for the Feynman scaling violation at LHC energies and at even higher energies that can be important for cosmic ray physics.Comment: 21 pages, 11 figures, and 1 table. arXiv admin note: substantial text overlap with arXiv:1107.1615, arXiv:1007.320

The Updated Zwicky Catalog (UZC)

The Zwicky Catalog of galaxies (ZC), with m_Zw<=15.5mag, has been the basis for the Center for Astrophysics (CfA) redshift surveys. To date, analyses of the ZC and redshift surveys based on it have relied on heterogeneous sets of galaxy coordinates and redshifts. Here we correct some of the inadequacies of previous catalogs by providing: (1) coordinates with <~2 arcsec errors for all of the Nuzc catalog galaxies, (2) homogeneously estimated redshifts for the majority (98%) of the data taken at the CfA (14,632 spectra), and (3) an estimate of the remaining "blunder" rate for both the CfA redshifts and for those compiled from the literature. For the reanalyzed CfA data we include a calibrated, uniformly determined error and an indication of the presence of emission lines in each spectrum. We provide redshifts for 7,257 galaxies in the CfA2 redshift survey not previously published; for another 5,625 CfA redshifts we list the remeasured or uniformly re-reduced value. Among our new measurements, Nmul are members of UZC "multiplets" associated with the original Zwicky catalog position in the coordinate range where the catalog is 98% complete. These multiplets provide new candidates for examination of tidal interactions among galaxies. All of the new redshifts correspond to UZC galaxies with properties recorded in the CfA redshift compilation known as ZCAT. About 1,000 of our new measurements were motivated either by inadequate signal-to-noise in the original spectrum or by an ambiguous identification of the galaxy associated with a ZCAT redshift. The redshift catalog we include here is ~96% complete to m_Zw<=15.5, and ~98% complete (12,925 galaxies out of a total of 13,150) for the RA(1950) ranges [20h--4h] and [8h--17h] and DEC(1950) range [-2.5d--50d]. (abridged)Comment: 34 pp, 7 figs, PASP 1999, 111, 43

Quark-Gluon String Model Description of Baryon Production in K^{\pm}N Interactions

The process of baryon production in K p collisions at high energies is considered in the framework of the Quark-Gluon String Model. The contribution of the string-junction mechanism to the strange baryon production is analysed. The results of numerical calculations are in reasonable agreement with the data on inclusive spectra of p, Lambda, bar{Lambda}, and on the bar{Lambda}/Lambda asymmetry. The predictions for Xi and Omega baryons are presented.Comment: 19 pages, 7 figure

Ontologization of mental representations for management purposes

The article considers the problems of ontologization of mental representations of a certain field of activity and the corresponding subject area for the purposes of management automation. For the first time, the authors raise the question about the need to include mental representations of the sphere of activity that the subject area reflects in the ontology of the subject area. Ontologization of mental representations is necessary to identify the participants' understanding of their actions, which will change approaches to management, and for deep training of artificial intelligence in order to transfer part of its management functions to it. On the basis of connectionist approaches to understanding thinking, the paper considers the processes of forming mental representations and changing their attributes. The article gives a new definition and typology of mental representations

Nonlinear interaction of light with Bose-Einstein condensate: new methods to generate subpoissonian light

We consider $\Lambda$-type model of the Bose-Einstein condensate of sodium atoms interacting with the light. Coefficients of the Kerr-nonlinearity in the condensate can achieve large and negative values providing the possibility for effective control of group velocity and dispersion of the probe pulse. We find a regime when the observation of the "slow" and "fast" light propagating without absorption becomes achievable due to strong nonlinearity. An effective two-level quantum model of the system is derived and studied based on the su(2) polynomial deformation approach. We propose an efficient way for generation of subpoissonian fields in the Bose-Einstein condensate at time-scales much shorter than the characteristic decay time in the system. We show that the quantum properties of the probe pulse can be controlled in BEC by the classical coupling field.Comment: 13 pages, 6 figures, 1 tabl

THE EYE — MIRROR OF CARDIOVASCULAR DISORDERS. EVOLUTION OF PERCEPTION ABOUT HYPERTENSIVE RETINOPATHY

Published data often contain conflicting views on the relationship of retina changes in arterial hypertension (HT) with cardiovascular disorders and target organs lesions. Along with the classification and pathophysiology of hypertensive retinopathy, evidence for its association with the HT course, target organ lesions and prognosis is presented. Functional disorders of the eyes point at the involvement of retina into the pathological process even in HT early stages and are able to reflect the severity of hypertension. This supports a close relationship of HT with eye disease as a target organ. Available data support also possibility to assess changes on the eye fundus in patients with uncomplicated HT, indicating that it was premature decision to exclude eyes from the list of target organs in HT

STUDY OF THE INFLUENCE OF FACTORS ON THE CONTENT OF RUSSIAN FEDERAL CHANNELS IN THE CONTEXT OF DIGITALIZATION

The authors carry out a study of the influence of various factors on the content of Russian federal channels. Using content analysis of the broadcast data were obtained to identify the influence of factors, characteristic for the stage of formation of a consumer society in Russia on the content of television channels and the analysis of conformity of telecasts the authors developed, criteria that have been formed and considered together with current trends in society related to the digitalization processes, and preferences of Russians. Television is an important social institution that should not only reflect the current situation in society, but also broadcast certain behaviors, culture and values. Television content requires a lot of attention, because now there are significant changes in the individual in the new conditions of digital communication. Modern television content should move away from the simple model of mass culture, which is based on a standardized approach based on entertainment content. Content should take into account modern consumer values

Mechanisms for promoting audiovisual works on foreign OTT services

Recently, there has been an increase in the number of companies seeking to create digital platforms. Developing and investing in their own original content has opened up the opportunity for Russian services and companies to promote it on foreign platforms, gaining access to new markets and increasing attractiveness for potential foreign investors. The cultural content transmission works on the principle of streaming, which continuously delivers individualised information to the user via the Internet. Domestic OTT services, unlike TV channels, have not yet decided on their positioning. Platforms do not focus on individual segments, but on a variety of content that has a potential viewer. This strategy is aimed at attracting the maximum number of new subscribers. The emergence of streaming services has brought with it new opportunities for producers from various countries. In order to effectively promote audiovisual content, the authors justified and selected criteria for conducting a comparative analysis of mechanisms for promoting audiovisual works on foreign OTT services so that the company could choose the most appropriate one for itself

Online cinemas competitive advantages formation

With the development of the Internet, consumers began to strive for unconventional ways of viewing content, which soon led to the development of video-on-demand services. Content costs are a strategic streaming services resource in the struggle to attract users, as competition in the field of streaming platforms becomes more and more acute every year. Under these conditions, the formation of original content makes it possible to increase the competitive advantage by changing the position of the main players in the market while winning and retaining the audience. The article investigated the factors that form the competitive advantages of online cinemas. Based on statistical data, the user experience was analysed according to the selected factors, because of which the leaders of the streaming service were selected and the active participation of exclusive content in the streaming services differentiation was revealed. Based on the results of the study on the factors generated, the authors concluded that almost all platforms have similar parameters, so the platform selection will depend on the quality level of its own content, which will allow the platform to provide itself with an additional competitive advantage

Structure and Morphology Effects on the Optical Properties of Bimetallic Nanoparticle Films Laser Deposited on a Glass Substrate

Moving nanosecond laser system is used for laser-assisted thermodiffusion deposition of metallic nanoparticles from water-based colloidal solutions. The results obtained for both gold and silver nanoparticles show that film morphology strongly depends on laser scanning speed and the number of passages. We show, furthermore, the possibility of producing bimetallic Au:Ag thin films by laser irradiation of the mixed solutions. As a result of several laser scans, granular nanometric films are found to grow with a well-controlled composition, thickness, and morphology. By changing laser scanning parameters, film morphology can be varied from island structures to quasi-periodic arrays. The optical properties of the deposited structures are found to depend on the film composition, thickness, and mean separation between the particles. The transparency spectra of the deposited films are shown to be defined by their morphology