18 research outputs found

    Adaptation of Students Depending on the Type of Temperament to Educational Activities in Higher School in the Conditions of Online Learning

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    The article examines the influence of the type of temperament on the adaptation of students to educational activities at the university in the context of online learning. The article's main aim is to study the regulatory-adaptive status of students depending on the classical and mixed types of temperament. To do so, we analyze and investigate a number of sources on this issue. For the successful adaptation of students to educational activities in the context of online learning, higher school teachers should determine what properties and characteristics of the nervous system their students have. The authors conclude that the regulatory-adaptive abilities of students to the educational process depend on the type of temperament. They are the highest among phlegmatic/sanguine students and the lowest among melancholic students

    Invariant amino acids essential for decoding function of polypeptide release factor eRF1

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    In eukaryotic ribosome, the N domain of polypeptide release factor eRF1 is involved in decoding stop signals in mRNAs. However, structure of the decoding site remains obscure. Here, we specifically altered the stop codon recognition pattern of human eRF1 by point mutagenesis of the invariant Glu55 and Tyr125 residues in the N domain. The 3D structure of generated eRF1 mutants was not destabilized as demonstrated by calorimetric measurements and calculated free energy perturbations. In mutants, the UAG response was most profoundly and selectively affected. Surprisingly, Glu55Arg mutant completely retained its release activity. Substitution of the aromatic ring in position 125 reduced response toward all stop codons. This result demonstrates the critical importance of Tyr125 for maintenance of the intact structure of the eRF1 decoding site. The results also suggest that Tyr125 is implicated in recognition of the 3d stop codon position and probably forms an H-bond with Glu55. The data point to a pivotal role played by the YxCxxxF motif (positions 125–131) in purine discrimination of the stop codons. We speculate that eRF1 decoding site is formed by a 3D network of amino acids side chains

    IgM antibodies against malondialdehyde and phosphorylcholine in different systemic rheumatic diseases

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    IgM antibodies against phosphorylcholine (anti-PC) and malondialdehyde (anti-MDA) may have protective properties in cardiovascular and rheumatic diseases. We here compare these antibodies in systemic rheumatic conditions and study their properties. Anti-PC and anti-MDA was measured using ELISA in patients with SLE (374), RA (354), Mixed connective tissue disease (MCTD, 77), Systemic sclerosis (SSc, 331), Sjögren's syndrome (SjS, 324), primary antiphospholipid syndrome (PAPs, 65), undifferentiated connective tissue disease (UCTD, 118) and 515 matched healthy controls (HC). Cardiovascular score (CV) was broadly defined based on clinical disease symptoms. Anti-PC and anti-MDA peptide/protein characterization were compared using a proteomics de novo sequencing approach. anti-MDA and anti-PC were extracted from total IgM. The proportion of Treg cells was determined by flow cytometry. The maximal difference between cases and controls was shown for MCTD: significantly lower IgM Anti-PC but not anti-MDA among patients (median 49.3RU/ml vs 70.4 in healthy controls, p(t-test) = 0.0037). IgM low levels were more prevalent in MCTD, SLE, SjS, SSc and UCTD. IgM anti-PC variable region profiles were different from and more homologous than anti-MDA. Anti-PC but not anti-MDA were significantly negatively correlated with CV in the whole patient group. In contrast to IgM anti-PC, anti-MDA did not promote polarization of Tregs. Taken together, Anti-PC is decreased in MCTD and also in SLE, SjS and SSc but not in other studied diseases. Anti-PC may thus differentiate between these. In contrast, anti-MDA did not show these differences between diseases studied. Anti-PC level is negatively correlated with CV in the patient group cohort. In contrast to anti-PC, anti-MDA did not promote Treg polarization. These findings could have both diagnostic and therapeutic implications, one possibility being active or passive immunization with PC in some rheumatic conditions

    IgM antibodies against malondialdehyde and phosphorylcholine in different systemic rheumatic diseases

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    IgM antibodies against phosphorylcholine (anti-PC) and malondialdehyde (anti-MDA) may have protective properties in cardiovascular and rheumatic diseases. We here compare these antibodies in systemic rheumatic conditions and study their properties. Anti-PC and anti-MDA was measured using ELISA in patients with SLE (374), RA (354), Mixed connective tissue disease (MCTD, 77), Systemic sclerosis (SSc, 331), Sjögren's syndrome (SjS, 324), primary antiphospholipid syndrome (PAPs, 65), undifferentiated connective tissue disease (UCTD, 118) and 515 matched healthy controls (HC). Cardiovascular score (CV) was broadly defined based on clinical disease symptoms. Anti-PC and anti-MDA peptide/protein characterization were compared using a proteomics de novo sequencing approach. anti-MDA and anti-PC were extracted from total IgM. The proportion of Treg cells was determined by flow cytometry. The maximal difference between cases and controls was shown for MCTD: significantly lower IgM Anti-PC but not anti-MDA among patients (median 49.3RU/ml vs 70.4 in healthy controls, p(t-test) = 0.0037). IgM low levels were more prevalent in MCTD, SLE, SjS, SSc and UCTD. IgM anti-PC variable region profiles were different from and more homologous than anti-MDA. Anti-PC but not anti-MDA were significantly negatively correlated with CV in the whole patient group. In contrast to IgM anti-PC, anti-MDA did not promote polarization of Tregs. Taken together, Anti-PC is decreased in MCTD and also in SLE, SjS and SSc but not in other studied diseases. Anti-PC may thus differentiate between these. In contrast, anti-MDA did not show these differences between diseases studied. Anti-PC level is negatively correlated with CV in the patient group cohort. In contrast to anti-PC, anti-MDA did not promote Treg polarization. These findings could have both diagnostic and therapeutic implications, one possibility being active or passive immunization with PC in some rheumatic conditions

    IgM antibodies against malondialdehyde and phosphorylcholine in different systemic rheumatic diseases

    Get PDF
    IgM antibodies against phosphorylcholine (anti-PC) and malondialdehyde (anti-MDA) may have protective properties in cardiovascular and rheumatic diseases. We here compare these antibodies in systemic rheumatic conditions and study their properties. Anti-PC and anti-MDA was measured using ELISA in patients with SLE (374), RA (354), Mixed connective tissue disease (MCTD, 77), Systemic sclerosis (SSc, 331), Sjögren's syndrome (SjS, 324), primary antiphospholipid syndrome (PAPs, 65), undifferentiated connective tissue disease (UCTD, 118) and 515 matched healthy controls (HC). Cardiovascular score (CV) was broadly defined based on clinical disease symptoms. Anti-PC and anti-MDA peptide/protein characterization were compared using a proteomics de novo sequencing approach. anti-MDA and anti-PC were extracted from total IgM. The proportion of Treg cells was determined by flow cytometry. The maximal difference between cases and controls was shown for MCTD: significantly lower IgM Anti-PC but not anti-MDA among patients (median 49.3RU/ml vs 70.4 in healthy controls, p(t-test) = 0.0037). IgM low levels were more prevalent in MCTD, SLE, SjS, SSc and UCTD. IgM anti-PC variable region profiles were different from and more homologous than anti-MDA. Anti-PC but not anti-MDA were significantly negatively correlated with CV in the whole patient group. In contrast to IgM anti-PC, anti-MDA did not promote polarization of Tregs. Taken together, Anti-PC is decreased in MCTD and also in SLE, SjS and SSc but not in other studied diseases. Anti-PC may thus differentiate between these. In contrast, anti-MDA did not show these differences between diseases studied. Anti-PC level is negatively correlated with CV in the patient group cohort. In contrast to anti-PC, anti-MDA did not promote Treg polarization. These findings could have both diagnostic and therapeutic implications, one possibility being active or passive immunization with PC in some rheumatic conditions.PRECISESADS Clinical Consortium Members: Te research leading to these results has received support from the Innovative Medicines Initiative Joint Undertaking under grant agreement n°115565, resources of which are composed of fnancial contribution from the European Union’s Seventh Framework Programme (FP7/2007–2013) and EFPIA companies in kind contribution. Swedish Heart Lung foundation and Swedish Rheumatism Association also contributed to fnancing. Open access funding provided by Karolinska Institute.Ye

    Cohesin-Mediated Chromatin Interactions and Autoimmunity

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    Proper physiological functioning of any cell type requires ordered chromatin organization. In this context, cohesin complex performs important functions preventing premature separation of sister chromatids after DNA replication. In partnership with CCCTC-binding factor, it ensures insulator activity to organize enhancers and promoters within regulatory chromatin. Homozygous mutations and dysfunction of individual cohesin proteins are embryonically lethal in humans and mice, which limits in vivo research work to embryonic stem cells and progenitors. Conditional alleles of cohesin complex proteins have been generated to investigate their functional roles in greater detail at later developmental stages. Thus, genome regulation enabled by action of cohesin proteins is potentially crucial in lineage cell development, including immune homeostasis. In this review, we provide current knowledge on the role of cohesin complex in leukocyte maturation and adaptive immunity. Conditional knockout and shRNA-mediated inhibition of individual cohesin proteins in mice demonstrated their importance in haematopoiesis, adipogenesis and inflammation. Notably, these effects occur rather through changes in transcriptional gene regulation than through expected cell cycle defects. This positions cohesin at the crossroad of immune pathways including NF-kB, IL-6, and IFNγ signaling. Cohesin proteins emerged as vital regulators at early developmental stages of thymocytes and B cells and after antigen challenge. Human genome-wide association studies are remarkably concordant with these findings and present associations between cohesin and rheumatoid arthritis, multiple sclerosis and HLA-B27 related chronic inflammatory conditions. Furthermore, bioinformatic prediction based on protein-protein interactions reveal a tight connection between the cohesin complex and immune relevant processes supporting the notion that cohesin will unearth new clues in regulation of autoimmunity

    DEVELOPMENT OF SYSTEMS ENGINEERING PRINCIPLES OF THE ENERGY EFFICIENCY OF BUILDINGS

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    The authors have developed a set of systems engineering principles of the energy efficiency of buildings. International and domestic scientists have proven that the construction industry is the major consumer of energy. The problem of energy efficiency applies both to future and to existing buildings. The authors have identified the problem of finding a new energy efficient methodology of organization of the construction process. The authors also provide their definition of an energy efficient building. The principles of systems engineering of energy efficient buildings are also formulated in the article. The principle of a functional system means that the energy efficiency represents a systemic factor of the construction process. The probabilistic-statistical principle means that the energy efficiency of the construction process is variable because of exposure to random factors, so they should be characterized by the distributions that reflect the probability of attaining the projected values of any parameters of impact. The principle of simulation means that simulation is the only possible method of research in respect of any building taken as a complex organizational, technological and management system. The principle of interactive graphics means that the methodology of organization and management of a modern building requires the application of graphical methods of information presentation and their adjustment to the increased energy consumption rate. The principle of integration of engineering and economic constituents means that the assessment of the energy efficiency of buildings must take account of engineering, organizational and economic issues. The authors believe that the implementation of the principles of systems engineering for the purposes of energy efficient buildings should serve as the methodological basis of construction to promote the energy efficiency of the construction industry

    Implementing the pedagogical potential of social and cultural activities in the institutional environment

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    The article is concerned with the further development of social and cultural activities due to their great social demand. The authors of the article associate this task with the influence of social institutions on state cultural organizations providing leisure activities for different groups of the population. They have considered the specifics of such impacts in the Russian society of the transition period. As a result, they have revealed new opportunities in forming programs of social and cultural activities with the use of their creative achievements throughout the history of Russia and foreign countries. In addition, the article traces the most common trends in socio-cultural activities focused on institutional and state issues and determines the most promising forms of such activities. In this process, a significant role is played by socio-cultural clubs and mass theater programs. The article sets new priorities in the further development of amateur activities and performances, which effectively combines mass participation and skillfulness. The study also outlines prospects for a more active state participation in the organization of social and cultural activities. El artículo se ocupa del mayor desarrollo de las actividades sociales y culturales debido a su gran demanda social. Los autores del artículo asocian esta tarea con la influencia de las instituciones sociales en las organizaciones culturales estatales que brindan actividades de ocio para diferentes grupos de la población. Han considerado los detalles de tales impactos en la sociedad rusa del período de transición. Como resultado, han revelado nuevas oportunidades en la formación de programas de actividades sociales y culturales con el uso de sus logros creativos a lo largo de la historia de Rusia y países extranjeros. Además, el artículo rastrea las tendencias más comunes en las actividades socioculturales enfocadas en temas institucionales y estatales y determina las formas más prometedoras de tales actividades. En este proceso, los clubes socioculturales y los programas de teatro de masas juegan un papel importante. El artículo establece nuevas prioridades en el desarrollo ulterior de las actividades y actuaciones de aficionados, que combinan efectivamente la participación masiva y la habilidad. El estudio también describe las perspectivas de una participación estatal más activa en la organización de actividades sociales y culturales

    Molecular Surveillance of Clinical Neisseria gonorrhoeae Isolates in Russia ▿ †

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    The choice of adequate methods for epidemiological purposes remains a challenging problem in Neisseria gonorrhoeae molecular monitoring. In this study, the collection of geographically unrelated gonococci (n = 103) isolated in Russian clinics was comparably tested by (i) a traditional serotyping scheme, (ii) por typing, (iii) Neisseria gonorrhoeae multiantigen sequence typing (NG-MAST), and (iv) multilocus sequence typing (MLST). It is shown that, according to sequencing data, a third of the strains carried new porB1 alleles, as well as tbpB ones, and more than half of the samples had new sequence types (STs) as determined by NG-MAST or MLST. The discriminatory power for each typing method was calculated by using the Hunter-Gaston discriminatory index, D. Commonly, modern nucleic acid-based typing methods (por typing, NG-MAST, and MLST) appeared to be more efficient than the classical serotyping scheme. While the traditional serotyping gave a D value of 0.82, the por typing, NG-MAST, and MLST approaches yielded D values of 0.97, 0.98, and 0.91, respectively. Each typing technique revealed the distribution of gonococci slightly correlated with their geographical sources. However, only the MLST method STs were highly associated with certain phenotypes. Although ST1594, ST1892, and ST6720 were typical for susceptible gonococci, ST1901 and ST6716 were undoubtedly associated with a multidrug-resistant phenotype. We conclude that every tested nucleic acid-based typing method is suitable for N. gonorrhoeae molecular surveillance. However, the MLST method seems to serve large-scale epidemiological purposes, whereas the NG-MAST and por typing approaches are more appropriate for the investigation of local outbreaks
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