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The Patient Health Questionnaire-4 (PHQ-4) is one of the most well-known and widely used instruments for assessing anxiety and depressive symptoms.Objective. The aim of this study was to adapt the Russian-language version of the PHQ-4 in the general population.Material and Methods. Data collection was carried out with the help of the service «Anketolog». The participants were 2,000 Russians (1,000 men and 1,000 women) aged 18 to 60 years (M = 38.78; SD = 9.25).Results. The psychometric analysis confirmed the internal reliability and discriminative validity of the adapted questionnaire. The proof of the factor validity of the Russian version of the PHQ-4 was the identification of a two-factor structure describing the symptoms of anxiety and depression, and factor invariance by age, level of education, marital status, parental status, financial status and place of residence. Among the Russians, 44.9% had clinically significant anxiety symptoms and 42.9% had clinically significant depressive symptoms. Russians with anxiety and depressive symptoms more often sought counseling from a psychologist, coach, psychiatrist and neurologist, underwent psychopharmacological treatment in connection with psychological requests, contacted support groups and a psychological help hotline, used online products of automated or semi-automated psychological support, read psychological literature and used psychoactive substances.Conclusion. The psychometric properties of the Russian-language version of the PHQ-4 turned out to be similar to the psychometric characteristics of the original version of the questionnaire, and therefore the adapted questionnaire can be recommended for screening anxiety and depression in the general Russianspeaking population.

Objective. To determine the influence of the urgency of performing surgical decompression of the spinal cord (SC) on the course of acute and early periods of complicated injury of the lower cervical spine. Material and Methods. The results of treatment of 75 patients with acute complicated injury of the lower cervical spine with ASIA A and ASIA B severity of spinal cord injuries were retrospectively analyzed. Two groups were formed, depending on the timing of surgical decompression of the spinal cord after injury. Group I included 33 patients in whom the SC decompression was performed within the first eight hours after the injury, and Group II included 42 patients in whom the SC decompression was performed in more than eight hours after the injury. Results. The mean age of patients in Group I was 29 [25; 39] years, in Group II – 35 [30; 42] years (p = 0.129). There were 31 (94.0 %) male patients in Group I and 38 (90.5 %; p > 0.999) in Group II. The time from the moment of injury to decompression of the spinal cord was 6.1 [5.0; 7.5] hours in Group I and 16.9 [11.8; 39.6] hours in Group II (p < 0.001). Pneumonia developed in 55 % [38 %; 70 %] of patients in Group I and in 86 % [72 %; 93 %] of patients in Group II (p = 0.004). The duration of pneumonia in Group I was 18 [8; 20] days, and in Group II – 28 [20; 39] days (p < 0.001). It was shown that the risk ratio for developing pneumonia in patients with delayed decompression of the spinal cord was 2.08 [1.17; 3.67] times higher (p = 0.01). The duration of mechanical ventilation in Group I was 12 [7; 17] days versus 19 [11; 26] days in Group II (p = 0.001). Maintaining the target blood pressure levels ≥ 85 mm Hg was required in 73 (97.3 %) patients with a duration of hemodynamic support of 6 [3; 10] days in Group I versus 10 [5; 15] days in Group II (p = 0.019). It was shown that SC decompression within the first eight hours after injury reduced the proportion of patients with a SOFA score of 4 points or more by 20 % in the acute period and by 42 % by the fifth day of the early period of injury. Positive dynamic in neurological status was recorded in 30.0 % [17.0 %; 47.0 %] of patients in Group I and only in 2.0 % [0.0 %; 12.0 %] of patients in Group II (p < 0.001). The duration of treatment in the ICU was 20 [16; 25] days in Group I and 29 [23.5; 41.75] days in Group II (p = 0.001). The total length of hospital stay was 38 [27; 46] days in Group I versus 57 [45.75; 67.50] days in Group II (p < 0.001). Mortality was recorded only in Group II and amounted to 5.3 %. Conclusion. Decompression and stabilization surgery within the first eight hours after the injury, together with a complex of intensive care measures for acute complicated injury of the lower cervical spine have a significant positive effect on the course of the acute and early periods of traumatic SC disease.

The emergence and active development of digital ecosystems defines a new object of management study, integrating knowledge management, innovation management, operations management, supply chain management and organizational change. In conditions of competition and market barriers, economic entities actively use digital ecosystems as a key success factor. Digital ecosystems themselves are a special, complex management object whose properties change as they go through various stages of their life cycle. At the same time, the life cycles of digital ecosystems are influenced by the objects and subjects functioning in their contour and the economic systems associated with them. Based on the observation of economic systems and the influence of various factors on them, the authors determined the stages of the life cycle of digital ecosystems. Based on the study of the specifics of the behavior of digital ecosystems at the stages of their life cycles, the authors made conclusions about the most significant features of their management.

Enhancing energy efficiency within the building sector is imperative to curbing energy losses, given that this sector alone contributes to over 34% of global energy consumption. Employing a building management system, along with its regular updates, presents a strategic avenue to decrease energy usage, enhance building energy efficiency, and more. Tailored control strategies, aligned with the unique characteristics and usage patterns of each building, are essential for achieving energy savings. This article presents an evaluation of HVAC system efficiency in office buildings, utilizing a data-driven approach coupled with simulations conducted in building performance simulation software. The research explores the control strategy of an office building equipped with a constant air volume HVAC system, featuring a regularly controlled air handling unit. The objective is to boost energy efficiency while striking a balance between occupant comfort and energy consumption. The findings indicate that by analyzing measured data and adjusting the configurable parameters, the energy consumption of buildings can be significantly reduced. The close monitoring of indoor parameters by building operators and making corresponding adjustments to the HVAC system can yield energy savings of up to 16%. Leveraging these insights, this paper suggests integrating data-driven and dynamic simulation methods into building management system models to optimize HVAC systems, enhance energy efficiency, and advance ambitious carbon neutrality objectives.

Abstract Ovarian cancer often develops resistance to conventional therapies, hampering their effectiveness. Here, using ex vivo paired ovarian cancer ascites obtained before and after chemotherapy and in vitro therapy-induced secretomes, we show that molecules secreted by ovarian cancer cells upon therapy promote cisplatin resistance and enhance DNA damage repair in recipient cancer cells. Even a short-term incubation of chemonaive ovarian cancer cells with therapy-induced secretomes induces changes resembling those that are observed in chemoresistant patient-derived tumor cells after long-term therapy. Using integrative omics techniques, we find that both ex vivo and in vitro therapy-induced secretomes are enriched with spliceosomal components, which relocalize from the nucleus to the cytoplasm and subsequently into the extracellular vesicles upon treatment. We demonstrate that these molecules substantially contribute to the phenotypic effects of therapy-induced secretomes. Thus, SNU13 and SYNCRIP spliceosomal proteins promote therapy resistance, while the exogenous U12 and U6atac snRNAs stimulate tumor growth. These findings demonstrate the significance of spliceosomal network perturbation during therapy and further highlight that extracellular signaling might be a key factor contributing to the emergence of ovarian cancer therapy resistance.

Introduction. Modern concepts of education are based on the principles of anticipation, determination of the present by the future (advanced education, Life Long Learning). The same pattern applies to the personality of both the subject of life in general and professional life in particular. Aim. Based on the theoretical and methodological analysis, identification and empirical research of the psychological characteristics of the future, the present research aims to consider the future as a personal construct in the structure of the subjective image of professional life. Methodology and research methods. The key methodological approaches are the subjective approach and the theoretical and methodological foundations for using the synergetic approach to study the psyche, mental phenomena and processes. The study employs survey methods; the methods of mathematical and statistical data processing: comparative analysis and factor analysis were carried out using the IBM SPSS Statistics v.20 program. Results. Based on theoretical ideas about time modes, time perspective, psychological characteristics of organisation and perception of time, as well as the results of an analysis of the works of foreign and Russian authors, a structural-functional model of the subjective image of professional life is proposed, including four blocks: a block of retrospection, a block of regulation of actual activity, a prognostic block, and a transspective block. Scientific novelty. The use of a subjective and synergetic approach to modelling the image of the professional future is justified. A structural-functional model of the image of the professional future is proposed, including invariants that represent a formal and meaningful representation of the temporal modes of the past, present and future and a mechanism for comparing the current state with the desired (“needed future”). Practical significance. The presented structural-functional model of the subjective image of professional life can serve as the basis for the development of a subject-oriented approach to professional guidance and support of professional development at the stage of choosing a profession and professional training with practical means of constructing a professional future.

Introduction. The COVID-19 pandemic caused by SARS-CoV-2 has created serious health problems worldwide. The most effective way to prevent the occurrence of new epidemic outbreaks is vaccination. One of the modern and effective approaches to vaccine development is the use of virus-like particles (VLPs). The aim of the study is to develop a technology for production of VLP based on recombinant SARS-CoV-2 proteins (E, M, N and S) in insect cells. Materials and methods. Synthetic genes encoding coronavirus proteins E, M, N and S were used. VLP with various surface proteins of strains similar to the Wuhan virus, Delta, Alpha and Omicron were developed and cloned into the pFastBac plasmid. The proteins were synthesized in the baculovirus expression system and assembled into VLP in the portable Trichoplusia ni cell. The presence of insertion in the baculovirus genome was determined by PCR. ELISA and immunoblotting were used to study the antigenic activity of VLP. VLP purification was performed by ultracentrifugation using 20% sucrose. Morphology was assessed using electron microscopy and dynamic light scattering. Results. VLPs consisting of recombinant SARS-CoV-2 proteins (S, M, E and N) were obtained and characterized. The specific binding of antigenic determinants in synthesized VLPs with antibodies to SARS-CoV-2 proteins has been demonstrated. The immunogenic properties of VLPs have been studied. Conclusion. The production and purification of recombinant VLPs consisting of full-length SARS-CoV-2 proteins with a universal set of surface antigens have been developed and optimized. Self-assembling particles that mimic the coronavirus virion induce a specific immune response against SARS-CoV-2.

The paper presents the results of a study aimed to investigate the correlations between oculomotor reading behavior and self-report data of Russian high school students on their practice of using metacognitive strategies. It was found that high school students tended to use problem-solving reading strategies, while seldom using supportive reading strategies. Differences in the use of metacognitive strategies were found between schools that emphasized differently the development of reading competence in middle school. The findings suggested that there were differences in oculomotor measures across groups with varying levels of metacognitive strategy use. The paper outlines possible directions for further research on this topic.

In the article, the authors answered the following questions: How often do anxious patients occur in clinical practice? Why do most patients with anxiety see primary care physicians rather than a psychiatrist? What complaints and manifestations help to suspect anxiety in the patient? How can a non-psychiatrist identify and diagnose anxiety? How to manage a patient with diagnosed anxiety? Short-term and long-term outcomes/prognosis.

The summarized data on the content of organic carbon (Corg) in the subtypes of gray forest soils occurring on the territory of Russia was presented. It was shown that the humus horizons of virgin light-gray, typical-gray, and dark-gray forest soils contain, on average, 2.16 ± 0.67, 2.42 ± 0.61, and 3.58 ± 0.95% Сorg, respectively, while the plowing layers of arable soils contain 1.36 ± 0.40, 1.71 ± 0.40, and 2.84 ± 0.86%, respectively. Structural (particulate organic matter 0.05–2 mm in size, CPOM, and mineral-associated organic matter

Arginine metabolism plays an important role in regulating the functions of immune cells in mammals. Pathogenic microbes use the mechanism of arginine depletion to suppress the immune response during infection. Arginine deiminase is a microbial arginine-hydrolyzing enzyme important for survival at low pH in the focus of infection, or in phagolysosomes, as well as under low-glucose conditions. The effect of bacterial arginine deiminase on the functions of adaptive immune cells remains poorly understood. The aim of our study was to evaluate the effect of streptococcal arginine deiminase on the proliferation and autophagy of CD4+ and CD8+ human peripheral blood T lymphocytes.The enzyme effects were studied with supernates of ultrasonic lysates from parental Streptococcus pyogenes M49-16, and its isogenic mutant with inactivated arcA gene (Streptococcus pyogenes M49-16delarcA). The study was performed with blood samples of healthy donors. The fraction of mononuclear leukocytes was isolated by centrifugation in a Ficoll density gradient. To evaluate proliferation levels, a method based on the staining of intracellular proteins with vital fluorescent dye carboxyfluorescein succinimidyl ester (CFSE) was used. The level of autophagy was studied using the fluorescent Lysotracker Green DND-26 dye. To analyze the proliferation and autophagy of T helper cells (CD3+CD4+) and cytotoxic T lymphocytes (CD3+CD4-), the obtained cell suspensions were stained with antibodies against CD4, CD45RA, and CD3. The proportion of necrotic cells was determined by staining with a fluorescent DNA-binding DAPI dye. The normality of the distribution was assessed by Shapiro–Wilk test. The data were analyzed using Kruskal–Wallis criterion, followed by Mann–Whitney criterion for pairwise comparisons and expressed as median and interquartile ranges (Q0.25-Q0.75).When comparing the effects of supernatants from the parental and mutant streptococcal strains, which differed in expression of arginine deiminase gene, we have shown that the bacterial enzyme had no effect on the functions of inactive lymphocytes. However, streptococcal arginine deiminase completely suppressed proliferation of CD4+ and CD8+T lymphocytes stimulated with anti-CD2/CD3/CD28 antibodies. These effects were accompanied by a decrease in the autophagy levels. At the same time, arginine deiminase did not exert cytotoxic effects upon lymphocytes. L-arginine applied at the doses exceeding physiological levels caused restoration of the cellular functions. There were no differences between the studied parameters of CD4+ and CD8+T lymphocyte subsets.The obtained data show that the antiproliferative effect of arginine demimnase may be associated with ability of the enzyme to inhibit autophagy and confirm an opportunity of the bacterial enzyme to suppress host adaptive immune responses.

At present, a large number of scientific works devoted to the study of the features of the geological structure and the development of oil deposits in complex carbonate reservoirs are based on the use of any one research method. This article shows the advantages of the integrated use of modern methods of core research, including X-ray microtomography and electron microscopy, as well as data from hydrodynamic and field studies of wells. The advantage of the approach used is the ability to study the deposit at three levels: core-well-development object, it is reasonable to transfer micro-survey data to the regularities of the implementation of technological processes of oil production. The objects of research in this article are the Famennian oil deposits of two neighboring fields, which, at first glance, are analogues in terms of the similarity of the enlarged geological and physical characteristics. Comprehensive studies of core samples from these deposits made it possible to establish differences both in the mineral composition of rocks and in the structure of their void space, especially in the size and distribution of pore channels. So, with approximately equal porosity for one of the deposits, the presence of two types of voids and a twofold prevalence of the size of the largest of them were established. According to the complex of laboratory methods for studying the core, the reservoir is classified as a porous type (no cracks were found). The performed interpretation of the hydrodynamic studies confirmed this fact, made it possible to establish the presence of a dependence of the reservoir permeability on the formation pressure (deformation of the void space of the reservoir), and also to build the corresponding individual dependence for each well. Comparison of the equations approximating the dependence data showed a more pronounced deformation of the reservoir, which is characterized by the presence of large pores and caverns. That is, a complex of laboratory and hydrodynamic studies made it possible to establish the probability of deformation of the void space of a carbonate reservoir even in the absence of cracks in it. In turn, the reservoir deformation is singled out as the most probable cause explaining the different rates of decline in well flow rates of the fields under consideration.

Schizophrenia (SZ) is associated with an increased risk of life-long cognitive impairments, age-related chronic disease, and premature mortality. We investigated evidence for advanced brain ageing in adult SZ patients, and whether this was associated with clinical characteristics in a prospective meta-analytic study conducted by the ENIGMA Schizophrenia Working Group. The study included data from 26 cohorts worldwide, with a total of 2803 SZ patients (mean age 34.2 years; range 18-72 years; 67% male) and 2598 healthy controls (mean age 33.8 years, range 18-73 years, 55% male). Brain-predicted age was individually estimated using a model trained on independent data based on 68 measures of cortical thickness and surface area, 7 subcortical volumes, lateral ventricular volumes and total intracranial volume, all derived from T1-weighted brain magnetic resonance imaging (MRI) scans. Deviations from a healthy brain ageing trajectory were assessed by the difference between brain-predicted age and chronological age (brain-predicted age difference [brain-PAD]). On average, SZ patients showed a higher brain-PAD of +3.55 years (95% CI: 2.91, 4.19; I2 = 57.53%) compared to controls, after adjusting for age, sex and site (Cohen's d = 0.48). Among SZ patients, brain-PAD was not associated with specific clinical characteristics (age of onset, duration of illness, symptom severity, or antipsychotic use and dose). This large-scale collaborative study suggests advanced structural brain ageing in SZ. Longitudinal studies of SZ and a range of mental and somatic health outcomes will help to further evaluate the clinical implications of increased brain-PAD and its ability to be influenced by interventions.

The paper analyzes the teaching experiment regarding the use of mobile apps in the assessment of student learning. The study involved survey and self-description methods offered to students and instructors to assess the effectiveness of using mobile apps in learning. The study was conducted among 320 s-year students of the I.M. Sechenov First Moscow State Medical University and 8 instructors between September 1 and December 28, 2021, during the academic semester. Socrative and Plickers apps have been found to contribute to: better learning ([phi]* = 8.94, p [less than or equal to] 0.01); developing cognitive motivation among students resulting from diverse learning resources used with apps ([phi]* = 7.6, p [less than or equal to] 0.01); convenience of learning activities because students can work with the app both in the classroom and at home ([phi]* = 13.66, p [less than or equal to] 0.01); improved digital competence ([phi]* = 2.4, p [less than or equal to] 0.05). The research findings can be used by instructors in universities and secondary schools. Since didactic opportunities offered by mobile apps are quite significant, and considering other positive results of their use, this technology may be considered as an important tool for training young people and strengthening their cognitive motivation.

The study is aimed at developing methodological tools for assessing the innovation potential of transport and logistics complex (TLC), which is the basis for forming strategic decisions regarding innovative development and increasing the competitiveness of transport and logistics structures of the country. Based on the analysis of the effects from the introduction of innovations in the structure of technologically advanced TLCs, the criteria of innovativeness and types of TLCs have been identified, which makes it possible to assess the level of object’s lagging behind the leaders and the scale of the required innovative transformations. Because of a comparative analysis of existing methods and methodologies for assessing the objects’ potential, some solutions applicable to the TLC assessment were identified, taking into account the specifics of its functioning and its difference from such objects as an enterprise or a region. At the same time, at least three aggregated approaches to the assessment of innovation potential were compared: resource, internal and resultant, which allowed to achieve a higher reliability of the developed methodology. Based on the integrated approach, a multilevel decomposition of the TLC innovation potential was made on four components: resource, management, performance, infrastructure. The authors also identified components and determined the assessment indicators of each of the components, which are assessed in the framework of the methodology developed by the authors, representing the synthesis of the elements of the studied methods. According to the methodology for assessing the TLC innovation potential by means of graphic visualization, analogy method and multidimensional scaling, the provision of the complex with resources for innovative development and infrastructure capabilities for the introduction of innovative technologies are displayed. Unlike the existing universal tools for assessing the objects’ potential, the methodology takes into account the specifics of transport and logistics structures and the significance of the evaluation elements, as well as the need to assess the infrastructural component of the complex potential. The results of approbation of the methodology on the example of the Multipurpose Sea Cargo Complex Bronka (MSСC Bronka, St. Petersburg, Russia) with the use of systematization, interviewing, economic-mathematical and expert methods have not revealed any limitations in the use of the methodology. The tools presented in the work can be used to develop the strategy and policy of innovative development of TLCs of different types, scale and specialization.

Accurate tracking of the same neurons across multiple days is crucial for studying changes in neuronal activity during learning and adaptation. Advances in high-density extracellular electrophysiology recording probes, such as Neuropixels, provide a promising avenue to accomplish this goal. Identifying the same neurons in multiple recordings is, however, complicated by non-rigid movement of the tissue relative to the recording sites (drift) and loss of signal from some neurons. Here, we propose a neuron tracking method that can identify the same cells independent of firing statistics, that are used by most existing methods. Our method is based on between-day non-rigid alignment of spike-sorted clusters. We verified the same cell identity in mice using measured visual receptive fields. This method succeeds on datasets separated from 1 to 47 days, with an 84% average recovery rate.

Co-precipitation of biopolymers into calcium carbonate crystals changes their physicochemical and biological properties. This work studies hybrid microcrystals of vaterite obtained in the presence of natural polysaccharides, as carriers for the delivery of proteins and enzymes. Hybrid microcrystals with dextran sulfate, chondroitin sulfate, heparin, fucoidan, and pectin were obtained and compared. The impact of polysaccharides on the morphology (particle diameter, surface area, nanocrystallite and pore size), polysaccharide content and surface charge of hybrid microcrystals was studied. Only microcrystals with fucoidan and heparin exhibited antioxidant activity against •ОН radical. The surface charge and pore size of the hybrid microcrystals affected the sorption of albumin, catalase, chymotrypsin, mucin. A decrease in the catalytic constant and Michaelis constant was observed for catalase sorbed on the hybrid crystals. The biocompatibility of microcrystals depended on the nature of the included polysaccharide: crystals with sulfated polysaccharides increased blood plasma coagulation but not platelet aggregation, and crystals with dextran sulfate had the greatest cytotoxicity against HT-29 cells but not erythrocytes. Hybrid microcrystals with all polysaccharides except chondroitin sulfate reduced erythrocyte lysis in vitro compared with vaterite crystals. The obtained results enable to create novel carriers based on hybrid vaterite crystals with polysaccharides, beneficial for the delivery of protein drugs.

The Moodle learning management system (LMS) is currently successfully integrated into the educational activities of higher education. This article discusses the peculiarities of Moodle LMS and elements of training courses in it. The research aims at highlighting the assessments of opportunities and disadvantages of the Moodle LMS from the positions of undergraduate students and teachers in the quarantine conditions and before them. The research was conducted at the Kozma Minin Nizhny Novgorod State Pedagogical University in 2018/2019 and 2019/2020 academic years at the Faculty of Management, Social and Technical Services. The research involved teachers and first to fourth year full-time undergraduate students. The analysis of both positive and negative feedback from undergraduate students and teachers about working in a normal learning model and in self-isolation has been presented. Interactive elements of the learning environment have been considered and the research results of students' attitudes to its various elements have been described. The methods and potential use of Moodle by means of different electronic devices have been explored, and the usage frequency of these devices during quarantine has been analyzed. The analysis of negative feedback about the students' and teachers' work in the system during the pandemic has been given. Control methods in the Moodle environment, testing, and authors' control methods have been studied. In the survey, the respondents evaluated the basic functions of the Moodle LMS, popular in teaching, gave a description of the advantages and disadvantages of this system and evaluated potential areas of system development in educational practice of the University. The conclusions have been made about the need to implement blended learning using the Moodle LMS, which combines various types of distance and classroom work for students.

Competency beliefs are beliefs about individuals' ability to perform significantly regarding events that may affect their lives. People with higher levels of teaching competency beliefs do not escape from the experiences they have just encountered and have the determination to complete their actions successfully. Having general competencies of teachers and teacher candidates is of key importance in terms of creating more efficient and improving educational processes. Therefore, this study aimed to provide a systematic review on structure, criteria, and levels of professional teaching competence levels of preservice primary school teachers based on a comprehensive literature review. The study employs qualitative research methodology including document analysis and related content analysis. Various results were obtained from this study and the results were discussed with relevant literature and future implications are provided.

The work deals with the development of an approach to the determination of chlortetracycline, which combines the preconcentration of the analyte with its subsequent determination by capillary zone electrophoresis. The conditions that ensure the lowest value of the limit of determination for chlortetracycline in aqueous solutions using a Kapel-105M capillary electrophoresis system (Lumex, Russia) are determined, i.e., temperature, time and pressure of sample injection, background electrolyte composition, and detection wavelength. It is shown that the stability of a chlortetracycline solution is maximum at a storage temperature of 0.5°Ð¡ in the absence of buffer systems or in using a dilute ammonium acetate buffer solution. It is found that the recovery of chlortetracycline by strongly acidic cation exchangers KU-1, KU-2 is higher compared to that by KB-4 and KB-4P2, bearing weakly acidic functional groups. The conditions under which the recovery of the analyte by KU-1 from a phosphate buffer solution is about 90% are determined., Author(s): A. I. Gorodilova [sup.1] , E. L. Lebedeva [sup.1] , Ju. S. Petrova [sup.1] , L. K. Neudachina [sup.1] Author Affiliations: (1) grid.412761.7, 0000 0004 0645 736X, Ural Federal [...]