Scientific Research Institute Research Articles

К истории открытия и изучения феномена Окло

The paper dwells on the brief history of the discovery and studies of the Oklo uranium deposit, a natural nuclear reactor, is considered. It was shown by French specialists in 1972. The discovery was made by studying the isotope ratio 235U§238U in ore. Several years earlier, such research was carried out at the All-Union Scientific Research Institute of Mineral Raw Materials (VIMS). Unfortunately, the application for the discovery of domestic scientists was rejected.

ACHIEVED RESULTS AND PERSPECTIVES FOR FURTHER DEVELOPMENT OF SMALL AND MEDIUM-SIZED ENTERPRISES: STATISTICAL FINDINGS AND ANALYSIS

Small and medium-sized enterprises are a key part of every national economy and represent a factor of economic and social stability. In particular, entrepreneurial organizations are recognized as drivers of economic development, because they encourage the introduction of new technologies and have a direct impact on the level of investments and aggregate demand in terms of macroeconomic indicators. Also, this type of organizations contributes to solving the problem of unemployment and unequal distribution of wages. The need for strategic support and development of small and medium enterprises at the state level is permanent. In the past, these entities have been hit by the pandemic caused by the Covid-19 virus, inflation and digitization. The subject of the paper is the results review of the small and medium-sized enterprises development in Serbia, as well as the perspective of their further growth. Taking into account the effect of quality standards on business results, the connection of small and medium-sized enterprises with scientific and research institutions, but also the connection between the same organizations on the market, the authors propose certain improvements for their development. The key elements are based on the adequate and correct diagnosis of the mentioned connections. The research sample was purposive, which included companies in each of the 5 regions of the Republic of Serbia (n=112). The importance of quality standards and cooperation with faculties and scientific research institutions was established. It has been proven that the biggest obstacles in the development of the business of small and medium-sized enterprises are administrative procedures, as well as fiscal appropriation, and that the biggest impact on future business prospects is the adopted quality standard, investment in modern equipment, innovation, new knowledge and the introduction of new production lines.

Корневая гниль яровой пшеницы в условиях Зауралья, варианты оперативной защиты

Abstract. Root rot is a harmful and widespread disease of cereal crops. In the conditions of the Urals, Siberia, and Northern Kazakhstan, its causative agents are various species of fungi of the genus Fusarium and the fungus Bipolaris sorokiniana. The purpose of this study was to comparatively determine the effectiveness of microbiological, chemical and combined protection of spring wheat seeds. Field experiments were carried out on the experimental field of the Kurgan Scientific Research Institute of Agriculture – branch of the Ural Federal Agrarian Scientific Research Centre of the Ural Branch of the Russian Academy of Sciences (Kurgan SRIA – branch of FSBSI UrFASRC, UrB of RAS) in 2019, 2021, 2022. Scientific novelty lies in the determining the competitiveness of various methods of protecting spring wheat seeds in the conditions of the Trans-Urals within the framework of modern cultivation technology. The methods used are generally accepted in the Russian Federation. Results. In conditions of almost annual occurrence of negative natural phenomena for the growth and development of plants (droughts, frosts, sudden changes in temperature, dry winds, etc.), the use of seed treaters can be an additional stress for plants; the presence of the effect of shortening the underground internode can negatively affect field germination culture. To reduce these risks, as well as the pesticide load, we recommend using a combined method of seed protection. It involves the use of a mixture of a bacterial fungicide based on Bacillus subtilis with a chemical disinfectant at half the consumption rate. At the same time, the level of control of phytopathogens is maintained, there is no retardant effect, and economic efficiency is not inferior to the level of using a two-component chemical seed protectant (113–114 %). Chemical protection of seeds reduced the development of root rot pathogens by 63–72 %. The use of combined protection provided good control of phytopathogens, including the dominant fungi Fusarium. The predominant species from the genus Fusarium were the highly dangerous F. oxysporum, F. graminearum, F. sporotrichioides.

The humic acids influence on the quantity and quality of table grape varieties under the Absheron peninsula conditions

Humates are widely used in viticulture, including ecological viticulture. Humic stuffs benefit the qualitative and quantitative indicators of the grape harvest and can reduce the use of synthetic fertilizers and pesticides. This article presents the results of tests on the foliar application of various doses of the “Rostok” fertilizer in the conditions of the Absheron zone of Azerbaijan on local varieties of table grapes – traditional Tabrizi and a selection variety of Scientific Research Institute of Viticulture and Wine-making Ganjavi, grown in the Ampelographic collection of the institute, located on the Absheron peninsula. Fertilizer was applied in three doses – 0.5; 1.0 and 1.5 liter per hectar. Under the influence of the fertilizer, such elements of yield as the vigor of shoot growth, the number of opened buds, fruitful shoots, the number of berries in a bunch, the weight of a bunch, as well as the sugar content of berry juice increased. Fertilizer application had a positive effect on eliminating signs of leaf chlorosis. No toxic effect on the vegetative organs of the grape plant, on its development, or on the beneficial insect fauna of the vineyard was noted. Based on the data obtained, as well as calculations of economic efficiency, a four-fold application of fertilizer (twice before flowering, once after, once during veraison) at the rate of 1 liter per hectare was recommended for widespread use in wine-growing farms.

INVESTIGATING THE KEY LIMITATIONS AND IMPROVEMENTS INFLUENCING THE COMPETITIVE SUCCESS OF SOUTH AFRICA’S ORANGER EXPORTERS.

The objective of identifying constraining factors is to reveal that the key obstacles affecting the competitiveness of South Africa's domestic orange industry include issues such as the "quality of unskilled labor," "trust in the honesty of politicians," "electricity suppliers," "health," "South Africa’s land reform policy," "South Africa’s BEE policy," and "crime." Additionally, challenges related to the lack of quality infrastructure, bilateral agreements with trading countries, and poor performance of ports relative to their global counterparts have been identified. The constraining factors were ranked, with the top issues aligning closely with the industry's current challenges. In contrast, enhancing factors play a crucial role in boosting industry competitiveness in both domestic and international markets. The key elements contributing positively include the availability of unskilled labor, local input suppliers, scientific research institutions, technological quality, the cost of unskilled labor, soil conditions, and the sustainability of local input suppliers. Attention to maintaining and improving these factors is crucial for the sustained competitiveness of the South African orange sector.

Peptidergic and adenosinergic drugs administration to comatose patients caused by alcohol consumption on early hospital period

Introduction. Medical care for patients diagnosed with the toxic effect of ethanol (according to ICD-10 code T51.0) it turns out to be in specialized toxicological centers or in emergency departments of multidisciplinary hospitals. The purpose of this study was to study the effectiveness of the drug моликсан® (molixаn) at different levels of medical care for patients diagnosed with the toxic effect of ethanol. Material and method. 128 patients were included in the study, of which 76 patients were taken to the emergency department of St. Petersburg State Medical Institution "Alexandrovskaya Hospital" and 52 patients were taken to the intensive care unit No. 11 of the St. Petersburg Scientific Research Institute of Emergency Medicine named after I.I. Dzhanelidze. All patients met the inclusion criteria: age 18–60 years; impaired consciousness of alcoholic genesis 21–30 points on the Glasgow–Pittsburgh coma scale (PBSS: Pittsburg Brain Stem Score, Kelsey S.F., et al. 1991); ethanol concentration in the blood is more than 2.5%. 72 patients were included in the моликсан® group, 56 patients in the Placebo group. Results. The use of the drug моликсан® has a positive effect on the dynamics of restoring the level of consciousness, which is reflected in higher values of the Glasgow–Pittsburgh scale after 1, 3 and 6 hours from the start of therapy (p<0.01), reducing the period of stay of the patient in a coma from 150 [75; 178] minutes to 60 [50; 161.5] minutes (p<0.05) and restoration of consciousness to a clear level after 3.5± 0.3 hours (p<0.05).It was also revealed, that in the group of patients using моликсан®, normalization of heart rate (p<0.05) and a decrease in the frequency and severity of tremor (p<0.05) were noted. The hepatoprotective efficacy of моликсан® was shown, which manifested itself in a decrease in ALT, AST, GGTP, alkaline phosphatase, total and direct bilirubin (p<0.001). Limitations. The clinical efficacy of моликсан® in the toxic effects of severe ethanol was carried out in patients with depression of consciousness and elevated levels of ALT, AST, GGTP, alkaline phosphatase, total and direct bilirubin, which indicated the presence of alcoholic hepatopathy. Conclusion. The conducted study showed the expediency of using моликсан® at a dosage of 3.0 mg/kg intravenously with the toxic effect of ethanol of moderate and severe severity of the disease.

The analysis of the stock of the Republican scientific-technical library

Nowadays, the investigation of the questions of the scientific management of library stocks has gained great urgency (increased in importance). The tasks of increasing the efficiency of the formation and usage of library stocks highlight the necessity for systematic research into their peculiarities and tendencies of development. This article analyzes the peculiarities and tendencies of the development of the stocks of the Republican Scientific-Technical Library of Lithuania's Scientific-Research Institute of Scientific-Technical Information and Technical-Economic Research. The multifaceted research of the stocks should enable the improvement of library processes and information-bibliography services. The research carried out allows for the following conclusions: The Republican Scientific-Technical Library, by volume of stocks, is the largest library among scientific libraries of the republic. Its stocks total 40.4 percent of the whole stock of the United Republican Information Stock (URIS). The library is the main library in URIS, which organizes the stocks of special documentation and literature. A peculiarity of the stock is that special technical documentation and literature have predominated in the stock since 1970, totaling approximately 90.1 percent of the entire stock. The basic stocks are in the Republican Scientific-Technical Library in Vilnius, which total 87.6 percent of the entire stock. The superextensive growth of the special technical documentation and literature during 1967-1970 is accounted for by the organization of the departments of patents and technical documentation (as per the decision of the Council of Ministers of Lithuania). At present, the growth of the stock has stabilized. Every year during 1975-1982, the library received an average of 850.2 thousand documents. The growth of the quantity of the stocks, completion on the whole, and the growth of the stocks of special kinds of scientific-technical literature and documentation may be defined by a mathematical curve, which shows that from a certain moment, the speed of the growth of the volume of the stocks slows down due to limited resources.

A Review of the Research on the Influencing Factors of Enterprise Key Core Technology Breakthrough

The breakthrough of key core technology is a theoretical and practical strategic issue to realize the rise of the country. This paper analyzes the concept of key core technology and its breakthrough and analyzes its characteristics. Based on the perspective of participants, this paper summarizes the influencing factors of key core technology breakthroughs in enterprises: internal and external enterprises, universities and scientific research institutions, and government. This paper expands the relevant research on key core technology breakthroughs and provides inspiration for enterprises to carry out key core technology research and breakthrough practices.

The effect of intellectual property rights on firm performance in service firms: the role of process and organizational innovation

PurposeThis paper aims to examine the effects of intellectual property rights (IPRs) on firm performance, considering the mediating effect of process innovation and the moderating effect of organizational innovation. Additionally, this study investigates both the direct and indirect effects of IPRs on firm performance.Design/methodology/approachWe employed partial least squares structural equation modeling (PLS-SEM) to examine proposed hypotheses. Our analysis attempted to analyze 3,750 Korean firms sourced from the Science and Technology Policy Research Institute (STEPI).FindingsProcess innovation mediates the relationship between IPRs and firm performance, and organizational innovation moderates the relationship between IPRs and process innovation. As a result, process and organizational innovation positively and indirectly affect firms’ financial performance. Also, IPRs can be regarded as a crucial resource for service firms, contributing to enhancing their performance.Research limitations/implicationsThe results of this study imply that IPRs can act as valuable intellectual resources for firms, improving financial performance. The mediating role of process innovation in the relationship between IPRs and firm performance highlights the significance of process innovation as a principal resource applicable to both the service and the manufacturing industries. Additionally, this study reveals that organizational innovation plays a vital role in determining firm performance by moderating the relationship between IPRs and process innovation. For the limitation of this study, it is important to acknowledge that the research primarily focuses on examining firms’ internal resources, while innovation activities can be significantly influenced by external knowledge resources as well. To address this limitation, future research should consider integrating the influence of external knowledge resources to provide a more well-rounded perspective on the relationship between IPRs, innovation, and firm performance.Practical implicationsThis study holds two significant practical implications. First, from a corporate management perspective, service firms can improve their financial performance by developing or improving process innovations. This underscores the importance of investing in and fostering process innovation within an organization to achieve better financial outcomes. Second, from the corporate managers’ perspective, organizational innovation is crucial in improving firm performance, particularly when combined with IPRs and process innovation. This suggests that a holistic approach to innovation, encompassing both organizational and process-oriented initiatives, can lead to more substantial positive effects on firm performance. Finally, managers should proactively manage and regulate IPRs at various organizational levels, especially in the rapidly evolving digital landscape. By safeguarding and strategically leveraging their IPRs, companies can position themselves advantageously and capitalize on the opportunities presented in the digital realm.Originality/valueThis study shows that firm innovations can dynamically shape the relationship between IPRs and firms’ performance. This highlights the significant potential for firms to leverage their intellectual resources strategically to create novel and competitive products or services. Adopting a resource-based view, this study suggests that firms can enhance their competitive advantage and overall performance by effectively utilizing and collaborating with IPRs and innovations.

Chronic systolic heart failure: association of remodeling of the right heart and renal dysfunction with cardiac arrhythmias

Introduction. Ischemic (ICMP) and dilated cardiomyopathy (DCMP) are the leading causes of chronic heart failure (CHF) with the most frequent indication for heart transplantation. The similarity of these diseases consists in the widespread and high mortality rate due to pathological remodeling of both the left and right chambers of the heart, which is accompanied by the progression of CHF, increasing the risk of sudden cardiac death.The purpose of the study. To study the relationship of systolic function of the left ventricle (LV) with remodeling of the right heart, renal dysfunction and their relationship with cardiac arrhythmia.Materials and methods. The study included 72 patients with CHF with reduced ejection fraction (CHFrEF), who were being treated at the N. V. Sklifosovsky Scientific Research Institute of EM in connection with worsening CHF. Group I consisted of 48 patients with DCMP; group II – 24 patients with ICMP.Results. LV ejection fraction (LV EF) in patients of both groups was <30 %, but it was significantly lower in group I (p=0.001). The EF of the right ventricle (RV) in group I was low and amounted to 24.6 [19.5; 28.5]%. In group I, the volume of the right atrium (PP) and the size of the pancreas correlated with LV EF (r= –0.489, p=0.015 and r= –0.410, p=0.005, respectively); each subsequent increase in the volume of right atrium (RA) by 1 ml increased the likelihood of atrial fibrillation (AF) by 1.018 times (OR: 1.018, 95 % CI: 1.0042–1.033, p=0.011). The estimated glomerular filtration rate (eGFR) <60 ml/min/1.73 m2 increased the chances of ventricular tachycardia (VT) by 9.5 times (OR: 9.5, 95 % CI: 2.32–38.87, p=0.002). Each subsequent decrease in eGFR by 1 ml/min/1.73 m2 increased the chances of developing VT by 1.03 times (OR: 0.967, 95 % CI: 0.937–0.988, p=0.036)].Conclusions. In patients with CHFrEF, regardless of the etiology, a decrease in LV EF leads to structural and functional changes in the right parts of the heart. In individuals with DCMP, an increase in RA volume by 1 ml increases the likelihood of AF by 1.018 times; a decrease in eGFR by 1 ml/min/1.73 m2 increases the chances of developing VT by 1.03 times.

Клинические и гистологические особенности быстропрогрессирующего гломерулонефрита у детей

Rapidly progressive glomerulonephritis (RPGN) associated with antineutrophil cytoplasmic antibodies (ANCA) is complicated in children due to the severity of the disease and the lack of clear consensus on treatment. The purpose of this research was to analyze the course of RPGN and its outcomes in children depending on the morphological basis after the results of nephrobiopsy. Materials and methods used: a single-center cohort retrospective study had been carried out as medical records’ analysis of patients diagnosed with RPGN aged 1 to 18 y/o who were observed at the Nephrology Department of the Scientific Research Institute of Pediatric Nephrology and Urology with the National Medical Research Center for Children’s Health (Moscow, Russia) in 2015-2024. Renal survival was assessed for different clinical and morphological options, the Renal Risk Score was assessed then. Results: 18 (7 m/11 f) were identified of Me age of diagnosis 14.1 [9.9; 15.5] y/o. ANCA was detected in all patients: pANCA in 12 (66.7%, 95% CI 40.9-86.7) and cANCA in 6 (33.3%, 95% CI 13.3-59.0) plus a single patient had a rare combination of dual positivity for anti-GBM and MPO-ANCA. Extrarenal manifestations were described in 10 (55.6%, 95% CI 30.8-78.5). Morphological subclassification of focal segmental glomerulosclerosis was detected in 5 (31.3%, 95% CI 11-58.7), extracapillary proliferation in 8 (50%, 95% CI 24.7-75.4), sclerosing in a single patient (6.3%, 95% CI 0.2-30.2) and the mixed one in 2 cases (12.5%, 95% CI 1.6-38.4). The median follow-up period was 21.6 [12.6-35.3] months, the outcome of stage 5 chronic kidney disease (CKD) was observed in 4, overall renal survival after 12 months was 94.4% (95% CI 84.4-100.0) and 86.6% (95% CI 70.6-100.0) after 36 months. An increase in the relative risk of achieving stage 5 CKD in patients with extrarenal (general) manifestations was detected as 1.67 times (95% CI 1.01-2.77) and 10.5 times (95% CI 1.46-75.42) in those receiving dialysis. Differences in the median glomerular filtration rate at onset were revealed in patients with extrarenal manifestations and isolated glomerulonephritis (p=0.004). Conclusion: when choosing treatment tactics for RPGN in children and assessing renal prognosis, it is necessary to take into consideration the results of a morphological study and the degree of damage to the renal tissue.

Scientific misconduct responsibility attribution: An empirical study on byline position and team identity in Chinese medical papers.

The primary objective of this inquiry was to explore the nexus between authorship attribution in medical literature and accountability for scientific impropriety while assessing the influence of authorial multiplicity on the severity of sanctions imposed. Probit regression models were employed to scrutinize the impact of authorship on assuming accountability for scientific misconduct, and unordered multinomial logistic regression models were used to examine the influence of authorship and the number of bylines on the severity of punitive measures. First authors and corresponding authors were significantly more likely to be liable for scientific misconduct than other authors and were more likely to be penalized particularly severely. Furthermore, a negative correlation was observed between the number of authors' affiliations and the severity of punitive measures. Authorship exerts a pronounced influence on the attribution of accountability in scientific research misconduct, particularly evident in the heightened risk of severe penalties confronting first and corresponding authors owing to their principal roles. Hence, scientific research institutions and journals must delineate authorship specifications meticulously, ascertain authors' contributions judiciously, bolster initiatives aimed at fostering scientific research integrity, and uphold an environment conducive for robust scientific inquiry.

Does innovative city pilot policy improve carbon reduction? Quasi-experimental evidence from China

A new direction for China in exploring sustainable development is the Innovative City Pilot Policy (ICPP), which provides policy guidance for accelerating carbon peaking and carbon neutrality by reducing carbon emissions. With data from 282 cities spanning 2006–2018, this paper examines ICPP's effect on carbon intensity (CI) through a multi-period difference-in-differences (DID) model, as well as exploring the mediating effect, moderating effect, heterogeneity, and spatial spillover effects. The results show that ICPP reduces CI significantly by enhancing technology innovation (TI), and when industrial structure (IS) is added, the effect of ICPP is expanded. The ICPP gains additional advantages in reducing CI by optimizing the efficiency of resource allocation (ERA). Compared with the concentration of human capital (HCL), the amount of scientific research institutes (SRI) has a slightly greater moderating effect. ICPP impacts considering location, size, and hierarchy heterogeneity. ICPP has a greater impact on mitigating CI in the western, larger size, and provincial capital cities. There are positive spillover effects of the ICPP on neighboring CI. To support the idea that ICPP can effectively contribute to CI reduction, this paper provides empirical evidence and theoretical guidelines.

Влияние биологических регуляторов роста на содержание фотосинтетических пигментов Campanula alliariifolia

Abstract. The purpose is to study the effectiveness of the action of the natural signaling molecule salicylic acid (SA) and Bacillus subtilis (Bs) on the ratio of photosynthetic pigments (PhSP) in plant materials (leaves) of Campanula alliariifolia Willd. and its decorativeness. Methods. Using spectrophotometric techniques, an analysis was carried out of the dynamics of the content of pigments (chlorophyll a, chlorophyll b and carotenoids) under the influence of a strain of the bacterium Bacillus subtilis, isolated at the Bashkir Scientific Research Institute of Agriculture of the Federal Research Center of the Russian Academy of Sciences (Ufa) from the arable soil layer of the Republic of Bashkortostan, and its combination with salicylic acid during the growing season. Scientific novelty. The influence of the B. subtilis strain separately and together with salicylic acid on the physiological parameters and decorative properties of Campanula alliariifolia in the conditions of the Bashkir Cis-Ural was studied. Results. The content and ratio of PhSP in dynamics (phases of budding, flowering and fruiting) were analyzed. It was revealed that inoculation of C. alliariifolia plants with Bacillus subtilis significantly increases the amount of carotenoids during the flowering phase. During the fruiting phase, the maximum content of PhSP was noted in the Bs + SA variant of the experiment. Two-factor analysis of variance showed that the significant influence of factor A (vegetation phase), factor B (different experimental options), and the degree of total influence of two factors (A × B) on the content of PhSP in samples of campanula leaves is statistically significant for the studied indicators. It was found that inoculation with the B. subtilis strain maximized indicators such as the abundance of flowering and the density of bellflower inflorescences, thereby improving the decorativeness of C. alliariifolia in the conditions of the Bashkir Cis-Ural.

Performance testing of a novel short axis photomultiplier tube for the HUNT project

Photomultiplier tubes (PMTs) with large-area cathodes are increasingly being used in cosmic-ray experiments to enhance detection efficiency. The optical modules (OMs) of the High-Energy Underwater Neutrino Telescope (HUNT) have employed a brand new N6205 20-inch microchannel plate photomultiplier tube (MCP-PMT) developed by the North Night Vision Science & Technology (Nanjing) Research Institute Co. Ltd. (NNVT). In order to make the 20-inch PMT fit into the 23-inch diameter pressure-resistant glass sphere, NNVT improved the internal structure of PMT and shortened the height of PMT by more than 10 cm. The first batch of these PMTs has been delivered for preliminary research work. This paper describes a specific PMT testing platform built for the first batch of 15 MCP-PMTs, and some performance parameters of PMT, such as peak-to-valley ratio, TTS and nonliniearity, are measured. The measurement results show that the new PMT still has good performance and can meet the requirements of HUNT project.

Cultural and physiological characteristics of <i>Sinorhizobium fredii</i> strains selected by the All-Russian Scientific Research Institute of Soybean and their ability to produce vitamins В<sub>9</sub> and В<sub>12</sub>

Cultural and physiological characteristics of <i>Sinorhizobium fredii</i> strains selected by the All-Russian Scientific Research Institute of Soybean and their ability to produce vitamins В<sub>9</sub> and В<sub>12</sub>

Methods for Implementing Tactile Sensations in Virtual Space by Integrating Physical Objects with Their Computer Models

The paper presents original methods and approaches for integrating, from the user's point of view, three-dimensional virtual models visible to them in a virtual reality headset, and their physical prototypes. This allows for the addition of some important elements of physical reality to the virtual environment, such as tactile and muscle-motor sensations. Developed solutions are based on the use of such wireless devices as HTC Vive Trackers, which determine their position and orientation in space, and can be placed on various objects of the real world. An original approach to making a tracking system by means of two HTC Base Stations and several Vive Trackers with selecting one anchor element is proposed, as well as new methods for real-time integration of physical reality objects with their virtual models by using functional control schemes with own blocks for trackers. Based on methods and approaches proposed in this work, software modules were implemented. Approbation of these modules in the VirSim virtual environment system, which was developed in Scientific Research Institute for System Analysis of the Russian Academy of Sciences, showed that the solutions developed are adequate and effective, and can have practical application in virtual environment systems and training complexes.

The acquisition of foreign science and technology literature resources in specialized libraries amidst the challenges posed by science and technology blockade

Confronted with significant challenges in procuring foreign scientific and technological literature resources due to a global science and technology blockade, professional libraries are facing severe limitations imposed by the United States on China. These export control measures have severely hampered domestic scientific research institutions and universities from accessing foreign scientific and technological documents, thereby impeding China's progress in the field of scientific and technological innovation. To effectively address this predicament and enhance the ability to secure resources of foreign language scientific and technological literature, professional libraries should focus on the following five aspects: Firstly, diversify funding sources while expanding channels for procuring foreign periodicals; Secondly, increase procurement of English-language scientific and technological literature from non-American countries while organizing and categorizing these materials; Thirdly, strengthen access to non-English language scientific journals; Fourthly, promote collaborative construction and sharing of scientific and technological documents; Fifthly, develop localized versions of foreign digital resources. Ultimately, it is emphasized that bolstering one's own capabilities is key to overcoming barriers in accessing scientific and technological literature. Therefore, China should prioritize national-level development of digital academic platforms.

Nomenclatural standards of spring barley cultivars bred by the Volga Scientific Research Institute of Selection and Seed-Growing named after P.N. Konstantinov

The article discusses the cultivars of spring two-row barley ‘Povolzhsky 22’, ‘Povolzhsky 49’, ‘Povolzhsky Yantar’, and ‘Povolzhsky Priz’ bred by the Volga Scientific Research Institute of Selection and Seed-Growing named after P.N. Konstantinov, a branch of the Samara Federal Research Center of the Russian Academy of Sciences. The article describes the morphological, biological and economic characteristics of the cultivars. To prepare herbarium specimens of nomenclatural standards, plant material of cultivars ‘Povolzhsky 22’, ‘Povolzhsky 49’, and ‘Povolzhsky Yantar’ was used. These cultivars are represented by one herbarium sheet each and duplicated by 2, 1 and 3 sheets, respectively. A herbarium specimen of cultivar ‘Povolzhsky Priz’ has also been prepared, although State Variety Testing of the cultivar was not completed in 2023. This herbarium specimen will be registered as the nomenclatural standard of the cultivar when the latter will be included in the State Register.All herbarium specimens include whole plants at the milky ripeness stage, ears at the waxy ripeness stage, and grain samples. Appropriate plants were collected in Pushkin, in the fields of the “Pushkin and Pavlovsk Laboratories of VIR” (St. Petersburg), and ears and grains were obtained from the Volga Scientific Research Institute of Selection and Seed-Growing named after P.N. Konstantinov (Samara Province).All materials used for preparing herbarium specimens of a cultivar are the offspring of plants obtained as a result of individual family selection. Herbarium specimens of nomenclatural standards, their duplicates and herbarium specimens of cultivar ‘Povolzhsky Priz’ were prepared in accordance with the recommendations of the International Code of Nomenclature of Cultivated Plants (ICNCP), registered in the VIR Herbarium database and transferred to the Herbarium of Cultivated Plants of the World, their Wild Relatives and Weeds (WIR) at the National Center for Plant Genetic Resources.

Neurological outcomes and mortality of hyperoxaemia in patients with acute brain injury: protocol for a systematic review and meta-analysis

IntroductionOxygen is frequently prescribed in neurocritical care units. Avoiding hypoxaemia is a key objective in patients with acute brain injury (ABI). However, several studies suggest that hyperoxaemia may also be...