bluuebunny/crossref_metadata_2025 huggingface dataset:
Effectiveness of messaging apps in emergency room-online survey study
Authors: Ghodke Ashok , Gunjotikar Aditya , Vatkar Arvind , Kale Sachin , Yadav Praveen , Mandal Shobhan , Verma Ashmit , Sonali  , Kale Sachiti Sachin
Published: May 2023

Background: Medical professionals communicate effectively and conveniently using mobile communication applications (Apps). With clinical details being transmitted quickly among multidisciplinary teams, the potential improvements in patient care and education are significant. However, there are also moral and legal concerns with sharing patient data in this manner.  This study aimed to quantify and categorize how often medical staff members used communication apps in clinical settings, their role in patient care, their knowledge of and attitudes toward safety, and the main advantages, potential drawbacks, and policy implications.
Methods: A 16-question survey with an anonymous response was distributed to our 1500 bedded hospital's medical staff. The study gathered information on the demographics of the respondents, how they used communication apps in clinical settings, how they felt about such apps, how safe they thought their data was, and why they chose one app over another. The study period was January to March 2023.
Results: From students to consultants, communication apps are widely utilized with WhatsApp being the most popular one. Although all respondents thought these apps were useful for swiftly exchanging information in a clinical context, they were all concerned about the privacy consequences. Overall, 62.5% use WhatsApp in the ER, and 70.8% found that it has helped reduce the communication gap between junior and senior orthopaedic surgeons.
Conclusions: Messaging apps help medical professionals communicate more effectively, but their use poses compliance difficulties, particularly with privacy laws. Hence, a user-friendly design and privacy-compliant must be given top priority when creating apps.
The mechanism of "restriction - guarantee" in case of termination of an employment contract at the employer’s initiative: Russian and foreign experience
Authors: Dzhidzhavadze Levan G.
Published: May 2023

The article analyzes the grounds for termination of an employment contract on the initiative of an employer in the countries of the Anglo-Saxon and Romano-Germanic legal families. The issue of maintaining the balance of interests of the employee and the employer through the mechanism of «restriction-guarantee» is investigated. Based on the information received, the author identifies models of legal regulation and makes reasonable conclusions. In addition, proposals are being made to improve Russian legislation based on the reception of the positive experience of foreign countries.
The distinction between giving a bribe and provocation of a bribe in the criminal law of Russia
Authors: Titova Anna S.
Published: May 2023

The article deals with the issue of distinguishing between two criminally punishable acts that have similar signs of the elements of the crime - giving a bribe and provocation of a bribe. The author analyzes the objective and subjective signs of these elements of the crime. Based on the analysis of bribery and provocation of a bribe, the signs of difference and similarity of these crimes are highlighted. The author concludes that the differentiation of the studied elements of crimes is based on the differences in their objective and subjective characteristics. However, the author points out that when qualifying a criminal act with the external similarity of the crimes under consideration by the law enforcement officer, the key attention should be paid to the distinctive features contained in the subjective side of these acts. In order to properly qualify criminally punishable acts containing signs of provocation of a bribe, the author recommends making appropriate amendments to the Resolution of the Plenum of the Supreme Court of the Russian Federation No. 24 of July 9, 2013 "On Judicial practice in cases of bribery and other corruption crimes".
The main directions of the study of the psychological specifics of distance forms of professional activity realization
Authors: Karpov Alexander A. , Volchenkova Anastasia A.
Published: May 2023

The article presents materials that reveal the psychological specifics of distance forms of professional activity. It is shown that it can be characterized from the standpoint of the study of a new subject-information class. The provisions on transformations in the subsystems of professionally important qualities (PIQ) of the different types of activity included in this class, as well as provisions on the specifics of distance forms of educational activity, including in the context of organizational learning and in the context of professiogenesis and the problem of learning in labor psychology, are formulated.
Specificity of sales manager’s professional activity in the conditions of digitalization
Authors: Selezneva Ksenia A. , Zhalagina Tatyana A.
Published: May 2023

Digitalization has introduced specific requirements for sales managers, their competencies and mechanisms of mental regulation of professional activity. Currently, organizations need sales managers who have not only basic knowledge of information processing, business communication, but also skills that meet the requirements of modem trends, in particular digital skills. The scientific significance of the problem of sales manager in a digital society is related to the field of knowledge about the mechanisms and factors of positive and negative impact on the professional development of new forms of work. Professional activity of sales managers in modern social conditions needs new forms of psychological accompaniment many customer, relationship management, some lifestyle changes due to digitalization.
Partiality of emotional intelligence of medical workers depending on work experience
Authors: Pervitskaya Alyona M.
Published: May 2023

The article presents the results of an empirical study of the emotional intelligence of nursing staff. Emotional intelligence is considered as a professionally important quality of nurses. The connection between the development of emotional intelligence and the success of the activities of nursing staff is proved. Using the Student’s t-test (for independent samples), significant differences were established for most criteria between medical workers with different work experience.
The relationship between the level of subjective control and ego-states in subjects of the educational process
Authors: Tokareva Valentina B.
Published: May 2023

В статье дано определение понятию «уровень субъективного контроля у обучающихся», а также приведены доводы в поддержку исследования эмоций у субъектов образовательного процесса. Установленные взаимосвязи между уровнем субъективного контроля и эго-состояниями у студентов очной и заочной форм обучения указывает на разные виды мотивации и цели, которые ставят перед собой обучающиеся.
Classification of ancient Greek wind musical instruments
Authors: Enzeldt Olga S.
Published: May 2023

The article offers a classification of wind music instruments of ancient Greece, the references to which have been revealed through the study of written sources (both epic and lyric poetry, as well as works of tragedians) from Homeric times to the end of the Classical period. Pictorial sources are used to characterise the appearance of the instruments.
Theatrical historical performances as a form of cultural solidarity in the space of a provincial town (early 1920-s)
Authors: Salimgareev Maxim V.
Published: May 2023

The article studies historical theatre performances on the territory of Kazan in the early 20s of the XX century on the basis of available historical sources and scientific literature. The political and cultural elite of the new state was faced with the task of attracting the attention of Soviet citizens to new, revolutionary symbols and values, since a significant part of the population, especially in the provinces, was still «eyeing» the Soviet order. After October 1917 the most common form of Soviet political celebration in the country was not only rallies and solemn meetings but plays on historical and revolutionary themes. Within the framework of the historical and cultural context, the connection of theatrical productions with innovative methods of influencing to the viewer is revealed. All the participants of the performances in Kazan were involved in the plot outline of the reproduced dramatic events of the recent past with their amateur, involved presence. On the streets and squares of Kazan, as well as many other Russian cities, a collective creation unprecedented in the history of world culture arose, where the natural experience of the dramatic moment of the past became a mysterious process and, at the same time, an original artistic text. During the theater, this was achieved in the most spectacular way, which was facilitated by both symbolic entourage and imitation of collective actions in which «random» meetings with participants in real events could take place. All this had a strong impact on the perception of the historical plot as the only possible scenario of historical reality and inspired a sense of deep involvement in the memorable event. Living the past as real created a new space of unprecedented ecstatic solidarity, where collective action became not just a political act of the revolutionary mass, strengthening the individual’s sense of belonging, belonging to the whole, it manifested the energy of the present moment, returning to disequilibrium and uncertainty, emotionally plunging into a situation of choice. The nascent unity of personalities was at the same time the foundation of a new social identity and at the same time the hope of restoring personality and society, unconscious cleansing from the hardships of reality, getting rid of ignorance, selfishness and inhumanity.
Towards the question of the genesis of pan-africanism
Authors: Khokholkova Nadezhda E.
Published: May 2023

The article is devoted to the problem of the origin of Pan-Africanism. The author focuses on the "American center" of the formation of its ideological and practical foundations. Special attention is paid to the early stage of the development of the current, the emergence of "proto-Pan-Africanism"(from the second half of the 18th century till the end of the 19th century). After analyzing the initiatives of the pioneers of the "Back to Africa" movement, the first American abolitionists and civil rights activists, the author concludes that their actions served to create the environment for generating the theory and practice of Pan-Africanism.
Housing cooperation in the USSR: ways of studying
Authors: Chervyakov Ruslan Y.
Published: May 2023

The article analyzes the basic tendencies of development of historiography of housing cooperation of the USSR, generated in 1920-1930th and 2000-2010th. The first trend goes back to the Soviet ideological settings, due to which the housing cooperation is considered only from the formal-legal side. In the 1940s and 1990s, no serious research on cooperation emerged. The second one is regional studies, which started to develop in early 2000s and extends the source base by means of archives’ materials, however it doesn’t allow to form concrete and historical view of the problem. There is therefore a need for a new approach to the study of the phenomenon of housing cooperation in the context of housing solutions.
The party "Ciudadanos" in the context of the crisis in Catalonia (March 2017 - June 2018)
Authors: Ryzhikova Ekaterina S.
Published: May 2023

The article examines the activities of the national party "Ciudadanos" with a focus on its initiatives during the acute phase of the crisis of separatism in Catalonia, associated with the referendum on the independence of the region (оctober 1, 2017) and the political struggle between supporters and opponents of the state unity of Spain. The reaction of the "Ciudadanos" to the activation of the separatist movement revealed the specifics of its ideological image. Special emphasis is given to the tactics of the "Ciudadanos", the analysis of its relationship with the leading political players at the regional level.Using the example of the studying the activities of the "Ciudadanos" in the conditions of catalan separatism, can be analyzed its ability to adapt to daily "challenges"; to understand the prospects for overcoming the catalan crisis. The maneuvers of the "Ciudadanos" in Catalonia in 2017 - 2018 are considered as evidence of the changes taking place in the political system of Spain.
Archive of the archaeological cabinet of P. G. Demidov Yaroslavl State University: experience of systematization
Authors: Danilov Evgeniy S. , Tsymbal Oksana G.
Published: May 2023

The article deals with the general description of archaeological reports and materials stored in the Archaeological Cabinet of P.G. Demidov Yaroslavl State University. At this stage drafts of texts of archaeological reports for the years 1974 to 1991 are analyzed in the article. The authors conclude that this corpus of materials can fill several gaps in study of archaeological sites of Yaroslavl region that Have been fully excavated or destroyed.
The age limit of criminal responsibility: history and nowadays
Authors: Ivanchin Artem V. , Kuleva Ludmila O. , Naurbieva Fatima Kh.
Published: May 2023

The article deals with the genesis of the institute of age of criminal responsibility. The authors analyze various approaches of legislators to establishment of age limits of criminal liability at different stages of historical development of Russia. The experience of foreign countries on the given issue is given and investigated. An explanation of the failure of draft laws on the reduction of the age of criminal responsibility is given and the current legislation is evaluated. The authors concluded that there is no need in the present day to adjust the age of criminal responsibility towards its lowering. At the same time the list of articles indicated in part 2 of art. 20 of the Criminal Code of the Russian Federation should be adjusted.
On the legal and psychological lessons of an approaching pandemic: eyewitness notes
Authors: Koneva Elena V. , Tarusina Nadezhda N. , Simonova Snezhana V.
Published: May 2023

The article discusses the restrictions on the rights and freedoms of citizens during the coronavirus pandemic, assesses their essence, proportionality and consequences, both legal and psychological. Reflections are offered on the relationship between the right to dispose of one’s life and health and the obligation to preserve health. The emergence of a new group of social minorities is stated - the elderly and citizens with health restrictions (disability), who were most of all subjected to restrictions in their livelihoods. Criteria are proposed that legal restrictions must meet in a pandemic. Assumptions and conclusions are illustrated by examples. The psychological characteristics of the perception of pandemic restrictions and the corresponding behavior of certain categories of citizens are given.
Sustentabilidade e segurança alimentar e nutricional
Authors: Domingos Bento Sebastião , Elísio José António , Sitoe Eugenio da Piedade Edmundo , Filipe Francisco Bento
Published: May 2023

A insegurança alimentar e nutricional está globalmente relacionada à pobreza. Alcançar a segurança alimentar e nutricional tem sido grande desafio para maior parte das famílias residentes nas áreas rurais em Moçambique. Este estudo objetivou avaliar o estado de segurança alimentar e nutricional nas famílias residentes no município de Chókwè. O estudo foi conduzido através de entrevista semi-estruturada dirigida a 260 famílias distribuídos em 7 bairros. Os dados coletados foram analisados por meio de software estático IBM SPSS 22 para a obtenção de valores de percentuais e índice de segurança alimentar. O estudo revelou níveis instáveis de segurança alimentar e nutricional na ordem de 55% no município de Chókwè. A renda mínima mensal dos agregados familiares esteve em torno de 4.900.00 MZN ($76.6 USD), valor que não garante a obtenção de todos os bens de consumo básicos para satisfação das necessidades alimentares das famílias. O milho, arroz, óleo e tubérculos, fazem parte dos alimentos consumidos com maior frequência pelas famílias de baixa renda em Chókwè. A maior parte dos alimentos consumidos pela população provinha de produção agropecuária familiar, que dependente das condições edafo-climáticas da região, fator limitante à obtenção de quantidades suficiente e permanente para o consumo. A implementação das políticas de gestão de segurança alimentar e nutricional existentes no País, pode contribuir para reduzir o nível de insegurança alimentar no município de Chókwè.
Цифровизация в области физической культуры и спорта
Authors: Черемисова А.А. , Хабибуллин А.Б.
Published: May 2023

Физическая культура и спорт, выступающие в качестве инструмента оздоровления нации, входят в число направлений, нуждающихся в реформировании, преобразовании в соответствии с современным уровнем развития науки и технологий. В статье анализируется степень цифровизации сферы физической культуры.Исследуется влияние цифровых и информационных технологий на физическую культуру и спорт.
Adaptive Android APKs Reverse Engineering for Features Processing in Machine Learning Malware Detection
Authors: Gyunka Benjamin Aruwa , Oladele Aro Taye , Adegoke Ojeniyi
Published: May 2023

The key component that makes the detection of android malware possible is the availability of the right triggers and pointers, which are found in the Android application packages, known as features or attributes. These are fundamental in the training of the different machine learning algorithms to produce the required detection model. The process of extracting these attributes or features, from the Android application packages, is known as reverse engineering. This paper delved into the experimental detail processes of applying reverse engineering procedure, using Sublime Text 2 and Androguard Plugin, on Android Application packages for the extraction of, particularly permissions, which are the targeted features. The study further discussed the cleaning stages, using NotePad++, Microsoft Excel Worksheet, and MS Word, to sort out all the relevant and important features by removing all the noisy ones. A total of 1500 Android apps were downloaded from both benign and malicious sources and used for the experiment. The cleaned or important features extracted from these application packages at the end of the reverse engineering processes are 162 in total and these were further used to form a feature binary matrix of size 1500 by 163 (including the class features).
Effectuation Strategy and Niche Marketing for Competitive Advantage
Authors: Nikmah Farika , Andi Sukma Erlangga , Suwarni Evi , Wahyu Hidayat Candra
Published: May 2023

This research was conducted on batik craftsmen in East Java, Indonesia. Competitive advantage for batik craftsmen is an effort to upscale by aligning their positions with corporate ones. Strategies that can be taken as an effort to achieve competitive advantage for batik craftsmen are effectuation strategies and niche marketing, where these strategies explore and exploit internal and external resources. Batik craftsmen, with their limitations, must be smart in dealing with their business in order to survive and be successful. The effectuation strategy teaches to maximize the resources you have to minimize the risk of loss. Creativity, innovation is the key to the effectuation strategy. Meanwhile, niche marketing is a strategy to avoid competing in the general market, but to focus on specific markets with consumers with definite demands.

The purpose of this study was to determine the effect of effectuation strategy and niche marketing on competitive advantage. Research with a quantitative approach, in regression, with data obtained through distributing questionnaires. The research population is batik artisans throughout East Java who are registered in the provincial government database and the sample is calculated using calculator.net.

The results of the study show that there is a positive and significant effect partially between the effectuation strategy on competitive advantage and niche marketing on competitive advantage. While the dominant influence is on niche marketing to competitive advantage. This is because batik is a unique product, so the market is segmented and specialized. So that the niche market is more potential as a market for batik craftsmen.
Hypertrophic cardiomyopathy in a girl with Danon disease
Authors: Leontyeva I. V. , Isaeva Yu. S. , Thermosesov S. A. , Trofimova T. A.
Published: May 2023

A prospective observation for 4 years (from 14 to 17 years) is presented for a girl with Danone’s disease. The early onset of the disease was noted, the clinical picture was dominated by syncopal and syncopal conditions. According to the clinical picture, presyncopal conditions were of a vasovagal nature, which was verified by the results of the Tilt test when the vasodepressor variant was detected. The disease was characterized by isolated cardiac disorders in the form of concentric hypertrophic cardiomyopathy, widespread fibrous changes in the myocardium. According to the standard ECG and daily ECG monitoring, ventricular preexitation syndrome was detected. Electrophysiological examination established the nodo-ventricular tract. Myopathy, cognitive impairment and visual changes were absent. A mutation in the heterozygous state was detected in exon 5 of 9 exons of the LMP2 gene, leading to the acquisition of a premature stop codon, was identified. X:g.119581719G>A ENST00000434600.2: c.718C>T. The mutation was verified by Sanger. The case in the pedigree is sporadic. As a prevention of sudden cardiac death, implantation of a cardioverter-defibrillator was performed. Effective relief of induced stable ventricular fibrillation (Burst stimulation protocol) was achieved only with the use of a ventricular electrode with two shock coils.
Experience of successful treatment of fulminant myocarditis
Authors: Rayanova R. R. , Nikolaeva I. E. , Yakovleva L. V. , Khabibullin I. M.
Published: May 2023

The incidence of myocarditis in children ranges from 0.026 to 2 cases per 100,000 children. It is known that approximately 0.05 % of all hospitalizations of children are associated with myocarditis. The total mortality of children from myocarditis in the acute period reaches 7–17 %, and in the fulminant course — up to 30 %. Currently, there is a tendency to decrease mortality, which is associated with the acquisition of new knowledge and the introduction of new methods of treatment of myocarditis, according to modern clinical recommendations. This report presents a case of a favorable outcome of fulminant myocarditis in a 13-year-old 4-month-old girl who became acutely ill. Clinical manifestations of the onset of the disease, issues of differential diagnosis, treatment tactics at the stages of routing are described.
Аnalysis of preoperative and postoperative electrocardiogram in children with total anomalous pulmonary venous connection
Authors: Morozov A. A. , Movsesyan R. R. , Afonina Y. G. , Vasichkina E. S.
Published: May 2023

Introduction. TAPVC is a condition that requires diagnosis and surgical treatment in a short period of time. As the result of an absence of the direct connection between pulmonary veins and left atrium, systemic and pulmonary venous return drainage to the right heart with volume and pressure overload. At the same time, left heart preload is depending on atrial septal defect. The hemodynamic features of the TAPVC create conditions for abnormal spread of electric impulses, whereas necessity of surgical reconstruction on the atrial level — reasons for rhythm and conduction disturbance in postoperative period.

Aim of the study: detection of specific EKG markers of TAPVC for differential diagnosis of critical conditions in children, analysis of basis preand postoperative EKG to determine EKG pattern in children with TAPVC, registration of EKG changing in early and late postoperative period to define the potential rhythm and conduction disturbance in patients with TAPVC.

Materials and methods. The data of biventricular TAPVC patients were reviewed. We estimated characteristic of P, PQ, QRS, QT, rhythm and conduction disturbance and evaluated preand postoperative EKG data, with their comparison in 30 patients. Results. Preoperative EKG (9,3 ± 6,5 days) showed sinus rhythm in all cases, P wave was 62,6 ± 10,6 (40–80) msec, PQ — 104,1 ± 15 (80–160) msec, QRS — 64,3 ± 13,5 (40–100) msec, QT — 253,1 ± 29,5 (210–350) msec, electric axis of the heart — 130,9 ± 44,4 (-70 ± 185). Postoperative rhythm was sinus in 83,3 % cases, atrial ectopic — 13,3 %, AV node rhythm — 3,3 %. The comparison of preand postoperative EKG data showed significant (p < 0,05) difference in P, QT, and electric axis of the heart measurements. In late postoperative period we detected non-pathological differences in P, PQ, QRS, QT compared early posleoperative period, but sinus node dysfunction frequency was high in late postoperative period.

Conclusion. There are no specific ECG markers in preoperative TAPVC patients. The standard EKG showed right heart volume and pressure overloud with positive changing of it after surgical correction of TAPVC. The early postoperative EKG did not showed “typical” rhythm and conduction disturbance after surgery at the atrial level, but patients require a long-time dynamic observation after TAPVC surgery because of higy frequency of sinus node dysfunction in late postoperative period.
Experience of maintaining the electronic register of young athletes in St. Petersburg with cardiovascular diseases
Authors: Alekseeva D. Yu. , Kofeynikova O. A. , Grigoriev V. V. , Vasichkina E. S.
Published: May 2023

Early diagnosis of cardiovascular diseases in people involved in sports, and dynamic monitoring of them are important for the primary prevention of sudden cardiac death. Our study presents clinical and instrumental information about the health status of young athletes with various cardiovascular abnormalities. Continued long-term prospective follow-up of underage athletes will contribute to the adoption of optimal decisions in the individual assessment of the athlete’s condition, aimed mainly at protecting the health of a young athlete, as well as developing his sports career.
А new coronavirus infection associated CNS involvement in children: literature review and clinical case description
Authors: Lyubimova N. A. , Pervunina T. M. , Ciel K. A. , Kostik M. M.
Published: May 2023

Recently, the number of reports and clinical observations of various immune-mediated diseases in children that occur after COVID-19, including those with central nervous system involvememnt, has increased. This review briefly highlights the current knowledge about neurological diseases in children after COVID-19 with a description of a rare post-сovid-19 case of the PANS syndrome in our center.
Сongenital central hypoventilation syndrome. Experience Almazov National Medical Research Centre
Authors: Petrova N. A. , Bryzzhin A. V. , Fofanova D. P. , Kolbina N. Yu. , Pervunina T. M. , Artamonova I. N. , Borodin A. V.
Published: May 2023

The article provides a brief review of the etiopathogenetic aspects of congenital central hypoventilation syndrome with an emphasis on genotype-phenotypic correlations, and highlights approaches to ventilatory support. Based on the data of the local register, the experience of Almazov National Medical Research Centre is summarised. A systematic multidisciplinary approach to the treatment and rehabilitation of children with congenital central hypoventilation syndrome that has been implemented provides the most favorable results in preserving neurological and intellectual potential and quality of life.
First results of maintenance of register in electronic form in pediatric patients with hypertrophic cardiomyopathy
Authors: Fetisova S. G. , Alekseeva D. Yu. , Abdullaev A. N. , Kostareva A. A. , Vershinina T. L. , Vasichkina E. S.
Published: May 2023

Background. The problem of managing children with hypertrophic cardiomyopathy (HCM) remains relevant due to the high risk of sudden cardiac death (SCD). Registers of patients with HCM contribute to a better understanding of the course of the disease and its outcomes.

Objective. To study the structure of CMP with a hypertrophic phenotype, as well as to identify clinical, molecular and genetic features of the course of HCM and outcome in children based on anamnestic, clinical and instrumental data from an electronic database.

Design and method/ Currently, the database includes complete information on 80 children from 0 to 18 years of age inclusive with a hypertrophic phenotype of CMP. The study was performed on the basis of the Department of Pediatric Cardiology and Medical Rehabilitation of the V.A. Almazov” of the Ministry of Health of Russia. The database contains the history of the disease and family history, the results of clinical and laboratory-instrumental examination, the results of molecular genetic research. The register is dynamically updated.

Results. The mean age of onset of HCM was 1.75 [0.02; 10.00] years. There were more boys than girls — 54 (67.5 %). The main complaints were decreased exercise tolerance in 35 (43.8 %) children and shortness of breath in 30 (37.5%) children. All children had signs of heart failure (HF): 53 (66.3 %) had signs of functional class 2 HF, 26 (32.5 %) — functional class 1 and 1 (1.2 %) — functional class 3. Ventricular arrhythmias were recorded in 23 (29 %) children, unstable ventricular tachycardia in 2 (2.5 %) children. Myocardial fibrosis of the left ventricle according to the results of MRI of the heart was found in 60.7 %. A lethal outcome was registered in 5 % (n = 4) of cases on average at 241 ± 117 days of life. All the deceased had phenocopies of HCM.

Conclusion. Maintaining an electronic database of patients with HCM will allow a better understanding of the influence of factors, including genetic ones, on the course, outcomes, and prognosis of the disease in the pediatric population.
Personalized approach in the management of children with cardiorenal syndrome (combined congenital heart and kidney defects)
Authors: Pervunina T. M. , Vasichkina E. S. , Erman M. V.
Published: May 2023

Today’s personalized medicine represents an integral model for the selection of diagnostic, therapeutic agents and preventive measures that are optimal for a particular individual, taking into account his genetic, physiological, biochemical, psychosocial and other characteristics.

The presence of a special relationship between the cardiovascular system and the kidneys are confirmed by a significant difference in mortality from malformations and in the population. The possibility of prenatal diagnosis of malformations sets the task of a special approach to the management of such patients, which can provide a personalized approach.

The article presents the experience of a personalized approach to the management of children with cardiorenal syndrome (combined congenital heart and kidney defects).
Nutritionology and lifestyle during pregnancy
Authors: Novikova N. Yu. , Tsibizova V. I. , Pervunina T. M. , Malushko A. V.
Published: May 2023

The problem of nutrition during pregnancy is relevant all over the world because of globalization. Globalization has brought fast food, sweets and improper nutrition. As a result of such nutrition, hunger is quenched, and saturation of the body with the necessary nutrients does not occur. As a result, the number of meals and their volumes increase, which leads to a vicious circle. Mom gains weight, and the fetus suffers even more: receiving a signal about insufficient intake of nutrients, it activates the genes for storing these nutrients and becomes obese after birth. Therefore, starting from the early stages of pregnancy, it is necessary to evaluate the eating behavior of a pregnant woman and make recommendations for its correction. The necessity and importance of nutritional support for gestation, adequate preparation for pregnancy is undeniable.
Biochemical markers of the first trimester screening in predicting obstetric complications
Authors: Kuchukova O. I. , Tsibizova V. I. , Pervunina T. M.
Published: May 2023

Small for gestational age and fetal growth restriction (FGR) are the leading causes of perinatal morbidity and mortality. It has been established that FGR may be a late manifestation of impaired invasion and growth of the placenta. It has been proven that a change in the maternal biochemical marker’s concentration during first-trimester screening at 11+0–13+6 weeks of gestation helps to identify pregnant women with a high risk of abnormal karyotype. The deviations in the maternal marker’s concentration in chromosomally and morphologically normal fetuses are associated with various obstetric complications, such as miscarriage, FGR, preeclampsia, and preterm birth. This review has predictive value in identifying pregnant women at high risk of developing FGR based on the results of a combined first screening.
A clinical case of a combination of Ebstein’s anomaly and genetically determined cardiomyopathy in a child who required a heart transplantation in childhood
Authors: Vasichkina E. S. , Vershinina T. L. , Morozov A. A. , Fedotov P. A. , Kovalchuk T. S. , Alekseeva D. Yu. , Grekhov E. V. , Pervunina T. M.
Published: May 2023

The article presents a rare case of a combination of Ebstein’s anomaly and primary cardiomyopathy in a 14-year-old teenager. The clinical case demonstrates diagnostic difficulties due to an unusual clinical picture, as well as difficulties in interpretation and choice of treatment tactics.
Hypertrophic cardiomyopathy in an athlete, occurring under the mask of sports remodeling. Secondary prevention of sudden cardiac death. Analysis of a clinical case
Authors: Leontyeva I. V. , Presova V. V.
Published: May 2023

HCMP is a severe heart disease characterized by high rates of sudden mortality, especially in young people. Optimization of the tactics of treatment of children with HCMP in order to improve the prognosis remains one of the urgent tasks of cardiology. A clinical case of a 15-yearold boy with moderate myocardial hypertrophy and an asymptomatic course of HCMP is presented, in connection with which the disease was not diagnosed for a long time. The boy was engaged in professional sports, during the competition he suddenly lost consciousness, clinical death occurred. Only timely resuscitation measures allowed to save the patient’s life. Implantation of a cardioverter defibrillator was performed as a secondary prevention of SCD (class 1 indications). The importance of timely examination of asymptomatic athletes with myocardial hypertrophy for differential diagnosis between HCMP and myocardial remodeling against the background of intense physical exertion (“athlete’s heart”) is emphasized. The importance of solving the issue of the inadmissibility of intense physical exertion, even with an asymptomatic course of HCMP, is shown. It should be remembered that it has been established that intense sports loads act as a trigger for cardiac arrest in patients with HCMP. Retrospective calculation of SCD risk based on HCM risc-SDD calculator/The BCC risk calculator at GCMP showed 3.19 %, which corresponded to a low risk. The possibility of SCD in patients with HCMP is emphasized, even with an estimated low risk, which requires further research to find predictors of an unfavorable outcome.
One-stage correction of epispadia to Macedo in a girl 3 years old
Authors: Kagantsov I. M. , Kondratieva E. A. , Kohreidze N. A. , Komlichenko E. V. , Pervunina T. M.
Published: May 2023

Introduction. Epispadias is an extremely rare disease. Epispadias in women is 5–6 times less common than in men. The incidence of female epispadias ranges from 1 in 160,000 to 480,000 live births. Epispadias can be diagnosed by a thorough examination of the genitals. Treatment of epispadias is only surgical, which is quite difficult and requires experience. The literature that discusses female epispadias is very limited. In this article, we would like to report on the surgical treatment of isolated epispadias in a 3-year-old girl at the Almazov National Medical Research Center.

Clinical case. A 3-year-old girl presented with the main complaint of urinary incontinence since birth, during the day and at night. Urinary incontinence was not caused by physical activity and was not aggravated by eating/drinking. Physical examination showed that the external genital organs of the patient have underdeveloped labia minora, abnormal urethra, bifurcated clitoris. Laboratory results were within the normal range. Voiding cystourethrography revealed urine leakage during the filling phase. The bladder wall was normal, there was no vesicoureteral reflux. The patient underwent simultaneous surgical interventions, consisting in plastic surgery of the urethra and reconstruction of the bladder neck, plastic surgery of the clitoris and labia minora. There were no intraoperative and postoperative complications. After 1 week and 6 months of observation, the patient achieved urinary retention, the surgical wound healed primarily.

Discussion. Epispadias is a rare condition that can vary in severity from mild to severe. Severely, splitting of the entire urethra occurs, involving the bladder neck, causing permanent urinary incontinence in the patient. Cases of epispadias are quite difficult to diagnose. The doctor should dilute the labia majora and carefully conduct a physical examination. The objective goals of the surgical treatment of epispadias are to achieve urinary retention, restore the anatomy, function and cosmetic appearance of the urethra and genitals. One-stage reconstruction is a modern surgical technique used to treat isolated epispadias in women.

Conclusion. Epispadias in women is a rare congenital anomaly that is often not detected in childhood. For isolated epispadias in a girl, one-stage surgical correction is currently preferred.
Modern view on genetic aspects of arrhythmogenic cardiomyopathy
Authors: Kofeynikova O. A. , Alekseeva D. Yu. , Kostareva A. A. , Vasichkina E. S.
Published: May 2023

Arrhythmogenic cardiomyopathy (ACM) is a genetically determined disease with a high risk of sudden cardiac death (SCD). The spectrum of genetic causes of this disease is quite wide and includes mutations in both desmosomal and non-desmosomal genes. A positive result of a genetic examination is used as a diagnostic tool in patients with ACM, so its correct interpretation is one of the key factors in a personalized approach to managing a patient with this pathology. The review presents generalized modern ideas about the genetic nature of ACM.
Enteral feeding abilities of neonates with congenital heart diseases underwent cardiac surgery — analysis of opportunities
Authors: Kaplina A. V. , Chugreeva O. N. , Zaretskaya Yu. B. , Treskina N. A. , Pervunina T. M. , Petrova N. A.
Published: May 2023

Objective: to analyze the factors affecting enteral feeding ability of neonates with congenital heart defects (CHD) who underwent cardiac surgery.

Patients and methods. The study included 214 full-term newborns with CHD who underwent cardiac surgery: 63 children with palliative correction of CHD and 151 children with radical correction of CHD. The characteristics of the early postoperative period, the timing of bottle feeding with additional gavage feeding, the achievement of the full volume of bottle feeding, the incidence of breastfeeding after surgery, and the duration of hospitalization were analyzed.

Results. The use of cardiopulmonary bypass (CPB) was associated with a longer duration of mechanical ventilation and inotropic therapy after cardiac surgery. Positive correlations (r > 0.6) were revealed between the duration of mechanical ventilation, inotropic therapy, of stay in the intensive care unit and the timing of the bottle feeding ability (including without additional gavage feeding). Newborns with palliative correction were able to feed from bottle significantly later than children with radical correction: there was a higher frequency of supplementary gavage feeding by the time of discharge (15.7 % vs. 1.8 %, p = 0.0016), a longer length of stay in hospital. Children who underwent the Norwood procedure were able to bottle feeding significantly later than newborns after other types of surgery.

Conclusion. Newborns with CHD require a personalized approach to enteral feeding, depending on the types of cardiac surgery undergone. Factors influencing the feeding of newborns were the use of CPB, the duration of mechanical ventilation and inotropic therapy after surgery.
Research on the Handover Strategy of Heterogeneous Network Based on the Dwell Time of Communication Blind Area
Authors: Zhang Cheng , Tang Yanfeng , Wang Xiuzhuo , Zhang Yan , Li Xiuyang
Published: May 2023

For the traditional indoor visible light communication heterogeneous network switching algorithm is only concerned with the research of vertical switching algorithm, however, the research of horizontal vertical collaborative switching combined with multi-carrier modulation technology is seldom mentioned, based on the above, this paper proposes a horizontal-vertical collaborative switching strategy based on the residency time of the communication blind area. Firstly, we use asymmetrically clipped optical OFDM (ACO-OFDM) for signal processing to reduce the bit error rate (BER) of the system by reducing the multipath interference generated during signal transmission.Secondly, the BER is used to determine the communication blind area and to calculate its dwell time. Finally, the threshold time is set as the channel interruption time in the communication blind zone, and the horizontal-vertical cooperative switching is performed by comparing with the dwell time. The simulation results show that the average network throughput is 195.28Mbps, and the average number of handovers is 1.35. Compared with instant vertical handover (IVHO) scheme and dwell vertical handover (DVHO) scheme, the average network throughput is improved by 37.21% and 28.45%, respectively, and the average switching times are reduced by 28.05% and 5.27%, respectively.
Comparing the cost-efficiencies of different methods of evaporation suppression for agricultural reservoirs
Authors: Chapman Arthur
Published: May 2023

Evaporation losses from reservoirs can comprise a substantial proportion of their water budgets. Suppression of evaporation has been investigated mostly in terms of efficiencies but far less so in the costs per unit of water saved. Using a Unit Reference Value (URV) calculation, which is similar to a Net Present Value (NPV) levelised cost approach, the unit costs of water delivered by alternative suppression options were compared. The different technical applications were chemical monolayers, shade cloth, and hard and soft floating covers. The components of the calculation include capital, operating, and maintenance costs over a 20-year term for specified water-saving efficiencies and at different discount and evaporation rates. The unit costs of the water saved by each technology were benchmarked against water delivered by a government water supply scheme tariff and desalination. Monolayers have the lowest unit price, but have the lowest efficiency and are highly vulnerable to wind. Shade cloth covers are competitive with desalination but are limited in extent to relatively small areas. Floating hard and soft covers are more expensive, per unit price of water delivered, than desalination, a result of more frequent capital equipment replacement. Current evaporation suppression technologies are likely infeasible, cost-wise, for agricultural use. The URV provides a useful means for comparing the cost-efficiencies of different water-saving approaches.
Stabilization and solidification of metal and organotin contaminated sediment after electrochemical pretreatment
Authors: Norén Anna , Strömvall Ann-Margret , Rauch Sebastien , Andersson-Sköld Yvonne , Modin Oskar , Fedje Karin Karlfeldt
Published: May 2023

Purpose
Stabilization and solidification (S/S) is a technique that enhances the structural properties of the sediment and reduces contaminant mobility, enabling the utilization of dredged contaminated sediment. Further reduction of the contaminants before S/S is, however, desirable to minimize leaching. The metal and organotin content in sediment could be reduced by electrochemical treatment. This is the first study on how electrochemical pretreatment impacts the strength and leaching properties of stabilized sediments.
Methods
Sediment was sampled from a port and was treated by using electrolysis. The removal of metals and organotin was investigated. Both treated and non-treated sediment was stabilized to investigate how electrolysis and also how different salinity and concentrations of organic matter during the curing affected the S/S properties by doing compression tests and leching tests.
Results
The electrolysis resulted in a 22% reduction of tributyltin (TBT) and a 44% reduction of zinc in the sediment. The results showed that the electrolyzed stabilized samples passed the requirements for compression strength and had a reduced surface leaching of zinc. Curing in saline conditions was beneficial for strength development and reducing the leaching of TBT.
Conclusion
Electrolysis reduced the sediment’s TBT and metal content, and the results indicate that pretreatment before stabilization could be beneficial to reduce contaminant leaching and to recover metals from the sediment. This study highlights the importance of investigating if a specific stabilization recipe fulfills the strength and leaching criteria in water similar to the field condition to assure satisfying results once implemented in the field.