bluuebunny/crossref_metadata_2025 huggingface dataset:
Про стан та перспективи досліджень з фізики високих енергій у рамках участі в міжнародних колабораціях LHCb (CERN, Geneva) та CBM (GSI/FAIR, Darmstadt)
Authors: Пугач Валерій Михайлович
Published: March 2024

У доповіді розглянуто результати досліджень та перспективи розширення участі Інституту ядерних досліджень НАН України в експериментах міжнародних колаборацій LHCb і CBM в рамках модернізації їхніх трекових систем з використанням новітніх монолітних мікропіксельних детекторів, виготовлених за CMOS-нанотехнологіями. Така модернізація уможливить проведення фізичних вимірювань за десятикратно підвищеної світності експериментів із відповідним зростанням їх статистичної значущості й точності просторово-часових характеристик реконструйованих фізичних подій. В Інституті створено також систему оцінки якості мікродетекторів.
П’ятдесят років давидовському солітону
Authors: Брижик Лариса Свиридівна
Published: March 2024

У статті коротко описано історію відкриття солітона, розглянуто зародження і розвиток ідеї, висловленої 50 років тому відомим фізиком-теоретиком ХХ ст. Олександром Сергійовичем Давидовим, щодо використання солітонів для пояснення механізму передачі енергії в біологічних системах на макроскопічні відстані. Це явище здобуло назву давидовського солітона, 50-річчю якого було присвячено ХХІХ Давидовські читання з теоретичної фізики, що відбулися в Інституті теоретичної фізики ім. М.М. Боголюбова НАН України.
February 2024 ACIP Meeting Update: Meningococcal, RSV, COVID-19, and Other Vaccines
Authors: Gaviria-Agudelo Claudia , Yonts Alexandra B. , Kimberlin David W. , Campbell James D. , Paulsen Grant C. , O’Leary Sean T.
Published: March 2024

The Advisory Committee on Immunization Practices, a group of medical and public health experts that provides advice to the Centers for Disease Control and Prevention, normally meets 3 times per year to develop US vaccine recommendations. The Advisory Committee on Immunization Practices met February 28 to 29, 2024, to discuss coronavirus disease 2019 vaccines, chikungunya vaccines, diphtheria-tetanus vaccine, influenza vaccines, polio vaccines, respiratory syncytial virus vaccines, meningococcal vaccines, pneumococcal vaccines, and Vaxelis (Diphtheria, Tetanus, Pertussis, Inactivated Poliovirus, Haemophilus influenzae b Conjugate, and Hepatitis B Vaccine). This update summarizes the proceedings of these meetings, with an emphasis on topics that are most relevant to the pediatric population. Major updates for pediatric clinicians include information about changes on influenza vaccine composition, meningococcal vaccination considerations, updated guidance for children with a contraindication to pertussis-containing vaccines, and recommendations of the world’s first chikungunya vaccine for certain populations.
Topological analysis of roadway and railway networks of the Ukrainian-Polish borderlands (on the example of Lviv Oblast and Subcarpathian Voivodeship)
Authors: Borsuk Yurii
Published: March 2024

The paper presents an analysis of functioning of roadway and railway networks in the context of logistics flows. The interaction of road vehicles and railroad cars within the given territories was characterized. The provided spatiotemporal modelling allows comparing the configuration of roadways and railways from the peripheral settlements to the regional capitals. The points that form transport links with the administrative centres of each studied territory were identified. A comparative topological analysis of the given lines of roadway and railway transport within the Ukrainian-Polish borderland employed quantitative (distance, time) and qualitative (curvature, travel speed) modelling parameters, characterizing the relationship of the borderland territories in two neighbouring countries of Eastern Europe. Relative indicators, which include curvature and speed, were estimated. A database of settlements based on accessibility to the city by road and rail transport was created, taking into account the top-10 centres of territorial communities, or hromadas, in Lviv Oblast and Subcarpathian Voivodeship. Alternative modes of transport for travelling from a centre of territorial community to the regional centre in Ukraine and Poland were highlighted. The study compared the settlements with low transport accessibility to the regional capital (oblast, voivodeship), taking into account the functioning of the roadway and railway networks. Social-geographical problems of the given territories were identified based on the analysis of topological indicators of each transport connections. I found that the network system of transport infrastructure in Subcarpathian Voivodeship is low-dense, especially in mountainous areas. Also, there was analyzed high accessibility of suburban settlements to the city of Rzeszów. In Lviv, connection between the suburbs and the city centre can be called problematic. Within the studied borderland areas, there were also found cases of disuse of the existing railway stations for passenger traffic. Variants that would promote the development of public transport in the Lviv Oblast have been proposed, based on the example of the transport model in Subcarpathian Voivodeship. Applied developments include the need to build the Opillia-Roztocze highway, assignement of high-speed electric trains from remote areas to the regional capital.
Presentation of the artist in the regional journal periodical
Authors: Dashchenko Nataliia L.
Published: March 2024

The artistic component of the literary-artistic and public-political magazine Literary Ternopil» (2008–2019) was formed by publications that show the current state of painting in the region through familiarization with the personalities of artists and their creative work. The article highlights and analyzes typical textual means of presenting the artist in the specialized section «Artist of the Number». As a result of the research, it was found that the text presentation is based on the involvement of elements of drawing, which are manifested in the depiction of heroes in action, retelling of life situations, depiction of the area, interiors, etc. The plot-compositional organization of the texts includes biographical, everyday, socio-political, historical, psychological contexts, to reflect which the authors provide data on education, places of creative work, participation in exhibitions, obtaining titles, cooperation with various artists, describe external signs, worldview and inner qualities of artists. Expressions of art critics, connoisseurs of painting, and artists themselves are used compositionally. The presenters of the artists are the titles of the publications in which the starting point of the image is formed. It remains constant or changes: it can be individual / collective, synchronous / diachronic, shift in space (natural environment, premises, native land, abroad), have an emotional / intellectual dimension, focus on a situation or involve a whole range of information. An important component of the presentation is the art history characteristic in combination with evaluative and figurative expressions. For this purpose, artistic means of speech and stylistically marked vocabulary (names of subjects of professional activity, artistic directions, styles, and techniques), names of famous Ukrainian artists, names of iconic paintings, their cycles, names of exhibitions, etc., are involved. All these aspects are aimed at reflecting the spiritual, intellectual, creative development of the artist.
Taking into account the influence of correlations on the system dynamics in the reduced description method
Authors: Lyagushyn S. F. , Sokolovsky A. I.
Published: March 2024

A complex of issues related to using the Peletminsky–Yatsenko model for the study of non-equilibrium processes is investigated. The problems are associated with the inability of performing the calculation of necessary averages when system states are described by a new, wider set of reduced description parameters, in particular, fluctuations. A matter system interacting with a non-equilibrium system of bosons is considered. The substance is described by two reduced description parameters η1 , η2 and calculations with the quasi-equilibrium statistical operator corresponding to these parameters are technically impossible; at the same time, the calculations can be performed with such operator in the case of the only parameter η1 . Overcoming this problem by considering only small values δη2 of the other reduced description parameter is proposed. An exact definition of δη2 is given, and the theory of perturbations by powers δη2 is developed for the calculation of the initial quasi-equilibrium statistical operator with accuracy up to second-order contributions. Since all further averages are calculated only with the named operator including only η1 , the simplified calculation procedure is carried out for it.On this basis, the theory of non-equilibrium processes in the system of two-level emitters interacting with the boson field is developed. The emitter system is described by excitation degree η1 and the value of emitter correlations η2. The system is considered as a system of spins. The mathematically identical Dicke model describing superradiance and Wagner model introduced for the analogous acoustic phenomenon description are studied. The quasi-equilibrium statistical operator calculation is constructed.
Effect of lattice disorder on charge transfer in lead molybdate crystals
Authors: Bochkova T. M. , Krivchenko A. Yu. , Trubitsyn M. P. , Volnianskii M. D. , Volnyanskii D. M.
Published: March 2024

*e-mail: tbochkova@meta.uaElectrical properties of PbMoO4 crystals, grown from the stoichiometric charge and non-stoichiometric charge with an excess of MoO3, are studied and compared in this work. The crystals are grown by Czochralski method in the direction at an angle of 30° to [100] axis in (001) plane. The single crystals are free from gas bubbles, cracks and have a weak yellowish color. It is found that the addition ofMoO3 excess (0.5 mol.%) to the stoichiometric charge notably increases the crystal lattice disorder. It is assumed that the appearance of lead ion vacancies plays the main role in the structural disordering. An increase of conductivity in DC and AC field, changes of current-voltage characteristics and AC-conductivity spectra are interpreted based on the model of hopping conductivity in disordered systems.
Microstructure, phase formation, and properties of melt-quenched CoCr0.8Cu0.64FeNi high-entropy alloy
Authors: Kushnerov O. I. , Ryabtsev S. I. , Bashev V. F.
Published: March 2024

This paper explores the CoCr0.8Cu0.64FeNi high-entropy alloy. Different criteria, such as the valence electron concentration, the Ω parameter, and the atomic size difference δ, are used to estimate the phase composition of the alloy. As-cast samples of the alloy are made by melting the components in a high-temperature Tamman furnace in an argon flow and solidifying them in a copper mold. The weight loss during the ingot production is minimal, and the average cooling rate is about 102 K/s. Melt-quenched samples are made by remelting the cast ingot and rapidly cooling the melt droplets on the inner surface of a fast rotating (about 8000 rpm) hollow copper cylinder. The cooling rate, estimated from the film thickness, is about 106 K/s. X-ray diffraction is used to analyze the structure of the samples on a DRON-2.0 diffractometer with monochromatic Cu Kα radiation. Magnetometry is used to measure the magneticproperties of the samples at room temperature. The results confirm the theoretical predictions that the structure of the alloy, in both states, is an FCC solid solution. The lattice parameters in the as-cast and melt-quenched states are 0.3593 nm and 0.3589 nm, respectively. The results also show that the CoCr0.8Cu0.64FeNi alloy is a soft magnetic material, but its coercivity and microhardness increase after quenching due to internal stresses.
VIBRATIONS OF A CYLINDRICAL SHELL STIFFENED WITH INHOMOGENEOUS LONGITUDINAL AND ANNULAR RIBES WITH LIQUID
Authors: Латіфов Ф. С. , Рзяєва В. Б.
Published: March 2024

Free vibrations of an inhomogeneous anisotropic, fluid-contacting cylindrical shell stiffened with inhomogeneous rods and rings are consider. The Hamilton – Ostrogradsky variation principle was used when solving  the problem. It was accepted that the nonhomogeneity of rods and rings used in the strengthening change by the exponential law. The inhomogeneous of the cylindrical shell change by the linear law in the direction of the thickness.  The fluid was accepted as ideal. Rigid contact condition between the rods and the cylindrical shell was considered. Using the contact conditions, the frequency equation was structured, the roots were found implemented by the numerical method and characteristically curves were built.
Active Surveillance of Small Renal Masses in a Large Danish Cohort: Assessing Proficiency in Patient Selection
Authors: Bak Rasmine , Bjerregaard Jensen Jørgen , Pelant Tau , Haase Rikke Nørresø , Kjærgaard Nielsen Tommy
Published: March 2024

Small renal masses (SRMs) are often benign or early-stage cancers with low metastatic potential. The risk of overtreating SRMs is a particular concern in elderly or comorbid patients, for whom the risks associated with active surveillance (AS) are lower than the risks of surgical management. The aim is to systematically analyse a large cohort of AS patients to provide valuable insights into patient selection and outcomes concerning delayed intervention (DI) and AS termination. We retrospectively analysed data from 563 AS patients across three institutions from 2012 to 2023. Patients were classified into three groups: those currently in AS (n=283), those who underwent DI (n=75), and those who terminated AS (n=205). DI patients were younger, and had larger initial tumour size and higher growth rates (GRs) than AS patients. A significant number of patients terminated their AS, mainly due to comorbidities and death from non-kidney cancer causes, suggesting unsuitability for initial AS enrolment. AS appears to be a safe initial management strategy for SRMs, with an overall low GR and only one patient developing metastasis. The patient selection for AS appears inconsistent, highlighting the need for improved criteria to identify AS candidates, especially considering comorbidities and the possibility of subsequent active treatment in the event of progression.
Statistical Substantiation of the Revising of Readings by the CityAir Station of PM2.5 Concentration Levels in the Atmospheric Boundary Layer of the City
Authors: Karepova Eugeniya , Petrakova Viktoriya
Published: March 2024

As a marker characterizing air pollution in the surface layer of the atmosphere of modern cities, the concentration level of particulate matter with a diameter of 2.5 microns or less (Particulate Matter, PM2.5) is often used. The paper discusses the practice of using a relatively cheap optical sensor, which is part of the CityAir station, to measure the concentration of PM2.5 in an urban environment. The article proposes a statistically justified correction of the primary data obtained by CityAir stations on the values of the concentration of suspended particles PM2.5 in the surface layer of the atmosphere of Krasnoyarsk. For the construction of regression models, measurements obtained from E-BAM analyzers located at the same observation posts as the corrected sensors were considered as a reference. For the analysis, primary data was used 1) from 9 automated observation posts of the regional departmental information and analytical system of data on the state of the environment of the Krasnoyarsk Territory (KVIAS); 2) from the 21st CityAir station of the monitoring system of the Krasnoyarsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences. The paper demonstrates that when correcting sensor readings, it is necessary to take into account meteorological indicators. In addition, it is shown that the regression coefficients significantly depend on the season. Supervised learning methods are compared for solving the problem of correcting the readings of inexpensive sensors. Additional information on the results of data analysis, which was not included in the text of the article, is available on the electronic resource https://asm.krasn.ru/.
Modern instrumentation and practical application of flame atomic emission spectrometry
Authors: Zauer E. A.
Published: March 2024

The modern instrumentation for flame atomic emission spectrometry (FAES) is overviewed: the main technical (composition of the fuel gas used, dispersing element, number of analytical channels, reference channel, detecting element, sampling method) and analytical (determined elements, range of determined concentrations, limits and the accuracy of their determination, the duration of a single measurement, the equired amount of the analyzed sample) characteristics of flame photometers for industrial and clinical use as well as spectrophotometers currently made by various manufacturers such as Sherwood Scientific Ltd., BWB Technologies UK Ltd., Labtron Equipment Ltd., Labnics Equipment Ltd. and JENWAY Ltd (UK); A.KRÜSS Optronic (Germany); Cole Parmer Instrument Company and Labfon Equipment Inc. (USA); Inesa Analytical Instrument Co., Ltd (China); OJSC Zagorsk Optical and Mechanical Plant, Unico-SIS LLC and VMK-Optoelectronics LLC (Russia); Manti Lab Solutions, Labtronics, Systonic, Globe Instruments, Electronics India, Lasany (India). The main areas of application of FAES are presented – bioenergy, agriculture (analysis of plants, soil extracts and fertilizers), mineral raw materials (geology), clinical medicine and pharmaceuticals, food industry, environmental control (analysis of drinking, technical and waste water), nuclear energy, metallurgy and chemical industry, as well as some features and problems associated with the preparation of samples for analysis by the FAES method. The review includes references to works on the practical application of FAES, published mainly from 1998 to 2023.
The Evolution of the Russian Diaspora in Northeast China (Late 19th – Mid‑20th Centuries)
Authors: Smirnov Sergey
Published: March 2024

Based on the fundamental statement that the Russian immigrant community in Northeast China in the late nineteenth – mid-twentieth centuries was a diaspora, this article examines the process of transformation of the nature of the Russian diaspora and the peculiarities of its functioning at certain stages of its existence. The research is based on the conceptual ideas of Imperial and Diaspora Studies. There are four stages of the existence of the Russian diaspora in Manchuria, which differ in the nature of the interaction of Russian immigrants with a foreign cultural environment, due to the sociolegal, economic, and political situation of the diaspora, as well as sociopolitical and sociocultural conditions of the living environment. The Russian immigrant community was formed as an imperial diaspora during the period of Russian domination in Manchuria. Despite the decline of the political and legal status and the marginalization in the early 1920s and later the split into politically antagonistic Soviet and Emigrant colonies, the diaspora retained elements of imperial consciousness and the desire for national and cultural autonomy. In the case of the Soviet colony, this was accompanied by attempts at a new “imperial” expansion in the form of Sovietization of the former alienated zone of the CER. In its turn, focused on the Sinification of the former alienated zone, the policy of the Chinese authorities led to a conflict of interests and hindered the process of integration of Russian immigrants, which was already complicated by the cultural and religious alienation of the living environment. The capture of Manchuria by the Japanese and the creation of the state of Manchukuo, which led to the disappearance of the Soviet colony, actualised the problem of the Russian diaspora’s integration into the multinational community of Manchukuo. Implemented within the framework of the Japanese pan-Asian national policy, the integration led to the strengthening of national defence tendencies and a significant numerical decline of the Russian diaspora. After 1945, the Russian diaspora, which was subjected to political repression, experienced intensive Sovietization and turned into an instrument of Soviet policy in Northeast China. The history of the diaspora ended with mass repatriation and remigration of 1954–1961.
Russian Diasporas of the Near Abroad in the Post-Perestroika Period: Phantom or Reality?
Authors: Uriadova Anna
Published: March 2024

Following the collapse of the USSR, a significant number of Soviet citizens not belonging to the titular nations of these countries found themselves in the territories of the newly formed states. This article aims to establish the extent to which the concept of “diaspora” is applicable to the Russian communities that lived in these territories during this period. The migration processes of today contribute to the replenishment of countries bordering on the Russian Federation with people of a different formation, at the same time helping the Russian abroad survive as a phenomenon, which makes the topic relevant. The work draws on legislative acts and other official documents of the state authorities, also referring to published interviews with Russian-speaking residents of these regions (both those living there and those who have returned to Russia). To date, the issue of the concept of “diaspora” is debatable. Without polemizing on this issue, the author bases the study not on the concept itself, but on its characteristics and key features shared by most scholars. The author gives a brief overview of the attitude of the Russian state to this category of population and to the problem of diasporas itself. Showing their transformation in the 1990s, the author concludes that it is inappropriate to apply this notion to the Russians of the near abroad in the above-mentioned period. Instead, the concept of “Russian-speaking communities” seems more appropriate, which does not deny the possibility of further transformation of the community into a diaspora.
The Mudros Armistice. The Armenian Question and British Diplomacy
Authors: Poghosyan Samvel , Virabyan Vanik , Yeprikyan Armine
Published: March 2024

The Ottoman Empire came out of World War I defeated. The representative of Great Britain signed the armistice agreement with the Turks in the port of Mudros on the Greek island of Lemnos. With that, the Turks were subject to capitulation. The terms of the Mudros armistice also had an impact on the Armenian Question. During the war, the Turks organized the Armenian Genocide and the Armenian territories under Ottoman rule (Cilicia and 7 provinces of Western Armenia) were completely ethnically cleansed. Out of 2.5 million Ottoman Armenians, 1.5 million were killed and 1 million became refugees. The task of this study is to demonstrate how Cilicia was immediately liberated from the Turks by the agreement of Mudros and the Armenians were able to return to their homeland, but Western Armenia was not liberated, which led to the emergence of the Kemalist nationalist movement and the failure of the Armenian Question. The article covers the negative consequences of the conditions of the Mudros armistice in the failure of the Armenian Question. The problem has never been considered from this point of view by historiography. Analyzing facts, the article shows that it was due to the intrigues of British imperialist diplomacy, which was directed primarily against France. However, it also aimed to block Russia’s way from the Caucasus to the south. The British tried to achieve their far-reaching goals through another power – the United States. The work mostly refers to archival materials and documents, also drawing on some studies related to the topic. The article is built on comparative and critical analysis, observing the principles of objectivity and historicity. Many representatives of Western and Russian historiography have addressed the Franco-British contradictions over the Ottoman heritage. Armenian historians have also referred to some aspects of the issue in question. In the study, facts previously published for different purposes are presented in a new way. The problem was set to show the influence of the British far-reaching aims on the Armenian Question.
The Russian Empire and the Soviet Union: The Dialectics of Rupture and Continuity
Authors: Miller Alexei
Published: March 2024

Historians, politicians, and other mnemonic actors are actively debating the question about what characterises the relationship between the Romanov Empire and the Soviet Union, i. e. continuity or rupture. The Soviet regime of the interwar period emphasised discontinuity, both in domestic policy and in the international arena. Whenever references to the Romanov Empire appeared in international treaties of the Soviets of that time, it was only in the context of a renunciation of that legacy. However, on the eve of World War II, the Soviet authorities clearly outlined the Soviet state’s claims to its status as a successor state of the Russian Empire, declaring its right to the territories of the Baltic states, Bessarabia, and the western regions of Ukraine and Belarus that had once been part of the Romanov empire, or were claimed by Russia in WWI, such as Galicia and Bukovina. In the USSR, starting in the second half of the 1930s, the image of the Russian Empire as a “prison of peoples” faded into the background, replaced by the arguments about “objective progressiveness” in annexing certain territories and ethnic groups into the empire. However, the role of the October Revolution as the founding myth of the Soviet society persisted until the Soviet Union’s implosion and left no doubt that the rupture was crucially important for the Soviet authorities. During Boris Yeltsin’s presidency in the 1990s, Russia was trying to shape a new narrative of a young nation, which was starting its history from 1991, but the attempt quite predictably failed. After becoming president, Vladimir Putin almost immediately switched to the narrative of “a thousand-year-old state”, proclaiming the legacy of both the Romanov Empire and the Soviet Union part of national history. The article discusses various historiographic approaches to the issue of rupture and continuity between the Romanov empire and the USSR and concludes that one can speak of a radical rupture between the Russian Empire and Soviet Russia (and later, the Soviet Union), since the Soviet project rejected the key components of the late Russian imperial project. At the same time, we can also argue that the imperial nature of the polity itself survived albeit transformed, not just during the 1917–1922 revolutionary crisis but also during the crisis of the 1990s.
“Duty, Love, and Hate…”: Russian-Polish Relations in the First Third of the 19th Century
Authors: Ivshin Vladislav
Published: March 2024

This review examines a book by E. M. Boltunova devoted to the “second coronation” of Nicholas I in Warsaw in 1829 and the memory of the Russian-Polish conflicts between the seventeenth and early nineteenth centuries. The novelty of the book is determined by the conceptualisation of the coronation through the methodology of the history of emotions and the history of memory in the contextual framework of R. Wartman’s “power scenarios”. Over the course of ten chapters, the author of the book reconstructs the spectra of emotions in the context of the formation of imperial symbolic and political mechanisms of governance of the Kingdom of Poland in the first third of the nineteenth century. The reviewer draws attention to the ambiguity of the number of interpretations offered by the author, resulting from the chosen methodological optics. The reviewer concludes that the book makes a serious contribution to the existing historiography of Russian-Polish relations in the first third of the nineteenth century by portraying, through the reconstruction of emotions, the Russian Empire as an extremely dynamic space.
Changes of biventricular contractile function depending on the types of left ventricular involvement in patients 1 year after COVID-19 pneumonia
Authors: Shirokov N. E. , Yaroslavskaya E. I. , Krinochkin D. V. , Osokina N. A. , Gorbatenko E. A. , Korovina I. O. , Migacheva A. V.
Published: March 2024

Aim. To study the changes of biventricular contractile function depending on the types of left ventricular involvement according to the speckle tracking echocardiography (STE).

Material and methods. Of the 380 patients from the Prospective Registry of People Survived COVID-19 Pneumonia, the study included 85 patients, which can be followed-up — 3 months (visit 1) and 12 months (visit 2) after COVID-19 pneumonia (men — 68,2%; mean age — 50,6±10,9 years).

At visit 2, patients with diffuse left ventricle (LV) involvement according to STE (visual involvement of ≥4 segments of the same LV level) comprised group I (n=27), patients with regional LV involvement (≥3 segments corresponding to anterior, circumflex or right coronary arteries) — group II (n=39), patients without visual LV involvement — group III (n=19).

Results. The groups were comparable in main clinical, functional and echocardiographic (conventional) parameters 3 and 12 months after COVID-19 pneumonia, with the exception of sex and body mass index. STE in group I showed a significant decrease in global longitudinal strain (GLS) (-18,0±2,0% at visit 1 and -16,9±1,4% at visit 2, p=0,025) and LS of all LV levels; in group II — an increase in right ventricular free wall strain (RV FWS) (-22,8±3,2% and -24,0±2,6%, respectively, p=0,006); in group III — an increase in GLS (-19,3±2,3% and -21,2±1,9%, p=0,005), LS of basal and medium LV levels, RV FWS (-23,3±2,9% and -25,0±3,0%, p=0,033). In group I, a significant increase in affected LV segments was revealed (7,0 [5,0;9,0] and 9,0 [7,0;10,0], p=0,010), while in group III there was a decrease in their number (5,0 [3,0;6,0] and 10,0 [1,0;2,0], p<0,001). According to logistic regression, LV basal LS at visit 1 (odds ratio 0,420; 95% confidence interval 0,273-0,644; p<0,001) had an independent association with diffuse LV involvement at visit 2. When it decreases, <15,8% sensitivity and the specificity of this model in predicting diffuse LV involvement was 74,1% and 74,1%, respectively (AUC=0,807; p<0,001).

Conclusion. Patients with diffuse LV involvement according to STE are characterized by suppression of global biventricular contractile function during 1-year follow-up.
Difficulties in diagnosing and predicting possible complications in patients after heart transplantation: single-center experience in the Krasnodar region
Authors: Tkhat L. K. , Tatarintseva Z. G. , Kosmacheva E. D.
Published: March 2024

Aim. To evaluate the early and long-term outcomes of heart transplantation (HT) at the Research Institute of the S. V. Ochapovsky Regional Clinical Hospital № 1.

Material and methods. On the basis of the Research Institute of the S. V. Ochapovsky Regional Clinical Hospital № 1 from March 2010 to March 2023, 230 HTs were carried out. Among the patients, men predominated 86% (n=198), women — 14% (n=32). The mean age was 48,3±11,7 years. The reason for HT in 42,6% (n=98) was ischemic cardiomyopathy (ICM), in 40% (n=92) — dilated cardiomyopathy (DCM), while 17,4% were operated on for another cardiac pathology (n=40). All recipients underwent immunological examination, endomyocardial biopsy (EMB), 2D-speckle-tracking echocardiography (2D-STE), transthoracic echocardiography (TTE), coronary angiography (CAG), as well as a number of studies for early diagnosis of possible cancer complications.

Results. Acute rejection during the first three years was detected in 77 recipients (42,5%), of which cellular rejection (grade ≥2, 3) and humoral rejection was verified in 49 and 28 recipients, respectively. During the entire follow-up period, de novo anti-human leukocyte antigen (HLA) antibodies were detected in 34 recipients in the posttransplantation period, of which 50% (n=17) and 35% (n=12) were diagnosed with humoral and cellular rejection, respectively. Of the 34 patients with anti-HLA antibodies, 11 (32%) died. All of them died due to a humoral rejection. The survival rate of patients with antibodies was lower (59%) than in patients without antibodies (66%), p=0,023. The annual survival rate of all patients after transplantation in our center was 83,1% (during the first year after transplantation, 30 and 9 patients died due to an acute rejection and infectious complications, respectively).

Conclusion. Since the introduction and modification of immunosuppressive therapy regimens, tremendous progress has occurred, and the incidence of acute cellular rejection has decreased. However, the risk of humoral rejection and long-term complications remains one of the main reasons for graft failure.
Modern strategies for the treatment of type 2 diabetes in patients with stable coronary artery disease. Old goals, new opportunities (literature review)
Authors: Grishaev S. L. , Cherkashin D. V. , Salukhov V. V. , Alanichev A. E.
Published: March 2024

The review summarizes and analyzes the available literature to provide information to clinicians about the best treatment strategies for type 2 diabetes in stable coronary artery disease. This data should help health care professionals make decisions in routine practice. 2023 European and Russian guidelines on type 2 diabetes suggest giving preference to glucose-lowering agents with proven benefits for the cardiovascular system, followed by drugs with proven safety for the cardiovascular system.
Assessment of vascular age and cardiovascular risk factors among young women in the Moscow region
Authors: Chernyavskaya T. K. , Erofeeva S. N.
Published: March 2024

Aim. To assess vascular age (VA) and the main cardiovascular risk factors (chronological age, body mass index (BMI), carotid-femoral pulse wave velocity (PWV), blood pressure (BP)) in women in the Moscow region.

Material and methods. We assessed BP levels, BMI, PWV, and also calculate vascular age for women participating in the forum. BMI was calculated using the Quetelet index as weight divided by height squared (BMI=kg/m2). BP levels were measured in a sitting position three times on both arms, with the highest result recorded. PWV and vascular age were calculated using AngioScan01. The association between anthropometric measures, vascular stiffness, and VA differences was examined using multivariate linear regression, adjusting for traditional cardiovascular risk factors. Intergroup (systolic blood pressure <140 mm Hg and ≥140 mm Hg) comparisons of PWV and VA difference from actual were performed using a modified Welch's t-test.

Results. The study involved 260 women. The mean age was 44,92±0,85 years (95% confidence interval (CI) 43,27-46,57), mean vascular age — 45,90±1,01 (95% CI 43,91-47,89), mean BMI — 23,383±0,66 kg/m2 (95% CI 22,046-24,720). Mean systolic BP was 127,63±1,89 mm Hg (95% CI 123,89-131,36), diastolic BP 80,031±0,93 (95% CI 78,20-81,86), mean PWV was 11,38±0,16 m/sec (95% CI 11,05-11,70). Analysis of the VA difference between women with BMI <25 kg/m2 (BMI1, n=93) and ≥25 kg/m2 (BMI2, n=67) revealed a significant difference in the calculated VA values (p=0,0002) between groups.

Conclusion. Modern young women have high rates of vascular stiffness, which may determine the increase in morbidity and mortality rates in the working-age female population. The VA indicator predicts cardiovascular events and can be considered as an effective screening method for assessing cardiovascular risk, which is especially important for young patients.
Disturbing Effects of Global Oil Price Changes: Case of Azerbaijan
Authors: Deniz Müjgan , Heyderov Azad
Published: March 2024

General topic in this paper is the role of oil industry in global economy and the result of changing oil prices on economic variables in Azerbaijan. The major aim is to analyze the effects of crude oil price changes on Azerbaijan economy in order to measure how changes in oil prices affect its basic economic variables. At the beginning, a general outlook on oil industry will be given and the main oil exporting economies will be analized. However, main focus will be on the structure of Azerbaijan’s economy and it will examine the example of Azerbaijan as a transition economy where oil and gas production and exports have steadily increased from the mid ‘90s. Many critical oil and gas extraction projects have been implemented; while the oil and gas sector's dominance in the economy poses a number of threats to the balanced development of the country's economy. It will show how the economy of Azerbaijan was affected after the oil crisis, such as other developing countries that mainly depending on oil and petroleum products. For this purpose, VEC Model has been applied, consdering Azerbaijan Statistic Data and analized the effects of oil price fluctuations on its economic variables parallel with the oil industry. The main findings indicate that Azerbaijan's economy is strongly dependent on resource exports, which produce high growth rates when commodity prices are favorable, but end up with lower macroeconomic performance when global oil prices fall. It is clear that the main income of Azerbaijan comes from oil and oil products, so the export of oil will have a high impact on the saving level of the population. At the time of high revenues come from export and the low exchange rate of the foreign currency in Azerbaijan has also led to the low cost of imported goods. As well demonstrated in the research, Azerbaijan economy has been widely exposed to major crude oil price distortions. It can be said that in order to avoid increasing overdependence on oil earnings, diversifying the economy should be a top priority.
First Brazilian record of Chiroxiphia napensis (Aves: Pipridae) and revision of the distribution of the C. pareola complex in the Amazon
Authors: GOMES Arthur Monteiro , COHN-HAFT Mario
Published: March 2024

ABSTRACT We present the first Brazilian record of Chiroxiphia napensis, documented by an adult male specimen collected on the right bank of the upper Japurá River. We also compiled verifiable records of all Amazonian taxa in the C. pareola complex to update their range maps. New records extended considerably the ranges of all taxa. By assuming river-delimited distributions to infer areas from point records, we generated a predictive distributional map that suggests testable hypotheses about occurrence in unstudied areas and that pinpoints topics for future research. We interpret C. napensis as endemic to the Amazon-Japurá interfluve, its range extending narrowly beyond this area in the foothills of the Andes. We suggest that the unusual distribution pattern of C. regina could be the result of river avulsion. We also detected a region of possible contact between C. regina and C. pareola, and a large area in northern Amazonia from which the complex appears to be absent.
Caracterização dos tutores de ensino-aprendizagem em serviços públicos de saúde e temas de interesse para atuação
Authors: Souza Isadora Siqueira de , Paiva Neto Francisco Timbó de , Pereira Rebecca Cabral de Figueirêdo Gomes , Shimocomaqui Guilherme Barbosa , Paz Ana Cláudia Pereira da , Paresque Marcio Anderson Cardozo , Eshriqui Ilana
Published: March 2024

RESUMO Objetivo: Descrever o perfil de tutores de ensino-aprendizagem em serviços públicos de saúde e investigar quais são os temas de maior interesse em espaços de desenvolvimento desses atores. Método: Estudo transversal. Elegíveis tutores da Planificação da Atenção à Saúde. Coleta de dados por questionário eletrônico composto por questões fechadas sobre características sociodemográficas, formação e atuação. Teste Qui-quadrado utilizado para comparar proporções segundo tipologias de tutor. Resultados: Considerados 614 tutores, que atuavam nas cinco regiões geográficas brasileiras, sendo a maioria na Atenção Primária (82%), seguido por atuação estadual/regional (13%) e na Atenção Ambulatorial Especializada (5%). A maioria referiu ser mulher, de cor da pele parda, da área de enfermagem, atuação como tutor há menos de 1 ano, e sem experiência prévia em preceptoria ou similar. Temas considerados mais importantes destacam-se Redes de Atenção à Saúde, estratificação de risco de condições crônicas e funções da Atenção Ambulatorial Especializada. Conclusão: Identificou-se a predominância de algumas características entre tutores, com diferenças entre as tipologias de atuação. Os achados podem apoiar gestores no processo de seleção e desenvolvimento de tutores na Planificação.
Knowledge of nursing staff before and after training on incontinence-associated dermatitis
Authors: Ximenes Raelly Ramos Campos , Chaves Edna Maria Camelo , Girão Ana Lívia Araújo , Gonçalves Maria Helane Rocha Batista , Ferreira Saionara Leal , Carvalho Rhanna Emanuela Fontenele Lima de
Published: March 2024

ABSTRACT Objective: To verify the knowledge of nursing staff before and after training on incontinence-associated dermatitis. Method: A study before and after an educational intervention carried out with nursing staff from the medical and surgical clinics and intensive care unit of the university hospital in June 2023. The training took place over three meetings. Data was collected using a questionnaire administered immediately before and after the training. McNemar’s test for dependent samples was used to compare before and after training. Results: 25 nurses and 14 nursing technicians took part. The items that showed statistical significance were related to the identification and correct differentiation of dermatitis associated with incontinence and pressure injury; and the correct way to sanitize the skin. Conclusion: The training of the nursing team made it possible to assess their knowledge of how to identify, prevent and treat incontinence-associated dermatitis.
Conhecimento da equipe de enfermagem antes e após capacitação sobre dermatite associada à incontinência
Authors: Ximenes Raelly Ramos Campos , Chaves Edna Maria Camelo , Girão Ana Lívia Araújo , Gonçalves Maria Helane Rocha Batista , Ferreira Saionara Leal , Carvalho Rhanna Emanuela Fontenele Lima de
Published: March 2024

RESUMO Objetivo: Verificar o conhecimento da equipe de enfermagem antes e após capacitação sobre dermatite associada à incontinência. Método: Estudo antes e depois de uma intervenção educativa realizado com profissionais da equipe de enfermagem das clínicas médicas, cirúrgicas e unidade de terapia intensiva do hospital universitário, no mês de junho de 2023. A capacitação ocorreu durante três encontros. Os dados foram coletados por meio de questionário, aplicado imediatamente antes e após a capacitação. Para a comparação do antes e após capacitação, foi realizado o teste de McNemar para amostras dependentes. Resultados: Participaram 25 enfermeiros e 14 técnicos de enfermagem. Os itens que apresentaram significância estatística foram relacionados à identificação e à diferenciação correta da dermatite associada à incontinência e lesão por pressão; e a forma correta para higienização da pele. Conclusão: A capacitação da equipe de enfermagem permitiu avaliar o conhecimento da equipe de enfermagem para identificar, prevenir e tratar a dermatite associada à incontinência.
Percentage of patients shifting to another treatment modality: An experience-guided decision
Authors: KUMARI Shivangi , GOYAL Manish , KUMAR Mukesh , KHANNA Mannu , YADAV Ekta , SINGH Tanisha
Published: March 2024

ABSTRACT Objective: This study aimed to assess the frequency with which orthodontic patients decided to shift to another type of orthodontic appliance, among conventional metal brackets, ceramic brackets, lingual brackets and clear aligner, based on their personal experiences of pain, ulcers, bad breath, hygiene issues and social difficulties. Material and Methods: This study comprises of patients seeking orthodontic treatment. The sample (n = 500; age group = 19-25 years) was divided equally into four groups based on the treatment modality: conventional metal brackets, ceramic brackets, lingual brackets and clear aligner. Patients rated the questionnaire using a visual analogue scale, to assess variables (such as pain, ulcer etc) that impact various treatment modalities. Subsequently, patients from all groups provided feedback regarding their treatment experiences, and expressed their preference for an alternative modality. Intergroup comparison among the four groups was done using one-way analysis of variance with Tukey’s HSD post-hoc test (p ≤ 0.05). Results: Patients who received lingual brackets reported higher levels of pain and ulceration, as compared to those who received clear aligners. All four groups showed statistically significant differences for ulcers during treatment (p ≤ 0.05). Of the 125 patients who received conventional metal brackets, 28% expressed a preference for clear aligner therapy, while 20% preferred ceramic brackets. In the lingual group, 56% of 125 patients preferred clear aligner therapy, and 8% preferred ceramic brackets to complete their treatment. In the ceramic group, 83% did not want to switch, whereas 17% desired to switch to clear aligner, while in aligner group no patient desired to switch. Conclusions: A higher percentage of patients from lingual brackets group chose to shift to clear aligners, followed by conventional metal brackets group and by ceramic brackets group, in this descending order. The clear aligner group demonstrated fewer issues than the other treatment modalities.
Evaluating the precision and accuracy of digital dental models with a low-cost structured light device
Authors: STUANI Vitor de Toledo , PAULA Matheus Dante de , MICHEL Raphaella Coelho , MANFREDI Gustavo Gonçalves do Prado , FERNANDES Edna Maria de Oliveira , PASSOS Diana Gabriela Soares dos
Published: March 2024

ABSTRACT Objective: This study evaluated the accuracy and precision of digital models acquisition using a home-built, low-cost scanning system based on the structured light method. Methods: a plaster model (PM) was scanned using the experimental device (SL) and a dental desktop scanner (DS). The teeth dimensions of PM and SL models were measured in triplicate, with a caliper and digitally, respectively. The agreement of the measurements of each model was evaluated using the intraclass correlation coefficient, and the validity between the different measurement techniques was assessed using the Bland-Altman analysis. The accuracy and precision of the models were qualitatively investigated using the mesh superposition of the SL and DS models. Results: A high intraclass correlation coefficient was observed in all models (PM=0.964; SL1=0.998; SL2=0.995; SL3=0.998), and there was no statistical difference between the measurements of the SL models (p>0.05). PM and SL model measurements were found to be in good agreement, with only 3.57% of the observed differences between the same measurement being located outside 95% limits of agreement according to Bland and Altman (0.43 and -0.40 mm). In the superimpositions of SL-SL and SL-DS models, areas of discrepancy greater than 0.5 mm were observed mainly in interproximal, occlusal, and cervical sites. Conclusion: These results indicate that the home-built SL scanning system did not possess sufficient accuracy and precision for many clinical applications. However, the consistency in preserving the dental proportions suggests that the equipment can be used for planning, storage, and simple clinical purposes.