bluuebunny/crossref_metadata_2025 huggingface dataset:
Study of Prevalence of Temporomandibular Disorders among Undergraduate Students
Authors: M. Jwaid Maher
Published: January 2024

Temporo-mandibular joint function has been extensively studied for more despite extensive investigation, the complicated etiology of TMJ dysfunction has remained a mystery for more than a century. Temporomandibular disorder (TMD) is a sub - class of painful orofacial conditions characterized by complaints of pain in the region of the temporomandibular joint (TMJ), difficulty concentrating craniocervicofacial muscles, especially mastication muscles, limitations of mandibular movement, and the presence of articular clicking. Emotional stress, occlusal interferences, tooth loss, postural deviation, muscles of mastication neuromuscular both internal and external dysfunction anomalies in Temporo-mandibular joint anatomy, and the multiple interrelationships between these factors all contribute to the complicated etiology of TMD.Aim: Determine the prevalence of temporomandibular joint disorder between college students. The sample for this sectional potential study consisted of 691 college students (339 male and 352 female). Self-reported questionnaires were used to determine the incidence and severity of TMJ disorders. By virtue of the quantity and frequency of notable replies, the rankings were upgraded to an intensity ranking. Results:56.6% of students reported some level of TMD, including 39.7% with mild TMD, 12.2% with moderate TMD, and 4.6% with severe TMD. Historically, no significant correlation between gender and TMD severity was observed.Conclusion: This student population exhibited a high prevalence of TMD; however, the majority of cases were mild. The statistical significance of the association between TMD severity and gender is no longer proven. Despite having TMD. The students had little knowledge of their conditions.
Comparative Evaluation to Surface Roughness of Modified Heat Cured Acrylic Resin by Zinc Oxide Nanoparticles and CAD/CAM Denture Base Materials - In Vitro Study
Authors: Nabeel Al-Shakarchi Mustafa , Himmadi Hasan Radhwan
Published: January 2024

One of the most promising CAD/CAM approaches is milling denture base materials from highly condensed pre-polymerized resin discs. In an effort to overcome the disadvantages of acrylic resin denture base materials, nano-filler materials have been added as well as denture base chemistry adjusted to strengthen the denture base.This eliminates disadvantages associated with polymerization shrinkage compared to conventional heat-cured acrylic resin. Aim of this study: evaluate the surface roughness of PMMA acrylic resin after strengthening the denture- base by addition of zinc oxide nano-filler material to acrylic resin PMMA with concentration (1%) and compare with milled CAD/CAM and non-modified heat-cured PMMA denture base materials. Materials and methods: thirty specimens of acrylic resin PMMA were prepared and divided into three groups 10 specimens for each groups as follows; Control Group (Group1) without ZnO nanoparticles ; Group (2) with (1%) by weight of ZnO nanoparticles ; Group (3) milled CAD/CAM.Each specimen is of dimension ( 10 x 10 x 3 ) in mm and was fabricated using conventional processing method and milling the CAD/CAM blocks .Results: showed the lowest mean value was recorded by milled CAD/CAM (0.230 Ra) Then the non-significant reduction with mean value (0.312 Ra) by PMMA+ ZnO 1% and highest mean value of surface roughness was recorded by pure PMMA without additive (0.327 Ra).Conclusions: There were significant differences between control group PMMA and milled (CAD/CAM) with slight reduction of surface roughness of PMMA with (1%) Zno nanoparticles.
The Effect of Diet Consistency on the Craniofacial Morphology: A review Article.
Authors: Rafea Yahya Al-Mallah Mahmood , Sobhi Salih Al Qassar Sarmad , Khalid M. Omer
Published: January 2024

Mastication is a chewing route, that implicates a group of muscles that are responsible for moving the mandible condyle in the temporomandibular joint (TMJ) to chore food between the teeth in the maxillary and mandibular arches (1) .Regarding the growth of the craniofacial system (CFS),there are an agreement which is strongminded via genetic and ecological aspects (2) . Masticatory forces considered as one of the chief environmental incentives that produce craniofacial difference amongst modern humans. New researeches on a broad variety of creatures, counting those having retro-gnathic post canine teeth, expect that retorts to the force of mastication that determined the superior in the occlusal plane (3) . The effect of masticatory stroke induced by the muscles of the mastication on the development of the morphology of craniofacial portion, has established significant attention in the recent oral invistigations (4) . Meanwhile the skeletal of the CFS adapts to the applied loads by bone remodeling in order to get the optimum formula to resist loads according to Wollf ’s law (5) . CFS has been assumed that it formula is mainly resolute by loading induced by mucsles of mastication. This has been reinforced by numerous clinical and experimental readings (6-9) . Investigational studies displayed that the reduced stresses induced by function on the animals mandibles, whose nourished a lenient diet outcomes in organizational variations in their masticatory systems (10) , in addition to morphological modifications of the lower jaw, like diminished of the alveolar bone size (11, 12) .Diet could be considered as a element of masticatory magnitude. Recent humans in developed countries eat an additional treated and softer diet rather than old humans. The change from hard to soft nourishment has been join by reduce in mandibular dimension and the growth of the alveolar bone, along with enlarged occurrence of malocclusion (1,5,7).
Compressive Strength and Surface Roughness of Nanoparticles Enriched Glass Ionomer Cement
Authors: A Fathi Ula , A. Ahmad Zena , Abdulbari Abduljawad Jumana , Mohammad Younis Zena
Published: January 2024

Aim: This study was assumed to investigate the effect of incorporation of nanoparticles “Titanium Dioxide Nanoparticles (TiO2)” in two different percentages which are 3% and 5% (by weight) on compressive strength and surface roughness of glass ionomer cement (GIC) so to improve the conventional glass ionomer cement properties.Materials and Methods: the powder of GIC was incorporated with TiO2 nanoparticles at two concentrations: 3% and 5% (w/w). An unmodified conventional GIC used as the control group. Ten specimens of each GIC group were used to study the compressive strength using a Universal Testing Machine. Also, 10 discs from each GIC group were used for surface roughness measurement by using profilometer. one way analysis of variance ANOVA test and Tukey’s test were used to analyze data. Results: Nanoparticles incorporation to GIC lead to improve its compressive strength for both percentages 3% and 5%, Tukey’s test showed a significant increase in compressive strength between nanoparticles incorporated and conventional group. The surface roughness measurement also show significantly improvement in both 3% and 5% nanoparticles groups (p<0.05). Conclusion: GIC with TiO2 nanoparticles.
Efficient Delivery of Recombinant Human Bone Morphogenetic Protein (Rhbmp-2) With Cockle Shell Derived Calcium Carbonate Nanoparticles (CaCO3NPs)
Authors: T. Ghazi Ataa , F. Saloom Hayder , I. Mahmood Rana
Published: January 2024

Bone morphogenetic protein-2 (BMP-2) has a significant function in the formation of cartilage and bones. Notably, dosing of only BMP-2 protein intravenously is ineffective. Persistent transportation of the stabilized BMP-2 through a carrier has been seen to be essential for enhancing the osteogenesis im pact of BMP-2. The current research built a new system of drug delivery by utilising cockle shell derived calcium carbonate nanoparticles (CaCO3NPs) and studied the efficacy of the delivery system on the recombinant human bone morphogenetic protein (rhBMP-2). rhBMP-2-CaCO3NPs nanoparticles were synthesised by means of a modest precipitation procedure along with mechanical grinding. Fourier-tran sform infrared spectroscopy, UV–Vis spectrophotometer, scanning electron microscope, X-ray powder diffraction, transmission electron microscope, and zeta potential were u tilised for characterising the conjugated rhBMP-2-CaCO3NPs . Cytotoxicity of rhBMP-2, CaCO3NPs and rhBMP-2-CaCO 3NPs was studied by utilising methylthiazol tetrazolium assay against fibroblast (Rat-1) cells in comparison to rhBMP-2 and CaCO3NPs. The outcomes signified bio-stability of CaCO3NPs and lower toxicity for Rat-1 cells. In summary, CaCO3NPs were prepared by a simp le precipitation process. The ensuing nanoparticles could competently entrap rhBMP-2 and generated stable rhBMP-2-CaCO3NPs. A sustained discharge of rhBMP-2 from t he CaCO3NPs was seen. CaCO3NPs loaded with r hBMP-2 demonstrated reasonable bio-compatibility. The outcomes indicated that CaCO3NPs may have significant ability as carrier of therapeutic proteins within bone tissue en gineering.
Inventarization Macroscopic Fungi at Tegallega Resort Taman Gunung Gede Pangrango National Park
Authors: Nabila Khusnul Cahyaningtyas  , Husnin Nahry Yarza
Published: January 2024

This study aims to inventory macroscopic fungi at Resort Tegallega, Gunung Gede Pangrango National Park conducted at three tracking locations. The research method used is descriptive qualitative and with the cruise data collection method (cruise method) by tracing the research location points.
The results obtained based on the research that has been done, it was found that most of the fungi belong to the phylum Basidiomycota and only one type of fungus belongs to the phylum Ascomycota. The environmental conditions where mushrooms grow are not that much different, because the three tracking points are still in the same area.
Intergenerational dynamics of migrants' family memory: global trends and Russian specifics
Authors: Linchenko Andrei Aleksandrovich , Ovchinnikov Aleksandr Viktorovich , Blaginin Vladislav Sergeevich , Andrisenko Simona Andreevna
Published: January 2024

The article is devoted to the analysis of intergenerational features of the transformation of the migrants’ family memory in the context of global trends in five Russian regions. Using transnational and praxeological approaches, the authors examined the migrants’ family memory as a configuration of narratives and practices, including the memory of both the country of origin and the commemorative practices of the host society. Based on the biographical method of Fritz Schütze, the authors identified and analyzed the curves of family narratives of the first, 1.5 and second generations of migrants. The article concluded that family commemorations continue to play an important role in constructing the identity of migrant communities in the Russian provinces. The main difference between the Russian case and global trends in the transformation of migrants’ family memory is the dominance of first-generation migrants influencing family commemorations. It was concluded that “parallel” communities of memory between migrants and the host society are preserved. With regard to migrants, this was expressed in their openness only to the Russian language, while their attitude towards Russian traditions and festive culture was neutral. Turning to the generational features of the transmission and reproduction of family memory revealed an increase in differences between the first and second generations. Based on the three most common ways of relating to the family past in the second generation (reluctance to adopt, uncritical perception of traditions, co-production of common meaning), potential conflict zones were identified in intergenerational relationships regarding shared family memories.
The phenomenon of the Z-Telegram in the coverage of events in Ukraine
Authors: Chirkin Dmitrii Yur'evich , Kolmakov Andrei Dmitrievich , Skupov Mikhail Vasil'evich
Published: January 2024

The purpose of the study is to identify and describe the phenomenon of Z-Telegram channels against the background of the general state of the information field with the theme of a special military operation. The subject of the study is the image of a politician or authority formed by Z-channels. The authors focus on the concept of Z-channels, the features of their content, as well as the factors of the appearance of these channels. The key features of the Z-channels were the concentration on combat operations, the assessment of the politician through the prism of combat operations and criticism of the command and authorities. The differences between Z-channels and traditional media are studied in detail. The prospects for the formation of political communities based on Z-channels are considered. The article analyzes the reasons for the popularity of Z-channels and their role in covering a special military operation. The article examines the influence of the personality of the author of the channel on the attitude towards the key actors of the special military operation. Special attention is paid to the differences in the subject of the channels. The method used was the method of content analysis of the collected material, which includes posts in these most famous Z-channels during the winter of 2022-2023. The scientific novelty of the research lies in the study of the phenomenon of Z-channels in the Telegram as an alternative to traditional media, as well as the consideration of Z-channels as a prototype for the formation of a new type of political opposition to the current political system. The results of the study, presented as conclusions, showed that Z-channels can form a common agenda independently of each other, while having similar views. So, all channels broadcast a negative image to the official representatives of the Ministry of Defense of the Russian Federation, and at the same time broadcast a moderately positive image to Prigozhin. This allows us to conclude that for a number of reasons discussed in the study, Z-channels on the Telegram social network can form and broadcast their own agenda, including one that differs from the official one, and also have a very large audience.
Selective approaches to the definition of mechanisms for the implementation of import substitution policy at the regional level
Authors: Elshin Leonid Alekseevich , Mingazova Yuliya Georgievna , Savushkin Maksim Vladimirovich , Mingulov Almaz Minvazykhovich
Published: January 2024

The subject of the study is the economic relations of the regions of the Russian Federation within the framework of foreign trade relations with non-CIS countries. The regions of the Volga Federal District of Russia are the object of research. The authors consider in detail such aspects of the topic as structural parameters of supplies of goods from abroad to the regions of the Volga Federal District; justification of their critical level in the context of the studied commodity groups and country differentiation; development of proposals aimed at the formation of selective and adaptive measures for the implementation of the import substitution policy to regional peculiarities. Particular attention is paid to the issues of substantiating the doctrine of the need for a selective regional strategy for the implementation of import substitution policy under sanctions pressure, which provides for the need to abandon frontal measures of state support in the sphere of emerging perturbations of external inter-cooperative relations. The main conclusion of the study is the need to implement a selective strategy for adapting the national economy to the localization of imports of goods and services based on the identification of regional features of import dependence in the context of key commodity groups. A special contribution of the authors to the study of the topic is the identification of possible threats to the sustainable development of regional economic systems in the context of sanctions, taking into account the structural analysis of import supplies from unfriendly countries. Based on the review, systematization and analysis of data from the Federal Customs Service, the key parameters of critical imports for the regions of the Volga Federal District are identified and the concept of implementing an adaptive import substitution policy is proposed.
Adam Smith on uncertainty and security. Part 1.
Authors: Bekryashev Andrey
Published: January 2024

The subject of the article is the study of Adam Smith's conceptual ideas about uncertainty and security and their relationship. Methods of conceptual analysis are used in two versions. The presentist approach aims to interpret Smith's ideas about uncertainty in terms of modern concepts (fundamental and epistemological uncertainty and their forms). The antiquarian approach aims to explain the features of Smith's concepts in the context of the theological, philosophical ideas and methodological ideas he shared. The analysis is used in presentist and antiquarian variants. The first part of the article shows that Smith uses several concepts of uncertainty. One of them corresponds to the modern idea of epistemic uncertainty. Smith also develops an original concept of ambiguity, which, in the author's opinion, can be most constructively understood from the standpoint of a generalized version of Niels Bohr's principle of complementarity. However, in Smith's system this type of uncertainty is of fundamental importance and is associated with the feeling of sympathy. The third part of the article examines the influence of theological ideas on Smith's ideas about uncertainty. The peculiarities of scientists' interpretation of the uncertainty of the future are explored. The second part also examines selected conceptual relationships between uncertainty and security. In Smith's theoretical system, the reduction of uncertainty plays a special role in ensuring the long-term survival of society (ensuring security - in the presentist interpretation). Smith associates it with following the rules of the virtue of justice, which have the greatest certainty and, functioning like the rules of grammar, perform the function of creating order.
Study of the Relationship Between Loneliness and Suicidal Risks among the Adolescents and the Elderly
Authors: Tulitbaeva Galina Fanilevna , Khaidarshina Regina Nagimovna
Published: January 2024

The article presents the results of the study which identifies the concatenation between loneliness and the degree of suicidal risk among teenagers and the elderly. Subject being examined: loneliness and suicidal risk from the point of view of their concatenation among teenagers and the elderly. The methods which were used are the Differential Questionnaire showing the Experience of Loneliness (E. N. Osin, D. A. Leontiev), the method of diagnosing the level of subjective feeling of loneliness (D. Russell, M. Ferguson), the method «Map of the risk of suicides» (modified by L. B. Schneider), the SAD PERSONS Scale (Patterson et al.), Hopelessness Inventory (A. Beck), mathematical and statistical analysis. The study is novel in that it is for the first time when the system of concatenation between the experience of loneliness and suicidal tendencies among teenagers and the elderly was developed. As part of the study, there was established the concatenation between the experience of loneliness and the level of suicidal risk in both groups among those being examined. The research shows that the subjective understanding of the level of one's real loneliness as high, the negative attitude towards one's loneliness and the dependence on communication are associated with a high level of suicidal risk, while the positive attitude towards loneliness and a low degree of experiencing real loneliness are associated with a low level of suicidal risk. The results obtained prove that there is a way to overcome the negative aspects of loneliness and reduce the number of suicides, which is connected with a change of one's attitude towards loneliness, the ability to self-control, the ability to find and use the internal and external resources of the individual. The conclusions reached will be useful for both psychologists and professionals working with teenagers and elderly citizens.
Pengaruh Person-Job Fit dan Person-Organization Fit Terhadap Kinerja Karyawan PT. Sumatraco Langgeng Makmur
Authors: Sayuga Hadad Dinanjar , Ambarwati Arie , Fatmawati Rini
Published: January 2024

Penelitian ini dilatarbelakangi oleh fakta atau fenomena yang terjadi saat ini yaitu kesesuaian antara kepribadian dengan pekerjaan (Person-Job Fit) dan kesesuaian antara kepribadian dengan lingkuangan/budaya perusahaan (Person-Organization Fit) yang masih berpengaruh terhadap Kinerja Karyawan pada PT. Sumatraco Langgeng Makmur. Penelitian ini menggunakan pendekatan kuantitatif dan jenis penelitian yang digunakan adalah eksplanasi/hubungan. Sampel yang digunakan dalam penelitian ini berjumlah 225 responden. Hasil dari penelitian ini melalui metode regresi berganda dapat disimpulkan bahwa secara parsial variabel person-job fit memiliki pengaruh signifikan terhadap kinerja karyawan dengan nilai signifikansi 0,000 < 0,05 dan juga nilai thitung (5,577) > ttabel (1,972). Sedangkan variabel person-organization fit juga memiliki pengaruh signifikan terhadap kinerja karyawan dengan nilai signifikansi 0,000 < 0,05 dan juga nilai thitung (3,941) > ttabel (1,972). Secara simultan variabel person-job fit dan person-organization fit berpengaruh signifikan terhadap kinerja karyawan dengan nilai signifikansi 0,000 < 0,05 dan juga nilai Fhitung (42,088) > Ftabel (4,7).
Benefits and Challenges of Electric Propulsion for Commuter Aircraft
Authors: Kruger Michael , Uranga Alejandra
Published: January 2024

This paper presents the Library for Unified Conceptual Aircraft Synthesis (LUCAS) sizing and optimization framework, which is largely based on Stanford’s Stanford University Aerospace Vehicle Environment (SUAVE). LUCAS is applied to a commuter mission carrying 19 passengers. Results show that energy usage benefits depend on mission range and electrical component technology and that reserve requirements play a significant role in the feasibility of electrified aircraft. It is found that storing more energy in batteries rather than fuel reduces the mission energy requirement at the expense of aircraft weight growth. All-electric aircraft could provide onboard energy savings of upward of 30% for a 180 km mission, but this would only become feasible if battery specific energy reached the high value of [Formula: see text]. Range could be increased to 550 km if part of the reserve mission requirements is relaxed. Under more realistic technology assumptions, a hybrid design storing energy in fuel and batteries could fly commuter missions with energy savings of 6%. A beneficial use case of hybrid configurations is a mode of operation where the aircraft uses only batteries during the main mission and fuel to store all the reserve energy. If reserves are not required for a particular flight, energy savings are still maximized, while the availability of fuel ensures certification requirements are met with fewer penalties.
Characterization of Out-of-Plane Curved Fluidic Oscillators
Authors: Spens Alexander , Brandt Patrick J. , Bons Jeffrey P.
Published: January 2024

A novel fluidic oscillator design, in which the oscillator is curved along the primary flow direction, was evaluated. The effects of mass flow rate, hydraulic diameter, aspect ratio, curvature radius, surface roughness, inlet orientation, and nonconstant curvatures were experimentally investigated. Measurements of the oscillation Strouhal number, discharge coefficient, spreading angle, and sweeping angle were used to characterize the jet. The resulting oscillators were found to fall into one of three categories: oscillated at the same frequency and sweep angle as conventional flat oscillators; oscillated at a slightly higher frequency and lower sweep angle than flat oscillators; or no dominant oscillation frequency detected and with no sweeping action. An unsteady Reynolds-averaged Navier–Stokes computational fluid dynamics simulation revealed fundamental differences in the internal flow mechanisms between flat and curved oscillators that drive the sweeping jet. The curvature between 37.5 and 62.5% of the total length, or the region from the inlet nozzle to halfway through the main chamber, was a primary factor influencing the response type of a design. Due to the curvature of these oscillators, they have the ability to be used in geometrically constrained spaces, such as the leading edge of wings and turbine vanes.
Impact of Anxiety and Depression on Quality of Life in Elderly Patients with Brain Tumor
Authors: Betsy Baby  , Ajilal P.  , Ammu G. Nair  , Vaishakh Bharathan
Published: January 2024

Background: Psychological health plays a crucial role in the well-being and quality of life. Diagnosis of brain tumor and subsequent surgery can have a significant impact on a patient’s well-being especially with the natural course of ageing. The uncertainty of the diagnosis, the potential impact on daily functioning, after effects of the surgery can all contribute to psychological distress, including anxiety and depression in an elderly person. The aim of the present study is to find the influence of depression and anxiety on the quality of life of elderly people who underwent brain tumor resection. Method: Using descriptive research design a sample of 50 post operative patients between age group 55-75 were selected. The Malayalam version of HADS and WHOQOL-BREF were administered along with exploring other sociodemographic variables. Results: Correlational analysis, ANOVA and post hoc tests were employed. The results showed that high anxiety levels were associated with a lower QoL (p = .006). However, depression levels did not have a significant impact on QoL. Additionally, there was a positive correlation between general health and QoL score (r = 0.685, p < .001), indicating that better general health was associated with a better QoL. Conclusion: Study suggest that psychological and physical factors should be considered when assessing and treating the elderly people who underwent brain tumor resection. The results might help the rehabilitation professionals, doctors as well the caregivers of post operative patients to understand their psychological well-being and adapt appropriate measures to support them for speedy recovery as well.
Comprehensive psychological rehabilitation of patients after COVID-19
Authors: Melnikova N. M. , Kotelnikova A. M. , Vinokurova S. P. , Petrova M. N.
Published: January 2024

The article presents a description of the experience of comprehensive psychological support for patients after COVID-19 at the 2nd stage of rehabilitation. One of the difficult challenges of our time has been the spread of COVID-19, which has affected the lives of many people around the world. Like other diseases, this virus can lead to various psychological consequences. That is why, in addition to medical care, patients need comprehensive psychological rehabilitation, which affects the emotional, cognitive and communicative spheres and contributes to the patient’s socio-psychological adaptation and return to an active life. The main consequences after suffering from COVID-19 are disorders of the mental, emotional, cognitive and vegetative spheres, which significantly reduces the quality of life and can lead to a narrowing of social space, conflicts, and disorders of socio-psychological adaptation. The goals of comprehensive psychological rehabilitation of patients after COVID-19: psychological recovery of patients after the disease and their socio-psychological adaptation to the changed situation, helping them copes with the emotional and psychological consequences of the disease and achieving a higher level of wellbeing in life. Psychological rehabilitation of a patient after COVID-19 is aimed at restoring and maintaining mental health and increasing social activity. To assess the dynamics of the psychological state of patients, the following methods were used: Hospital Anxiety and Depression Scale (HADS), Montreal Cognitive Assessment Scale (MOCA), EQ-5D questionnaire, observation and interview. For psychocorrectional work and promoting socio-psychological adaptation, methods of individual and group work were used. To improve daily activity and quality of life, cognitive functions, normalize psycho-emotional status, and increase motivation for rehabilitation, psychological work at the 2nd stage of medical rehabilitation was carried out in the following areas: psychological counseling, cognitive training, art therapy, group work. All 179 patients after undergoing NCVI at the 2nd stage of rehabilitation were discharged with positive dynamics in all targets of correctional work: in the emotional, cognitive and social spheres. The psycho-emotional state was stabilized, anxiety decreased; indicators of concentration, stability of attention, optical-spatial activity increased; The indicators of the self-assessment scale of health and communication motivation increased, too. The results of the work showed that the comprehensive psychological rehabilitation is an important component of medical rehabilitation and is achieved by the joint work of a clinical psychologist, neuropsychologist, speech therapist and other specialists.
Questioning the status quo of Russian as a foreign language: the results of a sociological study
Authors: Krashevskaya N. V. , Podgornaya L. D.
Published: January 2024

The article is devoted to consideration of the issue of the status of the academic discipline “Russian as a foreign language” in the educational structure of training foreign students in Russian higher educational institutions. The problem is very relevant and requires an immediate solution, since this subject still does not have an official code of academic discipline in Russian universities. The paper attempts to answer the question to what extent RFL as a special academic discipline is familiar to Russian and foreign students. The main research method is to conduct a sociological survey of Russian and foreign students studying at several universities in the Russian Federation. In addition, the questionnaires ask a number of questions, the answers to which allow us to see the important differences between RFL as a university academic discipline and other related or related disciplines (for example, a foreign language). The main goal of conducting a pilot sociological study was to clarify the problem of how familiar RFL as a special subject is to one or another social group associated with university activities, and what place this subject, in the opinion of respondents, occupies in the educational structure of a higher educational institution. the object of the study is a special academic discipline in the university curriculum – Russian as a foreign language, and the subject of the study can be considered the perception of the academic discipline by students studying Russian as a foreign language (i.e. foreign students), as well as Russian students who themselves are native speakers of Russian and studies a foreign language. In addition, the subject of the study must include the place that this discipline occupies in the structure of education as a whole, as well as the specifics of teaching this academic discipline in a higher educational institution.
About mentoring in higher education
Authors: Panina S. V.
Published: January 2024

Mentoring has proved most successful in educational practice of the past years and in modern management as a form of increasing professionalism and a technology for effective management. The educational potential of mentoring is based on a person-oriented approach to a developing person, and subject-subject relationships with him. Thanks to mentoring activities, the personal professional competence of students and young specialists is increased through the internalization of positive experience, standards of excellence and values of professionalism. The article describes mentoring models implemented in the modern context. It presents the Mentoring Project developed by A. V. Mordovskaya, Doctor of Pedagogical Sciences, Professor of the Ammosov North-Eastern Federal University. The practice of implementing mentoring programs in Russian universities is considered.
Introduction of terms in the Evenki language in mathematics lessons in primary school
Authors: Ivanova A. V. , Osipova S. I.
Published: January 2024

This article discusses the issue of teaching the Evenk language to younger schoolchildren, familiarization with the culture of the Evenks. The relevance of the research topic is due to the fact that the linguistic situation of the Evenk language in the Republic of Sakha (Yakutia) is assessed as critical, since the use of this language is minimized. The aim of the study is to test the effectiveness of mathematical tasks with a national component in integrated classes of the Evenk language and mathematics. To achieve this goal, we have set the following tasks: to analyze the importance of teaching the Evenk language in the formation of ethno-cultural competence; to develop mathematical problems with a national component; to experimentally test the effectiveness of integrated classes of the Evenk language and mathematics in the formation of ethno-cultural competence of junior high school students. Because of the experimental work carried out, it was revealed that the developed dictionary of educational and mathematical terms in the Evenk language, compiled tasks with a national component in the Evenk language contribute to familiarization with the culture of the Evenk people, forming the ethno-cultural competence of younger schoolchildren. In the future, it is planned to research and develop integrated classes of the native language and the school subject «the world around», teaching them their native language, introducing them to culture.
Linguistic representations of the concept «fire» in the linguoculture of the Evenks
Authors: Ushnitskaya N. Yu.
Published: January 2024

The subject of the study is the semantics of linguistic units involved in the representation of the concept «fire» in the linguoculture of the Evenks. The aim is to describe the concept. Linguocultural and semantic-cognitive approaches to the research of thinking units are applied in the study. The relevance of the topic of the article is determined by the insufficient study of the fragments of the Evenk linguistic picture of the world. Representations about fire exist in the consciousness of many peoples of the world. According to the scientists, they belong to cultural universals. Fire is one of the four natural elements, primary elements. Therefore, there is a cult of fire in the Evenki tradition, as well as in many other ethnic groups. The formation of the concept in the consciousness of the Evenks was influenced by the landscape, historically connected with the territory of their residence, traditional type of economy (hunting), animistic views of nature. The lexicographic material is used to identify linguistic units verbalizing the concept, their semantic analysis is performed, then folklore, art texts, field audio recordings are studied. After that, the linguocultural analysis of these texts is carried out. The texts were recorded from informants living in Kyust-Kemda village, Kalarsky District, Zabaikalsky Krai; Ust-Nyukzha village, Tynda District, Amur Region; Alla village, Kurumkansky District, Republic of Buryatia; Tyanya village, Olyokminsky District, Republic of Sakha (Yakutia). The analysis of the field audio recordings made it possible to identify the value component of mental education and showed that the cult of fire and the perception of fire as a deity are preserved in the consciousness of modern Evenks. This is observed among the groups of Evenks leading traditional hunting and nomadic way of life. Studying folklore, art and poetic texts has allowed identifying the figurative side of the concept. The mental formation under consideration is basic in the consciousness of Evenks and related peoples. The key representative of the concept is the lexeme ‘togo’, used in all the colloquialisms of the Evenki language and Tungus-Manchurian languages, which indicates the archaic nature of this fragment of the linguistic picture of the Evenki world. In addition to the mentioned lexeme, other words are also used in the actualization of mental formation: guluvun, dyaӈe, yandra, otu.
Multimodális képalkotó vizsgálatok szerepe aritmogén mitrális prolapszus szindrómában
Authors: Bőr Angéla , Czimbalmos Csilla , Apor Astrid , Nagy Anikó Ilona , Tóth Attila , Lakatos Bálint , Gellér László , Szegedi Nándor , Vágó Hajnalka , Merkely Béla , Nagy Andrea
Published: January 2024

Bevezetés: A mitrális prolapszus ritka, de klinikailag nem elhanyagolható aritmogén formája malignus kamrai ritmuszavarokhoz és hirtelen szívhalálhoz is vezethet. Célunk az aritmogén mitrális prolapszus szindróma (AMVP) jellemzőinek multimodális feltérképezése volt, különös tekintettel azokra a paraméterekre, amelyek alkalmasak lehetnek az aritmiarizikó becslésére. Betegek és módszerek: 44, mitrális prolapszussal és mitrális anularis diszjunkcióval egyaránt rendelkező beteg részletes kivizsgálását végeztük el, amely tartalmazta az anamnézis és panaszok felmérését, vérnyomásmérést, 12 elvezetéses EKG-t, 24 órás Holtert, transztorakális echokardiográfi a- és szív-mágnesesrezonancia- (CMR-) vizsgálatot. Betegeinket az Európai Kardiológus Társaság konszenzusdokumentumának kritériumrendszere szerint osztottuk aritmogén és nem aritmogén csoportra. Speckle tracking echokardiográfi a segítségével bal kamrai longitudinálisstrain-mérést végeztünk és a mért értékeket egy 20 főből álló, egészséges kontrollcsoport strainértékeivel is összevetettük. Eredmények: A betegek 53%-ánál volt inferior T-hullám-eltérés a nyugalmi EKG-n, 74% panaszolt palpitációt. A syncope előfordulása magasabb volt az aritmogén csoportban (42,1% vs. 12,5%; p=0,038). A betegek 86,4%-ában a mitrális regurgitáció nem haladta meg a közepes súlyosságot. 3D-echokardiográfi a során mért bal kamrai térfogat értékek a normáltartomány felső határát meghaladták, normál bal kamrai ejekciós frakció mellett. A prolapszusos betegek esetében a globális longitudinális strain értéke szignifi kánsan alacsonyabb volt az egészséges kontrollcsoporthoz képest (–20,3±2,4% vs. –21,9±2,0%; p=0,019). A bazális inferolaterális (–22,2±8,8 vs. –28,8±7,0; p=0,008) és inferior (–13,2±6,3 vs. –20,9±4,1; p=0,001) szegmentális strain értékei szignifi kánsan kisebbek voltak a prolapszusos, mint az egészséges kontrollcsoportban. A CMR-felvételeken a betegek 47%-ában ábrázolódott késői kontrasztanyag-halmozás (LGE) az inferolaterális régióban. Következtetések: Az inferior EKG-eltérések és a palpitáció gyakori jelenség mitrális prolapszusos betegekben, azonban alacsony specifi citásuk miatt az aritmiarizikó becslésére nem alkalmasak. Ezzel szemben a syncope alarmírozó jelnek tekinthető. A szegmentális longitudinális strain eltérései jellegzetes mintázatot mutatnak, és az LGE is hasonló lokalizációban jelenik meg, így a bazális inferolaterális szegmentum kiemelt szerepe feltételezhető az AMVP-betegekben.
Ultrahang-kontrasztanyag szerepe dobutamin stressz-echokardiográfia során
Authors: Matus Mercédesz , Kántor Tímea , Vértesaljai Márton , Dénes Mónika , Andréka Péter
Published: January 2024

Célkitűzés: Koszorúér-betegség gyanúja esetén preteszt-probabilitás (PTP) segítségével megállapítható annak rizikója. Közepes PTP esetén funkcionális teszt végzése javasolt. Ilyen a dobutamin stressz-echokardiográfi a (DSE), amelynek diagnosztikus pontossága ultrahang-kontrasztanyag (UCA) segítségével (cDSE) tovább növelhető. Módszerek: Vizsgálatunkba a 2021.01.01. – 2022.12.31. között cDSE-n átesett betegeket vontuk be. Az első 67 beteg esetén osztályoztuk a natív és a kontrasztos 2D képminőséget nyugalomban, és a terhelés csúcsán. Vizsgálatunk célja a cDSE biztonságosságának, diagnosztikus értékének, valamint az UCA képminőségre gyakorolt hatásának vizsgálata. Eredmények: 189 betegnél történt cDSE (68 nő, átlagéletkor: 61,1±12,1 év, BMI: 27,9±4,7 kg/m2 ). A 189 vizsgálatból 182 volt diagnosztikus (96%), közülük 22 (12%) bizonyult pozitívnak. Nyugalomban a natív 2D felvételek képminősége 58%- ban volt jó, UCA adását követően 97%-ra nőtt (p<0,0001). Terhelés csúcsán a natív 2D szegmentumok 52%-ának volt a képminősége nem megfelelő, UCA után ez az arány 2%-ra csökkent (p<0,0001). Utánkövetés során (medián: 442 nap) 2 beteg hunyt el (mortalitás 1%), szívinfarktus egy betegnél sem alakult ki. Következtetések: A DSE biztonságos és magas arányban diagnosztikus vizsgálat, a vizsgálatot követő egy éven belül egyetlen koronáriaeseményt sem észleltünk. UCA adása nélkül célfrekvenciánál a vizsgálatok minősége az esetek kevesebb, mint felénél volt megfelelő, míg UCA adását követően nem megfelelő képminőség nem fordult elő sem nyugalomban, sem a terhelés csúcsán.
Vulnerable Plaque Characteristics at Coronary Computed Tomography Angiography
Authors: Medakovic Petar , Jukic Mladen , Biloglav Zrinka
Published: January 2024

According to morbidity and mortality indicators, cardiovascular diseases are the leading public health issue in the Republic of Croatia and the European Union. Although mortality rates from ischemic disease have been reduced, Croatia is still categorized among countries with high cardiovascular risk. The guidelines of the European Society of Cardiology from 2020 for acute coronary syndrome (ACS) in patients with low to intermediate risk of coronary atherosclerotic heart disease (CHD) recommend coronary computed tomography angiography (CCTA) as an alternative to invasive coronarography. In most patients with suspicion of CHD, CCTA leads to the diagnosis of non-obstructive diseases, which causes the majority of ACS cases. Multi-slice Computed Tomography scanners of the newest generation employ low doses of radiation and low contrast volume to reliably show the characteristics of vulnerable plaque: (i) positive remodeling, (ii) low attenuation plaque, (iii) spotty calcifi cation, and the (iv) napkin-ring sign. Due to positive remodeling, these plaques are often non-obstructive, and according to the CAD-RADS 2.0 guidelines from 2022 all their characteristics should be specifi cally emphasized in CCTA fi ndings. Based on the assessment of the prognostic value of vulnerable plaque characteristics for adverse cardiac events, CCTA has been shown to be equally valid as other invasive diagnostic methods. Additionally, it was shown to be useful in indicating the optimal medication therapy and monitoring its eff ects. The results of large international randomized trials indicate the direction of the treatment approach for vulnerable plaque.
Képalkotó vizsgálatok szerepe infektív endocarditisben a 2023-ban megjelent European Society of Cardiology Guideline tükrében
Authors: Révész Katalin , Czibor Sándor , Dudás Ibolyka , Jenei Zsigmond , Jermendy Ádám Levente , Müller Gábor , Peskó Gergely , Pozsonyi Zoltán
Published: January 2024

A képalkotó technikák fejlődése jelentős változásokat hozott az infektív endocarditis (IE) diagnosztikájában és kezelésében. A 2023-ban közzétett Duke – International Society for Cardiovascular Infectious Diseases kritériumok, valamint a szintén ebben az évben megjelent European Society of Cardiology (ESC) guideline egyaránt részletesen kitér a képalkotó vizsgálatok szerepére, meghatározva az egyes modalitások pontos helyét a diagnosztikus és kezelési folyamatban. Echokardiográfi a végzése továbbra is elengedhetetlen: a kórkép gyanúja esetén az első, kötelező képalkotó vizsgálat. Megkerülhetetlen szerepet játszik a diagnózis megállapításában, az intrakardiális szövődmények kimutatásában, a sebészi indikáció elbírásában, a kórkép követésében egyaránt. Kardiális CTA (komputertomográfi a-angiográfi a) segítséget nyújthat a natív vagy a műbillentyű IE diagnosztikájában, a lokális terjedés megítélésében, teljestest CT (komputertomográfi a) pedig az extrakardiális szövődmények kimutatásában. A nukleáris képalkotás elsősorban műbillentyű IE, valamint beültetett intrakardiális eszközök, komplex intrakardiális és aortaimplantátumok infekciója esetén szolgáltat fontos információt. Emellett szeptikus embolizáció és a bacteriaemia forrásának igazolására is hasznos modalitás. A központi idegrendszert érintő komplikációk vizsgálatában az MR (mágneses rezonanciás képalkotás) is szerephez jut. A 2023-as ESC-ajánlás képalkotást érintő legfontosabb megállapításait az 1. ábrán foglaltuk össze.
A Fabry-kór szívérintettségének diagnosztikája – fókuszban a szív mágneses rezonanciás vizsgálata
Authors: Dohy Zsófia , Balla Dorottya , Vincze Viktória , Juhász Vencel , Szabó Liliána , Becker Dávid , Vágó Hajnalka
Published: January 2024

A Fabry-kór egy X-kromoszóhához kötötten öröklődő lizoszomális tárolási betegség, ami különböző szervekben glikoszfi ngolipidek felhalmozódásával jár, leggyakrabban a szívben, vesékben, erekben és a perifériás idegekben. A szerteágazó és aspecifi kus tünetek miatt a diagnózis sokszor éveket késik. A betegség klasszikus formájában a tünetek már gyerekkortól jelentkezhetnek, úgymint neuropátiás fájdalom, cornea verticallata, emésztőrendszeri tünetek, hypohidrosis, angiokeratoma, később proteinuria, majd krónikus veseelégtelenség, balkamra-hipertrófi a, szívritmuszavarok, halláskárosodás és stroke léphet fel. A Fabry-kór nem klasszikus, késői formájában gyakran csak a szívérintettség jelenik meg. A glikoszfi ngolipidek lerakódása a szív bármely sejt- és szövettípusát érintheti, ami koncentrikus balkamra-hipertrófi ához, diasztolés diszfunkcióhoz, a szívizom fi brotikus átépüléséhez, vezetési zavarokhoz, illetve kamrai ritmuszavarokhoz vezet. Laborvizsgálattal gyakran troponinpozitivitás, illetve emelkedett NT-proBNP-szint mérhető. A betegség EKG megjelenésére jellemző a hipertrófi át jelző nagy QRS-amplitúdók, negatív T-hullámok, bradycardia, rövid PQ-szakasz, előrehaladottabb betegségnél azonban AV-blokk is kialakulhat. A Fabry-kór diagnózisát leginkább segítő képalkotó módszer a szív mágneses rezonanciás vizsgálata, amellyel a betegségre típusos eltérések a basalis inferolateralis szegmentumban ábrázolódó midmiokardiális fi brózis, illetve a lipidfelhalmozódás okozta alacsony T1-mapping érték. Fabry-kór gyanúja esetén a diagnózis az α-galaktozidáz-A enzim alacsony aktivitásának, illetve a GLA-gén patogén mutációjának igazolásával állítható fel.
Életmentő COVID-19? Egy ritka malignus szívtumor, a primer kardiális intimalis sarcoma incidentalomaként történő felfedezése és ellátása a COVID-19-pandémia idején
Authors: Majoros Zsuzsanna , Székely László , Kiss Róbert Gábor , Szögi Emese , Greschik István , Pál Gabriella , Sápi Zoltán , Kiss Nóra , Duray Gábor Zoltán
Published: January 2024

A primer malignus szívtumorok előfordulása ritka. Mivel sokáig tünetmentesek lehetnek és a diagnózis pillanatában már többnyire előrehaladott stádiumban vannak, ezért prognózisuk rossz. A kivizsgálás során fontos szerep jut a különböző képalkotó modalitásoknak, különösen a szív-MR-vizsgálatnak, amely a pontos anatómiai leképezés mellett noninvazív szöveti karakterizációt is lehetővé tesz. Munkánkban egy 41 éves nőbeteg esetét ismertetjük, akinél a COVID-19-pandémia idején incidentalomaként került felfedezésre a primer malignus szívtumorok legritkább szövettani típusa, a kardiális intimalis sarcoma. A korai stádiumban komplett sebészi reszekción átesett, azóta onkológiai gondozás alatt álló beteg utánkövetése során készült kontroll képalkotó vizsgálatok sem lokális recidívát, sem távoli áttétet nem igazoltak, a páciens a daganat felfedezése után 10 hónappal tumormentes.