bluuebunny/crossref_metadata_2025_split huggingface dataset:
Involvement of the population in active leisure (on the example of the social project «Active Parks»)
Authors: Rebrynа A. A. 
Published: March 2024

The public health system is one of the most important factors for the preservation of the human capital of the state and the further successful development of society in general. Effective involvement of the population in leading a healthy lifestyle acquires strategic importance for the country and its future, as it is a category that is realized in various senses (biological, medical, psychological, economic, social, historical, cultural, social, philosophical, etc.).
Caring for the health of the population requires focusing efforts on finding effective and efficient mechanisms to involve the population in leading a healthy lifestyle. Analysis of the experience of implementing existing practices of physical activity proves that various forms of involvement of different population groups in active leisure are an effective tool.
The phenomenon of «population health» is considered as a multi-component construct, the structure of which combines physical, social, spiritual, emotional, intellectual, and cultural components related to the vital activities of a person and society. The article reveals the role of active leisure and a healthy lifestyle for preserving and strengthening health, and describes the principles of organizing active leisure (principle of subject-subject interaction; social compliance; self-development and self-activity; integrity and mobility; innovation). An example of useful and content-filled active leisure is the social project «Active parks - locations of healthy Ukraine». The project is implemented to promote a healthy lifestyle. Successive implementation of the stages of this project guarantees positive results and contributes to increasing the level of physical activity and health of the population.
The fundamentals of education of willpower qualities in higher education acquires in the process of engagement in sports and health tourism
Authors: Soha Serhii , Dobrovolskyi Volodymyr 
Published: March 2024

The article provides a theoretical analysis of the education of willpower in students of higher educational institutions in the process of sports and health tourism. It was established that in modern conditions, insufficient attention is paid to the problem of education of strong-willed qualities of student youth in institutions of higher education. The necessity of researching the foundations of education of determination, endurance and self-control, development of relevant criteria and indicators of education of willpower in the process of sports and health tourism has been proven. The study of scientific literature allowed us to establish that in recent years, a number of studies have been conducted devoted to certain aspects of solving the problem of education of volitional abilities (purposefulness, endurance, self-control) of students of higher educational institutions in the process of learning. sports and health tourism.
The article defines, specifies and characterizes the criteria and indicators of education of willpower of students of higher educational institutions in the process of sports and health tourism.
The cognitive criterion was determined by the following indicators (students' knowledge of willpower qualities (determination, endurance, self-control) and their necessity during sports and health tourism activities; understanding of the importance of self-control, stress resistance, self-discipline as a means of cultivating willpower qualities, students' awareness of the ability to self-regulate behavior , control of one's own emotions and reactions in various situations).
The motivational criterion was determined according to the following indicators (interest of higher education students in cultivating determination, endurance, and self-control; desire to cultivate strong-willed qualities in the process of engaging in sports and health tourism; desire to exercise self-discipline). exercise self-control, overcome obstacles in training and field conditions).
The activity-practical criterion provided for the following indicators (the willingness of higher education students to show determination, endurance and self-control in the process of sports and health tourism; the ability to exercise self-control, be resistant to stressful situations, and exercise self-control). -discipline in the process of educational and training and competitive activities; the ability of student youth to self-regulate their behavior and the ability to help the teacher-coach in the organization of classes and competitions in sports and health tourism).
Extreme High Speed Laser Application: A Revolution in Coating and Repair Technology
Authors: Barras Josh 
Published: March 2024

Abstract
The extreme high-speed laser application (EHLA) process offers efficient deposition of high-performance materials in aerospace manufacturing, providing key advantages compared to conventional laser cladding. As a sustainable alternative to chrome plating, EHLA excels in material integrity, efficiency, and performance, while reducing costs compared to thermal spray and conventional laser cladding. This article discusses how EHLA can help to address many sustainability concerns within the manufacturing sector.
Investigation of Long Term Creep Damage Behavior and Life Assessment of Ni Based Weldment
Authors: Tokairin T. , Kitamura M. 
Published: March 2024

Abstract
Continuous and extensive works have been going to develop 700°C A-USC (Advanced Ultra Super Critical) power plants worldwide. Since Japanese national project launched in 2008, Ni based alloy HR6W (45Ni-24Fe-23Cr-7W-Ti, ASME Code Case 2684) was selected as one of the promising candidate materials of A-USC boiler tube and pipe for long-term creep strength evaluation and field exposure test. In the present study, to establish the creep damage and life assessment method for Ni based alloy component, long-term creep rupture properties, microstructural stability, and creep damage morphology of HR6W weldment were experimentally investigated. Creep tests of HR6W weldment were conducted at temperature range of 700 to 800°C for durations up to 70,000 hours. Failure behavior of creep void formation and creep crack growth was identified, and damage mechanism of weldment during creep were discussed and characterized. Furthermore, uniaxial interrupted creep tests were carried out, the creep damage evaluation was conducted and life assessment approach was proposed based on the metallographic quantification evaluation of creep void and microstructure evolution. It demonstrated the possibility and validity to evaluate creep damage of Ni based alloy component with creep void and microstructure parameters.
Linking Performance of Parent Grade 91 Steel to the Cross-Weld Creep Performance Using Feature Type Tests
Authors: Siefert John A. , Parker Jonathan D. , Thomson Rachel C. 
Published: March 2024

Abstract
Grade 91 steel has been widely utilized in power plants over the last 20 years. Its specification worldwide has dramatically increased since the acceptance of Code Case 1943 for this material in 1983. Recent evaluation of a combination of ex-service Grade 91 steel components and virgin material has provided a unique opportunity to independently assess the performance of a combination of base metal and weldments. This approach has been grounded in the fundamental objective of linking metallurgical risk factors in Grade 91 steel to the cross-weld creep performance. Establishing critical risk factors in 9Cr steels is regarded as a key consideration in the integration of a meaningful life management strategy for these complex steels. The potential metallurgical risk factors in Grade 91 steel have been fundamentally divided into factors which affect strength, ductility or both. In this study, two heats of ex-service Grade 91 steel which exhibit dramatic differences in strength and ductility have been evaluated in the ex-service condition and re-heat treated to establish a relevant set of strength:ductility variables. This set of variables includes [strength:ductility]: low:low, medium:low, low:high and medium:high. The influence of these strength:ductility variables were investigated for feature type cross-weld creep tests to better evaluate the influence of the initial base material condition on cross-weld creep performance.
Influence of Apparatus Design and Test Method on the High Temperature Solid Particle Erosion of Nimonic 80A
Authors: Fry A.T. , Gorman D. , Crocker L.E. , Gee M.G. , Gant A. , Nicholls J. , Rose T. , Cernuschi F. , Lorenzoni L. , Guardamagna C. 
Published: March 2024

Abstract
Work has been progressing over recent years to develop a standard test method for high temperature solid particle erosion testing. Early in 2015 this standard was published by ASTM as G211-14 Standard Test Method for Conducting Elevated Temperature Erosion Tests by Solid Particle Impingement Using Gas Jets. To support the development of this standard the European funded METROSION project has been conducting a comparison of different apparatus which employ different nozzle geometries, acceleration lengths, stand-off distances and heating and accelerating processes. The aim is to understand the influence these instrumental and experimental parameters have on the measured erosion rate and erosion mechanism. As part of this work three very distinct approaches have been compared using a common erodent and test pieces. Measurements have been performed at 600 °C with particle velocities of 50 to 320 m/s, using different stand-off distances, acceleration lengths and nozzle diameters for impact angles of 30 and 90°. This is the first time a comprehensive comparison of these parameters has been conducted and shows the relative influence of these experimental variables.
Comparison of the Effects of Conventional Heat Treatments on Cast and Selective Laser Melted IN939 Alloy
Authors: Philpott W. , Jepson M. A. E. , Thomson R. C. 
Published: March 2024

Abstract
Additive manufacturing (AM) is a process where, as the name suggests, material is added during production, in contrast to techniques such as machining, where material is removed. With metals, AM processes involve localised melting of a powder or wire in specific locations to produce a part, layer by layer. AM techniques have recently been applied to the repair of gas turbine blades. These components are often produced from nickel-based superalloys, a group of materials which possess excellent mechanical properties at high temperatures. However, although the microstructural and mechanical property evolution during the high temperature exposure of conventionally produced superalloy materials is reasonably well understood, the effects of prolonged high temperature exposure on AM material are less well known. This research is concerned with the microstructures of components produced using AM techniques and an examination of the effect of subsequent high temperature exposures. In particular, the paper will focus on the differences between cast and SLM IN939 as a function of heat treatment and subsequent ageing, including differences in grain structure and precipitate size, distribution and morphology, quantified using advanced electron microscopy techniques.
Evaluating The Effect of Cold Work on Supercritical Oxidation of Boiler Tube Materials
Authors: Yli-Olli Sanni , Tuurna Satu , Auerkari Pertti , Penttilä Sami 
Published: March 2024

Abstract
For higher efficiency and competitive overall performance, it would be an advantage to be able to safely exceed the highest operational values, currently up to about 600-620°C/25-30 MPa in supercritical (SC) boiler plants. Under such operating conditions the oxidation resistance in SC water tends to limit the potential for further improvement of efficiency. The way to increase the oxidation resistance of traditional austenitic boiler tubes e.g. TP 347H is to do additional cold work on the boiler tube inner surface. In the current paper the effect of cold work on the oxidation resistance of TP347H and TP347HFG has been evaluated by shot peened samples with different parameters and subjecting those samples to supercritical oxidation exposure. The results show an improvement in the oxidation resistance of the alloys, especially in the large grained alloy TP347H. Also the uniformity of the deformation layer was seen to have an influence on the oxidation resistance, since the oxide nodules start to grow at locations with the thinnest or no deformation layer.
Tenaris New High Steam Oxidation Resistant, Creep Strength Enhanced Ferritic Steel Thor 115
Authors: Minami Y. , Yamamoto Y. , Ortolani M. , Mariani P. , Pint B. 
Published: March 2024

Abstract
A new martensitic steel for power generation applications was developed: Tenaris High Oxidation Resistance (Thor) is an evolution of the popular ASTM grade 91, offering improved steam oxidation resistance and better long-term microstructural stability, with equal or better creep strength. Thanks to its design philosophy, based on consolidated metallurgical knowledge of microstructural evolution mechanisms, and an extensive development performed in the last decade, Thor was engineered to overcome limitations in the use of ASTM grade 91, above 600 °C, particularly related to scale growth and liftoff. After laboratory development, Thor was successfully validated at the industrial level. Several heats up to 80 metric tons were cast at the steel shop, hot rolled to tubes of various dimensions, and heat treated. Trial heats underwent extensive characterization, including deep microstructural examination, mechanical testing in the as-received condition and after ageing, long-term creep and steam oxidation testing. This paper presents an overview of metallurgical characterization performed on laboratory and industrial Thor material, including microstructural examination and mechanical testing in time-independent and time-dependent regimes. Data relevant to the behavior and the performance of Thor steel are also included.
Manufacturing Experience of Thor 115 Components
Authors: Mariani P. , Fullin L. , Marinari A. , Ortolani M. , Baietta S. 
Published: March 2024

Abstract
A new martensitic steel for power generation applications was developed: Tenaris High Oxidation Resistance (Thor) is an evolution of the popular ASME grade 91, offering improved steam oxidation resistance and better long-term microstructural stability, with equal or better creep strength. Thanks to its design philosophy, based on consolidated metallurgical knowledge of microstructural evolution mechanisms, and an extensive development performed in the last decade, Thor was engineered to overcome limitations in the use of ASME grade 91, yet allow being processed in the same fashion, permitting the re-use of consolidated best practices for boiler fabrication. In order to evaluate the possibility to produce complete pressure part systems, various tests to manufacture components have been performed on Thor pipes and tubes (i.e. finning, bending, welding) and on Thor forged material (i.e. flanges). In all cases consolidated industrial best practices used on ASME grade 91 were applied, and resulting properties met ASME requirements.
On the Corrosive Behavior of Nickel-Based Superalloys for Turbine Engines: Cyclic Oxidation and Its Impact on Crack Propagation
Authors: Kraemer Karl Michael , Woellmann Lorenz , Mueller Falk , Oechsner Matthias 
Published: March 2024

Abstract
Cast nickel-based superalloys used as structural materials for gas turbine parts need to withstand high temperatures and dynamic mechanical loads. When in contact with ambient air, the formation of protective oxide scales causes a depletion of γ’-precipitates in the surface-near region and leaves a weakened microstructure. This environmentally based degradation of the material might be accelerated under cyclic thermal exposure. In this paper, the cyclic oxidation behavior of two cast nickel-based superalloys and one single crystalline variant are investigated: C1023, CM-247 LC and M-247 SX. Exposure tests were carried out under both isothermal and cyclic conditions in air at 850 °C, 950 °C and 1050 °C for times up to 120 h to investigate the impact of thermal cycling. The differences in oxidation mechanisms are analyzed phenomenologically via light and electron microscopy and brought in correlation with the oxidation kinetics, determined based on net mass change and depletion zone growth. An assessment of the impact of precipitation loss on local mechanical strength is attempted via nano-indentation method. The found relations can be transferred onto an acceleration of crack growth under creep-fatigue and thermo-mechanical fatigue conditions.
TRACING THE ANTIBACTERIAL, ANTIFUNGAL AND ANTI-BIOFILM ACTIVITIES OF ROOT EXTRACT BAJAKAH TAMPALA (SPATHOLOBUS LITTORALIS HASSK)
Authors: Setyowati Endang , Irzani Elza Fadia , Mochtar Luthfi Chaerul Fadly , Hamzah Hasyrul 
Published: March 2024

Biofilm is a common causative factor for urinary tract infections due to catheter usage with a percentage of infection around 70-80%. The Bajakah tampala (Spatholobus littoralis Hassk) is one of native plants of Kalimantan which contains phenolic compounds, flavonoids and tannins which are proven to accelerate wound healing, have antibacterial activity, and have very high and strong antioxidant activity. This study aims to determine the antibacterial and anti-biofilm activity of bajakah root extract (Spatholobus littoralis Hassk) on catheter colonies of Staphylococcus aureus, Escherichia coli and Candida albicans and to determine their mechanism of action in vitro. This research is carried out with an in vitro experimental study design using a microplate reader. Extraction was carried out by maceration method using 96% ethanol solvent. The results showed that the ethanol extract of Bajakah tampala (Spatholobus littoralis Hassk) had antibacterial activity against S. aureus with a concentration of 1% w/v of 88.33% ± 0.01 and anti-biofilm activity of 82.21% ± 0.01. E. Coli bacteria had an antibacterial activity of 84.83% and an anti-biofilm activity of 80.11 at a concentration of 1% w/v. C. albicans had an antifungal activity at a concentration of 1% w/v of 82.31% ± 0.01 and anti-biofilm activity of 77.00% ± 0.01. From these results it can be concluded that the ethanol extract of Bajakah tampala (Spatholobus littoralis Hassk) has antibacterial and antifungal activities and the potential as a new anti-biofilm agent against S.aureus, E. coli and C. albicans
CLINICOMORPHOLOGICAL FEATURES, DIAGNOSTIC AND TREATMENT OF CYSTS OF THE MINOR SALIVARY GLANDS
Authors: Chernets V.S. , Chumakova Y.G. 
Published: March 2024

Small salivary gland cysts occupy a large percentage in the structure of oral cavity diseases in children and adults.
The aim of the study is to determine the main diagnostic criteria and treatment tactics for patients with small salivary gland cysts.
Materials and methods. 5 adult patients aged from 21 to 50 years and 2 children aged from 3 and 16 years were examined and surgical removal of small salivary gland cysts was performed. Pathohistologic studies of biopsy material were performed.
Results obtained. Women (85.7%) prevail among the patients with cysts of the minor salivary gland. The average age of the patients was 27,0±6,1 years. The most frequent localization of small salivary gland cysts was the mucous membrane of the lower lip (85,7%). In 5 patients it was confirmed that the cause of cyst formation was mechanical trauma, namely biting or bruising of the lower lip. Clinically, a cyst of the minor salivary gland was a single oval or rounded mass with a size ranging from 0.4 to 1.1 cm. The average size of the cyst was 0.69±0.08 cm in diameter.
According to the results of the pathohistological examination, the extravasation type of cyst of the minor salivary gland was determined in 3 patients, the retention cyst was also determined in 3 patients on the lower lip. A superficial extravasation cyst has been diagnosed on a soft palate in a woman aged 50 years old.
In 3 patients, cystectomy was carried out in a traditional surgical method, in 4 patients with the use of a high-intensity diode laser. Hyaluronic acid gel hyaDENT BG was used to accelerate wound healing after laser ablation.
Conclusion. Based on literature analysis and own clinical observations, the main etiological factors and clinical-morphological signs of various clinical variants of cysts of the minor salivary glands were determined. It is shown that only the mucous retention cyst is a true cyst, because it histologically has an internal epithelial lining.
STATE OF PERIODONTAL TISSUES IN CHILDREN LIVING IN EDUCATIONAL AND REHABILITATION CENTERS
Authors: Chukhray N.L. , Danylyuk D.V. 
Published: March 2024

Assessment of periodontal tissues state in children from educational and rehabilitation centers aimed at further monitoring and development of therapeutic and preventive measures is an urgent task of modern dentistry.
The purpose of the study was to determine the periodontal tissues state in children from educational and rehabilitation centers (ERC).
Research material and methods: 182 children aged 7 to 15 from communal institutions of the Lviv Re-
gional Council (CI LRC) and 165 children of the same age from the secondary schools (comparison group) have been examined. The periodontal tissues state was assessed on the basis of clinical examination, the Schiller-Pysarev’s test and the Papillary-Marginal-Alveolar index (PMA) (Parma, 1960).
Research results and their discussion: It was established that chronic catarrhal gingivitis was found in the average of 71,68±4,25% of children aged 7-15 years from the ERC, which is significantly higher than the children of the comparison group – 46,75±3,51% (р<0,001). With age, the prevalence of CCG increases and in the age group of 10-12 years, accounting on average for 81,53±7,28%, which is by 1,7 times higher than in children of the comparison group (р<0,001). In children aged 13-15 years, the frequency of CCG is by 1,4 times higher than that in children of the comparison group and by 1,2 times higher than that of children aged 7-9 years.
The analysis of the results shows that in all age groups, the children from the ERC have a mild degree of CCG and, on average, accounted for 57,83±7,28%, which is by 1,4 times lower that in the comparison group (79,76±3,79%), and the average degree of CCG is much higher – 37,89±3,68%, respectively, in children of the comparison group (18,79±3,45% (р1<0,001, р2<0,001)). The significant prevalence of a severe degree of chronic catarrhal gingivitis in children of 7-9 years old from ERC (8,33±3,25%) is revealed.
Therefore, the findings of the study indicate a significant prevalence of inflammatory processes in the periodontal tissues of children from ERC, which must be taken into account in providing of dental care for children who are in such institutions, and should be actively implemented in treatment and prophylaxis measures to prevent the further development of pathological processes in periodontal tissues.