Prydniprovs’ka State Academy of Civil Engineering and Architecture

Purpose. The scientific novelty of this study lies in the identification and structured interpretation of thematic clusters that characterize the contemporary research landscape of rehabilitation in martial arts. To conduct an analytical review of publications devoted to the problem of rehabilitation in martial arts using the VOSviewer software tool in the PubMed database. Material & Methods. To create the study sample as of December 31, 2025, a bibliometric analysis of data from the PubMed database was performed. The search was conducted using the key phrase “rehabilitation in martial arts”. Publications from 2001 to 2025 were analyzed. VOSviewer version 1.6.19 was used, applying keyword analysis and direct citation analysis with the construction of bibliometric maps, cluster density visualization, and citation weights. Results. Using VOSviewer 1.6.19, a total of 1111 publications were identified. All publications were written in English. A substantial increase in the number of publications was observed in each five-year period, which can be explained by the growing interest in and popularization of research on rehabilitation in martial arts. Overall, 4713 researchers from 2943 organizations studied rehabilitation issues across various martial arts disciplines. The publication activity of 1049 authors with a link strength greater than zero was analyzed. These authors were grouped into 41 clusters, characterized by 5333 links with a total link strength of 6836. The most productive authors were Tsang W. (25 publications), Wayne P. (23), Li F. (21), Tao J. (19), Chen L. (17), Huang J. (15), Yen G. (14), Franchini E. (13), and Wang C. (13). For network visualization, 371 elements (keywords) were selected and grouped into 9 clusters. The network included 14701 links with a total strength of 67,750. The most prominent research topics were centered around the keywords “humans”, “male”, “martial arts”, “adult”, “female”, “aged”, “tai ji”, “exercise”, “treatment outcome” and “quality of life”. Overlay visualization demonstrated a clear evolution of scientific research: from general assessment of functional status and risk prevention (early stage), through the implementation of specialized rehabilitation methods (transitional stage), to individualized physical rehabilitation programs with an emphasis on motor activity control and exercise tolerance (modern stage). Conclusions. Using the VOSviewer software, a bibliometric analysis of publications indexed in the PubMed database was conducted, revealing a steady increase in scientific interest in rehabilitation in martial arts, as evidenced by a significant growth in the number of publications over the analyzed period. A high level of international scientific cooperation was identified, reflected in the wide range of authors, institutions, and interdisciplinary links. The analysis of bibliometric maps made it possible to identify nine key thematic clusters encompassing sports, clinical, psychosocial, and preventive aspects of rehabilitation. The leading research directions focus on recovery from sports injuries, improvement of the functional state of the musculoskeletal system, quality of life, and mental health. Overlay visualization confirmed the evolution of scientific approaches – from basic functional and clinical studies to contemporary individualized physical rehabilitation programs with load control. The obtained results confirm the need for further research aimed at integrating rehabilitation measures directly into the structure of the training process, as well as at developing scientifically grounded models of long-term athletic recovery.

The effectiveness of thin plasma coatings with titanium nitride (TiN) applied by the method of condensation in ion baths (IB) on the working surface of molds under the pressure of copper alloys (steel 4Kh5MFS and 5KhNM) was investigated. It has been shown that coating with a thickness of up to 5 m significantly increases the durability of molds: before the first regrinding by 1.5–2.5 times (3–5 thousand cycles versus 2 thousand without coating), and the core life before failure by 5–6 times (not less than 12 thousand cycles). It has been established that after removing the coating (when regrinding to a depth of ≥20 µm), the drying function is preserved due to the diffusion of titanium in the near-surface steel balls during thermal cycling. Titanium, which diffuses, creates dispersed inclusions of a foldable structure (Ti-N and Ti-V-N) with a size of 2…10 μm, which plays the role of the essential phase, moving between the dislocation and the moving support of the thermal fatigue. The microhardness of the surface ball after operation and regrinding increases up to 750…800 MPa (versus 450…480 MPa for uncoated steel). The phenomenon of the mechanism of “self-adhesive” value for the structure of cerated diffusion of titanium and the creation of non-metallic inclusions of optimal size has not been described before in the literature with ionplasma coatings and is still new approach to increasing the resource of molds for casting under the pressure of aggressive copper alloys.

It is considered that markers of local inflammation (including exhaled NO) represent the status of inflammation during COPD better then markers of systemic inflammation especially in stable phase. But there is not enough information what systemic biomarker is the most similar to them. <bold>Aim:</bold> to determine the significance of systemic biomarkers (C-reactive protein (CRP), fibrinogen, matrix metalloproteinase (MMP)-2, 9, hyaluronic acid (HA) in stable COPD in comparison with marker of local inflammation (exhaled NO). <bold>Methods:</bold> We determine exhaled NO level, plasma biomarkers in 15 patients with verified stable COPD (age – 60,4±0,94 years, men – 14 (93,3%), women – 1 (6,4%). We compared the level of plasma markers with control group (n=13), which are healthy person; level of exhaled NO – with fixed norm (less then 7 ppb). While measuring Spirman’s correlation level between exhaled NO and all other plasma makers we found the most representative parameter from systemic biomarkers. <bold>Results:</bold> are present in table 1. <table-wrap><object-id>erj;66/suppl_69/PA451/TB1</object-id><object-id>T1</object-id><object-id>TB1</object-id><table><colgroup><col></col><col></col><col></col><col></col></colgroup><tbody><tr><td>Parameter</td><td>COPD</td><td>Control group</td><td>Spirman’s correlation with exhaled NO</td></tr><tr><td>C-RP, mg/l</td><td>7,44±0,35*</td><td>6,25±0,14</td><td>R=0,127, p=0,65</td></tr><tr><td>fibrinogen, g/l</td><td>3,32±0,18*</td><td>2,85±0,17</td><td>R=0,179, p=0,523</td></tr><tr><td>MMP-2, cu</td><td>178,7±6,58*</td><td>92,5±4,10</td><td>R=0,6, p=0,016</td></tr><tr><td>MMP-9, cu</td><td>134,5±11,8*</td><td>103,1±5,55</td><td>R=0,309, p=0,26</td></tr><tr><td>hyaluronic acid, mg/ml</td><td>0,29±0,07*</td><td>0,15±0,02</td><td>R=0,008, p=0,974</td></tr><tr><td>exhaled NO, ppb</td><td>18,5±2,40</td><td></td><td></td></tr></tbody></table><table-wrap-foot><fn> Note: *- p≤0,05 </fn></table-wrap-foot></table-wrap> <bold>Conclusions:</bold> 1. Both local and systemic markers increase even in stable phase of COPD. 2. Only one plasma marker MMP-9 correlate with exhaled NO, and thus may be considered the most revealing one.

The work compares various radiometry methods for accurately mapping fault zones in complex and simple mining and geological conditions. It also examines the conditions required for their application to confidently evaluate the degree of geodynamic activity of the identified tectonic fault zones, including minimizing negative impacts during the construction of various facilities, including linear transport and energy infrastructure. The authors analysed various materials on previously conducted research on this topic to compare approaches to the problem and develop numerical dependencies. In addition, it was evaluated the dependencies obtained by many researchers and their advantages and disadvantages. After thoroughly analysing previously developed methods and numerical dependencies for determining the degree of activity of tectonic faults, the most preferable method was selected from the list based on several criteria. The applicability parameters of the previously proposed numerical scale of fault activity based on radonometry data were clarified. The numerical scale itself was significantly improved. Based on the analysis of existing radonometry methods, the most acceptable method and an improved universal scale for determining the activity of tectonic faults, which is quite suitable for practical purposes, were proposed. The developed universal numerical scale still has no analogies. Radonometry in its various forms can be used to reliably evaluate the degree of geodynamic activity of the identified tectonic fault zones. For this purpose, the corresponding methodology and numerical scale were chosen.

The paper presents a novel approach to evaluating the fatigue performance of asphalt pavements using fuzzy set theory to model the uncertainty in the elastic moduli of asphalt layers. The method integrates fuzzy numbers with an analytical multilayer elastic pavement model. By applying α-cut representation and defuzzification techniques, the model delivers fuzzy estimations of critical strain responses and associated fatigue lives under traffic loading. The proposed methodology captures uncertainty in material properties more realistically than conventional deterministic approaches. The effectiveness of this technique is demonstrated through the Asphalt Institute's fatigue models for tensile and compressive strains. The results provide fuzzy bounds for fatigue life parameters and enable robust pavement design under material uncertainty. By incorporating fuzzy-modulus-based parameters into layered elastic half-space models, the proposed method significantly improves the predictive reliability of pavement performance.

The article explores the linguistic and stylistic representation of nomadic identity in literary discourse. The analysis is based on the works of Ukrainian and international authors that reflect a specific vision of space, movement, and self-identification. The methodology combines linguistic stylistic analysis with a discourse-based approach and elements of cognitive linguistics. Key linguistic means that convey the experience of loss, transition, and interaction with the “Other” are identified. It is established that literary text not only reflects historical memory but also actively constructs it, forming flexible models of identity. The findings may be applied in further interdisciplinary research in the fields of culture, language, and literature within the frameworks of postmemory, transculturality, and mobile subjectivity.

Accurate finite‑element representation of unconventional concretes – slag‑blended, recycled‑aggregate, fiber‑reinforced, or ultra‑thin formwork mixes requires more than the legacy smeared‑crack tools that still dominate industrial workflows. This theses reviews research on 3D material modelling of plain, fiber‑ and aggregate‑modified concretes in the ANSYS environment, with emphasis on constitutive law selection, experimental calibration, and numerical tactics that preserve convergence once cracking and crushing initiate. Damage‑plasticity formulations such as Concrete Damaged Plasticity (CDP) consistently outperform simpler Drucker–Prager or Willam–Warnke approaches, provided their numerous parameters are tuned to targeted laboratory data. Special issues arising in thin‑walled elements and permanent formwork stability, mesh objectivity, staged casting pressure are examined, and five recent case studies are dissected to illustrate best practice. The review concludes with recommendations for practitioners and identifies emerging trends, notably machine‑learning‑assisted calibration and phase‑field fracture, that are poised to reshape concrete simulation in commercial FEA.

Abstract The purpose of the work is determination of the height of particulate solids lifting in an iron ore open pit after detonation of the borehole charge. The paper considers the upward motion of large spherical iron ore particles under the action of dynamic impulse during detonation of the borehole charge. The detonation products are ejected from an inclined borehole drilled on the surface of the open pit ledge. In result of integration of the equation of motion of spherical particle, formulas for determining the time and height of its ascent are obtained. The self-similar mode of particle flow is considered. Graphical dependences of the lifting height of spherical particle of iron ore on its diameter and angle of inclination of the borehole are plotted. The obtained results are in agreement with the experimental data

The operational energy efficiency of new buildings in the EU should be at the level of ultra-low or near-zero energy buildings. It is therefore relatively difficult to achieve further energy savings. However, the pre-operational phase—raw material sourcing, manufacturing, transportation, and construction—offers significant energy savings and greenhouse gas reduction opportunities, referred to as embodied energy and equivalent CO2 emissions. Unlike operational energy, no standard or legislative criteria have yet been established for embodied energy. Setting maximum embodied energy values converted to the unit of heated building area, accounting for building shape factor, and differentiating between high-mass and lightweight constructions are proposed. This study illustrates assessing environmental indicators based on building shape, highlighting the necessity of relative assessments over absolute values to favour energy efficiency. It also emphasizes that precise criteria should derive from authentic data collected during the energy certification and building permitting processes. Integrating assessments of embodied energy and operational energy demand facilitates a comprehensive evaluation of buildings’ environmental performance.