Engineering Technologies and Developments (Ukraine)

The study describes the methodological features of proactive diagnostics for high-load Oracle DBMS, based on correlational analysis of the contents of the alert.log journal and trace files generated by background processes. The significance of the approach is driven by the substantial increase in the cost of unplanned downtime in 2024–2025: in the financial sector, losses reach approximately 5 million US dollars per hour of unavailability. As a conceptual foundation, an algorithmic method is proposed for identifying latent relationships between background process activity and subsequent critical failures, aimed at detecting non-obvious causal–temporal dependencies that remain outside the scope of traditional monitoring. The proposed methodology is based on correlation analysis of alert.log and trace files, supplemented by temporal modeling of events and predictive analytics methods. It enables detection of performance degradation, resource leaks, system anomalies, and logical errors before an incident occurs, thereby significantly reducing the likelihood of unplanned downtime. The methodological framework integrates latent semantic indexing tools for processing unstructured textual corpora and statistical modeling based on the Jensen–Shannon divergence to quantitatively assess changes in event distributions and for forecasting failure probability. Such a synthesis enables a transition from simple anomaly fixation to a probabilistic interpretation of system-state degradation based on weak signals contained in diagnostic traces. Particular attention is given to describing interactions between redo and ARCH processes, the operational specifics of standby mechanisms, as well as the role of RMAN as a means of preventing data loss through proper organization of backup and recovery. The methodology is formalized as a cyclic diagnostic loop: Log Collection ? Normalization ? Correlation ? Anomaly Detection ? Classification ? Prediction ? Prevention/Remediation. The formulated results establish a theoretical basis and applied guidelines for evolving from reactive monitoring to autonomous management of data infrastructure, reducing the dependence of the availability of an organization’s critical services on the human factor and operational errors.

Abstract Disparities in formal bioinformatics training exacerbate the global skills gap, impeding the democratized application of advanced genomic technologies. To bridge this divide, we introduce a scalable, hybrid training framework designed to rapidly accelerate regional bioinformatics capacity. We exemplify this approach through the Eastern European Bioinformatics and Genomics (EEBG) workshop series — a cross-disciplinary initiative that pairs international faculty with local institutions to deliver modular, hands-on curricula. Functioning as a structured knowledge-transfer pipeline, the series has catalyzed a sustainable educational ecosystem, evidenced by the establishment of multiple independent summer schools across the region. The assessment of the 2025 EEBG workshop in Kraków, Poland, validates the model’s viability; participant metrics confirm high efficacy in skill acquisition (mean satisfaction: 4.4/5.0) and community building. Crucially, the hybrid delivery mode dismantled geographic barriers, serving as a vital mechanism for maintaining scientific continuity for researchers facing displacement and crisis. Synthesizing these outcomes, we define the core features of a replicable blueprint for scientific readiness in resource-constrained environments. We conclude by presenting a strategic roadmap — organized around infrastructure standardization, governance sustainability, and geographical expansion — for adapting this regional proof-of-concept into a global export-ready model, offering a critical path toward ensuring universal access to genomic innovation.

Background. Retainment of biologically-argumented relationship between surrounding periodontium and teeth restored with different kinds of prosthetic restorations is highly important predictive factor for long-termed clinical and functional success of complex dental rehabilitation, especially in cases when treatment is focused on the corrections of present anterior esthetic-functional disharmony. Objective. To represent possibilities of complex prosthetic-driven surgery-including approach applied for the treatment of esthetic-functional disharmony, while using tooth form as major criterion for successful outcome planning. Case report. This clinical case describes a prosthetically driven rehabilitation approach integrating digital planning, provisional restorations, and bone recontouring surgery to achieve optimal esthetic and functional outcomes. Comprehensive diagnostics encompassed cone-beam computed tomography (CBCT), intraoral scanning, and standardized smile photographic protocol to evaluate hard and soft tissue parameters. Surgical intervention involved gingivectomy, ostectomy, and osteoplasty performed according to the contours predetermined by the provisional restorations, ensuring a prosthetically-driven approach for the hard tissue modification. Laboratory-fabricated provisional restorations were utilized to establish a new reference of cemento-enamel junction (CEJ), which served as a critical guide for subsequent bone management procedures. Definitive zirconia restorations were fabricated based on the digital design files of the provisional restorations, ensuring precise transfer of the planned teeth morphology. During one-year follow-up patient demonstrated stable esthetic outcomes, healthy periodontal conditions, and functional occlusal relationships. This case underscores the effectiveness of digitally guided planning combined with close interdisciplinary collaboration among the prosthodontist, oral surgeon, and dental technician in managing complex anterior rehabilitations. Pivotal component contributing to treatment success was the reproduction of new CEJ on the provisional restorations in conjunction with a vertical preparation technique, which facilitated controlled soft tissue adaptation and long-term stability. Conclusion. Integration of advanced digital workflows with biologically-oriented preparation techniques enables to provide precise control over gingival zenith positioning and supports prosthetically-driven surgical strategies in complex anterior esthetic-functional rehabilitations. Provisional restorations are pivotal for shaping the emergence profile and guiding soft tissue maturation, while the use of multilayer zirconia frameworks and digital impression protocols ensures optimal biocompatibility, accuracy, and marginal integrity. Present case report highlights that the synergy between digital planning, meticulous provisionalization, and close clinician–laboratory collaboration is a critical determinant of long-term stability, esthetic harmony, and patient satisfaction. Ethical aspects Authors confirm that they have followed all relevant ethical norms and requirements during the treatment described within present case report and preparation of present manuscript. Authors obtained full patient’s agreement regarding publication of following case report, and such was approved by corresponding consent form signed by the patient personally. No information in present case report may disclose any personal data about the patient, which further may be used for patient’s personal identification. Any information related to patient’s identity disclosure was either deleted or anonymized within present case report. Authors confirm that they have followed CARE guidelines while preparing present case report with intention for further publication. Conflict of Interest Author does not have any potential conflict of interests that may influence the decision to publish this article. Funding No funding was received to assist in preparation and conduction of this research, as well as in composition of this article.

The New England Journal of Medicine (NEJM) from a previous DTJournal’s editorial became for us a role model not only as a perfect example how the Editorial Fellowship1 should be organized but also motivate us to launch a new Section – Similar to Images in Clinical Medicine we are starting a Section Pics in Oral & Maxillofacial Surgery. Advantages of that Section according to our opinion are: 1) one-page publication, 2) it includes short description (in average, 161 words) of clinical condition, treatment, follow-up (what reduces an author`s time), 3) have one, two, or three images, and, sometimes, a supplemental video, 4) images have no description below as they have in-text descriptions (what a brilliant idea from NEJM`s staff), 5) have no references (what increases as well the speed of article’s writing, decreases time and cost of lay-out), and 6) can be indexed in PubMed/MEDLINE similar to research and reports papers, etc. In conclusion, we are thrilled to introduce you a founding section`s editor Dr. Camilo Mosquera from Bogotá. Who`s made a strong impact in DTJournal with his Columbian colleagues presenting a delightful article dedicated to paragonimiasis.

New approach to laser engraving of half tone images has been proposed and tested. Combining two basic approaches to laser engraving -- single pulse mask imaging and raster element construction by pack of laser pulses -- the new system constructs every individual raster element by imaging on the workpiece surface a dynamic mask of controlled size. The dynamic mask shape corresponds to the required raster element shape. This approach offers several important advantages over the conventional ones: (1) analog control of the mask shape provides gray level continuum, thus ensuring the image quality, unattainable by other means; (2) raster element marking by single laser pulse provides very good marking rate. It takes only one scan of the writing laser head to mark raster line. Much more powerful laser pulses can be used to engrave complete raster element by single pulse instead of its point-by-point construction by consecutive laser pulses; (3) the influence of laser beam quality parameters, such as beam divergence, and power instabilities on the gray level has been greatly reduced because raster element shape primarily depends on the mask shape and not on the power level and beam divergence. Dynamic mask system can be used both with cw and pulsed laser. Gray scale tones can be reproduced by the linear raster line width in the first case. Advantages of the new device have been demonstrated by engravings on stone, wood, etc. made with 50 W carbon-dioxide laser.